15:57 Oct 1, 2004 |
English language (monolingual) [PRO] Tech/Engineering - Textiles / Clothing / Fashion / final yarn rewindingn formula alongwith formula | ||||
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| Selected response from: Elena Petelos United Kingdom Local time: 15:40 | |||
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SUMMARY OF ALL EXPLANATIONS PROVIDED | ||||
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3 +2 | irregularity or unevenness.... |
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4 +1 | how many flaws per 100 meters of fabric |
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4 | various faults occuring in the fabric |
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fabric fault irregularity or unevenness.... Explanation: I hope the links help//// The mass per unit length variation due to variation in fibre assembly is generally known as "IRREGULARITY" or "UNEVENNESS". It is true that the diagram can represent a true relfection of the mass or weight per unit length variation in a fibre assembly. For a complete analysis of the quality, however, the diagram alone is not enough. It is also necessary to have a numerical value which represents the mass variation. The mathematical statistics offer 2 methods the irregularity U% : It is the percentage mass deviation of unit length of material and is caused by uneven fibre distribution along the length of the strand. the coefficient of variation C.V.% In handling large quantities of data statistically, the coefficient of variation (C.V.%) is commonly used to define variability and is thus well-suited to the problem of expressing yarn evenness. It is currently probably the most widely accepted way of quantifying irregulariy. It is given by coefficient variation (C.V.%) = (standard deviation/average) x 100 ...... Reference: http://www.geocities.com/vijayakumar777/yarnevenness3.html Reference: http://www.geocities.com/vijayakumar777/yarnevenness.html |
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2 days 22 hrs confidence:
4 days confidence: peer agreement (net): +1
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