US20260026582A1 - Fastener tape and method for manufacturing same, and fastener stringer - Google Patents

Fastener tape and method for manufacturing same, and fastener stringer

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Publication number
US20260026582A1
US20260026582A1 US18/996,891 US202218996891A US2026026582A1 US 20260026582 A1 US20260026582 A1 US 20260026582A1 US 202218996891 A US202218996891 A US 202218996891A US 2026026582 A1 US2026026582 A1 US 2026026582A1
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US
United States
Prior art keywords
thread
fastener tape
core
crimpable
fastener
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.)
Pending
Application number
US18/996,891
Other languages
English (en)
Inventor
Yuichi Miyazaki
Hiroki Higashitani
Makoto Arisawa
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
Publication of US20260026582A1 publication Critical patent/US20260026582A1/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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

Definitions

  • a fastener tape of a fastener stringer is waved as the fastener tape is sewn by a sewing thread to a fabric such as clothes or the like, resulting in a potential failures in engagement of fastener elements due to uneven interspaces between the fastener elements.
  • a fastener stringer is desirably set in a Plus-biased state of fastener stringer as a prior-condition of being sewn to a fabric.
  • the fastener tape When the fastener stringer is in the Plus-biased state, the fastener tape is shaped into an arch with its side-edge portion, to which the fastener elements are attached, curved in a recessed manner and with its side-edge portion on the opposite side curved in a protruding manner (see FIG. 4 of the present application).
  • the arched shape of the fastener tape is largely exaggerated in its degree compared with an actual product for a purpose of illustration.
  • the fastener tape is observed with its main surface (e.g. a top surface or a bottom surface thereof) in front of a viewer.
  • the core portion includes total N (N indicates a natural number of 2 or more) core threads as said at least one core thread, and each of the total N core threads is the crimpable thread.
  • the crimpable thread is a composite thread including at least two types of polymer materials spun together and having different thermal shrinkage ratios.
  • the crimpable thread is crimped like a helix and/or wave.
  • the core portion is a core yarn being woven in the fastener tape.
  • the tubular portion includes a knitted structure of knitted plural skin threads.
  • no crimpable thread is included which is crimped in accordance with a difference in thermal shrinkage ratio between different polymer materials.
  • Fastener stringer includes: the fastener tape of any one of the above-described ones; and fastener elements attached to the side-edge portion of the fastener tape.
  • Method for manufacturing a fastener tape includes: configuring a fastener tape provided with a core portion arranged in one side-edge portion thereof, the core portion including at least one core thread and a tubular portion that encloses the at least one core thread, and the at least one core thread including a crimpable thread that is crimped in accordance with a difference in thermal shrinkage ratio between different polymer materials; and heating the fastener tape to allow the crimpable thread to crimp.
  • the method further includes: after said heating the fastener tape, stretching the fastener tape along its longitudinal direction so as to lower a degree of crimp of the crimpable thread.
  • the fastener tape runs in a passage defined by plural rollers while a tension is applied thereto in the longitudinal direction, and is thereby stretched.
  • the method further includes after said stretching the fastener tape, reheating the fastener tape so as to increase the degree of crimp of the crimpable thread.
  • the method further includes dyeing the fastener tape, said reheating the fastener tape is conducted by heating and drying the fastener tape.
  • At least one process of lowing a degree of crimp of the crimpable thread and at least one process of increasing the degree of crimp of the crimpable thread are conducted simultaneously or in this order.
  • FIG. 1 is a schematic elevational view of a slide fastener according to an aspect of the present disclosure.
  • FIG. 2 is a schematic diagram showing a condition where a fastener element is attached to a side-edge portion of fastener tape.
  • FIG. 3 is a schematic diagram showing a structure of side-edge portion of fastener tape, illustration of the fastener elements omitted.
  • FIG. 4 is a schematic elevational view of fastener stringer in Plus-biased state of fastener stringer.
  • FIG. 5 is a schematic elevational view of fastener stringer showing that the fastener stringer is shifted from Plus-biased state of fastener stringer to Zero-biased state of fastener stringer due to constriction associated with sewing.
  • FIG. 6 is a schematic diagram showing that a tubular portion of core portion is formed from a knitted structure.
  • FIG. 7 is an expanded schematic diagram of one core thread.
  • FIG. 8 is a schematic diagram of two crimpable core threads prior to thermal setting.
