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GB/T 31900-2015

Chinese Standard: 'GB/T 31900-2015'
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Standard ID GB/T 31900-2015 (GB/T31900-2015)
Description (Translated English) Woven children"s clothing
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Y76
Classification of International Standard 61.02
Word Count Estimation 17,141
Date of Issue 2015-09-11
Date of Implementation 2016-04-01
Quoted Standard GB/T 250; GB/T 251; GB/T 1335.1; GB/T 1335.2; GB/T 1335.3; GB/T 3917.2; GB/T 3921-2008; GB/T 4841.3; GB 5296.4; GB/T 8629-2001; GB/T 8630; GB/T 18132; GB 18401; GB/T 21294; GB/T 21295; GB/T 22702; GB/T 22705; GB/T 29862; GB/T 31907; FZ/T 80002; FZ/T 80004; FZ/T 80007.3
Drafting Organization Shanghai Garment Institute
Administrative Organization National Clothing Standardization Technical Committee
Regulation (derived from) National Standard Announcement 2015 No.25
Summary This Standard specifies the woven children's clothing requirements, test methods, test classification rules and signs, packaging, transportation and storage, and all other technical characteristics. This Standard applies to textile woven fabric as the main fabric production of children's clothing. This Standard does not apply to the age of 36 months and less infant clothing.

GB/T 31900-2015
ICS 61.020
Y 76
Woven children’s clothing
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of China.
Table of contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Requirements ... 5 
4 Inspection methods ... 14 
5 Test classification rules ... 18 
6 Marking, packaging, transportation and storage ... 25 
This standard was drafted in accordance with the rules given in GB/T
This standard was proposed by the China Textile Industry Federation.
This standard shall be under the jurisdiction of the National Garment
Standardization Technical Committee (SAC/TC 219).
The drafting organizations of this standard. Shanghai Garment Research
Institute, National Garment Quality Supervision and Inspection Center
(Shanghai), Zhejiang Red Yellow Blue Clothing Co., Ltd., Quanzhou Jazz
Rabbit Clothing Co., Ltd, Fujian Wild Leopard Children's Products Limited.
The main drafters of this standard. Shi Qin, Xu Jian, Ye Xiandong, Xu Youjiang,
Cai Dongsheng, Zhou Shuangxi, Yang Xiuyue.
Woven children’s clothing
1 Scope
This standard specifies the requirements, inspection methods, inspection
classification rules, marking, packaging, transport and storage, and other
technical characteristics of the woven children's clothing.
This standard applies to the children's clothing using the textile fabrics as the
main fabric.
This standard does not apply to infants and young children under the age of 36
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) are applicable to this Standard.
GB/T 250 Textiles - Tests for color fastness - Grey scale for assessing
change in color
GB/T 251 Textiles - Tests for color fastness - Grey scale for assessing
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 4841.3 Color cards of standard depths for dyeing with dyestuffs 2/1,
1/3, 1/6, 1/12, 1/25
GB 5296.4 Instructions for use of products of consumer interest - Part 4.
Textiles and apparel
GB/T 8629-2001 Textiles - Domestic washing and drying procedures for
textile testing
GB/T 8630 Textiles - Determination of dimensional change in washing and
GB/T 18132 Silk garments
GB 18401 National general safety technical code for textile products
GB/T 21294 Testing methods of physical and chemical performance of
GB/T 21295 Requirements for physical and chemical performance of
GB/T 22702 Standard safety size for drawstrings on children’s upper wear
GB/T 22705 Safety specifications for cords and drawstrings on children’s
GB/T 29862 Textiles - Identification of fiber content
GB/T 31907 Method of garment measurement
FZ/T 80002 Marking, packaging, transportation and storage of garments
FZ/T 80004 Rule for garments delivery inspection
FZ/T 80007.3 Dry wash resistance test methods for garments used
adhesive interlining
3 Requirements
3.1 Instructions for use
Instructions for use are as specified in GB 5296.4.
3.2 Type specifications
3.2.1 Type is set in accordance with GB/T 1335.
2.2.2 The specification of main parts of the finished product shall be designed
in accordance with the relevant requirements of GB/T 1335.
