CN110494058B - Fastener tape, slide fastener provided with same, and method for manufacturing fastener tape - Google Patents
Fastener tape, slide fastener provided with same, and method for manufacturing fastener tape Download PDFInfo
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- CN110494058B CN110494058B CN201780089450.4A CN201780089450A CN110494058B CN 110494058 B CN110494058 B CN 110494058B CN 201780089450 A CN201780089450 A CN 201780089450A CN 110494058 B CN110494058 B CN 110494058B
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- Prior art keywords
- polyurethane
- fastener tape
- adhesive
- fastener
- skin layer
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- 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
Abstract
The invention provides a zipper tape made of resin film adhered with metal color with improved adhesive strength. A fastener tape (10) having a laminated structure, comprising base fabrics (11, 32), and resin films (12, 33) on at least one surface of the base fabrics (11, 32), wherein the resin films (12, 33) comprise: a skin layer (13) formed from a polyurethane film containing 2.5-20% by mass of metal powder (15); and an adhesive layer (14) which is adjacent to the skin layer (13) and is formed from a cured product of a cross-linked polyurethane adhesive.
Description
Technical Field
The present invention relates to a fastener tape having a resin film on a surface thereof. The present invention also relates to a slide fastener including a fastener tape having a resin film formed on a surface thereof. The present invention also relates to a method for manufacturing a fastener tape having a resin film on a surface thereof.
Background
Slide fasteners are widely used as openers and closers for daily necessities such as clothes, bags, shoes, and miscellaneous goods, and in addition, slide fasteners are used for protective clothing such as space suits, chemical protective clothing, diving suits, and life jackets, covers for transport containers, tents, and the like. For such special uses, the slide fastener is also required to have waterproofness. Further, there is a case where it is desired to add waterproofness to a slide fastener for daily use.
Generally, a slide fastener mainly includes the following three parts: conventionally, there are known a pair of long fastener tapes, fastener elements as engaging portions of a slide fastener sewn along one side edge of each tape, and a slider for controlling opening and closing of the slide fastener by engaging and disengaging the fastener elements, as follows: in order to impart waterproofness, synthetic resin films having waterproofness are attached to the fastener tapes, and the waterproofness is exerted by the synthetic resin films of the left and right fastener tapes coming into close contact when the fastener elements are engaged.
For example, the following is described in japanese patent application laid-open No. 2000-312604 (patent document 1): a laminated synthetic resin film comprising a low-melting-point resin layer and a high-melting-point resin layer is fused to at least one surface of a fastener tape of a slide fastener so that the low-melting-point resin layer faces the fastener tape surface and is in contact with the fastener tape surface. As materials for laminating the synthetic resin film, polyurethane-based resins and polyester-based resins are disclosed.
A liquid-tight slide fastener is disclosed in japanese patent laid-open No. 2008-194066 (patent document 2): a pair of left and right spiral coupling element rows through which a core thread is inserted are attached by sewing along opposing side edges of a pair of left and right fastener tapes having a liquid-tight layer formed on one surface. The following protocol is described: the liquid-tight layer is a resin layer of polyurethane, polyolefin or the like, and is joined integrally with the fastener tape by welding or adhesion.
International publication No. 2014/010019 (patent document 3) proposes a fastener tape having a laminated structure in which a water-blocking film using aqueous polyurethane is bonded to a base fabric via an adhesive layer, in order to provide an environmentally friendly waterproof fastener tape.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 2000-312604
Patent document 2: japanese laid-open patent publication No. 2008-194066
Patent document 3: international publication No. 2014/010019
Disclosure of Invention
In recent years, there has been a demand for development of various versatile products in the field of slide fasteners, depending on the variety of interests of users. This is the same for the waterproof slide fastener, and there is an increasing demand for a commodity excellent in design property and fashion property in addition to the waterproof property. Among such various demands, there is a demand for a waterproof slide fastener using a fastener tape having a metallic appearance.
However, according to the results of the studies by the present inventors, it was found that when a metallic colored film is attached to a fastener tape, there was a problem that a high adhesive strength cannot be obtained and the film is easily peeled from the fastener tape. In the above-described conventional techniques, the water-blocking film is not intended to have a metallic appearance, and no solution to this problem is suggested.
The present invention has been made in view of the above circumstances, and an object thereof is to provide a fastener tape to which a resin film having a metallic color is attached with improved adhesion strength. Another object of the present invention is to provide a slide fastener provided with such a fastener tape, and another object of the present invention is to provide a method for producing such a fastener tape.
The present inventors have conducted intensive studies to solve the above problems and found that, when a resin film of a metallic color is attached to a fastener tape via an adhesive, the resin film is easily peeled not at the interface between the adhesive and the fastener tape but at the interface between the adhesive and the resin film. The present inventors investigated the cause and found that the resin film of the metallic color contains metal powder, which is a cause of the decrease in the adhesive strength.
Therefore, the present inventors have studied a method for improving the adhesive strength between a resin film of a metallic color and an adhesive, and have found that it is effective to devise a method for the content of the metal powder and the type of the adhesive, and have completed the present invention.
