TW201909783A - Waterproof zipper cloth and waterproof zipper - Google Patents

Abstract

A waterproof fastener tape and a watertight slide fastener including the waterproof fastener tape are used to solve the problems of deformation of the core portion and poor watertightness and poor airtightness during formation of scoops on conventional watertight fastener tapes. The waterproof fastener tape includes a tape having a first surface and a second surface. The tape includes a core portion protruding from the first surface and located adjacent to an inner side of the tape. An extension is formed between the core portion and the inner side of the tape. The second surface is planar. The waterproof fastener tape further includes a watertight layer covering the first surface, the second surface, the core portion, an inner face, and an outer face, with the inner face and the outer face interconnecting the first surface and the second surface. A plurality of scoops is formed on the inner side of each of two waterproof fastener tapes, and a pull tab is provided on the two waterproof fastener tapes, thereby forming a watertight slide fastener.

Description

   Waterproof zipper cloth and waterproof zipper   

The invention relates to a waterproof zipper cloth and a waterproof zipper, in particular to a shaper who forms a liquid-tight layer on a zipper cloth with a yarn core, and the sprocket can be easily and accurately positioned.

A webbing or cloth tape is covered and coated with an elastomeric material such as rubber, so that the webbing or cloth tape has a waterproof function, including zipper industry has been used for decades. As shown in FIG. 1, a waterproof zipper 7 is disclosed, which is mainly composed of a pair of band-shaped core materials 71 woven or knitted with a liquid-tight layer 72 covered with an elastomer material, so that the pair of band-shaped core materials A plurality of through-holes are formed at a mounting edge portion of 71, and the through-holes can pass through the raw resin in a molten state, so that the upper half and the lower half of the plurality of sprocket teeth 73 can be installed along one of the pair of belt-shaped core materials. The edge portion is formed, and the plurality of sprocket teeth 73 are formed on the upper surface and the lower surface of the pair of band-shaped core materials 71, which has been issued by the Republic of China Publication No. I251477 (U.S. No. 7,337,506) "Waterproof zipper and manufacturing device thereof Revealed in the patent case.

The plurality of sprocket teeth 73 are prepared by injection molding, and the raw resin in a molten state is mounted on the pair of strip-shaped core materials 71. Since the pair of strip-shaped core materials 71 are not provided with protruding cores on a half surface, and It is impossible to visually check whether the mounting edge portion of the pair of strip-shaped core materials 71 is in full contact with the cavity, resulting in the pair of strip-shaped core materials 71 being placed in the cavity of the mold to form the sprocket 73, the pair of belts cannot be made. The core member 71 is accurately positioned in the cavity, and the installation work becomes difficult to operate, and the formed sprocket 73 cannot be neatly formed on the mounting edge portion of the pair of belt-shaped core members 71, so that the sprocket 73 is formed. The skew cannot be formed on the same straight line.

As shown in FIG. 2, it is a kind of “zipper” disclosed in Japanese Sho Sho 63-13687. The zipper tape 8 has a cloth tape 81, a core portion 82, and an extension portion 83. The cloth tape 81 A liquid-tight layer 84 is coated on the front and back sides by an elastomer material. The liquid-tight layer 84 covers the tape 81, the core portion 82, and the extension portion 83. The liquid-tight layer 84 further includes the extension portion 83. A fin 85 is protruded, and a plurality of through holes 86 are provided along the longitudinal direction of the cloth tape 81. Then, the zipper tape 8 is placed in a cavity of a mold to form a plurality of sprockets 87. Asymmetrical displacements of the half teeth and the lower half teeth are arranged on the cloth tape 81 covered with the liquid-tight layer 84 at equal intervals. Since the zipper tape 8 has the fins 85 extending, when the molten elastomer material is coated on the cloth tape 81, the zipper tape 8 coated with the liquid-tight layer 84 is caused by the core portion. 82 and this fin 85 are deformed. In addition, since the upper half teeth and the lower half teeth of the plurality of sprockets 87 form an offset arrangement, when the installed plurality of sprockets 87 form an asymmetric deviation from the through hole 86, the zipper cannot Achieve the effect of water cut.

