Anti-seepage zipper, method for making anti-seepage zipper, and product having anti-seepage zipper

Abstract

The present disclosure provides a leak-proof zipper, a method for manufacturing a leak-proof zipper, and a product having a leak-proof zipper. In the leak-proof zipper, a covering joint body is provided in a central gap between a pair of support tapes. The covering joint body includes a first covering body having a covering layer and a second covering body having a covering layer. When the leak-proof zipper is in a closed state, the first covering body and the second covering body can elastically abut against each other and undergo tight deformation, so that the central gap has the function of preventing fluid, such as liquid, from leaking under high pressure, for example, a static fluid pressure of 30 gf / cm<supgt;2< / supgt; or more in height.

Description

Technical Field

[0001] The present invention relates to a zipper, and more particularly to an anti-seepage zipper with an anti-seepage function. The present invention further relates to a method for making the anti-seepage zipper, and a product having the anti-seepage zipper. Background Art

[0002] Zippers are very common in people's daily lives and can be regarded as an indispensable opening and closing device. Due to the convenience of opening and closing and the wide range of uses, zippers are still widely used in clothing, such as clothes or pants, carrying devices, such as bags or backpacks, camping equipment, such as tents, sleeping bags, and other products.

[0003] In fact, in order to achieve the functions of windproof and waterproof, the aforementioned products have already paid attention to waterproofness in the selection of materials. For example, the outer fabric of the snow suit is made of nylon or water-repellent, and even a waterproof lining is added to obtain the waterproof function.

[0004] The zipper as an opening and closing device has a defect in the waterproof function. Although the pair of supporting cloth tapes of the zipper has a waterproof layer so that the fluid cannot penetrate through the pair of supporting cloth tapes, each of the supporting cloth tapes is combined with a plurality of fastening elements arranged in a row by non-rigid combination such as sewing or weaving, and a central gap is formed in the pair of supporting cloth tapes. When in use, the central gap will inevitably be stretched open by the external lateral tension and leak water. Therefore, even if the waterproof layer is provided, it is necessary to perform a water splashing treatment on the other side of the pair of supporting cloth tapes (i.e., the opposite side of the waterproof layer) to make it have a water-proof function, as shown in, for example, U.S. Patents Nos. 4,888,859, 6,105,214, and 6,427,294. Therefore, the central gap is the most difficult part to overcome when leakage occurs in existing waterproof zippers.

[0005] Based on the common defects of the aforementioned waterproof zipper, relevant technical personnel have improved the overall structure of the zipper to enable it to have the function of preventing fluid from penetrating, especially preventing fluid from penetrating from the central gap.

[0006] As shown in U.S. Patent Nos. 8,484,810 and 8,689,408, the patents disclose that a polymer elastic extension is filled in the central gap, the polymer elastic extension is bonded to an inner edge of each supporting cloth tape and fills the gap between the fastening elements to form a solid continuum, and the polymer elastic extension is used to prevent the fluid from penetrating through the central gap, and has a solid and non-displaceable function and has a long-term anti-seepage effect.

[0007] The polymer elastic extension body can indeed block most of the central gap with a width of about 1.50mm to 2.50mm, but after the polymer elastic extension body is divided, a dividing seam with a width of about 0.05mm to 0.10mm will still be generated, and the dividing seam still cannot prevent the penetration of water molecules (because the diameter of water molecules is about 1nm or less), so fluids, such as water, will still slowly penetrate through the dividing seam of the polymer elastic extension body. Among them, the US patent case No. 8484810 also discloses a waterproof film protruding from the polymer elastic extension body, but the protruding waterproof film can only cover the dividing seam and still cannot prevent the penetration of fine water molecules from the dividing seam.

[0008] For example, Chinese patent publication No. CN 109330117 discloses a waterproof zipper, which discloses that a bend portion of each of the two waterproof layers can be pressed together to close the gap between the two zipper tapes (i.e., the aforementioned central gap). Since the gap is shallow and wide, in fact, the effective depth of the gap is equal to the thickness of the zipper tape, which is about 0.35 mm to 0.60 mm; without any component to stabilize the two zipper tapes, the gap between the two zipper tapes can be easily expanded by external force, for example, more than 1.80 mm, especially the inner edges of the two zipper tapes, wherein the inner edges refer to the inner side edges of each zipper tape to the suture line, and the inner edges are free to move like the bend portion, so the bend portion is difficult to stand firmly in the shallow and wide gap, and the pair of soft zipper tapes do not have the rigidity to clamp the bend portion, and this soft structure will make the bend portion very easy to separate from the gap between the two zipper tapes, so that the gap cannot be closed and the expected waterproof function cannot be achieved.

[0009] Furthermore, the aforementioned patent case also discloses that a filling block is disposed between each adjacent chain tooth of each zipper tape, and the filling block is formed by a waterproof layer extending downward. Figure 1 and Figure 2 As shown, there is a gap between the filling block below the waterproof layer and each zipper tape. This method has the same disadvantages as the aforementioned embodiment. Since the filling block is not connected to the inner edge of each zipper tape, it is impossible to increase the rigidity of the zipper tape and fix the mobility of each inner edge. As a result, the pair of zipper tapes still cannot generate sufficient horizontal rigid supporting force to push and clamp the bent portion of the waterproof layer, so that the so-called "being able to be pressed together to close the gap between the two zipper tapes" cannot be achieved. Summary of the invention

[0010] The main purpose of the present invention is to provide an impermeable zipper, wherein a covering joint body is provided in a central gap of a pair of supporting cloth tapes, and the covering joint body comprises a first covering body and a second covering body; when the impermeable zipper is in a fastened state, the first covering body and the second covering body can elastically abut against each other and deform urgently, and form a covering joint body with an impermeable function to fluid in the central gap, for example, the static fluid pressure is 30gf / cm 2 The above anti-seepage function.

