"Textile Lights" Set Up In Shaoxing To Promote Hemp Fiber Degumming Technology.

In August 21st, it was organized by the textile optical technology education foundation, the China hemp textile association and the China Textile Industry Federation's science and technology development department. The Guangshan white shark needle Clothing Co., Ltd., Yida textile machinery (China) Co., Ltd., Shao Xingyong Shun dyeing and Printing Co., Ltd., green Zhang (Beijing) New Energy Technology Co., Ltd., Beijing Certification Center Co., Ltd. and Sun Wu County People's Government jointly organized the "textile light" hemp fiber degumming and product processing new technology promotion conference held in Shaoxing.

Ye Zhimin, executive vice president of the optical technology education foundation, Dong Chunxing, President of the China Textile Association, Dong Chunxing, deputy director of the Ministry of science and technology development of China Textile Industry Federation, Wu Zhen, Zou Feng, general manager of Guangshan white shark Knitting Clothing Co., Ltd., sales director of Yida textile machinery (China) Co., Ltd., Rong Yun, Shen Zhiqi, President of Shaoxing Yong Shun dyeing and Printing Co., Ltd., Zhang Shifu, manager of textile Project Department of Beijing's New Energy Technology Co., Ltd., Zhao Fangmei, deputy director of Sun Wu County Development and Reform Bureau, Ju Xiaojiang and relevant industry experts and business representatives attended the promotion conference. The meeting was chaired by Zhang Chengze, vice president and Secretary General of China Textile Industry Association.

Dong Chunxing, President of the China Linen Textile Industry Association, said in his speech that hemp spinning is a relatively small sub sector, but the scale of the promotion of scientific and technological achievements is not small. This also shows the urgent need for technological progress in the industry. The linen textile association also hopes to provide an opportunity for communication, learning and communication through this platform. It also hopes that through communication, we can promote scientific and technological progress in the industry, shorten the technological process, improve product quality and reduce labor costs. I believe that through continuous efforts, the linen textile industry will become better and better. The linen textile industry is a very promising industry. In the next three to five years, the linen textile industry should have a leap forward development. You will become a witness to the future of the linen spinning industry and share the fruitful achievements of the industry.

Ye Zhimin, executive vice chairman of the textile science and technology education foundation, said in his speech that the Promotion Committee's professionalism and public welfare are very strong. The theme of the conference is about hemp fiber degumming. Hemp fiber degumming is a key problem affecting the development of the industry to a large extent. Many textile institutions and enterprises are concerned about this problem and have made many related research results. The linen textile industry is a traditional industry. It is hoped that experts' enterprises can play their respective roles by promoting this technology extension. Through this activity, we can promote the technological progress of the textile industry and promote the overall development of the industry.

Ye Zhimin introduced the basic situation of the textile optical technology education foundation. The predecessor of the textile optical technology education foundation was the "Qian Zhi Guang science and technology education fund" established in 1996 by the Minister of textile industry, Qian Zhiguang's last wish. In 2008, it was sponsored by the China Textile Industry Federation. The state owned assets supervision and Administration Commission of the State Council was officially registered in the Ministry of civil affairs of People's Republic of China, and was officially renamed the textile science and technology education foundation. Over the years, the foundation has been strongly supported by industry insight and enterprises with a sense of social responsibility. The fund is mainly used to subsidize China's textile and garment industry in terms of scientific and technological progress and scientific and technological popularization, as well as to reward outstanding textile and garment majors and first-rate excellent workers.

At the meeting, Ye Zhimin gave donation certificates to the Guangshan white shark Knitting Clothing Co. Ltd. and the Textile Machinery Co., Ltd.

