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WO2018003119A1 - Ruban de fermeture, fermeture à glissière munie d'un ruban de fermeture, et procédé de fabrication d'un ruban de fermeture - Google Patents

Ruban de fermeture, fermeture à glissière munie d'un ruban de fermeture, et procédé de fabrication d'un ruban de fermeture Download PDF

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Publication number
WO2018003119A1
WO2018003119A1 PCT/JP2016/069668 JP2016069668W WO2018003119A1 WO 2018003119 A1 WO2018003119 A1 WO 2018003119A1 JP 2016069668 W JP2016069668 W JP 2016069668W WO 2018003119 A1 WO2018003119 A1 WO 2018003119A1
Authority
WO
WIPO (PCT)
Prior art keywords
polycarbonate
urea
polyurethane urea
group
fastener tape
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/JP2016/069668
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English (en)
Japanese (ja)
Inventor
俊孝 若林
稔正 小中
祐介 石森
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.)
YKK Corp
Original Assignee
YKK 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 YKK Corp filed Critical YKK Corp
Priority to CN201680086207.2A priority Critical patent/CN109195475B/zh
Priority to CN202110800451.3A priority patent/CN113498915B/zh
Priority to PCT/JP2016/069668 priority patent/WO2018003119A1/fr
Priority to TW106108279A priority patent/TWI620527B/zh
Publication of WO2018003119A1 publication Critical patent/WO2018003119A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/24—Details
    • A44B19/32—Means for making slide fasteners gas or watertight
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/24—Details
    • A44B19/34—Stringer tapes; Flaps secured to stringers for covering the interlocking members
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/42—Making by processes not fully provided for in one other class, e.g. B21D53/50, B21F45/18, B22D17/16, B29D5/00
    • 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
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • 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
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • 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
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • 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
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207—Heat-activated adhesive
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207—Heat-activated adhesive
    • B32B2037/1215—Hot-melt adhesive
    • 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
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B2037/1253—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives curable adhesive
    • B32B2037/1261—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives curable adhesive moisture curable
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable

