Quality Evaluation of Ethiopian 100% Cotton Carded Ring Spun Yarn with Respect to USTER Standards

Table 4

Descriptive analysis of yarn imperfections.

Property	Mill code	Yarn count (Ne)	N	Mean	Std. deviation	Std. error	Min	Max
Thin places −50%	B3	19.8	10	8.00	7.6012	2.4037	0.00	26.00
		20.3	10	2.00	1.8856	0.5963	0.00	6.00
		38.2	10	194.80	26.9683	8.5281	144.00	248.00
	A2	23.47	10	74.70	161.7275	51.1427	10.00	534.00
		32.85	10	160.10	140.3776	44.3913	13.00	365.00
		36.2	10	56.90	48.9999	15.4951	16.00	160.00
	K3	15.28	10	14.10	6.60724	2.0894	4.00	26.00
		21.21	10	75.10	161.6453	51.1167	10.00	534.00
		32.85	10	140.20	35.8881	11.34881	88.00	190.00
	A0	21.6	10	239.40	179.40903	56.7341	0.00	506.00
		30	10	1112.60	215.7057	68.2121	844.00	1600.00
	A4	32	10	25.60	16.2289	5.1320	9.00	63.00
		40	10	166.00	73.1832	23.1426	102.00	339.00
Thick places +50%	B3	19.8	10	357.40	104.3245	32.9903	212.00	568.00
		20.3	10	190.00	46.1303	14.5877	110.00	258.00
		38.2	10	1246.20	88.7015	28.0499	1052.00	1362.00
	A2	23.47	10	758.90	383.8835	121.3946	485.00	1803.00
		32.85	10	997.00	216.9475	68.6048	742.00	1284.00
		36.2	10	827.60	174.9706	55.3306	583.00	1132.00
	K3	15.28	10	520.10	155.0824	49.0414	363.00	814.00
		21.21	10	756.00	385.3907	121.8712	464.00	1803.00
		32.85	10	807.20	79.64616	25.1863	679.00	956.00
	A0	21.6	10	1011.60	454.17354	143.6223	176.00	1606.00
		30	10	2213.80	251.07316	79.3963	1884.00	2746.00
	A4	32	10	404.00	73.13762	23.1282	281.00	490.00
		40	10	893.90	100.25795	31.7044	798.00	1071.00
Neps +200%	B3	19.8	10	375.80	138.62323	43.8365	164.00	618.00
		20.3	10	244.40	52.04955	16.4595	166.00	312.00
		38.2	10	2122.20	90.86473	28.7340	2050.00	2354.00
	A2	23.47	10	890.30	302.93235	95.7956	611.00	1523.00
		32.85	10	1567.90	267.69985	84.6541	1246.00	1958.00
		36.2	10	1277.30	190.97065	60.3902	924.00	1479.00
	K3	15.28	10	751.50	187.74051	59.3688	412.00	1127.00
		21.21	10	896.90	298.22678	94.3076	611.00	1523.00
		32.85	10	1676.10	177.56404	56.15068	1451.00	1918.00
	A0	21.6	10	922.60	327.07872	103.4314	258.00	1328.00
		30	10	3051.60	245.64256	77.6790	2734.00	3508.00
	A4	32	10	1042.00	166.88319	52.7731	814.00	1319.00
		40	10	1676.00	138.00242	43.6402	1513.00	1877.00