Method for introducing dyes and other chemicals into a textile treatment system
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United States of America Patent
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Jul 17, 2001
Grant Date -
N/A
app pub date -
Jan 13, 2000
filing date -
Jan 13, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for introducing a textile treatment material into a textile treatment system, particularly a supercritical fluid carbon dioxide (SCF-CO.sub.2) treatment system. The process includes the steps of providing a preparation vessel in fluid communication with a textile treatment system; loading a textile treatment material into the preparation vessel; dissolving or suspending the textile treatment material in near-critical liquid carbon dioxide or supercritical fluid carbon dioxide in the preparation vessel; and introducing the dissolved or suspended textile treatment material into the textile treatment system. The textile treatment material can be selected from a group including a brightening agent, a whitening agent and a dye. A system suitable for use in carrying out the process is also disclosed.
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