Zipper tape and zippers

Abstract

To provide a fastener tape which can weave warp threads in a sewing area to a longer length, is formed in a slight wave shape, the amount of shrinkage caused by sewing is just offset by the allowance of the wave shape, the wave shape of the fastener tape after sewing is reduced, the fastener tape and a fabric are completely adhered to each other, and the smoothness of the fastener tape is effectively increased, thereby improving the aesthetic appearance of the fastener tape. [Solution] The fastener tape includes an attachment region 1 for attaching an element, an exposed region 2 whose adjacent edge to the attachment region is formed integrally, and a sewn region 3 whose adjacent edge to the exposed region is formed integrally and which uses a 3-over-3-under weft rib weave, and the exposed region includes at least three combination regions 201-204 arranged sequentially in the width direction of the fastener tape, and one of the combination regions uses a 2-over-2-under weft rib weave.

Description

[Technical Field]

[0001] The present invention relates to the field of fastener technology, and more particularly to fastener tapes and fasteners. [Background technology]

[0002] As the clothing market gradually shows a trend toward lighter weight, the requirements for the process of zipper tapes used in lightweight and thin fabrics, such as lightweight and thin down jackets, skinwear, sunscreen clothing, etc., are also increasing. The prior art discloses a zipper tape that uses a plain weave in the sewing area to prevent misalignment of warp and weft threads, increase the rigidity of the zipper tape, and effectively prevent wrinkles from occurring in the fabric after the zipper is sewn to the fabric.

[0003] However, because the stitching area of ​​the above-mentioned zipper tape has a large proportion of plain weave, after the zipper tape is sewn to the fabric, some of the wavy stitching area is still exposed, and the zipper tape is not flat, which affects the aesthetics.In addition, the zipper tape is relatively thick and stiff overall, which is more suitable for thick fabrics and does not suit the trend of lightweight and thin fabrics that is popular in the market.For this reason, zipper tapes and zippers have been proposed to solve the above problems. Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention aims to provide a zipper tape and a zipper that solves the technical problem that the proportion of plain weave in the sewing area of ​​conventional zipper tapes is high, and after the zipper tape is sewn to the fabric, the wavy shape of the sewing area is still partially exposed, making the zipper tape uneven and affecting the aesthetic appearance. [Means for solving the problem]

[0005] In order to achieve the above-mentioned object, the present invention provides: In a fastener tape formed by knitting warp and weft yarns, a mounting area for mounting the element; an exposed area having an adjacent side integrally formed with the attachment area; A sewing area in which the adjacent side to the exposed area is integrally formed and which adopts a 3-upper 3-lower weft rib weave; a fabric edge region having an adjacent side integrally formed with the sewing region; Including, The exposed region includes at least three combination regions arranged sequentially in the width direction of the fastener tape; One of the combination regions adopts a 2-over 2-under weft rib weave; Any two adjacent combination regions among the three combination regions have different knitting structures; The combination region adjacent to the sewn region in the exposed region and the sewn region have different knitting structure configurations, The fastener tape is provided such that the combination region adjacent to the attachment region in the exposed region and the attachment region have different knitting structures.

[0006] Preferably, the exposed region includes a first combination region, a second combination region, a third combination region, and a fourth combination region arranged sequentially along the width direction of the fastener tape, the first combination region being adjacent to the attachment region, and any two adjacent combination regions among the first combination region, the second combination region, the third combination region, and the fourth combination region have different knitting structure configurations.

[0007] Preferably, the first combination area adopts a 1-over-1-under plain weave, the second combination area and the fourth combination area adopt a 2-over-2-under warp rib weave, respectively, and the third combination area adopts a 2-over-2-under weft rib weave.

[0008] Preferably, the proportion of the exposed area in the width direction of the fastener tape is 18% to 25%, and the proportion of the sewn area in the width direction of the fastener tape is 27% to 38%.

[0009] Preferably, the diameter of the warp yarns is equal to or less than the diameter of the weft yarns.

[0010] Preferably, the fabric edge region adopts a 2-over-2-under warp broken twill weave and / or a 2-over-2-under twill weave, and the ratio of the stitched region to the fabric edge region is between 3:1.5 and 3:2.5.

