JP2016016200A - Fabric loop fastener piece with ear and its manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide textile fabric loop fastener pieces with ears that eliminate the need for scraping off the engaging element yarn and melting the engaging element yarn for forming the ears, and are superior in a sense of feeling and flexibility.SOLUTION: Fabric loop fastener pieces with ears comprise engaging element parts (A) with engaging elements projected and formed of the engaging element yarn existing on the surface of base fabric formed of ground warp, ground weft and engaging element yarn, and ears (B) without the engaging elements existing on the surface of the base fabric. The fabric loop fastener pieces with ears are characterized in that the ears (B) surround the periphery around the (A) with a width of 1-5 mm and the ears (B) becomes the end. The ears (B) comprise: warp ears (B1) formed of the ground warp and the ground weft; and weft ears (B2) formed of the ground warp, the ground weft and the engaging element yarn, and having the engaging element yarn interwoven in the base fabric while maintaining a state of continuous yarn. The warp ears (B1) and the weft ears (B2) are in an orthogonal state.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an engagement element portion in which an engagement element formed by projecting the engagement element yarn on the surface of a woven fabric is present, and an ear portion comprising an ear portion surrounding the periphery of the engagement element portion The present invention relates to an attached cloth surface fastener piece and a method of manufacturing the same.

  Conventionally, as hook-and-loop fasteners made of cloth, there are hook-like or loop-like engaging elements formed by projecting a large number of engaging element yarns on the surface of the fabric base fabric, and both sides thereof. A small piece of cloth surface fastener provided with an ear portion where no engaging element exists is known. Such a small surface fastener made of cloth can be sewn to a predetermined position accurately and reliably by sewing the ear portion to the cloth with a sewing needle or a hand-sewn needle when attaching to a cloth or the like by sewing. Moreover, since the engaging element is not tilted by the sewing thread by sewing, it is widely used because of the merit that the appearance of the sewing product is good.

Usually, cloth hook-and-loop fastener pieces are manufactured by producing a wide and long hook-and-loop fastener and cutting it in a width direction and a length direction with a predetermined width and length. And in order to improve the sewing property and appearance of such a hook-and-loop fastener piece, the method of forming an ear | edge part in the both ends of the width direction is performed. As a method for forming the ear portion, several methods have been conventionally known.
For example, Patent Document 1 describes a method in which the engaging elements existing at both ends in the width direction of the engaging element part are trimmed at the roots to form the ear part.

  However, in the case of this method, cutting scraps are generated in the cutting process, and the generated cutting scraps adhere to the processing equipment and cause malfunctions of the equipment, or are scattered around and contaminate the work environment. In addition, it has a problem that it adheres to the worker's face and the worker's clothes. Further, there arises a problem that the cutting scraps are entangled with the engaging element and the appearance of the surface fastener is impaired.

  Although the patent document 1 describes forcibly removing the generated cutting scraps with air, it cannot be completely removed. Furthermore, in the case of this method, when the engaging element is a hook surface fastener made of a thick monofilament, when the stump of the engaging element remaining on the cut surface touches the skin, it gives a tingling and unpleasant tactile sensation. Will hurt your skin.

  As a method for solving this problem, a method of cutting the engagement element deeper from the root is conceivable. However, if it is attempted to cut more from the root, the surface of the base fabric is inevitably easily cut off at the same time. The warp and the weft will be shaved, and the ground warp and the weft will be shaved and the base fabric will be easily torn. For example, when sewing, the hook-and-loop fastener will be torn easily from the portion of the sewn thread.

  As a method of solving such problems of the tingling feeling of the stump by cutting the engaging element and the ease of tearing of the base fabric by scraping the base fabric, Patent Document 2 discloses a method of melting the stump by heating. Have been described. However, generally, when a stump is melted, the melted portion becomes hard and a new problem arises that the feeling of touch is deteriorated.

  As described above, any of the conventionally known methods of forming the ears at both ends in the width direction is a method of cutting or engaging and crushing the engaging elements existing in the ears. The above-mentioned problems occur due to the fusion of the stumps.

As a method of fundamentally solving such a problem, when weaving the hook-and-loop fastener, it is conceivable to remove the engagement element yarns at both ends in the weft yarn direction in advance to weave the ears.
With respect to the ears at both ends in the weft direction, it is possible to eliminate the above-mentioned problems by using this method. However, with respect to the ears formed at both ends in the ground warp direction, the engagement element Since the yarn is woven continuously in parallel with the ground warp yarn, it is impossible to remove the engagement element yarn in advance to form the ear portion.

JP-A-2004-57350 (column of claims) JP 2014-27989 A (column of claims)

  The present invention solves such problems, that is, not only ears that exist at both ends of the weft direction, but also ears that exist at both ends of the ground warp direction, as in the prior art, The engagement element yarn is not scraped off or melted to form the ear portion, and as a result, the problem is caused by scraping scrapes and stumps by the cut engagement element yarn, or by deep cutting. There are no problems such as damage to the base fabric, and there is no problem that the ear part becomes stiff by melting the engagement element thread existing in the ear part, and there is no problem that the feeling of touch deteriorates, and both ends of the weft direction and the ground warp thread An object of the present invention is to provide a woven hook-and-loop fastener piece having ears at both ends in the direction, that is, a hook-and-loop fastener piece in which all four sides around the portion where the engaging element is present are surrounded by the ear part. Stuff .

  That is, the present invention provides an engagement element portion in which an engagement element formed by projecting the engagement element thread is present on the surface of a base fabric formed from ground warp, ground weft and engagement element thread ( A) and an ear portion (B) in which no engaging element is present on the surface of the base fabric, and the ear portion (B) surrounds the periphery of (A) with a width of 1 to 5 mm. ) Is a piece of cloth hook-and-loop fastener with ears, and the ears (B) include warp ears (B1) formed from ground warps and ground wefts, ground warps, ground wefts. And the engagement element yarn is composed of a weft ear portion (B2) woven into the base fabric while maintaining a state of a continuous yarn, and a transaural portion (B1) and a weft ear portion ( B2) is a piece of cloth hook-and-loop fastener with ears, characterized in that it is in an orthogonal state.

