327 results about "Relief printing" patented technology

The invention provides a method for printing a pattern of ink on a substrate, such as corrugated paperboard, with a relief printing form made from a photosensitive element. The method includes forming an in-situ mask for the photosensitive element, exposing the element to actinic radiation through the in-situ mask in an environment having an inert gas and a concentration of oxygen between 190,000 and 100 ppm, and treating the exposed element to form the relief printing form having a pattern of printing areas. Printing is accomplished by securing the relief printing form to a print press, applying the ink to the printing areas on the printing form, and contacting the ink from the printing areas to the substrate to transfer the pattern of ink onto the substrate.

A relief (or flexographic) printing precursor has first and second radiation-sensitive layers, or a plurality of radiation-sensitive layers. The first radiation-sensitive layer is sensitive to a first imaging radiation having a first λ_max. The second radiation-sensitive layer is disposed on the first radiation-sensitive layer and is sensitive to a second imaging radiation having a second λ_max that differs from the first λ_max by at least 25 nm. An infrared radiation ablatable layer can be present and is opaque or insensitive to the first and second imaging radiations and contains an infrared radiation absorbing compound. These relief printing precursors can be used to prepare flexographic printing plates, cylinders, or sleeves where the ablatable layer is used to form an integral mask on the element. Use of the invention provides a relief image without any loss in the strength of the small dots and can be carried out using multiple irradiation steps using the same apparatus.

A method of tailoring the shape of a plurality of relief printing dots created in a photosensitive printing blank during a platemaking process is provided. The photocurable layer is exposed to actinic radiation using an array of UV LED light assemblies and the use of the array of UV LED light assemblies produces relief printing dots having at least one geometric characteristic selected from the group consisting of a desired planarity of a top surface of the relief printing dots, a desired shoulder angle of the relief printing dots and a desired edge sharpness of the relief printing dots.

PURPOSE: To provide a resin relief printing plate for forming a thin film by which a marginal phenomenon is prevented from being generated and an oriented film with a uniform film thickness can be formed. CONSTITUTION: In the resin relief printing plate for forming the thin film used for transferring a coating liquid applied on projected parts 2 for printing onto a body to be printed and printing, channel parts 4 for holding the coating liquid are formed among adjoining micro-projections 3 by distributing and forming a number of the micro-projections 3 on the whole face of the projected parts 2 for printing. In addition, in the central regions X of the projected parts 2 for printing, the adjoining micro-projections 3 are uniformly formed and in the peripheral regions Y of the projected parts 2 for printing, distribution densities of the micro-projections 3 are higher than those of the central regions X. In addition, the occupied area ratio of the micro-projections 3 becomes gradually higher as the regions approach toward the end parts in the peripheral regions Y.

The invention provides a resin composition for laser engraving, containing at least (A) a polymerizable compound having two or more ethylenic unsaturated bonds, a carbon-sulfur bond being contained at the site where two among the two or more ethylenic unsaturated bonds are connected and (B) a binder polymer. The invention further provides an image forming material containing the resin composition, a relief printing plate precursor having a relief forming layer which contains the resin composition, a relief printing plate precursor having a relief forming layer which contains a product formed by subjecting the resin composition to cross-linking, a method for manufacturing a relief printing plate including subjecting the relief printing plate precursor having the relief forming layer which contains the resin composition to cross-linking, and a relief printing plate manufactured by the manufacturing method.

The invention provides a method and an apparatus for preparing a relief printing form from a photosensitive element. More specifically, this invention describes a method and an apparatus for preparing a relief form in an environment having controlled oxygen concentration during exposure to actinic radiation. The method includes forming an in-situ mask on a photosensitive element, exposing the element to actinic radiation through the in-situ mask in an environment having an inert gas and a concentration of oxygen between 190,000 and 100 ppm, and treating the exposed element to form the relief printing form having a pattern of raised surface areas.

