staining, polishing, varnishing,... NATURAL OXIDES: yellow, red, brown, black STAIN, COLOURED STAIN SYNTHETIC IRON OXIDES: yellow, red, brown, black CHROME OXIDE GREEN COBALT OXIDE: green, blue ULTRAMARINE: blue, violet CARBON- or PITCH-BLACK TITANIUMDIOXIDE WHITE LEAD CHROMATE : yellow, orange WATER-SOLUBLE DYES: acid and basic A dye is a substance that needs a certain affinity with the carrier on which it is being applied. Hence a bond is created and the colouring capacity emerges. Contrary to a pigment, a dye is a dissolvable colorant and the colouring capacity will only show when dissolved. Dyes always have an organic compound. For more than 5000 years, natural resources have been the base for dyes. Leafs, roots and berries are just some of the components. Nowadays, most of these components have been replaced by synthetic variants. Of course, special dyes are applied when considering nutrition.

Additives, dyes and pigments - industrial


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