By B. Purushothama

The booklet offers an advent to caliber administration and the standard pursuits of goods. Chapters speak about the influence of yarn parameters from a customer’s point of view, purposes for bad caliber, quite a few high-quality elements and difficulties on the topic of spinning. The reasons of yarn defects and applicable treatments also are tested. the various common-market proceedings that spinners event are mentioned and the activities to be taken are defined.

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Additional resources for A Practical Guide to Quality Management in Spinning (Woodhead Publishing India)

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Grover – Contaminations in Indian Cottons: Sources and Remedies – NCUTE Pilot programme 30 th and 31st Jan 1999. Dr. H. V. Sreenivasa Murthy and Dr. A. K. Basu – Optimization of Opening, Cleaning and Blending at Blow room – NCUTE Pilot programme 30th and 31st Jan 1999. Dr. R. Chattopadhyay – Quality consideration in Blow room – NCUTE pilot programme 30th and 31st Jan 1999. B. Purushothama – Linking exercises – A strong tool for Quality Auditing – Quality Update – Aug 2007 – Indian Society for Quality.

We get streaks in warp and weft due to these faults. Objectionable faults: Objectionable faults cause higher breakages on looms. The bunch ends results in multiple breaks. The snarls result in entanglement of adjacent yarns. Consistency in cotton colour and Micronnaire: Variation in shade of cotton gives variation in shade even after dyeing in certain shades and it is not accepted. Contamination: The colour contamination is not accepted as it gives an ugly look. 2 ● ● ● ● ● ● ● 29 Grey yarns for heavy fabrics and industrial applications Count variations: As normally doubled and multifold yarns are used for heavy fabrics, there shall not be many problems due to count variations.

In ring frames, large diameter bottom rollers of 30 mm are used for long staple synthetic fibres compared to 27 or 25 mm diameter for cottons. The cradle sizes used in drafting are different for different staple lengths. Similarly there are number of changes in the machine configuration to suit different raw materials. If we are not clear about the same, inspite of having latest machinery and good raw materials, we might produce bad quality yarns. Variations, mix-ups, contaminations and damages in raw materials are also responsible for poor quality yarns.

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