Abstract: The glittering ink composition of the present invention contains a glass flake pigment, a water-soluble resin, a water-soluble organic solvent and water as essential ingredients. The content of the glass flake pigment is 0.01-40% by weight relative to the total amount of the ink composition. Moreover, the ink composition contains a synthetic resin emulsion as a binder component for fixing the glass flake pigment to a handwriting or a coated film in 0.01-40% by weight in solids relative to the total amount of the ink composition. The synthetic resin emulsion has an anionic property or a nonionic property and its minimum film forming temperature is not higher than 20° C.

Abstract: An erasable ink composition comprising water, a water-soluble organic solvent, and the following colorant, colorless resin particles and shear-thinning, viscosity-adjustment agent, characterized in that the colorless resin particles have a mean particle diameter smaller than that of the colorant and are contained in an amount larger than that of the colorant: (a) 3 to wt % (based on the whole ink) of colorless resin particles which are made of at least one resin selected from among acrylic resins, urethane resins, silicone resins and melamine resins and have a mean particle diameter of 0.10 to 10 ?m, (b) 1 to 40 wt % (based on the whole ink) of a colorant having a mean particle diameter of 2 ?m or above, and (c) 0.01 to 4 wt % (based on the whole ink) of a shear thinning, viscosity-adjustment agent.

Abstract: An aqueous glittering ink composition whose viscosity ranges from about 1,000 to about 10,000 mPa·s, (measured by an ELD-type viscometer: 3° R 14 cone, 0.5 rpm, at the temperature of 20° C.) comprising a. aluminum powder pigments whose median diameter is not less than about 15 ?m compounded with oleic acid and/or stearic acid; b. synthetic resin emulsions selected from acryl based synthetic resin emulsions, styrene-acryl based synthetic resin emulsions and vinyl acetate based synthetic resin emulsions; c. polysaccharide selected from whelan gum, succinoglycan, and rhamsan gum; d. water-soluble organic solvent; and e. colored pigment.

Abstract: The glittering ink composition of the present invention contains a glass flake pigment, a water-soluble resin, a water-soluble organic solvent and water as essential ingredients. The content of the glass flake pigment is 0.01-40% by weight relative to the total amount of the ink composition. Moreover, the ink composition contains a synthetic resin emulsion as a binder component for fixing the glass flake pigment to a handwriting or a coated film in 0.01-40% by weight in solids relative to the total amount of the ink composition. The synthetic resin emulsion has an anionic property or a nonionic property and its minimum film forming temperature is not higher than 20° C.

Abstract: An erasable ink composition comprising water, a water-soluble organic solvent, and the following colorant, colorless resin particles and shear-thinning, viscosity-adjustment agent, characterized in that the colorless resin particles have a mean particle diameter smaller than that of the colorant and are contained in an amount larger than that of the colorant: (a) 3 to wt % (based on the whole ink) of colorless resin particles which are made of at least one resin selected from among acrylic resins, urethane resins, silicone resins and melamine resins and have a mean particle diameter of 0.10 to 10 ?m, (b) 1 to 40 wt % (based on the whole ink) of a colorant having a mean particle diameter of 2 ?m or above, and (c) 0.01 to 4 wt % (based on the whole ink) of a shear thinning, viscosity-adjustment agent.

Abstract: The glittering ink of the present invention contacts scaly glittering particles, a water-soluble resin, a water-soluble organic solvent, colorant and water. The said scaly glittering particles have a median diameter of at least 10 &mgr;m, a ratio of smoothness on the particle surface to a median diameter of not greater than 0.011, and a surface coating ratio of the said colorant in a written mark of not greater than 80% in a state of a dried written mark. In addition, the aqueous glittering ink of the present invention has the thixotropy index (T.I. value) of not less than 1.3, represented by the ratio of V0.5 to V1.0 (V0.5/V1.0), wherein V0.5 is the viscosity with the rotation speed of 0.5 rpm and V1.0 is the viscosity with the rotation speed of 1.0 rpm when the ink is measured by an ELD-typed viscometer (3° R14 cone, at the temperature of 20° C.) and the ink has the V0.5, the viscosity with the rotation speed of 0.5 rpm, of 1000˜15000 mPa·s.

Abstract: The glittering ink composition of the present invention contains a glass flake pigment, a water-soluble resin, a water-soluble organic solvent and water as essential ingredients. The content of the glass flake pigment is 0.01-40% by weight relative to the total amount of the ink composition. Moreover, the ink composition contains a synthetic resin emulsion as a binder component for fixing the glass flake pigment to a handwriting or a coated film in 0.01-40% by weight in solids relative to the total amount of the ink composition. The synthetic resin emulsion has an anionic property or a nonionic property and its minimum film forming temperature is not higher than 20° C.

