Natural dyestuffs for gelatine capsules
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United States of America Patent
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-
May 19, 1981
Grant Date -
N/A
app pub date -
Jul 13, 1979
filing date -
Jul 24, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Process for stabilizing dyestuffs sensitive to light and/or oxidation, especially natural dyestuffs, by adsorption on a highly disperse adsorbent, whereby the dyestuff is immobilized, as well as the application of the process to dyestuffs which are determined for dyeing medicines, for instance gelatine capsules for medicinal purposes, cosmetics, food stuffs and animal feed.
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Cited Art Landscape
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