Post finishing process for superfine fiber artificial leather

Abstract

A post finishing process for superfine fiber artificial leather, i.e., chemically finishing and modifying fabric back material, is carried out by wet and dry finishing substrate, middle layer coating, and spraying a shining layer with appearance of natural leather for automobile seats, sofas and shoes. The artificial leather is like natural leather in elasticity, plumpness softness and appearance, neither Cr containing chemicals nor azo pigment nor pentachlorophenol nor free formaldehyde in production, i.e., an ecologic leather production.

Description

technical field [0001] The invention relates to the processing technology of synthetic leather and leather, in particular to a post-finishing method of superfine fiber synthetic leather. Background technique [0002] my country's polyurethane industry developed in the early 1960s, with a short production history and a slow development speed. Affected by this, my country's polyurethane synthetic leather industry also started relatively late. The domestic artificial leather market has long been dominated by PVC artificial leather. In 1983, Yantai Synthetic Leather Factory introduced Japanese polyurethane synthetic leather production technology, built and put into operation 3 million M 2 Polyurethane synthetic leather device. In 1986, Changzhou Synthetic Chemical General Factory imported a production line with an annual output of 5000t polyurethane slurry from Italy. In 1995, there were 15 polyurethane slurry production plants nationwide, with an annual production capacity of...