JP5916115B2 - Combination of cloth hook-and-loop fastener - Google Patents

Description

  The present invention is a combination of a cloth hook surface fastener and a loop surface fastener, in which the engagement elements are made of polyester fibers, and an excellent engagement force can be obtained by engaging both engagement elements. Further, the present invention relates to a combination of hook-and-loop fasteners having superior durability.

  Conventionally, as a combination of cloth surface fasteners, a hook surface fastener (A) having a monofilament hook-like engagement element on the surface of a base fabric, and a multifilament loop that can be engaged with the hook-like engagement element A combination of loop hook-and-loop fasteners (B) having a surface-like engaging element on the surface of the base fabric is widely known, and is sold in the market in a bag with both of them engaged. Widely used in many fields such as shoes, hats, belts, supporters, pillow covers, bag bags, blood pressure monitors, other daily goods, binding tape, packing materials, civil engineering and construction materials, agricultural and fishery materials, toys, etc. It has been.

  Such hook surface fasteners (A) and loop surface fasteners (B) are generally used as hook-like engaging elements when manufacturing a base fabric made of ground warp and ground weft. The monofilament is driven into the base fabric parallel to the ground warp, and after that, the monofilament is projected on the base fabric in the form of a loop, and then the loop shape is fixed by heat. The loop hook-and-loop fastener (B) is driven by a multi-filament to be a loop-shaped engagement element in parallel with the ground warp thread, and the multi-filament is projected in a loop shape on the base fabric. Each of them is manufactured by a method of using an engaging element.

These hook surface fasteners (A) or loop surface fasteners (B) are mainly composed of ground warp yarns, ground weft yarns, hook-like engagement element monofilaments or loop-like engagement element multifilaments, as described above. However, as these ground warp yarn, ground weft yarn, monofilament for hook-like engagement element, multifilament for loop-like engagement element, conventionally, nylon 6, nylon 66, nylon 610, copolymers mainly composed of these, etc. A fiber made of a polyamide polymer is generally used. However, when a polyamide fiber is used, the shape of the base fabric changes due to water absorption and moisture absorption. As a result, there is a serious problem that the quality and high-quality feeling of the product to which the hook-and-loop fastener is attached are impaired, and the most important engagement force as the hook-and-loop fastener is not necessarily high.
Furthermore, today, clothing is mainly manufactured from polyester fibers, but when the hook-and-loop fastener to be attached to it is made of polyamide, the dyeing properties of the two are completely different, so that both have the same dyeing conditions. It is difficult to dye with, and in order to align the color tone of both, there is a problem that a large number of hook-and-loop fasteners having the color tone of the final product must be prepared in advance.

  As a technology for solving the problems when using such polyamide-based fibers, recently, polyester-based polymers such as polyethylene terephthalate and polybutylene terephthalate having low water absorption and hygroscopicity, or copolymers based on these are used. There are also documents that describe the use of polyester fibers for hook-and-loop fasteners.

  For example, in Patent Document 1, as a fiber constituting an engaging element constituting a hook-and-loop fastener and a woven or knitted fabric in which these are present, in addition to a synthetic fiber made of a polyamide-based polymer such as nylon 6, nylon 66, nylon 610, polyethylene It is described that a synthetic fiber made of a polyester polymer such as terephthalate, polybutylene terephthalate, and a copolymer containing these as a main component can also be used.

  Further, Patent Document 2 includes fibers made of polyesters such as polyethylene terephthalate and polybutylene terephthalate in addition to fibers made of polyamides such as nylon 6 and nylon 66 as fibers constituting the base fabric of the hook-and-loop fastener. Further, it is described that nylon or polyester monofilament is preferable for the hook-like engaging element, and nylon or polyester multifilament is preferable for the loop-like engaging element.

  The present inventors do not have the major disadvantage that the surface fastener is wavy due to water absorption / moisture absorption, which is a major problem when using polyamide-based fibers, and are the same as the main fibers constituting today's clothing As a result of research on hook-and-loop fasteners made from polyethylene fibers, when multifilaments made of polyethylene terephthalate polyester were used as loop-type engaging element yarns for loop hook-and-loop fasteners, As a result, there is a problem that the engagement force does not increase, and the touch is not necessarily suitable for applications that require a firm feel and a soft feel such as clothing and daily goods. I found out. In addition, when a monofilament made of polybutylene terephthalate polyester is used as a thread for a hook-like engagement element of a hook surface fastener, even if a loop thread is engaged with the hook-like engagement element, the hook can be pulled with low tension. It was found that it was opened and disengaged, resulting in insufficient engagement force.

