JP2000175712A - Hook-and-loop fastener base material sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lead the advantage of detachable mechanism of a hook-and-loop fastener into various film products by lining a hook-and-loop fastener tape with a fusing thermoplastic resin film. SOLUTION: A fusing thermoplastic resin film 3 with the same degree of fusing point as the fusing point of a thermoplastic resin base material sheet to which a hook-and-loop fastener tape 1 is fusion-fixed, is laminated on the back face of either one of a pair of male and female resin hook-and-loop fastener tapes 1 made of a thermoplastic resin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface fastener base sheet which can be attached to a thermoplastic resin base sheet by heat fusion. Specifically, in order to provide a surface fastener (trade name: Velcro) on a thermoplastic resin base sheet used for a film product, the thermoplastic resin base sheet is provided on either one of the male and female backs of the surface fastener. The present invention relates to a hook-and-loop fastener base sheet backed with a fusible film.

[0002]

2. Description of the Related Art Attachment of a hook-and-loop fastener to a thermoplastic resin base sheet to impart a detachable mechanism to the thermoplastic resin base sheet has hardly been put to practical use. Normally, a hook-and-loop fastener (trade name: Velcro) is, for example, a female surface having a large number of flocks, such as a loop shape, and a male surface having a flocks, such as a key shape or a bell shape, which is entangled with the loop shape. It works with the desorption mechanism. The present invention relates to a hook-and-loop fastener base sheet for a product having a detachable portion which can be used as a material base of a thermoplastic resin film product having an opening / closing mechanism or a detachable mechanism for a thermoplastic resin packaging bag, a thermoplastic resin file or the like. is there. In order to apply such a surface fastener to a detachable mechanism of a thermoplastic resin product, it was difficult to firmly fix the surface fastener to the surface of the thermoplastic resin product.

[0003]

Since the hook-and-loop fastener requires elasticity and rigidity in a thin flocked portion, the hook-and-loop fastener is made of a high melting point resin such as nylon or polyester having a high melting point. . Accordingly, in order to fix the back surface of the hook-and-loop fastener and the thermoplastic resin base material sheet generally having a lower melting point than the hook-and-loop fastener by fusion, the melting operation of the material of the fastener is high, so that the fusing operation becomes difficult. Furthermore, since the back surface of the hook-and-loop fastener is not smooth, it is more difficult to fuse and fix the back fastener with a resin film having a low melting point. The present invention
An object of the present invention is to provide a product capable of detachably attaching a thermoplastic resin base sheet by firmly fixing a surface fastener to a surface of a thermoplastic resin base sheet.

[0004]

Means for Solving the Problems As a result of earnest studies, the present inventors have found that the back surface of the surface fastener is lined with a resin film having a melting point similar to that of the thermoplastic resin base sheet to back the back surface of the surface fastener. Thus, the invention of a surface fastener base material sheet in which the backing film and the back surface of the surface fastener can be fixed by an adhesive such as a dry lamination method has been completed. The present invention includes the following items. (1) A thermoplastic resin having a melting point similar to that of a thermoplastic resin base sheet to which the surface fastener tape is fused and fixed to at least one of the back surfaces of a pair of male and female thermoplastic resin surface fastener tapes. A hook-and-loop fastener base material sheet wherein a fusion film is laminated by a lamination method. (2) A thermoplastic resin film of the same quality as a thermoplastic resin base sheet to which a hook-and-loop fastener tape is fusion-fixed is laminated by a lamination method.
The hook-and-loop fastener base material sheet according to the above item. (3) The thermoplastic resin base sheet to which the hook-and-loop fastener tape is fused and fixed is made of a different kind of resin, the surface of which is roughened and bonded by a lamination method. The surface fastener base material sheet according to claim 1. (4) The hook-and-loop fastener base sheet according to (1), (2) or (3), wherein the thermoplastic resin film for fusing is a polyolefin film or a vinyl chloride resin film. (5) The surface fastener base material sheet according to (3), wherein the surface roughening treatment of the thermoplastic resin film for fusion is corona discharge treatment. (6) The first method in which the lamination method is dry lamination,
The hook-and-loop fastener substrate sheet according to 2, 3, 4 or 5.

