[go: up one dir, main page]

WO2014208650A1 - Appareil de production et procédé de production pour feuille fusionnée - Google Patents

Appareil de production et procédé de production pour feuille fusionnée Download PDF

Info

Publication number
WO2014208650A1
WO2014208650A1 PCT/JP2014/066939 JP2014066939W WO2014208650A1 WO 2014208650 A1 WO2014208650 A1 WO 2014208650A1 JP 2014066939 W JP2014066939 W JP 2014066939W WO 2014208650 A1 WO2014208650 A1 WO 2014208650A1
Authority
WO
WIPO (PCT)
Prior art keywords
opening
sheet
air
support member
suction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2014/066939
Other languages
English (en)
Japanese (ja)
Inventor
拓郎 梁島
伸二 浜本
康至 今井
邦利 山田
淳 岩崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kao Corp
Original Assignee
Kao Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kao Corp filed Critical Kao Corp
Priority to BR112015032673A priority Critical patent/BR112015032673A2/pt
Priority to CN201480037048.8A priority patent/CN105358109B/zh
Publication of WO2014208650A1 publication Critical patent/WO2014208650A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15804—Plant, e.g. involving several steps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
    • A61F13/15739—Sealing, e.g. involving cutting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies
    • A61F13/496—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies in the form of pants or briefs
    • A61F13/4963—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies in the form of pants or briefs characterized by the seam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1648—Laser beams characterised by the way of heating the interface radiating the edges of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
    • B29C65/1661—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined scanning repeatedly, e.g. quasi-simultaneous laser welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1696—Laser beams making use of masks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/747—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using other than mechanical means
    • B29C65/7473—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using other than mechanical means using radiation, e.g. laser, for simultaneously welding and severing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/729—Textile or other fibrous material made from plastics
    • B29C66/7294—Non woven mats, e.g. felt
    • B29C66/72941—Non woven mats, e.g. felt coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8167—Quick change joining tools or surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83431—Roller, cylinder or drum types; Band or belt types; Ball types rollers, cylinders or drums cooperating with bands or belts
    • B29C66/83433—Roller, cylinder or drum types; Band or belt types; Ball types rollers, cylinders or drums cooperating with bands or belts the contact angle between said rollers, cylinders or drums and said bands or belts being a non-zero angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83431—Roller, cylinder or drum types; Band or belt types; Ball types rollers, cylinders or drums cooperating with bands or belts
    • B29C66/83435—Roller, cylinder or drum types; Band or belt types; Ball types rollers, cylinders or drums cooperating with bands or belts said rollers, cylinders or drums being hollow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F2013/15821—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
    • A61F2013/15861—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for bonding
    • A61F2013/15878—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for bonding by thermal bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
    • B29C65/1612—Infrared [IR] radiation, e.g. by infrared lasers
    • B29C65/1619—Mid infrared radiation [MIR], e.g. by CO or CO2 lasers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/137—Beaded-edge joints or bead seals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/48—Wearing apparel
    • B29L2031/4871—Underwear
    • B29L2031/4878—Diapers, napkins

