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 invention provides a method of detecting ozone expediently and with high sensitivity. The invention, therefore, is directed to an ozone indicator comprising (1) at least one color-change layer comprised of an ozone sensor ink and (2) at least one non-color change layer both formed on a substrate, said color-change and non-color-change layers being formed in such a manner that at least a part or the whole of at least one color-change layer can be exposed to an ozone-containing atmosphere when the ozone indicator is put to use. The invention is further directed to an ozone sensor ink containing an anthraquinone dye having at least one amino group selected from primary and secondary amino groups.

Abstract: There is provided a novel fluorescent crayon having the quality characteristics of high coloring power, good drawing quality, and good adhesion all in one, while overcoming the drawbacks of the conventional crayon, that is to say a fluorescent crayon comprising a solution type fluorescent coloring agent, a gelling agent, an organic solvent and a resin component.

Abstract: An ink composition for an oil marking pen is provided which comprises a coloring agent, an organic polar solvent, an oil-soluble resin and an organically modified silicone as principal components thereof. The organically modified silicone is selected from dimethyl silicone, alkyl-modified silicones, polyether-modified silicones such as a polyoxypropylene modified silicone and the like, and is contained in the ink composition in a proportion of 0.005 wt % to 10 wt %. The organic polar solvent is selected from alcohol solvents and glycol ether solvents. The oil-soluble resin is selected from ketone resins, phenol resins, xylene resins, rosin resins, styrene-organic acid copolymers and polyacrylates. The ink composition of the present invention is excellent in the ink film fixability when applied on a nonabsorbent surface such as a metal surface or a plastic surface, and suitable for oil marking pens.

Abstract: The present invention provides an aqueous pigment dispersion composition for electro-deposition color coating of an aluminum or aluminum alloy oxide film, the composition comprising an organic white pigment as an essential component thereof. The organic white pigment comprises large-diameter particles which are insoluble in a water-soluble organic liquid and/or water and exhibit a non-skinning property and a sufficient concealing power on an aluminum or aluminum alloy oxide film. More specifically, the organic white pigment particles preferably have an average particle diameters of at least 0.3 .mu.m and a reflective index of at least 1.4. The use of the aqueous pigment dispersion composition for electro-deposition coating ensures formation of a less lustrous, less transparent and highly weather-resistant coating film for coloration of an aluminum or aluminum alloy oxide film.

Abstract: A water base erasable ink composition for use in marking pens which comprises:(a) water as a solvent;(b) a coloring agent;(c) an aqueous emulsion of at least one nonvolatile oily material which is liquid at room temperatures and is selected from the group consisting of aliphatic carboxylic acid esters, higher hydrocarbons and higher alcohols in a dry amount of 1-50% by weight;(d) a cyclodextrin or its derivative in an amount of 0.1-20% by weight; and(e) a resin which is film-forming at room temperatures.The ink composition has improved storability over a long period of time.

Abstract: An ink composition according to the present invention comprises a pigment, a pigment dispersion resin, an non-aqueous ambient temperature non-volatile liquid removal agent and an non-aqueous ambient temperature volatile organic solvent, wherein the amount of the pigment dispersion resin relative to that of the pigment is within the range of from about 2 to about 10%. Methods of making the ink composition and methods of applying the ink composition to a writing board also are disclosed. The ink composition is superior in time-erasion performance independent of the object and/or surface of the writing board.

Abstract: 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.

Abstract: The present invention is an aqueous ink composition for ball-point pen comprising an aqueous ink mixture containing at least a pigment or colored polymer emulsion, a dispersant, a water-soluble organic solvent and water, and a compound of the general formula (1). Examples of such ink compositions include a sodium salt of polyoxyethylene alkyl ether phosphate monoester a sodium salt of polyoxyethylene alkyl ether phosphate diester, a triethanolamine salt of polyoxyethylene alkylphenyl ether phosphate monoester, triethanolamine salt of polyoxyethylene alkylphenyl ether phosphate diester. The aqueous ink composition provides a lubricity effect of rotating a ball smoothly when it is used for a ball-point pen.

Abstract: An aqueous ball point ink composition comprising a key aqueous ball point ink composition comprising coloring materials consisting of (pigment and pigment dispersant) and/or precolored emulsion resin, water-soluble organic solvent, pseudoplastic imparting agent and water and cross-linked polyacrylate salt in a proportion of about 0.05-0.5% by weight based on the amount of said key aqueous ball point ink composition.

Abstract: A fluorescent ink composition which comprises:(a) an organic solvent which comprises propylene glycol monomethyl ether as a solvent:(b) a solution type fluorescent pigment dissolved in the organic solvent; and(c) a ketone resin.