Preferably, in the present invention, the ground warp yarn, the ground weft yarn, and the engagement element yarn constituting the base fabric are all yarns formed from a polyalkylene terephthalate polyester, and The invention is a cloth surface fastener piece with ears in which the weft yarn includes a core-sheath type heat-fusible polyester fiber, and the engagement element yarn is fixed to the base fabric by the heat-fusible fiber. .
Preferably, in the present invention described above, the cloth surface with the ears, in which the thread for the engagement element is woven into the trans-ear part (B1), and the thread for the engagement element maintains a continuous yarn state. It is an invention of a fastener piece.

Further preferably, in the above-mentioned present invention, the engagement element portion (A) is cut into a quadrangle parallel to the ground warp and the weft so that the periphery of the engagement element portion (A) is surrounded by the ear portion (B), and the corners of the four corners are cut. It is an invention of a cloth hook-and-loop fastener piece with an ear portion that is cut out in a round shape.
More preferably, in the above-mentioned invention, the invention is a fabric hook-and-loop fastener piece with an ear portion in which an adhesive resin layer is present on the back surface of the base fabric.

Moreover, this invention is a manufacturing method of the cloth surface fastener piece with an ear | edge part characterized by performing the following processes (1)-(5) sequentially. However, the operation of making a break in step (4) and step (5) may be performed simultaneously.
(1) Using a loop forming device in which the reciprocating motion of the hook frame for forming the engagement element is controlled from the ground warp, the ground weft and the engagement element yarn by an electric signal, the engagement element yarn is applied to the surface of the fabric. The region where the loop is formed and the region where the loop is not present alternately exist in the ground warp direction, and the engagement element is adjacent to the region where the engagement element exists in the ground weft direction. Manufacturing a long woven fabric in which a non-existing region exists,
(2) A step of melting a part of the yarn constituting the fabric or applying a resin to the back of the fabric to fix the base fabric and the engaging element,
(3) when the engaging element is a hook-shaped engaging element, cutting one leg of the loop to make the loop shape a hook shape;
(4) A notch is formed parallel to the ground warp yarn in the engagement element non-existing region existing on both sides of the engagement element portion in the ground weft direction, and both ends of the engagement element portion (A) are arranged in the ground warp direction. Manufactures a long hook-and-loop fastener in which the translucent part (B1) is continuously present in the part and the engaging element part (A) and the engaging element non-existing area are alternately present in the ground warp direction. The process of
(5) The engagement element portion (A) and the engagement element non-existence region alternately exist in the ground warp direction, and the engagement element non-existence region is cut in parallel to the ground weft. A step of dividing the periphery of (A) into small pieces of hook-and-loop fasteners surrounded by a translucent portion (B1) having a width of 1 to 5 mm and a weft ear portion (B2) having a width of 1 to 5 mm;

  According to the present invention, the ear portion surrounding the engaging element portion is not formed by cutting away the existing engaging element yarn, and is originally woven so as not to form the engaging element loop. ing. Therefore, unlike the prior art, it is not necessary to reap the thread for the engaging element, and there is no need for cutting off the thread for the engaging element, thereby causing troubles to the equipment, deterioration of the work environment, and poor appearance. Etc., no discomfort or scratches caused by stumps, and deterioration of the base fabric due to the shaving of the base fabric. Furthermore, it does not have a problem of curing the base fabric by heating to melt the stump.

  Moreover, in the hook-and-loop fastener piece of the present invention, since the four sides are surrounded by the ears of a certain width, the sewing needle can be easily run on the ears in a straight line, and the cloth to be attached can be accurately Since the hook-and-loop fastener piece attached to the cloth or the like can be firmly sewn at any position, it can be confirmed that the ear portion is firmly attached by sewing, so that it is excellent in terms of appearance.

It is the surface fastener small piece of this invention, Comprising: It is the figure which expanded and image | photographed the boundary part of the hook-shaped engagement element part in a ground warp direction, and an ear | edge part. It is the hook-and-loop fastener piece which cut the hook-shaped engagement element according to the prior art, and formed the ear | edge part, and is the figure which expanded and image | photographed the boundary part of the hook-shaped engagement element part and an ear | edge part in the ground warp direction. It is a hook-and-loop fastener piece in which a hook-shaped engagement element is melted and crushed according to the prior art to form an ear part, and is an enlarged photograph of a boundary part between the hook-shaped engagement element part and the ear part in the ground warp direction. . It is the surface fastener small piece which did not form the ear | edge part but left the hook-shaped engagement element, and is the figure which expanded and imaged the cut-out part. It is a perspective view of an example of the long surface fastener which spreads in the ground warp direction before dividing into the surface fastener small piece of this invention, and a weft direction.

The cloth surface fastener piece of the present invention may be a hook surface fastener piece or a loop surface fastener piece. Furthermore, it may be a hook / loop mixed hook-and-loop fastener piece in which hook-like engaging elements and loop-like engaging elements are mixed on the surface.
The hook hook-and-loop fastener is mainly formed from a hook-shaped engagement element monofilament yarn, ground warp yarn and ground weft yarn. On the other hand, the loop hook-and-loop fastener to be engaged with the hook hook-and-loop fastener is mainly formed from a loop-shaped engaging element multifilament yarn, ground warp and ground weft. In addition, the hook / loop mixed surface fastener in which the hook-like engagement element and the loop-like engagement element are mixed on the same surface mainly includes the monofilament yarn for the hook-like engagement element, the multifilament yarn for the loop-like engagement element, It is formed from ground warp and ground weft.

And these hook-and-loop fasteners may be woven with yarns other than these if necessary.
These main yarns may be made of nylon or polyolefin fibers, but they are wavy due to heat, water absorption and moisture absorption (the surface of the surface fastener is irregularly raised and lowered and does not become a horizontal surface) In view of the fact that a higher engaging force can be obtained, it is preferable that both are substantially composed of a polyalkylene terephthalate-based polyester.

