Abstract: An aqueous ink jet ink comprises water, a colorant selected from a dye or a pigment, and a diol derivative according to the following formula (Formula I):HO--(CHX--CHYO).sub.j --(CH.sub.2).sub.a --G--(CH.sub.2).sub.b --(OCHW--CHZ).sub.k --OH (I)wherein G is independently selected from the group consisting of SO.sub.2, SO, and CO; X, Y, W, and Z are independently selected from the group consisting of H, CH.sub.3 and C.sub.n H.sub.2n+1 where n equals 2 to about 20; j and k independently equal from 0 to about 100; and a and b independently equal from 1 to about 20.

Abstract: The present invention relates to an ink for ink-jetting containing at least a coloring material, water soluble organic solvent and water, comprising:0.01-5.0% by weight of alkylene oxide adduct of acetylene glycol, represented by the formula (A): ##STR1## (in which R.sub.1 -R.sub.4, are respectively an lower alkyl group; l is an integer of 2 or 3; and m and n are respectively an integer of 1 or more);6.0-14.0% by weight of a compound selected from the group consisting of a polyalcohol having three hydroxy groups, alkylene glycols represented by the formula (B):HO(C.sub.x H.sub.2x O).sub.y H (B)(in which x and y is respectively an integer, provided that x is 2 or more and x and y have a relation of 2.ltoreq.X.times.y.ltoreq.6), and a mixture thereof;4.0-10.0% by weight of a lower alkyl ether of alkylene glycol represented by the formula (C):HO(C.sub.p H.sub.2p O).sub.q R (C)(in which R is a lower alkyl group, p and q is respectively an integer, provided that p is 2 or more and p and q have a relation of 2.

Abstract: An aqueous ink having an extended cap-off time and a process for manufacturing the ink, wherein the aqueous ink is composed of water as the predominant or exclusive solvent, hydrocolloid/hydrocolloids or polysaccharide/polysaccharides as binding agents or film-forming agents, moist-keeping agents, coloring agents, emulsifying agents and possibly additional additives, wherein the ink further includes gum arabic and bees wax as film-forming agents. The ink is particularly an ink for writing, drawing, painting, printing or marking on normal paper or other absorbent writing carriers. The ink is particularly intended for use in fountain pens, ballpoint pens or stencil writers, in so-called felt-tip pens or pencils, in ink jet systems and/or in other capillary duct writing devices or systems.

Abstract: A ink composition comprised of (1) a liquid cyclic vehicle (2) a cyclic compound, (3) a liquid crystalline nitrile compound, (4) a lightfastness UV absorber, (5) a lightfastness antioxidant, and (6) a colorant.

Abstract: This invention concerns a composition for use as an additive in an ink composition for an inkjet printer or a laserjet printer or as a coating on paper or plastic substrate used in an inkjet or laserjet printer which improves lightfastness and durability properties of the ink, which additive composition comprises: (A) at least one ultraviolet absorber, (B) at least one free radical inhibitor, (C) at least one antioxidant, and (D) at least one liquid carrier selected from the group consisting of water, organic liquid or combinations thereof. These compositions result in a print image that is more colorfast and durable than those of the conventional art.

Abstract: The present invention provides a water-based ink composition in which the wettability, surface tension, antibacterial properties, and other properties are controlled based on a simple formulation. The water-based ink composition of the present invention contains a semi-polar boron compound. Semi-polar boron compounds represented by diglycerin borate exhibit superior wettability in an ordinary environment, and addition of such a compound achieves a water-based ink composition well-balanced in surface tension, wettability, and drying property even if the composition is prepared according to a simple formulation. The optimum quantitative range for addition of the semi-polar boron compound depends on whether the coloring material contained in the watercolor ink composition is a dyestuff or a pigment. When the coloring material is a dyestuff, the quantitative range is preferably 0.5 to 3.0% by weight relative to the entire quantity of the water-based ink composition.

Abstract: A security ink is provided containing a colored dye, a colored pigment, and a fluorescent pigment. The ink may be printed on a number of security documents such as checks and may be passed through printing devices such as laser printers without the problem of damage to the ink the printed image, or the printer. The fluorescent pigment in the ink will fluoresce when the document is exposed to ultraviolet light and may be used to provide an authentication feature.

Abstract: An inventive ink comprises a water-soluble dye or a pigment as a coloring agent, 5 to 15% by weight of polyvalent alcohol monoalkyl ether selected from the group consisting of tetraethylene glycol monoalkyl ethers and pentaethylene glycol monoalkyl ethers, 5 to 50% by weight of polyvalent alcohol, and pure water. When recording is performed in accordance with the ink-jet recording system by using the inventive ink, an excellent result is obtained from any viewpoint concerning, for example, the recording characteristic, the fixation to an objective recording material, the quick drying characteristic, the printing quality characteristic, and the low odor characteristic. The inventive ink is useful as an ink to be used for ink-jet recording apparatuses based on various recording systems, making it possible to obtain an excellent recording result.

Abstract: A latent image printing process by applying to a substrate a latent image ink composition containing zinc bromide with an ink jet printer. Subsequently, the latent image is activated to render it visible, by application of an activator.

Abstract: An ink comprised of (1) a liquid aldehyde, a liquid acid, or mixtures thereof, (2) a solid additive aldehyde compound, a solid additive acid compound, or mixtures thereof, (3) a lightfastness UV absorber, (4) a lightfastness antioxidant, and (5) a colorant.

Abstract: An ink composition comprised of (1) a liquid alcohol vehicle, (2) a solid alcohol compound, (3) a quaternary compound, (4) a lightfastness UV absorber, (5) a lightfastness antioxidant, and (6) a colorant.

Abstract: Decolorizable ink consisting of an ink composition dispersed in a solvent, the ink composition comprising a color former, a developer and a decolorizer, wherein the color former and developer are in a colored state by interaction between them and the decolorizer has a property to dissolve preferentially the developer when the ink composition is melted.

Abstract: An ink comprised of (1) a liquid ketone, (2) a solid ketone, (3) a lightfastness UV absorber, (4) a lightfastness antioxidant, and (5) a colorant.

Abstract: An ink comprised of (1) a liquid ester vehicle, (2) a solid ester compound, (3) a liquid crystalline ester compound, (4) a UV absorber, (5) an antioxidant, and (6) a colorant.