螢光增白染料添加不同染料助劑在不同pH下對聚酯針織物酚黃變的影響

The Effect of Fluorescent Brightening Dyes with Different Dye Auxiliaries on the Phenol Yellowing of Polyester Knitted Fabrics under Different pH

陳莉尹(L.Y. Chen) ； 尤政平(C.P. Yu) ； 吳繼仁(C.J. Wu)

《紡織綜合研究期刊》 31卷1期 (2021/01) Pp. 213-218

https://doi.org/10.6439/TTRJ.202101_31(1).0018

摘要

針織鞋於2008年問世，使用一體成型針織技術搭配聚酯纖維特性，輕盈透氣且具包覆性，成為潮流。然而聚酯的酚黃變問題卻未解決。本研究將可能影響聚酯酚黃變的因素縮小至染料、化學助劑與染浴pH值，使用螢光增白染料添加分散劑、均染劑、浴中柔軟劑及還原洗劑在五種染浴pH值染色，透過酚黃變國際標準ISO 105-X18:2007檢驗方法取得各組合酚黃變色牢度。由實驗結果得知，螢光增白染料對pH值的依賴度高，整體染料助劑組合在pH 5.0的酚黃變色牢度最佳，往酸性或弱酸性酚黃變色牢度都會降低，另外添加分散劑及還原洗劑可以有效提高酚黃變色牢度。

關鍵字

螢光增白染料 ； 聚酯針織物 ； 酚黃變 ； 染料助劑

並列摘要

Polyester knitted shoes came out in 2008, using one-piece knitting technology with the characteristics of polyester fiber, which is light, breathable and covering, and has become the current trend. However, the problem of phenol yellowing of polyester has not been solved and many losses have been caused. In this study, the factors that may affect the yellowing of polyester phenol are reduced to dyes, chemical auxiliaries and the pH value of the dye bath. The fluorescent brightening dyes are used to add dispersing agents, leveling agents, softeners and hydrosulfite. The pH value of the dye bath is dyed, and the color fastness to phenol yellowing of each combination is obtained through the phenol yellowing international standard ISO 105-X18:2007 inspection method. According to the experimental results, fluorescent whitening dyes are highly dependent on pH. The overall dye auxiliaries have the best color fastness to phenol yellow at pH 5.0, and the color fastness to acid or weak acid phenol yellow will decrease. In addition, adding dispersant and hydrosulfite can effectively improve the fastness to phenol yellow.

並列關鍵字

Fluorescent brightening dyes ； polyester knitted fabrics ； phenol yellowing ； chemical auxiliaries