Textile Enterprises Take The First Step In Green Production

Biological enzyme pretreatment experiment site

Largest in Hebei Province

The Hebei Ningbo Group held a press conference on desizing and refining biological complex enzyme preparation and dyeing pretreatment process, and the Tianjin Institute of industrial biotechnology of the Chinese Academy of Sciences released the latest textile complex enzyme preparation.

"Whether it's a guide or a graduate student, just go in.

They are no different from ordinary workers in the workshop. "

Gao Zhongqiang has worked in the textile industry for half a lifetime. He is an old employee of the original tin Textile Group, and is currently the manager of Hebei Textile Co., Ltd.

A few years ago, Gao Zhongqiang became acquainted with the scientific research team of song Chi, a researcher of the Tianjin Institute of industrial biotechnology of the Chinese Academy of Sciences (hereinafter referred to as the Tianjin Institute of Industrial Biotechnology), and realized that a composite enzyme preparation developed by them was suitable for the current cold reactor and long front processing technology of textile enterprises.

Song Qiao told reporters: "the enzyme preparation is specially used in the pretreatment steps of textile desizing and refining, instead of the traditional alkali treatment process. It will promote the pformation and upgrading of China's textile industry from the traditional high energy consumption, high water consumption and high pollution technology to green, environmental protection and sustainable development of new biological technology."

Energy saving and emission reduction is imperative.

Textile industry is one of the traditional pillar industries in China. It has important economic status and strong industrial foundation in China's light industry.

However, it is unavoidable that the traditional textile industry is also an industry with heavy pollution, high energy consumption and large water consumption.

Gao Zhongqiang found that in the traditional process of desizing, boiling, bleaching and mercerizing, a large amount of caustic soda and auxiliaries were used, which not only consumed a lot of water and energy, but also caused serious environmental pollution.

According to the statistics from Tianjin Institute of industry and technology, the energy consumption per unit of fabric in China is 2.4 times that of the world average. The traditional high temperature alkali dyeing pretreatment process consumes a lot of steam, alkali and chemical auxiliaries. Taking cotton fabric as an example, the treatment of 10 thousand meters of cotton fabric requires 300 tons of water. The temperature of the treatment process is 95~100 degrees, accounting for 45% of the total process energy consumption, and the fiber is easy to damage and the equipment is easy to damage.

Song Qiao pointed out that the above problems seriously restricted the development of China's traditional textile industry, and even some large traditional textile enterprises in China were forced to stop production under the pressure of environmental protection.

For this reason, she led the team to carry out the development of new enzyme preparation and green bio textile technology in view of the current situation of China's traditional textile industry.

The research direction has also been listed as one of the five key cultivation directions in the "135" plan of Tianjin Institute of industry and technology, and has also been strongly supported by the Tianjin science and technology support plan.

Research and development of compound enzyme preparation

Through close cooperation with Tianjin Tian Fang Group and Hebei textile material supply and Marketing Co., Ltd., song Chi team has developed three kinds of excellent textile enzyme preparations and their production processes, including amylase, alkaline pectinase, xylanase and catalase.

From a professional point of view, song Qiao explained that the compound enzyme preparation used for desizing and refining cotton fabrics can not only efficiently decompose starch and PVA (polyvinyl alcohol) slurry, but also efficiently and efficiently act on the pectin layer of the outer layer of cotton fiber, loosening or even removing cottonseed hull and not damaging cotton fibers.

Gao Zhongqiang introduced that the traditional dyeing pretreatment process includes five steps: singeing, desizing, refining, bleaching and mercerizing. The compound enzyme preparation developed by song Qiao team can merge the desizing and refining into one step and improve the efficiency of pre-treatment.

Among them, the pretreatment process of textile enzyme is carried out at low temperature. The treatment temperature of the enzyme long vehicle process is 50 ~ 55 C, the treatment temperature of the enzyme cold reactor process is 25 ~ 35 C, and each saves 50% and 25% of the steam. The enzyme cold reactor technology reduces the water washing process of a caterpillar drive relative to the alkali process, and saves 40% of the electricity consumption.

More importantly, enzymatic desizing and refining waste water contains no caustic soda and neutralization without acid. It can save a lot of water resources and acid reagents.

Therefore, compared with the traditional process, the pretreatment process of the cold reactor can save 50% of water consumption.

Because of the replacement of traditional caustic soda desizing process and caustic soda refining process, the enzymatic pretreatment process can reduce the amount of caustic soda by 40% in general, and can completely replace chemical refining agents. Therefore, the biological enzyme pretreatment process can significantly alleviate the pressure of wastewater treatment in spinning enterprises.

The compound enzyme preparation developed by song Qiao team can also reduce fiber damage, improve product quality, reduce costs and increase economic benefits.

According to the general worker of Tianjin Tian Fang Group project, in the application of the enzymatic pretreatment process of the textile group, the pretreatment of 12000 meters pure cotton cloth and 11000 meter aramid thermal wave kappa can reduce the cost by 30% and 70% respectively compared with the traditional alkaline process.

100 thousand successful application demonstration of rice cloth

From May 2013 to March 2015, the bio enzyme pretreatment technology developed by song Qiao team was applied in the pilot and pilot tests of military colored cloth, tent tarpaulin, crepe fabric and aramid series products.

After the completion of the pilot test of the textile group, the Tianjin workers and students reached a long-term cooperation intention with the Hebei Textile Alliance material supply and marketing company because of the relocation of the enterprises.

"Now, the two sides have joined forces to build a professional team integrating R & D, experimentation, production and marketing."

Gao Jianru, chairman of Hebei textile supply and marketing company, told reporters.

From March to June this year, the song song team successfully completed the application demonstration and promotion of 100 thousand meter cloth biological enzyme pretreatment process in Hebei Ningbo Group.

"This will provide scientific and technological strength for promoting the sustainable development of China's textile and dyeing industry, and will become a milestone in the development of the textile industry, and bring new hope to the textile industry."

Gao Jianru said.

Song Qiao said that the team will continue to cooperate with Hebei spinning alliance to improve the technology extension work, and form a technical support group to further serve the nationwide dyeing and printing enterprises. It is expected that the 10~20 textile enterprises will be promoted and applied in the next three years, and the cumulative additional profits will be 50 million to 100 million yuan.

She hopes that the bio enzyme pretreatment process can promote more textile enterprises to take the "first step" from traditional process to green production, and bring significant economic, social and environmental benefits.