双环境背景稳态变色织物的制备及变色性能  

Preparation and discoloration properties of steady-state color-changing fabrics with dual environmental backgrounds

作　　者：毛丽芬 肖红 代国亮 毛庆辉[1] 麻伍军 李敏[1] MAO Lifen;XIAO Hong;DAI Guoliang;MAO Qinghui;MA Wujun;LI Min(Textile and Clothing College of Nantong University,Nantong 226019,China;Institute of Systems Engineering,Chinese People's Liberation Army Academy of Military Sciences,Beijing 100010,China)

机构地区：[1]南通大学纺织服装学院,江苏南通226019 [2]中国人民解放军军事科学院系统工程研究院,北京100010

出　　处：《印染》2024年第5期45-50,共6页China Dyeing and Finishing

基　　金：十四五国家重点研发计划项目(2022YFB3807105)。

摘　　要：针对常规温致变色纺织品因仅有一个变色点而在某些特殊领域应用时无法实现自主控制颜色的问题,利用分散染料不变色,以及变色微胶囊在高温条件下呈无色态和低温条件下呈有色态的性能特点,将双稳态温致变色微胶囊与分散染料复配,配制出高温浅棕-低温深灰、高温深绿-低温红棕和高温黄绿-低温中灰三种稳态互变的温致变色色浆,并采用筛网印花法将印花色浆施加到纺织品上,制备具有双环境背景稳态互变的迷彩织物。印制的迷彩织物高温和低温变色响应时间分别约为20 s和120 s,变色循环可达200次,耐摩擦色牢度为4~5级,耐水洗色牢度为4级,耐日晒色牢度为3级,且手感较好。此外,分别通过高温和低温刺激,印制的迷彩织物在-5~60℃的环境温度范围内可以稳态呈现两种不同的颜色效果,从而实现对迷彩织物的自主呈色控制。Aiming at the problem that conventional thermochromic textiles cannot achieve independent color control when applied in some special fields because of only one color change point,bistable thermochromic mi⁃crocapsules are compounded with disperse dyes by utilizing the performance characteristics that disperse dyes do not change color and color-changing microcapsules are colorless at high temperature and colored at low temperature.Three thermochromic color pastes with steady-state interconversion of high temperature light brown-low temperature dark gray,high temperature dark green-low temperature red brown and high temperature yellow green and low temperature medium gray are prepared.The screen printing method is used to apply the printing paste to the textile to prepare a camouflage fabric with dual environmental background steady-state interconversion.The high temperature and low temperature discoloration response time of the printed camouflage fabric is about 20 s and 120 s,and the discoloration cycle can reach 200 times.The color fastness to rubbing is Grade 4-5,the color fastness to washing is Grade 4,the color fastness to sunlight is Grade 3,and the handle is good.In addition,through the stimulation of high temperature and low temperature respectively,the printed camouflage fabric can steadily present two different color effects at the ambient tem⁃perature range of-5-60℃,so as to realize the autonomous color control of the camouflage fabric.

关 键 词：印花 迷彩织物 温致变色 双稳态变色 变色灵敏度 循环稳定性 

分 类 号：TS194.438[轻工技术与工程—纺织化学与染整工程]