摘要
为解决C.I.活性红24∶1染色棉织物在日光照射下容易褪变色以及市场上缺乏对棉织物具有耐久反应性整理光稳定化助剂的问题,在苯并三唑紫外线吸收剂结构中引入二氯均三嗪活性基和磺酸基,设计开发了一种兼具优良水溶性和反应性且在合成过程中无需使用催化剂的新型紫外线吸收剂R1,并通过质谱、红外光谱、紫外-可见吸收光谱、核磁共振氢谱对产物分子结构进行表征;将R1分别应用于未染色棉织物和C.I.活性红24∶1染色棉织物,测试了固着率、UPF值、光致褪色率、耐光色牢度与耐洗性。结果表明:R1在未染色棉织物上的固着率达到85.47%,UPF值为118.97,染色织物表现出优异的防紫外线透过能力;R1在染色棉织物上的固着率为65.41%,光致褪色率降低了5.07%;耐光色牢度提升了1.0级,皂洗10次后,UPF损失率降低不超过3.20%。反应性紫外线吸收剂R1与棉织物反应机理与活性染料相近,将R1整理到棉织物及染色制品上,对提升棉织物防紫外线性能、染色棉织物耐光性能以及耐久性具有较好的应用价值。
To solve the problem that C.I.reactive red 24∶1 dyed cotton fabrics are easy to fade under sunlight and that the market lacks of light stabilization additives with durable reactivity for cotton fabrics,dichloromistriazine active group and sulfonic acid group were introduced into the structure of benzotriazole UV absorbers.A new UV absorbent R1 with excellent water solubility and reactivity was designed and developed without the use of catalysts in the synthesis process,and the molecular structure of the product was characterized by mass spectrometry,infrared spectroscopy,UV-vis absorption spectroscopy and hydrogen NMR spectroscopy.R1 was applied to an undyed cotton fabric and C.I.reactive red 24∶1 dyed cotton fabric,and the fixing rate,UPF value,photofading rate,color fastness to light and washable ability were tested.The results showed that the fixed rate of R1 on the undyed cotton fabric reached 85.47%,the UPF value was 118.97,and the dyed cotton fabric showed excellent anti-ultraviolet transmission ability. The fixation rate of R1 on the dyed cotton fabric was 65.41%, and the photofadingrate was reduced by 5.07%. The color fastness to light was increased by 1.0 level, and the UPF loss ratewas reduced by no more than 3.20% after soaping for 10 times. The reaction mechanism of the reactiveUV absorbent R1 with cotton fabrics is similar to that of reactive dyes. When R1 is finished on cottonfabrics and dyed products, it has a good application value to improve the UV resistance of cotton fabrics,and light resistance and durability of dyed cotton fabrics.
作者
田涛
戚栋明
崔志华
TIAN Tao;QI Dongming;CUI Zhihua(College of Textile Science and Engineering(International Institute of Silk),Zhejiang Sci-Tech University,Hangzhou 310018,China;Innovation Center of Advanced Textile Technology(Jianhu Laboratory),Shaoxing 312030,China)
出处
《浙江理工大学学报(自然科学版)》
2025年第2期221-228,共8页
Journal of Zhejiang Sci-Tech University(Natural Sciences)
基金
国家自然科学基金项目(21808210)
浙江省“尖兵”“领雁”研发攻关计划项目(2023C01096)。
关键词
活性染料
反应性紫外线吸收剂
耐光色牢度
二氯均三嗪
水溶性
reactive dye
reactive ultraviolet absorber
color fastness to light
dichlorotriazine
water soluble
