754results about "Forme preparation" patented technology

A pattern which does not appear at a flat portion in normal binarization processing is set as a code pattern, and a code formed from this pattern is attached. At this time, code attachment with little degradation in image quality is implemented by selecting an unnoticeable pattern.

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.

IR-sensitive lithographic printing plate precursors provide a stable print-out image using a unique IR radiation-sensitive composition in an infrared radiation-sensitive image-recording layer. This IR radiation-sensitive composition includes: (1) a free radical initiator composition that comprises an electron-donating agent; (2) a free radically polymerizable composition; and (3) a color-changing compound that is represented by the Structure (I) having a conjugated carbon chain between the aromatic terminal groups. The compound also has a —SO2—R3 group wherein R3 represents alkyl, aryl or heteroaryl groups. After IR imaging, these precursors exhibit desirable printout images both fresh and after dark storage. The precursors can be developed off-press or on-press.

The invention relates to the technical field of printing screens, in particular to a screen and a manufacturing method thereof, a solar cell and a production method thereof, and a photovoltaic module. The screen printing plate comprises a film body, graphical grid line printing holes are formed in the film body, the grid line printing holes comprise grid line main body printing holes and lap joint printing holes which are communicated, and the grid line main body printing holes are configured to be consistent with an auxiliary grid printing area or a main grid printing area in graph. The lap joint printing hole is configured to be consistent with the pattern of the lap joint printing area; in the thickness direction of the film body, one end of each grid line main body printing hole is exposed out of the first surface, and the other end of each grid line main body printing hole is positioned in the film body; the lap joint printing hole penetrates through the film body, and the two ends of the lap joint printing hole are exposed out of the first face and the second face respectively. When the screen printing plate is used for printing, not only can the slurry cost be reduced, but also higher printing quality can be achieved.

The invention relates to the technical field of screen printing plates, in particular to a printing screen printing plate, a manufacturing method, a solar cell and a photovoltaic module. The printing screen comprises a screen body and a reinforcing part. A printing groove extending in the first direction is formed in the screen printing plate body and penetrates through the thickness direction of the screen printing plate body. The reinforcing part is arranged at the position, provided with the printing groove, of the screen printing plate body, the reinforcing part is arranged corresponding to the part of the printing groove, at least part of the reinforcing part is hollowed out, and the hollowed-out position of the reinforcing part is communicated with the printing groove. The printing screen has the advantages of high printing quality and high structural strength, can print continuous current collection grid lines, facilitates current collection of the current collection grid lines, and can meet the process and test requirements of electrifying a solar cell.

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 printing screen and a manufacturing method thereof. The printing screen comprises a screen body and a filiform structure. A printing groove is formed in the screen printing plate body and penetrates through the screen printing plate body in the thickness direction of the screen printing plate body, and the length direction of the printing groove is the first direction. The filamentous structure is arranged at the position of the printing groove on the screen printing plate main body; in the first direction, the filiform structure corresponds to a local area of the printing groove; the filiform structure extends along a second direction, and the second direction intersects with the first direction. According to the screen printing plate, the silk-shaped structure is locally arranged, so that the screen printing plate body has high structural strength and long service life, the rest area, not provided with the silk-shaped structure, of the printing groove has good slurry passing ability, and the printing appearance of grid lines is good.

The invention relates to the technical field of screen production, in particular to a double-sided composite reinforced printing screen and a manufacturing method thereof. Weaving metal wires to obtain screen cloth, and fixing the screen cloth on a screen frame; coating the bottom surface of the screen cloth with a high polymer material to form a first high polymer material layer on the screen cloth; etching the first high polymer material layer in a laser etching mode to form an opening pattern; coating a PI composite material on the top surface of the screen cloth to obtain a PI layer; coating the front surface of the PI layer with a high polymer material to form a second high polymer material layer; the second high polymer material layer is etched in a laser etching mode, the double-sided composite reinforced printing screen is obtained, the first high polymer material layer and the second high polymer material layer are additionally arranged, screen point position abrasion caused by the downward pressing pressure and the depth of a scraper is avoided, and the printing service life is prolonged.

