Edible Packaging Materials for Sustainable Food Solutions

A degradable plastic film for food packaging that can biodegrade after use to reduce environmental pollution. The film has multiple layers including an inner layer, middle layer, outer layer, and a decorative pattern layer. The outer layer contains a nano-calcium oxide film, photosensitive coating, and waterproof layer. The calcium oxide film promotes biodegradation, the photosensitive coating triggers degradation when exposed to UV light, and the waterproof layer prevents moisture ingress.

Source

Multilayer film for sealing food containers like coffee capsules that is home compostable, has good oxygen barrier properties, and allows efficient opening by machines. The film is a composite of layers with different materials. The outer layer is made of biodegradable polymers like S2PC-PBS or PBS/PBSA. The inner layer is porous paper with high air permeability. An optional middle layer is more paper to prevent coffee escape. This combination provides sealing, oxygen barrier, and machine compatibility while allowing biodegradability.

Source

Food-grade packaging film made from modified starch that provides improved mechanical, degradation, and antibacterial properties. The film is made by mixing modified corn starch, methyl cellulose, glycerin, triethyl citrate, frankincense extract, and water. The modifications to the corn starch enhance its compatibility with other film components and improve film properties. The film can be prepared by dissolving the ingredients in water, spreading it out to dry, and peeling off the film. The film has better strength, degradation resistance, and antibacterial performance compared to unmodified starch films.

Source

Biodegradable packaging film made from biodegradable materials like polyhydroxyalkanoate (PHA), benzoxazine, and polyvinyl alcohol (PVA). The film has improved oxygen barrier properties and mechanical strength compared to PHA films alone. The addition of benzoxazine reduces cold crystallization temperature and improves compatibility with PHA. PVA further stabilizes crystallization. The film can be prepared by mixing the materials, granulating, and extruding into film.

Source

Environmentally friendly and degradable food packaging film made from starch as the main raw material. The film improves water resistance and mechanical properties by adding ingredients like methylcellulose, glycerin, polylactic acid, and chain extenders. The starch film is also coated with polylactic acid to further enhance water resistance. The film can degrade when composted or buried.

Source

Fully biodegradable food packaging paper that can replace conventional plastic packaging. The packaging paper has layers that provide both water and oil barrier properties. The paper base is coated with a layer to receive oily monomers, followed by a layer of waterproof and oil-repellent resin. The oily monomer layer smooths the surface for the upper layer to adhere. The resin layer blocks water and oil. The layered paper is biodegradable because all materials are biodegradable.

Source

Preparation method for biodegradable biomass multifunctional antibacterial packaging film for sustainable food preservation. The method involves dissolving oxidized starch and indole acid monomers in a solvent like N,N-dimethylacetamide. The solution is stirred, neutralized, and cast into a film. The resulting biomass film has antibacterial properties against E. coli and Staphylococcus aureus, extends food shelf life, and can be prepared using renewable resources.

Source

Rapidly degradable polyvinyl alcohol packaging film that dissolves completely in water within 24-48 hours when immersed. The film is made by printing a water-soluble polyurethane layer onto the surface of the polyvinyl alcohol film. The polyurethane printing ink components include hydroxyethyl cellulose, titanate catalyst, ethylene glycol, film-forming agent, neutralizer, carbohydrate solution, and co-solvent. The ink is printed using gravure printing at specific roller depths and speeds to optimize drying. The film can be stored and then fully dissolves when exposed to water, providing an environmentally friendly and biodegradable alternative to traditional plastic packaging films.

Source

High barrier biodegradable film that provides both oxygen and moisture barrier properties while being biodegradable. The film has layers of cellulose nanofibers, polylactic acid (PLA), and optionally an aluminum oxide deposition layer. The cellulose nanofiber layer enhances barrier properties. Coating the nanofiber dispersion onto the PLA base provides a composite film that can be printed on and adhered to.

