纺织学报 ›› 2019, Vol. 40 ›› Issue (01): 79-83.doi: 10.13475/j.fzxb.20171205906

• 染整与化学品 • 上一篇    下一篇

聚乳酸织物载体染色性能

武奇奇1,2, 李敏1,2, 刘怡宁3, 王乐军3, 张丽平1,2, 付少海1,2()   

  1. 1.江苏省纺织品数字喷墨印花工程技术研究中心, 江苏 无锡 214122
    2.生态纺织教育部重点实验室(江南大学),江苏 无锡 214122
    3.恒天纤维集团有限公司, 北京 100020
  • 收稿日期:2017-12-29 修回日期:2018-08-25 出版日期:2019-01-15 发布日期:2019-01-18
  • 通讯作者: 付少海
  • 作者简介:武奇奇(1995—),女,硕士生。主要研究方向为聚乳酸织物的载体染色性能。
  • 基金资助:
    国家重点研发计划项目(2017YFB0309300)

Dyeing properties of polylactic acid fabric by carrier dyeing method

WU Qiqi1,2, LI Min1,2, LIU Yining3, WANG Lejun3, ZHANG Liping1,2, FU Shaohai1,2()   

  1. 1. Jiangsu Engineering Research Center for Digital Textile Inkjet Printing, Wuxi, Jiangsu 214122, China
    2. Key Laboratory of Eco-Textiles (Jiangnan University), Ministry of Education, Wuxi, Jiangsu 214122, China
    3. Hengtian Fiber Group Co., Ltd., Beijing 100020, China
  • Received:2017-12-29 Revised:2018-08-25 Online:2019-01-15 Published:2019-01-18
  • Contact: FU Shaohai

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摘要：

针对分散染料在常压下染色聚乳酸(PLA)织物得色浅,而高温高压染色织物强力损伤大的问题,采用载体染色法,研究了载体种类、载体用量、染色温度和时间等因素对PLA织物染色性能的影响。借助扫描电子显微镜和X射线衍射仪对染色纤维进行了表征,并分析了最佳工艺下分散染料在PLA织物上的染色性能。结果表明:在载体90BHC质量分数为0.25%、染料分散红SE-3B用量为2%(o.w.f)、温度为90 ℃、保温时间40 min的条件下,PLA织物表观色深值(K/S值)可超过高温高压染色的效果(K/S值为23.21),PLA织物顶破强力损伤较小(下降2.7%);纤维表面没有受到损伤,同时染色过程对纤维晶体形态没有影响;该染色方法获得的PLA织物透染性较好,耐日晒色牢度和耐皂洗色牢度优良。

关键词: 聚乳酸织物, 分散染料, 载体染色, 顶破强力, 染色性能

Abstract:

In order to solve the shallow coloration of polylactic acid(PLA) dyed fabrics under normal pressure and the damage of fabrics dyed under high temperature and pressure, the influence of dyeing factors such as carrier type and dosage and dyeing temperature on dyeing properties of PLA fabrics were investigated by carrier dyeing method. By analyzing the scanning electro microscopy and X-ray diffraction of the dyed fabric, the dyeing properties of disperse dyes on PLA fabrics under optimum conditions were studied. It is found that the apparent color depth value (K/S value) of PLA fabric can reach the same effect as high temperature and pressure dyeing (K/S value is 23.21) under the conditions of the carrier (90BHC, 0.25%), disperse red SE-3B (2% o.w.f) and temperature of 90 ℃ and holding for 40 min, while the burst strength loss of fabric is lower (decreased 2.7%). The fiber surface is not damaged, and the dyeing process has no effect on the crystal morphology of the fiber. The dyeing properties of disperse dyes on PLA fabrics were studied. The fiber-striping test shows that the PLA fabrics obtained by this dyeing method is better in dye penetration. The fastness to sunlight and color fastness to soaping shows that the fastness of disperse dyes on PLA fabrics is excellent.

Key words: polylactic acid fabric, disperse dye, carrier dyeing, burst strength, dyeing property

中图分类号: 

  • TS193.5

图1

载体染色工艺曲线"

图2

高温高压染色工艺曲线"

图3

常规染色工艺曲线"

表1

载体种类对K/S值的影响"

载体种类 K/S值 载体种类 K/S值
1-烷基-2-吡咯烷酮 6.54 马来酰亚胺 8.92
N-羟基琥珀酰亚胺 7.54 乳酸乙酯 10.03
90BHC 23.52

表2

不同染色方法的染色效果对比"

染色方法 K/S值 L* a* b* C* ΔE 顶破强力/N 强力下降率/%
载体染色法 23.21 37.36 56.68 14.34 58.87 0.14 961.1 2.7
高温高压染色 19.28 43.75 59.68 19.98 63.78 0.20 880.8 10.8

图4

不同因素对K/S值的影响 (a) Carrier dosage;(b) Dyeing temperature;(c) Temperature maintaining time"

表3

不同染色方法染色织物的性能对比"

染色方法 染料 K/S值 上染百分率/% 顶破强力/N 耐皂洗牢度/级 耐晒牢度/级
变色 沾色
载体染色 分散红SE-3B 23.27 50.1 960.02 5 5 5
常规染色 分散红SE-3B 4.34 12.6 961.31 5 5 4

图5

载体染色前后纤维SEM照片"

图6

染色前后织物XRD图"

图7

染料上染速率曲线"

图8

染料提升力曲线"

图9

载体染色后纤维切片"

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