JPH0321164B2 - - Google Patents

Description

[Detailed description of the invention]

(Industrial Application Field) The present invention relates to a method for manufacturing cloth shoes having a cloth covering having high water and oil repellency. (Prior Art) Cloth covers used for cloth shoes have a unique texture and appearance, and are therefore widely used. However, because they are made of cloth, they are inferior in water and oil repellency, and there has been a strong desire for cloth shoes to have this ability. For this reason, conventional methods include applying water- and oil-repellent treatment to the shoe material in advance to obtain water- and oil-repellent shoes, or treating the shoes with a solvent-based water- and oil-repellent agent by spraying or the like after the shoes are formed. A method of obtaining water- and oil-repellent shoes was investigated. (Problems to be Solved by the Invention) However, the shoes obtained by these methods were not fully satisfactory. For example, the water and oil repellent treatment for shoe soles and shoe covers involves coating the outer skin of the shoe cover with latex glue or solvent glue, which is mainly made of natural or synthetic rubber. It is not possible to sufficiently increase the adhesive strength between the tape and the tape that reinforces the boundary between the shoe sole and the shoe sole. In particular, latex glue has the disadvantage that since the solvent is water, it is repelled by water- and oil-repellent treated shoes, making it impossible to obtain sufficient adhesive strength, and the tape peeling off while being worn as shoes. It was hot. In another method of applying water and oil repellency, in which a solvent-based fluorine-based water and oil repellent is applied by spraying or other methods to the shoes after the shoe is molded, the solvent-based fluorine-based water and oil repellent is first applied to the raw material. The water and oil repellent has inferior performance and durability compared to the emulsion type pre-treatment agent, and therefore sufficient water and oil repellency cannot be secured, and the post-treatment itself is unevenly applied compared to the pre-treatment. The disadvantage was that it was easy to cause problems, resulting in uneven processing. (Means for Solving the Problems) The present invention eliminates the drawbacks of such conventional methods, and provides uniform and highly water- and oil-repellent properties to the fabric material by pre-treatment, and improves the bond between the fabric material, the bottom material and the tape portion. The present invention provides a method for manufacturing cloth shoes that ensures adhesive performance. That is, the present invention provides a method for manufacturing cloth shoes in which a raw sheet cloth treated with water and oil repellent is used as a cover for cloth shoes, and a sole and tape are adhered to the cover.
The sole and the part of the shoe to which the tape is attached are pretreated with a fluorine-based penetrating agent, and then a latex-based adhesive is applied, or a fluorine-based penetrating agent is added to the latex-based adhesive and applied. The present invention relates to a method for manufacturing cloth shoes characterized by the following. The fluorine-based penetrating agent used in the present invention is a special surfactant mainly composed of surfactants having perfluoroalkyl groups, and although its detailed structure is not clear, it is used for adhesion before applying the latex adhesive. JX-1500 (manufactured by 3M Co., Ltd.) is suitable for applying to the area, and Megafac F- is suitable for adding a small amount to latex adhesives.
833 and F812 (both manufactured by Dainippon Ink Co., Ltd.) are suitable, and commercially available products such as these can be used. The action of these fluorine-based penetrating agents promotes the penetration of the latex-based adhesive into the fabric parts that have been given a high degree of water and oil repellency as in the present invention, and provides sufficient fabric coverage and tape for fabric shoes. This ensures adhesion to the outsole. The adhesive used in the present invention to bond the shoe cover to the sole or tape is a latex adhesive made of natural rubber or SBR latex mixed with colloidal sulfur, a vulcanization accelerator, and a stabilizer. Latex adhesive can be used on the lower part of the cloth hung in the last,
It is applied to the midsole using an impregnation method, dried, and then the sole and tape are adhered. Next, the manufacturing method of the present invention will be explained in detail below. First, a sheet-like raw cloth that will become the cover or outer fabric of the cover is treated with a water and oil repellent. As a sheet-like raw cloth,
You can use anything that is used for this type of cover,
The same applies to the sheet-like raw cloth that becomes the backing fabric in the case of laminated cloth, such as cotton, cotton, polyester, etc.
