CN108882780B - Polyester zipper - Google Patents
Polyester zipper Download PDFInfo
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- CN108882780B CN108882780B CN201680084159.3A CN201680084159A CN108882780B CN 108882780 B CN108882780 B CN 108882780B CN 201680084159 A CN201680084159 A CN 201680084159A CN 108882780 B CN108882780 B CN 108882780B
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- Prior art keywords
- fastener
- resin
- pet
- courses
- injection
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
Abstract
Provided is a highly versatile slide fastener with improved reusability. A slide fastener, all the components of which are made of polyethylene terephthalate (PET) resin or polyester resin other than polyethylene terephthalate (PET) resin, comprises a fiber member made of polyethylene terephthalate (PET) resin, and an injection-molded member made of polyester resin other than polyethylene terephthalate (PET) resin, wherein at least one of the polyethylene terephthalate (PET) resin and the polyester resin other than polyethylene terephthalate (PET) resin is of plant origin.
Description
Technical Field
The present invention relates to a polyester slide fastener. The present invention also relates to an article provided with the slide fastener.
Background
In recent years, environmental awareness of the world has increased, and there is a demand for environmentally friendly products in the field of clothing, bags and other articles of apparel, and for example, improvement of reusability of the articles of apparel has become an important issue. Under such circumstances, it is also considered to be a social mission in the era to develop a highly recyclable slide fastener which is often used as an opening/closing material for clothing articles.
In the field of slide fasteners, examples of solving the problem of reusability include International publication No. 2012/056583 (patent document 1), Japanese patent application laid-open No. 2003-225102 (patent document 2), and Japanese patent application laid-open No. 10-243805 (patent document 3).
Patent document 1 proposes a slide fastener in which the content of cellulose fibers is specified to be high in order to be reused as paper (see the abstract of patent document 1).
According to patent document 2, it is considered that a fastener element formed of a composition of a polytrimethylene terephthalate resin as a thermoplastic polyester resin and a crystal nucleating agent and/or an inorganic filler is suitable for use as a fastener element constituting a slide fastener which is excellent in design and rigidity and which can be easily classified when discarded (see paragraph 0009 of patent document 2). Further, with the composition containing a polytrimethylene terephthalate resin described in patent document 2, injection-molded parts such as a slider, a fastener element, an upper stopper, a lower stopper, and a separable bottom end stop can be suitably produced, and it is described that sorting and recovery are facilitated if polytrimethylene terephthalate fibers are used for fiber parts such as a tape, a sewing thread, and a cord (paragraph 0039). It is also described that polyethylene terephthalate (PET) resin is a material requiring complicated condition setting for injection molding (paragraph 0004).
Patent document 3 discloses a slide fastener in which substantially all components are made of the same synthetic resin material, so that waste plastics and waste synthetic resin slide fasteners produced from a production line of synthetic resin slide fasteners can be reused as raw materials. Further, it is described that all the components of the slide fastener can be manufactured using PET, but a slider requiring mechanical strength can also be manufactured using PBT.
[ Prior art documents ]
[ patent document ]
[ patent document 1 ]: international publication No. 2012/056583
[ patent document 2 ]: japanese patent laid-open publication No. 2003-225102
[ patent document 3 ]: japanese laid-open patent publication No. 10-243805
Disclosure of Invention
[ problem to be solved by the invention ]
The technique described in patent document 1 is intended to be reused as paper, and therefore, strength and heat resistance have to be sacrificed compared to those made of resin. Therefore, the use is limited and the versatility is low. The polytrimethylene terephthalate (PTT) resin described in patent document 2 has a problem that it has poor dyeability, and it is difficult to form bias (bias) when a fastener tape is made of polyester such as PTT, and thus core engagement failure occurs when the fastener element is injection molded. Therefore, the applicable slide fastener is limited, and it is difficult to apply the slide fastener to various shapes. Further, the invention described in patent document 3 discloses: all the components of the slide fastener were made of PET, or the slider and the separable bottom end stop were made of PBT, and the remainder was made of PET. However, PET is also polyester, and therefore, the problem of poor injection molding of the fastener elements due to difficulty in forming twill is still unsolved.
In view of the above circumstances, an object of the present invention is to provide a slide fastener with improved reusability and high versatility. Another object of the present invention is to provide an article provided with such a slide fastener.
[ means for solving the problems ]
The present invention provides a slide fastener having a fiber member and an injection-molded member, all of the components of the slide fastener being made of polyethylene terephthalate (PET) resin or polyester resin other than polyethylene terephthalate (PET) resin, wherein the fiber member is made of polyethylene terephthalate (PET) resin, the injection-molded member is made of polyester resin other than polyethylene terephthalate (PET) resin, and at least one of the polyethylene terephthalate (PET) resin and the polyester resin other than polyethylene terephthalate (PET) resin is derived from a plant.
In one embodiment of the slide fastener of the present invention, the injection molded parts are all composed of a material selected from the group consisting of polytrimethylene terephthalate (PTT), polybutylene terephthalate (PBT), and a combination thereof.
In another embodiment of the slide fastener of the present invention, the slide fastener includes: the fastener tape includes a pair of fastener tapes, a pair of element rows attached to opposite side edges of the fastener tapes, and a slider for controlling engagement and disengagement by passing the element rows, wherein the fastener tapes are made of a fibrous material, the element rows are made of an injection-molded member or a fibrous material, and the slider is made of an injection-molded member.