Polyalkylene terephthalate-based polyester is a polyester mainly composed of ethylene terephthalate units or polyester mainly composed of butylene terephthalate units, and is obtained mainly by a condensation reaction from terephthalic acid and ethylene glycol or a condensation reaction from terephthalic acid and butanediol. Polyester.
If some, polymer units other than terephthalic acid and ethylene glycol, or other than terephthalic acid and 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, and aliphatic or alicyclic dicarboxylic acids such as adipic acid, sebacic acid, and cyclohexanedicarboxylic acid. Acids, propylene glycol, butanediol (in the case of polyesters mainly composed of ethylene terephthalate units), ethylene glycol (in the case of polyesters mainly composed of butylene terephthalate units), diols such as cyclohexanedimethanol, hydroxybenzoic acid, lactic acid, etc. Examples thereof include monocarboxylic acids represented by oxycarboxylic acid, acetic acid and benzoic acid. Furthermore, a small amount of other polymers may be added to the polyester.

  Preferably, when the ground warp yarn and the engagement element yarn other than the ground weft are made of polyethylene terephthalate homopolymer or polybutylene terephthalate homopolymer, the loop-like engagement element yarn is made of polybutylene terephthalate homopolymer. The on-hook engaging element is made of polyethylene terephthalate homopolymer, and in this case, high engaging force and fall resistance, and excellent shape stability can be obtained.

  In any case, a polyethylene terephthalate system having a melting point that does not melt at the heat treatment temperature for fusing the sheath component of the core-sheath type heat-fusible fiber constituting the weft which is a preferred example of the present invention described later. Polyester or polybutylene terephthalate-based polyester is preferably the main component constituting the yarn. In addition, the above-mentioned polyester fiber may be mixed with other fibers or blended as necessary.

  As the ground warp yarn, a multifilament yarn is preferable, and as the thickness of the multifilament yarn constituting the ground warp yarn, a multifilament yarn having a total decitex of 16 to 96 filaments of 75 to 250 dtex is preferable. A multifilament yarn having a total decitex of ~ 48 filaments of 100 to 200 dtex is preferred.

  As the weft yarn, a multifilament yarn is preferable, and as the thickness of the multifilament yarn constituting the weft yarn, a multifilament yarn having a total decitex of 12 to 60 filaments of 50 to 300 dtex is preferable, particularly 24 Multifilament yarns having a total decitex of ~ 48 filaments of 75 to 250 dtex are preferred.

  The ground weft preferably contains heat-fusible fibers. A typical example of the heat-fusible fiber is a core-sheath type heat-fusible fiber having a sheath component as a heat-fusible component. Since the ground weft contains heat-fusible fibers, it is possible to firmly fix the engagement element yarn to the base fabric, and the engagement element yarn is pulled out of the base fabric like a conventional surface fastener. In order to prevent this, it is not necessary to apply a polyurethane-based or acrylic-based back coat resin to the back surface of the hook-and-loop fastener base fabric.

  It is possible to fix the engagement element yarn to the base fabric by using heat-fusible fibers instead of the ground weft yarn, but the engagement element yarn is driven into the base fabric in parallel to the ground warp yarn. As a result, the ground warp yarn has much fewer points of intersection with the engagement element yarn than the weft yarn. Therefore, when the heat-fusible fiber is used only for the ground warp yarn, the engagement element yarn is the base fabric. In addition, when heat-fusible fibers are used for the ground warp, it is difficult to keep the tension applied to the running base fabric constant, and to maintain a constant quality. It is likely to be difficult to produce a surface fastener stably and continuously.

  As the core-sheath type heat-fusible fiber described above, the polyester component that melts the sheath component to firmly fix the root of the monofilament yarn for hook-like engagement element or the multifilament yarn for loop-like engagement element to the base fabric For example, polyester fibers having a core-sheath type cross section in which the core component does not melt under heat treatment conditions but the sheath component melts are mentioned.

  Specifically, polyethylene terephthalate is used as a core component, and a copolymer component represented by isophthalic acid or adipic acid 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 type polyester fiber having a copolymer polyethylene terephthalate as a sheath component. The melting point or softening point of the sheath component is 150 to 220 ° C., and is 10 to 150 ° C. lower than the melting point of the ground warp yarn, the core component, the monofilament yarn for hook-like engagement element or the multifilament yarn for loop-like engagement element. Is preferred. 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 in the fibers constituting the ground weft is particularly when all of the ground wefts are substantially formed of the core-sheath type heat-fusible fiber, that is, When the ground weft is a multi-filament yarn made of a core-sheath type heat-fusible filament, both the hook-like engagement element yarn and the loop-like engagement element yarn must be firmly fixed to the base fabric. This is preferable.

  If the fiber constituting the weft is not a core-sheath cross-sectional shape and the entire cross-section of the fiber is formed of a heat-fusible polymer, the heat-fusible polymer that has melted and solidified again becomes brittle and easily cracked. When sewing, etc., the base fabric is easily torn from the thread portion. Therefore, the heat-fusible fiber preferably contains a resin that is not heat-sealed, and preferably has a cross-sectional shape of the core-sheath. And the weight ratio of the core component and the sheath component is preferably in the range of 20:80 to 80:20, particularly in the range of 40:60 to 60:40.

  Furthermore, in order to firmly fix both the hook-like engagement element yarn and the loop-like engagement element yarn to the base fabric, the heat-fusible fiber used as the weft yarn is heat-sealed, and the fiber itself It is preferable that the base of the hook-like engagement element and the loop-like engagement element is tightened from both sides and the heat-fusible fiber used as the ground weft is a fiber that undergoes a large thermal shrinkage under heat treatment conditions. Is preferred. Specifically, a fiber having a dry heat shrinkage of 8 to 20% at 200 ° C. is preferably used, and a fiber having a shrinkage of 11 to 18% is particularly preferred.

  The hook-shaped engagement elements that make up hook hook-and-loop fasteners or hook-and-loop mixed hook-and-loop fasteners require so-called hook-shaped retention and rigidity that do not extend the hook shape with a light force. Therefore, monofilaments made of thick synthetic fibers Yarn is used. In the present invention, as the monofilament yarn, a monofilament yarn made of a polyester that is formed from a polyethylene terephthalate polyester particularly excellent in hook shape retention and does not melt at the temperature at which the heat-fusible fiber is heat-sealed is used. It is done.