One aspect of the present invention provides a fastener tape having a laminated configuration,
the resin film forming device comprises a base fabric and a resin film on at least one surface of the base fabric, wherein the resin film forming device comprises: a skin layer formed of a polyurethane film containing 2.5 to 20 mass% of metal powder; and an adhesive layer adjacent to the skin layer and formed from a cured product of the crosslinked polyurethane adhesive.
In one embodiment of the fastener tape according to the present invention, the polyurethane film forming the surface layer contains 3 to 15 mass% of metal powder.
In another embodiment of the fastener tape according to the present invention, the resin film contains 0.6 to 4.0 mass% of metal powder in the total mass of the surface layer and the adhesive layer.
In still another embodiment of the fastener tape according to the present invention, the metal powder has an average particle diameter of 5 to 30 μm.
In still another embodiment of the fastener tape according to the present invention, the arithmetic average height Sa of the outer surface of the skin-like layer is 10 μm or less.
In still another embodiment of the fastener tape according to the present invention, the arithmetic average height Sa of the outer surface of the skin-like layer is 6 μm or less.
In another embodiment of the fastener tape according to the present invention, the root-mean-square height Sq of the outer surface of the skin-like layer is 13 μm or less.
In still another embodiment of the fastener tape according to the present invention, the adhesive strength between the adhesive layer and the surface layer is higher than the adhesive strength between the adhesive layer and the base fabric.
Another aspect of the present invention provides a slide fastener including the fastener tape according to the present invention.
Another aspect of the present invention provides a method for manufacturing a fastener tape according to the present invention, comprising:
coating a polyurethane dispersion containing metal powder on a release film;
a step of applying a cross-linked polyurethane adhesive to the polyurethane dispersion before or after the polyurethane in the polyurethane dispersion is cured;
a step of bonding a base cloth to the cross-linked polyurethane adhesive before the cross-linked polyurethane adhesive is cured; and
and curing the uncured polyurethane in the presence of the uncured polyurethane in the crosslinked polyurethane adhesive and the polyurethane dispersion.
In one embodiment of the method for producing a fastener tape according to the present invention, the crosslinking polyurethane adhesive is a two-pack curing type.
In another embodiment of the method for producing a fastener tape according to the present invention, the polyurethane dispersion containing the metal powder contains a two-pack type curable polyurethane.
Effects of the invention
According to the present invention, a fastener tape having improved adhesive strength between a resin film of a metallic color and a base fabric is provided. By using the fastener tape according to the present invention, a slide fastener can be obtained which has a metallic design with a high-grade feeling and in which the resin film is difficult to peel. Therefore, according to the present invention, by using a resin film of a metallic color, the design change of a slide fastener (particularly a waterproof slide fastener) including a fastener tape having a resin film (particularly a waterproof resin film) on the surface thereof can be expanded without sacrificing the adhesive strength, and the industrial utility value is very high.
Drawings
Fig. 1 is a schematic view showing a laminated structure of fastener tapes of a slide fastener according to an embodiment of the present invention.
Fig. 2 is a plan view of a slide fastener according to an embodiment of the present invention.
Fig. 3 is a sectional view of a slide fastener according to an embodiment of the present invention.
Fig. 4 is a perspective sectional view of a slide fastener according to an embodiment of the present invention.
Fig. 5 is a perspective view of a fastener stringer constituting a slide fastener according to another embodiment of the present invention.
Fig. 6 is a sectional view of the slide fastener of fig. 5.
Description of the reference numerals
10 zipper tape
11 base cloth
12 resin film
13 epidermal layer
14 adhesive layer
15 metal powder
20 waterproof zipper
21 fastener element row
22 slider
23 core rope
24 suture
25 pull tab
26 top stop
27 zipper teeth chain
28 zipper teeth
29 slider
30 zipper tape
31 core part
32 base cloth
33 resin film formation
Detailed Description
Fig. 1 shows a laminated structure of fastener tapes of a slide fastener according to an embodiment of the present invention. The fastener tape 10 includes a base fabric 11 and a resin film 12 bonded to at least one surface of the base fabric 11. The resin film 12 includes: a skin layer 13 formed of a polyurethane film containing metal powder, and an adhesive layer 14 adjacent to the skin layer 13 and formed of a cured product of a crosslinked polyurethane adhesive. That is, the fastener tape 10 includes the adhesive layer 14 on the base fabric 11 side of the skin layer 13, and the adhesive layer 14 bonds the base fabric 11 and the skin layer 13 together. As shown in fig. 1, the fastener tape 10 has a laminated structure in which the skin layer 13, the adhesive layer 14, and the base fabric 11 are laminated in this order from the upper side of the drawing sheet in the cross-sectional view.
(1. base cloth)
As the material of the base fabric 11, natural fibers or synthetic fibers generally used for fastener tapes can be used, and there are no particular limitations on them, and examples thereof include: polyamide fibers, polyester fibers, acrylic fibers, and the like. The base fabric 11 can be produced by weaving or knitting these synthetic fibers. Typically, polyester fibers can be woven or knitted.
