JP2005281877A - Woven or knitted fabric for tape and method for producing tape - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a stretchable tape suitable as a fabric label following the extension and contraction of a knitted article or a decorative tape to be sewn to a sportswear, etc., in which a fabric label or a decorative tape has some stretchability to follow the extension and contraction of a knitted article such as a training wear, etc. <P>SOLUTION: The woven or knitted fabric for a tape simultaneously provides a plurality of stretchable tapes having both side edges welded by laser cutting, totally has stretchability by constituting at least warps or a knitted fabric by a stretch yarn, forms marks for deciding laser cutting lines in the longitudinal direction in parallel, respectively and comprises a thermoplastic fiber yarn woven at least partially in the vicinity of a plurality of laser cutting lines. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a woven or knitted fabric for an intermediate product that is processed into a woven label or decorative tape having some elasticity that can follow the expansion and contraction of a knit product such as a trainer, and further produces a woven tape using the tape woven fabric. Regarding the method.

  A woven label sewn on a commercial textile product is important because it displays a trademark, a manufacturer name, etc. as the face of the product. Woven labels are woven into a tape at the same time with a narrow loom, or weaved a wide woven fabric with synthetic fibers using a high-speed loom such as a rapier loom with high production efficiency, and then heat-cut this wide woven fabric into a strip shape. Cut each label and manufacture. On the other hand, sportswear such as trainers has been increasing in sales volume due to recent health consciousness, and it is required to add variations to the design as the purchasing group expands. As part of this variation, there is a case where a woven tape with a pattern is sewed on the cuffs or shoulders for sportswear. This type of decorative tape is also produced by weaving it into a tape shape with a narrow loom, or weaving a wide fabric with a high-speed loom, and heat-cutting this wide fabric into a strip shape.

In Japanese Patent Publication No. 61-52270, the present applicant has already proposed a method of heat-cutting a wide woven fabric into a belt shape to obtain a wide tape, and heat-cutting the wide tape with a hot slitter. If so, it can be cut into a relatively beautiful constant width tape. However, this heat cutting method has the following problems, and therefore cannot be applied to a wide woven fabric having some elasticity.
Japanese Patent Publication No. 61-52270 JP 2002-339185 A

  The woven label or tape can be manufactured at low cost by simultaneously weaving a large number of wide woven fabrics using a high speed loom such as a rapier loom. Because it is densely woven in tension, the tape obtained has no longitudinal stretch. For this reason, when this label or tape is sewn to the sleeve shoulder or back of the elastic clothing, it cannot respond to the expansion or contraction of the fabric, and the wearer bends his neck or extends his arm. You may feel your clothes being pulled.

  When this type of woven tape is sewed on the cuffs or shoulders of sportswear such as a trainer, if the elasticity of the tape is poor, a sense of incongruity is likely to occur and the comfort is likely to be reduced. Sportswear is a knitted product that stretches and bends greatly according to the movement of the wearer when in use, and this allows for comfortable movement, so a decorative tape with poor stretchability is sewn in part. If this is done, the wearer not only feels uncomfortable or uncomfortable with the trainer, but also restrains the movement of the wearer or adversely affects the durability of the trainer itself.

  On the other hand, if weaving a wide woven fabric with elastic warp and weft and heat-cutting the wide woven fabric into a tape shape on the machine, the resulting tape will be deformed into a seaweed shape with only both side edges extended and sold as a product I can't do it. This deformation phenomenon is caused by heat cutting in the tension state after weaving with a rapier loom. Therefore, when the tape is released from the tension state, the longitudinal center portion of the tape can shrink, but both sides welded by heat cutting are used. The edge appears because it does not return. In Japanese Patent Application Laid-Open No. 2002-339185, the applicant of the present invention has proposed a method for producing a woven tape having a slight stretchability, and this woven tape considerably suppresses wakame-shaped deformation, but is partially kinked. May remain. Moreover, since the elongation of the woven tape is 3 to 5% in the longitudinal direction, the stretchability may be slightly insufficient during use.

  The present invention has been proposed in order to improve the problem that commercially available woven labels and decorative tapes lack elasticity and the elastic tape is deformed, and has elasticity by using a stretch yarn at least for the warp. It aims at providing the woven fabric for tapes which can obtain a tape. Another object of the present invention is to provide a method for producing a straight and beautiful tape by cutting in two stages, even if both side edges are welded.