Definitions

  • the present invention relates to a sheet fusion product manufacturing apparatus and method.
  • a heat roll apparatus has been widely used for joining stacked sheets.
  • a method of welding using a laser beam is also known.
  • Patent Document 1 a sheet laminate in which a plurality of sheets are stacked is deformed into a shape along the peripheral surface of a rotary roll having a laser light transmitting portion on the peripheral surface, and the sheet is conveyed.
  • a method of irradiating the laminated body with laser light from the inside of the rotary roll to fuse the sheets in the laminated sheet is described.
  • a sheet laminate to be fused is conveyed while being sandwiched between a rotating roll and a belt, and fusion is performed by irradiation with laser light while being conveyed.
  • a gas containing resin fume may be generated from the sheet laminate to be fused.
  • Resin fume is a fine solid particle generated by solidification of vapor of a solid substance or a chemical reaction of a gaseous substance, and there is a possibility that it will ignite if it stays in air at a high concentration. Therefore, local exhaust of the gas containing resin fume is required.
  • the sheet laminate since the sheet laminate is conveyed while being sandwiched between a rotating roll and a non-breathable belt, it may not be easy to exhaust the generated gas.
  • the present invention provides an apparatus for manufacturing a sheet fusion body having a seal edge portion fused in a state where edges of a plurality of sheets overlap.
  • the manufacturing apparatus includes: an irradiation head having a lens for condensing laser light; and a support member that supports one surface of a belt-shaped sheet laminate in which a plurality of sheets including a resin material are overlapped at least in part. It has.
  • the support member has a slit-like opening that is long in the width direction of the sheet laminate, through which the condensed laser light can pass from the support member side.
  • An air outlet for blowing air toward the opening or an air suction opening for sucking air from the opening is provided at a position adjacent to the opening.
  • the strip-shaped sheet laminate supported by the support member is divided by irradiating the laser beam condensed from the support member side along the slit-shaped opening, and overlapping the edge of the division.
  • a plurality of sheet fusion bodies having the sealing edge are continuously manufactured.
  • this invention provides the manufacturing method of the sheet
  • At least a part of the plurality of sheets includes a resin material.
  • one surface of a strip-shaped sheet laminate in which a plurality of sheets are stacked is brought into contact with a support member having an opening through which laser light can pass, and the strip-shaped sheet laminate is The band-shaped sheet laminate is divided by irradiating laser light having an oscillation wavelength that is absorbed by the sheets constituting the sheet laminate and generating heat from the support member side through the opening.
  • step of forming the seal edge by fusing the cut edges of a plurality of sheets generated by the division there is a step of forming the seal edge by fusing the cut edges of a plurality of sheets generated by the division.
  • air is blown toward the opening, or air is sucked from the opening to blow off the gas generated at the time of dividing and fusing. Remove or suction to remove.
  • FIG. 1 is a perspective view schematically showing an example of a pants-type disposable diaper manufactured by the manufacturing apparatus and the manufacturing method of the present invention.
  • FIG. 2 is a cross-sectional view schematically showing a cross section taken along line II in FIG. 3 (a) and 3 (b) are diagrams corresponding to FIG. 2 of the side seal part (seal edge part) on one side and the vicinity thereof in a state where the waist opening of the diaper shown in FIG. 2 is expanded.
  • FIG. 4 is a schematic perspective view showing an embodiment of the production apparatus of the present invention.
  • FIG. 5 is a perspective view showing a main part of the manufacturing apparatus shown in FIG.
  • FIG. 6 is a perspective view showing a further main part of the manufacturing apparatus shown in FIG. FIG.
  • FIG. 7 is a diagram schematically showing a state in which a diaper continuous body (band-shaped sheet laminate) is introduced into the manufacturing apparatus shown in FIG. 4.
  • FIG. FIG. 7B is a cross-sectional view taken along line II-II in FIG. 8A is a perspective view showing the main part inside the manufacturing apparatus shown in FIG. 4, and
  • FIG. 8B is a perspective view showing the main part in FIG. 8A.
  • 9 is a cross-sectional perspective view showing the main part inside the manufacturing apparatus shown in FIG.
  • FIG. 10 is a perspective view showing a main part of a cylindrical roll in the manufacturing apparatus shown in FIG.
  • FIG. 11 is a perspective view which shows typically the manufacturing process of a diaper continuous body (band-shaped sheet laminated body).
  • FIG. 12 (a) to 12 (c) respectively form a side seal portion (seal edge) at the same time as the diaper continuous body (band-like sheet laminate) is divided using the manufacturing apparatus shown in FIG. It is explanatory drawing explaining a mode to do.
  • FIG. 13 is a view corresponding to FIG. 12 (c) of another example of a method for manufacturing a pants-type disposable diaper using the laser-type bonding apparatus shown in FIG. 4.
  • FIG. 14 is a schematic view showing the main part of the support member of the manufacturing apparatus of the present invention.
  • Fig.15 (a) is a perspective view which shows the modification of the principal part of the manufacturing apparatus shown in FIG. 4, and is a longitudinal cross-sectional view in FIG.15 (b).
  • FIG. 16 (a) and 16 (b) are diagrams (a view corresponding to FIG. 12 (b)) showing a modification of the main part of the manufacturing apparatus shown in FIG.
  • FIG. 17 is a perspective view (corresponding to FIG. 8B) showing another main part inside the manufacturing apparatus shown in FIG. 18 is a perspective view showing another main part on the outer surface side of the manufacturing apparatus shown in FIG.
  • the sheet fusion body manufactured by the manufacturing apparatus and the manufacturing method of the present embodiment that is, a sheet fusion body having a seal edge portion fused in a state where the edge portions of a plurality of sheets overlap each other is, for example, FIG. Or it is the underpants type disposable diaper 1 which comprises the exterior
  • the pants-type disposable diaper 1 will be described based on FIGS. 1 to 3.
  • the diaper 1 includes an absorbent main body 2 and an exterior body 3 that is disposed on the non-skin contact surface side of the absorbent main body 2 and fixes the absorbent main body 2. And the both side edges of the exterior body 3 on the ventral side 1A and the both side edges of the exterior body on the back side 1B are joined together to form a pair of side seal parts 4, 4, a waist opening 8 and a pair of A pants-type disposable diaper in which leg openings 9, 9 are formed.
  • the side seal portion 4 is a portion corresponding to the “seal edge portion fused in a state where the edge portions of a plurality of sheets overlap”.
  • the side seal part 4 is mentioned as one of the main characteristic parts of the diaper 1 manufactured with the manufacturing apparatus of this embodiment and the manufacturing method of this embodiment.
  • the outer edge 4 a of the side seal portion 4 generated by the division in the cross-sectional view in the direction orthogonal to the extending direction of the side seal portion 4 (width direction of the diaper 1) is the exterior body 3 ( Of the four sheets 31 and 32 constituting the exterior body 3 on the inner side of the exterior body 3 including the outer edge 4a and further on the inside thereof.
  • a fused portion 40 is formed, and the fused portion 40 has a width that is wider at the center portion in the thickness direction (vertical direction in FIG. 2) of the exterior body 3 than at both end portions (upper end portion and lower end portion).
  • the width of the fusion bonded portion 40 gradually increases toward the central portion in the thickness direction. It is formed in a so-called crescent or half-moon shape. Note that the fused portion 40 shown in FIG. 2 has a crescent shape.
  • the side seal part is a cause that reduces the feeling of wearing of the diaper due to the presence of the fused part formed by melting and solidifying the sheet forming material, which is harder and softer than other parts of the diaper. It is a possible part.
  • the fusion part 40 is formed in a crescent shape or a half moon shape in a sectional view in the width direction of the diaper 1, the fusion part in the conventional side seal part
  • the ratio of the fused portion 40 existing in the corner portion 3S of the side edge portion of the exterior body 3 constituting the side seal portion 4 is reduced.
  • the feeling of wear of a diaper improves compared with a conventional product.
  • the central portion in the thickness direction of the side edge portion of the exterior body 3 (the corner 3S and the other surface on one surface side of the exterior body 3 shown in FIG. 3), which is a part that greatly affects the fusion strength of the side seal portion 4. Since a sufficient amount of the fusion part 40 exists in the middle part of the part sandwiched between the side 3S, the side seal part 4 has a practically sufficient fusion strength, and the diaper 1 Inconveniences such as tearing of the side seal 4 during wearing are unlikely to occur.
  • the side seal part 4 (fusion
  • FIG. 3 shows the side seal portion 4 (fused portion 40) in a state where the waist opening 8 is expanded when the diaper 1 is worn. In the state where the waist opening portion 8 is expanded, the side seal portion 4 is normally in a state where the fused portion 40 is exposed as shown in FIG. 3A, but the outer edge 4a of the side seal portion 4 is the exterior. It is difficult to visually recognize from the outside due to the convex arc shape toward the inside of the body 3 and the fact that the fused portion 40 is smaller than the conventional side seal portion (fused portion).
  • the outer edge 4a of the side seal portion 4 has a convex arc shape toward the inner side of the exterior body 3, so that depending on the forming material of the sheets 31, 32, as shown in FIG.
  • the corner 3S of the side edge of the exterior body 3 on the abdominal side 1A side and the corner of the side edge of the exterior body 3 on the back side 1B side The portion 3S may approach and the separation distance between the corner portions 3S and 3S may be reduced. Therefore, the fusion part 40 located between the two corners 3S and 3S is difficult to touch by the hand and is externally located by the two corners 3S and 3S located closer to the outer side of the diaper 1 than the fusion part 40. Therefore, not only the feeling of wearing the diaper 1 but also the appearance is improved.
  • the seal edge portion 41 of the side seal portion 4 has an outer edge 4a of the fused portion 40 in a cross section orthogonal to the direction in which the side seal portion 4 extends when worn. It has a shape recessed toward the inside of the wearing article. Further, the fused portion 40 in the side seal portion 4 has a narrow width W4 appearing on the outer surface of the diaper in the same cross section, and the width W4 is preferably 5 mm or less, more preferably 3 mm or less, and even more preferably 2 mm or less. It is.
  • the side seal part 4 (fusion part 40) becomes difficult to visually recognize from the outside in the wearing state or the natural state (contracted state) of the diaper 1, for example, after the diaper 1 is used, it is protected from the infant who is the wearer.
  • a person for example, a mother
  • removes the diaper it is difficult to find the side seal portion 4, and there is a possibility that it takes time to remove the diaper 1.
  • the color of the constituent member of the diaper 1 that crosses the side seal portion 4 is set to the ventral side of the side seal portion 4. The method of making it differ by (front side) and back side (rear side) is mentioned.
  • the color of the waist elastic member 5 or the exterior body 3 (the outer layer sheet 31 and the inner layer sheet 32) between the abdominal side 1A (front view) and the back side 1B (back view) of the diaper 1.
  • the method of making different is mentioned.
  • the side seal portion 4 is positioned at the color switching portion, so the visibility of the side seal portion 4 is increased and the occurrence of the inconvenience is effectively prevented.
  • the laser bonding apparatus 20 which is a preferred embodiment of the manufacturing apparatus of the present invention and the manufacturing method of this embodiment will be described in detail with reference to FIGS.
  • the laser-type bonding device 20 (a device for producing a sheet fusion body having a seal edge portion fused in a state where the edges of a plurality of sheets are overlapped) is a lens that collects laser light 30.
  • a support member 21 that conveys while supporting one surface of an irradiation head 312 having 311 and a belt-like sheet laminate (diaper continuum 10) in which a plurality of sheets including a resin material are at least partially stacked;
  • Belt-type pressurization provided with an endless pressurization belt 24 (pressing member) and a plurality of (three) rolls 25a, 25b, 25c that rotate in a state where the pressurization belt 24 is bridged as pressurization means.
  • Device 26 As shown in FIG.
  • the laser-type bonding apparatus 20 irradiates a continuous diaper 10 (a belt-shaped sheet laminate) separately produced in advance with a laser beam to form a pair of side seal parts 4, 4 ( It is an apparatus for continuously producing a pants-type disposable diaper 1 (sheet fused body) having an exterior body 3 (sheet fused body) having a seal edge).
  • the laser-type bonding apparatus 20 includes a hollow cylindrical roll 23 including an annular support member 21 that rotates around a rotation axis (in the direction of arrow A), and a hollow cylindrical roll 23.
  • An irradiation head 312 is provided that irradiates the laser beam 30 toward the support member 21 that is disposed in the hollow portion and forms the peripheral surface portion of the cylindrical roll 23.
  • the laser-type bonding apparatus 20 is an apparatus in which a belt-like diaper continuous body 10 (sheet laminated body) is wound around the outer peripheral surface of an annular support member 21 and conveyed.
  • the laser-type bonding apparatus 20 includes a tension adjustment mechanism (not shown) that can increase or decrease the tension of the pressure belt 24 wound around the outer peripheral surface of the support member 21 (the peripheral surface portion of the cylindrical roll 23).