(2. adhesive layer)
The adhesive layer 14 is formed using a cured product of a cross-linked polyurethane adhesive. Among the crosslinked polyurethane adhesives, an aqueous polyurethane adhesive is preferable from the viewpoint of improving environmental protection performance. Among these, a two-pack curable aqueous urethane adhesive is preferably used from the viewpoint of heat resistance, solvent resistance, and the like. Here, "aqueous" means that water is used as a dispersion medium. The crosslinked polyurethane adhesive contains polyurethane, an isocyanate compound as a crosslinking agent (curing agent), a dispersant, a polyurethane resin as a thickener, and the like.
The polyurethane used as the main agent is typically in a particulate state, and for example, the polyurethane can be provided in the form of a polyurethane emulsion or a polyurethane dispersion. The polyurethane may use any polyurethane known to those skilled in the art, and is preferably a polyurethane having a hydrophilic group and being a polyether-based polyurethane, a polyester-based polyurethane, a polycarbonate-based polyurethane, or a polycaprolactone-based polyurethane. Among these, polycarbonate polyurethanes having hydrophilic groups are more preferable for reasons of hydrolysis resistance, heat resistance, oil resistance, and abrasion resistance. As the hydrophilic group, cationic, anionic or nonionic hydrophilic groups can be used alone or in combination. Examples of the cationic group include an amino group. Examples of the anionic hydrophilic group include a carboxyl group, a phosphonic acid group, and a sulfonic acid group. Examples of the nonionic hydrophilic group include a polyalkylene oxide group (e.g., a polyethylene oxide group) and a hydroxyl group. Among hydrophilic groups, a carboxyl group is preferable for the reason of reducing environmental load. For anionic hydrophilic groups such as carboxyl groups, it is desirable to neutralize the hydrophilic groups with bases such as triethylamine, ammonia, and 2-amino-2-methylpropanol, from the viewpoint of improving the hydrophilicity of the polyurethane.
The isocyanate compound used as the crosslinking agent (curing agent) may contain aliphatic isocyanate, alicyclic isocyanate, aromatic isocyanate, or a combination thereof. The isocyanate can be selected, for example, from dimers, trimers, isocyanate derivatives, isocyanate prepolymers, blocked isocyanates. Since aromatic isocyanates tend to be yellowed, aliphatic isocyanates, alicyclic isocyanates, or a composition thereof are preferable because they are excellent in discoloration resistance and have a long pot life (also referred to as pot life, a time until the viscosity or state cannot withstand use after mixing a curing agent, a catalyst, or the like with an adhesive). Examples of the aliphatic isocyanate include: ethylene diisocyanate, tetramethylene diisocyanate, hexamethylene diisocyanate, dodecamethylene diisocyanate, 2, 4-trimethylhexane diisocyanate, lysine diisocyanate, 2, 6-diisocyanatomethylhexanoate, isophorone diisocyanate, 1, 4-cyclohexane diisocyanate, 4' -dicyclohexylmethane diisocyanate, bis (isocyanatomethyl) cyclohexane, cyclohexyl diisocyanate, methylcyclohexyl diisocyanate.
The form of the isocyanate compound suitable for the crosslinking type polyurethane adhesive is not particularly limited, and a form dissolved in a semi-aqueous solvent is preferably used. The hemihydrate solvent refers to an organic solvent soluble in water. Examples of the semi-aqueous solvent include glycol ether type (diethylene glycol dimethyl ether, propylene glycol methyl ether, and methoxymethyl butanol), alcohol type (ethanol, isopropanol, and the like), terpene type (d-limonene), and pyrrolidone type (N methyl-2 pyrrolidone), and among them, glycol ether type is preferable from the viewpoint of uniform dispersion.
As the dispersant, water is preferably used in order to reduce environmental load. In the case of using an organic solvent, DMF (N, N-dimethylformamide) is preferably not used in order to reduce environmental load, and the above-mentioned semi-aqueous solvent is more preferably used.
The thickener is an ingredient added for adjusting viscosity, and is preferably contained to the following extent: the crosslinked polyurethane adhesive can be applied to a skin layer (polyurethane in the polyurethane dispersion) to be described later before the skin layer is cured, preferably when the reaction rate of the curing reaction is 50% or less. "before curing" means before the curing reaction is completed and the curing reaction does not proceed any more. Therefore, when the curing reaction proceeds locally, it is also recognized as "before curing" (the same applies hereinafter). The reaction rate of the curing reaction of 50% or less means that the residual rate of isocyanate contained in the crosslinking agent is 50% or more. The residual ratio of isocyanate can be measured by IR measurement (the same applies hereinafter).
The content of the thickener in the adhesive is preferably 0 to 5% by mass, and more preferably 0.5 to 4% by mass. When the amount exceeds 5% by mass, problems arise in film forming property during processing. As the thickener, any known thickener can be used, and a water-soluble thickener is preferably used from the viewpoint of reducing environmental load. Examples of the water-soluble thickener include: natural polymers such as polysaccharides and gelatin, synthetic polymers such as polyoxyethylene and crosslinked poly (meth) acrylic acid, and inorganic minerals such as montmorillonite and silica. Further, the thickener preferably contains a polyurethane resin.