  The tape woven fabric according to the present invention is a wide woven fabric that is not rough-cut or a knitted fabric that is an intermediate product or various knitted products after rough-cutting a wide-width woven fabric. An elastic tape can be obtained simultaneously. This woven fabric for tape has stretchability as a whole by forming at least warp yarns as stretch yarns, forming marks for defining a laser cutting line in the longitudinal direction in parallel, and a plurality of lasers. A thermoplastic fiber yarn is woven at least partially in the vicinity of the cutting line.

  The wide woven fabric for tape according to the present invention is an original fabric before rough cutting, and a plurality of stretchable tapes having both side edges welded by laser cutting can be obtained simultaneously. This wide woven fabric for tape has some stretchability as a whole by constructing at least warp yarns as stretch yarns, forming marks for defining a laser cutting line in the longitudinal direction in parallel, and a plurality of Thermoplastic fiber yarns are woven at least partially in the vicinity of the thermal cutting line and the laser cutting line. This mark is preferably an identification thread woven during printing or adhering to the tape fabric.

  In the tape manufacturing method according to the present invention, a wide woven fabric having some elasticity is woven by a high speed loom, and the wide woven fabric is roughly cut to a width of 10 to 60 cm by heat cutting on the machine. Furthermore, in this tape manufacturing method, a rough tape fabric is attached to a laser cutting machine, and is sent out onto a table in a substantially tension-free state, and a plurality of laser heads are positioned while positioning with a tape fabric mark or computer control. At the same time, the both side edges of each tape are welded.

  In the tape manufacturing method of the present invention, the tape fabric is woven entirely with thermoplastic fiber yarns, or partially woven with thermoplastic fiber yarns in the vicinity of the longitudinal thermal cutting line and the laser cutting line, or It is preferable to apply a thermoplastic resin in the vicinity of the thermal cutting line and the laser cutting line. In the wide woven fabric to be used, it is preferable that the rough cutting line is located in a thermal cutting line having a slight width, and this rough cutting line part is removed by the next laser cutting.

  The present invention will be described with reference to the drawings. One of the tape woven fabrics according to the present invention is a tape fabric 1, and an example of the fabric and the wide tape fabric 2 is shown in FIG. 1 and FIG. A woven tape 3 manufactured from is illustrated in FIG. The tape woven fabric 1 is a wide woven fabric that is not rough-cut or an intermediate product after rough-cutting a wide woven fabric, and the wide woven fabric 2 means an original fabric before rough cutting.

  The other of the tape knitted fabrics according to the present invention is a tape knitted fabric and may be a material equivalent to various knitted products. The tape knitted fabric is knitted to have a width of, for example, 120 cm or less in accordance with the width of the laser cutting machine 5, and in the same manner as the tape woven fabric 1, marks for determining a vertical laser cutting line at the time of knitting are parallel to each other. Form. Although not shown, this tape knitted fabric is laser-cut in the same manner as the tape woven fabric 1 to obtain a decorative tape.

  Even if the tape fabric 1 is roughly cut from an original fabric having a width of 140 to 260 cm to a width of about 10 to 60 cm, the width of the fabric is set to the laser cutting machine 5 (FIG. 6). For example, it may be woven to a width of 120 cm or less in accordance with the width of the cutting machine 5. The tape fabrics 1 and 2 usually have some stretchability of 5% or more in the longitudinal direction and may have a function capable of following the stretch of clothes as a woven label or decorative tape. It may have a high elongation of 20% or more like a normal stretch material.

  In the tape fabrics 1 and 2, at least the warp is composed of a stretch yarn, and any of the warp and weft can be a stretch yarn. Even if the raw yarn itself has a stretching function, the stretch yarn may impart stretchability to the inelastic yarn by post-processing like a false twisted yarn. Generally, in the woven tape 3, since the dyeing finishing process is not performed after weaving, the stretch function is not expressed by the shrinkage of the fabric in the dyeing process, and the stretch function is performed by performing the function of the stretch yarn or appropriate post-processing. Gives sex.

  In addition, there are polyether-sheathed or polyester-based elastic yarns having a stretch function of 5 to 800% in elongation, or core-sheath type composite yarns made by a composite spinning of polyurethane, polyamide and polyester. The composite yarn is self-crimping and has the same function as the covering elastic yarn. Examples of such elastic yarns include polyurethane, polyether ester, polybutylene terephthalate, and polytrimethylene terephthalate.

