Process for the production of negligibly dusty preparation

Details Process for the production of negligibly dusty preparation Process for the production of negligibly dusty preparation

1980-06-17

1981-10-20

Schofer, Joseph L.

Bleaching and dyeing; fluid treatment and chemical modification

Dry dye composition other than mere mixture of two or more...

8527, 8561, 8648, C09B 6706, C09B 6708, C09B 6724, C09B 6732

Patent

active

042958512

ABSTRACT:
Described is a process for the production of negligibly dusty preparations by spray drying an aqueous suspension containing at least one water-soluble dye or optical brightener and optionally further additives, characterized in that a dust-binding surface active agent is added to the aqueous suspension containing at least one adhesive as e.g. sorbitol and/or to the spray-dried product.

REFERENCES:
patent: 2819258 (1958-01-01), Schmid et al.
patent: 3086833 (1963-04-01), Streck
patent: 3560134 (1971-02-01), Streck
patent: 3894836 (1975-07-01), Frei
patent: 3967921 (1976-07-01), Haberli et al.
patent: 3967922 (1976-07-01), Wolf et al.
patent: 3971852 (1976-07-01), Brenner et al.
patent: 4042320 (1977-08-01), Becker et al.
patent: 4069013 (1978-01-01), Hett et al.
patent: 4134725 (1979-01-01), Buchel et al.
Derwent Belgian Patents Report No. 37/65, 661016 Oct. 1965.
Patterson, A. Textile Colorist Jul. 1951, pp. 462-463.
Chemical & Engineering News vol. 34 #5, 1/30/56 pp. 477-480.
Haekh's Chemical Dictionary, McGraw-Hill Book Co. N.Y. 1969 p. 31.

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