Gravure Printing for Premium Package Quality

Gravure printing method for printed products that reduces paper deformation and ink penetration issues compared to traditional gravure printing. The method involves using a resin relief plate instead of a conventional gravure cylinder, measuring the gap between the impression cylinder and plate cylinder, and adjusting the liner thickness to optimize printing pressure. This prevents excessive deformation of the paper surface and improves ink penetration. The resin relief plate allows relief printing to provide a raised effect on the printed product. By analyzing the printed product after trial printing to assess depth of field, the printing pressure can be further refined for optimal results.

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Gravure printing method for BOPP cigarette packaging film that addresses the issues of deformation, ink sticking, and odor when printing on BOPP film. The method involves online corona treatment, low-temperature drying, non-contact winding, and using water-based inks. This prevents BOPP film swelling, wrinkling, odor, and deformation during printing. The method also involves optimizing BOPP film composition and production parameters.

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A gravure printing process for paper packaging boxes that provides improved quality, consistency, and efficiency compared to conventional gravure printing methods. The process involves using acid etching, glass microspheres, and controlled pressure to enhance the printing result. The steps include: 1) Engraving the printing plate with a stylus coated in wax, just scratches the surface. 2) Soaking the plate in acid water to etch the exposed areas. 3) Adjusting the squeegee pressure to prevent damaging the plate. 4) Printing using acid-etched plates, a protective cloth, and controlled squeegee force. Adding glass microspheres to the ink provides retroreflection for anti-counterfeiting. The acid etching deepens the ink wells for better ink coverage, and the controlled pressure prevents plate damage. The glass microspheres provide anti-counter

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Integrated printing system for paper packaging boxes that combines gravure printing and hot stamping in a single continuous process to improve efficiency and reduce time compared to separate machines. The system has a gravure printer, storage, material distribution, cutting, and hot stamping stations arranged sequentially. The boxes are pulled, cut, stored, stacked, and dried between stations before hot stamping. This allows integrated printing without transferring between machines.

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A packaging film with improved opacity and productivity for printing on laminated films for packaging. The film has separate colored layers instead of using a single colored layer for the pattern. The first colored layer is printed using a conventional method like gravure, flexographic, or inkjet. Then a second colored layer is added on top using a different printing or coating method. This separates the white ink layer from the colored pattern layer. It addresses issues of slower drying and lower opacity of water-based inks in gravure and inkjet printing compared to oil-based inks. It also avoids the opacity issues of white ink in flexographic printing. The separate colored layers allow using optimized printing methods for each layer.

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On-line gravure printing method for producing high-speed reverse gloss packaging with a smooth, touchable surface finish. The method involves using gravure printing instead of offset printing for reverse gloss effects, allowing faster production speeds. The key steps are: 1. Preparing the ink: The ink contains a binder, photoinitiator, wax powder, and siloxane diluent. The binder provides fluidity, the photoinitiator starts polymerization, the wax powder adds texture, and the siloxane dilutes the binder. 2. Laser etching cells into the printing plates: This creates a pattern of raised areas and recessed areas. The ink will adhere better to the raised areas, providing a glossy finish. 3. Gravure printing with two oils: A bottom oil with a lower viscosity and higher wax content goes first, followed by a top oil

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A method to create hot stamping packaging with multi-color rainbow gradient effects by using gravure printing, screen printing, and lamination. The method involves printing a hot stamping film with gradient colors using gravure printing, then screen printing an embossed ink pattern on the packaging. The semi-cured embossed ink provides adhesion for the hot stamping film while leaving areas unsticky for the laser effect. This allows combining the laser and gradient effects in the hot stamping.

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A method for producing anti-counterfeit packaging material with embedded hidden images that cannot be easily replicated. The method involves using gravure printing on composite transfer material made by precision etching aluminized film. The process involves pre-printing a release resin pattern on a base film using gravure plates. Then vacuum aluminizing is done on the base film to create a continuous aluminum layer. The release resin repels aluminum in the pattern areas. This results in an aluminized film with hidden images. The film is composite transferred to a white card backing and in-line gravure printed to make the final packaging material with embedded anti-counterfeit images.

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Double-sided printing process for paper-plastic composite materials like food packaging films that can print on both sides of the composite material. It involves using a flat offset printing plate for one side and a gravure printing plate for the other side, with matched plates on each. The gravure plates are wound around the gravure cylinder. This allows simultaneous printing on both sides of the composite material by alternating between offset and gravure printing. The matched plates ensure proper alignment of the double-sided patterns.

