Som en viktig konstgjord fiber har acetatfiber använts i stor utsträckning inom många fält såsom textilier och filtermaterial på grund av dess unika fysiska och kemiska egenskaper . Enligt graden av ersättning av hydroxylgrupper i cellulosa av acetylgrupper kan acetatfiber huvudsakligen delas upp i två kategorier: Diacetatfiber och triacetatfiber {2 {2 {2 {2 {2 {2 {2 {2 {2 {2 {2 {2 {2 yta är för att vara en diberfiber i två kataliber med två katalfiber. pulp through acetification, dissolution, spinning, curling, drying and other processes. Among them, the spinning process is the key step, which determines the quality and performance of the fiber tow. The production process of triacetate fiber is similar to that of diacetate fiber, but the difference is that triacetate fiber is directly converted from type I acetate without going through a hydrolysis Steg . Detta gör att triacetatfiber har en högre grad av förestring och en mer stabil molekylstruktur .
China is an important market for cellulose diacetate tow, and demand has been growing steadily in recent years. In 2023, the market size of China's cellulose diacetate tow industry is 7.81 billion yuan, a year-on-year increase of 0.13%. With the increase in environmental awareness, the application of renewable Fibrer har gradvis ökat, vilket ger nya möjligheter till cellulosadiacetatbogsmarknaden . Med utvecklingen av tobaksindustrin, särskilt ökningen av nya tobaksfält, ökar också efterfrågan på cellulosadiacetatbogs. Samtidigt expanderar också tillämpningen av cellulosadiacetatbogs i textilier och kläder, medicinska filtreringsmaterial och andra fält.
Nyckelföretag
The global cellulose diacetate tow market is huge. At present, the total global cellulose diacetate tow production capacity is about 830,000 tons, with a total of 13 major manufacturers, including 6 foreign and 7 domestic. China's cellulose diacetate tow production capacity accounts for about 38% of the global total. In China's cellulose diacetate tow industry, the joint ventures between China National Tobacco Corporation and Celanese Corporation of the United States have performed particularly well. With advanced technology and strong market competitiveness, these joint ventures have an important position in the production capacity of cellulose diacetate tow in China and have become one of the largest domestic companies. This not only reflects the advantages of the Sino-foreign joint venture model in terms av teknik och marknadsintegration, men belyser också Kinas viktiga inflytande på detta område .
Nantong Acetate Co., Ltd. (hereinafter referred to as Nantong Fiber Acetate Co., Ltd.) is the earliest, largest and most technologically advanced Sino-US joint venture in China that provides research, manufacturing and services for acetate fiber products. The company was established in 1987. After the construction of Phases I to V, it has developed into a modern, internationalized large-scale industrial enterprise with a total investment of US$903 million, an area of 1,190 acres and 900 employees. Nantong Fiber Acetate Co., Ltd. focuses on the production of cellulose diacetate tow (referred till som bogsering) och cellulosa -diacetatark (kallas vinägerark), fyller två luckor i Kinas acetatfiberindustri . Skalan för företagets enskilda anläggningar rankas först i Asien och andra i världen .}
