Flocculant purification of ink

Details Flocculant purification of ink Flocculant purification of ink

1987-10-09

1989-09-19

Higel, Floyd D.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 23, 534793, 534836, 534872, 534887, 540140, C09B 6754, C09D 1100, C09D 1102, C09D 1116

Patent

active

048677892

ABSTRACT:
A method for purifying a dye solution is provided. The method comprises the steps of dissolving an impure dye in a solvent. A flocculant is then added to the dye solution in order to flocculate the imprity so that the impurity may then be removed from the solution. A method for producing on ink utilizing the purification procedure is also provided.

REFERENCES:
patent: 2350523 (1944-06-01), O'Neal
patent: 2354588 (1944-07-01), Gainey
patent: 2816114 (1957-12-01), Ehrich et al.
patent: 2836588 (1958-05-01), Fearon
patent: 4340389 (1982-07-01), Nonn et al.
patent: 4541831 (1985-09-01), Gunther et al.

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