SKILL NHANCEMENT COURSE
PAPER 2 - SILK TECHNILOGY
POWER POINT PRESENTATION READING MATERIAL
RAW SILK PROPERTIES
The silk filament or bave forming the cocoon though apparently single is actually composed of two filaments or brins which issue from a pair of silk glands of the silkworm and are stuck together and covered by silk gum or sericin. The presence |
RAW SILK TESTING
Silk weaving has reached a very high standard of industrial efficiency. In fact, today a number of varieties of silk fabrics are produced on handlooms and sophisticated power looms. This requires different qualities of raw silk. In order |
SILK THROWING:
means twisting before weaving through series of operations. The term THROW means to twist or spin |
SILK WEAVING
Weaving is the interlacing of the two systems of yarns, which interlace at right angles to each other. The lengthwise thread are called warp. Individually they are known as ends. The crosswise threads are called filling or weft or woof. Individually they are called as picks. |
DEGUMMING, BLEACHING and DYEING:
The process of eliminating the gum from the raw silk is known as degumming of silk. The gummy substance is the sericin which/ non filamentous. Besides sericin raw silk also contains other natural impurities namely fat, waxes |
SILK SPINNING:
There are two types of silk yarns used in the weaving sector. One is raw silk – which is comparable to filament yarn in synthetic textiles. Second one is spun silk – which is comparable to staple fiber in synthetic textiles. |