JP3009167U - shoes - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain shoes having water repellency and stain resistance. [Structure] As the instep, the instep (1) treated with a fluorine-based water repellent is used.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to shoes having a water-repellent and antifouling instep cover.

[0002]

[Prior art]

 As is well known, a shoe includes an instep cover that covers the instep of the foot and an outsole attached to the lower surface of the instep cover. In recent years, in shoe uppers, for example, cloth uppers, various invented uppers have been used in order to improve comfort such as breathability, texture and feel. In addition, there is a tendency toward a so-called total look, which is a design that matches fashion trends in clothing.

[0003]

[Problems to be solved by the device]

 Although the shoes using the instep as described above certainly meet the demands of consumers and help to activate the shoe market, in terms of water repellency and stain resistance, especially when the instep is cloth. However, due to its inherent properties, its drawbacks have never been solved. The present invention aims to solve such drawbacks.

[0004]

[Means for solving the problem]

 As shown in the side view of FIG. 1, the present invention provides an instep (1) whose surface is treated with a fluorine-based water repellent, and a polymer outer bottom (1) attached to the lower surface of the instep (1). It is characterized by shoes consisting of 2).

Examples of the fluorine-based water repellent whose surface has been treated include polytetrafluoroethylene, tetrafluoroethylene-hexafluoroethylene copolymer, polyvinyl fluoride, polyvinylidene fluoride, chlorotrifluoroethylene- Derivatives and emulsions of vinylidene fluoride copolymers are used, and diamide-based compounds, melamine-based compounds, isocyanate-based compounds, etc. are used as cross-linking agents, but melamine-based compounds, which cause less discoloration, are most often used. ing.

The fluorine-based compound is provided with water repellency and antifouling property by forming a protective film in which molecules are sealed around the fibers of the cloth. As the outer sole, synthetic rubber such as natural rubber, styrene-butadiene copolymer rubber, polyisoprene rubber, polybutadiene rubber, acrylonitrile-butadiene copolymer rubber, polyurethane, ethylene-vinyl acetate copolymer, ethylene-vinyl chloride copolymer, polychlorinated Polymer solids such as vinyl or foams are used. It should be noted that the concept of shoes in the present invention includes a pair of socks.

[0007]

[Action and effect]

 In the instep cover used in the present invention, the fibers forming the surface are covered with a fluorine-based water repellent agent having a very large bond dissociation energy between carbon atoms and fluorine atoms and having a high chemical stability. Therefore, water, other mud, oil, etc. do not adhere, so the instep has water repellency and antifouling properties.

[0008]

【Example】

 The instep cover (1) shown in FIG. 1 is a cotton plain weave woven fabric, and its structure is (10/2 × 10/2) / (45 × 34). The fibers constituting this woven fabric are 4 parts by weight of emulsion (manufactured by DuPont, Teflon (registered trademark) fiber protective material) made of polytetrafluoroethylene, 0.2 part by weight of melamine-based crosslinking agent, 100 parts by weight of water. Part is covered with a dry film of a fluorine-based water repellent.

On the lower surface of the instep (1), 100 parts by weight of ethylene vinyl acetate copolymer, 30 parts by weight of thermoplastic polyurethane, 90 parts by weight of plasticizer DOP, 4 parts by weight of Ba / Zn stabilizer, titanium oxide. The outer bottom (2) consisting of 5 parts by weight is glued. At the same time, the shoe of the present invention having such a structure and the shoe of the comparative example not subjected to the water-repellent treatment are treated at the same time from June 10, 1994 to July 10, for one month (6 hours per day), It was worn by each 10th grade 6th graders.

In the shoe of the present invention, the toes of all 10 feet are slightly soiled, and water does not penetrate into the shoes when raining, and the intended purpose is sufficiently achieved. Not only water penetrated into the shoes during rainy weather, but also the entire instep was contaminated with mud. I washed these shoes, but they didn't stain much. It should be noted that the shoes of the present invention have sufficiently cleaned their toes by simply rubbing them underwater.

[Brief description of drawings]

FIG. 1 is a side view of a shoe of the present invention.

[Explanation of symbols]

 1 Instep 2 Outsole

Claims (1)

[Scope of utility model registration request] 1. An instep cover (1) whose surface is treated with a fluorine-based water repellent, and a polymer outer bottom (2) attached to the lower surface of the instep cover (1). Shoes to wear.