Coated bismuth oxy halide-based pigment

A coated bismuth oxy halide-based pigment having a coating comprising

• an antioxidant, said antioxidant being a phenol based, a phosphite or phosphonate based, or a thioether based stabilizer, and
• said coating comprising an inner coating and an outer coating,
• wherein the outer coating comprises the antioxidant, and
• wherein the inner coating comprises a first layer consisting of one or more salts, or one or more oxides, heteropolyacids, organic acids, sulphites, sulfides, sulfates, phosphates, pyrophosphates, polyphosphates, hydrates, carbonates, or a combination thereof, selected from the group of alkali-earth metals, non-metals, transition metals or lanthanides,
• wherein the inner coating comprises a second layer comprising silicon dioxide and functionalized silane,
• wherein the functionalized silane is of a general formula R—Si—(OR′)3, wherein R is an alkyl group, an aryl group, or a combination thereof being then said alkyl group substituted with at least one aryl group;
• or R is an alkyl group being substituted with at least one electron donating group;
• and R′ is an alkyl group or an aryl group, and
• wherein the first layer comprises an outer layer of the inner coating, and the second layer comprises an inner layer of the inner coating.