In another embodiment of the slide fastener of the present invention, the element row is an injection molded component.
In another embodiment of the slide fastener of the present invention, the fastener tape is made of a woven fabric having a weft knitting density of 37 to 43 threads/2.54 cm.
In another embodiment of the slide fastener according to the present invention, the fastener tape has a raised portion formed by knitting a core thread into opposite side edges, the element row is attached to the raised portion by injection molding, and the core thread has a core thread and a knit structure in which the number of courses knitted so as to surround the core thread is 20 courses/25.4 mm or more.
In another embodiment of the slide fastener of the present invention, the fastener tape is made of a woven fabric having a weft yarn weaving density of 38 to 42 threads/2.54 cm, and has a raised portion formed by knitting a core thread into opposite side edges, the element rows are attached to the raised portion by injection molding, and the core thread includes a core thread and a knit structure in which the number of courses knitted so as to surround the core thread is 25 courses/25.4 mm or more.
In another embodiment of the slide fastener according to the present invention, the element row is a coil-shaped fiber member.
In another embodiment of the slide fastener of the present invention, the slide fastener further comprises at least one injection-molded member selected from the group consisting of an upper stopper, a lower stopper, and a separable bottom end stop.
The present invention is an article provided with the slide fastener according to the present invention on the other side.
[ technical effects ]
The present invention provides a slide fastener which is highly reusable and highly versatile. That is, the slide fastener according to the present invention is expected to be widely used as an ecological product, including the field of clothing.
Drawings
Fig. 1 is a front view of a slide fastener according to a first embodiment of the present invention.
Fig. 2 is a cross-sectional view taken along the direction X-X' of fig. 1.
Fig. 3 is a front view of a slide fastener according to a second embodiment of the present invention.
Fig. 4 is a front view of a lifting rope using the slide fastener of the present invention.
Fig. 5 is a schematic view showing a structural example of the core rope.
[ description of reference numerals ]
100 zipper
102 pull tab
104 slider
106 upper stop
108 zipper teeth
110 knock-out insert
112 zipper strip
114 core rope
116 reinforcing band
118 pull tab attachment
200 zipper
202 pull tab
204 pull head
206 upper stop
208 zipper teeth
210 lower stop
212 zipper strip
218 pull tab attachment
300 lifting rope
304 pull head
306 lower stop
308 zipper teeth
310 rope
314 core rope
500 core rope
501 core wire
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(1. polyester resin)
In one embodiment, all the components of the slide fastener according to the present invention are made of polyethylene terephthalate (PET) resin or polyester resin other than polyethylene terephthalate (PET) resin. The fibrous part is made of polyethylene terephthalate (PET) resin, and the injection-molded part is made of polyester resin other than polyethylene terephthalate (PET) resin.
By making the constituent members of the slide fastener of only polyester resin, the slide fastener can be reused as a polyester product without disassembling the slide fastener so as to sort the constituent members. The problem of dyeing property is solved by using polyethylene terephthalate (PET) resin as a material constituting the fiber member. On the other hand, by using a polyester resin other than a polyethylene terephthalate (PET) resin to produce an injection-molded part, the injection moldability becomes easy and the impact resistance also becomes strong. This contributes to improvement in product yield and quality stability. From the ecological viewpoint, at least either one of the polyethylene terephthalate (PET) resin and the polyester resin other than the polyethylene terephthalate (PET) resin is preferably derived from a plant, and more preferably both are derived from a plant.
In the present invention, the PET resin is a polyester (polyester) and is a polymer containing terephthalic acid as an acid component of its repeating unit and ethylene glycol as a diol component as essential components. In the PET resin used in the present invention, both the acid component and the glycol component may contain a copolymerization component, and terephthalic acid as the acid component and ethylene glycol as the glycol component are contained in the acid component and the glycol component in an amount of 80 mol% or more, preferably 90 mol% or more, more preferably 95 mol% or more, and most preferably 100 mol%, respectively. When the amount of these is less than 80 mol%, the rigidity which is characteristic of the PET resin may be lost, or the recyclability may be adversely affected.
Examples of the acid component of the copolymerization component used in the PET resin include aromatic dicarboxylic acids such as isophthalic acid, 2, 6-naphthalenedicarboxylic acid, 1, 5-naphthalenedicarboxylic acid, and 2, 7-naphthalenedicarboxylic acid; aliphatic dicarboxylic acids such as adipic acid, sebacic acid, and dodecanedioic acid; or ester-forming derivatives such as alkyl esters and acid halides thereof, and examples of the diol component include low-molecular diols such as trimethylene glycol, tetramethylene glycol, hexamethylene glycol, diethylene glycol, cyclohexanedimethanol, cyclohexanediol, 1,4-bis (2-hydroxyethoxy) benzene (1,4-bis (2-hydroxyethoxy) benzene), and bisphenol a; high molecular weight glycols such as polyethylene glycol, polytetramethylene glycol, polyhexamethylene glycol, and the like; or an ester-forming derivative thereof. These acid components and diol components may be used in combination. Further, PET resins having different compositions may be used in combination.
