CNF-CMC梯度网络结构固定有机颜料对纸纱原纸着色效果的影响  

The effect of CNF-CMC gradient network structure fixed organic pigment on the coloring efficacy of paper yarn base paper

作　　者：梁晏搏 修慧娟 温亚兵 邓自立 江峰 严金英 李金宝 LIANG Yan-bo;XIU Hui-juan;WEN Ya-bing;DENG Zi-li;JIANG Feng;YAN Jin-ying;LI Jin-bao(College of Bioresources Chemical and Materials Engineering,National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi Province Key Laboratory of Papermaking Technology and Specialty Paper,Shaanxi University of Science&Technology,Xi′an 710021,China;Zhejiang Shunpu New Material Technology Co.,Ltd.,Quzhou 324400,China)

机构地区：[1]陕西科技大学轻工科学与工程学院,轻化工程国家级实验教学示范中心,陕西省造纸技术及特种纸品开发重点实验室,陕西西安710021 [2]浙江舜浦新材料科技有限公司,浙江衢州324400

出　　处：《陕西科技大学学报》2024年第1期6-11,共6页Journal of Shaanxi University of Science & Technology

基　　金：浙江省科技计划项目(2022C02074);浙江省龙游县重大科技攻关项目(JHXM2022146)。

摘　　要：相比传统造纸染料光热条件下易褪色的缺陷,水性有机颜料具有优异的着色力和高耐光耐候性,能够满足高端纸纱对着色剂着色效果和耐晒等级的要求.但有机颜料颗粒和植物纤维之间缺乏化学键和氢键作用,导致颜料在纸页结构中固定困难.本研究以纤维素纳米纤丝(CNF/TOCNF)为一级骨架网络,羧甲基纤维素(CMC)大分子为二级补强网络,共同构建多级梯度网络包络固定有机颜料颗粒,通过双层涂覆形式实现对颜料颗粒的分散和固定.结果表明,以梯度网络固定颜料颗粒可显著提升纸纱原纸的着色效果和色牢度,并对改善纸张强度和粗糙度也有积极作用.本研究对解决高端纸纱原纸生产中的着色技术难题具有重要的推动作用.Traditional paper dyes are easy to fade under photothermal conditions,in contrast,waterborne organic pigments have excellent tinctorial strength and high light and weather resistance,which can meet the requirements of high-end paper yarn to coloring efficacy and light fastness of the colorants.However,the lack of chemical and hydrogen bonds between organic pigment particles and plant fibers,and the pigments are difficult to fix in the structure of the paper.In this study,cellulose nanofibers(CNF/TOCNF)were used as the primary skeleton network and carboxymethyl cellulose(CMC)macromolecules were used as the second-order reinforcement network,together construct a multi-level gradient network to enclose and fix organic pigment particles.The dispersion and fixation of the pigment particles are realized by double coating.The results show that the coloring efficacy and colorfastness of the paper yarn base paper can be improved significantly by using the gradient network to fix the pigment particles,and has a positive effect on improving the strength and roughness of the paper.This study has an important role in solving the problem of coloring technology in the production of high-end paper yarn.

关 键 词：有机颜料 纸纱 梯度网络 着色 色牢度 

分 类 号：TS753.9[轻工技术与工程—制浆造纸工程]