  Examples of a material that imparts stretchability by post-processing of inelastic yarn include processed yarn obtained by crimping polyester fiber, PBT fiber, and polyamide fiber. Specifically, false twisted yarn and latent crimpable composite fiber can be exemplified, false twisted yarn has inherent torque by twisting and untwisting, and this torque gives stretch to the yarn, Weaving with yarns composed of latent crimpable conjugate fibers, and heat treating the resulting fabric to cause crimps in the conjugate fibers. Alternatively, a latent crimpable composite polyester fiber having a high boiling water shrinkage rate may be used and mixed with a normal polyester fiber or other latent crimpable composite polyester fiber. On the other hand, when imparting stretchability to the inelastic yarn by post-processing, if the inelastic yarn is a warp, a normal synthetic fiber yarn can be used for the weft, and the synthetic fiber yarn should be woven roughly. It is easy to give elasticity. As an example, weaving water-soluble spun yarn alternately with normal synthetic fiber yarn as weft, and passing the woven tape through water after weaving to remove the water-soluble spun yarn makes it easier to weave the woven tape with relatively coarse weaving Can be obtained.

  In the case of weaving, these elastic yarns are preferably covered elastic yarns rather than used as they are. The covering elastic yarn is a single covered yarn (SCY) in which synthetic fiber is wound around the core of the draft elastic yarn in a single layer, and the synthetic fiber is twisted and twisted around the core of the draft elastic yarn. Double-covered yarn (DCY), which is wound in a double manner by changing, Draft elastic yarn and synthetic fiber are guided to the interlace nozzle, Air-covered yarn (ACY) which twists the synthetic fiber into the draft elastic yarn by swirling flow, Draft elastic yarn Core spun yarn (CSY) that is inserted into the front roller of the spinning machine, twisted and wound to wind, draft elastic yarn and synthetic fiber are twisted with a twisting machine, the elastic yarn is the core and the synthetic fiber is the sheath yarn There are composite twisted yarns, composite false twisted yarns in which air entanglement treatment is performed after false twisting a draft elastic yarn and a synthetic long fiber.

  More specifically, in the case of SCY, the elastic yarn of the core yarn is a polyurethane elastic yarn of 10 to 70 denier or a polyether ester type elastic yarn, and the synthetic long fiber to be wound is polyester or nylon of 20 to 150 denier. Multifilament yarn, spun yarn, and crimped yarn can be used. The draft rate of the elastic yarn is 100 to 350%, and the winding twist number is 500 to 1200 T / m. The use ratio of the synthetic fiber is 1 to 5 times the elastic yarn. In this SCY, it is preferable that one or two S twist yarns and Z twist yarns having substantially the same fineness and number of twists are alternately formed, and if the S twist yarn or the Z twist yarn is used alone, the stretchability is lowered.

  An elastic composite yarn having a polyurethane elastic yarn as a core yarn and a polyester yarn as a sheath yarn may be used. When this polyurethane elastic yarn is coated with a polyester yarn, it prevents the misalignment and increases the drapeability due to its bulkiness. When the fineness is 20 to 120 denier, the yarn is less likely to break, and the elongation is 300% or less. It is desirable to be. The polyester yarn used for covering the elastic yarn is a regular polyester yarn or a modified polyester yarn to which a third component is added, and a normal pressure cationic dyeable polyester yarn (trade name: Color Fine (manufactured by Toyobo), trade name: AHY ( (Mitsubishi Rayon) and the like). For example, the fineness of this polyester yarn is 30-150 denier, and if it is a multifilament yarn, the number of filaments is 20-90. The ratio of the polyurethane elastic yarn to the polyester yarn is about 1.5 to 5 times the weight of the polyester yarn. SCY, CSY, ASY, etc. are possible, and the polyurethane elastic yarn when the polyester yarn which is a synthetic fiber long fiber is wound has a draft magnification of 50 to 300% and a twist number of 300 to 1000 T / m.

  It is preferable that the woven tape fabrics 1 and 2 have flat, twill, satin weaving, or a change weaving thereof and are generally satin weaving. The green density of the fabrics 1 and 2 is, for example, 50 to 150 pieces / inch in length and 50 to 200 pieces / inch in width. A weaving mechanism is used for weaving the fabrics 1 and 2, and the weaving mechanism is, for example, a wide loom such as a high-speed rapier loom, a projectile loom, or an air jet loom, and a warp opening movement when weaving a wide weaving fabric. Are combined with a jacquard machine, and a wide loom weaves a pattern by the jacquard machine. This pattern is a character 7 or a pattern arranged in a straight line in the horizontal direction in accordance with the woven tape portion 6 (FIGS. 1 and 2) arranged in a strip shape. It is desirable that the pattern is not so complicated in order to have the elasticity of.

