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WO2023189769A1 - Outil de montage et corps de sac équipé d'un outil de montage - Google Patents

Outil de montage et corps de sac équipé d'un outil de montage Download PDF

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Publication number
WO2023189769A1
WO2023189769A1 PCT/JP2023/010740 JP2023010740W WO2023189769A1 WO 2023189769 A1 WO2023189769 A1 WO 2023189769A1 JP 2023010740 W JP2023010740 W JP 2023010740W WO 2023189769 A1 WO2023189769 A1 WO 2023189769A1
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Prior art keywords
fitting
layer
fitting tool
less
base material
Prior art date
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Ceased
Application number
PCT/JP2023/010740
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English (en)
Japanese (ja)
Inventor
直斗 田上
新 ▲高▼川
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CI Takiron Corp
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CI Takiron Corp
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Filing date
Publication date
Application filed by CI Takiron Corp filed Critical CI Takiron Corp
Publication of WO2023189769A1 publication Critical patent/WO2023189769A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/10—Slide fasteners with a one-piece interlocking member on each stringer tape
    • A44B19/16—Interlocking member having uniform section throughout the length of the stringer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners

Definitions

  • the present invention relates to a fitting and a bag with a fitting.
  • This application claims priority based on Japanese Patent Application No. 2022-058280 filed in Japan on March 31, 2022, the contents of which are incorporated herein.
  • Patent Document 1 discloses a fitting using a random copolymer containing propylene and an ⁇ -olefin having 4 or more carbon atoms. According to the fitting part disclosed in Patent Document 1, when used in a bag made of PP film, relatively good flexibility and the effect of lowering the welding temperature can be obtained.
  • a fitting tool that exhibits good moldability requires hardness, so a resin with a high melting point is used.
  • the sealing temperature is relatively high at 180° C. or higher, and when the fitting tool is thermally welded to the bag body, the bag body undergoes heat shrinkage, causing wrinkles in appearance.
  • a resin having a low melting point is simply used for the fitting, the fitting itself may undergo thermal contraction, and the fitting may be easily deformed.
  • the actual situation is that physical property values that serve as a guideline when blending a plurality of resins are desired.
  • An object of the present invention is to provide a fitting that has good moldability and is unlikely to shrink or deform due to heat, and a bag with a fitting that uses the fitting.
  • a male side fitting member is provided with a male side fitting part along the longitudinal direction on the surface of the band-shaped first base material, and a female side fitting part is provided on the surface of the band-shaped second base material along the longitudinal direction.
  • a fitting tool comprising a female side fitting member provided with a mating portion, the male side fitting portion and the female side fitting portion removably fitting together,
  • a fitting tool whose results of thermal contraction stress measurement using a thermomechanical analyzer (TMA device) satisfy the following (1) to (3).
  • the temperature T A at the stress increase starting point (A) is 70°C or more and 140°C or less.
  • the load L B at the maximum stress point (B) is 1 mN or more and 200 mN or less.
  • the numerical value of the slope between (A) and (B) is 0.1 or more and 10 or less.
  • the load L B at the maximum stress point (B) is 1 mN or more and 20 mN or less
  • the first base material and the second base material each include a main layer and a seal layer provided on the opposite side of the main layer from the male side fitting part and the female side fitting part.
  • the fitting tool according to [1] or [2], comprising: [4] The fitting tool according to [3], wherein the first base material and the second base material each include an intermediate layer provided between the main layer and the seal layer. [5] Comprising the fitting tool according to any one of [1] to [4] and a bag body that accommodates the contents, A bag body with a fitting tool, wherein the fitting tool is attached to an inner surface of the bag main body.
  • the present invention it is possible to provide a fitting that has good moldability and is unlikely to shrink or deform due to heat, and a bag with a fitting that uses the fitting.
  • FIG. 1 is a schematic perspective view showing a fitting tool of this embodiment.
  • FIG. 2 is a sectional view taken along line II-II in FIG.
  • FIG. 3 is a diagram showing an example of the results of heat shrinkage stress measurement using a TMA device in the fitting tool of this embodiment.
  • FIG. 4 is a schematic front view showing the bag body 100 with a fitting device of this embodiment.
  • FIG. 5 is a schematic perspective view showing the bag 100 opened.
