Fast People Win First Step, Heng Shen Leads The Nylon Industry With Scientific And Technological Innovation.

In the field of nylon, Heng Shen holding group is undoubtedly the leader in the industry. Every action of it will attract the attention of the industry at home and abroad, and even affect the structure of the upstream and downstream industries of nylon. In 2009, Heng Shen took the lead in the nylon polymerization project in China, breaking the long dependence on imports of nylon 6 aggregate chips, and driving the rapid development of nylon industry in Changle and even in China. In October 2018, Heng Shen completed the acquisition of caprolactam from Forbont (formerly Holland DSM), becoming the largest supplier of nylon raw material caprolactam in the world, and took the lead in opening up a complete industrial chain of 8 links, namely, cyclohexanone caprolactam polymerization - spinning - warping - warping - weaving and dyeing.

Behind this can not be separated from the idea of insisting on technological innovation and the courage to be first. In fact, as early as 2011, Liheng nylon Technology Co., Ltd., under the Heng Shen banner, won the first prize in science and technology of the China Textile Industry Federation of textile industry, based on the technological innovation of "high capacity polyamide 6 polymerization and nylon 6 fully porous porous fine denier fiber manufacturing key technology and equipment". Today, Heng Shen's Changle Heng Shen synthetic fiber technology Co., Ltd. and Changle Liheng nylon Technology Co., Ltd., in cooperation with Donghua University, have also won the first prize of science and technology of China Textile Industry Federation in 2018 by virtue of the scientific achievements of "coarse nylon 6 monofilament and the key technology and equipment for spinning high speed spinning of one-step high speed spinning".

Project Name: key technology and equipment of high speed spinning of coarse denier nylon 6 monofilament and sub filament spinning

The main completion units: Changle Heng Shen synthetic fiber technology Co., Ltd., Changle Liheng nylon Technology Co., Ltd., Donghua University

The main accomplished people are Li Faxue, Chen Lijun, Liu Zhi, Ding Shanming, Wu Dequn, Li Yunhua, Zhang Zhentao, Zhang Zhentao, Jie, Mao, Mao Gong Gong, Yu, Hui.

Award: "textile light" 2018 China Textile Industry Federation first prize in science and technology

Independent innovation, production efficiency increased by 6 times.

In addition to the excellent properties of ordinary nylon 6, the coarse denier nylon 6 monofilament and polyester filament yarn also have the characteristics of short textile processing and rough products. It meets the aesthetic needs of people in pursuit of leisure, comfort and fashion, and is widely used in casual clothing, decorative cloth, shoe materials and other fields. Among them, the coarse denier nylon 6 monofilament has the strength of medium industrial yarn, outstanding abrasion resistance, excellent fabric resilience, and is very suitable for developing military uniform, military tent and rain cape, military rope and ribbon.

According to Chen Lijun, deputy general manager of project group and Heng Shen group, at present, the production process of coarse nylon 6 monofilament and splitting filament is moving from two steps to one step. The two step production process and technology are relatively mature, but the spinning speed is low, the output of the single machine is low, the product can be stored for a short period, and the humidity of the balance and storage environment is high. The one-step production process can finish spinning process, draft orientation of raw fiber, fiber heat setting and winding process on the same machine, and has the advantages of short process, high production efficiency and low energy consumption. Faced with the trend of market development, Chen Jianlong, chairman of the company, resolutely cled to tackle the difficult problem of high-speed spinning technology.

The company and Donghua University set up the project research and development team to carry out in-depth research on the key technologies and related equipment for the further spinning of coarse denier nylon 6 monofilament and filament yarns. In view of the objectives and tasks of the project, a lot of research work has been done on the key technologies, key equipment and spinning dynamics simulation of the industrialization of coarse denier nylon 6 monofilament and filament yarns, and the research results have been applied in the industrial application of Heng Shen synthetic fiber technology Co., Ltd. and Li Heng nylon Technology Co., Ltd.

This process is not smooth sailing. For monofilament, the difficulty lies in cooling and molding technology. For the raw silk, the biggest difficulty is the fiber splitting rate. In the past, the fiber required the holding, and the raw silk should increase the fiber splitting rate to facilitate separation. During this period, many experiments failed and industrial applications had an impact on the normal production of enterprises. Chen Jianlong continued to trust and support the research team as always. The technical staff persevered with the production experience to optimize the process and finally overcome the difficulties. A high quality monofilament and split filament yarn with a single filament size of 40D has been prepared at 4800m/min spinning speed. The production speed has increased by 6 times in the unit time. The spinning technology has been developed with the key equipment such as the special spray system of the split filament yarn, the two stage side blown bellows and the airflow rectifying composite cooling system for stabilizing the side wind speed, and the oil tanker system.

At present, the company has 6 64 spinning positions and 1 bit test production lines to produce coarse denier nylon 6 monofilament, forming an annual production capacity of 6 thousand tons. It has 1 sets of 64 coarse denier nylon 6 sub fiber production lines, forming an annual production capacity of 12 thousand tons, achieving a continuous and stable production operation.

The strength of science and technology has brought the quality of products to a new level. At present, the quality of the heavy denier nylon 6 monofilament products is absolutely at the leading level in the world. The product of the mother silk has achieved the highest level in the same industry with less than 3 times of broken wires of 100 thousand meters. The application of one-step high-speed spinning technology increased the competitive advantage of Heng Shen's products. In 2018, the company sold 15956 tons of monofilament and silk products, with sales amounting to 376 million 430 thousand yuan.

One step ahead of the decision, do it again.

In this regard, the authority of the industry also highly praised that the R & D results have increased the differential rate of nylon 6 in China, promoted the level of design and application of chemical fiber equipment in China, and played an important role in enhancing the competitive advantage of China's Nylon industry and building logistic support for the PLA. The one-step high-speed spinning technology adopted by the project has the characteristics of high efficiency, low consumption, low emission, low cost and high quality, which embodies the concept of resource conservation, green environmental protection and ecological civilization.

Speaking of the success of the project, Chen Lijun believed that the project originated from the enterprise, and the ancestors made the first move. "If you spend time researching and making decisions like general technology projects, products will be worthless." Therefore, rapid decision making is the soul of an enterprise. In the interview, Chen Lijun repeatedly referred to Chen Jianlong, chairman of the company. It was Chen Jianlong's full support that the project was successfully carried out. Especially when some people questioned the product performance and the number of production lines, Chen Jianlong always encouraged the project team: "leave him alone and do it again." Practice has proved that the function of monofilament products is changing user habits gradually. In some ways, it is leading consumption.

First of all, the innovation of enterprises requires people's new ideas and concepts. They do not follow the beaten track. They need a firm leader and experienced technical team. From beginning to end, Chen Jianlong, chairman of Heng Shen group, is concerned about the whole process of research and development. He fully trusts the R & D team, constantly urges the team to carry out technical tackling difficulties, and the team's R & D role can not be ignored. We often brainstorm together and make a lot of changes in detail with the idea of not taking the unusual road, and finally successfully complete the R & D task of the project. In addition, the help of downstream customers also accelerates the development speed and makes the products have a broader market.

"Innovation is more than just, there is no backward industry, only backward products. Only by persisting in continuous innovation, actively upgrading the level of technology and developing new products, can enterprises maintain vitality and the industry can continue to progress. Chen Lijun, the technology leader of Heng Shen, led his research team to take another look at the next innovation project. In the future, the industry will continue to feel the new surprises of Heng Shen.