UV Stabilizers for Package Protection

Active and intelligent packaging film for food, cosmetics, and pharmaceuticals that changes color based on pH, has barrier properties against UV and visible light, contains antioxidants, and delays degradation. The film is made by blending alginate and gelatin with curcumin (turmeric) and olive leaf extract. The curcumin provides color sensitivity, the olive leaf extract adds antioxidants, and the film itself has barrier properties. The blended film can report product quality and safety, extend shelf life, and is biodegradable.

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Short wavelength light-shielding film for packaging materials that allows contents to be seen through while blocking UV and short visible light. The film has an ink layer containing zinc oxide, an orange pigment, and a yellow pigment. The ink has high UV/short wave blocking while allowing visual recognition. The ink coating is 3g/m2 on the film. The film can be used as a laminate for secondary packaging of products like medicines. The ink and film provide both UV/short wave protection and visibility compared to opaque UV barriers.

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Polypropylene film with reduced environmental impact, improved stability, and color retention over time. The film contains 10-50% bionaphtha-derived propylene units and 300-1000 ppm of phosphorus-based antioxidant. It uses propylene derived from bionaphtha as a raw material to reduce environmental impact. Adjusting antioxidant levels prevents color and property degradation. The film can be used in packaging materials and laminates.

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Blow molded plastic bottle with both gas barrier and light blocking properties for beverage containers. The bottle is made of synthetic resin like PET and has a vapor deposited film on the inner surface for gas barrier. The bottle is also colored with a dye to block light. This allows the gas barrier film to work effectively since the dye prevents protrusions on the surface that would disrupt the film. The dye can be any color and the vapor deposition technique can be diamond-like carbon (DLC) or other gas barrier coatings. The biaxial stretch blow molding process is preferred.

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Preparing a grass-derived multifunctional nanomaterial film for food packaging that enhances mechanical properties, water resistance, UV protection, oxygen scavenging, and antimicrobial properties. The film is made by incorporating nanomaterials extracted from dried darbha grass, like carbon dots, cellulose nanofibers, and silver nanoparticles, into PVA films. The grass nanomaterials improve the film's performance compared to standard PVA films.

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Liquid printing ink for gravure and flexographic printing that resists yellowing after printing and has excellent blocking resistance. The ink contains a binder resin, colorant, solvent, and antioxidant. The antioxidant is present in an amount of 0.01-5.0% based on the total ink solids. The antioxidant prevents yellowing of the ink and the printed material over time. The ink can contain a cellulose-based, polyamide-based, urethane-based, acrylic-based, or vinyl chloride-based binder resin. The antioxidant can be a hindered phenol or phosphite compound.

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Making bioplastics from renewable sources like palm starch and lignin without adding many fillers or additives. The bioplastics have properties like UV shielding, antioxidants, biodegradability, and mechanical strength. The method involves mixing the palm starch, lignin, glycerol, and water to make bioplastics that can be molded and dried.

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Single-layer opaque plastic bottle with high light protection that achieves nearly complete light occlusion. The bottle is made from a single layer of plastic containing a specific filler composition. The filler is dispersed in the plastic during manufacturing to provide high light blocking without needing multiple layers or coatings. The filler composition includes a white pigment like titanium dioxide (TiO2) along with an additional filler like aluminum (Al) that absorbs light without reflecting it. This combination provides both hiding power and high light absorption to make the bottle nearly opaque.

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Heat-sterilizable multilayer films for medical packaging that protect light-sensitive medications. The films contain a middle layer with UV absorbers and colorants made from inorganic pigments like iron oxides, ferrites, mica, and mixed phase oxides. This layer sandwiched between outer layers helps prevent light degradation of contained drugs. The films are produced by coextruding the layers.

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3D printed packaging for medicines, herbs, vitamins, and supplements that provides better protection against degradation compared to traditional packaging. The packaging is cylindrical with two layers: an inner layer for product storage and an outer layer containing a desiccant. This dual-layer design provides additional moisture barrier for the inner product layer. The packaging is 3D printed using biodegradable polylactic acid (PLA) filament. The PLA has properties like higher light protection and oxygen barrier compared to common packaging materials. The 3D printing allows customized shapes and designs for better protection.

