纺织学报 ›› 2020, Vol. 41 ›› Issue (07): 35-39.doi: 10.13475/j.fzxb.20191105505

• 纺织工程 • 上一篇    下一篇

刺辊速度对棉结变化和重新分布的影响

曹继鹏1,2(), 张明光1,2, 于学智1,2   

  1. 1.辽东学院 服装与纺织学院, 辽宁 丹东 118003
    2.辽东学院 辽宁省功能纺织材料重点实验室, 辽宁 丹东 118003
  • 收稿日期:2019-11-25 修回日期:2020-04-09 出版日期:2020-07-15 发布日期:2020-07-23
  • 作者简介:曹继鹏(1975—),男,教授,博士。主要研究方向为梳理理论及纺纱工艺技术。E-mail: cjp0521@163.com
  • 基金资助:
    辽宁省自然科学基金项目(2019MS-148);辽宁省高等学校创新人才支持计划项目(2018478)

Effect of taker-in speeds on variation and redistribution of nep

CAO Jipeng1,2(), ZHANG Mingguang1,2, YU Xuezhi1,2   

  1. 1. School of Clothing & Textile, Eastern Liaoning University, Dandong, Liaoning 118003, China;
    2. Liaoning Key Laboratory of Functional Textile Materials, Eastern Liaoning University, Dandong, Liaoning 118003, China
  • Received:2019-11-25 Revised:2020-04-09 Online:2020-07-15 Published:2020-07-23

摘要:

为在梳理过程中能够有效去除棉结,提升梳理及成纱质量,在4种不同的刺辊速度下对棉纤维进行梳理,将生条、刺辊落棉、盖板花和锡林漏底落棉分别采样,利用USTER AFIS测试仪对其棉结的含量和尺寸进行检测。结果显示:棉卷经梳理后其棉结总数下降20.58%~26.7%;棉卷中的棉结经过梳理后重新分布在生条、刺辊落棉、盖板花和锡林漏底落棉中,其中生条中的棉结含量最高,占总量的90%左右,依次为盖板花、刺辊落棉和锡林漏底落棉;与棉卷中棉结的平均尺寸相比,生条中棉结尺寸降低13.1%~14.2%,而刺辊落棉和盖板花中棉结尺寸分别增加12.6%~19.2%和8.4%~10.3%,锡林漏底落棉中棉结尺寸降低2.6%~4.6%;生条中棉结含量随着刺辊速度的增加总体呈现降低趋势。

关键词: 梳棉机, 刺辊, 棉结, 生条, 盖板花

Abstract:

In order to remove nep effectively in carding so as to improve carding and yarn quality, the cotton fibers were carded at 4 taker-in speeds, the content and size of nep in card sliver, taker-in droppings, flat strips and cylinder screen droppings were tested using USTER AFIS tester. Results show that total neps are reduced by 20.58%-26.7% after laps are carded; the neps in cotton lap are carded and redistributed in card sliver, taker-in droppings, flat strips and cylinder screen droppings, and nep percentage in card sliver is the highest, at about 90%, followed by that in flat strips, that in taker-in droppings and that in cylinder screen droppings; comparing with the average size of total neps in cotton lap, that in card sliver is decreased by 13.1%-14.2%, while that in taker-in droppings and that in flat strips are increased by 12.6%-19.2% and 8.4%-10.3%, respectively, and that in cylinder screen droppings is reduced by 2.6%-4.6%; nep content of card sliver has a tendency to decrease with the increase of taker-in speed.

Key words: cotton card, taker-in, nep, card sliver, flat strip

中图分类号: 

  • TS104.2

表1

试验原料的AFIS 测试结果"

纤维质量
平均长度/
mm
纤维根数
平均长度/
mm
5.0%根数
长度/mm
根数短绒率
(<16 mm)/%
棉结总数/
(粒·g-1)
棉结尺寸/
μm
带籽屑
棉结含量/
(粒·g-1)
带籽屑
棉结尺寸/
μm
粒杂含量/
(粒·g-1)
尘杂含量/
(粒·g-1)
可见
异物率/
%
25.7 21.7 34.3 25.9 225 675 4 1 136 31 142 0.69

表2

梳理过程中不同刺辊速度时棉结总数和带籽屑棉结的重新分布情况"

刺辊速度/
(r·min-1)
试样
名称
试样质量/
kg
棉结含量/
(粒·g-1)
棉结
总数/粒
棉卷经过
梳理后棉结
占比/%
带籽屑棉
结含量/
(粒·g-1)
带籽屑
棉结总数/
棉卷经过梳理后
带籽屑棉结
占比/%
棉卷 26.000 310 8 060 000 4 104 000
生条 25.041 228 5 709 348 90.17 1 25 041 23.21
800 盖板花 0.585 752 439 920 6.95 94 54 990 50.97
刺辊落棉 0.307 441 135 387 2.14 89 27 323 25.32
锡林漏底落棉 0.067 698 46 766 0.74 8 536 0.50
棉卷 25.700 310 7 967 000 4 102 800
生条 24.574 227 5 578 298 88.16 2 49 148 32.72
1 000 盖板花 0.601 796 478 396 7.56 84 50 484 33.61
刺辊落棉 0.451 479 216 029 3.41 111 50 061 33.33
锡林漏底落棉 0.074 737 54 538 0.86 7 518 0.34
棉卷 25.330 310 7 852 300 4 101 320
生条 23.997 224 5375328 87.17 1 23997 21.80
1 200 盖板花 0.578 779 450 262 7.30 87 50 286 45.68
刺辊落棉 0.657 421 276 597 4.49 53 34 821 31.63
锡林漏底落棉 0.098 656 64 288 1.04 10 980 0.89
棉卷 25.525 310 7 912 750 4 102 100
生条 24.005 206 4 945 030 85.26 2 48 010 33.18
1 400 盖板花 0.578 773 446 794 7.70 91 52 598 36.35
刺辊落棉 0.865 408 352 920 6.08 50 43 250 29.89
锡林漏底落棉 0.077 720 55 440 0.96 11 847 0.59

表3

不同刺辊速度下生条及几种落物中棉结总数和带籽屑棉结的平均尺寸"

刺辊速度/
(r·min-1)
棉卷 生条 盖板花 刺辊落棉 锡林漏底落棉
总棉结
尺寸/μm
带籽
屑棉结
尺寸/μm
总棉结
尺寸/μm
带籽
屑棉结
尺寸/μm
总棉结
尺寸/μm
带籽
屑棉结
尺寸/μm
总棉结
尺寸/μm
带籽
屑棉结
尺寸/μm
总棉结
尺寸/μm
带籽
屑棉结
尺寸/μm
800 681 1 078 590 761 751 1 151 795 1 035 657 765
1 000 681 1 078 592 747 744 1 204 812 1 127 654 842
1 200 681 1 078 590 782 738 1 138 772 1 053 650 859
1 400 681 1 078 584 761 746 1 149 767 1 058 663 889

表4

不同刺辊速度下梳理过程棉结含量变化"

刺辊速度/
(r·min-1)
棉结/(粒·g-1)
棉卷 生条 盖板花 刺辊
落棉
锡林漏
底落棉
800 228 752 441 698
1 000 310 227 796 479 737
1 200 224 779 421 656
1 400 206 773 408 720

表5

不同刺辊速度下梳理过程带籽屑棉结含量变化"

刺辊速度/
(r·min-1)
带籽屑棉结/(粒·g-1)
棉卷 生条 盖板花 刺辊
落棉
锡林漏底
落棉
800 1 94 89 8
1 000 4 2 84 111 7
1 200 1 87 53 10
1 400 2 91 50 11
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