TWI731887B - Zipper with anti-seepage function - Google Patents

Abstract

A zipper with anti-seepage function, which includes a pair of supporting tapes, each of which has a first surface and a second surface arranged oppositely, and a central gap is formed between the pair of supporting tapes; a pair of continuous The fastening elements are arranged opposite to the inner edges of the second surfaces of the pair of supporting tapes, each of the continuous fastening elements forms an inner cavity inside, and the outside has an upper layer and a lower layer oppositely arranged; And an impermeable elastic gel, which is filled in the central gap, in the longitudinal gaps of the pair of continuous fastening elements adjacent to each other, and in each of the inner cavities of the pair of continuous fastening elements, so that the pair of continuous fastening elements At least a part of the upper layers of the fastening element is covered by the impermeable elastic gel; and the impermeable elastic gel is longitudinally divided at the central slit position to form a notch so that the zipper has an opening and closing function.

Description

Zipper with anti-seepage function

This case is about a kind of zipper, especially a kind of zipper with impermeable function.

Since zippers are used for different items, the occasions are different. Clothing and equipment used in outdoor sports must be waterproof, such as snow jackets, windbreakers, raincoats, tents, and even skiing or travel equipment.

In fact, the most prone to water penetration of the zipper is tied to a central slit of a pair of support tapes, which is also the most difficult problem to overcome. For example, the inventors of this case have domestic patent publications No. I374714 and I395555 (corresponding to US 8,397,353 B2, 8,484,810 B2 and 8,689,408 B2 patent cases), although these patent cases have disclosed a polymer elastomer filling A central slit of a pair of supporting tapes of a zipper and an adjacent slit between the pair of continuous fastening elements in a pair of fastening elements to overcome the water seepage problem caused by lateral force.

However, the aforementioned polymer elastomer only fills the adjacent vertical (longitudinal) gaps between the pair of continuous fastening elements, and does not penetrate into the inner cavity of the pair of continuous fastening elements laterally, so that the pair of continuous fastening elements is closed. The covering of the element is not complete, so there is still a gap between the polymer elastomer and the upper layer of the pair of continuous fastening elements, so that liquid can easily penetrate through the gap, and the polymer elastic body is likely to loosen during use. And fall off, thus weakening the function of water seepage prevention.

As shown in Figure 1, it is a longitudinal cross-sectional view of the impermeable structure of the turn type continuous zipper. An impermeable elastic gel 5 is stuffed in a central slit of a support tape 1 and adjacent to each other in the continuous fastening element 2 There is a longitudinal (vertical) gap 22, but the impermeable elastic gel 5 does not penetrate and fill in each of the inner cavities 21 of the pair of continuous fastening elements 2. Therefore, the impermeable elastic gel 5 fails to cover the upper layer 2a of the pair of continuous fastening elements 2 in a full circle, so that liquid easily penetrates from the upper layer 2a and the inner cavity 21 of the pair of continuous fastening elements 2 . Furthermore, because the impermeable elastic gel 5 fails to wrap the upper layer 2a of the continuous fastening element 2 in a full circle, there is no anchoring effect, thereby reducing the elasticity of the elastic gel 5 and the continuous fastening elements 2 Due to the fastness of the combination, when in use, the combination of the anti-seepage elastic gel 5 and each of the continuous fastening elements 2 is easy to loosen, the lighter liquid is easy to seep from the inner cavity 21, and the expected anti-seepage function cannot be achieved; serious; Moreover, the anti-seepage elastic gel 5 and the pair of continuous fastening elements 2 fall off due to looseness, which needs to be improved urgently.

The main purpose of this case is to provide a zipper with impermeable function, which is penetrated by an impermeable elastic gel and filled laterally in the cavities through the pair of continuous fastening elements, so that the impermeable elastic gel can be wrapped Covering an upper layer of the pair of continuous fastening elements can improve the anti-seepage function of the zipper, and at the same time can prevent the problem that the anti-seepage elastic gel is easily detached from the pair of continuous fastening elements during use.

