Method of preparation of inks

Details Method of preparation of inks Method of preparation of inks

1998-06-22

2000-09-12

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Marking

106 3161, 106 3162, 106 3163, 106 3166, 106 3186, 106 3188, 106 319, 106460, 106476, 106477, 106500, 106502, 106504, C09D 1102

Patent

active

061172251

ABSTRACT:
A process of producing a non-conductive ink formed from colorant particles and a non-conductive carrier liquid where the colorant particles are inherently of a low electrical resistivity. The process includes the steps of applying to the surface of the colorant particles a material with a high electrical resistivity to give the particle a higher surface resistivity and blending the treated colorant particle with the non-conductive carrier to form the non-conductive ink. The insulative material may be selected from polymers, waxes, organic pigments and dye stuffs and the colorant may be carbon black, magnetic iron oxide or metallic powder.

REFERENCES:
patent: 5300146 (1994-04-01), Jonas et al.
patent: 5336309 (1994-08-01), Noguchi et al.
patent: 5344487 (1994-09-01), Whalen-Shaw
patent: 5762694 (1998-06-01), Yokoi et al.
patent: 5795376 (1998-08-01), Ide
patent: 5800601 (1998-09-01), Zou et al.

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