苯甲醇对腈纶纤维阳离子染料染色的作用机制

纺织学报 ›› 2011, Vol. 32 ›› Issue (5): 80-85.

苯甲醇对腈纶纤维阳离子染料染色的作用机制

杜旭宜,郑今欢,申屠艳艳,娄涛

浙江理工大学

收稿日期:2010-05-04 修回日期:2010-09-09 出版日期:2011-05-15 发布日期:2011-05-15
通讯作者: 杜旭宜

Mechanism of Benzyl Alcohol on Acrylic Fiber Dyeing with Cationic Dye

Received:2010-05-04 Revised:2010-09-09 Online:2011-05-15 Published:2011-05-15

摘要/Abstract

摘要： 摘要：为了降低腈纶阳离子染料染色的温度，本文以腈纶纱线为研究对象，在85℃无促进剂染色、85℃加苯甲醇染色和常规染色的条件下，选用提纯的阳离子翠蓝X-GB对其进行染色，分别从染色动力学和热力学两方面探讨苯甲醇对腈纶阳离子染料染色的作用机理。实验结果表明：升高染色温度和加入苯甲醇染色均能提高阳离子翠蓝X-GB对腈纶纤维的平衡吸附量、染色速率常数、扩散系数和活化能；阳离子翠蓝X-GB上染腈纶纤维的吸附等温线服从Langmuir型吸附等温线，染色温度的升高和苯甲醇的加入能在一定程度上提高染料的分配系数、标准亲和力及纤维对染料的饱和吸附值。应用苯甲醇能较好地实现腈纶85℃染色，既能有效地提高纤维对染料的吸附量，又能减少高温染色对纤维造成的损伤。

关键词: 腈纶纤维, 染色动力学, 染色热力学, 吸附等温线, 苯甲醇

Abstract: Abstract: The purpose of this research was to reduce dyeing temperature of acrylic fiber, the acrylic yarn was dyed till equilibrium with pure Cationic Turquoise Blue X-GB under the conditions of benzyl alcohol leather dyeing or not at 85℃ and conventional dyeing. The influence of benzyl alcohol on the dyeing mechanism of acrylic fiber with cationic dye was analyzed through kinetics and thermodynamics studies. The results have shown that increasing dyeing temperature and adding benzyl alcohol both can improve the equilibrium adsorption amount of acrylic fibers, dyeing rate constants, diffusion coefficients and activation energy for acrylic fiber dyeing with cationic coroba blue X-GB.The adsorption isotherm obtained was identified to be a Langmuir type. When the temperature increased and benzyl alcohol added the partition ratio and the standard affinity and the adsorption saturation value increased drastically. The paper has achieved the 85 ℃ dyeing of acrylic fiber using benzyl alcohol , which can effectively increase the dye adsorption of acrylic fiber and reduce the damage of fiberbecause of the high temperature dyeing.

Key words: acrylic fiber, dyeing kinetics, dyeing thermodynamics, adsorption isotherms, benzyl alcohol.

杜旭宜;郑今欢;申屠艳艳;娄涛. 苯甲醇对腈纶纤维阳离子染料染色的作用机制[J]. 纺织学报, 2011, 32(5): 80-85.

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