[0011] In order to achieve the aforementioned purpose, the technical means adopted by the present invention is to provide an anti-seepage zipper, which includes a pair of supporting cloth tapes, each of which has a top surface, a bottom surface and an inner side edge, and a bottom surface inner edge of each bottom surface is provided with a plurality of continuous fastening elements arranged in a row, and a filler formed by a polymer elastomer is provided in a plurality of gaps adjacent to each other in the continuous fastening elements, the filler extends longitudinally and adheres to the corresponding bottom surface inner edge and the inner side edge, and forms a gap covering body laterally on the continuous fastening elements; the gap covering body includes a left covering body with a left dividing end surface and a right covering body with a right dividing end surface, and a central gap after the zipper is fastened has a width; the top surface of the supporting cloth tape on the left side and the right covering body The left covering body is provided with a waterproof layer, and the top surface of the right supporting cloth belt and the right covering body are provided with another waterproof layer, and a covering layer is extended from the side edges of the waterproof layer to longitudinally cover at least a portion of the left divided end surface and at least a portion of the right divided end surface, so that the left covering body and the covering layer together form a first covering body with a first length, and the right covering body and the covering layer together form a second covering body with a second length; when the continuous fastening element is in a fastened state, the sum of the first length and the second length is greater than the width of the central gap, so that the first covering body and the second covering body can elastically abut and deform against each other, and form a covering joint body with a fluid-proof function in the central gap.

[0012] In one embodiment, the cover bond within the central gap has a resistance to at least 30 gf / cm 2 Fluid penetration under pressure.

[0013] In one embodiment, each of the covering layers covers the left divided end surface and the right divided end surface in an adhesive manner.

[0014] In one embodiment, the length of the cladding layer is greater than the height of the left dividing end surface and the right dividing end surface, and the cladding layer has a surplus to form a portion higher than the top surface.

[0015] In one embodiment, the waterproof layer is bonded to the pair of supporting cloth tapes, the left covering body, and the right covering body by hot melt adhesive, solvent adhesive, water-based adhesive or moisture-bridged hot melt adhesive, and the waterproof layer is selected from transparent and / or opaque ether polyurethane, ester polyurethane, silicone, polyurethane / silicone copolymer, polyamide, polyolefin, polyvinyl chloride or impermeable fabric.

[0016] In one embodiment, the sum of the first length and the second length is greater than the width of the central gap in a range of 0.10 mm to 1.30 mm.

[0017] In one embodiment, the waterproof layer and the coating layer have a thickness of 0.05 mm to 0.70 mm.

[0018] In one embodiment, the polymer elastic body is in the central gap and is higher than or flush with each of the top surfaces of the pair of supporting cloth tapes.

[0019] In one embodiment, the polymer elastic body overflows the central gap and is further attached to at least a portion of each of the top surfaces of the pair of supporting cloth tapes.

[0020] In one embodiment, the continuous fastening elements are respectively disposed on an inner edge of each bottom surface or a folded portion of each top surface of the pair of supporting cloth tapes.

[0021] In one embodiment, it further includes covering the opposite left and right continuous fastening elements, the bonding yarn, and at least a portion of the bottom surface of each of the pair of supporting cloth tapes with a polymer elastic material to form a fastening element covering body, and the fastening element covering body is connected to the filler body as a whole.

[0022] Another object of the present invention is to provide a method for preparing an impermeable zipper, wherein the zipper has a thickness of 30 gf / cm 2 It still has the anti-seepage function for fluids, such as liquids, under the above static fluid pressure.

[0023] In order to achieve the aforementioned purpose, the technical means adopted in this case is to provide a method for manufacturing an anti-seepage zipper, including the following steps: providing a pair of supporting cloth tapes, each of the pair of supporting cloth tapes having a top surface, a bottom surface and an inner side edge, and a plurality of continuous fastening elements arranged in a row are provided on an inner edge of a bottom surface of each of the bottom surfaces; when the pair of supporting cloth tapes are in a fastened state, a polymer elastomer is injected into a central gap of the pair of supporting cloth tapes to form a filler body in a plurality of gaps adjacent to each other of the continuous fastening elements, the filler body longitudinally extending and adhering to the corresponding inner edge of the bottom surface and the inner side edge of the pair of supporting cloth tapes, and forming a gap covering body laterally on the continuous fastening element; performing a segmentation process on the gap covering body in the central gap to form a left covering body and a right covering body of the gap covering body, and the central gap has a width after the continuous fastening elements are fastened; the left covering body The cover body has a left divided end face, and the right covering body has a right divided end face; and the top face of the left supporting cloth tape and the left covering body are provided with a waterproof layer, and the top face of the right supporting cloth tape and the right covering body are provided with another waterproof layer, and a covering layer is extended from the side edges of the waterproof layer to longitudinally cover at least a part of the left divided end face and at least a part of the right divided end face, so that the left covering body and the covering layer together form a first covering body with a first length, and the right covering body and the covering layer together form a second covering body with a second length; when the continuous fastening element is in a fastening state, the sum of the first length and the second length is greater than the width of the central gap, so that the first covering body and the second covering body can elastically abut and deform against each other, and form a covering joint body with a fluid-proof function in the central gap.

[0024] In one embodiment, the cover bond within the central gap has a resistance to at least 30 gf / cm 2 Fluid penetration under pressure.

