Leather shoe upper making process

Abstract

The invention discloses a leather-shoe-upper-surface making and molding technology. The leather-shoe-upper-surface making and molding technology is characterized by including the steps that 1, smooth leather surfaces are cut out according to the sizes of front upper surfaces of shoes, and hot-melting shaping adhesive is applied to the back faces of the leather surfaces according to shaping warp yarns and weft yarns; 2, shaping lining clothes are pasted; 3, warp compensating and shaping are carried out; 4, red paperboard interlayers are pasted; 5, cool shaping is carried out; 6, shaping upper sheets are repaired and finished; 7, shoe uppers are spliced; 8, the hot-melting shaping adhesive is melted and evenly applied to the bottom layers of the front upper surfaces of the shoes, and the bottom layers of the front upper surfaces of the shoes and shoe linings are bonded; 9, the shoe uppers are lasted and shaped; 10, the heads of semi-finished-product shoe uppers after lasting and shaping are sleeved with a high-temperature head-type pressing mold of a hot-melting molding press, a machine is started, head types of the heads of the semi-finished-product shoe uppers are extruded and leveled, the hot-melting shaping adhesive is softened and molded again at the high temperature, the front upper surfaces of the shoes and the shoe linings are thoroughly boned through the permeability and the bonding performance after the hot-melting shaping adhesive is melted, the shoe uppers and shoe lasts are closely attached to meet lasts till cooling is carried out. By means of the leather-shoe-upper-surface making and molding technology, the making quality of leather shoes can be better protected, and the technology is environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of leather shoe production, in particular to a process for making leather shoe uppers. Background technique [0002] During the production process of leather shoes, the production and shaping of the upper of leather shoes are the key to ensure the quality of leather shoes. For the production and production of the upper of the shoe, it is a test of the technical level of the designer. How to perfectly fit the original flat leather surface on the three-dimensional curved last surface, that is, how to turn the flat surface into a vertical surface. Designers began to use the upper heat setting process to solve this problem a long time ago. They firstly controlled the overall length of the front upper based on experience, adjusted the temperature and time of the heat setting machine to take the skin and shape it. Afterwards, the panels are bent, the side edges are stretched, and the upper is joined. This proces...

AI Technical Summary

Problems solved by technology

However, the soaking solvent (toluene) and copolymerized latex used in the production process are all chemical raw materials, which are harmful to the body and irritating to the skin and mucous membranes, so they are not conducive to environmental protection and health. In addition, the shape of the toe cap shaped by the above process Easily deformed after wearing

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