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269 results about "Offset printing" patented technology

Offset printing is a commonly used printing technique in which the inked image is transferred (or "offset") from a plate to a rubber blanket, then to the printing surface. When used in combination with the lithographic process, which is based on the repulsion of oil and water, the offset technique employs a flat (planographic) image carrier. Ink rollers transfer ink to the image areas of the image carrier, while a water roller applies a water-based film to the non-image areas.

Double-lifting swing arm type offset printing mechanism

The utility model relates to a double lifting swing arm type offset printing mechanism which is characterized in that a printing roller station, a first lifting swing arm and a second lifting swing arm are arranged on a rack, a first mounting part for mounting a transfer printing roller is arranged on the first lifting swing arm, a second mounting part for mounting a printing roller is arranged on the second lifting swing arm, and the printing roller station is arranged above the first mounting part; the second mounting portion is disposed below the first mounting portion. A double-lifting swing arm structure is adopted, a transfer printing roller and a printing roller can be assembled, the corresponding transfer printing roller and the printing roller are lifted and lowered in a swing lifting mode, a large operation space can be vacated for assembly after the transfer printing roller and the printing roller swing and are separated from each other along with corresponding swing arms, the space occupied by the double-lifting swing arm structure is relatively compact, and the disassembly and assembly convenience of all the rollers is improved; the assembly of transfer rollers with different sizes and diameters and the like is met, the operation is stable, the size of the closing pressure is relatively convenient to debug and is not easy to interfere with each other when the closing pressure and the separating pressure are separated, and the closing pressure is lifted upwards and is not easy to conflict during the closing pressure.
Owner:ZHEJIANG WEIGANG TECH CO LTD

High-stability digital discharge printing ink-jet ink and preparation process thereof

The invention relates to the technical field of ink, in particular to high-stability digital discharge printing ink-jet ink and a preparation process thereof. The high-stability digital discharge printing ink-jet ink is prepared from the following raw materials in parts by weight: 60-80 parts of a solvent, 10-20 parts of a discharge agent, 2-4 parts of filler, 1-3 parts of a humectant and 0.4-1 part of an active agent. According to the invention, sodium alginate is used as natural anionic polysaccharide, nano calcium carbonate in the filler can be wrapped through hydrogen bonds and electrostatic interaction by using hydroxyl and carboxyl contained in a molecular chain of sodium alginate to form composite structure microspheres, and Span 80 and paraffin can further modify the surface morphology of the microspheres by using hydrophobic interaction of Span 80 and paraffin; after the ink is dried, the composite structure microspheres can be combined with ink components, a continuous film is formed on the surface of a fabric, nano calcium carbonate and adsorbed pigment molecules are fixed, damage of external factors to pigments is isolated, the coloring life is prolonged, and therefore the stability of the digital discharge printing ink-jet ink is improved.
Owner:QINGDAO KELI DIGITAL PRINTING TECHNOLOGY CO LTD

Dry powder offset printing

Systems, methods, and other embodiments associated with high speed, high precision direct deposition of patterned dry powder. In one embodiment, an example apparatus includes an intermediate substrate having an exterior surface configured to move patterned dry powder towards a target substrate, the exterior surface further configured to move and enclose a volume, a patterning device communicably coupled to the intermediate substrate and configured to form patterned dry powder on the exterior surface of the intermediate substrate, and a pressing mechanism configured to apply heat and pressure to the patterned dry powder positioned vertically above an upper surface of the target substrate to disrupt the adhesion of the patterned dry powder positioned vertically above the upper surface of the target substrate and transfer and adhere the patterned dry powder to the upper surface of the target substrate as a fused patterned layer.
Owner:KERACEL INC

Automatic stacking device of offset printing high-grade packaging box production line

