| 摘要 |
Optical brighteners for cellulose, polyamide and protein fibres, suitable for use in acid wash baths, and for paper e.g. incorporated to pulp, consist of cpds. where B is NH- ; A is - ; W is morpholine 2,6-dimethylmorpholine, N-benzyl-N-hydroxy lower alkylamine, N-hydroxyethyl-N-lower alkyl amine, N-hydroxy-lower alkylamine, N-hydroxy-lower-alkyl-N-cyclohexylamine gp.; X is a di-lower-alkylamine, Z is 1-4C alkoxy or -SO3Y, and Y is H, alkali(ne earth) metal or quaternary NH4 cation) (I). |
