Apparatus for processing of leather

An apparatus for processing of leather objects, said leather objects being pre-treated at least by a tanning process, said apparatus comprising:

• a process chamber;
• a controllable compressor for pressurizing a fluid;
• a pressure reducing member;
• an inlet for a processing agent;
• and
• a controller,
• wherein:
• said process chamber is configured in a form of a pressure chamber,
• said controllable compressor for:
• pressurizing the fluid is configured for introducing pressurized fluid into the process chamber from a source of said fluid, controlled by the controller, and
• providing a predefined pressure in the process chamber in order to reach a supercritical state of said fluid,
• said inlet for the processing agent is configured for facilitating introduction of said processing agent into the process chamber prior to, during, or subsequent to pressurization of the fluid,
• said pressure reducing member is configured for, controlled by the controller, reducing the pressure of the pressurized fluid at least to reach a gaseous state subsequent to processing of said leather object such that the reduction of the pressure does not exceed a predefined leather pressure reduction gradient of 10 bar/min.

An apparatus for processing of leather objects, said leather objects being pre-treated at least by a tanning process, said apparatus comprising:

• a process chamber;
• a controllable compressor for pressurizing a fluid;
• a pressure reducing member;
• an inlet for a processing agent;
• and
• a controller,
• wherein:
• said process chamber is configured in a form of a pressure chamber,
• said controllable compressor for:
• pressurizing the fluid is configured for introducing pressurized fluid into the process chamber from a source of said fluid, controlled by the controller, and
• providing a predefined pressure in the process chamber in order to reach a supercritical state of said fluid,
• said inlet for the processing agent is configured for facilitating introduction of said processing agent into the process chamber prior to, during, or subsequent to pressurization of the fluid,
• said pressure reducing member is configured for, controlled by the controller, reducing the pressure of the pressurized fluid at least to reach a gaseous state subsequent to processing of said leather object such that:
• a time for reduction of the pressure exceeds a predefined reduction period, or
• the reduction of the pressure does not exceed a predefined leather pressure reduction gradient, and
• the apparatus is configured such that an increase of the pressure does not exceed a predefined leather pressure increase gradient of 20 bar/min.