In order to achieve the aforementioned purpose, the technical method adopted in this case is to provide a zipper with anti-seepage function, which includes a pair of parallel supporting tapes, each of which has a first side and a second side arranged oppositely. And a central gap is formed between the pair of supporting tapes; a pair of continuous buckling elements are arranged opposite to the inner edges of the second surfaces of the pair of supporting tapes or the first surfaces that are in a reflexed shape The inner edge of each continuous fastening element forms an inner cavity, and the outer has an upper layer and a lower layer oppositely arranged; and an impermeable elastic colloid, which is filled in the central gap, and the pair of continuous In the longitudinal gaps adjacent to each other in the fastening element and in each of the inner cavities of the pair of continuous fastening elements, at least a part of the upper layers of the pair of continuous fastening elements are circled by the impermeable elastic gel Wrap; and longitudinally split the impermeable elastic gel at the central slit position to form a cut, so that the zipper has an opening and closing function.

Another technical method adopted in this case is to provide a zipper with anti-seepage function, which includes a pair of parallel-arranged support tapes, each of which has a first side and a second side oppositely arranged; a pair of continuous Fastening elements are respectively clamped on the inner side edge of the first surface and the inner side edge of the second surface of each of the supporting tapes, each of the continuous fastening elements forms an inner cavity inside, and the outside has an opposite direction An upper layer and a lower layer are provided; the pair of upper layers of the pair of continuous fastening elements each cover a first webbing, so that a central gap is formed between the pair of support fabrics and the pair of first webbing; and an impermeable The elastic gel is filled in the central gap, the longitudinal gaps adjacent to each other in the pair of continuous fastening elements, and each of the inner cavities of the pair of continuous fastening elements, so that the pair of continuous fastening elements At least a part of the upper layer is covered by the impermeable elastic gel in a full circle; and the impermeable elastic gel is longitudinally divided at the central slit position to form a notch so that the zipper has an opening and closing function.

As shown in Figure 2, it reveals the first embodiment of the zipper with impermeable function in this case. The zipper includes a pair of supporting tapes 1 arranged in parallel, and the pair of supporting tapes 1 is made of woven or knitted warp knitting Wherein a central gap 11 is formed between the pair of support tapes 1, and the pair of support tapes 1 each has a first surface 1a and a second surface 1b that are opposed to each other, the pair of support tapes 1 A pair of continuous fastening elements 2 are arranged opposite to the inner edge of the second surface 1b, such as coiled fastening elements. The pair of continuous fastening elements 2 are sewn or woven, the former is called Sewing zipper, the latter is called woven zipper, for example, the pair of continuous fastening elements 2 are connected to the inner sides of the second surfaces 1b of the pair of supporting tapes 1 by at least one fixed thread 3 or by a weaving manner of warp and weft yarns. edge. Each of the continuous fastening elements 2 forms an inner cavity 21 inside, and has an upper layer 2a and a lower layer 2b arranged oppositely on the outside. If necessary, a core wire 4 can be arranged in the inner cavity 21 of each continuous fastening element 2 to increase the strength and stability of the zipper.

When the first embodiment is implemented, the zipper will be made of an elastic polymer material, such as, but not limited to, thermoplastic polyurethane elastomer and polyurethane through a glue filling process in the buckled state. An impermeable elastic colloid 5 made of polyurethane elastomer or thermoplastic polyester elastomer is injected from the central slit 11, so that the impermeable elastic colloid 5 is filled in the central slit 11 And the longitudinal (vertical) gap 22 adjacent to each other in the pair of continuous fastening elements 2 and further penetrate into each of the inner cavities 21 of the pair of continuous fastening elements 2 to make the pair of continuous fastening elements At least a part of the upper layer 2a of 2 is completely wrapped by the impermeable elastic gel 5 to prevent liquid from infiltrating through the surface of the upper layer 2a of the pair of continuous fastening elements 2. Finally, the impermeable elastic rubber body 5 is longitudinally divided at the position of the central slit 11 to form a cutout 51, so that the zipper has an opening and closing function.

