Abstract: There is a process for preparing in situ an aqueous gel ink with fixed color having the following steps: (i) preparing a gel-based matrix of aqueous ink comprising 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid as reducing agent, and (ii) adding a solution of metallic salts to the gel-based matrix of aqueous ink prepared in step (i), to obtain an aqueous gel ink with fixed color with metallic nanoparticles dispersed therein. There is also an aqueous gel ink with fixed color obtained according to the process of the disclosure, comprising 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid and metallic nanoparticles. There is also a writing instrument comprising an aqueous gel ink with fixed color according to the disclosure.

Abstract: An aqueous printing ink and coating composition contains colorant, one or more high molecular weight starches and one or more water soluble acrylic polymers or co-polymers.

Abstract: An extender for flexographic and other ink compositions and inks using such extender where potato starch serves as the ink carrier and an emulsion resin. The use of potato starch provides for a readily available, cost effective, substantial and environmentally friendly alternative to petroleum and soy based resins.

Abstract: A penetration inhibitor includes a rosin-series resin having weight-average molecular weight of at least about 16,000 and at most about 50,000. The penetration inhibitor is to be added to a solvent ink for an inkjet printer.

Abstract: A coating composition for paper is provided for use with inkjet printing comprising at least one of ground calcium carbonate and kaolin clay, a binder, and a salt suitable to fix the ink on the paper. A method of printing on a paper coated with the composition, as well as the coated paper, and a method of forming the coated paper are also provided.

Abstract: The invention provides a dual color ink composition which comprises: (a) at least one pigment selected from a pearlescent pigment and a metal powder pigment; (b) water; (c) at least one water-soluble organic solvent selected from alcohols, glycols and glycol ethers, any of which have a branched hydrophobic group; (d) a water-soluble dye; and (e) a modified starch as a water-soluble fixing agent.

Abstract: The present invention provides a fluorescent marker ink coloring composition incorporating an optical brightener, a film-forming agent, an aqueous carrier, and a colorant. The optical brightener is an amphoteric distyryl fluorescent whitener which generates a special effect in the dried marking ink composition. The coloring composition can optionally include one or more of a humectant, a surfactant, a preservative, a drying agent, a pH regulant, a bittering agent or a fragrance. The present invention further provides a writing instrument comprising the coloring composition.

Abstract: A no-mess water-based ink including a composition including water, an organic solvent, a coloring agent dissolved in the organic solvent, an emulsifier and a thickening agent for use in conjunction with a specially treated substrate containing a color developer.

Abstract: The subject of the present invention is the use of particular polysaccharides as admixtures for mineral materials, especially as admixtures for mineral binders. These polysaccharides have, characteristically: a weight-average molecular weight Mw of at least 500 g/mol and at most 9000 g/mol, especially between 700 and 7000 g/mol; and a degree of branching DB of at least 10%, especially between 10 and 40%. The invention also relates to the combined use, in mineral materials, including especially mineral binders, of these particular polysaccharides on the one hand and of certain other admixtures on the other hand, for example admixtures, of saccharidic or nonsaccharidic type, having a plasticizing, superplasticizing or other functionality.

Abstract: In a ball pen which is formed to have an ink-consumption value per unit area of 0.64 to 1.6 mg/cm2, the water content is adjusted in the range from 30.0 to 80.0 wt %, the content of a volatilization-inhibiting substance in the range from 0.1 to 10.0 wt % and the content of a hardly-volatile water-soluble liquid medium in the range from 1.0 to 40.0 wt % in the ink for a ball pen in order to achieve both the quick-drying property of the ink transferred onto the paper surface and the non-drying property of the point of the pen-tip and further a good writing feeling.

Abstract: Methods of making and using starch graft copolymers produce particle sizes useful in granule applicators for applying to agricultural fields. Starch graft copolymers on field crops provide excellent anti-crusting properties, increased seed germination and stand, increased crop growth, increased crop yields and reduced water requirements.

Abstract: The present invention is directed to a 3DP™ material composition and method of use. The composition of the present invention includes an adhesive material, a fibrous component and a filler. Alternatively, the composition may include a particulate material having a mean particle size between about 10 microns and about 300 microns, a soluble adhesive material. The compositions may also include an accelerator and an additional adhesive.

Abstract: In a ball pen which is formed to have an ink-consumption value per unit area of 0.64 to 1.6 mg/cm2, the water content is adjusted in the range from 30.0 to 80.0 wt %, the content of a volatilization-inhibiting substance in the range from 0.1 to 10.0 wt % and the content of a hardly-volatile water-soluble liquid medium in the range from 1.0 to 40.0 wt % in the ink for a ball pen in order to achieve both the quick-drying property of the ink transferred onto the paper surface and the non-drying property of the point of the pen-tip and further a good writing feeling.

Abstract: There is provided an ink composition which can realize good images, especially an ink composition which, when used in an ink jet recording method, can be stably ejected and can realize good image quality. The ink composition comprises: a colorant; water; a water soluble organic solvent; and a mixture of saccharides, wherein the mixture of saccharides comprises a monosaccharide and/or a derivative thereof, a disaccharide and/or a derivative thereof, and a tri or higher polysaccharide and/or a derivative thereof.

Abstract: A water-based coloring composition suitable for use in children's markers comprising a carrier, submicron polymeric particles, and a neutral buoyancy additive. The coloring compositions produce unique opaque images on a wide variety of writing surfaces. Additionally, the invention includes a water-based dry erase coloring composition suitable for use in children's markers comprising a carrier, submicron polymeric particles, a neutral buoyancy additive, and a release agent.

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.