The crosslinked polyurethane adhesive is subjected to vaporization of a solvent and a reaction between the main agent and the curing agent during crosslinking (curing), and the adhesive layer 14 finally obtained is mainly composed of a solid component of the crosslinked polyurethane produced by the curing reaction between the main agent and the curing agent and the thickener. In the adhesive layer 14, if the curing agent is too small relative to the base compound, the adhesive strength is insufficient, and therefore the mass ratio (in terms of solid content) of the curing agent to the base compound is preferably 10 or more, and more preferably 12 or more. However, since too much curing agent hardens and the feeling of the attached fastener tape becomes poor, the mass ratio (in terms of solid content) of the curing agent to the base compound is preferably 25 or less, and more preferably 23 or less.
The thickness of the adhesive layer 14 is preferably 110 μm or more, more preferably 140 μm or more, for the reason of adhesiveness. On the other hand, if the thickness of the adhesive layer 14 is too large, the slider comes into sliding contact when opening and closing the fastener chain, and slidability is impaired, and it is preferably 180 μm or less, and more preferably 170 μm or less.
(3. epidermal layer)
The skin layer 13 can be formed of a polyurethane film containing metal powder. The polyurethane may be either aqueous polyurethane or organic solvent-based polyurethane. The metal powder can be present dispersedly in the film. The aqueous polyurethane film containing a metal powder can be obtained by drying and curing a solution in which polyurethane, typically fine-particle polyurethane, and a metal powder are dispersed in water to obtain an organic solvent-based polyurethane film, and can be obtained by drying and curing a solution in which polyurethane, typically fine-particle polyurethane, and a metal powder are dissolved in an organic solvent. In addition, in any of the aqueous polyurethane and the organic solvent-based polyurethane, a crosslinking agent (curing agent) may be added to a solution in which the polyurethane is dispersed in water or dissolved in an organic solvent to perform a curing reaction. By adding the curing agent, the strength of the film can be improved. Among the crosslinked polyurethanes, two-component curable polyurethane films are preferably used from the viewpoint of affinity with adhesives, heat resistance, solvent resistance, and the like. In addition, it is desirable that any of the aqueous polyurethane and the organic solvent-based polyurethane contains a thickener to increase viscosity and form a paste, and the adhesive is laminated on the polyurethane before curing, preferably when the reaction rate of the curing reaction is 50% or less.
Any polyurethane known to those skilled in the art may be used as the polyurethane, and examples thereof include polyether polyurethane, polyester polyurethane, polycarbonate polyurethane, and polycaprolactone polyurethane. Among these, polycarbonate-based polyurethane is preferable for the reason of the strength of the film itself.
The metal powder is not limited, and examples thereof include: aluminum powder, zinc powder, gold powder, silver powder, copper powder, nickel powder, iron powder, magnesium powder, or alloy powder containing these metals. Among them, aluminum powder is preferable for reasons of durability and product appearance. One kind of metal powder may be used, or two or more kinds may be used in combination. The content of the metal powder in the polyurethane film forming the skin layer (13) is preferably 2.5% by mass or more, more preferably 3% by mass or more, and still more preferably 4% by mass or more in the skin layer, from the viewpoint of imparting a metallic color design. On the other hand, if the content of the metal powder in the polyurethane film forming the skin layer is increased, the following disadvantages occur: the adhesive strength with the adhesive layer is liable to decrease, the abrasion resistance is deteriorated, and further, a wavy shape is observed at the longitudinal side edge of the resin film. Therefore, from the viewpoint of securing the adhesive strength with the adhesive layer, securing the abrasion resistance, and further securing the appearance quality, the mass percentage of the skin layer is preferably 20% or less, more preferably 15% or less, and still more preferably 10% or less.
The metal powder is preferably contained in an amount of 0.6 to 4.0% by mass, more preferably 1.0 to 3.0% by mass, as represented by the content relative to the total mass of the skin layer (13) and the adhesive layer (14) formed by the resin film.
The average particle diameter of the metal powder is preferably 5 μm or more, more preferably 10 μm or more, and further preferably 15 μm or more for the reason of product appearance (brightness). The average particle diameter of the metal powder is preferably 30 μm or less, more preferably 27 μm or less, and still more preferably 25 μm or less for the reason of improving the durable wear resistance or the reason of preventing the occurrence of undulation at the longitudinal side edge of the resin film. In the present invention, the average particle diameter of the metal powder refers to a median particle diameter (D50) on a volume basis when a cumulative distribution of particle diameters is obtained by a laser diffraction/scattering method.
As the crosslinking agent (curing agent), the same isocyanate compound as described in the description of the adhesive layer can be preferably used.
