Garments Textile

July 31, 2012

Defects	Causes
Holes	Bad needle, take down mechanism too tight, high tension on yarn, bad yarn needle too tight in their slots, dial height too low or too high, badly tied knots, improper stitch setting.
Drop stitches	Takedown mechanism too loose, defective needles, too loose yarn tension not sufficient, wrong needle timing set, needle tricks closed.
Vertical lines	Defective needle, dirt in needle slots, needle too loose or too tight in the tricks, needles not enough lubricated.
Soiled yarn	Contamination of cones due to miss handling, knot tying with dirty hand.
Rust mark	Rusty needle, rust in tricks.
Slub	Broken filaments being pushed back along the thread line excessive tails of knitter knot.
Loop distortion	Bad and bent needles, bent trick walls, uneven yarn tension, needle timing set wrong, yarn carriers set wrong.

Topics	Weaving	knitting
1.Definition	The fabric forming process by interlacement of warp threads.	The fabric forming process by intermeshing of loops.
2.Elasticity	Very less or no elasticity.	The fabric shows high amount of stretch and elasticity due to loop structure.
3.Dimentional stability	Good dimensional stability which causes less shrinkage.	Less dimensional stability
4.Durability	More durable	Less durable than woven Fabrics.
5.Moisture absorption	The fabric absorbs less moisture	The knitted fabrics absorb more moisture because of their loose construction.
6.Slacking and low sening	The fabric provides good stability due to intersecting of yarns at right angle.	It creates problem after wearing for along time.
7.Air permeability	Air is less permeable due to compact construction woven fabric.	Air permeability is more due to voluminous structure of knitted fabric.
8.Crease	woven fabrics are more inclined to crease .So ironing and iron retention are better knitted fabric.	Knitted fabrics are more resistant to crease. So it requires no ironing.
9.Production cost	Production cost is more due to warp preparation and desizing process	Production cost is less due to modest manufacturing process.
10.Yarn	TPI of yarn is comparatively higher than knitting yarn.	TPI of yarn is comparatively lower than woven fabric.