Source

Edible coatings for protecting foods like fruits, vegetables, and processed foods from moisture loss, UV damage, and nutrient leaching. The coatings are made from nanocellulose and nano calcium carbonate. The coatings are edible, transparent, and provide barrier properties against water, gases, and UV light. They prevent moisture loss, prevent UV damage, and prevent nutrient leaching in fruits and vegetables. The coatings can be applied before or after harvest to mitigate post-harvest damage. The coatings can also be used to protect frozen foods from drip loss during thawing.

Source

Biodegradable food packaging made from a layered structure of alternating pullulan-nanocellulose and nanocellulose-lignin films. The packaging has improved water stability and mechanical properties compared to single-layer pullulan films. The sandwiched structure with an outer layer of nanocellulose-lignin and an inner layer of pullulan-nanocellulose provides better barrier properties and folding resistance. The biodegradable packaging is fully biobased and can be prepared by alternately stacking the composite films and pressing them together.

Source

Composite packaging bag film made of layers like kraft paper, polyurethane, biodegradable material, and cotton. The layers are formed by pressing. This provides a more environmentally friendly packaging bag that is easier to biodegrade compared to traditional bags made of synthetic materials. The biodegradable layer can be filled with agents like glycerol, sorbitol, citric acid, etc. to enhance biodegradability. The composite structure allows for properties like waterproofness, strength, and biodegradability.

Source

Degradable food packaging film that breaks down into harmless substances after use. The film contains a blend of materials like starch, chitosan, gum arabic, imitation spider silk, polyethylene, polymethylene carbonate, plasticizer, lubricant, crosslinker, photosensitizer, light stabilizer, dispersant, and auxiliary agent. The photosensitizer comprises a mixture of spiropyran, titanium dioxide, and cerium stearate. The film degrades under light due to chain scission and oxidation caused by the photosensitizers. The cerium stearate reduces polyethylene molecular weight for easier biodegradation.

Source

High-performance degradable packaging film that improves degradation speed compared to traditional films. The film has a PLA substrate layer sandwiched between two PVC degradation layers. Cotton sliver layers are embedded between the PLA and the PVC layers. When the film is degraded, the cotton slivers absorb moisture and substances that promote degradation of the PLA and PVC layers. This allows inner surfaces to be degraded as well, accelerating degradation compared to outside-in degradation.

Source

Bio-based fresh-keeping packaging film made from agricultural waste like wood scraps, straw, and fruit peels. The film is prepared by dissolving the biomass components in a low eutectic system like choline chloride/lactic acid. This synergistically dissolves and modifies the biomass while also aiding film formation. Polymers like PVA and plasticizers like glycerin are added to improve film properties. The resulting bio-based film has antimicrobial, UV blocking, and antioxidant properties for fresh produce preservation.

Source

Packaged food concentrates, like soup bases, where the package has an edible primary package in contact with the concentrate and a recyclable secondary package. The edible primary package provides barrier properties to protect the concentrate. The edible primary package uses materials like alginate, gellan gum, wax, chitosan, or pectin to provide barrier properties like oxygen, water, and grease resistance. This allows using edible packaging for long-shelf-life concentrates without touching by consumers. The secondary recyclable package protects the edible primary package from being touched.

Source

Food-grade degradable plastic packaging film with improved toughness and ductility compared to existing degradable films. The film is made by blending specific ratios of polylactic acid (PLA), thermoplastic starch (TPS), and a copolymer of butylene adipate and butylene terephthalate (CPBAT). The film production process involves drying the PLA to reduce moisture content, then mixing the blended materials at high speed. This balances the properties of PLA for strength, TPS for biodegradability, and CPBAT for ductility to create a film that degrades in the environment but doesn't easily crack or break.

Source

Biodegradable frozen food packaging bags made from bioplastic materials that degrade in the environment. The bags have an outer layer with PBAT and modified PLA, an inner layer with PBAT and silicone, and a middle layer with paper. The bioplastic layers provide freezing functionality while the paper layer has a paper-like appearance. The bags degrade faster than conventional plastics due to the biodegradable bioplastic components.

