WO2024084669A1 - ファスナーテープ及びその製造方法、並びにファスナーストリンガー - Google Patents

ファスナーテープ及びその製造方法、並びにファスナーストリンガー Download PDF

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Publication number
WO2024084669A1
WO2024084669A1 PCT/JP2022/039176 JP2022039176W WO2024084669A1 WO 2024084669 A1 WO2024084669 A1 WO 2024084669A1 JP 2022039176 W JP2022039176 W JP 2022039176W WO 2024084669 A1 WO2024084669 A1 WO 2024084669A1
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WO
WIPO (PCT)
Prior art keywords
fastener tape
core
yarn
fastener
thread
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2022/039176
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English (en)
French (fr)
Japanese (ja)
Inventor
祐一 宮崎
弘樹 東谷
誠人 有沢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YKK Corp
Original Assignee
YKK Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by YKK Corp filed Critical YKK Corp
Priority to DE112022007929.0T priority Critical patent/DE112022007929T5/de
Priority to JP2024551164A priority patent/JP7780665B2/ja
Priority to PCT/JP2022/039176 priority patent/WO2024084669A1/ja
Priority to CN202280099743.1A priority patent/CN119855517A/zh
Priority to US18/996,891 priority patent/US20260026582A1/en
Publication of WO2024084669A1 publication Critical patent/WO2024084669A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/24—Details
    • A44B19/34—Stringer tapes; Flaps secured to stringers for covering the interlocking members
    • A44B19/346—Woven stringer tapes
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/24—Details
    • A44B19/34—Stringer tapes; Flaps secured to stringers for covering the interlocking members
    • A44B19/343—Knitted stringer tapes

Definitions

  • This disclosure relates to a fastener tape and a manufacturing method thereof, as well as a fastener stringer.
  • the fastener tape of a fastener stringer When the fastener tape of a fastener stringer is sewn to the fabric of a garment or the like with sewing thread, the fastener tape may ripple, resulting in uneven spacing between the fastener elements and resulting in poor meshing of the fastener elements.
  • the fastener tape takes an arch shape in which the side edge to which the fastener elements are attached is curved concavely and the opposite side edge is curved convexly (see Figure 4 of the present application).
  • the degree of the arch shape of the fastener tape in Figure 4 of the present application is exaggerated to a greater extent than in reality. Also, the fastener tape is observed by viewing its main surface (e.g., its upper surface or lower surface) from the front.
  • Patent Document 1 which addresses the above-mentioned issue, a thread having a higher elongation recovery rate than other warp threads is arranged adjacent to the outside of the core cord. Even if the fastener tape stretches when the fastener element is attached, the side edge portion tends to return to its original length, and the stringer bias is maintained in a positive state. Patent Document 2 discloses making the length of the warp threads on one side edge portion of the fastener tape relatively longer in order to form an arch shape of the fastener tape (see Figure 4 in the same document).
  • Patent Document 3 discloses weaving a braided cord into the woven portion of a fastener tape and bonding the two together by thermal shrinkage of the woven portion.
  • the braided cord is formed by knitting an outer circumferential knit layer consisting of multiple warp knitted yarns around a core yarn. False twisted yarn and spun yarn are given as examples of the core yarn, and it is described that it is preferable to reduce the stretch in the warp direction (page 6, lines 7-10).
  • Patent Document 4 discloses using a latent shrink-producing polyester fiber as the weft yarn.
  • JP 2004-229729 A China Utility Model No. 212590695 Japanese Utility Model Application Publication No. 55-422 JP 2006-175129 A
  • the inventors of this application have discovered a new problem: how to bring the fastener stringer into a positive stringer bias state using a different approach than conventional methods.
  • a fastener tape has a core portion provided at a side edge portion of the fastener tape to which a fastener element is attached, the core portion including at least one core thread and a tubular portion surrounding the at least one core thread, and the at least one core thread includes a shrinkable thread that shrinks in response to the difference in the thermal shrinkage rates of different polymeric materials.
