JPS6491Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) In the present invention, a row of left and right teeth with the heads in an occlusal state is formed on the opposing inner edges of the left and right tapes, and the row of right and left teeth is opened in occlusion by a slider. This relates to a slide fastener that can be removed at will.

(Prior Art) Conventionally, this type of slide fastener, for example,
When attaching to the opening/closing part of clothing or packages that require watertightness such as raincoats, a thermoplastic film is interposed between the slide fastener tape and the attachment fabric, and both parts are welded together by heating. things are being done.

(Problems to be solved by the invention) However, with the above-mentioned conventional heat-welded structure, not only is the process of interposing the plastic film troublesome and inefficient, but also the film may be torn or bent in the middle. There are likely to be some areas that are not welded. Furthermore, since the above-mentioned thermoplastic plastic film is soft, when the film is superposed on the inside of the top surface of the tape where it passes through the slider, the sliding surface of the slider is attracted to the film surface on the top surface of the tape when the slider moves to open and close. This poses a problem in that sliding resistance increases and opening and closing of the slider becomes difficult.

In view of the above points, the present invention provides a slide fastener that makes it easy to heat-weld the slide fastener tape to the mounting fabric, and that allows the slider to be easily opened and closed despite the presence of the thermoplastic layer on the top surface of the tape. It is intended to.

(Means for Solving the Problems) In order to achieve the above object, the slide fastener of the present invention has densely embossed outer surfaces on at least one of the front and back sides of the base fabric of the left and right tapes. It is characterized by being integrally formed with a thermoplastic plastic layer having an uneven shape.

(Example) Next, the present invention will be explained based on the example shown in the drawings.

FIG. 1 is a plan view of the slide fastener according to the present invention, FIG. 2 is an enlarged cross-sectional view showing the slide fastener in an attached state, and FIG. 3 is an enlarged cross-sectional view of the tape.

As shown in FIG. 1, the slide fastener 1 of the embodiment has a
Four rows of left and right plastic coil-shaped interlocking teeth with the head in an occlusal state, which can be freely occlusally and disengaged by a slider 3, are sewn with sewing thread 5, and tapes are placed above and below the four rows of interlocking teeth. 2, 2 has a basic structure in which an upper stop 6 and a lower stop 7 are provided.

Thus, the tape 2 has a shape in which a thermoplastic plastic layer 9 such as vinyl chloride is integrally formed in advance on the entire surface of a base fabric 8 made of various natural fibers or chemical fibers. Embossed concavo-convex shapes 9a are densely formed on the entire outer surface of the plastic layer 9.

In the case of vinyl chloride, the plastic layer 9 may have a thickness of about 70 μm, and the uneven shape 9a can be any shape such as a laser pattern, a cloth pattern, a geometric pattern, etc.

Further, a colored sheet, a printed sheet, or the like may be sandwiched between the plastic layer 9 and the base fabric 8.

Furthermore, the plastic layer 9 may be formed on the back surface of the base fabric 8, or may be formed on both the front and back surfaces.

After sliding the slider 3 to open and close the slide fastener 1, the outer surface of the plastic layer 9 for welding the surface of the tape 2 has embossed concavo-convex shapes 9a densely formed thereon. , the sliding area with the slider 3 is reduced, and the presence of the recessed portion eliminates problems such as adsorption, the sliding resistance of the slider 3 is small, and its opening/closing operation is light.

In addition, in order to attach the slide fastener 1 to the left and right mounting fabric parts 10, 10 of the opening/closing part of clothing such as a raincoat or bag, the mounting fabric parts 10, 10 are attached to the plastic layer 9 of the tape 2, 2.
The material may be polymerized and thermally welded to the surface on the formation side. In this case, the plastic layer 9 has been previously formed on the entire surface of the tape 2, so that
There is no risk that the plastic layer 9 will shift or tear during the welding process, and the welding process is easy.

FIG. 4 is a diagram illustrating the production of the tape used in the present invention.

To manufacture the above tape, as shown in FIG. 4, the base fabric 8 of the tape and the thermoplastic sheet 9' are passed between an embossing roll 10 and a clamping roll 11 to polymerize and heat them. Accordingly, tape 2 is continuously manufactured.

Then, the plastic sheet 9' is polymerized and welded to the surface of the base fabric 8 to form a plastic layer 9 integrally, and on the outer surface of the plastic layer 9,
The tape 2 is manufactured by forming an embossed uneven shape along the uneven pattern formed on the surface of the embossing roll 10.

The slide fastener 1 is manufactured by cutting this tape 2 into narrow widths or using it as it is wide.

(Function and Effect) As explained above, the slide fastener according to the present invention has a thermoplastic plastic layer 9 integrally formed on at least one surface of the base fabric 8 of the tape. Unlike the method of welding by interposing a plastic sheet, there are no problems such as the plastic sheet being torn or partially protruding from the welded area, and the welding is reliable. Therefore, the appearance is good, and the heat welding work to the mounting fabric part is also facilitated.

Furthermore, since the base fabric 8 is reinforced by the plastic layer 9, the edges of the tape 2 will not fray or the sewing thread 5 will be prevented from slipping.
The waterproof function is also ensured.

Furthermore, since the outer surface of the thermoplastic plastic layer 9 is formed with a densely embossed uneven shape 9a, it not only looks good but also reduces sliding friction with the slider 3. This has excellent practical effects, such as making it easier to open and close the slider in a slide fastener with tape.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the slide fastener according to the present invention, FIG. 2 is an enlarged cross-sectional view showing the attached state, FIG. 3 is an enlarged cross-sectional view of the tape, and FIG.
It is a figure explaining the manufacturing process of a tape. 1...Slide fastener, 2...Tape, 3
...Slider, 4...Front teeth, 8...Base cloth, 9...
...Plastic layer, 9a...Uneven shape.

Claims (1)

[Scope of Claim for Utility Model Registration] A slide fastener in which a row of left and right teeth with the heads in an occlusal state is formed on the opposing inner edges of the left and right tapes, and the row of left and right teeth can be opened and closed by a slider, wherein the left and right tapes include: A slide fastener characterized in that a thermoplastic plastic layer having densely embossed irregularities formed on the outer surface is integrally formed on at least one surface of the base fabric.