412results about "Plate printing" patented technology

The invention relates to the technical field of silk-screen printing, and discloses a mesh straightness optimizing device which comprises a supporting frame, first supporting plates are fixedly connected to the four corners of the inner side of the supporting frame, one ends of the multiple first supporting plates are fixedly connected with the same first inner frame, and a fixing frame is arranged on the upper side of the supporting frame; second supporting plates are fixedly connected to the four corners of the inner side of the fixing frame, one ends of the multiple second supporting plates are fixedly connected with the same second inner frame, multiple hollow plates are fixedly connected to the periphery of the top of the fixing frame at equal intervals, and rotating shafts are rotatably connected to the inner sides of the multiple hollow plates; and the outer sides of the multiple rotating shafts are fixedly connected with L-shaped plates. When a sliding block moves, an L-shaped plate is driven to rotate through a movable plate, so that a roller is driven to move downwards to press a single net wire, the tightness of the single net wire can be adjusted, and the net wire tension of each part on a net plate can be accurately controlled.

The utility model belongs to the technical field of electrode printing, and discloses a full-opening steel plate for printing and printing equipment. The full-opening steel plate for printing comprises a first metal layer and a second metal layer, and the first metal layer is provided with a printing opening in the first direction; the second metal layer is stacked on one side of the first metal layer, a slurry penetrating opening is formed in the second metal layer in the first direction and penetrates from the slurry coating face to the printing opening, a plurality of connecting parts are arranged in the slurry penetrating opening at intervals in the first direction, the connecting parts are partially hollowed out, and the connecting parts and the first metal layer are arranged at intervals; and a slurry storage cavity is formed between the connecting part and the first metal layer. According to the full-opening steel plate for printing, the locally-hollowed-out connecting part and the slurry storage cavity are used for storing slurry together, so that sufficient slurry is supplied to the printing opening, the situation that gaps are generated in the positions, corresponding to the connecting part, of the fine grids due to insufficient slurry supply is prevented, the printing height of the welding area is effectively controlled, and the printing quality of a battery piece is improved.

Provided are a washout processor and a method for manufacturing a flexographic printing plate precursor, which have good productivity and work efficiency. A washout processor that develops a flexographic printing plate precursor after imagewise exposure using a developer includes a station for attaching the flexographic printing plate precursor, and a measurement unit that measures at least one of a size or a thickness of the flexographic printing plate precursor and a position of the flexographic printing plate precursor on the station.

The invention relates to the technical field of printing screens, in particular to a pure opening printing screen and a manufacturing method thereof.The manufacturing method of the pure opening printing screen comprises the steps that a polyethylene film and metal mesh cloth are sequentially attached to a polyester mesh, the metal mesh cloth and the polyester mesh are tightly attached together in a hot pressing mode, and composite mesh cloth is formed; the designed processing drawing is guided into a laser machine, and a yarn removing area, a yarn removing path and a yarn removing sequence are set; starting a yarn removing program of the laser machine, completely removing steel wires in the X-axis direction and the Y-axis direction of the yarn removing area of the composite screen cloth, and forming a hollow opening in the yarn removing area of the composite screen cloth; carrying out plate making by adopting the composite screen cloth which is qualified after the product inspection to obtain a pure opening printing screen plate; according to the manufactured pure-opening printing screen, the printing screen can achieve the effect that no steel wire blocks an ink discharging channel in a required effective area, and the situation that the steel wire influences the printability and the printing effect of an ink penetrating area is avoided.

Methods, systems, and non-transitory memory media embodying computer readable instructions for minimizing voids in front of a trailing edge of a solid rendition or linework print region printed using a photocurable flexographic printing plate having a printing surface corresponding to information in an image file. At least one solid rendition or linework image region corresponding to the solid rendition or linework print region has a pattern of “on” and “off” single pixels that correspond to openings formed by an imager in a mask layer of the plate. Micro-screen openings in an edge region of the solid rendition or linework mask region are imaged with a different size than micro-screen openings in a center region of the solid rendition or linework mask region.