  • the core portion includes a total of N (N is a natural number equal to or greater than 2) core yarns as the at least one core yarn, and each of the total N core yarns is the crimpable yarn.
  • the shrinkable yarn is a composite yarn formed by bonding together threads made of at least two types of polymeric materials having different thermal shrinkage rates.
  • the shrinkable yarn is a composite yarn in which at least two types of polymeric materials with different thermal shrinkage rates are spun together.
  • the crimpable yarn crimps in a spiral and/or wavy manner.
  • the core portion is a core cord woven into the fastener tape.
  • the tubular portion includes a knitted structure in which multiple leather threads are woven.
  • the at least one core yarn there is no shrinkable yarn that shrinks in response to the difference in thermal shrinkage rate of different polymeric materials.
  • a fastener stringer includes any of the fastener tapes described above and a fastener element attached to the side edge portion of the fastener tape.
  • a method for manufacturing a fastener tape includes the steps of forming a fastener tape having a core portion provided on one side edge portion, the core portion including at least one core thread and a tubular portion surrounding the at least one core thread, the at least one core thread including a shrinkable thread that shrinks in accordance with the difference in thermal shrinkage rate of different polymeric materials, and heating the fastener tape so that the shrinkable thread shrinks.
  • the method further includes, after the step of heating the fastener tape, a step of stretching the fastener tape along its longitudinal direction so as to reduce the degree of crimping of the crimpable yarn.
  • the fastener tape is stretched by running along a path defined by a number of rollers while tension is applied in the longitudinal direction.
  • the method further includes, after the step of stretching the fastener tape, a step of reheating the fastener tape to increase the degree of crimping of the crimpable yarn.
  • the method further includes a step of dyeing the fastener tape, and the step of reheating the fastener tape is performed during the process of drying the fastener tape by heating.
  • At least one step of reducing the degree of crimp of the crimpable yarn and at least one step of increasing the degree of crimp of the crimpable yarn are performed simultaneously or in that order.
  • FIG. 1 is a schematic front view of a slide fastener according to one embodiment of the present disclosure.
  • 4 is a schematic diagram showing a state in which a fastener element is attached to a side edge portion of a fastener tape.
  • FIG. 1 is a schematic diagram showing the structure of a side edge portion of a fastener tape, in which fastener elements are omitted.
  • FIG. 2 is a schematic front view of a fastener stringer with a positive stringer bias.
  • FIG. 13 is a schematic front view of a fastener stringer showing a state in which the stringer bias has changed from a positive state to a zero state due to shrinkage associated with sewing.
  • FIG. 4 is a schematic diagram showing that the tubular portion of the core is formed in a braided structure.
  • FIG. 2 is an enlarged schematic view of one core yarn.
  • FIG. 2 is a schematic diagram showing two crimped core yarns before heat setting.
  • FIG. 9 is a schematic diagram showing two crimped core yarns after heat setting, which shows an increase in crimp per unit distance (e.g., number of helices per unit distance) compared to FIG.
  • FIG. 2 is a schematic diagram showing a crimpable yarn that crimps in a wavy manner.
  • FIG. 4 is a schematic diagram showing a state in which a fastener tape runs along a running path determined by rollers.
  • FIG. 10 is a schematic diagram showing another embodiment in which a crimpable yarn is enclosed as a core yarn in the hollow woven portion of the side edge of the fastener tape.
  • FIG. 13 is a schematic diagram showing another example in which a core is woven into the fastener tape on the opposite side of the coiled element.
  • the front-rear direction corresponds to the direction of movement of the slider 9 for opening and closing the slide fastener 1, and corresponds to the longitudinal direction of the slide fastener 1 (or the fastener stringer 2 or the fastener tape 3).
  • the left-right direction is a direction perpendicular to the front-rear direction, and corresponds to the width direction of the slide fastener 1 (or the fastener stringer 2 or the fastener tape 3).
  • the up-down direction is a direction perpendicular to the front-rear and left-right directions, and corresponds to the thickness direction of the fastener tape 3.