The polyester resin other than the PET resin is not particularly limited, and is desired to have excellent injection moldability as compared with PET. Examples of such a polyester resin include materials selected from the group consisting of polytrimethylene terephthalate (PTT), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), polybutylene naphthalate (PBN), and combinations thereof. The polyester resin other than the PET resin is preferably a material selected from the group consisting of polytrimethylene terephthalate (PTT), polybutylene terephthalate (PBT), and a combination thereof, and more preferably polytrimethylene terephthalate (PTT).
In the present invention, the PTT resin means a polyester, and is a polymer containing terephthalic acid as an acid component of its repeating unit and trimethylene glycol as a glycol component as essential components. In the PTT resin used in the present invention, both the acid component and the glycol component may contain a copolymerization component, and terephthalic acid as the acid component and trimethylene glycol as the glycol component are contained in the acid component and the glycol component in an amount of 80 mol% or more, preferably 90 mol% or more, more preferably 95 mol% or more, and most preferably 100 mol%, respectively. When the amount of these is less than 80 mol%, the stretchability, shape stability and flexibility which are characteristics of the PTT resin may be lost, or the recyclability may be adversely affected.
As the copolymerization component used in the PTT resin, examples of the acid component include aromatic dicarboxylic acids such as isophthalic acid, 2, 6-naphthalenedicarboxylic acid, 1, 5-naphthalenedicarboxylic acid and 2, 7-naphthalenedicarboxylic acid; aliphatic dicarboxylic acids such as adipic acid, sebacic acid, and dodecanedioic acid; or ester-forming derivatives such as alkyl esters and acid halides thereof, and examples of the diol component include low-molecular diols such as ethylene glycol, tetramethylene glycol, hexamethylene glycol, diethylene glycol, cyclohexanedimethanol, cyclohexanediol, 1,4-bis (2-hydroxyethoxy) benzene, and bisphenol a; high molecular weight glycols such as polyethylene glycol, polytetramethylene glycol, polyhexamethylene glycol, and the like; or an ester-forming derivative thereof. These acid components and diol components may be used in combination. In addition, a plurality of PTT resins having different compositions may be used in combination.
In the present invention, the PBT resin is a polyester, and is a polymer containing terephthalic acid as an acid component of its repeating unit and tetramethylene glycol as a diol component as essential components. In the PBT resin used in the invention, both the acid component and the glycol component may contain a copolymerization component, and terephthalic acid as the acid component and tetramethylene glycol as the glycol component are contained in the acid component and the glycol component in an amount of 80 mol% or more, preferably 90 mol% or more, more preferably 95 mol% or more, and most preferably 100 mol%, respectively. When the amount of these is less than 80 mol%, the elasticity which is a characteristic of the PBT resin may be lost or the recyclability may be adversely affected.
Examples of the acid component of the copolymerization component used in the PBT resin include aromatic dicarboxylic acids such as isophthalic acid, 2, 6-naphthalenedicarboxylic acid, 1, 5-naphthalenedicarboxylic acid, and 2, 7-naphthalenedicarboxylic acid; aliphatic dicarboxylic acids such as adipic acid, sebacic acid, and dodecanedioic acid; or ester-forming derivatives such as alkyl esters and acid halides thereof, and examples of the diol component include low-molecular diols such as ethylene glycol, trimethylene glycol, hexamethylene glycol, diethylene glycol, cyclohexanedimethanol, cyclohexanediol, 1,4-bis (2-hydroxyethoxy) benzene, and bisphenol a; high molecular weight glycols such as polyethylene glycol, polytetramethylene glycol, polyhexamethylene glycol, and the like; or an ester-forming derivative thereof. These acid components and diol components may be used in combination. In addition, a plurality of PBT resins having different compositions may be used in combination.
In the present invention, the PEN resin is a polyester, and is a polymer containing 2, 6-naphthalenedicarboxylic acid as an acid component and ethylene glycol as a diol component as essential components, respectively, as repeating units. In the PEN resin used in the present invention, both the acid component and the glycol component may contain a copolymerization component, and 2, 6-naphthalenedicarboxylic acid as the acid component and ethylene glycol as the glycol component are contained in the acid component and the glycol component in an amount of 80 mol% or more, preferably 90 mol% or more, more preferably 95 mol% or more, and most preferably 100 mol%, respectively. If the amount of these is less than 80 mol%, the ultraviolet-blocking property and mechanical strength, which are characteristics of the PEN resin, may be lost, or the recyclability may be adversely affected.
Examples of the acid component of the copolymerization component used in the PEN resin include aromatic dicarboxylic acids such as terephthalic acid, isophthalic acid, 1, 5-naphthalenedicarboxylic acid, and 2, 7-naphthalenedicarboxylic acid; aliphatic dicarboxylic acids such as adipic acid, sebacic acid, and dodecanedioic acid; or ester-forming derivatives such as alkyl esters and acid halides thereof, and examples of the diol component include low-molecular diols such as trimethylene glycol, tetramethylene glycol, hexamethylene glycol, diethylene glycol, cyclohexanedimethanol, cyclohexanediol, 1,4-bis (2-hydroxyethoxy) benzene, and bisphenol a; high molecular weight glycols such as polyethylene glycol, polytetramethylene glycol, polyhexamethylene glycol, and the like; or an ester-forming derivative thereof. These acid components and diol components may be used in combination. In addition, a plurality of PEN resins having different compositions may be used in combination.
