Investigation of vat dyes as potential high performance pigments

Add time:08/07/2019    Source:sciencedirect.com

A number of vat dyes and anthraquinone intermediates (4–8c, 15) have been synthesised and then pigmented using high energy bead milling. These potential pigments have been tested alongside an isoindolinone Pigment Yellow 110 in a thermosetting acrylic/melamine formaldehyde resin paint system. Light fastness, durability and contact bleed properties were obtained for these pigments in full, reduced and metallic shades. Results have shown that these converted vat dyes and intermediates can give pigments with excellent tinctorial properties as well as good lightfastness, durability and overspray fastness properties. However, none of the vat dyes or intermediates have all of the necessary properties required of an automotive quality pigment.

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