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WO1998028134A1 - Laminage d'un film aere par utilisation d'un cylindre a embosse caoutchouteux - Google Patents

Laminage d'un film aere par utilisation d'un cylindre a embosse caoutchouteux Download PDF

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Publication number
WO1998028134A1
WO1998028134A1 PCT/US1997/023145 US9723145W WO9828134A1 WO 1998028134 A1 WO1998028134 A1 WO 1998028134A1 US 9723145 W US9723145 W US 9723145W WO 9828134 A1 WO9828134 A1 WO 9828134A1
Authority
WO
WIPO (PCT)
Prior art keywords
film
length
polymeric film
nonwoven web
rolls
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/US1997/023145
Other languages
English (en)
Inventor
Billy R. Jones, Jr.
Charles J. Morell
Kevin E. Smith
Alan E. Wright
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.)
Kimberly Clark Worldwide Inc
Kimberly Clark Corp
Original Assignee
Kimberly Clark Worldwide Inc
Kimberly Clark 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 Kimberly Clark Worldwide Inc, Kimberly Clark Corp filed Critical Kimberly Clark Worldwide Inc
Priority to AU78720/98A priority Critical patent/AU7872098A/en
Priority to CA002273965A priority patent/CA2273965A1/fr
Publication of WO1998028134A1 publication Critical patent/WO1998028134A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • A61F13/15699—Forming webs by bringing together several webs, e.g. by laminating or folding several webs, with or without additional treatment of the webs
    • 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
    • A61F13/51—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 outer layers of the pads
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51474—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure
    • A61F13/51478—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure being a laminate, e.g. multi-layered or with several layers
    • A61F13/5148—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure being a laminate, e.g. multi-layered or with several layers having an impervious inner layer and a cloth-like outer layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/0046—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by constructional aspects of the apparatus
    • B32B37/0053—Constructional details of laminating machines comprising rollers; Constructional features of the rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
    • B32B2305/20—Fibres of continuous length in the form of a non-woven mat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2555/00—Personal care
    • B32B2555/02—Diapers or napkins

