JP7368088B2 - How to manufacture fastener stringers - Google Patents

Description

The present invention relates to a method for manufacturing a fastener stringer for a slide fastener.

A fastener stringer 100 shown in FIG. 8 is known as a conventional fastener stringer. This fastener stringer 100 includes a fastener tape and a fastener element sewn to the fastener tape, and is configured such that the fastener tape and the fastener element have different colors. Further, a core string is inserted through the fastener element. Further, the sewing threads (upper thread, lower thread) for sewing the core string and the fastener element onto the fastener tape are the same color as the fastener element. Note that there are two fastener stringers 100 shown in FIG. 8, and the respective fastener elements are in mesh with each other.

Here, a conventional method for manufacturing the fastener stringer 100 will be described. First, a fastener element is sewn onto a fastener tape with sewing thread to create a fastener stringer, and then the fastener stringer is dyed with a first color. The dyed fastener stringer is then disassembled to obtain a fastener element dyed in a first color. At this time, the disassembled zipper tape and sewing thread are discarded. Further, in parallel with the above, a sewing thread dyed with a first color and a fastener tape dyed with a second color are prepared. Then, the fastener elements dyed in the first color are sewn onto the fastener tape dyed in the second color using sewing thread dyed in the first color to obtain the fastener stringer 100.

As described above, in the conventional method for manufacturing fastener stringers, there is a step of decomposing the fastener stringer dyed with the first color (decomposition step), and a step of decomposing the fastener stringer dyed with the first color with the second color. The process of re-sewing the zipper tape (re-sewing process) and discarding unnecessary zipper tape and sewing thread have resulted in high manufacturing costs.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a fastener stringer and a method for manufacturing the fastener stringer that can color code each member of the fastener stringer at low cost.

The above object of the present invention is achieved by the following configuration.
(1) A fastener stringer comprising a fastener tape, a coiled fastener element attached to one side edge of the fastener tape, and a fixing thread for fixing the fastener element to the fastener tape, the fastener stringer comprising: Out of the whole of the fastener tape, the fastener element, and the fixed thread member, at least the fastener element is made of the first resin, and the whole of the fastener tape and the fixed thread member are not selected to be made of the first resin. The member is made of a second resin, the first resin is dyeable with the first dye, the second resin is dyeable with the second dye, and the member selected to be made of the first resin is dyed with the first dye. A fastener stringer characterized in that the member selected to be made of a second resin is dyed with a second dye.
(2) The fastener stringer according to (1), wherein the first resin is polyester and the second resin is cellulose fiber.
(3) A method for manufacturing a fastener stringer comprising a fastener tape, a coiled fastener element attached to one side edge of the fastener tape, and a fixing thread that fixes the fastener element to the fastener tape, Out of the entire fastener tape, the fastener element, and the fixed thread member, at least the fastener element is made of a first resin, and of the entire fastener tape and the fixed thread member, the first resin is selected. A fixing step of fixing the fastener element to the fastener tape, wherein the member that is not attached is made of a second resin, the first resin is dyeable with a first dye, the second resin is dyeable with a second dye, and the fastener element is fixed to the fastener tape. and a first dyeing step of dyeing the member selected to be made of the first resin with a first dye, and a second dyeing step of dyeing the member selected to be made of the second resin with the second dye. Features: A manufacturing method for fastener stringers.
(4) A method for manufacturing a fastener stringer comprising a fastener tape, a coiled fastener element attached to one side edge of the fastener tape, and a fixing thread that fixes the fastener element to the fastener tape, Out of the entire fastener tape, the fastener element, and the fixed thread member, at least the fastener element is made of a first resin, and of the entire fastener tape and the fixed thread member, the first resin is selected. A fixing step of fixing the fastener element to the fastener tape, wherein the member that is not attached is made of a second resin, the first resin is dyeable with a first dye, the second resin is dyeable with a second dye, and the fastener element is fixed to the fastener tape. and a dyeing step of simultaneously dyeing each of the members selected to be made of the first resin and the members selected to be made of the second resin with a dye that is a mixture of the first dye and the second dye. A method for manufacturing fastener stringers.