In the present invention, the PBN resin is a polyester, and is a polymer containing, as essential components, 2, 6-naphthalenedicarboxylic acid as an acid component and tetramethylene glycol as a diol component, which are repeating units thereof. In the PBN resin used in the present invention, both the acid component and the glycol component may contain a copolymerization component, and 2, 6-naphthalenedicarboxylic acid as the acid component and tetramethylene glycol as the glycol component are contained in the acid component and the glycol component in an amount of 80 mol% or more, preferably 90 mol% or more, more preferably 95 mol% or more, and most preferably 100 mol%, respectively. When the amount of these is less than 80 mol%, the abrasion resistance, which is a characteristic of the PBN resin, may be lost or the recyclability may be adversely affected.
Examples of the acid component of the copolymerization component used in the PBN resin include aromatic dicarboxylic acids such as terephthalic acid, isophthalic acid, 1, 5-naphthalenedicarboxylic acid, and 2, 7-naphthalenedicarboxylic acid; aliphatic dicarboxylic acids such as adipic acid, sebacic acid, and dodecanedioic acid; or ester-forming derivatives such as alkyl esters and acid halides thereof, and examples of the diol component include low-molecular diols such as ethylene glycol, trimethylene glycol, hexamethylene glycol, diethylene glycol, cyclohexanedimethanol, cyclohexanediol, 1,4-bis (2-hydroxyethoxy) benzene, and bisphenol a; high molecular weight glycols such as polyethylene glycol, polytetramethylene glycol, polyhexamethylene glycol, and the like; or an ester-forming derivative thereof. These acid components and diol components may be used in combination. In addition, a plurality of PBN resins having different compositions may be used in combination.
(2. fiber component)
The fiber member will be explained. The fastener elements constituting the slide fastener are not limited to those that can be fiber elements, and may be fastener tapes, element rows, core strings, reinforcing tapes, and the like. The pull tab may also be formed from a filamentary member. Further, a hanging rope such as a lifting rope may be attached to the slide fastener. The fastener tape generally has: a fastener element mounting portion to which a side edge of the fastener element row is mounted; and a tape main body portion sewn to the main body portion of the article on the opposite side thereof, and the fastener tape can be produced by weaving or knitting fibers. Examples of the fibrous fastener element row include a continuous fastener element row in which a monofilament is formed into a coil shape or a zigzag shape. The core thread is a ridge portion formed by being knitted in along a side edge in the longitudinal direction of the fastener tape. The coupling element can be made to bite into the core rope, thereby improving the attachment strength of the coupling element. The core strand may be composed of a core wire and a tubular knit structure covering the outer periphery of the core wire. In view of reducing the longitudinal elongation, it is preferable to use a plurality of untwisted threads together. In order to prevent the fastener tape from being damaged, the reinforcing tape may be bonded to either or both of the upper end and the lower end of the fastener tape in the width direction of the fastener tape, and a reinforcing tape woven with a plain weave or the like may be used. It is effective that the reinforcing tape is attached so as to be sandwiched between the front surface and the back surface of the fastener tape.
Fig. 5 shows a structural example of the core rope 500. An appropriate number of knitting yarns T (4 in the illustrated case) are arranged in the radial direction around the core yarn 501, the knitting yarns T are bent in the circumferential direction along the outer surface of the core yarn 501 into a 8-shape, and each needle loop L is formed at the turned-over portion thereof1、L2To make the needle knitting of the upper positionArc L1Needle knitting arc L sequentially wound at lower position2Thus, a tubular knit structure is formed around the core wire 501. Then, the needle loop L is passed through the tubular knitting structure1、L2And settling arc l1、l2The core wire 501 can be firmly tightened toward the center portion.
The fiber member is excellent in dyeing properties because it is made of polyethylene terephthalate (PET) resin. However, the injection moldability of the fastener element when the fastener tape is woven becomes a problem. In order to injection mold the fastener elements on the fastener tape, the fastener tape requires a bias. A typical polyester fastener tape uses several nylon fibers having a high shrinkage rate as a fastening thread, and is formed into a twill through a heat setting and dyeing process. However, in the case of a fastener tape made of a polyester, since the difference in the stretch ratio hardly occurs, a straight tape without bias is formed after heat setting and dyeing. When the twill cannot be formed or the twill is insufficiently formed, core engagement failure occurs during the fastener element injection molding, and the yield is significantly reduced.
The present inventors have found that this problem can be solved by increasing the number of courses of the core thread to increase the density and reducing the stretchability while increasing the stretchability by reducing the knitting density of the weft yarn when weaving the fastener tape. Generally, in the production of a slide fastener tape, if the tape is sufficiently shrunk in the heat setting step after weaving, the tape slightly stretches in the bath during dyeing. Here, the increase in the stretchability of the belt makes the belt easily stretchable during dyeing, while the increase in the density of the core rope makes it difficult to stretch during dyeing, thereby forming a bias and forming an injection-moldable belt. The numerical range of the knitting density of the belt and the number of courses of the core rope, which can simultaneously achieve both elimination of the core mesh failure and the strength of the belt in use, is narrow. It is considered that this numerical range is also a major technical contribution of the present invention.
