352results about How to "Good ink absorption" patented technology

The present invention provides a method for forming a flexographic printing plate that includes imagewise applying an image-forming material onto a substrate with an ink-jet printer to form a relief image, in which the image-forming material adheres to the surface of the substrate and resists deformation. The method of the present invention may further include treating the relief image.

According to the present invention there is provided a heat-sensitive non-ablatable wasteless imaging element for providing a lithographic printing plate, having on a support as top layer an image forming layer comprising a heat-switchable binder, characterized in that said image forming layer becomes more hydrophobic under the influence of heat.

An ink jet inkjet receiver layer on a substrate consists of at least two layers of similar composition of binder and pigment, except that the layer next to the substrate has a smaller pigment / binder ratio versus the layer laid on top of it. Multiple layers making up the gradient are included.

Provided is an inkjet recording medium in which hydrated alumina and a sulfinic acid compound or thiosulfonic acid compound coexist in a pigment in an ink receiving layer, and which can prevent white-background yellowing during storage in a resin file holder or the like and ensure printing quality at the same time. The ink receiving layer of the inkjet recording medium contains the sulfinic acid compound or thiosulfonic acid compound, which functions to prevent yellowing, in a salt form or in a free form so as to be diffusible.

The invention provides writing paper made of slurry comprising the following components by percentage: 20% to 100% of unbleached straw pulp and 0% to 80% of wood pulp. According to the ISO (International Standardization Organization), the whiteness of the writing paper is 35% to 75%; the opacity thereof is higher than or equal to 75%; and the basis weight thereof is 45.0g / m<2> to 80.0g / m<2>. The production process of the writing paper is energy-saving and cost-saving; and the pollutant emission can be greatly reduced.

The invention provides a recording medium having excellent ink absorbency and capable of forming a sharp image thereon. The recording medium has a substrate, and a first layer and an outermost layer provided on the substrate in this order, wherein the first layer contains at least one of alumina and alumina hydrate, the outermost layer contains a pigment and is lower in refractive index than the first layer, and the absolute dry coating amount of the outermost layer is 0.1 g / m2 or more and 0.5 g / m2 or less.

Formulations comprising novel porous metal oxide particles and binder are particularly suitable for ink receptive coatings, e.g., for ink jet papers and films. The metal oxide particles used in this application have a porous structure that differs significantly from the nonporous silica colloids. The particles have a median particle size in the range of about 0.05 to about 3 microns and porosity such that when an aqueous dispersion of the particles is dried at least 0.5 cc / g of pore volume is from pores having a pore size of 600 Å or less. The particles also have a viscosity derived pore volume of at least 0.5 cc / g.

The invention relates to calcium silicate high-filling polymer modified paper, which is compounded and formed by three layers of non-plant fiber calcium silicate substrates, wherein the first layer and the third layer are prepared from 2 to 6 percent of ethylene bis stearamide, 8 to 23 percent of high-density polyethylene, 3 to 9 percent of metallocene polyethylene, 0 to 1 percent of low-molecular polyethylene, 50 to 60 percent of activated calcium silicate, 10 to 25 percent of calcium silicate inorganic powder and 0 to 3 percent of addition agents, the first layer and the third layer accounts for 25 percent of the weight of the paper, the second layer is prepared from 50 to 60 percent of activated calcium silicate powder, 10 to 25 percent of calcium silicate, 2 to 9 percent of styrene-butadiene block copolymer, 7 to 21 percent of high-intensity polyethylene materials, 4 to 8 percent of linear low-intensity polyethylene and 0 to 3 percent of addition agents, and the second layer accounts for 50 percent of the weight of the paper. The modified paper has the same appearance, whiteness, sizing degree, opacity, strength, toughness and rigidity as plant fiber paper and has simple production processes, no bacteria and poison; and because the product is used for packing paper and can replace the traditional plastic packing paper, a great amount of petroleum can be saved.

The present invention relates to an ink jet recording sheet comprising a sheet-like substrate, and an ink receiving layer formed on at least one surface of the sheet-like substrate, the ink receiving layer containing an amorphous silica having an average particle size 0.5 to 10 μm and a binder, the sheet-like substrate being subjected to a calendering treatment after forming the ink receiving layer thereon, thereby white-paper gloss of the recording sheet measured at 75° in accordance with JIS Z 8741 is from 30 to 90%.

Disclosed are an ink-jet recording material for proof including a water-resistant support and at least one ink-receptive layer containing inorganic fine particles and a hydrophilic binder provided on the support, wherein the water-resistant support has a center line average roughness Ra75 with a cut off value of 0.8 mm according to JIS-B0601 of 1.0 μm or less, and an uppermost ink-receptive layer farthest from the water-resistant support contains a colorless or white matting agent having an average particle size of 1 to 10 μm and a colored pigment having an average particle size of 1 μm or less, and use of the same for proof.

A method for producing a recording medium, including a step of coating one or more ink receiving layers provided on at least one surface of a substrate with an outermost layer coating liquid to form an outermost layer, where an ink receiving layer of the one or more ink receiving layers, which is nearest to the outermost layer contains alumina hydrate and a binder. The outermost layer coating liquid contains monodispersive and spherical cationic colloidal silica particles having an average particle size of 30 nm or more and 60 nm or less, polyvinyl alcohol having a saponification degree of 75% by mol or more and 85% by mol or less and a viscosity-average polymerization degree of 1,500 or more and 2,200 or less, and cationic polyurethane emulsion particles having an average particle size of 10 nm or more and 100 nm or less.

The invention discloses a color management method and device of a maximized uncoated paper printing color gamut. The method comprises the following steps: (1) setting a dot shape to be compound screening through prepress setting; (2) increasing dots for reducing CMYK to 13%-16% through prepress compensating curve setting for increasing image contrast level; (3) increasing the density values of C,M, Y and K to 1.20-1.25, 1.20-1.25, 0.95 and 1.25-1.30 separately for increasing color saturation; (4) increasing a rubber blanket by adjusting the press setting for increasing the pressure between apress tape cylinder and an impression cylinder and improving the ink absorption performance of uncoated paper; and (5) adding 2%-4% of viscosity reducers in amount to original color ink by adjusting CMY ink viscosity. According to the color management method disclosed by the invention, the inking amount is increased by improving the paper ink absorbency, and the contrast level is increased by matching with the prepress treatment for increasing the color gamut. The printing color gamut is increased by 30% than the printing color gamut in ISO, so that the publication and production are convenient, and the uncoated paper production is easy apply; the manufacturing procedures of coated paper and the cost are reduced, and the method is friendly-environment.