Viscose Rayon Embroidery Thread
Only artificial Rayon (review material typically Viscose)
Rayon is a man-made only first produced commercially. Rayon is made from materials derived cellulose (wood pulp, rags ...) and go through the process to form the fabric, so, in essence, quite similar to viscose cotton, the only other 1 of those in physics and chemistry. U.S. Commerce Association rules ingredient substitutes hydroxyl group may not exceed 15%. Rayon is produced by 3 methods constitute Viscose Rayon, cuprammonium (mixture of ammonium) Rayon, Cellulose Acetate and saponified. In only 3 products Viscose is the most widely used and lowest cost.
Viscose in apparel applications
Viscose được tạo ra từ quá trình viscose hóa, trong đó có sự tạo thành Natri Cellulose
(C6H10O5)n + nNaOH ---> (C6H9O4ONa)n + nH2O
sau đó phản ứng với CS¬2 để tạo thành Cellulose Xanthate
(C6H9O4ONa)n + nCS2 ----> (C6H9O4O-SC-SNa)n
Và được phun chỉ (wet spinning) trong dung dịch acid loãng để tạo thành sợi viscose
(C6H9O4O-SC-SNa)n + (n/2)H2SO4 --> (C6H10O5)n + nCS2 + (n/2)Na2SO4
Cotton cellulose polymerization degree ( degree of polymerization ) is 2000 units , and the level is 70 % crystallized . As for the conventional viscose just polymerization degree is 250-400 , crystallized degree is 25-30 % . The crystal structure of smaller viscose cotton 4-5 times and lower level navigation . Therefore, viscose yarn cotton yarn much weaker , although essentially the same, especially when wet . Viscose fibers will become softer and more supple cotton when wet . Reliability wet viscose 50 % lower than when dry . Because of low levels of crystalline and high impact levels should viscose prone to swelling when wet and swells over 20 % .
Viscose is mostly cellulose so the chemistry is like cotton . However, viscose chemical reaction with cotton and faster response even under conditions which proved quite durable cotton alkali characteristics as cold or hot dilute will attack and dissolve it viscose process requiring with caution .
Viscose yarn, cotton balls over and over cylindrical body with cotton , produced by the way , so in a higher quality cotton .
As we have seen, directly onto inkjet fabric can create a very good quality product. However, in order to improve the quality of the improvement in technology is not enough, but also depends on the type of ink depending on the fabric and material handling processes before and after in order to increase color fastness and 1 other properties.
Send your comment here