[0025] In one embodiment, each of the covering layers covers the left divided end surface and the right divided end surface in an adhesive manner.

[0026] In one embodiment, the length of the cladding layer is greater than the height of the left dividing end surface and the right dividing end surface, and the cladding layer has a surplus to form a portion higher than the top surface.

[0027] In one embodiment, the waterproof layer is bonded to the pair of supporting cloth tapes, the left covering body, and the right covering body by hot melt adhesive, solvent adhesive, water-based adhesive or moisture-bridged hot melt adhesive, and the waterproof layer is selected from transparent and / or opaque ether polyurethane, ester polyurethane, silicone, polyurethane / silicone copolymer, polyamide, polyolefin, polyvinyl chloride or impermeable fabric.

[0028] In one embodiment, the sum of the first length and the second length is greater than the width of the central gap in a range of 0.10 mm to 1.30 mm.

[0029] In one embodiment, the waterproof layer and the coating layer have a thickness of 0.05 mm to 0.70 mm.

[0030] In one embodiment, the polymer elastic body is in the central gap and is higher than or flush with each of the top surfaces of the pair of supporting cloth tapes.

[0031] In one embodiment, the polymer elastic body overflows the central gap and is further attached to at least a portion of each of the top surfaces of the pair of supporting cloth tapes.

[0032] In one embodiment, the continuous fastening elements are respectively disposed on an inner edge of each bottom surface or a folded portion of each top surface of the pair of supporting cloth tapes.

[0033] In one embodiment, the method further includes covering the opposite left and right continuous fastening elements, the bonding yarns, and at least a portion of the bottom surfaces of the pair of supporting cloth tapes with a polymer elastic material to form a fastening element covering body, and the fastening element covering body is connected to the filler body as a whole.

[0034] Another object of the present invention is to provide a product, which is clothing, a carrying device or a camping tool, and the opening and closing device used in the product is an impermeable zipper.

[0035] To achieve the aforementioned purpose, the technical means adopted by the present disclosure is to provide a product for clothing, a carrying device or a camping equipment, which has the aforementioned impermeable zipper. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] To further illustrate the specific technical content of this case, please first refer to the diagram, where:

[0037] Figures 1 to 6 It is a cross-sectional view of the preparation process of the first embodiment of the anti-seepage zipper;

[0038] Figure 7 It is a cross-sectional view of the second embodiment of the anti-seepage zipper after assembly;

[0039] Figure 8 It is a cross-sectional view of the third embodiment of the anti-seepage zipper after assembly;

[0040] Fig. 9 A cross-sectional view of the fourth embodiment of the anti-seepage zipper after assembly; and

[0041] Fig.10 This is a cross-sectional view of the fifth embodiment of the anti-seepage slide fastener after assembly. DETAILED DESCRIPTION

[0042] See also Figures 1 to 6 , which shows the relevant diagrams of the manufacturing process of the first embodiment of the anti-seepage zipper of the present invention. Figure 1 As shown, this embodiment is selected from a continuous loop fastening element sewing zipper 1 with a core wire, the zipper 1 includes a pair of supporting fabric tapes 11, each of the pair of supporting fabric tapes 11 has a top surface 12a, a bottom surface 12b, a bottom surface inner edge 12c, and an inner side edge 12d, and a plurality of continuous fastening elements 2 arranged in a row are arranged inside each of the bottom surfaces 12b, and the bottom surface inner edge 12c refers to the movable part between the inner side edge 12d and the binding yarn 22. The continuous fastening element 2 and the supporting fabric tape 11 are combined with the binding yarn 22 (sewing thread or warp and weft yarn).

[0043] like Figure 2 As shown, when the zipper 1 is in the fastened state, a glue injection mold (common tools are not shown) is inserted into a central gap 13 of the pair of supporting cloth tapes 11, and a glue injection process is performed, for example, a polymer elastomer 3 in a hot melt state is injected through a glue injection port on the glue injection mold and filled into a plurality of adjacent gaps 21 of the continuous fastening element 2 to form a filling body 31, and a gap covering body 32 is formed in the central gap 13 on the continuous fastening element 2, and the polymer elastomer 3 is simultaneously bonded to each of the inner side edges 12d and the inner edge 12c of the bottom surface.

[0044] like Figure 3 As shown, a splitting process is performed on the gap covering body 32 at the approximate center line of the central gap 13 of the zipper 1, so that the gap covering body 32 forms a left covering body 33 and a right covering body 34 of approximately equal length, the left covering body 33 has a left split end surface 33a, and the right covering body 34 has a right split end surface 34a, and the split end surfaces 33a, 34a each have a height h.

[0045] like Figure 4 As shown, when the zipper 1 is fastened, the central gap 13 has a width D and a first split seam 14a. During production, the heights of the left cover 33 and the right cover 34 can be adjusted as required, so that the height h of the split end faces 33a, 34a is flush with the top surface 12a or higher or lower. In this embodiment, the left cover 33 and the right cover 34 are confined in the central gap 13, and the height h of the split end faces 33a, 34a is approximately flush with the top surface 12a.

[0046] The filler 31 has an anchoring function and sticks to the inner sides 12d and the inner edges 12c of the bottom surface of the pair of supporting cloth tapes 11, so that the inner sides 12d of the pair of supporting cloth tapes 11 can firmly support the left covering body 33 and the right covering body 34, thereby ensuring that the left covering body 33 and the right covering body 34 will not shift or fall off during use.

