JPH0217005A - Hair planted resin shoe and method for manufacturing the same - Google Patents

Abstract

PURPOSE:To provide economically shoes with full high class feeling and excellent waterproofness derived from the design of elegant corrugated lines by planting fiber flocks through an adhesive layer on the surface of a shell formed of a seamless synthetic resin skin having desired irregularities on the surface. CONSTITUTION:A sock-shaped lining material is attached to the interior of a shoe-shaped skin formed by the slush molding method for molding resin shoes with a hollow die. The upper end of the skin which will become a wearing opening is cut off if necessary to shape the skin into a desired shoe form, then adhesives are applied to the outer surface and upper end face of the skin and hair is planted electrostatically in an adhesive layer having fiber flocks applied to the surface in the magnetic field. Further, portions of the skin having no adhesives applied are constituted to show patterns, and when hair is planted in said pattern portions, portions not planted with hair according to the pattern can be formed so that a secorative external appearance can be given to shoes. If necessary, flock fibers having any elongation and thickness are electro- stati cally planted, so that if desired various resin shoes resembling extremely seal leather and suede lather shoes are obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a novel flocked resin shoe comprising a seamless synthetic resin shoe with flocked fur on its surface, and a method for manufacturing the same.

[Conventional technology]

Suede-based boots have an elegant velvet-like appearance and feel, making them popular as high-quality boots, especially among women.However, the leather material used is expensive, and the manufacturing process is complicated and costly. . Furthermore, there is a drawback that water easily seeps into the interior of the shoe through the seams of the leather.

Instead of leather shoes, molded shoes made of synthetic resin, especially vinyl chloride resin, are commercially available.

In addition, suede-like resin shoes and rubber shoes with flocked fur are also manufactured. However, conventionally, such shoes have been manufactured by applying adhesive to the surface of a synthetic resin sheet or rubber sheet, electrostatically flocking fiber flock using a magnetic field, and then attaching the flocked synthetic resin sheet or rubber sheet to the shoe-foot. Shoes were made by cutting the flocked sheet into the desired size, placing the cut flocked sheet over a shoe-shaped mold, shaping it, and sewing or gluing it.

However, this method is time-consuming and costly to manufacture, and since the material is a resin or rubber sheet,
It has been impossible to add grain (leather wrinkles) or other subtle irregularities to the outer surface afterwards.

For this reason, even if fiber flock is electrostatically flocked on the surface,
Even if the surface is finished with a suede look, it is impossible to create the grain-like unevenness and other delicate and elegant uneven lines that appear on suede-based boots due to wear, which is a characteristic of synthetic resin and rubber materials in general. It is. In addition, this shoe has the disadvantage that water easily seeps into the inside of the shoe because the seam of the shoe is unavoidable. Furthermore, since the sheet is cut after the flocking, there is a drawback that the cut surface of the sheet, which is not flocked, inevitably appears somewhere on the shoe surface.

On the other hand, a method for manufacturing synthetic resin shoes using a slush molding method is known. In this method, a vinyl chloride resin paste (polyvinyl chloride powder produced by emulsion polymerization is mixed with a plasticizer to form a paste) is placed in a shoe-shaped thin hollow mold made by electroforming. , called plastisol) is cast into a mold, heated from the outside to gel the sol inside from the wall of the mold, and after the gelled layer reaches a predetermined thickness, the ungelled plastisol inside is discharged. This is a method in which the shoe-shaped skin obtained by post-heating and cooling is peeled off and taken out.

Various attempts have been made to modify the surface of shoes manufactured by the slash molding method by adding various irregularities to the inner surface of the mold, and attempts have also been made to create fine irregularities to give a suede look. It can be said that it is absolutely impossible to obtain a suede-like surface close to the real thing using this method.

[Problem that the invention seeks to solve]

Based on the above reality, the present inventor has created a method that is as close as possible to genuine suede leather boots, and that can be applied by injecting wrinkles and other subtle and elegant uneven lines that appear when the base boots are worn. , overflowing with a sense of luxury, and also has excellent waterproofness.
Moreover, the present invention was achieved as a result of extensive research aimed at providing inexpensive suede-like resin shoes and a simple and inexpensive manufacturing method.

[Means for solving problems]

That is, the present invention provides (1) a flocked resin shoe in which a fiber flock is flocked to the cover surface made of a seamless synthetic resin skin having a desired unevenness on the surface through an adhesive layer, and (2) an inner surface. Using a hollow shoe mold with a desired uneven curved surface, a skin forming at least a part of the shoe cover and sole is molded by slush molding of plastisol or plastic powder, and a sock is placed inside the molded skin. A flocked resin shoe characterized in that a shaped lining material is attached, the upper end that becomes the shoe opening is trimmed as necessary, adhesive is applied to the outer surface and upper end surface of the molded skin, and then electrostatic flocking is performed. The present invention provides a method for manufacturing.

The present invention will be explained in detail below.

The hollow mold used in the present invention is a hollow mold in which the inner side surface, that is, the surface corresponding to the shoe-covered surface, has a desired uneven curved surface.