  • FIG. 9 is a schematic diagram of two crimpable core threads after thermal setting where a degree of crimp per a unit length (e.g. a number of helical portions per a unit length) is increased relative to the one shown in FIG. 8 .
  • a degree of crimp per a unit length e.g. a number of helical portions per a unit length
  • FIG. 10 is a schematic diagram of crimpable thread which is crimped into a wave.
  • FIG. 11 is a schematic view of a procedure of load test.
  • FIG. 12 is a graph showing a result of load test.
  • FIG. 13 is a schematic flowchart of a method for manufacturing a fastener tape.
  • FIG. 14 is a schematic diagram showing a condition where a fastener tape runs in a passage defined by rollers.
  • FIG. 15 is a schematic view showing another embodiment where crimpable threads are enclosed as core thread in a double weave (hollow weave) of side-edge portion of fastener tape.
  • FIG. 16 is a schematic view of another example where a core portion is woven into the fastener tape on the opposite side of a coil element.
  • the front-rear direction matches a direction of movement of slider 9 for opening and closing slide fastener 1 , and is identical to a longitudinal direction of the slide fastener 1 (alternatively of fastener stringer 2 or fastener tape 3 ).
  • the left-right direction is a direction orthogonal to the front-rear direction, and is identical to a width direction of the slide fastener 1 (alternatively of fastener stringer 2 or fastener tape 3 ).
  • the up-down direction is a direction orthogonal to the front-rear and left-right directions, and is identical to a thickness direction of the fastener tape 3 .
  • the up-down direction matches a vertical direction (gravity direction). That is, the direction-related terms referred in the present specification are to be understood based on the slide fastener 1 and is irrelevant to the vertical direction (gravity direction).
  • FIG. 1 is a schematic elevational view of slide fastener 1 .
  • FIG. 2 is a schematic diagram showing a condition where a fastener element 4 is attached to a side-edge portion 31 of fastener tape 3 .
  • FIG. 3 is a schematic diagram showing a structure of side-edge portion 31 of fastener tape 3 , illustration of the fastener elements omitted for a purpose of depicting the structure.
  • the slide fastener 1 is a flexible elongated part that extends in the front-rear direction with a substantially constant width in the left-right direction (the same applies to fastener stringer 2 and fastener tape 3 ).
  • the slide fastener 1 has a pair of left and right fastener stringers 2 each including a fastener tape 3 and fastener elements 4 , and a slider 9 for engaging and disengaging these fastener stringers 2 .
  • the slider 9 moves frontward, the left and right fastener elements 4 attached to the opposed side-edge portions 31 of the left and right fastener stringers 2 are engaged one another, and the left and right fastener stringers 2 are coupled.
  • the slide fastener 1 illustrated in the figures may optionally include a front stop 81 and a rear stop 82 but these can be omitted.
  • the slider 9 is made of metal or resin, for example.
  • the fastener tape 3 is a woven fabric or knitted fabric or mixture of them, and has a high flexibility.
  • the fastener tape 3 has: a side-edge portion 31 located closer to a central line CL of the slide fastener 1 that matches a movement trajectory of the slider 9 ; another side-edge portion 32 located away from the central line CL, and a tape main portion 33 located between these side-edge portions 31 , 32 .
  • a width W 3 of fastener tape 3 is equal to a total value of a width W 31 of the side-edge portion 31 , a width W 32 of the side-edge portion 32 and a width W 33 of the tape main portion 33 .
  • the fastener elements 4 comprise an array of resin elements attached (via injection molding, for example) to the side-edge portion 31 of the fastener tape 3 (See FIGS. 1 and 2 ).
  • the fastener elements 4 comprise an array of metal elements swaged to the side-edge portion 31 of the fastener tape 3 .
  • other types of fastener elements a coil-like element of helically wound resin-made monofilament, for example may be used.
  • the fastener tape 3 has tape main surfaces facing opposite sides in the up-down direction so as to define its thickness, i.e. has a tape top surface 3 m and a tape bottom surface 3 n (See FIG. 2 ). Furthermore, the fastener tape 3 has a ground structure 37 structured from plural tape threads (plural warp threads 35 ( 35 a , 35 b , 35 c , 35 d , 35 e, 35 f . . . ) and at least one weft thread 36 , for example). The number of the warp threads 35 may be set appropriately in accordance with a target width W 3 of the fastener tape 3 .