According to the fastener stringer of the present invention, the member selected to be made of the first resin is dyed with the first dye, and the member selected to be made of the second resin is dyed with the second dye. The necessary disassembly process, re-sewing process, and discarding of parts are no longer necessary, and each part of the fastener stringer can be color-coded at low cost.

According to the method for manufacturing a fastener stringer of the present invention, there is a first dyeing step of dyeing a member selected to be made of a first resin with a first dye, and a step of dyeing a member selected to be made of a second resin with a second dye. Since the second dyeing step is provided, the disassembly step, the re-sewing step, and the discarding of the members, which were necessary in the conventional manufacturing method, are not necessary, and each member of the fastener stringer can be color-coded at low cost.

According to the method for manufacturing a fastener stringer of the present invention, each of the members selected to be made of the first resin and the members selected to be made of the second resin are simultaneously dyed with a dye that is a mixture of the first dye and the second dye. Since the dyeing process is included, the disassembly process, re-sewing process, and discarding of parts required in conventional manufacturing methods are no longer necessary, and each part of the fastener stringer can be color-coded at low cost and in a short time.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a surface view illustrating a slide fastener in which an embodiment of a fastener stringer according to the present invention is adopted. FIG. 2 is an enlarged sectional view of the slide fastener shown in FIG. 1. FIG. FIG. 2 is a surface view of the periphery of the fastener element in FIG. 1; 4 is a back view of FIG. 3. FIG. It is a surface view explaining the modification of the fastener stringer based on this invention. 6 is a back view of FIG. 5. FIG. It is a figure explaining one embodiment of the manufacturing method of the fastener stringer concerning the present invention. It is a figure explaining the manufacturing method of the conventional fastener stringer.

EMBODIMENT OF THE INVENTION Hereinafter, a slide fastener in which an embodiment of a fastener stringer according to the present invention is adopted will be described in detail based on the drawings. In the following explanation, the upper side means the front side with respect to the paper surface of FIG. 1, the lower side means the back side with respect to the paper surface of FIG. 1, the front side means the upper side with respect to the paper surface of FIG. The lower side with respect to the paper surface of FIG. 1, the left side is the left side with respect to the paper surface of FIG. 1, and the right side is the right side with respect to the paper surface of FIG. Further, the left-right direction is also referred to as the width direction. Further, the upper surface is the front surface, and the lower surface is the back surface.

As shown in FIG. 1, the slide fastener SF is attached to a pair of left and right fastener stringers 10, a slider SL that engages and separates the fastener elements 20 of the left and right fastener stringers 10, and the front end sides of the left and right fastener stringers 10, respectively. It includes a top stop part P1 and a bottom stop part P2 attached to the rear end sides of the left and right fastener stringers 10. Then, by moving the slider SL forward, the left and right fastener elements 20 are engaged with each other, and by moving the slider SL backward, the left and right fastener elements 20 are separated. In addition, the lower stop part P2 may be an opening tool consisting of an insert pin, a box pin, and a box body.

As shown in FIGS. 1 and 2, the fastener stringer 10 includes a fastener tape 11, a fastener element 20 attached to the upper surface of one side edge 11a of the fastener tape 11, and a core string 21 inserted through the fastener element 20. , an upper thread (fixed thread) 31 and a lower thread (fixed thread) 32 for sewing the fastener element 20 onto the fastener tape 11. Note that the upper thread 31 and the lower thread 32 are sewing threads.

The fastener tape 11 is a tape made by weaving or knitting synthetic resin threads, and is made using a loom or knitting machine to have a predetermined width, a predetermined thickness, and a predetermined structure. . Furthermore, the entire fastener tape 11 of this embodiment is made of one type of synthetic resin thread. This means that, for example, when the fastener tape 11 is made of polyester threads, rayon threads are not included. When the fastener tape 11 is made using a loom, the entire front and back surfaces of the fastener tape 11 are woven with polyester yarns using polyester warp yarns and polyester weft yarns.

The fastener element 20 is a coil-shaped fastener element made of monofilament made of synthetic resin, and is sewn onto the upper surface of the one side edge 11a of the fastener tape 11 with an upper thread 31 and a lower thread 32. Further, a core string 21 is inserted into the inside of the fastener element 20. Note that the core string 21 is inserted into the inside of the fastener element 20 in the process of molding the fastener element 20.