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A gravure printing process and equipment for paper packaging boxes that allows high quality, vibrant and long-lasting prints. The process involves dividing the image into sections and printing them separately instead of all at once. This improves the simulation and 3D effect of the printed image. The equipment has a clamping mechanism with fixed seats and guide posts to secure the paper during feeding.

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Packaging bag with 3D texture and enhanced product branding using a combination of gravure printing and screen printing techniques. The bag has both protruding and recessed features for a tactile effect. The recessed areas are printed using screen printing with a colored layer and a fluorescent layer around the edge. The protruding areas are printed using gravure printing. This creates a 3D effect with textured areas that stand out and recessed areas that have depth. It provides a more visually interesting and attention-grabbing packaging bag design compared to flat prints.

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Fully automatic high-speed gravure printing machine with improved ink drying for high-quality printing. The machine has a series of printing units with a printing device to apply ink to the film and a drying device above it. The drying device has a rotating drying roller with a heating element and tensioning component. This dries the printed ink as the film moves. The drying roller tension is adjustable to optimize drying time based on ink thickness. The heating element heats the roller surface to effectively dry the ink. The tensioning component pulls the film closer for thicker ink or further for thinner ink to improve drying.

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An environmentally friendly water-based gravure printing process for plastic packaging bags that replaces traditional inks containing toxic solvents like benzene and methanol with a water-based ink containing self-crosslinking acrylate emulsion, pigments, fluorescent pigments, and defoamers. This allows printing on plastic bags without harmful solvents, improving safety and reducing environmental impact compared to conventional gravure printing inks.

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Pre-composite aluminum foil surface gravure printing method to enhance aluminum foil printing quality and prevent wrinkles or material breaks during printing. The method involves compositing a thin aluminum foil with a thick polyethylene film before printing. The composite is cured and then gravure printed. The composite film has increased mechanical strength compared to just aluminum foil, preventing wrinkles and breaks during printing. The composite film is made by sizing the polyethylene film, gluing it to the aluminum foil, curing, and then gravure printing.

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A gravure printing machine for accurately and efficiently printing patterned trademarks on both sides of printed matter. The machine has two printing chambers, one for printing the bottom side and one for printing the top side. Ink transfer spokes, impression cylinders, and squeegees are arranged between the chambers. This allows simultaneous printing on both sides with controlled registration. A guide spoke system clamps the printed matter as it passes through. A drying device in the middle chamber removes excess ink.

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High-efficiency gravure printing process for plastic films that uses water-based inks without solvents to achieve high quality, accurate printing on plastic films like PVC, PE, and PP. The process involves preheating the film to 80-100°C, applying a thin primer layer, drying the primer to 10-20% humidity, and then printing the water-based ink. The preheating step helps the film shrink less during printing. The primer improves ink adhesion. Drying the primer reduces water absorption by the film. This allows the water-based ink to dry faster and prevents smearing. The dried primer provides a smooth surface for the ink to adhere to.

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A solvent-free printing and compounding machine that integrates solvent-free printing and compounding on the same equipment to enable continuous high-speed production without breaks between steps. The machine has a paper unwinder, printing units for multicolor solvent-free gravure printing, a coating unit for solvent-free adhesive application, and a composite rolling unit. It uses curing and cooling devices to solidify and cool the printed and composite materials. The machine allows printing directly onto coated substrates without separate winding and transport steps.

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High-speed rotogravure printing machine with inline coating station to create tactile and glitter effects on roll-to-roll flexible packaging substrates without loose flakes, environmental hazards, or health issues. The machine prints raised, textured surfaces that can be felt by touch using thick ink layers transferred by a specialized printing cylinder. The thick ink deposits create tactile effects on the substrate surface. Glitter particles can also be added to the ink for additional glitter effect. The machine uses radiation curable inks that can be cured quickly using UV LED or EB curing.

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A printing unit for a security printing machine that allows accurate color transfer in gravure printing. The printing unit has a forme cylinder with recessed patterns for printing images, and two inking cylinders that partially overlap the recesses. This ensures consistent ink coverage across the entire pattern. It also has a sleeve that can be swapped to change the cylinder dimensions. This allows adjusting the ink transfer based on sleeve thickness. The sleeve can be removed, equipped, and reinstalled for sleeve swapping.

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An environmentally friendly water-based gravure printing process for plastic packaging bags that avoids using organic solvents in the ink. The process involves preparing a true water-based ink by dissolving the organic pigment in water instead of using solvents like ethanol. This eliminates the issues of ink adhesion and softening of the bags during printing. The water-based ink can be printed on plastic bags using gravure printing techniques.

