Method of dyeing substrates in carbon dioxide
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United States of America Patent
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-
Jan 4, 2000
Grant Date -
N/A
app pub date -
Aug 28, 1998
filing date -
Aug 29, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of dyeing a substrate in carbon dioxide comprises the steps of (a) providing a dye composition comprising carbon dioxide, a dye, and a surfactant, the surfactant included in an amount sufficient to solubilize, emulsify or disperse the dye in the carbon dioxide; and then (b) dyeing said substrate with said dye composition.
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