申请人:——
公开号:US20030024435A1
公开(公告)日:2003-02-06
Black-dyeing aqueous inks comprising
20 to 95% by weight of at least one dye (A), together with 5 to 80% by weight of at least one dye chosen from the group consisting of (B) and (C), based on the total weight of the dyes (A), (B) and (C) in the ink, and 1 to 40% by weight of a water-miscible organic solvent, based on the total weight of the ink, the dye (A) containing, as the colouring part of the molecule, one or more radicals of the formula (I), (II), (III) or (IV)
1
the dye (B) containing, as the coloring part of the molecule, one or more mono- or disazo radicals containing sulfo groups or one or more radicals of the formula (V), (VI), (VII) or (VIII)
2
and the dye (C) containing, as the coloring part of the molecule, one or more mono- or disazo radicals containing sulfo groups or one or more radicals of the abovementioned formula (V), (VI), (VII) or (VIII) and one or more radicals of the abovementioned formula (I), (II), (III) or (IV), in which
(G)
0-2
is 0 to 2 identical or different substituents from the group consisting of substituted or unsubstituted amino, hydroxyl and nitro,
L is substituted or unsubstituted amino,
R is halogen, C
1
-C
4
alkyl, C
1
-C
4
alkoxy, C
2
-C
4
alkanoylamino, hydroxyl, carboxyl, nitro or cyano,
(V)
0-2
is 0 to 2 identical or different substituents from the group consisting of halogen, C
1
-C
4
alkyl, C
1
-C
4
alkoxy, &bgr;-sulfatoethylsulfonyl and sulfo,
(W)
0-1
is an N-acyl radical, if any,
n is the number 0, 1, 2 or 3,
m is the number 1, 2 or 3 and
r and q are the number 0 or 1.
The inks according to the invention are distinguished by good black shades without a change in shade in artificial light (metamerism) and an outstanding fastness to light.
黑色
染料水性墨
水包括20至95重量%的至少一种
染料(A),以及选择自(B)和(C)组中的至少一种
染料,其重量占墨
水中
染料(A),(B)和(C)的总重量的5至80重量%,以及
水溶性有机溶剂的1至40重量%,以总墨
水重量计,其中
染料(A)的分子中含有一个或多个公式(I),(II),(III)或(IV)的基团作为着色部分,
染料(B)的分子中含有一个或多个含有
磺酸基的单或双偶氮基团或一个或多个公式(V),(VI),(VII)或(VIII)的基团作为着色部分,
染料(C)的分子中含有一个或多个含有
磺酸基的单或双偶氮基团或一个或多个上述公式(V),(VI),(VII)或(VIII)的基团和一个或多个上述公式(I),(II),(III)或(IV)的基团作为着色部分,其中(G)0-2为来自取代或未取代
氨基,羟基和硝基组的0至2个相同或不同的取代基,L为取代或未取代
氨基,R为卤素,C1-C4烷基,C1-C4烷氧基,C2-C4烷酰
氨基,羟基,羧基,硝基或
氰基,(V)0-2为来自卤素,C1-C4烷基,C1-C4烷氧基,β-
磺酸乙基磺酰基和
磺酸基的0至2个相同或不同的取代基,(W)0-1为N-酰基基团(如果有),n为0、1、2或3,m为1、2或3,r和q为0或1。本发明的墨
水具有良好的黑色色调,不会因人工光线(元色)而改变色调,并具有优异的耐光性。