  As the thickness of the monofilament yarn for hook-like engaging element made of such a polyethylene terephthalate polyester, those having a diameter of 0.14 to 0.25 mm can obtain a sufficient engaging force, and more preferably a diameter of 0.16 to 0.22 mm. And in order to raise engagement force, you may make the cross-sectional shape of this monofilament into the irregular cross-sectional shape represented by polygonal systems, such as a triangle and a square.

  Similarly to the hook surface fastener, the loop engaging element yarn constituting the loop surface fastener or the hook / loop mixed surface fastener is also composed of a polyalkylene terephthalate polyester, and when the heat-fusible fiber is heat-sealed. A multifilament yarn made of polyester that does not melt at this temperature, particularly polybutylene terephthalate, is preferable because the loops are spread and spread and the loops are not easily collapsed, so that high engagement strength can be obtained.

  The thickness of the multifilament yarn constituting the loop engaging element yarn is preferably a multifilament yarn having a total decitex of 5 to 12 filaments of 120 to 400 dtex, particularly 6 to 9 filaments. A multifilament yarn having a total decitex of 200 to 350 decitex is preferred.

  First, a fabric for a hook-and-loop fastener is woven from the above-described ground warp yarn, ground weft yarn, monofilament yarn for hook-like engagement element or multifilament yarn for loop-like engagement element. The woven structure of the woven fabric is preferably a plain weave having a monofilament yarn for hook-like engagement elements or a multifilament yarn for loop-like engagement elements as a part of the ground warp, and these engagement element yarns are parallel to the ground warp. While existing, the engaging element part (A) rises from the base fabric surface in the middle of the structure, and in the case of a hook surface fastener, it jumps between 1 to 3 ground warp yarns while forming a loop and wraps between the ground warp yarns. On the other hand, in the case of loop type surface fasteners, loops are formed without straddling the ground warp, and in the case of hook and loop mixed surface fasteners, these loops are formed in parallel with the ground warp. A woven structure that satisfies both requirements is preferable because it can efficiently cut one side of the loop for the hook-shaped engagement element, and the hook-shaped engagement element and the loop-shaped engagement element can be easily engaged. .

  The weft density of the ground warp is preferably 35 to 80 yarns / cm after the heat treatment, and the weave density of the weft yarn is preferably 15 to 30 yarns / cm after the heat treatment. Further, the weight ratio of the ground weft is preferably 15 to 40% with respect to the total weight of the hook-like engagement element yarn or the loop-like engagement element yarn constituting the woven surface fastener, the ground warp yarn and the weft yarn.

  Moreover, the number of hooks of the monofilament yarn for hook-like engagement element and the multifilament yarn for loop-like engagement element is 20 ground warps (monofilament yarn for hook-like engagement element or multifilament yarn for loop-like engagement element), respectively. About 3 to 8 are preferable. In the case of hook and loop mixed surface fasteners, a total of 20 monofilament yarns for hook-like engagement elements and multi-filament yarns for hook-like engagement elements (monofilament yarns for hook-like engagement elements and loop-like engagement) 3 to 8 are preferable, and the number ratio of the monofilament yarn for hook-like engagement element and the multifilament yarn for loop-like engagement element is in the range of 1: 1 to 1: 2. Is preferred.

  Next, the manufacturing method of the cloth surface fastener piece with the ear | edge part of this invention is demonstrated in detail. The cloth surface fastener pieces with ears of the present invention are manufactured by sequentially performing the steps (1) to (5) as described above.

  First, in the woven fabric used for the cloth surface fastener piece of the present invention, a region where the engaging element exists and a region where the engaging element does not exist are formed at the stage of weaving the woven fabric. As a specific forming method thereof, a method in which a loop forming apparatus in which the reciprocating motion of the collar frame for forming the engaging element is controlled by an electric signal is preferably used. That is, by controlling the reciprocating motion of the reed frame with an electric signal, a structure with a period using a very large number of ground wefts can be manufactured.

  In ordinary hook-and-loop weaving looms, the reciprocating motion of the reed frame is such that the height of a part generally called a card determines the vertical position of the reed frame, and the revolving motion of the reed frame is achieved by connecting and rotating the cards in a chain shape. Repeated exercise. However, when the cards are connected in a chain shape, the card must have a length that can be incorporated in the loom, so that there is a physical limitation on the period of reciprocating motion. The length limit varies depending on the type of loom, but it is usually the case that it is the limit to form a structure with a cycle of up to about 50 weft yarns.

  Controlling the reciprocating motion of the saddle frame with an electric signal means replacing the component that connects the cards in a chain with a component that is controlled with an electric signal. That is, there is no restriction on the length when the cards are connected in a chain shape, and it is possible to form a structure in which an extremely large number of ground wefts are driven, for example, the number of ground wefts driven is 1000 or more. And the loom in the case of controlling the reciprocating motion of a cocoon frame with an electric signal moves the cocoon frame up and down using an electric magnet or a motor.

  For example, for 30 to 80 ground weft yarns, the engagement element yarns are formed by forming loops on the base fabric after forming 5 loops after floating and sinking the 5 weft yarns. A portion, that is, an engagement element portion, and subsequent 10 to 30 weft yarns, the engagement element yarn is woven into the base fabric so as not to form a loop, and the engagement element does not exist. A hook-and-loop fastener fabric is produced in which the engagement element regions where the loops made of the engagement element yarns exist on the fabric surface and the regions where the loops do not exist alternately exist in the ground warp direction.

  In the weft yarn direction, the engagement element yarn is not woven from the beginning on both sides of the engagement element portion, so that the engagement element loop does not exist on both sides of the engagement element region in the ground yarn direction. Form. Of course, it is also possible to manufacture the region where the loop for the engagement element does not exist by weaving the thread for the engagement element and completely weaving the base fabric without forming the loop for the engagement element.

