Japanese artificial leather processing will completely bid farewell to organic solvents

by:JIYALI     2021-08-07
The dyeing industry not only uses a lot of water resources, but also uses a large amount of chemical substances such as dyes and auxiliaries. Therefore, under the background that high energy-consuming and high-polluting industries are restricted on a global scale, how to realize the development of enterprises under the premise of protecting the environment is an unavoidable problem for dyeing and finishing enterprises. The characteristics of the dyeing and finishing industry determine that it requires more efforts than other textile companies in environmental protection, such as carefully selecting raw materials and dyes, reducing the environmental load around the factory, ensuring the health and safety of employees, and the safety of finished products. Sexuality and environmental protection, etc. It can be said that dyeing processing calls for all-round environmental protection measures. From the perspective of dyeing and processing, environmentally friendly materials can be roughly divided into four categories: one is processing technology that does not use organic solvents in the production process; the other is production technology and technology that reduces environmental load; and the third is textile materials that are conducive to environmental protection. ; The fourth is the development of environmentally friendly products. At present, three dyeing and finishing companies, including Komatsu Refining Co., Ltd., Tokai Dyeing Co., Ltd., and Seiren, are striving to achieve eco-friendly and environmentally friendly production. Komatsu Refining Company takes environmental protection as a key issue of its business operations. In 1999, it issued the 'Komatsu Refining Environmental Management Declaration' and decided to implement corresponding environmental protection measures in each round of five-year mid-term planning starting in 2000. In the second round of environmental protection plan in 2004, measures were clearly proposed to reduce the discharge of organic solvents, promote the recycling and reuse of waste resin, and strengthen technological development to reduce waste discharge. Tokai Dyeing Co., Ltd. has changed the fuel used in all its factories in Japan to biochemical materials. According to estimates, this alone can reduce greenhouse gas emissions by 50,000 tons per year. At the same time, the company has also worked hard to reduce the discharge of harmful sludge. The discharge of harmful sludge in 2007 has been reduced to the level of 10% in 2005. Seiren Company, on the basis of studying the relevant regulations on the use of chemical drugs at home and abroad, has identified 372 chemical drugs that should be discontinued and restricted. In order to solve the problem of waste water's damage to the soil, the company also cooperated with dye manufacturers to propose solutions. At the same time, the company is also actively developing new materials that have a lower burden on the environment. Recently, Seiren successfully developed the production technology of easy-bleaching polyester fiber, which is conducive to the recycling and reuse of polyester fiber. In addition, the company's technological transformation in the production of artificial leather and synthetic leather has also been completed, marking that the processing of artificial leather and synthetic leather will completely bid farewell to organic solvents.
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