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

An ink jetting ink set includes an ink composition for recording supplied to and used in an ink flow path and containing at least one of a glitter pigment and a metal oxide as a coloring material, and an auxiliary ink composition used in cleaning of the ink flow path, in which, in cases where a dynamic viscosity at 20° C. in the ink composition for recording is η1 (mm2 / s) and a surface tension at 20° C. is γ1 (mN / m), and the dynamic viscosity at 20° C. in the auxiliary ink composition is η2 (mm2 / s) and the surface tension at 20° C. is γ2 (mN / m), the following formula (1) and the following formula (2) are satisfied at the same time.η1≦η2  (1)γ1≧γ2  (2)

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.

A photosensitive lithographic printing plate comprising: a support; and a polymerizable photosensitive layer that comprises: an addition-polymerizable compound having an ethylenically unsaturated double bond; a polymerization initiator; and a polymer compound having (a) a monomer represented by formula (I) and (b) a monomer represented by formula (II) as copolymerization component: wherein Rf represents a substituent containing a fluoroalkyl or perfluoroalkyl group having 9 or more fluorine atoms; n represents 1 or 2; and R1 represents a hydrogen atom or a methyl group; wherein R21 represents a hydrogen atom or a methyl group; R22 represents a divalent hydrocarbon group having a carbon number of 3 to 30 and having an aliphatic cyclic structure; A represents an oxygen atom or —NR23—; and R23 represents a hydrogen atom or a monovalent hydrocarbon group having a carbon number of 1 to 10.

The positive-type planographic printing plate precursor of the invention comprises a support and a recording layer provided on the support, wherein the recording layer contains: a polymer compound having (a) a monomer represented by the following formula (1), (b) a monomer having an alicyclic group having 7 or more carbon atoms and having a bridge bond, and (c) a monomer having an acid group as a copolymerization component; and an infrared-ray absorbing agent. The positive-type planographic printing plate precursor of the invention achieves both excellent developability and excellent inking property, as well as better image-forming property and a clear image. Wherein in the formula (1), Rf is a substituent containing a fluoroalkyl group or a perfluoroalkyl group having 9 or more fluorine atoms, n represents 1 or 2, and R1 represents hydrogen or a methyl group.

Provided is a lithographic printing original plate which has an image recording layer on a supporting body, and wherein the image recording layer contains a polymer that has a sulfonamide group, an amide group, an imide group or a carbonate group in the main chain, while having a group represented by general formula (1). This lithographic printing original plate has excellent on-press developability, development scum adhesion preventing properties, receptibility and printing durability. Also provided is a plate making method. In formula (1), X represents a single bond or an oxygen atom; Ra represents an alkylene group having 6-40 carbon atoms in cases where X is a single bond, while representing an alkylene group having 2-20 carbon atoms in cases where X is an oxygen atom; and n representsa number of 1-45.

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.

This method for concentrating processing waste liquid includes a step in which waste liquid produced by developing lithographic printing plates with a developer is obtained after exposure. The lithographic printing plate has, on a substrate, an image recording layer containing an infrared-absorbing dye, a polymerization initiator and a polymerizable compound on a substrate, and a protective layer. The developer: contains 1 mass% to 10 mass% of an anionic surfactant having a naphthalene skeleton and / or a nonionic surfactant having a naphthalene skeleton; contains 2 mass% or less of an organic solvent with a boiling point of 100 DEG C to 300 DEG C; and a pH of 6.0 to 9.5. This method for concentrating processing waste liquid further includes a step in which the waste liquid is concentrated through evaporation in such a manner that the ratio of the quantity of the processing waste liquid after concentration to the quantity of processing waste liquid before concentration is 1 / 2 to 1 / 10 on a volume basis.

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.

An object of the present invention is to provide an ink jet print head having plural types of nozzles arranged on the same substrate and through which ink droplets of different sizes are ejected, the ink jet print head exhibiting acceptable ejection performance regardless of the type of the nozzle. Thus, according to the present invention, each of the plural types of nozzles includes a bubbling chamber having an ejection energy generating element allowing an ink droplet to be ejected to a position located opposite an ejection port and an ejection port portion allowing the ejection port and the bubbling chamber to communicate with each other. Ratio of opening area of the ejection port portion at a position where the ejection port portion and the bubbling chamber communicate with each other, to the opening area of the ejection port is higher for the nozzle with a smaller ejection amount.

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.

The invention belongs to the technical field of ink printing and particularly relates to environment-friendly black ink which is characterized by comprising, by weight percentage, 30-34% of colloid oil, 25-39% of resin oil, 13-16% of soybean oil solvent, 22% of carbon black, 2% of Hualan pigment, 3% of reflex blue, 0.5-2% of auxiliaries and 0.8-2.5% of desiccant. The environment-friendly black ink has the advantages that the environment-friendly black ink is excellent in environmental friendliness, good in abrasion resistance and inking performance and free of toxicity, waste paper is deinked more easily, the printing amount is larger, and the environment-friendly black ink is deep, rich and bright in color and can be widely suitable for color printing.

The invention provides environment-friendly paper and a manufacturing process thereof. The environment-friendly paper is prepared from a base paper layer, wherein the base paper layer is prepared fromthe following components: 68 to 75 parts by weight of colliery powder, 15 to 20 parts by weight of PE and 0.5 to 2 parts by weight of aids, wherein the PE is prepared from one or two of LDPE or MDPE.The environment-friendly paper and the manufacturing process thereof, disclosed by the invention, have the advantages of minimal and uniformly-distributed surface micro-pores, good inking performance, good printing effect, capability of reproducing the bright effect of a printing plate, as well as outstanding water resistance, oil resistance and chemical resistance.

The invention discloses a double-direction perspective film and a manufacturing method thereof. The double-direction perspective film successively comprises a transparent film, an adhesive layer, a metal layer and a pasting layer, wherein a photic zone is distributed on the metal layer, and the photic zone penetrates through the adhesive layer. The double-direction perspective film and the manufacturing method thereof provided by the invention have the advantages that a structure that the transparent film and the metal layer are mutually matched is adopted, the disadvantage of printing ink is fully made up through the strong covering power and color rendering of the metal layer, a problem of printing oil transfer after long-term storage is avoided as the metal layer has stable quality, and a picture has the strong metal feel due to the metal layer; meanwhile, the photic zone arranged on the metal layer can guarantee that the picture is distinctly showed, transmitting and perspective effects are met, an ink surface of the photic zone is also inked and colored, the picture printed on the front side is distinct, the picture of a mirror image is also seen from the reverse side, and the metal layer can realize a background layer with different colors on the two surfaces, which can not be realized by the printing ink; the double-direction perspective film and the manufacturing method thereof provided by the invention have the advantages that the structure is simple, the manufacture is convenient, and the pasting is convenient and firm.

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.