  • the warp threads 35 are aligned one another as being pulled in the warp direction, and the weft thread 36 extends to meander in the weft direction so as to flow and sink relative to the respective warp threads 35 .
  • Each of the warp threads 35 repeats crossing respective units each consisting of two portions of the weft thread aligned one another as being pulled in the weft direction (i.e. the two portions running in parallel) (See FIG. 3 ).
  • the ground structure 37 should not be limited to such a woven structure but may be a knitted structure.
  • the tape top surface 3 m and the tape bottom surface 3 n are formed as two-dimensional uneven surface in accordance with floating and sinking of the weft thread 36 .
  • All of the tape threads, which are component threads of the fastener tape 3 are spun from Polyethylene terephthalate (PET) resin and made of the same material, not necessarily limited to this though.
  • PET resin is a plant-derived material.
  • the side-edge portion 31 of the fastener tape 3 to which the fastener elements 4 are attached is provided with a core portion 5 .
  • the core portion 5 includes at least one core thread 51 (preferably plural core threads 51 ) and a (hollow) the tubular portion 52 that surrounds or encloses the at least one core thread 51 .
  • the core portion 5 may protrude upward from the tape top surface 3 m and protrude downward from the tape bottom surface 3 n thereof which are for defining the thickness of the fastener tape 3 (see FIG. 2 ).
  • the core portion 5 has a portion embedded in the fastener element 4 , thereby the attachment strength of the fastener element 4 is improved.
  • the core portion 5 is a core yarn that is woven into the fastener tape 3 . That is, the core portion 5 is produced as a core yarn in advance of weaving the fastener tape 3 .
  • the fact that the core portion 5 is a core yarn indicates that the core portion 5 can be taken out from the fastener tape 3 as a core yarn by releasing it from the weft thread 36 even when the core yarn has been woven into the fastener tape 3 .
  • the use of the core yarn as the core portion 5 may facilitate more precise control of the degree of contact between the core thread 51 and the tubular portion 52 or the degree of static friction therebetween.
  • plural (two in the example of FIGS. 2 and 3 ) core portions 5 are paired and arranged in the side-edge portion 31 .
  • a top core portion 5 m and a bottom core portion 5 n are used as two core portions 5 , and they are paired in the up-down direction and protrude on the both top and bottom sides.
  • Each of the top core portion 5 m and the bottom core portion 5 n is bound by the weft thread 36 at a position between adjacent warp threads 35 , but a method of securing the core portion in the fastener tape 3 should not be limited to this manner.
  • At least one core thread 51 includes a crimp able thread which is crimped in accordance with a difference in thermal shrinkage ratio between different polymer materials.
  • threads with lower elongation value in the warp direction are used as core threads.
  • the present inventor has newly discovered that the Plus-biased state of fastener stringer may be more easily imparted to the fastener stringer 2 by employing the crimp able thread(s) as the core thread(s) 51 .
  • a degree of crimp of the crammable thread (the core thread 51 ), which has been crimped by thermal setting, can be regulated e.g.
  • the core thread would crimp in a degree in accordance with (e.g. in proportion to) a difference in thermal shrinkage ratio between different polymer materials of the core thread.
  • This crimp of the core thread 51 imparts to the fastener stringer 2 the Plus-biased state of fastener stringer, and simultaneously increases the static friction between the core thread 51 and the tubular portion 52 (because of increased degree of crimp of the crimpable thread (the core thread 51 )).
  • fastener stringer 2 may maintain its appropriate-biased state of fastener stringer after the adjustment, owing to the increased static friction between the core thread 51 and the tubular portion 52 .
  • the process of stretching the fastener tape 3 would be unnecessary depending on a degree of crimp of the crimpable thread caused by the thermal setting.
  • the process of stretching the fastener tape 3 after the thermal setting may be performed at any timing and in any degree. This may be performed in a sewing process where the fastener tape 3 of the fastener stringer 2 is sewn to a fabric of clothes after the slide fastener 1 is sold.
  • a crimpable thread is employed as a core thread, allowing the fastener stringer 2 to more easily maintain its current Plus-biased state of fastener stringer based on the static friction between the core thread 51 and the tubular portion 52 (unless external force applied).
  • a time window from a time point of manufacturing or selling of slide fastener 1 to a time point of sewing it at a sewing factory it may be suppressed that the fastener stringer 2 shifts from the Plus-biased state of fastener stringer to Zero-biased state of fastener stringer.
