WO2015137114A1

WO2015137114A1 - Loop textile and fastener using same, and male fastener forming pair with such fastener

Info

Publication number: WO2015137114A1
Application number: PCT/JP2015/055339
Authority: WO
Inventors: 敬義開高; 康之福島; 一則高桑
Original assignee: クラレファスニング株式会社
Priority date: 2014-03-13
Filing date: 2015-02-25
Publication date: 2015-09-17
Also published as: JPWO2015137114A1; JP6407250B2

Abstract

The present invention pertains to a loop textile and the like, the loop textile being a textile comprising warp and weft. For a portion of the warp, a monofilament having a fineness of 180-1000 dtex is used. The warp constituted by the monofilament stands up from the textile surface to form loops. The space (D_L) between the legs of the loop is 4-15mm, the height (H_L) of the loop is 0.5-2.5mm, H_L/D_L is 0.1-0.4, and the density of the loops is 40-300 loops/10cm². The loop surface is substantially parallel to the warp. The legs of the loops are uniformly arranged in the weft direction and both legs of the loop are fixed to the textile.

Description

Loop fabric, fastener using the same, and male fastener paired with the fastener

The present invention relates to a woven fabric having a low loop made of monofilament on the surface, which is useful as a fastener for a brassiere, an upholstery material, a tatami mat surface material, a rug or the like. Furthermore, the present invention relates to a fastener made of the loop woven fabric and a resin-made male fastener used as a pair with the fastener.

Conventionally, as a fastener on the back or front of a brassiere, a metal hook made of a metal saddle type fastener (6) and a metal round shape fastener (7) as shown in FIG. 3 is generally used. It is used. As shown in FIG. 3, the round fastener is usually attached in three stages in the length direction, and the fastening position can be changed according to the size of the chest circumference and its change.

However, in such a conventional metal hook, it is possible to adjust the position of only three stages as described above, and there is a problem that a delicate fastening position adjustment cannot be performed. Further, in the case of a metal hook, Hooks that are not made of metal are demanded because they can be worn on metal detectors when boarding an aircraft or cannot be worn when inspected by MRI, CT, or X-rays. Further, in the case of a metal hook, the hook presses the back when leaning on a chair or lying down, and there is a problem that it feels uncomfortable.

In place of such metal hooks, it has been considered to use resin-made molded hooks (Patent Document 1). However, molded hooks are generally low in strength, and in order to increase strength, the hooks must be made large. However, the problem that the position cannot be finely adjusted and the problem that the user feels uncomfortable by pressing the back are hardly solved.

The present inventors have found that the above problems can be solved by using a woven fabric having multi-stage low loops made of monofilaments on the surface instead of metal round fasteners or resin molding hooks. .

In addition, the textiles which have a loop on the surface are well-known, for example, are used as a hook-and-loop fastener etc.

Among such hook-and-loop fasteners, so-called loop hook-and-loop fasteners having loop-like engagement elements on the fabric surface use multifilament yarns as yarns forming the loop-like engagement elements. When the strength is applied, the filaments constituting the multifilament yarn are gradually cut, and finally, all the filaments constituting the loop are broken and the ability to fasten is lost. Furthermore, the loop is formed at a place where it does not straddle the weft at all or at a place that straddles about 1 to 3 (Patent Document 2). Such a loop is narrow between the legs and has a high loop height. The loop is easy to fall down and has a problem that it is difficult to engage with the saddle type fastener.

A so-called hook hook-and-loop fastener having a hook-like engagement element on the surface of the fabric is woven by weaving monofilament yarn to be the hook-like engagement element into the fabric, projecting the monofilament yarn into a loop shape on the fabric surface, and heat-treating the loop. After the shape is fixed, it is manufactured by a method in which one leg of the loop is cut to form a hook-like engagement element. Before the loop one leg is cut, there is a monofilament loop on the fabric surface. It becomes.

However, the loop fabric used as the precursor of the hook surface fastener is also for obtaining a hook-like engagement element almost upright from the surface of the fabric, so that the distance between both legs is narrow and the loop height is high. (Patent Document 3). When such a loop with a narrow leg and a high loop height is used as a fastener such as a brassiere, a strong tensile force is applied in the lateral direction, so the loop is easy to collapse, and the saddle type There is a problem that it is difficult to get involved with the ingredients.

On the other hand, Patent Document 1 describes a molded fastener for brassiere comprising a resin taper-like overhanging portion and a pair of locking holes for locking the overhanging portion. In the case of molded fasteners, in order to increase the strength, it is necessary to enlarge the fasteners, and there is a problem that subtle position adjustment cannot be performed and the problem of giving discomfort by pressing the back. It is hardly eliminated.

It is also known to use general hook surface fasteners and loop surface fasteners in place of such molded fasteners (Patent Document 4). However, in the case of a general hook-and-loop fastener, the hook-shaped engaging element is formed from a thin monofilament, and the loop-shaped engaging element is also formed from a multifilament yarn that is an aggregate of thin filament fibers. In addition, the multifilament yarn forming the loop-like engagement element is separated into individual thin filament fibers at the loop portion in order to enhance engagement, and engages with the hook-like engagement element in this state. Therefore, the engagement force is low, and when repeatedly used, the thin filament fibers forming the loop-like engagement element are gradually cut or the hook-like engagement element is tilted, and the engagement force is further reduced. have.

JP 7-216603 A (abstract and drawings) Republished patent WO2007 / 074791 pamphlet (FIGS. 1 and 2) Japanese Utility Model Publication No. 6-52521 (FIGS. 1 to 3) JP 2009-30207 A (claims and drawings)

One aspect of the present invention is a woven fabric made of warp and weft, and a monofilament yarn of 180 to 1000 dtex is used as a part of the warp, and the warp yarn made of the monofilament yarn is lifted from the fabric surface to form a loop. The distance between the legs of the loop (D _L ) is 4 to 15 mm, the height of the loop (H _L ) is 0.5 to 2.5 mm, and H _L / D _L is 0.1 to 0.4. The present invention relates to a loop fabric in which the loop density is 40 to 300 pieces / 10 cm ² , the loop surface is substantially parallel to the warp, the loop is aligned with the legs aligned in the weft direction, and the loop legs are fixed to the fabric.

Further, another aspect of the present invention relates to a fastener made of the loop woven fabric, a resin-made male fastener used in combination with the fastener, clothing using the same, and the like.

It is a perspective view of a suitable example of the loop fabric of the present invention. It is a perspective view of other suitable examples of the loop fabric of the present invention. It is the perspective view which looked at an example of the conventional common brassiere from the back direction. It is a pattern figure of the loop fabric of FIG. 1 which is an example of the loop fabric of this invention. It is a pattern diagram of another example of the loop fabric of the present invention. It is a pattern figure of the loop fabric of FIG. 2 which is an example of the loop fabric of this invention. In the loop fabric of FIG. 1 which is the loop fabric of the present invention, it is a pattern diagram when the loop is formed so as to straddle the warp, and this pattern diagram is also an example of the present invention. In the pattern diagram of FIG. 5 which is an example of the loop fabric of the present invention, it is a pattern diagram when the loop is formed so as to straddle the warp. This pattern diagram is also an example of the present invention. In the loop fabric of FIG. 2 which is an example of the loop fabric of the present invention, it is a pattern diagram when the loop is formed so as to straddle the warp. This pattern diagram is also an example of the present invention. It is a perspective view which shows a suitable example of the male fastener of this invention. It is sectional drawing of the stem row direction of a suitable example of the male fastener of this invention. It is sectional drawing which looked at an example of the suitable stem which comprises the male fastener of this invention from the direction orthogonal to FIG. It is a figure which shows a suitable example of the nozzle used for manufacturing the male fastener of this invention by extrusion molding. It is a pattern figure of a loop fabric suitable as an engagement partner of the male fastener of the present invention. It is sectional drawing which looked at the stem which comprises the male fastener used as a comparative example from the direction orthogonal to a board | substrate length direction. It is sectional drawing which looked at the stem which comprises the male fastener used as another comparative example from the direction orthogonal to a board | substrate length direction.

The present invention provides a loop fabric that does not cause the above-described problems when used as a fastener such as a brassiere. In detail, the fastening position can be delicately adjusted and is not made of metal. , You don't have to detect metal when boarding an aircraft, you can wear it for MRI, CT, and X-ray examinations, and the hook presses your back when leaning on a chair or lying down A loop fabric that can be easily fastened and does not lose its ability to fasten for a long period of time, and a clasp having excellent engagement force using the same, and a pair thereof. A male fastener is provided.