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A printing unit, printing machine, and method for gravure printing that reduces ink waste and improves print quality. The printing unit has an ink fountain with cylinders for storing and transferring ink. One cylinder has depressions to scrape excess ink off the gravure cell. This cylinder can be driven independently of the other cylinders. A wiping blade removes ink from non-engraved areas. A sleeve on the ink fountain body can be swapped to change the cylinder sizes. This allows optimizing ink transfer and scraping based on cell geometry. The independent cylinder scraping reduces ink waste compared to scraping together with the other cylinders.

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Printing unit and printing machine for reducing ink waste in gravure printing by preventing ink from being transferred to unprinted areas. The printing unit has an inking device with a doctor blade that wipes excess ink off the cylinder surface between the engraved areas. This removes ink from non-printing areas to prevent smearing and ghosting. The blade is adjustable and contacts the cylinder surface with a variable force. The blade can be positioned at an angle to further reduce ink transfer. This prevents ink from being picked up by the printing cylinder in areas that shouldn't have ink, reducing ink waste.

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Gravure printing process that maintains the optimal temperature for printing by using a temperature-controlled gravure cylinder. The cylinder has a second chamber with a temperature sensor and silicone insulation wool lining. The printing paper is pretreated, the ink is selected with additives, and the printing conditions are optimized. The wool insulates the paper from the cylinder surface and prevents ink evaporation. A second chamber with controlled temperature regulates the paper temperature. This prevents ink adhesion issues from high cylinder temps and paper coldness. By matching the paper and cylinder temps, it improves gravure printing quality.

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Gravure anti-counterfeiting positioning transfer paper with holographic anti-counterfeiting tape for improved efficiency and anti-counterfeiting capability in gravure printing. The paper has a horizontal holographic anti-counterfeiting tape with multiple areas printed with different anti-counterfeiting marks. This allows precise gravure printing positioning using the tape as a guide to avoid misalignment issues. The holographic tape provides anti-counterfeiting security and the tape's holographic effect helps prevent copying.

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A printing system and method that allows continuous offset and gravure printing on a single machine to avoid separate machines for complex finishing processes. The system has a sequential arrangement of units starting with a feeder, glazer, offset printer, second glazer, and gravure printer. The paper is loaded, glazed, offset printed, re-glazed, and then gravure printed without stopping. This allows complex finishing effects like frosting, ice, or wrinkles to be applied to the offset printed paper.

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In-line microstructure replication gravure printing process for producing nano-optical microstructures on packaging materials. The process involves replicating the microstructures directly onto the film using a hot embossing roller, followed by gravure printing of the desired images. The embossing roller has a coated texture that transfers the microstructure to the film. This in-line setup eliminates separate hot embossing and printing steps. The embossing roller position is adjusted to align with the gravure printing stations. The film tension is controlled to maintain accuracy. Color registration is checked between embossed and printed images.

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Gravure printing method to improve the light refraction and three-dimensionality of printed packaging materials. The method involves creating a gravure refraction shading pattern and using a specially formulated ink with acrylic monomers. The ink is printed onto the packaging material using a gravure printing process. The acrylic monomers in the ink improve light refraction and translucency on the printed surface, enhancing the three-dimensionality and brightness of the pattern.

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Hybrid decor film with high resolution and color consistency by printing on the back using digital, grayscale, and gravure techniques. The process involves printing a pattern on the back of the film opposite to the front using digital inkjet. Then, overlapping grayscale ink on the back using digital printing. Finally, adding a third printed layer using gravure printing. This allows printing complex designs, avoiding color differences, and showing metallic/pearl effects. The film can also have a laminated film over the second layer.

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A printing device that allows both gravure and high-pressure printing in a single machine. The device has dual printing sleeves - a gravure sleeve for gravure printing and a high-pressure molded sleeve for high-pressure printing. The gravure sleeve has a raised printing surface, while the high-pressure sleeve has a recessed printing surface. The device also has substrate support devices with flat surfaces for both gravure and high-pressure printing. This allows force-controlled gravure printing and path-controlled high-pressure printing in the same machine.

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Color printing packaging gravure printing method that improves efficiency and quality of food bag printing. The method involves making a single intaglio plate for multiple colors instead of separate plates. The intaglio has the patterns for all colors on the same plate. The ink for each color is prepared separately. This reduces the number of plates needed and eliminates issues like ink transfer between plates. The method also uses energy-saving drying heat pumps above the printing presses to recover heat from the printing process and dry the packaging films during printing. This reduces energy consumption compared to separate drying ovens.

