Method for manufacturing waterproof zipper

Abstract

A method for manufacturing waterproof zipper is completed in following steps. Firstly, a release paper is provided, a release side of which is provided with the shape, such as glossy surface, matte surface, figures, patterns, trademarks and characters, required by client. Afterwards, a liquid hot melt glue is applied to the release side, and a heating procedure is performed on the liquid hot melt glue. Subsequently, a zipper is provided, and a hot rolling procedure is performed on the zipper, release paper and liquid hot melt glue, one side of a zipper tape without zipper teeth being bound to the liquid hot melt glue and release paper by hot rolling, the liquid hot melt glue being formed as a waterproof layer. Finally, the release paper is peeled off, so as to form the shape on a surface of waterproof layer contacted with the release side, and complete the waterproof zipper.

Claims

1. A method for manufacturing waterproof zipper, comprising the steps of: Step A: providing a release paper, a release side of which is oriented upwards and formed with a glossy surface or matte surface, or pressed with indented or embossed figures, patterns, trademarks or characters; Step B: applying a liquid hot melt glue to said release side of said release paper; Step C: performing a heating procedure on said liquid hot melt glue to activate said liquid hot melt glue, wherein six heating boxes, each operating at an individual heating temperature, are arranged in succession based on the individual heating temperatures of 55 C., 55 C., 60 C., 85 C., 60 C., and 55 C., the six heating boxes are provided in said heating procedure, so that said liquid hot melt glue is uniformly activated; Step D: providing a zipper, said zipper comprising a zipper tape and zipper teeth, wherein each one of the zipper teeth are engaged with a corresponding another one of the zipper teeth and each of the zipper teeth are located on a first side of the zipper tape; Step E: performing a hot rolling procedure on said zipper, said release paper and said liquid hot melt glue to harden said liquid hot melt glue, in which the first side of said zipper tape provided with said zipper teeth is oriented upwards, while a second side of said zipper tape without said zipper teeth is oriented downwards and bound to said liquid hot melt glue by the hot rolling procedure, said liquid hot melt glue being formed as a waterproof layer; and Step F: peeling off said release paper, so as to form a glossy surface, a matted surface, figures, patterns, trademarks, or characters on a surface of said waterproof layer contacted with said release side.

2. The method for manufacturing waterproof zipper according to claim 1, wherein said zipper teeth are provided as nylon teeth, metal teeth or plastic steel teeth.

3. The method for manufacturing waterproof zipper according to claim 1, wherein said liquid hot melt glue is provided as polyurethane (PU) liquid glue.

4. The method for manufacturing waterproof zipper according to claim 1, wherein said hot rolling procedure in Step E is performed by a first hot rolling device and a second hot rolling device for hot rolling said zipper, said release paper and said liquid hot melt glue, as well as said zipper and said release paper are turned over firstly, such that one side of said zipper tape provided with said zipper teeth is oriented downwards, while the other side of said zipper tape without said zipper teeth, said release paper and said waterproof layer are oriented upwards, between said first hot rolling device and said second hot rolling device.

5. The method for manufacturing waterproof zipper according to claim 4, further comprising Step G: performing a water-repellent agent addition procedure on said zipper to enhance the waterproof effect of said zipper after Step F.

6. The method for manufacturing waterproof zipper according to claim 5, wherein said water-repellent agent addition procedure in Step G provides a water-repellent agent immersion device and a water-repellent agent spraying device for the addition of a water-repellent agent layer to said zipper.

7. The method for manufacturing waterproof zipper according to claim 5, further comprising Step H: performing a cutting procedure on said waterproof layer formed by said liquid hot melt glue at a center in an axial direction thereof and aligning a cutting location with an engagement of said zipper teeth after Step G.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a perspective exploded view of an existing waterproof zipper structure.

(2) FIG. 2 is a diagram of manufacturing equipment for the existing waterproof zipper structure.

(3) FIG. 3 is a flow chart (1) of a method for manufacturing waterproof zipper of the present invention.

(4) FIG. 4 is a diagram (1) of equipment for the method for manufacturing waterproof zipper of the present invention.

(5) FIG. 5 is a perspective exploded view of a waterproof zipper product of the present invention.

(6) FIG. 6 is a perspective assembled view of the waterproof zipper product of the present invention.

(7) FIG. 7 is a flow chart (2) of the method for manufacturing waterproof zipper of the present invention.

(8) FIG. 8 is a flow chart (3) of the method for manufacturing waterproof zipper of the present invention.

(9) FIG. 9 is a diagram (2) of equipment for the method for manufacturing waterproof zipper of the present invention.

(10) FIG. 10 is a plan view of the waterproof zipper product of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(11) Referring to FIGS. 3, 5, 6 and 10, there are shown a method for manufacturing waterproof zipper 2 and a waterproof zipper product 3. In this connection, the method for manufacturing waterproof zipper 2 includes, referring to a manufacturing equipment for waterproof zipper 4 illustrated in FIG. 4 together, steps as follows.

(12) In Step A, there is provided a release paper 30, a release side 300 of which is oriented upwards and formed with a glossy surface or matte surface, or pressed with indents or embossments, such as figures, patterns, trademarks and characters. The release paper 30 is referred to a wound release paper, and the release paper 30 is located on a rotating mount 40. One end of the wound release paper 30 is dragged to a first drawing device 43 previously. Afterwards, the wound release paper 30 may be processed continuously only if the release paper 30 is hauled by the first drawing device 43.

(13) In Step B, a liquid hot melt glue 31 is applied to the release side 300 of the release paper 30 by means of an application device 41.