  • the contraction is caused in the fastener tape 3 by and along stitches of a sewing thread shown by alternate long and short dashed lines in FIG. 5 .
  • the side-edge portion 31 of the fastener tape 3 shifts from a curved state like a recess and an arch ( FIG. 4 ) to a linearly extending state ( FIG. 5 ). Accordingly, the pitches of the fastener elements 4 in the front-rear direction would be within a tolerance range.
  • the state of the fastener stringer 2 depicted in FIG. 5 may be referred to as a zero-biased state of fastener stringer.
  • the core portion 5 may include total N (N indicates a natural number of 2 or more) core threads 51 as the at least one core thread 51 .
  • Each of the total N core threads 51 may be a crimpable thread.
  • the total N core threads 51 may be pulled and aligned in the warp direction to configure a doubling (associated threads), or may be twisted together along the warp direction to configure a strand of threads.
  • the core portion 5 includes crimpable thread(s) only as the core thread(s) 51 but in other cases, the core threads 51 include a non-crimpable thread (e.g. textured thread).
  • crimpable thread indicates a thread that is crimped in accordance with a difference in thermal shrinkage ratio between different polymer materials (that is, it does not indicate a crimp of False-twisted thread).
  • a False-twisted thread is spun from a single polymer material and consists of the single polymer material, and has a crimp characteristic in accordance with following processes; however, it does not crimp in accordance with a difference in thermal shrinkage ratio between different polymer materials.
  • a number of crimpable threads is preferably greater than a number of non-crimpable threads.
  • the tubular portion 52 includes a knitted structure of the plural skin threads 52 a - 52 d which are knitted (e.g. see FIG. 6 ).
  • Each of the skin thread 52 a - 52 d is typically a non-crimpable thread and made through spinning of single polymer material. Configuring the tubular portion 52 as the knitted structure allows the contact between the core threads 51 and the tubular portion 52 to be maintained regardless of how the core threads 51 are crimped, and selecting the skin threads having an appropriate thermal shrinkage ratio allows the core threads to be tightened by the skin threads.
  • FIG. 6 is a schematic drawing drawn for a purpose of illustration.
  • an imaginary cylindrical space R 51 indicates a space where the plural core threads 51 are arranged.
  • Specific methods for configuring the tubular portion 52 as a knitted structure are well-known for a skilled person in the art. For example, four latching needles are arranged in a circumferential direction at an equal interval of 90°, and the skin thread is fed, so as to trace a numeral letter of 8, to the latching needles which are opposing at 180°. Needle loops are formed at locations corresponding to the latching needles. As depicted in FIG. 6 , the entanglement between the skin threads having a phase difference of 180° in the circumferential direction continues, thereby the knitted structure is configured.
  • the crimpable thread used as the core thread 51 is a composite thread having filaments 71 , 72 of at least two types of polymer materials having different thermal shrinkage ratios; in other words, the crimpable thread may be a composite thread 7 made through spinning together at least two types of polymer materials having different thermal shrinkage ratios (e.g. see FIG. 7 ).
  • the polymer material of the filament 71 has a first thermal shrinkage ratio
  • the polymer material of the filament 72 has a second thermal shrinkage ratio which is different from the first thermal shrinkage ratio.
  • the polymer material of the filament 71 is PET (polyethylene terephthalate), for example.
  • the polymer material of the filament 72 is PTT (polytrimethylene terephthalate), for example.
  • the filaments 71 , 72 may be coupled such that one thread is encapsulated by the other thread. It is possible to spin a crimpable thread from three types of polymer materials which differ in the thermal shrinkage ratio.
  • the degree of crimp of the crimpable thread changes between before and after the crimpable thread is crimped.
  • FIG. 8 shows the crimpable core thread before the thermal setting
  • FIG. 9 shows the crimpable core thread after the thermal setting.
  • the thermal setting results in increased degree of crimp per a unit length (e.g. increased number of helical units per a unit length).
  • the core threads 51 each being the crimpable thread, may be bundled to allow one to handle them as one yarn depicted by dotted line in FIGS. 8 and 9 .
  • the three-dimensional shape of the crimpable thread should not be limited to a regular helical shape as depicted in FIG. 8 but may be a random helical shape where the density of helical units changes along the length direction of the thread.