The organic solvent used for the organic solvent-based polyurethane is not particularly limited, but for reducing environmental load, DMF (N, N-dimethylformamide) is preferably not used, and a semi-aqueous solvent as described above is preferably used. Although the use of water is more desirable from the viewpoint of environmental load, it is most preferable to use a semi-aqueous solvent if the adhesive strength when the article is stuck to a material via an adhesive and the durability against sliding of the slider are taken into consideration.
The skin layer 13 preferably contains an organosilicon compound in order to prevent the skin layer from being damaged by sliding of the slider and the skin layer. In order to effectively exhibit durability against sliding, the silicon oxide compound is contained in the skin layer 13 in an amount of preferably 2% by mass or more (in terms of solid content), and more preferably 4% by mass or more. However, if the content of the organosilicon compound is too large, the skin-like layer may become brittle, and therefore the organosilicon compound is contained in the skin-like layer 13 in an amount of preferably 25% by mass or less, more preferably 15% by mass or less. In order to improve the abrasion resistance (durability of reciprocating opening and closing of the slide fastener), at least a part of the organosilicon compound is preferably present in a form copolymerized with the polyurethane constituting the skin-like layer.
The thickness of the skin layer 13 is preferably 20 μm or more, and more preferably 30 μm or more, from the viewpoint of improving the abrasion resistance. On the other hand, if the thickness of the skin layer 13 is too large, the slider comes into sliding contact when opening and closing the slide fastener, and slidability is impaired, and therefore, it is preferably 50 μm or less, more preferably 40 μm or less.
For the reason of obtaining a good appearance, the arithmetic average height Sa of the outer surface of the skin layer 13 is preferably 10 μm or less, more preferably 6 μm or less, and still more preferably 5 μm or less. For the reason of obtaining a matte appearance, the arithmetic average height Sa of the outer surface of the skin layer 13 is preferably 2 μm or more, more preferably 2.5 μm or more, and still more preferably 4 μm or more. In the present invention, the arithmetic mean height Sa is a value measured in accordance with ISO25178 by a noncontact three-dimensional surface texture measuring instrument.
For the reason of obtaining a good appearance, the root mean square height Sq of the outer surface of the skin layer 13 is preferably 13 μm or less, more preferably 7 μm or less, and still more preferably 6 μm or less. For the reason of obtaining a matte appearance, the root-mean-square height Sq of the outer surface of the skin layer 13 is preferably 3 μm or more, more preferably 4 μm or more, and still more preferably 5 μm or more. In the present invention, the root mean square height Sq is a value measured in accordance with ISO25178 by a non-contact three-dimensional surface texture measuring instrument.
(4. sticking of resin film)
An example of the step of attaching the resin film 12 to the base fabric 11 will be described. A polyurethane dispersion containing metal powder as a raw material of the skin layer 13 of the resin film 12 is coated on the release film. It is desirable to coat after sufficiently mixing the metal powder and the polyurethane dispersion liquid so that the metal powder is uniformly dispersed in the skin layer. The surface properties of the outer surface of the skin layer 13 reflect the surface properties of the release film. By preparing a release film having desired surface properties, the surface properties of the outer surface of the skin layer can be controlled. Preferably, the crosslinked polyurethane adhesive is applied to the polyurethane dispersion in a layered manner before the polyurethane in the polyurethane dispersion is cured, preferably when the reaction rate of the curing reaction is 50% or less. The timing of applying the crosslinked polyurethane adhesive may be after curing the polyurethane in the polyurethane dispersion, but by setting the timing before curing the polyurethane in the polyurethane dispersion, the adhesive strength between the adhesive and the skin layer containing the metal powder can be significantly improved.
Next, the base fabric 11 is attached to the crosslinked polyurethane adhesive before the crosslinked polyurethane adhesive is cured (preferably, when the reaction rate of the curing reaction is 50% or less), and desirably, before the polyurethane in the polyurethane dispersion and the crosslinked polyurethane adhesive are cured (preferably, when the reaction rate of the curing reaction of both the polyurethane in the polyurethane dispersion and the crosslinked polyurethane adhesive is 50% or less). It is preferable to apply the adhesive to the substrate while applying heat and pressure. The polyurethane dispersion and the crosslinked polyurethane adhesive are cured while maintaining the state of the base fabric 11, whereby the polyurethane dispersion is changed into a polyurethane film constituting the skin layer 13, and the adhesive becomes a cured product. Thereby, the fastener tape 10 in which the resin film 12 is bonded to the base fabric 11 can be obtained. In the curing, for example, the curing acceleration reaction is performed under the condition that the curing temperature is 40 to 60 ℃ for 48 hours or more to cure the crosslinking adhesive (the step of curing the adhesive), whereby the base fabric 11 and the resin film 12 are firmly bonded.
According to one embodiment of the slide fastener of the present invention, the adhesive strength between the adhesive layer 14 and the skin layer 13 is higher than the adhesive strength between the adhesive layer 14 and the base fabric 11. This can solve the problem of peeling of the skin layer caused by the addition of the metal powder to the skin layer.