The invention relates to the technical field of automatic stacking devices, and discloses an automatic stacking device of an offset printing high-grade packaging box production line, the automatic stacking device comprises a supporting plate, a motor is fixedly connected to the surface of the supporting plate, a bidirectional threaded rod is fixedly connected to the output end of the motor, and a threaded plate is in threaded connection to the surface of the bidirectional threaded rod; the end, away from the two-way threaded rod, of the threaded plate is slidably connected with the surface of a sliding rod, and the surface of the sliding rod is fixedly connected with a right-angle plate. By arranging the positioning mechanism, when a packaging box is conveyed to the position below the supporting plate through the conveying device, an electric telescopic rod is started to push the supporting plate to move downwards, the supporting plate can drive a positioning plate to move downwards at the moment, and the packaging box is effectively separated through cooperation of a push rod and a push plate; and therefore, the positioning plates are prevented from being blocked, and the packaging box can be positioned and fixed through the four positioning plates.
Owner:SHANDONG HUASHANG PRINTING TECH CO LTD

Printing ink heating device of offset press

The utility model discloses a printing ink heating device of an offset press, and particularly relates to the technical field of offset presses, the printing ink heating device comprises a printing ink barrel, the top surface of the printing ink barrel is fixed and communicated with a feeding pipe, the bottom wall of the printing ink barrel is fixed and communicated with a discharging pipe, and a bottom heating ring and a top heating ring are respectively connected in the printing ink barrel in a sliding mode. The printing ink barrel drives the bottom heating ring and the top heating ring to slide up and down through a driving mechanism, a first threaded rod is fixedly installed in the printing ink barrel, and a threaded sleeve is connected to the first threaded rod in a threaded mode. Meanwhile, the bottom sinking and caking of the ink are broken, the fluidity of the ink is kept, and the discharging pipe can be kept unblocked through reciprocating sliding of the cleaning pin and the cleaning ring in the discharging pipe, so that blockage of the discharging pipe is avoided.
Owner:HUBEI HEJIA FARM PRODUCE CO LTD

Particle surface printing process and printed matter

The invention provides a particle surface printing process and a printed matter, and the printing process comprises the following steps: selecting basic color ink, and adding an acrylate modified polysiloxane-polyethylene wax composite additive into the basic color ink to obtain modified color ink; the modified color ink is applied to the surface of the printed matter through first printing equipment; uV gloss oil is applied to the surface of the modified color ink which is not dried after printing through second printing equipment; and enabling the assistant color ink layer and the UV gloss oil to be subjected to surface energy difference driven directional aggregation reaction by utilizing a UV curing lamp, so as to form a particle surface layer with a micron-sized granular structure. Compared with an existing reverse glazing process, the reverse glazing process has the advantages that the process steps are obviously reduced, the matte visual effect and the gravel touch effect are obtained simultaneously in one-time online offset printing, the consumption of special UV gloss oil can be reduced by about 20-30%, and the overall production efficiency is improved by about 15-25%.
Owner:SHANGHAI TOBACCO GROUP CO LTD +1

Paper smoothing and cutting mechanism for cigarette case offset printing processing

The invention relates to the field of cigarette case production, in particular to a paper smoothing and cutting mechanism for cigarette case offset printing processing, which comprises a support table, a suction mechanism is mounted at the top of the support table, the suction mechanism comprises a shell, a connecting plate is movably connected to the top of the shell, and an air pump is connected to the top of the connecting plate. The air inlet end of the air extracting pump communicates with a hose, the bottom of the hose communicates with a U-shaped pipe, and the bottom of the U-shaped pipe communicates with a first pressing plate. Cigarette case paper can be adsorbed, the adsorbed paper can be transferred and fed, after die cutting of the cigarette case paper is completed, feeding operation can be automatically carried out, the paper is accurately conveyed to a printing processing area, manual paper transferring is not needed, the labor and time cost is greatly saved, the overall production efficiency is remarkably improved, and the production efficiency is improved. And large-scale and high-efficiency cigarette case printing production requirements can be better met.
Owner:SHANXI JINYE PRINTING CO LTD

A new method for measuring isopropanol concentration by means of inclination angle and application thereof

