Design Validation for Package Construction

Packaging container design that reduces breakage risk and makes opening/closing easier. The container has a lid with a small opening area and a cover stopper that gradually decreases in size towards the edges. The container body has a recessed section below the lid contact point. This prevents lid damage when opened and makes contact easier. The container also has a protruding inner section and outer section that contact each other. This reduces force needed to open the container.

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Gas barrier laminate, packaging material, and vacuum insulation material that have excellent gas barrier properties even after folding. The laminate has a specific structure with layers: a polyolefin base layer, a first polyvinyl alcohol (PVA) layer, a vapor deposition layer, and a second PVA layer. The vapor deposition layer is between the two PVA layers. The indentation hardness of the second PVA layer is 0.5 GPa or less. This laminate design provides improved gas barrier performance compared to mono-material polyolefin laminates after folding, which is important for applications like foldable packaging and vacuum insulation.

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A packaging box for protecting fragile items like lenses during shipping. The box has an internal support cavity that provides cushioning and prevents the item from moving around inside. The box bottom connects to the support piece at one end and the lid at the other end. This allows the item to be placed inside the support cavity, which has curved walls to match the shape of the item, preventing pressure damage from stacked items. The curved walls also provide dust protection. The box is made of integrally formed paperboard.

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Inspecting packages with high accuracy by placing a transparent member on the package and imaging the sealed and non-sealed areas sandwiched between the package and transparent member. This prevents focus issues when inspecting the seal versus the contents. The transparent member overlaps both areas.

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Laminated films for packaging materials that have excellent retort resistance at high temperatures and impact resistance at high temperatures for applications like retort sterilization. The films have a layered structure with a surface layer, an intermediate layer, and a heat-sealable layer. The surface layer contains a copolymer of ethylene and a monomer like ethyl acrylate or methyl acrylate. The intermediate layer contains a copolymer of ethylene and a monomer like ethyl acrylate, methyl acrylate, or maleic anhydride. The copolymers in the layers have specific compositions and Mw/Mn ratios for balanced retort resistance and impact strength. The layered film structure provides both good retort resistance at high temperatures and impact resistance at high temperatures.

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Retortable packaging film for food products that is recyclable and provides good sealing and tear properties for retort processing. The film uses a mono-polymer laminate of biaxially oriented polypropylene (BOPP) and machine direction oriented polypropylene (MDOPP) instead of multipolymer laminates. A sealing layer with specific polypropylene terpolymer and long-chain branched polyethylene composition provides sealing strength and low melt flow index for retort compatibility. The film has at least 80% polypropylene content.

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Gas barrier laminate and packaging bag that maintain good barrier properties after retort treatment. The laminate has a barrier layer with a substrate, barrier coat, and sealant/support layers bonded by adhesives. The first adhesive layer between the barrier and sealant has a measured modulus of elasticity after retort between 5-53 MPa. This allows the laminate to expand and contract during retorting without cracking the barrier coat. The second adhesive layer between the barrier and support also has a measured modulus between 5-53 MPa after retorting. This prevents barrier coat damage from expanding substrate and support layers. The laminate can have a mono-material construction with polyolefin films for substrate and sealant. The polyolefin content is 90% or more.

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Nested molded fiber trays for packaging products like electronics that have a lighter weight cosmetic tray to hold the product and a heavier structural tray that nests inside to provide additional support. The cosmetic tray has a higher density and thinner walls compared to the structural tray. This allows the product to be securely held in the cosmetic tray without needing complex folding and adhesion like traditional corrugated packaging. The nested trays provide better protection and merchandising of heavy products compared to just the lighter cosmetic tray.

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Pouch for sealing contents with a zipper that can maintain the closure at higher pressures. The pouch has a steam passage recessed into the side seals. When pressure increases inside the pouch, this recessed area peels apart first, preventing the zipper from opening prematurely due to deformation. The steam passage is positioned away from the zipper to prevent zipper deformation. This allows the zipper to stay closed longer as the pouch expands.

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Multilayer substrate for packaging materials with improved gas barrier properties and adhesion between layers. The substrate has a stretched polypropylene layer sandwiched between an outer layer and an inner coating layer. The coating layer contains a resin with polar groups to improve adhesion of subsequent layers like vapor deposited films. This prevents delamination and improves gas barrier performance compared to polypropylene-only substrates. The multilayer substrate can be used in packaging applications and the packaging material is made by laminating the substrate with additional layers like vapor deposited films and sealant layers.