Furthermore, one object of the present invention is a loop fabric covered with a loop having a low and wide hem, so that it is comfortable to use when used as a rug as a substitute for a chair upholstery or tatami mat. It is to provide a loop fabric that gives a feeling.

Hereinafter, although the form for implementing this invention is demonstrated in detail, this invention is not limited to these.

In addition, each code | symbol in drawing is respectively:
1: Loop fabric, 2: Loop, 3: Weft direction, 4: Warp direction, A1: Loop region A1, A2: Loop region A2, B: Loop absence region B, D _L : Loop leg spacing, H _L : Loop height, 5: brassiere, 6: vertical fastener, 7: round fastener, 11: substrate, 12: stem, 13: protrusion, 14: nozzle, 15: slit for substrate formation, 16: stem And slit portion for forming a protrusion, 112: weft direction, 113: warp direction, X: fastener width direction, Y: fastener length direction (ie, stretching direction), W: stem width (ie, protrusion width), H: Stem height, D: Stem row pitch, S1: Stem row distance in the stem row direction, S2: Projection distance from the top surface of the protrusion to the stem, a: Depth of head part, b: Head part Indicates the height.

When the loop fabric of the present embodiment is used as one of the fasteners, a fabric or a resin molded product having a hook-shaped engagement element on the surface is used as an engagement partner. Of course, for applications where there is no problem with being made of metal, a metal fastener having a metal hook-shaped engagement element may be used. The saddle-shaped engaging element has a plurality of saddle-shaped engaging elements in multiple stages so as to disperse the tension, and in particular, a plurality of saddle-shaped engaging elements corresponding to the plurality of loop regions of the loop fabric of the present embodiment. What has an engagement element row | line | column is preferable.

The loop fabric of the present embodiment is basically composed of warps (W ₁ and W ₂ ) and wefts, and monofilament yarn (W ₂ ) is used as a part of the warp.

A multifilament yarn (W ₁ ) is preferred as the main component of the warp, and the multifilament yarn constituting the warp is a multifilament yarn having a total decitex of 10 to 96 filaments of 100 to 400 decitex. Particularly preferred are multifilament yarns having a total decitex of 15 to 60 filaments and a total decitex of 120 to 300 dtex.

Since the monofilament yarn (W ₂ ) used as a part of the warp is required to be rigid, a monofilament yarn made of a thick synthetic fiber is used. The thickness of the monofilament yarn is preferably from 180 to 1000 dtex in terms of rigidity, and further from the viewpoint of durability as a fastener, and more preferably from 200 to 600 dtex. In terms of rigidity and ease of engagement, the cross-sectional shape of the monofilament yarn may be an irregular cross-sectional shape represented by a polygonal system such as a triangle or a square.

In this embodiment, a monofilament yarn (W ₂ ) is used as a part of the warp yarn. Preferably, the monofilament yarn (W ₂ ) is in a ratio of 1 to 2 to 8 warps (the number including the monofilament yarn). Is inserted into the woven fabric in parallel with the other warp yarns (W ₁ ), more preferably 3 to 7 yarns are inserted at equal intervals, and most preferably 1 to 4 yarns are inserted at equal intervals. It is a case.

The weft is preferably a multifilament yarn, and the thickness of the multifilament yarn constituting the weft is preferably a multifilament yarn having a total decitex of 12 to 96 filaments of 50 to 350 dtex, particularly 18 to 60 yarns. A multifilament yarn having a total decitex of 100 to 250 decitex made of these filaments is preferred.

The fibers constituting warps and wefts (including monofilament yarns) are preferably made of a polyester-based polymer from the viewpoints of loop rigidity and durability, and from the viewpoint that both legs of the loop can be firmly fixed to the fabric.

The polyester-based polymer is a polyester mainly composed of ethylene terephthalate units or a polyester mainly composed of butylene terephthalate units, and is mainly obtained by a condensation reaction from terephthalic acid and ethylene glycol or a condensation reaction from terephthalic acid and butanediol. It is.

Particularly preferably, the multifilament yarn constituting the weft, the multifilament yarn (W ₁ ) constituting the warp being made of polyethylene terephthalate resin and the monofilament yarn (W ₂ ) constituting a part of the warp being made of polybutylene terephthalate resin. Consists of a core-sheath cross-sectional composite fiber, the core component of which is a polyethylene terephthalate resin, the sheath component is a polyethylene terephthalate-based or polybutylene terephthalate-based copolymer polyester resin, and the melting point or softening point is 20 degrees or more lower than that of the core component resin. This is the case of resin.

In such a case, the loop can be firmly fixed on the fabric by melting only the sheath component, and the fabric is firmly fixed, and the rigidity of the loop is further improved. In terms of durability of the loop, etc., it is preferable in that both the legs of the loop can be firmly fixed to the fabric.

In addition, since the monofilament yarn constituting the loop is a polybutylene terephthalate-based polyester resin, the loop surface is not easily collapsed, and the loop yarn contracts more than other warp yarns due to heat when heat-welding the weft yarn, This makes it possible to form a loop that is less likely to collapse, which is also preferable from this point.

The monofilament yarn for loop is required to have loop shape retention and rigidity, and for this purpose, a monofilament yarn made of thick synthetic fiber is used. In the present embodiment, as this monofilament yarn, a monofilament having a melting point that is formed from a polybutylene terephthalate-based polyester resin particularly excellent in loop shape retention and does not melt at the temperature at which the heat-fusible fiber is heat-sealed. Yarn is used.

It is also possible to fix the loop monofilament yarn to the woven fabric by using a heat-fusible fiber instead of the weft, but the loop monofilament yarn is driven into the base fabric in parallel to the warp. The number of crossing points with the loop monofilament yarn is much smaller than the weft. Therefore, when the heat-fusible fiber is used only for the warp yarn, the loop monofilament yarn is difficult to be firmly fixed to the fabric, and when the heat-fusible fiber is used for the warp yarn, the loop fabric is continuously produced. Therefore, it is difficult to keep the tension applied to the traveling fabric constant, and it is difficult to stably and continuously produce a loop fabric of a constant quality.

The core-sheath-type heat-fusible fiber described above is preferably made of a polyester-based resin that can melt the sheath component and firmly fix the root of the monofilament yarn for the loop to the woven fabric. Mention may be made of polyester fibers having a core-sheath type cross section in which the sheath component does not melt below but the sheath component melts. Specifically, polyethylene terephthalate is used as a core component, and a copolymer component represented by isophthalic acid, adipic acid, or the like is copolymerized in a large amount, for example, 20 to 30 mol%, thereby greatly reducing the melting point or softening point. A typical example is a core-sheath cross-sectional composite polyester fiber having a copolymerized polyethylene terephthalate as a sheath component.

The melting point or softening point of the sheath component is preferably 100 to 200 ° C., and preferably 20 to 150 ° C. lower than the melting point of the warp, core component or loop monofilament yarn. The cross-sectional shape of the core-sheath type heat-fusible fiber may be a concentric core sheath, an eccentric core sheath, a single core core sheath, or a multicore core sheath.

Furthermore, the ratio of the core-sheath type heat-fusible fiber occupying the fibers constituting the weft, particularly when all of the wefts are substantially formed of the core-sheath cross-section composite fiber, that is, the wefts are of the core-sheath type. The heat-fusible multifilament yarn is preferable because the monofilament yarn for loop and the multifilament for warp (W ₁ ) are firmly fixed to the base fabric. If the fibers that make up the weft are not the core-sheath cross-sectional shape and the entire cross-section of the fiber is made of a heat-fusible polymer, the heat-fusible polymer that melts and re-sets becomes brittle and easy to break, and is sewn. In such a case, the fabric easily tears from the thread portion. Therefore, it is preferable that the heat-fusible fiber contains a resin that is not heat-sealed, and preferably has a cross-sectional shape of the core-sheath. The weight ratio of the core component to the sheath component is preferably in the range of 20:80 to 80:20, particularly in the range of 40:60 to 70:30.

Woven a woven fabric from the above-mentioned warp, weft and monofilament yarn for loop. The woven structure of the woven fabric is preferably a plain weave with a monofilament yarn for loop as a part of the warp. The monofilament yarn for loop rises from the fabric surface in the middle of the structure to form a loop while existing in the woven fabric parallel to the warp. Specifically, as shown in FIGS. 4 to 6, a loop is formed across 5 to 30 wefts, more preferably 7 to 25, and even more preferably 9 to 21. In addition, a woven structure that is also wound between the wefts is preferable. 4 has nine wefts, and FIG. 5 and FIG. 6 have a structure in which nineteen wefts are straddled into the woven structure.