  Furthermore, in the conventional hook-and-loop fastener, an adhesive (so-called back coat resin) is applied to the back surface of the base fabric so that the hook-like engagement element and the loop-type engagement element are not pulled out from the base fabric due to the tension at the time of engagement and separation. Apply and fix the engagement element thread to the base fabric to obtain the pull-out resistance of the engagement element. However, when adhesive is applied to the back of the base fabric, the base fabric is hardened with adhesive. Therefore, it becomes rigid and is not suitable for the clothing field that requires flexibility. A heat-sealable fiber is used as a fiber constituting the surface fastener, and the heat-sealable fiber is melted to melt the engagement element fiber in the base fabric, thereby improving the pull-out resistance of the engagement element. Although the technology is also well known (Patent Document 3), when a polyamide fiber is used as the fiber constituting the base fabric, the polyamide fiber is inferior in heat resistance, and the fiber performance is increased by heat fusion treatment. Will be reduced.

  Furthermore, the hook surface fastener and the loop surface fastener are manufactured by the same company, and the commercially available combination of surface fasteners is that the hook-like engagement element and the loop-like engagement element are made of the same resin. It is. That is, when a nylon 6 monofilament is used as the hook-like engagement element, a nylon-like multifilament is used as the loop-like engagement element to be paired therewith, and the hook-like engagement element When a monofilament made of polyethylene terephthalate is used, a multi-filament made of polyethylene terephthalate is used as the loop-shaped engaging element paired therewith.

  The reason for this is that the hook surface fastener and the loop surface fastener are manufactured by the same company, and the objects to which the hook surface fastener and the loop surface fastener are attached are usually the same. Are required to have the same dyeability, and the engaging force of the hook-and-loop fastener is the thickness of the monofilament constituting the hook-like engaging element, the number of multifilaments constituting the loop-like engaging element, and Since it can be freely changed to some extent by changing the engaging element density, etc., conventionally, the type of resin is changed between the monofilament constituting the hook-like engaging element and the multifilament constituting the loop-like engaging element. It is presumed that it was not reached.

Japanese Patent Laid-Open No. 2002-238621 Paragraph 0027 JP 2002-223817 A 0007 paragraph and 0008 paragraph International Publication WO2005 / 12281 Pamphlet Claims

  The present invention does not have the above-mentioned problems, that is, has a high engagement force, the surface fastener does not wave due to moisture absorption or water absorption, has substantially the same dyeability, and Preferably, the hook-shaped engagement element and the loop-shaped engagement element are firmly fixed to the base fabric by heat fusion, and excellent engagement durability, that is, low decrease in engagement force even by repeated engagement peeling. Another object of the present invention is to provide a combination of a hook surface fastener and a loop surface fastener, in which the base fabric is flexible because there is no back coat resin layer.

That is, the present invention relates to a hook surface fastener (A) having a hook-like engagement element made of monofilament on the surface of a base fabric made of ground warp, ground weft, and hook-like engagement element yarn , and the hook-like engagement element. In a combination of loop hook-and-loop fasteners (B) having loop-like engagement elements made of multifilaments that can engage with the combination elements on the surface of a base fabric made of ground warp yarn, ground weft yarn and yarns for loop-like engagement elements The monofilament is formed from a polyethylene terephthalate polyester resin, and the multifilament is formed from a polybutylene terephthalate polyester resin.

Preferably, in the present invention, in the combination of the above-described cloth surface fasteners, the ground warp yarn and the weft yarn constituting the base fabric of the hook surface fastener (A) and the loop surface fastener (B) are both made of polyester resin. a thread is formed, and該地weft comprises heat-fusible fibers of core-sheath type, further the base of the hook-shaped engaging elements and loop-like engaging elements, the該地weft constituting the base fabric a case which is by Ri fixed to sheath component resin.

More preferably, according to the present invention, in the combination of the above-described cloth surface fasteners, the multi-filament constituting the loop-shaped engagement element of the loop surface fastener (B) has a total decitex of 5 to 15 filaments of 150 to 300 decitex. And the monofilament constituting the hook-like engagement element of the hook surface fastener (A) is a monofilament yarn having a diameter of 0.13 to 0.40 mm, and the hook surface This is a case where the density of hook-like engagement elements of the fastener (A) is 20 to 120 pieces / cm ² , and the density of loop-like engagement elements of the loop surface fastener (B) is 20 to 120 pieces / cm ² . Is the case.
Also preferably, in the present invention, the base fabric constituting the hook surface fastener (A) and the base fabric constituting the loop surface fastener (B) are integrated with the surface having the engaging element on the outside. It is a combination of cloth surface fasteners.

  In the combination of the cloth surface fastener of the present invention, since the multifilament constituting the loop-shaped engagement element of the loop surface fastener (B) is composed of a polybutylene terephthalate polyester, the loop-shaped engagement element is easily broken. As a result, it is easy to engage with the hook-shaped engaging element of the hook surface fastener (A), and the monofilament constituting the hook-shaped engaging element of the hook surface fastener (A) is a rigid polyester of polyethylene terephthalate type. Therefore, the loop hook-and-loop fastener (B) is unlikely to come off from the loop-like engaging element and is not easily collapsed, and a high engaging force can be obtained from this point.