Fig. 3 shows another direction (longitudinal) cross-sectional view of the zipper shown in Fig. 2. As mentioned above, the impermeable elastic gel 5 is filled in the central slit 11 and the pair of continuous fastening elements 2 each other. The adjacent longitudinal gap 22 further penetrates the inner cavities 21 of the pair of continuous fastening elements 2 so that the impermeable elastic gel 5 can wrap the entire circle of the pair of continuous fastening elements 2 At least a part of the upper layer 2a. The benefits of this move are as follows:

(1) Improve the anti-seepage function of the zipper, so that the central slit 11 can resist at least 50mm high water pressure due to the arrangement of the anti-seepage elastic gel 5;

(2) The impermeable elastic gel 5 forms a connection in each of the inner cavities 21 of the pair of continuous fastening elements 2 to prevent the impermeable elastic gel 5 from falling off the pair of continuous fastening elements 2; and

(3) Because the impermeable elastic gel 5 covers the upper layer 2a of the pair of fastening elements 2 and produces an anchoring effect, thereby increasing the binding force of the impermeable elastic gel 5 and the pair of continuous fastening elements 2 , So it can greatly extend the use time of the zipper anti-seepage function.

As shown in Figure 4, it discloses the second embodiment of the zipper in this case. Compared with the first embodiment, the same reference numerals (symbols) are used to denote the same components in this second embodiment. An embodiment shares many common components, so only the differences between the two are described in detail later.

The pair of continuous fastening elements 2 adopt lapped fastening elements, and the pair of continuous fastening elements 2 are sewn, for example, with at least one fixing thread 3, the pair of continuous fastening elements 2 are respectively coupled to the inner edges of the second surfaces 1b of the pair of supporting tapes 1. If necessary, the core wire 4 can be arranged in the inner cavity 21 of each continuous fastening element 2 to increase the strength and stability of the zipper.

When the second embodiment is implemented, the zipper is in the buckled state, the impermeable elastic gel 5 is injected from the central slit 11 through the aforementioned glue filling process, so that the impermeable elastic gel 5 is filled in the central slit 11 and In the longitudinal gap 22 of the pair of continuous fastening elements 2 adjacent to each other, and further penetrate into each of the inner cavities 21 of the pair of continuous fastening elements 2 transversely, so that the upper layer of the pair of continuous fastening elements 2 At least a part of 2a is covered by the anti-seepage elastic gel 5 in a full circle to prevent liquid from infiltrating through the surface of the upper layer 2a of the pair of continuous fastening elements 2. Finally, the impermeable elastic rubber body 5 is divided longitudinally at the position of the central slit 11 to form the cutout 51, so that the zipper has an opening and closing function.

As shown in Figure 5, it discloses the third embodiment of the zipper in this case. Compared with the first embodiment, the same reference numerals (symbols) are used to denote the same components in this third embodiment. An embodiment shares many common components, so only the differences between the two are described in detail later.

The third embodiment is an invisible zipper, so the pair of continuous fastening elements 2, for example, the same loop-type continuous fastening elements as in the first embodiment are oppositely arranged on the pair of supporting tapes 1 The first side 1a is a reverse-folded inner side edge. The at least one fixing thread 3 of the pair of continuous fastening elements 2 and its sewing needle holes are hidden in the second sides 1b of the pair of supporting tapes 1 The inner side edge can prevent water seepage from the sewing needle holes of the pair of supporting tapes 1. Wherein, the pair of continuous buckling elements 2 is not limited to the aforementioned turn-type continuous buckling element, and it may also use the foldable continuous buckling element shown in the second embodiment.

When the third embodiment is implemented, the zipper is in the snapped state, the impermeable elastic gel 5 made of elastic polymer material is injected from the central slit 11 through the aforementioned glue filling process, so that the impermeable elastic gel 5 is filled In the central slit 11 and the longitudinal gap 22 adjacent to each other in the pair of continuous fastening elements 2, and further penetrate into each of the inner cavities 21 of the pair of continuous fastening elements 2, so that the pair of continuous fastening elements 2 At least a part of the upper layer 2a of the fastening element 2 is completely wrapped by the impermeable elastic gel 5 to prevent liquid from infiltrating through the surface of the upper layer 2a of the pair of continuous fastening elements 2. Finally, the impermeable elastic rubber body 5 is divided longitudinally at the position of the central slit 11 to form the cutout 51, so that the zipper has an opening and closing function.

Please refer to FIGS. 2 to 5 again. As mentioned above, the impermeable elastic gel 5 is integrally formed in the central slit 11, in the longitudinal gap 22 adjacent to each other in the pair of continuous fastening elements 2, and the pair In each of the inner cavities 21 of the continuous fastening element 2, the impermeable elastic gel 5 completely covers the upper layer 2a of the pair of continuous fastening elements 2 and generates an anchor function to prevent the impermeable elastic gel 5 Fall off from the zipper when in use.