The invention provides a back contact battery piece, a printing steel plate and a photovoltaic module, and relates to the technical field of photovoltaics. The back contact battery piece comprises a battery body which comprises a first surface and a second surface which are opposite to each other along the thickness direction of the battery body; the plurality of current collection electrodes are arranged on the first surface of the battery body and extend along the first direction; the plurality of current collection electrodes comprise a first current collection electrode and a second current collection electrode which are sequentially distributed along a second direction; the first direction intersects with the second direction; the insulating block is positioned in a local area of one side, far away from the battery body, of the collector electrode continuously arranged along the first direction; in the same collector electrode, the height of at least the first part covered by the insulating block is H1, the height of at least the second part not covered by the insulating block is H2, and H1 is smaller than H2. In the same current collection electrode, the height H1 of at least the first part which is covered by the insulating block and has the short circuit risk is relatively low, so that the short circuit risk is obviously reduced.

The invention relates to a method for producing a flexographic printing form from a digitally imageable, photopolymerizable flexographic printing element comprising, arranged one above the other in the aforementioned order, at least one dimensionally stable carrier (A), at least one photopolymerizable, relief-forming layer (B), a UVA-light transparent, oxygen-blocking barrier layer (C), a laser-ablatable mask layer (D), and a peelable cover film (E), wherein the method comprises at least the steps (i) peeling off the cover film (E), (ii) inscribing a mask into the laser-ablatable mask layer (D) using an IR laser, (iii) exposing the imaged flexographic printing element with UVA light through the formed mask, (iv) removing the residues of the laser-ablatable mask layer (D), the barrier layer (C), and the unpolymerized portions of the relief-forming layer (B).and (v) optionally includes post-exposure of the dried flexographic printing plate with UVA and / or UVC light, wherein layers (B), (C) and (D) are soluble or dispersible in an organic solvent, and the barrier layer (C) contains at least an oxygen-blocking binder and an oligomeric or polymeric basic adhesive component, and that at least partial removal according to step (iv) is carried out by heating and removing the unexposed areas using a developing material.

This gravure cylinder has a cylindrical or columnar shape, and is provided with a plurality of recessed parts on the outer peripheral surface, the recessed parts holding paste to be transferred to a sheet on which the paste is to be transferred. The plurality of recessed parts each have an electrode cell defining the corresponding recessed part. Let that, on the outer peripheral surface, the rotating direction is defined as Y direction and the direction orthogonal to Y direction is defined as X direction, and that the length in X direction of an outermost electrode cell located outermost on both sides in X direction is defined as Ax and the length in X direction of an inside electrode cell located inside of the outermost electrode cell in X direction is defined as Bx, then the relation of Ax>Bx holds.　

A flexographic printing plate precursor is disclosed in which the size and the number of pinholes in a heat-sensitive mask layer are reduced in a simple manner, and to provide a flexographic printing plate almost free from disadvantages caused by the pinholes, based on the flexographic printing plate precursor. A flexographic printing plate precursor comprising at least a support (A), a photosensitive resin layer (B), a heat-sensitive mask layer (C) and a cover film (D) which are laminated in this order, characterized in that the surface energy and the surface roughness (Ra) of a surface of the cover film (D) which contacts with the heat-sensitive mask layer (C) are 25.0 to 40.0 mN / m and 0.01 to 0.2 μm, respectively, and that a protection layer (E) formed from a polymer compound dispersible in a developing solution is provided between the photosensitive resin layer (B) and the heat-sensitive mask layer (C).

The utility model relates to the field of printing plates, and discloses a zinc plate with a self-cleaning coating. The zinc plate comprises a zinc plate body and is characterized in that an anti-skid bottom plate is fixedly installed at the bottom of the zinc plate body, the zinc plate body is composed of a protection layer, a base layer zinc plate, a photosensitive layer and a back paint layer, and the protection layer internally comprises a self-cleaning layer and a protection adhesive film layer. And the protective adhesive film layer arranged in the protective layer can reduce the time of stain attachment as much as possible, so that the protective layer has certain self-cleaning capability, and in the subsequent cleaning process of the zinc plate main body, the use convenience of the whole device is improved, and the service life of the zinc plate main body is prolonged. Meanwhile, the anti-skid bottom plate and the anti-skid bottom pad at the bottom of the zinc plate body can increase the friction force between the zinc plate body and the placing surface, and the anti-skid stability of the whole device in the using process is improved.

According to the manufacturing method of the screen cloth for the solar photovoltaic screen printing plate, the screen cloth is woven by adopting various warp and weft combinations, so that downstream customers can meet the requirements of various properties and the service life more flexibly according to the requirements of the customers. Warps and wefts with different diameters and different meshes are adopted for mixed weaving, according to customer requirements and market requirements, different weft diameters and different warp and weft mesh numbers are set for weaving, and the method comprises the following specific steps that S1, tungsten filaments used for weaving are wound on a raw material shaft according to reed parameter indexes; s2, enabling a tungsten filament for weaving a net to penetrate through a palm sheet and a reed, wherein the palm sheet is divided into a front sheet and a rear sheet; s3, uniformly adhering the warp yarns penetrating through the palm sheet and the reed to an adhesive tape; and S4, driving the weft yarns to weave through reciprocating motion of the rapier belt.

