Manufacture of synthetic leather with one-step formed coating and substrate

Abstract

A synthetic leather manufacturing method in which a base material and a skin are formed at one time, which utilizes two sets of injection mixing devices to manufacture a PU plastic foam layer and a skin layer at the same time, and make both of them half-reacted but not completely hardened. In order to achieve the effect of one-time molding, the present invention overcomes the shortcomings of the known technology that the base material and the dough must be manufactured separately, and the space for storage and accumulation of materials is wasted, thereby shortening the manufacturing process and saving plant equipment. And manpower, electricity and material resources, as well as reducing production costs, no air, water pollution, and has the advantages of a wider range of uses.

Description

technical field [0001] The invention relates to a synthetic leather manufacturing method, in particular to a method of injecting and pouring foamed plastic material on a base cloth by using an injection machine, and then injecting and pouring unfoamed plastic material on a release form by using another injection machine. A synthetic leather manufacturing method that forms a skin on paper and presses the substrate and the skin in a semi-reactive state that has not yet fully hardened. Background technique [0002] At present, the known manufacturing method of artificial synthetic leather must first produce a base material, which usually contains various raw materials and solvents in one or several dipping tanks, and guides the base cloth to pass through the dipping tanks impregnation of the material, and then introduce the base cloth into a water tank to make the surface gel and solidify, and then use electric heating drying equipment to dry it to form a synthetic leather base...

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a synthetic leather manufacturing method in which the base material and the skin are molded at one time. It utilizes two sets of injection mixing devices to separately manufacture a base material and a skin layer of a PU plastic foam layer at the same time, and make the two All of them are laminated in a half-reacted and not fully hardened state, so that they can be joined together to achieve the effect of one-time molding, and can overcome the defects of the known technology that they must be manufactured separately, wasting space for storing and accumulating materials, and can be used. Shorten the process, save plant equipment, manpower and material resources, and reduce production costs

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