Bayer Aktiengesellschaft

Fritz Lesszinsky

Klaus Walz

Winfried Joentgen

Torsten Groth

Udo W Hendricks

Hans-Albert Ehlert

Uwe Vogt

Martin Riegels

Josef Pfeiffer

Ferdinand Kummeler

Michael Pirkotsch

Bernd Konemund

Synthetic fibers and synthetic fiber textile materials finished with mineral oil finishes, silicone oil finishes or both can be simultaneously stripped of these finishes and dyed in one liquor comprising as essential ingredients

Simultaneous finish-stripping and dyeing of synthetic fibers

Improved compositions for dyeing or printing textile materials of natural or synthetic fibers or mixtures of the two comprise polyaspartic acid or a derivative thereof and, if appropriate, wetting agents, emulsifiers, leveling agents, dispersing agents, reducing agents, oxidizing agents, solubilizing agents, defoamers, reist agents, pH regulators, complexing agents or several of these as further components.

Composition for dyeing or printing textile materials

The aromatic formaldehyde condensation products, which are substantially colorless and water-soluble and contain sulphonate and/or carboxylate groups, are obtainable by adding agents which have a reducing action during and/or after the condensation reaction, and are suitable for the treatment of textiles and leather.

Aromatic condensation products

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Bergisch Gladbach, Germany

Fritz Lesszinsky