  As described above, in order to form a region where no engaging element is present in the ground weft direction, it is only necessary to pull out without using the engaging element yarn in advance. Of course, it is also possible to weave into the base fabric without forming the engagement element loop without removing the engagement element yarn. There is no element loop, but there is an engagement element thread. In this way, when the thread for the engaging element is woven into the base fabric without forming a loop in the trans-ear part (B1), the strength of the trans-ear part (B1) is improved and it is torn from the seam. Further, it is possible to prevent the transauricular portion (B1) from wavy.

  Usually, a woven surface fastener has a plurality of engagement element absence regions at equal intervals in the width direction in order to form a surface fastener having a predetermined width in the weft yarn direction after weaving a wide and endless surface fastener fabric. A method of forming a plurality of long surface fasteners at the same time by forming a cut in the middle of the engaging element absence region is used.

  In the present invention, the engagement element absence region is formed in the ground warp direction at the stage of weaving the wide and endless surface fastener fabric, and the engagement element absence region is also formed in the ground weft direction. The engagement element absence region in the direction of the weft is formed by making the engagement element yarn not exist in that portion, or by weaving in the base fabric so that the engagement element loop is not formed even if it exists. In the ground warp direction, the engagement element non-existing region has an engagement element loop on the surface of the fabric using a loop forming device in which the reciprocating motion of the hook frame for forming the engagement element is controlled by an electric signal. It is formed by weaving so that it does not.

  Of course, when the hook-and-loop fastener piece of the present invention is a wide piece having a width of 50 mm or more, it is not divided into a plurality of long hook-and-loop fasteners. Although it is possible to directly manufacture a single long surface fastener having a non-existing region, even in such a case, in order to prepare the engaging element non-existing region at both ends, the engagement on both sides in the weft direction is determined. It is preferable to cut the joint element absence region in parallel with the ground warp and remove the end of the engagement element absence region.

  In the hook-and-loop fastener piece of the present invention, the four sides of the engaging element part (A) are surrounded by the ear part (B), and the size of the engaging element part is 10 to 100 mm in width (weft direction). The length (ground warp direction) is preferably 10 to 100 mm. And as an ear | edge part, 1-5 mm in width is preferable. Particularly preferably, the engaging element portion has a width of 12 to 80 mm and a length of 12 to 80 mm, and the ear portion has a width of 1.5 to 4 mm.

  To explain with a specific example, a 26 mm × 20 mm × 20 mm engaging element portion (A) that is squarely surrounded by an ear portion (B) around which no engaging element with a width of 3 mm exists. When manufacturing a 26 mm hook-and-loop piece, first, at the stage of thread insertion, the portion of 20 mm width in the direction of the weft thread is inserted with the engaging element yarn, and the adjacent portion of 6 mm width is not inserted with the thread for the engaging element. Further, by repeating the insertion of the engagement element yarn into the next 20 mm width portion, an area where the engagement element yarn of 20 mm width exists and an engagement element absence area of 6 mm width exist in the weft yarn direction. Composed.

  The reed movement of the reed frame for forming the engagement element is performed by using a loop forming device controlled by an electric signal, and an engagement element region that forms a 20 mm wide loop in the ground warp direction. By setting and weaving so as to repeat the engagement element non-existence area that does not form a 6 mm wide loop, the engagement element area where the engagement element of 20 mm × 20 mm exists is 6 mm in the weft direction, and the ground A wide and long hook-and-loop tape is obtained which is arranged at an interval of 6 mm in the warp direction, and no engaging element loop exists in this 6 mm wide region.

  The sizes of the engaging element portion (A) and the ear portion (B) are preferably designed based on the number of ground warp yarns and weft yarns that are predicted to shrink the ground warp yarns and the weft yarns by heat treatment.

  Next, the surface fastener fabric thus manufactured is subjected to heat treatment. By this heat treatment, the loop shape of the loop for the engaging element is fixed, and the sheath component of the core-sheath type heat-fusible fiber of the weft constituting the base fabric is melted to act as a binder. The mold heat-fusible fibers cause heat shrinkage, and the base of the engaging element loop is firmly fixed. Usually, a temperature at which the heat-fusible component of the heat-fusible fiber melts and a non-fused component of the other fiber or the heat-fusible fiber does not melt, for example, a temperature in the range of 150 to 220 ° C. is employed. . Then, by dyeing as necessary, a hook-and-loop fastener fabric having a region where the engagement element loop exists and a region where the engagement element loop does not exist is obtained.

  When heat-fusible fibers are not used, a method of fixing the engagement element yarn or the base fabric by applying a polyurethane or acrylic adhesive (resin) to the back surface of the base fabric. It may be used. Preferably, a heat-sealable fiber is used and no adhesive is applied to the back surface. In such a case, the obtained cloth hook-and-loop piece is soft, and even if attached to clothing or the like, There is no significant loss of texture.

  Depending on the application to be used, a pressure-sensitive adhesive that can be bonded to metal or resin, or an adhesive that can be heat-bonded with an iron or the like may be applied to the back surface of the manufactured surface fastener fabric. .

  Next, when the woven surface fastener is a hook surface fastener or a hook / loop mixed surface fastener, one leg of the loop formed on the surface is cut to convert the loop into a hook-like engagement element. One leg can be cut by a method used in the production of a normal hook-and-loop fastener, and is performed by making a cut in one leg with a clipper or the like, or by removing one leg.

  FIG. 4 is a perspective view of an example of a wide and long hook-and-loop fastener obtained in this manner before a cut is made in a region where no engaging element is present, that is, before dividing into small pieces. A region (5 and 6) where no engaging element exists surrounds the engaging element portion (1). By making a cut in the central portion of the region where the engaging element does not exist, the hook-and-loop fastener piece with the ear portion of the present invention is obtained. In the figure, L represents the ground warp direction, and W represents the ground weft direction. When a cut is made in the region 5 where no engaging element is present, a transaural portion is formed, and when a cut is made in the region 6 where no engaging element is present, a weft portion is formed. In FIG. 4, there are four rows of engaging element portions in the weft yarn direction.