Abstract: An aqueous ink is provided which comprises a coloring agent, a water-soluble solvent and water, where the amount of gas dissolved therein is less than the amount of gas present at the situation level. Where the aqueous ink composition is used for a writing instrument of ink-free type having a confined ink chamber structure, the writing instrument rarely causes ink leakage and writing defects such as uneven ink density and skips in a drawn line, even if it is allowed to stand at a high temperature or to stand for a long time.

Abstract: A water base erasable ink composition which comprises:(a) water as a solvent in amounts of 50-90% by weight;(b) a coloring agent dispersed or dissolved in water in amounts of 1-30% by weight;(c) an aqueous emulsion of at least one nonvolatile or only slightly volatile compound which is liquid at room temperatures and is selected from the group consisting of aliphatic carboxylic acid esters, higher hydrocarbons and higher alcohols in dry amounts of 1-20% by weight; and(d) a water soluble resin or a water-solubilized resin which is film forming at room temperatures in amounts of 0.1-15% by weight. The water soluble resin or water-solubilized resin may be displaced by an aqueous emulsion or a hydrosol of water insoluble resins.

Abstract: The present invention discloses a pigment dispersion composition for depositing a multiplicity of pores existing in anodic oxide films formed on a surface of an aluminum or aluminum alloy material by way of electrophoresis for coloration, the pores being preliminarily enlarged to have a diameter of 50 nm to 250 nm. The pigment dispersion composition comprises water, a pigment dispersant and a pigment. The pigment dispersed in the pigment dispersion composition has a median particle size of not greater than 250 nm in a particle-size distribution thereof with not greater than 30% of the pigment particles being impassable through a sieve having a mesh size of 300 nm. The pigment dispersion composition is useful for coloration of the anodic oxide films, and has excellent repeated-coloration characteristics.

Abstract: A water base erasable ink composition which comprises:(a) water as a solvent in amounts of 50-90% by weight;(b) a coloring agent dispersed or dissolved in water in amounts of 1-30% by weight;(c) an aqueous emulsion of at least one nonvolatile or only slightly volatile compound which is liquid at room temperatures and is selected from the group consisting of aliphatic carboxylic acid esters, higher hydrocarbons and higher alcohols in dry amounts of 1-20% by weight; and(d) a water soluble resin or a water-solubilized resin which is film forming at room temperatures in amounts of 0.1-15% by weight.The water soluble resin or water-solubilized resin may be displaced by an aqueous emulsion or a hydrosol of water insoluble resins.

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: An aqueous ink composition is provided which includes an aqueous mixture containing at least a coloring agent, a pigment dispersant, a water-soluble organic solvent and water, and an organic white pigment of an alkylene-bis-melamine derivative represented by the general formula (1): ##STR1## wherein R represents a hydrogen atom, a lower alkyl group having 1 to 4 carbon atoms or an alicyclic group; R1, R2, R3 and R4 are the same or different, each representing a hydrogen atom or a lower alkyl group having 1 to 4 carbon atoms; R1 and R2, or R3 and R4 may form a heterocyclic group together with a nitrogen atom; and X represents a lower alkylene group having 2 to 3 carbon atoms. The aqueous ink composition is particularly useful for writing instruments of direct ink supply type and of wick type.

Abstract: A water base dye ink composition which comprises:(i) water as a solvent;(ii) a carboxyl group containing styrenic resin having an average weight of 1500-30000 and an acid value of 150-300, in an amount of 2-20% by weight;(iii) at least one anionic dye selected from the group consisting of:(a) a metal complex azo acid dye;(b) C.I. direct black; and(c) C.I. acid yellow 110, C.I. acid yellow 127, C.I. direct yellow 100, C.I. 20215, C.I. 20216, C.I. 20230, C.I. 23266, C.I. 23635, C.I. 40002, C.I. 40215, C.I. 42655 and C.I. 42660, in an amount of 0.01-10% by weight; and(iv) an alkali which is volatile at normal temperatures in such an amount as put the ink composition at a pH in the range of 6 to 9.5.

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: An aqueous ink composition for ball-point pen is provided which includes an aqueous ink mixture containing at least a coloring agent, a dispersant, a water-soluble organic solvent and water, and a compound of the general formula (1): ##STR1## wherein R1 and R2 represent OH and/or HO(CH.sub.2 CH.sub.2 O)n and/or ##STR2## where Y is CmH2m+1 (m is an integer of not larger than 4); and X represents an alkali metal salt, amine salt or alkanolamine salt. The aqueous ink composition is excellent in lubricity, wear resistance of ball seat, writing touch and long-term stability, and is less liable to feather on paper.