In addition, in order to avoid friction between the impermeable elastic gel 5 and a zipper head, the impermeable elastic gel 5 must be constrained in the central gap 11 by the pair of support tapes 1, and the height of the impermeable elastic gel 5 is lower than The pair of supporting the first surfaces 1a of the tape 1.

In addition, in the first to third embodiments, at least one warp yarn at the innermost edge of the pair of supporting tapes 1 is thicker than the other warp yarns to produce a river bank-like function to prevent the anti-seepage elastic gel 5 from overflowing. The central slit 11 adheres to the first surfaces 1a of the pair of supporting tapes 1, thereby affecting the appearance of the zipper. Therefore, in practice, the at least one warp yarn on the innermost edge of the pair of support tapes 1 must be thicker. If the conventional support tape is woven with 150de (Danny) or 300de yarn, the pair of The thickness of the at least one warp that supports the innermost edge of the tape 1 is preferably 450 de or more. Furthermore, the chain-stitch tissue edge of the pair of support tape 1 can be used as the inner edge, or the inner side of the pair of support tape 1 can be changed to a relatively thicker tissue, which will help increase the impermeable elastic colloid. 5. The thickness in the central slit 11 and make the edge of the impermeable elastic gel 5 in the central slit 11 straighter, which can increase the anti-seepage function and increase the beauty.

Furthermore, each of the pair of continuous fastening elements 2 is connected to the inner edge of the pair of supporting tapes 1 by a double fixing line 3, and the lower layers 2b of the pair of continuous fastening elements form a chain-like shape. Double chain. If the lower layer 2b of each of the continuous fastening elements 2 is provided with a groove (not shown), the fixing line 3 can be accommodated, so as to reduce the friction between the fixing line 3 and the zipper head, thereby increasing the The durability of the zipper.

In addition, the core thread 4 may be a yarn containing polar nylon fibers to increase the adhesion between the impermeable elastic gel 5 and the core thread 4. Similarly, the appropriate positions of the pair of support tapes 1, such as the innermost edge of the pair of support tapes 1, or the reflexed surface of the pair of support tapes 1, are equipped with polar nylon fibers, which can improve the impermeable elastic gel. 5. The fastness of combination with the pair of supporting tapes 1, thereby enhancing the anti-seepage function and durability.

In particular, the zippers shown in the first to third embodiments can be processed by water repellent processing to make the pair of support tapes 1 have a water repellent function; or the pair of support tapes 1 may be tied with water-repellent fibers It is woven with yarn to eliminate the waste water produced by water repellent processing; or the pair of support cloth belts 1 are made of ultra-dense webbing woven with less than 1 denier fiber and heat shrinkable fiber, and water repellent processing, To improve the overall anti-seepage function of the zipper.

As shown in Figure 6, it discloses the fourth embodiment of the zipper in this case. Compared with the first embodiment, the same reference numerals (symbols) are used to denote the same components in this fourth embodiment. An embodiment shares many common components, so only the differences between the two are described in detail later.

The pair of continuous buckle elements 2 are clip-type continuous buckle elements, and then the pair of continuous buckle elements 2 are clamped on the inner side edges of the pair of continuous buckle elements 2, and the pair of continuous buckle elements 2 Each of the fastening elements 2 has an inner cavity 21; then, an upper layer 2a and a lower layer 2b of each of the continuous fastening elements 2 are covered with a first webbing 6a and a second webbing 6b, and then the pair of continuous buckles The fastening element 2 is sewn, for example, with at least one fixing thread 3, the upper layers 2a and the lower layers 2b of the pair of continuous fastening elements 2 are respectively combined with the pair of supporting tapes 1 and the pair of first webbing 6a And the inner edge between the pair of support tapes 1 and the pair of second woven tapes 6b, so that the pair of support tapes 1, the pair of first woven tapes 6a, and the pair of second woven tapes 6b are formed together A central slit 11.

