JPS5813782A - Production of water-proof and water repellent fabric for high frequency weaving - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] - The present invention relates to a method for producing water-repellent fabric O for high-frequency sewing. - Conventionally, in order to produce water-repellent fabric products such as tents and canopies, it is necessary to cut cicadas to a predetermined size. Stain the water-repellent fabric piece with sewing thread! 90 In this case, there is a drawback that water leaks from the needle hole. It was necessary to apply a mechebe to the 0 stitches.

In order to eliminate the above-mentioned drawbacks of conventional electrosynthetic sewing, high-frequency synthetic metals have been developed and are becoming popular. In this high-frequency stitching, a part of the fabric itself is melted and bonded using high-frequency waves, or a high-frequency adhesive tape is inserted between two pieces of fabric.
The two pieces of fabric are bonded together by high-frequency melting. However, in the latter case, if the anti-mold water treatment agent applied to the fabric is acrylic resin, chlorinated polyethylene resin, silicone resin, fluororesin, or silicone salt compound, these repellents The adhesion between the water fabric and the high-frequency adhesive tape was low, and it was not possible to obtain a satisfactory rounding and stitching adhesive strength. Therefore, when performing high-frequency suture adhesion using the conventional method, there were limitations on the types of anti-mold water treatment agents that can be applied to fabrics.◇An object of the present invention is to enable high-frequency sutures regardless of the type of anti-mold water treatment agent. An object of the present invention is to provide a method for producing a water-repellent fabric.

The method for producing a water-repellent fabric for high side wave sewing of the present invention involves applying anti-mildew water treatment to the fabric! 1m! a step of applying anti-mold water treatment to only the remaining 6 parts of the fabric, excluding the part to be sewn; and a step of pasting a hydrophobic polymer sheet that can be melted and bonded by high frequency to the part to be sewn. There is no particular limitation on the type of fabric base (hereinafter referred to as base fabric) used in the method of the present invention, and it is characterized by comprising the following: Any type of fabric can be used as long as it is made of water, such as cotton, water-insoluble alcohol fiber,
Fabrics, fabrics, composite fabrics, etc. made of polyester fibers, nylon 66 fibers, nylon 66 fibers, polypyrene fibers, polyacrylic fibers, etc. can be used.

There are no particular limitations on the type of anti-mold water treatment agent applied to the base fabric, and all conventional water treatment agents for pots can be used, such as polyvinyl chloride.

Polyvinylidene chloride/reacrylic acid ester.

Coating with OS water-based resin such as chlorinated I-lyeethylene, impregnation or coating with silicone resin, fluororesin (/lytetrafluoro-tetraethylene, etc.), Y-ru-dime salt compound, metal soap, lye, camphor, etc. - In order to leave the part of the base fabric to be sewn without applying anti-mold water treatment, a coating that can be used to define the part to which the water repellent agent is applied is attached with a glue; - a tendering device.

Roll printing machines, screen printing machines, etc. can be used.゛Although there are no particular limitations on the shape and dimensions of the part of the base fabric to be sewn, it is usually applied with a width of 0.5 to 51 mm on both sides of the edge of the base fabric or only on the 41 side to be joined with the adhesive tape. Adhesive polymer sheets (K) are provided, but they do not have any particular properties that can be melted and bonded to fabrics by high-frequency irradiation, usually vinyl chloride, 4-lyamide, ′-Liurethane,
4-lyester, [♂♂N-vinyl acetate copolymer, ', and ethylene-vinyl acetate copolymer. There are no restrictions on the shape, width, thickness, length i, etc. of the adhesive tape, and it may be of any kind as long as it is practical, but generally it is 10 to 50 wm0 width. It is preferable that the thickness is 0.05- or more. In the method of the present invention, after the above-mentioned preventive A water treatment step is applied only to the remaining portion of the fabric excluding the portion to be sewn,
This portion to be sewn may be subjected to the polymer sheet pasting process as described above.

In this case, an adhesive is applied in dots or lines on the adhesive side of the polymer tape, and the polymer sheet is attached to the part of the fabric to be sewn through the adhesive. In the method of the present invention, after the polymer sheet is attached to the portion of the fabric to be sewn, the remaining portion of the fabric may be subjected to a water-repellent treatment. In this case, it is undesirable that an anti-mold water treatment agent that would adversely affect the adhesive strength of one high-frequency seam be allowed to enter between the pasted nine polymer □ sheet and the fabric. Therefore, it is necessary that the polymer sheet is bound to the part of the fabric to be sewn in such a way that the water-repellent treatment solution does not enter.This binding may be done using an adhesive, but This adhesive is 1. It is necessary to use a material that does not reduce the adhesive strength in high-frequency suturing, or one that causes less reduction.

Since the water-repellent fabric produced by the method of the present invention is coated with a water-repellent agent on the seam adhesive surface, its adhesion to the molten glue is extremely strong. . Furthermore, since the adhesive tape is made of a hydrophobic polymer, the sutured adhesive portion can exhibit excellent water resistance.