Li Yuling, Professor of textile School of Donghua University, made a speech on the development of bioreactor degumming technology. At present, the methods of hemp degumming mainly include traditional retting, chemical degumming and biological degumming. These methods play a certain role in hemp degumming, but there still exist bottlenecks in technology. The new idea put forward by Li Yuling in his speech is based on the continuous flow degumming of the anaerobic bioreactor (patent), in order to achieve the effect of high efficiency, stability and controllability. The technology will thoroughly solve the problem of degumming pollution: pure biological treatment technology, without adding any chemical agents, without producing any toxic and harmful substances, and environmental protection. To solve the problem of low efficiency of degumming time: the core equipment of the process is a bioreactor, which uses conventional biological strains, and the average degumming time is 2~3 days. To solve the problem of high cost of degumming, the bioreactor in this technology takes the gum of sesame as a nutrient substance, and has the function of microorganism's own cycle regeneration. Once it is put into operation and runs for a long time, there is no intermediate preparation cost and the operation cost is very low. To solve the problem of unsatisfactory degumming effect: a unique microbial gradient acclimation technology was used to domesticate strains with low cellulose damage and good colloid treatment effect. The core technology is mature and reliable, and the application risk is small: the bioreactor has clear theoretical research on the distribution of bacteria, translocation behavior and rheological behavior of the bacteria. 50M3 level operation is stable, the installation site has no special requirements, the occupation area is small, the risk of scale application is small, and the safety factor of anaerobic bacteria used is high.

Chen Yufeng, technical director of Guangshan white shark Knitting Clothing Co., Ltd. analyzed the quality advantages of hemp fiber combing new equipment. The development of hemp spinning technology has experienced the development stages of the hemp spinning combing, the linen spinning equipment cotton type, the hemp spinning process refinement, the hemp spinning blended normalization, the hemp spinning yarn finely branched, the hemp spinning product high-grade, the production process highly efficient, the development of the hemp spinning technology has changed greatly, especially in the new core spun yarn, vortex spinning, rotor spinning, combed yarn, high count yarn, light fabric, green environmental protection fashion and so on. During the carding process, there are problems such as fiber loosening, fiber refinement, fiber combing, fiber transfer, fiber friction and so on. Chen Yufeng introduced the principles and advantages of the new type of hemp spinning equipment, including new type of pine needle clothing, new flexible pine grooming needle roller clothing, flexible carding tin linen clothing, new high transfer, strong control doffer, new transverse thick high density cover plate, shallow tooth dense toothed cover plate, and surface coated combed cylinder fiber to reduce fiber damage.

Chen Yufeng concluded that the development of hemp fiber spinning technology resulted in seven problems in the carding process: insufficient carding, large fiber damage, poor insertion of multi needle clothing, poor effect of combing and removing short linen, unwearable use of card clothing and wide range of spinning. In order to solve these problems, new designs, such as thin tooth tips, high hardness, flexible combing, surface strengthening, and strong combing and combing, can be used in opening, carding, combing and carding processes to solve the problems of large damage, poor miscellaneous discharge, too much knot and undurable clothing, etc., so as to effectively improve the carding quality of hemp spinning.

Zhao Fangmei, manager of textile Project Department of Beijing Certification Co., Ltd., introduces the market trend and certification procedures of organic textiles. Zhao Fangmei explained and introduced the market trend and the organic certification process: the proportion of international brand participation in holding organic products will continue to increase, and the market demand will continue to grow. The GOTS standard is the choice of high-end niche brands, but the interest of fast brands will grow. Organic fiber varieties, organic linen, organic wool, organic silk, organic cashmere have been emerging, but organic cotton products are still the main varieties. China's potential demand for organic textile market is very large. In 2019, China's organic and recycling enterprises grew significantly.

Xu Qian, client manager of Beijing Certification Company Limited, introduced the market trend and certification process of organic agriculture.

Yuan Baowei, chairman of Shanxi oasis Textile Co., Ltd. made a speech on the theme of flax pattern unchanged, and the booming development of cannabis. From the perspective of linen cultural route and hemp functional line, Yuan Baowei analyzed how to make the brand and consumer market better accept the hemp fiber and the development positioning of hemp products. At the same time, the technological process and conclusion of hemp products are detailed. The technology of hemp production should be widely used for reference, such as flax and ramie mature technology. It is introduced, transformed, implemented and summarized, and PDCA cycle is continuously realized. Hemp, jute, linen and ramie are 4 kinds of fibers that are most exposed to human life. If the fibers are used to define these fibers, the conclusion is that hemp fiber must be obtained by degumming, and jute can not be obtained by degumming. Only one method can be used: combing; flax can be obtained by degumming to obtain process fibers, and also can be obtained through carding; ramie and hemp like fiber are also obtained through degumming.