When the fourth embodiment is implemented, the zipper is in the buckled state, and an impermeable elastic gel 5 made of elastic polymer material is injected from the top or bottom of the central slit 11 through the aforementioned glue filling process to make the impermeable elastic The glue 5 is filled in the central gap 11 and the longitudinal gap 22 of the pair of continuous fastening elements 2 adjacent to each other, and further penetrates laterally into each of the cavities 21 of the pair of continuous fastening elements 2 to make the The upper layers 2a and the lower layers 2b of the continuous fastening element 2 are covered by the impermeable elastic gel 5 to prevent liquid from passing through the upper layers 2a and the lower layers 2b of the pair of continuous fastening elements 2 The surface penetrates and can prevent the anti-seepage elastic gel 5 from falling off the zipper. Finally, the impermeable elastic rubber body 5 is divided longitudinally at the position of the central slit 11 to form the cutout 51, so that the zipper has an opening and closing function.

The fourth embodiment adopts the pair of clip-type continuous buckling elements 2, which are respectively arranged on the inner edge of the first surface 1a and the inner edge of the second surface 1b of each of the supporting tapes 1, and utilize each The square structure of the continuous fastening element 2 and the sewing fixing method can prevent the problem of the at least one fixing line 3 of each continuous fastening element 2 from sliding to the outside. Therefore, the fourth embodiment can improve the expansion problem of the central slit 11 caused by the lateral external force, thereby improving the anti-seepage function of the zipper.

In addition, the at least one warp yarn on the innermost edge of the first webbing 6a and the second webbing 6b is thicker than the other warp yarns, or the knitting structure of the innermost edge is relatively thick, which can prevent the impermeable elastic gel 5 from overflowing to the first webbing. The surface of a webbing 6a and the second webbing 6b.

Furthermore, the inner edges of the pair of support tape 1, the pair of first webbing 6a, and the pair of second webbing 6b, for example, at least one warp yarn is made of nylon, and the polarity of the nylon material can be used to improve the impermeable high elastic colloid 5 Adhesion to the pair of supporting tape 1, the pair of first webbing 6a and the pair of second webbing 6b.

In practice, the adhesive force of the pair of supporting tape 1, the pair of continuous fastening elements 2 and the impermeable elastic gel 5 affects the anti-seepage function of the zipper most greatly. Therefore, if the material of the impermeable elastic gel 5 is In the case of polyurethane elastic gel, the pair of supporting tape 1, the core wire 4, and the pair of continuous fastening elements 2 that are in contact with the impermeable elastic gel 5 can be selected from a polar nylon (polyamide) material. The adhesion between the impermeable elastic gel 5 and the polyester is better than that of polyester, so the adhesion between the impermeable elastic gel 5 and the zipper can be improved to avoid the poor adhesion between the impermeable elastic gel 5 and the zipper. The problem of shedding or even loss of anti-seepage function occurs. If the continuous fastening element 2 is made of nylon material, it can be treated with a release agent first, and then the impermeable elastic gel 5 is injected to facilitate division.

As shown in FIG. 7, it shows another modified embodiment of the first embodiment. In fact, the pair of support tapes 1 processed by water repellent treatment basically has no anti-water pressure function, if the pair of support tapes 1 To achieve the water pressure resistance function, at least one of the first surfaces 1a or the second surfaces 1b of the pair of supporting tapes 1 must be covered, for example, a waterproof layer 9 is coated or laminated. The waterproof layer 9 covers the first surfaces 1a and/or the second surfaces 1b of the pair of supporting tapes 1 and the impermeable elastic gel 5 at the position of the central slit 11, and is located at the position of the central slit 11 Split the impermeable elastic rubber 5 and the waterproof layer 9 longitudinally to form the cut 51, so that the zipper has an opening and closing function. Through the foregoing implementation, the zipper including the pair of supporting tapes 1 can reach a water column height of more than 50mm The anti-seepage function.

When the waterproof layer 9 is implemented, it is selected from polyurethane (PU), thermoplastic polyurethane (TPU), or a laminate of polyurethane and thermoplastic polyurethane, etc., But not limited to this. The thermoplastic polyurethane is selected from the group consisting of moisture-bridged polyurethane hot-melt adhesives (moisture reactive hot-melt polyurethane), thermally reactive polyurethane hot-melt adhesives (reactive hot-melt polyurethane) or water-based polyurethane hot-melt adhesives ( water-base hot melt polyurethane) etc., but not limited to this.