In FIGS. 4 to 6, the monofilament yarn for loop does not straddle the warp at the loop formation place, and the loop surface is directed in a direction parallel to the warp. FIGS. 7 to 9 show the case where three warps are straddled at the loop forming place in the loop fabrics of FIGS. 4 to 6, respectively, and the loop surface is parallel to the warp by such straddling. However, if the angle is within 20 degrees from the warp direction, there is no particular problem. Preferably, as shown in FIGS. 4 to 6, the monofilament yarn for loop is a case where the loop surface is oriented in a direction parallel to the warp without crossing the warp at the place where the loop is formed. Since the force applied to the foot is evenly distributed to both legs, the durability is improved. In this embodiment, since the case where the monofilament yarn for loop straddles the warp yarn as described above is included, the expression that the loop surface faces the direction substantially parallel to the warp yarn is used.

The weaving density of warps (including loop monofilament) is 50 to 85 yarns / cm after heat treatment, and the weft density of weft yarns is 15 to 30 yarns / cm after heat treatment. Is preferred. The weight ratio of the weft is preferably 25 to 50% with respect to the total weight of the warp and weft including the monofilament yarn for loop. Further, the number of loop monofilament yarns to be driven is preferably about 3 to 7, and particularly preferably 4 to 6, with respect to 20 warp yarns (including monofilament yarns for loops).

Furthermore, in the loop fabric of this embodiment, the loops are arranged in the weft direction as shown in FIG. 1 and FIG. As described above, by being arranged in a row in the weft direction, it is possible to finely adjust the position to be caught like a brassiere fastener.

Furthermore, in this embodiment, it is important that the loop formed on the fabric surface has a specific loop shape. That is, the distance between the legs of the loop (D _L ) is 4 to 15 mm, the height of the loop (H _L ) is 0.5 to 2.5 mm, H _L / D _L is 0.1 to 0.4, and the loop density Needs to be 40-300 pieces / 10 cm ² . As shown in FIGS. 1 and 2, the distance between the legs of the loop (D _L ) and the height of the loop (D _L ) represent the distance between the outer sides of the loop legs and the distance from the base of the loop to the top of the loop, respectively. .

When the distance between both legs (D _L ) is shorter than 4 mm, it is difficult to catch when the fastener is used, and conversely, when it is longer than 15 mm, the durability is inferior. More preferably, it is in the range of 5 to 10 mm.

Further, when the loop height (H _L ) is lower than 0.5 mm, it is difficult to catch when it is used as a fastener, and conversely, when it is higher than 2.5 mm, the loop is likely to fall, and this is also difficult to catch. More preferably, it is in the range of 1.0 to 2.0 mm.

Regarding H _L / D _L , similarly to the above loop height, when it is lower than 0.1, it is difficult to catch when it is used as a fastener, and conversely, when it is higher than 0.4, the loop is likely to fall down. It becomes difficult. More preferably, it is in the range of 0.15 to 0.3.

Furthermore, the loop density needs to be 40 to 300 pieces / 10 cm ² , and if it is less than 40 pieces / 10 cm ² , the function as a fastener is inferior, and the comfort as a seat overlay or a rug. On the contrary, when it exceeds 300 pieces / 10 cm ² , the loop becomes too dense and is difficult to be caught. More preferably, it is 60 to 150 pieces / 10 cm ² .

As a preferred woven structure of the loop fabric of this embodiment, the warp and the latitude are the same as the warp every time the warp and the weft intersect, except where the loop monofilament forms a loop. It is preferable to change the float and sink from the standpoint of pull-out resistance of the loop. 4 to 9 show such a woven structure.

Among them, there are warp yarns (W ₂ ) made of monofilament yarns for every plurality of warp yarns (W ₁ ) made of multifilament yarns in particular, and W ₁ changes floating and sinking every time it intersects with weft yarns, W ₂ is in the state of ups and downs with respect to the wefts, and the wefts are yarns made of heat-fusible fibers. The loop regions (A1) and (A2) shown below are alternately or (A1) and (A2) It is preferable from the viewpoint of the pull-out resistance of the loop that it exists alternately via the following loop absence region (B).

(A1): W ₂ changes floating and sinking every time it intersects with the weft, but W ₂ existing next to W ₂ is a region that crosses the weft and forms a loop on the fabric (A2 ): W ₂ straddles the weft and forms a loop on the fabric, but W ₂ existing next to W ₂ changes the float and sink each time it intersects the weft (B): W ₂ and regions that are changing the float and sink in each intersecting with the W ₂ are both weft that is present next to it

In FIGS. 4 to 9, the loop regions (A1) and (A2) as described above exist alternately or alternately between (A1) and (A2) via the loop absence region (B). It has become a woven organization. Particularly, in FIGS. 4, 5, 7 and 8, the regions are repeatedly arranged in the order of (A1)-(B)-(A2)-(B), while in FIGS. The area (B) does not exist, and the areas are repeatedly arranged in the order of (A1)-(A2). When the region (B) exists, the region (B) can be used as an ear when attaching the loop fabric of the present embodiment by sewing, which is easy to use.

In the present embodiment, the area ratio of the loop absence region (B) is 40% or less with respect to the total area of the loop region (A1), the loop region (A2), and (B). It is preferable because the above characteristics can be expressed. The width of the loop non-existing region (B) is preferably such that there are 3 to 7 wefts. The width of the area (A1) and the area (A2) is the same as the distance between the legs (D) of the loop.

In the loop regions (A1) and (A2), as shown in FIGS. 1 and 2, the loops are arranged in a row in a direction substantially perpendicular to the loop surface, and the loop shown in FIGS. It is preferable that 5 to 15 loops, particularly 6 to 9 loops per 1 cm of the column length are provided in order to exhibit the function as a fastener.

In the loop woven fabric of this embodiment, it is necessary for the loop legs to be fixed to the woven fabric in terms of resistance to pulling out of the loop, and in particular, the loop legs are fused and fixed to the woven fabric by melting the weft. It is preferable.

As shown in FIGS. 1 and 2, the loop fabric according to the present embodiment has loops that are low on the fabric surface and have a wide interval between the legs in a row perpendicular to the loop surface. It can be used as a fastener by slitting the woven fabric in the region (B), and the loop legs are firmly fixed to the woven fabric by the weft fusion and plain weave. As described above, it is not necessary to fix the back surface of the fabric with an adhesive to make it difficult for the loop to be pulled out, and the fabric is extremely flexible and suitable as a fastener for clothing, particularly a brassiere that is easy to touch the skin.

Further, the loop fabric of this embodiment is a loop fabric covered with a loop made of monofilament yarn having a low and wide hem, and the legs of the loop are firmly fixed to the fabric by fixing by weft yarn and a plain weave structure. Since it is fixed, the loop is rarely pulled out. Moreover, it is much less likely to get caught in the loop than the conventional loop fabric. Furthermore, even if a person sits on the fabric, the skin touches the thick monofilament yarn existing on the fabric and does not touch the fabric directly, and the hot summer heats up and there is very little stickiness. Also, in cold winters, there is little direct contact with the fabric, so a cool feeling can be suppressed, and heat is stored between the monofilament yarn and the fabric and it is warm. Therefore, it is extremely useful as a rug as a substitute for a chair upholstery or a tatami mat.

Next, the male fastener of the present invention will be specifically described with reference to the drawings. In addition, although it is preferable that the male fastener of this invention is paired with the fastener which consists of the loop fabric mentioned above, it is not limited to it.

As is clear from FIG. 10, in the male fastener of this embodiment, stems (12) rising almost vertically from the surface of the resin substrate (11) form a line (in FIG. 10, Many stems are arranged in a row in the Y direction, and each stem is in a direction intersecting the stem row direction (preferably a direction within 20 degrees in the front and rear direction from the direction orthogonal to the stem row direction) from the tip thereof, and It has a protrusion (13) protruding in a direction parallel to the substrate, and all the protrusions have a shape protruding from the stem in the same direction (left direction of X in FIG. 10). The protrusions are not substantially present or projecting in directions other than the direction in which the protrusions protrude (X direction in FIG. 10).