Definitions

  • the present invention relates to a process for laminating breathable film using an anvil roll covered with a soft material.
  • the invention further concerns the product produced thereby.
  • the present invention relates to a breathable film/nonwoven laminate having improved toughness (elongation) and greater retention of barrier properties.
  • the present invention also relates to the process of producing the same using an anvil roll covered with a soft material.
  • Laminate materials have a wide variety of uses, especially in the areas of absorbent articles and disposable items.
  • the term "absorbent articles” refers to devices which absorb and contain body exudates and, more specifically, refers to devices that are placed against or in proximity to the body of the wearer to absorb and contain the various exudates discharged from the body.
  • the term "absorbent articles” is intended to include diapers, training pants, incontinence devices and the like.
  • dispenser is used herein to describe absorbent articles not intended to be laundered or otherwise restored or reused as an absorbent article.
  • Film/nonwoven laminates may be produced using thermal point bonding.
  • thermal point bonding entails passing the webs that are to be bonded together through the nip of two steel rolls.
  • one of the steel rolls is engraved, or embossed, with a pattern. This roll is known as the "pattern roll.”
  • the non-engraved roll is known as the “anvil roll.”
  • the pattern on the pattern roll is imparted to the laminated web.
  • Use of steel anvil rolls tends to result in severe deformation of the nonwoven fibers, resulting in a weak laminate.
  • the lamination process of the present invention requires a pattern roll, an energy source and an anvil roll that is covered with a soft material that deforms under nip pressure but that also has adequate operational life.
  • Laminate materials produced according to the present invention may be used in personal care absorbent articles and in surgical gowns and drapes and other forms of protective apparel such as lab coats and workwear. Film/nonwoven laminates produced according to the present invention are especially useful in the outer coverings of personal care absorbent articles, particularly diapers.
  • FIG. 1 is a fragmentary perspective view of a film/nonwoven laminate constructed in accordance with the present invention.
  • FIG. 2 is a schematic side view of the lamination process of the present invention.
  • FIG. 3 is a partially cut-away top view of an exemplary disposable garment which may utilize the laminate produced according to he present invention.
  • the present invention is directed to lamination of breathable film and nonwoven webs using an anvil roll covered with a soft material.
  • FIG. 1 of the drawings there is illustrated a film/nonwoven laminate 10 produced according to the present invention.
  • the laminate 10 includes a fibrous nonwoven web 12 and a polymeric film 14 bonded thereto.
  • the fibrous nonwoven web 12 may be, for example, necked polypropylene spunbond, crimped polypropylene spunbond, bonded carded webs, elastomeric spunbond or meltblown fabrics produced from elastomeric resins. Fibrous nonwoven webs can impart additional properties such as a softer, more cloth-like feel to polymeric film. A more cloth-like feel is particularly advantageous when the film is being used as a barrier layer in, for example, outer covers for personal care absorbent articles, surgical gowns and drapes, lab coats and other forms of protective apparel.
  • Such webs may be formed from a number of processes including, but not limited to, spunbonding and meltblowing processes.
  • Meltblown fibers are fibers formed by extruding a molten thermoplastic material through a plurality of fine, usually circular, capillaries of a meltblowing die as molten threads or filaments into converging high-velocity, usually hot, gas (e.g., air) streams which are flowing in the same direction as the extruded filaments or threads of the molten thermoplastic material so that the extruded filaments or threads are attenuated, i.e., drawn or extended, to reduce their diameter.
  • gas e.g., air
  • the threads or filaments may be attenuated to microfiber diameter which means the threads or filaments have an average diameter not greater than about 75 microns, generally from about 0.5 microns to about 50 microns, and more particularly from about 2 microns to about 40 microns.
  • the meltblown fibers are carried by the high-velocity gas stream and are deposited on a collecting surface to form a web of randomly disbursed meltblown fibers.
  • the meltblown process is well-known and is described in various patents and publications, including NRL Report 4364, "Manufacture of Super-Fine Organic Fibers" by B.A. endt, E.L. Boone and D.D.
  • meltblown fibers are microfibers which may be continuous or discontinuous, are generally smaller than 10 microns in average diameter and are generally tacky when deposited onto a collecting surface.
  • the fibrous nonwoven web is polypropylene spunbond.
  • Spunbonded fibers are small diameter fibers that are formed by extruding a molten thermoplastic material as filaments from a plurality of fine, usually circular, capillaries of a spinneret with the diameter of the extruded filaments then being rapidly reduced as by, for example, non- eductive or eductive fluid-drawing or other well-known spunbonding mechanisms.
  • the production of spunbonded nonwoven webs is illustrated in patents such as, for example, U.S. Patent No. 4,340,563 to Appel et al . ; U.S. Patent No. 3,802,817 to Matsuki et al . ; U.S. Patent No.
  • Spunbonded fibers generally are not tacky when deposited onto a collecting surface. Spunbonded fibers generally are continuous and have average diameters (from a sample of at least 10) larger than 7 microns and, more particularly, from about 10 microns to about 20 microns.
  • thermoplastic films include, but are not limited to, polypropylene and/or polyethylene-based polyolefins in mono- or coex-execututions .
  • Polypropylene films are preferred for lamination to polypropylene spunbond.
  • polymeric film 14 is formed from an extrusion film apparatus 20 such as a cast or blown unit.
  • the apparatus 20 includes an extruder 22.
  • the polymeric material is prepared in a mixer 24 and directed to the extruder 22.
  • the film 14 is extruded into a pair of nip rollers 26, 28 one of which may be patterned so as to impart an embossed pattern to the newly formed film 14.
  • film 14 is directed ro a film stretching unit 30 such as a machine direction orienter which is commercially available from vendors such as The Marshall and Williams Company of Buffalo, Rhode Island.
  • a film stretching unit 30 such as a machine direction orienter which is commercially available from vendors such as The Marshall and Williams Company of Buffalo, Rhode Island.
  • Such an apparatus 30 has a plurality of stretching rollers 32 that move at progressively faster speeds relative to the pair disposed before it. These rollers 32 apply an amount of stress and thereby progressively stretch film 14 to a second length in the machine direction of the film, which is the direction of travel of film 14 through the process as shown in FIG. 2.
  • the stretch rollers 32 may be heated for better processing.
  • Film stretching unit 30 may also include rollers ;not shown) upstream and/or downstream from the stretch rollers 32 that can be used to preheat the film 14 before orienting it and/or to cool the film 14 after stretching it.