Basically, the waterproof layer 9 can be a high-temperature hot-melt adhesive coating layer with a melting point above 150°C, such as nylon or polyester in the plasma, the first surfaces of the pair of supporting tapes 1 1a Coated polyurethane (PU) elastomer, because both are polar substances, it can adhere firmly; or the waterproof layer 9 includes a waterproof film 91 and a bonding layer 92, the total thickness of which is generally 0.2 Below mm, a part of the adhesive layer 92 will penetrate into the tissue of the pair of supporting tapes 1 after being attached to produce an anchoring effect, and the other part will serve as a bonding layer with the waterproof membrane 91. Among them, the waterproof film 91 must be made of impermeable material, such as selected from polyether polyurethane film (ether base PU film), polyester polyurethane film (ester base PU film), nylon film (nylon film) or polyester film ( PET film) etc., the thickness of the waterproof film 91 is preferably about 0.1 mm or less. The adhesive layer 92 is selected from moisture curing polyurethane hot melt adhesive, water-based polyurethane hot melt adhesive, closed polyurethane hot melt adhesive, or polyurethane adhesive.

As shown in FIG. 8, which shows another modified embodiment of the fourth embodiment, at least one of the first surfaces 1a or the second surfaces 1b of the pair of supporting tapes 1 and the pair of first webbing A waterproof layer 9 is coated or laminated on the surface of at least one pair of webbings 6a or the pair of second webbings 6b. The waterproof layer 9 coats and covers the first surfaces 1a of the pair of supporting tapes 1, the pair of first webbing 6a, and the impermeable elastic gel 5 in the central slit 11, and is positioned at the central slit 11 The anti-seepage elastic gel 5 and the waterproof layer 9 are divided longitudinally to form the cut 51.

The pair of supporting tapes 1 and the pair of first woven tapes 6a can be made of a polar nylon material to improve the adhesion between the waterproof layer 9 and the zipper. If the pair of continuous fastening elements 2 are both made of nylon, they can be treated with a release agent first, and then the impermeable elastic gel 5 can be injected to facilitate division.

At least one longitudinal groove 93 is provided on the surface of the waterproof layer 9 covering the upper layers 2a of the pair of continuous fastening elements 2 and the pair of first webbing 6a, and the at least one longitudinal groove 93 can reduce the waterproof layer 9 The contact area with the zipper head can effectively reduce friction and improve the smoothness of the zipper opening and closing.

When necessary, the pair of support tapes of the foregoing embodiment are designed by weaving method or material, and the part outside the pair of continuous buckling elements is a knitted warp-knitted tape with elasticity in the warp direction, or in the warp and weft directions. The knitted warp-knitted cloth tape with stretchable elasticity enables the zipper to be bent in a plane, but this is a conventional technology, for example, disclosed in the US Patent Publication No. 6,494,236 owned by the applicant, and will not be repeated here.

Therefore, through the implementation of this case, the benefits gained by it can be calculated as follows:

(1) In this case, the impermeable elastic gel is filled in the central slit of the pair of supporting tapes, in the adjacent longitudinal gaps of the pair of continuous fastening elements, and further penetrates the pair of continuous fastening elements In each cavity of the element, the anti-seepage function of the zipper can be effectively improved, and the problem that the anti-seepage elastic gel is easy to loose or fall off during use can be prevented, so as to prolong the service life of the anti-seepage function.

(2) In this case, the pair of supporting tapes have a longitudinal elastic function, so that the zipper has a flat bending and anti-seepage function at the same time.

(3) In this case, the pair of supporting tapes can be woven from fiber yarn with water repellent function to improve the anti-seepage function of the zipper, but does not cause the production of wastewater from water repellent processing, and has an environmental protection effect.

(4) In this case, the pair of supporting tapes can be woven from super-dense fabrics, and has a water-repellent effect, thereby improving the anti-seepage function of the zipper.

(5) In this case, the waterproof layer can be covered and attached to the pair of supporting tapes and the central gap, and separated longitudinally at the central gap, so as to improve the anti-seepage function of the zipper.

(6) In this case, by arranging polar nylon fibers on the pair of support tapes, the adhesion between the polyurethane impermeable elastic gel and the pair of support tapes can be improved, thereby improving the impermeability and durability.

The disclosure in this case is one of the preferred embodiments. Any partial changes or modifications that are derived from the technical ideas of the case and can be easily inferred by those who are familiar with the art do not deviate from the scope of the patent right of the case.