As described above, in the male fastener of the present embodiment, the stem and the protruding portion that are the male engaging elements have the stem rising almost vertically from the substrate surface. Furthermore, it is necessary for the tip of the stem to have a protrusion that extends in only one direction in the horizontal direction on the substrate.

∙ The stem stands up almost vertically, so it is not easily damaged by external pressure. In addition, the monofilament loop, which is the mating partner, can be held securely, and at the tip, it has a protrusion that is parallel to the substrate surface and extends in one direction, and has a square section and a flat surface on the side that touches the skin. Can be distributed throughout the fastener. Further, since the protrusion extends in only one direction, it can be easily engaged with the monofilament loop of the mating partner and can be easily peeled off. When the stem is tilted, it is easy to lose the engagement ability due to external pressure, or the fastener is likely to press the back. In addition, when the protrusion is inclined from the horizontal direction, it is difficult to engage with the monofilament loop, the engaged monofilament loop is difficult to peel off, or the filament loop is unnecessarily peeled off. A part of the urine tends to press the back and cause discomfort to the wearer.

Moreover, since the protrusions protrude in the same direction from the tip of the stem, many protrusions are simultaneously involved in the engagement with the monofilament loop, and a stable high engagement force can be obtained. And since such a stem is located in a line in the Y direction, it can be engaged with many monofilament loops at the same time, and the tensile force can be dispersed. Therefore, the male fastener of this embodiment and the monofilament loop of the mating partner are hardly damaged.

In such a male fastener of this embodiment, the height (b) of the pocket formed by the substrate, the stem, and the protrusion is in the range of 0.3 to 2.5 mm, and the height of the pocket is high. The ratio (a / b) of the depth (a) of the head to the length (b) needs to be in the range of 0.5-3. If the height (b) of the head part is out of the range of 0.3 to 2.5 mm, the engagement with the monofilament becomes insufficient, or conversely, the engagement becomes difficult to peel off and becomes difficult to handle. Furthermore, the fastener tends to press the back and give discomfort to the wearer. Preferably, the height (b) of the pocket is in the range of 0.5 to 2.0 mm, more preferably in the range of 0.6 to 1.6 mm.

Further, if the ratio (a / b) of the depth (a) of the pocket to the height (b) of the pocket is out of the range of 0.5 to 3, the engagement force becomes low or the engagement is unexpectedly disengaged. On the other hand, it becomes difficult to disengage, and the engaging element is easily bent when used. Preferably, (a / b) is in the range of 0.8 to 2.5, more preferably in the range of 1.0 to 2.0.

And in the male fastener of this embodiment, it is preferable that the upper surface of the protrusion is a flat plane. The male fastener of the present embodiment has a high engagement force in a specific direction and does not substantially engage in other specific directions.

The thickness of the substrate constituting the male fastener of the present embodiment is preferably in the range of 0.1 to 1.0 mm. As described above, each of the stems (12) rises vertically from the substrate (1), and preferably has an interval of 0.8 to 3.0 times the stem width (W shown in FIGS. 10 and 11) (FIG. 10). 11 and S1 shown in FIG. 11, a large number of stems are arranged in a row in the substrate length direction (Y direction in FIG. 10), and such a stem row is arranged on the substrate in the substrate width direction (FIG. 10). In the X direction), there are a plurality of rows (two rows in FIG. 10) in parallel.

Each stem (12) has a protrusion (13) at its tip as shown in FIGS. The intermediate portion of the stem height, the tip portion of the stem, and the protrusion have substantially the same width (W shown in FIGS. 10 and 11) in the substrate length direction (Y direction shown in FIGS. 10 and 11). Yes.

In this embodiment, the protrusion (13) protrudes in parallel with the substrate from the tip of the stem (12) extending vertically from the substrate (11). Each stem has one protrusion at its tip. In other words, the protrusion protrudes from the distal end portion of the stem at a substantially right angle to the stem. Specifically, this refers to a state of protruding from the stem in the range of 80 ° to 100 °, and more preferably, protruding from an angle of 85 ° to 95 °. In other words, each stem rises vertically from the substrate and bends in the right-angle direction from the middle. The stem can be called the stem from the root to the bent portion, and the tip portion can be called the protruding portion from the bent portion. .

The male fastener of this embodiment will be described in detail. The distance between the top of the stem and the substrate surface, that is, the stem height (H) is preferably in the range of 0.8 to 3.0 mm. It may be difficult to engage with the loop, and if it is larger than this range, the stem is likely to be deformed when engaged with the loop surface fastener, and it may be difficult to obtain a sufficient engagement force. More preferably, it is in the range of 1.0 to 2.5 mm.

Further, the projection distance from the upper surface from the stem root to the tip of the protrusion (S2 shown in FIG. 12) is preferably in the range of 0.8 to 3.0 mm, and if smaller than this range, the monofilament loop can be engaged. It can be difficult. If it is larger than this range, the stem is likely to be deformed when engaged with the monofilament loop, and it may be difficult to obtain a sufficient engaging force. More preferably, it is in the range of 1.0 to 2.5 mm.

The width (W) in the length direction of the stem is preferably the same as the width (W) in the length direction of the protrusion, and a specific suitable value thereof is in the range of 1.0 to 3.0 mm. Is preferred. If it is smaller than this range, when it is engaged with a loop surface fastener, if a strong tensile force is applied, the stem and projections will be easily deformed, making it difficult to use as a clothing fastener for a long time, and if larger than this range However, it is difficult to obtain a sufficient engagement force due to the monofilament loop. More preferably, it is in the range of 1.2 to 2.5 mm.

Further, the distance between the stems (S1) in the length direction (Y direction) of the male fastener is preferably in the range of 0.8 to 3.0 mm. If it is narrower than this range, it will be difficult for the stem to engage the loop, and it will not be easy to attach and detach as a fastener. Conversely, if it is longer than this distance, the stem density will be low, and this will also provide sufficient engagement Cannot be obtained. Furthermore, the touch is also worsened. For the same reason, the inter-stem distance (S1) in the stem row direction is preferably in the range of 0.8 to 3.0 times the stem width (W).

Furthermore, in the male fastener of the present embodiment, a plurality of rows of stems are arranged in a direction (X direction shown in FIG. 10) intersecting the substrate length direction (Y direction shown in FIG. 10). The interval between adjacent stem rows (D direction shown in FIG. 10) is preferably in the range of 1.0 to 3.0 mm. If it is narrower than this range, the loop is difficult to engage and can not be easily attached and detached. Conversely, if it is longer than this distance, the stem density will be low, and sufficient engagement force will not be obtained. The touch also gets worse. More preferably, the stem row interval (D) is in the range of 1.2 to 2.5 mm. Of course, it is necessary that an interval that allows the monofilament to enter is necessary between the tip of the protrusion and the stem that exists in the adjacent row.

Furthermore, in the male fastener of the present embodiment, it is preferable that the stems exist on the substrate at a density of 5 to 40 per 1 cm ² of the substrate. If the amount is less than this range, sufficient engagement force cannot be obtained, and there are inconveniences in use, such as a large male fastener to be used. On the other hand, when it is larger than this range, it becomes difficult to engage with the loop, and it becomes difficult to attach and detach as a fastener. More preferably, the density is in the range of 10 to 35 / cm ² .

In addition, the cross-sectional area of each stem in a direction parallel to the substrate in the middle portion of the stem and the cross-sectional area in a plane perpendicular to the substrate and perpendicular to the protruding direction of the protruding portion existing at the tip of the stem (that is, the protruding length of the protruding portion) The cross-sectional area of the protrusion at the intermediate portion is preferably in the range of 0.1 to 0.8 mm ² . When the cross-sectional area is less than 0.1 mm ² , the stem and the protrusion are easily bent, and the engagement force is reduced. On the other hand, if it exceeds 0.8 mm ^2, the texture becomes hard, which is not preferable. More preferably, it is in the range of 0.2 to 0.7 mm ² .

Next, a method for manufacturing the male fastener of this embodiment will be described. First, a thermoplastic resin is melt-extruded from a nozzle having a slit as shown in FIG. 13, and continuous on the surface of the substrate in the tape length direction comprising a stem perpendicular to the substrate and a protrusion parallel to the substrate. A tape having a large number of rows is formed.

These molded products can be manufactured not only by extrusion molding but also by injection molding. However, male fasteners having stem rows of different heights can be freely manufactured, and since they are stretched, the strength of the substrate is excellent, and the protrusions present on the stem and its tip are stretched. It is preferable to use extrusion molding because it is easy to produce a male fastener that is excellent in softness and soft to the touch and the stem is difficult to peel off from the substrate.

