Leather Industry Research Focus: Artificial Leather Surface Treatment

The development of environmental friendly sanitary surface treatment agent is the research focus and development direction of the industry.

However, due to the difficulty of technology, there are few successful examples at home and abroad.

The water-based surface treatment agent developed by Stehr, the largest surface treatment plant in the world, is difficult to construct, poor in leveling and difficult to handle.

The price is high.

However, some of the artificial leather and synthetic leather waterborne surface treatment agents developed by some domestic units also have defects such as poor adhesion, hard drying and so on.

R & D of this project

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The surface treatment agent adopts environmentally friendly and hygienic alcohol solvent, which has the advantages of no change in user habits, strong adhesion, quick drying, excellent apparent performance and low cost.

At present, solvent based surface treatment agents are widely used in leather making and synthetic leather industry at home and abroad.

The solvents used are: butanone, toluene, xylene, two methyl formamide, cyclohexanone, and so on. Their environmental pollution and toxicity are large.

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Chou Zhenhua has been committed to the research of new technology and principle of jeans dyeing for many years. He is the technical director of the project. He is mainly responsible for the research and development of the technology of denim yarn, reactive dyestuff, wet short steaming, dyeing and finishing, cleaning and dyeing equipment, digital on-line detection and control integration technology, digital online collection system key technology research and development, modified liquid adding control technology, dyeing tank liquid balance balance water supply technology research and development, and the research and development of the antique style high-end colorful cowboy series products.

Main innovation points of the project

1. cowboy yarn coating and reactive dyestuff wet short steaming process technology, short process, realize salt free dyeing, compared with traditional cowboy yarn dyeing technology, 10000 meters through water saving 85%, energy saving more than 30%, basically realize zero discharge of waste water; denim yarn production process temperature and humidity control and salt free dyeing, enriching the variety of cowboy products.

2. independent research and development of clean dyeing equipment, digital online detection and control integration technology, digital online collection system key technology, to achieve precise temperature and humidity control technology in denim yarn production process, adding control technology of modified liquid, and water balance technology of dyeing tank.

3. development and preparation technology of unique modifiers, environment-friendly adhesives.

4. the dye is circularly distributed on the cross section of the yarn to meet the market's demand for the antique style colorful denim series products.

The project has built 1 clean and dyed yarn production lines for denim yarn. Through the implementation of this project, it can promote the synchronous development of the related textile printing and dyeing enterprises in China, and it has a positive and positive effect on the implementation of energy saving, environmental protection and cleaner production technology in the printing and dyeing industry.

In 2013, the sale of clean dyed denim fabrics was 7 million 200 thousand meters, with an additional profit of 11 million 730 thousand yuan and a tax of 5 million 570 thousand yuan.