Tissue tape for invisible zipper and invisible zipper

Abstract

The utility model discloses a tissue tape for an invisible zipper and the invisible zipper, and relates to the technical field of invisible zippers, the tissue tape comprises a sewing part and a main body part, the sewing part is formed by weaving a plurality of warps and a plurality of wefts, the sewing part is connected with the main body part, the warps in the sewing part are integrally formed single cylindrical filaments, the warps in the main body part are polyester monofilaments, and the wefts in the main body part are polyester monofilaments. The polyester monofilaments are formed by twisting a plurality of fibers, the diameter and hardness of the warps in the sewing part are larger than those of the warps in the main body part, the thickness of the sewing part is 1.5-2 times that of the main body part, and the teeth of the invisible zipper are sewn on the sewing part through sewing threads. The rigid / supporting performance of the invisible woven belt is enhanced by means of adding reinforcing parts without adding or increasing dipping glue and the like, and the integrally-formed yarns thicker than the main body part are woven into the tooth sewing part, so that the purposes that the sewing part is thicker than the main body part, is relatively harder, has rigidity and has softness of the woven belt are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of invisible zippers, and particularly relates to a tissue belt for invisible zippers and an invisible zipper. BACKGROUND

[0002] Zippers are divided into three categories of nylon zippers, resin (plastic steel) zippers and metal zippers according to the materials of the teeth, and are roughly divided into the common type of zippers that can be exposed and invisible zippers that are not exposed according to the exposure degree of the engaged teeth on the surface side of the cloth belt. Invisible zippers are suitable for various summer clothes, bags, shoes and other products due to their concealment and non-interference with the products. In recent years, they have also been used for seat covers of seats in cars and trains.

[0003] In the patent with the publication number CN102481040B, a zipper strip for invisible zippers is disclosed, wherein the zipper cloth belt has a cloth belt main body part, a cloth belt bending part bent into a U-shaped type, and a tooth mounting part for sewing the zipper teeth. In addition, the zipper cloth belt also has a tube bag fabric part containing an inner film body, and a face line passing area for passing the face line arranged on the cloth belt bending part side of the sewing line. In the disclosed patent document, the rigidity of the tube bag fabric part can be improved by adding an additional film body, but the process is relatively complex. If the film body breaks or disconnects, it cannot be discovered or observed in time, and after disconnection, the effect of the chain belt is deteriorated. At the same time, the disclosed patent document uses the method of impregnating the cloth belt at the chain tooth sewing part, so that the whole is relatively hard, only rigid and lacks elasticity (after pulling, it is difficult to reset after pulling the left and right chain belts away from each other), and it is difficult for the sewing needle to penetrate during sewing.

[0004] Therefore, in view of the above technical problems, how to provide a tissue belt with low process difficulty and both rigidity and softness is a technical problem that needs to be solved by those skilled in the art. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the present application is to provide a tissue belt for invisible zippers and an invisible zipper, which avoids the method of adding or increasing impregnation and other methods of adding reinforcing parts to enhance the rigidity and support performance of the invisible cloth belt. The relatively thicker yarns of the main body part are woven into the tooth sewing part to achieve the purpose of the sewing part being thicker than the main body part, relatively harder, having rigidity and having the softness of the cloth belt.

[0006] To achieve the above object, the application provides a tissue tape for invisible zipper, comprising a sewing part and a main part which are woven by a plurality of warp threads and a plurality of weft threads, the sewing part is connected with the main part, the warp threads in the sewing part are integrally formed cylindrical filaments, the warp threads in the main part are polyester monofilaments, the polyester monofilaments are formed by twisting a plurality of fibers, the diameter and hardness of the warp threads in the sewing part are greater than those of the warp threads in the main part, the thickness of the sewing part is 1.5-2 times of that of the main part, and the teeth of the invisible zipper are sewn on the sewing part by sewing thread.

[0007] Preferably, the sewing part is double-layered.

[0008] The warp threads and the weft threads in the sewing part are arranged according to one over three and three over one.

