| abstract |
Abstract of the disclosure 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, cos-metics, food stuffs and animal feed. |