  • a fitting tool 1 includes a male side fitting in which a male side fitting part 12 is provided along the longitudinal direction on a surface 11a of a strip-shaped first base material 11. It includes a mating member 10 and a female side fitting member 20 in which a female side fitting portion 22 is provided on the surface 21a of a band-shaped second base material 21 along the longitudinal direction.
  • the male side fitting part 12 of the example shown in FIGS. 1 and 2 is provided at a trunk 12a rising from the surface 11a of the first base 11 that faces the second base 21, and at the tip of the trunk 12a. , and a head portion 12b having a generally semicircular cross section larger than the trunk portion 12a.
  • the female side fitting portion 22 includes a pair of arm portions 22a, 22b rising up from the surface 21a of the second base material 21, which is the surface facing the first base material 11, and having an arcuate cross section. A recess 22c is formed inside.
  • the male side fitting part 12 and the female side fitting part 22 are removably fitted together by fitting the head 12b of the male side fitting part 12 into the recess 22c of the female side fitting part 22.
  • the aspect of the male side fitting part 12 and the female side fitting part 22 should just fit detachably, and is not limited to the aspect of FIG.1 and FIG.2.
  • the first base material 11 includes a main layer 13, a seal layer 14 provided on the side opposite to the male side fitting part 12 and the female side fitting part 22 of the main layer 13, and the main layer 13.
  • An intermediate layer 15 provided between the layer 13 and the seal layer 14 is provided.
  • the material forming the main layer 13 is not particularly limited, and materials used for the base materials of known fittings can be used.
  • Examples include polyethylene, polypropylene (PP), ethylene-vinyl acetate copolymer, ethylene-methacrylic acid copolymer, polyester resin, and polyamide resin.
  • Examples of polyethylene include low density polyethylene (LDPE), linear low density polyethylene (LLDPE), high density polyethylene (HDPE), and ethylene- ⁇ olefin copolymer.
  • Examples of the polyester resin include polyethylene terephthalate and polyethylene naphthalate.
  • Examples of the polyamide resin include nylon and the like.
  • polyolefin resins such as polyethylene and polypropylene are preferable from the viewpoint of a balance between rigidity and flexibility, and it is particularly preferable to contain at least one of LDPE and LLDPE.
  • LDPE low density polyethylene
  • LLDPE low density polyethylene
  • the material forming the seal layer 14 is not particularly limited, and examples thereof include LLDPE, unstretched polypropylene, ethylene-vinyl acetate copolymer, ionomer, and polyester resin. Among these, LLDPE is preferred in terms of flexibility and low-temperature sealability. As the material for forming the seal layer, one type may be used alone, or two or more types may be used in combination.
  • the material for forming the intermediate layer 15 is not particularly limited, and materials used for the base materials of known fittings can be used.
  • Examples include polyethylene, polypropylene (PP), ethylene-vinyl acetate copolymer, ethylene-methacrylic acid copolymer, polyester resin, and polyamide resin.
  • Examples of polyethylene include low density polyethylene (LDPE), linear low density polyethylene (LLDPE), high density polyethylene (HDPE), and ethylene- ⁇ olefin copolymer.
  • Examples of the polyester resin include polyethylene terephthalate and polyethylene naphthalate.
  • Examples of the polyamide resin include nylon and the like. Among these, polypropylene (PP) and a resin having a density of 930 kg/m 3 or more are preferred, and high-density polyethylene (HDPE) is particularly preferred, since the fitting has sufficient rigidity.
  • the main layer 13, the seal layer 14, and the intermediate layer 15 may contain known additives such as stabilizers, antioxidants, lubricants, antistatic agents, colorants, and molding aids, if necessary.
  • the width W1 of the first base material 11 is preferably 2 mm or more, more preferably 3 mm or more, since sufficient sealing strength can be easily obtained when heat-welded to the bag body.
  • the width W1 of the first base material 11 is preferably 60 mm or less, more preferably 40 mm or less, because it has excellent flexibility, is easy to handle, and the fitting tool is difficult to deform during distribution and storage.
  • the lower limit and upper limit of the width W1 of the first base material 11 can be arbitrarily combined, and are preferably 3 mm or more and 40 mm or less, for example.
  • the thickness of the first base material 11 is preferably 0.1 mm or more, and more preferably 0.12 mm or more, since sufficient sealing strength can easily be obtained when heat-welded to the bag body.
