Process for spray-drying readily water-soluble dyes and fluoresc

Details Process for spray-drying readily water-soluble dyes and fluoresc Process for spray-drying readily water-soluble dyes and fluoresc

1985-01-22

1986-06-10

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Spray-dyeing process

8436, 8648, 8654, 8657, 8673, 8676, 8681, 8919, D06P 500, C09B 6706, D06L 312

Patent

active

045940754

ABSTRACT:
A process is described for spray-drying readily water-soluble dyes and fluorescent brighteners from a saturated aqueous solution which contains undissolved dye or fluorescent brightener in a ratio between dissolved and undissolved matter of 1:9 to 9:1.
The free-flowing dye or brightener granulates obtained in this process are distinguished by high bulk density, abrasion resistance and dimensional stability.

REFERENCES:
patent: 4285692 (1981-08-01), Schiwy et al.
patent: 4453943 (1984-06-01), Balliello
patent: 4507126 (1985-03-01), Balliello
F. Rosenbloom "Spray Drying Improves Processing of Colors for Dyeing", A D R, Aug. 14, 1967, pp. 612 and 613.

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