Examples include single fiber distribution or blended fiber distribution such as polyamide, hemp, vinylon, etc. As a water and oil repellent treatment method for this raw sheet cloth, water and oil repellents such as Scotch Guard FC214, Scotch Guard FC232 (manufactured by 3M), Asahi Guard AG-710 (manufactured by Asahi Glass Co., Ltd.), Deitku Guard F-50, Methods of impregnating fluorine-based water and oil repellents with perfluoroalkyl groups such as F-70 and F80 (manufactured by Dainippon Ink Co., Ltd.) directly or diluting them in a solvent such as water, coating methods, and spraying methods. It is sufficient to adopt a method to do so. Furthermore, the lining cloth may be treated with water- and oil-repellent treatment or anti-bacterial and anti-mildew treatment, if necessary. Next, the sheet-like raw cloth is used to make the bamboo material. Sometimes a single piece of cloth is used as a lining material, but in most cases, cloth with a relatively dense structure is displayed, and a cloth with a relatively coarse structure is pasted or sewn together as a backing material. has been done. Although the present invention is applicable to any of these forms of webbing, the following description will be made with respect to the most common laminated webbing. Apply a small amount of solvent-based rubber laminating glue to the outer fabric that has been treated with the water and oil repellent, then apply the same solvent-based rubber laminating glue to the fabric that will become the lining fabric, and immediately apply the glue to the outer fabric. The surfaces are pasted together and continuously rolled to obtain a piece of material. The laminating glue used in the present invention is a vulcanized adhesive made by kneading natural rubber or synthetic rubber with a vulcanizing agent, accelerator, anti-aging agent, coloring agent, filler, etc., and dissolving it in toluene or D gasoline. There are rubber glues, etc., and a small amount of short chain polyisocyanate may be added to improve adhesiveness. The coating weight of this rubber glue is 200% for solvent-based rubber glue adjusted to a solid content of 50% when applied to surface fabrics treated with water and oil repellents.
g/ ^m2 or less, preferably 100 to 150 g/ ^m2 , and in the case of lamination, the coating weight to the backing fabric is 600 g/ ^m2 or less, preferably 200 to 400 g/m2.
^m2 is appropriate. Another method is to apply solvent-based rubber glue to the lining fabric without applying it to ^the water- and oil-repellent treated outer fabric.
A method of applying g/m ² and bonding it directly to the outer fabric may also be used. Next, the single piece or the laminated piece is cut into a piece using a conventional cutting die, etc., reinforcing pieces, decorative pieces, etc. are sewn on to form the piece, and the piece is hung from the last. . The insole may be sewn onto the sleeve in advance, or may be attached to the bottom surface of the last beforehand. Next, the sole of the outer fabric side of the shoe cover hung on the last,
Apply a fluorine-based penetrating agent to the area to be adhered to the tape, let it dry, and then apply a latex-based adhesive, or apply a small amount of fluorine-based penetrant to the latex-based adhesive, and then apply the shoe sole; Paste the tape and
Shape like a shoe. Thereafter, the shoes are placed in a vulcanizing can and the laminating paste, latex adhesive, sole, and tape are vulcanized to obtain cloth shoes. The fabric shoe manufacturing method of the present invention is applicable not only to the above-mentioned handmade shoes but also to injection molded shoes. (Effects of the Invention) According to the method for manufacturing cloth shoes of the present invention, a sheet-like fabric that has been continuously and uniformly treated with water and oil repellent is used as the material, and after cutting and sewing, the adhesive part is By applying a fluorine-based penetrating agent or adding it to a latex-based adhesive and applying it, cloth shoes can be obtained that have both a high degree of water and oil repellency and sufficient sole and tape adhesion. be able to. In addition, according to the method for manufacturing cloth shoes of the present invention, after shoe molding, there is no unevenness of the treatment agent compared to post-treatment methods such as spraying, and furthermore, the post-treatment method does not require an emulsion-type pre-treatment agent that cannot be used because it does not dry quickly. It is superior in performance and durability because it can be used with other solvents, and it is also advantageous in terms of hygiene and the risk of solvent scattering associated with spray application methods. (Examples and Comparative Examples) Next, the present invention will be explained with reference to Examples and Comparative Examples, but the present invention is not limited to these Examples. Example 1 A 20/2 x 20///60 x 43 plain weave fabric made of cotton yarn was used as the outer fabric of Daytsu Guard F-80 (manufactured by Dainippon Ink Co., Ltd.).