(5. embodiment of slide fastener)
Fig. 2 to 4 show an example of a waterproof slide fastener 20 provided with a fastener tape of the present invention. Fig. 2 is a plan view of the entire waterproof slide fastener 20, fig. 3 is a sectional view showing a state in which the element rows 21 are engaged with the slider 22, and fig. 4 is a perspective sectional view of a part of the waterproof slide fastener 20. On one surface of the base fabric 11 of each fastener tape 10, a thread-type spiral element row 21 having a core thread 23 inserted therein is sewn along a side edge of the base fabric 11 by a double-lock stitch 24 of a sewing machine. The spiral element rows 21 can be formed of monofilaments of synthetic resin such as polyamide or polyester. The resin films 12 of the pair of fastener tapes 10 can be bonded to the surface of an article via an adhesive. As another method, the resin film 12 and the fabric can be welded together by high frequency, or the resin film 12 and the fabric can be sewn together. The 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. Hydrophobic processing may also be applied to the sutures 24.
The resin films 12 extend toward the side of the meshing center line a of the element rows with respect to the side edge of the base fabric 11, so that the left and right resin films 12 are easily brought into close contact with each other, and the water repellency is improved. If the side edges of the resin films 12 are extended slightly beyond the meshing center line a of the element rows, the left and right resin films 12 come into close contact with each other when the left and right element rows are meshed, and a higher water resistance can be obtained.
When the slide fastener 20 according to the present embodiment is used, it is preferable that the slide fastener is attached to an attachment object so that the side to which the resin film 12 is attached is an outer surface and the side of the element row 21 is an inner surface. The pull tab 25 of the slider 22 can be attached to the outer surface side. As shown in fig. 2, the upper stopper 26 may be provided, and although not shown, a lower stopper, an opening/closing insert, or the like may be attached.
Fig. 5 and 6 are partial schematic views showing a waterproof slide fastener according to another embodiment of the present invention. Specifically, fig. 5 shows a part of a fastener stringer 27 constituting the waterproof slide fastener according to the present embodiment, and fig. 6 is a cross-sectional view showing a state where left and right fastener elements 28 are engaged with each other inside a slider 29 in the slide fastener according to the present embodiment.
In the present embodiment, as shown in fig. 5 and 6, the fastener element 28 is injection-molded so as to sandwich the entire core portion 31 formed at the end edge of the fastener tape 30 from both front and back sides. The slider 29 is shown by a virtual line indicated by a one-dot chain line. The fastener tape 30 is formed by attaching a resin film 33 to the outer surface of a base fabric 32. As shown in fig. 6, when the fastener elements 28 are engaged, the tip ends (the end portions facing the other fastener tape) of the fastener elements 28 come into close contact with the other fastener tape 30, thereby exhibiting waterproofness.
(examples)
For a better understanding of the invention and its advantages, the following examples are set forth, but the invention is not limited to these examples.
(verification of influence exerted by content of aluminum powder)
(1. preparation of resin film)
The materials used in each example are as follows.
(A) Epidermal layer
Polycarbonate-based polyurethane: "RESAMINE" (レザミン in Japanese) NES series manufactured by DARI INDUSTRIAL CO., LTD
(obtained by dissolving polycarbonate polyurethane in an organic solvent; a crosslinking agent is added to the solution to form a skin-like layer having a three-dimensional structure)
Aluminum powder: average particle diameter of SEIKASEVEN (セイカセブン in Japanese) manufactured by Dari chemical industries Co., Ltd.: 30 μm)
Crosslinking agent (isocyanate compound): x series (aliphatic isocyanate in glycol ether solvent) under the trade name "RESAMINE" manufactured by DARI INDUSTRIAL CO
(B) Adhesive layer
Two-pack curable adhesive: dari refining Industrial Corp, product name "RESAMINE" UD series
(polycarbonate polyurethane dissolved in toluene, methyl ethyl ketone and ethyl acetate mixed solvent, through the solution with a crosslinking agent, formed with three-dimensional structure of excellent adhesive)
A crosslinking agent: dari refining industries, Inc. product name "RESAMINE" D series (aliphatic isocyanate in glycol ether solvent)
Thickening agent: dari refining industries, product name "RESAMINE" D series (synthetic polymer of crosslinked poly (meth) acrylic acid)
Each fastener tape was produced by the following procedure using the above-described material.
The material of the skin layer is as follows: crosslinking agent 100: 3 to prepare a skin layer forming paste, and then the paste was applied to a release film (engineering paper manufactured by Lintec Corporation, Lindebacae). At this time, the content of the aluminum powder in the skin layer forming paste was changed according to the test number, thereby changing the content of the aluminum powder in the skin layer.
Next, the material of the adhesive layer was cured as a two-pack curable adhesive: a crosslinking agent: thickener 100: 10: 1 was sufficiently mixed and applied to the skin layer before curing (the reaction rate of the curing reaction was 50% or less). Before the surface layer and the adhesive layer are cured (the reaction rate of the curing reaction of the surface layer and the adhesive layer is 50% or less), a fastener tape of a base fabric woven from a polyester yarn is bonded to the adhesive layer by heating and pressing with a roller. Then, a curing reaction is carried out at a curing temperature of 40 to 60 ℃ for 48 hours or more. Thus, a fastener tape to which a resin film is attached is produced.
