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首页> 外文期刊>Journal of Applied Polymer Science >Comparison of disperse dye exhaustion, color yield, and colorfastness between polylactide and poly(ethylene terephthalate)
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Comparison of disperse dye exhaustion, color yield, and colorfastness between polylactide and poly(ethylene terephthalate)

机译：聚丙交酯和聚对苯二甲酸乙二酯之间的分散染料消耗，色产率和色牢度的比较

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摘要

Ten popular disperse dyes with different energy levels and chemical constitutions were used to compare their exhaustion, color yield, and colorfastness on polylactide (PLA) and poly(ethylene terephthalate) (PET). Only two out of the 10 dyes had exhaustions higher than 80% on PLA at 2% owf. Five out of the 10 dyes had exhaustions less than 50%. All 10 dyes had more than 90% exhaustion on PET, whereas six of them had exhaustions of 98% or higher. There was no obvious pattern as for which energy level or which structure class provided dye exhaustion better than that of others. Although PLA had lower disperse dye exhaustion than that of PET, it had higher color yield. Based on the 10 dyes examined, the color yield of PLA was about 30% higher than that of PET. This means that even with low dye uptake, PLA could have a similar apparent shade depth as that of PET if the same dyeing conditions are applied. Our study supported that the lower reflectance, or reflectivity, of PLA contributes to the higher color yield of PLA than that of PET. A quantitative relation between the shade depth of PLA and PET based on their dye sorption was developed. Disperse dyes examined had lower washing and crocking fastness on PLA than on PET. The differences in class were about 0.5 to 1.0. If the comparison was based on the same dye uptake, the differences might be larger. The differences in light fastness between the two fibers were smaller than that in washing and crocking fastnesses. The light fastness of disperse dyes on PLA is expected to be even better if the comparison is based on the same dye uptake on both fibers. (C) 2003 Wiley Periodicals, Inc. [References: 5]
机译：使用十种流行的具有不同能级和化学组成的分散染料来比较它们在聚丙交酯（PLA）和聚对苯二甲酸乙二酯（PET）上的耗竭，色产率和色牢度。在10％的染料中，只有2种在owf为2％时在PLA上的耗竭率高于80％。 10种染料中有5种的耗竭率小于50％。所有10种染料的PET耗竭率均超过90％，而其中6种染料的耗竭率达到98％或更高。关于哪个能级或哪种结构类别比其他的能更好地提供染料耗尽没有明显的规律。尽管PLA的分散染料消耗量比PET低，但其色产率更高。基于所检查的10种染料，PLA的色率比PET高约30％。这意味着即使采用较低的染料吸收量，如果采用相同的染色条件，PLA的表观色深也会与PET相似。我们的研究支持PLA的较低反射率或反射率比PET产生更高的PLA色彩产量。建立了基于PLA和PET的染料吸附量的阴影深度之间的定量关系。所检查的分散染料在PLA上的耐水洗和耐粘牢度低于在PET上。等级差异约为0.5至1.0。如果比较是基于相同的染料吸收量，则差异可能更大。两种纤维之间的耐光性差异小于耐洗和耐粘牢度的差异。如果比较是基于两种纤维上相同的染料吸收率，则分散染料在PLA上的耐光性有望更高。 （C）2003 Wiley Periodicals，Inc. [参考：5]

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