  • the second, or stretched, length is from about two to about six times, more preferably from about three times to about four times, the original length of the film 14 prior to stretching.
  • Film 14 is then directed out of stretching unit 30 so that the stress is removed and the film 14 is allowed to relax.
  • a permanent elongation length of from about 1.5 times the original length is retained after the stretched film is allowed to relax.
  • Lamination reinforces and protects the film.
  • the film 14 is attached to the nonwoven web 12 to form a laminate 10.
  • a conventional fibrous nonwoven web-forming apparatus 40 such as a pair of spunbond machines, is used to form the fibrous nonwoven web 12.
  • the long, essentially continuous fibers 42 are deposited onto a forming wire 44 as an unbonded web 46.
  • the unbonded web 46 is then sent through a pair of bonding rolls 48, 50 to bond the fibers together and increase the tear strength of the resultant web 12.
  • One or both of the rolls 48, 50 are often heated to aid bonding.
  • one of the rolls 48, 50 is also patterned so as to impart a discrete bond pattern with a prescribed bond surface area to the web 12.
  • the other roll is usually a smooth anvil roll, but this roll also may be patterned if desired.
  • thermal point bonding involves passing the film 14 and the fibrous nonwoven web 12 through the nip formed between a pair of rolls 52, 54.
  • bonding rolls 48, 50 at least one of the laminating rolls is patterned to create a discrete bond pattern upon the resultant laminate 10.
  • bonding rolls 48, 50 may be omitted or used for light compaction and the laminating nip between rolls 52, 54 may serve to simultaneously bond the nonwoven web 12, as well as form the laminate 10.
  • the maximum bond point surface area for a given area of surface on one side of the laminate 10 will not exceed about 50% of the total surface area. Any of a number of discrete bond patterns may be used. Examples are disclosed in U.S. Patent No. 4,041,203 to Brock et al . , which is incorporated herein by reference.
  • the pattern roll 52 is a metal roll, preferably steel.
  • the film is oriented against the non- engraved roll 54, which is also known as the anvil roll. Such orientation assists force distribution and prevents damage to the film during the bonding process.
  • the anvil roll 54 is also made of metal, again preferably steel.
  • the anvil roll 54 is covered with a soft material that deforms under nip pressure but that also has an adequate operational life.
  • the soft material generally has a surface roughness (R a ) of about 5 to about 250. Surface roughness is measured with a surface roughness tester such as, for example, the Surftest 211 produced by MTI Corporation.
  • the soft material must be softer and more conformable than steel, such as rubber. Rubber-containing compounds may also be useful such as, for example, a silicone rubber compound with a Shore-A hardness of about 80-95.
  • a sleeve slides over the metal anvil roll 54 to provide the soft, conformable surface.
  • the sleeve deforms under the nip pressure of lamination thereby creating a larger area over which a constant nipping force is distributed. This, in turn, results in a lower pressure required for lamination.
  • the pressure used during lamination according to the present invention is from about 170 to about 230 psi, depending on the relative softness of the sleeve covering the anvil roll 54.
  • the lower pressure while enough to laminate the incoming film 14 and nonwoven web 12, eliminates the severe deformation of the nonwoven web 12 that generally occurs during lamination.
  • the resulting laminate 10 also shows improved tensile properties and laminate elongation, thus indicating a tougher laminate material .
  • the energy source used to assist lamination is infrared heaters.
  • Other sources, such as a hot air knife, may also be used.
  • the temperature on the pattern roll 52 is between about 230 °F and about 260 °F.
  • the anvil roll 54 picks up heat and runs at about 150 °F during steady state processing.
  • the laminate 10 may be wound up into a roll 58 for subsequent processing. Alternatively, the laminate 10 may continue in line for further processing or conversion.
  • the process shown in FIG. 2 may also be used to create a three layer laminate.
  • the only modification to the previously described process is to feed a supply 60 of a second fibrous nonwoven web 12a into the pattern roll 52 and the anvil roll 54 on the side of the film 14 opposite that of the other nonwoven web 12.
  • One or both of the nonwoven webs 12 and 12a may be formed directly in line, as illustrated with nonwoven web 12 in FIG. 2.
  • one or both of the nonwoven webs 12 and 12a may be in the form of a pre-formed roll 62 as illustrated in FIG. 2 by nonwoven web 12a.
  • the second nonwoven web 12a is fed between the nip of the pattern roll 52 and the anvil roll 54 and is laminated to film 14 in the same manner as the first fibrous nonwoven web 12.
  • the laminate 10 produced according to the present invention may be used in a wide variety of applications including personal care absorbent articles such as diapers, training pants, incontinence garments, surgical gowns and drapes and protective apparel such as lab coats and other workwear.
  • a disposable garment 70 in this case a diaper, is shown in FIG. 3. Although a diaper is shown in FIG. 3, it will be understood that use of the laminate 10 produced according to the present invention is not limited to such articles and may also be used in a wide variety of applications.
  • the disposable garment 70 includes a liquid permeable top sheet or liner 72, a back sheet or outer cover 74 and an absorbent core 76 disposed between and contained by the liner 72 and the outer cover 74.
  • Disposable garment 70 may also include some type of fastening means 78 such as adhesive fastening tapes or mechanical hook and loop type fasteners and stretch region 80.
  • Laminate 10 may be used to form various portions of disposable garment 70 including, but not limited to, liner 72, outer cover 74 and stretch region 80. Preferably, laminate 10 is used to form the outer cover 74 of disposable garment 70.
  • Two sets of film/spunbond laminates were produced using rubber and steel anvil rolls.
  • the laminates bonded with the rubber anvil roll displayed greater elongation compared to the laminates bonded with the steel anvil roll.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Vascular Medicine (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dermatology (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne un procédé de production d'un stratifié amélioré de film/non tissé, fabriqué à partir d'une bande fibreuse non tissée et d'un film polymère dans lequel ladite bande non tissée et ledit film polymère. Selon ce procédé, on lie l'un à l'autre cette bande non tissée et ce film polymère en les faisant passer à travers l'écartement entre deux cylindres. Un de ces cylindres est en contact avec le film polymère, et présente une surface fabriquée dans un matériau souple qui se déforme sous la pression exercée par les cylindres.
PCT/US1997/023145 1996-12-20 1997-12-11 Laminage d'un film aere par utilisation d'un cylindre a embosse caoutchouteux Ceased WO1998028134A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU78720/98A AU7872098A (en) 1996-12-20 1997-12-11 Lamination of breathable film using a rubber-covered anvil roll
CA002273965A CA2273965A1 (fr) 1996-12-20 1997-12-11 Laminage d'un film aere par utilisation d'un cylindre a embosse caoutchouteux