  Then, a cloth surface fastener piece having an ear portion is obtained by making a cut at the center of the region where there is no engaging element. First, a long cut having a warp (B1) is formed by cutting a cut parallel to the ground warp in the center of the engaging element absence region provided in parallel to the ground warp and continuing the fabric in the direction of the ground warp. The hook-and-loop fastener. Next, a weft ear (B2) is formed in the central portion of the engaging element absence region provided in parallel to the weft yarn to form a weft ear portion (B2), and a long and wide hook-and-loop woven fabric is formed into small pieces. Divide into hook and loop fasteners.

  Note that the formation of the translucent part (B1) and the formation of the weft part (B2) may be performed simultaneously. For example, an operation of punching a small piece from a long and wide surface fastener fabric using a punching blade formed in a square frame shape corresponds to such a case.

  And when cutting into squares, if the corners of the squares are cut out roundly, the feel of the small pieces is good, and if the adhesive is applied to the back of the small pieces that are rounded off the corners, This is even more preferable because it can overcome the problem of being easily peeled off.

  As described above, the hook-and-loop piece obtained as described above is formed by protruding the engaging element yarn on the surface of the base fabric formed from the ground warp yarn, the ground weft yarn and the engaging element yarn. The engaging element portion (A) where the combined element is present and the ear portion (B) where the engaging element is not present on the surface of the base fabric are formed. A hook-and-loop piece of cloth surface fastener with ears that is surrounded by a width of 5 mm and has ears (B) as ends, and the ears (B) are warps formed from ground warps and wefts. The ear portion (B1) is formed of a ground warp yarn, a ground weft yarn and an engagement element yarn, and the engagement element yarn is composed of a weft ear portion (B2) that is woven into the base fabric while maintaining a continuous yarn state. The transauricular portion (B1) and the weft ear portion (B2) are characterized by being in an orthogonal state.

The above-mentioned “engagement element yarn is kept in a continuous yarn state” means that the engagement element yarn is cut at the root of the engagement element or melted at the ear portion as in the prior art. This means that the shape is not lost but the yarn shape is continuously maintained at the ear.
In addition, the above-mentioned “the ear part is woven with the thread for the engaging element in the base cloth” means that the thread for the engaging element is woven into the base cloth without forming a loop on the surface of the base cloth. It means that

  The hook-and-loop fastener piece of the present invention can be attached to a fabric or the like accurately and nicely by sewing, and since the ear part does not tingle or damage even if it touches the skin, as a substitute for clothing buttons, As a fixing means for supporters (back pain belts, etc.), as a means for fixing gloves, as a crust fixing means for shoes, as a means for fixing a skin material for sofas and seats, as a means for closing openings of bags and school bags Very useful.

  EXAMPLES Hereinafter, although an Example demonstrates this invention, this invention is not limited to these Examples.

Example 1
The following yarns were prepared as ground warp yarns, ground weft yarns, and monofilament yarns for hook-like engagement elements that constitute the base fabric of the cloth surface 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 (multifilament heat-sealed yarn made of core-sheath type composite fiber)]
-Core component: Polyethylene terephthalate (melting point: 260 ° C)
-Sheath component: 25 mol% isophthalic acid copolymerized polyethylene terephthalate (softening point: 190 ° C)
-Core-sheath ratio (weight ratio): 70:30
-Total decitex and number of filaments: 24 at 116 dtex-Dry heat shrinkage at 200 ° C: 13%
[Monofilament yarn for hook-like engagement element]
-Polyethylene terephthalate fiber (melting point: 260 ° C)
・ Fineness: 390 dtex (diameter: 0.19 mm)

  The above three types of yarns are used as a weaving device, and the reciprocating motion of the hook frame forming the hook-like engaging element or the loop-like engaging element is controlled by an electric signal, so that a period using a very large number of ground yarns is used. A device composed of the above structure (TOMI-TEX's electronic dobby loom for narrow width) was used.

  In this way, using a loom that controls the reciprocating motion of the collar frame with an electric signal, a cloth surface fastener having a hook-like engagement element was manufactured under the following conditions.

[Fabric surface fastener with hook-like engagement element]
Using the above-mentioned ground warp, ground weft and monofilament for hook-like engagement element, plain weave is used as the woven structure, and the weave density (after heat shrink treatment) is 50 warp / cm ground warp / 20 weft / cm Weaved into. The hook-like 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 the 5 weft yarns have been lifted and lowered, the 3 ground warp yarns are straddled. A loop was formed on the base fabric to form.

  It should be noted that 25 monofilaments for hook-like engagement elements are woven and arranged in the weft direction, the width of the hook-like engagement elements is 2 cm, and the hook-like engagement elements are adjacent to the hook-like engagement element. An area where no six yarns exist was provided.

  Then, for 50 ground wefts, 5 ground wefts are floated and then 3 ground warps are straddled, and a loop of monofilaments is formed on the base fabric so as to form a loop at the straddling point, followed by 12 ground weft yarns do not straddle 3 ground warp yarns and do not form monofilament loops, that is, 50 weft yarns have monofilament loops, and 12 weft yarns do not have monofilament loops, And the hook_and_loop | surface fastener which has the area | region which has a loop in this way, and the area | region which does not have a loop alternately regularly was woven.

  In the surface fastener fabric in which loops woven under the above conditions exist, only the sheath component of the weft yarn is thermally melted, and the core component of the ground warp yarn, the monofilament yarn for the hook engaging element, and further the weft yarn The heat treatment was performed in a temperature range where heat melting did not occur, that is, 200 ° C.

  As a result, the weft yarn contracted greatly and the sheath component melted to fuse the adjacent yarn. The base fabric shrunk 9% in the direction of the weft. After cooling the fabric thus obtained, one leg of the loop was cut to form a hook-like engagement element.

  In this embodiment, the weaving device, the heat treatment device, and finally the winding device can be combined into one device, and the hook forming device is also installed in the device for the hook surface fastener. When the cutting state of the one leg portion of the hook of the hook-and-loop fastener was confirmed, no defective portion such as the one leg portion was not cut was found at all.

The hook-like engagement element density in the engagement element-existing region of the cloth surface fastener where the hook-like engagement element is present is 40 / cm ² , and the height of the hook-like engagement element from the base cloth surface Was 1.7 mm.