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Packaging material with excellent light shielding properties for preventing light-sensitive products from deteriorating. The packaging has a transparent layer and a colored layer in sequence from the outer side. The colored layer is composed of three layers in order: silver, white, and black. This stacking order provides superior light absorption compared to other layer sequences. The silver layer reflects light, the white layer scatters light, and the black layer absorbs light. This prevents light transmission through the colored layer and protects the inner contents.

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Packaging material for hair dye that prevents corrosion, leakage, and label damage. The packaging has three layers: a protective layer with the printed instructions, a light-shielding layer between the protective and sealing layers, and a sealing layer. The light-shielding layer blocks light to prevent hair dye degradation. The sealing layer resists corrosion from the dye. This prevents leaks, label damage, and dye degradation compared to bottles.

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Gas barrier films, laminates, and packaging containers with improved gas barrier properties, reduced yellowing, and reduced film breakage during manufacturing. The films contain chemically recycled polyester with a specific low molecular weight composition. The chemically recycled polyester has an area ratio of 1.9-5.5% for components with molecular weight 1000 or less in the biaxially oriented film. This balances low molecular weight components for gas barrier properties against reducing yellowing and film strength issues. The films can also have coatings, protective layers, and compositions with oxazoline or urethane groups to further enhance adhesion and barrier performance. The compositions can be used in laminates and containers with improved sealing and barrier properties.

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Active biodegradable plastic packaging film made from pear waste that has improved mechanical properties, UV barrier, oil barrier, and biodegradability compared to conventional plastics. The film is made by combining mashed pear peel and pulp extract, starch solution, and glycerol. The pear waste acts as a filler to enhance properties, starch as a crosslinking agent, and glycerol as a plasticizer. The film is cast and cured to create a biodegradable packaging material with functional properties like antioxidant activity and moisture control. The film can be used in food packaging, pharmaceuticals, and other applications requiring sustainable and active packaging solutions.

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Contact lens packaging container and product that blocks light to protect the lenses and solution inside. The container is made of a plastic material with a toner dispersed in it. The toner provides light blocking properties without changing the container color. The toner concentration and container thickness are optimized to achieve a minimum 20% light blocking rate in the visible spectrum. This prevents degradation of lens components and allows visibility of the lenses and solution inside.

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A packaging container and product for contact lenses that blocks light to protect the lenses and solutions inside. The container is made of a plastic material with a toner dispersed in it. The toner contains particles like rubber. The container blocks at least 20% of light in the visible spectrum when measured with a spectrophotometer. This prevents excessive light exposure that can degrade the contacts and solutions. The toner particles disperse in the plastic during manufacturing to create the light-blocking container.

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Contact lens packaging container with a color to block light and protect lens contents. The container is made by dispersing a color powder in the plastic material used to mold the container. The container has a light blocking rate of at least 20% in the visible spectrum. This prevents excessive light exposure of the lens and buffer solution inside. The color powder dispersal can be a single step or multiple steps.

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Active and intelligent food packaging made by grafting curcumin onto polypropylene using reactive extrusion. The curcumin is covalently bound to the polymer backbone to prevent migration. The curcumin in the packaging material provides antioxidant and radical scavenging properties to prevent food spoilage. The packaging also changes color in the presence of ammonia, indicating spoilage. The curcumin-grafted polypropylene has improved UV barrier properties compared to native polypropylene. The reactive extrusion method allows scalable production of the active and intelligent packaging.

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Resin composition for packaging materials with improved thermal stability, heat resistance, light resistance, and reduced microplastic formation during processing and disposal. The composition contains EVOH copolymer with specific ethylene content ranges and end group structure, along with aluminum ions. The EVOH has a total carboxylic acid and lactone ring content of 14-78 μmol/g, and the aluminum ion content is 0.002-0.17 μmol/g EVOH. This composition suppresses lump formation during melt processing, has better heat and light resistance, and reduces microplastic generation compared to EVOH alone. The aluminum ions interact with the end group functionalities to stabilize the polymer structure.

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Eco-friendly, biodegradable packaging material made from natural resources like iron oxide nanoparticles, chitosan biopolymer, and phenolic compounds extracted from cashew shells. The packaging material has improved properties like UV resistance, oxygen barrier, microbial resistance, and thermo stability compared to conventional packaging. It also contains natural antioxidants and antibacterial agents. The formulation aims to address issues like waste management, toxicity, and sustainability in packaging by using renewable resources and avoiding synthetic chemicals.

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