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Der Färbemechanismus neutralziehender Metallkomplexfarbstoffe: III. Adsorptionsisothermen auf Naturseide und Wolle. 4. Mitteilung über textilchemische Untersuchungen

✍ Scribed by G. Back; Hch. Zollinger

Publisher
John Wiley and Sons
Year
1959
Tongue
German
Weight
318 KB
Volume
42
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Adsorption isotherms of two neutral dyeing 1:2 chromium complex dyes without ionized substituents on wool, acetylated wool and silk have been determined.

In principle, the dyeing mechanism of these dyes on these fibres shows the same characteristics as on polyamides investigated in former papers:two processes, namely salt formation with basic groups of the fibre and a solution mechanism, procecd simultaneously. On wool, the solution mechanism is of minor importance.

The affinity of one of these dyes for wool via the salt binding mechanism has been calculated. It is lower than its affinity for nylon 66.

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