  As described above, the tape fabrics 1 and 2 have a stretchability of 5% or more as a whole by forming at least the warp with a stretch yarn, and the laser cutting line 8 is determined in the longitudinal direction of the fabric. The marks 10 are formed in parallel. For example, as shown in FIGS. 1 and 2, the mark 10 is a warp identifying yarn woven during weaving of the woven fabric, and is positioned at the boundary line between the woven tape portions 6 arranged in a strip shape. As long as the identification yarn can be identified by a photo sensor such as a photo IC, CCD, CMOS or photoelectric tube, an infrared sensor, or a metal sensor, even if it is a colored yarn different from the ground color of the fabric, ultraviolet rays, infrared rays, electromagnetic waves that are not visible light It may be a colorless thread that emits light or a colored thread having the same color as the ground color. Further, the mark 10 may be a linear print attached to the fabric, and it is desirable to install the ink tank on the loom so that the print can be attached accurately when the fabric is woven. This print may be a color different from the background color of the fabric, or may be a straight line, a code, or a pattern that emits ultraviolet rays, infrared rays, electromagnetic waves or the like that are not visible rays.

  In the wide woven fabric 2 that is the raw fabric before rough cutting, as shown in FIG. 2, in addition to a plurality of laser cutting lines 8, a thermal cutting line 12 having a slight width is provided by adjacent marks 10 and 10. Form. The interval between the thermal cutting lines 12 and 12 is set to a lateral width suitable for being attached to a known laser cutting machine 5, and is generally about 10 to 60 cm. The marks 10 and 10 on each thermal cutting line 12 may be the same identification thread or print as described above.

  As apparent from FIGS. 2 and 5, the wide woven fabric 2 for tape is roughly cut between the marks 10 and 10 of the thermal cutting line 12 having a slight width by heat cutting. A plurality of fabrics 1 are obtained simultaneously. This heat cut includes not only a normal heating method but also a cutting method using ultrasonic waves or high frequencies. For example, the wide woven fabric 2 is heat-cut into a strip shape immediately after weaving on a high-speed loom 15 combined with a jacquard machine 14 (FIG. 5) by a heat cutting device installed in front of or behind the breast beam 16. This heating and cutting device is composed of a large number of heating knives 18 and ultrasonic cutting machines arranged in parallel at regular intervals. In the case of the heating knives 18, the weft is heated to a temperature higher than the melting point of the weft. If it is normal polyester fiber, it is heated to about 280 ° C. or higher. The plurality of heat-cut tape fabrics 1 are each wound on a roll 20 in a high-speed loom 15.

  The plurality of tape fabrics 1 obtained from the wide woven fabric 2 are heat cut in the tensioned state after weaving on the high-speed loom 15 so that both side edges are welded and linear fiber melted portions are formed on both side edges. (Not shown) occurs. Even if the tape fabric 1 is wound around the roll 20 and released from the tensioned state, only the fiber melted portion on both side edges does not shrink, and only the both side edges are extended and deformed into a seaweed shape. The outermost marks 10 are arranged on the inner side of the fiber melted portions on both side edges of the tape fabric 1 so that they can be removed from the woven tape 3 in the next laser cutting step (see FIG. 6).

  The tape fabric 1 is attached to the laser cutting machine 5 (FIG. 6) in the next laser cutting step and cut in parallel along the plurality of laser cutting lines 8, that is, the marks 10, so that both side edges are welded. A plurality of woven tapes 3 are obtained. At this time, the entire fabrics 1 and 2 are woven with the thermoplastic fiber yarns so that the both side edges of the tape can be welded, or the thermoplastic fiber yarns are partially disposed in the vicinity of the laser cutting line 8 and the thermal cutting line 12. Is incorporated. If welding with warp or weft is insufficient or impossible, it is necessary to apply a thermoplastic resin to the tape surface and / or back surface in the vicinity of the laser cutting line 8 and the thermal cutting line 12. This thermoplastic resin can be applied by feeding the woven fabrics 1 and 2 to separate coating devices, installing the coating device on the weaving machine 15 together with the drying device, or integrating them with the laser cutting machine 5. Good.

The laser cutting machine 5 is attached with a carbon dioxide gas laser or a YAG laser that can cut a thermoplastic fiber or a fabric partially containing the fiber. For example, if the laser cutter 5 is a carbon dioxide laser, a CO ₂ laser oscillator can be exemplified by an oscillator manufactured by Sinrad Co. (USA). The oscillator is RF excitation: CO ₂ laser, laser wavelength: 10.5 10.7 μm invisible light, laser output: 50 W, laser light transmission method: mirror reflection method, laser light condensing method: lens method. The multi-head type laser head 22 (see FIG. 7) having the nozzles 24 is usually attached to one to eight laser generators 48, and each head is a servo motor (not shown) via a movable arm 44. The heads themselves can be finely moved in the horizontal direction independently, and the position of the heads is accurately controlled by a computer.