The invention discloses a metal-based magnetic light drum and a processing method thereof.The light drum comprises a cylindrical light drum body and an end supporting component coaxially assembled at the end of the light drum body, and a plurality of annular air grooves are distributed in the outer cylindrical surface of the light drum body at intervals in the axial direction; the annular air grooves divide the outer cylindrical surface of the drum body into a plurality of independent annular areas, and air holes penetrating through the inner side and the outer side of the drum body in the thickness direction of the drum body are distributed in each annular air groove; a cavity is machined in the outer cylindrical surface of each annular area, a magnetic attraction structure is embedded in each cavity, and the outer surface of each magnetic attraction structure and the outer cylindrical surface of the drum body form a smooth and continuous cylindrical curved surface. The method has the beneficial effects that the metal base plate is directly adsorbed on the surface of the light drum in a magnetic attraction mode, fitting is complete, the magnetic flux is uniform, bubbles or folds are avoided, the scraping risk and imaging defects of a traditional protruding structure on the surface of the plate are eliminated, the definition and consistency of printed patterns are improved, and the printing quality is improved.

To provide a screen plate that can allow printing accuracy to be improved. A screen plate comprising a plate frame and a screen gauze formed of warp and weft fibers each made of a synthetic fiber, wherein the screen gauze is stretched on the plate frame under application of a predetermined tensile force, and the thickness of the screen gauze stretched on the plate frame is 88% or less based on the thickness of the screen gauze under application of no tensile force.

A method of producing a granulated product from photopolymer printing plate materials. The method includes the steps of (a) sorting the photopolymer printing plate materials based on an identifiable property, wherein the photopolymer printing plate materials comprise one or more photopolymer layers; (b) subjecting the photopolymer printing plate materials to UV-C light from a UV-C light source for a period of time, whereby the photopolymer printing plate materials are rendered less tacky and more brittle; (c) grinding the photopolymer printing plate materials to particles; and (d) screening the particles to remove particles above a certain size and create the granulated product.

The invention provides a method for reducing the diameter of a tungsten filament of tungsten filament screen cloth, which reduces the risk of injury to operators and is good in environmental friendliness. The size precision control of the tungsten filament reducing process is high; the corrosion degree of equipment is reduced, and the maintenance cost is reduced. The method is characterized in that a mixed solution containing potassium ferricyanide, potassium hydroxide and deionized water is adopted as an etching solution for reducing the tungsten filament, the mass percent of potassium ferricyanide in the etching solution is 5%-20%, and the mass percent of potassium hydroxide in the etching solution is 3%-10%.

The invention relates to a method for producing a flexographic printing form from a digitally imageable, photopolymerizable flexographic printing element comprising, arranged one above the other in the aforementioned order, at least one dimensionally stable carrier (A), at least one photopolymerizable, relief-forming layer (B), a UVA-light transparent, oxygen-blocking barrier layer (C), a laser-ablatable mask layer (D), and a peelable cover film (E), wherein the method comprises at least the steps (i) peeling off the cover film (E), (ii) inscribing a mask into the laser-ablatable mask layer (D) using an IR laser, (iii) exposing the imaged flexographic printing element with UVA light through the formed mask, (iv) removing the residues of the laser-ablatable mask layer (D), the barrier layer (C), and the unpolymerized portions of the relief-forming layer (B).and (v) optionally includes post-exposure of the dried flexographic printing plate with UVA and / or UVC light, wherein layers (B), (C) and (D) are soluble or dispersible in an organic solvent, and the barrier layer (C) contains at least an oxygen-blocking binder and an oligomeric or polymeric basic adhesive component, and that the at least partial removal according to step (iv) is carried out by heating and removing the unexposed areas using a developing material.

The utility model relates to a capacitor printing plate, and belongs to the technical field of capacitors. According to the utility model, the opposite sides of any two adjacent first cutting line patterns are respectively provided with the first convex part and the first concave part, and the opposite sides of any two adjacent second cutting line patterns are respectively provided with the second convex part and the second concave part, so that the gap accumulation in the laminated structure of the printing sheet can be effectively reduced; therefore, the interlayer binding force of the laminated structure of the printing sheet is improved, the phenomena of delamination and lamination precision deterioration in the subsequent processing process are avoided, and the qualified rate of capacitor products is further ensured.

