Special effects with mixtures of interference pigments

Abstract

A method of producing mixtures of interference pigments having special effects comprises mixing at least one large particle size interference pigment with at least one normal size interference pigment of predetermined colors and in proportions desired to obtain a unique effect.

1 . A method of producing mixtures of interference pigments having special effects comprising mixing at least one large particle size interference pigment with at least one normal size interference pigment of predetermined colors and in proportions desired to obtain a unique effect. 
   
   
       2 . A method according to  claim 1  wherein the large particle size interference pigment has a median size (D50) of more than 40 μm. 
   
   
       3 . A method according to  claim 1  wherein the normal particle size interference pigment has a median size (D50) of less than 40 μm. 
   
   
       4 . A mixture of pigments as obtained by  claim 1 . 
   
   
       5 . A mixture of pigments according to  claim 4 , wherein at least one large particle size pigment has a non-complementary color to at least one normal size pigment. 
   
   
       6 . Cosmetics, personal care products, paints, coatings and printing inks containing the mixture of pigments according to  claim 1 . 
   
   
       7 . Formulations according to  claim 6  containing at least one constituent selected from absorbents, astringents, antimicrobial substances, antioxidants, antiperspirants, antifoaming agents, antidandruff active ingredients, antistatics, binders, biological additives, bleaching agents, chelating agents, deodorants, emollients, emulsifiers, emulsion stabilisers, dyes, fillers, humectants, film formers, odour substances, flavour substances, insect repellents, preservatives, anticorrosion agents, cosmetic oils, solvents, oxidants, vegetable constituents, buffer substances, reducing agents, surfactants, propellent gases, opacifiers, UV filters and UV absorbers, denaturing agents, viscosity regulators, perfume and vitamins. 
   
   
       8 . Cosmetics and personal care products according to  claim 5  which are of the lipophilic, hydrophilic or hydrophobic type.