申请人:——
公开号:US20020119899A1
公开(公告)日:2002-08-29
The present invention provides a process for inhibiting the re-absorption of migrating dyes in the wash liquor, comprising introducing into a wash liquor containing a peroxide-containing detergent, from 0.5 to 150, preferably from 1.5 to 75, especially from 7.5 to 40 mg, per liter of wash liquor, of one or more compounds having the formula:
1
in which n is 1, 2 or 3; A is an anion;
Y is —(CH
2
)
m
in which m is an integer ranging from 1 to 8; —(CH
2
)
p
—CH(R
1
)— in which p is an integer ranging from 1 to 7 and R
1
is linear or branched C
1
-C
4
-alkyl, preferably methyl; —CX═CX— in which X is cyano, linear or branched C
1
-C
8
-alkyl or di(linear or branched C
1
-C
8
-alkyl)-amino;
—(CH
2
)
q
—NR
1
—(CH
2
)
q
— in which R
1
has its previous significance and q is 1, 2, 3 or 4; or a 1,2-cyclohexylene residue having the formula:
2
R is cyano; halogen; hydroxy; OR
1
in which R
1
has its previous significance; CO
2
R
2
in which R
2
is hydrogen or linear or branched C
1
-C
4
-alkyl; nitro; linear or branched C
1
-C
8
-alkyl; di-(C
1
-C
12
alkyl)amino; NR
3
R
4
in which R
3
and R
4
are the same or different and each is linear or branched C
1
-C
12
-alkyl; or —N
⊕
R
1
R
3
R
4
in which R
1
, R
3
and R
4
have their previous significance.
本发明提供了一种抑制洗涤液中迁移染料再吸收的方法,包括将式1中的一种或多种化合物引入含有过氧化物的洗涤液中,每升洗涤液中含有0.5至150毫克,优选为1.5至75毫克,特别优选为7.5至40毫克,其中式1中,n为1、2或3;A为阴离子;Y为-(CH2)min,其中m为1至8的整数;-(CH2)p-CH(R1)-,其中p为1至7的整数,R1为线性或支链的C1-C4烷基,优选为甲基;-CX═CX-,其中X为氰基,线性或支链的C1-C8烷基或二(线性或支链的C1-C8烷基)氨基;-(CH2)q-NR1-(CH2)q-,其中R1具有其前述意义,q为1、2、3或4;或式2中的1,2-环己基残基,其中R为氰基、卤素、羟基、OR1,其中R1具有其前述意义;CO2R2,其中R2为氢或线性或支链的C1-C4烷基;硝基;线性或支链的C1-C8烷基;二-(C1-C12烷基)氨基;NR3R4,其中R3和R4相同或不同,且均为线性或支链的C1-C12烷基;或—N⊕R1R3R4,其中R1、R3和R4具有其前述意义。