By B. Purushothama
The ebook presents an creation to caliber administration and the standard pursuits of goods. Chapters speak about the influence of yarn parameters from a customer’s viewpoint, purposes for terrible caliber, quite a few advantageous elements and difficulties concerning spinning. The factors of yarn defects and acceptable treatments also are tested. a number of the 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
Uniformity in the tension of wound packages is very essential for getting uniform fabric surface. 30 ● ● ● ● ● A practical guide on quality management in spinning Hairiness: This is not a critical issue for this application, excepting of higher dust liberation during weaving. Classimat long faults: These are not critical for this end use. Objectionable faults: These faults result in entanglement and multiple breaks. Consistency in cotton shade and Micronnaire: This is not critical for this end use.
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.
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.
A Practical Guide to Quality Management in Spinning by B. Purushothama