Please refer to FIG. 3 and FIG. 4, which is a conventional liquid-tight zipper 9 disclosed in the patent case of the Republic of China Publication No. I383758 “Liquid-tight Zipper and Its Manufacturing Method”, which is mainly composed of a A tape 92 has a core portion 92 on the opposite side of the tape member 91, and a liquid-tight layer 93 is provided on one surface of the pair of tape members 91. The liquid-tight layer 93 is attached to a film by The belt member 91 is formed by thinly coating the melted resin on the belt member 91, and then a synthetic resin is used to inject the sprocket 94 onto the pair of belt members 91 to form a continuous sprocket row. Moreover, a water repellent agent or an oil repellent agent is attached to the belt member 91, the core portion 92, the liquid-tight layer 93, and the sprocket 94 of the zipper strip, so that the zipper strip has a waterproof function.

The mold for forming the sprocket 94 has a row of spaced multiple sprocket cavities, and the cavity includes a groove matching the core 92. In this way, the belt member 91, the core 92, and the liquid-tight layer 93 are placed in the cavity. In the cavity and the groove matching the core portion 92, synthetic resin is injected to form the sprocket 94 to ensure the strength of the sprocket 94 mounted on the belt member 91. Since the liquid-tight layer 93 is formed only by attaching a film to the belt member 91 or thinly coating a molten resin on a surface of the belt member 91, the molten resin is not formed. It is coated on the core 92, and the sprockets 94 still have a gap between each other, and a water repellent or oil repellent is attached to the sprockets. However, after a period of use, the water will still follow the engaged sprocket The gap between 94 is penetrated from the outer surface to the inner surface of the garment. Therefore, the liquid-tight zipper 9 having the liquid-tight layer 93 can only prevent the infiltration of light rain or form a water repellent effect. The conventional liquid-tight zipper 9 Still unable to achieve the effect of truly preventing the penetration of water.

Therefore, how to form a liquid-tight layer on the zipper cloth having a core portion, and how to prevent the waterproof zipper cloth from deforming, so that the sprocket can be easily installed and formed and neatly mounted on the waterproof zipper cloth. It is really necessary to improve the manufacture of waterproof zipper cloth and its zipper.

In order to solve the above problems, an object of the present invention is to provide a waterproof zipper cloth having a core portion, a webbing portion of the waterproof zipper cloth and a surface of the core portion having a waterproof layer, so that the waterproof zipper cloth It has a better effect of preventing the penetration of water.

A secondary object of the present invention is to provide a waterproof zipper cloth, which is not deformed, so that a plurality of chain teeth can be easily installed and formed, and can be neatly mounted on the waterproof zipper cloth.

Still another object of the present invention is to provide a waterproof zipper cloth, which can securely fix the sprocket to the waterproof zipper cloth.

In the present invention, the longitudinal extension direction of the zipper cloth is defined as the X direction, and the two sides constituting the longitudinal extension are the two long sides; the extension direction of the two long sides connected to the zipper cloth is the Y direction, and the zipper can be constituted. The short side of the cloth; and the direction of the thickness extension of the zipper cloth is the Z direction, and can constitute the side of the zipper cloth; the X, Y, and Z directions are orthogonal to each other, and the two zipper cloths are adjacent to each other in the Y direction The side that is "inside" and the side that is far away is "outside."

The waterproof zipper cloth of the present invention comprises: a cloth tape having a first surface and a second surface; a first surface of the cloth tape has a core portion protruding from the first surface, and the core portion is adjacent to the The inner side of the tape, and an extension is formed between the core and the inner side, the second surface forms a plane; and a liquid-tight layer covers the first surface, the second surface, and the core And inner and outer sides connecting the first surface and the second surface.

According to this, the waterproof zipper cloth of the present invention has the core portion, so that the tape of the waterproof zipper cloth is put into the pressing mold, and the core portion has a guide and makes it easy to place the tape in the pressing mold. The role of the mold cavity, and when the molten polymer material is coated on the surface layer of the tape, the waterproof layer can form a relatively flat surface to form a waterproof zipper cloth.

Wherein, a plurality of through holes are provided on the waterproof zipper cloth at equal intervals, and the through holes penetrate at least a part of the waterproof zipper cloth and the core portion. In this way, compared with the conventional liquid-tight zipper, the molten resin material connecting the upper half tooth and the lower half tooth of the present invention can be closer to the inner side of the sprocket, so that the sprocket system can be made stronger The effect of combining with the waterproof zipper cloth.