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Multi-color gravure printing machine with high precision overprinting capability. It has an overprinting mechanism with multiple sets for each color. The mechanism includes guides, printing, drying, and cooling rolls. The guides have unique roller configurations like herringbone, crossed spirals, and fine sand rolls to accurately guide the film material. The printing rollers have compensation and adjustment rolls. The drying rolls have one-way bearings. This optimized roller setup prevents film stretching, slipping, and quality issues during overprinting.

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A gravure printing machine with an integrated drying system to improve the quality of printed products. The machine has a feeding device, an imprinting device, a drying box group, and a receiving device. The feeding device has a drying box on its front side, and the drying box is connected to the receiving device. This allows the printed material to be fed directly into the drying box after printing, providing an enclosed environment for drying without exposing the material to external air. The drying box has feed openings on the front and rear sides to allow material to be loaded and unloaded. This integrated drying system helps prevent ink smudging during transport between printing and drying stages.

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Gravure printing process for flexible packaging that reduces knife lines and ink peeling to improve print quality. The process involves corona treatment of the substrate before printing to improve ink adhesion. The drying stages are adjusted based on the pattern coverage to prevent drying defects. This improves ink transfer and prevents ink peeling and knife lines in flexible packaging gravure printing.

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Gravure printing method for flexible packaging to improve print quality and address issues like size distortion during high-speed printing. The method involves compensating for substrate size deformation during printing by increasing the diameter of the printing plate cylinder. This allows the printing plate to better match the stretched or distorted substrate size and maintain accurate overprinting. The deeper pits on the printing plate hold more ink for thicker layers, while shallower pits hold less ink for thinner layers. The pits are filled with ink during printing and scraped off with a squeegee to transfer the ink to the substrate.

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A process and method for creating packaging materials with 3D relief effects using UV ink and gravure printing. The process involves printing a 3D relief image using UV ink on one side of the material, then overprinting on the other side using gravure printing. The gravure printing creates a reverse 3D relief effect on the other side. This synergistic combination of UV and gravure printing provides a 3D tactile effect when viewed from both sides.

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Fast, efficient multi-color printing on plastic films using inkjet printers for the color layers and gravure rollers for the anchor and shielding layers. The key steps are: 1) Apply an anchor coating to the plastic film using a gravure roll to create a receptive layer for the inkjet inks. 2) Print the multi-color design using inkjet printers. 3) Apply a shielding layer over the printed colors using a gravure roll. This sequence allows fast, high-speed printing while still providing the functionality of the anchor and shielding layers. The gravure rollers enable thicker, more uniform layers compared to inkjet. The drying process involves heating guide rolls to boiling temps immediately after entering the oven, then cooling guide rolls to prevent deformation. This rapid heating and cooling efficiently dries the film without overheating.

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A method for printing gravure images on paper using water-based ink and a laminated film to avoid volatile organic compound emissions and improve environmental friendliness compared to traditional solvent-based gravure printing. The process involves: 1. Preparing the gravure roll with an electronic or laser engraved gravure roll instead of a solvent-based one. 2. Using a water-based ink binder like waterborne polyurethane modified polyvinyl alcohol instead of traditional solvent-based ink binders like aromatic water-based polyurethane modified polyvinyl alcohol. 3. Laminating a polyethylene film onto the paper before printing to prevent the ink from entering the paper fibers and reduce absorption. After printing, the film is peeled off. 4. Using water as the ink thinner instead of volatile organic compounds like benzene, toluene, and eth

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Ten-color combined gravure printing machine that allows printing of complex color schemes on flexible packaging without requiring multiple separate printing machines. The machine has two impression cylinders, one plate cylinder between them, and a feeding and receiving bag. The bag has an internal flexible bag combination that connects between the impression cylinders. Drying devices are provided between the bag and impression cylinders. This allows all ten colors to be printed in sequence on the flexible bag without switching machines.

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Structured packaging film with raised embossed areas that retain their shape over time. The film is made by gravure printing using a roller with cavities that transfer a thick printing ink layer onto the film. The thick ink dries to create embossed areas on the film. This provides a durable 3D effect compared to normal embossing where the embossed areas can flatten over time. The thick ink layer prevents the embossed areas from deforming as much due to material elasticity.

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Printing method to prevent moiré and improve ink transfer in gravure printing. The method involves using gravure plates with specific cell counts and angles to avoid moiré patterns. For white ink, use a plate with 200-400 lines/inch. For color ink, use a plate with 150-250 lines/inch. The plates should have different cell angles, ideally a 20-30 degree difference, to prevent moiré. This allows smoother ink transfer and reduced ink transfer issues compared to using plates with the same cell count and angle.