  • the thickness of the first base material 11 is preferably 0.4 mm or less, more preferably 0.3 mm or less, since it has excellent flexibility and is easy to handle.
  • the lower and upper limits of the thickness of the first base material 11 can be arbitrarily combined, and are preferably 0.1 mm or more and 0.4 mm or less, for example.
  • the thickness of the main layer 13 is preferably 0.01 mm or more, more preferably 0.03 mm or more, in order to have sufficient rigidity.
  • the thickness of the main layer 13 is preferably 0.4 mm or less, more preferably 0.3 mm or less, since it has excellent flexibility and is easy to handle.
  • the lower and upper limits of the thickness of the main layer 13 can be arbitrarily combined, and are preferably 0.01 mm or more and 0.4 mm or less, for example.
  • the thickness of the sealing layer 14 is preferably 0.01 mm or more, more preferably 0.02 mm or more, since sufficient sealing strength can easily be obtained when heat-welded to the bag body.
  • the thickness of the seal layer 14 is preferably 0.2 mm or less, more preferably 0.1 mm or less, since it has excellent flexibility and is easy to handle.
  • the lower and upper limits of the thickness of the seal layer 14 can be arbitrarily combined, and are preferably, for example, 0.02 mm or more and 0.1 mm or less.
  • the thickness of the intermediate layer 15 is preferably 0.02 mm or more, more preferably 0.05 mm or more, in order to have sufficient rigidity.
  • the thickness of the intermediate layer 15 is preferably 0.3 mm or less, more preferably 0.2 mm or less, in order to have good point sealing properties.
  • "having point sealing properties” means a property that suppresses the formation of pinholes in the crushed part during the point sealing process in which the fitting tool is crushed when forming the side seal part of the body.
  • the lower and upper limits of the thickness of the intermediate layer 15 can be arbitrarily combined, and are preferably 0.05 mm or more and 0.2 mm or less, for example.
  • the second base material 21 has the same configuration as the first base material 11, and includes a main layer 23 and a seal provided on the opposite side of the main layer 23 from the male side fitting part 12 and the female side fitting part 22. It includes a layer 24 and an intermediate layer 25 provided between the main layer 23 and the seal layer 24.
  • the materials forming the main layer 23, the seal layer 24, and the intermediate layer 25 are not particularly limited, and the same materials as those exemplified as the materials forming the main layer 13, the seal layer 14, and the intermediate layer 15 can be exemplified, and are preferred.
  • the aspect is also the same.
  • the main layer 23, the seal layer 24, and the intermediate layer 25 may contain known additives such as stabilizers, antioxidants, lubricants, antistatic agents, colorants, and molding aids, if necessary.
  • the materials forming the main layer 13, the seal layer 14, and the intermediate layer 15 and the materials forming the main layer 23, the seal layer 24, and the intermediate layer 25 may be the same or different.
  • the preferred width W2 of the second base material 21 is the same as the preferred width W1 of the first base material 11.
  • the width W1 of the first base material 11 and the width W2 of the second base material 21 may be the same or different.
  • the preferred thicknesses of the second base material 21, the main layer 23, the seal layer 24, and the intermediate layer 25 are the same as the preferred thicknesses of the first base material 11, the main layer 13, the seal layer 14, and the intermediate layer 15.
  • the thickness of the first base material 11, the main layer 13, the seal layer 14, and the intermediate layer 15 may be the same as the thickness of the second base material 21, the main layer 23, the seal layer 24, and the intermediate layer 25, respectively. , may be different.
  • the mass proportions of the main layer, seal layer, and intermediate layer in the entire fitting tool are 10% by mass or more and 95% by mass or less for the main layer, 5% by mass or more and 30% by mass or less for the seal layer, and 60% by mass or less for the intermediate layer. It is preferable that the main layer is 50% by mass or more and 93% by mass or less, the seal layer is 8% by mass or more and 20% by mass or less, and the intermediate layer is 10% by mass or more and 45% by mass or less.
  • the mass percentages of the main layer, seal layer, and intermediate layer mentioned above mean the mass percentage of the resin contained in each layer, and the total mass percentage of the main layer, seal layer, and intermediate layer is 100% by mass. If the mass ratio of the main layer, seal layer, and intermediate layer is within the above range, it will have good moldability and will easily suppress shrinkage and deformation due to heat.
