Imitation leather polishing treatment agent for synthetic leather and preparation method of imitation leather polishing treatment agent

Abstract

The invention relates to crystal slippery resin for synthetic leather and a preparation method of the crystal slippery resin. The crystal slippery resin is formed by preparing the following raw materials in part by weight: 35 to 50 parts of dimethyl formamide, 8 to 15 parts of polyether polyol, 4 to 8 parts of polyester polyol, 10 to 30 parts of diphenylmethane diisocyanate, 0.5 to 1.8 parts of 1,4-butanediol, 3 to 6 parts of ethanediol, 10 to 20 parts of toluene, 10 to 20 parts of acetic ether, 3 to 5 parts of silicone emulsion and 0.01 to 0.03 part of antioxidant. The preparation method comprises the following steps of: performing addition polymerization reaction of the polyether polyol, the polyester polyol and diisocyanate to form a prepolymer; performing chain extension reaction to form polymer with high relative molecular mass; and performing chain extension reaction of diol and polyol on the prepolymer to prepare the resin. The invention has the advantage that the problems of pastiness of gloss oil resin and poor temperature resistance can be solved, the crystal slippery resin is high-temperature-resistant, folding-resistant, anti-aging, simple in process, convenient to produce and low in cost and can be directly applied to the subsequent production process, and the process can employ three-plate printing or spraying.

Description

technical field [0001] The invention belongs to a burnishing and polishing treatment agent for synthetic leather and a preparation method thereof, in particular to an imitation leather burnishing treatment agent for synthetic leather and a preparation method thereof. Background technique [0002] At present, with the improvement of people's living standards, there is more and more demand for genuine leather, but due to the rarity and preciousness of natural resources of genuine leather, the products of the synthetic leather industry must move closer to and develop towards genuine leather. Tactile agents, physical and mechanical strength and chemical resistance, so the development of leather surface imitation leather treatment is the main research direction of leather chemical companies. The coke polishing treatment agent is one of the best treatment agents for imitation leather. [0003] At present, the coke throwing treatment agent in the domestic market is basically produ...

AI Technical Summary

Problems solved by technology

Although these coke treatment agents use different raw materials and production processes, the products can only be used by spraying or coke polishing, which are difficult to throw or lack of coke, and the cost of spraying is high, the process is complicated, and the physical and chemical properties are not good.