Process for producing dyestuffs from plant materials

Details Process for producing dyestuffs from plant materials Process for producing dyestuffs from plant materials

C - Chemistry, Metallurgy

09

B

8/48

C09B 61/00 (2006.01)

Patent

CA 1269207

ABSTRACT OF THE DISCLOSURE Plant materials such as petals, leaves, fruits, are gathered, dried at a minimum temperature of 70°C, and pulverized so as to produce light-fast, lustrous dyestuffs. Subsequently, an acid or base substance is added. It is preferred that a pH value that corresponds to the pH value of the plant materials when fresh is set. A binding agent can be added subsequently.

510140

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