1‧‧‧Support tape 1a‧‧‧First side 1b‧‧‧Second side 11‧‧‧Central gap 2‧‧‧Continuous fastening element 2a‧‧‧Upper floor 2b‧‧‧Lower 21‧‧‧Inner cavity 22‧‧‧Longitudinal gap 3‧‧‧Fixed line 4‧‧‧Core wire 5‧‧‧Impermeable elastic colloid 51‧‧‧Cut 6a‧‧‧First webbing 6b‧‧‧Second webbing 9‧‧‧Waterproof layer 91‧‧‧Waterproof membrane 92‧‧‧Next layer 93‧‧‧Longitudinal groove

In order to further reveal the specific technical content of this case, please first refer to the drawings, in which: Figure 1 is a longitudinal sectional view of the anti-seepage structure of a conventional loop type continuous zipper; Figure 2 is the first embodiment of a zipper with anti-seepage function in this case Fig. 3 is a cross-sectional view of the zipper with anti-seepage function shown in Fig. 2 in another direction; Fig. 4 is a cross-sectional view of the second embodiment of the zipper with anti-seepage function; Fig. 5 is the case with anti-seepage function The cross-sectional view of the third embodiment of the zipper; Figure 6 is a cross-sectional view of the fourth embodiment of the zipper with the anti-seepage function; Figure 7 is the cross-sectional view of the zipper with the anti-seepage function and the waterproof layer shown in Figure 2; and 8 is a cross-sectional view of the zipper with anti-seepage function combined with the waterproof layer shown in Figure 6.

1‧‧‧Support tape

1a‧‧‧First side

1b‧‧‧Second side

11‧‧‧Central gap

2‧‧‧Continuous fastening element

2a‧‧‧Upper floor

2b‧‧‧Lower

21‧‧‧Inner cavity

22‧‧‧Longitudinal gap

3‧‧‧Fixed line

4‧‧‧Core wire

5‧‧‧Impermeable elastic colloid

51‧‧‧Cut

Claims (22)

