JPH0584102A - Production of slush shoe - Google Patents

Abstract

PURPOSE:To prevent a lining material from looseness by a method wherein the inner face at least from an opening part of putting on to the face being brought into contact with the ground of an instep-covering part of the outer skin of a slush shoe is applied with an adhesive to provide an adhesive layer and after undried or semi-dried condition is prepd., the lining material is forcibly attached and the outer skin of the shoe and the lining material are integrally bonded. CONSTITUTION:A lining material 3 having been prepd. in advance is hung in a last 2. Then, the inner face of at least from an opening part for putting on to the face being brought into contact with the ground of the outer skin 1 of a shoe prepd. in advance by means of slush molding is applied with an adhesive to provide an adhesive layer under undried or semi-dried condition for hanging the outer skin 1 of the shoe and the lining material 3 and the outer skin 1 of the shoe are press-bonded to integrate them. After press-bonding, the shoe is taken out of the last to obtain the shoe. The problem of looseness of the lining material is thereby solved by direct bonding of the outer skin 1 of the shoe with the lining material 3 and the lining is prevented from stain on the face side being contact with a foot and feeling of the surface of the lining is prevented from obstruction both caused by exudation of the adhesive.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a method for manufacturing slash shoes.

[0002]

2. Description of the Related Art A slush molding method is known as one of the methods for manufacturing synthetic resin shoes. The method of manufacturing shoes by slush molding is widely used for manufacturing various shoes because the shoes can be mass-produced at low cost and have good waterproofness and heat retention.

The structure of a conventional shoe by slush molding is
Generally, as shown in FIG. 3, it is composed of a shoe skin 11, a lining material 12, and an insole 13.

As a method of manufacturing this type of shoe, the shoe outer skin 11 is integrally formed by slush molding using a vinyl chloride resin for plastic sol. Then, after the bottom of the shoe skin 11 and the midsole 13 are adhered to each other, the shoe skin 11 and the lining material 12 are fixed to the upper and lower sewing portions 14 of the shoe by sewing to form the shoe 15. Is known.

The shoe produced by the slush molding method described above is shown in FIG.
As shown in (a), in the case of a shoe with a high scabbard such as conventional boots, even if the lining material 12 is loosened in the portion close to the ground contact surface of the scabbard, it is difficult to see from the outside, so it is not a serious problem. ..

However, as shown in FIG. 3 (b), if shoes with a low skin are manufactured by the same manufacturing method, since the skin is low, the slack of the lining material 12 is visible from the outside and the product image is deteriorated. There was a problem of causing it.

[0007] The applicant has disclosed in Japanese Patent Laid-Open No. 3-146001 that an adhesive is applied to the lining material side in order to bond and integrate the lining material along the inner surface of a shoe outer skin, which is a short shoe with a low skin. It proposes a method of providing layers.

[0008]

However, if the adhesive applied to the lining material adheres in an undried state, the adhesive soaks into the lining material and oozes out to the side of the foot contact surface, causing contamination and a feeling of texture. With lining materials such as stiffening or napped materials or pile materials, the napped parts or pile parts fell asleep due to the leaching of the adhesive, causing a problem that the original texture was remarkably deteriorated. Also, if the adhesive applied to the lining material adheres in a dry state, it will not seep out to the lining material contact surface side of the adhesive, but the adhesion will not be sufficient and the adhesive strength will be weak and peeling etc. There was a problem. Also, the running material did not fit on the curved surface inside the outer skin of the shoe and wrinkles occurred.

[0009]

In order to solve the above-mentioned problems, the present invention is one in which a slush shoe skin and a lining material are bonded and integrated. That is, the present invention provides (1) after applying an adhesive to at least the inner surface of the slush shoe skin skin skin portion from the opening of the shoe opening to the ground contact surface to form an adhesive layer, and after making it undried or semi-dried A lining material is pressure-welded to integrate the shoe outer skin and the lining material by adhesion, and (2) at least the inner surface of the slash shoe outer skin skin portion at least from the mouth opening to the ground contact surface. An adhesive is applied to form an adhesive layer, which is undried or semi-dried. On the other hand, an adhesive is applied to the adhesive surface side of the lining material to form an adhesive layer, and the adhesive is semi-dried or dried.
After that, the outer skin of the slash shoe and the lining material are pressure-contacted with each other to be bonded and integrated. Further, in (1) and (2), it is also characterized in that a stretchable material is used as the lining material.

[0010]

In this way, an adhesive is applied to at least the inner surface of the slash shoe skin skin skin portion from the mouth opening portion to the ground contact surface to form an adhesive layer, which is undried or semi-dried. Since the adhesive is integrated by pressure contact, it is possible to form a shoe having a good texture and to form a high-quality shoe without the adhesive leaching to the contact surface side of the lining material.

Further, an adhesive is further applied to the lining material to form an adhesive layer, which is semi-dried or dried, and then pressure-bonded and integrated with the undried or semi-dried adhesive layer on the inner surface of the outer skin of the shoe. By doing so, the adhesive does not seep out to the lining material foot contact surface side, a shoe with a good texture can be formed, and a stronger bond can be obtained, so that a high-quality shoe can be formed.

Further, since the elastic material is used as the lining material, the outer skin of the shoe extends from the mouth to the ground contact surface.
It fits well on the inner curved surface and can form high quality shoes.