Specifically, the weaving density of the weft yarn of the fastener tape is preferably 37 to 43 threads/inch (2.54cm), and the number of courses of the core thread is preferably 24 courses/25.4 mm or more. Alternatively, the knitting density of the weft of the fastener tape is preferably 37 to 39 threads/inch (2.54cm), and the number of courses of the core thread is preferably 20 courses/25.4 mm or more. By this combination, a fastener tape having excellent core engagement and excellent strength in the injection molding of the fastener element can be obtained. More preferably, the knitting density of the weft yarn of the fastener tape is 38 to 42 courses/inch (2.54cm), the number of courses of the core cord is 25 courses/25.4 mm or more, and still more preferably, the knitting density of the weft yarn of the fastener tape is 38 to 40 courses/inch (2.54cm), and the number of courses of the core cord is 25 courses/25.4 mm or more. The higher the number of the coil rows of the core string is, the more likely the core string is to form a diagonal, but if it is too high, the core string becomes hard and flexible, and thus there is a possibility that the slider becomes heavy to open and close, and therefore, 30 or less, and more preferably 27 or less is preferable. Here, the number of courses of the core yarn means the number of courses aligned in the lateral direction of the knitted fabric constituting the core yarn.
The fineness of the thread constituting the fastener tape may be in the range usually used for fastener tapes, and for example, the fineness may be 75 to 500dTex for warp and 75 to 500dTex for weft, and typically, the fineness may be 100 to 400dTex for warp and 100 to 400dTex for weft. The yarn may be formed of either a monofilament or a multifilament, and one yarn may be formed of a monofilament, a multifilament obtained by bundling 2 or more monofilaments, or a plurality of multifilaments. For example, a yarn composed of 2 multifilaments of 50 monofilaments of 5dTex bundled together is 1 yarn of 500 dTex. The weft yarn is typically composed of 2 multifilaments, although this also depends on the shuttle loom used.
(3. injection molded parts)
Next, the injection molded part will be described. The components constituting the slide fastener are not limited to those that can be injection molded, and may be a slider, a fastener element row, an upper stopper, a lower stopper, a separable bottom end stop, and the like. The slider is a member for passing the element row to control engagement and disengagement. The upper stopper and the lower stopper are attached to the upper end portion or the lower end portion of the fastener chain, and are members for preventing the slider from coming off. The separable bottom end stop is generally composed of a base bar, a socket, and a plug bar, and is attached to the lower end of the fastener chain. The separable bottom end stop has a function of preventing the slider from separating and a function of connecting and separating the fastener chain. These are all components conventionally used in slide fasteners. In addition to the above, for example, the pull tab and various ornaments may be injection molded parts.
The injection-molded article may be dyed, or injection-molded with a pigment added thereto, for a polyester having poor dyeability such as a PTT resin. In addition, dyeing may be further performed after injection molding.
(4. other Components)
The components constituting the slide fastener may be components other than the injection molded component and the fiber component. For example, the reinforcing tape of the fastener tape may be formed of a transparent film made of polyester. The adhesive used for attaching the reinforcing tape is not necessarily a polyester adhesive since it is not a "component" of the slide fastener, but a polyester adhesive is preferably used from the viewpoint of improving recyclability. Examples of the polyester adhesive include thermoplastic polyester hot melt adhesives, ultrasonic welding, and two-component curable adhesives.
(5. first embodiment of slide fastener)
Fig. 1 shows a front view of a slide fastener 100 according to a first embodiment of the present invention. The slide fastener 100 is constituted by: a pair of fastener tapes 112 having a core thread 114 on each of opposite side edges, a pair of rows of fastener elements 108, a slider 104, a tab 102, an upper stopper 106, a separable bottom end stop 110, and a reinforcing tape 116. The rows of zipper elements 108 are injection molded onto the core strand 114. In the present specification, a direction in which the slider slides so as to engage the element rows is referred to as an upper direction, and a direction in which the slider slides so as to disengage the element rows is referred to as a lower direction. Further, a direction perpendicular to the vertical direction and horizontal to the surface of the fastener tape is defined as a width direction. An article in which the rows of fastener elements 108 are attached to the respective fastener tapes 112 is referred to as a fastener stringer. In addition, an article in which each fastener stringer is paired is referred to as a fastener chain.
The fastener tape 112 is woven from PET resin having a weft yarn weaving density in the above range. The core thread 114 is formed by covering a core thread made of PET resin with a warp knitting structure made of PET resin, and is woven or knitted along a side edge in the longitudinal direction of the fastener tape 112. A fastener element row composed of a plurality of PTT-made fastener elements 108 which can be engaged and disengaged is attached to the core thread 114 by injection molding. As shown in fig. 2, the fastener element 108 is injection-molded so as to sandwich a core thread 114 knitted or woven on a side edge of a fastener tape 112 from a front surface and a back surface. The dashed line 104 is an imaginary line of the slider.
