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US 2015/0353735 A1Published application
Aox-free navy and black disperse dyes
AssigneeDyStar Colours Distribution GmbH
InventorsFANNY VERMANDEL, Adrian MURGATROYD, Clemens GRUND, Manfred HOPPE, Ulrich WEINGARTEN
Life of this patent
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Abstract
This invention relates to disperse azo dye mixtures, which have Navy or Black colour and are AOX-free.
Claims14
-11. (canceled)
A dye mixture comprising
- at least one dye of formula (2)
- and
- at least one dye selected from the group consisting of the dyes of formula (3a), (3b), (3c), (3d) and (3e)
- and
- one dye of formula (4a)
- and optionally
- at least one dye selected from the group consisting of the dyes of formula (5a) and (5b)
- wherein independent from each other
- R2 and R3 is hydrogen, (C1-C4)-alkoxy or (C1-C4)-alkyl,
- R4 to R11 is (C1-C4)-alkyl, —(CH2)n—O—(C1-C4)-alkyl, —(CH2)n—O—CO—(C1-C4)-alkyl or —(CH2)n—COO—(C1-C4)-alkyl,
- X1 and X2 is nitro, cyano, carboxy or CO—NR2R3,
- X3 and X4 is hydrogen, cyano or nitro,
- Y1 is —(CH2)m-phenyl substituted by Y2, wherein
- Y2 is hydrogen, nitro, cyano, carboxy, (C1-C4)-alkyl or (C1-C4)-alkyoxy,
- n is 1, 2, 3 or 4 and
- m is 1, 2, 3 or 4.
13 more elements
A dye mixture comprising
- at least one dye of formula (I)
- and
- at least one dye of formula (2)
- and
- at least one dye selected from the group consisting of the dyes of formula (3a), (3b), (3c), (3d) and (3e)
- and
- one dye of formula (4a)
- and optionally
- at least one dye selected from the group consisting of the dyes of formula (5a) and (5b)
- wherein independent from each other
- R2 and R3 is hydrogen, (C1-C4)-alkoxy or (C1-C4)-alkyl,
- R4 to R11 is (C1-C4)-alkyl, —(CH2)n—O—(C1-C4)-alkyl, —(CH2)n—O—CO—(C1-C4)-alkyl or —(CH2)n—COO—(C1-C4)-alkyl,
- X1 and X2 is nitro, cyano, carboxy or CO—NR2R3,
- X3 and X4 is hydrogen, cyano or nitro,
- Y1 is —(CH2)m-phenyl substituted by Y2, wherein
- Y2 is hydrogen, nitro, cyano, carboxy, (C1-C4)-alkyl or (C1-C4)-alkyoxy,
- n is 1, 2, 3 or 4 and
- m is 1, 2, 3 or 4.
15 more elements
Dependencies are inferred from the claim text.