(15) shown in FIG. 13 is a linear slit that constitutes the substrate, and (16) is a plurality of linear slits facing the same direction that constitute the stem and the protrusion. The slit portion (16) rising vertically from the linear slit (15) forms a stem, and the slit portion protruding in parallel to the linear slit (15) from the tip thereof forms a protrusion.

When the slits in FIG. 13 are used, a tape having six L-shaped strips at equal intervals on the substrate surface is obtained. The number of rows is suitably from 10 to 25, preferably from 15 to 20.

The resin used is not particularly limited, and resins used for normal molding, for example, polyolefin resins such as polyethylene and polypropylene, nylon resins such as nylon 6 and nylon 66, polyethylene terephthalate, polybutylene terephthalate, polylactic acid, etc. Polyester resins, polyvinyl chloride resins, styrene resins, acrylic resins, elastomer resins, and the like. Of these, a thermoplastic resin having a surface hardness (using JIS K7215 Type D indenter) of 60 to 80 is preferable in terms of touch and engagement, and polyester elastomer and nylon 12 satisfying this surface hardness are particularly preferable. In particular, since polyester elastomer can be attached to clothing by sewing, it is most preferable in terms of both the touch and the engagement force.

The polyester elastomer is obtained by using terephthalic acid or a derivative thereof as a dicarboxylic acid component and 1,4-butanediol and poly (oxytetramethylene) glycol or a derivative thereof as a diol component. The ratio of [poly (oxytetramethylene)] terephthalate group in is preferably 40 to 70% by weight. Moreover, resin may be used individually or in mixture of 2 or more types.

The surface of the tape having a large number of strips for the stem perpendicular to and continuous with the substrate and for the protrusions parallel and continuous with the substrate obtained by extrusion molding in this way. The row of stems and protrusions existing in the row is cut from the tip of the row to the vicinity of the root at a small interval in a direction transverse to the row length method, preferably in a direction orthogonal thereto. The interval between the cuts is suitably 0.2 to 0.8 mm, particularly 0.4 to 0.6 mm.

Next, the tape is stretched in the length direction. The draw ratio is such that the length of the stretched tape is 1.3 to 3.5 times the original tape length, more preferably 2.0 to 3.0 times. By this stretching, the cuts formed in the rows are expanded, and the rows become a row of a large number of male engaging elements that are independent. While the substrate is stretched by stretching in a state where the cut is made, the stem and the protrusion are not stretched.

In the male fastener of the present embodiment, as shown in FIG. 10, the protruding portion protruding from the stem existing on the substrate surface protrudes in the same direction (X direction in FIG. 10), and as shown in FIG. Since the protrusion extends in a direction parallel to the substrate, the loop fabric preferably used as a pair of the male fastener of the present embodiment, that is, a loop having a low surface and a wide leg interval is formed on the loop surface. It is easy to engage with the loop of the loop fabric lined up in a perpendicular direction, and when engaged, it can be engaged more firmly, and can be easily removed when removed, and further engagement Since the portion is not bulky and soft to the touch, it is suitable as clothing such as trousers and skirts, especially clothing that easily touches the skin, for example, a bra fastener.

This specification discloses various modes of technology as described above, and the main technologies are summarized below.

That is, the present invention is a woven fabric composed of warp and weft, and a monofilament yarn of 180 to 1000 dtex is used as a part of the warp yarn, and the warp yarn composed of the monofilament yarn floats from the fabric surface to form a loop. The distance between the legs of the loop (D _L ) is 4 to 15 mm, the height of the loop (H _L ) is 0.5 to 2.5 mm, and H _L / D _L is 0.1 to 0.4, This is a loop fabric in which the loop density is 40 to 300 pieces / 10 cm ² , the loop surface is substantially parallel to the warp, the loops are aligned with the legs aligned in the weft direction, and the loop legs are fixed to the fabric. The loop surface in the present invention is a surface having the loop as an outer periphery, and when the loop surface is twisted in the middle, the direction of the loop surface is determined by the direction at the center of gravity of the loop surface. The direction.

The loop woven fabric of the present invention has a long distance between the legs of the loop and a low height, so that the loop does not easily fall down, and therefore can be easily fastened when used as a fastener. Further, the loop is formed of a thick monofilament having excellent strength, and since both the legs of the loop are firmly fixed to the fabric, the loop is hardly cut or pulled out, and the ability to fasten is not lost for a long time. In addition, since the loops are arranged in a dense line in the weft direction, the loop is not applied only to a specific loop, and the tensile force is dispersed.

Furthermore, in the loop fabric of the present invention, the loop density is high, the loop surface faces in a direction substantially parallel to the warp, and the loops are arranged in the weft direction. The fastening position can be adjusted. Furthermore, when heat-fusible fibers are used as wefts, monofilament yarns used as loops are heat-sealed at each location where wefts intersect with the wefts, so that they can be pulled out of the fabric even when the loops are pulled. There is no. Therefore, it is suitable as a fastener for a brassiere.

Furthermore, since the loop fabric of the present invention is a loop fabric covered with a large number of loops composed of monofilament yarns with wide hems, even if a person sits on the loop fabric of the present invention, the skin is on the fabric. Touches thick monofilaments that are present and does not stick directly to the fabric. In hot summer, there is very little stickiness due to close contact. Since heat is stored between the fabric and warm, it is useful as a substitute for chair upholstery and tatami mats and as a rug.

Further, preferably, in the above-described loop fabric, there are warp yarns (W ₂ ) made of monofilament yarns for every plurality of warp yarns (W ₁ ) made of multifilament yarns, and W ₁ floats every time it intersects with weft yarns. W ₂ is in the following ups and downs state with respect to the weft, and the weft is a yarn made of heat-fusible fiber, and the following loop regions (A1) and (A2) are alternately or This is a case where (A1) and (A2) are alternately present via the following loop non-existence region (B).

Such a configuration is considered to improve the effects of the present invention as described above, in particular, the resistance to pulling out of the loop.

In the loop woven fabric, it is preferable that both legs of the loop are fixed to the woven fabric by heat fusion of the weft. Further, the weft is a multifilament made of a core-sheath cross-sectional composite fiber whose sheath component is made of a low melting point resin. More preferably, it is a thread.

With such a configuration, the loop can be firmly fixed on the fabric by melting only the sheath component, and the fabric is firmly fixed, and the rigidity of the loop is further improved. In terms of durability of the loop and the like, there is an advantage that both the legs of the loop can be firmly fixed to the fabric.

Preferably, in the above loop fabric, the weft yarns, W ₁ and W ₂ are both composed of fibers made of a polyester resin, and more preferably, W ₁ is a polyethylene terephthalate resin and W ₂ is a poly This is a case where the core component of the core-sheath composite fiber constituting the weft is made of a polyethylene terephthalate resin, and the sheath component is made of a polyethylene terephthalate or polybutylene terephthalate copolymer polyester resin. Preferably, the loop is formed by straddling 7 to 25 wefts, and the case where 3 to 7 wefts are present in the loop absence region (B).

Thereby, the above-described effects can be obtained more reliably.

The present invention further includes a clasp made of the above loop fabric, in particular, a bra clasp, and an upholstery material, a tatami surface material, a rug, and the like of a chair seat surface made of the above loop fabric.

Further, according to another aspect of the present invention, a plurality of stems rising substantially vertically from the surface of the substrate are arranged in a row on the surface of the resin substrate, and each stem intersects the stem row direction from the tip. The projections projecting in the direction parallel to the substrate, and the projections of all the stems project in the same direction from the stem, and the pocket formed by the substrate, the stem and the projections The height (b) is in the range of 0.3 to 2.5 mm, and the ratio (a / b) of the depth (a) of the pocket to the height (b) of the pocket is in the range of 0.5 to 3. This is a male fastener.

By having such a configuration, the male fastener of the present invention has a large number of thick stems standing up almost vertically from the surface of the resin substrate in a row, and at the tip of each stem, a stem row Since it has a long protrusion that protrudes in a direction that intersects the direction and parallel to the substrate, it is easy to hook a low loop made of a thick monofilament that is an engagement partner, and it can be easily removed. This is a drawback of the hook-and-loop fastener, in that the engagement force is low, and the engagement force is hardly deteriorated by repeating the engagement-peeling to damage the loop-like engagement element of the loop surface fastener.