  • the up-down direction does not have to correspond to the vertical direction (direction of gravity).
  • the terms indicating directions referred to in this specification are understood based on the slide fastener 1, and are unrelated to the vertical direction (direction of gravity).
  • Figure 1 is a schematic front view of the slide fastener 1.
  • Figure 2 is a schematic diagram showing the state in which a fastener element 4 is attached to a side edge portion 31 of a fastener tape 3.
  • Figure 3 is a schematic diagram showing the structure of the side edge portion 31 of the fastener tape 3, and the fastener element is omitted in order to illustrate the structure.
  • the slide fastener 1 is typically a flexible, elongated member that extends in the front-rear direction with a substantially constant left-right width (the same goes for the fastener stringer 2 and fastener tape 3).
  • the slide fastener 1 has a pair of left and right fastener stringers 2, each of which includes a fastener tape 3 and a fastener element 4, and a slider 9 for engaging and disengaging these fastener stringers 2.
  • the left and right fastener elements 4 attached to the opposing side edges 31 of the left and right fastener stringers 2 mesh with each other, and the left and right fastener stringers 2 are engaged.
  • the slide fastener 1 shown in the figure has an upper stop 81 and a lower stop 82 as options, but both can be omitted.
  • the slider 9 is made of, for example, metal or resin.
  • the fastener tape 3 is a woven or knitted fabric or a mixture of these, and has high flexibility.
  • the fastener tape 3 has a side edge 31 close to the center line CL of the slide fastener 1 that coincides with the movement trajectory of the slider 9, another side edge 32 away from the center line CL, and a tape main portion 33 provided between these side edges 31, 32.
  • the width W3 of the fastener tape 3 is equal to the sum of the width W31 of the side edge 31, the width W32 of the side edge 32, and the width W33 of the tape main portion 33.
  • the fastener element 4 comprises an array of resin elements affixed (e.g., via injection molding) to the side edge 31 of the fastener tape 3 (see Figures 1 and 2).
  • the fastener element 4 comprises an array of metal elements crimped to the side edge 31 of the fastener tape 3.
  • other types of fastener elements e.g., coil elements formed by helically winding a resin monofilament
  • the fastener tape 3 has two tape main surfaces, namely, the tape upper surface 3m and the tape lower surface 3n, which face opposite each other in the vertical direction to determine the thickness of the fastener tape 3 (see FIG. 2). Furthermore, the fastener tape 3 has a ground structure 37 constructed from a large number of tape threads (e.g., a plurality of warp threads 35 (35a, 35b, 35c, 35d, 35e, 35f, etc.) and at least one weft thread 36). The number of warp threads 35 is appropriately set according to the target tape width W3 of the fastener tape 3.
  • a large number of tape threads e.g., a plurality of warp threads 35 (35a, 35b, 35c, 35d, 35e, 35f, etc.
  • the number of warp threads 35 is appropriately set according to the target tape width W3 of the fastener tape 3.
  • the warp threads 35 are aligned in the warp direction, and the weft threads 36 extend in a meandering manner in the weft direction so as to rise and fall relative to the warp threads 35.
  • Each warp thread 35 repeatedly straddles two parts of the weft threads aligned in the weft direction (i.e., running parallel in the weft direction) as one unit (see FIG. 3).
  • the ground structure 37 is not limited to such a woven structure, and may be a knitted structure.
  • PET polyethylene terephthalate
  • a core portion 5 is provided on the side edge portion 31 of the fastener tape 3 to which the fastener element 4 is attached.
  • the core portion 5 includes at least one (preferably multiple) core thread 51 and a (hollow) tubular portion 52 that surrounds or contains the at least one core thread 51.
  • the core portion 5 protrudes upward from the tape upper surface 3m that defines the thickness of the fastener tape 3, and can protrude downward from the tape lower surface 3n (see Figure 2).
  • the core portion 5 has a portion embedded in the fastener element 4, which increases the attachment strength of the fastener element 4.