[0011] Preferably, the attachment region employs a two-over-two-under warp broken twill weave.

[0012] Preferably, the attachment region adopts a two-over-two-under warp rib weave, and the width of the attachment region is 2 to 4 mm.

[0013] Preferably, the fastener tape has an adhesive layer on the bottom thereof.

[0014] A fastener comprising the fastener tape according to any one of the above. [Effects of the Invention]

[0015] In view of the above background art, the present invention provides a fastener tape, which has the following beneficial effects: 1. In this invention, the sewing area uses a three-over-three-under weft rib weave, which increases the number of floating wefts to three, thereby improving the weft ductility of the zipper tape and making the wefts in the sewing area more sparsely arranged, which is more convenient for the needles to insert and take-out. Furthermore, the weft rib weave is based on a plain weave and spreads in the weft direction, with the warp threads interlacing every other thread, allowing for the maximum bending rate to be achieved, i.e., the bending rigidity of the warp threads to be high. At the same time, the tension of the warp threads in the sewing area is controlled to be lower than that of the warp threads in other areas, allowing the warp threads in the sewing area to be woven to a longer length, resulting in a slight wave shape. The amount of shrinkage during sewing is just offset by the wave margin, which reduces the wave shape of the zipper tape after sewing, ensures complete adhesion between the zipper tape and the fabric, and makes the exposed area and the fabric flatter, solving the problem of arched stitching and effectively increasing the smoothness of the zipper tape, thereby improving the aesthetics of the zipper tape. 2. In this invention, one of the combination areas in the exposed area adopts a two-over-two-under weft rib weave. The weft rib weave extends in the weft direction based on the plain weave, and the floating weft creates fine horizontal stripes on the surface of the fabric, which effectively improves the elasticity and softness of the zipper tape in the horizontal direction. The entire exposed area remains flat, minimizing the impact on the sewing process, thereby better matching the zipper tape with the lightweight, thin fabric.

[0016] In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings necessary for explaining the embodiments or the prior art. Obviously, the drawings in the following description are only embodiments of the present invention, and those skilled in the art can obtain other drawings from the provided drawings on the premise that they do not involve any inventive step. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a schematic plan view of a zipper provided by an embodiment of the present invention; [Figure 2] 1 is a partial schematic view of a zipper tape according to an embodiment of the present invention; [Figure 3]1 is a schematic diagram of a partial structure of a sewing area provided by an embodiment of the present invention; [Figure 4] FIG. 4 is a schematic cross-sectional view taken along line AA in FIG. 3. [Figure 5] FIG. 4 is a schematic vertical cross-sectional view taken along line BB in FIG. 3. [Figure 6] 1 is a schematic diagram of a sewing procedure for a sewing area provided by an embodiment of the present invention; [Figure 7] 1 is a schematic diagram of a partial structure of an attachment area provided by an embodiment of the present invention; [Figure 8] 4 is a partial structural schematic diagram of the attachment area provided by another embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0018] The following clearly and completely describes the technical solutions in the embodiments of the present invention, combined with the drawings in the embodiments of the present invention, and it is clear that the described embodiments are not all embodiments but only some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without any inventive effort are within the scope of protection of the present invention.

[0019] In order to enable those skilled in the art to better understand the solution of the present invention, the following will further describe the present invention in detail in combination with drawings and specific embodiments.

[0020] Figure 1 is a schematic plan view of a zipper provided by an embodiment of the present invention, Figure 2 is a partial schematic view of a zipper tape provided by an embodiment of the present invention, Figure 3 is a partial structural schematic view of a sewing area 3 provided by an embodiment of the present invention, Figure 4 is a schematic cross-sectional view taken along line AA in Figure 3, Figure 5 is a schematic longitudinal cross-sectional view taken along line BB in Figure 3, Figure 5 is a partial structural schematic view of an attachment area 1 provided by an embodiment of the present invention, Figure 6 is a schematic view of the sewing procedure for sewing area 3 provided by an embodiment of the present invention, Figure 7 is a partial structural schematic view of an attachment area 1 provided by an embodiment of the present invention, and Figure 8 is a partial structural schematic view of an attachment area 1 provided by another embodiment of the present invention.

