QB/T 4546-2021 (QB/T4546-2021, QBT 4546-2021, QBT4546-2021) & related versions
QB/T 4546-2021 Chinese.Children's leather sandals
QB/T 4546-2021 English. Children's leather sandals
Preface
This document is based on the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Grass.
This document replaces QB/T 4546-2013 "Children's leather sandals". Compared with QB/T 4546-2013, except for structural adjustments and editorial changes,
In addition, the main technical changes are as follows.
a) Changed the “Scope” (see Chapter 1, Chapter 1 of the.2013 edition);
b) The “Normative References” have been changed (see Chapter 2, Chapter 2 of the.2013 Edition);
c) The definitions of “infant leather sandals” and “children leather sandals” have been changed (see 3.1 and 3.2 of the.2013 version);
d) Changed “General requirements” (see 5.1, 5.1 of the.2013 edition);
e) Changed the “sensory quality” requirements (see Table 1, Table 1 of the.2013 version);
f) The requirements and test methods for “odor” and “total thickness of upper strap” have been deleted (see 5.3, 5.4, 6.2, and 6.3 of the.2013 edition);
g) The requirements for “folding resistance” and “upper-sole peeling strength” have been changed (see 5.3.1, 5.3.3, 5.5.1, 5.5.3 of the.2013 edition);
h) Changed the requirements and test methods for “wear resistance” and “outsole hardness” (see 5.3.2, 5.3.4, 6.3, 6.5,.2013
Version 5.5.2, 5.5.4, 6.6, 6.8);
i) The requirements for “pull-out strength of the tie (or pull-out force of the tie)” have been changed (see 5.3.5, 5.5.5 of the.2013 edition).
Test method for "with pull-out force" (see 6.7, 6.10 of the.2013 edition);
j) Changed the requirements for “collusion” (see 5.3.8, 5.7.4 of the.2013 version);
k) Added the requirements and test methods for “yellowing resistance” (see 5.3.9 and 6.11);
l) Added the requirements and test methods for “bonding strength between outsole and outer midsole” (see 5.3.10 and 6.12);
m) Deleted the requirements for “limited substances” and “physical safety performance” (see 5.6 and 5.7 of the.2013 version) and the test methods (see
Version 6.13, 6.14, 6.15, 6.16, 6.17.1, 6.17.2);
n) Deleted “inspection classification”, “factory inspection”, “type inspection” and “inspection items” (see 7.1, 7.2,
7.3, 7.4);
o) Changed the “Judgment Rules” (see Chapter 7, 7.5 of the.2013 edition);
p) Changed the “Packaging, Transportation and Storage” requirements (see Chapter 8, Chapter 8 of the.2013 edition);
q) Deleted “Examples of some accessories classification” and “Tensile strength test of small accessories” (see Appendix A and Appendix B of the.2013 edition);
r) Added “After-sales quality assessment of children’s leather sandals” (see Appendix A).
This document was proposed by China Light Industry Federation.
This document is under the jurisdiction of the National Technical Committee for Standardization of Footwear, Leather Shoes Sub-Technical Committee (SAC/TC305/SC1).
This document was drafted by. Wenzhou Quality and Technology Testing Science Research Institute/National Footwear Quality Supervision and Inspection Center (Wenzhou), Zhejiang Red
Dragonfly Shoes Co., Ltd., Pujiang Tonghui Shoes Co., Ltd., Qibuli Co., Ltd., Shanghai Brother and Sister Cat Children's Products Co., Ltd.,
Huizhou Quality Metrology Supervision and Inspection Institute of Guangdong Province, Guangzhou Quality Supervision and Inspection Research Institute.
The main drafters of this document are. Wang Ning, Liu Qiang, Qian Fan, Xie Songfang, Xie Ping, Lü Zengqi, Su Hui, Huang Xiaogang, Miao Jie, Ye Zhengmao,
Zhao Zhenpu.
The previous versions of this document and the documents it replaces are as follows.
--First published in.2013 as QB/T 4546-2013;
--This is the first revision.
1 Scope
This document specifies the product classification, technical requirements, test methods, judgment rules, inspection rules and marking, packaging, transportation and storage of children's leather sandals.
This document applies to general-purpose infant and toddler leather sandals and children's leather sandals whose uppers (surfaces) are made of natural leather, artificial leather, synthetic leather, and textiles and are manufactured through various processes.
This document does not apply to infant and children's sandals with special features.
Infant and children's sandals with straps (surfaces) made of other materials can refer to this document for implementation.
