Anhydrous dyeing process and production line of high-end environment-friendly PU leather base cloth

Abstract

The invention provides an anhydrous dyeing process and production line of high-end environment-friendly PU leather base cloth. The process includes the following step that greige cloth is sequentiallyand continuously subjected to cloth feeding, desizing, water washing, drying, rolling at room temperature, drying, color development and cropping. The process improves many problems caused by batch production of traditional leather base cloth with a dyeing cylinder. The anhydrous dyeing process and production line of high-end environment-friendly PU leather base cloth are ideal in design, each link is operated separately and independently, a production mode of an assembly line is formed, the production efficiency is greatly improved, and 50% labor can be saved. The water consumption is small,operation is performed just at room temperature, energy conservation and environment protection are achieved, energy consumption of dyeing is basically equal to zero, the dyeing rate is high, the prepared PU leather base cloth is high in strength, has no color difference, and the product quality is excellent. Meanwhile, the labor intensity of workers is reduced, operation is more convenient, flying nap, a dirty floor and dirty water can be effectively controlled, and the production environment in a workshop can be cleaner.

Description

technical field [0001] The invention relates to the field of textile dyeing and finishing, in particular to an anhydrous dyeing process for high-end environment-friendly PU leather base cloth and a production line thereof. Background technique [0002] The development of China's artificial leather and synthetic leather industry has become a new industry with great potential for development. Artificial leather and synthetic leather are developing rapidly and the market is expanding. Nowadays, leather products with various designs and colors can be seen everywhere in daily life, such as interior decoration, sofa Fabrics, automotive interiors, apparel, footwear and bags, and more. Take PU leather as an example, the PU leather is a kind of artificial leather, the lower layer is fabric (cloth) or non-woven material (non-woven fabric), the upper layer is coated with resin, and then undergoes various post-treatments to imitate natural leather materials, so The underlying fabric (c...

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Problems solved by technology

[0004] The invention provides a high-end environment-friendly PU leather base cloth anhydrous dyeing process and its production line. Its purpose is to overcome the unsatisfactory dyeing method of the existing PU leather base cloth, low production efficiency, high energy consumption, low product quality and sewage discharge. major defects

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