This invention belongs to the field of concentration detection technology and discloses a novel method and application for measuring isopropanol concentration based on tilt angle. The method includes: sampling and pretreatment of the mixed solution; tilt angle detection and specific gravity calculation; data fitting and concentration correlation; data transmission and cloud platform uploading; and real-time display and closed-loop monitoring. This invention is specifically adapted to the mixed solution system of dampening solution, isopropanol, and water in the water tank of offset printing presses. It is unaffected by small amounts of impurities in the solution, and the equipment is waterproof and dustproof, adapting to the industrial environment of printing workshops. Compared with traditional manual sampling or dedicated concentration meter measurement methods, this invention is simple to operate, responds quickly, has low detection costs, and can provide real-time concentration data feedback. It is suitable for online monitoring of isopropanol concentration in industrial production scenarios such as offset printing, and has strong practicality and promotional value.
Owner:QINGDAO CHENXUN SOFTWARE TECH CO LTD

Waste offset printing ink recovery treatment method and application

The invention discloses a waste offset printing ink recovery treatment method and application, and belongs to the technical field of printing ink, the recovery treatment method comprises the following steps: mixing and stirring waste offset printing ink and n-hexane through pretreatment, and removing solid-phase slag through centrifugal separation to obtain a liquid phase; concentrating the liquid phase, recovering the solvent and reserving concentrated slurry; secondly, directionally dissolving the low-molecular resin and the high-molecular resin by butyl acetate and ethylene glycol diacetate respectively through two-stage counter-current extraction and centrifugal separation to obtain a low-molecular resin solution, a high-molecular resin solution and pure pigment slurry; mixing the two resin solutions, recovering the solvent through multi-tower rectification, and refining through short-path molecular distillation to obtain regenerated resin; and finally, performing ultrasonic purification, modification and spray drying on the pigment slurry to obtain the regenerated pigment. According to the waste offset printing ink recycling treatment method and application, an efficient and reliable solution is provided for recycling of waste offset printing ink.
Owner:YUNNAN XILE TECH CO LTD

Doctor

A doctor (20), in particular for printing cylinders and coating systems, includes a doctor edge (21), a doctor body (22), and a curved blade profile (25) which is formed between the doctor edge (21) and the doctor body (22). In order to produce a doctor (20) which reduces the maintenance requirements of a gravure, flexographic, offset and / or digital printing machine and increases the service life of a doctor (20), according to the invention the extension of the curved blade profile (25) from the doctor edge (21) to the doctor body (22) is square or cuboid and / or the extension of the curved blade profile (25) from the doctor edge (21) to the doctor body (22) has at least one turning point (26).
Owner:TKM MEYER GMBH

Rubber roller fixing device of offset press

The utility model discloses a rubber roller fixing device of an offset press, which comprises a rubber roller, two offset press side plates arranged in the middle of the fixing device and respectively clamped with the left end face and the right end face of the rubber roller, an outer bearing arranged in the offset press side plates and fixedly connected with the offset press side plates, an inner bearing arranged in the outer bearing and rotationally connected with the inner side face of the outer bearing, and an outer bearing arranged in the outer bearing and fixedly connected with the inner side face of the inner bearing. The two roller shafts are fixedly connected with the left end face and the right end face of the rubber roller respectively, the outer side faces of the roller shafts are connected with the inner bearings in a clamped mode, the outer covers are arranged on the outer side faces of the offset press side plates and are in threaded connection with the outer side faces of the offset press side plates, and a rotating shaft of the rotating motor penetrates through the outer side face of one outer cover and then is in threaded connection with the outer end of one roller shaft. The connecting pieces are evenly distributed on the outer side face of the roller shaft, one ends of the connecting pieces are fixedly connected with the inner side face of the inner bearing, and the other ends of the connecting pieces are connected with the outer side face of the roller shaft. The beneficial effect of the utility model is that the stability is higher.
Owner:TONGLU EAST PRINTING & KNITTING CO LTD

Method for detecting undesired ink application on substrate sheet in offset printing press

The invention relates to a method for detecting an undesired ink application (set-off) on a substrate sheet in an offset printing press, wherein a measurement image and a reference image are captured by means of at least one camera and a computer-assisted comparison is carried out. The image is acquired in a region of the substrate sheet that is not in contact with the ink.
Owner:HEIDELBERGER DRUCKMASCHINEN AG

