Packaging Decoration Techniques

Coating packaging materials like paper and cardboard with a thixotropic aqueous mixture to improve barrier properties like reducing gas and moisture transfer through the material. The coating composition contains smectite clay, a water-soluble polymer, and a cross-linking agent that links the clay to the polymer. Applying the mixture to a surface and heat treating crosslinks the clay-polymer barrier. This provides coated packaging with improved barrier properties for replacing single-use plastic in produce shipping.

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Embossed printing ink for security documents and packaging that dries quickly, prevents ink leakage, allows precise embossment, and prevents ink transfer to the back of printed pages. The ink composition includes a compound curable with UV light, an oxidatively polymerizable compound, a photopolymerization initiator, an oxidative polymerization catalyst, and pigment. This ink formulation enables faster drying, prevents softness that reduces embossment, and prevents ink transfer between printed pages when stacked.

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Embossed paper packaging material for twist packaging that does not require wax coatings. The packaging material has a base layer made of paper or cellulose that is embossed in sections to allow twisting without cracking. The embossing provides elasticity and flexibility for twist packaging without using wax coatings that can make recycling difficult.

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Base paper for metallized paper that provides metallized paper with excellent printability and processability in automatic packaging. The base paper has a resin layer on one side and a pigment coating layer on the other side. The pigment content in the coating is 50-85% by mass. The side with the pigment coating has an Oken smoothness of 300 seconds or more and a dynamic friction coefficient against stainless steel of 0.35 or less. This improves printability and reduces friction when metallizing the paper. The coating layer properties remain after metallization.

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Packaging container with clear markings and reduced labels by laser marking a core layer containing titanium dioxide. The container is made from a resin sheet with a core layer containing titanium dioxide. Laser marking using carbon dioxide irradiates the titanium dioxide to create black markings on the container. The contrast between the white core and black markings makes the markings stand out. Laser marking instead of labels reduces label usage. The core layer covered by a thin transparent skin layer prevents surface damage from laser irradiation.

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Label design to prevent printing defects and reduce rework when attaching labels to packaging boxes. The label has anti-adhesion layers between the adhesive and release layers. This prevents steps and unevenness when attaching the label since the adhesive and non-adhesive areas are flattened. The anti-adhesion layers are thin, like 1/20 the thickness of the adhesive. They can contain UV ink for printing on the label surface. This prevents printing issues due to the step between adhesive and non-adhesive areas. The label with flattened surfaces reduces the need for reattaching labels due to poor printing.

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A paper food packaging box that increases the perceived quality of packaged food by using a combination of brown and white kraft paper. The outer layer is made of brown kraft paper, while the inner layer is made of white kraft paper. This provides a contrast that elevates the perceived quality of the packaging compared to using just brown kraft paper. The two layers are laminated together using adhesive and heat fusion.

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Polymeric structures for flexible packaging, like films for food packaging, that do not require primer coatings to improve adhesion between layers. The structures are treated with a nitrous flame (NFT) process at different times. The NFT treatment activates the polymer surfaces and eliminates the need for primers. The NFT flame, which has higher temperatures than standard flames, functionalizes the polymer surface. This improves adhesion between layers and coating materials without primer. The NFT treatment can be applied in-line during film production or during conversion steps.

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Digital printing on the inside of flexible packaging to add unique codes, promotional content, or varying patterns on the inner layers of flexible packaging using a separate digital printing process before lamination. This involves digitally printing on the laminated film rolls before combining them in the lamination process to create the final flexible packaging. A compensator roll is added to the lamination machine to adjust for the thickness variation from the digital printing. This allows precise, customizable inner printing that can vary per package while remaining regular and safe for products.

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Laminate sheet, container, and food packaging with improved appearance and formability after heat treatment. The laminate sheet has four layers: inner, intermediate, first outer, and second outer. The second outer layer contains a polyester or polycarbonate resin with a high deflection temperature. This provides good formability while maintaining transparency after heat treatment. The second outer layer thickness is 0.5-8% of the total sheet. The laminate sheet can be used to make containers that retain their appearance after boiling. The containers can be filled with food for sterilization while maintaining good appearance.