[0021] 1 and 2, to achieve the above-mentioned object, the present invention provides a fastener tape including an attachment area 1, an exposed area 2, a sewing area 3, and a fabric edge area 4, which are sequentially arranged along the width direction of the fastener tape, which is the X direction in FIG. 1, wherein the attachment area 1 is for attaching an element 7, and adjacent edges of the exposed area 2 and the attachment area 1 are integrally formed; the sewing area 3 is for sewing the fabric, and adjacent edges of the sewing area 3 and the exposed area 2 are integrally formed; and adjacent edges of the fabric edge area 4 and the sewing area 3 are integrally formed.

[0022] 3, 4 and 5, the outer surface of the stitching area 3 has vertical convex stripes, which makes it possible to clearly identify this area as a stitching area. The stitching area 3 employs a 3-over-3-under weft rib weave, which increases the number of floating wefts to three, thereby improving the ductility of the zipper tape in the weft direction and making the wefts 6 in the stitching area 3 more sparsely arranged, which is more advantageous for the insertion and removal of sewing needles. Furthermore, the weft rib weave is based on a plain weave and extends in the weft direction, with the warp threads 5 interlacing every other thread, achieving the maximum bending rate, i.e., the bending rigidity of the warp threads 5 is high. At the same time, the stitching area By controlling the tension of the warp threads 5 in the sewn region 3 to be lower than that of the warp threads 5 in other regions, the warp threads 5 in the sewn region 3 can be woven to a longer length, forming a slight wave shape, and the amount of stitching shrinkage is just offset by the wave allowance, reducing the wave shape of the zipper tape after sewing, ensuring complete adhesion between the zipper tape and the fabric, making the exposed region 2 and the fabric flatter, solving the problem of arched stitching, effectively improving the smoothness of the zipper tape, and improving the aesthetic appearance of the zipper tape. Specifically, refer to Figure 6, where L is a schematic diagram of the state of the zipper tape before sewing, where the sewn region 3 is formed with a slight wave shape, M is a schematic diagram of the state of the zipper tape during sewing, where the needle entry point 9 of the sewing thread is in a convex position, and N is a schematic diagram of the state of the zipper tape after sewing, where the zipper tape in the sewn region 3 is flat after sewing.

[0023] It should be noted that the exposed area 2 comprises three combination areas arranged sequentially across the width of the zipper tape, one of which employs a two-over-two-under weft rib weave. The weft rib weave extends in the weft direction on the basis of plain weave, and the floating weft creates fine horizontal stripes on the surface of the fabric, effectively improving the elasticity and softness of the zipper tape in the lateral direction. The entire exposed area 2 remains flat, minimizing the impact on the sewing process, thereby enabling the zipper tape to be better matched with lightweight, thin fabrics.

[0024] It should be further noted that any two adjacent combination areas among the three combination areas have different knitting structures, and the combination area adjacent to the sewing area 3 in the exposed area 2 and the sewing area 3 have different knitting structures, and the combination area adjacent to the attachment area 1 in the exposed area 2 and the attachment area 1 have different knitting structures, so that the fastener tape has designs with different knitting structures at different positions in the width direction, which can improve the smoothness and softness of the exposed part of the fastener tape after sewing.

