JP2005205064A - Shoe upper material quickly dried and shoe using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shoe upper material quickly dried after washing and a shoe quickly dried using the same. <P>SOLUTION: The shoe upper material used for the shoe quickly dried has a foam inserted between a surface material and a back material which are composed of a mesh fabric made of nylon, Tetron, or the like, an artificial leather, or a synthetic leather. The foam has a core material composed of a foam made of a thermoplastic resin such as EVA, polyethylene, polypropylene, or rubber which has closed cells and a specific gravity of 0.05-0.2, and both sides of the core material is covered with a thin foam. The shoe upper material is used for piping and a tongue, and the other shoe upper material employs a water repellent material. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a shoe upper material that does not retain moisture and quickly dries when wet or after washing, and a shoe that quickly dries using the same.

The shoes currently on the market use a soft urethane foam for the backing of the upper for the reason that the shoes are light in weight and fit, and the price is low. In addition, in order to make it difficult for water to enter the shoes, synthetic leather and artificial leather are often used for the upper cover.
Registered utility model No. 3027760 is a shoe with excellent drying characteristics. The shoe upper cover is made of neoprene sponge as a main material for the upper cover material of diving shoes, and jersey etc. are bonded to both sides or one side of the neoprene sponge. Is described.
Registered utility model No. 3027760

Since the flexible urethane foam is of the open cell type, when it is combined with a surface material such as synthetic leather or artificial leather that is easy to absorb moisture and has poor air permeability, there is a drawback that it is difficult for moisture to escape once water is absorbed. Therefore, if the upper is wet or is washed while wearing, it will take a long time to dry. In particular, the velo part and the mouth part have the thickest urethane foam, and the structure in which the tip part is covered with synthetic leather or artificial leather is the most difficult part to dry.
Like the neoprene sponge, even if it gets wet, it does not squeeze in water and has the advantages of fast drying, but has the disadvantage of high material costs.
There is a demand for a shoe upper material that is inexpensive and excellent in cushioning properties, replacing soft urethane foam.

  The shoe upper material used for the mouth part and tongue part of the present invention is a shoe upper material in which a foam is inserted between the front material and the back material, and the thick upper material used for the mouth material and tongue member. The foam is formed by laminating a foam as a thin coating material on both sides of a foam as a core, and the foam as a core has a specific gravity of 0.05 to 0.20. It is a non-water-retaining foam.

  The non-water-retaining foam used as the core material does not retain moisture when wet, and it is preferable to use a foam having closed cells or a foam imparted with water repellency. Specifically, examples of the core material include EVA sponge, polyethylene foam, polypropylene foam, and rubber sponge, but water-repellent flexible urethane foam can also be used. Moreover, since it has a function as a core material, it is preferably a lightweight foam having good cushioning properties and a specific gravity of 0.05 to 0.20.

In the shoe upper material, the foam serving as a thin covering material is preferably a non-water-retaining foam in order to speed up drying after washing.
Moreover, since it is bonded together with the front material and the back material of the upper material, those having good adhesiveness are preferable.

  In the above-mentioned shoe upper material, the surface material and the back material are preferably water-retaining materials that do not retain moisture, and fabrics and mesh fabrics made of synthetic fibers such as polyester and nylon, artificial leather, and synthetic leather may be used. preferable.

The shoe of the present invention has the shoe upper material of the present invention described in the previous section placed on the mouth and tongue to accelerate drying after getting wet with water, and the other upper material is non-water-retaining. It is characterized by comprising a shoe upper material.
Non-water-retaining shoe upper materials used for other upper materials are materials that do not retain moisture when wet, such as ordinary open cell type flexible urethane foam or water-retaining properties. Good cotton cloth is not suitable, and synthetic fabrics and mesh fabrics, synthetic leather, artificial leather and the like can be used.
If the shoe of the present invention is constructed so that the inside of the shoe and the outside of the shoe are not stepped on between the heel and the heel, and a plastic mesh is arranged to release the moisture in the shoe from the shoe sole. After the water becomes better and gets wet, shoes that dries faster can be obtained.

