Patent ID: 6187059
Filing Date: 2001-02-13
Classification: C09B,D21H,Y10S

Abstract:
A method of shading paper for use in connection with foodstuffs, and having at least one layer of pulp, comprising:(a) treating the at least one layer, or the pulp before formed into the paper layer, with a color mixture of at least two pigments that are approved for foodstuffs, the primary component of the color mixture comprising more than 50 percent of the color mixture, and comprising quinacridone red with the FDA registration data C.I. pigment violet 19, C.I. No. 73900 (Code of Federal Regulations, Food and Drugs, Title 21, Part 170-199), so as to obtain a shaded paper with a value for the color coordinate b* that is between 0 and 3, suitable for use with foodstuffs.