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US77085796A 1996-12-20 1996-12-20
US08/770,857 1996-12-20
US83767697A 1997-04-22 1997-04-22
US08/837,676 1997-04-22

Publications (1)

Publication Number Publication Date
WO1998028134A1 true WO1998028134A1 (fr) 1998-07-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/023145 Ceased WO1998028134A1 (fr) 1996-12-20 1997-12-11 Laminage d'un film aere par utilisation d'un cylindre a embosse caoutchouteux

Country Status (3)

Country Link
AU (1) AU7872098A (fr)
CA (1) CA2273965A1 (fr)
WO (1) WO1998028134A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6165298A (en) * 1999-04-30 2000-12-26 Kimberly-Clark Worldwide, Inc. Patterned anvil-roll
US6368444B1 (en) 1998-11-17 2002-04-09 Kimberly-Clark Worldwide, Inc. Apparatus and method for cross-directional stretching of polymeric film and other nonwoven sheet material and materials produced therefrom
US6383431B1 (en) 1997-04-04 2002-05-07 The Procter & Gamble Company Method of modifying a nonwoven fibrous web for use as component of a disposable absorbent article
WO2003032879A3 (fr) * 2001-10-09 2003-07-24 Microtac Systems Ag Procede de production d'articles d'hygiene
US6706942B1 (en) 2003-05-08 2004-03-16 The Procter & Gamble Company Molded or extruded articles comprising polyhydroxyalkanoate copolymer compositions having short annealing cycle times
US6808795B2 (en) 2001-03-27 2004-10-26 The Procter & Gamble Company Polyhydroxyalkanoate copolymer and polylactic acid polymer compositions for laminates and films
US7098292B2 (en) 2003-05-08 2006-08-29 The Procter & Gamble Company Molded or extruded articles comprising polyhydroxyalkanoate copolymer and an environmentally degradable thermoplastic polymer
EP1516606A4 (fr) * 2002-05-23 2012-04-25 Uni Charm Corp Article vestimentaire jetable
WO2017112601A1 (fr) * 2015-12-21 2017-06-29 3M Innovative Properties Company Procédé de fabrication d'un stratifié avec une couche thermoplastique étirée

