Screen Printing for Thick Ink Application

Method and device for applying a coating to cellulose packaging material like paper to control moisture vapor transmission. The method uses a grid roller with recesses that retain a fixed amount of coating material. The roller contacts the packaging material to transfer the exact coating quantity to one side. This provides consistent coating thickness compared to spraying or rotary methods. The roller can also coat the other side. The device can have multiple rollers for simultaneous double-sided coating. The grid roller allows precise control over coating weight and uniformity for setting moisture vapor permeability of cellulose packaging materials.

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Method to apply a coating to cellulose packaging material to precisely control moisture permeability. The method involves using a grid roller with recesses that hold coating material. The roller is pressed against one side of the packaging material to transfer the coating. This allows precise dosing of coating compared to spraying or roll coating. The method can also apply a second coating layer on the other side for bidirectional moisture control. The grid roller has recesses that can take up and release a specific amount of coating material.

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A method for applying a coating layer to cellulose packaging materials like paper to set their moisture vapor permeability. The method involves using a grid-patterned roller with recesses filled with a specific quantity of coating material. The roller is brought into contact with one side of the paper and applies the coating from the recesses to that side. This allows precise control over the amount of coating applied compared to spraying or roller coating. The method can be repeated on the other side using another grid roller. This provides more consistent and adjustable moisture barriers compared to existing techniques.

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Ornamental label for bottles to enhance the appearance of packaging like perfume bottles and wine bottles. The label is self-adhesive and has embossed designs that mimic glass molding or engraving without the issues of weak spots and costs associated with actual molding or engraving. The label has a removable backing and is made by printing on a mesh with varnish that repels liquid plastic. The label material is cut and poured with UV ink to form a raised embossed effect. The embossed label is attached to the bottle surface to provide a decorative finish.

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A system and method for producing medical packaging that allows efficient and accurate printing of both static and variable information on the packaging. The method involves using a first printer with a digitally controlled thermal print head to apply a negative print image on the packaging surface. This negative image serves as a template for a subsequent offline printing step using a cliché with a flat section. In this step, a color film is pressed onto the negative image to fill in the spaces. This provides a positive print image overlaid on the negative one. The first printer can also be used to heat the surface to create a stencil for the flat section of the cliché. This allows printing the flat section without ink. The resulting packaging has both static and variable information printed accurately and efficiently.

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Method and apparatus for producing customized substrates like packaging materials with selective coating patterns. The method involves applying portions of a coating material to a substrate using a tool with transfer and separation regions. The tool presses or separates coating to form discrete regions on the substrate. Multiple regions can be applied with different designs. The tool allows rapid, automated customization by changing the coating and tool geometry.

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A packaging sheet with improved aesthetics that can be embossed without damaging the base paper. The manufacturing process involves embossing the base paper, applying a foaming liquid to the embossed areas, and drying a coating layer on top. The foaming liquid is printed using a roller with a patterned groove. Embossing without damaging the paper is achieved by using a specific mesh size (50-350) for the roller's groove pattern. The embossed paper is then coated and dried to provide a finished packaging sheet with enhanced texture and rigidity.

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Apparatus for manufacturing vaporizable rust-preventive packaging material that can be uniformly thermally bonded to prevent corrosion during packaging of metal machinery or metal parts. The apparatus uses a mesh roll to quantitatively and uniformly disperse a crushed rust preventive agent onto one side of a polymer resin layer on the packaging material. This allows the rust preventive agent to be thermally bonded to the polymer rather than mixed or coated. This provides improved rust prevention with less material loss compared to conventional methods.

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A method and installation for decorating glass bottles with a more reliable and efficient pad printing process that addresses the issues of fragile screens and ink connections in conventional pad printing. The process involves using a perforated screen for screen printing to transfer the ink onto a rotary pad instead of directly onto the bottle. The bottle is then pressed against the rotary pad to transfer the ink. This allows using a moderate pressure and synchronous translation of the pad and bottle to prevent damage to the screen and ink connections. The perforated screen allows ink transfer without contacting the bottle. The rotary pad provides a stable and adjustable printing surface.

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Decorating glass bottles with intricate designs that can be applied to the entire circumference without ink connections or multiple passes. The decoration process involves using a perforated screen and a rotating transfer pad to print onto the bottle. The bottle is held stationary while the screen and pad rotate synchronously around it. This allows continuous, seamless coverage of the bottle circumference. The perforations in the screen allow ink to transfer to the pad instead of directly onto the bottle, preventing ink connections.

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Packaging for consumer items, like cigarette packs, with a tactile coating that provides a distinct feel when handling the container. The tactile coating is created by applying varnish in a pattern of raised features with a height of at least 10 microns and spacing of at least 20 microns. This discontinuous texture provides a tactile sensation on the outside of the container when touched. The raised varnish features can be applied using a process like screen printing or stencil coating.

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