[0025] In one embodiment of the present invention, the exposed region 2 sequentially combines a first combined region 201, a second combined region 202, a third combined region 203, and a fourth combined region 204. The first combined region 201 is adjacent to the attachment region 1, and adjacent two of the first combined region 201, the second combined region 202, the third combined region 203, and the fourth combined region 204 have different knitting structures. Specifically, the first combined region 201 employs a 1-over-1-under plain weave. Because the first combined region 201 is adjacent to the attachment region 1, the warp and weft yarns of the 1-over-1-under plain weave are interwoven every other yarn, resulting in more frequent interwoven yarns and maximum bending. This ensures the strength of the first combined region 201 and effectively reduces the lateral displacement of the warp yarns 5 in the attachment region 1, thereby minimizing the impact on the zipper tape during sewing. The second and fourth combination regions 202 and 204 each use a 2-over-2-under warp rib weave, which reduces the number of warp and weft bends compared to a 1-over-1-under weave and reduces stress concentration, improving the wrinkle resistance and smoothness of the zipper tape while also creating fine vertical stripes on the warp rib weave, creating a more visually appealing effect than a plain weave. The third combination region 203 uses a 2-over-2-under weft rib weave, which expands the weft rib weave weftwise based on the plain weave. The floating weft creates fine horizontal stripes on the fabric surface, effectively improving the zipper tape's transverse elasticity and softness. The entire exposed region 2 remains flat, minimizing impact during sewing.

[0026] It should be noted that the width dimension of the exposed area 2 is between 3 and 5 mm, and optionally the width dimension of the exposed area 2 can be designed to be 3 mm, 4 mm and 5 mm according to actual needs, the main purpose of which is to keep flat and minimize the impact of sewing.

[0027] It should be further noted that the proportion of the exposed area 2 in the width direction of the fastener tape is 18% to 25%, and the proportion of the sewn area 3 in the width direction of the fastener tape is 27% to 38%. Of course, the dimensions of the exposed area 2 and the sewn area 3 in the specific direction need to be adaptively adjusted according to the overall width of the fastener tape. By adjusting the proportion of the sewn area 3 in the fastener tape, the sewn area 3 can be covered by fabric and the exposed area 2 can be made flatter.

[0028] In some embodiments of the present invention, the edge region 4 of the fabric is weaved with a 2-over-2-under warp torn twill weave and / or a 2-over-2-under twill weave. That is, the edge region 4 may be weaved with a 2-over-2-under warp torn twill weave alone, a 2-over-2-under twill weave alone, or a combination of a 2-over-2-under warp torn twill weave and a 2-over-2-under twill weave. This reduces the density of the warp yarns 5, making the edge region 4 lighter and thinner, and improving the softness of the edge region 4. At the same time, the ratio of the zipper tape sewing region 3 to the edge region 4 of the fabric can be precisely controlled to be between 3:1.5 and 3:2.5. Optionally, the ratio of the zipper tape sewing region 3 to the edge region 4 of the fabric can be set to 3:2, which maximizes the flexibility of the zipper tape while meeting the required width for sewing, thereby enabling the zipper tape to better fit the lightweight and thin fabric.

[0029] In some embodiments of the present invention, both the weft yarn 6 and the warp yarn 5 are made of polyester yarn material, and the specifications of the warp yarn 5 are equal to or less than the specifications of the weft yarn 6. Optionally, the specifications of the weft yarn 6 are 300D, and the specifications of the warp yarn 5 are equal to or less than 300D. By adjusting the diameter ratio and specifications of the weft yarn 6, the softness of the zipper tape can be improved while ensuring the rigidity of the zipper tape, and the thickness of the zipper tape can be more suitable for lightweight and thin fabrics.

[0030] In some embodiments of the present invention, the attachment area 1 of a nylon zipper employs a two-over-two-under warp break twill weave. See Figure 7, which shows a two-over-two-under warp break twill weave. Within the area shown in Figure 7, four warp or weft weave points can be formed simultaneously, ensuring close contact while maximizing the number of continuous warp and weft weave points. This is advantageous when sewing by inserting a sewing needle into the element 7.

[0031] In some embodiments of the present invention, for plastic steel fasteners and metal fasteners, the attachment area 1 adopts a 2-over-2-under warp rib weave. See Fig. 8. The 2-over-2-under warp rib weave pattern increases the density of the warp yarns 5 and arranges them closely together, effectively increasing the rigidity of the tape attachment area 1 and enhancing the physical strength of the tape. It should be noted that the width of the attachment area 1 is 2-4 mm to ensure that the fastener tape can stably attach the element 7.

