Complex polyamide yarns for trocot industry

Complex polyamide yarns for trocot industry

COMPLEX POLYAMIDE YARNS FOR TRICOT INDUSTRY

3,3 tex intermingled dull; 5,0 tex intermingled; 6,7 tex intermingled dull; 3,3 tex; 5,0 tex; 6,7 tex till 30 tw/m; 10,0 tex; 15,6 tex till 30 tw/m. They are meant for production of warm clothes (coats, costumes, sweaters and others) for sports, curtain and other tricot articles.

Physico-mechanical indexes to complex polyamide yarn with low twisting - 3,3; 5,0; 6,7; 10,0; 15,6 tex (TU U 6-00204048.144-2000)
№	Index name	Norm for yarn
		3,3; 5,0; 6,7; 10,0; 15,6 tex
		Highest quality	First quality	Second quality
1.	Specific tearing force, mN/tex, not less	372	353	353
2.	Yarn lengthening at break, %	40,0±5,0	41,0±5,0	42,0±5,0
3.	Coefficient of variation at yarn lengthening at break, %, not more	15,0	15,0	15,0
4.	Deviation of conditioned linear density from nominal one, % for linear density, 15,6 tex	2,5 2,5	2,5 4,0	3,5 4,5
5.	Coefficient of variation at linear density, %, not more for yarn 15,6 tex	2,0 3,0	3,0 5,0	3,5 6,0
6.	Twists number per 1 m of yarn, not more	30	30	30
7.	Mass share of spin finish, %	0,6±1,3	0,6±1,3	0,6±1,3
8.	Mass share of low-molecular substances (LMS), %, not more	3,8	3,8	3,8
9.	Linear shrinkage of yarn, %, not more	16,0±1,5	16,0±1,5	16,0(+2,5;-1,5)
10.	Filaments number in complex yarn (3,3 tex - 6;8, 5 and 6,7 tex - 12;14, 10 and 15,6 tex - 24;28)
11.	Yarn winding is on ISO-ІІ, ISO-І, BP-340 or cops-305 (KV-150-I4) with the mass from 600 till 2600 g.

Physico-mechanical indexes of complex polyamide yarn
№	Index name	Norm for yarn
		Complex				Monofilament
		Sort B		Sort А		Sort B		Sort А
		3,3; 6,7; 5 tex		15,6 tex		1,67; 2,2 tex		2,2 tex		3,3 tex
		Highest quality	1^st quality	Highest quality	1^st quality	Highest quality	1^st quality	Highest quality	1^st quality	Highest quality	1^st quality
1.	Specific (relative) tearing force, cN/tex, not less	39,2	39,2	37,3	36,3	44,1	44,1	44,1	41,2	44,1	41,2
2.	Relative lengthening at break, %	31,0±3,0		36,0±5,0		29,0±3,0		37,0±4,0		40,0±5,0
3.	Coefficient of variation at lengthening, %, not more	13,0	14,0	15,0	15,0	13,0	14,0	16,0	18,0	16,0	19,0
4.	Relative deviation of conditioned linear density from nominal one, %	±2,5		±2,5	±3,5	±2,5		±2,5	±3,0	±2,5	±3,0
5.	Coefficient of variation at linear density measured on specific yarn parts with the length 1 m, %, not more	2,5	3,0	-	-	3,0	3,5	3,0	3,5	3,5	3,8
	100 m of curls, %, not more	-	-	3,0	3,5	-	-	-	-	-	-
	Twists number per 1 m of yarn	200±10 300±20		100±15		-	-	-	-	-	-
6.	Winding density, g/cm³ for 1,67 tex	0,74±0,10 -		0,74±0,10 -		0,74±0,10 0,60±0,10		0,74±0,10 -		0,74±0,10 -
7.	Mass share of spin finish, %: in bobbins in cops	3,0±1,0 -		2,0±1,0 -		2,0±1,0 -		2,0±1,0 1,2±0,8		2,0±1,0 1,5±1,0
8.	Linear shrinkage of yarn, %	not more 7,0		14,5±1,5		not more 7,0		14,5±1,0		15,0±2,0
9.	Mass share of low-molecular substances(LMS), %, not more for yarn, produced on home spinning machines	-	-	-	-	-	-	-	-	3,8