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5089075A (en) * 1989-04-28 1992-02-18 Tosoh Corporation Production of breathing composite sheet
US5382461A (en) * 1993-03-12 1995-01-17 Clopay Plastic Products Company, Inc. Extrusion laminate of incrementally stretched nonwoven fibrous web and thermoplastic film and method
EP0691203A1 (fr) * 1994-06-06 1996-01-10 Kimberly-Clark Corporation Film étiré et stratifié non tissé et procédé de fabrication
US5569232A (en) * 1994-02-28 1996-10-29 The Procter And Gamble Company Absorbent article with multiple zone structural elastic-like film web extensible waist feature

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5089075A (en) * 1989-04-28 1992-02-18 Tosoh Corporation Production of breathing composite sheet
US5382461A (en) * 1993-03-12 1995-01-17 Clopay Plastic Products Company, Inc. Extrusion laminate of incrementally stretched nonwoven fibrous web and thermoplastic film and method
US5382461B1 (en) * 1993-03-12 1998-11-03 Clopay Plastic Prod Co Extrusion laminate of incrementally stretched nonwoven fibrous web and thermoplastic film and method
US5569232A (en) * 1994-02-28 1996-10-29 The Procter And Gamble Company Absorbent article with multiple zone structural elastic-like film web extensible waist feature
EP0691203A1 (fr) * 1994-06-06 1996-01-10 Kimberly-Clark Corporation Film étiré et stratifié non tissé et procédé de fabrication

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6383431B1 (en) 1997-04-04 2002-05-07 The Procter & Gamble Company Method of modifying a nonwoven fibrous web for use as component of a disposable absorbent article
US6368444B1 (en) 1998-11-17 2002-04-09 Kimberly-Clark Worldwide, Inc. Apparatus and method for cross-directional stretching of polymeric film and other nonwoven sheet material and materials produced therefrom
US6165298A (en) * 1999-04-30 2000-12-26 Kimberly-Clark Worldwide, Inc. Patterned anvil-roll
US6808795B2 (en) 2001-03-27 2004-10-26 The Procter & Gamble Company Polyhydroxyalkanoate copolymer and polylactic acid polymer compositions for laminates and films
AU2002349275B2 (en) * 2001-10-09 2006-06-08 Microtac Systems Ag Method for producing hygiene articles
WO2003032879A3 (fr) * 2001-10-09 2003-07-24 Microtac Systems Ag Procede de production d'articles d'hygiene
EP1516606A4 (fr) * 2002-05-23 2012-04-25 Uni Charm Corp Article vestimentaire jetable
US6706942B1 (en) 2003-05-08 2004-03-16 The Procter & Gamble Company Molded or extruded articles comprising polyhydroxyalkanoate copolymer compositions having short annealing cycle times
US7098292B2 (en) 2003-05-08 2006-08-29 The Procter & Gamble Company Molded or extruded articles comprising polyhydroxyalkanoate copolymer and an environmentally degradable thermoplastic polymer
WO2017112601A1 (fr) * 2015-12-21 2017-06-29 3M Innovative Properties Company Procédé de fabrication d'un stratifié avec une couche thermoplastique étirée
CN108463348A (zh) * 2015-12-21 2018-08-28 3M创新有限公司 用拉伸的热塑性层制作层压物的方法
JP2019506318A (ja) * 2015-12-21 2019-03-07 スリーエム イノベイティブ プロパティズ カンパニー 延伸した熱可塑性層を有する積層体を製造する方法
US10967624B2 (en) 2015-12-21 2021-04-06 3M Innovative Properties Company Fastening articles and methods of making the same
US11020949B2 (en) 2015-12-21 2021-06-01 3M Innovative Properties Company Method of making a laminate with a stretched thermoplastic layer
TWI751128B (zh) * 2015-12-21 2022-01-01 美商3M新設資產公司 製作具有經拉伸熱塑性層之層壓體的方法

Also Published As

Publication number Publication date
CA2273965A1 (fr) 1998-07-02
AU7872098A (en) 1998-07-17

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