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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 2666-2009 Trousers; the main changes have been made with respect to GB/T 2666-2009:
——the application scope of this standard is modified, and the requirement of not applicable to products for infants is added (see Chapter 1; Chapter 1 in 2009 edition);
——normative references are supplemented and modified (see Chapter 2; Chapter 2 in 2009 edition);
——the requirements of instructions for use are modified (see 3.1; 3.1 in 2009 edition);
——the requirements of accessory materials are modified (see 3.3.3; 3.3.3 in 2009 edition);
——the requirements of warp and weft yarn are modified (see 3.4; 3.4 in 2009 edition);
——the requirements of strip and plaid pattern skewness are added (see 3.5.1);
——the requirements of strip and plaid matching are modified (see 3.5.2; 3.5.1 in 2009 edition);
——the appearance quality requirements are incorporated into sewing requirements, and are supplemented and modified (see 3.9; 3.9 and 3.11 in 2009 edition);
——the requirements of stitch density are modified (see 3.9.1; 3.9.1 in 2009 edition);
——the requirement of no bubbling in the part covered with adhesive interlining is supplemented (see 3.11; 3.12 in 2009 edition);
——the assessment requirements for safety performance of children's garments are added (see 3.12);
——the requirements for appearance after washing are added and those for color fastness to dry rubbing of lining are modified; the item "stitch slipping" is changed to "seam performance" (see 3.12; 3.13 in 2009 edition);
——the requirements of footnotes in Table 6 are modified and supplemented (see footnotes a, b and c in 3.12; notes 1 and 2 in 2009 edition);
——inspection tools are modified (see 4.1; 4.1 in 2009 edition);
——the requirements of specification determination are modified, and GB/T 31907 Method of Garment Measurement is directly quoted (see 4.2; 4.2 in 2009 edition);
——the requirements of appearance determination are modified and supplemented (see 4.3; 4.3 in 2009 edition);
——the test method for yarn direction skewness is supplemented while that for weft skewness is deleted (see 4.3.2; 4.3.4 in 2009 edition);
——the test method for safety performance of children's garments is added (see 4.4.1);
——the test method for dimensional change rate after water washing is modified, and "washing procedure imitating hand washing is adopted where hand washing is indicated" is added; the test method for dimensional change rate in dry cleaning is modified, and dedicate dry cleaning method is defined (see 4.4.2; 4.4.1 and 4.4.2 in 2009 edition);
——the test method for color fastness to light is modified (see 4.4.6; 4.4.8 in 2009 edition);
——the test method for appearance quality after washing is added (see 4.4.9);
——the test method for point and edge sharpness of accessories is added (see 4.4.10);
——the testing methods of physical and chemical performance of garments are quoted, specifying "single-fiber lining shall be selected for the arbitration test on color fastness to dry, cleaning, soaping, perspiration and water" (see 4.4.11);
——type inspection opportunity is added (see 5.1.1);
——the judgment basis for appearance quality defect is modified (see 5.2.3; 5.2.2 in 2009 edition);
——re-inspection requirements are modified (see 5.4.4; 5.4.4 in 2009 edition);
——Annex B is deleted, and the seam slippage test method complies with the requirements of GB/T 21294 (see 4.4.11; 4.4.10 in 2009 edition);
——Annex C is deleted, and the schematic diagram for test sampling position for back crotch seam strength complies with the requirements of GB/T 21294 (see 4.4.11; 4.4.11 in 2009 edition).
This standard was proposed by China National Textile and Apparel Council.
This standard is under the jurisdiction of National Technical Committee on Garments of Standardization Administration of China (SAC/TC 219).
The previous editions replaced by this standard are as follows:
——GB/T 2666-1993, GB/T 2666-2001 and GB/T 2666-2009.
Trousers
1 Scope
This standard specifies the requirements, inspection methods, inspection rules, and marking, packaging, transportation and storage of trousers and skirts.
This standard is applicable to trousers and skirts and other woolen garments produced with pure wool, wool blended and interwoven fabric, wool-like fabric and other woven fabric as the main fabric.
This standard is not applicable to garments for infants aged 36 months and below.
2 Normative References
The following documents for the application of this document are essential. Any dated reference, just dated edition applies to this document. For undated references, the latest edition (including any amendments) applies to this document.
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 3917.2 Textiles - Tear Properties of Fabrics - Part 2: Determination of Tear Force of Trouser-shaped Test Specimens (Single Tear Method)
GB/T 3921-2008 Textiles - Tests for Color Fastness - Color Fastness to Washing with Soap or Soap and Soda
GB/T 4802.1 Textiles - Determination of Fabric Propensity to Surface Fuzzing and to Pilling - Part 1: Circular Locus Method
GB/T 4841.3 Color Cards 2/1, 1/3, 1/6, 1/12 and 1/25 of Standard Depths for Dyeing with Dyestuffs
GB/T 5296.4 Instructions for Use of Products of Consumer Interest - Part 4: Textiles and Apparel
GB/T 5711 Textiles - Tests for Color Fastness - Color Fastness to Drycleaning Using Perchloroethylene Solvent
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 8630 Textiles-Determination of Dimensional Change in Washing and Drying
GB/T 14304 Sizes for Woolen Suits
GB/T 14801 Test Method for Skewness and Bow in Woven and Knitted Fabrics
GB 18401 National General Safety Technical Code for Textile Products
GB/T 21294 Testing Methods of Physical and Chemical Performance of Garments
GB/T 21295-2014 Requirements of Physical and Chemical Performance of Garments
GB/T 29862 Textiles - Identification of Fiber Content
GB 31701 Safety Technical Code for Infants and Children Textile Products
GB/T 31702 Testing Method for Sharpness of Attached Components on Textile Products
GB/T 31907 Method of Garment Measurement
FZ/T 80002 Marking, Packaging, Transportation and Storage for Garments
FZ/T 80004 Rule for Garments Delivery Inspection
FZ/T 80007.3 Dry Wash Resistance Test Method for Garments used Adhesive Interlining
GSB 16-2921-2012 Standard Sample Photos of Woolen Fabrics Pilling
GSB 16-2924-2012 Standard Sample Photos of Worsted Fabrics (Plain Surface) Pilling
GSB 16-2925-2012 Standard Sample Photos of Worsted Fabrics (Raised Surface) Pilling
Sample Photos of Surface Defects of Woolen Garments
3 Requirements
3.1 Instructions for use
Instructions for use shall be in accordance with those specified in GB/T 5296.4 and GB 31701.
