Carving and molding process of leather

A molding process and leather technology, which is applied in the crafts and decorative arts for producing decorative surface effects, etc. It can solve the problems of high mold requirements, easy cracking and deformation of leather, high processing cost, etc., and achieve strong three-dimensional effect and low mold processing cost , low cost effect

Inactive Publication Date: 2012-08-22
东莞市顺琦手袋实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a leather carving molding process, the leather products produced by this process have strong concave-convex feeling, clear outline, and special modeling structure, which solves the problems of high mold requirements and low Disadvantages of easy cracking and deformation of leather and high processing cost

Method used

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  • Carving and molding process of leather
  • Carving and molding process of leather
  • Carving and molding process of leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The vacuum suction device used in this embodiment is as figure 1 As shown, it includes a box body 12 with an upper cover 1. After the upper cover 1 and the box body 12 are closed, the whole body is sealed. A cavity is arranged in the box body 12, and a support plate with a vacuum hole is placed at the bottom of the cavity. 6. The support plate 6 is connected to the vacuum device 8 through the ventilation pipe 7, and a heating plate 5 for placing the blister mold 4 is fixed above the support plate 6, and a sealing ring 3 is arranged around the heating plate 5 on the support plate .

[0028] The leather engraving molding technique of the present invention is specifically as follows steps:

[0029] 1) Make the corresponding blister mold according to the selected three-dimensional figure or pattern 4;

[0030] 2) Combination of leather and substrate: Apply a layer of adhesive on the back of the leather, and combine with the substrate by rolling or molding to obtain compos...

Embodiment 2

[0035] The specific scheme is the same as in Example 1, except that the polyurethane (PU) artificial leather is coated with polyurethane glue (adhesive) on the back, and is compounded with the PVC material substrate by rolling compounding process to obtain a composite leather material. The material is placed in a vacuum blister device, covered with polyurethane foam and PVC board, and then the leather is heated to 90°C, and the shaped three-layer composite leather is cooled to room temperature by a fan.

Embodiment 3

[0037] The specific scheme is the same as in Example 1, except that the back of the polyurethane (PU) artificial leather is coated with EVA hot melt adhesive, and the substrate of the polyethylene material is compounded by molding and compounding to obtain a composite leather. Put it in a vacuum blister device, cover it with polyurethane foam and PVC board, then heat the leather to 120°C, and cool the molded three-layer composite leather to room temperature by a fan.

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Abstract

The invention relates to a treatment process of leather, in particular to a carving and molding process of leather with a concave-convex arabesquitic pattern structure. The process comprises the following steps of: 1), manufacturing a corresponding plastic absorbing mold according to a selected stereoscopic figure or pattern; 2), putting the leather above the plastic absorbing mold in a vacuum plastic absorbing device, folding the leather with the plastic absorbing mold after the leather is heated to 90-120 DEG C, sealing four sides of the leather with four sides of the plastic absorbing mold, and applying vacuum, so that the leather is clung on the surface of the plastic absorbing mold to be molded; and 3), cooling the molded leather through an air cooling or water cooling way, and carrying out demolding to obtain a leather product with a concave-convex carved and molded structure. By using the carving and molding process, the plastic absorbing carving and molding are adopted; the whole flow is simple and convenient; the operation cost is low; the plastic adsorbing mold only needs one mold; moreover, a material does not need quite high strength; and thus, the carving and molding process is also lower in the machining cost of the mold.

Description

technical field [0001] The invention relates to a leather treatment process, in particular to a leather carving molding process with a concave-convex pattern structure. Background technique [0002] In recent years, leather materials have been widely used in various fields of the national economy, and have become one of the closely related and indispensable materials in people's lives. In people's life, the traditional use of leather materials is mainly used in the manufacture of clothing, luggage, furniture, etc. With the improvement of living standards, leather materials have gradually been applied to high-end packaging and decoration fields, and various soft products have appeared. The hard bag leather decoration material greatly expands the application field of leather materials. In the early days when leather materials were applied to packaging materials, people simply wrapped leather on the surface of foam, board and other materials to play a decorative and beautiful ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B44C1/24
Inventor 陈蕾李琳
Owner 东莞市顺琦手袋实业有限公司
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