  • the pressure applied to the diaper continuous body 10 (sheet laminated body) can be appropriately adjusted by the support member 21 and the pressure belt 24.
  • an irradiation head 312 that irradiates the laser beam 30 toward the support member 21 that forms the peripheral surface portion of the cylindrical roll 23 is provided in the hollow portion of the hollow cylindrical roll 23.
  • the irradiation head 312 is a galvano scanner (an apparatus having a motor shaft with a mirror) that freely scans the laser beam 30, and the laser beam 30 is indicated in a direction parallel to the rotation axis of the cylindrical roll 23 (indicated by reference sign X in FIG. 4).
  • a mechanism for making the spot diameter constant is provided.
  • the laser irradiation mechanism has such a configuration, so that the irradiation point of the laser light 30 is set in the circumferential direction of the cylindrical roll 23 and in a direction orthogonal to the circumferential direction (direction indicated by reference sign X in FIG. 4. It can be arbitrarily moved in both directions of the direction parallel to the rotation axis.
  • the support member 21 has a slit-like opening 27 that is long in the width direction of the diaper continuous body 10 (direction indicated by a symbol X in FIG. 4) through which the condensed laser beam 30 can pass from the support member 21 side. is doing. Specifically, as shown in FIG. 4, the support member 21 forms a peripheral surface portion (contact portion with the workpiece) of the cylindrical roll 23, and forms left and right side edges of the cylindrical roll 23.
  • the pair of annular frames 22 are fixedly held between the pair of annular frames 22 and 22.
  • the support member 21 is composed of a single annular member having the same length as the circumferential length of the annular frame 22, and is made of a metal having heat resistance such as iron, aluminum, stainless steel, copper, or ceramics. Become.
  • FIGS. 5 to 10 show main parts of the laser-type bonding apparatus 20.
  • the laser type bonding apparatus 20 is supported by a pair of side plates 101 erected on the base 100.
  • the laser type bonding apparatus 20 has a fixed shaft 102.
  • the laser-type joining apparatus 20 is supported between the side plates 101 by the fixed shaft 102 being spanned between the pair of opposing side plates 101.
  • a bearing 106 is disposed between the cylindrical roll 23 and the fixed shaft 102 constituting the laser type bonding apparatus 20, and the cylindrical roll 23 is rotatable with respect to the fixed shaft 102 by the bearing 106.
  • the cylindrical roll 23 has a pulley 103 positioned between one frame body 22 and one side plate 101.
  • a driving belt 104 is stretched around the pulley 103.
  • the drive belt 104 is connected to a drive source 105 placed on the base 100. By driving the drive source 105, the rotational motion is transmitted to the pulley 103 via the drive belt 104, and the cylindrical roll 23 rotates in the direction indicated by the arrow in FIG.
  • pipe bodies 140 a and 140 b are arranged inside the cylindrical roll 23.
  • the tubular bodies 140a and 140b are arranged so that the longitudinal direction thereof coincides with the axial direction of the cylindrical roll 23 and one end thereof is positioned inside the cylindrical roll 23.
  • an air suction member (see FIG. 9 described later) is attached.
  • the other ends of the tubes 140a and 140b are located outside the cylindrical roll 23, and the other ends are connected to an air suction device (not shown).
  • the support member 21 has the slit-shaped opening 27 which is a light passing portion through which laser light can pass.
  • 7A and 7B the support member 21, the pressure belt 24, and the diaper continuum 10 sandwiched between the support member 21 and the pressure belt 24 are shown for ease of explanation. 7 (a) and 7 (b), it is described as if it is moving horizontally from the left side to the right side. Actually, these members are cylindrical as shown in FIGS. The roll 23 rotates and moves in a curved state corresponding to the cylindrical shape.
  • the opening 27 has a rectangular shape in plan view, and its longitudinal direction is the width direction of the support member 21 (the direction indicated by the symbol X in FIG. 7A). In a direction parallel to the rotation axis of the cylindrical support member 21, and a plurality of the support members 21 are formed at predetermined intervals in the circumferential direction of the cylindrical support member 21.
  • the support member 21 allows the laser light to pass through the opening 27, but does not allow the laser light to pass (transmit) at portions other than the opening 27.
  • the method of forming the opening 27 in the support member 21 includes 1) a method of drilling the opening 27 in a predetermined portion of the support member 21 by etching, punching, laser processing, or the like.
  • the interval between two adjacent members forms a slit-shaped opening 27.
  • the method 2) is adopted.
  • the light passing portion through which the laser light can pass is composed of an opening 27 that penetrates the support member 21 in the thickness direction (slit shape), and therefore the opening 27 in the diaper continuous body 10.
  • the portion that overlaps (the portion 10C to be divided) is merely in contact with the pressure belt 24 and is not sandwiched between the support member 21 and the pressure belt 24 (pressing member). Strictly speaking, therefore, the pressing force generated by being sandwiched between the members 21 and 24 is not generated in the parting portion 10C.
  • the parting portion 10C that overlaps with the opening 27 itself is not sandwiched between the members 21 and 24, but the vicinity thereof, that is, the portion that overlaps with the vicinity of the opening 27 (opening edge) in the diaper continuous body 10.
  • the parting planned portion 10C of the diaper continuous body 10 is a portion restrained by the pressing force between the members 21 and 24, and the pressing force is practically the same. It is an affected part.
  • the support member 21 has a recess 28 on its outer surface (contact surface with the workpiece).
  • a plurality of recesses 28 are formed at predetermined intervals in the circumferential direction of the cylindrical support member 21, and a slit-shaped opening 27 is formed in a region (convex part) located between two adjacent recesses 28, 28. Is formed.
  • the opening 27 is formed in the center in the circumferential direction of the cylindrical support member 21 in the convex portion.
  • the thickness of the diaper continuous body 10 is not uniform because the concave portion 28 is formed on the outer surface of the support member 21, a relatively thick portion (for example, an absorbent main body) in the diaper continuous body 10. It is possible to introduce the diaper continuous body 10 onto the outer surface of the support member 21 so that the second arrangement region 2 is within the recess 28. Then, when the diaper continuous body 10 is introduced onto the support member 21 as such, the contact surface (the other surface 10b) of the diaper continuous body 10 with the pressure belt 24 is substantially as shown in FIG. When the pressure belt 24 is pressed against the diaper continuum 10, the portion of the diaper continuum 10 that is located on the convex portion in which the opening 27 is formed (divided by reference numeral 10 ⁇ / b> C in FIG.
  • the predetermined portion and the vicinity thereof) are uniformly pressed in the thickness direction at a predetermined pressure by wrapping the diaper continuous body 10 around the support member 21 with a predetermined tension and the pressure belt 24.
  • the support member 21 includes a first support portion 111 having the above-described recess portion 28 and a second support portion constituting a protrusion portion positioned between the two adjacent recess portions 28 and 28. 112.
  • the first support portions 111 and the second support portions 112 are alternately arranged along the rotation direction of the cylindrical roll 23. 5 and 6 show a state in which a part of the first support portions 111 has been removed in order to help understanding of the internal structure of the cylindrical roll 23.
  • the entire circumferential surface of the cylindrical roll 23 is configured by the first support portion 111 and the second support portion 112, and the inside of the cylindrical roll 23 cannot be visually recognized through the circumferential surface.
  • the first support portion 111 is provided with a number of suction holes 111 a that are open on the outer surface thereof, that is, on the surface facing the diaper continuous body 10.
  • the suction hole 111 a communicates with a communication hole 111 b formed so as to extend in a direction orthogonal to the thickness direction of the first support portion 111.
  • the communication hole 111 b extends in the same direction as the axial direction of the cylindrical roll 23.
  • the communication hole 111 b is open on the side surface of the first support portion 111.
  • the second support portion 112 has a communication hole 112 b formed so as to extend in a direction orthogonal to the thickness direction of the second support portion 112.
  • the communication hole 112 b extends in the same direction as the axial direction of the cylindrical roll 23.
  • the communication hole 112b communicates with a suction hole 112a shown in FIG. Further, the communication hole 112 b is opened on the side surface of the second support portion 112.
  • the second support portion 112 constituting the support member 21 has a recess 120 on the inner surface, that is, the surface facing the irradiation head 312.
  • the bottom of the recess 120 is open, and the slit-shaped opening 27 is exposed at the position of the opening.
  • a plurality of suction holes 112 a are opened in the wall surface of the recess 120.
  • the suction hole 112 a is formed at a position adjacent to the opening 27.
  • the suction holes 112a are arranged along the direction in which the opening 27 extends. Further, the suction hole 112a communicates with the communication hole 112b described above.
  • the suction hole 112 a is for sucking air from the slit-shaped opening 27.
  • the outer surface, ie, the surface facing the diaper continuous body 10 may be comprised by another member.
  • the gap between the slit-shaped openings 27 can be easily adjusted, and the diaper continuous body 10 can be divided and fused by irradiation with the laser beam 30 more successfully.
  • 8 and 9 show the second support portion 112 having another member 122.
  • the separate member 122 has a plate shape, for example.
  • the suction ring 130 is disposed on the side surface of the cylindrical roll 23 and is in a fixed state independently of the rotation of the cylindrical roll 23.
  • An opening (not shown) is provided on the surface of the suction ring 130 facing the cylindrical roll 23. This opening is provided at a position communicating with the communication hole 111b of the first support member 111 and the communication hole 112b of the second support member. Further, this opening communicates with a suction source (not shown).
  • air suction members 141 a and 141 b are arranged inside the cylindrical roll 23.
  • the suction members 141 a and 141 b have a substantially U-shaped cross section in a direction orthogonal to the axial direction of the cylindrical roll 23.
  • the suction members 141a and 141b are connected to one end of the pipes 140a and 140b (see FIG. 5) described above.
  • the suction members 141 a and 141 b have openings 142 a and 142 b that face the inner periphery of the cylindrical roll 23.
  • the laser-type bonding apparatus 20 configured as described above slits the laser light 30 collected from the support member 21 side into the belt-like diaper continuous body 10 (sheet laminated body) in a pressurized state by the pressure belt 24.
  • a sheet fusion body (exterior having a pair of side seal portions 4, 4) that is irradiated and cut along the opening 27 and is fused in a state where the edges of the division are overlapped.
  • a plurality of pants-type disposable diapers 1) having the body 3 can be manufactured continuously. At the time of division and fusion, air is sucked from the slit-shaped opening 27 through the suction hole 112a which is the first suction system, and the gas generated at the time of division and fusion is sucked and removed.
  • the second suction system is also operated, suction is performed through the openings 142a and 142b of the suction members 141a and 141b, and the gas generated at the time of division and fusion is sucked and removed.
  • produces at the time of a division
  • the laser-type bonding apparatus 20 of the present embodiment includes the annular support member 21, the sheet fusion body having a seal edge portion (an outer package having a pair of side seal portions 4 and 4) is more efficiently provided.
  • a pants-type disposable diaper 1) having a body 3 can be continuously produced. This is because the support member 21 is annular, and in the state where the belt-like diaper continuous body 10 is wound around the support member 21, the applied pressure is evenly applied to the diaper continuous body 10 and is continuous. This is because an applied pressure can be applied.
  • the suction When air is sucked from the slit-shaped opening 27 through the suction hole 112a which is the first suction system, the suction may be performed only while the laser beam is irradiated toward the opening 27, or the laser Suction may be continuously performed during operation of the type bonding apparatus 20.
  • the suction may be performed only while the laser beam is irradiated toward the opening 27 as in the case of the first suction system, or laser-type bonding. Suction may be performed continuously while the device 20 is operating.
  • the slit irradiated with the laser beam 30 from the viewpoint of imparting practically sufficient fusion strength to the side seal portion 4 (seal edge) and reducing the processing energy necessary for producing the sheet fusion product.
  • the ratio ( ⁇ / W) of the diameter ⁇ of 30 spots (portions irradiated with the laser beam 30) is preferably 0.05 or more, more preferably 0.1 or more, particularly preferably 0.4 or more, and , Preferably 8 or less, more preferably 7 or less, particularly preferably 2 or less, more specifically preferably 0.05 to 8, more preferably 0.1 to 7, particularly preferably 0.4 to 2. is there.
  • the width W of the slit-shaped opening 27 is 0.1 to 4.0 mm.
  • the “sheet constituting the diaper continuous body 10” is not limited to a sheet (for example, the outer layer sheet 31 in the above embodiment) constituting one surface of the sheet laminate (a contact surface with the support member), Any sheet may be used as long as it constitutes the sheet laminate.
