Cashmere is a rare special animal fiber (which is different from wool). It is a valuable textile raw material. It is called "soft diamond" and "soft gold" abroad. Because of the Asian Kashmir was distributed to the output of cashmere, Europe in history, so the international custom called cashmere "Kashmir Cashmere)"; Chinese by its homonym for "cashmere".
Cashmere is the comb from goat, and the quality of cashmere goat is the best. Every spring is goat hair removal. It is called "velvet", which is made of special iron comb from goat body. The clean cashmere is combed to remove the coarse wool in the raw wool, and the cashmere, which is obtained after the dead hair and the dandruff, is called no cashmere. Cashmere has three colors of white, green and purple, of which white cashmere is the most precious. The quality standard of plush in China is divided into 5 grades, according to rough and containing impurity rate and length index grading, grading standards of cashmere and purple cashmere is different.
Cashmere is long in the goat cortex, buried in the goat hair root, a thin layer of coarse fine cashmere, cold winter long, resist cold, spring warming after the natural shedding, adapt to climate.
The world cashmere producing countries include Mongolia, Iran, Chinese, India, Afghanistan and Turkey, including Chinese, the total output of 16000-17000 tons of 50-60%, and the quality is best, mainly from Inner Mongolia, Xinjiang, Liaoning, Shaanxi, Gansu, Shanxi, Shandong, Ningxia, Tibet, Qinghai and other provinces and autonomous regions in Inner Mongolia, the highest yield and the best quality. Qinghe County, Hebei Province, is known as the capital of cashmere, the largest cashmere processing and distributing center in China. Since 1994, the trade fair of cashmere industry has been held in mid and late 9 every year. The fifteenth China Qinghe international cashmere and fluffy fair was held in from September 26 to 30, 2008.
Cashmere has curly irregular thin and deep, composed of cuticle layer and cortex without medulla, scale density is about 60 A / mm and 70 circular cross section of the fiber diameter is thinner than the approximate, fine wool, the average fineness in 14-16um, fineness unevenness is small, is about 20%. The length is 35-45mm, high elongation, moisture absorption is better than wool, thin, thin, soft, set in a warm and smooth. The fiber is moderately strong, elastic and has a natural and soft color. Cashmere is more sensitive to acid, alkali and heat than fine wool. Even at lower temperature and lower concentration of acid and alkali, fiber damage is also significant, especially for chlorine oxidizing agents.
The selection of cashmere products
At present, the international market, quality is uneven in quality cashmere products. Many businesses in order to reduce the cost, or add the wool and other fibers, or use 28-30MM or below 16 microns above raw materials. But some professional top brands to use the fineness of 15 microns, the length of about 38MM of raw materials, and cashmere products as a high-end luxury status to ensure.
Detection of cashmere fiber
There are many quality indexes of cashmere fiber, in which cashmere content, fiber length / fineness and other indicators need to be completed by professional testing institutions. According to the standard issued by the national textile Ministry, the content of cashmere is 95% or more pure cashmere, and the content of the finished product can be labeled as 100% cashmere. Cashmere content less than 95% classified as cashmere blended products, must be real detail to annotate various blend materials the actual rates may be sold, such as 85% 15% silk cashmere, not vague cashmere blended or velour. The inspection report of the professional inspection organization is the legal basis of the product marking.