The slider 104 can engage and disengage the rows of the pair of fastener elements 108 by inserting and sliding the rows of the fastener elements 108 inside. The pull head 104 further includes a pull tab 102 and a pull tab mounting portion 118, which are injection molded parts made of PTT. The upper stopper 106 is connected to the upper end of the row of fastener elements 108, and is fixed to the side edge of the fastener tape so as to sandwich the core thread 114 from the front and back surfaces of the fastener tape. The stripper inserts 110 are attached and mounted to the lower ends of the rows of zipper teeth 108. The upper stop 106 and the breakaway insert 110 are also injection molded parts made of PTT.
The reinforcing tape 116 is a woven fabric made of PET resin having a plain weave, and is attached to the upper end and the lower end of the fastener tape 112 across the front surface and the back surface using a polyester adhesive.
(6. second embodiment of slide fastener)
Fig. 3 shows a front view of a slide fastener 200 according to a second embodiment of the present invention. The slide fastener 200 is constituted by a row of coil-shaped fastener elements 208, a fastener tape 212, a slider 204, an upper stopper 206, and a lower stopper 210.
The fastener tape 212 is woven using fibers made of PET resin having a weft yarn weaving density in the range described above. The rows of the coil-shaped fastener elements 208 are formed of monofilaments made of PET resin, and are sewn to side edge portions of the fastener tape 212 by PET resin sewing threads 214. The slider 204 can engage and disengage the rows of the pair of fastener elements 208 by sliding while fitting the rows of the fastener elements 208 inside. The slider 204 also includes a pull tab 202 and a pull tab attachment portion 218, and is an injection molded part made of PTT. The upper stopper 206 is connected to the upper end of the row of fastener elements 108, and the lower stopper 210 is connected to the lower end of the row of fastener elements 208, and is fixed to the side edge of the fastener tape so as to sandwich a sewing line formed by a sewing thread 214 from the front surface and the back surface of the fastener tape. The upper stopper 206 and the lower stopper 210 are also injection-molded parts made of PTT.
The slide fastener of the present invention can be used as an opening/closing tool for articles by being sewn to various articles. When the slide fastener of the present invention is used as an opening/closing member for polyester articles, the slide fastener can be reused for other polyester products without detaching the slide fastener.
Further, the slide fastener of the present invention can be used not only as an opening/closing tool for an article but also for an article other than the opening/closing tool such as a lifting cord (e.g., a string for a cellular phone). For example, an example of a lifting rope 300 using the slide fastener of the present invention is shown in fig. 4. The lifting rope 300 is formed in the following manner: the string 300 is formed by injection molding a row of PTT fastener elements 308 along a PET core thread 314 so as to sandwich the core thread 314, folding back the core thread 314 at the center portion so that the coupling portions of the elements are on the inside, aligning both ends, and inserting an injection-molded PTT slider 304 therethrough. Further, a lower stopper 306 made of PTT by injection molding is fixed to the lower end portion by a polyester adhesive, and a loop-shaped string 310 made of PET is formed at the tip of the lower stopper 306.
Examples
Hereinafter, examples for better understanding of the present invention and advantages thereof will be described, but the present invention is not limited to these examples.
<1. evaluation of dyeing Property >
The fastener tapes made of PET resin and PTT resin having a plain weave were woven with the fibers of (1) and (2), respectively.
(1) PET zipper tape
Plant-derived PET resin fiber (Toyota Kagaku Co., Ltd.)
(2) PTT zipper tape
PTT resin fiber derived from plant (Dongli Co., Ltd.)
These woven fastener tapes were subjected to heat setting at 180 ℃ for 90 seconds, and then immersed in a high-pressure dyeing solution (disperse dye) having a temperature described in table 1, and dyed for 40 minutes. The dyeing uses 3 primary colors. The dyeing property was evaluated by using CCM (Computer Color Matching System) manufactured by KONICA MINOLTA. The dyeing temperature was 130 ℃ which is suitable for zipper dyeing, but the test was also carried out at 110 ℃ for PTT. The dyeing test was performed 5 times, and the color reproducibility was evaluated based on the 1 st color. The results are shown in Table 1. The PTT fiber absorbs the dye from low temperature, and the dyeing speed is high, so the PTT fiber has the defects of fuzzy color, obvious color unevenness and poor color reproducibility. On the other hand, the PET fiber obtains high color reproducibility.
[ Table 1]
O: CCM < delta > less than 1.2
And (delta): a CCM (delta) of more than 1.2 and less than 1.5
X: a CCM (delta) of more than 1.5
<2. evaluation of dyeing fastness >
The fastener tapes made of PET resin and PTT resin having a plain weave were woven with the fibers of (1) and (2), respectively.
(1) PET zipper tape
Plant-derived PET resin fiber
(2) PTT zipper tape
Plant-derived PTT resin fiber
These woven fastener tapes were subjected to heat setting at 180 ℃ under dry heat for 90 seconds, and then immersed in a high-pressure dyeing solution (disperse dye) having a temperature described in table 2, and dyed for 40 minutes. The staining used was black. For the dyed fastener tape, according to JIS L0879: 2005, a fastness to dyeing test was conducted. The results are shown in Table 2. When PTT fibers were used for a fastener tape, the item for polyester contamination in the dye fastness test was grade 1.5, and the quality standard could not be satisfied. However, if the PET fiber is used for the fastener tape, the discoloration and fading, cotton contamination, and polyester contamination are 3.5 or more levels when the tape is dyed at 130 ℃.