Normative references
2 The contents of the following documents constitute the essential clauses of this document through normative references in this text. Among them, for referenced documents with dates, only the versions corresponding to the dates are applicable to this document; for referenced documents without dates, the latest versions (including all amendments) are applicable to this document.
The shoe size should not exceed 170, and they are generally leather sandals that can be worn by infants and young children aged 3 years and below.
4 Product Categories
4.1 Uppers are classified into natural leather (top leather, split leather), artificial leather, synthetic leather, textiles, mixed uppers, etc.
Infant and children's leather sandals.
4.2 According to the upper structure, they are divided into full-upper, open-upper and striped types of infant and children's leather sandals.
4.3 According to the target users, they are divided into children's leather sandals and infant leather sandals.
5 Requirements
5.1 General requirements
5.1.1 Product labeling should comply with the requirements of QB/T 2673.
5.1.2 For after-sales quality assessment, see Appendix A.
5.2 Sensory quality
The sensory quality requirements are shown in Table 1.Items 1 to 5 are major items, and items 6 to 9 are minor items.
5.3.3.1 Children's leather sandals that are sewn or glued or made by special processes (including riveting, etc.) are not subject to the upper and sole peeling strength test.
The peel strength of all children's leather sandals made in China was tested.
5.3.3.2 If any of the following situations occurs, the peel strength of the upper sole shall not be measured, and the pull-out strength of the upper tape (or the pull-out force of the upper tape) shall be measured instead.
a) Open-front and strappy leather sandals for children;
b) The thickness of the sole at the test location exceeds 25 mm;
c) The hardness of the outer sole is less than 50 Shore A or the shoe is slippery due to special reasons such as the sole being too soft or too thin;
d) Other situations that are not suitable for testing the peel strength of the upper and sole.
5.3.3.3 The peel strength of the upper and sole should not be less than 40 N/cm.
5.3.3.4 If the material tears during the upper and sole peel strength test but the peel layer does not open, the peel strength should not be less than 30 N/cm.
5.3.4 Outsole hardness
5.3.4.1 The hardness of the solid outsole shall be 45 Shore A to 65 Shore A. The hardness of the microcellular foam outsole shall be 45 Shore C to 65 Shore C.
The bottom should meet the hardness requirements of solid bottom and/or microporous foam bottom according to the type of material.
5.3.4.2 The outer sole hardness of natural leather outer soles and children's leather sandals with outer sole thickness less than 3 mm is not required to be tested.
5.3.5 Pull-out strength of tie (or pull-out force of tie)
The pull-out strength of the upper strap of children's leather sandals made by bonding process should not be less than 70 N/cm; if the material is torn but the upper and sole joints are not pulled apart, the upper strap should be pulled out by 70 N/cm.
The pull-out strength of the strap should not be less than 30 N/cm. The pull-out force of the upper strap of children's leather sandals made by non-adhesive technology (rivet studs, etc.) should not be less than 70 N.
5.3.6 Fiberboard flex index
The fiberboard flex index should not be less than 1.9.
5.3.7 Colour fastness to rubbing of lining and inner padding
The color fastness to friction of lining and inner padding should not be less than grade 3 (grey sample card).
5.3.8 Conspiracy
5.3.8.1 Children's leather sandals with a shoe size of.200 or above, a heel height of 20 mm or above and a heel opening height of 8 mm or above shall have a shank or other rigid
The length, longitudinal stiffness, hardness and bending performance of the shank should meet the requirements of GB/T 28011.
5.3.8.2 No requirements are imposed on the shank of children's leather sandals with injection molded midsoles. The longitudinal stiffness of injection molded midsoles shall comply with the requirements of QB/T 4862.
5.3.9 Yellowing resistance
The yellowing resistance of the upper and sole edge (non-ground contact part) of children's leather sandals should not be less than level 3.White or light-colored upper and
The edge of the sole (the part not in contact with the ground) is tested for yellowing resistance, and the rest is exempt from testing.
5.3.10 Bonding strength between outsole and midsole
The bonding strength between the outsole and the outer midsole should not be less than 20 N/cm, and should not be less than 15 N/cm when the microporous sole is torn but the rubber layer does not open.
6 Test methods
6.1 Sensory quality
6.9 Colour fastness to rubbing of lining and inner padding
According to method A in QB/T 2882-2007, rub the shoe with artificial sweat 50 times for testing. If there is no lining, the contact surface between the upper and the foot
When it is impossible to take samples of the lining and inner pad, materials from the same batch can be tested.
