Textile dyeing process

A textile dyeing process is claimed, in which the absorption and fixing of the dye takes place mainly at constant temp., using the extraction method with a time-dependent shift in the pH of the dye bath from a reaction-inhibiting initial value, and readjusting the used bath to the same initial pH (o...

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Bibliographische Detailangaben
Hauptverfasser:	BOHL, ALEXANDER., 72770 BETZINGEN, DE, GRUENINGER, GUNTER, .., 72820 SONNENBUEHL, DE, WEISS, HEIDRUN., 73230 KIRCHHEIM UNTER TECK, DE, KOSCHWITZ, ANJA., 72250 FREUDENSTADT, DE, GAMMERDINGER, DIETER., 72070 TUEBINGEN, DE, KORTH, ASTRID., 22761 HAMBURG, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM DYEING OR PRINTING TEXTILES FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR LAUNDERING TEXTILES TREATMENT OF TEXTILES OR THE LIKE
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Beschreibung
Zusammenfassung:	A textile dyeing process is claimed, in which the absorption and fixing of the dye takes place mainly at constant temp., using the extraction method with a time-dependent shift in the pH of the dye bath from a reaction-inhibiting initial value, and readjusting the used bath to the same initial pH (or a new value) so that the bath can be re-used. The time-dependent pH shift and readjustment of the pH of the used bath are both produced by contacting the bath with a controlled amt. of ion exchange material (I), and the salt(s) (II) required for prodn. of the necessary acid(s) or alkali(s) by ion exchange is/are added to the bath before the start.