| abstract |
The invention relates to a method for dyeing of leather objects, said method comprising the steps of - providing (2) a leather object, which leather object has been processed by at least a tanning process, - introducing (4) the leather object into a process chamber, - subjecting (6) the leather object in the process chamber to a pressurized fluid, - controlling (10) the pressure of the pressurized fluid to reach a supercritical state, - subjecting the leather object to a dyeing agent, which dyeing agent is dissolved in the pressurized fluid for at least a predefined period of time while the pressurized fluid is in the supercritical state, - reducing (12) the pressure in the process chamber, - removing (14) the leather object from the process chamber, wherein the step of reducing the pressure in the process chamber comprises controlling the pressure reduction over time. |