Cationic phthalocyanine dyes

US4393005A · kind A · utility

Assignee

• BASF SE

Inventors

• Manfred Patsch · Monsheim, DE
• Manfred Ruske · Ludwigshafen, DE
• Erwin Hahn · Heidelberg, DE

Key dates

• Filing date: Mar 15, 1982
• Grant date: Jul 12, 1983
• Expiry date: Mar 15, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B47/32
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Cationic phthalocyanine dyes of the formula ##STR1## where Pc is an (m+n+p)-valent phthalocyanine radical, R.sup.1 is H or alkyl, R.sup.2 and R.sup.3 independently of one another are alkyl, hydroxyalkyl, cycloalkyl, benzyl, phenyl or tolyl, or ##STR2## is pyrrolidinyl, imidazolyl, 2-ethyl-4-methylimidazolyl, morpholinyl, piperazinyl or N'-alkylpiperazinyl, or is ##STR3## R.sup.4 is H or methyl, R.sup.5 is alkyl, hydroxyalkyl or benzyl, X.sup..sym. is one equivalent of an anion, M.sup..crclbar. is one equivalent of a cation, z is 1 or 2, p is 0 or 1, m is 0 or 1 and n is from 1 to 4, and 1<(m+n)<4, are readily or highly soluble in water and very substantive on paper, and accordingly are particularly suitable for dyeing and printing paper. Paper dyed with (I) has very good bleeding fastness, and a colorless effluent is obtained when paper is wet-end dyed.