Standard Test Method for Shrinkage Temperature of Leather

Importancia y uso:

5.1 This test method is designed to determine the temperature at which a thoroughly wetted leather specimen experiences shrinkage. In this test method, shrinkage occurs as a result of hydrothermal denaturation of the collagen protein molecules which make up the fiber structure of the leather. The shrinkage temperature of leather is influenced by many different factors, most of which appear to affect the number and nature of crosslinking interactions between adjacent polypeptide chains of the collagen protein molecules. The value of the shrinkage temperature of leather is commonly used as an indicator of the type of tannage or the degree of tannage, or both, of that particular leather (especially for the more hydrothermally stable tannages such as chrome tannage).

Subcomité:

D31.07

Referida por:

D8042-18R23

Volúmen:

15.04

Número ICS:

59.140.30 (Leather and furs)

Palabras clave:

degree of tannage; leather; shrinkage; shrinkage temperature; tannage;