3.3 Raw materials
shall be free from skewing, AND the lock hole thread mark shall be beautiful,
neat, flat, and smooth.
3.9.11 The nail catcher shall be firm, the button foot shall be appropriate in
height, AND the thread knot shall be not exposed. The nail catcher shall not be
fixed onto the single layer cloth (except for the decorative button); the foot
wrapping height is compatible with the button hole thickness, it is wrapped for
over three times (the decorative button is not wrapped), AND the thread ending
knot shall be strong and complete.
3.9.12 The button and button hole shall be aligned in vertical direction. The
snap button shall be secure, aligned vertically, appropriate in engagement,
AND free from deformation or over-tightness.
3.9.13 The attach band zippers shall be flat and smooth, AND consistent in
height at left side and right side.
3.9.14 The trademarks and durability labels shall be accurate, clear and
3.9.15 The symmetrical parts shall be basically the same.
3.9.16 It is not allowed for the collar parts to use jumping needle. Within 30 cm
of other parts, it is not allowed for continuous jumping needle OR more than
two locations of the single jumping needle. It is not allowed for the chain type
thread mark to use jumping needle.
3.9.17 The decorations (embroidery, insert, etc.) shall be firm, flat and smooth.
3.9.18 The side seam of the trousers (skirt) shall be smooth and straight; the
twisting rate of trousers shall be not more than 2%; the twisting rate of tube
skirt products shall be not more than 3%; AND there is no requirement for
3.9.19 The trousers back crotch seam shall be stitched with double threads or
chain type threads.
3.10 Specifications allowable deviation
The specification allowable deviation of the main parts of the finished product
is as specified in Table 4.
Table 4 unit in centimeters
Name of the part Allowable deviation
Upper wear length ± 1.0
Bust ± 1.5
Collar size ± 0.6
fastness will not be used to assess the products which cannot be dry washed
as specified in the instruction. AND the water washing mutual staining by
splicing is only used to assess the product with splicing between deep color
and light color.
3.12.4 In the size change rate, the collar size is only used to assess the closed
collar. The waistline is not used to assess the elastic waist; AND the fold
treatment and zonal elastic products will not be subjected to the transverse
size change rate.
3.12.5 The adhesive interlining peeling strength is only used to assess the
color and body of the upper wear, the composite or coated fabric peeling will
not be assessed, AND the non-woven fabric adhesive interlining will not be
subjected to the assessment of this item if it cannot be peeled in the test.
3.12.6 The allowable color fastness degree of the fabrics with silk fiber content
≥ 50% shall follow the requirements of GB/T 18132.
3.12.7 It is allowed for the qualified product assessment indicator of the wet
rubbing color fastness of the raised and flocking fabric as well as deep color
fabric to be lowered for half level as compared with those specified in this
3.12.8 The allowable cracking degree indicator of each square meter of mass
fabric at a level of 52 g/m2 and below shall follow the requirements of GB/T
18132. The seaming requirements shall comply with the requirements of this
standard. The outer layer which is only used for decoration purposes shall not
be subjected to seaming performance assessment.
3.12.9 The raised fabric will not be subjected to pilling assessment.
4 Inspection methods
4.1 Inspection tool
4.1.1 Steel tape or ruler, in the scale value of 1 mm.
4.1.2 Grey scale used for color change assessment of the textile color fastness
test (GB/T 250).
4.1.3 Grey scale used for staining assessment of the textile color fastness test
(GB/T 251).
4.1.4 1/12 Color card of standard depth for dying with dyestuffs (GB/T 4841.3).
fiber ≥ 50%); it is dried by hanging in natural air; three finished products shall
be randomly taken from the batch for test, AND the mean value of the three
products will be used.
4.4.2 The size change rate of the finished product after dry washing shall be
tested in accordance with FZ/T 80007.3; the conventional dry washing method
is used; three finished products shall be randomly taken from......
Related standard:   GB/T 22703-2019  GB/T 24278-2019
Related PDF sample:   GB/T 35270-2017
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