Evaluation of the yellowness and yellowing of textiles
Yellowness is an critical quality index that affects the appearance and inner quality of tex-tiles.In order to better utilize the evaluation of yellowness and yellowing in textiles,this paper sys-tematically elaborates on the relevant standards and methods for textile yellowness,yellowing and their evaluation.The yellowness evaluation methods areclassified into 4 categories,and the yellowing evaluation methods are divided into 2 categories,we provided a detailed introduction to each category and compared the yellowness and yellowing evaluation methods.In addition,an analysis was conduc-ted on the color characteristic indicators Rd and+b of cotton.pointing out that translating or under-standing Rd as reflectance is inappropriate,Rd is equal to one of the three stimulus values of Y,corre-sponding to brightness.At present,there is still a lack of research on the evaluation of yellowness and yellowing of textiles and it is necessary to deepen.Meanwhile,the test methods and standards for tex-tile yellowness and yellowing should be developed and strengthened intensively.
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万方数据
