涤纶分散染料转移印花织物的耐光稳定性及其提升工艺

摘要/Abstract

摘要： 为进一步改善以分散染料蓝72为主的系列颜色耐光稳定性差的问题，通过热升华的方式将分散染料蓝72/紫外线吸收剂同浆印花，将紫外线吸收剂与分散染料同步转移至涤纶织物上，在提高织物耐光稳定性的同时，减少工序、降低能耗。通过对常用紫外线吸收剂的筛选、紫外线吸收剂分散液的制备和分散染料蓝72/紫外线吸收剂同浆印花织物抗紫外线性能的研究，探究转移温度、时间对印花织物耐光稳定性的影响。结果表明：紫外线吸收剂UV-326的抗紫外线效果较好；当UV-326分散工艺参数为：分散剂质量分数为UV-326的3%、氧化锆珠尺寸选用0.3～0.4 mm、UV-326与氧化锆珠的质量比为1∶10、分散时间为18 h；转印工艺为：转印温度230 ℃、转印时间10 s；UV-326用量质量分数达到6%时，转移印花织物的耐光色牢度可提高1～2级，涤纶分散染料转移印花织物的耐光稳定性有了明显提升。

关键词:

紫外线吸收剂, 涤纶, 分散染料蓝72, 同浆印花, 耐光稳定性

Abstract: Compared with natural leather, leather-like fabric has the advantages of low price and easy development, so it greatly fills in the shortage and high price of natural leather market and has great market potential. However, in the process of using, it was found that when polyester fabric was treated with disperse dyes combined with waterborne polyurethane, the leather-like fabric made of anthraquinone blue dyes in disperse dyes could not meet the requirements of light stability, resulting in poor light stability of the series of colors mainly composed of disperse dyes. Therefore, it is of great significance to develop a kind of polyester fabric with high light stability.
In order to meet the requirements of high light fastness of polyester outdoor textiles, UV absorber/disperse dye blue 72 was used to print polyester fabrics in one paste. Firstly, the UV absorber with the best light fastness was selected by discussing the sublimation transfer performance, anti-UV effect, light fastness, transfer rate, UPF value and average particle size of the fabric through the types of UV absorbers. Secondly, because UV-326 is difficult to dissolve in PVB solution, it can't be stably dispersed in printing paste, and it is easy for UV-326 to precipitate in color paste, resulting in low utilization rate and inconvenient use, etc. Therefore, by studying the grinding time of UV-326 dispersion, the size and dosage of dispersion medium and the dosage of dispersant on the particle size, dispersion stability, UV-326 transfer rate, dye transfer rate and light stability of printed fabric. Finally, in order to further study the transfer printing process of polyester disperse dyes, one-size transfer printing was carried out at different temperatures and times, and the best process of one-size transfer printing of polyester disperse dyes was determined. Using UV absorber/disperse dye blue 72 in one paste printing can not only obtain good light stability, but also solve the problems of environmental pollution and complicated process when traditional UV absorber is combined with fabric. It is found that UV-326 transfer printing fabric has better UV resistance than other transfer printing fabrics with three UV absorbers, and its light fastness can be improved by 1~2 grades. The optimum process parameters of UV-326 were obtained: the mass fraction of dispersant was 3% of UV-326, the size of zirconia beads was 0.3～0.4 mm, the mass ratio of UV-326 to zirconia beads was 1∶10, and the dispersion time was 18 h; The transfer printing temperature of disperse dye blue 72/UV-326 in one paste is 230 ℃ and the transfer time is 10 s.
Through the research on the light stability of polyester disperse dye transfer printing fabric and its promotion process, the light stability of polyester fabric can be greatly improved, which provides a research idea for the follow-up requirements of high light fastness of outdoor textiles.

Key words: ultraviolet absorbent, polyester, disperse dye blue 72, same paste printing, light stability

中图分类号:

TS194.4

章梅, 周微波, 章淑娟, 赵惠军, 王成龙, 郑今欢. 涤纶分散染料转移印花织物的耐光稳定性及其提升工艺[J]. 现代纺织技术, 2023, 31(4): 208-216.

ZHANG Mei, ZHOU Weibo, ZHANG Shujuan, ZHAO Huijun, WANG Chenglong, ZHENG Jinhuan. Light stability of polyester disperse dye transfer printing fabric and its promotion process[J]. Advanced Textile Technology, 2023, 31(4): 208-216.

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