[0047] like Figure 5 As shown, the left supporting cloth tape 11 and the right supporting cloth tape 11 are then separated, a waterproof layer 4 is laterally attached to the top surface 12a of the left supporting cloth tape 11 and the left covering body 33, and another waterproof layer 4 is laterally attached to the top surface 12a of the right supporting cloth tape 11 and the right covering body 34, and a covering layer 4a extending from each waterproof layer 4 is longitudinally attached to at least a portion of the left divided end surface 33a of the left covering body 33 and at least a portion of the right divided end surface 34a of the right covering body 34. The left covering body 33 and the covering layer 4a together form a first covering body 35 having a first length L1, and the right covering body 34 and the covering layer 4a together form a second covering body 36 having a second length L2.

[0048] In another equivalent embodiment, the pair of support tapes 11 can also be separated, and a waterproof layer 4 can be continuously attached to the top surface 12a of the left support tape 11, the left covering body 33, the right covering body 34, and the top surface 12a of the right support tape 11, and then divided, so that a coating layer 4a of one waterproof layer 4 after division covers at least a part of the left division end surface 33a of the left covering body 33, and then a coating layer 4a of another waterproof layer 4 after division covers at least a part of the right division end surface 34a of the right covering body 34. The left covering body 33 and the right covering body 34 are enlarged by the thickness of the coating layer 4a, so that the left covering body 33 and the coating layer 4a together form a first covering body 35 with a first length L1, and the right covering body 34 and the coating layer 4a together form a second covering body 36 with a second length L2. The coating layer 4a and the waterproof layer 4 have the same or different thicknesses.

[0049] The length of the covering layer 4a of the present embodiment is greater than the height h of each of the divided end surfaces 33a, 34a, so that the covering layer 4a has a margin to form a bend 4b higher than the top surface 12a, and the position of the covering layer 4a covering each of the divided end surfaces 33a, 34a is adjusted through the bend 4b, so that it can be more accurately close to the continuous fastening element 2, thereby enhancing the anti-seepage function.

[0050] like Figure 6 As shown, when the continuous fastening element 2 of the pair of supporting tapes 11 is in a fastened state, the sum of the first length L1 of the first covering body 35 and the second length L2 of the second covering body 36 is greater than the width D, so that the first covering body 35 and the second covering body 36 can elastically abut and deform against each other, and form a fluid in the central gap 13, for example, a static fluid pressure of 30 gf / cm 2 The above one covers the joint body 37.

[0051] like Figure 7 As shown, it shows a second embodiment of the anti-seepage zipper. Compared with the first embodiment, the second embodiment is selected from a coreless continuous loop fastening element woven zipper 1, and the same reference numerals (symbols) are used to represent the same components. Since the second embodiment and the first embodiment share many of the same components, only the differences between the two are described in detail below.

[0052] The difference between the second embodiment and the first embodiment is that when the zipper 1 is in the fastened state, a glue injection mold (common tools are not shown) is inserted into a central gap 13 of the zipper 1, and a glue injection process is performed, for example, a polymer elastomer 3 in a hot melt state is injected through a glue injection port on the glue injection mold and filled into a plurality of adjacent gaps 21 of a plurality of continuous fastening elements 2 arranged in two rows and interlocking with each other to form a filling body 31, and the polymer elastomer 3 overflows the central gap 13 and then adheres to a portion of each of the top surfaces 12a of the pair of supporting cloth tapes 11 to form an arrow-shaped gap covering body 32.

[0053] Next, a splitting process is performed on the gap covering body 32 to form a left covering body 33 and a right covering body 34 of substantially equal length. The left covering body 33 has a left splitting end face 33a, and the right covering body 34 has a right splitting end face 34a. The splitting end faces 33a and 34a each have a height h. When the zipper 1 is fastened, the central gap 13 has a width D and a first splitting seam 14a (see Figures 2 to 4 ).

[0054] Then, the pair of supporting cloth tapes 11 are separated, with the top surface 12a of the left supporting cloth tape 11 and the left covering body 33 laterally attached to a waterproof layer 4, and the top surface 12a of the right supporting cloth tape 11 and the right covering body 34 laterally attached to another waterproof layer 4, and a covering layer 4a extending from the side edges of the waterproof layers 4 is longitudinally attached to at least a portion of the left divided end surface 33a of the left covering body 33, and longitudinally attached to at least a portion of the right divided end surface 34a of the right covering body 34, so that the left covering body 33 and the covering layer 4a together form a first covering body 35 with a first length L1, and the right covering body 34 and the covering layer 4a together form a second covering body 36 with a second length L2.

[0055] In another equivalent embodiment, the pair of support tapes 11 can also be separated, and a waterproof layer 4 can be continuously attached to the top surface 12a of the left support tape 11, the left covering body 33, the right covering body 34 and the top surface 12a of the right support tape 11, and then divided, so that a coating layer 4a of one waterproof layer 4 after division covers at least a part of the left division end surface 33a of the left covering body 33, and then a coating layer 4a of another waterproof layer 4 after division covers at least a part of the right division end surface 34a of the right covering body 34. The left covering body 33 and the right covering body 34 are enlarged by the thickness of the coating layer 4a, so that the left covering body 33 and the coating layer 4a together form a first covering body 35 with a first length L1, and the right covering body 34 and the coating layer 4a together form a second covering body 36 with a second length L2.

[0056] like Figure 7 As shown, when the continuous fastening element 2 of the pair of supporting tapes 11 is in a fastened state, the sum of the first length L1 of the first covering body 35 and the second length L2 of the second covering body 36 is greater than the width D, so that the first covering body 35 and the second covering body 36 can elastically abut and deform against each other, and form a fluid in the central gap 13, for example, a static fluid pressure of 30 gf / cm 2 The above one covers the joint body 37.