  As illustrated in FIG. 6, the laser cutting machine 5 includes a rectangular frame 26, and a metal net conveyor 28 or a wire conveyor is rotatably disposed in the frame. The net conveyor 28 is composed of a belt 32 having a honeycomb-shaped through hole 30 (FIG. 7) provided on almost the entire surface, and the tape fabric 1 is placed on the surface of the belt, which is a work table 34, and conveyed. In the laser cutter 5, the roll 20 of the tape fabric 1 is rotatably arranged on one short side of the frame 26, and a plurality of winding rolls 36 of the woven tape 3 are coaxially arranged on the other short side. To do. The laser cutting machine may have a structure in which a fixed net is stretched above the frame. In this case, the tape fabric 1 runs on the fixed net.

  In the frame 26, a suction box (not shown) of a decompression device is disposed on the back side of the belt 32 as the work table 34, and the suction box is connected to a blower (not shown) through a suction pipe. When this blower is operated to reduce the pressure in the suction box, the tape fabric 1 is adsorbed to the belt surface through the through holes 30 of the belt 32. This decompression device has a function of collecting dust and the like generated by laser cutting of the tape fabric 1. If this table is a fixed net, it is necessary to set the suction force by the blower relatively low so as not to obstruct the running of the tape fabric 1.

  Guide rails 42, 42 extending in the vertical direction are attached to both sides of the work table 34, and the movable arm 44 moves back and forth along both guide rails. The movable arm 44 is equipped with a multi-head type laser head 22 that can move in the left-right direction. The movable arm 44 is disposed so as to straddle the table 34, and the nozzle 24 (FIG. 7) of each laser head 22 is close to the tape fabric 1 but does not come into contact with the tape fabric.

  For example, the laser beam 46 for the multi-head type laser head 22 is radiated from a laser generator 48 installed on the rear side of the table 34 and reflected by a mirror 50 provided on one end of the movable arm 44 to be reflected on each laser head. 22 is incident. Actually, the laser generator 48, the mirror 50, and each laser head 22 are covered by the light shielding cover together with the beams 46 and 52, so that the operator does not look directly at the beams 46 and 52. As shown in FIG. 7, in each laser head 22, the reflected beam 52 is branched by a mirror 54, and each branched beam 56 is introduced into a condenser lens 58 of the nozzle. The focused beam 60 focused by the focusing lens 58 is focused on the tape fabric 1. The tape fabric 1 can be cut in parallel by the movement of each focused beam 60 through the nozzle 24 of each laser head 22.

  In the laser cutting machine 5, when the tape fabric 1 is supplied from the roll 20 onto the belt 32, the tape fabric 1 is fed forward by the rotation of the net conveyor 28, so that the work table 34 is substantially covered without tension. In this state, the pressure reducing device is operated, and the tape fabric 1 is adsorbed on the surface of the belt 32 by the suction action. Although not shown in the drawings, the laser cutter 5 is provided with an optical sensor, an infrared sensor, a metal sensor, or the like, and by detecting the position of each mark 10 on the fabric regardless of the travel position of the tape fabric 1, The nozzle position of the laser head 22 is accurately matched with the mark 10.

  In a state where the tape fabric 1 is adsorbed on the belt 32, the laser head 22 is appropriately moved through the movable arm 44 by computer control, and the tape fabric 1 is accurately moved by the condensed beam 60 from each laser head 22. The cut woven tape 3 is wound around a roll 36. Dust such as lint generated at this time is sucked by the blower and collected by an air cleaner (not shown). This laser cutting operation may be performed while the tape fabric 1 is stopped intermittently or may be performed while the tape fabric 1 is running with respect to the laser head 22 that does not move in the longitudinal direction. When the number of the laser heads 22 is smaller than the number of the laser cutting lines 8 of the tape fabric 1 and the marks 10 at both ends, the movable arm 44 is moved back and forth at a high speed and the laser head 22 is shifted in the lateral direction. Therefore, it is necessary to process the entire cutting line 8 in the laser cutting machine 5 (see the arrow in FIG. 6).

  This laser cutting machine may have a structure in which an optical sensor such as a CCD or CMOS is attached over the entire width of the movable arm 44. In this laser cutting machine, the full width position data of the obtained tape fabric 1 is sent to a control computer (not shown), and the cutting position between the tapes is accurately calculated by the computer, and the outermost cutting position is calculated. It is also easy. If such a laser cutter is used, it is not necessary to form the mark 10 on the tape fabrics 1 and 2.