  • the fitting tool 1 satisfies the following (1) to (3) as a result of thermal contraction stress measurement using a thermomechanical analyzer (TMA device).
  • TMA device thermomechanical analyzer
  • the X axis shows temperature (° C.)
  • the first Y axis shows thermomechanical analysis value ( ⁇ m)
  • the second Y axis shows load (mN).
  • the temperature T A at the stress increase starting point (A) is 70°C or more and 140°C or less.
  • the load L B at the maximum stress point (B) is 1 mN or more and 200 mN or less.
  • the numerical value of the slope between (A) and (B) is 0.1 or more and 10 or less.
  • TMA device The TMA device used for measurement is not particularly limited, and commercially available devices can be used.
  • a commercially available TMA device for example, a TMA device manufactured by Hitachi High-Tech Science (product name: TMA/SS 7100) can be mentioned.
  • sample The sample used for heat shrinkage stress measurement using a TMA device is obtained by cutting the first base material, which is a band-shaped base that does not include the first fitting part of the fitting tool, with the direction along the fitting part as the longitudinal direction, and Length: 30 mm, width: 4 mm, thickness: 0.15 mm, and the sample length when set in the jig was 20 mm.
  • the stress increase starting point (A) is the intersection of the extrapolated lines (extension lines of straight line portions) on the high temperature side and low temperature side of the TMA curve.
  • the temperature T A at the stress increase starting point (A) is the temperature (° C.) at the above-mentioned intersection.
  • the temperature T A at the stress increase starting point (A) is 70°C or higher, preferably 100°C or higher, and more preferably 115°C or higher.
  • the temperature T A at the stress increase starting point (A) is 140°C or lower, preferably 138°C or lower, and more preferably 135°C or lower.
  • the temperature T A at the stress increase starting point (A) is 140° C. or lower, flexibility is excellent, and the tightness and point sealability of the fitting portion are excellent.
  • the first base material and the second base material are single layers, heat sealing at a low temperature is possible.
  • the lower and upper limits of the temperature T A at the stress increase starting point (A) can be arbitrarily combined, and are preferably, for example, 70°C or more and 140°C or less, and more preferably 100°C or more and 135°C or less.
  • the maximum stress point (B) is the maximum value of the TMA curve, as shown in FIG. Further, the load L B at the maximum stress point (B) is the load (mN) at the maximum value.
  • the load L B at the maximum stress point (B) is 1 mN or more, preferably 1.2 mN or more, and more preferably 1.3 mN or more.
  • the load L B at the maximum stress point (B) is 200 mN or less, preferably 130 mN or less, and more preferably 20 mN or less.
  • the lower and upper limits of the load L B at the maximum stress point (B) can be arbitrarily combined, and are preferably 1 mN or more and 200 mN or less, and more preferably 1 mN or more and 20 mN or less.
  • the slope between the intersection (A) and the maximum value (B) is 0.1 or more, preferably 0.8 or more, and more preferably 1.2 or more.
  • the numerical value of the above-mentioned slope is 0.1 or more, flexibility is excellent, and the tightness and point sealability of the fitting portion are excellent.
  • the slope between the intersection (A) and the maximum value (B) is 10 or less, preferably 8 or less, and more preferably 5 or less.
  • the value of the slope is 10 or less, heat resistance is good and shrinkage and deformation due to heat are less likely to occur. In addition, wrinkles are less likely to occur in the appearance during bag making.
  • the lower and upper limits of the slope between the intersection (A) and the maximum value (B) can be arbitrarily combined, and are preferably 0.1 or more and 10 or less, and more preferably 0.8 or more and 5 or less.
  • the temperature T A at the stress increase starting point (A) can be increased by using a resin with a high melting point, adjusting the composition ratio with other resins, and adjusting the thickness of the layer.
  • a resin with a low melting point By using a resin with a low melting point, adjusting the composition ratio with other resins, and adjusting the thickness of the layer, it is possible to reduce the temperature T A at the stress increase starting point (A).
  • the load LB is greatly influenced by the type of resin. Therefore, by adjusting the thickness, resin type, and resin composition ratio, the load L B at the maximum stress point (B) can be adjusted.