[0057] like Figure 8 As shown, it shows the third embodiment of the anti-seepage zipper. The same numbers (symbols) as those of the second embodiment are used to represent the same components in the third embodiment. Since the third embodiment and the second embodiment share many of the same components, only the differences between the two are described in detail below.

[0058] The difference between the third embodiment and the second embodiment is that the anti-seepage zipper is an invisible sewn zipper 1 with a coreless continuous loop fastening element, and the coreless continuous loop fastening element 2 is respectively arranged at a folded portion 12e of each top surface 12a of a pair of supporting tapes 11.

[0059] When the zipper 1 is in the fastened state, a glue injection mold (common tools are not shown) is inserted into a central gap 13 of the zipper 1, and a glue injection process is performed, for example, a polymer elastomer 3 in a hot melt state is injected through a glue injection port on the glue injection mold and filled into a plurality of adjacent gaps 21 of a plurality of continuous fastening elements 2 arranged in two rows and interlocking with each other to form a filler body 31. The polymer elastomer 3 of the third embodiment can also adopt the method of the second embodiment, that is, the polymer elastomer 3 overflows the central gap 13 and then adheres to a portion of the top surface 12a of the pair of supporting cloth tapes 11 to form an arrow-shaped gap covering body 32.

[0060] Next, a splitting process is performed on the gap covering body 32 to form a left covering body 33 and a right covering body 34 of substantially equal length. The left covering body 33 has a left splitting end face 33a, and the right covering body 34 has a right splitting end face 34a. The splitting end faces 33a and 34a each have a height h. When the zipper is fastened, the central gap 13 has a width D and a first splitting seam 14a (see Figures 2 to 4 ).

[0061] Then, the pair of supporting cloth tapes 11 are separated, with the top surface 12a of the left supporting cloth tape 11 and the left covering body 33 laterally attached to a waterproof layer 4, and the top surface 12a of the right supporting cloth tape 11 and the right covering body 34 laterally attached to another waterproof layer 4, and a covering layer 4a extending from the side edges of the waterproof layers 4 is longitudinally attached to at least a portion of the left divided end surface 33a of the left covering body 33, and longitudinally attached to at least a portion of the right divided end surface 34a of the right covering body 34, so that the left covering body 33 and the covering layer 4a together form a first covering body 35 with a first length L1, and the right covering body 34 and the covering layer 4a together form a second covering body 36 with a second length L2.

[0062] In another equivalent embodiment, the pair of support tapes 11 can also be separated, and a waterproof layer 4 can be continuously attached to the top surface 12a of the left support tape 11, the left covering body 33, the right covering body 34 and the top surface 12a of the right support tape 11, and then divided, so that a coating layer 4a of one waterproof layer 4 after division covers at least a part of the left division end surface 33a of the left covering body 33, and then a coating layer 4a of another waterproof layer 4 after division covers at least a part of the right division end surface 34a of the right covering body 34. The left covering body 33 and the right covering body 34 are enlarged by the thickness of the coating layer 4a, so that the left covering body 33 and the coating layer 4a together form a first covering body 35 with a first length L1, and the right covering body 34 and the coating layer 4a together form a second covering body 36 with a second length L2.

[0063] like Figure 8 As shown, when the continuous fastening element 2 of the pair of supporting tapes 11 is in a fastened state, the sum of the first length L1 of the first covering body 35 and the second length L2 of the second covering body 36 is greater than the width D, so that the first covering body 35 and the second covering body 36 can elastically abut and deform against each other, and form a fluid in the central gap 13, for example, a static fluid pressure of 30 gf / cm 2 The above one covers the joint body 37.

[0064] Therefore, through the implementation of the third embodiment, the existing invisible zipper has a high anti-seepage function, that is, the central gap 13 and the pair of supporting fabric tapes 11 of the anti-seepage invisible zipper both have an anti-seepage function.

[0065] Please refer to Figure 8 , which shows that a reflective film 5 is attached to the waterproof layer of the invisible anti-seepage zipper. The reflective film 5 is about 10 mm wide and symmetrically attached to the center of the anti-seepage zipper. After being divided, each of the reflective films 5 is about 5 mm wide on the pair of supporting cloth tapes 11. The reflective film 5 can be replaced with a colorful flower film to improve the appearance and safety.

[0066] like Fig. 9 As shown, it shows the fourth embodiment of the anti-seepage zipper. Compared with the second embodiment, the fourth embodiment is selected from a coreless continuous loop fastening element woven zipper. The same numbers (symbols) are used to represent the same components. Since the fourth embodiment shares many common components with the third embodiment, only the differences between the two are described in detail below.

[0067] The difference between the fourth embodiment and the second embodiment is that a polymer elastomer 3 is injected into a top surface 12a and a central gap 13 of a pair of supporting cloth tapes 11, so that the polymer elastomer 3 is filled in a plurality of adjacent gaps 21 of a plurality of continuous fastening elements 2 arranged in two rows and interlocking with each other to form a filler 31, and a gap covering body 32 is formed laterally on the continuous fastening elements 2, and the polymer elastomer 3 overflows the central gap 13 and then adheres to most of the top surfaces 12a of the pair of supporting cloth tapes 11 to form the gap covering body 32 and a glue layer 4c, which can enhance the bonding strength between a waterproof layer 4 and each of the top surfaces 12a.