  The obtained woven tape 3 is formed with welded portions 61 (see FIG. 4) on both side edges by laser cutting, and no fraying of the yarn is generated by the welded portions. This laser cutting is performed by the non-contact laser head 22 at high speed, and since it is cut substantially in a non-tensioned state, no wakame-shaped deformation occurs. The welded portion 61 is thinner than the fiber melted portions on both side edges of the tape fabric 1 and does not hinder the stretchability of the woven tape 3. The woven tape 3 may be appropriately post-processed to increase its elasticity as desired. As post-processing, for the woven tape 3 after weaving, heat setting at 160 to 190 ° C. for 10 to 30 seconds, hot water relaxation treatment at 50 to 100 ° C. for 1 to 5 minutes, and two stages in which the temperature was changed from low temperature Examples of the above-described multistage relaxation treatment and alkali weight reduction processing of 10% or less can be given. This alkali weight reduction process requires selecting a range that does not affect the dyeing of the yarn used.

  As illustrated in FIG. 4, the woven tape 3 includes a single-ring stitch portion 66 that continues in the lateral direction while feeding the sewing thread 64 forward and backward along the vicinity of both side edges welded by laser cutting of the tape fabric 1. It is possible to make the woven tape 62 provided with. One sewing thread 64 forming the single-ring stitch portion 66 intersects the tape side edge and covers the weld portion 61. At the same time as forming the single ring stitch portion 66, the linear insertion thread 70 may be sealed in contact with the weld portion 61 in the single ring stitch portion. The insertion thread 70 is usually composed of one or two or more twisted threads as with the sewing thread 64, but a non-twisted thread or the like can also be used. On the other hand, an edge stitch portion may be formed on the woven tape with an overlock sewing machine or the like along the vicinity of both side edges. When forming the edge stitch portion, it is also possible to enclose the linear insertion thread so as to be in contact with the weld portion.

  The woven tapes 3 and 62 may be used as decorative tapes in the form of belts, or may be used as the woven labels 72 after being cut at the horizontal cutting points 68 as shown in FIG. In the woven tape 62, it is preferable to use the same stretch yarn as the warp and weft of the tape fabric 1 as the sewing thread 64 and the insertion thread 70 because the stretchability and color tone of the entire tape can be unified. The woven tape 3, 62 or the woven label can be further flattened by hot pressing so that the entire tape has the same thickness.

  The woven knitted fabric for tape according to the present invention is a knitted product or the like when the obtained tape is sewn as a decorative tape by knitting at least warp or knitted fabric with stretch yarn to give some elasticity. Can easily follow the expansion and contraction of The tape obtained by laser cutting the tape knitted fabric of the present invention is beautiful because it does not cause a wakame-like deformation, and is sewn to the cuff or shoulder of sportswear such as a trainer. The expansion and contraction does not cause a sense of incongruity and maintains a good comfort, and does not adversely affect the restraint of the wearer's movement and the durability of the trainer itself.

  The woven tape obtained by laser cutting the tape fabric of the present invention can be processed into a woven label when further cut in the transverse direction. This woven label has some elasticity, and when it is sewn to the back of clothing, it can respond to the expansion and contraction of the knitted product, and when the wearer bends his neck forward or stretches his arm, There is no hangup.

  The tape manufacturing method according to the present invention can manufacture a plurality of woven tapes from a wide woven fabric in one or two stages using a high-speed loom such as a rapier loom, and can impart some elasticity to the tape. A beautiful woven tape that does not deform into a shape can be obtained at low cost. In the tape manufacturing method of the present invention, welded portions are formed on both side edges of the woven tape by laser cutting, but this welded portion is thinner than the fiber melted portions on both side edges of the tape fabric, and the welded portion is woven tape. There is no hindrance to the elasticity.

  Next, the present invention will be described based on examples, but the present invention is not limited to the examples.

  In order to obtain the woven tape 3 shown in FIG. 3, a polytrimethylene terephthalate fiber yarn having a fineness of 10 to 100 denier is used as a warp yarn, and a normal polyester fiber yarn is used as a weft yarn, and a wide woven fabric 2 having a lateral width of 145 cm (FIG. 2). ), The elongation of the fabric is about 10%. For weaving the wide woven fabric 2, a pattern weaving mechanism in which a high-speed rapier loom 15 and a jacquard machine 14 are combined is used. The wide woven fabric 2 has, for example, a warp density of 100 / inch and a weft density of 65 / inch, and the woven structure is a flat or satin weave. The pattern of the wide woven fabric 2 is, for example, a relatively simple character 7 (see FIG. 3) and / or a pattern arranged in a straight line in the horizontal direction according to the woven tape portions 6 arranged in parallel in a strip shape.

