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This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 22853-2009 Knitted sportwear and the following main technical changes have been made with respect to GB/T 22853-2009:
——"This standard is not applicable to garments for infants aged 36 months and below” is added (see Clause 1);
——The normative references GB/T 6529, GB/T 21655.1-2008, GB/T 29862, GB/T 31127-2014, GB 31701 and FZ/T 01101 are added (see Clause 2);
——The year number of GB/T 8629 is modified (see Clause 2; Clause 2 of the Edition 2009);
——The normative references GB/T 251, GB/T 2911, GB/T 8878 and FZ/T 01053 are deleted (see Clause 2; Clause 2 of the Edition 2009);
——The terms “fluorescence color” and “children garment” are added (see Clause 3);
——The test items including wet rubbing (for children garment) in color fastness to rubbing, moisture absorption and quick-drying performance and appearance after washing are added in Table 1 (see Clause 5; Clause 4 of the Edition 2009);
——The color fastness test requirements for fabric and lining are modified (see Clause 5; Clause 4 of the Edition 2009);
——The test items including color fastness of printing (pyrography) to soaping and color fastness of printing (pyrography) to rubbing are deleted (Clause 4 of the Edition 2009);
——The requirements for color fastness to light, color fastness to light of textiles wetted with artificial perspiration, and bursting strength in Table 1 are modified (see Clause 5; Clause 4 of the Edition 2009);
——The subclause “5.3.2 Children garment shall also meet the relevant requirements of GB 31701” is added (see Clause 5);
——The subclause “5.3.3 The natural-color and bleached products are not assessed for the color fastness to soaping, color fastness to rubbing, color fastness to perspiration and color fastness to water” is added (see Clause 5);
——The subclause “5.3.11 Only the garments indicated with such functions are assessed for the absorption and quick-drying performance” is added (see Clause 5);
——“Table 2 Surface defect grading requirements” is modified (see Clause 5; Clause 4 of the Edition 2009);
——The original Table 4 and Table 5 are adjusted to Table 3 and Table 4 respectively, and the assessment items and requirements are modified (see Clause 5; Clause 4 of the Edition 2009);
——The sewing regulations are modified (see Clause 5; Clause 4 of the Edition 2009);
——The test methods for absorption and quick-drying performance and appearance after washing are added (see Clause 6);
——The example and requirements for measuring parts of skirts are added (see Clause 6);
——Judgment rules for inherent quality in 7.1 are modified (see Clause 7; Clause 7 of the Edition 2009);
——“7.3 Single-piece judgment” and “7.4 Other judgment rules” are added (see Clause 7);
——The requirements for product instructions in 8.1 are modified (see Clause 8; 7.1 of the Edition 2009).
This standard was proposed by China National Textile and Apparel Council.
This standard is under the jurisdiction of the National Technical Committee on Textiles of Standardization Administration of China (SAC/TC 209).
The previous edition of this standard is as follows:
——GB/T 22853-2009.
Knitted sportwears
1 Scope
This standard specifies the terms and definitions, product size designation, requirements, tests, judgment rules, product instructions, packaging, transportation and storage of knitted sportwears.
This standard is applicable to the quality appraisal of sportwears mainly made of knitted fabrics.
This standard is not applicable to garments for infants aged 36 months and below.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the normative document (including any amendments) applies.