In this embodiment, the fastener element 20, core string 21, upper thread 31, and lower thread 32 are made of polyester, which is the first resin, and the entire fastener tape 11 is made of rayon, which is the second resin. . The fastener tape 11 may be made of Tencel (registered trademark: Courtles), which is a cellulose fiber similar to rayon, cupra, cotton, or the like. Further, the second resin may be a polyester that can be dyed with a cationic dye.

The first resin, polyester, can be dyed with a first dye such as a disperse dye, and the second resin, rayon (or Tencel (registered trademark: Courtles)), can be dyed with a reactive dye, a direct dye, a thren dye, etc. It can be dyed with a second dye different from the first dye. For this reason, as shown in FIGS. 3 and 4, the polyester fastener element 20, core cord 21, upper thread 31, and lower thread 32 are dyed in a first color with a first dye, and the rayon fastener tape 11 is dyed with a first dye. is entirely dyed with a second dye in a second color different from the first color. In addition, in the drawings, the part showing the "/" pattern is the part dyed with the first color, and the part showing the "・" pattern is the part dyed with the second color. .

As explained above, according to the fastener stringer 10 of the present embodiment, the polyester fastener element 20, the core cord 21, the upper thread 31, and the lower thread 32 are dyed in the first color with the first dye, and the polyester Since the entire zipper tape 11 is dyed in the second color with the second dye, the disassembly process, re-sewing process, and discarding of parts required in conventional manufacturing methods are no longer necessary, and the zipper stringer can be manufactured at low cost. Each of the 10 members can be color-coded.

As a modification of this embodiment, the entire fastener element 20, core cord 21, and fastener tape 11 are made of polyester, which is the first resin, and the upper thread 31 and the lower thread 32 are made of rayon, which is the second resin. You may also do so. In this case, as shown in FIGS. 5 and 6, the entirety of the polyester fastener element 20, core string 21, and fastener tape 11 is dyed in the first color with the first dye, and the rayon upper thread 31 and the lower thread are dyed with the first dye. Yarn 32 is dyed a second color with a second dye.

Further, the combination of the resin materials (color-coded) of each member of the fastener stringer 10 is not limited to the above, and it is sufficient that at least the resin material of the fastener element 20 is polyester, and the combination of the resin materials (color-coded) of each member of the fastener stringer 10 is not limited to the above. The resin material of the thread 31 and the bobbin thread 32) may be either polyester or rayon (or cellulose fiber such as Tencel (registered trademark: Courtles)). Further, as long as the material can be dyed differently with the first dye and the second dye, for example, a combination of nylon as the first resin and cotton as the second resin may be used.

Next, with reference to FIG. 7, an embodiment of a method for manufacturing a fastener stringer according to the present invention will be described. Note that FIG. 7 shows a case where the fastener stringer of FIGS. 3 and 4 is manufactured.

As shown in FIG. 7, the manufacturing method of this embodiment includes a sewing step (fixing step) ST1 in which the fastener element 20 and the core cord 21 are sewn onto the fastener tape 11 using needle thread 31 and bobbin thread 32, which are sewing threads. , a first dyeing step ST2 of dyeing the polyester fastener element 20, core string 21, upper thread 31, and lower thread 32 (members selected to be made of the first resin) with a first dye, and a cellulose-based material such as rayon. A second dyeing step ST3 is provided in which the entire fiber fastener tape 11 (the member selected to be made of the second resin) is dyed with a second dye different from the first dye.

As explained above, according to the method for manufacturing a fastener stringer of the present embodiment, the first dyeing step ST2 involves dyeing the polyester fastener element 20, the core string 21, the upper thread 31, and the lower thread 32 with the first dye. , and a second dyeing step ST3 in which the entire rayon fastener tape 11 is dyed with a second dye, thereby eliminating the need for the disassembly step, re-sewing step, and discarding of parts that were necessary in conventional manufacturing methods. , each member of the fastener stringer 10 can be color-coded at low cost.

Note that the dyeing method shown in FIG. 7 is a two-bath dyeing method in which polyester dyeing with the first dye and rayon dyeing with the second dye are carried out separately; however, the method is not limited to this, and the method is not limited to this. , each member of the zipper stringer may be individually dyed by one-bath dyeing in which polyester dyeing and rayon dyeing are carried out simultaneously. In this case, compared to two-bath dyeing, it is possible to further reduce the manufacturing cost by reducing the number of steps, and the dyeing time can be halved.