  • the core 5 is a core string woven into the fastener tape 3. That is, the core 5 is manufactured as a core string in advance before the fastener tape 3 is woven.
  • the fact that the core 5 is a core string means that even after the core string has been woven into the fastener tape 3, it can be removed as a core string from the fastener tape 3 by releasing the restraint by the weft thread 36.
  • the use of a core string as the core 5 facilitates more precise control of the degree of adhesion between the core thread 51 and the tube portion 52, or the degree of static friction that may occur between the two.
  • a plurality of cores 5 are combined and provided on the side edge 31.
  • an upper core 5m and a lower core 5n are used as the two cores 5, which are combined in the vertical direction and protrude on both the top and bottom sides.
  • Each of the upper core 5m and the lower core 5n is restrained by the weft thread 36 at a position between adjacent warp threads 35, but the method of fixing the cores in the fastener tape 3 is not limited to this embodiment.
  • At least one core thread 51 includes a crimpable thread that has been crimped in response to the difference in the thermal shrinkage rate of different polymer materials.
  • a thread that has a small elongation in the warp direction is used as a core thread.
  • the inventors of the present application have discovered that, contrary to this common technical knowledge, the use of a crimpable thread as the core thread 51 makes it easier to adjust the stringer bias of the fastener stringer 2 to a positive state.
  • the core yarn shrinks to a degree according to (for example, proportional to) the difference in the thermal shrinkage rate of the different polymeric materials.
  • This shrinkage of the core yarn 51 causes the fastener stringer 2 to have a positive stringer bias, and at the same time, the static friction between the core yarn 51 and the tubular portion 52 increases (because the degree of shrinkage of the shrinkable yarn (core yarn 51) increases).
  • the stringer bias may become excessively positive when a shrinkable yarn is used as the core yarn 51, this can be adjusted by stretching the fastener stringer 2 along its longitudinal direction. Furthermore, due to the increased static friction between the core yarn 51 and the tubular portion 52, the fastener stringer 2 can maintain an appropriate stringer bias state after the adjustment.
  • the process of stretching the fastener tape 3 may not be necessary. Also, the process of stretching the fastener tape 3 after heat setting can be carried out at any time and to any degree. It can also be carried out at the sewing stage where the fastener tape 3 of the fastener stringer 2 is sewn to the fabric of the garment after the slide fastener 1 is sold.
  • the fastener stringer 2 can easily maintain its current stringer bias in a positive state (unless an external force is applied) based on the static friction between the core yarn 51 and the tubular portion 52. It can also prevent the fastener stringer 2 from changing from a state in which the stringer bias is positive to a state in which the stringer bias is zero during the period from the time of manufacture or sale of the slide fastener 1 to the time of sewing at the sewing factory.
  • the stitching of the sewing thread shown by the dashed line in Figure 5 causes the fastener tape 3 to shrink along the stitching, but because the stringer bias is in a positive state, the side edge 31 of the fastener tape 3 changes from a concave, arc-shaped curved state ( Figure 4) to a state extending in a straight line ( Figure 5).
  • the front-to-rear pitch of the fastener elements 4 falls within the allowable tolerance range.
  • the state of the fastener stringer 2 shown in Figure 5 can also be called a state in which the stringer bias is zero.
  • the stringer bias of the zipper stringer 2 cannot be well controlled in a positive state (compared to the present disclosure). This supports the idea that the zipper stringer 2 can be well controlled to have its stringer bias in a positive state depending not only on the shortening due to thermal shrinkage but also on the shrinkage exerted by the crimpable yarn. Although an illustration of the stringer bias in a negative state is omitted, this refers to a state in which the zipper stringer 2 is warped in the opposite direction to that shown in FIG. 4.
  • the core 5 may include at least one core yarn 51, totaling N (N is a natural number of 2 or more). Each of the total N core yarns 51 may be a crimpable yarn. The total N core yarns 51 may be a doubled yarn drawn together in the warp direction, or a twisted yarn twisted along the warp direction. In some cases, the core 5 includes only a crimpable yarn as the core yarn 51, while in other cases, the core yarn 51 includes a non-crimpable yarn (e.g., a textured yarn).