Provided are a lithographic printing plate precursor including a support, and an image recording layer on the support, in which the image recording layer contains organic particles containing an addition polymerization type resin that has a constitutional unit A having a hydrogen bond-donating site, and a content of the constitutional unit A in the addition polymerization type resin is greater than 20% by mass with respect to a total mass of the addition polymerization type resin; and a method of preparing a lithographic printing plate using the lithographic printing plate precursor.

The utility model provides a printing template for enhancing label strength, which comprises a template bottom sheet, a plurality of groups of printing templates used for label printing are arranged above the template bottom sheet, and connecting sheets used for integral connection are fixedly connected to one ends, far away from the center of the template bottom sheet, of the plurality of groups of printing templates at the edge of the template bottom sheet. Compared with the prior art, the printing template base has the advantages that the template bottom piece, the printing templates and the connecting pieces are additionally arranged, the multiple sets of printing templates are laid above the template bottom piece in an integrated connecting structure through the connecting round bases, the edges of the printing templates are integrally connected with the connecting pieces through the connecting round bases, and the template base is high in strength and good in printing effect. The printing template is additionally arranged, all layers of the template base are bonded through the middle bonding layers, the bonding force between all the layers is enhanced, layering is avoided, and therefore the strength of the label can be further enhanced in an auxiliary mode.

Provided are an on-press development type lithographic printing plate precursor including: a support; and an image-recording layer on the support, in which the image-recording layer contains an electron-accepting polymerization initiator, an electron-donating polymerization initiator, an infrared absorber, and a salt compound A, and an HOMO value of an anion constituting a salt in the salt compound A is -6.2 eV or more and -4.4 eV or less, and a method of preparing a lithographic printing plate or a lithographic printing method using the on-press development type lithographic printing plate precursor.

The problem to be solved by the invention is to provide a core-sheath composite monofilament for a screen gauze, the core-sheath composite monofilament having excellent abrasion resistance when woven into a high-definition mesh fabric and excellent anti-halation effects when forming a printing pattern on a screen without requiring a dyeing process. This core-sheath composite monofilament for a screen gauze satisfies requirements (a) to (c). (a) The reflectance in the entire region having an optical wavelength of 300 to 450 nm is 20.0% or less. (b) Only the core section contains a light-absorbing agent. (c) The breaking strength is between 7.0 cN / dtex and 9.0 cN / dtex.

The present invention provides an on-press developable lithographic printing plate precursor, and a method for producing a lithographic printing plate or a lithographic printing method using the on-press developable lithographic printing plate precursor. The on-press developable lithographic printing plate precursor comprises a support, an image recording layer, and an outermost layer in sequence. The image recording layer comprises an infrared absorber, an electron-donating polymerization initiator, and a polymerizable compound. The HOMO value of the infrared absorber and the HOMO value of the electron-donating polymerization initiator are 0.60 eV or less, and the outermost layer comprises a color-changing compound.

An on-press development type lithographic printing plate precursor includes a support, and an image-recording layer on the support, in which the image-recording layer contains an infrared absorber, a polymerization initiator, a polymerizable compound, and at least one compound selected from the group consisting of a compound represented by Formula (1) and a compound represented by Formula (2) (in Formulae (1) and (2), Ra1 and Ra2 represent an alkyl group, Rbi and Rbi represent an alkyl group, Rb2 and Rb4 represent an alkyl group, and EWG's each independently represent a hydrogen atom or an electron-withdrawing group, provided that at least one of the four EWG's in Formula (1) represents an electron-withdrawing group).

Reusable composite stencils for spray processes, particularly for spray processes used in the fabrication of integrated circuit devices, may be fabricated having a permanent core and at least one sacrificial material layer. Thus, in operation, when a predetermined amount of the sacrificial material layer has been ablated away by a material being sprayed in the spray process, the remaining sacrificial material layer may be removed and reapplied to its original thickness. Therefore, the permanent core, which is usually expensive and / or difficult to fabricate, may be repeatedly reused.