GB/T 250 Textiles - Tests for color fastness - Grey scale for assessing change in color
GB/T 1335 (all parts) Standard sizing systems for garments
GB/T 2910 (all parts) Textiles - Quantitative chemical analysis
GB/T 2912.1 Textiles - Determination of formaldehyde - Part 1: Free and hydrolyzed formaldehyde (water extraction method)
GB/T 3920 Textiles - Tests for color fastness - Color fastness to rubbing
GB/T 3921-2008 Textiles - Tests for color fastness - Color fastness to washing with soap or soap and soda
GB/T 3922 Textiles - Tests for color fastness - Color fastness to perspiration
GB/T 4802.1-2008 Textiles - Determination of fabric propensity to surface fuzzing and to pilling - Part 1: Circular locus method
GB/T 4856 Package of cotton goods and knitwear
GB/T 5296.4 Instructions for use of products of consumer interest - Part 4: Textiles and apparel
GB/T 5713 Textiles - Tests for color fastness - Color fastness to water
GB/T 6411 A series of size of knitted underwear
GB/T 6529 Textiles - Standard atmospheres for conditioning and testing
GB/T 7573 Textiles - Determination of pH of aqueous extract
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
GB/T 8427-2008 Textiles - Tests for color fastness - color fastness to artificial light: Xenon arc fading lamp test
GB/T 8629-2017 Textiles - Domestic washing and drying procedures for textile testing
GB/T 14576 Textiles - Tests for color fastness - Color fastness to light of textiles wetted with artificial perspiration
GB/T 14801 Test method for skewness and bow in woven and knitted fabrics
GB/T 17592 Textiles - Determination of the banned azo colorants
GB 18401 National general safety technical code for textile products
GB/T 19976-2005 Textiles - Determination of bursting strength - Steel ball method
GB/T 21655.1-2008 Textiles - Evaluation of absorption and quick-drying - Part 1: Method for combination tests
GB/T 29862 Textiles - Identification of fiber content
GB/T 31127-2014 Textiles - Tests for color fastness - Color fastness to transfer in joints
GB 31701 Safety technical code for infants and children textile products
FZ/T 01026 Textiles - Quantitative chemical analysis - Mulitinary fibre mixtures
FZ/T 01031 Knitted fabric and elastic woven fabric - Determination of maximum force to seam rupture and elongation - Grab method
FZ/T 01057 (all parts) Test method for identification of textile fibers
FZ/T 01095 Textile - Test method of elastane fibre content
FZ/T 01101 Textile test method - Fiber content - Quantitative physical analysis
GSB 16-1523 Knitted fabric fuzzing and pilling sample photograph
GSB 16-2159 Knitwear standard depth scale (1/12)
GSB 16-2500 Color sample photos of surface defect on knitted fabrics
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
fluorescence color
the color showing fluorescence after exposure to UV light
3.2
children garment
garment for children over 3 through 14 years old
4 Product size designation
It shall be in accordance with those specified in GB/T 1335 or GB/T 6411.
5 Requirements
5.1 Specific requirements
The requirements involve inherent quality and appearance quality. Inherent quality includes fiber content, formaldehyde content, pH value, peculiar smell, decomposable carcinogenic aromatic amine dyes, color fastness (color fastness to soaping, color fastness to rubbing, color fastness to perspiration, color fastness to water, color fastness to light, color fastness to light of textiles wetted with artificial perspiration, and color fastness to transfer in joints), back crotch seam strength, bursting strength, pilling, dimensional stability to washing, distortion rate after water washing, absorption and quick-drying performance, and appearance after washing. Appearance quality includes such indexes as surface defect, specification and dimension deviation, dimensional difference in symmetric parts and sewing requirements.
5.2 Grading requirements
5.2.1 The products are classified into superior products, first-grade products and acceptable products in terms of the quality grade.
5.2.2 The products are graded by batches in terms of inherent quality and by pieces in terms of appearance quality, and shall take the lowest grade in case of a combination of both.
5.2.3 For all inherent quality indexes, the worst inspection result is regarded as the grading basis for this batch of products.
5.2.4 Where appearance quality problems of different product grades are found on the same product, the product shall be graded according to the lowest quality grade. For one product, no more than two limit surface defects of the same grade are allowed to exist; otherwise, this product shall be degraded by one grade.
5.3 Inherent quality requirements
5.3.1 See Table 1 for the inherent quality requirements.
Foreword II
1 Scope
3 Terms and definitions
4 Product size designation
5 Requirements
6 Tests
7 Judgment rules
8 Product instructions, packaging, transportation and storage
Annex A (Normative) Measuring parts of trousers for back crotch seam strength test