[0009] Preferably, the main part is single-layered.

[0010] The warp threads and the weft threads in the main part are woven according to two over two.

[0011] Preferably, the width of the sewing part accounts for 25%-40% of the width of the tissue tape, and the width of the main part accounts for 60%-75% of the width of the tissue tape.

[0012] Preferably, the sewing part formed by weaving the warp threads and the weft threads presents horizontal lines in appearance, and the main part formed by weaving the warp threads and the weft threads presents diagonal lines in appearance.

[0013] Preferably, the tissue tape has a curved part with a curved structure which is extended from one side of the main part to the width direction of the tape, and the curved part is further extended to serve as a tooth mounting part for sewing the teeth.

[0014] A tissue tape for invisible zipper, comprising a sewing part and a main part which are woven by a plurality of warp threads and a plurality of weft threads, the sewing part is connected with the main part, the warp threads in the sewing part are composed of integrally formed single cylindrical filaments and polyester monofilaments formed by twisting a plurality of fibers, the warp threads in the main part are composed of polyester monofilaments formed by twisting a plurality of fibers, the diameter and hardness of the integrally formed single cylindrical filaments are greater than those of the polyester monofilaments, the thickness of the sewing part is 1.5-2 times of that of the main part, and the teeth of the invisible zipper are sewn on the sewing part by sewing thread.

[0015] An invisible zipper comprising the above-mentioned tissue tape for invisible zipper.

[0016] With respect to the above background art, the warp of the sewing portion of the present application is a smooth round filament formed integrally, has better rigidity / hardness and better smoothness relative to the structure of a conventional twisted single yarn, and the thickness of the sewing portion is 1.5-2 times higher than that of the main portion, which can provide better support for the invisible zipper and make it remain undeformed under the action of a larger external force. In addition, because of the smooth and round characteristics of the sewing portion, the combination of the formed chain tape and the puller is provided with better smoothness. The organizational tape of the present application can achieve more effects by using conventional tape weaving process, and the process operation is simpler, without the need for additional steps including precise positioning requirements of the film sheet. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only a part of the embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0018] Figure 1 The weaving schematic diagram of the organizational tape for invisible zipper provided by the embodiment of the present application;

[0019] Figure 2 The fabric organization diagram of the organizational tape for invisible zipper provided by the embodiment of the present application;

[0020] Figure 3 The thickness cross-sectional view of the sewing portion and the main portion provided by the embodiment of the present application;

[0021] Figure 4 The sewing edge schematic diagram of the sewing portion provided by the embodiment of the present application;

[0022] Figure 5 The appearance schematic diagram of the organizational tape for invisible zipper provided by the embodiment of the present application.

[0023] In the figure: 1-sewing portion; 2-main portion; 3-weft; 4-warp. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] It should be noted that in the present embodiment, the directions or positional relationships indicated by "upper", "lower", "front", "rear" and the like are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application in indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, "first", "second", "third", "fourth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0026] In order for those skilled in the art to better understand the present application, the present application will be further described in detail below in conjunction with the drawings and specific embodiments.

[0027] As shown in Figure 1 and Figure 2 In the present embodiment, a tissue tape for invisible zipper is provided, comprising a sewing part 1 and a main part 2 woven by a plurality of warp threads 4 and a plurality of weft threads 3, wherein the warp threads 4 in the sewing part 1 and the main part 2 are configured as two different structures of warp threads 4, and the weft threads 3 in the sewing part 1 can be the same as or different from the warp threads 4, which is not limited here.

[0028] The sewing part 1 and the main part 2 can be connected by the weft threads 3, and the warp threads 4 in the sewing part 1 are single smooth cylindrical filaments formed by one-piece molding, so that the sewing part 1 has the structural feature of smooth and round; the warp threads 4 in the main part 2 are non-smooth polyester filaments, and the overall appearance of the polyester filaments is non-smooth cylindrical filaments, specifically, the polyester filaments are formed by high-speed spinning and high-speed stretching and twisting technology of a plurality of PET fibers, so that due to the difference in process, the diameter and hardness of the warp threads 4 in the sewing part 1 are larger than those of the warp threads 4 in the main part 2, and the warp threads 4 in the sewing part 1 are smoother.