External ink storage device of four-color offset press

The utility model discloses an external ink storage device of a four-color offset press, relates to the technical field of four-color offset presses, and solves the problems that after an existing external ink storage device stores ink, if the external ink storage device is not used for a period of time, the ink in the external ink storage device is precipitated, and the existing external ink storage device generally uses the ink directly, so that the ink storage efficiency is low. The utility model relates to an ink jet device which solves the problems that an existing ink jet device does not have a filtering function and impurities in ink are prone to blocking an ink jet pipe after being used for a long time and comprises a main body, and a control panel is arranged on the front face of the main body. The stirring shaft and a motor drive the stirring shaft to rotate, centrifugal force is generated due to rotation of the stirring shaft, and then a movable seat is driven to rotate; the movable seat drives the movable rod to be thrown up in the rotating process, at the moment, the movable rod drives the beating plate to beat and stir the ink, the ink passes through the interior of the through hole in the high-speed rotating process of the stirring shaft, and the through hole is arranged to be wide outside and narrow inside so that the ink can be fully stirred.
Owner:GUANGDONG HOUDE HUAYING TECHNOLOGY CO LTD

Rubber roller on-line cleaning device

The utility model relates to the technical field of cleaning devices for offset printing rollers, in particular to a rubber roller online cleaning device which comprises a cleaning module, a longitudinal adjusting module and a horizontal adjusting module, the cleaning module comprises a cleaning seat and a cleaning piece arranged on the cleaning seat, and the cleaning piece abuts against the outer surface of a rubber roller through the longitudinal adjusting module. The cleaning piece abutting against the outer surface of the rubber roller moves in the length direction of the rubber roller through the horizontal adjusting module, the horizontal adjusting module comprises a transverse strip and side supports arranged at the two ends of the transverse strip, the cleaning base is arranged on the transverse strip in a sliding mode, the transverse strip is connected with the longitudinal adjusting module through the side supports, and the longitudinal adjusting module comprises two vertical supports and a linkage assembly. The side supports longitudinally move along the two vertical supports through the linkage assemblies. According to the online cleaning device for the rubber covered roller, under the cooperation of the longitudinal adjusting module and the horizontal adjusting module, the rubber covered roller can be cleaned while the rubber covered roller runs, online cleaning of the rubber covered roller is achieved, and the cleaning efficiency of the rubber covered roller is improved.
Owner:JIANGSU YUXING FILM TECH

Method for optimizing the inking of printed sheets in offset printing

The invention relates to a method for optimising the colouring of printing material sheets in an offset printing unit of a sheet-fed printing press, in which the colouring is continuously monitored by determining the colouring values ​​using a colour measuring device and the printing supply is controlled and, if necessary, adjusted on the basis of an evaluation of the colouring values ​​by a computer.
Owner:HEIDELBERGER DRUCKMASCHINEN AG

Detachable and replaceable wrapping structure of offset printing roller

The utility model relates to the technical field of offset printing roller processing, and discloses an offset printing roller detachable wrapping structure which comprises a shaft core, a positioning mechanism is integrally arranged on the surface of the shaft core, a sleeve shell is arranged on the positioning mechanism in a sleeved mode, an aluminum wrapping layer is wrapped on the surface of the sleeve shell, a pressing pad is arranged at the joint of the aluminum wrapping layer in a press fit mode, and the pressing pad is arranged on the surface of the shaft core. A ceramic layer is sprayed on the surface of the aluminum wrapping layer, a seam fixing groove is formed in the sleeve shell, the pressing pad is located in the seam fixing groove, and an assembling mechanism is in lap joint with one end of the positioning mechanism and arranged on the shaft core in a sleeving mode. The offset printing roller replacement type wrapping structure solves the problems that in the prior art, in the transfer printing and gluing process of an offset printing roller, the offset printing roller needs to make full contact with glue liquid and press the glue liquid on a machined material, the surface of the offset printing roller is abraded and peeled off inevitably after long-time use, and consequently the whole offset printing roller needs to be replaced; and the processing cost of the release film is further increased.
Owner:KUNSHAN FOCUS LASER ROLLER CO LTD

