The orientation of adjustment and optimization of printing and dyeing auxiliaries industry is clear
"The future direction of industrial adjustment and optimization should be based on scientific and technological innovation, research and development of new, multi-functional and distinctive environmental friendly additives, improve production efficiency, reduce pollutant emissions, accelerate the adjustment and optimization of industrial structure to meet the requirements of high quality, high comfort and high safety textiles." On October 18, at the Kefeng National Symposium on Textile Printing and Dyeing Auxiliaries held in Jiangsu Province, experts and enterprises attending the symposium reached such a consensus.
Lin Lin, secretary-general of China Printing and Dyeing Industry Association, said that printing and dyeing auxiliaries are indispensable for textiles to improve their performance and added value, and also one of the sources of harmful substances introduced into textiles. On the one hand, improper use of printing and dyeing auxiliaries can easily lead to harm to human health in the process of wearing or using textile products; on the other hand, almost all auxiliaries and some dyes after printing and dyeing processing will remain in wastewater and become the main pollutants in wastewater. She pointed out that dyeing auxiliaries should be developed in the direction of safety and non-toxicity, attaching importance to the implementation of international standards such as Oeko-Tex Standard 100 (2006 edition) in Chinese textile chemicals, strictly prohibiting the use of prohibited and restricted substances in textile chemicals, and developing new green products that meet the requirements of safety and environmental protection.
Kang Baoxiang, Secretary-General of China Dyestuff Industry Association and Director of Textile Printing and Dyeing Auxiliaries Committee, said that in view of the new needs of the textile industry, auxiliaries enterprises should increase their R&D investment and focus on developing eco-safe printing and dyeing auxiliaries suitable for new dyeing and finishing technologies. For example, the development of green and environmental friendly new printing and dyeing auxiliaries, focusing on the development of deoiling agents with emulsifying and cleaning power, to solve the core problems of low temperature, low foam and low COD in pretreatment products; second, using nano, biological, microemulsification and slow-release technology to modify traditional printing and dyeing auxiliaries, to obtain high-efficiency auxiliaries with a variety of special functions; It is to develop low carbon, short process, high function and high value-added additives, including high specificity, high function, low temperature type and multi-function additives. Fourth, it is to develop additives for intelligent textiles and high performance industrial textiles.
In addition, during the 13th Five-Year Plan period, the printing and dyeing auxiliaries industry should accelerate the replacement of banned substances such as perfluorooctane sulfonyl compounds (PFOS), perfluorooctanoic acid (PFOA), nonylphenol (NP), nonylphenol polyoxyethylene ether (NPE), and promote the healthy development of printing and dyeing auxiliaries in a safer and more environmentally friendly direction.
In view of the above innovative research and industrial development trend, domestic printing and dyeing auxiliaries enterprises are already in action. Li Yunfeng, general manager of Zhejiang Kefeng Organic Silicone Co., Ltd., said that the block silicone oil produced by the company has been used in printing and dyeing field, and textile products feel better than those using traditional amino silicone oil. According to Wang Shuhua, director of the National Fluorine Material Engineering Research Center, the fluorine-containing and easy-to-decontaminate finishing agent developed by the center not only has perfluoroalkyl oil-repellent groups to ensure that textiles have oil-repellent, water-repellent and anti-fouling effects in the air, but also hydrophilic groups such as carboxyl and hydroxyl groups, which give textiles certain hydrophilicity and enhance it properties. It is easy to decontaminate when washing in water.
At the meeting, Tian Liming, vice president of China Dyestuff Industry Association, read out the list of top 20 enterprises in printing and dyeing additives industry in 2015.