Yuan Baowei recommends that practitioners comply with industry standards and abide by the integrity of the industry. "Buy the best linen in the world, spin the best yarn in China, weave the best cloth in the industry, and weave the world's most flat weave, and you will always be invincible in the field of textiles. "Any enterprise that uses such a concept to regulate its own development will remain invincible.

Technology Extension

New degumming technology for hemp fibers by electrochemistry

Zhu Ruoying, associate professor, School of textile science and engineering, Tianjin University of Technology

We should remove the associated impurities as far as possible while ensuring the fineness of flax fiber, but we still need to retain some pectin and lignin as the bonding point between fibers, so as to ensure the length and impurity of the fiber. Compared with the chemical degumming process, the new degumming technology used in the electrochemical process is shortened: the production cycle of degumming is shortened; the biochemical reaction under mild conditions takes the place of strong acid, strong alkali, "pickling", "one boiling" and "two boiling" processes at high temperature, and eliminates the negative effects of strong alkali and strong alkali on fibers at high temperature. The production rate is greatly improved, and its spinnability is greatly improved, such as the strength of single fiber and the abrasion resistance of fibers. The technical advantages include: the treated hemp fibers have better division and whiteness, less strength loss, and better spinnability than traditional treatment methods. The process conditions are relatively mild: low temperature, near neutral, short time, high efficiency and low energy consumption. After washing, the energy consumption is small, and the pretreatment liquid can be recycled repeatedly, which significantly reduces the consumption of water resources and the burden of waste water treatment. The degumming technology also has the effect of degumming and mineralization of degumming residues, so the degumming wastewater can be discharged or continued to be used after simple treatment.

Conclusion: electrochemical application has excellent removal effect on the accompanying organisms of hemp fiber. After treatment, the hemp fibers have better splitting and whiteness, less strength loss, and better spinnability than traditional treatment methods. The obvious advantages are: the processing conditions are relatively mild: low temperature, near neutral, short time, low energy consumption after washing, and the reuse of pretreatment fluid can significantly reduce the consumption of water resources and the burden of waste water treatment and treatment, and low energy consumption.

Technical features of R9500 rapier loom

Rong Yi, sales director, Yida textile machinery (China) Co., Ltd.

The rapier loom of Yida textile machinery has been covering all fields of the textile industry. It shows the application of the new high-speed rapier loom products and the high-speed rapier looms in the fields of wool, linen, silk and home textiles through video demonstration.

Yida textile machinery also aims at the characteristics of the linen textile industry, and specially introduces a patented "no left side waste side" weaving technology, so as to reduce the waste of the high value yarn such as hemp and other independent waste, and each loom costs 5-8 yuan a year.

SEDO system helps linen spinning industry to realize intelligent production

Zhang Shifu, general manager of green Zhang (Beijing) New Energy Technology Co., Ltd.

According to their own advantages, to help printing and dyeing enterprises to achieve automation, intelligence, digital production of successful cases. 1, more than 95% of the data can be automatically acquired by the system without manual input. Data is timely and accurate; 2, the whole system closed loop control, there is no logical opening, or loopholes in the rear door; 3, plan management and production process management basically realize artificial intelligence, the system can get rid of the interference of human factors to the maximum extent; 4, the system directly controls the machine platform, comprehensively controls the energy source and resource consumption and equipment efficiency. Managers can monitor every minute time, the cost and the flow of each penny cost; 5, a standard control interface solution can be compatible with and control all brand equipment; 6, precise control, improve efficiency, save energy, save people; 7, multi system integration, reduce investment waste; 8, summarize, induce and precipitate, transfer from human brain to computer, change experience into knowledge rule, form enterprise permanent production knowledge base.

