TANNING AGENTS OF THE AZO SERIES, THEIR PREPARATION AND THEIR USE IN THE SIMULTANEOUS TANNING AND DYEING OF LEATHER, AND PREPARATIONS CONTAINING THEM

Tanning dyestuffs of the azo series obtained by coupling aromatic compounds which contain at least one diazo group with water-soluble tanning agents prepared by condensation of a) formaldehyde or formaldehyde-donating compounds b) an optionally sulphonated aryl ether or optionally sulphonated naphth...

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Bibliographische Detailangaben
Hauptverfasser:	WESTPHAL, JOCHEN, ZINZ, BRUNO, TRAUBEL, HARRO
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ADHESIVES APPARATUS THEREFOR CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING CHEMISTRY COMPOSITIONS FOR TANNING DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM DYEING OR PRINTING TEXTILES DYES FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR HIDES LAKES LAUNDERING LEATHER METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES PAINTS PELTS POLISHES SKINS TEXTILES TREATMENT OF TEXTILES OR THE LIKE
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Beschreibung
Zusammenfassung:	Tanning dyestuffs of the azo series obtained by coupling aromatic compounds which contain at least one diazo group with water-soluble tanning agents prepared by condensation of a) formaldehyde or formaldehyde-donating compounds b) an optionally sulphonated aryl ether or optionally sulphonated naphthalene or optionally sulphonated terphenyl or an optionally sulphonated phenol-urea mixture or mixtures thereof or with a dihydroxydiaryl sulphone and c) a sulphonating agent if the compounds mentioned under b) are sulpho-devoid, and if desired a subsequent reaction with heavy metal salts, are suitable for simultaneous tanning and dyeing.