Nano-material leather assistant

Abstract

The invention relates to a nano-material leather assistant. The nano-material leather assistant includes 20-30% of a nano-material, 50-60wt% of a wetting agent, 60-70wt% of a dispersant, 10-30wt% sodium hydroxide, 15-35wt% of sulfonic acid, 17-26wt% of calcium sulfide, 70-80wt% of a binder and 80-90wt% of an organic sulfonic compound. The organic sulfonic compound is composed of organic sulfonic acid and disodium ethylenediaminetetraacetate, and a weight ratio of the organic sulfonic acid to disodium ethylenediaminetetraacetate in the organic sulfonic compound is 3:7-7:3. The combination of the nano-material and the organic sulfonic compound improves the properties of the nano-material leather assistant, enhances the mildew and bacterium resistance of formed leather, so the obtained leather has plump hand feeling and fine grain surface; and the assistant has the advantages of chromium absorption improvement, reduction of the emission of neutral salt and chromium in sewage, and improvement of the yield and the tensile strength of the leather.

Description

technical field [0001] The invention belongs to the field of paint additives and relates to a nano material leather auxiliary agent. Background technique [0002] In the prior art, although some auxiliaries add nano-components to the ingredients by using nano-decomposition of fungi, bacteria and other characteristics that are prone to putrefaction and odor on the leather, their performance is unstable, resulting in the resulting leather. Smooth, uneven thickness and color, low chromium content, low leather yield and tensile strength, very high content of neutral salt and chromium in the treated sewage, serious environmental pollution after discharge, and post-treatment costs higher. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a nano-material leather auxiliary agent with good stability, which can improve the quality of finished leather and increase the yield of leather. [0004] In order to solve...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, although some auxiliaries add nano-components to the ingredients by using nano-decomposition of fungi, bacteria and other characteristics that are prone to putrefaction and odor on the leather, their performance is unstable, resulting in the resulting leather. Smooth, uneven thickness and color, low chromium content, low leather yield and tensile strength, very high content of neutral salt and chromium in the treated sewage, serious environmental pollution after discharge, and post-treatment costs higher