It should be noted that the present invention is not limited to what has been exemplified in the above embodiments, and can be modified as appropriate without departing from the gist of the present invention.
For example, in the above embodiment, the present invention is applied to a fastener stringer configured to fix a fastener element to a fastener tape with an upper thread and a lower thread, but the present invention is not limited to this, and the fastener element is woven into a fastener tape. Alternatively, the present invention may be applied to a fastener stringer configured to be fixed by weaving. Moreover, in this case, the upper thread, the lower thread, and the core string are not included in the structure of the fastener stringer, and the fixing thread that fixes the fastener element is part of the threads that make up the fastener tape. The types of resin materials (selection of the first resin and the second resin) used for the fixed thread and the threads other than the fixed thread constituting the fastener tape may be the same or different.

SF slide fastener SL slider 10 fastener stringer 11 fastener tape 11a one side edge 20 fastener element 21 core string 31 needle thread (fixed thread, sewing thread)
32 Lower thread (fixed thread, sewing thread)
ST1 Sewing process (fixing process)
ST2 First dyeing process ST3 Second dyeing process

Claims (2)

A fastener tape (11), a coil-shaped fastener element (20) attached to one side edge (11a) of the fastener tape (11), and the fastener element (20) is fixed to the fastener tape (11). A method for manufacturing a fastener stringer (10) comprising a fixed thread (31, 32),
Among the entirety of the fastener tape (11), the fastener element (20), and the fixed threads (31, 32), at least the fastener element (20) is made of a first resin;
Among the members of the entire fastener tape (11) and the fixing threads (31, 32), the members not selected to be made of the first resin are made of the second resin,
The member selected to be made of the first resin can be dyed with the first dye, the member selected to be made of the second resin can be dyed with the second dye,
a fixing step (ST1) of fixing the fastener element (20) to the fastener tape (11) using the fixing thread (31, 32);
Among the fastener stringers (10) obtained in the fixing step (ST1), each member selected to be made of a first resin, including at least the fastener element (20) , is dyed with a first dye to form the fastener element. (20) is attached to the fastener tape (11) by the fixing threads (31, 32), and a first dyeing step (ST2) in which the dye is dyed in a first color;
Among the fastener stringers (10) obtained in the fixing step (ST1), each member selected to be made of a second resin was treated with a second dye so that the fastener elements (20) were bonded to the fastener tape (11). ), a second dyeing step (ST3) of dyeing the dye in a second color different from the first color while attached to the fixing thread (31, 32) ,
A method for manufacturing a fastener stringer (10), characterized in that the member selected to be made of the first resin is polyester, and the member selected to be made of the second resin is polyester dyeable with a cationic dye. A fastener tape (11), a coil-shaped fastener element (20) attached to one side edge (11a) of the fastener tape (11), and the fastener element (20) is fixed to the fastener tape (11). A method for manufacturing a fastener stringer (10) comprising a fixed thread (31, 32),
Among the entirety of the fastener tape (11), the fastener element (20), and the fixed threads (31, 32), at least the fastener element (20) is made of a first resin;
Among the members of the entire fastener tape (11) and the fixing threads (31, 32), the members not selected to be made of the first resin are made of the second resin,
The member selected to be made of the first resin can be dyed with the first dye, the member selected to be made of the second resin can be dyed with the second dye,
a fixing step (ST1) of fixing the fastener element (20) to the fastener tape (11) using the fixing thread (31, 32);
Of the fastener stringer (10) obtained in the fixing step (ST1), each member selected to be made of the first resin and each member selected to be made of the second resin, including at least the fastener element (20). a dyeing process of simultaneously dyeing each with a dye mixed with a first dye and a second dye;
Each member selected to be made of a first resin is dyed in a first color with a first dye, and each member selected to be made of a second resin is dyed in a second color different from the first color with a second dye. dyed ,
A method for manufacturing a fastener stringer (10), characterized in that the member selected to be made of the first resin is polyester, and the member selected to be made of the second resin is polyester dyeable with a cationic dye.

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