Wherein, the through hole penetrates one-half of the core portion or is slightly smaller than one-half of the core portion. In this way, compared with the conventional liquid-tight zipper, the molten resin material connecting the upper half tooth and the lower half tooth of the present invention can be closer to the inner side of the sprocket, so that the sprocket system can be made stronger. The effect of combining with the waterproof zipper cloth.

The second surface of the tape has a core portion protruding from the second surface. In this way, the core portion has the effects of guiding and making the cloth tape easily placed in the pressing mold.

The first surface and the core of the second surface are opposite to each other. In this way, the core portion has the effects of guiding and making the cloth tape easily placed in the pressing mold.

Wherein, the core is partially protruded on the first surface and the second surface of the tape. The core part has the effects of guiding and making the cloth tape easily placed in the pressing mold.

A sprocket is shot corresponding to each of the through-hole systems, and the upper half of the sprocket and the lower half of the sprocket form a symmetry. In this way, the through-hole system can be accurately aligned at the central part of the sprocket, so that the formed waterproof zipper has a better liquid-tight effect.

The waterproof zipper of the present invention is composed of a plurality of sprocket teeth on the inner side surface of two waterproof zipper cloths, and the two waterproof zipper cloths have a slider, and the slider can make the plurality of sprocket teeth of the two waterproof zipper cloths. Opening and closing. In this way, the waterproof zipper of the present invention has a better liquid-tight effect, and the sprocket system can be firmly bonded to the waterproof zipper cloth, thereby greatly improving the product yield and practicality.

     〔this invention〕     

1‧‧‧ Zipper Cloth

1a‧‧‧first surface

1b‧‧‧Second surface

1c‧‧‧ inside

1d‧‧‧ outside

11‧‧‧ Core

12‧‧‧ extension

2‧‧‧ liquid-tight layer

21‧‧‧ abutting protrusion

3‧‧‧ Waterproof Chain Cloth

31‧‧‧through hole

32‧‧‧ slider

4‧‧‧ sprocket

     〔Usually〕     

7‧‧‧ Waterproof zipper

71‧‧‧ Ribbon Core

72‧‧‧ liquid-tight layer

73‧‧‧ sprocket

8‧‧‧ Zip strap

81‧‧‧ tape

82‧‧‧ Core

83‧‧‧ extension

84‧‧‧ liquid-tight layer

85‧‧‧ fins

86‧‧‧through hole

87‧‧‧ Sprocket

9‧‧‧ Liquid-tight Zipper

91‧‧‧ with component

92‧‧‧ Core

93‧‧‧Liquid tight layer

94‧‧‧ sprocket

Figure 1: Sectional view of the first conventional waterproof zipper and its meshing teeth.

Figure 2: Top view of the second conventional waterproof zipper when the sprocket teeth are engaged.

Figure 3: A perspective view of a third conventional waterproof zipper.

Fig. 4: A sectional view of a third conventional waterproof zipper and its meshing teeth.

Figure 5: A perspective view of a waterproof zipper cloth according to a first embodiment of the present invention.

Fig. 6 is a side sectional view of a waterproof zipper cloth according to a first embodiment of the present invention.

Fig. 7: A view showing the arrangement of through holes in the waterproof zipper shown in Fig. 6.

Fig. 8: A view showing a state where a sprocket is attached to the waterproof zipper cloth shown in Fig. 7.

FIG. 9 is a top view of the waterproof zipper according to the first embodiment of the present invention.

Fig. 10: A sectional view taken along the line I-I of the waterproof zipper shown in Fig. 9.

FIG. 11 is a perspective view of a waterproof zipper cloth according to a second embodiment of the present invention.

In order to make the above and other objects, features, and advantages of the present invention more comprehensible, the following describes the preferred embodiments of the present invention and the accompanying drawings in detail, as follows:

Please refer to FIGS. 5 and 6, which are the first embodiment of the zipper cloth of the present invention. The zipper cloth includes a tape 1 and a liquid-tight layer 2. The liquid-tight layer 2 covers each of the tape 1. Surface layer.

The cloth tape 1 is a belt-shaped body woven or knitted with fibers. The cloth tape 1 has a first surface 1a and a second surface 1b. The first surface 1a of the cloth tape 1 has a core 11. The core portion 11 protrudes from the first surface 1 a, the core portion 11 is adjacent to the inner side surface 1 c of the tape 1, and an extension portion 12 is formed between the core portion 11 and the inner side surface 1 c. The two surfaces 1b form a plane.

