Free-flowable powder lithographic fountain solution concentrate

Details Free-flowable powder lithographic fountain solution concentrate Free-flowable powder lithographic fountain solution concentrate

1997-06-10

1999-04-27

Koslow, Melissa

Compositions: coating or plastic

Coating or plastic compositions

Coating repellent

101451, C09K 300

Patent

active

058976930

ABSTRACT:
A free-flowing powder fountain solution concentrate for use in lithographic printing is provided which comprises at least one of a solid ammonium or alkali metal phosphate, a solid polysaccharide, and a preservative The powder concentrate's components have uniformly high water dissolution rate as a blend, producing liquid concentrates in excess of 0.7 lbs/gallon of water for ease of use without the need for constant recirculation during storage. A process for preparing a liquid fountain solution concentrate in excess of 0.7 lbs/gallon of water is also provided whereby a premeasured quantity of the powder concentrate is packaged in a moisture proof package to preserve the powder's free flowability prior to use, and prevent exposure to irritating chemical dust during use.

REFERENCES:
patent: 4187029 (1980-02-01), Canale et al.
patent: 4234443 (1980-11-01), Canale et al.
patent: 4340509 (1982-07-01), Canale et al.
patent: 4374036 (1983-02-01), Canale et al.
patent: 5282892 (1994-02-01), Laufs

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