Sakura Color Products Corporation

Yasuji Okuda

Hiroshi Inoue

Wataru Yokono

Kiyotaka Imagawa

Hiroaki Ueda

Masakazu Yokoi

Fumio Miyata

Shizuo Maruyama

Hirofumi Yamasaki

Hiromasa Sugimoto

An ink composition according to the present invention includes (1) a leafing type fine metal powder having a median particle size of from about 4 .mu.m to about 11 .mu.m, the powder being present in an amount, relative to the total amount of the ink composition, within the range of from about 10% to about 38% by weight, the powder being selected from a copper alloy, aluminum, copper, or zinc whose surface is treated by a saturated fatty acid having 16 to 22 carbon atoms, or salts thereof. The ink composition further includes (2) a petroleum resin having iodine value of not more than 30 (g/100 g), whereby the resin is present in an amount, relative to the total amount of the ink composition, within the range of from about 10% to about 30% by weight; (3) at least two kinds of hydrocarbon solvents, whereby the solvents are present in an amount, relative to the total amount of the ink composition, within the range of from about 32% to about 80% by weight.

Ink composition for marking pen

A water base ink composition for writing on neon boards which comprises:

Water base ink compositions for neon boards

An aqueous pigment ink composition for writing utensils is provided, which is capable of providing handwritings with good opacifying properties and exhibits little difference in whiteness between handwritings obtained immediately after writing and after drying. When the composition is applied to the inner stick type of writing utensils, an ink having good opacifying properties is passed out. The ink composition comprises, at least, an emulsion of styrene resin-based doughnut-shaped flat particles as a white opacifying agent.

Aqueous pigment ink composition for writing utensils

A water base pigment ink composition for use in marking pens which contain an absorbent ink reservoir and a pen tip connected thereto, the ink composition comprising:

Water base pigment ink compositions for use in marking pens

This invention provides a solid coating composition comprising:

Solid coating compositions

An ink composition which comprises an alicyclic hydrocarbon solvent having dissolved therein a resinous binder and a modified dye, said modified dye being at least one species selected from the group consisting of a reaction product obtained by reacting a dye having at least one group of --CO.sub.2 M and --SO.sub.3 M in the molecule wherein M is an alkali metal with an organic ammonium compound and a reaction product obtained by reacting a basic dye with an acid compound.

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Osaka, Japan

Yasuji Okuda