Leather; Determination of shrinkage temperature

This technical specification establishes a uniform method for determining the shrinkage temperature of leather products. The procedure involves preparing a standardized sample, typically in the form of a strip or disc, and subjecting it to a series of controlled temperature increments in a specified liquid medium. By monitoring dimensional changes, the temperature at which significant shrinkage occurs is identified, providing a critical quality indicator. The approach is designed to ensure reproducibility and comparability of results across different laboratories and manufacturing environments. It covers the necessary equipment calibration, sample conditioning, and step-by-step testing protocols. The method applies to various types of processed leather, offering valuable data for quality control and product development. Adherence to the prescribed steps ensures accurate measurement of the thermal stability characteristics inherent to the material. This standardized test serves as a reference for evaluating the finishing processes and the fundamental integrity of the leather substrate without assessing the material's suitability for specific end uses.