基于泡沫法给碱的粘胶织物活性红24无尿素印花  

Urea-free printing on viscose fabrics using Reactive Red 24 by foam fed alkali

作　　者：崔芳 张鑫卿 殷斐 李大伟 雷苗苗 谢志勇 CUI Fang;ZHANG Xinqing;YIN Fei;LI Dawei;LEI Miaomiao;XIE Zhiyong(School of Textile Science and Engineering,Xi′an Polytechnic University,Xi′an,Shaanxi 710048,China;Key Laboratory of Functional Textile Material and Product,Ministry of Education,Xi′an Polytechnic University,Xi′an,Shaanxi 710048,China;National Innovation Center of Advanced Dyeing and Finishing Technology,Tai′an,Shandong 271000,China;Xi′an Key Laboratory of Ecological Dyeing and Finishing Technologies,Xi′an,Shaanxi 710048,China;Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing&Finishing,Wuhan Textile University,Wuhan,Hubei 430200,China)

机构地区：[1]西安工程大学纺织科学与工程学院,陕西西安710048 [2]西安工程大学功能性纺织材料及制品教育部重点实验室,陕西西安710048 [3]国家先进印染技术创新中心,山东泰安271000 [4]西安市生态染整技术重点实验室,陕西西安710048 [5]武汉纺织大学生物质纤维与生态染整湖北省重点实验室,湖北武汉430200

出　　处：《纺织学报》2025年第2期138-144,共7页Journal of Textile Research

基　　金：国家先进印染技术创新中心科研基金项目(ZJ2021A11);中国纺织工业联合会科技指导性项目(2020020);生物质纤维与生态染整湖北省重点实验室开放基金项目(STRZ2020010)。

摘　　要：为降低粘胶织物活性染料印花的水耗、能耗和尿素消耗量,利用泡沫法给湿过程对印制活性染料色浆的粘胶织物施加固色碱剂,研究活性染料泡沫法给碱—湿蒸无尿素印花。探讨了泡沫的耐碱稳定性,研究了汽蒸时间、汽蒸温度和碳酸钠质量浓度对活性红24泡沫法给碱—湿蒸印花粘胶织物表观色深的影响,并分析了综合印花效果。结果表明:含4 g/L十二烷基硫酸钠和12 g/L海藻酸钠的发泡原液在碳酸钠质量浓度为90 g/L、pH值为11.51时,泡沫的初见液时间和破裂半衰期仍分别高达14.30 min和80.67 min,耐碱稳定性良好;质量分数为3%的活性红24对粘胶织物进行泡沫法给碱—湿蒸印花的适宜固色条件为碳酸钠质量浓度30 g/L、于115℃汽蒸13 min;泡沫法给碱—湿蒸印花织物的花型轮廓清晰度较好、无明显渗化现象,颜色递深性良好,图案颜色均匀性有待提高,耐干、湿摩擦色牢度分别达4~5级和4级及以上。Objective Fabrics made of viscose fibers are very popular because of their good hygroscopicity and breathability,as well as wearing comfort.However,the conventional printing on viscose fabrics with reactive dyes is both water and energy intensive.In addition,huge amount of urea is consumed to absorb moisture from the steam,assisting the dissolution of dyes and swelling of fibers,which is not environmentally friendly.In order to reduce the water,energy and urea consumptions in printing viscose fabrics with reactive dyes,a urea-free printing process based on the foam-assisted alkali feeding and wet steaming procedures is proposed.Method In this study,the alkali agent was applied onto a viscose fabric printed with reactive dyes by pre-wetting with foam,and the moisture absorption function of urea was replaced by utilizing the steam condensation to produce water on the viscose fabric with low wet pick-up during steaming.The alkali-resistant stability of foam prepared by using sodium dodecyl sulfate(SDS)as the foaming agent and sodium alginate(SA)as the foam stabilizer was investigated.The influence of different factors on the color strength of viscose fabric printed with Reactive Red 24 was studied,and the comprehensive printing effects were also analyzed.Results The drop emergence time(DET,t 0)and half-life period of decay(HPD,t 1/2)of the foam prepared with 4 g/L of SDS and 12 g/L of SA can reach 14.30 min and 80.67 min respectively,even when the mass concentration of sodium carbonate in the foaming stock solution was 90 g/L with a pH value of 11.51,indicating a good alkali-resistant stability.When the viscose fabrics printed with 3%(mass fraction)of Reactive Red 24 were screen printed with foam prepared with the foaming stock solution containing 4 g/L of SDS,12 g/L of SA and 30 g/L of sodium carbonate,and then directly steamed at different temperatures for certain time without intermediate drying,the prints can obtain highest K/S value when steamed at 115℃for 13 min.For the viscose fabrics printed with 3%(mass f

关 键 词：无尿素印花 活性染料 粘胶织物 泡沫稳定性 泡沫法给碱 湿蒸固色 

分 类 号：TS194.4[轻工技术与工程—纺织化学与染整工程]