The invention relates to the technical field of screen printing plates, in particular to a printing screen printing plate, a manufacturing method and a solar cell. The screen printing plate comprises a screen printing plate layer, the screen printing plate layer is provided with a printing groove extending in the first direction, the printing groove penetrates through the screen printing plate layer in the thickness direction of the screen printing plate layer, the printing groove comprises a plurality of first groove sections and second groove sections which are alternately connected in the first direction, and the maximum width of the first groove sections in the second direction is larger than that of the second groove sections in the second direction; the minimum width of the first groove section in the second direction is larger than or equal to the maximum width of the second groove section in the second direction, and every two of the first direction, the second direction and the thickness direction of the screen printing plate layer are perpendicular to each other; the groove depth size of the first groove section in the thickness direction of the screen printing plate layer is smaller than the groove depth size of the second groove section in the thickness direction of the screen printing plate layer. The grid line printed by the printing screen not only integrates the welding performance of the assembly and the low resistance performance of the grid line, but also can reduce the cost.

The invention relates to the technical field of printing screens, in particular to a printing screen with a screen steel wire shaping structure and a manufacturing method thereof, and the printing screen with the screen steel wire shaping structure comprises a screen frame, metal screen cloth, a UV film layer, a primer layer and a high polymer material layer; the metal screen cloth is stretched by preset tension and fixed on the inner side of the screen frame; coating the surface of the metal screen cloth with a UV film layer, and adhering a high polymer material to the surface of the UV film layer through primer to form a primer layer and a high polymer material layer; etching the high polymer material layer in a laser etching mode to form a plurality of opening patterns, wherein the metal screen cloth is exposed out of the opening patterns; the UV film layer and the high polymer material layer are arranged on the metal screen cloth, so that deformation of the metal screen cloth caused by tension change or mechanical vibration of warps and wefts of the metal screen cloth can be prevented, and the accuracy of the size of a printed pattern is improved.

Provided is an on-press development type lithographic printing plate precursor having two or more maximal absorption wavelengths in a wavelength range of 760 nm to 900 nm, in which in a case where the on-press development type lithographic printing plate precursor is subjected to exposure to infrared having a wavelength of 830 nm at an energy density of 110 mJ / cm2, in a portion subjected to the exposure, a brightness change ΔL before the exposure and after storage subsequent to the exposure for 24 hours under conditions of 25°C and 70% RH is 3.0 or more. Also provided are a method of preparing a lithographic printing plate and a lithographic printing method in which the on-press development type lithographic printing plate precursor is used.

A system for moving a flexible plate, in particular a printing plate or a printing plate precursor, over a support surface in the direction of a treatment station, such as a washer station. The system includes a support configured for supporting the plate on a support surface thereof, and intended to be located upstream of the treatment station. A movement means includes a plate engagement means configured to contact the plate in such a way that the plate is engaged by adhesion or by friction or a combination thereof, in a movement mode, and that the plate can be slid over the support surface by controlling the movement means in the movement mode. A control means is configured to control the movement means such that the plate is slid over the support in the direction of the treatment station.

System for moving a flexible sheet (P), in particular a printing sheet or a printing sheet precursor, on a support surface in the direction of a treatment station (S2), such as a washing station, said system comprising: a support body (100) configured to support a sheet on its support surface and intended to be located upstream of said treatment station; a moving device (200) comprising sheet engagement means (250) configured to come into contact with a sheet in such a way as to engage with said sheet by adhesion or friction or a combination thereof in a moving mode and in which, by controlling said moving device (200), said sheet can slide on said support surface; a control device configured to control said moving device so as to cause said sheet to slide on said support body in the direction of said treatment station.

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.

There is provided an on-press development type lithographic printing plate precursor including a support, and an image-recording layer provided on the support, in which the image-recording layer contains (1) or (2).(1) a borate compound represented by Formula (1) and an electron-accepting polymerization initiator(2) a borate compound represented by Formula (1a)in Formula (1) and Formula (1a), 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. M+ represents a cation. Ma+ represents an iodonium cation.