  • the laser light applied to the diaper continuous body 10 is an oscillation wavelength that is absorbed by the sheet and generates heat for the individual sheets constituting the sheet laminated body is used depending on the material of the sheet. It is determined by the relationship with the oscillation wavelength of the laser beam.
  • the sheet constituting the sheet laminate is a synthetic resin nonwoven fabric or film
  • a CO 2 laser, a YAG laser, an LD laser (semiconductor laser), a YVO 4 laser, a fiber laser, or the like may be used as the laser light.
  • a CO 2 laser, a YAG laser, an LD laser (semiconductor laser), a YVO 4 laser, a fiber laser, or the like may be used as the laser light.
  • seat which comprises the diaper continuous body 10 contains polyethylene, a polyethylene terephthalate, a polypropylene etc. as a synthetic resin, as an oscillation wavelength which can be absorbed into this sheet
  • the laser output and the like of the laser beam 30 can be appropriately selected in consideration of the material and thickness of the sheet constituting the diaper continuous body 10.
  • the manufacturing method of the present embodiment is a sheet laminate in which the condensed laser beam 30 can pass through one surface 10a of a belt-like sheet laminate (diaper continuous body 10) in which a plurality of sheets are stacked.
  • the belt-like sheet laminate (diaper continuum 10) conveyed while being pressed against a support member 21 having a slit-like opening 27 that is long in the width direction (X direction) of the diaper continuum 10).
  • the irradiation head emits laser light 30 having an oscillation wavelength that is absorbed by the sheet constituting the sheet laminate (diaper continuous body 10) along the slit-shaped opening 27 from the support member 21 side and heats the sheet.
  • the strip-shaped sheet laminate (diaper continuous body 10) is divided, and at the same time, the cut edges of a plurality of sheets in a pressurized state generated by the division are fused.
  • a “band-shaped sheet laminate in which a plurality of sheets are stacked” a plurality of sheet laminates (precursor of a pants-type disposable diaper in which the side seal portion 4 is not formed)
  • the diaper continuous body 10 in which the body) is continuous in one direction is separately manufactured, and the diaper continuous body 10 is individually divided by irradiation of the laser beam 30, and at the same time, the pressurized state generated by the division is obtained.
  • the side seal portions 4 and 4 are formed by fusing the cut edge portions of a plurality of sheets.
  • the resin material preferably includes a heat-sealable synthetic resin such as polyethylene, polyethylene terephthalate, and polypropylene, and is preferably made of a nonwoven fabric, a film, a laminate sheet of a nonwoven fabric and a film, or the like.
  • nonwoven fabric those normally used in the technical field can be used without particular limitation, and specific examples include an air-through nonwoven fabric, a heat roll nonwoven fabric, a spunlace nonwoven fabric, a spunbond nonwoven fabric, and a meltblown nonwoven fabric.
  • sheet laminate it is preferable that all of a plurality of sheets constituting the sheet laminate include a resin material.
  • the waist elastic member 5 forming the waist gathers, the waist elastic member 6 forming the waist gathers, and the leg elastic member 7 forming the leg gathers are stretched to a predetermined stretch rate. Distribute multiple pieces each.
  • the hot melt adhesive is continuously or intermittently applied to the waist elastic member 5 and the waistline elastic member 6 by an adhesive application machine (not shown),
  • the leg elastic member 7 is disposed while forming a predetermined leg-circumferential pattern via a known swing guide (not shown) that reciprocates perpendicular to the sheet flow direction.
  • an adhesive coating machine (not shown) is attached to a predetermined portion of one or both of the two sheets. ) To apply hot melt adhesive.
  • the elastic members such as the waist elastic member 5 and the waistline elastic member 6 are divided by the laser light irradiation in the sheets 31 and 32 (parts where the side seal portion 4 is to be formed) (described above).
  • the elastic members such as the waist elastic member 5 and the waistline elastic member 6 are divided by the laser light irradiation in the sheets 31 and 32 (parts where the side seal portion 4 is to be formed) (described above).
  • reference numeral 10C reference numeral
  • the band-shaped exterior body 3 in which a plurality of elastic members 5, 6, 7 are arranged in an expanded state between the band-shaped sheets 31, 32 is formed.
  • a plurality of waistline elastic members 6 and a plurality of leg portions are formed using an elastic member precutting means (not shown) so as to correspond to positions where the absorbent main body 2 described later is disposed.
  • the elastic member 7 is pressed and divided into a plurality of pieces so that the contraction function is not expressed.
  • the elastic member precut means include an elastic member dividing portion used in the method for manufacturing a composite elastic member described in JP-A-2002-253605.
  • an adhesive such as a hot melt adhesive is applied in advance to the absorbent main body 2 manufactured in a separate process, and the absorbent main body 2 is rotated 90 degrees to form a belt-shaped outer package. 3 is intermittently supplied and fixed on the inner layer sheet 32 constituting the sheet 3.
  • the adhesive for fixing the absorbent main body may be applied in advance to the position where the absorbent main body 2 is arranged in the inner layer sheet 32 instead of the absorbent main body 2.
  • a leg hole LO ′ is formed inside the annular portion surrounded by the leg elastic member 7 in the strip-shaped exterior body 3 in which the absorbent main body 2 is disposed.
  • This leg hole forming step can be carried out by using a technique similar to that in a conventional method for manufacturing this type of article, such as a rotary cutter and a laser cutter.
  • the leg holes are formed after the absorbent main body 2 is arranged on the belt-shaped outer package 3, but the leg holes may be formed before the absorbent main body 2 is arranged.
  • the strip-shaped exterior body 3 is folded in the width direction (a direction perpendicular to the conveying direction of the exterior body 3). More specifically, as shown in FIG. 11, both side portions 3 a, 3 a along the conveying direction of the strip-shaped exterior body 3 are folded back so as to cover both longitudinal ends of the absorbent main body 2. After fixing both ends in the longitudinal direction, the outer package 3 is folded in the width direction together with the absorbent main body 2. In this way, the target diaper continuous body 10 (band-shaped sheet laminated body) is obtained.
  • the diaper continuous body 10 (band-shaped sheet laminated body) separately manufactured in this way is used as shown in FIG.
  • the pants-type disposable diaper 1 sheet fusion body having the seal parts 4 and 4 (seal edges) is continuously manufactured.
  • the diaper continuous body 10 (band-shaped sheet laminate) is applied in the direction of arrow A in a state where a predetermined tension is applied by a guide roll (not shown). Introduced on the outer surface of the support member 21 forming the peripheral surface portion of the rotationally driven cylindrical roll 23, wound around the outer peripheral surface of the annular support member 21, and conveyed in the circumferential direction by the rotation of the cylindrical roll 23.
  • the support member 21 is separated by an unillustrated lead roll, nip roll, or the like.
  • the diaper continuous body 10 is wound around the support member 21 forming the peripheral surface portion of the cylindrical roll 23 with a predetermined tension and is conveyed so as to be in pressure contact with the pressure belt 24.
  • the portion sandwiched between the supporting member 21 and the pressing belt 24 of the pressing member 26 and the vicinity thereof are pressed (compressed) in the thickness direction before being divided by the irradiation of the laser beam, so that the diaper continuous body
  • the diaper continuum 10 can be more efficiently compressed when 10 includes a nonwoven fabric, and as a result, the diaper continuum 10 during compression is irradiated with laser light and divided.
  • the side seal part 4 (seal edge) can be fused. Further improvement in strength is achieved.
  • the gas generated at the time of cutting and fusing is sucked through the first suction system (see FIG. 8) including the suction holes 112a and the second suction system (see FIG. 9) including the openings 142a and 142b. There is no risk of ignition due to resin fume contained in the gas.
  • the gas generated by the irradiation of the laser beam 30 is removed by suction through the first suction system including the suction hole 112a.
  • the first suction system is used for suction.
  • the suction hole 112a functions as an air outlet. The ejection of air from the suction hole 112a toward the opening 27 is particularly effective when the gap between the openings 27 is small.
  • the air When air is ejected toward the opening 27, the air may be ejected only while the laser beam is irradiated toward the opening 27, or continuously while the laser-type bonding apparatus 20 is in operation. Then, it may be ejected. In the case of continuous ejection, the ejection is performed before the laser beam is irradiated. By doing so, the fume gas around the opening 27 can be efficiently removed, and adhesion of resin or the like to the opening 27 can be further prevented, which is preferable.
  • the opening 27 protrudes and opens toward the pressing member that is a pressing member.
  • the position of the communication hole 111b provided in the first support part 111 and the communication hole 112b provided in the second support part 112 are provided. It is preferable to make the position different. Specifically, it is preferable that the distance from the center of the cylindrical roll 23 to the communication hole 111b is different from the distance from the center of the cylindrical roll 23 to the communication hole 112b. Then, the previously described suction ring 130 (see FIG. 5) is divided into two systems, and one of the divided systems (that is, the suction ring) faces the communication hole 111b and the other divided system ( That is, the blow ring is preferably opposed to the communication hole 112b.
  • the cylindrical roll 23 has a zone for sucking air and a zone for ejecting air on the circumferential surface of the cylindrical roll 23 while making a round.
  • suction power and jet power change.
  • a plurality of grooves (not shown) provided in the surface facing the communication hole 111b and the communication hole 112b in the suction ring and blow ring described above are provided in the circumferential direction of the cylindrical roll 23.
  • the blow ring of the system facing the communication hole 112 b in the suction ring 130 described above is connected in the circumferential direction of the cylindrical roll 23.
  • the suction ring 130 is disposed over the half of the circumferential direction of the cylindrical roll 23, that is, over a range of 180 degrees).
  • This angle range is the same as the range in which the laser beam 30 is irradiated as described above in the laser bonding apparatus 20 of the present embodiment.
  • This angle range is the same as the range around which the pressure belt 24 is wound.
  • the rotation angle of the support member 21 (cylindrical roll 23) from when the diaper continuous body 10 is introduced onto the support member 21 to when the diaper continuous body 10 leaves the support member 21 can be, for example, 90 to 270 degrees, and more preferably 120 degrees. ⁇ 270 degrees.
  • the range of the angle (pressure contact angle) at which the diaper continuous body 10 is pressed against the support member 21 by the pressure belt 24 of the pressing member 26 is the pressure contact over the entire circumference in the circumferential direction of the cylindrical support member 21 (cylindrical roll 23). In the case of 360 degrees, it is preferably 90 to 270 degrees, and more preferably 120 to 270 degrees.
  • the seal edge portion forming step for forming the seal edge portions (side seal portions 4 and 4) in the diaper manufacturing method of this embodiment will be described in detail.
  • the pressure belt 24 is pressed against the other surface 10b of the diaper continuous body 10 (the surface on the opposite side to the one surface 10a that is a contact surface with the support member 21). Then, while conveying the diaper continuum 10 in a pressurized state, the irradiation head 312 irradiates the diaper continuum 10 from the irradiation head 312 along the slit-shaped opening 27 from the support member 21 side.
  • the diaper continuous body 10 is divided into individual pieces, and at the same time, the cut edges of a plurality of sheets in a pressurized state caused by the division are fused together to form side seal parts 4 and 4 (seal edge parts).
  • the pants-type disposable diaper 1 (sheet fusion body) comprising the exterior body 3 (sheet fusion body) having a pair of side seal portions 4 and 4 (seal edge portions) is continuously manufactured.
  • the irradiation of the laser beam 30 was performed on the diaper continuum 10 in a pressurized state (compressed state) by being sandwiched between the support member 21 and the pressure belt 24 by the irradiation. This is preferable from the viewpoint of reliably fusing the cutting edges of a plurality of sheets to improve the fusing strength of the side seal portion 4.
  • FIG. 12 (a) and 12 (b) show how the side seal portion 4 (seal edge) is formed at the same time as the diaper continuous body 10 (band-like sheet laminate) is divided using the laser-type bonding apparatus 20.
  • FIG. FIG. FIG. 12A schematically shows a portion 10 ⁇ / b> C to be divided by the laser beam 30 of the diaper continuum 10 and the vicinity thereof.
  • the diaper continuous body 10C in the present embodiment is divided in the longitudinal direction (conveying direction) in the region where the absorbent main body 2 of the diaper continuous body 10 is not disposed. It is the center of A).
  • Such a portion 10C to be divided includes an end portion of the waist opening 8 (see FIG.
  • the four-layer structure portion includes two sheets (an outer layer sheet 31 and an inner layer sheet 32) constituting one exterior body 3 in the ventral side portion 1A, and a back side portion 1B. It consists of the same two sheets 31 and 32 that constitute one exterior body 3, and these four sheets are laminated.
  • the eight-layer structure portion is folded so that both side portions 3a and 3a of the strip-shaped outer package 3 cover both longitudinal ends of the absorbent main body 2 when the diaper continuous body 10 is manufactured ( 11)), two exterior bodies 3 exist on each of the abdominal portion 1A and the back side portion 1B, and a total of these four exterior bodies 3 and 3 are laminated.