Moreover, since there are a plurality of such rows of stems parallel to the fastener length direction, the engaging force is dispersed without engaging only with a specific stem. As a result, the deformation and cutting of the stem and the cutting of the monofilament of the mating partner are unlikely to occur.

In the above male fastener, it is preferable that the substrate is stretched but the protrusion is not stretched. Furthermore, the substrate, stem, and protrusion are all made of a thermoplastic resin having a surface hardness (using JIS K7215 type D indenter) of 60 to 80, and the resin is preferably nylon 12 rather than polyester elastomer. Is desirable.

Thus, since the base plate constituting the fastener is stretched, the strength is high, and it can be attached to the clothing by sewing, whereas the engaging element, in particular, its protrusion is not stretched. It has the advantage of being flexible and gentle to the skin. This effect is particularly noticeable when the resin is a flexible polyester elastomer.

Further, in the male fastener, the stem has a quadrilateral cross-sectional shape, and the stem cross-sectional area at the middle portion of the stem and the cross-sectional area of the protrusion at the intermediate portion of the protruding length of the protrusion are both 0. It is preferable that the thickness is 2 to 0.8 mm ² , and further, the above-mentioned stems are present on the substrate at a density of 5 to 40 per cm ² of the substrate.

Thus, when the stem is arranged as a fastener, since a large number of stems are arranged in a row, and such stem rows are densely present on the substrate in parallel with a plurality of rows. It is possible to easily adjust the engaged position in multiple stages.

Also, since there is a locking space parallel to the substrate surface as the engaging portion, the distance between the legs of the loop of the loop fabric of the mating partner can be easily engaged with a loop having a low height. Therefore, when used as a fastener, it can be easily fastened. Also, there is almost no noise when peeling. Further, the engaging force in the shearing direction is higher than that of conventionally known hook and loop surface fasteners.

Furthermore, since the male fastener of the present invention is covered with a flat protrusion on the surface where the tip of the lower stem extends in a direction parallel to the substrate, when it leans against a chair or lies down The fastener is less likely to press the back.

Therefore, the male fastener of the present invention is suitable for clothing, particularly as a bra fastener. In particular, the male fastener of the present invention is preferably used as a pair of fasteners made of a loop fabric as described above.

Hereinafter, the present invention will be described by way of examples.

[Loop fabric]
The warp yarn (multifilament yarn and monofilament yarn) and the weft yarn used as the raw material of the loop fabric are as follows.

[Warning yarn (multifilament yarn)] A multifilament yarn made of polyethylene terephthalate having a total decitex of 30 filaments of 165 dtex.
[Warning (monofilament yarn)] 400 dtex monofilament yarn made of polybutylene terephthalate.
[Weft] A multifilament yarn having a total decitex of 200 decitex made of 48 concentric core-sheath cross-sections made of polybutylene terephthalate having a melting point of 160 ° C. and having a core component copolymerized with polyethylene terephthalate and a sheath component of 35 mol% isophthalic acid. The ratio of the core component to the sheath component is 70:30.

[Loop Fabric Manufacturing Method]
[Example 1]
A loop fabric was woven using the warp and weft according to the woven structure diagram of FIG. Then, heat treatment was performed at 200 ° C. to melt the sheath component of the weft to fix the intersection of the warp and weft of the woven fabric, to fix the leg of the loop, and simultaneously to shrink the loop to reduce the loop height.

The obtained loop fabric is in a loop state as shown in FIG. 1. The loop leg spacing (D _L ) is 5 mm, the loop height (H _L ) is 1.7 mm, and H _L / D _L is 0.3. The loop density is 120 pieces / 10 cm ² , all the loop surfaces face in a direction parallel to the warp direction, and all the loops are arranged in a line in the weft direction, as described above (A1), ( It was comprised from the area | region of A2) and (B).

Note that the loop is formed by straddling nine wefts. Further, five wefts exist in the loop non-existing region (B). The weaving density of warp yarn (including monofilament yarn) is 72 yarns / cm, the weaving density of weft yarn is 20 yarns / cm, and monofilament yarns are driven at a rate of 1 in 5 warp yarns. In the loop fabric of the present embodiment, the area ratio of (B) in the total area of (A1) + (A2) + (B) is 40%, and the direction in which the loop is orthogonal to the loop surface as shown in FIG. There were 1 piece per 0.8 cm in the warp direction loop row length and 10 pieces per 1 cm in the weft direction loop row length.

The obtained loop fabric was cut in the region (B) so as to include two loop rows, and a loop fabric having a length of 15 mm was cut.

The loop fabric cut out was attached by sewing to the place where the round fastener attached to the back of the commercial brassiere was removed. On the other hand, a sheet having a large number of small corrugated hooks on the surface was attached by heat fusion to a place where the metal saddle fastener was attached.

The end portion to which the sheet having corrugated hooks thus obtained is attached and the sheet to which the loop fabric is attached are overlapped and engaged, and in that state, it is pulled by applying a tensile force of 20 kg, and then peeled off. When this process was repeated 500 times, no loop fabric was cut by the loop, and almost no loop surface was collapsed.

As a result of having five women wear the same thing as this brassiere and investigating the feeling of wearing, it is possible to finely adjust the chest circumference, and since there is no foreign body feeling on the back, It was popular.

When this loop fabric was used as a cover material for the cushion part of a table chair, there was no cold at the time of sitting like natural leather or vinyl leather even in a cold winter, which was also popular.

[Example 2]
In Example 1 described above, a loop fabric was manufactured by the same method and the same method except that the woven structure was replaced with that shown in FIG. The obtained loop fabric is in a loop state as shown in FIG. 2, the loop leg interval (D _L ) is 10 mm, the loop height (H _L ) is 1.1 mm, and H _L / D _L is 0.12. The loop density is 80 pieces / 10 cm ² , all the loop surfaces are oriented in a direction parallel to the warp direction, and all the loops are arranged in the weft direction, as described above in (A1) and (A2) Consisted of areas.

Note that the loop is formed by straddling 19 wefts. The weaving density of warp yarn (including monofilament yarn) is 72 yarns / cm, the weaving density of weft yarn is 20 yarns / cm, and monofilament yarns are driven at a rate of 1 in 5 warp yarns. In the loop fabric of this example, as shown in FIG. 2, the loops are arranged in a row in a direction perpendicular to the loop surface, one per warp direction loop row length of 1.3 cm, and the weft direction loop row length. There were 10 per cm.

The obtained loop fabric was cut so as to include two loop rows, and a 22 mm long loop fabric was cut out. In this thing, the loop cut | disconnected in the cut location exists and it was inferior to the thing of Example 1 in the point of appearance.

The cut loop fabric was attached to the back of a commercial brassiere in the same manner as in Example 1. As in Example 1, when the engagement-tension-peel test was repeated 500 times, no loops cut by the loop of the loop fabric were found, and no loop surface was found to be tilted. . Further, as in Example 1, when used for a wearing test and a covering material for a table chair, the impression that it was extremely comfortable was obtained as in Example 1.

[Example 3]
In Example 1, a loop fabric was manufactured by the same method and the same method except that the woven structure was replaced with that shown in FIG. The obtained loop fabric was in a loop state as shown in FIG. 1, but the loop surface was inclined about 5 degrees from the warp direction. The loop leg spacing (D _L ) of this is 5 mm, the loop height (H _L ) is 1.7 mm, H _L / D _L is 0.3, the loop density is 120 pieces / 10 cm ² , and all The loops are arranged in the weft direction, and are composed of the regions (A1), (A2) and (B) described above. Therefore, it was almost the same as that of Example 1 except that the loop surface was inclined by about 5 degrees as described above.

The cut loop fabric was attached to the back of a commercially available brassiere in the same manner as in Example 1, and the same test as in Example 1 was conducted. Further, the same wearing test as in Example 1 and the test as a covering material for the chair were conducted. As a result, since the loop surface was slightly inclined, the tensile force was concentrated on one leg, and the loop was cut slightly. Other than that, it was superior to that of Example 1 and was excellent. As for the use of the covering material of the chair, it was extremely excellent as in the case of Example 1.

[Comparative Example 1]
In Example 1, the number of straddling yarns in the portion where the loop is formed is changed from nine to three, and the monofilament yarn has a large margin in the loop portion so that a high height loop is formed, A loop fabric was produced in the same manner as in Example 1 except for the above.

