全棉水刺非织造布的等离子体冷堆脱脂漂白工艺响应面法优化  

Optimization of plasma cold pad-batch degreasing/bleaching process for cotton spunlace nonwoven by response surface method

作　　者：刘骏韬 孙婷 涂虎 胡敏 张如全 孙雷[4] 罗霞 纪华 LIU Juntao;SUN Ting;TU Hu;HU Min;ZHANG Ruquan;SUN Lei;LUO Xia;JI Hua(School of Textile Science and Engineering,Wuhan Textile University,Wuhan,Hubei 430200,China;Winner Medical(Wuhan)Co.,Ltd.,Wuhan,Hubei 430415,China;State Key Laboratory of New Textile Materials and Advanced Processing Technologies,Wuhan Textile University,Wuhan,Hubei 430200,China;Winner Medical(Huanggang)Co.,Ltd.,Huanggang,Hubei 438021,China)

机构地区：[1]武汉纺织大学纺织科学与工程学院,湖北武汉430200 [2]稳健医疗(武汉)有限公司,湖北武汉430415 [3]武汉纺织大学省部共建纺织新材料与先进加工技术国家重点实验室,湖北武汉430200 [4]稳健医疗(黄冈)有限公司,湖北黄冈438021

出　　处：《纺织学报》2023年第11期132-141,共10页Journal of Textile Research

基　　金：湖北省重点研发计划项目(2022BAD031)。

摘　　要：为解决全棉水刺非织造布冷堆脱脂漂白处理时间长的问题,采用等离子体冷堆脱脂漂白工艺对其进行处理,借助扫描电子显微镜和红外光谱仪分析材料的微观形貌和化学结构,设计单因素实验探究等离子体处理功率、等离子体处理时间、冷堆时间对材料白度、断裂强力、吸水率的影响,并在此基础上设计响应面法优化实验,确定最佳工艺参数。结果表明:等离子体处理可去除非织造布表面棉籽壳等异物杂质并在布面留下孔洞,经冷堆处理后孔洞得到一定消除;等离子体处理可减少棉纤维表面脂类物质,增加羟基含量,提高棉纤维的亲水性;经响应面法优化后得到最佳优化工艺条件为等离子体处理功率2 kW、等离子体处理时间11 s、冷堆时间6.5 h,经过此条件处理的全棉水刺非织造布的白度可达到75.8836%。Objective Cotton fiber is a natural cellulose fiber with a wide range of applications.Cotton spunlace nonwovens as a cotton fiber product are widely used in medical textile and personal protection.However,for degreasing and bleaching of cotton spunlace nonwovens,the conventional cold pad-batch process faces the problems of long processing time and low production efficiency.Therefore,novel technologies need to be developed to reduce cold pad-batch time and improve production efficiency.Method The cotton spunlace nonwovens were plasma treated using PG-10000F plasma equipment,and the treatment solution prepared from 4 g/L NaOH,6 g/L H_(2)O_(2),2 g/L tetraacetylethylenediamine(TAED),and 2 g/L fatty alcohol polyoxyethylene ether was stirred evenly by magnetic stirring.After plasma treatment,the cotton spunlace nonwoven was immediately put into a self-sealing bag containing hydrogen peroxide activation solution with a bath ratio of 1∶20,then reacted within a certain time from 0 to 24 h at 30℃.The cotton spunlace nonwoven was then soaked in warm water at 60℃,and washed with water twice for removing impurities.Finally,the degreased/bleached cotton nonwoven fabric was obtained after drying in an oven at 40℃ for 4 h.Results The pores formed by plasma treatment were properly eliminated in the bleaching process(Fig.3).Plasma treatment and hydrogen peroxide activation treatment were adopted to smooth the fiber surface(Fig.4),while the plasma treatment removed lipid substances from the surface of cotton fibers and improve the hydrophilicity of cotton fibers(Fig.5).Plasma treatment time and cold pad-batch time were unchanged for all samples,and the material whiteness was the highest when the plasma treatment power was at 2 kW(Fig.6(a))and the plasma treatment time was 10 s(Fig.6(b)).Plasma treatment power and plasma treatment time remained unchanged,and there was no significant change in whiteness after 6 h of cold pad-batch time(Fig.6(c)).As the plasma treatment power increased,the water absorption showed an upward tre

关 键 词：响应面法 等离子体技术 冷堆 全棉水刺非织造布 脱脂漂白工艺 水刺法加固 

分 类 号：TS174.8[轻工技术与工程—纺织材料与纺织品设计] TS192.7[轻工技术与工程—纺织科学与工程]