A machine body structure and a printer

The application discloses a body structure and a printer. The body structure comprises a casing and a printing assembly. The mounting cavity of the casing has a first bottom wall surface and a support surface arranged at intervals in the thickness direction of the body. The printing assembly comprises a print head located in the mounting cavity. The lower edge of the printing area is located between the first bottom wall surface and the support surface or is lower than the first bottom wall surface. The consumable box can be supported on the support surface, and the bottom surface thereof is located between the support surface and the first bottom wall surface or is flush with the support surface. That is, part of the consumable box is accommodated in the space between the support surface and the first bottom wall surface, so that the body structure can be adapted to consumable boxes with different thickness sizes, and the versatility of the body structure is improved. The body structure of the application also ensures that the printing paper is always located in the printing area in the thickness direction of the body, avoids offset printing or empty printing, and guarantees the printing quality.
Owner:WUHAN JINGCHEN INTELLIGENT IDENTIFICATION TECH CO LTD

A multi-ink offset superimposed three-dimensional vamp process and a vamp thereof

PendingCN122271651APrinting pressSilica gel
This invention belongs to the field of three-dimensional offset printing technology for shoe uppers, specifically a multi-layer offset printing process for three-dimensional shoe uppers and the resulting shoe upper. The shoe upper includes a base fabric and multiple layers of offset printing. The base fabric is made of breathable mesh synthetic fiber filaments, and the multiple layers of offset printing are environmentally friendly liquid silicone offset printing layers. The base fabric and the multiple layers of offset printing are bonded together at high temperature. This shoe upper process, through a printing mechanism using a motor-driven bevel gear and lead screw transmission, drives a scraper to reciprocate at a uniform speed, while an ejector column clears the glue outlet, achieving uniform spreading and quantitative dispensing of the offset material. This solves the problems of glue blockage and uneven glue layer thickness, ensuring the texture regularity and thickness consistency of 3-5 layers of gradient offset printing, significantly improving the appearance and texture of the three-dimensional shoe upper.
Owner:QUANZHOU QUANYONG MACHINERY DEV

Method for optimizing coloration of printed sheets in offset printing

The invention relates to a method for optimizing the coloration of a printing sheet in an offset printing unit of a sheet printing press, in which the coloration of the printing sheet is continuously monitored by determining a coloration value using a color photometer and the pressure feed is controlled and optionally adjusted on the basis of the evaluation of the coloration value by a computer.
Owner:HEIDELBERGER DRUCKMASCHINEN AG

Methods and compositions for magnetizable plastics

ActiveUS12478979B2Dwelling equipmentOpen gradient mangetic separatorsPad printingMagnetic separator
Provided herein are compositions comprising substrates that contain polymeric materials or non-magnetic, paramagnetic, or diamagnetic metal objects, and films or inks that contain ferromagnetic materials in which the films or the ferromagnetic materials are transparent. Also provided herein are methods of fabricating the substrates. Further provided herein are ferromagnetic material films containing transparent or translucent films that comprises ferromagnetic materials. The coating imparts functionality to the film such that the film is capable of being mechanically separated from the polymeric materials or non-magnetic, paramagnetic, or diamagnetic metal objects using a commercial magnetic separator. The transparent, food-safe ink composition, which can be printed using high-speed flexographic, gravure, intaglio, offset printing or pad printing consists of an ingestible magnetically susceptible pigment capable of rendering the printed template with magnetically active properties.
Owner:MAGNOMER LLC

Method for detecting unwanted ink application on printing sheets in offset printing presses

This document describes a method for detecting unwanted ink transfer (smearing) on ​​printed sheets in offset printing presses. This method involves capturing a measurement image and a reference image using a camera and performing a computer-aided comparison. The reference image is captured in an area of ​​the printed sheet that does not come into contact with printing ink.
Owner:HEIDELBERGER DRUCKMASCHINEN AG