  • crimpable yarn means a yarn that shrinks in response to the difference in the thermal shrinkage rate of different polymeric materials (i.e., does not mean the shrinkability exhibited by false twist textured yarn).
  • False twist textured yarn is typically spun from a single polymeric material and made of a single polymeric material, and has a shrinkability in response to subsequent processing, but does not shrink in response to the difference in the thermal shrinkage rate of different polymeric materials. If non-crimping yarns are included, the number of crimping yarns should be greater than the number of non-crimping yarns.
  • the tubular portion 52 includes a braided structure in which multiple skin threads 52a-52d are braided (see, for example, FIG. 6). Each skin thread 52a-52d is typically a non-shrinkable yarn spun from a single polymeric material.
  • FIG. 6 is a simplified diagram created for explanation purposes.
  • a cylindrical virtual space R51 indicates a space in which multiple core threads 51 are arranged.
  • Specific methods for forming a knitted structure in the tubular portion 52 are known to those skilled in the art. For example, four latch needles are arranged in the circumferential direction at equal intervals of 90°, and sheath threads are fed in an eight-shape to the latch needles that face each other at an angle of 180°. Needle loops are formed at positions corresponding to the latch needles. As shown in FIG. 6, the sheath threads with a phase difference of 180° in the circumferential direction are continuously entangled to form the knitted structure.
  • the shrinkable yarn used as the core yarn 51 is a composite yarn in which threads 71 and 72 made of at least two types of polymeric materials with different heat shrinkage rates are bonded together, in other words, it can be a composite yarn 7 in which at least two types of polymeric materials with different heat shrinkage rates are spun together (see, for example, FIG. 7).
  • the polymeric material of the thread 71 has a first heat shrinkage rate
  • the polymeric material of the thread 72 has a second heat shrinkage rate different from the first heat shrinkage rate.
  • the polymeric material of the thread 71 is, for example, PET (polyethylene terephthalate).
  • the polymeric material of the thread 72 is, for example, PTT (polytrimethylene terephthalate).
  • the threads 71 and 72 are not limited to being bonded adjacent to each other, but may be bonded in a manner in which one is included in the other. It is also possible to spin a shrinkable yarn from three types of polymeric materials with different heat shrinkage rates.
  • the degree of crimping of a crimpable yarn changes before and after it is crimped.
  • Figure 8 shows a crimpable core yarn before heat setting
  • Figure 9 shows a crimpable core yarn after heat setting.
  • heat setting increases the degree of crimping per unit distance (e.g., the number of spirals per unit distance).
  • bundling multiple core yarns 51, each of which is a crimpable yarn they can be treated as a single composite yarn, as shown by the dotted lines in Figures 8 and 9.
  • the three-dimensional shape of the crimpable yarn is not limited to a regular helical shape as shown in Figure 8, but may be a random helical shape in which the helical density varies along the length of the yarn. Also, as shown in Figure 10, the crimpable yarn may be wavy rather than helical. It is also conceivable that a single crimpable yarn may have a shape that is helical in one section along its length and wavy in another section, i.e., where helical and wavy shapes appear randomly.
  • the degree of crimping of a crimpable yarn can be expressed by the number of spiral or wave convexities contained per unit distance (1 cm).
  • a crimpable yarn crimps in a spiral shape one convexity corresponds to one turn of the spiral (see the dashed-dotted box in Figures 8 and 9).
  • a crimpable yarn crimps in a wave shape one convexity corresponds to one wave (see the dashed-dotted box in Figure 10).