Preferably, since the ground weft and the ground warp constituting the base fabric are both polyester fibers, when the weft is melted, both the hook-like engagement elements and the loop-like engagement elements are polyester fibers. Therefore, it is firmly fused to the base fabric, and the engaging element is not pulled out of the base fabric even by repeated engagement and release, and an excellent and durable engaging force can be obtained forever.
In addition, since the hook-shaped engagement element, the loop-shaped engagement element, the ground warp and the ground weft constituting the hook surface fastener (A) and the loop surface fastener (B) are both polyester fibers, polyamide fibers As described above, there is no possibility that the fiber performance is greatly deteriorated due to heat deterioration during heat fusion, and the hook-and-loop fastener undulates due to water absorption and moisture absorption.

In addition, both the hook surface fastener (A) and the loop surface fastener (B) constituting the present invention are free from the need to apply an adhesive (back coat resin) for fixing the engaging element to the back surface. Since it has the advantage that the fastener is flexible and the gloss is beautiful, it can be used as a button substitute in the field of clothing requiring flexibility and a beautiful gloss.
Furthermore, since almost all the fibers that make up the hook-and-loop fastener are polyester-based fibers, when dyed, they can be dyed almost uniformly in the same dyeing process. The problem of uneven color generation does not occur.

  First, the hook surface fastener (A) constituting the present invention is mainly composed of a monofilament for hook-like engagement element, ground warp and ground weft, while the loop surface fastener (B) of the mating partner is mainly loop-shaped. It is formed from multi-element filaments, ground warp and ground weft.

  The hook-shaped engaging element constituting the hook hook-and-loop fastener (A) is required to have a so-called hook shape retaining property in which the hook shape is not extended by rigidity and light force. For this purpose, a monofilament made of a thick synthetic fiber is used. In the present invention, a monofilament formed from a polyethylene terephthalate polyester having excellent hook shape retention is used as the monofilament.

Polyethylene terephthalate-based polyester is a polyester mainly composed of ethylene terephthalate units, and is a polyester mainly obtained by a condensation reaction from terephthalic acid and ethylene glycol. Some polymer units other than terephthalic acid and ethylene glycol are added. It may be. Representative examples of such polymerized units include aromatic dicarboxylic acids such as isophthalic acid, sodium sulfoisophthalate, phthalic acid and naphthalenedicarboxylic acid, aliphatic dicarboxylic acids such as adipic acid and sebacic acid, propylene glycol, butylene glycol and the like. Diols, hydroxybenzoic acid, oxycarboxylic acid such as lactic acid, monocarboxylic acid represented by benzoic acid, and the like. Furthermore, a small amount of other polymers may be added to the polyethylene terephthalate polyester. Preferably, it is formed from a polyethylene terephthalate homopolymer. In any case, polyethylene terephthalate-based polyester having a melting point at which the monofilament does not melt at the heat treatment temperature described later must be the main component constituting the monofilament.
The monofilament constituting the hook-like engagement element is high in rigidity because it is a polyethylene terephthalate-based polyester. Among them, the Young's modulus is 80 to 140 cN / dtex. This is preferable in that a high engagement force can be obtained.

  The thickness of such a monofilament for hook-like engagement element made of polyester is preferably 0.13 to 0.40 mm in diameter, and more preferably in the range of 0.18 to 0.35 mm in diameter. This thickness is slightly larger than the thickness of the hook-shaped engaging element of the conventional general hook-and-loop fastener, but this thickness is a combination of the hook hook-and-loop fastener (A) and the loop hook-and-loop fastener (B) described later. High engagement force.

  Next, in the present invention, the loop-like engaging element constituting the loop surface fastener (B) is a multifilament yarn made of polybutylene terephthalate-based polyester. The polybutylene terephthalate-based polyester is a polyester mainly composed of butylene terephthalate units, and is mainly a polyester obtained by a condensation reaction from terephthalic acid and 1,4-butanediol. -Polymerized units other than butanediol may be added. Representative examples of such polymerized units include aromatic dicarboxylic acids such as isophthalic acid, sodium sulfoisophthalate, phthalic acid and naphthalenedicarboxylic acid, aliphatic dicarboxylic acids such as adipic acid and sebacic acid, ethylene glycol, propylene glycol, etc. Diols, hydroxybenzoic acid, oxycarboxylic acid such as lactic acid, monocarboxylic acid represented by benzoic acid, and the like. Furthermore, a small amount of other polymers may be added to the polybutylene terephthalate-based polyester.

