广东费飘职业故本学院 Guangdong Inatitute of Textile Technology Chapter 11 Silk Fibers
Chapter 11 Silk Fibers
广东费织职业故术学院 Guangdong Inatitute of Textile Technology Introduction a The larva of certain insects for use in their building webs, climbing ropes and cocoons 口 Spiders a Commercial silk indust ry: use larva of silkworm a Application Mostly apparel, was also used for parachutes
Introduction The larva of certain insects for use in their building webs, climbing ropes and cocoons Spiders Commercial silk industry: use larva of silkworm Application: Mostly apparel, was also used for parachutes
广东费飘职业故本学院 Guangdong Inatitute of Textile Technology Structure Macrostructure Length 1000-1300 yds(915-1190 m)/cocoon Max 3000yds(2750m)/cocoon 1 fiber/cocoon ■ Thickness: a 9-11 um or 1.2-1.5 denier 口∨ aries: thickest in the midd| e thinnest inside(maybe running out of raw material or maybe just make itself comfortable)
Structure Macrostructure: ◼ Length: 1000-1300 yds (915-1190 m)/cocoon Max 3000yds (2750m)/cocoon, 1 fiber/cocoon. ◼ Thickness: 9-11 mm or 1.2-1.5 denier. Varies: thickest in the middle thinnest inside (maybe running out of raw material, or maybe just make itself comfortable)
广东费飘职业故本学院 Guangdong Inatitute of Textile Technology Structure a Microstructure cross-section 2 triangular filaments co- extruded by a worm The two are called brins held together by sericin(gum or silk glue) Wild silk worms produce ribbon-like silk fibers
Structure Microstructure ◼ cross-section: 2 triangular filaments coextruded by a worm. ◼ The two are called brins held together by sericin (gum or silk glue). ◼ Wild silk worms produce ribbon-like silk fibers
广东费飘职业故本学院 Guangdong Inatitute of Textile Technology Structure 口 Submicrostructure silk from cultivated worm i no identifiable submicrostructure wild silk or tussah silk has internal fibrillar structure
Structure Submicrostructure ◼ Silk from cultivated worm: no identifiable submicrostructure. ◼ Wild silk or Tussah silk has internal fibrillar structure