Key Technologies For High Efficiency Cold Pad Batch Pretreatment Of Cotton And Polyester Cotton Fabrics

Li Hanyu has been engaged in research and development of textile chemicals and its application technology for many years. He is responsible for the project. He developed special oxygen bleaching stabilizers and highly efficient scouring and penetrating agents. It achieved the effect of hydrogen peroxide stability and good dynamic infiltration, wetting, emulsification and washing under high alkali and high hydrogen peroxide concentration, and developed an efficient cold pad batch pretreatment technology for cotton and polyester cotton fabrics, that is, using high concentration of hydrogen peroxide and caustic soda in the same bath, the cotton fabric was stored at room temperature for 6~8 hours, and then passed through.

It can achieve the purpose of returning, boiling and bleaching.

Main innovation points of the project

1. through high alkali and high oxygen content

And highly efficient scouring and penetrating agents.

A high-efficiency cold pad batch process suitable for cotton and its blended fabrics was developed, that is, using high concentration of hydrogen peroxide and caustic soda in the same bath, the cotton fabric can be stacked at room temperature for 6~8h, and then washed efficiently to achieve the purpose of returning, boiling and bleaching.

2. the oxygen bleaching stabilizer for high efficiency cold pad batch process has been developed through the analysis and synergistic effect of permeability, alkali resistance, environmental protection, emulsifying power, chelating, dispersing and high oxygen resistance of raw materials.

3. a highly efficient alkali resistant scouring and penetrating agent for high efficiency cold pad batch technology has been developed. The product has good alkali resistance, dynamic infiltration, wetting, emulsifying and washing, so as to degrade fiber impurities and promote degradation of degradation products.

The special auxiliary oxygen bleaching stabilizer and high efficiency scouring agent penetrant agent have been sold for more than 200 tons, and sales income has reached nearly 3 million yuan, which has brought good economic benefits for the company.

Using this technology to produce cotton, polyester, cotton and other specifications of a total of 6 million meters, have achieved good results, sales revenue of 100 million yuan.

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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.