  • 8 The sheets 31 and 32 are laminated.
  • elastic members such as the waist elastic member 5 and the waistline elastic member 6 may be interposed between the overlapping sheets 31 and 32, In FIG. 12, the illustration of the elastic member is omitted from the viewpoint of easy explanation.
  • the 4-layer structure portion will be mainly described, but unless otherwise specified, the 8-layer structure portion is configured in the same manner as the 4-layer structure portion, and the side seal portion 4 is formed.
  • the sheet (inner layer sheet 32) is a sheet in which either one or both absorb the laser beam 30 and generate heat.
  • all of the four sheets 31 and 32 constituting the parting planned portion 10 ⁇ / b> C are sheets (nonwoven fabrics) that absorb the laser beam 30 and generate heat.
  • the two overlapping sheets in the vicinity of the parting portion 10 ⁇ / b> C and the vicinity thereof may be joined by an adhesive or the like before irradiation with the laser beam 30, or may not be joined at all.
  • the diaper continuous body 10 is arranged in the direction of arrow A so that one surface 10a abuts on the support member 21 and the parting portion 10C is positioned on the slit-shaped opening 27.
  • the pressure belt 24 While being introduced onto the rotating support member 21 and being pressed against the other surface 10b, the pressure belt 24 is pressed (compressed) in the thickness direction while being conveyed in the direction of arrow A.
  • the laser beam 30 is irradiated along the slit-shaped opening part 27 from the supporting member 21 side with respect to 10 C of division parts 10C in the conveyance and pressurization state.
  • the irradiation point of the laser beam 30 is configured to be arbitrarily movable in the circumferential direction of the cylindrical roll 23 by a galvano scanner (not shown), and the opening 27 moves along the circumferential direction. Therefore, the laser beam 30 is continuously irradiated for a certain period of time during the conveyance of the parting planned portion 10C located on the opening 27.
  • the forming materials (fibers, etc.) of the sheets 31 and 32 existing in the parting portion 10C are vaporized by the heat generated by the direct irradiation of the laser light 30 and disappear.
  • the forming material existing in the vicinity of the parting portion 10 ⁇ / b> C is indirectly heated by the laser beam 30 and melted. As a result, as shown in FIG.
  • the parting portion 10C having a four-layer structure is melted and a single sheet sheet laminate (diaper precursor) is cut from the diaper continuous body 10, At the same time that the diaper continuum 10 is divided, the cut edges of the four sheets 31 and 32 in the sheet laminate of the single sheets produced by the division, and the diaper continuous 10 separated. The cut edges of the four sheets 31 and 32 are fused to form the fused portion 40. Each of these cut edges is pressed (compressed) by being sandwiched between the support member 21 and the pressure belt 24 from before the formation (before the diaper continuous body 10 is divided by irradiation with the laser beam 30). ). The shape of the fusion
  • melting part 40 becomes a crescent moon, for example, as shown in FIG.12 (c).
  • the diaper continuum 10 (scheduled part 10C) made of a nonwoven fabric includes a support member 21 made of a metal material and a pressure belt 24 during and immediately after irradiation of the laser beam 30 onto the parted part 10C of the diaper continuous body 10. It is presumed that it is interposed between the two.
  • the metal material which is the main forming material of the support member 21 and the pressure belt 24 (pressing member) that sandwich the diaper continuous body 10 (the outer layer sheet 31 and the inner layer sheet 32) from above and below is the main material of the sheets 31 and 32. Since the thermal conductivity is higher than that of the nonwoven fabric as the forming material, the heat generated in the sheets 31 and 32 by the irradiation of the laser beam 30 is cooled by the outside air, and at the same time, the support member 21 in contact with the sheets 31 and 32 or The corner of the side edge portion of the exterior body 3 constituting the side seal portion 4 formed by dividing the diaper continuous body 10 by irradiation of the laser beam 30 where it is easily absorbed by the pressure belt 24 (pressing member).
  • the portion 3S Since the portion 3S is in contact with the support member 21 or the pressure belt 24 having a higher thermal conductivity than the corner portion 3S, the heat generated in the corner portion 3 is generated by the members 21, 4 is rapidly absorbed in, as a result, the corner portion 3 is hardly become a hot extent that the fused portion 40 is formed, therefore, the proportion of fused portion 40 is very small site.
  • the central portion in the thickness direction of the side edge portion of the outer package 3 (the central portion of the portion sandwiched between the corner 3S on the one surface side of the outer package 3 and the 3S on the other surface side) has high thermal conductivity.
  • the pressure belt 24 is made of a metal material such as iron, aluminum, stainless steel, copper, or ceramics, and at least a part of the plurality of sheets 31 and 32 constituting the diaper continuous body 10 (band-shaped sheet laminate).
  • the outer layer sheet 31 forming the outer surface of the outer package 3 includes a resin material in a part thereof, and specifically, for example, is preferably made of a nonwoven fabric.
  • the pressure belt 24 (pressing member) is preferably made of a metal material having air permeability, and is preferably made of, for example, a metal mesh or a metal punching metal. Moreover, it is preferable that the resin material is contained in all the sheets of the plurality of sheets 31. As a nonwoven fabric, what is normally used in the said technical field can be especially used without a restriction
  • a light passage portion through which laser light can pass is Since it consists of the opening part 27 (slit shape) which penetrates the supporting member 21 in the thickness direction, the part which overlaps with the opening part 27 (scheduled part 10C) in the diaper continuous body 10 (sheet laminated body) and the supporting member 21
  • the pressurizing force generated by being sandwiched between the pressure belt 24 is not generated. Since the portion 10C is a portion where the applied pressure is practically affected, the fused portion 40 is formed. In order to form the fused portion 40 more stably, it is effective to further increase the pressure applied by the clamping between the members 21 and 24.
  • FIG. 14 is an enlarged schematic view of the main part of FIG.
  • the outer surface 21a of the support member 21 on which the diaper continuous body 10 is arranged in the outer surface 21a of the support member 21 on which the diaper continuous body 10 is arranged, the outer surface 21a is located near the slit-shaped opening 27 (region within 35 mm from the edge of the opening 27) rather than the peripheral portion.
  • a projecting portion 45 projecting to the upper diaper continuous body 10 side (pressure belt 24 side) is formed. More specifically, the protrusion 45 is formed on each of a pair of opening edges extending in the longitudinal direction of each of the plurality of openings 27 (the width direction of the support member 21) on the outer surface 21 a of the support member 21.
  • Each protrusion 45 is continuous over the entire length in the longitudinal direction along the opening 27 and has a rectangular shape in plan view.
  • the protrusion height 45 h (protrusion height from the peripheral portion) of each protrusion 45 is constant without changing over the entire length of the protrusion 45.
  • the top of the protrusion 45 may be flat or a curved surface having a predetermined curvature, and the curved surface may be parallel to the outer surface 21 a of the cylindrical support member 21.
  • the protrusion 45 is formed in the vicinity (opening edge) of the outer surface 21a of the support member 21 and a step is provided between the vicinity of the opening 27 and the peripheral portion thereof. Since the vicinity of the part to be divided in the diaper continuous body 10 is located at the top of the projecting part 45 at a higher position, the applied pressure at the corresponding part in the vicinity of the opening locally increases. Therefore, the fall of the local pressurizing force in the diaper continuous body 10 is effectively prevented, the fusing of the diaper continuous body 10 is performed more stably, and the finally obtained diaper 1 (sheet fusion) The fusing strength of the side seal part 4 (seal edge part) in the body is further improved.
  • the protrusion height 45h (see FIG. 14) of the protrusion 45 is preferably 0.1 mm or more, more preferably 1 mm or more, and preferably 10 mm or less. More preferably, it is 8 mm or less, more specifically, it is preferably 0.1 mm or more and 10 mm or less, more preferably 1 mm or more and 8 mm or less.
  • the width 45w of the protrusion 45 is preferably 1 mm or more, more preferably 2 mm or more, and preferably 20 mm or less, and more preferably. Is 10 mm or less, more specifically, preferably 1 mm or more and 20 mm or less, more preferably 2 mm or more and 10 mm or less.
  • the support member 21 of the present embodiment can suck the gas generated by the irradiation of the laser beam 30 more efficiently.
  • the support member 21 shown in FIGS. 15A and 15B has a narrow space portion 120a on the side facing the irradiation head (not shown), that is, the inner surface side of the cylindrical roll, of the two surfaces. Is formed.
  • the narrow space 120 a is formed adjacent to the opening 27 and communicates with the opening 27.
  • the narrow space 120a is formed along the direction in which the opening 27 extends, that is, the axial direction of the cylindrical roll.
  • the narrow space 120 a has a shape that allows the laser light emitted from the irradiation head to reach the opening 27.
  • the suction port 112a opens toward the narrow space portion 120a.
  • the suction port 112a communicates with the communication hole 112b described above.
  • the narrow space 120 a has a maximum length D when viewed in a cross section in a direction orthogonal to the axial direction of the cylindrical roll 23, which is sufficiently smaller than a length L along the direction in which the opening 27 extends. .
  • the maximum length D refers to the length in a line segment having the longest length across the cross-sectional shape when the narrow space portion 120a is observed in a cross section in a direction orthogonal to the axial direction of the cylindrical roll 23.
  • the maximum length D can be determined in relation to the spot diameter ⁇ of the laser beam.
  • the maximum length D may be determined so that the value of D / ⁇ is 1 or more and 15 or less.
  • the narrow space portion 120 a is defined by a second support portion 112 constituting a part of the support member 21 and a plate-like separate member 122.
  • the shape when the narrow space portion 120a is observed in a cross section in a direction orthogonal to the axial direction of the cylindrical roll 23 is substantially a rhombus in the present embodiment. Therefore, the length of the longer diagonal line of the approximately rhombus is the maximum length D described above. Note that the cross-sectional shape is not limited to a substantially rhombus as long as a narrow space portion can be formed.
  • the laser light emitted from the irradiation head reaches the opening 27 through the slit space 120b and the narrow space 120a.
  • the slit-shaped space portion 120b is a narrow space defined by a pair of opposing second support members 112.
  • the slit-shaped space 120 b has a narrow width along the circumferential direction of the cylindrical roll 23, and extends long along the direction in which the opening 27 extends.
  • the slit-shaped space 120 b extends deeply along the radial direction of the cylindrical roll 23.
  • one end side along the radial direction of the cylindrical roll 23 opens toward the inner surface side of the cylindrical roll 23, and the other end side along the radial direction communicates with the narrow space portion 120a. is doing.
  • the width D ′ along the circumferential direction of the cylindrical roll 23 of the slit-shaped space 120 b can be determined based on the relationship with the laser beam spot diameter ⁇ described above. For example, it is preferable to determine the maximum length D ′ so that the value of D ′ / ⁇ is 1 or more and 5 or less.
  • the second suction port 112c is opened in the slit-shaped space 120b.
  • the second suction port 112c communicates with the communication hole 112b. That is, both the suction port 112a and the second suction port 112c described above communicate with the communication hole 112b. Therefore, suction through the suction port 112a and the second suction port 112c is performed by operating a suction source (not shown) connected to the communication hole 112b.
  • the opening 27 and the suction port 112a communicate with each other through the narrow space, the gas generated by the irradiation of the laser beam 30 is difficult to diffuse and the suction efficiency can be increased. it can. Furthermore, by using the suction by the second suction port 112c together, the gas that could not be sucked by the narrow space portion 120a by the suction port 112a can be sucked by the second suction port 112c, so that the suction efficiency can be further enhanced, Gas diffusion to the inside of the cylindrical roll 23 can be prevented. Note that the suction port 112a and the second suction port 112c can be used as air outlets instead of the purpose of suction.
  • the strip-shaped sheet laminated body is divided and the two pressed states generated by the division are obtained.
  • Sheet fusion body having a sealing edge portion (side seal portion 4) fused in a state where the edge portions of the sheets overlap with each other with the laser output of Can be efficiently manufactured.
  • fusion and division can be performed in the same process, a non-sealing edge in which the cut edges of the sheet are not fused is not generated, so that there is an effect of reducing material.
  • the cut edges of the sheets 31 and 32 are heated and melted during the irradiation of the laser beam 30 and immediately after the end of the irradiation, but are separated from the diaper continuous body 10 by the irradiation of the laser beam 30.
  • the leaf sheet laminate (diaper precursor) and the diaper continuum 10 are maintained in a pressurized state by the support member 21 and the pressure belt 24, and after the irradiation is completed, the outside air and the support member 21 are added.
