Terminology

Fundamentals of Textile Design 3(2+1)

Lesson 7: Yarn calculations

Terminology

Take up

The contraction of warp from the slasher length to the cloth length is called take up.
Eg. If cut length / tape length on the slasher is 40 yards and length of woven cloth is 38 yards then the take up of warp is equal to :

40-38
-------- X 100 = 5 per cent
40

Regain:

This is generally estimated on the cloth. In grey cloth, a measured length of fabric is cut. A warp is raveled out from the cut fabric and straightened without stretching it and measured. From this measure the regain is calculated.
Eg. If a cloth is cut to 10 cms length and length of straightened warp is measured to be 10.8 cms, then the regain is calculated as:

Regain =
(10.8-10)/10 X 100 = 8 percent

Cut length or tape length:

The length of warp required to weave a definite length of cloth is called the cut length or tape length.
Tape length = required length of cloth + uptake
= required length of cloth X 100 + percent of regain of warp

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Last modified: Friday, 23 December 2011, 7:03 AM