[0013]

Embodiments of the present invention will now be described in detail with reference to the drawings. As shown in FIG. 2A, the lining material 3 manufactured in advance is suspended in the last 2. Thereafter, the shoe outer skin 1 produced by slush molding in advance is provided with an adhesive agent on at least the inner surface from the mouth opening portion to the ground contact surface, and the shoe outer skin 1 is provided as an adhesive layer 7 in an undried or semi-dried state. Hanging, lining material 3 and shoe skin 1
Crimping to integrate. After crimping, remove the shoes from the last and obtain shoes.

Further, an adhesive is applied to the surface of the lining material 3, and an adhesive layer 8 is provided on at least the skin portion 6 of the lining material 3 extending from the mouth opening 4 to the ground plane 5. After the adhesive layer 8 is semi-dried or dried, the adhesive layer is undried or semi-dried on at least the inner surface of the shoe outer skin 1 from the mouth opening portion to the grounding surface, and is suspended. ,
The lining material 3 and the shoe skin 1 are pressure-bonded and integrated. After crimping, remove the shoes from the last and obtain shoes.

The lining material 3 is made of a stretchable material so that the shoe outer skin described above is suspended and pressure-bonded integrally with each other, so that the inner skin of the shoe outer skin is well fitted to prevent wrinkles. obtain.

As shown in FIG. 1, in the method of manufacturing the shoe outer skin 1 by slush molding, first, a desired shoe is made of real leather and used as a shoe prototype. In order to obtain a fine and dense skin pattern on the surface of the shoe mold, a mold is taken by electroforming. The shoe prototype is made into a conductor by a silver mirror method, a vacuum deposition method, etc., and then immersed in an electroforming solution in which nickel, alloy, etc. are dissolved, and an electric current is applied to perform electroforming. After that, by separating from the shoe prototype, a hollow mold having a fine and dense surface design on the hollow inner surface like the surface of the genuine leather shoe is obtained. Vinyl chloride plastisol was injected into this hollow mold and heated to a temperature of 100 to 300 ° C., the sol was semi-gelated from the contact part with the metal mold and allowed to grow to a predetermined thickness. The ungelled sol is discharged, and the remaining semi-gelled layer is further heated to completely gel and then cooled to obtain a shoe outer skin 1 having a surface similar to that of the prototype. The last 2 shown in FIG. 2 is a foot-shaped form frame and is used as a support stand for adhesion, and a heating device can be incorporated therein. The lining material 3 is
As a material, natural leather such as cowhide, horsehide, pigskin, and general cloth such as knitted cloth, woven cloth, and non-woven cloth are used. These materials are formed into a foot mold by a method such as stitching and heat fusion.

Various methods can be used to provide the adhesive layers 7 and 8. For example, a method such as air spraying, airless spraying, electrostatic spraying, or brush coating is used on the inner surface of the outer skin of the shoe or the lining material suspended on the last.

The area where the adhesive layers 7 and 8 are provided is at least the area of the shoe skin 1 from the shoe opening 4 to the ground plane 5. Alternatively, the lining material 3 may be located at least from the mouth opening 4 of the skin 6 to the ground contact surface 5.

To further improve the integrity, the adhesive may be applied to the entire inside surface of the outer skin of the shoe or to the entire skin 6 of the lining material.

As a bonding method, when a coating type adhesive is used, heating and drying and curing can be accelerated. The adhesive may be either solvent-based or water-based.

As a pressure bonding method for more firmly bonding the shoe outer skin 1 and the lining material 3 to each other, an air bag method, a liquid pressure bonding method or the like for uniformly pressing the entire shoe is used.

[0022]

As described above in detail, in the manufacturing method of the present invention, since the shoe skin and the lining material are directly bonded, the problem of slackening of the lining material, which has been conventionally seen, can be solved, and the adhesive It is possible to provide an excellent product with a good feeling of footing without causing stains on the foot contact surface side of the lining due to leaching out of the product, or hindering the texture of the surface of the lining material, and without causing defects in appearance. .. Furthermore, by using a stretchable material for the lining material, the lining material fits well to the curved surface inside the shoe skin, and a shoe without wrinkles can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view of a shoe according to an embodiment of the present invention.

FIG. 2 is an explanatory view of a method for manufacturing shoes according to the present invention.

FIG. 3 is a sub-sectional view of a shoe according to a conventional manufacturing method.

[Explanation of symbols]

 1 shoe outer skin 2 last 3 lining material 4 mouth opening 5 ground contact surface 6 skin layer 7, 8 adhesive layer

Claims (3)

[Claims] 1. An adhesive is applied to at least the inner surface of the outer skin of the shoe skin from the opening of the shoe opening to the ground contact surface to form an adhesive layer, and the lining material is pressure-bonded after being undried or semi-dried. A method for manufacturing a slush shoe, wherein the shoe skin and the lining material are integrated by adhesion. 2. The method for producing a slush shoe according to claim 1, wherein an adhesive agent is applied to the adhesive surface side of the lining material, an adhesive layer is provided, and the slush shoe is adhered in a semi-dried or dry state. 3. The method for manufacturing a slush shoe according to claim 1, wherein the lining material is a stretchable material.