The surface fastener base sheet of the present invention can be attached to a desired thermoplastic resin base sheet by heat fusion. When the surface fastener base material sheet of the present invention is attached to a thermoplastic resin base material sheet, a thermoplastic resin sheet product and a resin molded product having a laminated structure of surface fastener / fusing thermoplastic resin film / thermoplastic resin product; For example, it can be applied to sheet products such as packaging bags, packaging cases, tents and cover sheets, and various types of products such as clothing and molded products. In these products,
The article portion having the three-layer structure has a zipper surface that can be freely attached to and detached from a surface fastener surface attached to the surface of another article portion. The present invention is used in a process of manufacturing such a resin product, and firstly, a product in which a hook-and-loop fastener back surface and a thermoplastic resin film for fusion are laminated and laminated is desired in the process of manufacturing the product. Thereby, it can be appropriately fused to the thermoplastic resin base sheet. The surface fastener base sheet of the present invention is always used by being fused to a thermoplastic resin base sheet. In thermoplastic resin base sheet products using this, the hook-and-loop fastener is fixed to the thermoplastic resin base sheet with the zipper side facing up, and between the back surface of the hook-and-loop fastener and the thermoplastic resin base sheet And a three-layer structure in which a thermoplastic resin film for fusion made of a resin having a similar melting point to the resin of the base sheet is interposed.

The first feature of the present invention is that a thermoplastic resin film for fusion is laminated between a back surface of a hook-and-loop fastener and a thermoplastic resin base sheet in a three-layer structure in use. The second feature is that the lamination method of the surface fastener and the thermoplastic resin film for fusion is a lamination method. The thermoplastic resin film for fusing used in the present invention needs to be a thermoplastic resin film having a melting point similar to that of the thermoplastic resin base sheet to which the surface fastener tape is fused and fixed. And, as a resin film having the same melting point, when using a resin film of the same quality,
In some cases, a thermoplastic resin film having a different melting point, which is a different resin, is used. In the present invention, when a homogeneous resin film is used as the thermoplastic resin film for fusion, it can be thermally fused with the thermoplastic resin base sheet as it is. In the present invention, when using a heterogeneous resin film as the thermoplastic resin film to be fused, it can be thermally fused with the thermoplastic resin base sheet as it is, but use a surface-roughened one. It is more preferable that the fusion becomes stronger. As the surface roughening treatment,
Corona discharge treatment is desirable from the viewpoint of the strength of the fused portion. In the present invention, the melting point of the thermoplastic resin film and the melting point of the same degree as the thermoplastic resin base sheet is, for example, the difference from the melting point of the base sheet is within 80 ° C., preferably within 40 ° C., more preferably within 20 ° C. It must be a resin with a melting point within ° C. Further, when the thermoplastic resin base sheet and the surface fastener base sheet of the present invention are fused, heat is not transmitted from the fastener surface, and heat sealing is performed from the thermoplastic resin base sheet side. In order to perform the attaching step smoothly, it is desirable that the melting point of the thermoplastic resin film to be fused does not exceed the melting point of the thermoplastic resin base sheet, that is, 10 ° C., preferably the melting point of the thermoplastic resin base sheet. Even if the melting point of the thermoplastic resin film for fusion is low, if the difference in the melting point is 80 ° C. or more, the fusion step cannot be performed smoothly, and the fusion of the high melting point resin is insufficient, and the fusion is performed. Part strength is low.

The hook-and-loop fastener tape used in the present invention has a surface made of planted monofilaments having a high melting point and high rigidity such as nylon and polyester, and the back surface has a fabric woven structure of the same resin monofilament.
The hook-and-loop fastener tape is 5 to 50 mm, preferably 10 to
It is a long tape having a width of 20 mm. The surface fastener base material sheet of the present invention can be used after being cut into an appropriate length depending on the application. As the surface fastener tape used in the present invention, at least one of a pair of thermoplastic resin surface fastener tapes of both sexes is used. When only one of the male and female hook-and-loop fastener tapes is used for the thermoplastic resin base sheet and the other is fixed to the surface or wall of a molded product other than the thermoplastic resin base sheet, for example, the other hook-and-loop fastener tape is used as an adhesive. Or, by fixing to a predetermined location other than the thermoplastic resin base sheet, for example, to the surface or wall surface of a molded article, and between the sheet to which the surface fastener base sheet of the present invention is fused and fixed and other articles It is used by giving a detachable function. As the thermoplastic resin base sheet to which the surface fastener base sheet of the present invention is fused and fixed, it is used as a material base material for various sheet products, particularly for packaging bags, various header base material sheets, and mount sheets. Sheets or films can be used. As the thermoplastic resin base sheet, a thermoplastic resin base sheet used for a film or a product formed from the sheet can be used without any particular limitation.
In particular, as a general-purpose film or sheet, a polyolefin-based film or sheet and a vinyl chloride resin-based film or sheet can be suitably used.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIGS. 1 and 2, the surface fastener base material sheet of the present invention has a surface fastener flocked portion 2 on the front surface and a thermoplastic resin film 3 for fusion on the back surface. Laminated. The thermoplastic resin film 3 for fusion used in the present invention is formed of a thermoplastic resin having a melting point similar to that of the thermoplastic resin base sheet to which the surface fastener tape is to be fusion-fixed. The thermoplastic resin film 3 for fusion can be laminated on the back surface of the hook-and-loop fastener or the backing resin film 4 by applying a small amount of an adhesive or laminating the two films in a semi-molten state. In the embodiment shown in FIG. 1, the back surface of the hook-and-loop fastener tape 1 is not sufficiently smooth, so that the back surface is backed with a backing resin film 4.
In FIG. 1, a backing resin film 4 and a thermoplastic resin film 3 for lamination are laminated to form a surface fastener base material sheet. The lamination of the surface fastener base material sheet of the present invention can be performed by a pressure roll from the side of the thermoplastic resin film tape to be fused.