Definitions

  • the present invention relates to a waterproof fastener tape.
  • the present invention also relates to a slide fastener provided with a waterproof fastener tape.
  • the present invention also relates to a method for producing a waterproof fastener tape.
  • Slide fasteners are widely used as opening and closing devices for daily necessities such as clothing, bags, shoes, and miscellaneous goods.
  • protective clothing such as space suits, chemical protective suits, diving suits, and survival suits, and transport containers It is also used for covers and tents.
  • the slide fastener is also required to be waterproof.
  • a slide fastener is a pair of elongated fastener tapes, a fastener element that is a meshing portion of a fastener sewn along one side edge of each tape, and opening and closing the fastener by meshing and separating the fastener elements.
  • a slide fastener that exhibits waterproofness by attaching a synthetic resin film having waterproofness to a fastener tape and bringing the synthetic resin films of the left and right fastener tapes into close contact with each other at the time of meshing is conventionally known.
  • a polyurethane film is known as a synthetic resin film.
  • Patent Document 1 discloses a method of bonding a polyurethane film to a fastener tape using an aqueous polyurethane adhesive.
  • Patent Document 2 discloses a method of coating a polyurethane film on a fastener tape via an inner layer made of a polyurethane adhesive, a binder, or a hot melt adhesive.
  • WO2014 / 010019 The technology described in WO2014 / 010019 can be evaluated in that water is used as a dispersion medium for the adhesive in consideration of environmental load. However, there remains a problem that it takes a long time to dry the adhesive.
  • a hot melt adhesive is used.
  • the hot melt adhesive is a solventless type adhesive and can solve the problem of drying time. However, since a hot melt adhesive uses a thermoplastic resin, a problem remains in heat resistance.
  • the reactive hot melt adhesive obtained by imparting reactivity to the hot melt adhesive.
  • the reactive hot melt adhesive is a solvent-free type and can be said to be a promising adhesive because it has improved heat resistance.
  • there is still room for improvement in terms of the characteristics required of waterproof fastener tapes such as heat resistance, hydrolysis resistance, and reciprocating opening / closing durability, and a comprehensive balance of environmental load and productivity.
  • the present invention has been made in view of the above circumstances, and there is a total balance of properties required for waterproof fastener tapes such as heat resistance, hydrolysis resistance and reciprocating opening / closing durability, and environmental load and productivity.
  • An object is to provide an improved waterproof fastener tape.
  • Another object of the present invention is to provide a method for producing such a waterproof fastener tape.
  • the present inventor has intensively studied to solve the above-mentioned problems, and it is effective to produce a waterproof fastener tape using a reactive hot melt adhesive mainly composed of a predetermined isocyanate group-terminated urethane prepolymer. I found out.
  • the present invention has been made based on such knowledge.
  • the present invention provides a fastener tape comprising a base fabric and a water-stop film attached to at least one surface of the base fabric, the water-stop film having a single-layer structure of a polyurethane urea film.
  • the polyurethane urea is one or more selected from the group consisting of polycarbonate polyurethane urea, polycarbonate / polyether polyurethane urea, polycarbonate / polyester polyurethane urea, and polycarbonate / polyether / polyester polyurethane urea.
  • a fastener tape having a urethane group and a urea group, wherein the mole fraction of the urea group is 0.1 to 0.5 when the total mole fraction of the urethane group and the urea group is 1. .
  • the polyurethane urea constituting the water-stopping film is a polycarbonate / polyether / polyester polyurethane urea.
  • a fastener tape comprising a base fabric and a water-stop film attached to at least one surface of the base fabric, the water-stop film being a surface layer made of a polyurethane urea film, , Having a laminated structure having a polyurethane urea adhesive layer adjacent to the surface layer, the polyurethane urea constituting the adhesive layer is a polycarbonate-based polyurethane urea, a polycarbonate-polyether polyurethane urea, a polycarbonate-polyester polyurethane urea, and One or more polyurethane ureas selected from the group consisting of polycarbonate, polyether, and polyester-based polyurethane urea, having urethane groups and urea groups, and urea having a total molar fraction of urethane groups and urea groups of 1. The molar fraction of the group is 0.1 Is a fastener tape is 0.5.
  • the polyurethane urea constituting the surface layer contains a polycarbonate-based polyurethane urea.
  • the polyurethane urea constituting the adhesive layer is a polycarbonate / polyether / polyester polyurethane urea.
  • the present invention is a slide fastener including the fastener tape according to the present invention.