High-wear-resistance offset printing over-printing varnish for packaging and preparation method thereof

The invention relates to a high-wear-resistance offset printing over-printing varnish for packaging and a preparation method thereof, and the formula of the high-wear-resistance offset printing over-printing varnish comprises phenol-free resin, linseed oil, tung oil, high-boiling-point aromatic-free solvent oil, polyethylene wax and an auxiliary agent, and also comprises erucyl amide; phenol-free resin is used in the gloss oil, so that the harm to the environment can be reduced; the erucyl amide is added, so that the printing performance of the gloss oil can be improved, and the wear resistance and scratch resistance of the gloss oil are improved. Compared with common offset printing gloss oil, the high-wear-resistance offset printing gloss oil provided by the invention is high in glossiness, good in wear resistance and good in drying performance, and a printed product is not easy to yellow after being used for printing; after the surface of a printed product is printed, the gloss of the printed product is improved, the printed product is well protected, abrasion is not prone to occurring, moisture is prevented, and the quality of the printed product can be effectively improved.
Owner:TIANJIN ANGEL CHEM GRP

High-gloss offset printing mechanism for paper cups

The utility model discloses a high-gloss offset printing mechanism for paper cups, which belongs to the field of paper cups and comprises a bottom support plate, a vertical support plate is fixed at the top of the bottom support plate, and a circular rotating disc is rotatably connected in the vertical support plate. A plurality of transverse rotating columns are rotationally connected into the circular rotating disc, a fixing mechanism used for fixing paper cups is arranged at one end of each transverse rotating column, a rotating mechanism used for rotating the first driving motor is arranged at one end of the circular rotating disc, each fixing mechanism comprises a circular fixing block, and the circular fixing blocks are fixed into the transverse rotating columns; a second transverse hydraulic cylinder is fixed to one end of the circular fixing block, through operation of the second transverse hydraulic cylinder, the clamping force of the inclined supporting block can be automatically adjusted according to different cup types, the problem that pressure is too large or insufficient due to traditional spring clamping is solved, the printing stability is ensured, and cup bodies are prevented from being deformed and damaged.
Owner:浙江亦升科技股份有限公司

Stable paper collecting device of offset press

The utility model relates to the technical field of printing equipment, and provides an offset press stable paper collecting device which comprises a paper collecting table arranged at the rear end of a conveying belt of an offset press, a limiting mechanism is arranged on the side, away from the conveying belt, of the paper collecting table, and the limiting mechanism comprises a rotating shaft rotationally erected on an offset printing bin on the offset press and a plurality of stopping pieces arranged on the rotating shaft at intervals. The top end of the blocking piece is normally higher than the paper collecting table so that a paper collecting station can be formed between the blocking piece and the paper collecting table. A paper stacking mechanism used for forcing the side faces of the printing paper to be aligned is further arranged on the outer side of the paper collecting station. According to the stable paper collecting device of the offset press, printing paper falling into a paper box can be stacked in order, and subsequent printing paper arrangement and collection are facilitated.
Owner:ZHEJIANG GUANGYU NEWSPAPER PRINTING CO LTD

Three-dimensional offset printing vamp

According to the preparation technology of the three-dimensional offset printing vamp, the vamp comprises a vamp body and three-dimensional offset printing areas, the three-dimensional offset printing areas are arranged at any one or more positions of the surfaces of the three-dimensional offset printing areas, the vamp body comprises a vamp bottom layer on the bottom layer and a positioning glue layer on the surface layer, and connecting notches are formed in any one or more positions of the positioning glue layer. A plurality of inserting grooves are formed in the bottom faces of the connecting notches, the single-layer three-dimensional offset printing sheets are adopted on the vamps, the three-dimensional offset printing sheets deform in an injection molding filling mode, a plurality of protruding structures forming three-dimensional patterns are formed on the surfaces of the three-dimensional offset printing sheets, the structural stability of the three-dimensional patterns is effectively improved, and cracking is prevented.
Owner:FUJIAN HONGXING ERKE SPORTING GOODS CO LTD

