Journal of Textile Research ›› 2018, Vol. 39 ›› Issue (11): 33-37.doi: 10.13475/j.fzxb.20171008705

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Evaluation on uncertainty of cotton/ramie blending ratio by micro-projection

  

  • Received:2017-10-25 Revised:2018-08-14 Online:2018-11-15 Published:2018-11-19

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Abstract:

In order to evaluate accuracy in measuring the blending ratio of cotton/ramie according to FZ/T 30003--2009 《QuantativeAnalysis on Cotton/Ramie Blended Textiles by Micro--profection Method》, the source of the uncertainty was discussed.  Four main uncertainties including fiber length, diameter, fiber number and densities were calculated. Meanwhile, the influence of cutting length of cotton and ramie fibers on measurement accuracy of fibers content was discussed. It is found that the neglecting on difference of fibers length results in 0.8% detection error. The results show that the uncrtainty introduced by equivalent diameter is the largest while by equivalent diameter is the largest while by density is the smallest when measuring the blending ratio of cotton and ramie by FZ/T 30003--2009. In order to improve measurement efficiency, the difference in fibers cutting length could be neglected within the allowed error range.

Key words: cotton, ramie, blended ratio, micro-profection, measurement of uncertainty

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