  • the shrinkable yarn may be limited to the core yarn 51 of the core portion 5. That is, all other yarns in the fastener tape 3 except for the core yarn 51 are non-shrinkable yarns and are spun from a single polymeric material and made of a single polymeric material. In other words, the fastener tape 3 does not contain shrinkable yarns that shrink in response to the difference in the thermal shrinkage rate of different polymeric materials, except for the core yarn 51. In this case, the degree of shrinkage can be easily adjusted by adjusting the number of shrinkable core yarns 51, that is, excessive or insufficient shrinkage can be easily avoided.
  • the side edge portion 32 and the tape main portion 33 do not contain shrinkable yarns that shrink in response to the difference in the thermal shrinkage rate of different polymeric materials.
  • the side edge portion 31 does not contain shrinkable yarns that shrink in response to the difference in the thermal shrinkage rate of different polymeric materials, except for the core yarn 51.
  • the side edge portion 32 is made of warp threads of the same thickness and density as the warp threads of the tape main portion 33, and does not include threads (commonly known as selvage threads) that are thicker than the warp threads of the tape main portion 33. Omitting the selvage threads promotes weight reduction and cost reduction of the fastener stringer.
  • FIG. 11 is a schematic diagram showing the procedure for carrying out the load test.
  • Figure 12 is a graph showing the results of the load test.
  • the yarn bundle 6 is fixed at the upper end point P1 of the test section, hangs down vertically, and has a weight 61 attached to the lower end point P2 of the test section.
  • the amount of displacement of the intermediate point P3, which is halfway between the upper end point P1 and the lower end point P2 was observed before and after the yarn bundle 6 was pulled toward the ground by the weight 61.
  • the dashed line L1 in Figure 12 shows the load curve when a non-shrinkable yarn is used as the core yarn.
  • the dashed line L2 shows the load curve when a shrinkable yarn with a relatively small heat shrinkage rate is used as the core yarn.
  • the solid line L3 shows the load curve when a shrinkable yarn with a relatively large heat shrinkage rate is used as the core yarn.
  • a crimpable yarn with an elongation of 7% or more it is advisable to use a crimpable yarn with an elongation in the range of 7% to 10%.
  • the elongation of the crimpable yarn is evaluated in the load test shown in Figure 11, and specifically, it is calculated as the elongation rate ((stretched length - original length) / original length) x 100 when a weight of a specified mass is attached to a bundle of three crimpable yarns.
  • step S1 may include a step of forming the core 5 as a core string and a step of weaving the fastener tape 3 including the core 5.
  • the step of forming the core 5 as a core string may include a step of drawing together a plurality of core threads 51 and a step of forming a tubular portion 52 on the outer periphery of the bundle of the plurality of core threads 51 (see FIG. 6). It is preferable to knit the tubular portion 52 as a knitted structure.
  • the core 5 is bound by the weft yarn and woven into the fastener tape 3.
  • a pair of upper and lower cores 5 (core strings) can also be woven into the fastener tape 3.
  • the fastener tape 3 is heat-set (i.e., heated) so that the shrinkable yarn shrinks (S2).
  • the set temperature for heat-setting depends on the material of the shrinkable yarn, but for example, the set temperature of a heat source such as a heater is set to a temperature within the range of 160°C to 200°C.
  • the heat source and the side edge portion 31 of the fastener tape 3 are placed facing each other at a close distance, and the side edge portion 31 of the fastener tape 3 is heated.
  • Different polymer materials in the shrinkable yarn used as the core yarn 51 thermally shrink to different degrees. As a result, the shrinkable yarn shrinks, the length of the core portion 5 becomes shorter, and the stringer bias becomes positive.
  • a heater can be placed along the transport path of the fastener tape 3.
  • the heater is, for example, an electric heater that generates heat by electrical heating, but other types of heaters can also be used.
  • the first post-treatment may include a dyeing process for the fastener tape 3.
  • the fastener tape 3 may be transported to a dyeing tank that stores a dye solution or to the outlet of an inkjet printer for dyeing using multiple rolls (for example, rollers 101, 102 shown in FIG. 14).
  • the fastener tape 3 travels along a path determined by multiple rollers while tension is applied in its longitudinal direction. This reduces the degree of crimping of the crimpable yarn and weakens the degree to which the stringer bias is positive.