6.10 Intrigue
Test according to GB/T 28011.Take two shanks and test their length, longitudinal stiffness and hardness first, then select the shank with the greatest hardness.
The bending performance test is carried out. The longitudinal stiffness of the injection molded midsole is tested according to the provisions of QB/T 4862.
6.11 Yellowing resistance
6.11.1 Judgment of light-colored materials. According to GB/T 4841.3, the color that is not darker than 1/12 of the standard depth of dyeing is light-colored.
6.11.2 Test according to Method A in HG/T 3689-2014, with an irradiation time of 6 h. If the sampling volume is insufficient, materials from the same batch may be used.
Conduct inspection.
6.12 Bonding strength between outsole and midsole
6.12.1 According to GB/T 21396-2008, samples are cut and tested. The number of samples is 1 pair, and 1 sample is taken from each sole.
The result is the lower value of the test results of the two shoes.
6.12.2 If the sample sole is made of hard material and is difficult to cut, use a cutter to cut a 50 mm × 15 mm piece of the outer soft material without cutting the hard material.
Materials are then inspected according to GB/T 21396-2008.
7.Judgment Rules
7.1 The main items of labeling, physical and mechanical properties and sensory quality meet the requirements of this document, while the minor items of sensory quality do not meet the requirements of this document
If there are no more than two items, the product is judged to be qualified.
7.2 If any of the following situations occurs, the product will be judged as unqualified.
a) The marking does not comply with the requirements of this document;
b) The physical and mechanical properties do not meet the requirements of this document;
c) One or more of the main sensory quality items do not meet the requirements of this document;
d) More than two of the minor sensory quality items do not comply with the requirements of this document.
8 Inspection rules and marking, packaging, transportation and storage
Inspection rules, marking, packaging, transportation and storage shall be in accordance with QB/T 1187.
......
QB/T 4546-2013
QB
LIGHT INDUSTRY STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 61.060
Classification code. Y78
File No.. 43568-2013
Children’s leather sandals
儿童皮凉鞋
ISSUED ON. DECEMBER 31, 2013
IMPLEMENTED ON. JULY 01, 2014
Issued by. Ministry of Industry and Information Technology
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 5
4 Classification of products ... 6
5 Requirements ... 6
6 Test method ... 11
7 Inspection rules ... 14
8 Packaging, transportation and storage ... 16
Annex A ... 18
Annex B... 19
Foreword
This standard is drafted according to the rules provided in GB/T 1.1-2009.
This Standard was proposed by China Light Industry Council.
This Standard shall be under the jurisdiction of National Standardization Technical
Committee leather footwear sub-technical committee (SAC/TC 305/SC1).
Drafting organizations of this standard. National Center for Footwear Quality Supervision
and Inspection (Wenzhou), Zhejiang Red Dragonfly Footwear Co Ltd., Shanghai
Xiongmeimao Children's Products Co., Ltd., New Belle Footwear (Shenzhen) Co., Ltd.
AND Qibu (China) Children's Products Co., Ltd.
Main drafters of this standard. Mao Xiaohui, Yang Zhimin, Wang Jianbin, Shen Lizhu,
Song Xiaowu, Zhou Jianzhang, Wang Fa and Zhu Li.
Children’s Leather Sandals
1 Scope
This Standard specifies children’s leather sandals’ terms and definitions, product
classification, requirements, test methods, inspection rules as well as packaging,
transportation and storage.
This Standard applies to children’s leather sandals made of different processes of which
the uppers (bands) surface is made of natural leather, artificial leather, synthetic leather
and textile material.
2 Normative references
The following documents are indispensable for application of this document. For the dated
documents so quoted, only the dated versions apply to this document. For the undated
documents so quoted, the latest versions (including all modification sheets) apply to this
document.