(2. content of aluminum powder)
The fastener tapes obtained in the above-described steps were measured for the content of aluminum powder in the surface layer and the resin film by an internal standard method using an ICP-OES (inductively coupled plasma optical emission spectrometer) manufactured by shimadzu corporation. The test sample was prepared by adding an acid to the zipper tape and decomposing the resulting mixture with a microwave. The amount of aluminum in the skin layer is determined based on the thicknesses of the skin layer and the adhesive layer. Specifically, when the content of aluminum powder in the resin film is X% by mass and the thicknesses of the skin layer and the adhesive layer are a μm and B μm, respectively, the content of aluminum powder in the skin layer is calculated by the formula XA/(a + B). The results are shown in Table 1. In the present embodiment, the densities of the resin components of the skin layer and the adhesive layer are substantially the same, and the coverage areas of the skin layer and the adhesive layer are also substantially the same, so the above calculation formula is used.
(3. peeling test)
The resin film side of the fastener tape obtained in the above-described step was attached to a polyester fabric via a hot melt adhesive, and then the fastener tape was peeled off from the fabric using an instron tensile tester. The peel test was conducted under a condition that a tensile rate was 50m m/min, and 180 DEG peel was conducted (JIS-K-6854-3). In addition to the adhesion strength, it was confirmed whether the peeling interface was between the adhesive layer and the base fabric or between the adhesive layer and the skin layer.
When the adhesive strength exceeded 15N/cm, the evaluation was "good", and when the value was not more than this, the evaluation was "x".
The evaluation was "o" in the case where the peeling interface was between the adhesive layer and the base fabric, and "x" in the case where the peeling interface was between the adhesive layer and the skin layer.
The results are shown in table 1.
(4. reciprocating open/close durability test)
A waterproof slide fastener such as shown in fig. 2 was assembled using the fastener tape obtained in the above-described procedure, and a reciprocating opening and closing durability test was performed by sliding the slider 1000 times to visually check whether or not there was an abnormality in the appearance of the skin layer (damage to the skin layer). The moving distance of the slider per 1 sliding of the slider was set to 50 mm. The evaluation of the wear resistance was x when an abnormality could be clearly found visually after the test, Δ when a portion which could be evaluated as abnormal was found in a part of the test piece which was almost free from abnormality but was not found, and o when no abnormality was found, and the test results are shown in table 1.
(5. surface appearance)
The "appearance (shape)" was evaluated based on the shape of the longitudinal side edge of the resin film obtained in the above-described procedure, the "appearance (color)" was evaluated based on the value of the color difference of the surface layer of the fastener tape, and the "brightness" was evaluated based on the trigger value of the gloss meter.
The "appearance (shape)" was evaluated by visual observation based on the following criteria.
O: the undulation shape was hardly observed at the longitudinal side edge of the resin film.
And (delta): the resin film was partially observed in undulation at the longitudinal side edge.
X: a large number of undulation shapes were observed at the longitudinal side edge of the resin film.
The evaluation criteria for "appearance (color)" are as follows. Although a conventional spectrophotometer can be used, CM-3700d manufactured by Konica Minolta (Konica Minolta) is used here.
O: Δ E (CMC) within 5.0
And (delta): Δ e (cmc) exceeding 5.0 and falling within 6.0
X: case where Δ e (cmc) exceeds 6.0
The evaluation criteria for "brightness" are as follows. Although a conventional gloss meter can be used, CM-M6 manufactured by Konica Minolta (Konica Minolta) is used here.
O: trigger value is more than 9.0
And (delta): the trigger value is 7.0 or more and less than 9.0
X: trigger value less than 7.0
The results are shown in table 1.
(Table 1)
(II. verification of influence exerted by average particle diameter of aluminum powder)
A slide fastener was produced by the same procedure as in test No. 4 except that the average particle diameter of the aluminum powder in the skin layer was changed under the conditions shown in table 2. The obtained slide fastener was subjected to the same peel test and the same reciprocating opening and closing durability test as described above. The surface appearance was evaluated in the same manner as in the previous case. The results are shown in table 2.
(Table 2)
(III. verification of the Effect exerted by the surface Properties of epidermal layer)
A slide fastener was produced by the same procedure as in test No. 4 except that the surface properties of the outer surface of the skin-like layer were changed under the conditions shown in tables 3 and 4 by variously changing the surface properties of the release film in the relief pattern and the depth. The obtained slide fastener was measured for the arithmetic mean height Sa or the root mean square height Sq of the outer surface of the skin layer by a noncontact three-dimensional surface texture measuring instrument manufactured by Canon corporation in accordance with ISO 25178. The surface appearance was evaluated in the same manner as in the previous case. The results are shown in tables 3 and 4.