The utility model provides a monofilament diaphragm composite screen cloth structure. The monofilament diaphragm composite screen cloth structure comprises a first-material screen cloth and a second-material screen cloth, the second material monofilament membrane comprises a plurality of yarns and a polymeric membrane layer, the yarns are arranged in the polymeric membrane layer, the polymeric membrane layer comprises a plurality of holes, and the yarns extend in the same direction and are parallel to one another; the screen cloth made of the first material and the monofilament diaphragm made of the second material are arranged among the combined film layers; wherein the first-material screen cloth and the second-material monofilament membrane are partially overlapped, the holes are formed in the position, overlapped with the first-material screen cloth, of the second-material monofilament membrane, and the combining membrane layers combine and clamp the position, overlapped with the first-material screen cloth, of the second-material monofilament membrane. And the combined film layers penetrate through the holes and are fixedly combined with one another. The monofilament membrane composite screen cloth structure can be suitable for screen cloth which does not comprise warp and weft yarn cross weaving holes.

The invention discloses a high-precision size control nickel plate electroforming method and equipment, and relates to the field of plate making in the printing and packaging anti-counterfeiting industry, and the nickel plate electroforming method comprises the following steps: step 1, base plate pretreatment, step 2, pattern positioning and step 3, electroforming operation; in order to solve the problem that the nickel plate is easy to twist or pattern deviation in the same direction in the prior art, the nickel plate electroforming size precision is remarkably improved by changing the main and auxiliary grooves into left and right positions, optimizing the groove liquid circulation mode, enhancing the conductivity, specifically adjusting the pattern position and other technical means, the problems of plate twisting and pattern deviation are effectively solved, and the nickel plate electroforming quality is improved. And the method is particularly suitable for the fields of cigarette packet manufacturing and the like with extremely high positioning precision requirements.

The invention discloses a method for prolonging the service life of a grid line plate, which is characterized in that two layers of films are arranged in interval areas of adjacent grid lines, so that the whole grid line plate is not easy to generate broken holes, and the long-term stable and reliable use of the grid line plate is ensured. The method comprises the following steps: pre-sticking an inner layer film on a scraper surface, corresponding to a scraper, of a grid line plate, then cutting out an area, corresponding to a grid line, of the inner layer film through laser, then removing the inner layer film corresponding to the position of the grid line, and then sticking an outer layer film to the outer surface of the inner layer film according to a preset position.

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.

This disclosure relates to a coating apparatus for applying a single layer of particles to a receiving surface. The apparatus includes a pressurized air source; a dressing chamber partially defined by the receiving surface, into which an airflow is supplied from the air source; an air return path for returning air from the dressing chamber to an air inlet of the air source to form an air circulation loop; and a metering device for introducing particles to be coated onto the receiving surface into the air circulation loop, wherein a particle deflector is positioned in the airflow path to break up agglomerated particles carried by the airflow before coating the receiving surface with the particles. A method for applying a particle layer is also provided, as well as a printing system that benefits from this coating apparatus.

The invention pertains to a photosensitive element, particularly a photopolymerizable printing form precursor; and, a process of making the photosensitive element. The printing form precursor includes a cover sheet, a layer of a photosensitive composition, and a digital layer, or infrared ablation layer, that is adjacent to a side of the photosensitive layer. A microcell patterned is embossed onto the infrared ablation layer or an overcoat / barrier layer on the infrared ablation layer. Since the microcell pattern layer is integral with the printing form precursor, digital imaging can occur rapidly with relatively low resolution optics to form a mask without needing to also form a microcell pattern of the digital layer. The printing form precursor having the integrated microcell pattern layer facilitates the preparation of relief printing forms to have a print surface suitable for printing solids with uniform, dense coverage of ink.

The invention relates to a finishing method and a finishing device for an intaglio printing roller for anti-counterfeit printing. The trimming method comprises the following steps that (1) wax filler is arranged on one side or two sides of the ink cell position needing anti-counterfeiting, the wax filler is used for blocking the ink cell on the corresponding side, and the ink cell section on one side of the wax filler or the ink cell section between two pieces of wax filler forms a trimming section; and (2) spraying an anti-corrosion wax layer into the finishing section in the step (1). And (3) a wax suction pipe with a heating wire at the end extends into the finishing section in the step (2), the heating wire melts the wax layer on the bottom wall of the finishing section, and the melted wax liquid is sucked away through the wax suction pipe. And (4) corrosive liquid is injected into the finishing section in the step (3) so as to corrode the bottom wall of the finishing section. And (5) after corrosion is conducted for a set time, hot water with the temperature being 50 DEG C or above is adopted for flushing the intaglio printing roller so as to clean wax filler and a wax layer on the intaglio printing roller. Ink cells of patterns on the printing roller can be trimmed, and a better anti-fake effect is achieved.

