1 Scope
This standard specifies the specification and size designation, requirements, test methods, judgment rules, marking, packaging, transportation and storage for the knitted homewear.
This standard is applicable to identify the quality of knitted homewear mainly made of knitted shell fabric. Homewear includes the products mainly for wearing at home such as nightclothes and home sportswear.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to 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 1335 (all parts) Size designation of clothes
GB/T 2910 Textile--Binary fiber mixtures--Quantitative chemical analysis (GB/T 2910-1997, eqv ISO 1833: 1977)
GB/T 2911 Textiles--Ternary fiber mixtures--Quantitative analysis (GB/T 2911-1997, eqv ISO 5088: 1976)
GB/T 2912.1 Textiles--Determination of Formaldehyde -- Part 1: Free and Hydrolyzed Formaldehyde (Water Extraction Method)
GB/T 3920 Textiles-Tests for colour fastness-Colour fastness to rubbing (GB/T 3920—1997, eqv ISO 105-X12: 1993)
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 4802.1 Textiles-Assessing the rate of pilling of fabrics-Circular locus 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 6411 A series of size of knitted underwear
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 8629 Textiles-Domestic washing and drying procedures for textile testing (GB/T 8629-2001, eqv ISO 6330: 2000)
GB/T 8878 Cotton knitted underwear
GB/T 14801 Test method for skewness and bow in woven and knitted fabrics
GB/T 17592 Textiles - Determination of the banned azo colourants
GB 18401 National General Safety Technical Code for Textile Products
GB/T 19976 Textiles-Determination of bursting strength-Steel ball method
FZ/T 01053 Textiles-Identification of fiber content
FZ/T 01057(all parts) Test method for identification of textile fibers
FZ/T 01095 Textile--Test method of elastane fiber content
FZ/T 43004 Silk weft knitted fabrics
GSB 16-1523-2002 Knitted fabric fuzzing and pilling sample photograph
3 Specification and Model
Size designation of knitted homewear shall be implemented according to the requirements of GB/T 6411 or GB/T 1335 (all parts).
4 Requirements
4.1 Requirement contents
The requirements are divided into inherent quality and appearance quality. Inherent quality includes marble bursting strength, fiber content and deviation, formaldehyde content, pH value, water-washing dimensional change ratio, distortion ratio after water washing, colour fastness to washing, colour fastness to water, colour fastness to perspiration, colour fastness to rubbing, colour fastness to washing of textile printing, colour fastness to rubbing of textile printing, pilling, peculiar smell and detachable aromatic amine dyes. Appearance quality includes surface defect, specification and size deviation, self size difference, sewing requirements and appearance quality after water washing.
4.2 Grading requirements
4.2.1 Quality grade of knitted homewear was divided into the superior quality product, first-grade product and qualified product.
4.2.2 The quality grading of knitted homewear: inherent quality shall be graded by lot (delivery lot), and appearance quality shall be graded by piece; as for combination of inherent quality and appearance quality, the knitted homewear shall be graded according to the minimum grade.