  • a method for producing a fastener tape comprising: Reactive hot melt adhesives include polycarbonate-based isocyanate-terminated urethane prepolymers, polycarbonate-polyether-based isocyanate-terminated urethane prepolymers, polycarbonate-polyester-based isocyanate-terminated urethane prepolymers, and polycarbonate-polyether- One or more prepolymers selected from the group consisting of polyester-based isocyanate group-terminated urethane prepolymers, wherein the molar ratio of isocyanate groups to urethane groups is 0.5 to 1.5.
  • the production method contains a prepolymer as a main component.
  • a method for producing a fastener tape comprising: Reactive hot melt adhesives include polycarbonate-based isocyanate-terminated urethane prepolymers, polycarbonate-polyether-based isocyanate-terminated urethane prepolymers, polycarbonate-polyester-based isocyanate-terminated urethane prepolymers, and polycarbonate-polyether- One or more prepolymers selected from the group consisting of polyester-based isocyanate group-terminated urethane prepolymers, wherein the molar ratio of isocyanate groups to urethane groups is 0.5 to 1.5.
  • the production method contains a prepolymer as a main component.
  • a method for producing a fastener tape comprising: Reactive hot-melt adhesives for adhesive layers and reactive hot-melt adhesives for surface layers are both polycarbonate-based isocyanate group-terminated urethane prepolymers, polycarbonate-polyether-based isocyanate group-terminated urethane prepolymers, and polycarbonate-polyester types.
  • This is a production method comprising as a main component a prepolymer having an isocyanate group molar ratio of 0.5 to 1.5.
  • the reactive hot melt adhesive used in the present invention is solventless, has a low environmental load, and is excellent in reactivity and handling workability, thus contributing to an improvement in the productivity of waterproof fastener tapes. Moreover, the reactive hot melt adhesive used in the present invention can form a cured product excellent in hydrolysis resistance, heat resistance and reciprocating open / close durability. As a result, the waterproof fastener tape according to the present invention improves the overall balance of characteristics required for waterproof fastener tapes such as heat resistance, hydrolysis resistance and reciprocating opening / closing durability, and environmental load and productivity. Is possible.
  • FIG. 1 It is a schematic diagram which shows the laminated structure of the fastener tape of the slide fastener which concerns on 1st embodiment of this invention. It is a schematic diagram which shows the laminated structure of the fastener tape of the slide fastener which concerns on 2nd one Embodiment of this invention. It is a top view of a slide fastener concerning one embodiment of the present invention. It is sectional drawing of the slide fastener which concerns on one Embodiment of this invention. It is a perspective sectional view of a slide fastener concerning one embodiment of the present invention. It is a perspective view of the fastener stringer which comprises the slide fastener which concerns on another embodiment of this invention. It is sectional drawing of the slide fastener which concerns on FIG.
  • FIG. 1 shows a laminated structure of fastener tapes of slide fasteners according to the first embodiment of the present invention.
  • the fastener tape 10 a includes a base cloth 11 and a multilayer waterproof film 12 a attached to at least one surface of the base cloth 11.
  • the multilayer water-stop film 12 a includes a surface layer 13 made of a polyurethane urea film and a polyurethane urea adhesive layer 14 adjacent to the surface layer 13.
  • the adhesive layer 14 is a cured body of a reactive hot melt adhesive. That is, the fastener tape 10 a includes the adhesive layer 14 on the base fabric 11 side of the surface layer 13, and the adhesive layer 14 adheres the base fabric 11 and the surface layer 13 to each other.
  • the fastener tape 10a has a laminated structure in which the surface layer 13, the adhesive layer 14, and the base fabric 11 are laminated in this order from the upper side of FIG.
  • FIG. 2 shows a laminated structure of the fastener tape of the slide fastener according to the second embodiment of the present invention.
  • the fastener tape 10b includes a base cloth 11 and a single layer waterproofing film 12b made of polyurethane urea attached to at least one surface of the base cloth 11.
  • the single-layer water-stop film 12 b is a cured body of a reactive hot melt adhesive and is in direct contact with the base fabric 11. That is, the single-layer water-stop film 12b in the fastener tape 10b plays the roles of the surface layer 13 and the adhesive layer 14 in the first embodiment at the same time.
  • the fastener tape 10b has a laminated structure in which the single-layer water-stop film 12b and the base fabric 11 are laminated in this order from the upper side of FIG.
  • the material of the base fabric 11 can be natural fibers or synthetic fibers generally used for fastener tapes, and is not particularly limited, and examples thereof include polyamide fibers, polyester fibers, and acrylic fibers.
  • the base fabric 11 can be produced by weaving or knitting these synthetic fibers. Typically, it can be woven or knitted with polyester fibers.