  • the fitting tool 1 by using a resin with a high melting point and high rigidity, adjusting the composition ratio with other resins, and adjusting the thickness of the layer, the distance between the intersection point (A) and the maximum value (B) can be increased. The slope of can be reduced.
  • a resin with a low melting point and low rigidity adjusting the composition ratio with other resins, and making the layer thicker, the slope between the above-mentioned intersection point (A) and the above-mentioned maximum value (B) is increased. can be done.
  • the method for manufacturing the fitting tool 1 is not particularly limited, and any known method can be used.
  • resin materials for forming a main layer, a seal layer, and an intermediate layer are prepared by melt-kneading, etc., and a male side fitting member or a female side fitting member with a multilayer structure having an intermediate layer in a specific area is formed.
  • An example is a method of coextrusion using an extruder equipped with a composite profile die for the purpose of coextrusion.
  • Examples of the method for mixing the materials include dry mixing using a super mixer, a Henschel mixer, or the like.
  • Examples of the melt-kneading method include a method in which raw materials are supplied to a melt-kneader such as a single-screw extruder, a twin-screw extruder, a Banbury mixer, a kneader, and a mixing roll, and then melt-kneaded.
  • Examples of the molding method include extrusion molding, injection molding, inflation molding, and vacuum molding.
  • the bag body with a fitting tool of the present invention is a bag body with a fitting tool provided with the fitting tool of the present invention.
  • the bag body with a fitting according to the present invention can adopt any known embodiment except that it includes the fitting according to the present invention.
  • a bag with a fitting according to an example of the embodiment will be described.
  • the bag body 100 with a fitting device shown in FIG. A fitting tool 1 is provided.
  • the bag body 50 has a rectangular shape when viewed from the front.
  • the fitting tool 1 is provided on the upper inner surface of the bag body 50 so as to extend in the lateral direction of the bag body 50. Note that the shape of the bag body 50 is not limited to a rectangle.
  • the bag body 50 is sealed with contents (not shown) enclosed therein.
  • the bag body 50 is obtained by overlapping a first film material 52 and a second film material 54 and heat-sealing all four peripheral edges 56. At the peripheral portion 56, both ends of the fitting tool 1 are heat-sealed together with the first film material 52 and the second film material 54.
  • the first film material 52 and the second film material 54 may be any material as long as the fitting tool 1 can be welded by heat sealing, and a laminated film having at least a sealant layer and a base material layer from the inner surface side is preferable.
  • Examples of the base material layer included in the laminated film include linear low density polyethylene, low density polyethylene, high density polyethylene, polyester, biaxially oriented nylon, biaxially oriented polypropylene, and the like.
  • Examples of the sealant layer included in the laminated film include linear low-density polyethylene, unstretched polypropylene, ethylene-vinyl acetate copolymer, and ionomer.
  • the laminated film may be provided with a functional layer such as a barrier layer.
  • the first film material 52 and the second film material 54 may be single-layer films consisting only of a sealant layer.
  • the bag body 50 is provided with a cutting auxiliary line 58 along the fitting tool 1 above the fitting tool 1.
  • the cutting aid line 58 is a linear portion processed to assist in cutting the bag body 50.
  • Examples of the cutting auxiliary line 58 include weakening lines provided in the first film material 52 and the second film material 54 at the cutting auxiliary line 58 portion.
  • the line of weakness can be formed by providing a portion of the film material that is thinner than the surrounding area.
  • the line of weakness can also be formed by perforations or pores formed in rows.
  • the cutting auxiliary line 58 is not limited to a weakened line, but may be a line formed by printing or the like that indicates a position to be cut with scissors, a cutter, or the like.
  • a notch 60 is formed at the end of the cutting auxiliary line 58 in the peripheral edge 56.
  • the shape of the notch 60 is not particularly limited, and a triangular or semicircular cutout can be adopted. Further, the notch 60 may be a cut provided in the peripheral portion 56.
  • FIG. 5 is a schematic perspective view showing the bag 100 opened.
  • the bag body 100 can be opened by cutting and removing the upper part of the bag body 50 from the notch 60 along the cutting auxiliary line 58 to form an opening 62 in the upper part.
  • the opening 62 formed in the bag body 100 can be repeatedly opened and closed by attaching and detaching the male side fitting member 10 and the female side fitting member 20 of the fitting tool 1.
