申请人:ZENECA LIMITED
公开号:EP0559331A1
公开(公告)日:1993-09-08
A high strength aqueous solution comprising a first and second dye each of which, in the free acid form, is of Formula (1):
wherein:
R¹is NH₂ or alkyl;
Wis H, alkyl or alkoxy;
Xis a labile atom or group;
Ais
Yis H or alkyl;
Zis an optionally substituted phenyl group; and
nhas a value of 1 to 3;
provided that
(i) the groups defined by A in the first and second dye are different to one another; and
(ii) the solution contains less than 5% by weight of inorganic compounds.
Also claimed are compositions and dyes of Formula (1).
一种高浓度水溶液,包含第一种和第二种染料,每种染料的游离酸形式都是式 (1):
其中
R¹为 NH₂或烷基;
是 H、烷基或烷氧基;
X是易变原子或基团;
A是
是 H 或烷基;
Z 是任选取代的苯基;以及
n 的值为 1 至 3;
条件是
(i) 第一和第二染料中由 A 定义的基团彼此不同;以及
(ii) 溶液中无机化合物的含量少于 5%(按重量计)。
还要求得到式(1)的组合物和染料。