The liquid-tight layer 2 is formed of an elastomer resin material. The liquid-tight layer 2 is coated on the first surface 1a, the second surface 1b, the core 11 of the tape 1 by coating or the like, and connects the The inner surface 1c and the outer surface 1d of the first surface 1a and the second surface 1b make the tape 1 completely liquid-tight.

Please refer to FIG. 6, since the tape 1 of the present invention has the core portion 11, when the liquid-tight layer 2 is to be covered on the tape 1, the core portion 11 can guide and make the cloth The belt 1 can be easily positioned in the groove-shaped cavity of the pressing mold. In addition, when the molten polymer material is coated on the surface layer of the extension portion 13, the waterproof layer 2 can be formed relatively flat. The surface is aligned to form a waterproof zipper cloth 3, and the waterproof zipper cloth 3 has no deformation problem. For example, without limitation, the waterproof zipper cloth 3 of this embodiment may be made by the extrusion method; that is, the first and second surfaces 1a and 1b of the tape 1 may be continuously coated with the molten elastomer material. And an inner side surface 1c and an outer side surface 1d connecting the first surface 1a and the second surface 1b.

Please refer to FIG. 7 and FIG. 8. According to the foregoing structure, when the present invention intends to form a plurality of sprocket elements 4 on the waterproof zipper fabric 3, a plurality of through holes 31 may be provided on the waterproof zipper fabric 3 at equal intervals. The through hole 31 penetrates at least a part of the waterproof zipper cloth 3 and the core portion 11. The through hole 31 preferably penetrates one-half of the core portion 11 or is slightly smaller than one-half of the core portion 11. In this way, when a plurality of fastener elements 4 are formed on the waterproof zipper cloth 3, a molten resin material can flow and fill the through-hole 31, so that the upper half teeth and the lower half teeth of the fastener element 4 can be connected by the through-hole 31. The upper half of the sprocket 4 and the lower half of the sprocket 4 form a symmetrical arrangement. In this way, the through-hole 31 can be accurately positioned at the center of the sprocket 4 without the upper and lower halves. The problem of asymmetrical misalignment of teeth will have better results. In addition, since the second surface 1b of the tape 1 of the present invention forms a flat surface and has the extension portion 12, the tape 1 can be accurately positioned on the mold by the second surface 1b and the extension portion 12. A mold cavity to form the sprocket 4; and since the through-hole 31 penetrates at least a part of the waterproof zipper cloth 3 and the core portion 11, a molten resin material connecting the upper half tooth and the lower half tooth It is close to the inner side of the sprocket 4. In this way, the sprocket 4 can be more firmly coupled to the waterproof zipper cloth 3.

Please refer to FIG. 9, which is the two waterproof zipper cloths 3 having the plurality of sprocket teeth 4 butt jointed by the ends of the plurality of sprocket teeth 4, and a slider 32 is threaded through the two waterproof zippers. The cloth 3 is used for opening and closing several chain teeth 4 of the two waterproof zipper cloths 3 to form an open zipper or a closed zipper.

Please refer to FIG. 10, when a plurality of fastener elements 4 of the zipper are meshed to be closed, the two waterproof zipper cloths 3 can be opposed and abutted by the abutment protrusions 21, thereby preventing liquid from flowing from the phase Leaks between the meshing sprocket 4 and because the liquid-tight layer 2 has completely covered the tape 1 and because the upper half of the sprocket 4 forms a symmetrical arrangement with the lower half of the tooth system, as such, the The through holes 31 are precisely aligned at the center of the sprocket 4, so there is no problem of asymmetrical misalignment of the upper and lower teeth, and the sprocket 4 will be firmly combined with the waterproof zipper cloth 3. And has a better effect of preventing water leakage; furthermore, since the through hole 31 penetrates at least a part of the waterproof zipper cloth 3 and the core portion 11, therefore, the upper half tooth and the lower half tooth are connected The molten resin material is close to the inner side of the sprocket 4. In this way, the sprocket 4 can be more firmly bonded to the waterproof zipper cloth 3.