[0029] In addition, please refer to Figure 3 The thickness of the sewing part 1 is about 1.5-2 times the thickness of the main part 2, which can provide better support for the invisible zipper and keep it from deforming under the action of a larger external force. The width of the sewing part 1 accounts for 25%-40% of the width of the tissue tape, and the width of the main part 2 accounts for 60%-75% of the width of the tissue tape.

[0030] In another embodiment, the warp threads 4 in the sewing part 1 can be composed of a single cylindrical filament formed by one-piece molding and a polyester filament formed by twisting a plurality of fibers, and the warp threads 4 in the main part 2 can be composed of a single polyester filament formed by twisting a plurality of fibers, and the diameter and hardness of the single cylindrical filament formed by one-piece molding are greater than those of the polyester filament, so that the sewing part 1 still has the appearance feature of smooth and round, and has better rigidity / hardness than the structure of the conventional twisted single polyester filament.

[0031] In summary of the above embodiments, the warp 4 of the stitching part 1 of the present application is a smooth round filament integrally formed, which has better rigidity / hardness and better smoothness than the structure of the conventional twisted monofilament, and the thickness of the stitching part 1 is 1.5-2 times higher than the thickness of the main part 2, which can provide better support for the invisible zipper and make it not deformed under the action of a larger external force. In addition, because of the smooth and round characteristics of the stitching part 1, it provides better smoothness for the combination of the well-formed chain belt and the puller. The organizational belt of the present application can achieve more effects by using the conventional cloth belt weaving process, which is simpler in process operation and does not need additional steps including precise positioning requirements of the film sheet.

[0032] In some embodiments, the stitching part 1 is made into a double-layer configuration by the organizational process, and the main part 2 is made into a single-layer configuration, so as to achieve the purpose that the thickness of the stitching part 1 is higher than that of the main part 2. Please refer to Figure 3 .

[0033] Please refer to Figure 1 and Figure 2 , the warp 4 and the weft 3 in the stitching part 1 are arranged according to the organizational inter-row of three on top and one on bottom, and three on top and one on bottom, which forms a floating line on the front and back of the organizational belt and forms a hollow core at the edge of the organizational belt to layer and fix the warp 4, and from the side, it is a layered structure of several layers of warp 4 wrapped by the floating line arranged in the form of fish scales on the outside. The weft 3 is wound on the warp 4 at intervals, which can be specifically referred to Figure 4 .

[0034] The warp 4 and the weft 3 in the main part 2 are woven according to two on top and two on bottom, which can be specifically referred to Figure 1 and Figure 2 . The main part 2 has a certain thickness to ensure that the zipper strip will not be scattered when stretched by an external force.

[0035] On the basis of the above embodiments, please refer to Figure 5 , the stitching part 1 formed by weaving the warp 4 and the weft 3 presents a horizontal line in appearance, and the main part 2 formed by weaving the warp 4 and the weft 3 presents a regular diagonal line in appearance; of course, the above lines are only preferred solutions, and there can be other more solutions, which all fall within the protection scope of the present application.

[0036] Here, taking the seat cover of a car seat as an example, the organizational belt of the invisible zipper of the present application can be sewn on the back side of the seat cover of the car seat. The warp 4 of the stitching part 1 of the organizational belt adopts 42 filaments with a diameter of 0.15 mm, and the warp 4 of the main part 2 adopts 36 300D polyester DTY (polyester low elastic filament). The invisible zipper is installed on the seat cover by sewing the main part 2 of the organizational belt with the surface material of the seat cover with a sewing line.