  • the material is quickly cooled and solidified by heat transfer to the pressure belt 24 to form the fused portion 40 in which the forming material (fibers and the like) of the cut edge is melted and integrated.
  • the fused part 40 by forming the fused part 40, one of the pair of side seal parts 4, 4 in one diaper 1 is formed.
  • the cutting edge portions of the sheets 31 and 32 may be forcibly cooled by using known cooling means such as a suction device and an exhaust device to promote the formation of the fused portion 40.
  • the laser beam 30 is moved so that the irradiation point hits another opening 27 adjacent in the direction opposite to the conveyance direction A, and the other opening 27 10C is irradiated to another portion 10C that is to be divided.
  • another part 10C to be divided is divided and fused in the same manner as described above, and the other side seal part 4 (fused part 40) that forms a pair with the previously formed side seal part 4 is formed.
  • the pants-type disposable diaper 1 sheet fused body
  • the exterior body 3 sheet fused body having a pair of side seal portions 4 and 4 (seal edge portions) is continuous.
  • the diaper is larger than the width W of the slit-like opening 27 irradiated with the laser beam 30 (see FIG. 12B.
  • the portion 27 may be located at a portion sandwiched between a pair of opening edges along a direction orthogonal to the conveyance direction A. That is, even in the diaper continuous body 10, even in a portion not sandwiched between the support member 21 and the pressure belt 24 (pressing member), the vicinity of the opening 27 (opening edge), that is, as described above, both The fused part 40 can be formed if the pressure applied by the clamping between the members 21 and 24 is practically affected.
  • the light passage part in each of the above embodiments is a slit-like opening part that penetrates the support member 21 in the thickness direction, for example, the opening part 27 shown in FIG. 12B, but the light passage part according to the present invention is used.
  • the portion is not limited to this, and for example, as shown in FIG. 16A, the vicinity (the portion where the support member does not exist) of the end portion (outer edge) 21s of the support member 21 can be used as the light passage portion. it can.
  • the sheet laminate 10 includes a portion 10A sandwiched between the support member 21 and the pressure belt 24, and a portion 10B that is not in contact with the support member 21, and the portion 10A and the vicinity thereof are laser light.
  • the portion of the portion 10B excluding the vicinity of the portion 10A (the portion separated from the end portion 21s of the support member 21 by a predetermined distance or more) is not Pressurized (non-compressed) state.
  • the laser beam 30 is applied to the diaper continuum 10 in a state where only one side is pressurized with reference to the portion irradiated with the laser beam, as shown in FIG.
  • the diaper continuous body 10 is divided into the part 10A side and the part 10B side, the cut edges of the sheet on the part 10A side are pressed from before the parting.
  • the sheets are fused because they are in the state, but the cut edges of the sheet on the part 10B side are not fused because they are in a non-pressurized state from before the division.
  • “in the vicinity of the end (outer edge) 21 s of the support member 21” is a region where the diaper continuous body 10 (band-shaped sheet laminate) is in a pressurized state by the support member 21, more specifically. Is a region within 2 mm, more preferably within 1 mm from the end 21 s of the support member 21.
  • the light passage portion is in the vicinity of the end portion 21s of the support member 21, and the laser light 30 is emitted through the light passage portion to the diaper continuum 10 in a one-side pressurized state.
  • the fusion part 40 is surely formed in a crescent shape or a half moon shape in a cross-sectional view in the width direction of the diaper 1 and is practically sufficiently melted in the side seal part 4 (seal edge part). From the viewpoint of imparting adhesion strength and reducing the processing energy required for manufacturing the sheet fusion product, the spot of the laser beam 30 (the laser beam 30 is reflected from the end portion 21s of the support member 21 to the diaper continuous body 10).
  • the ratio ( ⁇ / W ′) of the diameter ⁇ of the spot to the distance W ′ to the center of the irradiated portion) is preferably 0.1 or more, more preferably 0.2 or more, particularly preferably 0.8. 8 or more Preferably, it is 16 or less, more preferably 14 or less, particularly preferably 8 or less, more specifically preferably 0.1 to 16, more preferably 0.2 to 14, particularly preferably 0.8 to 8. It is.
  • the pressure belt 24 (see FIG. 12B) as the pressing member in the embodiment corresponds to the opening 27 (light passage portion) on the support member 21 side, as shown in FIG. 16B.
  • the opening 29 has the same shape and dimensions as the opening 27 in plan view. In the case where the opening 29 is provided, as shown in FIG. 10, it is located at a position outside the cylindrical roll 23 for the purpose of collecting the gas released to the outside of the cylindrical roll 23 in association with the ejection of air.
  • a gas collection hood 143 as a dust collection member at the position of the opening 29.
  • the opening 29 is provided in a portion of the pressing member facing the opening 27 (light passage portion) across the sheet laminate 10, and the hood 143 is provided in a position facing the opening 29.
  • the air ejected through the opening 29 can be sucked by the hood 143, so that the gas can be removed more efficiently. can do.
  • effects such as prevention of contamination of the pressing member, suppression of overheating of the pressing member, promotion of cooling of the pressing member, and promotion of cooling of the fused portion 40 can be expected. As shown in FIG.
  • the sheet laminated body may be one in which two sheets, three sheets, five sheets or more are stacked in addition to those in which four sheets are stacked as shown in FIG.
  • the tension of the diaper continuous body 10 is controlled on the laser bonding apparatus 20 in order to wrap the diaper continuous body 10 (sheet laminated body) around the cylindrical roll 23 (support member 21) without generating wrinkles or sagging.
  • a mechanism may be provided.
  • the laser-type bonding apparatus 20 may include a mechanism for removing resin or the like attached to the contact surface of the pressure belt 24 with the diaper continuous body 10. All the parts of only one embodiment described above can be used as appropriate.
  • the laser type bonding apparatus 20 including the cylindrical roll 23 is used.
  • the laser type bonding apparatus 20 including a flat plate member may be used instead of the cylindrical roll 23.
  • a suction slit 112c may be formed as shown in FIGS.
  • the suction slit 112 c can be regarded as a plurality of suction holes 112 a connected in the axial direction of the cylindrical roll 23.
  • the exterior body is divided and the fusion part is formed by melting the exterior body using a heat source, and the formation of the fusion part causes the protrusion of the diaper to be worn.
  • the melting of the outer package using a heat source is not limited to the irradiation of the laser beam to the outer package, as described above, and infrared or halogen light may be used as a non-contact heat source.
  • Other methods may be used, for example, thermocompression bonding of the exterior body using a known heat roll device or the like, or applying ultrasonic vibration to the exterior body using a known ultrasonic vibration device or the like. it can.
  • the division of the outer package and the formation of the fusion part may be performed simultaneously or after the formation of the fusion part.
  • An apparatus for producing a sheet fusion body having a seal edge fused in a state where edges of a plurality of sheets overlap with each other An irradiation head having a lens for condensing laser light, and a support member that supports one surface of a belt-like sheet laminate in which a plurality of sheets including a resin material are stacked at least in part,
  • the support member has a slit-like opening that is long in the width direction of the sheet laminate, through which the condensed laser light can pass from the support member side,
  • An air outlet for blowing air toward the opening, or an air suction opening for sucking air from the opening is provided at a position adjacent to the opening.
  • the band-shaped sheet laminate supported by the support member was divided by irradiating the laser beam collected from the support member side along the slit-shaped opening and overlapping the edge of the division.
  • an air suction port is provided at a position separated from the air outlet or the air suction port ⁇ 1>.
  • An apparatus for producing a sheet fusion body according to the above. ⁇ 3> And further comprising a pressing member that supports the other surface of the sheet laminate, wherein a dust collecting member is disposed at a position facing the opening and on the pressing member side, and the supporting member side The apparatus for producing a sheet fusion body according to ⁇ 1> or ⁇ 2>, wherein air is blown out toward the pressing member side.
  • ⁇ 4> The apparatus for manufacturing a sheet fusion body according to ⁇ 3>, wherein the pressing member is preferably made of a metal material having air permeability, and is preferably made of, for example, a wire mesh or a metal punching metal.
  • ⁇ 5> The apparatus for manufacturing a sheet fusion body according to ⁇ 3> or ⁇ 4>, wherein the pressing member has an opening in a portion corresponding to the opening on the support member side.
  • ⁇ 6> The apparatus for producing a sheet fusion body according to any one of ⁇ 3> to ⁇ 5>, wherein air is blown out through the air blowing outlet before the laser beam is irradiated.
  • the support member includes a cylindrical roll rotatable around an axis, and the cylindrical roll has a zone for sucking air and a zone for ejecting air on a circumferential surface of the cylindrical roll.
  • ⁇ 9> The sheet fusion body manufacturing apparatus according to any one of ⁇ 1> to ⁇ 8>, wherein the support member has a recess on an inner surface thereof.
  • ⁇ 11> The apparatus for producing a sheet fusion body according to ⁇ 9> or ⁇ 10>, wherein a plurality of the air suction holes or the air outlets are open on a wall surface of the recess.
  • the support member comprises a cylindrical roll rotatable about an axis; A suction ring is disposed on a side surface of the cylindrical roll; The apparatus for producing a sheet fusion body according to any one of ⁇ 1> to ⁇ 11>, wherein the suction ring is in a fixed state independently of rotation of the cylindrical roll.
  • An opening is provided on the surface of the suction ring facing the cylindrical roll, The opening is provided at a position communicating with a communication hole provided in the support member, and is also communicated with a suction source; ⁇ 12> The production of the sheet fusion body according to ⁇ 12>, wherein only the communication hole communicating with the opening of the suction ring forms a suction path, and suction is performed only from the air suction hole on the extension of the suction path. apparatus.
  • the support member comprises a cylindrical roll rotatable about an axis;
  • a narrow space portion that communicates with the opening and allows laser light emitted from the irradiation head to reach the opening is the opening.
  • the nonwoven fabric is an air-through nonwoven fabric, a heat roll nonwoven fabric, a spunlace nonwoven fabric, a spunbond nonwoven fabric, or a meltblown nonwoven fabric.
  • a pant-type disposable diaper manufacturing apparatus for manufacturing a pant-type disposable diaper comprising an exterior body having a pair of side seal parts, ⁇ 1> thru
  • ⁇ 22> The other surface of the sheet laminate is brought into contact with the pressing member, a dust collecting member is disposed at a position facing the opening and on the pressing member side, and ⁇ 20> or ⁇ 21>
  • the pressing member is preferably made of a metal material having air permeability, and is preferably made of, for example, a wire mesh or a metal punching metal.
  • ⁇ 24> ⁇ 22> or ⁇ 23> The method for manufacturing a sheet fusion body according to ⁇ 22>, wherein the pressing member has an opening in a portion corresponding to the opening on the support member side.
  • the supporting member includes a cylindrical roll rotatable around an axis, and the cylindrical roll having a zone for sucking air and a zone for ejecting air is used on the circumferential surface of the cylindrical roll. ⁇ 20> thru
  • the other surface of the sheet laminate is brought into contact with the pressing member, ⁇ 20> thru
  • the support member comprises a cylindrical roll rotatable about an axis; A suction ring is disposed on a side surface of the cylindrical roll; The sheet fusion body manufacturing method according to any one of ⁇ 20> to ⁇ 27>, wherein the suction ring is in a fixed state independently of rotation of the cylindrical roll.
  • ⁇ 29> An opening is provided on the surface of the suction ring facing the cylindrical roll, The opening is provided at a position communicating with a communication hole provided in the support member, and is also communicated with a suction source;
  • ⁇ 28> The production of a sheet fusion body according to ⁇ 28>, wherein only the communication hole communicating with the opening of the suction ring forms a suction path, and suction is performed only from the air suction hole on the extension of the suction path.
  • Method. ⁇ 30> The method for producing a sheet fusion body according to ⁇ 28> or ⁇ 29>, wherein the suction ring is provided over an irradiation range of the laser light, and suction is performed in the irradiation range of the laser light.
  • ⁇ 31> The method for producing a sheet fusion product according to any one of ⁇ 20> to ⁇ 30>, wherein the sheet is a nonwoven fabric, a film, or a laminate sheet of a nonwoven fabric and a film.
  • ⁇ 32> ⁇ 31> The method for producing a sheet fusion body according to ⁇ 31>, wherein the nonwoven fabric is an air-through nonwoven fabric, a heat roll nonwoven fabric, a spunlace nonwoven fabric, a spunbond nonwoven fabric, or a meltblown nonwoven fabric.
  • a pants-type disposable diaper manufacturing method comprising an exterior body having a pair of side seal parts, ⁇ 20> thru
  • a sheet fusion body is produced that effectively prevents inconvenience such as ignition due to resin fume, has excellent sealing edge flexibility and touch, and has practically sufficient fusion strength. can do.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Toxicology (AREA)
  • Vascular Medicine (AREA)
  • Electromagnetism (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Botany (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