The fibers were impregnated with a 20-fold diluted aqueous solution, coated with a coating solution such that the amount of active ingredient deposited was 0.5% by weight per fiber weight, dried, and baked at 180°C for 40 seconds. Next, apply a toluene diluted rubber paste with a solid content of 50%, which is mainly made of natural rubber, to this fabric.
Apply at a controlled concentration of 150g/m ² and roll up after drying. Next, use a 20/- x 20/-/70 x 50 strong cotton twill fabric as the lining fabric, and apply the above glue to a basis weight of 400.
g/m ² , and then the glued outer fabric was immediately laminated continuously with the glued side as the laminating surface and then rolled up to obtain a lace material. This piece of material was cut and sewn, and a 10-fold diluted solution of fluorine-based penetrant JX-1500 (manufactured by 3M Co., Ltd.) in water was applied with a brush to the latex glue application area on the outer fabric side and dried. This lace was placed on the last mold, the insole was set at the bottom of the mold, and the end of the lace was hung by hand by bending about 10 mm toward the insole and gluing it. Next, apply natural rubber latex adhesive to the inner bottom of the cover and the tape adhesive area, and after drying, natural rubber ~SBR~
A rubber outsole made from an IR mixture compound was adhesive-pressed, and then a natural rubber-based tape with a width of 12 mm was adhesive-pressed to form a shoe. This was placed in a vulcanizing can and heated at 120° C. for 60 minutes to complete the vulcanization of the laminating paste, latex adhesive, sole, tape, etc. to obtain cloth shoes. As shown in Table 1, the results of measuring the physical properties of the resulting shoe fabric, such as water repellency, oil repellency, and changes in tape adhesion after actual wearing, were good. Example 2 A cloth material was obtained in the same manner as in Example 1 using the same outer fabric, lamination paste, and fluorine-based water and oil repellent as in Example 1. Next, this thread material was cut and sewn as in Example 1,
Apply adhesive with the following composition to the sole of the outer fabric and the area where the tape is attached and dry. Natural rubber latex adhesive (solid content 50%, manufactured by Musashino Chemical Co., Ltd. 100 Megafauc F812 (manufactured by Dainippon Ink Co., Ltd.) 3, total 103 Next, in the same manner as in Example 1, suspend, bond the sole and tape, and vulcanize. , fabric shoes were obtained. The physical properties evaluation results of the obtained shoes were good as shown in Table 1. Comparative Example 1 Plain weave fabric of 20/2 x 20/3/70 x 24 cotton yarn as outer fabric. Scotch Guard FC-232 (manufactured by 3M)
Impregnated with 50 times diluted aqueous solution, coated with liquid so that the amount of active ingredient attached per fiber weight is 0.5% by weight, and dried at 180℃ x 40
Baked for seconds. Next, it was laminated to the same backing fabric in the same manner as in Example 1 to obtain a lace material. This lace material was cut and sewn, and the same method as in Example 1 was used without applying any fluorine-based penetrating agent. After the lace was hung, natural rubber adhesive was applied, shoe soles and tape were bonded, and vulcanization was carried out. He did this and got cloth shoes.
As shown in Table 1, the results of physical property evaluation of the obtained shoes were not good. Comparative Example 2 The same outer fabric, lining fabric, and laminating glue as in Example 1 were prepared, and the outer fabric was laminated without any treatment to obtain a lace material. Next, this material was cut into pieces, and after being sewn, it was hung without applying a penetrating agent to the adhesive part, and then a natural rubber latex adhesive was applied, and the sole and tape were then adhered in the same manner as in Example 1. Cloth shoes were obtained by vulcanization. FC905 (manufactured by 3M) dissolved in torchlorethane was applied to the cloth covering part of the obtained shoes using trichlene.
It was diluted 10 times and spray applied. As shown in Table 1, the physical properties of this shoe were not evaluated to be good.

[Table] Water repellency is the value measured based on JISK6328, and oil repellency is the value measured based on the AATCC method.

Claims (1)

[Claims] 1. A method for manufacturing cloth shoes, in which a sheet-like raw cloth treated with water and oil repellent is used as a cover for cloth shoes, and a sole and tape are adhered to the cover, in which the sole and tape are bonded. Manufacture of cloth shoes characterized by applying a latex adhesive after pre-treating the upper part with a fluorine-based penetrating agent, or applying a latex-based adhesive with a fluorine-based penetrant added thereto. Method.