The surface fastener base material sheet of the present invention is obtained by laminating a long thermoplastic resin film tape F for fusion and a long surface fastener tape 1 with a guide roll G on a crimping table H as shown in FIG. The long-time fusion thermoplastic resin film tape F and the hook-and-loop fastener tape 1 are continuously pressed by pressure bonding by the rotating hot roll S as shown, and both are laminated. As this lamination method, there are a wet lamination method and a dry lamination method,
Dry lamination is particularly desirable. The aspect of use of the surface fastener base sheet of the present invention can be used for various applications depending on the use form of the thermoplastic resin base sheet to which the surface fastener base sheet of the present invention is fused and fixed.
For example, when applied to a known continuous bag making process and continuously supplied instead of an adhesive tape with release paper which is useful for a bag opening / closing mechanism, there is a male hook-and-loop fastener 5 at an opening edge 8 in FIG. The sealing piece 7 provided with the female hook-and-loop fastener 6 at the tip can be obtained. In this way, a packaging bag having an openable and closable opening can be manufactured by the hook-and-loop fastener attaching / detaching mechanism. In the case of the present invention in which the male hook-and-loop fastener 5 is provided on the upper back side of the packaging bag, the female hook-and-loop fastener is attached to an arbitrary position on the wall surface or the side of the furniture with an adhesive. The packaging bag can be stably locked for a long time. Such a method of wall-locking a resin product has an advantage that it does not drop naturally unlike the conventional method of locking an adhesive tape. The base sheet of the present invention can make many resin products other than bags detachable on the surface of other articles. The surface fastener base material sheet of the present invention is capable of being attached to a thermoplastic resin base material sheet of various types of products by being fused to thermoplastic resin base material sheets of various types of products.

[0010]

According to the present invention, the advantage of the attachment / detachment mechanism of the hook-and-loop fastener can be introduced into various film products by backing with a thermoplastic resin film for fusing. Is big. Moreover, since the surface fastener base material sheet of the present invention can be appropriately cut and used, it can be applied as a base material sheet in a conventional continuous bag making process or the like.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a cross-sectional structure of a surface fastener base material sheet of the present invention.

FIG. 2 is a front plan view of the surface fastener base material sheet of the present invention.

FIG. 3 is a lamination process diagram of the surface fastener base material sheet of the present invention.

FIG. 4 is a cross-sectional view a and a plan view b of a packaging bag on which the surface fastener base material sheet of the present invention is mounted.

[Explanation of symbols]

 Reference Signs List 1 surface fastener tape 2 surface fastener flocking part 3 thermoplastic resin film for fusion 4 backing resin film 5 male type fastener 6 female type fastener 7 sealing piece 8 opening edge F long fusion thermoplastic resin film tape S heat roll G Guide roll H Crimp table

Claims (6)

[Claims] 1. A thermoplastic resin having a melting point similar to that of a thermoplastic resin base sheet to which a surface fastener tape is fused and fixed on at least one back surface of a pair of male and female thermoplastic resin surface fastener tapes. A hook-and-loop fastener base sheet, wherein a fusion film made of the above is laminated by a lamination method. 2. A surface fastener base material according to claim 1, wherein a thermoplastic resin film of the same quality as the thermoplastic resin base sheet to which the surface fastener tape is fused and fixed is laminated by a lamination method. Sheet. 3. A thermoplastic resin base sheet to which a hook-and-loop fastener tape is fused and fixed, wherein a sheet of a different kind of resin, whose surface is roughened, is bonded by a lamination method. The surface fastener base material sheet according to claim 1. 4. The surface fastener base sheet according to claim 1, wherein the thermoplastic resin film to be fused is a polyolefin film or a vinyl chloride resin film. 5. The surface fastener base material sheet according to claim 3, wherein the surface roughening treatment of the thermoplastic resin film to be fused is a corona discharge treatment. 6. The surface fastener base sheet according to claim 1, wherein the lamination method is dry lamination.