  • the crimpable thread may be shaped like a wave as depicted in FIG. 10 unlike the helix.
  • One crimpable thread may be helical in one given zone and may be wave-like in another zone along its length direction. That is, envisioned is that the crimpable thread has a shape having a random pattern of helical shape and wave-like shape.
  • the degree of crimp of the crimpable thread may be expressed by a number of protrusions in accordance with helix or wave per a unit length ( 1 cm).
  • one protrusion corresponds to one winding of the helix (see a frame illustrated by alternate long and short dashed lines in FIGS. 8 and 9 ).
  • one protrusion corresponds to one unit of wave (see a frame illustrated by alternate long and short dashed lines in FIG. 10 ).
  • the crimpable thread may be introduced only to the core thread 51 of the core portion 5 . That is, every thread in the fastener tape 3 other than the core thread(s) 51 is a non-crimpable thread, and is made of single polymer material through spinning of the single polymer material. In other words, except for the core thread(s) 51 , the faster tape 3 does not include a crimpable thread that is crimped in accordance with a difference in thermal shrinkage ratio between different polymer materials. In this case, the degree of crimp may be easily adjusted based on adjustment of the number of the crimpable core thread 51 , i.e. easily avoided is that the extent of crimp becomes too high or too low.
  • the side-edge portion 32 and the tape main portion 33 do not include any crimpable thread that is crimped in accordance with a difference in thermal shrinkage ratio between different polymer materials.
  • the side-edge portion 31 does not include a crimpable thread that is crimped in accordance with a difference in thermal shrinkage ratio between different polymer materials.
  • the side-edge portion 32 is configured from warp threads that are equal in thickness and density to the warp threads of the tape main portion 33 , and does not include a thread (so-called selvage thread) that is thicker than the warp threads of the tape main portion 33 . In a case where the selvage threads are omitted, light-weight and cost-down of the fastener stringer may be facilitated.
  • FIG. 11 is a schematic view showing a procedure of load test.
  • FIG. 12 is a graph showing a result of load test.
  • the bundle 6 is fixed at the top end point P 1 in its test zone and linearly extends vertically downward, and a weight 61 is attached to the bottom end point P 2 in the test zone.
  • An amount of displacement of the midpoint P 3 located at the center between the top end point P 1 and the bottom end point P 2 is monitored in timings before and after the bundle 6 is pulled by the weight 61 toward the ground.
  • the broken line L 1 in FIG. 12 shows a load curve where the non-crimpable threads are used as the core threads.
  • the alternate long and short dashed lines L 2 show a load curve where crimpable threads, having relatively smaller thermal shrinkage ratio, are used as the core threads.
  • the solid line L 3 shows a load curve where crimpable threads, having relatively larger thermal shrinkage ratio, are used as the core threads.
  • the use of the crimpable threads as the core threads allows the faster tape 3 to stretch more greatly as seen in L 2 and L 3 . This indicates easier adjustment in the length of the of the fastener tape 3 after the thermal setting, and could be a remedy for excessive crimp of the core thread 51 .
  • a crimpable thread which has an elongation value (elongation ratio) of 7% or more.
  • a crimpable thread having an elongation value of 7%-10% is used preferably.
  • the elongation value of the crimpable thread would be evaluated by the load test shown in FIG. 11 , and in particular be calculated as an elongation value (((elongated length-original length)/original length)*100) in a condition where a weight of a given mass is attached to a bundle of three crimpable threads.
  • the faster tape 3 to which the core portion 5 is attached is configured (S 1 ).
  • the fastener tape 3 with the core portion 5 which is provided in the side-edge portion 31 is configured.
  • automatic loom or knitting machine may be used.
  • the step S 1 may include configuring the core portion 5 as the core yarn, and weaving the fastener tape 3 so as to include the core portion 5 .
  • the step of configuring the core portion 5 as a core yarn may include pulling and aligning plural core threads 51 and configuring a tubular portion 52 around the bundle of the plural core threads 51 (See FIG. 6 ).
  • the tubular portion 52 is preferably configured by knitting as a knitted structure.
  • the core portion 5 is retained by the weft thread and woven into the fastener tape 3 .
  • a pair of top and bottom core portions 5 may be woven into the fastener tape 3 .
  • the fastener tape 3 is thermally set (i.e. heated) to allow the crimpable thread to be crimped (S 2 ).