  In the wide woven fabric 2, as shown in FIG. 2, in addition to the plurality of laser cutting lines 8, a thermal cutting line 12 having a slight width is formed by the adjacent marks 10 and 10. In the wide woven fabric 2, the distance between the thermal cutting lines 12, 12 corresponding to the tape woven fabric 1 is 35 cm, and the lateral width of each woven tape portion 6 is 5 cm. The lateral width of both ends of the wide woven fabric 2 and the thermal cutting line 12 is about 1 cm.

  As is clear from FIG. 5, the wide woven fabric 2 is heat-cut into a strip shape immediately after weaving by the heating knife 18 installed in front of the breast beam 16 on the high-speed loom 15 combined with the jacquard machine 14. As a result, the wide woven fabric 2 is roughly cut between the marks 10 and 10 of the thermal cutting line 12 by heat cutting, and four intermediate tape woven fabrics 1 are obtained simultaneously. The four heat-cut tape fabrics 1 are each wound on a roll 20 in a high-speed loom 15. The tape fabric 1 is heat-cut in the tension state after weaving on the high-speed loom 15 so that both side edges are fused, and linear fiber melted portions (not shown) are generated on both side edges. .

  The tape fabric 1 is attached to the laser cutting machine 5 (FIG. 6) in the next laser cutting process, and cuts in parallel along the six laser cutting lines 8, that is, the marks 10, so that both side edges are welded. Seven woven tapes 3 are obtained. A carbon dioxide laser capable of cutting thermoplastic fibers is attached to the laser cutter 5. In the laser cutting machine 5, when the tape fabric 1 is supplied from the roll 20 onto the belt 32, the tape fabric 1 is fed forward by the rotation of the net conveyor 28, so that the work table 34 is substantially covered without tension. In this state, the pressure reducing device is operated, and the tape fabric 1 is adsorbed on the surface of the belt 32 by the suction action. The laser cutting machine 5 is provided with a photosensor such as a phototube, and the nozzles of the four laser heads 22 are detected by detecting the position of each mark 10 on the fabric regardless of the running position of the tape fabric 1. The position is exactly matched with the mark 10.

  In a state where the tape fabric 1 is adsorbed on the belt 32, the laser head 22 is appropriately moved through the movable arm 44 by computer control. Since the number of laser heads 22 is smaller than the number of additions of the six laser cutting lines 8 and the marks 10 at both ends of the tape fabric 1, the movable arm 44 is moved back and forth at high speed along the arrows in FIG. The entire cutting line 8 is processed in the laser cutting machine 5 by appropriately shifting the laser head 22 in the lateral direction. The tape fabric 1 is accurately cut by the condensed beam 60 from each laser head 22 whose position is always adjusted, and the woven tape 3 having a width of 5 cm is wound around the roll 36.

  The obtained woven tape 3 is formed with welded portions 61 (FIGS. 3 and 4) on both side edges thereof by laser cutting, and the welded portion does not cause fraying of the yarn and is laser-cut in a substantially tension-free state. Therefore, wakame-like deformation does not occur. The welded portion 61 is thinner than the fiber melted portions on both side edges of the tape fabric 1 and does not hinder the stretchability of the woven tape 3. As shown in FIG. 3, the woven tape 3 is further cut at a transverse cutting point 68 and used as a woven label 72.

  In order to obtain a decorative tape, a polyurethane elastic yarn or a polyether polyester-based elastic yarn is used as the warp, the fineness thereof is 10 to 100 denier, and the weft is a draft elastic yarn having a twist coefficient of 5000 to 10,000 and a synthetic long fiber. Use twisted yarn. For weaving a wide woven fabric having a width of 155 cm, as in Example 1, a pattern weaving mechanism combining a high-speed rapier loom and a jacquard machine is used.

  The wide woven fabric has, for example, a warp density of 100 to 200 / inch and a weft density of 50 to 100 / inch, and the woven structure is a flat or satin weave. This wide woven fabric pattern has a stripe pattern woven into the woven tape portions 6 arranged in parallel in a strip shape. This wide woven fabric is heat-cut into a belt-like shape on the machine to produce five tape woven fabrics having a width of 30 cm, and fiber melted portions are generated by heat cutting on both side edges of the tape woven fabric.