GB/T 2703 Footwear - Vocabulary
GB/T 2912.1-2009 Textiles - Determination of formaldehyde - Part 1. Free and
hydrolyzed formaldehyde (water extraction method) (ISO 14184-1.1998, MOD)
GB/T 3293-2007 Chinese last systems
GB/T 3293.1 Shoes sizes (GB/T 3293.1-1998, IS0407.1991, IDT)
GB/T 3903.1-2008 Footwear - General test methods - Flexing resistance
GB/T 3903.2-2008 Footwear - General test methods - Abrasion resistance
GB/T 3903.3-2011 Footwear - General test methods - Peeling strength
GB/T 3903.4-2008 Footwear - General test methods - Hardness
GB/T 3903.5-20l 1 Footwear - General test methods - Appearance quality
GB 6675-2003 National safety technical code for toys (ISO 8124.1.2000,
IS08124.2.1994, IS08124-3.1997, MOD)
GB/T 17592-2011 Textiles - Determination of the banned azo colourants
GB/T 19941-2005 Leather and fur - Chemical tests - Determination of formaldehyde
content(ISO/TC 17226.2003, MOD)
GB/T 19942-2005 Leather and fur - Chemical tests - Determination of banned azo
colourants (ISO/TC 17234.2003, MOD)
GB/T 22807-2008 Leather and fur - Chemical tests - Determination of chromium VI
content
GB 28011-2011 Shanks for footwear
QB/T 1472 Flexing index of fiberous board for footwear
QB/T 2673 Footwear - Specification of marking
QB/T 2709-2005 Leather - Physical-mechanical tests - Determination of thickness (ISO
2589.2002, MOD)
QB/T 2882-2007 Footwear - Test methods for uppers linings and insocks - Colour
fastness to rubbing (ISO 17700.2004, IDT)
QB/T 4340-2012 Footwear - Chemical test method - Total heavy metal content -
Inductively coupled plasma emission spectroscopy
HG/T 2877-1997 Determination of pull-out force of upper bands from bottom of slippers
or sandals
3 Terms and definitions
The following terms and the definitions defined in GB/T 2703 apply to this document.
3.1
Infant’s leather sandals
Leather scandals for infants at the age of 3 or below, of which the shoe size is not more
than 170 mm.
3.2
Children’s leather sandals
Leather scandals for children above the age of 3 and under 14, of which the shoe size is
not more than 250 mm.
3.3
Closed sandals
2.8mm
1) For shoe size ≤ 25 mm, the positions of force at front half outsoles can be exempted from
assessment on pattern-deduction thickness.
5.3 Odor
Odor rating is not greater than grade 2.
5.4 Total thickness of shoe upper-band
Not less than 1.0 mm.
5.5 Physical-mechanical property (infants’ lather sandals are not tested)
5.5.1 Folding-resistant property
5.5.1.1 Test conditions. Pre-cut 5 mm, 40,000 times of continuous folding.
5.5.1.2 Technical indexes of folding-resistant property. Length of cut gap after folding is
not greater than 20.0 mm. New crack length after folding is not greater than 5.0 mm; there
shall be at most 3 new cracks after folding. After folding, upper shall be free of crazing and
facture; upper-sole shall be free of glue failure.
5.5.1.3 Natural leather outsoles shall be conducted for non-cut hard fold test for 40,000
times; single crack shall not be greater than 5 mm; there shall be at most 3 cracks. After
folding, upper shall be free of crazing and facture; upper-sole shall be free of glue failure.
5.5.1.4 Folding-resistant property is not tested if shoe size is below 230 mm; for thickness
of shoe sole’s folding portion that is more than 25 mm, or the folding portion of shoe sole
is made from hard material, it is not subjected to folding-resistant property.
5.5.2 Wearing-resistant property
5.5.2.1 Test conditions. Apply a pressure of 4.9 N; wear continuously for 20 min.
5.5.2.2 Wearing resistance technical specifications. Wear-scare length is not greater than
15.0 mm.
5.5.2.3 Natural leather outsoles are not tested on wearing-resistant property.
5.5.3 Upper-sole peeling-strength
5.5.3.1 Test conditions. Blade width is (10±0.05) mm.
5.5.3.2 For children’s leather sandals that are manufactured through non-adhesive
(including sticky seam) process, peeling-strength is not tested.
5.5.3.3 For children’s leather sandals (excluding composite sole) of which the thickness of
6 Test method
6.1 Sensory quality
Inspect according to GB/T 3903.5-2011.
6.2 Peculiar smell
6.2.1 Test equipment
Dryer. diameter is 240mm (shoe size is 200mm and below), diameter is 300mm (shoe
size > 200mm ~ 250mm).
6.2.2 Test environment
Test shall be carried out in environment at here the gas is distributed freely; adjustment
space shall be ideal as possible.
6.2.3 Judging personnel
There shall be at least 3 personnel. They shall be the professionals who have been
trained and evaluated, without smell defects. Heavy smokers, personnel who use strong
perfume-cosmetics or after-drinking are not qualified for judging.
6.2.4 Number of samples
Two pairs.
6.2.5 Test procedures
6.2.5.1 Clean and dry the vacuum drier to make it tasteless.
6.2.5.2 Respectively put each shoe into vacuum dryer; apply cover; stand at room
temperature for 24 h.