The obtained loop fabric is in a loop state like a loop element fabric of a hook-and-loop fastener, and the shape of the loop is narrow at the loop root, wide at the middle of the loop height, and narrow again at the loop apex. It was a shape. This loop fabric has a loop leg spacing (D _L ) of 1.5 mm, a loop height (H _L ) of 1.8 mm, H _L / D _L of 1.2, and a loop density of 240 pieces / 10 cm ² . And most of the loop faces in the direction parallel to the warp direction, and all the loops are arranged in the weft direction, and is composed of the regions (A1), (B), (A2) and (B) described above. It had been.

When the obtained loop fabric was cut so as to include two loop rows and the loop fabric was cut out, the length was as short as 5 mm. The cut loop fabric was attached to the back of a commercially available brassiere in the same manner as in Example 1, and the same test as in Example 1 was performed. Further, the same wearing test as in Example 1 and the test as a chair covering material were also performed. As a result, in the repeated test of engagement and separation, the loop surface tilted each time it was repeated, making it difficult to engage. Similarly in the wearing test, it was difficult to engage as early as one week later.

When observing the loop fabric that became difficult to engage, many of the loops were tilted or collapsed due to the tensile force in the transverse direction, and as a result, it seems that they became difficult to engage. In addition, when used as a covering material for a chair, it was not comfortable because of the rough texture, and some loops were randomly collapsed or tilted, which detracted from aesthetics.

[Comparative Example 2]
In Example 1, a loop fabric was formed in the same manner as in Example 1 except that the monofilament yarn forming the loop was changed to a polybutylene terephthalate-based multifilament yarn comprising 10 265 dtex filaments. In this loop fabric, the loop is formed from a multifilament yarn, not a monofilament yarn.

This loop fabric was tested in the same manner as in Example 1, and further a wearing test similar to that in Example 1 and a test as a chair covering material.

As a result, each time the engagement / peeling was repeated, the number of filaments constituting the multifilament yarn increased, and the engagement force rapidly decreased. Even in the wearing test, the engagement force decreased after one month, and it became unusable. Further, when used as a covering material for a chair, there was no waist in the loop, and the tactile sensation was not much different from a conventional general fabric.

[Comparative Example 3]
In Example 1, a loop fabric was manufactured in the same manner as in Example 1 except that the monofilament yarn was drawn large in the loop portion so that a loop having a high height was formed in the part where the loop was formed.

The obtained loop fabric is in a state in which tall loops are arranged in a line on the fabric surface, and the loop leg distance (D _L ) of this loop fabric is 5 mm, and the loop height (H _L ) is 2. 7 mm, H _L / D _L was 0.5. Most of the loop surfaces face a direction parallel to the warp direction, and all the loops are arranged in the weft direction, and are composed of the regions (A1), (A2), and (B) described above.

The cut loop fabric is attached to the back of a commercial brassiere in the same manner as in Example 1, and the same test as in Example 1 is performed. Further, the same wearing test as in Example 1 and the test as a covering material for the chair are also performed. It was. As a result, in the repeated test of engagement and separation, the loop surface tilted and fell each time it was repeated, making it difficult to engage. Similarly, in the wearing test, it was difficult to engage after one month.

Also, when used as a covering material for chairs, it is not a comfortable material to sit for a long time because of the touch that gives a foreign body feeling, and there are also some items that have fallen or tilted loops. Was damaged.

[Example 4]
[Manufacture of male fasteners]
A polyester elastomer (Hytorel manufactured by Toray Du Pont Co., Ltd., surface hardness: 68) is melt-extruded from a nozzle as shown in FIG. 13 (however, the stem slits are present on the 17 substrate slits at equal intervals), cooled, As shown in FIG. 12, a stem that protrudes from the surface of the substrate, and a stem that has a cross-sectional shape such that a protrusion extending continuously in a direction parallel to the substrate exists at the tip of the stem. The tape which has the line for use and protrusion part on the surface was shape | molded. Then, cuts are made at equal intervals of 0.5 mm from the leading end of the tape row to the base at a cut angle of 0 degrees (ie, perpendicular to the tape length direction), and the tape is stretched 2.5 times in the length direction. A male fastener was made.

[Shape of male fastener]
In the obtained male fastener, the height (b) of the pocket formed by the substrate, the stem and the protrusion is 0.9 mm, and the ratio of the depth (a) of the pocket to the height (b) of the pocket (A / b) was 1.3.

The stem height (H) is 1.1 mm, the projection distance (S2) from the top surface of the stem to the tip of the protrusion is 1.4 mm, and the length (W) in the length direction of the stem and the protrusion is 1. The distance between the stems in the Y direction (S1) is 1.4 mm, the distance between the stems in the column direction (D) is 2.0 mm, the cross sections of the stems and the protrusions are all quadrilaterals, and the area is 0. 2 mm ² , stem density is 18 / cm ² , the number of engaging elements per 1 cm in the Y direction stem row is 5 / cm, the number of stem rows per 1 cm in the X direction is 5 / cm, the thickness of the substrate The thickness was 0.2 mm. In this male fastener, the substrate is stretched, but the stem and the protrusion are not stretched. The upper surface of the protrusion was a flat surface parallel to the substrate surface. The obtained male fastener was sewn on a cotton cloth with a width of 40 mm × length of 30 mm (sewing needle # 14, thread pitch 3 mm).

[Loop fabric]
As raw materials, the same multifilament yarn for warp as that used in Example 1, monofilament yarn and weft for warp and used as a loop were used.

[Loop Fabric Manufacturing Method]
A loop fabric was woven using the warp and weft according to the woven structure diagram of FIG. Then, heat treatment was performed at 200 ° C. to melt the sheath component of the weft to fix the intersection of the warp and weft of the woven fabric, to fix the leg of the loop, and simultaneously to shrink the loop to reduce the loop height.

The obtained loop fabric is in a loop state as shown in FIG. 1. The loop leg spacing (D _L ) is 5 mm, the loop height (H _L ) is 1.7 mm, and H _L / D _L is 0.3. The loop density was 120/10 cm ² , and all the loop surfaces were parallel to the warp direction, and all the loops were arranged in a row in the weft direction.

In addition, the loop was formed by straddling nine wefts. The weaving density of warp yarn (including monofilament yarn) was 72 yarns / cm, the weaving density of weft yarn was 20 yarns / cm, and monofilament yarns were driven at a rate of 1 in 5 warp yarns. In this loop fabric, as shown in FIG. 1, the loop surface is parallel to the warp, and such loops are arranged in rows in the direction perpendicular to the loop surface. There were nine per cm.

The obtained loop fabric was cut so as to include 4 rows of loops, and a 20 mm long loop fabric was cut out and attached to a cotton fabric by sewing.

[Performance of male fasteners]
The male fastener sewn on the cotton cloth obtained as described above and the loop fabric are arranged so that the protrusions of the male fastener and the loop surface of the loop fabric are orthogonal to each other, and the male fastener The tip of the protrusion was engaged from an obliquely upward direction so that the tip of the protrusion was inserted into the loop. And when the shear peeling strength when it pulled by the autograph (made by Shimadzu Corp.) with the pulling speed of 300 mm / min in the shear direction was measured, it resulted in having a strength of about 100N. Almost no deformation was observed in the stem and the protrusion after peeling.

[Use as a bra fastener]
The male clip and loop fabric cut out above were attached to the back of a commercial brassiere so that the protrusions of the male clip and the loop surface of the loop fabric were orthogonal to each other, and were worn by a woman, and the wearing feeling was investigated. . As a result, fine adjustment of the chest circumference was possible, and the feeling of the back portion was not tingled, and even when the back was pressed against the back of the chair, there was no pressing feeling by the male fastener, which was very popular. And this wearing test was done for a total of 8 weeks, and it was washed 55 times in the middle, but there was almost no change in the engagement force, and there was no change in both the male fastener and the loop fabric. Furthermore, no problems such as tearing of the substrate from the perforation occurred at the sewing location where the fastener was fastened.

[Examples 5 to 6, Comparative Examples 4 to 5]
In Example 4, a male fastener having a head height as shown in Table 1 was manufactured by changing the height of the stem and the protruding length of the protrusion.

And like Example 4, it was made to engage with the loop fabric manufactured in Example 4, and the engaging force was measured. The results are shown in Table 1. Table 1 also shows the performance when used as a bra fastener. All of the examples can be finely adjusted in length, and are inferior to those of Example 4, but some of the fasteners may press the back and cause discomfort to the wearer. It was a little, and the evaluation that it was usable was obtained from the woman who cooperated with the wearing test.

