Thin fabric is a fabric for summer wear most lightweight, smooth, soft and breathable, like silk, chiffon, modal and so on, are popular materials, but because of the loose structure, easy off-line cracking, therefore, whether it is production or purchase, need attention, in order to avoid unnecessary embarrassment. Through the evaluation of security is part of in seam slippage degree. 1 to May this year, the Provincial Textile Testing Institute in various indexes, seam slippage degree unqualified was listed as the top three of the unqualified items. Spligate unqualified products are mostly structure loose fabric or thin silk fabric, spligate unqualified test data, unqualified maximum value up to 2.5cm. At present, our products have woven fabric standard assessment requirements of slippage, while China's standard of garment seam slippage degree assessment requirements. Standard spligate qualified value less than 0.6cm in general, for light weight, spligate qualified value is less than or equal to 0.8cm. But at present, our country's standard and standard of garment fabric slippage index does not match the material standards lag behind clothing product standard. First grade fabrics do not necessarily apply to produce first-class products, so from the perspective of quality there is a certain risk.