  • the polyurethane urea constituting the adhesive layer 14 in the first embodiment and the single-layer water-stop film 12b in the second embodiment is a polycarbonate-based polyurethane urea, a polycarbonate / polyether-based polyurethane urea, a polycarbonate / polyester-based polyurethane urea, and And one or more polyurethaneurea selected from the group consisting of polycarbonate, polyether, and polyester polyurethaneurea.
  • the polyurethane urea is from the group consisting of polycarbonate / polyether-based polyurethane urea and polycarbonate / polyether / polyester-based polyurethane urea.
  • the polyurethane urea is preferably one or more selected polyurethane ureas, and from the viewpoint of enhancing the overall balance of hydrolysis resistance, heat resistance, reciprocating durability and flexibility, the polyurethane urea is a polycarbonate / polyether / polyether.
  • a polyester-based polyurethane urea is more preferable.
  • the polyurethane urea constituting the adhesive layer 14 in the first embodiment and the single-layer water-stop film 12b in the second embodiment has a urethane group (—NHCOO—) and a urea group (—NHCONH—) bonded to each other between polymer units.
  • a urethane group —NHCOO—
  • a urea group —NHCONH—
  • the polyurethane urea has a urethane group and a urea group at a predetermined ratio, thereby obtaining a balance of waterproofness, strength, weather resistance, abrasion resistance, aesthetics and flexibility suitable for a fastener tape. It contributes to that.
  • Polycarbonate-based polyurethane urea refers to a polymer having a portion where polycarbonates are bonded by urea groups and a portion bonded by urethane groups.
  • Polycarbonate / polyether polyurethaneurea is a copolymer of polycarbonate urethane and polyetherurethane, typically a block copolymer, in which polymer units are bonded to each other by urea groups and polymer units are bonded to each other by urethane groups. Refers to a copolymer having a moiety to which.
  • Polycarbonate / polyester-based polyurethaneurea is a copolymer of polycarbonate urethane and polyesterurethane, typically a block copolymer, in which polymer units are bonded to each other by urethane groups and urethane units are bonded to each other. It refers to a copolymer having a moiety.
  • Polycarbonate / polyether / polyester polyurethaneurea is a copolymer of polycarbonate urethane, polyetherurethane and polyesterurethane, typically a block copolymer, where urethane units and urethane units are bonded together. A copolymer having a portion in which polymer units are bonded to each other by a group.
  • the polyurethane urea constituting the adhesive layer 14 in the first embodiment and the single-layer water-stop film 12b in the second embodiment has a urethane group (—NHCOO—) and a urea group (—NHCONH—).
  • the molar ratio of both in polyurethane urea affects the properties of the adhesive layer 14 and the single-layer water-stop film 12b, the handling workability before the adhesive layer 14 and the single-layer water-stop film 12b are cured, and the reactivity. .
  • the molar ratio of urea groups to polyurethane groups in polyurethane urea is too low, in other words, the molar ratio of isocyanate groups (NCO groups) to urethane groups (—NHCOO—) in the reactive hot melt adhesive before curing is too low.
  • NCO groups isocyanate groups
  • —NHCOO— urethane groups
  • the molar ratio of the urea group to the urethane group in the polyurethane urea is increased, in other words, the molar ratio of the isocyanate group (—NCO) to the urethane group (—NHCOO—) in the reactive hot melt adhesive before curing.
  • the molar fraction of the urea group is 0.1 or more, more preferably 0.2 or more when the total molar fraction of the urethane group and the urea group in the polyurethane urea is 1. .
  • the molar ratio of the urea group to the urethane group in the polyurethane urea is too high, in other words, the molar ratio of the isocyanate group (—NCO) to the urethane group (—NHCOO—) in the reactive hot melt adhesive before curing. If it becomes too high, the amount of foaming will increase at the time of curing, and the aesthetic appearance will be impaired, and the flexibility of the resulting polyurethane urea tends to be impaired.
  • the molar fraction of the urea group is preferably 0.5 or less, more preferably 0.4 or less when the total molar fraction of the urethane group and urea group in the polyurethane urea is 1. .
  • the mole fraction of the urea group in the polyurethane urea can be measured by obtaining a 13 C-NMR spectrum using an NMR measuring apparatus and analyzing it. Specifically, a sample obtained by cutting off a water-stopping film or an adhesive layer to 50 to 100 mg (in some cases it may be less) is prepared as a sample, set in an NMR measuring apparatus, and measured.
  • the measurement conditions are as follows. Measurement nucleus: 13C Resonance frequency: 500 MHz Integration count: 252 times Measurement temperature: 25 ° C Measurement method: DDMAS method * Accumulated number of times above; minimum value that can determine peak
  • the polyurethane urea constituting the surface layer 13 can employ the polyurethane urea that can constitute the adhesive layer 14 described above, and other polyurethane ureas can also be employed. Therefore, the polyurethane urea constituting the surface layer 13 is selected from the group consisting of polycarbonate / polyether polyurethane urea, polycarbonate / polyester polyurethane urea, and polycarbonate / polyether / polyester polyurethane urea, like the adhesive layer 14. One or more polyurethaneureas can be used.