When the shoe upper material of the present invention is used for a thick material such as a mouth portion and a tongue portion, it is possible to provide a shoe that is easy to dry after getting wet. For example, even if you wash your shoes and dry them in the evening, they dry quickly and can be worn the next morning, so you can easily wash your shoes.
Further, the shoe upper material of the present invention is such that the foam inserted between the front material and the back material is a thin foam on both sides of the foam which becomes a core material having a specific gravity of 0.05 to 0.2. Therefore, the core material and the covering material can be appropriately selected according to the cost and function.

A footwear material was selected as the shoe upper material of the present invention. The footwear material of the example was set as Example 1 and Example 2.
Moreover, the footwear material of the comparative example was set as the comparative example 1 and the comparative example 2. Each of these footwear was immersed in water and then evaluated for dryness.
In addition, the shoe of the present invention is set as a shoe of the shoe example using the footwear material of Example 1, and the shoe using the footwear material of Comparative Example 1 is set as a shoe of the comparative example. The drying property after washing was evaluated.

1. Composition of the footwear material The composition of the footwear material is that the front material is a polyester mesh material and the back material is a polyester knit material, and a foam sheet is inserted between the front material and the back material. Is bonded to the front and back materials with an adhesive or the like on both sides thereof, and the core material and the covering material are bonded to each other with an adhesive.

Table 1 shows the specific gravity and hardness of the foam sheets used in Examples and Comparative Examples.
In Table 1, the flexible urethane foam is of the open cell type, and the EVA sponge is of the closed cell type.

Hereinafter, the configurations of the footwear materials of Example 1, Example 2, Comparative Example 1, and Comparative Example 2 are shown.
<Example 1 Footwear a>
The footwear material a of Example 1 has the following configuration, and the polyester mesh material of the front material is bonded to the foamed sheet of urethane foam 4.0 mm with an adhesive, and the backing material. The polyester knit material is bonded to EVA sponge 1.5 mm with an adhesive.
Further, the EVA sponge 5.0 mm as the core material, the EVA sponge 1.5 mm as the covering material, and the flexible urethane foam 4.0 mm are bonded together by an adhesive.
Composition table of the mouth material a: Polyester mesh material Foam sheet: Soft urethane foam 4.0 mm / EVA sponge 5.0 mm / EVA sponge 1.5 mm
Backing: Polyester knit material

<Example 2 Footwear b>
The footwear b of Example 2 has the following constitution, and the polyester mesh material of the front material is bonded to the foamed EVA sponge 1.5 mm with an adhesive, and the polyester material of the backing material The knit material is bonded to EVA sponge 1.5 mm with an adhesive. The core EVA foam 5.0 mm and the covering EVA sponge 1.5 mm are bonded together with an adhesive.
Construction material of the mouthpiece material b: Polyester mesh material Foam sheet: EVA sponge 1.5 mm / EVA sponge 5.0 mm / EVA sponge 1.5 mm
Backing: Polyester knit material

<Comparative Example 1 Footwear c>
The mouthpiece c of Comparative Example 1 has the following configuration, and the polyester mesh material of the front material is bonded to the foamed sheet of urethane foam 4.0 mm by an adhesive, and the polyester of the backing material. The system knit material is bonded to flexible urethane foam 15.0 mm with an adhesive. The flexible urethane foam 15.0 mm and the flexible urethane foam 4.0 mm are bonded to each other with an adhesive.
Composition of the cuff material c: Polyester mesh material Foam sheet: Soft urethane foam 4.0 mm / Soft urethane foam 15.0 mm
Backing: Polyester knit material

<Comparative Example 2 Footwear d>
The footwear d of Comparative Example 1 has the following configuration, and the polyester mesh material of the front material is bonded to the foamed EVA sponge 3.0 mm with an adhesive, and the polyester material of the backing material The knit material is bonded to the flexible urethane foam 15.0 mm with an adhesive. Moreover, 15.0 mm of flexible urethane foam and 3.0 mm of EVA sponge are each bonded together with the adhesive agent.
Composition material of the mouthpiece material d: Polyester mesh material Foam sheet: EVA sponge 3.0 mm / soft urethane foam 15.0 mm
Backing: Polyester knit material

2. Example 1 (Foot mouth material a), Example 2 (Foot mouth material b), Comparative example 1 (Foot mouth material c), Comparative example 2 (Foot mouth material d) The degree of drying after water immersion was measured for the change in the amount of water contained in each sample.
In the test method, the size of each sample was 7 cm × 9 cm, and the weight in a dry state was measured in advance.
Next, each sample was sufficiently sucked with water, shaken by hand 10 times to drain water, and immediately after measuring the weight, the weight was measured every hour. And it subtracts the weight of the material in a dry state from the weight of the sample after water immersion, and shows it as a graph like Table 2.

