申请人:Indusegaram Sutharsiny
公开号:US20090199352A1
公开(公告)日:2009-08-13
A method of modulating a stability of a sulfonated dye, particularly its ozonefastness. The method comprises providing a salt of the dye, wherein the salt comprises at least one organic cation selected from the group consisting of:
a first organic cation having a positive charge delocalized between a nitrogen atom and at least one other heteroatom;
a second organic cation having a positive charge delocalized between a nitrogen atom and at least two other atoms; and
a third organic cation of formula (A):
wherein:
R
p
, R
q
and R
r
are each independently selected from a C
1-6
alkyl group;
s is 0, 1, 2 or 3; and
Ar is a C
6-12
aryl group or C
3-12
heteroaryl group.
一种调节磺化染料稳定性的方法,特别是其臭氧稳定性。该方法包括提供染料的盐,其中该盐包括至少一种有机阳离子,所述有机阳离子选自以下组合中的至少一种:第一种有机阳离子,其正电荷分散在氮原子和至少另一种杂原子之间;第二种有机阳离子,其正电荷分散在氮原子和至少两种其他原子之间;以及具有以下公式(A)的第三种有机阳离子:其中:Rp、Rq 和 Rr 分别独立选择自 C1-6 烷基基团;s 为 0、1、2 或 3;Ar 为 C6-12 芳基基团或 C3-12 杂芳基团。