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US 2006/0230549 A1Published application
Disperse dye mixtures which have a high degree of light fastness
AssigneeDyStar Textilfarben GmbH & Co. Deutschland KG
InventorsToshio Hihara, Wataru Seto, Koichi Fujisaki, Daisuke Hosoda, Hiroshi Inoue
Life of this patent
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Abstract
The present invention provides a blue dye mixture which contains the pigments represented by formulae [1], [2], [3], and [4] The present invention also relates to dye mixtures in which there are compounded therewith a yellow dye mixture and/or a red dye mixture. The invention further relates to a method of dyeing polyester-based fibers and dyed polyester-based fibers and dyed polyester-based fiber materials.
Claims11
1-8. (canceled)
A blue colored dye mixture which comprises
- from 10 to 60 wt % with respect to the total pigment fraction of a blue pigment which is a mixture of the two isomers represented by structural formula (1)
- wherein one of X1 and X2 represents NO2 and the other represents OH,
- from 60 to 10 wt % with respect to the total pigment fraction of a blue pigment represented by structural formula (2)
- wherein R1 represents —C3H6OCH3, —C3H6OC2H5 or —C3H6OC2H4OCH3,
- from 10 to 30 wt % with respect to the total pigment fraction of the blue pigment which can be represented by structural formula (3)
- and from 20 to 0 wt % with respect to the total pigment fraction of a blue pigment which can be represented by structural formula (4)
- wherein R2 represents a hydrogen atom or a C1 or C2 alkyl group, and R3 represents a hydrogen atom, a C1 or C2 alkyl group or a C1 or C2 alkoxy C1 or C2 alkyl group.
4 more elements
Dependencies are inferred from the claim text.