Double-face
1 Scope
This document specifies the technical requirements of double-face such as safety performance, sensory quality and physical and chemical performance, describes the corresponding test methods, stipulates the grading, inspection rules, marking, packaging, transportation and storage, and also gives the product classification to facilitate specification of techniques.
This document is applicable to the production, inspection, grading and marketing of various types of double-face for clothing and shoes.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 4841.3 Colour cards of standard depths for dyeing with dyestuffs 1/2, 1/3, 1/6, 1/12, 1/25
GB 20400 Leather and fur - Limit of harmful matter
GB/T 39366 Leather - Tests for colour fastness - Colour fastness to crocking
GB/T 39368 Leather - Physical and mechanical tests - Determination of flex resistance: Vamp flex method
QB/T 1261 Fur industry terminology
QB/T 1267 Fur - Chemical, physical and mechanical and fastness tests - Sampling location
QB/T 1269 Fur - Physical and mechanical tests - Determination of tensile strength and percentage extension
QB/T 1271 Fur - Physical and mechanical tests - Determination of shrinkage temperature
QB/T 1277 Fur - Chemical tests - Determination of pH
QB/T 2262 Definitions of terms for leather industry
QB/T 2711 Leather - Physical and mechanical tests - Determination of tear load - Double edge tear
QB/T 2712 Leather - Physical and mechanical tests - Determination of distension and strength of grain - Ball burst test
QB/T 2714 Leather - Physical and mechanical tests - Determination of flex resistance
QB/T 2725 Leather - Determination of odour
QB/T 2727-2017 Leather - Tests for color fastness - Color fastness to artificial light: xenon arc fading lamp test
QB/T 2790 Dyeing fur - Testing method for colour fastness to rubbing
QB/T 2925-2023 Fur - Test methods for color fastness to light
3 Terms and definitions
For the purposes of this document, the terms and definitions given in QB/T 1261 and QB/T 2262 apply.
4 Product classification
According to the product use, it can be classified into the following two categories:
——Double-face for clothing;
——Double-face for shoes.
Contents
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Product classification
5 Requirements
6 Test methods
7 Grading
8 Inspection rules
9 Marking, packaging, transportation and storage