For example, if you want to manufacture shoes that are infinitely similar to suede leather boots, for example, you can actually make the boots from high-quality genuine leather and spend a lot of time graining the surface (leather!l1i), or Depending on the needs, shoes are made with subtle, subtle line-shaped unevenness other than the grain. Shoes like this are a prototype, so it doesn't matter how much time and effort you put into making them. Then, a metal film is formed on the surface of the shoe by electroforming, metal vapor deposition, etc., and the metal film is separated from the shoe to form a hollow mold. According to this known method, it is possible to relatively easily manufacture a hollow mold for shoe manufacturing having a desired smooth and complex unevenness on the inner surface.

The slush molding method for making resin shoes using this hollow mold is well known. This method, for example, involves casting a plastisol of vinyl chloride resin paste as described above,
In an oven, the sol is heated from the outside to gel from the contact area on the inner surface of the mold and grown to a predetermined thickness, then the ungelled sol inside is discharged, and the remaining gelled film is heated and cooled. This is a method of forming a shell-like skin.

As the raw material resin for this slush molding method, any resin other than vinyl chloride resin may be used as long as it is suitable as a shoe material and can be passed through slush molding.

This slush molding allows the shoe's heel and at least a portion of the sole to be integrally molded. For example, if the sole has a thick heel, that portion may be added later.

A sock-like lining material is attached to the inside of the shell-like skin obtained in this way, and if necessary, the upper end of the skin that will become the shoe opening is cut to give the desired shoe shape, and then adhesive is applied to the outer surface of the skin and The flocked resin shoe of the present invention can be manufactured by coating the upper end surface and electrostatically flocking the fiber flock to the adhesive layer coated on the surface in a magnetic field. Note that if the areas to which the adhesive is not applied are formed into a pattern and the hair is flocked to this pattern, the areas where the hair is not flocked can be formed according to the pattern, thereby giving the shoe a decorative appearance.

FIG. 1 is a perspective view showing an example of suede-style boots of the present invention.

Although the adhesive used in the present invention is not particularly limited,
It must have good adhesion to both the flock material and the resin material used. For example, in the case of resin shoes obtained from vinyl chloride plastisol, when using an adhesive that has difficulty in adhesion due to the plasticizer it contains, it is necessary to It is also possible to perform a brimer treatment on the surface with a good resin to prevent plasticizer bleed and improve the adhesive effect.

Specific examples of adhesives used include urethane resin grafted with acrylic resin and dissolved in a solvent;
Alternatively, examples include water-based urethane resins obtained by making water-based urethane resins, but of course the material is not limited to these.

The fibers of the flock material used in the present invention include nylon,
Synthetic fibers such as polyester, artificial fibers such as rayon, short fibers of natural fibers such as cotton, and particularly short fibers of nylon are used. The length and thickness of the short fibers can be arbitrarily selected depending on the intended use of the shoes. For example, if the shoes are made to resemble seal fur shoes, the pile and thickness will be large and the fibers will need to be made from suede. For example, 1mm, 1
．． For example, a short and thin fiber flock of about 5 d or less is used.

It is desirable that the outer surface of the flocked resin shoe of the present invention is further subjected to a water treatment with a suitable water repellent, for example, a silicone-based, fluorine-based, or other arbitrary water repellent. In particular, in the case of boots, since they are often worn in the rain, it is desirable to treat them with water-repellent treatment.Also, if the flocked fibers are made of synthetic fibers, they are easily stained by static electricity, so there is a method of attaching surfactants. It is also desirable to apply antifouling treatment to the surface by other methods.

The flocked resin shoes of the present invention obtained by the above-mentioned method are flocked resin shoes made by flocking fiber flocks through an adhesive layer on the covering surface of a seamless synthetic resin skin having desired unevenness on the surface. be.

〔Effect of the invention〕

The flocked resin shoes of the present invention are electrostatically flocked with flock fibers of any desired pile length and thickness, so that the flocked resin shoes of the present invention can be made into various kinds of resin shoes that are as close to seal leather shoes or suede leather shoes as desired. is obtained.

Moreover, at the same time as the suede opening, it is also possible to design and give the resin shoes any kind of uneven surface that has a unique appearance and feel, and since the hair is later grafted into the shape of the shoe, it is possible to apply an adhesive. Flocking can be applied to any part of the body that can be flocked, and like the conventional shoes made by placing the cut pieces of a flocked sheet over a mold, the non-flocked end surface of the cut pieces is exposed outside, creating an aesthetically pleasing appearance. There is nothing to say that it will be damaged.

Furthermore, since the flocked resin shoes of the present invention have no seams, there is no problem that water easily seeps into them.

The manufacturing method of the present invention is an inexpensive and highly productive method that allows mass production of products of constant quality from inexpensive plastisol, plastic powder, etc. through the well-known slush molding method and electrostatic flocking method. This is a highly industrially valuable method.

[Brief explanation of the drawing]

Figure 1 shows An example of suede-like boots of the present invention is shown. FIG.

Claims (2)

[Claims] (1) A flocked resin shoe in which a fiber flock is flocked to the cover surface of a seamless synthetic resin skin with a desired unevenness through an adhesive layer. (2) Using a hollow mold for shoes whose inner surface has a desired uneven curved surface, mold the skin that forms at least a part of the shoe cover and the sole by slush molding of plastisol or plastic powder; A sock-like lining material is attached to the inside of the molded skin, the upper end that will become the shoe opening is adjusted as necessary, and then an adhesive is applied to the outer surface and upper end surface of the molded skin, and then electrostatic flocking is applied. A method for manufacturing flocked resin shoes.