  • the polyurethane urea constituting the surface layer 13 may have the same composition as the polyurethane urea constituting the adhesive layer 14 or may have a different composition.
  • polycarbonate-based polyurethane urea refers to a polymer having a portion in which polycarbonate ends are bonded by urea groups and a portion in which polycarbonate ends are bonded by urethane groups.
  • the thickness of the water-stopping films 12a and 12b is preferably 0.07 mm or more, and more preferably 0.10 mm or more because the texture is impaired if the thickness is too thin. On the other hand, if the thickness of the water-stopping films 12a and 12b is too thick, the slider is slidably contacted when the slide fastener is opened and closed to impair the slidability. Is more preferable.
  • the reactive hot melt adhesive for the adhesive layer and the reactive hot melt adhesive for the surface layer are laminated on the base fabric in this order. And a step of sequentially laminating or simultaneously laminating and a step of moisture curing both the reactive hot melt adhesive for the adhesive layer and the reactive hot melt adhesive for the surface layer.
  • This method is a manufacturing method in the case where the water-stopping film is composed of a multilayer of an adhesive layer and a surface layer.
  • a step of applying a reactive hot melt adhesive onto a base fabric and a step of moisture curing the reactive hot melt adhesive is included.
  • the reactive hot melt adhesive can be applied to the base fabric by a conventionally known coating method such as roll coater, die coater, bead coating, and spraying.
  • Reactive hot melt adhesive is generally applied to the base fabric in a heated state, but it can be used on a base fabric with low heat resistance, and the stability of the adhesive is reduced.
  • the coating is preferably performed at a temperature of 130 ° C. or lower, more preferably at a temperature of 120 ° C. or lower. Further, from the viewpoint of improving the fluidity and workability of the adhesive, it is preferable that the coating is heated to 100 ° C or higher, and it is even more preferable that the coating is heated to 110 ° C or higher.
  • the melt viscosity of the reactive hot melt adhesive is preferably 5 Pa ⁇ s / 120 ° C. to 50 Pa ⁇ s / 120 ° C., preferably 7 Pa ⁇ s. Even more preferably, it is / 120 ° C. to 30 Pa ⁇ s / 120 ° C.
  • the melt viscosity of the reactive hot melt adhesive can be measured under the following conditions. Apparatus: Cone plate viscometer (made by ICI) 20P cone Temperature condition: 120 ° C
  • the melting temperature of the reactive hot melt adhesive is preferably 40 ° C. to 100 ° C., more preferably 50 to 90 ° C.
  • the melting temperature of the reactive hot melt adhesive refers to a value measured by DSC (Differential Scanning Calorimetry) measurement based on JIS K7121: 2012.
  • the reactive hot melt adhesive is a polycarbonate-based isocyanate group-terminated urethane prepolymer, a polycarbonate / polyether-based isocyanate group-terminated urethane prepolymer, or a polycarbonate / polyester-based isocyanate group-terminated urethane prepolymer.
  • the amount of urea groups produced does not increase.
  • the molar ratio of isocyanate group to hydroxyl group is less than 1.5 (in other words, the molar ratio of isocyanate group to urethane group in the isocyanate group-terminated urethane prepolymer is less than 0.5)
  • the molecular weight (viscosity) of the urethane prepolymer is very high. However, sufficient urea groups are not formed.
  • the molar ratio of the isocyanate group to the hydroxyl group before producing the urethane prepolymer is preferably 1.5 or more, and more preferably 1.7 or more.
  • the molar ratio of isocyanate groups to urethane groups in the isocyanate group-terminated urethane prepolymer is preferably 0.5 or more, and more preferably 0.7 or more.
  • the molar ratio of the isocyanate group to the hydroxyl group before forming the urethane prepolymer exceeds 2.5 (in other words, the molar ratio of the isocyanate group to the urethane group in the isocyanate group-terminated urethane prepolymer is 1.5). If it exceeds, the foam will increase at the time of curing and the aesthetics will be impaired, or the cured body will become too hard and the flexibility will be impaired. For this reason, it is preferable that the molar ratio of the isocyanate group with respect to the hydroxyl group before producing
  • generating a urethane prepolymer is 2.5 or less, and it is more preferable that it is 2.3 or less. In other words, the molar ratio of isocyanate groups to urethane groups in the isocyanate group-terminated urethane prepolymer is preferably 1.5 or less, and more preferably 1.3 or less.
  • the moisture curing of reactive hot melt adhesive proceeds at room temperature. For this reason, heating energy can be reduced.
  • moisture curing progresses over time (for example, about 24 hours)
  • urea bonds are generated, and burette bonds, allophanate bonds, and the like are also generated, and a three-dimensional crosslinked structure develops (aging).
  • the water-stop film was affixed or formed on the base fabric, and the fastener tape which comprised waterproofing performance was obtained.
  • it is difficult to quantitatively analyze the three-dimensional crosslinking and since it is a very small amount, it is not a subject of discussion in the present invention.