  • the second post-treatment is carried out on the fastener tape 3 (S4).
  • the second post-treatment may include a drying process for the fastener tape 3. In the drying process, the fastener tape is reheated. A heater can be used for this purpose as described above. If dyeing is carried out in the first post-treatment process, the fastener tape 3 to which the dye solution has adhered or penetrated is dried. In either case, the degree of shrinkage of the shrinkable yarn used as the core yarn 51 is increased by the thermal shrinkage.
  • step S2 at least one step of reducing the degree of crimping of the crimpable yarn and at least one step of increasing the degree of crimping of the crimpable yarn may be performed simultaneously or in this order to facilitate the fastener tape 3 being in a state of moderate stringer bias.
  • the first and second post-treatment steps (S3, S4) include a process for reducing the degree of crimping of the crimpable yarn, and a process for increasing the degree of crimping of the crimpable yarn.
  • Steps S3 and S4 are not limited to dyeing and drying steps.
  • tension is applied to the fastener tape 3 in its longitudinal direction.
  • the fastener tape 3 is also heated in response to the heat transferred from the molten resin or the die during injection molding.
  • the first post-treatment step stressing the fastener tape 3 in the die cavity
  • the second post-treatment step thermal shrinkage of the shrinkable yarn in response to the heat transferred from the die
  • a tubular portion 52 as a hollow weave 38 in part of the ground structure 37 of the fastener tape 3, and introduce a core thread 51 into this tubular portion 52. In this case as well, the same effect as described above can be obtained.
  • a coil-shaped element can also be used as the fastener element 4.
  • the coil-shaped element is sewn to the main tape surface (e.g., the bottom surface) of the fastener tape 3.
  • a core portion 5 is provided on the opposite side of the fastener tape 3.
  • one of the core portions in FIGS. 2 and 3 e.g., only the upper core portion 5m
  • is woven into the fastener tape 3 the lower core portion 5n in FIGS. 2 and 3 is omitted.
  • Other configurations are also envisioned.

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  • Slide Fasteners (AREA)
PCT/JP2022/039176 2022-10-20 2022-10-20 ファスナーテープ及びその製造方法、並びにファスナーストリンガー Ceased WO2024084669A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE112022007929.0T DE112022007929T5 (de) 2022-10-20 2022-10-20 Verschlussband und verfahren zu dessen herstellung und verschlussstrang
JP2024551164A JP7780665B2 (ja) 2022-10-20 2022-10-20 ファスナーストリンガー及びその製造方法
PCT/JP2022/039176 WO2024084669A1 (ja) 2022-10-20 2022-10-20 ファスナーテープ及びその製造方法、並びにファスナーストリンガー
CN202280099743.1A CN119855517A (zh) 2022-10-20 2022-10-20 拉链带及其制造方法、和拉链牙链带
US18/996,891 US20260026582A1 (en) 2022-10-20 2022-10-20 Fastener tape and method for manufacturing same, and fastener stringer

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PCT/JP2022/039176 WO2024084669A1 (ja) 2022-10-20 2022-10-20 ファスナーテープ及びその製造方法、並びにファスナーストリンガー

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Citations (6)

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JPS475002Y1 (https=) * 1969-02-06 1972-02-22
JPS4828369B1 (https=) * 1970-12-22 1973-08-31
JP2002209613A (ja) * 2001-01-17 2002-07-30 Ykk Corp スライドファスナー用テープ
JP2006239085A (ja) * 2005-03-02 2006-09-14 Ykk Corp ファスナーストリンガ連続製造機のファスナーテープ供給装置
WO2014119150A1 (ja) * 2013-01-31 2014-08-07 Ykk株式会社 ファスナーテープ無しストリンガー及びスライドファスナー付き物品
JP2018102711A (ja) * 2016-12-27 2018-07-05 Ykk株式会社 ファスナーテープ及びファスナーストリンガー

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