As such a multifilament for loop-shaped engagement element made of polyester, a multifilament yarn having a total decitex of 5 to 15 filaments of 150 to 300 dtex is preferable. When the loop-like engagement element is fused and fixed by the wefts constituting the base fabric, if the number of multifilaments constituting the loop-like engagement element is large, filaments that are not fusion-fixed are generated, and the engagement is peeled off. Is repeated, it is preferable to reduce the number of filaments constituting the loop engagement element in order to obtain excellent engagement durability. The number of filaments of the multi-filament for loop-shaped engagement element to be configured is slightly lower than the number of filaments of the multi-filament constituting the loop-shaped engagement element generally used in the past. More preferably, it is a multifilament whose total decitex composed of 5 to 10 filaments is 150 to 280 decitex. In the present invention, a small number of other filament yarns may be aligned from the polybutylene terephthalate polyester to the multifilament in the multifilament constituting the loop-shaped engagement element.
The fact that the number of filaments of the loop-like engagement element is reduced means that the hook-like engagement element is less likely to be caught. When polyethylene terephthalate polyester is used for the loop-like engagement element, the rigidity is high. The high Young's modulus makes it easy to focus the filaments, so high strength cannot be obtained when they are engaged with a light load, and the filaments of the loop-like engagement element are separated using a technique such as rubbing lightly with a cloth. I have to make it happen. In the present invention, it is important that the multi-filament of the loop-shaped engagement element is composed of a polybutylene terephthalate-based polyester. In particular, the Young's modulus is 15 to 35 cN / dtex, and the flexible property is loop-shaped. It is preferable in that the filament of the engaging element is easily broken, and the hook-shaped engaging element is easily caught on the filament of the loop-shaped engaging element, and high strength can be obtained even with a light load.

In the present invention, the height of the hook-shaped engaging element of the hook surface fastener (A) from the base fabric surface is 1.3 to 3.0 mm, and the base of the loop-shaped engaging element of the loop-shaped engaging element (B) The height from the cloth surface is preferably 1.8 to 3.5 mm. In the present invention, the density of the hook-like engaging elements of the hook surface fastener (A) is preferably 20 to 120 pieces / cm ² , and particularly preferably 30 to 60 pieces / cm ² . And as the density of the loop-like engaging element of the loop surface fastener (B), it is preferably 20 to 120 pieces / cm ² multifilament units, particularly preferably 30 to 60 pieces / cm ^2.

  In the present invention, the monofilament constituting the hook-like engaging element of the hook surface fastener (A) and the multifilament constituting the loop-like engaging element of the loop surface fastener (B) are both inserted into the base fabric in parallel with the ground warp. In the case of a hook-like engagement element, the ground warp is straddled in some places, and a loop is formed in the straddled place, and the hook is directed in a direction inclined from the ground warp direction, whereas in the case of a loop-like engagement element, It is preferable to form a loop substantially parallel to the ground warp without straddling the ground warp from the viewpoint that the hook-shaped engagement element is easily caught by the loop-shaped engagement element.

  Then, heat is applied to the hook surface fastener fabric to fix the loop shape. In the combination of the hook-and-loop fasteners of the present invention, heat applied to fix the loop shape is simultaneously fused to the heat-fusible fiber constituting the base fabric, and the loop-like engagement element and the hook-like engagement element are used as the base. It will be fixed to the cloth. Therefore, as the temperature of the applied heat, 150 to 250 ° C., which is a temperature at which the heat-fusible fiber melts and the temperature at which the hook-like engagement element monofilament is heat-fixed, is generally used, and more preferably. Is in the range of 185-220 ° C.

  In the hook hook-and-loop fastener (A), the hook-like engagement element loop is cut into the one leg side portion of the loop leg portion to form a hook-like engagement element. The cutting device used for cutting one side of the hook-like engagement element loop to form the hook-like engagement element is a hook-like engagement element of a hook hook-and-loop fastener cloth that runs in the ground warp direction. It is preferable that one leg of the loop is cut between two fixed blades by a reciprocating motion of the movable cutting blade. For this reason, the loop for the hook-shaped engagement element is grounded as described above. It is preferable to form at a place straddling the warp because only one leg of the loop can be easily cut.

  Next, in the combination of the hook hook-and-loop fastener (A) and the loop hook-and-loop fastener (B) of the present invention, it is preferable to use a polyester-based multifilament yarn as the ground warp yarn constituting the base fabric. In particular, a polyethylene terephthalate-based multifilament yarn excellent in heat resistance is preferable. Of course, some copolymer components and other polymers and other filaments may be included, but the ground warp yarn is a process in producing a hook-and-loop fastener because it is continuously present in the length direction of the hook-and-loop fastener. Since it is a yarn that brings about stability, it is preferably a yarn that undergoes little change in shrinkage or the like under heat treatment conditions. Therefore, it is more preferably formed from a homopolymer of polyethylene terephthalate.

  The thickness of the multifilament constituting the ground warp is preferably a multifilament having a total decitex of 16 to 96 filaments of 75 to 250 dtex, and particularly a total decitex of 24 to 48 filaments of 100 to 200. Multifilaments that are decitex are preferred. And a base fabric is comprised so that it may become 45-90 piece / cm as the weave density after heat processing of such a multifilament yarn.

  Note that the monofilament constituting the hook-like engaging element and the multifilament constituting the loop-like engaging element are driven into the base fabric in parallel with the ground warp yarn as described above. The number of hook-type engagement element monofilaments and loop-type engagement element multifilaments to be driven is 20 after the heat treatment described later (hook-type engagement element monofilament or loop-type engagement element multifilament). 3 to 8 are preferable.