  • FIG. 3 is a plan view of the entire waterproof slide fastener 20
  • FIG. 4 is a cross-sectional view showing a state in which the element row 21 is engaged in the slider 22
  • FIG. 5 is a perspective cross-sectional view of a part of the waterproof slide fastener 20.
  • the coiled fastener element row 21 can be formed from a monofilament of synthetic resin such as polyamide or polyester.
  • the water stop film 12 of the pair of fastener tapes 10 can be adhered to the fabric of the article via an adhesive. Alternatively, the water-stop film 12 and the fabric can be welded by high frequency and can be sewn.
  • a slider is inserted between the left and right element rows, and the open / close state of the slide fastener can be controlled by sliding the slider.
  • the sewing thread 24 may be water-repellent.
  • the waterproof film 12 protrudes to the side of the mesh centerline A of the element row with respect to the side edge of the base fabric 11, so that the right and left waterproof films 12 are easily adhered to each other, and the waterproof property is improved. If the side edges of the water-stopping film 12 are protruded so as to slightly exceed the meshing center line A of the element row, the left and right water-stopping films 12 are in close contact with each other when the left and right element rows are engaged, and thus higher. Waterproofness is obtained.
  • the side to which the water stop film 12 is attached is the outer surface and the fastener element row 21 side is the inner surface and is attached to the adherend.
  • the handle 25 of the slider 22 can be attached to the outer surface side.
  • an upper stopper 26 can be provided, and although not shown, a lower stopper, a release fitting, etc. can be attached.
  • FIG. 6 and 7 are partial schematic diagrams of a waterproof slide fastener according to another embodiment of the present invention. Specifically, FIG. 6 shows a part of the fastener stringer 27 constituting the waterproof slide fastener according to this embodiment, and FIG. 7 shows the slide fastener according to this embodiment, in which the left and right fastener elements 28 are sliders. It is sectional drawing which shows the state meshed
  • the fastener element 28 is injection-molded so as to sandwich the entire core portion 31 formed on the edge of the fastener tape 30 from the front and back sides.
  • the slider 29 is indicated by an imaginary line by a one-dot chain line.
  • the fastener tape 30 is formed by sticking a water stop film 33 to the outer surface of the base fabric 32.
  • tip (end part which opposes the other side fastener tape) of the one side fastener element 28 closely_contact
  • Example 1 A reactive hot melt adhesive having the following specifications, which is mainly composed of a polycarbonate / polyether / polyester isocyanate group-terminated urethane prepolymer, was prepared. DIC Corporation, product number: Tyforce NH-470 Melt viscosity: 15 Pa ⁇ s / 120 ° C
  • Example 2 A reactive hot melt adhesive having the following specifications mainly comprising a polycarbonate-based isocyanate group-terminated urethane prepolymer was prepared. DIC Corporation, product number: Tyforce NH-460 Melt viscosity: 20 Pa ⁇ s / 120 ° C
  • Example 3 A reactive hot melt adhesive having the following specifications, which is mainly composed of a polycarbonate / polyether-based isocyanate group-terminated urethane prepolymer, was prepared.
  • Example 4 A reactive hot melt adhesive having the following specifications, which is mainly composed of a polycarbonate / polyester-based isocyanate group-terminated urethane prepolymer, was prepared. DIC Corporation, product number: Tyforce NH-490 Melt viscosity: 15 Pa ⁇ s / 120 ° C
  • the melt viscosity of the reactive hot melt adhesive was measured using a cone plate viscometer (manufactured by ICI) 20P cone according to the measurement conditions described above.
  • each sample of waterproof fastener tape having a water-stopping film having a single layer structure of polyurethane urea film was produced.
  • a waterproof fastener having a structure shown in FIGS. 3 to 5 was manufactured by attaching an element and a slider to each sample of the waterproof fastener tape.
  • Example 1 in which a polycarbonate / polyether / polyester polyurethane urea was used for the water-stopping film was able to exhibit various characteristics in a well-balanced manner.
  • Example 2 in which polycarbonate-based polyurethane urea was used for the water-stopping film was particularly excellent in hydrolysis resistance.
  • the surface layer is made of polycarbonate-based polyurethane urea
  • the adhesive layer is made of polycarbonate-polyether-polyester-based polyurethane urea. Can be obtained.
  • Comparative Example 1 did not contain a polycarbonate component, hydrolysis resistance and heat resistance were insufficient.
  • Comparative Example 2 polycarbonate / polyether / polyester polyurethane urea was used for the water-stopping film, but the foaming amount was excessive due to the excessive mole fraction of the urea group, and the appearance was impaired.
  • Comparative Example 3 polycarbonate / polyether / polyester-based polyurethane urea was used for the water-stopping film. However, since the urea group had a too small molar fraction, it was easily worn and the opening / closing durability was insufficient.