Please refer to FIG. 11, which is a second embodiment of the waterproof chain cloth 3 of the present invention. In this embodiment, the core portion 11 may partially protrude on the first surface of the tape 1. 1a and the second surface 1b, or each of the first surface 1a and the second surface 1b of the tape 1 has the core portion 11, so that each of the first surface 1a and the second surface 1b of the tape 1 has a芯 部 11。 The core portion 11. The core portion 11 of the first surface 1a and the second surface 1b is preferably opposite to each other, and the core portion 11 protruding on the second surface 1b can be placed in a groove of a lower mold for forming the sprocket 4 Among the slot-shaped mold cavities. In this way, when the molten polymer material is coated on the surface layer of the extension portion 13, the waterproof layer 2 can be easily handled and the flush surface can be formed to form a waterproof zipper cloth 3, and the waterproof zipper cloth 3No deformation problems. And, since the through hole 31 on the tape 1 also penetrates at least a part of the waterproof zipper cloth 3 and the core portion 11, and the upper half teeth of the sprocket 4 and the lower half teeth form a symmetrical arrangement, In this way, the through hole 31 can also be accurately positioned at the center of the sprocket 4 without the problem of asymmetrical misalignment of the upper and lower teeth, and has a better effect of preventing water leakage; Furthermore, since the through hole 31 penetrates at least a part of the waterproof zipper cloth 3 and the core portion 11, the molten resin material connecting the upper half tooth and the lower half tooth is close to the inner side of the sprocket 4. 1c. In this way, the sprocket 4 can be bonded to the waterproof zipper cloth 3 more securely.

In summary, the waterproof zipper cloth and the waterproof zipper of the present invention have the core portion, and the waterproof zipper cloth of the present invention has the core portion. Therefore, the waterproof zipper is arranged in the pressing mold. The core has the function of guiding and making the tape easy to be placed in the pressing mold, and when the molten polymer material covers the surface layer of the tape, the waterproof layer can form a relatively flat surface. To form a waterproof zipper cloth; and because the upper half of the sprocket and the lower half of the sprocket form a symmetrical arrangement, in this way, the through-hole system can be accurately positioned in the central part of the sprocket, which has a better Liquid-tight effect; furthermore, since the through-hole system penetrates at least a part of the core portion, the molten resin material connecting the upper half tooth and the lower half tooth is close to the inner side of the sprocket, so, The sprocket system can be firmly bonded to the waterproof zipper cloth, which can greatly improve product yield and practicality.

Although the present invention has been disclosed using the above-mentioned preferred embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make various changes and modifications to the above embodiments without departing from the spirit and scope of the present invention. The technical scope protected by the invention, so the scope of protection of the present invention shall be determined by the scope of the appended patent application.

Claims (8)

    A waterproof zipper cloth includes: a cloth tape having a first surface and a second surface; a first surface of the cloth tape has a core protruding from the first surface, and the core is adjacent to the cloth tape; An inner side surface, and an extension is formed between the core portion and the inner side surface, the second surface forms a plane; and a liquid-tight layer covers the first surface, the second surface, the core portion and The inner surface and the outer surface of the first surface are connected to the second surface.         The waterproof zipper cloth according to item 1 of the scope of patent application, wherein the waterproof zipper cloth is provided with a plurality of through holes at equal intervals, and the through holes penetrate at least a part of the waterproof zipper cloth and the core portion.         The waterproof zipper cloth according to item 2 of the scope of patent application, wherein the through hole penetrates one-half of the core portion or is slightly smaller than one-half of the core portion.         The waterproof zipper cloth according to item 1 of the patent application scope, wherein the second surface of the tape has a core portion protruding from the second surface.         The waterproof zipper cloth according to item 4 of the scope of patent application, wherein the first surface and the core of the second surface are opposite to each other.         The waterproof zipper cloth according to item 5 of the patent application scope, wherein the core portion is partially protruded on the first surface and the second surface of the tape.         The waterproof zipper cloth according to any one of the items 1 to 6 of the scope of patent application, wherein a sprocket is shot corresponding to each of the through-hole systems, and the upper half of the sprocket and the lower half of the sprocket form a symmetry.         A waterproof zipper is provided with the second waterproof zipper cloth according to item 7, the inner side surface of the two waterproof zipper cloths each has a plurality of sprocket teeth, and the two waterproof zipper cloths have a slider. The plurality of chain teeth of the two waterproof zipper cloths are opened and closed.