Package Performance Standards

Packaging machine for producing blister packs and a method for checking blister packs using the machine. The machine has a separating device to remove individual blister packs from a web, an inspection device with detection devices to optically scan the packs from both sides, and a transport device with receptacles to move the packs through the inspection area. This allows comprehensive inspection of blister packs in a compact and cost-effective manner.

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A laminate, packaging bag, and packaging body with high puncture resistance to prevent pinhole formation. The laminate has a specific crystal orientation in the nylon 6 film. The nylon 6 film has a high ratio of oriented crystal intensity to amorphous intensity when measured by X-ray diffraction, with a value of I1/I0 greater than 11.5. This indicates a low amorphous content and high crystal orientation in the nylon 6. The packaging bag and bodies made with this laminate have improved puncture strength compared to conventional laminates.

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Egg packaging lid with improved rigidity to prevent eggs from moving and potentially breaking during transportation. The lid has side walls with serrated projections that can grip knobby surfaces like egg cartons. The serrations are arranged with outer projections, an intermediate projection between them, and a hook on the inner projection. The intermediate projection is longer than half the lid width to provide stability. This prevents simultaneous movement of the outer projections that could damage eggs. Additional stiffening ribs on the edges of the lid can further prevent deformation. The ribs may have protrusions to better grip the cartons.

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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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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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Eco-friendly laminated film for packaging applications that maintains barrier properties and bonding strength after heat sterilization. The film has layers: an outermost stretched PP film, a barrier coating of modified PVA, an adhesive layer, an inner stretched PP film, and a heat seal layer of unstretched PP with lower melting point than the outermost layer. The barrier coating contains modified PVA crosslinked with organosilane compounds. The inner PP film has a lower melting point than the outermost film. This configuration allows the film to retain gas barrier and adhesion after heat sterilization.

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Biaxially stretched polyamide film with improved properties for food packaging and alcohol evaporants. The film has a specific composition and structure to balance properties like bending pinhole resistance, puncture strength, dimensional stability, and ethanol penetration. It contains polyamide 6 as the main component, with dispersed particles of a resin like PBAT, PEE, or POE having a maximum diameter of 1 μm or more. This provides plane alignment and crystallization parameters that enhance performance.

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Automated system for in-line sealing defect detection and expulsion of heat-sealed containers like food packaging. The system uses sensors to measure internal container pressure during inflation testing. If the pressure drops below a threshold, indicating a seal defect, the container is expelled from the line. This allows 100% sealing quality control without stopping the production line.

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Strawberry packaging container that prevents damage to the contents, allows easy checking without opening, maintains transparency, and is recyclable. The container has a body with a center support protrusion and deformation prevention ribs. The cover has inner grooves, support protrusions, and deformation prevention ribs. The container and cover are made of transparent PET. The design prevents contents shaking and damage by providing internal support and preventing deformation. The transparency allows checking without opening. The recyclable PET avoids environmental pollution and disposal costs.

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Heat shrinkable polyester film for labels on PET bottles with high shrinkage rate, puncture strength, and resistance to bag rupture when dropped, and excellent adhesion. The film contains 60 mol % or more of ethylene terephthalate, 5 mol % or more of diethylene glycol, and 0 mol % or more of non-crystalline monomer components. This composition provides optimal shrinkage, puncture strength, and drop resistance for PET bottle labels.

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Controlling a robotic manipulator to pack objects into containers by iterating packing attempts using image analysis and force feedback. The method involves aligning the object with the container based on imaging analysis, and then iterating packing attempts while monitoring contact forces. If excessive forces are detected, the packing is aborted and restarted from a shifted initial pose to prevent damage. This allows robust packing of objects into containers with sensitivity to forces that could damage the objects or container contents.

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Dry food packaging laminate and bag with improved impact resistance, heat sealability, and bag-making processability. The laminate has a base layer made of a biaxially oriented polypropylene film with high elastic modulus (500 MPa or more at 100°C) to prevent bag deformation during filling. The heat seal layer is mainly polypropylene with an ethylene-α-olefin copolymer having a melting point of 125-145°C and a 973cm-1 peak intensity divided by 973cm-1 peak intensity of 0.1-0.3. This balance of properties provides good impact resistance, low-temperature heat sealability, and bag-making processability for recyclable, environmentally friendly food packaging.

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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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Folding container with improved stability and impact resistance for holding food products. The container has a bottom wall, flange, side walls, flange tabs, and front reinforcing tabs. The flange tabs rest against the flange when folded to increase stability in the front area. The reinforcing tabs rest against the flange for additional front area stability. This prevents container collapse or damage during handling and shipping. The design provides increased protection for the food products inside.

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Packaging film with improved heat seal strength for reduced density packaging materials. The packaging film has a biaxially stretched film layer containing an olefin-based polymer. The film is analyzed by differential scanning calorimetry (DSC) with specific conditions to determine a property ratio. The ratio is ΔH/D, where ΔH is the heat of fusion at an endothermic peak observed in the DSC curve and D is the film density. The film has ΔH/D of 122.0 J/g·cm3 or less. This improves heat seal strength in packaging materials made from the film compared to films with similar density. The reduced density films have better strength and reduced plastic usage.

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Reinforced plastic bottles for packaging liquids that have improved impact resistance during transportation and handling. The bottles have a neck with equally spaced ribs extending from the neck to the body. The ribs transition smoothly into the neck and body. This reinforces the transition area between the neck and body, preventing cracking and breaking when the bottle is dropped or impacted.

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Heat treatment package for food that can stand on its own and prevent bursting during cooking in a microwave oven. The package has a self-supporting bag body and a zipper seal. The zipper seal has one side with a region that joins to the bag outer and another region that does not join. The joining region has an easy-peel section that separates when pressure rises during cooking to release steam and prevent bursting. This allows steam to escape without drying out the food like a vented package, but avoids contamination and bursting like a fully sealed package.

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A process for making biodegradable packaging materials from waste jute bags that has enhanced mechanical strength, water absorption, flame and heat resistance, low thermal conductivity, and high reflectance. The process involves delignifying the waste jute, phosphorylating it, washing, drying, and further treatments like homogenization, sonication, freezing, and lyophilization to modify the jute fiber properties. This results in biodegradable packaging materials with improved functionalities like water absorption, flame retardancy, and low thermal conductivity compared to unmodified jute bags.

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