Definition of Crimp
When warp and weft yarn interlace in fabric follow a way patch which is known as crimp.According To Pierce, “Crimp, geometrically considered, is the percentage excess of length of the yarn axis over the cloth length”.
Crimp Percentage
Crimp Percentage is defined as the mean difference between the straightened thread length and the distance between the ends of the thread while in cloth, expressed as a percentage.Crimp Ratio
It means the ratio of yarn length to fabric length. Crimp C= l-P/p.Take Up Percentage or Crimp Rigidity
Take up percentage or crimp rigidity is a measure of the ability of textured yarn to receive from stretch. It is the ratio of reduced length to original length, expressed as percentage.Thus, take up percentage T% = L – P/ L × 100.
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