  Finally, as the ground weft used for the base fabric of the hook-and-loop fastener constituting the combination of the present invention, the hook-like engagement element monofilament and the loop-like engagement element multifilament are thermally fused under the above heat treatment conditions. What consists of polyester-type resin which can fix a root firmly to a base fabric is preferable. For example, a polyester-based fiber having a core-sheath type cross section in which the core component does not melt under heat treatment conditions but the sheath component melts can be cited as a suitable example. Specifically, a core having polyethylene terephthalate as a core component and a copolymer component represented by isophthalic acid, adipic acid, or the like in a large amount, for example, 20-30 mol% copolymerized polyethylene terephthalate is used as a sheath component. A sheath type polyester fiber is a typical example. The melting point or softening point of the sheath component is preferably 100 to 200 ° C. and is preferably 20 to 150 ° C. lower than the melting point of the ground warp, the hook-like engagement element monofilament, or the loop engagement element multifilament.

  The ratio of the heat fusibility in the fibers constituting the weft yarn is the hook-like engagement particularly when all the weft yarns are substantially formed of the core-sheath type heat fusible fiber. Both the element and the loop-shaped engaging element are preferable because they are firmly fixed to the base fabric. When all of the fibers are formed of a heat-fusible polymer, the heat-fusible polymer that has been melted and solidified again becomes brittle and easily breaks, and when sewing is performed, the base fabric is liable to tear from the sewing thread portion. Therefore, the heat-fusible fiber preferably contains a resin that is not heat-sealed, and preferably has a cross-sectional shape of a core-sheath. And the weight ratio of a core component and a sheath component has the preferable range of 20: 80-80: 20.

  Furthermore, in order to firmly fix both the hook-like engagement element and the loop-like engagement element to the base fabric, the heat-fusible fiber used as the ground weft is thermally fused, and the fiber itself contracts. The bases of the hook-like engagement element and the loop-like engagement element are preferably tightened from both sides, and for this purpose, the heat-fusible fiber used as the ground weft is preferably a fiber that undergoes large thermal shrinkage under heat treatment conditions. Specifically, a fiber having a dry heat shrinkage of 8 to 20% when heated at 200 ° C. for 1 minute is suitably used, and a fiber having a shrinkage of 11 to 18% is particularly preferred.

  As the thickness of the multifilament constituting the weft yarn, a multifilament having a total decitex of 24 to 72 filaments of 75 to 300 dtex is preferable, and a total decitex of 24 to 48 filaments is particularly 75. Multifilaments that are ~ 200 dtex are preferred. And it is preferable to drive such a multifilament yarn into a base fabric so that the weave density after heat treatment is 15 to 30 yarns / cm. The weight ratio of the ground weft is preferably 15 to 40% with respect to the total weight of the hook-like engagement element monofilament or loop-like engagement element multifilament, the ground warp and the weft constituting the surface fastener.

  As described above, the present invention is suitable for a hook-and-loop fastener that does not apply an adhesive (so-called back coat resin) to the back surface of the base fabric as in the prior art by thermally fusing the base fabric constituent fibers. It can also be applied to a hook-and-loop fastener that applies an adhesive to the back side of the base fabric. In this case, the ground weft constituting the base fabric does not have to be heat-fusible, and further, the base fabric constituting the base fabric. The warp and the weft need not be polyester. However, from the viewpoint of dyeability, it is preferable that both the ground warp and the weft constituting the base fabric are polyester yarns, and the weft constituting the base fabric is made of a heat-fusible binder fiber. .

  The woven structure of the base fabric is preferably a plain weave with a monofilament for hook-like engagement elements and a multifilament for loop-like engagement elements as part of the ground warp, and these engagement element yarns exist in parallel to the ground warp. However, in the case of the hook surface fastener (A) in the middle of the structure, in the case of the hook surface fastener (A), in a woven structure that jumps between 1 to 3 ground warps while forming a loop and wraps between the ground warps, In the case of the loop hook-and-loop fastener (B), the woven structure existing in parallel to the ground warp without straddling the ground warp can cut the one leg side of the loop for the hook-shaped engagement element, This is preferable because the loop-shaped engaging element is easily engaged.

  In the combination of the hook surface fastener (A) and the loop surface fastener (B) of the present invention, the base fabric constituting the hook surface fastener (A) and the base fabric constituting the loop surface fastener (B) each have an engaging element. The case where it is integrated with the surface outside is also included. That is, the front surface functions as a hook surface fastener and the back surface functions as a loop surface fastener. As a method of integrating the hook surface fastener (A) base fabric and the loop surface fastener (B) base fabric, by bonding them together with an adhesive or pressure sensitive adhesive, or by bonding them by heat fusion, Furthermore, they are integrated by sewing them together or by needle punching by superimposing them.

