Kawoon Samatanasa, commonly known as the white cloud, silk yarn, called "ring yunsha", is an endemic plant in Guangdong Dioscorea cirrhosa juice dyeing silk fabric, with unique coverage in the Pearl River Delta region is rich in minerals of the river silt, an expensive silk yarn products processed by the sun. Because walking will be "rustling", it was originally called the "ring yunsha", later called "xiangyunsha homophonic". It is a national intangible cultural heritage....... Yarn processing of Dioscorea cirrhosa juice, the mountain of Dioscorea cirrhosa as a natural dye, the billet silk repeatedly disseminated, semi-finished dyed brown, with iron rich black FWFPM on the one side and on the smear, the blazing sun. The iron in the mud and other biological and chemical composition of Dioscorea cirrhosa juice in tannic acid after full reaction, generating black Rousuanyatie, shake off FWFPM, clean, became yellow, shiny lights in the face of black silk. Black, Brown is the composition of Rousuanyatie ingredients is the oxidative denaturation of tannic acid....... 30 degrees below or hand wash cold, washed with water, can also add "comfort" lotion or mild, alkaline washing liquid, no force can be dried in the shade. Slightly floating color is normal. Silk is the best summer clothing, wearing not sticky, cool and comfortable, washing fastness to light. Xiangyunsha most afraid of fold pressure, twisting, and therefore can not be used in washing machine washing, also cannot use the method can only be used with rubbing washing, cleaning. Xiangyunsha garment washing, soap or alkaline detergent can best use neutral detergent solution to clean water or lighter. When washing, use a towel dipped in cold water to wipe the sweat on the clothes, or with a soft brush on the dirty parts and then gently scrub with cold water with cast cleaning, after washing with water to suspend water spray dried, the silk fabric is very expensive, the equivalent of 30 momme above heavy silk prices; incense cloud yarn the color is generally dark in color, choose the room is not very big. There are many silk and quite a few students are obsessed with its. I want to emphasize that the silk and silk, which are two independent concepts, refers to the raw materials of silk fabric, and silk refers to a dyeing process of post processing of cloth. Its price is different, have a great relationship with the quality of the base cloth. If the cloth is not pure silk silk, but silk + cotton, so this kind of silk is not strictly called "Buttercup silk" and called "gambiered Guangdong". The gambiered Guangdong generally do not think that it is mostly jacquard, silk base cloth must not pure silk cloth good-looking, gambiered Guangdong is far lower than the buttercup silk in price. The same is the buttercup silk, the price will be different, the power spinning cloth is cheaper, heavy satin cloth (commonly known as satin silk) is relatively expensive, double palace can also be made into silk fabric. In these varieties, satin silk feel and touch the most comfortable, it is a delicate satin smooth, and a skinny, not so soft satin lying takes a close to the body, it is easier to shape