METHOD FOR IMPROVING UNIFORMITY IN DYEING OF VISCOSE SILK

The rayon manufactured according to this method is intended for use in the textile and knitting industry. The effect of levelling of the tinctorial property is improved with the coefficient of variation of dyeing at less than or about 1%. Under this method, the rayon is treated freshly after mouldin...

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Bibliographische Detailangaben
Hauptverfasser:	ANGELOV, MIROSLAV A, DECHEVA, ROZA I, SIMEONOV, NIKOLAJ P
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING TEXTILES
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Beschreibung
Zusammenfassung:	The rayon manufactured according to this method is intended for use in the textile and knitting industry. The effect of levelling of the tinctorial property is improved with the coefficient of variation of dyeing at less than or about 1%. Under this method, the rayon is treated freshly after moulding with white or colourless substances, which bind with it in the same fashion as direct dyestuffs. It can additionally be treated with a separate solution prior to the process of adding of avivage, or along with this process, with the substances being added to the avivage composition. Substances used in the process are an optical bleacher with a solution concentration of 0.01 to 5 per litre and a fiber-affined levelling agent at a concentration of 1.5 to 5 per litre. The treatment is conducted with duration of 24 min at 50 degrees C.