Abstract: The invention provides a water-based metallic ink composition comprising a metallic powder pigment and a solvent characterized by its further comprising a polyvinyl alcohol. This composition provides a record consisting of a central line derived from a formulated colorant or the color of the writing substrate and contour lines derived from the metallic powder pigment and bordering on both sides of the central line.

Abstract: The object of the present invention is to provide a double-color ink which is capable of producing a double-color effect stably for a long period of time. The present invention relates to a double-color ink comprising (1) metal powder pigments, (2) water, (3) at least one water-soluble organic solvent selected from the group consisting of alcohols, glycols and glycol ethers having a branched hydrophobic group(s) and (4) at least one water-soluble dye selected from the group consisting of anthraquinone dyes, carbonium dyes and metal complex dyes; and a writing utensil using the same as an ink.

Abstract: The main object is to provide a water-based ink composition which is not only superior in hiding power but also has satisfactory writing properties. This invention relates to a water-based ink composition comprising a powder consisting of inorganic particles comprising at least one of aluminum oxide, titanium dioxide and boron nitride and water.

Abstract: The main object is to provide a water-based ink composition which is not only superior in hiding power but also has satisfactory writing properties. This invention relates to a water-based ink composition comprising a powder consisting of inorganic particles comprising at least one of aluminum oxide, titanium dioxide and boron nitride and water.

Abstract: The invention is directed to a scratch ink composition improved in erasability, hiding power and ease of use. The invention relates to a scratch ink composition comprising a flaky pigment having a particle size distribution (as determined with a laser diffraction particle size distribution analyzer) such that the integral fraction of particles not larger than 10 &mgr;m in diameter is not more than 30%, a resin component, and a solvent.

Abstract: The glittering ink composition of the present invention contains a glass flake pigment, a water-soluble resin, a water-soluble organic solvent and water as essential ingredients. The content of the glass flake pigment is 0.01-40% by weight relative to the total amount of the ink composition. Moreover, the ink composition contains a synthetic resin emulsion as a binder component for fixing the glass flake pigment to a handwriting or a coated film in 0.01-40% by weight in solids relative to the total amount of the ink composition. The synthetic resin emulsion has an anionic property or a nonionic property and its minimum film forming temperature is not higher than 20° C.

Abstract: The present invention provides the aqueous glittering ink composition whose viscosity ranges from about 1,000 to about 10,000 mPa·s, (measured by an ELD-type viscometer: 3° R 14 cone, 0.5 rpm, at the temperature of 20° C.

Abstract: The invention provides a water-based metallic ink composition comprising a metallic powder pigment and a solvent characterized by its further comprising a polyvinyl alcohol. This composition provides a record consisting of a central line derived from a formulated colorant or the color of the writing substrate and contour lines derived from the metallic powder pigment and bordering on both sides of the central line.

Abstract: The present invention relates to an aqueous metallic ink composition having utility in ink for writing instruments, for printing, for coating, and the like. The composition includes a metallic powder pigment, a colorant, water, and a water-soluble organic solvent, and further includes a natural polysaccharide and at least one compound selected from cellulose derivatives, a cyclodextrin, cyclodextrin derivatives, a water-soluble soy polysaccharide, and water-soluble soy polysaccharide derivatives. In case that an anionic polymer is added as a pigment dispersant into the aqueous metallic pigment composition, the pH value is adjusted to 8.0-10.

Abstract: The present invention provides a transfer sheet comprising a releasable base and, as disposed successively thereon, at least one picture printing layer, a UV-curing adhesive layer and a release layer and a transfer process employing a transfer sheet which comprises peeling off the releasable base from the sheet, transferring the printing layer and UV-curing adhesive layer as a unit to a substrate and curing the adhesive layer by UV irradiation.

Abstract: A thermochromic composition which comprises(1) an electron-donating chromogenic organic compound,(2) an electron-accepting compound,(3) at least one desensitizer selected from among hydrazide compounds, and(4) a thermochromic transition temperature modifier.

Abstract: This invention provides the following production process.A microencapsulation process comprising encapsulating a hydrophobic core material with a melamine-formaldehyde polycondensate resin in the presence of an anionic macromolecular electrolyte system, characterized in that, as said anionic macromolecular electrolyte system,(A) vinyltoluenesulfonic acid-maleic anhydride copolymer and(B) methyl vinyl ether-maleic anhydride copolymer are used in a weight ratio A:B of 50:50.about.90:10.

Abstract: The invention provides the following dyeing method: A method of dyeing a cellulosic textile article characterized by immersing the article in an aqueous dispersion containing a cation-treated coloring agent in the first place and, then, immersing it in an aqueous solution or dispersion of an anionic compound.