基于高耐碱高耐氧漂分散染料的涤盖棉织物漂染一浴加工工艺  

One-bath process for bleaching and dyeing of polyester-covered cotton fabric using disperse dye with high resistance to alkalis and peroxides

作　　者：王小艳 马子婷 许长海[1] WANG Xiaoyan;MA Ziting;XU Changhai(College of Textiles&Clothing,Qingdao University,Qingdao,Shandong 266071,China)

机构地区：[1]青岛大学纺织服装学院,山东青岛266071

出　　处：《纺织学报》2023年第5期38-45,共8页Journal of Textile Research

基　　金：国家自然科学基金面上项目(21978117)。

摘　　要：为解决涤盖棉织物传统染整工艺流程长、能耗水耗高、生产效率低等问题,使用高耐碱高耐氧漂分散染料构建涤盖棉织物的漂棉染涤一浴一步加工工艺。通过耐碱性和耐氧漂性评价,确定所选用的分散染料在强碱和氧漂条件下的应用稳定性。探究了漂棉染涤一浴工艺中双氧水浓度、漂白阶段保温时间及涤纶染色阶段保温时间对涤盖棉织物棉组分白度值和涤组分K/S值的影响,确定最佳工艺条件为:双氧水质量浓度2 g/L,染色温度130℃,保温时间30 min。结果表明,漂棉染涤一浴工艺和传统工艺处理后的涤盖棉织物,棉组分白度值均接近80,涤组分色差值小于1.0,色牢度级别均超过4级,且漂棉染涤一浴工艺加工的涤盖棉织物强力损失更小。漂棉染涤一浴加工工艺可实现涤盖棉织物的短流程清洁加工。Objective The inner cotton component of polyester-covered cotton fabric is soft,comfortable,sweat-permeable and air-permeable,and the outer polyester component is anti-wrinkle and wear-resistant.Polyester-covered cotton fabric is widely used in daily wear,school uniforms,firefighting apparel,sanitation apparel and other fields.However,the conventional processes for bleaching and dyeing polyester-covered cotton fabrics have problems of high consumptions of water and energy,and low production efficiency.This research aims to use a disperse dye with high resistance to alkalis and peroxides to construct a one-bath process for bleaching and dyeing polyester-covered cotton fabrics.Method The selected disperse dye was evaluated for its resistance to alkalis and peroxides.Experiments were carried out to investigate the influence of hydrogen peroxide concentration,processing time,and processing temperature on the performances of bleaching and dyeing in one bath.The optimal process was defined by monitoring the whiteness of cotton component and the color depth(K/S)value of the polyester component.Results The synthesized disperse dye was shown to be of high alkali-resistant and high peroxide-resistant type,withstanding dyeing with at 2 g/L NaOH alkali regulator concentration and 5 g/L H 2O 2(30%)(Tabs.2 and 4).One-bath process for bleaching and dyeing polyester-covered cotton fabrics was designed based on the synthesized disperse dye with high resistance to alkali and peroxide.The influence of H 2O 2 concentrations and temperature maintaining time on the whiteness and K/S value of polyester-covered cotton fabric treated by one-bath dyeing polyester and bleaching cotton process were tested,respectively.Under the conditions of 2 g/L of H 2O 2(30%)and a temperature maintaining time of 0 min at 100℃,the whiteness of the cotton component of the polyester-covered cotton fabric reached 80,almost the same as the whiteness obtained by the conventional process.In addition,the concentration of H 2O 2(30%)and temperature maintaining

关 键 词：分散染料 涤盖棉织物 漂白 染色 短流程 漂棉染涤 一浴加工工艺 

分 类 号：TS192.5[轻工技术与工程—纺织化学与染整工程]