[ Table 2]
<3. evaluation of injection moldability >
Various fastener tapes having a plain weave were woven by using the fibers of the following (1) to (3) and changing the weaving density of the weft yarn to the range shown in table 3. At this time, core threads having different numbers of courses are knitted into the side edges of the fastener tapes in accordance with the test numbers.
(1) General article
Warp yarn: PET and nylon, 235 to 330dTex fineness, weaving density 42 pieces/inch (2.54cm)
Weft yarn: the material PET, fineness 330dTex, and knitting density shown in Table 3
Core rope: < core wire > Material PET, set of 5 untwisted wires
< tubular knit structure > material PET, fineness 110dTex, number of courses described in Table 3
(2) Plant-derived PET
Warp yarn: plant-derived PET resin fibers, a 2-denier 167dTex set, and a weaving density of 40 fibers/inch (2.54cm)
Weft yarn: plant-derived PET resin fibers, a set of 2 fibers having a fineness of 167dTex, and a knitting density shown in Table 3
Core rope: < core thread > set of 8 untwisted threads made of PET resin fiber derived from plant
< tubular knit structure > fibers made of a plant-derived PET resin, fineness of 167dTex, and number of courses described in Table 3
(3) Combination of plant-derived PET and nylon
Warp yarn: plant-derived PET resin fibers, a set of 2 fibers having a fineness of 167dTex, a portion of nylon 235dTex, and a weaving density of 42 fibers/inch (2.54cm)
Weft yarn: plant-derived PET resin fibers, a set of 2 fibers having a fineness of 167dTex, and a knitting density shown in Table 3
Core rope: < core wire > material: aggregate of plant-derived PET resin fibers and 8 untwisted threads
< tubular knit structure > material: plant-derived PET resin fibers, a set of 2 fibers having a fineness of 167dTex, and the number of courses described in Table 3
These woven fastener tapes were subjected to heat setting at 180 ℃ for 90 seconds, and then immersed in a high-pressure dyeing solution (disperse dye) at 130 ℃ to be dyed for 40 minutes. The PTT fastener elements were continuously injection molded along the side edges of the dyed fastener tapes with the core thread interposed therebetween, thereby producing fastener stringers. The results are shown in Table 3. It can be seen that, by optimizing the number of courses and the knitting density, a fastener tape made of only PET resin can be formed into a twill, and the fastener elements can be injection molded with high yield.
[ Table 3]
O: has no problem and can be produced
And (delta): poor core engagement (failure occurred in more than 5 shots and within 300 shots)
X: failure to produce the product due to poor engagement of the core and insufficient strength (failure occurred within 5 shots)
Based on the evaluation results of the chain transverse tensile strength test, a case of 350N or less is regarded as insufficient strength.
Claims (7)
1. A slide fastener, all the components of which are made of a polyester resin, comprising a fiber member and an injection-molded member, wherein the fiber member is made of a polyethylene terephthalate (PET) resin, the injection-molded member is made of a polyester resin other than the polyethylene terephthalate (PET) resin, and at least one of the polyethylene terephthalate (PET) resin and the polyester resin other than the polyethylene terephthalate (PET) resin is derived from a plant,
the slide fastener is provided with: a pair of fastener tapes, a pair of element rows attached to opposite side edges of the fastener tapes, and a slider for passing the element rows therethrough to control engagement and disengagement, wherein the fastener tapes are made of fibrous material, the element rows are made of injection molded material, and the slider is made of injection molded material,
the zipper tape is made of a fabric with the weaving density of 37-43 pieces/2.54 cm,
the fastener tape has a raised portion formed by knitting a core thread into opposite side edges, the fastener element row is attached to the raised portion by injection molding, the core thread has a core thread and a knit structure having a number of courses knitted so as to surround the core thread of 24 courses/25.4 mm or more,
the number of courses of the core yarn is the number of courses aligned in the transverse direction of the knitted fabric constituting the core yarn.
2. A slide fastener, all the components of which are made of a polyester resin, comprising a fiber member and an injection-molded member, wherein the fiber member is made of a polyethylene terephthalate (PET) resin, the injection-molded member is made of a polyester resin other than the polyethylene terephthalate (PET) resin, and at least one of the polyethylene terephthalate (PET) resin and the polyester resin other than the polyethylene terephthalate (PET) resin is derived from a plant,
the slide fastener is provided with: a pair of fastener tapes, a pair of element rows attached to opposite side edges of the fastener tapes, and a slider for passing the element rows therethrough to control engagement and disengagement, wherein the fastener tapes are made of fibrous material, the element rows are made of injection molded material, and the slider is made of injection molded material,
the zipper tape is made of a fabric with the weaving density of 37-39 pieces/2.54 cm,
the fastener tape has a raised portion formed by knitting a core thread into opposite side edges, the fastener element row is attached to the raised portion by injection molding, the core thread has a core thread and a knit structure having a stitch course number of 20 stitch courses/25.4 mm or more knitted so as to surround the core thread,
the number of courses of the core yarn is the number of courses aligned in the transverse direction of the knitted fabric constituting the core yarn.
3. The zipper of claim 1 or 2 wherein the injection molded parts are all comprised of a material selected from the group consisting of polytrimethylene terephthalate (PTT), polybutylene terephthalate (PBT), and combinations thereof.