In order to distribute the molten hydrophobic polymer over the entire surface of the stitched area of the fabric and obtain complete anti-mildew properties, one method is to use a polymer sheet with an area larger than the area of the stitched area. It is desirable to use it so that the part protrudes outward from the suture surface. For example, if it is planned to overlap the edge portions of the fabric pieces over the width 31 and stitch and bond them,
It is preferable that this polymer sheet having a suture adhesive partial pressure width of 51 is placed and attached so that both side edges of the sheet protrude outside the area to be sutured by 1cg.0 Fabric obtained by the method of the present invention After applying high-frequency irradiation and suturing the
Any remaining polymer sheet protruding from the seam is typically removed to form a smooth seam, but of course this need not be removed.

Even if a part of the fabric is not subjected to waterproof treatment on both sides of the fabric as the part to be sewn, and a polymer sheet is attached to only one side, at least the surface to be sewn is treated with a hydrophobic polymer. There is no particular problem as a whole because it is made water repellent by combining. However, if necessary, a polymer sheet may be layered on the non-adhesive surface, and the polymer sheet may be melted and adhered by high frequency treatment, thereby providing water-repellent treatment. The appearance of the water fabric product becomes more favorable.

When a particularly high degree of water repellency is required, such as a stent, after the high-frequency suturing treatment, the obtained fabric product is further treated with a water repellent agent, such as by dipping the entire surface, to further improve the water repellency of the product. It can also be increased.

The method of the present invention enables high-frequency stitching of water-repellent fabrics regardless of the type of water-repellent treatment agent, and its practical utility is extremely high.

The method of the present invention will be further explained below with reference to Examples.

Example A plain woven fabric having the following structure was manufactured using vinyl rich long fiber single yarn (.100 denier) as the warp and weft.

100D/1X100D/1 58 pieces/2B, 4m x 61 pieces/254 wm Using the above fabric as a base fabric, use a coater to apply a treatment solution with the following composition on both sides, leaving a width of 3 cIL at both ends using a coater. It was applied.

Acrylic acid ester resin (20 titolene solution)
100 parts crosslinking agent (toluene diisocyanate,
2#30-Toluene solution) Nogurafiy (m, p, = 66℃)
2〃Cobalt octylate 10
〃Toluene 3 Q/
/ When this coating layer was dried, the amount of dried coating layer was about I
G. The water-repellent fabric obtained in this way is cut into desired dimensions, and the two-sided piece is attached to the part to be sewn (polymer The sheets are stacked so that the adhesive parts) are facing each other, and an output of 2 kW and a frequency of 4 is applied to this stacked part.
High frequency processing using a high frequency oscillator of 0.68 Wm*
Apply for 90 seconds After this suture adhesive treatment, remove the remaining sheets protruding from the overlapping area.9.

The seamed portion of the resulting nine-sewn water-repellent fabric exhibited sufficient water-repellent properties and adhesive strength for practical use.

As mentioned above, since the large width adhesive tape was sewn and glued so that it protruded from the seam adhesive surface, the parts of the fabric that were not treated with waterproofing were covered with melted adhesive tape fK.
90 Furthermore, if the above-mentioned sutured product is spray-coated with a silicone-based water repellent, even the non-adhesive surface that has not been subjected to water-proofing treatment can be used for practical purposes. Separately, the above operation was repeated, and before the high-frequency treatment, the water-repellent treatment agent was applied to the non-adhesive surface that had been subjected to water-repellent treatment and did not get wet. Place a colored adhesive tape having the same color as the
After high-frequency treatment, this part also shows the same color and water resistance as the other parts.

patent applicant Chioka Textile Co., Ltd. patent application agent Patent attorney Akira Aoki Patent attorney Kazuyuki Nishidate Patent attorney Akira Yamaguchi

Claims (1)

[Scope of Claims] 1. Applying anti-mold water treatment to the fabric Kmj, excluding the part scheduled to be sewn of the ζO fabric, applying anti-mold water treatment only to the remaining part, and applying high frequency to the said part scheduled to be sewn. 1) A process for producing a high-frequency sewn, water-sprinkled fabric comprising: 1) attaching a melt-bondable hydrophobic polymer sheet; and 1) mold-proof water-sprinkling by removing both the front and back surfaces of the portion of the fabric to be sewn. The method according to claim 1, wherein a polymer sheet is attached to one of the two surfaces, and a polymer sheet is attached to one of the two surfaces. A method according to claim o*m*1, in which a water-repellent coating is applied by removing the adhered IJO stain. 4. The method according to claim 1, wherein the width of the polymer sheet is larger than the width of the portion to be sewn. 5. Attaching the polymer sheet after the anti-mold water treatment process li. 6. The method according to claim 1, wherein the anti-mold water treatment step is performed after the polymer sheet adhesion step.