Printed synthetic leather and method for manufacturing same

Abstract

The invention relates to a printed synthetic leather and a method for manufacturing the printed synthetic leather. The printed synthetic leather comprises a base cloth layer; the base cloth layer is coated with a water PU (polyurethane) foaming layer; and the surface of the water PU (polyurethane) foaming layer is printed directly to form a printed layer. The method for manufacturing the printed synthetic leather comprises the following steps: preparing a slurry; feeding the slurry into a foaming machine; adjusting the proportion of the slurry amount to the air intake to determine the size of needed foam holes; feeding a piece of base cloth, heating to iron, feeding, and putting into a baking oven to finish processing the base cloth; and finally printing directly on the surface of the synthetic leather taken out of the baking oven. The printed synthetic leather manufactured by adopting the method has good breathability and extraction resistance, can resist the irradiation of ultraviolet light, hydrolysis, cold bending and wear, can not become yellow, age and mildew and reaches the international advanced flame resistance standard. The process for manufacturing the printed synthetic leather is simple and has the advantages of saving energy and reducing consumption.

Description

technical field [0001] The invention relates to a synthetic leather and a manufacturing method thereof, in particular to a printed synthetic leather and a manufacturing method thereof. Background technique [0002] At present, synthetic leather products have gradually become a popular trend in the future. Synthetic leather has been widely used in the production of luggage, clothing, footwear, car interiors and other products. In the manufacturing process of known artificial synthetic leather, no matter base material or the manufacture of face skin all used a large amount of solvents, and it can cause serious environmental pollution, contains dimethylformamide (being called for short DMF) as in the solvent used in wet synthetic leather, can Absorption through the skin or inhalation through the lungs can cause poisoning. It is a listed toxic chemical. According to regulations, the factory must be equipped with equipment for gas collection, water washing and waste gas treatment...

AI Technical Summary

Problems solved by technology

In the manufacturing process of known artificial synthetic leather, no matter base material or the manufacture of face skin all used a large amount of solvents, and it can cause serious environmental pollution, contains dimethylformamide (being called for short DMF) as in the solvent used in wet synthetic leather, can Absorption through the skin or inhalation through the lungs can cause poisoning. It is a listed toxic chemical. According to regulations, the factory must be equipped with equipment for gas collection, water washing and waste gas treatment. The factory and the government must also monitor and record the treatment process at any time. Therefore, the treatment of waste water and waste gas is time-consuming and laborious, and a little carelessness will cause serious pollution consequences

[0003] Another dry synthetic leather manufacturing process is the use of resin coating method, which uses methyl ethyl ketone (referred to as MEK) can cause acute toxic hepatitis in the human body, and xylene is highly flammable and can be easily burned by heat, sparks, etc. , the flame is ignited, it is easy to cause a fire, and it will pollute the air and water.