Breakthrough in filament equipment
　　
The adhesive filament used in ChinaSpinning equipmentMost of them are non continuous filament spinning equipment. Experts have pointed out that the biggest weakness of non continuous and semi continuous models is not only the small size of the silk cake, short silk strands, multiple contacts, and unsuitability for the process requirements of high-speed looms, but also the differences in physical indicators between the inner and outer layers and the unsatisfactory dyeing performance of the adhesive long silk cakes produced by these devices; At the same time, the spinning speed of the equipment is low and the production cycle is long; Shortcomings such as excessive occupation of factories, equipment, funds, and significant environmental pollution also need to be further addressed. The continuous spinning machine for viscose filament can integrate multiple processing steps such as spinning forming, water washing, drying and oiling, and winding into a tube into one machine, which can shorten the process, achieve process continuity, and achieve the goal of energy conservation and emission reduction.
　　
filamentSpinning machineIt is a key equipment for the production of viscose filament, and new equipment, processes, and technologies such as viscose filament spinning machines demonstrate the new field and development direction of chemical fiber machinery from one aspect.
　　
However, due to various reasons, the production technology of viscose filament in China is still at the level of the 1960s, and most production enterprises still continue the semi continuous spinning process, which has problems such as long production cycle, high labor cost, and low product quality.
　　
To promote the development of adhesive filamentSpinning machineWith the advancement of technology and overcoming the shortcomings of semi continuous spinning machines, Handan Textile Machinery Company and Hongda Research Institute Co., Ltd. have successively developed adhesive filament continuous spinning machines. These products integrate traditional spinning, solidification, acid washing, drying, oiling, and winding, shortening the process from spinning and forming to finished product winding from over 90 hours to just a few minutes. These new processes, technologies, and equipment have gradually been accepted by silk weaving enterprises and have received high praise. At present, these two companies have launched more than 20 adhesive filament spinning machine production lines. The continuous spinning machine of Hongda Research Institute Co., Ltd. has formed mass sales in the European market; The continuous spinning machines of Handan Textile Machinery Company have also been sold to countries and regions such as India and Thailand.
　　
Energy conservation and environmental protection are still a hurdle
　　
Although the technical equipment of China's adhesive fiber production enterprises has greatly improved, there is still a considerable gap compared to the level due to problems such as low automation and continuity, small single machine capacity, low single line production capacity, and high energy consumption. Although some domestic enterprises have successfully developed continuous spinning machines for viscose filament, research and development are still needed on their front and rear equipment and processes.
　　
The inherent shortcomings of viscose fiber production mainly lie in the fact that various chemical raw materials added during production are almost discharged in the form of "three wastes" after chemical reactions. The production process not only consumes a large amount of electricity, but also requires the use of a lot of steam, water, and chemical additives. Some old production methods used by enterprises also maintain washing processes, which causes greater pollution to the environment.
　　
Some experts point out that in the foreseeable future, introducing and digesting * technology to reduce production process pollution, and developing new products from innovative production processes and equipment will become the main direction for the development of viscose fibers. For example, some domestic and foreign enterprises have developed adhesive filament continuous spinning machines that shorten the original 95 hour production time to 5 minutes through processes such as pipe forming, drip washing, guide wire drying, and winding forming. This is worthy of promotion and advocacy.
　　
Recently, the Ministry of Industry and Information Technology of the People's Republic of China issued the "Guiding Opinions on the Structural Adjustment of the Textile Machinery Industry", which mentioned in the attachment "Key Points of Technological Progress and Technological Transformation in the Textile Machinery Industry" the development of energy-saving, emission reduction and environmental protection equipment. In the future, China will focus on supporting the development of environmentally friendly chemical fiber equipment - "10000 ton new solvent method cellulose fiber complete production equipment". Compared with the traditional production process of viscose fiber, this complete project eliminates the processes of alkali impregnation, aging, yellowing, and maturation, and the spinning process is basically the same as viscose. The processing method of this new environmentally friendly cellulose fiber, "Tencel" fiber, is worth learning from for viscose fibers. If textile machinery manufacturing enterprises pay attention to the current needs of user enterprises while also paying more attention to the future development trends of products, and consciously strengthen cooperation with downstream powerful enterprises, the leading equipment with market potential can be launched as soon as possible, and the long cherished wish of domestic textile machinery to win in the "Textile Olympics" will also be realized as soon as possible.