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

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United States of America Patent

PATENT NO 6615620
APP PUB NO 20010037530A1
SERIAL NO

09888924

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Abstract

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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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Patent Owner(s)

Patent OwnerAddress
NORTH CAROLINA STATE UNIVERSITY920 MAIN CAMPUS DRIVE CB8210 VENTURE BUILDING II STE 400 RALEIGH NC 27606

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Butcher, Donald L Knightdale, NC 3 31
Hendrix, Walter A Raleigh, NC 4 49
Montero, Gerardo A Garner, NC 7 46
Smith, C Brent Raleigh, NC 3 21

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