[0068] Next, a splitting process is performed on the gap covering body 32 to form a left covering body 33 and a right covering body 34 of substantially equal length. The left covering body 33 has a left splitting end face 33a, and the right covering body 34 has a right splitting end face 34a. The splitting end faces 33a and 34a have a height h. When the zipper is fastened, the central gap 13 has a width D and a first splitting seam 14a (see Figures 2 to 4 ).

[0069] Then, the pair of supporting cloth tapes 11 are placed in a separated state, with at least a portion of the adhesive layer 4c of the left supporting cloth tape 11 and the left covering body 33 being laterally bonded to a waterproof layer 4, and at least a portion of the adhesive layer 4c of the right supporting cloth tape 11 and the right covering body 34 being laterally bonded to another waterproof layer 4, and a covering layer 4a extending from the side of each waterproof layer 4 is longitudinally attached to at least a portion of the left divided end surface 33a of the left covering body 33 and at least a portion of the right divided end surface 34a of the right covering body 34, so that the left covering body 33 and the covering layer 4a together form a first covering body 35 with a first length L1, and the right covering body 34 and the covering layer 4a together form a second covering body 36 with a second length L2.

[0070] In another equivalent embodiment, the pair of supporting fabric tapes 11 can also be separated, and a waterproof layer 4 can be continuously attached to each of the adhesive layers 4c of the pair of supporting fabric tapes 11, the left covering body 33, and the right covering body 34, and then the waterproof layer 4 can be further divided so that the two sides in the middle of the waterproof layer 4 each have a covering layer 4a to respectively cover at least a portion of the left divided end surface 33a of the left covering body 33 and at least a portion of the right divided end surface 34a of the right covering body 34. The left covering body 33 and the covering layer 4a together form a first covering body 35 having a first length L1, and the right covering body 34 and the covering layer 4a together form a second covering body 36 having a second length L2.

[0071] like Fig. 9 As shown, when the continuous fastening element 2 of the pair of supporting tapes 11 is in a fastened state, the sum of the first length L1 of the first covering body 35 and the second length L2 of the second covering body 36 is greater than the width D of the central gap 13, so that the first covering body 35 and the second covering body 36 can elastically abut and deform against each other, and form a fluid in the central gap 13, for example, a static fluid pressure of 30 gf / cm 2 The above one covers the joint body 37.

[0072] like Fig.10 As shown, it shows the fifth embodiment of the anti-seepage zipper. Compared with the first embodiment, the fifth embodiment is selected from a sewn zipper 1 with a core wire continuous loop fastening element, and the same numbers (symbols) are used to represent the same components. Since the fifth embodiment shares many common components with the first embodiment, only the differences between the two are described in detail below.

[0073] The difference between the fifth embodiment and the first embodiment is that, when the zipper 1 is in the fastened state, a glue injection mold (common tools are not shown) is inserted into a central gap 13 of the pair of supporting cloth tapes 11, and a glue injection process is performed, for example, a polymer elastomer 3 in a hot melt state is injected and filled into a plurality of adjacent gaps 21 of the continuous fastening element 2 through a glue injection port on the glue injection mold to form a filling body 31, and a gap covering body 32 is formed in the central gap 13 on the continuous fastening element 2, and the polymer elastomer 3 is simultaneously bonded to each of the inner side edges 12d and the inner edge 12c of the bottom surface. Next, on the bottom surface 12b of the pair of supporting cloth tapes 11, a polymer elastic material 3a in a hot melt state is coated on the continuous fastening element 2, the outer surface of the bonding yarn 22, and at least a portion of the bottom surface 12b of the pair of supporting cloth tapes 11 to form a fastening element coating body 38, and the fastening element coating body 38 is connected to the filler body 31 as a whole.

[0074] Subsequently, a splitting process is performed on the gap covering body 32 to form a left covering body 33 and a right covering body 34 of substantially equal length. The left covering body 33 has a left splitting end face 33a, and the right covering body 34 has a right splitting end face 34a. The splitting end faces 33a and 34a have a height h. When the zipper is fastened, the central gap 13 has a width D and a first splitting seam 14a (see Figures 2 to 4 ). A splitting process is also performed on the fastening element encapsulation body 38 to form a second splitting seam 38a. Basically, the position of the second splitting seam 38a corresponds to the first splitting seam 14a on the other side.

[0075] Finally, when the pair of supporting tapes 11 are in a separated state, at least a portion of the adhesive layer 4c of the supporting tape 11 on the left side and the left covering body 33 are laterally bonded to a waterproof layer 4, and at least a portion of the adhesive layer 4c of the supporting tape 11 on the right side and the right covering body 34 are laterally bonded to another waterproof layer 4, and a covering layer 4a extending from the side of each waterproof layer 4 is longitudinally attached to at least a portion of the left divided end surface 33a of the left covering body 33 and at least a portion of the right divided end surface 34a of the right covering body 34, so that the left covering body 33 and the covering layer 4a together form a first covering body 35 with a first length L1, and the right covering body 34 and the covering layer 4a together form a second covering body 36 with a second length L2.

[0076] In another equivalent embodiment, the pair of supporting fabric tapes 11 can also be separated, and a waterproof layer 4 can be continuously attached to each of the adhesive layers 4c of the pair of supporting fabric tapes 11, the left covering body 33, and the right covering body 34, and then the waterproof layer 4 can be further divided so that the two sides in the middle of the waterproof layer 4 each have a covering layer 4a to respectively cover at least a portion of the left divided end surface 33a of the left covering body 33 and at least a portion of the right divided end surface 34a of the right covering body 34. The left covering body 33 and the covering layer 4a together form a first covering body 35 having a first length L1, and the right covering body 34 and the covering layer 4a together form a second covering body 36 having a second length L2.

