Compositions: coating or plastic – Coating or plastic compositions – Marking
Patent
1999-08-26
2000-05-16
Klemanski, Helene
Compositions: coating or plastic
Coating or plastic compositions
Marking
106 3163, 106 3164, 106 3165, 106 319, 106 3195, C09D 1102
Patent
active
060631767
ABSTRACT:
A two-part metallic ink composition for intaglio printing is provided which produces bright and shiny ink deposits when printed. The two parts of the ink are stored separately from each other and mixed together either immediately or within a predetermined time period prior to use. The first part comprises varnish in the amount of 60-85%, wax in the amount of 6-15% and solvent in the amount of 6-25%, by weight. These three constituents of the first part are heated together until the wax has just completely melted, stirred and cooled to room temperature. The resultant mixture, which appears physically as a gelled varnish (vehicle), advantageously permits the formulation of a bright metallic intaglio ink without the use of an extender. The second part comprises metallic pigment. About 1 part by weight of the first part and about 0.5-2.0 parts by weight of the second part are mixed together to form the composition. Preferably, the metallic pigment is pre-wetted with about 2-4% solvent, so as to form a bread crumb-type consistency, before it is mixed with the first part to prevent dusting (i.e. the escape of pigment into the environment) and to assist in the mixing of the two components. The first part may comprise a drier in the amount of 0.4-2.0% by weight. The particle size of the pigment is preferably less than about 18 microns. To produce the brightest reflective appearance the printed ink composition deposit is heated, immediately following printing, to about 65-75.degree. C. for a period of about one second.
REFERENCES:
patent: 4490177 (1984-12-01), Shioi et al.
patent: 5445671 (1995-08-01), Herget et al.
patent: 5474603 (1995-12-01), Miyashita et al.
patent: 5849072 (1998-12-01), Sommer et al.
Cassan Lynn S.
Klemanski Helene
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