QB/T 2790-2025 Fur - Test methods for colour fastness to rubbing
1 Scope
This document describes a test method for the determination of colour fastness to rubbing of fur.
This document is applicable to the determination of colour fastness to rubbing of dyeing fur.
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 251 Textiles - Tests for colour fastness - Grey scale for assessing staining
GB/T 6682 Water for analytical laboratory use - Specification and test methods
GB/T 7568.2 Textiles - Tests for colour fastness - Standard adjacent fabrics - Part 2: Cotton and viscose
QB/T 1266 Fur - Physical and mechanical tests - Sample preparation and conditioning
QB/T 1267 Fur - Chemical, physical and mechanical and fastness tests - Sampling location
3 Terms and definitions
No terms and definitions are specified in this document.
4 Principle
Under specified conditions, the hair side of the dyeing fur is rubbed in the direction of the hair with a white cotton cloth (dry or wet), and then, the degree of staining of the white cotton cloth is assessed against a grey scale for assessing staining.
5 Apparatus and materials
5.1 Test apparatus for colour fastness to rubbing: The rubbing head shall consist of a cylindrical body with a diameter of (30.0±0.2)mm. A downward force of (14.0±0.2)N shall be applied. The rubbing head may perform linear directional movement of (150±5)mm along the direction of the hair on the test specimen, at a reciprocating speed of 26 cycles per minute.
5.2 White cotton cloth (rubbing cloth): Conforming to the requirements of GB/T 7568.2, cut into square pieces of approximately 80mm×80mm, suitable for use with the rubbing head specified in 5.1.
Contents
Foreword I
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus and materials
6 Sampling and preparation of test specimens
7 Test procedures
8 Result assessment
9 Assessment error
10 Test report