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 present application relates to a kind of nickel alloy screen for printing and its manufacturing method, comprising the following steps: step one: select nickel alloy plate as original model;Step two: the surface cleaning of the original model selected in step one is carried out, and surface dirt and oil stain are removed;Step three: using chemical cathode deposition method, with original model as material, add electroforming liquid, complete nickel net integrated molding work by electroforming;Step four: the electroformed nickel net after being treated in step three is demoulded, and nickel alloy net is obtained;Step five: the nickel alloy net after being demoulded in step four is hot melt compounded with PE film by hot melting machine.The present application is integrally formed by micro electroforming, processed and formed by cathode deposition phenomenon in electrochemical process, has very high replication accuracy and dimensional accuracy, can replace the use of traditional screen gauze, and because of its flexibility of arbitrary design, currently has designed multiple schemes to match the use of different scenes.

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 an engraving system for gravure ink cell volume engraving, which comprises an automatic measuring camera, a host, a PCIE serial port card, a signal controller, a bus terminal, a contact memory and an engraving head, the host, the PCIE serial port card, the signal controller, the bus terminal, the contact memory and the engraving head are connected in sequence, the host is in communication connection with the automatic measuring camera, and the automatic measuring camera is in communication connection with the signal controller. The contact type memory stores parameters of an ink cell outline, and the host controls the engraving head to engrave the ink cell through the PCIE serial port card, the signal controller, the bus terminal and the contact type memory in sequence according to a control signal. According to the utility model, the PCIE serial port card, the signal controller, the bus terminal, the contact memory, the engraving head and the automatic measurement camera are added, the volume of the ink cell is calculated firstly, then the engraving head is controlled to engrave, and the volume of the ink cell is accurately controlled to ensure that the ink contents among the ink cells are kept consistent.

A lithographic printing plate precursor is disclosed including a support and a coating comprising a photopolymerisable layer including a polymerisable compound and a photoinitiator, characterized in that the coating comprises a hydrophilic adhesion promoting copolymer including at least one monomeric unit according to Formula I and at least one monomeric unit according to Formula II; and at least one group and / or moiety including a phosphor atom.

The present application relates to the technical field of precision printing screen manufacturing, and particularly relates to a manufacturing method of a full-opening metal screen, which comprises the following steps: preparing a screen frame, a polyester screen cloth and a metal substrate, and demarcating an effective printing area and a peripheral fixed area in the screen frame; stretching and fixing the polyester screen cloth on the screen frame, so that the part of the polyester screen cloth corresponding to the peripheral fixed area forms a force-bearing screen cloth layer; taking the metal substrate as a temporary bearing substrate, forming a full-opening metal screen cloth through photolithography and electroforming deposition, and setting a width compensation amount of a mask pattern according to the finished product pattern opening line width and the subsequent nano coating thickness; separating the full-opening metal screen cloth and fixing it with the force-bearing screen cloth layer, and removing the polyester screen cloth in the effective printing area; roughening the doctor blade surface of the full-opening metal screen cloth, and forming a nano coating on the doctor blade surface and the inner wall of the pattern opening. The method makes the force-bearing structure and the pattern opening structure be set in different areas, and makes the coating thickness correspond to the finished product opening line width control.

A negative-working lithographic printing plate precursor has a negative-working infrared radiation-sensitive image-recording layer that has a) two or more free radically polymerizable components; b) an initiator composition capable of generating free radicals; and c) one or more infrared radiation absorbing cyanine dyes. The a) two or more free radically polymerizable components comprise a combination of a urethane (meth)acrylate and a polyester (meth)acrylate, which together, comprise 75-100 weight % of all free radically polymerizable components. The weight ratio of the urethane (meth)acrylates to the polyester (meth)acrylates is from 90:10 to and including 35:65. The urethane (meth)acrylates comprise one or more urethane linkages and at least 4 acrylate or methacrylate ester groups. Each of the one or more polyester (meth)acrylates is free of a urethane linkage and is represented following structure (I). These precursors are less sensitive to ambient ozone and can be infrared radiation imaged and developed on-press during lithographic printing.