Wuxi Poly New: Promote Direct Spinning Polyester Flexible Production, Help The Development Of Chemical Fiber Industry!

In the 70th anniversary and 70 years since the founding of new China in 2019, fundamental changes have taken place in China's textile chemical fiber. From the lack of clothing to the present age, the level of differentiation and functionalization of conventional chemical fiber varieties, such as polyester, nylon, regenerated cellulose fiber and recycled chemical fiber, has been continuously improved. From clothing to green, blue, black and grey, to colorful and colorful colors, from the "Dacron" to the high-tech multi-functional clothing, China's fiber varieties are increasingly enriched to meet the needs of people's lives, which is inseparable from the integration and interaction of the upstream elements of the chemical fiber industry with masterbatch, oil additives and additives. In the progress of innovation elements in chemical fiber technology, the role of melt injection technology, known as the great transformation of melt direct spinning industry, should not be underestimated.


Melt injection technology refers to the technology of producing differential and functional fibers through the addition of another modified material (such as colored masterbatch and modified master batch) in the direct spinning process of chemical fiber melt through specially designed equipment and technological means. The flexible production of polyester polyester fiber with large capacity has been realized and the high quality development of China's chemical fiber industry has been promoted. When it comes to melt injection technology, many people will mention Wuxi poly Technology Co., Ltd. This obscure enterprise has experienced many bitterness from paying attention to the differential manufacturing of chemical fiber to the 90% market share of polyester direct spinning industry. Since 2010, poly new injection system has been successfully launched in ten years, and has been transformed into melt injection system in many famous melt spinning enterprises in China. On the basis of this, the overall solution of melt injection technology for chemical fiber has been put forward, which has been approved by applied enterprises. The industry has been praised as "great changes in the melt spinning industry". Gu Zijiang, who has always been a low-key Wuxi poly new chairman, just smiled humbly: "we just grabbed a chance over others."


Work keeps fiber but people do not know.


Good friend of chemical fiber functional and differentiated development


The development of chemical fiber industry is inseparable from the great attention of the state and the vigorous support of policies. In the 1999-2004 year, the national development and Reform Commission and the former State Economic and Trade Commission continued to implement the "differential chemical fiber" national debt technical transformation project to accelerate the technological progress and product upgrading of the chemical fiber industry. However, polyester fiber, which occupies a large share of China's chemical fiber industry, is mainly produced by melt direct spinning process. Because of poor production flexibility and single variety structure, the process can not meet the special needs of the market and high value-added varieties. Although the production process of polyester fiber can meet the diversified needs of the market, the production process is difficult to control due to the retention time of the masterbatch in the pipe, which may not meet the requirements of the latter weaving. For this reason, the industry has been looking for the production method of producing many kinds of differential functional fibers through blending auxiliaries directly on the melt direct spinning pipeline and adding modifiers.


Gu Zijiang was keen to see this business opportunity and began to study the device. "At that time, there were some such devices abroad, but they just put the master batches in, and mixed them with static mixers. The effect was not good. They could only make some staple products, and the quality of the products was not too high. They were not suitable for filament products." Gu Zijiang introduced, "this device is very critical is the mixer, if the mixing degree is not enough, the product will have chromatic aberration, the effect is not good, or even not qualified; mixing time is too long, the baton will be degraded, spinning will appear broken ends, so the mixing degree must grasp well."


After that, Gu took the lead in the research and development of enterprises, and began trial production and research and development in major chemical fiber enterprises. Finally, in 2010, the first domestic melt injection system with independent intellectual property rights was successfully developed. The system uses dynamic mixers to solve the above problems effectively. After the successful R & D of the system, large scale melt direct spinning enterprises such as Tung Kun, Heng Li, Heng Yi, Sheng Hong, Xiang Lu, Xiamen and other large scale enterprises have introduced them to a large extent, and have greatly improved their market competitiveness. At present, 90% of the direct melt spinning enterprises in China are new customers. Even new chemical products can be seen everywhere in chemical fiber enterprises such as Korea, Malaysia, India, Indonesia, Thailand, Turkey, Taiwan and other countries.


It is hard to make a bow.


Fast growing partners in chemical fiber industry


The production of differential and functional fibers is one of the important indicators of the high quality development of the chemical fiber industry. Therefore, the development and production of functional masterbatch has also become a hot spot in the industry. With the successful application of the new dynamic blending melt injection system in the direct spinning production line, the application range of the masterbatch product in the chemical fiber production is extended from the sliced spinning to the melt direct spinning production line, and the volume of the product is wide.


Zhejiang Hengyi polymer Co., Ltd. is the first enterprise in China to develop black silk products using the new melt injection system of Wuxi. At present, it has more than 20 sets of equipment, and is the largest domestic enterprise. Speaking of the development of black silk products with Hengyi, Gu Zijiang introduced that at that time, the competitiveness of the large matting filament of large chemical fiber enterprises in the market was very strong. Hengyi was faced with the challenge of upgrading and developing new products, and decided to develop a black silk product with a large market demand. However, compared with other colored yarn production processes, black silk has many problems. Its concentration is relatively larger and its fluidity is poor, so it is easy to plug the spinneret. "After 3 years of continuous research and development, our two companies finally set out a set of black silk production system. The difficulties and hardships now seem to be incredible. We can say that Hengyi helped us make striding progress in the research and development of the system," said Mr..


Wang Xingang, assistant general manager of Hengyi polymer, also said: "along the way, I think that the new device can be said to be a milestone in the chemical fiber direct spinning industry, and its contribution to the development of the industry is obvious." First of all, the technology upgrading of the chemical fiber industry has been promoted, and the grades of chemical fiber products have been upgraded. Secondly, the consumption brought about by the replacement of products has been reduced. The traditional sliced spinning will produce a large number of transition wires when changing the color masterbatch, resulting in the chromatic aberration of the products, and the amount of waste silk in the on-line injection system is less. Thus, this problem is avoided. Third, the national resources have been saved. If not direct spinning online replacement has been successful, in recent years, nearly 3 million tons of chip spinning production lines are expected to emerge, which will generate countless duplication of investment. Fourth, leading the Chinese chemical fiber industry to the world, leading from running to running.


Further progress


The overall solution of melt injection in the era of chemical fiber manufacturing


Although it has achieved very good results, Gu Zijiang is not satisfied with the status quo, but closely follows the development of industry intelligence, and focuses on how to help chemical fiber enterprises reduce costs and enhance their core competitiveness.


For the wide market share of the new melt injection system, Gu said that there was also a problem of plagiarism, but he was not concerned about it because he believed that the key link in the new product was not being plagiarized, that is, ten years of data accumulation.


"In the past ten years, we have been collecting data from user enterprises, thus forming an intelligent diagnosis system. Once a user has a problem and the data can be reflected, we can diagnose and improve it immediately. " At present, the intelligent diagnosis system has been successfully applied to the melt injection system and has been highly recognized by users.