Method for introducing dyes and other chemicals into a textile treatment system

A system for introducing a textile treatment material and for treating textile materials, the system comprising:

• (a) a preparation vessel adapted for placement in fluid communication with a textile treatment system, the preparation vessel also adapted for receiving a textile treatment material and for containing near-critical liquid carbon dioxide or supercritical fluid carbon dioxide at a first set of temperature, pressure and flow conditions;
• (b) isolating means for reversibly isolating the preparation vessel from a textile treatment system;
• (c) mixing means for mixing a textile treatment material with near-critical liquid carbon dioxide or supercritical fluid carbon dioxide in the preparation vessel;
• (d) introducing means for introducing a solution or a suspension of the textile treatment material in near-critical liquid carbon dioxide or supercritical fluid carbon dioxide into a textile treatment system;
• and
• (e) a textile treatment system that is adapted to be maintained at a second set of temperature, pressure and flow conditions controllably independent from the first set of temperature, pressure and flow conditions.

A system or introducing a textile treatment material and for treating textile materials, the system comprising:

• (a) a preparation vessel adapted for placement in fluid communication with a supercritical fluid carbon dioxide textile treatment system, the preparation vessel also adapted for receiving a textile treatment material and for containing near-critical liquid carbon dioxide or supercritical fluid carbon dioxide at a first set of temperature, pressure and flow conditions;
• (b) isolating means for reversibly isolating the preparation vessel from a supercritical fluid carbon dioxide textile treatment system;
• (c) mixing means for mixing a textile treatment material with near-critical liquid carbon dioxide or supercritical fluid carbon dioxide in the preparation vessel;
• (d) introducing means for introducing a solution or a suspension of the textile treatment material in near-critical liquid carbon dioxide or supercritical fluid carbon dioxide into a supercritical fluid carbon dioxide textile treatment system;
• and
• (e) a supercritical fluid carbon dioxide textile treatment system that is adapted to be maintained at a second set of temperature, pressure and flow conditions controllably independent from the first set of temperature, pressure and flow conditions.