A zipper with anti-seepage function, comprising: a pair of parallel supporting tapes, each having a first surface and a second surface oppositely arranged, and a central gap is formed between the pair of supporting tapes; A pair of continuous fastening elements, which are disposed on the inner edges of the second surfaces of the pair of supporting tapes or the inner edges of the first surfaces in a reversed shape, and each of the continuous fastening elements has a The inner cavity, and the outer part has an upper layer and a lower layer opposed to each other; and an impermeable elastic gel, which is filled in the central gap, in the longitudinal gaps adjacent to each other in the pair of continuous fastening elements, and the pair In each of the inner cavities of the continuous fastening element, at least a part of the upper layers of the pair of continuous fastening elements are covered by the impermeable elastic gel in a full circle; and the impermeable part is longitudinally divided at the central gap position Elastic colloid to form a notch so that the zipper has the function of opening and closing. A zipper with anti-seepage function, comprising: a pair of parallel-arranged support tapes, each having a first surface and a second surface arranged oppositely; a pair of continuous fastening elements, each of which is sandwiched between The inner side edge of the first surface and the inner side edge of the second surface of each of the supporting tapes, each of the continuous fastening elements has an inner cavity inside, and an upper layer and a lower layer oppositely arranged on the outside; Each of the upper layers of the continuous fastening element is covered with a first webbing, so that a central gap is formed between the pair of supporting cloth belts and the pair of first webbing; and an impermeable elastic gel, which is filled in the central gap Inside, in the longitudinal gaps of the pair of continuous fastening elements adjacent to each other, and in each of the inner cavities of the pair of continuous fastening elements, so that at least a part of the upper layers of the pair of continuous fastening elements are covered by the The impermeable elastic gel is wrapped in a whole circle; and the impermeable elastic gel is longitudinally divided at the central gap position to form a notch so that the zipper has an opening and closing function. The zipper with anti-seepage function as described in item 1 of the scope of patent application, wherein the continuous fastening element is selected from a loop type continuous fastening element or a foldable continuous fastening element. The zipper with impermeable function as described in item 1 of the scope of patent application, wherein the height of the impermeable elastic gel is lower than the first surfaces of the pair of supporting tapes. The zipper with impermeable function as described in item 2 of the scope of patent application, wherein the height of the impermeable elastic gel is lower than the surface of the pair of first webbing. The zipper with impermeable function as described in item 2 of the scope of patent application, wherein the pair of lower layers of the pair of continuous fastening elements are respectively covered with a second webbing, so that the pair of supporting webbing, the pair of first webbing and A central slit is formed between the pair of second webbings, and the upper layer and the lower layer of the pair of continuous fastening elements are covered by the impermeable elastic rubber in a full circle; and the central slit is longitudinally divided at the central slit. Infiltrate elastic gel to form the incision. The zipper with impermeable function as described in item 6 of the scope of patent application, wherein the height of the impermeable elastic gel is lower than the surface of the pair of first webbing and the pair of second webbing. The zipper with impermeable function as described in item 1 or 2 of the scope of patent application, wherein the impermeable elastic glue system is selected from thermoplastic polyurethane elastomer, polyurethane elastomer, and thermoplastic polyester Elastomer. The zipper with impermeable function as described in item 1 of the scope of patent application, wherein at least one warp yarn at the innermost edge of the pair of supporting tapes is thicker than the other warp yarns to prevent the impermeable elastic gel from overflowing to the pair of supporting tapes The first side of these. The zipper with impermeable function as described in item 2 of the scope of patent application, wherein at least one warp yarn at the innermost edge of the pair of first webbing is thicker than the other warp yarns to prevent the impermeable elastic gel from overflowing on the surface of the first webbing . The zipper with impermeable function as described in item 6 of the scope of patent application, wherein at least one warp of the innermost edge of the pair of first webbing and the pair of second webbing is thicker than the other warps to prevent the impermeable elastic colloid from overflowing To the surface of the second webbing. The zipper with impermeable function as described in item 1 of the scope of patent application, wherein at least one of the first or second surfaces of the pair of supporting tapes is coated or laminated with a waterproof layer. The zipper with anti-seepage function as described in item 6 of the scope of patent application, wherein at least one of the first or second surfaces of the pair of supporting tapes and the pair of first webbing or the pair of second The outer surface of at least one pair of webbings in the webbing is coated or laminated with a waterproof layer. For example, the zipper with impermeable function described in item 1 or 2 of the scope of patent application, wherein the pair of support tapes are treated with water repellent processing, or the pair of support tapes are super dense fabrics with water repellent processing, or the pair The support tape is woven by water-repellent fiber yarn. For example, the zipper with anti-seepage function described in item 1 of the scope of patent application further includes a waterproof layer provided on the first surfaces and/or the second surfaces of the pair of supporting tapes and the The impermeable elastic colloid of the central slit is divided longitudinally at the position of the central slit to form the cut. The zipper with impermeable function as described in item 12 or 13 of the scope of patent application, wherein the waterproof layer is selected from polyurethane, thermoplastic polyurethane or polyurethane and thermoplastic polyurethane Formate buildup. The zipper with impermeable function as described in item 16 of the scope of patent application, wherein the thermoplastic polyurethane is selected from moisture-crosslinked polyurethane hot melt adhesive, heat-reactive polyurethane adhesive or water-based polyurethane thermal Melt glue. The zipper with impermeable function as described in item 1 or 2 of the scope of the patent application, wherein the pair of supporting tapes are knitted warp-knitted tapes with stretchable elasticity in the warp direction except for the pair of continuous fastening elements; or The pair of supporting fabric tapes are knitted warp knitted fabric tapes with stretchable elasticity in the warp and weft directions except for the pair of continuous fastening elements. For example, the zipper with anti-seepage function described in item 2 of the scope of patent application further includes a waterproof layer that coats and covers the first surfaces of the pair of support tapes, the pair of first webbing and The impermeable elastic colloid in the central slit is longitudinally divided at the central slit position to form the cut. The zipper with impermeable function as described in item 19 of the scope of patent application, wherein the upper layers covering the pair of continuous fastening elements and the surface of the waterproof layer of the pair of first webbing are provided with at least one longitudinal groove. The zipper with impermeable function as described in item 19 of the scope of patent application, wherein the pair of supporting tapes and the pair of first webbing are made of nylon or polyester with plasma in order to improve the polyurethane Adhesion of the prepared waterproof layer to the pair of supporting tapes and the first webbing. The zipper with impermeable function as described in any one of items 9 to 11 in the scope of patent application, wherein the at least one warp yarn on the innermost edge is made of nylon.

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