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AssigneeMitsubishi Pencil Company, Limited
InventorsHitoshi Nakamura, Kyoko Kobayashi, Makoto Ono, Kei Omoto, Tamotsu Eguchi
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In order to inhibit titanium oxide from settling down over a long period of time and secure a leveling property of a coating fluid including an ink composition, provided is a coating fluid for a fluid applicator, comprising at least titanium oxide, a resin and an organic solvent, wherein an additive comprising an N-acylamino acid derivative whose fundamental frame is at least one selected from N-acylamino acid amides and N-acylamino acid esters is added in an amount of 0.6 to 4.5% by weight based on the total amount of the ink composition, and a content of the resin described above is 1.5 to 11 parts by weight based on a content of 1 part by weight of the additive described above.
A coating fluid characterized by that in an ink composition comprising at least titanium oxide, a resin and an organic solvent, an additive comprising an N-acylamino acid derivative whose fundamental frame is at least one selected from N-acylamino acid amides and N-acylamino acid esters is added in an amount of 0.6 to 4.5% by weight based on the total amount of the ink composition and that a content of the resin described above is 1.5 to 11 parts by weight based on a content of 1 part by weight of the additive described above.
A coating fluid used for a fluid applicator which is equipped with a ballpoint pen tip at a point and a coating fluid reservoir for storing the coating fluid at a rear, the tip of which comprises a tip main body having a ball receiving chamber for allowing the coating fluid to flow in and having a front end aperture part for discharging the coating fluid at a point part of the ball receiving chamber, a ball received in the ball receiving chamber in the above tip main body, partially protruding from the front end aperture part described above and airtightly closing the aperture part, a spring applying pressure on the back face of the above ball to support it from a rear and a ball receiving seat controlling a moving distance of the ball toward a rear and in which the moving distance of the ball toward the rear is 0.06 to 0.2 mm, wherein the above coating fluid comprises at least titanium oxide, a resin and an organic solvent;
A fluid applicator which is equipped with a ballpoint pen tip at a point and a coating fluid reservoir for storing a coating fluid at a rear, the tip of which comprises a tip main body having a ball receiving chamber for allowing the coating fluid to flow in and having a front end aperture part for discharging the coating fluid at a point part of the ball receiving chamber, a ball received in the ball receiving chamber in the above tip main body, partially protruding from the front end aperture part described above and airtightly closing the aperture part, a spring applying pressure on the back face of the above ball to support the ball from a rear and a ball receiving seat controlling a moving distance of the ball toward a rear and in which the moving distance of the ball toward the rear is 0.06 to 0.2 mm, wherein the above coating fluid comprises at least titanium oxide, a resin and an organic solvent;
A fluid applicator which is equipped with a coating fluid reservoir mounted in a barrel main body, in which the coating fluid reservoir is filled with a coating fluid containing at least an organic solvent selected from the following A group and a colorant and having a shearing thinning property, which is equipped with a ballpoint pen tip having a discharge-controlling mechanism at a point and in which a point part of the above tip is sealed with a resin coating film formed from a hot melt adhesive, wherein the resin coating film is a coating film formed from polymerized fatty acid-modified polyamide represented by the following Formula (III), and the above coating film has a pulling strength of 1 to 10N under the condition of 25° C. and 60 RH % measured by means of a push-pull tester;
Dependencies are inferred from the claim text.