Comparative study for Melt Dry & Wet spinning

মঙ্গলবার, ৫ জুলাই, ২০১১

==
Melt
Dry
Wet
Investment cost
Low
High
Low
Environment of Health hazard
Non toxic
Toxic & risk of accident
Toxic
Heat input
High
Very high
Low
Solvent
Not required
Only organic
Organic
Solidification
Cooling
Evaporating
Coagulating
Spg  Speed
1000-2000 m/min
600-1200 m/min
60-160 m/min

Table of typical Wet Spinning solvent and coagulant
Fiber
Solvent
Coagulant
Viscose
Aqueous of sodium salt & xanthate  ester
Dilute H2SO4+Na2SO4+ZnSO4
Acrylic
Dimethyl-acetamide (DMA)
50% aqueous  Dimethyl-acetamide
PVA
DMF (Dimethyle Formide), Water
30% aqueous DMF
Spandex
DMA
30% aqueous DMA

Twitter Delicious Facebook Digg Stumbleupon Favorites More

 
Design by Rakib Hasan | Bloggerized by Textilebd - A complete Textile Blog