  Then, when measuring the length of the hook-and-loop engaging element in the weft direction in each of the region where the engaging element is present in the ground weft direction and the region where the engaging element is not present is about 20 mm wide. The area where the engagement element exists, the adjacent area where there is no engagement element with a width of about 5 mm, and the area where the engagement element exists and the area where the engagement element does not exist alternately exist In addition, a region having a width of 5 mm where there is no engaging element exists outside the region where the engaging element existing at the end is present.

  Then, when the hook-and-loop engagement element is present and the length in the warp direction of the area where the engagement element is present and the area where the engagement element is absent is measured in the length direction, about 20 mm is engaged. It was an element existence area, and about 5 mm was an engagement element absence area.

  Furthermore, the hook hook-and-loop fastener obtained is cut into a central portion of a region where there are no engaging elements present in the ground weft direction to form a long tape-like material, and then the hook in the ground warp direction. There is a cut in the center of the area where the combined element does not exist, and there is an engagement element part of 20 mm × 20 mm, and the ear part (B1 and B2) where the engagement element of 2.5 mm width does not exist around it. A surface fastener piece of 25 mm × 25 mm was obtained.

Comparative Example 1
The same warp yarn as that of Example 1 is prepared as the ground warp yarn, the ground weft yarn, and the hook-like engagement element monofilament yarn constituting the base fabric of the cloth surface fastener, and the engagement element is continuously present in the ground warp direction. Other than that, the hook hook-and-loop fastener similar to Example 1 was manufactured.

After the hook surface fastener thus obtained was cut along the ground warp direction at the center of the region where there is no engaging element in the ground weft direction, the ground weft yarn was cut every 20 mm in length in the ground warp direction. The hook-shaped engagement element yarn was cut using a rotary blade that rotates about the same rotation axis as the direction, thereby forming a region where there was no engagement element having a length of 5 mm in the ground warp direction.
Then, a cut is made in the center of the portion where the hook-like engagement element having a length of 5 mm in the ground warp direction is cut off, and there is an engagement element portion of 20 mm × 20 mm. A small piece of hook-and-loop fastener of 25 mm × 25 mm having an ear portion in which no is present was obtained.

Comparative Example 2
As the ground warp yarn, ground weft yarn, and hook-like engagement element monofilament yarn constituting the base fabric of the cloth surface fastener, the same yarn as in Example 1 is prepared, and the engagement element is continuously present in the ground warp direction. A hook hook-and-loop fastener similar to Example 1 was manufactured except for the above.

The hook hook-and-loop fastener thus obtained is cut along the warp direction at the center of the region where there is no engagement element present in the ground weft direction, and then ultrasonic waves are generated every 20 mm in the ground warp direction. By crushing the hook-like engagement element using the oscillation device, a region where no engagement element having a warp direction length of 5 mm was present was formed.
Then, the center part of the portion where the hook-like engagement element having a length of 5 mm in the ground warp direction is crushed is cut to have an engagement element part of 20 mm × 20 mm, and a 2.5 mm width engagement is provided around the periphery. A hook-and-loop piece of 25 mm × 25 mm having an ear portion where no element was present was obtained.

Comparative Example 3
The same warp yarn as that of Example 1 is prepared as the ground warp yarn, the ground weft yarn, and the hook-like engagement element monofilament yarn constituting the base fabric of the cloth surface fastener, and the engagement element is continuously present in the ground warp direction. Other than that, the hook hook-and-loop fastener similar to Example 1 was manufactured.

  The hook hook-and-loop fastener thus obtained is a region where there is no engagement element in the ground warp direction after making a cut along the ground warp direction in the center of the region where there is no engagement element in the ground weft direction No cut was made every 25 mm in length. That is, a small piece of a hook-and-loop fastener of 25 mm × 25 mm having an engagement element portion that continuously exists in the ground warp direction up to the cut end surface but has no engagement element of 2.5 mm width only at both ends in the width direction. Got.

  And each evaluation result of the hook-and-loop fastener pieces obtained in Example 1, Comparative Example 1, Comparative Example 2 and Comparative Example 3 is shown in Table 1, and a cross section of a region where no engaging element exists in the ground warp direction. Enlarged photographs are shown in FIGS. 1, 2, 3 and 4, respectively.

  As is apparent from the photograph of FIG. 1, in Example 1, the region (2) having no engaging element is in a state similar to plain weaving. Moreover, even when the ear part was touched with the fingertip, it was soft and the same as a normal plain weave. Further, since the engaging element is not cut or melted, the base fabric is not damaged in the ear portion.

Such hook-and-loop fasteners were sewn to the cuffs of clothes with a sewing machine and used instead of buttons.
The loop hook-and-loop fastener to be engaged with the hook hook-and-loop fastener is 265 dtex in the first embodiment, in which the hook-type engaging element yarn is made of seven filaments made of polybutylene terephthalate. Using a multifilament yarn, a loop surface fastener piece was produced by the same method as the hook surface fastener manufacturing method described above, except that the loop was formed without straddling the ground warp yarn and the operation of cutting one leg of the loop was not performed. A thing was used.

  Using the sewing machine, the hook surface fastener piece and the loop surface fastener piece of Example 1 were sewn to the predetermined position of the cuff, but could be accurately sewn to the predetermined position without any problem, and the perforation and the sewing thread were aligned. It was present and looked great.

  In the hook-and-loop fastener piece of Comparative Example 1, it is clear from FIG. 2 that the base of the hook-like engagement element remains (3 in FIG. 2). This is because the rotary blade can cut only a certain length of the hook-like engagement element yarn.

  Usually, a rotary blade has a fixed blade at the lower portion of the rotating blade and the rotating blade, and an object to be cut is cut between the fixed blade and the rotating blade. Therefore, the thickness of the fixed blade at the lower part usually remains. Similarly, the monofilament yarn shown in FIG. 2 seems to retain the thickness of the lower blade. Further, even when the ear part was touched with the fingertip, the uncut monofilament yarn gave a tingling and irritation to the fingertip, and in some cases it felt painful. Furthermore, although the cut engagement element was removed by blowing it off with air, it was difficult to remove the engagement element that had blown into the engagement element portion, which greatly deteriorated the appearance of the hook-and-loop fastener.

