纺织学报 ›› 2019, Vol. 40 ›› Issue (02): 58-62.doi: 10.13475/j.fzxb.20180908405

• 纺织工程 • 上一篇    下一篇

喷气涡流纺纱线热黏合增强工艺

林燕燕1,2, 邹专勇1(), 陈玉香1, 杨艳秋1   

  1. 1.绍兴文理学院 浙江省清洁染整技术研究重点实验室, 浙江 绍兴 312000
    2.东华大学 纺织学院, 上海 201620
  • 收稿日期:2018-09-30 修回日期:2018-11-12 出版日期:2019-02-15 发布日期:2019-02-01
  • 通讯作者: 邹专勇
  • 作者简介:林燕燕(1996—),女,硕士生。主要研究方向为喷气涡流纺纱线加工技术。
  • 基金资助:
    国家自然科学基金资助项目(51573095)

Thermal adhesion enhancement process of air jet vortex spun yarn

LIN Yanyan1,2, ZOU Zhuanyong1(), CHEN Yuxiang1, YANG Yanqiu1   

  1. 1. Key Laboratory of Clean Dyeing and Finishing Technology in Zhejiang Province, Shaoxing University, Shaoxing, Zhejiang 312000, China
    2. College of Textiles, Donghua University, Shanghai 201620, China
  • Received:2018-09-30 Revised:2018-11-12 Online:2019-02-15 Published:2019-02-01
  • Contact: ZOU Zhuanyong

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摘要：

针对喷气涡流纺纱强力不高的问题,引入低熔点涤纶纤维利用热黏合机制增强喷气涡流纺纱线,借助T检验法比较不同热接触方式对纱线断裂功影响的显著性差异,通过正交试验研究热处理温度、热处理速度及牵伸倍数对纱线断裂功的影响规律,并进行最优工艺验证。结果表明:原纱采用非接触热处理方式断裂功提升更显著;纱线断裂功随热处理温度升高,先增加后下降,随速度增加,呈上升趋势;随牵伸倍数的增加,断裂功显著提高;最优热处理工艺为热处理温度145 ℃,热处理速度600 cm/min,牵伸倍数1.06。最优工艺热处理后喷气涡流纺纱线断裂功可提高13%。

关键词: 喷气涡流纺, 低熔点涤纶, 纱线断裂功, 热黏合

Abstract:

Aiming at poor strength of air jet vortex spun yarn, low-melting point polyester fiber was introduced to reinforce air jet vortex spun yarn by heat bonding. The significant differences of the influence of different thermal contact modes on the yarn fracture work were compared by means of T-test. Orthogonal design was used to study the influence of heat treatment temperature, heat treatment speed and draw ratio on the yarn fracture work, and the optimal process was verified. The results show that the original yarn subjected to non-contact heat treatment has significantly improved fracture work. The fracture work of yarns increases first and then decreases with the rise of heat treatment temperature. When the speed increases, it shows an upward trend. With the increase of the draw ratio, the fracture work improves obviously. The optimal heat treatment process is: heat treatment temperature of 145 ℃, heat treatment speed of 600 cm/min, and draw ratio of 1.06, and the fracture work of the jet vortex spun yarn can be increased by 13% after the optimal process heat treatment.

Key words: air jet vortex spinning, low melting point polyester, fracture work of yarn, thermal adhesion

中图分类号: 

  • TS131

表1

原料规格与性能指标"

纤维
种类		 线密度/
dtex		 长度/
mm		 断裂强度/
(cN·dtex-1)		 断裂伸长
率/%		 弹性模量/
(cN·dtex-1)
粘胶 1.33 38 2.506 17.53 4.82
涤纶 2.22 51 5.24 31.78 10.01

图1

热处理工艺流程图 1,8—纱筒;2,7—导纱器;3—后牵伸辊;4—热辊;5—热空气通道;6—前牵伸辊。"

表2

因素水平表"

水平 A B C
热处理温度/ ℃ 热处理速度/(cm·min-1) 牵伸倍数
1 130 300 1.00
2 145 600 1.03
3 160 900 1.06

图2

粘胶/低熔点涤纶喷气涡流纺原纱的SEM照片"

表3

正交试验结果及极差分析"

试验
序号		 A B A×B C 断裂功/
(N·mm)
1 1 1 1 1 86.545
2 1 2 2 2 91.369
3 1 3 3 3 89.443
4 2 1 2 3 92.680
5 2 2 3 1 88.253
6 2 3 1 2 88.798
7 3 1 3 2 84.205
8 3 2 1 3 87.105
9 3 3 2 1 88.862
K1 89.119 87.810 87.483 87.887
K2 89.910 88.909 90.970 88.124
K3 86.724 89.034 87.300 89.743
R 3.186 1.224 3.670 1.856

表4

最佳工艺结果"

指标
类型		 断裂强
力/N		 断裂伸
长率/%		 弹性模量/
(cN·dtex-1)		 断裂功/
(N·mm)
原纱 2.489 11.061 24.339 85.394
最佳工艺 2.809 11.339 25.321 96.534

图3

粘胶/低熔点涤纶喷气涡流纺纱线热处理后SEM照片"

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