Apparatus for dyeing textile substrates with foamed dye
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United States of America Patent
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Mar 29, 2011
Grant Date -
Aug 7, 2008
app pub date -
Jan 31, 2008
filing date -
Apr 28, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
An apparatus for dyeing a textile substrate using a plurality of applicators that each apply an increment of a total dye application. In one form a reduced indigo dye in a leuco-state is applied in an inert atmosphere substantially isolated from oxidizing substances. In another form the foamed dye is applied while open to the atmosphere. In both forms holddown rollers or inverted applicators are located between applicators at decreasing depths to minimize increases in tension as the substrate travels over successive applicator faces.
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