4. The slide fastener according to claim 1, wherein the fastener tape is made of a woven fabric having a weft yarn weaving density of 38 to 42 threads/2.54 cm, and has a raised portion formed by knitting a core thread into opposite side edges, the fastener element row is attached to the raised portion by injection molding, and the core thread includes a core thread and a knitting structure in which the number of courses knitted so as to surround the core thread is 25 courses/25.4 mm or more.
5. The zipper of any one of claims 1, 2, 4 further provided with at least one injection molded part selected from the group consisting of an upper stop, a lower stop, and a breakaway insert.
6. The zipper of claim 3 further provided with at least one injection molded part selected from the group consisting of an upper stop, a lower stop, and a breakaway insert.
7. An article comprising the slide fastener according to any one of claims 1 to 6.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2016/060850 WO2017168731A1 (en) | 2016-03-31 | 2016-03-31 | Polyester zipper |
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| Publication Number | Publication Date |
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| CN108882780A CN108882780A (en) | 2018-11-23 |
| CN108882780B true CN108882780B (en) | 2021-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201680084159.3A Active CN108882780B (en) | 2016-03-31 | 2016-03-31 | Polyester zipper |
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| Country | Link |
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| CN (1) | CN108882780B (en) |
| TW (1) | TWI620523B (en) |
| WO (1) | WO2017168731A1 (en) |
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|---|---|---|---|---|
| CN109438929B (en) * | 2018-11-01 | 2021-05-25 | 驰马拉链（安徽）有限公司 | Production process of injection molded zipper |
| JP7161616B2 (en) | 2019-06-24 | 2022-10-26 | Ykk株式会社 | FASTENER TAPE, IDENTIFICATION METHOD THEREOF, MANUFACTURING METHOD THEREOF, AND SET OF SLIDE FASTENER |
| WO2022091416A1 (en) * | 2020-11-02 | 2022-05-05 | Ykk株式会社 | Fastener tape woven using threads including plant-derived resin, fastener stringer, and manufacturing method therefor |
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|---|---|---|---|---|
| CN1192875A (en) * | 1997-03-05 | 1998-09-16 | Ykk株式会社 | Fastener made of synthesized resin |
| CN1385124A (en) * | 2001-05-16 | 2002-12-18 | 东洋纺织株式会社 | Zipper |
| JP2003225102A (en) * | 2001-11-30 | 2003-08-12 | Asahi Kasei Corp | Slide fastener component |
| JP2008125799A (en) * | 2006-11-21 | 2008-06-05 | Fuji Tokushu Shigyo Kk | Method for manufacturing zipper tape and its apparatus |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITTV20060092A1 (en) * | 2006-05-31 | 2007-12-01 | Luca Toncelli | PROCEDURE FOR THE MANUFACTURE OF MANUFACTURED ARTICLES IN GRANULATE CONGLOMERATE OF STONE MATERIAL AND POLYESTER RESIN IN THE FORM OF SHEETS OR BLOCKS. |
| CN101754994A (en) * | 2007-05-17 | 2010-06-23 | 帝人株式会社 | Method for production of polycarbonate containing plant-derived component |
| JP5604037B2 (en) * | 2008-08-06 | 2014-10-08 | 日東電工株式会社 | Polyester, polyester composition, pressure-sensitive adhesive composition, pressure-sensitive adhesive layer and pressure-sensitive adhesive sheet |
| CN102906158A (en) * | 2010-05-19 | 2013-01-30 | 三菱瓦斯化学株式会社 | Polyester amide compound |
| IT1401318B1 (en) * | 2010-08-06 | 2013-07-18 | Novamont Spa | POLYPHASIC BIODEGRADABLE COMPOSITIONS CONTAINING AT LEAST A NATURAL ORIGIN POLYMER |
| EP2881435B1 (en) * | 2012-08-03 | 2017-01-25 | Kaneka Corporation | Polyester resin composition and molded body containing this resin composition |
| WO2014175169A1 (en) * | 2013-04-23 | 2014-10-30 | 三菱瓦斯化学株式会社 | Polyamide resin composition, and molded article |
| JP6143861B2 (en) * | 2013-06-07 | 2017-06-07 | Ykk株式会社 | Industrial material fastener tape and slide fastener comprising the same |
-
2016
- 2016-03-31 CN CN201680084159.3A patent/CN108882780B/en active Active
- 2016-03-31 WO PCT/JP2016/060850 patent/WO2017168731A1/en active Application Filing
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1192875A (en) * | 1997-03-05 | 1998-09-16 | Ykk株式会社 | Fastener made of synthesized resin |
| CN1385124A (en) * | 2001-05-16 | 2002-12-18 | 东洋纺织株式会社 | Zipper |
| JP2003225102A (en) * | 2001-11-30 | 2003-08-12 | Asahi Kasei Corp | Slide fastener component |
| JP2008125799A (en) * | 2006-11-21 | 2008-06-05 | Fuji Tokushu Shigyo Kk | Method for manufacturing zipper tape and its apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108882780A (en) | 2018-11-23 |
| TWI620523B (en) | 2018-04-11 |
| TW201735823A (en) | 2017-10-16 |
| WO2017168731A1 (en) | 2017-10-05 |
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