A cigarette packaging offset printing quick positioning clamping device

The present application relates to printing equipment technical field, disclose a kind of cigarette packaging offset printing quick positioning clamping device.The present application includes: fixed frame, two clamping mechanisms and the cleaning mechanism for automatically flushing clamping mechanism are provided on the fixed frame;Clamping mechanism includes the T-shaped sleeve rotationally connected with the fixed frame, T-shaped sleeve is provided with the T-shaped top shaft that can be axially telescopic, by telescopic plate roller is clamped and limited, T-shaped sleeve and T-shaped top shaft between being provided with the bellow for blocking ink intrusion;Cleaning mechanism includes the slot ring covered in the bellow outside, slot ring is provided with the annular nozzle connected with external water supply equipment and the absorption cavity connected with external water pumping equipment.The present application effectively solves the ink pollution problem by physical isolation and automatic cleaning, improves equipment life and production efficiency.
Owner:ZHEJIANG WELLVAST PACKING PRINTING PRODS

On-press development type lithographic printing plate precursor, method for producing lithographic printing plate, and lithographic printing method

The present invention provides an on-press-development-type planographic printing original plate which sequentially comprises a supporting body, an image recording layer and a overcoat layer in this order, wherein: the overcoat layer does not contain an inorganic compound, or alternatively, the content of inorganic compounds is more than 0% by mass but less than 1% by mass relative to the total mass of the overcoat layer; and the image recording layer contains an infrared absorbent, a polymerization initiator, a polymerizable compound and an oil agent. The present invention also provides: a method for producing a planographic printing plate with use of the above-described on-press-development-type planographic printing original plate; and a planographic printing method.
Owner:FUJIFILM CORP

Guide roller structure of offset press

The utility model belongs to the technical field of offset press assemblies, and discloses an offset press guide roller structure which comprises a body, sealing plates are arranged at the two ends of the body, a rotating rod is fixedly connected to the axis ends of the sealing plates, stirring blades are arranged on the outer surface of the rotating rod, a motor is arranged at one end of the rotating rod, and a first mounting box is fixedly connected to the outer side of the motor. A laser receiver is arranged on the side, close to the main body, of the first mounting box, a laser transmitter is movably connected to the second mounting box through a rotating button, a pressure bearing roller is arranged at the other end of the first connecting rod, and after an offset printing material enters the main body through the feeding port, the motor is controlled to run through the control panel; the motor drives the rotating rod installed at the output end of the motor to rotate, the rotating rod rotates to drive the stirring blades arranged on the outer side of the rotating rod to rotate, the stirring blades make full contact with an offset printing material, solid particles in the offset printing material and a water-ink separation layer are mixed, the ink outlet uniformity is guaranteed, and the printing color stability is enhanced.
Owner:HUBEI TENGHAO PACKAGING IND CO LTD

Offset printing equipment and method for producing cosmetic hoses

The present invention provides offset printing equipment and method for producing cosmetic hoses, which relates to an offset printing structure, including a rubber roller, a circular surface of the rubber roller is provided with a group of U-shaped grooves extending in the axial direction, a group of tensioning roller groups are fed into the U-shaped groove of the rubber roller from one side of the rubber roller, and two groups of clamping groups suspended at both ends of the rubber roller are used to clamp the two ends of the tensioning roller group to position it in the U-shaped groove; the tensioning roller group includes two groups of pairs of frames, a tensioning roller body which is installed between the two groups of pairs of frames and driven to rotate by a group of motors on the pairs of frames, and a positioning group for pulling and positioning the tail end of the rubber cloth, and a clamping group is further provided in the U-shaped groove, and the clamping group is used to clamp and position the tail end of the rubber cloth when the positioning group releases the tail end of the rubber cloth and moves away from the tensioning roller body; the present invention can realize the rubber roller without disassembling, and the rubber cloth can be replaced directly online, so as to ensure debugging efficiency and save time and labor.
Owner:苏州雄泽包装有限公司