  • TMA device heat shrinkage stress measurement
  • a TMA device manufactured by Hitachi High-Tech Science product name: TMA/SS 7100
  • the first base material which is a band-shaped base that does not include the first fitting part of the fitting tool fabricated in each example, was oriented in the direction along the fitting part.
  • the sample was cut in the longitudinal direction to have a length of 30 mm, a width of 4 mm, and a thickness of 0.15 mm, so that the sample length when set in a jig was 20 mm.
  • the TMA measurement used the following measurement conditions.
  • ⁇ Measurement mode Tensile mode ⁇ Temperature increase rate: 3 (°C/min) ⁇ Temperature range: 25-190 (°C) The upper limit of the temperature was measured to be 15° C. higher than the highest melting point of the resins to be blended. ⁇ Using atmosphere: High purity nitrogen (N 2 )
  • the shape of the fittings produced in each example was visually confirmed, and the formability of the fittings during bag making was evaluated according to the following evaluation criteria.
  • ⁇ The shape of the fitting tool was stably formed.
  • ⁇ The shape of the fitting tool was unstable, or the thickness of the base material portion was uneven.
  • Example 1 A composite deformed die was prepared for forming a male side fitting member and a female side fitting member having a two-layer structure excluding the intermediate layer from the fitting tool 1 illustrated in FIGS. 1 and 2.
  • resin material X-1 for forming the main layer PP1 was melt-kneaded using an extruder with a diameter of 50 mm and an L/D of 30 at a molding temperature of 190°C.
  • resin material Y-1 for forming the seal layer 40 parts by mass of PP3 and 60 parts by mass of LLDPE5 were melted at a molding temperature of 170°C using an extruder with a diameter of 30 mm and an L/D of 30. Kneaded.
  • Resin materials X-1 and Y-1 were introduced into a composite deformed die and extruded. Thereafter, the tape was introduced into a cooling water tank and cooled and solidified to obtain a fitting tool having a tape width of 13 mm and a total thickness of each of the first base material and the second base material of 0.15 mm.
  • the mass ratio of the main layer and the seal layer was 90:10.
  • Example 2 A composite deformed die for forming a male side fitting member and a female side fitting member having the same three-layer structure as the fitting tool 1 illustrated in FIGS. 1 and 2 was prepared.
  • the resin material X-1 for forming the main layer 40 parts by mass of LDPE1, 40 parts by mass of LLDPE1, and 20 parts by mass of LLDPE2 were mixed at a molding temperature using an extruder with a diameter of 50 mm and an L/D of 30. The mixture was melted and kneaded at 170°C.
  • the resin material Y-2 for forming the seal layer LLDPE6 was melt-kneaded at a molding temperature of 170° C.
  • HDPE1 was melt-kneaded as resin material Z-2 for forming the intermediate layer at a molding temperature of 190° C. using an extruder with a diameter of 30 mm and an L/D of 30.
  • Resin materials X-1, Y-1, and Z-1 were introduced into a composite deformed die and extruded. Thereafter, the tape was introduced into a cooling water tank and cooled and solidified to obtain a fitting tool having a tape width of 13 mm and a total thickness of each of the first base material and the second base material of 0.15 mm.
  • the mass ratio of the main layer, intermediate layer, and seal layer was 60:30:10.
  • Table 1 shows the compositions and evaluation results of the main layer, intermediate layer, and seal layer of each example.
  • thermomechanical analyzer As shown in Table 1, as a result of thermal contraction stress measurement using a thermomechanical analyzer (TMA device), (1) the temperature TA at the stress increase starting point (A) is 70°C or more and 140°C or less; (2) The load L B at the maximum stress point (B) is 1 mN or more and 200 mN or less, and (3) the numerical value of the slope between (A) and (B) is 0.1 or more and 10 or less, and The fitting of Example 2 had excellent moldability and heat resistance, that is, it was difficult to shrink and deform due to heat.
  • TMA device thermomechanical analyzer
  • the fitting tool of Comparative Example 4 showed that (1) the temperature T A at the stress increase starting point (A) was 70°C or more and 140°C; (2) The load L B at the maximum stress point (B) is 1 mN or more and 200 mN or less, but (3) the numerical value of the slope between (A) and (B) exceeds 10, and the bag manufacturing Sometimes the shape of the fitting was unstable or the thickness of the base material was uneven.
