By B. Purushothama
The booklet offers an advent to caliber administration and the standard ambitions of goods. Chapters speak about the impression of yarn parameters from a customer’s standpoint, purposes for terrible caliber, a variety of advantageous features and difficulties regarding spinning. The explanations of yarn defects and acceptable treatments also are tested. the various common-market lawsuits that spinners adventure are mentioned and the activities to be taken are defined.
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Additional info for A Practical Guide to Quality Management in Spinning (Woodhead Publishing India)
Winding quality: Uneven winding results in uneven tension in knitting, giving rise to uneven tightness factor and horizontal lines and barre effect. If the cones have stitches in the back, it results in breakages. The front stitches leads to loose ends, but is not critical as it can be controlled by the tensioning device at knitting. Consistency in cotton shade and Micronnaire: Day to day variations in cotton shades and Micronnaire values between mixings in the same lot of yarns results in uneven dyeing, streakiness and barre.
However, after a period of three months, the spinner received a feedback from the customer that the T-shirts were not accepted in the market as it had a “feminine feel” and the end customers wanted a “masculine feel”. ii. The customer wanted Ne 7s K for weaving rough jeans. 0 micronaire. The Jeans had a soft feel and was not accepted by the young customers. 0 should have been good. iii. A customer wanted to manufacture towels and a rough surface was the requirement. The count of the yarn required was Ne 2/ 20s.
The parachute opens up while jumping from a plane. At that time, the fabric shall get sudden impact of wind at high speed and pressure; it should not burst. Therefore, the bursting strength of parachutes must be very high. These are folded in a small bag when not in use; hence the fabric thickness should be as low as possible. That is why silk and nylons are preferred and not cotton or wool. The parachute remains in a folded state for a very long time compared to it being in open state; hence the fabric should not get deshaped at creases.
A Practical Guide to Quality Management in Spinning (Woodhead Publishing India) by B. Purushothama