La présente invention concerne un appareil de production (20) qui est équipé d'une tête d'irradiation (312), d'un élément de support (21) pour soutenir une surface d'une feuille stratifiée (10) et d'un élément de maintien (26) pour presser la feuille stratifiée (21) vers l'élément de support (21) depuis l'autre côté de celle-ci. L'élément de support (21) a une ouverture en forme de fente (27) qui est allongée dans la direction transversale de la feuille stratifiée (10). À des emplacements adjacents à l'ouverture (27) sont situés des orifices de soufflage d'air pour souffler de l'air, et des orifices d'aspiration d'air (112a) pour aspirer de l'air depuis l'ouverture (27). La feuille stratifiée (10), lorsqu'elle est soutenue sur l'élément de support (21), est divisée en étant irradiée le long de l'ouverture (27) par une lumière laser (30) depuis le côté de l'élément de support (21), et les bords divisés sont fusionnés dans un état chevauchant, de manière à produire en continu des feuilles fusionnées multiples ayant des parties de bord scellées.
PCT/JP2014/066939 2013-06-28 2014-06-26 Appareil de production et procédé de production pour feuille fusionnée Ceased WO2014208650A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR112015032673A BR112015032673A2 (pt) 2013-06-28 2014-06-26 aparelho de produção e método de produção para folha fundida
CN201480037048.8A CN105358109B (zh) 2013-06-28 2014-06-26 片熔接体的制造装置和制造方法