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Gravure printing machine that allows accurate registration adjustment of printed patterns between two gravure printing units. The machine has a first gravure printing unit with a cylinder and a first impression cylinder that conveys the sheet. A first intaglio cylinder contacts the first impression cylinder for gravure printing. A second impression cylinder contacts the first intaglio cylinder downstream for second gravure printing. A turning unit inverts the sheet between the first and second units. Between the turning unit and second unit, a second gravure registration adjusting device can move the sheet position to align the printed patterns. This compensates for differences in cylinder mounting offsets.

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A printing method using a combination of gravure and digital printing on a device with features like oil coating, position sensing, speed adjustment, and tension control. The method involves breaking down an image into gravure and digital sections, gravure printing, sensing material position, digital printing aligned to the position, drying, and winding. It improves registration, color adjustment, and alignment between gravure and digital printing for better overall quality and flexibility compared to either method alone.

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Gravure printing cylinder for environmentally friendly seal paper that can directly print on coated paper using a common gravure printing machine. The cylinder has a central through hole for the roller and a surrounding groove dividing the cylinder into an information area and a smaller identification area. The larger information area has multiple printing elements for transparent ink to mimic laser transfer paper. The smaller identification area has a single printing element for opaque ink. This allows printing on coated paper without using laser transfer paper, reducing production cost and environmental impact.

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Decorative sheet using gravure printing with improved scratch resistance, solvent resistance, and adhesion. The sheet has layers including a PVC core, primer, pattern print, deflector film, textured coating, and overprint. The deflector film prevents foreign matter. The textured coating provides a matte effect. A glitter layer between print and deflector adds diffuse reflection. The layers are formed using roll-to-roll gravure printing. The primer, overprint, and textured coating layers are printed consecutively. The pattern print layer is printed using a gravure roll. The sheet structure and printing method improves quality compared to traditional methods.

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Efficiently printing fissile gravure effects on paper using a gravure printing machine and UV curing. The process involves gravure printing fission ink at a depth of 36-49 microns on 240g cardboard. Then, the printed ink is detonated and dried using UV curing. The detonating light box and drying light box are arranged on adjacent color seats with a distance of 1-1.5 meters to ensure detonation and drying at machine speed. The detonating lamps have 15-45 kW power and the drying lamps have 15 kW power. The detonating lamp is 15 mm from the paper surface and the drying lamp is 15 mm above that. This setup allows quick detonation and drying to form a thick fissile effect.

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Integrated printing and laser processing machine that combines gravure printing and cold transfer laser embossing in a single machine to improve efficiency and precision. The machine has a gravure printing section with chain-fed paper and a cold transfer section with a conveyor belt. After gravure printing, the paper is conveyed backward onto the cold transfer belt and moved through the laser embossing rollers. This allows printing and laser finishing in a continuous process without manual sheet handling.

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A gravure printing method and device to transfer larger amounts of ink onto a printing material like paper. The method involves using a printing plate with deeper, larger depressions (wells) than conventional gravure plates. These larger wells hold more ink. The plate is rotated in a printing press with an ink supply cylinder, a doctor blade, and a counter-pressure cylinder. The excess ink is removed from the plate webs by the doctor blade, leaving ink only in the wells. The plate cylinder is pressed against the printing material to transfer the ink from the wells. This allows more ink to be transferred compared to conventional gravure printing.

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A method to print diffuse reflection patterns using gravure roll printing that provides mass production of diffuse reflection materials at low cost compared to methods like holography. The method involves forming groups of irregular patterns with connected lines, arranging them horizontally and vertically, and printing them using a gravure roll. The key is optimizing the pattern design for gravure printing by making narrow lines along pattern boundaries and horizontal lines parallel to the roll axis. This reduces blurring and distortion when printing.

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A gravure printing method for partially transparent aluminum-coated films that avoids the productivity issues of removing the aluminum coating in specific areas. The method involves gravure printing on the aluminum-coated film using normal inks. Then, instead of removing the aluminum coating from non-printed areas using etching or dissolution, the film is washed to remove any remaining ink. This leaves the aluminum coating partially transparent in the printed areas while maintaining full coverage elsewhere.

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A method for gravure printing on aluminum-deposited films to create partially transparent patterns without removing the aluminum coating. The method involves using a water-soluble ink that reacts with the aluminum and dissolves it when printed. After printing, water is applied to the ink-coated surface to dissolve it, then the film is pressed to remove the dissolved ink. This leaves behind a pattern where the aluminum coating was dissolved, creating a transparent region.

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