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5685 results about "Printing ink" patented technology

Ink is a liquid or paste that contains pigments or dyes and is used to color a surface to produce an image, text, or design.Ink is used for drawing or writing with a pen, brush, or quill.Thicker inks, in paste form, are used extensively in letterpress and lithographic printing.. Ink can be a complex medium, composed of solvents, pigments, dyes, resins, lubricants, solubilizers, surfactants ...

Ink-jet printing ink compositions having superior smear-fastness

Specific core-shell binders and additives for use in ink-jet printing ink compositions are provided. One class of specific core/shell binders has the general formula [AmBnC'p]x, where A and B are hydrophobic components in which A exhibits a glass transition temperature Tg between about -150° and +25° C. and B exhibits a glass transition temperature greater than 25° C., C' is a component that forms a hydrophilic or water-soluble component in the polymer chain, and has an ionic or non-ionic structure, m<30 wt %, n>40 wt %, and p<30 wt %, with the total of m+n+p=100 wt %, and x=1 to 100,000. The molecular weight (weight average) of the polymer is between about 1,000 and 2,000,000. The polymers useful in the practice of the invention are prepared by emulsifying the monomers and then conducting a free-radical polymerization in water. The foregoing binder polymer is used in conjunction with additives comprising either (a) amine alcohols having the general formulawhere R1 and R2 are independently selected from the group consisting of hydrogen, alkyl, alkoxy, aryl, and phenoxy, R is alkyl, X is selected from the group consisting of hydrogen, alkyl, aryl, -OH, -COOH, -CHO, and substituted groups or (b) organic acids (water-soluble or water-dispersive), including polymeric acids. Other additives include amines, polyalcohols, polyamines, and polyesters. In the ink compositions of the present invention, the ratio of binder (1) to colorant (pigment) is greater than 1 to 10. The concentration of the additive is within the range of 0.005 to 50 wt %. The general ink formulation comprises: 5 to 50 wt % water-miscible solvent; 0.5 to 10 wt % colorant; 0.005 to 50 wt % additive; and water.

Ink-jet recording medium with an opaque or semi-opaque layer coated thereon, method for recording an image, and a recorded medium with at least one layer rendered clear or semi-opaque

InactiveUS20040109958A1Extended drying timeAvoid excessive adhesionLayered productsCoatingsAziridineCross linker
The present invention features a multi-layer ink-jet recording medium, suitable for recording images with dye and pigmented inks and thereby providing light-emitting, reflective, glossy, metallic-looking or holographic images, comprising a substrate coated with at least two layers comprising: (a) a first transparent ink-receptive layer comprising a polymeric binder and a cross-linker and optionally having a plasticizer and pigment particles such as alumina and silica coated over the substrate, wherein the cross-linker comprises and azetidinium polymer or a salt thereof, and/or a polyfunctinal aziridine or a salt thereof or a polyfunctional oxazoline or a salt thereof; and (b) a second ink-receptive layer comprising an opaque or semi-opaque coating composition, wherein the opaque or semi-opaque coating composition is capable of accepting a printed image and thereby becoming semi transparent or clearly transparent from application of ink-jet printing ink or similar inks, while presenting a light-emitting, reflective, glossy, metallic-looking or holographic image of high clarity and quality, wherein said first layer is located between said second layer and the substrate in said recording medium and the first and second layers are chemically coupled.
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