涤纶针织鞋材超临界CO_(2)无水染色性能  

Research on supercritical CO_(2) waterless dyeing property of polyester knitted shoe materials

作　　者：宋洁 蔡涛 郑福尔 郑环达[1,2] 郑来久 SONG Jie;CAI Tao;ZHENG Fuer;ZHENG Huanda;ZHENG Laijiu(Liaoning Provincial Key Laboratory of Supercritical CO 2 Dyeing,Dalian Polytechnic University,Dalian,Liaoning 116034,China;National Supercritical Fluid Dyeing Technology Research Center,Dalian,Liaoning 116034,China;Shishi CTES Research Institute of Apparel and Accessories Industry,Shishi,Fujian 362700,China)

机构地区：[1]大连工业大学辽宁省超临界二氧化碳无水染色重点实验室,辽宁大连116034 [2]全国超临界流体无水染色技术研发中心,辽宁大连116034 [3]石狮市中纺学服装及配饰产业研究院,福建石狮362700

出　　处：《纺织学报》2023年第5期46-53,共8页Journal of Textile Research

基　　金：国家自然科学基金项目(21908015);辽宁省教育厅高等学校基本科研项目(J202152);福建省第七批省引才“百人计划”团队项目(202102);大连市科技创新基金项目(2022JJ12SN055);大连市重点科技研发计划项目(2022YF12GX057);大连市高层次人才创新支持计划项目(2020RQ019)。

摘　　要：为解决传统染色高污染、高能耗问题,实现鞋材无水清洁化染色,研究了涤纶针织鞋材在超临界CO_(2)体系中的染色性能,分析了染色温度、压力、时间以及CO_(2)流量对针织鞋材染色效果的影响。在实验条件范围内,染色鞋材的K/S值随温度、压力的升高而增大,并最终趋于稳定,获得最佳染色工艺条件为:染色温度120℃,染色压力24 MPa,染色时间60 min, CO_(2)流量400 kg/h。涤纶鞋材的耐摩擦和耐皂洗色牢度均达到4级以上。并进一步探究了染色温度、压力对针织鞋材力学性能的影响。结果显示:鞋材的抗弯刚度、最大抗弯力与断裂强力、顶破强力随温度、压力的上升而增大;断裂伸长率随温度、压力的上升而降低;收缩率随温度、压力的上升而增大;鞋材的表面摩擦因数无明显变化;其中温度对鞋材力学性能的影响大于压力的影响。Objective Knitted sports shoe materials have the advantages of structural integration,light weight,comfort and low cost,which attractes wide attention from the industry and consumers in recent years.However,with the increasingly prominent environmental pollution caused by conventional aqueous dyeing,how to achieve the eco-friendly dyeing of sports shoe materials has become the key development direction.Method In order to solve the problems of serious dyeing pollution and high energy consumption in the conventional dyeing,waterless dyeing of polyester knitted shoe materials was conducted with Disperse Yellow 54 using supercritical CO_(2) as medium.Influences of dyeing temperature,pressure,time and CO_(2) flow on the K/S values and levelling property were analyzed.The mechanical properties of polyester knitted shoe materials before and after dyeing were investigated,including bending,shrinkage,friction,tensile and durable properties.Results The results showed that supercritical CO_(2) displayed obvious influence on the dyeing properties of polyester knitted shoe materials.In supercritical CO_(2) dyeing system,the K/S values of the dyed polyester knitted shoe materials increased significantly with the rising of dyeing pressure,temperature and time.This is mainly because the increasing CO_(2) temperature and pressure present more and more plasticizing effect on polyester fiber.The dissolved dye molecules were more likely to approach the fiber interface,and would complete the adsorption through self-diffusion.Compared with aqueous dyeing,the dyeing process of polyester knitted shoe materials was able to completed with in 60 min in supercritical CO_(2) and the change of CO_(2) flow rate showed no significant influence on the K/S values.The deviation values of K/S data fluctuated around 0.1 at pressure ranging from 18 MPa to 26 MPa,temperature ranging from 105℃to 125℃,time ranging from 20 min to 100 min as well as a CO_(2) flow from 380 kg/h to 460 kg/h,which represents good levelness.After supercritical CO_(2) dyei

关 键 词：超临界CO_(2) 针织鞋材 涤纶 染色性能 力学性能 

分 类 号：TQ630[化学工程—精细化工]