The hook hook-and-loop fastener (A) and loop hook-and-loop fastener (B) according to the present invention can be used in application fields where conventional hook-and-loop fasteners are used. For example, shoes, bags, hats, gloves, etc. Clothing, sphygmomanometer, supporters, packing straps, binding tape, various toys, fixing of civil engineering and construction sheets, fixing of panels and wall materials, fixing of solar cells to the roof, fixing of electrical components, assembly / It can be used in a wide range of fields such as decomposable storage boxes, packing cases, accessories and curtains.
When the hook surface fastener (A) base fabric and the loop surface fastener (B) base fabric are integrated, such front and back double-sided fasteners are particularly effective as binding bands, fastening bands, and the like.

  When all the combinations of the hook-and-loop fasteners of the present invention are made of polyester fibers, they can be uniformly dyed without causing color unevenness, and in particular, the clothing is formed of polyester fibers. In this case, since surface fasteners can be dyed simultaneously in the same color under the same dyeing conditions, it is not necessary to prepare many surface fasteners of multiple colors according to the color to be dyed as in the prior art, which is extremely preferable.

  EXAMPLES Hereinafter, although an Example demonstrates this invention, this invention is not limited to these Examples. In Examples, the dry heat shrinkage was measured according to JIS L1013, and the engagement strength was measured according to JIS L3416 at a surface fastener width of 100 mm.

Example 1
The following yarns were prepared as ground warp and weft yarns, monofilaments for hook-like engagement elements, and multifilaments for loop-like engagement elements constituting the base fabric of the hook-and-loop fastener.
[Ground warp]
・ Multifilament yarn made of polyethylene terephthalate with a melting point of 260 ° C. ・ Total decitex and number of filaments: 167 dtex 30 [weft yarn (multifilament heat fusion yarn made of core-sheath type composite fiber)]
-Core component: Polyethylene terephthalate (melting point: 260 ° C)
-Sheath component: 25 mol% copolymerized polyethylene terephthalate with isophthalic acid
(Softening point: 190 ° C)
-Core-sheath ratio (weight ratio): 70:30
-Total decitex and number of filaments: 24 at 99 dtex-Dry heat shrinkage at 200 ° C: 13%

[Monofilament for hook-like engagement element]
-Polyethylene terephthalate fiber (melting point: 260 ° C)
・ Fineness: 390 dtex (diameter: 0.19 mm)
[Multifilament for loop-like engagement element]
・ Polybutylene terephthalate fiber (melting point: 220 ° C)
・ Total decitex and number of filaments: 7 at 265 dtex

Using the above four types of yarn, a hook surface fastener (A) and a loop surface fastener (B) were produced under the following conditions.
[Hook hook-and-loop fastener (A)]
Using the above-mentioned ground warp, ground weft, and hook-like engagement element monofilament, plain weave is used as the woven structure, and the weave density (after heat shrinkage treatment) is 55 warp / cm ground warp / 20 weft / cm. Weaved into. A hook-type engagement element monofilament is driven in parallel with the ground warp yarn at a rate of 1 out of 4 ground warp yarns, and after 5 ground wefts are lifted and lowered, the 3 warp yarns are straddled. A loop was formed on the base fabric to form.

  The hook surface fastener tape woven under the above conditions is a temperature range in which only the sheath component of the weft yarn is thermally melted and the core component of the ground warp yarn, the hook engaging element monofilament and the weft yarn is not melted by heat. That is, heat treatment was performed at 200 ° C. The ground weft shrunk greatly and the sheath component melted to fuse the neighboring yarn. As a result, the base fabric contracted 9% in the direction of the weft. And after cooling the obtained textile fabric, the hook-shaped engagement element which cut | disconnected the one leg part of the loop for hook-shaped engagement elements was formed.

The hook-shaped engagement element density of the obtained hook surface fastener (A) was 42 pieces / cm ² , and the height of the hook-shaped engagement element from the base fabric surface was 1.8 mm.

[Loop surface fastener (B)]
Using the above-mentioned ground warp yarn, ground weft yarn, and multifilament for loop-shaped engagement element, a plain weave is used as the woven structure, and the weave density (after heat shrinkage treatment) is 55 warp yarn / cm and 22 weft yarn / cm. Woven like so. Then, the base filament is formed so that the multifilament for loop-like engagement element is driven in parallel to the ground warp yarn without straddling the ground warp yarn at a rate of 1 out of 4 ground warp yarns. A loop was formed on top.

The loop hook-and-loop tape woven under the above conditions is a temperature at which only the sheath component of the weft yarn is thermally melted, and the core component of the ground warp yarn, the loop engagement element multifilament, and the weft yarn is not melted. Heat treatment was performed in the region, ie 200 ° C. The ground weft shrunk greatly and the sheath component melted to fuse the neighboring yarn. As a result, the base fabric shrunk 12% in the direction of the weft. The resulting fabric was allowed to cool. The obtained loop hook-and-loop fastener (B) had a loop-like engaging element density of 44 pieces / cm ² , and the height of the loop-like engaging element from the base fabric surface was 2.4 mm.