[0037] The tissue tape is a basic structure, having a suture part 1 and a main part 2, which are woven by two different warp threads 4. The suture part 1 is used for the suture needle to penetrate and the tooth and the tissue tape are combined and fixed by the suture thread. The main part 2 of the tissue tape extends along the width direction of the tape and is bent into a U shape. The tooth mounting part for sewing the tooth is further extended from the bent part. The suture part 1 of the tissue tape is woven by the warp thread 4 with smooth and round structure, and the thickness of the suture part 1 is 1.5-2 times higher than that of the main part 2. The suture part 1 can provide better support for the invisible zipper and keep it from deforming under the action of a large external force. In addition, the smooth and round structure of the suture part 1 provides better smoothness for the combination of the formed chain tape and the puller, and the puller slides more smoothly in the suture part 1.

[0038] The raw materials of the suture part 1 and the main part 2 of the present application can be consistent, for example, PET (polyester resin) is preferred and can also have elasticity (automatic reset after being pulled away) and softness.

[0039] The present application also provides an invisible zipper, which comprises the above-mentioned tissue tape for invisible zipper.

[0040] It should be noted that in the present specification, the relationship terms such as first and second are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between the entities.

[0041] The principles and implementation modes of the present application are described by using specific examples in the present specification, and the above description of the examples is only used to help understand the method of the present application and its core idea. It should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A tissue strip for an invisible zipper, characterized in that, It includes a sewn part (1) and a main body (2) woven from several warp threads (4) and several weft threads (3). The sewn part (1) is connected to the main body (2). The warp threads (4) in the sewn part (1) are single cylindrical filaments formed in one piece. The warp threads (4) in the main body (2) are polyester monofilaments. The polyester monofilaments are formed by twisting multiple fibers. The diameter and hardness of the warp threads (4) in the sewn part (1) are greater than those of the warp threads (4) in the main body (2). The thickness of the sewn part (1) is 1.5-2 times that of the main body (2). The teeth of the invisible zipper are sewn onto the sewn part (1) by stitching.

2. The tissue strip for invisible zippers according to claim 1, characterized in that, The suture section (1) is configured in two layers.

3. The tissue strip for the invisible zipper according to claim 2, characterized in that, The warp threads (4) and weft threads (3) in the suture section (1) are arranged in a one-up-three-down or three-up-one-down interstitial pattern.

4. The tissue strip for the invisible zipper according to claim 1, characterized in that, The main body (2) is a single-layer configuration.

5. The tissue strip for the invisible zipper according to claim 4, characterized in that, The warp (4) and weft (3) in the main body (2) are woven in a two-up, two-down pattern.

6. The tissue strip for an invisible zipper according to claim 1, characterized in that, The width of the suture portion (1) accounts for 25%-40% of the width of the tissue band, and the width of the main body portion (2) accounts for 60%-75% of the width of the tissue band.

7. The tissue strip for an invisible zipper according to claim 1, characterized in that, The seam (1) formed by the warp (4) and the weft (3) has horizontal stripes in appearance, and the main body (2) formed by the warp (4) and the weft (3) has diagonal stripes in appearance.

8. The tissue strip for an invisible zipper according to claim 1, characterized in that, The tissue band extends in the width direction of the main body (2) on one side and extends to form a curved part with a curved structure. The curved part further extends to form a tooth mounting part for sewing the teeth.

9. A tissue strip for an invisible zipper, characterized in that, It includes a sewn part (1) and a main body (2) woven from several warp threads (4) and several weft threads (3). The sewn part (1) is connected to the main body (2). The warp threads (4) in the sewn part (1) are composed of a single cylindrical filament formed by one piece and a polyester monofilament formed by twisting multiple fibers. The warp threads (4) in the main body (2) are composed of a single polyester monofilament formed by twisting multiple fibers. The diameter and hardness of the single cylindrical filament formed by one piece are greater than those of the polyester monofilament. The thickness of the sewn part (1) is 1.5-2 times that of the main body (2). The teeth of the invisible zipper are sewn onto the sewn part (1) by stitching.

10. An invisible zipper, characterized in that, Including the tissue strip for invisible zippers as described in any one of claims 1-9.

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