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Double layer soles formed in one piece and multi-purpose shoes and manufacture method thereof

A manufacturing method and multi-purpose technology, which is applied in one-time molding double-layer soles and multi-purpose shoes and its manufacturing, PU foaming one-time molding shoes manufacturing field, which can solve the problems of sole cloth wrinkle, PU raw material leakage, and PU film damage and other problems to achieve the effect of avoiding easy deformation, increasing water resistance and improving comfort

Inactive Publication Date: 2009-03-11
索力(中国)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When manufacturing the sole, first paste a layer of PU film on the surface cloth material, then cut it into the same size as the sole mold, and then hang it on the mold. Fill the PU raw material into the mold to make it react and form, and at the same time The surface cloth is combined, but the PU film is damaged in this production method, causing the PU raw material to leak, and the unqualified rate is high. Shrinkage will easily cause deforma

Method used

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  • Double layer soles formed in one piece and multi-purpose shoes and manufacture method thereof
  • Double layer soles formed in one piece and multi-purpose shoes and manufacture method thereof
  • Double layer soles formed in one piece and multi-purpose shoes and manufacture method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] according to figure 1 As shown, the raw materials for the outer surface of a multi-purpose shoe with a double-layer sole formed at one time are polyisosine salt and polypolyol, which are uniformly stirred and then poured into the shoe mold to leave a gap on the sole side. The above-mentioned gap on one side of the sole is filled with a mixture of crepe rubber and acrylic butadiene rubber. use as figure 2 The mold of the shoe is infused with raw materials. Put it into a baking oven to bake PU foam molding. The baking temperature is controlled at 90-110°C for 8 minutes. Pressurize twice in the bubble press, take out the finished product and cool for more than one hour. Surface treatment is performed on the inner surface of the PU molding product and the bonding surface of the fabric material to remove excess release agent on the surface, making the surface rough, clean and oil-free and easy to fit, and evenly apply the adhesive polyester glue On the mating surface of ...

Embodiment 2

[0072] according to image 3 As shown, the one-time forming double-sole machine room shoes include PU foam outer surface 1, the outer surface material is polyisosine salt and polypolyol, which are evenly stirred and poured into the shoe mold, and double flat-headed metal nails 2 are placed on the sole side , double flat-headed metal nails penetrate the sole, fixed and sealed by the foamed PU material. After foaming and shaping, the face cloth material 3 is glued on the inner side of the outer surface, holes are opened at the positions of the tacks, and the double tacks 2 are kept in contact with the skin of the feet. The use of such shoes in the computer room helps to eliminate static electricity hazards. According to the national standard GB4385-1995, it has reached and exceeded the national standard. The specific data are as follows:

[0073] Detection method and its data:

[0074]

Embodiment 3

[0076] Prepared 100 parts by weight of PU raw material, 95 parts by weight of rubber and 30 parts by weight of thermoplastic resin, wherein the rubber is selected from natural rubber, and the thermoplastic resin is selected from polycarbonate. Infused into the shoe mold, the mold temperature is controlled at 50°C, the mold filled with raw materials is put into a baking oven to bake PU foam molding, the baking temperature is controlled at 110°C, and the time is 9 minutes. Second; cut and sew the face cloth material into the size of the inner cavity of the shoe; treat the face cloth material and the surface of the PU molding finished product; apply the adhesive evenly on the bonding surface of the PU molding product, and place it for a certain period of time , Lay the face cloth material on the laminating surface of the PU molded product, after 5 hours, put it into the foam press for pressurization, and then trim the edges.

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PUM

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Abstract

The invention discloses a once-forming double layer sole and a multi-functional shoe and a manufacturing method thereof, and belongs to the shoemaking field. The shoe with the double layer sole comprises a PU external surface and fabric internal lining, wherein, the fabric internal lining is adhered to a PU internal surface. The manufacturing method comprises the following steps: a prepared PU raw material is poured in a shoe mould and heated for forming, and a finished product is taken out for cooling; a fabric material is tailored and stitched into the shoe internal cavity with the proper size; the fabric material is jointed on the abutted surface of the PU forming finished product and put into a pressure foaming machine for pressurization; and then the shoe is trimmed and finished. The manufacturing method has the advantages of forming the whole shoe for once, reducing adhesive procedures, lowering cost, increasing shoe tightness, and the shoe is suitable for using in the field of chemical industry and the like, and improve the shoe comfort owing to use of the double layer sole.

Description

technical field [0001] The invention discloses one-time forming double-layer soles, multi-purpose shoes and a manufacturing method thereof, belonging to the field of footwear manufacturing, in particular to the manufacture of PU foaming one-time forming shoes. Background technique [0002] The existing PU shoe production method is to make the sole with PU foam earlier, and then the vamp is bonded on the sole. When manufacturing the sole, first paste a layer of PU film on the surface cloth material, then cut it into the same size as the sole mold, and then hang it on the mold. Fill the PU raw material into the mold to make it react and form, and at the same time The surface cloth is combined, but the PU film is damaged in this production method, causing the PU raw material to leak, and the unqualified rate is high. Shrinkage will easily cause deformation of the sole and wrinkle of the upper fabric of the sole. During processing, the size of the upper fabric material is requi...

Claims

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Application Information

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IPC IPC(8): A43B13/12B29D31/515B29C39/44B29C44/60B29K75/00B29D35/12
Inventor 陈和怀
Owner 索力(中国)有限公司