Disperse dye mixtures which have a high degree of light fastness and build-up
AssigneeDystar, L.P.
InventorsVan Chambers, Lyle Burleyson, Ronald Pedemonte
Life of this patent
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Abstract
A dye composition which contains a blue colored dye mixture which contains from 71 to about 90 wt % with respect to the total pigment fraction of a blue pigment which is represented by structural formula [1] wherein one of X1 and X2 represents NO2 and the other represents OH, from about 10 to about 30 wt % with respect to the total pigment fraction of two different blue pigments which are different and are represented by structural formula [2] wherein R1 represents —C3H6OCH3, —C3H6OC2H5 or —C3H6OC2H4OCH3.
Claims16
A dye composition which comprises a blue colored dye mixture which contains from 71 to 90 wt % of a blue pigment which is represented by structural formula (1)
- wherein one of X1 and X2 represents NO2 and the other represents OH, and
- from 10 to 29 wt % of two different blue pigments which are different and are represented by structural formula (2)
- wherein R1 represents —C3H6OCH3, —C3H6OC2H5 or —C3H6OC2H4OCH3.
Dependencies are inferred from the claim text.