Лако-красочные материалы — производство

The benzodifuranones constitute one of the more recently introduced groups of carbonyl dyes. They were launched commercially in the late 1980s by ICI as disperse dyes for application to polyester. This group of dyes, of which compound 62 is a representative example, are capable of

providing a range of colours but the most important are red. They provide bright intense red shades on polyester with good fastness to light, sublimation and washing. For good build-up of colour on polyester, it has been found that asymmetric products, such as compound 62, perform better than when the molecules are symmetrically substituted.