  • SYMBOLS 1... Fitting tool 10... Male side fitting member, 11... First base material, 11a... Surface, 12... Male side fitting part, 13... Main layer, 14... Seal layer, 15... Intermediate layer, 20... Female side fitting member, 21... Second base material, 21a... Surface, 22... Female side fitting part, 23... Main layer, 24... Seal layer, 25... Intermediate layer, 50... Bag body, 100... Fitting tool Comes with a bag body.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Slide Fasteners (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

L'invention concerne un outil de montage possédant de bonnes propriétés de moulage et n'étant pas sujet à se contracter ou à se déformer sous l'effet de la chaleur, et un corps de sac équipé d'un outil de montage dans lequel l'outil de montage est utilisé. La présente invention concerne un outil de montage (1) comprenant un élément de montage côté mâle (10) dans lequel une partie de montage côté mâle (12) est prévue le long d'une direction longitudinale sur une surface (11a) d'un premier substrat en forme de ceinture (11), et un élément de montage côté femelle (20) dans lequel une partie de montage côté femelle (22) est prévue le long de la direction longitudinale sur une surface (21a) d'un second substrat en forme de ceinture (21), la partie de montage côté mâle (12) et la partie de montage côté femelle (22) étant assemblées de manière amovible, les résultats de la mesure de la contrainte de retrait thermique à l'aide d'un dispositif d'analyse thermomécanique (dispositif TMA) indiquant que (1) la température TA d'un point de départ d'augmentation de la contrainte (A) est comprise entre 70 et 140°C, (2) la charge LB à un point de contrainte maximale (B) est comprise entre 1 et 200 mN, et (3) la valeur numérique de la pente entre (A) et (B) est comprise entre 0,1 et 10.
PCT/JP2023/010740 2022-03-31 2023-03-17 Outil de montage et corps de sac équipé d'un outil de montage Ceased WO2023189769A1 (fr)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008125799A (ja) * 2006-11-21 2008-06-05 Fuji Tokushu Shigyo Kk ジッパーテープの製造方法及びその装置
JP2009018052A (ja) * 2007-07-12 2009-01-29 C I Kasei Co Ltd 嵌合具及び嵌合具付包装用袋体
WO2009054313A1 (fr) * 2007-10-22 2009-04-30 Idemitsu Unitech Co., Ltd. Dispositif de verrouillage mutuel et sac d'emballage avec dispositif de verrouillage mutuel
JP2011200507A (ja) * 2010-03-26 2011-10-13 Idemitsu Unitech Co Ltd チャックテープ、チャックテープ付包装袋およびその製造方法
JP2016037316A (ja) * 2014-08-08 2016-03-22 シーアイ化成株式会社 嵌合具及び嵌合具付き袋体
JP2017006276A (ja) * 2015-06-18 2017-01-12 出光ユニテック株式会社 ジッパーテープおよびジッパーテープ付袋体
JP2020073120A (ja) * 2020-02-10 2020-05-14 タキロンシーアイ株式会社 嵌合具及び嵌合具付き袋体

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008125799A (ja) * 2006-11-21 2008-06-05 Fuji Tokushu Shigyo Kk ジッパーテープの製造方法及びその装置
JP2009018052A (ja) * 2007-07-12 2009-01-29 C I Kasei Co Ltd 嵌合具及び嵌合具付包装用袋体
WO2009054313A1 (fr) * 2007-10-22 2009-04-30 Idemitsu Unitech Co., Ltd. Dispositif de verrouillage mutuel et sac d'emballage avec dispositif de verrouillage mutuel
JP2011200507A (ja) * 2010-03-26 2011-10-13 Idemitsu Unitech Co Ltd チャックテープ、チャックテープ付包装袋およびその製造方法
JP2016037316A (ja) * 2014-08-08 2016-03-22 シーアイ化成株式会社 嵌合具及び嵌合具付き袋体
JP2017006276A (ja) * 2015-06-18 2017-01-12 出光ユニテック株式会社 ジッパーテープおよびジッパーテープ付袋体
JP2020073120A (ja) * 2020-02-10 2020-05-14 タキロンシーアイ株式会社 嵌合具及び嵌合具付き袋体

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