Sunday, 14 December 2008

Open End Yarn Properties Compared with Ring Yarn



Quality Characteristics of OE yarn as compared to ring yarn


Production- Increased 3-3.5 times
Package size- Increased 20 times
Tex Range- 20-60
Twist- 10-15% higher
Average Strength- 15-20% weaker
Variation in Strength- Less
Extensibility- 10% higher
Work of Rupture- same
regularity- 10-20% better
count variation- better
appearance- more uniform
bulkiness- sp. volume increased by 10%
hairiness- 20-40% less
cleanliness- better
nappiness- fewer neps
yarn faults- decreased by 80%
resistance to abrasion- 20-30% better
handle- harsher
structure- different
fiber blending- much better
take up of size- better ( less size required)
take up of dyes- better ( vivid colors)
End breaks in spinning- reduced 75%
Fly liberation- less

Characteristcs of OE yarn in use and of fabric made from them- comparison with ring spinning


Yarn made from OE spinning

End breaks- reduced by 50%
Knots (after winding)- decreased by 15-17/kg
warp breaks in weaving- decreased by 70%
weft breaks in weaving- decreased by 25%
tensile strength- reduced
tearing strength- reduced
bursting strength- reduced
appearance - more uniform
barring- much much better
cover- 10% better
cleanliness- better
neppiness- fewer neps
resistance to abrasion- 5-7% better
handle- harsher
thermal insulation- 10-15% better
air permeability- 15-25% better
Take up of dyes- better ( vivid colors, clear definitions)
Absorption of water- much better
shrinkage- same
raising- easier and more uniform

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