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2013137389 2013-06-28
JP2013-137389 2013-06-28
JP2013-228017 2013-11-01
JP2013228017A JP6228814B2 (ja) 2013-06-28 2013-11-01 シート融着体の製造装置及び製造方法

Publications (1)

Publication Number Publication Date
WO2014208650A1 true WO2014208650A1 (fr) 2014-12-31

Family

ID=52141977

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/066939 Ceased WO2014208650A1 (fr) 2013-06-28 2014-06-26 Appareil de production et procédé de production pour feuille fusionnée

Country Status (4)

Country Link
JP (1) JP6228814B2 (fr)
CN (1) CN105358109B (fr)
BR (1) BR112015032673A2 (fr)
WO (1) WO2014208650A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111302109A (zh) * 2020-03-30 2020-06-19 广州市兴世机械制造有限公司 穿着物生产系统及布料处理装置
US10806635B2 (en) 2016-03-15 2020-10-20 The Procter & Gamble Company Methods and apparatuses for separating and positioning discrete articles
TWI733700B (zh) * 2015-10-08 2021-07-21 日商花王股份有限公司 褲型拋棄式尿布及其製造方法
DE102021207353A1 (de) 2021-07-12 2023-01-12 Körber Technologies Gmbh Vorrichtung zum Schneiden oder Perforieren einer Materialbahn für die Energiezellen produzierende Industrie
CN118082205A (zh) * 2024-04-25 2024-05-28 泉州市嘉华卫生用品有限公司 一种纸尿裤封合装置及其封合工艺
US12409080B2 (en) 2019-10-22 2025-09-09 Essity Hygiene And Health Aktiebolag Pant-type garment and method for the production thereof

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017070464A (ja) * 2015-10-06 2017-04-13 花王株式会社 シート融着体の製造装置及び製造方法
WO2021080475A1 (fr) * 2019-10-22 2021-04-29 Essity Hygiene And Health Aktiebolag Méthode pour couper et former simultanément des coutures latérales dans une bande précurseur de vêtements de type culotte interconnectés
IT202000016210A1 (it) * 2020-07-06 2022-01-06 Gdm Spa Dispositivo rotativo di saldatura e relativo metodo
JP7278251B2 (ja) 2020-12-02 2023-05-19 プライムプラネットエナジー＆ソリューションズ株式会社 レーザ加工装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04229233A (ja) * 1990-04-27 1992-08-18 Crosfield Electronics Ltd プラスチック材料の接着形成方法
JP2003117674A (ja) * 2001-10-15 2003-04-23 Denso Corp レーザ溶着装置
JP2007260875A (ja) * 2006-03-29 2007-10-11 Kao Corp シート切断方法及び装置
JP2009034256A (ja) * 2007-07-31 2009-02-19 Kao Corp シート接合装置及び吸収性物品の製造方法
JP2010505660A (ja) * 2006-10-04 2010-02-25 スリーエム イノベイティブ プロパティズ カンパニー 複数枚の高分子フィルムの溶融
JP2010188629A (ja) * 2009-02-18 2010-09-02 Kao Corp シート融着体の製造方法及びレーザー式接合装置
JP2010531759A (ja) * 2007-06-26 2010-09-30 ジーイー・ヘルスケア・バイオサイエンス・バイオプロセス・コーポレイション レーザ切断装置およびレーザ溶接装置
JP2011120745A (ja) * 2009-12-10 2011-06-23 Kao Corp 吸収性物品の製造方法
JP2012126130A (ja) * 2010-11-22 2012-07-05 Kao Corp シート融着体の製造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004142225A (ja) * 2002-10-23 2004-05-20 Terumo Corp シート材の融着方法および成形品
JP5250406B2 (ja) * 2008-12-03 2013-07-31 花王株式会社 シートの加工方法及び加工装置
JP5614964B2 (ja) * 2009-09-30 2014-10-29 ユニ・チャーム株式会社 積層型吸収性シート
EA025743B1 (ru) * 2010-09-30 2017-01-30 Као Корпорейшн Нетканый материал и впитывающее изделие, содержащее такой материал
JP2012111076A (ja) * 2010-11-22 2012-06-14 Kao Corp 積層シート

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04229233A (ja) * 1990-04-27 1992-08-18 Crosfield Electronics Ltd プラスチック材料の接着形成方法
JP2003117674A (ja) * 2001-10-15 2003-04-23 Denso Corp レーザ溶着装置
JP2007260875A (ja) * 2006-03-29 2007-10-11 Kao Corp シート切断方法及び装置
JP2010505660A (ja) * 2006-10-04 2010-02-25 スリーエム イノベイティブ プロパティズ カンパニー 複数枚の高分子フィルムの溶融
JP2010531759A (ja) * 2007-06-26 2010-09-30 ジーイー・ヘルスケア・バイオサイエンス・バイオプロセス・コーポレイション レーザ切断装置およびレーザ溶接装置
JP2009034256A (ja) * 2007-07-31 2009-02-19 Kao Corp シート接合装置及び吸収性物品の製造方法
JP2010188629A (ja) * 2009-02-18 2010-09-02 Kao Corp シート融着体の製造方法及びレーザー式接合装置
JP2011120745A (ja) * 2009-12-10 2011-06-23 Kao Corp 吸収性物品の製造方法
JP2012126130A (ja) * 2010-11-22 2012-07-05 Kao Corp シート融着体の製造方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI733700B (zh) * 2015-10-08 2021-07-21 日商花王股份有限公司 褲型拋棄式尿布及其製造方法
US10806635B2 (en) 2016-03-15 2020-10-20 The Procter & Gamble Company Methods and apparatuses for separating and positioning discrete articles
US12409080B2 (en) 2019-10-22 2025-09-09 Essity Hygiene And Health Aktiebolag Pant-type garment and method for the production thereof
CN111302109A (zh) * 2020-03-30 2020-06-19 广州市兴世机械制造有限公司 穿着物生产系统及布料处理装置
DE102021207353A1 (de) 2021-07-12 2023-01-12 Körber Technologies Gmbh Vorrichtung zum Schneiden oder Perforieren einer Materialbahn für die Energiezellen produzierende Industrie
CN118082205A (zh) * 2024-04-25 2024-05-28 泉州市嘉华卫生用品有限公司 一种纸尿裤封合装置及其封合工艺

Also Published As

Publication number Publication date
JP2015027779A (ja) 2015-02-12
CN105358109A (zh) 2016-02-24
CN105358109B (zh) 2018-12-11
BR112015032673A2 (pt) 2017-07-25
JP6228814B2 (ja) 2017-11-08

Similar Documents

Publication Publication Date Title
JP6228814B2 (ja) シート融着体の製造装置及び製造方法
JP5687732B2 (ja) シート融着体の製造装置及びシート融着体の製造方法
JP5368653B1 (ja) シート融着体の製造方法
CN104884015B (zh) 短裤型一次性尿布和其制造方法
TWI617298B (zh) 褲型穿著物品及其製造方法
JP5368646B1 (ja) シート融着体の製造方法及び製造装置
WO2013172343A1 (fr) Procédé de fabrication de feuilles fondues
TWI670167B (zh) 片材熔合體之製造裝置及製造方法、短褲型拋棄式尿布之製造裝置
JP5822278B2 (ja) 使い捨ておむつ
CN105682628A (zh) 短裤型穿着物品和其制造方法
JP6389113B2 (ja) シート融着体の製造方法及び製造装置
JP6247899B2 (ja) シート融着体の製造装置及び製造方法
JP6108618B2 (ja) パンツ型着用物品及びその製造方法
JP6095003B2 (ja) シート融着体の製造装置及び製造方法
CN111491782B (zh) 片熔接体的制造装置、片熔接体的制造方法
JP6247900B2 (ja) シート融着体の製造装置
WO2015064303A1 (fr) Procédé de production d'une feuille fusionnée et procédé de production d'un article absorbant
JP6420635B2 (ja) シート融着体の製造装置及び製造方法
JP2015008946A (ja) パンツ型着用物品及びその製造方法
JP2020078884A (ja) シート融着体の製造方法

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201480037048.8

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14817430

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112015032673

Country of ref document: BR

WWE Wipo information: entry into national phase

Ref document number: IDP00201600346

Country of ref document: ID

122 Ep: pct application non-entry in european phase

Ref document number: 14817430

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 112015032673

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20151228