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Clear, rigid medical packaging that can be sterilized by autoclave steam without warping or shrinking. The packaging is made by extruding a crystalline thermoplastic like PET, then partially stretching the film, heating it, and thermoforming it into the final shape. This process limits crystal growth to small spherulites rather than large crystals that cause warpage. The film is then sealed around the device and steam sterilized. The spherulitic crystals provide clarity and strength, but the restricted crystal growth prevents warping during sterilization. The packaging can be made by coextruding layers of different thicknesses that are split and stacked by multiplier units to form the final multilayer structure.

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Retail packaging solutions that address issues with securing movable product components, protecting complex curved surfaces, and maintaining product positioning during shipping. These solutions include: 1. Removable tear strip between lid and base box that clamps product inside when engaged, leaving a desirable remnant when torn. 2. Collar system for products with movable parts that provides support without constraining motion. The collars conform to the product's shape and connect with interlocking arms to form a closed loop. 3. Non-developable paper protective film for curved surfaces made by molding the paper to match the shape. The film has adhesive on both sides and a central paper layer.

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Packaging with improved stackability and resistance to bursting and top load forces for products like tubes, bottles, cans, and cartridges made from materials with low cohesion like cellulose. The improvement is achieved by confining the end of the tubular body between fixed elements on the inside and outside. This assembly technique prevents the low cohesion material from separating during stacking or internal pressure, improving stackability and burst resistance. The fixed elements can have low cohesion materials like cellulose too.

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A transport packaging that provides high shock absorption without additional cushioning elements. The packaging is made from corrugated cardboard and has a prism shape with an elliptical base. The item being shipped is wedged between the corrugations and has space to deform the walls in case of impacts. The packaging is produced on a customized line with measuring, creasing, cutting, and folding stations. The line calculates and generates the optimized prism shape for each item. This allows the packaging to conform to the item and absorb shocks without added cushions.

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Shock-absorbing packaging box that protects products from impact without using excessive materials or generating pollution. The box has flaps that cross over and can rotate up and down. A rotating plate between the flaps presses the product. Connected packaging members tauten as flaps rotate to push the product. This prevents internal movement and cushions impact. A support member connects the plate to flaps. Folding connectors allow easy boxing. The flaps rotate on slopes, avoiding rigid plates. This absorbs shock while spacing the product and preventing transmission. The rotating flaps and plate minimize material use compared to fixed boxes.

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Thermally insulated, waterproof, and high-strength packaging bag that provides improved protection for goods while reducing wrinkling and damage. The bag uses a composite structure with outer and inner paper layers sandwiched between insulating foam layers. Elastic adhesive is used to bond the layers. The outer layer has a convex buffer structure that disperses pressure. The insulating foam has a gradient height convex structure to prevent wrinkling. The adhesive is a polyurethane emulsion with thickener, wetting agent, and silane coupling agent for strength and elasticity.

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Flexible packaging film that provides robustness for bag-in-box and spouted pouches while allowing recyclability. The film has three layers: a biaxially oriented polyamide cap layer, a core layer, and a blown polyethylene seal layer with a compatibilizer. This combination provides strength for packaging rigors while having recyclable components. The polyamide cap and polyethylene seal can be recycled separately.

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Packaging structure for parts that improves workability and reduces costs compared to traditional vertical partition and tray insertion methods. The packaging structure has a base sheet and a separator sheet with multiple flaps that fold outwards. The parts are placed on the base sheet and the separator sheet is folded around them. This creates separate compartments without the need for engaging cuts or pre-formed openings. The folded flaps protect the parts and prevent them from moving during shipping. The design allows packing of mixed part types without separate trays, reduces material usage compared to vertical partitions, and simplifies packing compared to interlocking cuts.

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Packaging container design that prevents detachment of locking pieces between the side walls. The container has foldable side panels that lock together. The locking pieces engage with fixed edges on the inner panels when they fold back. The locking pieces are folded inward on the outer panels. The locking fold lines are shifted slightly towards the center of the inner panels compared to the outer fold lines. This alignment prevents misalignment when pasting the panels together. The locking pieces engage with fixed edges on the inner panels when they fold back, securing the side walls.

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Vacuum chamber for assessing the airtightness of packaged products like food items that cannot be tested by applying external pressure due to fragility concerns. The chamber uses sensors to detect deformation of the packaged product inside as vacuum is applied to assess seal integrity. This allows automated, high-speed testing of production lines compared to manual visual inspection. Sensors like cameras, distance sensors, and load cells measure product deformation as vacuum is applied to reveal leaks.

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