46results about How to "Good inking effect" patented technology

The object of the present invention is to provide a recording ink having excellent color developing properties and high delivery stability, by which not only the color saturation of the obtained image can be remarkably improved, but also the image having a high quality can be formed. For this object, the present invention provides a recording ink used for an inkjet recording using a dye ink and a pigment ink properly alternately through one inkjet head, wherein the dye ink and the pigment ink have respectively a viscosity at 25° C. of 5 mPa·s or more and the difference between the viscosity of the dye ink and the viscosity of the pigment ink is 3 mPa·s or less.

The invention provides a coating white cardboard comprising a raw paper and a coating layer, wherein the raw paper comprises a surface layer, a core layer and a bottom layer which are orderly overlaid, the bottom layer is distributed with natural color fibers accounting for 5-10% by weight of the bottom layer, and the coating layer is coated on the surface layer. Because the natural color fibers which are distributed on the bottom layer form textures, the coating white cardboard is easy to be distinguished and recognized from conventional white cardboards. The natural color fibers do not need to be bleached through chemical processing, thereby influence of environment from bleaching chemicals is reduced, and COD emission load when in pulping is effectively reduced. The flexible performance and the bond strength of the coating white cardboard are increased by adopting a fiber structure, binding force between layers is increased, and therefore packaging strength is increased.

Provided are: a lithographic printing plate exhibiting excellent plate durability, chemical resistance, scratch resistance and impression properties while maintaining dirt resistance; and a method for producing the lithographic printing plate. A lithographic printing plate original having a support body and a photosensitive layer on the support body, wherein the photosensitive layer contains: (A) a polymerizable compound; (B) a polymerization initiator; (C) a polyvinyl acetal resin having one or more hydroxyl groups; (D) a cross-linking agent capable of cross-linking by reacting with a hydroxyl group and / or an acid group in the polyvinyl acetal; and (E) a (meth)acrylic resin.

An object of the present invention is to provide an ink jet recording method which gives an ink excellent anti-sticking properties and can suppress the occurrence of undertrapping when recording surfaces of recording media which each have an ink-receiving layer are overlapped with each other, and to provide an ink jet recording apparatus. The ink jet recording method of forming an image on the recording medium having the ink-receiving layer by ejecting an ink from an ink jet recording head, the method including performing at least one of drying the recording medium which has the image formed thereon and humidifying a gap between the recording head and the recording medium, wherein the ink to be used for forming the image is an ink which contains water, a water-soluble organic solvent and a specific compound.

A method for producing a lithographic printing plate is provided, wherein, in the non-alkaline development of a lithographic printing plate precursor having a protective layer, even if the protective layer components are mingled into the developer, the reduction in development removability of the image recording layer and the generation of development scum can be inhibited; an on-press development type lithographic printing plate precursor with excellent inking property, high scratch resistance, satisfied on-press developability and good fine line reproducibility is provided; and a lithographic printing method is provided, each of which is a method for producing a lithographic printing plate, comprising: imagewise exposing a lithographic printing plate precursor comprising a support, an image recording layer and a protective layer, and rubbing the plate surface by a rubbing member of an automatic processor in the presence of a developer at a pH of 2 to 10 to remove the protective layer and the image recording layer in the unexposed area; a lithographic printing plate precursor comprising a support, an image recording layer removable with a printing ink and / or a fountain solution, and a protective layer containing a polyvinyl alcohol having a carboxyl group and / or a sulfonic acid group within the molecule; and a lithographic printing method comprising on-press development.

The invention discloses a coating liquid used for the surface of environment-friendly rich mineral paper, which solves the problems of harsh surface handfeel, lack in gloss, low strength, poor bending performance and the like of the paper caused by the existing product. The coating liquid comprises the following components in percentage by weight: 14.8%-17.2% of butadiene styrene rubber latex, 31.0%-36.0% of inorganic mineral powder, 33.5%-42.7% of pure water, 0.4%-0.5% of glycol, 0.22%-0.25% of dispersing agent, 0.11%-0.13% of antifoaming agent, 0.18%-0.21% of thickening agent, 9.7%-11.3% of PVA (poli vinyl alcohol)-S and 0.8%-1.0% of lubricating agent. The invention also provides a preparation method of the coating liquid. The surface handfeel, the flatness, the flexibility and the printing performance of the environment-friendly paper can be observably improved, and the surface strength of the paper is improved.

A platemaking method for a lithographic printing plate, comprises: imagewise exposing a lithographic printing plate precursor comprising: a hydrophilic substrate; and a negative image recording layer containing a water-insoluble polymer; and removing a non-exposed area of the image recording layer with an aqueous solution, wherein a temperature of the aqueous solution is higher than a glass transition temperature (Tg) of the water-insoluble polymer.

A non-alkali-developer violet laser photopolymerization type lithographic printing plate comprises a support. A photopolymerization type photosensitive layer is arranged on the support, a waterborne protective layer is cling to the photopolymerization type photosensitive layer, and photosensitive ingredients include ethylene unsaturated group-containing compounds, single component or double-component or multi-component initiator systems, colouring agent and the like. Exposed areas of the violet laser photopolymerization type lithographic printing plate are cured, and unexposed areas are removed through non alkali developer in a developing manner. The PH value of the non-alkali developer ranges from 2 to 9.