Leather - Tests for colour fastness - Colour fastness to crocking
STANDARD published on 1.10.2024
Designation standards: ČSN EN ISO 20433
Classification mark: 793859
Catalog number: 519718
Publication date standards: 1.10.2024
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
This document specifies a method to determine the amount of colour transferred from the surface of coloured leather to other surfaces by rubbing.
Two tests are carried out, one with a dry rubbing cloth and one with a wet rubbing cloth.
The method is applicable to all types of coloured leather. Since after-treatments of the leather as well as surface finishes can affect the degree of colour transfer, the test can be made before and/or after such treatments