[0077] like Fig.10 As shown, when the continuous fastening element 2 of the pair of supporting tapes 11 is in a fastened state, the sum of the first length L1 of the first covering body 35 and the second length L2 of the second covering body 36 is greater than the width D of the central gap 13, so that the first covering body 35 and the second covering body 36 can elastically abut and deform against each other, and form a fluid in the central gap 13, for example, a static fluid pressure of 30 gf / cm 2 The above one covers the joint body 37.

[0078] The fastening element covering body 38 can inhibit the horizontal sliding of the opposite left and right continuous fastening elements 2 with each other, and between the opposite left and right continuous fastening elements 2 and the corresponding supporting cloth tapes, and at the same time, the opposite left and right continuous fastening elements 2 can maintain a horizontal fastening posture. This can prevent the problem of the central gap being opened by the aforementioned lateral external force, so as to enhance the anti-seepage function of the covering joint body 37, and the opposite left and right continuous fastening elements 2 can be kept in a horizontal fastening posture, so that the opposite left and right continuous fastening elements 2 can maintain a stable arrangement and fastening in a zipper head, thereby improving durability.

[0079] In the above-mentioned embodiments, a coating layer 4a of suitable thickness is selected to cover the split end faces 33a and 34a, and the thickness of the coating layer 4a is increased to expand the left cover body 33 and the right cover body 34, so as to eliminate the first split seam 14a that may leak water, so as to meet the requirements of different waterproof levels. The thickness of the coating layer 4a is between 0.05 mm and 0.70 mm, but not limited thereto. Furthermore, the coating layer 4a can be respectively coated on the split end faces 33a and 34a by bonding. If necessary, the length of the coating layer 4a can be greater than the height h of the split end faces 33a and 34a, so that the coating layer 4a has a margin to form a fold 4b higher than the top surface 12a, and the position of the coating layer 4a coated on each of the split end faces 33a and 34a is adjusted by the fold 4b so as to be closer to the corresponding continuous fastening element 2 more accurately.

[0080] The waterproof layer 4 is combined with the pair of supporting cloth tapes 11, the left cover 33, and the right cover 34 by hot melt adhesive, solvent adhesive, water-based adhesive or moisture-bridged hot melt adhesive. The polymer elastomer 3 and the waterproof layer 4 are selected from transparent and / or opaque ether polyurethane, ester polyurethane, silicone, polyurethane / silicone copolymer, polyamide, polyolefin, polyvinyl chloride or water-impermeable fabric.

[0081] The sum of the first length L1 of the first covering body 35 and the second length L2 of the second covering body 36 and the width D of the central gap 13 has a size range of at least 0.10 mm, for example, from 0.10 mm to 1.30 mm, subject to actual production needs but not limited thereto.

[0082] Furthermore, the pair of supporting cloth strips 11, the left covering body 33 and the right covering body 34 can first be provided with an adhesive layer and then adhered to the waterproof layer 4. The adhesive layer can be selected from hot melt adhesive, moisture-reactive polyurethane, heat-reactive thermoplastic polyurethane or solvent adhesive; and the waterproof layer is selected from thermosetting polyurethane, high melting point polyurethane, etc., but is not limited to this.

[0083] Therefore, through the implementation of the present invention, its beneficial effect is that, by the sum of the first covering body including the covering layer having the first length and the second covering body including the covering layer having the second length being greater than the width of the central gap, when the continuous fastening element is in a fastened state, the first covering body and the second covering body can elastically abut against each other and deform urgently, so that the central gap is under high pressure, for example, at a height of 30 gf / cm 2 It still has the anti-seepage function for fluids such as gas and liquid under the above static fluid pressure, which can be regarded as a major breakthrough in anti-seepage zippers.

[0084] Furthermore, the anti-seepage zipper can be applied to clothing, such as clothes or pants, carrying devices, such as bags or backpacks, camping equipment, such as tents, sleeping bags and other products, so that the products have an anti-seepage function.

[0085] The content of the present invention is one of the preferred embodiments. Any local changes or modifications that are derived from the technical ideas of the present invention and are easily obtained by those skilled in the art are all within the protection scope of the present disclosure.

Claims

1. An anti-seepage zipper, comprising a pair of supporting cloth tapes, each of the pair of supporting cloth tapes having a top surface, a bottom surface and an inner side edge, and a plurality of continuous fastening elements arranged in a row are provided on the inner edge of each bottom surface, a caulking body formed by a polymer elastic body is provided in a plurality of gaps adjacent to each other of the continuous fastening elements, the caulking body extends longitudinally and adheres to the corresponding inner edge of the bottom surface and the inner side edge, and a gap covering body is formed laterally on the continuous fastening elements; the gap covering body comprises a left covering body having a left split end surface and a right covering body having a right split end surface, and a central gap after the zipper is fastened has a width; the top surface of the left supporting cloth tape and the left covering body are provided with a waterproof layer, and the top surface of the right supporting cloth tape is provided with a waterproof layer. Another waterproof layer is provided with the right covering body, and a covering layer is extended from the side of each of the waterproof layers to longitudinally cover at least a part of the left divided end face and at least a part of the right divided end face, and each of the covering layers is covered on the left divided end face and the right divided end face in an adhesive manner, so that the left covering body and the covering layer together form a first covering body with a first length, and the right covering body and the covering layer together form a second covering body with a second length; when the continuous fastening element is in a fastened state, the sum of the first length and the second length is greater than the width of the central gap, so that the first covering body and the second covering body can elastically abut and deform against each other, and form a covering joint body with a fluid-proof function in the central gap; The length of the coating layer is greater than the height of the left dividing end face and the right dividing end face, and the coating layer has a surplus to form a portion higher than the top surface.

