纺织学报 ›› 2017, Vol. 38 ›› Issue (05): 104-109.doi: 10.13475/j.fzxb.20160107006

• 染整与化学品 • 上一篇    下一篇

苎麻织物的柠檬酸/多元醇抗皱整理

  

  • 收稿日期:2015-01-23 修回日期:2017-02-21 出版日期:2017-05-15 发布日期:2017-05-16

Anti-crease finishing of ramie fabrics with citric acid and polyol

  • Received:2015-01-23 Revised:2017-02-21 Online:2017-05-15 Published:2017-05-16

摘要:

针对柠檬酸整理苎麻织物易泛黄的缺点,系统研究了柠檬酸/ 多元醇联合整理技术。通过高温焙烘阶段柠檬酸与多元醇之间的酯化反应,减少乌头酸等不饱和酸副产物的产生,进而显著提高了整理后苎麻织物的白度。研究了醇的种类、柠檬酸的浓度、柠檬酸与丙三醇的比例以及焙烘工艺条件对苎麻织物抗皱整理效果的影响。结果表明:丙三醇与柠檬酸联合整理可获得良好的整理效果;当丙三醇与柠檬酸物质的量比为2:1,柠檬酸质量分数为4%,次磷酸钠质量分数为5.5%,渗透剂JFC质量浓度为1g/L,预烘温度为100℃,焙烘时间为5 min,焙烘温度为175 ℃,时间为3 min时,整理后苎麻织物的折皱回复角为194°,白度为76.83%,断裂强力为375N。

关键词: 苎麻织物, 柠檬酸, 多元醇, 抗皱整理, 白度

Abstract:

In order to overcome the shortcomings of yellowness by anti-wrinkle finishing of ramie fabric with citric acid, the polycarboxylic acid and polyol mixed finishing process of ramie fabric was studied. Owing to the reduction of aconitic acid and other unsaturated acid by the esterification reaction between citric acid and polyol during the baking stage, the whiteness of the finished ramie fabric significantly improved. The influences of the type of alcohol, concentration of citric acid, mole ratio of citric acid and glycerol, and curing process were investigated. The results indicated that the optimum finishing results are obtained by the polycarboxylic acid and polyol mixed finishing process when the mole ratio of glycerol and citric acid is 2:1 and mass concentration of citric acid is 4 %, the mass concentration of sodium hypophosphite is 5.5 %, the mass concentration of JFC is 1 g/L, the drying temperature is 100 ℃, the curing temperature is 175 ℃, and the curing time is 3 min. The finished ramie fabric has crease recovery angle 194 °, CIE whiteness 76.83 % and breaking strength 375 N.

Key words: ramie fabric, citric acid, polyol, anti-crease finishing, whiteness

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