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Molded fiber packaging that is suitable for wet products without using excessive plastic. The packaging is made by wet molding a fiber material like recycled paper or cardboard. To make it waterproof, the molded fiber is coated with a thin layer of hydrophobic material. This prevents water absorption and keeps the contents dry. The hydrophobic coating can be applied using techniques like spraying, dipping, or roller coating. The coated molded fiber packaging provides water resistance without adding plastic layers or inserts, reducing waste and simplifying recycling.

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A unique star-shaped packaging box that improves product quality, display, and protection compared to conventional rectangular boxes. The star-shaped box is formed by folding and connecting triangular sections around a central flat base. This creates a star shape with eight protruding pillars when viewed from above. The star shape allows the box to be opened and closed like a traditional rectangular box, but with a more distinctive and visually appealing design. The star shape also provides better shock absorption and protection for the packaged product compared to a rectangular box. The folding mechanism involves folding triangular sections at right angles and connecting them with slots and guides. The star shape can be opened and closed like a traditional rectangular box, but with a more distinctive and visually appealing design. The star shape also provides better shock absorption and protection for the packaged product compared to a rectangular box.

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Method for producing tubular packaging with concealed welds by printing a continuous pattern around the circumference of the tube sheets. This allows the welded seam to be hidden within the pattern when the sheets are joined together. The method involves determining the geometric characteristics of the tube, printing a continuous pattern around the tube sheets, and welding the sheets to form the tube body with the pattern covering the seam.

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Custom product packaging using molded foam articles made from biodegradable polylactic acid (PLA) that can be adhered to various surfaces for customization without waste. The PLA foam can be adhered to substrates like metal, film, cardboard, and plastic using heat and pressure. This allows attaching foam directly to irregular surfaces, filling gaps, and preventing movement compared to separate foam padding. The PLA foam adhesion eliminates the need for tape or wrapping to secure foam, reducing packaging waste. The foam-substrate bond is superior to traditional foam-substrate bonds due to PLA's properties.

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Packaging box with 3D cards that change appearance based on viewing angle to make the box more visually appealing and attractive to consumers. The box has a transparent body made by folding and joining four side panels and two cover panels. Inside the box, there is a 3D card with multiple patterns that creates a double-changing effect when viewed from different angles. This adds visual interest and enhances the packaging value compared to plain boxes.

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Method to manufacture multilayer packaging films with digital printing that enables fast, reliable and cost-effective production of small quantity customized packaging. The method involves printing on the outer layer of an unprinted multilayer film using digital printing, treating the printed surface with corona discharge, heat laminating with an adhesive layer, and rapid cooling. This sequence reduces defects and time compared to conventional methods. The digital printing step involves corona treating the surface before printing, and secondary corona treatment on the printed surface. The lamination step uses an EVA adhesive layer between the printed film and protective film. Rapid cooling after lamination prevents film deformation. The tension sequence is first before printing, second after lamination, and higher during cooling. This prevents wrinkles and bubbles.

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A sustainable and biodegradable packaging material made from coating chitosan on dry banana leaves. The method involves spreading a chitosan-glycerol solution onto a banana leaf, letting it dry, and repeating on the other side. This creates a flexible, smooth, and biodegradable packaging material that can be used for food items. The chitosan coating provides strength and moisture barrier properties, while also degrading completely in soil within 15 days.

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Sliding film, laminate, and packaging container with improved sliding properties against deposits while maintaining transparency. The sliding film is made by co-hydrolyzing or condensing an alkyltrialkoxysilane with 1-14 carbon alkyl group and tetraalkoxysilane. The sliding film has excellent sliding properties against deposits like oil adhesion in packaging containers. The sliding film can be applied to laminates and packaging containers by coating it onto a substrate and allowing it to react and cure. The coating process involves dissolving the silanes in a solvent, applying it to the substrate, and removing the solvent.

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Label packaging material with improved printing quality when a shielding layer is used. The label has a base material with a shielding layer printed on one side to hide certain areas. Designs are then printed on the shielded side using letterpress. To prevent overemphasized edges, a halftone layer is printed around the designs using the same ink color. This prevents excessive printing pressure and improves printing quality.

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Method to manufacture laminated packaging material for liquid food containers with improved print quality and product integrity. The method involves inkjet printing on paperboard, drying with IR radiation, and an absorption surface on the backside to minimize moisture loss from the paperboard itself. This prevents cracking and delamination issues. The IR power is adjusted based on paperboard moisture levels.

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