(14) In Step C, a heating procedure is performed on the liquid hot melt glue 31 to activate the liquid hot melt glue 31 by means of a heating device 42;

(15) In Step D, a zipper 32 is provided, the zipper 32 particularly being referred to a zipper in which zipper teeth 320 are located on the same side of a zipper tape 321 after being engaged together.

(16) In Step E, a hot rolling procedure is performed on the zipper 32, the release paper 30 and the liquid hot melt glue 31, in which one side of the zipper tape 321 provided with the zipper teeth 320 is oriented upwards, while the other side of the zipper tape 321 without the zipper teeth 320 is oriented downwards and bound to the liquid hot melt glue 31 by hot rolling, the liquid hot melt glue 31 being formed as a waterproof layer.

(17) Moreover, in Step F, the release paper 30 is peeled off, so as to form a glossy surface, a matted surface, figures, patterns, trademarks, or characters on a surface 310 of the waterproof layer contacted with the release side 300. Afterwards, the release paper 30 and the product 3 with the release paper 30 being peeled off are wound to be collected for the following processing. In other words, the product 3 includes the waterproof layer formed by the liquid hot melt glue 31, and the zipper 32, the zipper 32 including the zipper tape 321 and the zipper teeth 320.

(18) Specifically, the shape, such as a glossy surface, a matte surface, figures, patterns, trademarks, characters and etc., required by the client, is firstly formed on the release side 300. Afterwards, the release paper 30 and the liquid hot melt glue 31 are provided on one side of the zipper tape 321 without the zipper teeth 320. Next, the heating procedure is performed on the liquid hot melt glue 31 so as to activate the liquid hot melt glue 31, and the release paper 30 is peeled off after the liquid hot melt glue 31 is cooled down. Thus, the shape, such as a glossy surface, a matte surface, figures, patterns, trademarks, characters and etc., is formed on the surface 310 of the liquid hot melt glue 31 contacted with the release side 300. Thereby, the zipper with the configuration required by the client is completed.

(19) Subsequently, more glue is prone to be permeated into the fiber fabric of the zipper tape 321 when the liquid hot melt glue 31 is heated to activate, such that the adhesive effect and the waterproof effect between the waterproof layer formed by the liquid hot melt glue 31 and the zipper tape 321 may be enhanced. Moreover, it is more comfortable for a user wearing the clothing mounted with the product 3, because the product 3 without the adhesive layer is softer in the present invention.

(20) In Step E, referring to FIGS. 4 and 10 again, the hot rolling procedure is performed by a first hot rolling device 44 and a second hot rolling device 45 for hot rolling the zipper 32, the release paper 30 and the liquid hot melt glue 31. Moreover, the zipper 32 and the release paper 30 are turned over firstly, such that one side of the zipper tape 321 provided with the zipper teeth 320 is oriented downwards, while the other side of the zipper tape 321 without the zipper teeth 320, the release paper 30 and the waterproof layer are oriented upwards, between the first hot rolling device 44 and the second hot rolling device 45. In this connection, hot rolling is specially performed on the liquid hot melt glue 31 and the zipper 32 twice by means of the first hot rolling device 44, overturning procedure and the second hot rolling device 45 in turn, for preventing the displacement generated when the liquid hot melt glue 31 is stuck to the zipper tape 321, and thus the defect of wrinkle or poor sturdiness.

(21) After Step F, referring to FIGS. 7, 9 and 10 further, the method further includes Step G: performing a water-repellent agent addition procedure on the zipper 32 to enhance the waterproof effect of the zipper 32. In the water-repellent agent addition procedure of the Step G, a water-repellent agent immersion device 46 and a water-repellent agent spraying device 47 are provided for the addition of a water-repellent agent layer 33 to the zipper 32. In this way, the zipper 32 is enclosed by the water-repellent agent layer 33 so as to enhance the waterproof effect of the zipper 32.

(22) After Step G, referring to FIGS. 8 to 10, the method further includes Step H: performing a cutting procedure, by means of a cutting device 48, on the waterproof layer formed by the liquid hot melt glue 31 at the center in the axial direction thereof. Moreover, a cutting location 34 is aligned with the engagement of the zipper teeth 320. Afterwards, the product 3 is drawn by a second drawing device 49 and then wound to be collected. In the cutting procedure, it is then convenient for the cutting device 48 with a cutting edge portion 480 oriented downwards to cut the zipper tape 321, because the zipper 32 and the liquid hot melt glue 31 are turned over to orient the zipper tape 321 upwards by means of the overturning procedure prior to the cutting procedure.

(23) Furthermore, referring to FIGS. 4 and 9 again, six heating boxes 420, having heating temperature set at 55 C., 55 C., 60 C., 85 C., 60 C. and 55 C., respectively, are provided in the heating device 42, when the liquid hot melt glue 31 is provided as cryogenic liquid polyurethane (PU) glue in the embodiment of the present invention. In the present invention, heating temperature for slowly progressive activation is specifically adopted to heat the liquid hot melt glue 31, for preventing abrupt and significant change in the heating temperature and thus the effect on the activation. In addition, the zipper teeth 320 are provided as nylon teeth, metal teeth or plastic steel teeth, but not limited thereto.

(24) To sum up, the features of the present invention are as follows.

(25) 1. More glue is prone to be permeated into the fiber fabric of the zipper tape 321 when the liquid hot melt glue 31 is heated to activate, such that the adhesive effect and the waterproof effect between the waterproof layer formed by the liquid hot melt glue 31 and the zipper tape 321 may be enhanced.

(26) 2. In addition, it is more comfortable for a user wearing the clothing mounted with the product 3, because the product 3 without the adhesive layer is softer in the present invention.