摘要
为解决涤纶/棉混纺织物着色过程中,染料印染工艺流程长、污染大、颜料印花牢度低等问题,采用乳液聚合法将苯乙烯和丙烯酸丁酯聚合在染料表面,制备新型(红、黄、蓝)彩色乳胶粒着色剂,并通过丝网印花技术将彩色乳胶粒整理到织物上,制备了无黏合剂、高印花牢度的彩色涤纶/棉印花织物。探究了乳化剂组成、软硬单体比、焙烘温度对乳胶粒的制备及其印花性能的影响;研究了彩色乳胶粒的微观形貌、热性能、粒径及粒径分布、稳定性及其印花性能。结果表明:当OP-10乳化剂占乳化剂总量的5/8、R-4006乳化剂占乳化剂总量的2/8、R-4001乳化剂占乳化剂总量1/8、软硬单体比为1∶1时,制备的彩色乳胶粒性能最佳;此时,乳胶粒的平均粒径在200 nm以内、多分散指数在0.1以下,离心稳定性与耐热稳定性均在95%以上;在不需要添加黏合剂的情况下,乳胶粒印花涤纶/棉混纺织物的耐皂洗色牢度可达3~4级,耐干湿摩擦色牢度可达3~4级;乳胶粒印花涤纶织物的耐皂洗色牢度可达4级,耐干湿摩擦色牢度可达3~4级。
Objective In order to address the long dyeing process,large pollution and low pigment printing fastness in the coloring process of polyester/cotton blended fabrics,styrene and butyl acrylate were polymerized on the surface of the dye by emulsion polymerization to synthesis new red,yellow and blue colored latex particles.The colored latex particles were used as adhesive-free printing colorants for polyester and polyester-cotton fabrics.Using the screen-printing technology,the colored latex particles were used to prepare a binder-free and high printing fastness of colored polyester-cotton printed fabrics.Method The ammonium persulfate initiator was added to the pre-emulsion to initiate the polymerization of the monomer on the surface of the dye.The mixed solution of dye,styrene and butyl acrylate was added to the aqueous solution of emulsifier,which were then stirred at high speed for 20 min to obtain the pre-emulsion until the completion of the polymerization reaction to obtain colored latex particles.The prepared latex particles are mainly composed of dyes and polymers,where the polymer formed a uniform and complete film on the surface of the fabric,anchoring the dye to the surface of the fabric and imparting color fastness to the print.Results The study was focused on the effects of different factors on the formation of latex particles and their printing properties.The microscopic morphology,thermal properties,particle size and particle size distribution,stability and printing properties of colored latex particles were studied.The effects of emulsifier composition,hard to soft monomers ratio and baking temperature on the preparation and printing performance of latex granules were explored.With the increase of OP-10 emulsifier,the particle average size of latex particles showed a gradual increase trend,and the dispersion coefficient gradually decreased.With the proportion of soft monomers increase,the particle average size became larger with a decrease in dispersion coefficient.Particle size and hard to soft monomers ratio have an impact on color.The increase of particle size and the proportion of soft monomers were found to be conducive to the increase of K/S value.According to the changes of △E before and after rubbing,the effects of different factors on printing fastness were explored.The increase in the proportion of soft monomers was conducive to the printing fastness of the fabric,but it would affect the hand feel of the fabric.Baking temperature exhibited little effect on rubbing fastness.Through experiments,the optimal preparation process of latex particles was obtained,where OP-10 emulsifier accounted for 5/8 of the total emulsifier,R-4006 emulsifier accounted for 2/8 of the total emulsifier,and R-4001 emulsifier accounted for 1/8 of the total emulsifier,and the ratio of soft to hard monomers was 1∶1.Conclusion In this work,the red,yellow and blue nano-latex particles that can be used for binder-free printing were successfully prepared.The prepared latex particle average size is within 200 nm,the dispersion coefficient is below 0.1,the centrifugal stability and heat resistance stability are more than 95%.The colored latex granules show a small particle size,uniform particle size distribution and high stability.In the case of printing without binder,the soaping fastness of latex particle printing on polyester can reach 4 grades,and the dry and wet friction fastness can reach 3-4 grades;whereas the soaping fastness on polyester cotton can reach 3-4 grades,and the dry and wet rubbing fastness can reach 3-4 grades.The color of the printed fabric is uniform and bright,and the printed fabric has good color fastness.
作者
蔡丽云
欧阳承辉
黄泽洋
王成成
关玉
付少海
张丽平
CAI Liyun;OUYANG Chenghui;HUANG Zeyang;WANG Chengcheng;GUAN Yu;FU Shaohai;ZHANG Liping(College of Textile Science and Engineering,Jiangnan University,Wuxi,Jiangsu 214122,China;Key Laboratory of Eco-Textiles(Jiangnan University),Ministry of Education,Wuxi,Jiangsu 214122,China)
出处
《纺织学报》
北大核心
2025年第10期135-142,共8页
Journal of Textile Research
基金
中国纺织工业联合会应用基础研究项目(J202208)
国家自然科学基金面上项目(22278185)。
关键词
彩色乳胶粒
印花
涤纶/棉混纺织物
色牢度
无黏合剂
乳液聚合
染料
colored latex particle
printing
polyester/cotton blended fabric
color fastness
adhesive-free
emulsion polymerization
dye