6.2.5.3 During peculiar smell judgment, lid is removed to form an opening of 20 mm; test
personnel moves his head closely to the test vessel (at a distance of about 15 cm); then
flap slowly with hand; slowly absorb the gas in vacuum dryer; the time is not more than 5
s.
6.2.5.4 For the remaining 3 shoes, repeat the steps in 6.2.5.3. Interval between two tests
is 2 min.
6.2.6 Judgment of test results
Judgment of peculiar smell on each shoe shall conform to the provisions in Table 4. Adopt
the opinions of over half judging personnel as the assessment result of that shoe; take the
6.9.3 Clamp moving speed. (25±5) mm/min.
6.9.4 Environmental temperature. (23±2)°C.
6.9.5 Upper and lower clamps are respectively for shoe sole (upper-sole’s bonding course
shall not be clapped) and shoe upper-band.
6.9.6 Maximum force value applied to pull shoe upper and sole open is called pullout force;
take the arithmetic mean of two test results as the test result. Results of each shoe are
separately indicated.
6.9.7 Calculation of upper-band pullout force.
Where,
σ -- Upper-band pullout force, in Newton per centimeter (N/cm);
F -- Maximum pullout force, in Newton (N);
B -- Upper-band width of strip, in centimeters (cm).
6.10 Upper-band pullout force
Inspect according to method B in HG/T 2877-1997; take 1 pair of samples; respectively
take 1 sample from inner and outer sides of each shoe; take the arithmetic mean of two
test samples from each shoe as the result; the result of each shoe is respectively
indicated.
6.11 Flexing index of fiberboard
Inspect according to QB/T 1472; draw samples from warehouse that are of the same lot
number for inspection.
6.12 Rubbing f...
......
Standard ID | QB/T 4546-2021 (QB/T4546-2021) | Description (Translated English) | Children""s leather sandals | Sector / Industry | Light Industry Industry Standard (Recommended) | Classification of Chinese Standard | Y78 | Classification of International Standard | 61.060 | Word Count Estimation | 9,921 | Date of Issue | 2021-12-02 | Date of Implementation | 2022-04-01 | Older Standard (superseded by this standard) | QB/T 4546-2013 | Quoted Standard | GB/T 2703; GB/T 3903.1; GB/T 3903.2-2017; GB/T 3903.3-2011; GB/T 3903.4-2017; GB/T 3903.5; GB/T 4841.3; GB/T 20991-2007; GB/T 21396-2008; GB/T 28011; GB/T 38011; HG/T 3689-2014; QB/T 1187; QB/T 1472; QB/T 2673; QB/T 2882-2007; QB/T 4862 | Summary | This standard specifies the requirements, determination rules, inspection rules and marking, packaging, transportation and storage of children's leather sandals, specifies the corresponding test methods, specifies the relevant terms and definitions, and specifies the product classification. This standard applies to the production, inspection and sales of leather sandals for infants and children and children's leather sandals for general use, which are made of natural leather, artificial leather, synthetic leather and textiles as the main materials for the upper straps (surfaces) through various processes. This standard does not apply to infant and children's sandals with special functions. For infants and children sandals with straps (surfaces) made of other materials, this standard may be implemented by reference. | Standard ID | QB/T 4546-2013 (QB/T4546-2013) | Description (Translated English) | Children leather sandals | Sector / Industry | Light Industry Industry Standard (Recommended) | Classification of Chinese Standard | Y78 | Classification of International Standard | 61.06 | Word Count Estimation | 13,148 | Date of Issue | 2013-12-31 | Date of Implementation | 2014-07-01 | Quoted Standard | GB/T 2703; GB/T 2912.1-2009; GB/T 3293-2007; GB/T 3293.1; GB/T 3903.1-2008; GB/T 3903.2-2008; GB/T 3903.3-2011; GB/T 3903.4-2008; GB/T 3903.5-2011; GB 6675-2003; GB/T 17592-2011; GB/T 19941-2005; GB/T 19942-2005; GB/T 22807-2008; GB 28011-2011; QB/T 1472; | Drafting Organization | National Quality Supervision and Inspection Center of footwear (Wenzhou) | Administrative Organization | National Standardization Technical Committee of leather shoe Technical Sub-Committee | Regulation (derived from) | Ministry of Industry and Information Technology Bulletin No. 71 of 2013; industry standard for filing Notice No. 2 of 2014 (No. 170 overall) | Summary | This standard specifies the use of visual Test Method for Determination of liquefied petroleum gas at below 0��C free water present. This standard applies to liquefied petroleum gas. |
|