刺辊速度对棉结变化和重新分布的影响

doi:10.13475/j.fzxb.20191105505

摘要/Abstract

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

曹继鹏, 张明光, 于学智. 刺辊速度对棉结变化和重新分布的影响[J]. 纺织学报, 2020, 41(07): 35-39.

CAO Jipeng, ZHANG Mingguang, YU Xuezhi. Effect of taker-in speeds on variation and redistribution of nep[J]. Journal of Textile Research, 2020, 41(07): 35-39.

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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/ 粒	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

刺辊速度/ (r·min^-1)	棉卷		生条		盖板花		刺辊落棉		锡林漏底落棉
刺辊速度/ (r·min^-1)	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

刺辊速度/ (r·min^-1)	棉结/(粒·g^-1)
刺辊速度/ (r·min^-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

刺辊速度/ (r·min^-1)	带籽屑棉结/(粒·g^-1)
刺辊速度/ (r·min^-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