A rotary press for printing on non-drying adhesive matter is composed of paper feeder, paper receiver, speed reducer, AC servo tension control and tract unit, platen unit, skew corrector, servo motor cooling and driving unit, flexible plate printing unit, paper chip and static electricity remover, corona unit, silk screen printing unit, satellite relief printing unit, gilded film sticking-UV baking-cooling driver, golden foil feeder, reel, gilded film cutting unit, etc.

Disclosed is a process for forming a patterned fluoropolymer film on a substrate by raised relief printing a fluoropolymer solution with a patterned raised relief printing plate, and drying the solvent from the solution to form the patterned fluoropolymer film. Such fluoropolymer films are useful as antireflective or hydrophobic layers on substrates used in optical displays.

A relief printing plate precursor for laser engraving, including a relief forming layer that includes a peroxide and a binder polymer, and includes a crosslinked structure.

The present invention provides a resin composition for laser engraving, containing at least an inorganic porous material, a binder polymer, a thermopolymerization initiator and a polymerizable compound; a relief printing plate precursor for laser engraving using the same; a relief printing plate; and a method of producing the relief printing plate.

An object of the present invention is to provide a photosensitive resin printing plate precursor capable of forming a protruding relief pattern without using any original pattern film. Specifically, the present invention relates to a photosensitive resin printing plate precursor including: a photosensitive resin layer (A) containing a water-soluble or water-dispersible resin and an ultraviolet-curable monomer; and a water-insoluble heat-sensitive mask layer (C) containing an infrared-absorbing material, deposited in that order on a support. By introducing a crosslinked structure or a hydrophobic constituent to the heat-sensitive mask layer (C) so as to be insoluble in water, difference in polarity is produced between the layers (A) and (C) and, thus, mass transfer between the two layers can be prevented. Also, the scratch resistance of the heat-sensitive mask layer (C) can be dramatically enhanced and, thus, the printing plate precursor becomes easy to handle.

The invention discloses a piece of transfer hollow-out sprayed metallic paper or card paper which is characterized by sequentially comprising a strippable coating (2), a hollow-out sprayed metallic layer (3), a glue layer (4) and a piece of paper (6) from top to bottom; and besides the four layers, the transfer hollow-out metalized paper also can comprise any one or more of a surface coating (bright oil layer) (1), a coloring layer (5) and a back coating (7). In the invention, through adopting a relief printing process principle, a low-surface tension coating which contains pre-designed patterns and/or characters is printed on a plastic film which is coated with the strippable coating; then vacuum spraying is carried out to obtain a metallic layer which cannot be deposited on the low-surface tension coating and can be deposited on other places without the low-surface tension coating coated; the hollow-out metallic layer is composited with the paper by use of glue; and the plastic film is processed by resurgence or back coating after being stripped to obtain the sprayed metallic paper or card paper with hollow-out patterns and/or characters.

A resin composition for laser engraving includes a binder polymer including a polyester, and an oxy compound of at least one of metal and metalloid selected from Groups 1 to 16 of periodic table.

A printing method including the steps of, forming a transfer layer on a blanket, forming a groove portion on the transfer layer by pressing a protrusion portion of a mold member including the protrusion portion having a predetermined pattern against the transfer layer, the groove portion having the pattern corresponding to the protrusion portion, forming a print pattern layer on the blanket by causing the transfer layer on the blanket and a relief printing plate including a convex portion having a pattern corresponding to a reverse pattern of the protrusion portion to face each other and pressure-contacting them so that a portion on the transfer layer corresponding to the convex portion is selectively eliminated, and transferring the print pattern layer onto a substrate to be printed by causing the print pattern layer on the blanket and the substrate to be printed to face each other and pressure-contacting them.

The invention discloses a polychrome connection silk screen printing process and equipment thereof, and relates to the technical field of sheet-fed rotary screen printing. The printing process comprises the following steps: transferring the printing ink to relief printing plates on four color mould drums by utilizing a four-color-group ink supply unit in satellite-type layout; converging the different colors onto the color gathering rubber blankets of a double-diameter impression cylinder in different zones by different color mould relief printing plates; transmitting the different colors onto a connection cylinder printing plate in a silk screen cylinder by combining a special money printing connection process through a big neutral position to form an accurate printing ink pattern; and finally rolling the printing ink pattern onto the paper sheet through the silk screen plate to form a polychrome connection pattern. The invention can realize the connection silk screen printing process of different-color counterfeiting inks, such as OVI and OVMI, and also can realize a puzzle connection silk screen printing process and a mixed-color silk screen printing process of common printing ink, OVI, OVMI and colorless fluorescent ink and the like. The printing production has high yield and accurate connection, and is convenient in operations of washing, replacing and tightening the silk screen plates.