Ammonium oxalate enzyme combined degumming process for hemp hemp skin

Zheng Zhenrong, associate professor, School of textile science and engineering, Tianjin University of Technology

Hemp fiber has the characteristics of bacteriostatic health, anti ultraviolet radiation, moisture absorption, breathability, sound absorption, sound insulation, antistatic, soft and itchy products. It is an eco-friendly and promising green fiber. Degumming is the key factor to determine the quality and application value of hemp fiber. In view of the rich pectin content in the hemp skin, a "salt biological enzyme" joint degumming process is developed. The degumming solution is a pectin extract. It can not only make the hemp fiber degumming, but also turn waste into treasure, reduce the discharge of sewage, and improve the utilization value and economic efficiency of hemp. Ammonium oxalate has strong metal complexation and can be chelated with calcium ions in calcium pectate to form soluble ammonium salts and increase the solubility of pectin.

The combination of salt biological enzyme and degumming is summarized as follows: 1, using ammonium oxalate biological enzyme combined degumming process, the fiber strength is high and the friction coefficient meets the spinning requirements. 2, the residual gum rate of the fiber after degumming with ammonium oxalate and biological enzyme is as low as 2.34%, the fiber whiteness is high, the antibacterial property is better than that of the traditional hemp degumming and chemical enzymatic degumming of hemp fibers. 3, the antibacterial rate of the fibers after dyeing is decreased, and the antibacterial properties of reactive dyes and direct dyes are better than those of vat dyes. 4. The effect on the antibacterial properties of hemp fiber: NaOH>Na2CO3>NaCl.

Deepening industrial cooperation to create a better future

Ju Xiaojiang, deputy director of Sun Wu County Development and Reform Bureau

As the hometown of hemp in China, Sun Wu county is committed to building the largest planting core area and processing agglomeration area in the country, providing first-class services, first-class environment and first-rate raw materials together to draw the spring of linen textile. The overall goal of Sun Wu's hemp industry development planning industry development is to actively create the core area of Chinese hemp (cold land industrial hemp) planting area, accelerate the construction of hemp Industrial Park in Heilongjiang (Sun Wu), vigorously develop hemp culture, enhance the development level and brand value of Sun Wu hemp industry, realize the "right to speak" in the hemp market, and strive to build a whole industrial chain development pattern with standardized planting, intensive processing, logistics marketing and cultural support.

Design, development and fashion trend of household hemp products

Mo Zhenen, textile engineer of happy home textile Co., Ltd.

The linen textile industry is a traditional textile industry in China. Although it is only a small branch in the textile industry, it has maintained rapid development in recent years, and has formed a relatively complete industrial chain from "raw material cultivation, fiber production, spinning and weaving, printing and dyeing finishing, terminal products". Linen textiles, which are cool, crisp and healthy, are increasingly popular among people. The flax staple fiber produced in the hemp spinning process can be used to further produce fine linen blended yarns and fabrics on cotton spinning equipment. It also meets the requirements of environmental protection and health care products. In order to overcome the defects of poor elasticity, wrinkle resistance, harsh itching and poor fiber holding capacity of linen fabrics, it is through the combination of two or more groups of fibers with different properties to increase the cohesion between fibers, so as to improve the spinnability of flax fibers, improve their comprehensive yarn properties, expand the wearing properties of linen fabrics, and improve the value of noil. The hemp blend product can maintain the excellent functional properties of the hemp, while effectively solving the "pain spot" of the traditional hemp fabric which feels rough and itchy, and improves the comfort and skin affinity of the fabric.

The production of high value-added terminal products has become an inevitable way for the development of the linen textile industry. The establishment of a complete industrial chain of fiber spinning, weaving, dyeing, finishing and finished products, the joint development of upstream and downstream enterprises, and the development and innovation of ramie textile products are imperative.

After the meeting, participants and representatives of enterprises visited Shaoxing Yong Shun Printing and dyeing Co., Ltd. At the same time, the representatives of the participating enterprises were still reluctant to discuss the contents of the technology promotion.