  The tape fabric is attached to the laser cutting machine 5 in the next laser cutting step, and is cut in parallel along the 14 laser cutting lines 8 with a laser, thereby fusing 15 woven tapes whose side edges are welded. Get. This tape fabric is accurately cut by the focused beam 60 from each laser head 22 whose position is always adjusted, and a woven tape having a width of 2 cm is wound around a roll.

  This woven tape is pulled out from the winding core and conveyed in the horizontal direction by a guide member in an edge sewing device (not shown), and the sewing thread 64 of the edge sewing device has the same color as the weft of the woven tape. With this guide member, the woven tape standing in the longitudinal direction is fed to the first sewing machine for accurate positioning, and one single-sewn stitching portion 66 is formed while intermittently feeding it to the left with a presser disc. The thread 70 is sealed in a straight line. The woven tape with one side stitched is taken up in the horizontal direction, and further stands in the longitudinal direction via another roller, a guide member and a vertical roller, and the original single-ring stitching portion 66 is positioned on the lower side. Further, the woven tape is fed to the second sewing machine by another guide member, and the other single-ring stitching portion 66 is formed while intermittently feeding the woven tape to the right with the presser disc as described above, and the insertion thread 70 is enclosed. Take up around the core.

  In the obtained decorative tape, on both side edges, one sewing thread 64 forming the single ring stitched portions 66 and 66 intersects the welded portion 61 on the side edge of the tape, and the stitches continuously without overlapping. The welded portion 61 is tightly covered with the thin sewing thread 64. When this decorative tape is sewed on the cuffs or shoulders of a knit product such as sportswear, the decorative tape has elasticity, so that it does not cause a sense of incongruity with the knit product and can always maintain a light comfort. Even if the fabric is repeatedly stretched and bent according to the movement of the wearer of the sportswear, the decorative tape can be expanded and contracted accordingly, so that the wearer does not feel uncomfortable or uncomfortable with the sportswear. It can be performed.

It is a schematic plan view which shows an example of the tape fabric based on this invention. It is a schematic plan view which shows partially an example of the wide woven fabric for tapes. It is a schematic plan view which shows an example of the woven tape obtained from the tape fabric. It is a schematic sectional drawing which expands and shows an example of the woven tape which edge-sewn both edges. It is a schematic side view which shows an example of the wide loom used by this invention. It is a schematic plan view which shows an example of the laser cutter used by this invention. It is an expanded sectional view showing roughly the laser head of a laser cutting machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tape woven fabric 2 Tape wide woven fabric 3 Woven tape 5 Laser cutting machine 8 Laser cutting line 10 Mark 12 Thermal cutting line 15 Wide weaving machine 22 Laser head

Claims (6)

  Woven knitted fabric for tapes that simultaneously obtains a plurality of stretchable tapes welded on both side edges by laser cutting, and has at least stretchability by constituting at least warps or knitting yarns in the longitudinal direction. The knitted and knitted fabric for tape in which marks for determining the laser cutting lines are formed in parallel and at least partially woven with thermoplastic fiber yarns in the vicinity of the plurality of laser cutting lines.   A wide woven fabric for tapes that simultaneously obtains a plurality of stretchable tapes welded on both sides by laser cutting, and has at least some stretchability as a whole by forming warp yarns as stretch yarns. A wide-width woven fabric for tape, in which marks for defining a cutting line are formed in parallel, and thermoplastic fiber yarns are woven at least partially in the vicinity of a thermal cutting line and a laser cutting line having a slight width.   The woven or knitted fabric according to claim 1 or 2, wherein the mark is an identification yarn woven at the time of printing attached to the woven fabric or weaving of the woven fabric.   A wide woven fabric having some elasticity is woven by a high-speed loom, and the wide woven fabric is roughly cut into a width of 10 to 60 cm by heat cutting on the machine, and the tape fabric thus roughly cut is attached to a laser cutting machine. A tape manufacturing method in which a laser head is cut into a plurality of tapes while being positioned on a table fabric mark or computer control while being sent to a table in a substantially tension-free state, and at the same time, both side edges of each tape are welded.   Tape fabrics may be woven entirely with thermoplastic fiber yarns, partially woven with thermoplastic fiber yarns in the vicinity of the longitudinal thermal cutting and laser cutting lines, or of the thermal and laser cutting lines. The tape manufacturing method of Claim 4 which has apply | coated the thermoplastic resin to the vicinity. 5. The tape manufacturing method according to claim 4, wherein the rough cutting line in the wide woven fabric is located in a thermal cutting line having a slight width, and the rough cutting line portion is removed by the next laser cutting.

Images