  On the other hand, in the case of the hook-and-loop fastener piece of Comparative Example 2, the crushed hook-shaped engagement element yarn is brought down on the surface of the portion that becomes the base fabric portion of the hook-and-loop fastener fabric, leaving a hook-shaped trace. The surface of the part is covered (4 in FIG. 3). This is because the monofilament yarn used for the hook-like engagement element yarn is thick and hard but is not crushed because it is crushed by ultrasonic waves. Even when the ears were touched with the fingertips, the monofilaments were irregularly fallen after the hooks were cut, so that the portions where the monofilaments existed were felt particularly hard. When the melted engagement element yarn touches the fingertip, there is a part that feels a foreign matter depending on the case.

  In the hook-and-loop fastener piece of Comparative Example 3, there is a hook-like engagement element yarn on the cut end surface as is apparent from FIG. When the end face was touched with a finger, the hook-like engaging element gave a tingling and irritation to the fingertip, and the tingling stimulus was given even more than the monofilament yarn of Comparative Example 2 touched the fingertip. Further, during the operation of making a cut in the weft direction, the monofilament yarn that becomes the engaging element inclined in the warp direction may be cut at the same time, and the waste of the monofilament yarn has fallen around and contaminated the working environment.

And when the cut surface was touched for a while, the hook-like engagement element in the cut end surface fell off from the base cloth part. This is because, when the engagement element yarn and the ground warp yarn are fixed by using the heat fusion yarn, it is the so-called point adhesion of the portion where the heat fusion yarn, the engagement element yarn and the ground warp yarn are in contact with each other. , There are parts where the adhesive force between the heat fusion yarn and the monofilament yarn that is the hook-like engagement element yarn is weak, or there are portions where the heat fusion yarn is not in contact with the monofilament yarn, and a cut is made in the weft direction Depending on the position, a portion where the adhesive force between the heat-sealing yarn and the monofilament yarn is weak is cut, and the monofilament yarn where the adhesive force is weak is detached from the base fabric portion, and the hook-like engagement element falls off.

1: In FIG. 5, a region where an engagement element exists (engagement element portion)
2: In FIG. 1, a region where no engaging element is present (ear portion)
3: Region in FIG. 2 where the engagement element thread is cut (conventional ear)
4: Region in FIG. 3 where the engagement element yarn is crushed (conventional ear)
L: In FIG. 5, ground warp direction W: In FIG. 5, ground weft direction 5: In FIG. 5, a region that becomes a warp 6: A region that becomes a weft in FIG.

Claims (6)

  An engagement element portion (A) and a base fabric in which an engagement element formed by projecting the engagement element yarn is present on the surface of a base fabric formed from ground warp, ground weft and engagement element yarn The ear portion (B) has no engagement element on the surface thereof, the ear portion (B) is surrounded by a width of 1 to 5 mm around the periphery of (A), and the ear portion (B) is an end portion. A hook-and-loop piece made of cloth with an ear portion, the ear portion (B) comprising a warp ear portion (B1) formed from ground warp yarn and ground weft yarn, ground warp yarn, ground weft yarn and engaging element The engagement element yarn is made of a yarn and is composed of a weft ear portion (B2) woven into the base fabric while maintaining a continuous yarn state, and the transverb portion (B1) and the weft ear portion (B2) are in an orthogonal state. A small piece of cloth hook-and-loop fastener with ears.   The ground warp yarn, the ground weft yarn and the engagement element yarn constituting the base fabric are all made of polyalkylene terephthalate polyester, and the weft yarn is a core-sheath type heat-fusible polyester. 2. The piece of cloth surface fastener with ears according to claim 1, further comprising a base fiber, wherein the engagement element yarn is fixed to the base fabric by the heat-fusible fiber.   The small piece of cloth surface fastener with ears according to claim 1 or 2, wherein the thread for engaging element is woven into the translucent part (B1), and the thread for engaging element is kept in a continuous thread state.   The ear-attached part according to any one of claims 1 to 3, wherein the engaging element part (A) is cut into a quadrangle parallel to the ground warp and the weft so as to be surrounded by the ear part (B). A piece of cloth hook-and-loop fastener.   The cloth surface fastener piece with an ear | edge part in any one of Claims 1-4 in which the adhesive resin layer exists in the back surface of a base fabric. A method of manufacturing a cloth surface fastener piece with an ear, wherein the following steps (1) to (5) are sequentially performed. However, the operation of making a break in step (4) and step (5) may be performed simultaneously.
(1) Using a loop forming device in which the reciprocating motion of the hook frame for forming the engagement element is controlled from the ground warp, the ground weft and the engagement element yarn by an electric signal, the engagement element yarn is applied to the surface of the fabric. The engagement element area where the loop made of and the area where the loop does not exist alternately exist in the ground warp direction, and the engagement element exists on both sides of the engagement element area in the ground weft direction. A process for producing a long woven fabric in which a region that is not present exists,
(2) A step of melting a part of the yarn constituting the fabric or applying a resin to the back of the fabric to fix the base fabric and the engaging element,
(3) when the engaging element is a hook-shaped engaging element, cutting one leg of the loop to make the loop shape a hook shape;
(4) A notch is made in parallel with the ground warp yarn in the engagement element non-existing region present on both sides of the engagement element region in the ground weft direction, and both ends of the engagement element portion (A) are formed in the ground warp direction. Manufactures a long hook-and-loop fastener in which the translucent part (B1) is continuously present in the part and the engaging element part (A) and the engaging element non-existing area are alternately present in the ground warp direction. The process of
(5) The engagement element portion (A) and the engagement element non-existence region alternately exist in the ground warp direction, and the engagement element non-existence region is cut in parallel to the ground weft. A step of dividing the periphery of (A) into small pieces of hook-and-loop fasteners surrounded by a translucent portion (B1) having a width of 1 to 5 mm and a weft ear portion (B2) having a width of 1 to 5 mm;