Center shaft dye injection apparatus
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United States of America Patent
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-
Feb 23, 1993
Grant Date -
N/A
app pub date -
Sep 20, 1991
filing date -
Sep 20, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved apparatus and method for dyeing materials in a wet process dye extractor is shown in which the dyeing material is injected into a vessel containing a rotating perforated basket both through the center shaft of the rotating basket and also at a rear entry port in the vessel. The dual injection of dye material speeds up and improves the process of dyeing and allows dyeing from the 'inside-out' as well as the 'outside-in'.
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Cited Art Landscape
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