A low-energy-consumption ecological artificial leather manufacturing method

Abstract

The invention discloses a low energy consumption ecological leatheroid preparation method. The preparation method adopts an environmental-friendly plasticizer to replace a phthalate noxious plasticizer to prepare a PVC surface layer and a foam layer, utilizes a low temperature foaming agent with a foaming temperature ranging from 160 DEG C to 190 DEG C to replace the conventional azodicarbonamide (AC) high temperature foaming agent to foam on the foaming layer, and finally uses an environmental-friendly aqueous resin as a base cloth glue and a PVC surface treating agent, as a result, the low energy consumption ecological leatheroid preparation method is obtained. The discharging and residue of the noxious plasticizer and an organic solvent are avoided by using the environmental-friendly plasticizer, as a result, the ecological grade of the finished leatheroid is improved; the application of the low temperature foaming agent can remarkably lower the energy consumption caused by the leatheroid preparation, the production cost is saved, meanwhile, the foam holes are fine and uniform, destructive air holes are avoided, and the color is fleet and weak. By adopting the process, the prepared leatheroid has the characteristics that the cost is low and the content of the volatile organic substance is lower than 5 mg / kg, satisfies quality requirement of EU ecological leatheroid, and remarkably improves the international market competitiveness and the environmental protection grade of the leatheroid.

Description

technical field [0001] The invention belongs to the field of synthetic leather manufacture, and specifically refers to a low energy consumption ecological artificial leather manufacturing method. Background technique [0002] my country is the largest producer and consumer of imitation leather in the world. In 2012, there were more than 3,000 imitation leather-related enterprises (more than 300 enterprises above designated size), 1,575 production lines, and an output of 7.8 billion square meters, accounting for 73% of the world's total output. As the first generation of imitation leather products, polyvinyl chloride (PVC) artificial leather has the characteristics of bright color, high strength, wear resistance, folding resistance, acid and alkali resistance, low cost and convenient processing. It has been widely used in bags , furniture, automotive interiors, floors, wallpapers and other fields. According to statistics, from 1997 to 2012, the production scale of PVC arti...

AI Technical Summary

Problems solved by technology

This method eliminates the discharge pollution and residues of toxic plasticizers and solvents from the source, overcomes the persistent problems of high energy consumption and high pollution in the traditional PVC artificial leather manufacturing process, reduces product production costs, and improves the ecological level of finished leather and international market competitiveness.