ADVANTAGES OF COMPACT YARN IN KNITTING AND WEAVING

COMPACT YARN

AIM :   Aim of applying the compact spinning systems is the increase in yarn quality by means of narrowing and decreasing the width

of the band of fibres which come out from the drawing apparatus before it is twisted into the yarn, and by the elimination of twisting triangle.

ADVANTAGES OF COMPACT YARN. :

1. Smaller yarn breakages (by 30 - 60 % )  during spinning process (as well as during further processing )

2.The possibility of decreasing the twist by 20 %.

3. Higher efficiency connected with higher tensile strength, and with possibility of spinning with decreased twist of fibres.

4. Smaller amount of dust released due to the more compact yarn structure.

5. The possibilities of increasing the winding and warping velocities.

6. The possibilities of decreasing the twist by 20 % also during twist yarn in a twisting frame.( Yarn structure with a lowered twist allows both better dye

absorption and lower dye consumption to be obtained.

ADVANTAGES OF COMPACT YARNS IN  WEAVING  :

1. Reduction of size consumption by 25 % to 50 %.

2.Single and Plied yarn do not require singeing.

3. Lower Hairiness and higher tensile strength  decreases yarn breakage during warping by 30 5.

4. A decreased in the number of sized and wedged joints firmed over shedding.

5. Plied yarn can be replaced in the weaving process by cheaped single yarn.

6. Warp thread breakage during weaving decreased by 50 % and those of weft by 30 %.

7. The number of breakages which occur by weft picking on rapier loom decreases by 33 % whereas on pneumatic looms this figure reaches up to 45 %.

8. The picking velocity on pneumatic looms can be raised.

yarn will be of

1. Better smoothness

2. Higher lusture.

3. Abrasion fastness better by 40- 50 %.

4.Hairiness lower by 20 - 30 %-   based on uster test reports.

5.Tenacity and elongation at break higher by 8 to 15 %.

6. Smaller mass irregularity.

ADVANTAGES OF COMPACT YARN IN KNITTED FABRICS.

1. Clearer loop structure with less loop cross - infringing fibres.

2. Higher brilliancy and softer handle.

3. Fewer end breaks.

4. Low ellimination of fly and dust.

5. Usage of unwaxed yarn is feasible.

6. Reduction in abrasion by 30 %.

7. Reduces the wear and tear of needles and other related componenents, thus avoiding holes or stripes in the fabric.

8. Fabric appearance is enhanced due to the uniformity and lower yarn hairiness.

9. Lower fabric shrinkage and weight loss contributes for coss effectiveness..

10. Dimensional stability is retained after many washes owing to better pilling resistance..

11. Fabric gloss after yarn mercerization is retained even after several washes.