[0032] Optionally, an adhesive layer 8 can be provided at the bottom of the fastener tape. Providing an adhesive layer 8 at the bottom of the fastener tape significantly improves the durability of the fastener tape, preventing breakage during use and extending its lifespan. Furthermore, the adhesive layer 8 can be made of either a scrub adhesive or a fabric adhesive, which can be selected flexibly as needed. If the adhesive layer 8 is a scrub adhesive, its surface treatment creates a scrub effect, ensuring the aesthetics and texture of the fastener tape. If the adhesive layer 8 is a fabric adhesive, the fabric adhesive can be used as a fabric substrate, ensuring the breathability and toughness of the fastener tape.

[0033] In addition to the above-mentioned fastener tape, the present invention provides a fastener including the fastener tape disclosed in the above-mentioned embodiment. The configuration of each of the other parts of this fastener can be referred to in the prior art, so no detailed description will be given here.

[0034] It should be explained that relational terms such as "first" and "second" used herein are merely used to distinguish one entity from other entities and do not necessarily require or imply any actual relationship or order between these entities.

[0035] In this paper, the principles and embodiments of the present invention are described by applying specific examples, and the description of the above examples is only to help understand the method and core idea of ​​the present invention. It should be noted that those skilled in the art may make some improvements and modifications to the present invention without departing from the principle of the present invention, and these improvements and modifications shall also fall within the scope of protection of the present invention. [Explanation of symbols]

[0036] 1. Mounting area 2...Exposed area 201...First combination region 202...Second combination region 203...Third Combinatorial Region 204...Fourth Combinatorial Region 3...Sewing area 4. Fabric edge area 5. Warp 6. Weft 7. Elements 8...Adhesive layer 9. Sewing thread needle point

Claims

1. In a fastener tape formed by knitting warp and weft yarns, a mounting area for mounting the element; an exposed area having an adjacent side integrally formed with the attachment area; a sewing area in which the adjacent side to the exposed area is integrally formed and which employs a 3-upper 3-lower weft rib weave; a fabric edge region having an adjacent side integrally formed with the sewing region; Including, The exposed region includes at least three combination regions arranged sequentially in the width direction of the fastener tape; One of the combined regions adopts a 2-over 2-under weft rib weave; Any two adjacent combination regions among the three combination regions have different knitting structures; The combination region adjacent to the sewn region in the exposed region and the sewn region have different knitting structure configurations, The fastener tape according to claim 1, wherein the combination region adjacent to the attachment region in the exposed region and the attachment region have different knitting structures.

2. 2. The fastener tape according to claim 1, wherein the exposed region includes a first combination region, a second combination region, a third combination region, and a fourth combination region arranged sequentially along the width direction of the fastener tape, the first combination region being adjacent to the attachment region, and adjacent two combination regions among the first combination region, the second combination region, the third combination region, and the fourth combination region have different knitting structure configurations.

3. The fastener tape according to claim 2, characterized in that the first combination region adopts a 1-over-1-under plain weave, the second combination region and the fourth combination region each adopt a 2-over-2-under warp rib weave, and the third combination region adopts a 2-over-2-under weft rib weave.

4. The fastener tape according to claim 1, characterized in that a ratio of a dimension of the exposed area in the width direction of the fastener tape is 18% to 25%, and a ratio of a dimension of the sewn area in the width direction of the fastener tape is 27% to 38%.

5. The fastener tape according to claim 4, wherein the diameter of the warp yarns is equal to or smaller than the diameter of the weft yarns.

6. The fastener tape according to claim 1, wherein the fabric edge region adopts a 2-over-2-under warp broken twill weave and / or a 2-over-2-under twill weave, and the ratio of the stitching region to the fabric edge region is between 3:1.5 and 3:2.

5.

7. The fastener tape according to any one of claims 1 to 6, wherein the attachment region employs a two-upper, two-lower warp broken twill weave.

8. The fastener tape according to any one of claims 1 to 6, wherein the attachment region adopts a two-over-two-under warp rib weave, and the width of the attachment region is 2 to 4 mm.

9. 7. The fastener tape according to claim 1, wherein an adhesive layer is provided on the bottom of the fastener tape.

10. A fastener comprising the fastener tape according to any one of claims 1 to 6.

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