[Examples 7 to 8 and Comparative Examples 6 to 7]
In Example 4, a male fastener having a ratio (a / b) of the depth of the pocket to the height of the pocket as shown in Table 2 was manufactured by changing the protruding length of the protrusion.

And like Example 4, it was made to engage with the loop fabric manufactured in Example 4, and the engaging force was measured. The results are shown in Table 2. The table also shows the performance when used for bra fasteners. As a result, all of them could be finely adjusted according to changes in the chest circumference.

[Comparative Example 8]
In Example 4, as shown in FIG. 15, the stems and protrusions are rounded in a direction perpendicular to the tape length direction, and the tip portion is rounded and bent downward as shown in FIG. The same thing except that it has a so-called corrugated shape is the same as in Example 4, the male fastener is made into a corrugated male engaging element by inserting the slit into the stem and stretching. A fastener having the same was produced. The height and cross-sectional area of the element, the height and depth of the pocket, the element spacing, the element density, and the like are the same as those in the fourth embodiment.

This male fastener was tested in the same manner as in Example 4 and then the same wearing test as in Example 4.

As a result, the stem was corrugated with the tip pointing downward, making it difficult to engage with the loop fabric, and a peel strength of only 30 N was obtained, resulting in a low peel strength. Even in the wear test, the engagement with the loop was reduced, so it was difficult to hook onto the loop part, it was difficult to use, and was not worthy of performing the wear test. It was difficult to match, and the engaging force was weak, and a part of the fastener pressed the back, giving the wearer discomfort.

[Comparative Example 9]
In Example 4, as shown in FIG. 16, except that a stem that rises from the substrate is inclined from the rising portion in a direction intersecting the tape length direction at an angle of 40 degrees with the substrate is used. The same as Example 4 was prepared in the same manner as Example 4. The obtained male fastener was tested in the same manner as in Example 4, and the same wearing test as in Example 4 was performed.

As a result, because the stem is inclined in the same direction, it is easy to engage with the loop surface fabric. However, if the stem is moved or slackened, it is easy to peel off, and the peel strength is only 10 N, and the peel strength is extremely weak. became. Even in the wearing test, the engagement with the loop fabric was easily disengaged, making it difficult to use. Moreover, the loop of the loop fabric was slightly cut during the wearing test.

[Comparative Example 10]
Example 1 is the same as Example 1 except that a multifilament yarn made of ordinary polyethylene terephthalate is used as the weft yarn of the loop woven fabric, and 48 yarns having a total decitex of 200 dtex are used. A loop fabric was produced in the same manner.

The obtained loop fabric was in the same state as in Example 1 except that the ground warp and the loop were not fixed. Further, a test and a wearing test were conducted in the same manner as in Example 1.

As a result, since the loop yarn was not fixed to the base fabric, the loop yarn was very easy to come off, and the loop was pulled out from the base fabric by repeating the peeling several times. Moreover, when observed closely, the part where the loop extended and the part where the loop adhered to the base fabric part was mixed, and the shape name was difficult to engage with the hook. And since the warp was not fixed, the base fabric was in a wavy state.

In the wearing test, a feeling of looseness was recognized as the posture changed, and it was confirmed that the loop yarn extended from the base fabric portion. This seems to be because tension was applied in the posture at the time of wearing and the loop extended from the base fabric by the tension. And once the loop stretches, it becomes a loop that is very difficult to engage, so it was repeatedly used, but the brassiere could not be fastened.

This application is based on Japanese Patent Application No. 2014-054093 filed on Mar. 13, 2014 and Japanese Patent Application No. 2014-193698 filed on Sep. 24, 2014. Are included in this application.

In order to express the present invention, the present invention has been properly and sufficiently described above with reference to specific embodiments and drawings. However, those skilled in the art can easily change and / or improve the above-described embodiments. It should be recognized that it can be done. Therefore, unless the modifications or improvements implemented by those skilled in the art are at a level that departs from the scope of the claims recited in the claims, the modifications or improvements are not limited to the scope of the claims. To be construed as inclusive.

The present invention has wide industrial applicability in technical fields such as loop fabrics, fasteners and clothing products.

Claims

A woven fabric composed of warps and wefts, 180-1000 dtex monofilament yarn is used as part of the warp yarn, and the warp yarn composed of the monofilament yarn is lifted from the fabric surface to form a loop. The distance (D L ) is 4 to 15 mm, the loop height (H L ) is 0.5 to 2.5 mm, H L / D L is 0.1 to 0.4, and the loop density is 40 to 300. / 10 cm 2 , a loop fabric in which the loop surface is substantially parallel to the warp, the loop is aligned with the legs aligned in the weft direction, and the loop legs are fixed to the fabric.
There are warp yarns (W 2 ) made of monofilament yarns for every plurality of warp yarns (W 1 ) made of multifilament yarns, and W 1 changes floating and sinking every time it intersects the weft yarns, and W 2 is a weft yarn The weft yarn is a yarn made of heat-fusible fiber, and the following loop regions (A1) and (A2) are alternately or between (A1) and (A2). The loop fabric according to claim 1, wherein the loop fabric is alternately present via the loop absence region (B).
(A1): W 2 changes floating and sinking every time it intersects with the weft, but W 2 existing next to W 2 is a region that crosses the weft and forms a loop on the fabric (A2 ): W 2 straddles the weft and forms a loop on the fabric, but W 2 existing next to W 2 changes the float and sink each time it intersects the weft (B): W 2 and regions that are changing the float and sink in each intersecting with the W 2 are both weft that is present next to it
The loop woven fabric according to claim 1 or 2, wherein both legs of the loop are fixed to the woven fabric by heat fusion of wefts.
The loop fabric according to any one of claims 1 to 3, wherein the weft is a multifilament yarn made of a core-sheath cross-sectional composite fiber whose sheath component is made of a low melting point resin.
The loop fabric according to any one of claims 1 to 4, wherein the weft, the W 1 and the W 2 are both made of a fiber made of a polyester resin.
W 1 is a polyethylene terephthalate resin, W 2 is a polybutylene terephthalate resin, the core component of the core-sheath cross-section composite fiber constituting the weft is a polyethylene terephthalate resin, and the sheath component is polyethylene terephthalate or polybutylene terephthalate. The loop fabric according to claim 5, comprising a copolymerized polyester resin.
The loop fabric according to any one of claims 1 to 6, wherein the loop is formed by straddling 7 to 25 wefts.
The loop fabric according to claim 2, wherein 3 to 7 wefts are present in the loop absence region (B).
A fastener comprising a loop fabric according to any one of claims 1 to 8.
The fastener according to claim 9, wherein the fastener is a brass fastener.
A chair in which the loop fabric according to any one of claims 1 to 8 is used as an upholstery material for a seating surface.
A tatami mat or rug in which the loop fabric according to any one of claims 1 to 8 is used as a substitute for a tatami mat.
A male fastener used in a pair with the fastener according to claim 9,
On the surface of the resin substrate, a large number of stems that rise almost vertically from the surface of the substrate are arranged in a row, and each stem protrudes from the tip of the stem in a direction that intersects the stem row direction and parallel to the substrate. Furthermore, the protrusions of all the stems protrude from the stem in the same direction, and the height (b) of the pocket formed by the substrate, the stem and the protrusions is 0.3-2. A male fastener in the range of 0.5 mm and the ratio of the depth (a) of the pocket to the height (b) of the pocket (a / b) is in the range of 0.5-3.
The male fastener according to claim 13, wherein the substrate is stretched but the protrusion is not stretched.
The male fastener according to claim 13 or 14, wherein each of the substrate, the stem, and the protrusion is formed of a thermoplastic resin having a surface hardness of 60 to 80.
The male fastener according to claim 15, wherein the thermoplastic resin is a polyester elastomer.
The male fastener according to claim 15 or 16, wherein the thermoplastic resin is nylon 12.
The stem and the projecting portion have a quadrilateral cross-sectional shape, and the stem cross-sectional area at the middle height portion of the stem and the cross-sectional area of the projecting portion at the middle portion of the projecting length of the projecting portion are both 0.2 to The male fastener according to any one of claims 13 to 17, which is in a range of 0.8 mm 2 .
The male fastener according to any one of claims 13 to 18, wherein stems are present on the substrate at a density of 5 to 40 per 1 cm 2 of the substrate.
A garment in which the fastener according to claim 9 and the male fastener according to any of claims 13 to 19 are used as a pair.
The garment according to claim 20, wherein the garment is a brassiere.