  Both hook hook fastener (A) and loop hook fastener (B) obtained in this way were dyed amber under high-pressure conditions where polyethylene terephthalate fibers can be dyed. It was. The dyed hook surface fastener (A) and loop surface fastener (B) are both base fabrics compared to conventional surface fasteners that are coated with a conventional resin for preventing pulling out of the engaging element (backcoat resin). However, even when sewed on clothes, the drapeability, shape, comfort, etc. of the clothes were not significantly impaired by the hardness of the hook-and-loop fastener base fabric. Further, the hook surface fastener (A) and the loop surface fastener (B) were immersed in water for 10 minutes and then removed from the water. However, there was no change in form and engagement force, and the base fabric had a flat state. It was.

  Next, the engaging strength of the obtained surface fastener was determined. The results are shown in Table 1. The engagement strength was measured in both the shearing direction and the peeling direction of the surface fastener having a width of 100 mm. As a result, the engagement force showed a very high value. Furthermore, this hook-and-loop fastener was repeatedly engaged and peeled 5000 times, and the subsequent engagement strength was measured. The results are listed in Table 1.

  As is clear from the table, the initial engagement strength is high, and the engagement strength hardly deteriorates even after repeating the engagement and separation 5000 times, and is extremely durable. I understand. The cause of this is that when the multi-filament of the loop-shaped engagement element of the loop surface fastener (B) is enlarged and observed with an optical microscope, it is observed that the multi-filament is widely dispersed and spreads laterally at the loop portion. It is conceivable that the number of loop fibers that engage with the engagement elements increases, and the loop shape can be maintained even if the engagement and separation are repeated. In addition, since the hook-shaped engagement element of the hook surface fastener is also rigid, the hook is difficult to open (maintain the hook shape), the hook-shaped engagement element is not easily tilted, and the hook-shaped engagement element and the loop-shaped engagement element are It turns to the direction which is easy to engage, and it turns out that these also bring about the improvement of engagement force.

Comparative Example 1
In Example 1 described above, the loop-shaped engaging element constituting the loop surface fastener (B) was replaced with a multifilament (melting point: 260 ° C., total decitex: 265 dtex, number of filaments: 7) made of polyethylene terephthalate. A loop surface fastener (B) was produced in the same manner as in Example 1.
The engagement strength was measured by combining the obtained loop surface fastener (B) and the hook surface fastener obtained in Example 1. The results are listed in Table 1.

  As is apparent from the results in Table 1, it can be seen that both the initial engagement strength and the engagement strength after repeating 5000 times of engagement and separation are inferior to those of Example 1. It is presumed that the cause is that the multifilaments constituting the loop-like engagement element are kept in a focused state without being scattered to individual filaments, and that the engagement force has a low value. And it is estimated that the loop-shaped engagement element which repeated engagement 5000 times was confirmed that the multifilament was scattered, and it became a value stronger than the initial engagement strength. Only inferior engagement strength was obtained.

Comparative Example 2
In Example 1 above, except that the hook-shaped engaging element constituting the hook surface fastener (A) is replaced with a monofilament [melting point: 220 ° C., thickness: 435 dtex (diameter: 0.20 mm)] made of polybutylene terephthalate. A hook surface fastener (A) was produced in the same manner as in Example 1.
The engagement strength was measured by combining the obtained hook surface fastener (A) and the loop surface fastener (B) obtained in Example 1. The results are listed in Table 1.

  As is clear from the results in Table 1, it can be seen that both the initial engagement strength and the engagement strength after repeating 5000 times of engagement and separation are inferior to those of Example 1. The cause is that the monofilament constituting the hook-shaped engagement element easily opens the hook, the loop-shaped engagement element is detached from the hook-shaped engagement element with low tension, and the hook-shaped engagement element is easily tilted with low pressure. , It is presumed that the engagement force has a low value.

Comparative Example 3
The engagement strength was measured by combining the loop surface fastener (B) produced in Comparative Example 1 and the hook surface fastener (A) produced in Comparative Example 2. The results are shown in Table 1.

  As is apparent from the results in Table 1, both the initial engagement strength and the engagement strength after repeated engagement / peeling 5000 times were inferior to those of Example 1. The cause is that the multi-filaments that make up the loop-like engagement element are kept in a converged state without breaking into individual filaments, and the hooks of the hook-like engagement elements are easy to open and hook-like engagement with low tension It is observed that the loop-like engagement element is detached from the element, and that the hook-like engagement element is easily tilted, and this is assumed to have a low engagement force.

Example 2
In Example 1, a hook surface fastener (A) was produced in the same manner as in Example 1 except that the thickness of the polyethylene terephthalate monofilament used as the hook-like engaging element was replaced with that of 300 dtex (diameter: 0.17 mm). . The obtained hook hook-and-loop fastener (A) was combined with the loop hook-and-loop fastener (B) manufactured in Example 1, and the engagement force was measured. The results are shown in Table 2.