  • the temperature of thermal setting depends on the material of the crimpable thread, and the heat source such as a heater may be set at a temperature ranging between 160° C. and 200° C., for example.
  • the side-edge portion 31 of the fastener tape 3 and the heat source are placed to face one another in the proximity, and thus heating the side-edge portion 31 of the fastener tape 3 .
  • Different polymer materials thermally shrink in different extents in the crimpable thread used as the core thread 51 .
  • the heater may be located aside a transferring passage for the fastener tape 3 .
  • the heater may be an electric heater that generates heat based on current flow for example, but other types of heaters can be employed.
  • the first post-processing may include dyeing the fastener tape 3 .
  • the fastener tape 3 may be transferred, via plural rollers (e.g. rollers 101 , 102 depicted in FIG. 14 ), into a tank storing a staining solution or toward a discharging port of an ink-jet printer for dyeing.
  • the fastener tape 3 runs in a predefined passage defined by plural rollers while a tension is applied thereto along its longitudinal direction. Therefore, the degree of crimp of the crimpable thread is reduced, lowing the degree of the Plus-biased state of fastener stringer.
  • the second post-processing may include drying the fastener tape 3 .
  • the fastener tape is reheated.
  • a heater may be used similarly to the above-described one.
  • the fastener tape 3 to or into which the dyeing liquid is attached or penetrates would be dried. In either case, the degree of the crimp of the crimpable thread used as the core thread 51 would be enhanced due to the thermal shrinking.
  • step S 2 at least one step for lowing the degree of the crimp of the crimpable thread and at least one step for increasing the degree of the crimp of the crimpable thread may be conducted simultaneously or in this order, thus facilitated is that an appropriate Plus-biased state is imparted to the fastener tape 3 .
  • the former one of the first and second post-processings (S 3 , S 4 ) includes a process for lowering the degree of the crimp of the crimpable thread, and the latter one includes a process for increasing the degree of crimp of the crimpable thread. This allows that, even if the Plus-biased state of the fastener stringer 2 becomes too excessive during the thermal setting (S 2 ), the fastener stringer 2 may be smoothly shifted into an appropriate-biased state through the first and second post-processings.
  • the steps S 3 , S 4 should not be limited to the dyeing and drying. Also when the fastener tape 3 is placed in a cavity of mold for injection molding, a tension is applied to the fastener tape 3 in its longitudinal direction. Moreover, the fastener tape 3 is heated in accordance with heat received from molten resin or mold during the injection molding. In this case, the first post-processing (stretching of the fastener tape 3 in the mold cavity) and the second post-processing (thermal shrinking of crimpable thread in accordance with heat transmitted from the mold) are simultaneously conducted.
  • a tubular portion 52 as a double weave structure 38 may be formed in a part of the ground structure 37 of the fastener tape 3 , and the core thread 51 may be introduced into the tubular portion 52 .
  • the similar effects as noted above may be obtained in this case either.
  • FIG. 16 it is possible to employ a coil element as the fastener elements 4 .
  • the coil element is sewn onto the tape main surface (e.g. the tape bottom surface) of the fastener tape 3 .
  • the core portion 5 is provided on the fastener tape 3 .
  • one of the core portions in FIGS. 2 and 3 e.g. the upper core portion 5 m only
  • is woven into the fastener tape 3 the bottom core portion 5 n in FIGS. 2 and 3 omitted.
  • Other embodiments are also envisioned.

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US18/996,891 2022-10-20 2022-10-20 Fastener tape and method for manufacturing same, and fastener stringer Pending US20260026582A1 (en)

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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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JP (1) JP7780665B2 (https=)
CN (1) CN119855517A (https=)
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JPS475002Y1 (https=) * 1969-02-06 1972-02-22
JPS4828369B1 (https=) * 1970-12-22 1973-08-31
JP3679009B2 (ja) * 2001-01-17 2005-08-03 Ｙｋｋ株式会社 スライドファスナー用テープ
JP4602120B2 (ja) * 2005-03-02 2010-12-22 Ｙｋｋ株式会社 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
CN105050447B (zh) * 2013-01-31 2019-08-06 Ykk株式会社 附有拉链的物品及附有拉链的物品的制造方法、以及链带及拉链
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JP7780665B2 (ja) 2025-12-04
DE112022007929T5 (de) 2025-07-31

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