Here, the drying conditions of the sample are a room temperature of 25 ° C. and a humidity of 60%.
<Consideration of results>
The footwear materials of Example 1 and Example 2 have better cushioning properties than the footwear materials of Comparative Example 1 and Comparative Example 2, and can dry quickly because the amount of water absorption after water immersion is very small. did it.

3. Example with shoes
Table 3 shows configurations of the shoe of the example and the shoe of the comparative example.

Details of the shoes of the examples and the shoes of the comparative examples will be described below.
(Example shoes)
The upper part of the shoe of the example uses <the mouth material of Example 1> described in the previous section for the mouth part and part of the tongue, synthetic leather is used for the decoration material, and other parts A double raschel made of nylon was used. This shoe upper was hung together with the mid-sole material of Table 3, and the bottom material of Table 3 was attached with an adhesive to obtain the shoe of the example.
The configuration of the mouthpiece material a of Example 1 is as follows.
<Footwear material a of Example 1>
Surface: Polyester mesh foam sheet: Soft urethane foam 4.0 mm / EVA sponge 5.0 mm / EVA sponge 1.5 mm
Backing: Polyester knit

(Comparative shoes)
The shoe upper of the comparative example uses the cuff material c of the comparative example 1 described in the previous section for the mouth part and the tongue part, synthetic leather is used for the decoration material, and the other parts are made of nylon. Double raschel was used. This shoe upper was hung together with the same insole material as the shoe of the example, and the same bottom material as the shoe of the example was attached with an adhesive to obtain a shoe of a comparative example.
The structure of the footwear c of Comparative Example 1 is as follows.
<Footwear c of Comparative Example 1>
Surface material: polyester-based woven foam sheet: soft urethane foam 4.0 mm / soft urethane foam 15.0 mm / EVA sponge 1.5 mm
Backing: Polyester knit

4). Dryability evaluation after water immersion in shoes The shoes of the above examples and the shoes of the comparative example were washed and the degree of drying was compared.
As a test method, the weight of each shoe in a dry state was measured in advance.
Next, each shoe was washed with a drum-type washing machine for 10 minutes so that it sufficiently contained water, and drained by shaking 10 times by hand. Immediately thereafter, the weight of the shoe was measured, and thereafter the weight was measured every hour.
The amount of water contained in the shoe was determined by subtracting the weight of the shoe in the dry state from the weight of the shoe.
Changes in the amount of water contained in each shoe are shown in a graph as shown in Table 4.

Here, the drying conditions of the shoes are a room temperature of 25 ° C. and a humidity of 60%.

<Consideration of results>
The shoes of the examples of the present invention could be dried quickly because the amount of water retained during water immersion was very small compared to the shoes of the comparative examples.

It is sectional drawing of the shoe upper cover of this invention. It is sectional drawing of the conventional shoe upper.

Explanation of symbols

1. Surface material 2. Backing 3. Covering material 1
4). 4. Core material Covering material 2
6). 6. Foam of the present invention 7. Conventional foam adhesive

Claims (5)

It is a thick shoe upper material used for the upper material, the mouthpiece member, the tongue member, etc. in which the foam is inserted between the front material and the back material,
In the foam, a foam as a thin coating material is laminated on both sides of a foam as a core material, and the foam as a core material is a non-water-retaining foam having a specific gravity of 0.05 to 0.20. Upper material characterized by the body. The shoe upper material according to claim 1, wherein the foam as the core material is a thermoplastic resin foam such as EVA, polyethylene, or polypropylene, or a rubber sponge. The shoe upper material according to claim 1 or 2, wherein the foam serving as the thin covering material is a non-water-retaining foam. The shoe upper according to any one of claims 1 to 3, wherein the front material and the back material are woven fabric or mesh fabric made of synthetic fiber such as nylon or polyester, or artificial leather or synthetic leather. Wood. Any one shoe cover material according to any one of claims 1 to 4 is disposed in a mouth portion and a tongue portion of the shoe upper, and a non-water-retentive shoe upper is disposed in another portion of the shoe upper. A shoe characterized in that a substrate is disposed.