  As is apparent from the results in Table 2, the combination of the hook-and-loop fasteners of this example has a much better engagement force than that of the comparative example, although the engagement force is slightly inferior to that of Example 1. I understand that Moreover, the result of being immersed in water did not have morphological changes such as undulations as in the case of Example 1. Furthermore, compared with a combination of cloth surface fasteners coated with a commercially available back coat resin, the base fabric was expected to be extremely flexible and suitable for use in the clothing field.

Example 3
In Example 1, the polybutylene terephthalate multifilament used as the loop engaging element is replaced with a polybutylene terephthalate multifilament consisting of 10 filaments with a total decitex of 265 decitex, and the loop is performed in the same manner as in Example 1. A hook-and-loop fastener (B) was produced. The obtained loop hook-and-loop fastener (B) was combined with the hook hook-and-loop fastener (A) manufactured in Example 1, and the engagement force was measured. The results are shown in Table 2.

  As is apparent from the results in Table 2, the combination of the hook and loop fasteners of the present example is superior to that of Example 1 in the initial engagement strength, and the engagement strength after repeated engagement and separation 5000 times is reduced. As can be seen, it can be seen that the initial engagement strength is particularly superior to that of the comparative example. Observation of the loop-shaped engagement element after repeating the engagement / peeling 5000 times showed that a large number of the multifilament fibers constituting the loop-shaped engagement element were cut. The fact that the number of filaments is increased in spite of the same total decitex as in Example 1 means that one fiber is thinned, and because the constituent fibers are thinned, 1 It is presumed that the strength of the fiber of the book is lowered and the numerical value of the engagement strength is lowered. Also, the result of immersing the hook-and-loop fastener in water was very excellent in form stability as in Example 1. Furthermore, the base fabric is extremely flexible as compared with a cloth surface fastener to which a commercially available back coat resin is applied, and is suitably used in the clothing field.

Comparative Example 4
Loop surface fastener in the same manner as in Example 1 except that the loop-shaped engaging element of the loop surface fastener (B) is replaced with nylon 6 multifilament [total decitex: 235 dtex filament number: 10]. (B) was produced. In the obtained loop surface fastener (B), the engaging element is not fixed to the base fabric. When the hook surface fastener (A) manufactured in Example 1 is engaged, the loop-shaped engaging element is easily base fabric. Each time it is pulled out from the surface and repeatedly engaged and peeled, the surface becomes more brushed and the engagement strength seems to be stronger every time it repeats engaging and peeling. Lost the function as a fastener.

  When the polyurethane solution was applied to the back side of the base fabric and dried in order to prevent it from being pulled out from the base fabric surface, the hook-and-loop fastener (B) became hard and much less flexible than that of Example 1. there were. Further, the loop surface fastener (B) before applying this urethane solution was immersed in water for 10 minutes, taken out and immediately engaged with the hook surface fastener (A) of Example 1, and then pulled out from the base fabric. More loop-shaped engaging elements were observed, and the hook-and-loop fastener had no commercial value at all.

Claims (7)

A hook surface fastener (A) having a hook-like engagement element made of monofilament on the surface of a base fabric made of ground warp, ground weft and the hook-like engagement element, and engaged with the hook-like engagement element In the combination of loop hook-and-loop fastener (B) having a loop-like engagement element made of multifilament obtained on the surface of a base fabric made of ground warp, ground weft, and thread for loop-like engagement element , the monofilament is polyethylene terephthalate A combination of cloth surface fasteners, wherein the multifilament is formed from a polybutylene terephthalate polyester resin. Both the ground warp and the weft constituting the base fabric of the hook surface fastener (A) and the loop surface fastener (B) are yarns formed from a polyester resin, and the ground yarn is a core-sheath type heat. It includes fusible fibers, further root of the hook-like engaging elements and loop-like engaging elements, fabric of claim 1 which is by Ri fixed to sheath component resin該地weft constituting the base fabric A combination of hook-and-loop fasteners.   The fabric surface according to claim 1 or 2, wherein the multifilament constituting the loop-shaped engagement element of the loop surface fastener (B) is a multifilament yarn having a total decitex of 5 to 15 filaments and a total decitex of 150 to 300 dtex. A combination of fasteners.   The combination of cloth surface fasteners according to any one of claims 1 to 3, wherein the monofilament constituting the hook-shaped engaging element of the hook surface fastener (A) is a monofilament having a diameter of 0.13 to 0.40 mm. The combination of fabric surface fastener according to any one of claims 1 to 4 density of hook-like engaging element is 20 to 120 pieces / cm ² of the hook surface fastener (A). The combination of fabric surface fastener according to any one of claims 1 to 5 density of the loop-like engaging elements is 20 to 120 pieces / cm ² loop fastener (B).   The base fabric constituting the hook surface fastener (A) and the base fabric constituting the loop surface fastener (B) are respectively integrated with the surface having the engaging element on the outside. A combination of fabric hook and loop fasteners.