The key reason is that the core technology is not fully mastered resulting in domestic production of acetate fiber plant is very small.
Acetate fiber was born in the early 20th century, in the early 1920s by the British trial success and industrial production, currently in cellulosic fibers is second only to viscose fibers of the second largest varieties. Acetate fiber can be used in the manufacture of textiles, cigarette filters, sheet base, plastic products and so on.
At present, the total global production of acetate fiber is about 750,000 to 800,000 tons, accounting for 3% of the world's total production of chemical fibers, cellulosic fibers accounted for about 35% of the production of which about 550,000 to 570,000 tons of cigarette tow, textile acetate fiber about 210,000 to 250,000 tons.
Expanded Information:
Related Uses:
Used in the manufacture of enteric coats of pharmaceuticals, acetate filtration membranes and so on, used in the manufacture of acetate plastics, cellulose acetate filtration membranes and so on.
Cellulose acetate, according to the different products can be divided into two vinegar spinning grade cellulose acetate, two vinegar plastic grade cellulose acetate, three cellulose acetate.
1, two vinegar spinning grade cellulose acetate: spinning grade products are internationally recognized and so far no alternative materials can be found for non-toxic, harmless products, it is the most important, the most important use is used as a filter material, especially cigarette filters with a very large amount of, in addition to being used as a medical filter material, such as blood filter material, etc.; at the same time, it can be used for spinning, with a silk luster, used as a senior The claim that the western-style clothing.
2, two vinegar plastic grade cellulose acetate: mainly used in the production of plates, sheets, the main products are eyeglass frames, advanced tool handles.
3, three cellulose acetate: mainly used as electronic film, such as LCD polarizer, film, camera film.
Baidu Encyclopedia - cellulose acetate