2. The anti-seepage slide fastener according to claim 1, wherein the covering joint in the central gap has a resistance to at least a static fluid pressure of 30 gf / cm 2 of fluid penetration.

3. The anti-seepage zipper according to claim 1, wherein the waterproof layer is bonded to the pair of supporting fabrics, the left covering body, and the right covering body by hot melt adhesive, solvent adhesive, water-based adhesive, or moisture-bridged hot melt adhesive, and the waterproof layer is selected from transparent and / or opaque ether polyurethane, ester polyurethane, silicone, polyurethane / silicone copolymer, polyamide, polyolefin, polyvinyl chloride, or impermeable fabric. 4 . The anti-seepage zipper according to claim 1 , wherein the sum of the first length and the second length is greater than the width of the central gap in a range of 0.10 mm to 1.30 mm. The anti-seepage zipper according to claim 1 , wherein the waterproof layer and the coating layer have a thickness of 0.05 mm to 0.70 mm. 6 . The anti-seepage zipper according to claim 1 , wherein the polymer elastic body is in the central gap and is higher than or flush with each of the top surfaces of the pair of supporting fabric tapes.

7. The anti-seepage slide fastener according to claim 1, wherein the polymer elastic body overflows the central gap and is further attached to at least a portion of each of the top surfaces of the pair of supporting fabric tapes.

8. The anti-seepage zipper according to claim 1, wherein the continuous fastening elements are respectively disposed at an inner edge of each bottom surface or a folded portion of each top surface of the pair of supporting tapes.

9. The anti-seepage zipper according to claim 1 further comprises a polymer elastic material covering the opposite left and right continuous fastening elements, the bonding yarn, and at least a portion of the bottom surface of each of the pair of supporting cloth tapes to form a fastening element covering body, and the fastening element covering body is connected to the caulking body as a whole.

10. A method for making an impermeable zipper, comprising the following steps: A pair of supporting cloth belts is provided, each of the pair of supporting cloth belts has a top surface, a bottom surface and an inner side edge, and a bottom surface inner edge of each bottom surface is provided with a plurality of continuous fastening elements arranged in a row; When the pair of supporting cloth tapes are in a fastened state, a polymer elastic body is injected into a central gap of the pair of supporting cloth tapes to form a gap filling body in a plurality of gaps adjacent to each other of the continuous fastening elements. The gap filling body extends longitudinally and adheres to the corresponding inner edges of the bottom surface and the inner side edges of the pair of supporting cloth tapes, and forms a gap covering body laterally on the continuous fastening elements; The gap covering body is divided in the central gap to form a left covering body and a right covering body, wherein the central gap has a width after the continuous fastening elements are fastened; the left covering body has a left dividing end face, and the right covering body has a right dividing end face; and The top surface of the left supporting cloth tape and the left covering body are provided with a waterproof layer, and the top surface of the right supporting cloth tape and the right covering body are provided with another waterproof layer, and a covering layer is extended from the side edges of the waterproof layer to longitudinally cover at least a part of the left divided end face and at least a part of the right divided end face, and each covering layer is covered on the left divided end face and the right divided end face in an adhesive manner, so that the left covering body and the covering layer together form a first covering body with a first length, and the right covering body and the covering layer together form a second covering body with a second length; When the continuous fastening element is in a fastened state, the sum of the first length and the second length is greater than the width of the central gap, so that the first covering body and the second covering body can elastically abut against each other and deform urgently, and form a covering joint body with a fluid-proof function in the central gap; The length of the coating layer is greater than the height of the left dividing end face and the right dividing end face, and the coating layer has a surplus to form a portion higher than the top surface.

11. The method according to claim 10, wherein the covering joint in the central gap has a property of preventing at least a hydrostatic pressure of 30 gf / cm 2 of fluid penetration.

12. The method according to claim 10, wherein the waterproof layer is bonded to the pair of supporting cloth tapes, the left covering body, and the right covering body by hot melt adhesive, solvent adhesive, water-based adhesive, or moisture-bridged hot melt adhesive, and the waterproof layer is selected from transparent and / or opaque ether polyurethane, ester polyurethane, silicone, polyurethane / silicone copolymer, polyamide, polyolefin, polyvinyl chloride, or impermeable fabric. 13 . The method according to claim 10 , wherein the sum of the first length and the second length is greater than the width of the central gap in a range of 0.10 mm to 1.30 mm.

14. The method according to claim 10, wherein the waterproof layer and the coating layer have a thickness of 0.05 mm to 0.70 mm. 15 . The manufacturing method according to claim 10 , wherein the polymer elastic body is in the central gap and is higher than or flush with each of the top surfaces of the pair of supporting cloth tapes. 16 . The manufacturing method according to claim 10 , wherein the polymer elastic body overflows the central gap and further adheres to at least a portion of the top surface of each of the pair of supporting cloth tapes.

17. The manufacturing method according to claim 10, wherein the continuous fastening elements are respectively disposed on an inner edge of each bottom surface or a folded portion of each top surface of the pair of supporting cloth tapes.

18. The method according to claim 10 further comprises covering the opposite left and right continuous fastening elements, the bonding yarns, and at least a portion of the bottom surfaces of the pair of supporting cloth tapes with a polymer elastic material to form a fastening element covering body, and the fastening element covering body is integrally connected to the caulking body.

19. A product with an impermeable zipper for use in clothing, carrying devices or camping equipment, comprising the impermeable zipper according to any one of claims 1 to 9.

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