Dissertation > Excellent graduate degree dissertation topics show

Research on Comprehensive Quality Evaluation of Cotton and Quality Predication for Colored Yorn

Author: GuanYongHong
Tutor: XingMingJie;QiuZhaoBao
School: Qingdao University
Course: Textile Engineering
Keywords: cotton assorting of colored yarns evaluating index fuzzing mathematics combined predication SPSS
CLC: TS111
Type: Master's thesis
Year: 2009
Downloads: 78
Quote: 1
Read: Download Dissertation

Abstract


Cotton colored yarns are converted by blending the dyed cotton with raw cotton fibers or mixing two or more kinds of dyed cotton fibers in the given blend ratio.The characteristic of cotton assorting in dyed yarns will directly affect the yarn quality.Based on the former researches,this paper mainly studied the comprehensive evaluation of the properties of the dyed cotton fibers and constructed the prediction model of the colored yarn quality.The method of contribution value in partial correlation was adopted to abstract the dominant parameters affecting the fiber comprehensive quality,and the parameters included micronaire value,upper half mean length,breaking tenacity and uniformity ratio.Referring to current standard of cotton fiber quality,the characteristic value of grading in the evaluating indicators of the mixture of the dyed and raw cotton fiber was formulated by converting the evaluating indicators with employing the fuzzy grading and the degree of membership,and consequently,the evaluating index was obtained to represent the fiber quality comprehensively.The evaluating index integrated the characteristics of fiber quality into a specified index which could reflect the primary characteristics of fiber quality adequately.By employing cluster analysis,it was possible to realize sorting and classifying the raw and dyed cotton fibers.It was shown by analysis that the evaluating index of the blended fibers was significantly related to the yarn quality.On the basis of SPSS analysis software,the combined predication model of yarn qualities,including of breaking tenacity yarn unevenness,thin places,thick places and neps,were constructed.It was proved that the results of the forecasting model were matched well with the tested ones.The cotton assorting technology of colored yarns is a combination of academic and practical systematic engineering,unavoidably,there is a discrepancy when handle determination and visual test are employed in cotton assorting.Therefore,with the help of modern testing equipments to improve the precision of cotton assorting and predict the yarn quality,it’s beneficial to stablize the manufacture,develop the new products,reduce the production costs and raise the economic efficiency.

Related Dissertations

  1. County construction land intensive use of evaluation studies,TP319
  2. The Load Research and Comprehensive Evaluation on the Agricultural Non-Point Source Pollution in Nantong,X592
  3. The Factors of Knowledge Sharing to Learners in Virtual Learning Community,G434
  4. Logistic Regression Multiple Linear Diagnosis and Improvement and Its Application in Medicine,R195
  5. Research of the Technology for Recycling Molybdenum in the Mo-tailings,TD954
  6. Empirical Research on the Competitiveness Evaluation of Listed Commercial Banks in Our Country,F224
  7. Research on Peishang College Students’ Comprehensive Quality Evaluation Index System,G645.5
  8. Research of Wulong Coal Mine Monitored Historical Data Mining,TD76
  9. Outsourcing Cooperation Relationship Evaluating Index System Reearch-Peric as Example,F224
  10. The performance of the real estate business relationship between customer satisfaction and,F293.3;F224
  11. Study on Human Factors Mechanism and Response Strategies in Industrial Accident,X928.0
  12. Based on Clustering Analysis Method of the Traffic Black-spot Identification,U491.31
  13. The Research on Microscopic Evaluation System of Road Traffic Safety,U491
  14. Efficient use of high- arsenic sulfide gold ore resources Experimental Research,TD98
  15. An Empirical Investigation of Beijing Women’s Clothing Consumption,F426.86
  16. Based simulation model of driver's desired speed,U491
  17. The Research of Optimizing the Structure of Administrative Cost,D630
  18. Studies on Risk Management and Its Information Applicationin of the General Contracting Enterprise,F426.92
  19. Existing residential needs of the residents in Tianjin Research Update,TU241
  20. A Study about the Impact of the Constitution of TCM on the Body Function and Physique of College Students,G804.49
  21. Study on the Effect Evaluation of Tourism Advertisement in Changsha Newspaper,F713.8

CLC: > Industrial Technology > Light industry,handicrafts > Textile industry,dyeing and finishing industry > Cotton > Basic science
© 2012 www.DissertationTopic.Net  Mobile