(Table 3)
(Table 4)
(IV. verification of influence exerted by the kind of adhesive)
A slide fastener was produced by the same procedure as in test No. 4 except that the adhesive was changed to a commercially available hot-melt adhesive to produce an adhesive layer forming paste. The obtained slide fastener was subjected to the same peel test and the same reciprocating opening and closing durability test as described above. Further, a heat resistance test under hot press at 120 ℃ for 30 seconds was performed. The evaluation was "o" when the resin film was not deviated from the position of attachment to the fastener tape, and "x" when the resin film was deviated from the position of attachment to the fastener tape. The results are shown in Table 5.
(Table 5)
Claims (12)
1. A fastener tape having a laminated structure, comprising base fabrics (11, 32) and resin films (12, 33) formed on at least one surface of the base fabrics (11, 32), wherein the fastener tape (10) is characterized in that:
the resin films (12, 33) are provided with: a skin layer (13) formed from a polyurethane film containing 2.5-20% by mass of metal powder (15); and an adhesive layer (14) which is adjacent to the skin layer (13) and is formed from a cured product of a cross-linked polyurethane adhesive;
the bonding strength between the bonding layer (14) and the skin layer (13) is higher than the bonding strength between the bonding layer (14) and the base fabrics (11, 32).
2. The fastener strip of claim 1, wherein:
the polyurethane film forming the skin layer (13) contains 3-15% by mass of metal powder.
3. The fastener tape of claim 1, wherein:
the resin film contains 0.6-4.0% by mass of metal powder in the total mass of the skin layer (13) and the adhesive layer (14).
4. The fastener strip of claim 2, wherein:
the resin film contains 0.6-4.0% by mass of metal powder in the total mass of the skin layer (13) and the adhesive layer (14).
5. The fastener tape according to any one of claims 1 to 4, wherein:
the average particle diameter of the metal powder (15) is 5 to 30 μm.
6. The fastener tape according to any one of claims 1 to 4, wherein:
the arithmetic average height Sa of the outer surface of the skin layer (13) is 10 [ mu ] m or less.
7. The fastener tape according to any one of claims 1 to 4, wherein:
the arithmetic average height Sa of the outer surface of the skin layer (13) is 6 [ mu ] m or less.
8. The fastener tape according to any one of claims 1 to 4, wherein:
the root mean square height Sq of the outer surface of the skin layer (13) is 13 [ mu ] m or less.
9. A slide fastener, characterized in that:
the fastener tape according to any one of claims 1 to 8.
10. The method for producing a fastener tape according to any one of claims 1 to 8, comprising:
coating a polyurethane dispersion containing metal powder on a release film;
a step of applying a cross-linked polyurethane adhesive to the polyurethane dispersion before or after the polyurethane in the polyurethane dispersion is cured;
a step of bonding a base fabric (11, 32) to the cross-linked polyurethane adhesive before the cross-linked polyurethane adhesive is cured; and
curing the uncured polyurethane in the presence of the uncured polyurethane in the cross-linked polyurethane adhesive and the polyurethane dispersion.
11. The method of manufacturing a fastener tape according to claim 10, wherein:
the cross-linked polyurethane adhesive is a two-pack curing type.
12. The method of manufacturing a fastener tape according to claim 11, wherein:
the polyurethane dispersion liquid containing the metal powder contains a two-liquid curing polyurethane.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2017/016087 WO2018193632A1 (en) | 2017-04-21 | 2017-04-21 | Fastener tape, slide fastener with fastener tape, and method for manufacturing fastener tape |
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| Publication Number | Publication Date |
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| CN110494058A CN110494058A (en) | 2019-11-22 |
| CN110494058B true CN110494058B (en) | 2022-07-12 |
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| CN201780089450.4A Active CN110494058B (en) | 2017-04-21 | 2017-04-21 | Fastener tape, slide fastener provided with same, and method for manufacturing fastener tape |
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| Country | Link |
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| CN (1) | CN110494058B (en) |
| TW (1) | TWI641338B (en) |
| WO (1) | WO2018193632A1 (en) |
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| CN109846149A (en) * | 2019-04-01 | 2019-06-07 | 林文静 | A kind of tooth chain band and zipper |
| DE112021007744T5 (en) * | 2021-06-02 | 2024-04-11 | Dainichiseika Color & Chemicals Mfg. Co., Ltd. | STRAP AND ZIPPER |
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| CN106136486A (en) * | 2015-04-14 | 2016-11-23 | Ykk株式会社 | Glued component sticker and glued component method of attaching |
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- 2017-04-21 CN CN201780089450.4A patent/CN110494058B/en active Active
- 2017-04-21 WO PCT/JP2017/016087 patent/WO2018193632A1/en active Application Filing
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| CN103338672A (en) * | 2011-01-26 | 2013-10-02 | Ykk株式会社 | Zipper chain with bottom stop and production method for said zipper chain |
| CN106136486A (en) * | 2015-04-14 | 2016-11-23 | Ykk株式会社 | Glued component sticker and glued component method of attaching |
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| TW201838539A (en) | 2018-11-01 |
| TWI641338B (en) | 2018-11-21 |
| WO2018193632A1 (en) | 2018-10-25 |
| CN110494058A (en) | 2019-11-22 |
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