3.2 Size specifications
3.2.1 Size designations shall be in accordance with those specified in GB/T 1335.
3.2.2 The specifications of main parts shall be designed independently in accordance with the relevant requirements of GB/T 1335 and GB/T 14304.
3.3 Raw materials
3.3.1 Fabric
Fabric adopted shall meet the relevant quality requirements of this standard.
3.3.2 Lining
Lining adopted shall be suitable to the fabric adopted and meet the relevant quality requirements of this standard.
3.3.3 Accessory materials
3.3.3.1 Interlining, border lace and pocket bag
The interlining, border lace and pocket bag adopted shall be suitable to the performance of the fabric and lining adopted, and their quality shall meet relevant requirements of this standard.
3.3.3.2 Stitch thread, drawstrings and cords, elastic ribbon
The stitch thread, drawstrings and cords, and elastic ribbon (except ornamental thread and tape) adopted shall be suitable to the performance of the fabric, lining and accessory materials adopted.
3.3.3.3 Button, zipper and other accessories
Button (excluding ornamental button), zipper and other accessories adopted shall be suitable to the fabric adopted. The surfaces of button, ornamental button, zipper and other accessories shall be smooth and free from burr, damage, defects and accessible sharp tip or edge. Zippers shall be good in meshing and operate smoothly. The top fly zipper for boys aged 14 years and below shall be attached with lining pad (facing).
Note: accessible sharp tip or edge refers to the sharp tip and edge on finished product that may hurt human skin under normal wearing.
3.4 Warp and weft yarn
The warp and weft yarn of fabric shall be in accordance with those specified in Table 1.
Table 1 cm
Part name Yarn direction requirement
Front Warp yarn shall be subject to creas press, the skewness below thigh line is not greater than 0.5 and that of yarn-dyed strip and plaid material is not greater than 0.2
Back Warp yarn shall be subject to creas press, the skewness below thigh line is not greater than 1.0 and that of yarn-dyed strip and plaid material is not greater than 0.5
3.5 Strip and plaid matching
3.5.1 The skewness of strip and plaid pattern shall not be greater than 2% (except in special design).
3.5.2 Fabric with visible stripes and plaids in width of 1.0cm or above shall be in accordance with those specified in Table 2.
Table 2 In cm
Part Part requirements
Side seam For the part below crotch, plaids shall match each other horizontally, with mutual deviation not greater than 0.2
Front/back crotch seam Plaids shall match each other horizontally, with mutual deviation not greater than 0.3
Pocket flap and body piece Strips shall match each other, and plaids shall match each other, with mutual deviation not greater than 0.2
Notes:
1 The strips and plaids cycling by color shall match each other per the color cycle.
2 Special design is beyond such limitation.
3.5.3 As for the fabric going down or up and the checkerboard fabric, the forward direction shall be consistent on the whole garment.
3.6 Stitching
Only one stitched part is allowable for waistband cover and lining. The stitched seam is at the back seam for men's trousers while at the back (side) seam for women's trousers (skirts) (except arc-shaped waist). Special design is excluded.
3.7 Color difference
3.7.1 The color difference between the inside seam, waistband and the body piece is not lower than Grade 4 while that of other surface parts is higher than Grade 4.
3.7.2 The color difference between bottoms and tops in suits is not lower than Grade 4, while that of different strips of the same batch is not lower than Grade 4.
3.8 Appearance defect
The permissibility of defect at each part of the finished product shall be in accordance with those specified in Table 3, and see Figure 1 for the division of each part of the finished product. Only one kind of defect within the permissibility shall be available in each part, and the defects not listed in this standard may, according to their patterns, refer to the requirements of similar defects in Table 3.
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Table 3
Defect name Permissibility of each part
Part 1 Part 2 Part 3
Yarn defect Not permissible Slight defect: with total length less than 1.0cm or total area less than 0.3cm2; visible defect: not permissible Slight defect: with total length less than 1.5cm or total area less than 0.5cm2; visible defect: not permissible
Neps (pcs) 1 3 5
Striation and crease Not permissible Slight defect: with total length less than 1.5cm or total area less than 1.0cm2; visible defect: not permissible Slight defect: with total length less than 2.0cm or total area less than 1.5cm2; visible defect: not permissible
Spots (oil stain, rust stain, color stain, water stain, chalk mark, etc.) Not permissible Slight defect: with total area less than 0.3cm2; visible defect: not permissible Slight defect: with total area less than 0.5cm2; visible defect: not permissible
Hole, abrasion and float loop Not permissible Not permissible Not permissible
Note: description of defect degree:
Slight defect - the defect which are invisible intuitively but recognizable if observed carefully.
Visible defect - the defect noticable but not affecting the overall effect.
Figure 1
3.9 Sewing
3.9.1 Stitch density shall be in accordance with those specified in Table 4, except in special design.
Foreword i
1 Scope
2 Normative References
3 Requirements
4 Inspection Methods
5 Inspection Rules
6 Marking, Packaging, Transportation and Storage
Annex A (Informative) Test Method of Spirality After Washing
