Leather - Tests for colour fastness - Colour fastness to crocking
NORM herausgegeben am 1.10.2024
Bezeichnung normen: ČSN EN ISO 20433
Zeichen: 793859
Katalog-Nummer: 519718
Ausgabedatum normen: 1.10.2024
Zahl der Seiten: 20
Gewicht ca.: 60 g (0.13 Pfund)
Land: Tschechische technische Norm
Kategorie: Technische Normen 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