Landscapes

  • Adhesives Or Adhesive Processes (AREA)
  • Slide Fasteners (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un ruban de fermeture imperméable présentant un meilleur équilibre général des propriétés requises dans un ruban de fermeture imperméable, comme la résistance à la chaleur, la résistance à l'hydrolyse, et la durabilité du va-et-vient d'ouverture et de fermeture ainsi que la charge environnementale et la productivité. Le ruban de fermeture imperméable utilise, en guise de film formant barrière à l'eau, un polyuréthane-urée qui est au moins un polyuréthane-urée choisi dans le groupe constitué par un polyuréthane-urée à base de polycarbonate, un polyuréthane-urée à base de polyéther et de polycarbonate, un polyuréthane-urée à base de polycarbonate et de polyester, et un polyuréthane-urée à base de polycarbonate, de polyéther et de polyester, et qui comprend un groupe uréthane et un groupe urée, la fraction molaire du groupe urée étant de 0,1 à 0,5 lorsque la fraction molaire totale du groupe uréthane et du groupe urée est de 1.
PCT/JP2016/069668 2016-07-01 2016-07-01 Ruban de fermeture, fermeture à glissière munie d'un ruban de fermeture, et procédé de fabrication d'un ruban de fermeture Ceased WO2018003119A1 (fr)

Priority Applications (4)

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CN201680086207.2A CN109195475B (zh) 2016-07-01 2016-07-01 拉链带、具备该拉链带的拉链以及拉链带的制造方法
CN202110800451.3A CN113498915B (zh) 2016-07-01 2016-07-01 防水性拉链以及防水性拉链的制造方法
PCT/JP2016/069668 WO2018003119A1 (fr) 2016-07-01 2016-07-01 Ruban de fermeture, fermeture à glissière munie d'un ruban de fermeture, et procédé de fabrication d'un ruban de fermeture
TW106108279A TWI620527B (zh) 2016-07-01 2017-03-14 Zipper chain cloth, zipper having the zipper chain cloth, and manufacturing method of zipper chain cloth

Applications Claiming Priority (1)

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PCT/JP2016/069668 WO2018003119A1 (fr) 2016-07-01 2016-07-01 Ruban de fermeture, fermeture à glissière munie d'un ruban de fermeture, et procédé de fabrication d'un ruban de fermeture

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CN111374399A (zh) * 2018-12-26 2020-07-07 Ykk株式会社 拉链链牙带和拉链链牙带的制造方法

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CN109195475B (zh) 2021-08-03
TWI620527B (zh) 2018-04-11
CN113498915B (zh) 2023-09-26
TW201801634A (zh) 2018-01-16
CN109195475A (zh) 2019-01-11

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