Tussah silk is a kind of filament made from tussah spinning. Tussah silk is one of the unique natural textile materials in China. Its silk has a unique gem luster, natural and luxurious, smooth and comfortable. According to the different boiled and bleached cocoons and the different chemicals used, they can be divided into two types: medicinal silk and natural silk.

Tussah silk feels soft and elastic. The heat resistance is good, sericin is attached to the periphery of silk fibroin layer by layer, and the strength begins to weaken when the temperature reaches 140℃. The moisture resistance is also strong, accounting for about 85%; Sericin is light brown, and its strength can be increased by 4% under wet conditions. Insulation, strength, ductility, embrittlement resistance, acid and alkali resistance are better than mulberry silk. But the shrinkage rate of fabric is large. Raw silk is not easy to dye.

Tussah silk textile products, with strong rigidity, strong acid and alkali resistance, natural color, thick fiber and good warmth retention, are the first choice for silk carpets. Some manufacturers will bleach with white alkali.