The invention relates to a high-sensitivity treatment-free negative image CTP plate material and a preparation method thereof, and belongs to the technical field of CTP plate materials, the treatment-free negative image CTP plate material comprises a plate base and a photosensitive layer, the photosensitive layer contains a modified graphene oxide composite material, the modified graphene oxide composite material can promote rapid conduction of heat, strengthen scratch resistance and improve the sensitivity of the photosensitive layer, and the modified graphene oxide composite material is essentially formed by compounding an infrared absorption dye new indocyanine green onto nitrogen-aluminum co-doped graphene oxide, so that the infrared absorption dye new indocyanine green can be effectively absorbed by the nitrogen-aluminum co-doped graphene oxide; the specific preparation method comprises the following steps: doping nitrogen and aluminum elements in graphene oxide by using urea and aluminum nitrate nonahydrate to prepare nitrogen-aluminum co-doped graphene oxide, and then adding amino-modified new indocyanine green to react by taking dehydration esterification as a reaction principle, thereby obtaining the nitrogen-aluminum co-doped graphene oxide. The amino-modified novel indocyanine green is prepared from a short-carbon-chain diamine compound and novel indocyanine green under the action of amino and halogen.

The invention provides an oxygen barrier layer, a preparation method of the oxygen barrier layer and a flexible resin plate with textured flat-top lattice points on the surface, polymer particles are formed by in-situ polymerization of polyurethane resin containing free isocyanate monomers and oxygen barrier resin containing hydroxyl in an organic solvent, and solid filler does not need to be additionally added; the molar content of hydroxyl in the oxygen inhibitor resin is greater than the molar content of isocyanate in the isocyanate monomer, so that the oxygen inhibitor is excessive, and the oxygen inhibitor resin, the polyurethane resin and the flatting agent which do not participate in the reaction jointly participate in film formation. Raw materials of the oxygen barrier layer can be dissolved in a mainstream commercially available flexographic flushing medium, such as an organic solvent containing tetrachloroethylene / n-butyl alcohol or a high-end environment-friendly developing solution containing terpene or commercially available Shanghai sensitive morning, and a photopolymerization reaction does not occur. After exposure, laser ablation and plate washing by a flexible plate washing medium, the flexible resin plate with the flat-top lattice points with the sand meshes on the surface is prepared, and the oxygen barrier layer is completely removed without residues in the plate washing process.

A waterless planographic printing original plate which sequentially comprises at least a base material, a heat-sensitive layer and an ink-repellent layer in this order, wherein: the base material has a white layer or a white surface; and the heat-sensitive layer contains at least (a) an infrared absorbing dye that has a maximum absorption wavelength of 700 to 1,000 nm, (b) a dye that develops a color by acceptance of a proton, and (c) a proton-donating compound. Consequently, the present invention provides a waterless planographic printing original plate which enables the achievement of a high contrast between an image part and a non-image part by means of light exposure without requiring a special layer.

To provide a single layer decorative sheet which is stuck to a surface of a fixture, face bar or the like in the room and to which touch feeling can be given by applying a resin added with a filler onto the single layer decorative sheet.SOLUTION: A manufacturing method of a single layer decorative sheet 10 in which an original fabric layer 20, a pattern printing layer 21 printed with a pattern, a primer coat layer 22 and a top coat layer 23 are laminated in the order, comprises the steps of: forming a contact pattern by applying an ultraviolet curable resin added with a filler to the surface of the primer coat layer 22 correspondingly to the pattern of the pattern printing layer 21 by using gravure printing; and forming the top coat layer 23 by irradiating the ultraviolet curable resin with the ultraviolet ray and curing the resin. The particle diameter of the filler is 20 to 40 μm. The printing plate when gravure-printing the top coat layer 23 has the line number equal to or greater than 100 lpi. The printing plate has an average value less than 80 of histogram when decomposing the concentration difference of the pattern of the pattern printing layer 21 into 256 gradations on the image data.SELECTED DRAWING: Figure 1

There are provided an on-press development type lithographic printing plate precursor including a support, and an image-recording layer on the support, in which the image-recording layer contains two or more electron-donating polymerization initiators and an electron-accepting polymerization initiator, and the two or more electron-donating polymerization initiators are borate compounds, and at least one of the two or more electron-donating polymerization initiators is a borate compound represented by Formula (1), in which, R1, R2, R3, and R4 each independently represent a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkenyl group, or a substituted or unsubstituted alkynyl group, and R1, R2, R3, and R4 may each independently have a ring structure, provided that at least one of R1, R2, R3, or R4 is different from the other, and M+ represents a cation.