This document specifies three procedures (diagonal marking, inverted-T marking and mock-garment marking) to measure the spirality or torque of woven and knitted fabrics after domestic laundering.
The results obtained from different procedures will not always be comparable.
This document is not intended to measure the spirality of fabrics as manufactured, but rather the spirality after laundering.
NOTE Some fabric constructions, such as denim, can have spirality intentionally introduced during manufacturing. Fabrics made on circular knitting machines can have inherent nonverticality of wale alignment.
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