The invention discloses a preparation method and a use method for paper for textile fabric printing. The preparation method comprises the following steps of: 1) producing paper pulp: placing 60-100 parts of fibre paper pulp plates and not greater than 40 parts of raw wood pulp plates in a pulp-producing stirring pool and uniformly mixing, adding 0.5-1% of starch and 3-10% of sodium carboxymethylcellulose, and uniformly stirring; 2) producing adhesive film solution: stirring and mixing water-soluble resin with cellulose, adding 65 parts of water in 35 parts of the mixture, stirring, heating to 80 DEG C, and when the liquid becomes transparent, adding an adhesive and auxiliaries, and mixing and stirring; and 3) applying an adhesive film layer according to an adhesive-applying dry base unit weight of 30 g per square meter, drying and pressure-polishing, and then producing the paper for printing. According to the use method disclosed by the invention, patterns can be printed by adopting an intaglio printing plate, a flat plate, a relief printing plate, a flexible printing plate or printing equipment, and the patterns are transferred on various fibre textile fabrics, metals, woods, ceramics and leathers by a cold-transferring method or a heat-transferring method. The preparation method and the use method are suitable for being used in the wide industries of textile, clothing, home decoration, furniture, advertisement, gift production and the like.

A method for printing on a curved surface and a printed curved surface body using the method. The method includes the steps of: applying printing ink having a viscosity of 5-500 PaS, preferably 5-250 PaS, to a protrusion portion of a relief printing master plate 3 which is a flat plate with the protrusion portion 0.1-50 μm high, preferably 0.1-25 μm high in height h; pressing a rubber or rubbery roll-like elastic blanket 2 having an elastic portion whose thickness T has a relation of 2H≦T≦8H with respect to a level difference H of a to-be-printed curved surface body 10 and which has a hardness (JIS A-scale) of 3-40, preferably 3-20, onto the relief printing master plate 3 supplied with the printing ink while applying constant pressure to the roll-like elastic blanket 2 and smoothly rotating the roll-like elastic blanket 2, so as to transfer the printing ink to an outer circumferential surface of the roll-like elastic blanket 2; and moving the roll-like elastic blanket 2 having the printing ink transferred thereto, and bringing the roll-like elastic blanket 2 into rotational pressure contact with a surface of the to-be-printed curved surface body 10 so as to perform printing thereon.

A resin composition for laser engraving, including at least a phenol derivative (A) represented by the following Formula (A), a binder polymer (B), and a crosslinking agent (C), wherein the content of the phenol derivative (A) with respect to the total solid content of the resin composition is from 5% by mass to 50% by mass:

A method of making a relief image printing element comprising a plurality of relief printing dots. The method includes the steps of: (a) providing at least one photocurable layer disposed on the backing layer, the at least one photocurable layer being capable of being selectively crosslinked and cured upon exposure to actinic radiation, (b) imagewise exposing the at least one photocurable layer to actinic radiation to selectively crosslink and cure portions of the at least one photocurable layer; and (c) developing the relief image printing element to separate and remove uncrosslinked and uncured portions of the at least one photocurable layer to reveal the relief image therein. The at least one photocurable layer comprises (i) an ethylenically unsaturated monomer; (ii) a binder; and (iii) a photoinitiator exhibiting a quantum yield of initiation (Qi) of more than 0.05 at a 365 nm wavelength.

A resin composition for laser engraving is provided that includes (a) a binder polymer having a reactive group, (b) a compound having a hydrophilic group and a bonding group that can react with the reactive group, and (c) a crosslinking agent.