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China Updates Footwear Product Standard for Children’s leather sandals – QB/T 4546-2021

SafeGuardSFootwear and Leather Products23 May 2022

QB/T 4546-2021 <Children’s leather sandals> was released on December 2, 2021 and officially implemented on April 1, 2022.

On December 2, 2021, the Ministry of Industry and Information Technology of the People’s Republic of China (PRC) issued Children’s leather sandals product standard QB/T 4546-2021, which became effective April 1, 2022. QB/T 4546-2021 replaces the previous edition, QB/T 4546-2013.

The new standard applies to the production, inspection and sale of children's and infants’ leather sandals for general use, where the uppers are mainly made of natural leather, artificial materials, or textile materials by various processes.

The new standard is not applicable to the infants’ sandals and children’s sandals with special functions.

Infants’ and children’s sandals with an upper strap (upper) made of other materials can refer to this standard.

Main Technical Changes

Revisions to QB/T 4546-2021 include:

  1. Scope
  2. Normative references
  3. Definitions of ‘infants’ leather sandals’ and ‘children’s leather sandals’
  4. ‘General requirements’
  5. ‘Appearance quality’ requirements
  6. ‘Flexing resistance of whole shoe’ and ‘peeling strength of upper-sole’ requirements
  7. ‘Abrasion resistance of outsole’ and ‘hardness of outsole’ requirements and test methods
  8. ‘Upper strap pull-out strength (or upper strap pull-out force)’ requirements, and ‘upper strap pull-out force’ test method
  9. ‘Shanks for footwear’ requirements
  10. Judgment rules
  11. Requirement of ‘packaging, transportation, storage’

Additions include:

  1. Requirements and test methods for ‘discoloration’
  2. Requirements and test methods for ‘outsole and midsole adhesive strength’
  3. Annex A of ‘after-sale quality judgment for children’s leather sandals’

Deletions include:

  1. Requirement and test method for ‘odor’ and ‘total thickness of upper strap’
  2. Requirement and test method for ‘limited substances’ and ‘physical safety performance’
  3. ‘Inspection classification’, ‘factory inspection’, ‘type inspection’, ‘inspection items’
  4. Annex A of ‘examples of classification of accessories’
  5. Annex B of ‘tensile strength test of small parts’

Main technical requirements of QB/T 4546-2021 <Children’s leather sandals>

No.

Item

Test Method

Requirement

1Appearance quality
GB/T 3903.5Comply with QB/T 4546-2021, 5.2, table 1
2Flexing resistance of whole shoeGB/T 3903.1Comply with QB/T 4546-2021, 5.3.1, table 2
3Abrasion resistance of outsoleGB/T 3903.2-2017≤15.0 mm,
After abrasion, without wearing through the outsoles.
4Peeling strength of upper-soleGB/T 3903.3-2011≥ 40 N/cm
If the material is torn and the adhesive film is still bonded during the peeling test:
≥ 30 N/cm
5Hardness of outsoleGB/T 3903.4-2017Solid outsole: 45~65 Shore A
Cellular outsole: 45~65 Shore C
6Upper strap pull-out strength QB/T 4546-2021,6.6≥ 70 N/cm
If the material is torn and the adhesive film is still bonded during the peeling test:
≥ 30 N/cm
7Upper strap pull-out forceQB/T 1472≥ 70 N
8Flexing index of fiberboardQB/T 2882-2007, Method A≥ 1.9
9Color fastness to rubbing of lining and insock
Peel strength: GB/T 3903.20
Shear strength: GB/T 3903.21
Staining grade ≥ 3
10Shanks for footwear
Shanks:GB/T 28011
The longitudinal stiffness of injection-molding midsole:
QB/T 4862
Comply with QB/T 4546-2021, 5.3.8
11Discoloration
HG/T 3689-2014, Method A
≥ 3 grade
12Outsole and midsole adhesion strengthGB/T 21396-2008≥ 20 N/cm
If the microcellular material is torn and the adhesive film is still bonded, the adhesion strength: ≥15 N/cm

Details of The Technical Content

For more information, please refer to the standard QB/T 4546-2021 <Children’s leather sandals> or contact SGS directly.

China’s GB national standards set requirements for product quality, safety and performance. SGS Global Softlines’ global network, including 10 laboratories in China, offers a wide range of CNAS and CMA accredited services for textiles, apparel, footwear and accessories to help your company demonstrate compliance with Chinese requirements. In the end, it’s only trusted because it’s tested. Contact us for more information or visit our website.  

For inquiries, please contact:

Louann Spirito
Consumer and Retail — Softlines
US & Canada Softlines Business Head
t: +1 973 461 7919

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