1 Scope
Product classification, product specification, requirements, test methods, determination rules, marking, packaging, transportation and storage of knitted workmanship sweater are specified in this standard.
This standard is applicable to evaluate the quality of the knitted workmanship sweaters which are in pure and blend spinning or interleaving with cotton, hemp, silk and chemical fiber (including processing with knitting machine, hand knitting and knitted fabric cutting)
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to (excluding amending error in the text), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of the normative document is applicable. For undated references, the latest edition of the normative document applies.
GB 250 Gray scale for assessing change in colour (GB 250-1995, idt ISO 105-A02:1993)
GB 251 Gray scale for assessing staining (GB 251-1995, idt ISO 105-A03:1993)
GB/T 2910 Textile - Binary fibre mixtures - Quantitative chemical analysis (GB/T 2910—1997, eqv ISO 1833:1977)
GB/T 2911 Textile - Binary fibre mixtures - Quantitative chemical analysis (GB/T 2911—1997, eqv ISO 5088:1976)
GB/T 2912.1 Textiles - Determination of Formaldehyde - Part 1: Free and Hydrolized Formaldehyde (Water Extraction Method)
GB/T 3920 Textiles - Tests for colour fastness - Colour fastness to rubbing
GB/T 3921.1 Textiles - Tests for colour fastness - Colour fastness to washing: Test 1(GB/T 3921.1-1997, eqv ISO 105-C01:1989)
GB/T 3922 Textiles - Testing method for colour fastness to perspiration (GB/T 3922—1995, eqv ISO 105-E04:1994)
GB/T 4802.3 Textiles - Assessing the rate of pilling of fabrics - Pilling box method
GB/T 4856 Package of cotton goods and knitwear
GB 5296.4 Instructions for use of products of consumer interest - Instructions for use of textiles and apparel
GB/T 5713 Textiles - Tests for colour fastness-Colour fastness to water(GB/T 5713—1997, eqv ISO 105-E01:1994)
GB/T 7573 Textiles - Determination of pH of the aqueous extract(GB/T 7573-2002, ISO 3071:1980, MOD)
GB/T 8170 Rules for Rounding off of Numerical Values
GB/T 8427 Textiles - Tests for colour fastness Colour fastness to artificial light: Xenon arc fading lamp test
GB/T 8629 Textiles - Domestic washing and drying procedures for textile testing
GB/T 8878 Cotton knitted underwear
GB/T 17592 Textiles - Determination of the banned azo colourants
GB 18401 National General Safety Technical Code for Textile Products
FZ/T 01026 Quaternary fibre mixtures - Quantitative chemical analysis
FZ/T 01053 Textiles-Identification of fiber content
FZ/T 01057 (all parts) Test method for identification of textile fibres
FZ/T 01095 Textile - Test method of elastane fibre content
3 Product Classification
Knitted workmanship sweater may be classified into plain knitted fabric, hollow jacquard fabric, plaited fabric and loose structure fabric by knitting structure.
4 Product Specification
4.1 Specification of knitted workmanship sweater: mark the chest girth of human body in centimeter (cm).
4.2 The specification of knitted workmanship sweater added with elastic fiber or ones in special design: marking the applicable wearing scope of chest girth, such as 95~105, which means it is suitable for the people whose chest girth is 95cm ~105 cm.
5 Requirements
5.1 Requirement content
The requirements are divided into inherent quality and appearance quality. Inherent quality includes the requirements of fibre content, formaldehyde content, pH value, peculiar smell, detatchable aromatic amine dyes, pilling, water-washing dimensional change ratio, colour fastness to washing, colour fastness to water, colour fastness to perspiration, colour fastness to rubbing and colour fastness etc. Appearance quality covers indexes the requirements of surface defect, stitch elongation, neckline undrawing size, size deviation, self size difference etc.
