Coloring fluid-containing marking device made of biodegradable plastic resin
AssigneeThe Pilot Ink Co., Ltd.
InventorsMasaki Shibazaki, Mikiya Ido, Tohru Watanabe
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Abstract
A coloring fluid-containing marking device which sufficiently withstand practical use and, after use, its molded members can be biologically degraded in soil. The marking device comprises a coloring fluid container molded from an aliphatic polyester resin, and a coloring fluid containing a solvent mainly comprising an aliphatic hydrocarbon and/or an alicyclic hydrocarbon.
Claims7
A marking device comprising a container containing a coloring fluid therein, said container being a molded article of a biodegradable aliphatic polyester, and said coloring fluid comprising a colorant, a liquid solvent mainly comprising a member selected from the group consisting of an aliphatic hydrocarbon having the formula C.sub.n H.sub.2n+2, wherein n is a positive integer, an alicyclic hydrocarbon and a mixture thereof, and a resin soluble in said solvent.
Dependencies are inferred from the claim text.