Source

Biodegradable film for eco-friendly packaging that balances properties like flexibility, transparency, and thermal bonding strength. The film uses a blend of polylactic acid (PLA) and vinyl acetate (VAc) copolymers. The PLA provides rigidity and transparency while the VAc copolymer adds flexibility. The film has thermal bonding strength over 4 N/15mm when heat sealed. This allows adhesive bonding without additional adhesives. The film is manufactured by extruding and stretching the blended resins.

Source

Biodegradable multilayer film for eco-friendly packaging that degrades in soil and oceans, has excellent barrier properties against moisture and oxygen, and can be produced efficiently. The film has a base layer, a biodegradable resin layer made of polyhydroxyalkanoate (PHA) resin, and optionally a barrier layer. The PHA resin layer has 0.5-15 kgf/15mm thermal bonding strength, 3 g/m2-day water permeability, and 10 cc/m2-atm-day oxygen permeability. This allows biodegradability without aluminum or nylons while maintaining barrier properties. The multilayer film can be manufactured by melt-extruding the PHA resin directly onto the base layer.

Source

Edible film and coating compositions for food packaging that have antimicrobial properties to prevent spoilage and foodborne illnesses. The compositions contain a conjugate of bio-fiber gum and whey protein isolate, as well as food grade antimicrobials like essential oils. The conjugated bio-fiber gum and whey protein isolate improves film properties like water sensitivity and gas permeability. The antimicrobials provide active protection against bacteria, fungi, and viruses. These films can be applied to foods to extend shelf life and reduce waste by inhibiting spoilage and pathogen growth.

Source

An edible seaweed sheet with improved texture and shelf life, and a method to prepare it. The sheet contains a seaweed layer sandwiched between grain layers, with a moisture barrier coating on selected surfaces. The barrier prevents moisture ingress to maintain crispness. The sheet is made by bonding grain and seaweed sheets, then coating a barrier on the bonded areas and one side.

Source

Edible coating and active packaging films made from sodium alginate and a seaweed called Padina pavonica to extend the shelf life of fruits and vegetables. The films have antioxidant and antimicrobial properties that inhibit post-harvest spoilage when applied as coatings or packaging. They provide an alternative to refrigeration and modified atmospheres for preserving quality without adding costly chemicals. The alginate-seaweed films are edible and biodegradable.

Source

Eco-friendly laminated film and packaging material using biodegradable and recyclable materials to replace traditional plastic films for food packaging. The film has layers of biodegradable polymers like PBAT, PBS, PHA, PLA, etc., sandwiched between a paper layer and a coating layer. The paper layer contains softwood and hardwood pulp with high strength and low moisture content. The coating layer improves barrier properties. The film can be used for food packaging applications like frozen food where plastic alternatives are needed.

Source

Production of biodegradable edible film with antimicrobial and antioxidant properties using a combined biocomposite of gelatin, carboxymethyl cellulose, glycerol, and essential oils of rosemary and cinnamon. The film improves mechanical properties, water vapor penetration resistance, and antimicrobial/antioxidant properties compared to pure gelatin films. The combined biocomposite is prepared by dissolving gelatin and carboxymethyl cellulose in water, adding glycerol as a plasticizer, and mixing in the essential oils.

Source

Biodegradable light packaging film bag for food items that is made from renewable materials and breaks down after disposal. The bag has a barrier coating containing components like butyl phthaloyl butyl glycol, nano-TiO2, stabilizers, paraffin wax, zeolite, SiO2, tert-butyl methylphenol, edible essence, glycerin, diethylene glycol, monoglyceride, sodium alginate, bentonite, dimethicone, PBAT, PLA, modified starch, and waterproofing aids. The coating provides high barrier properties to light and moisture. The bag also has an aluminized paper layer. The bag is suitable for lightweight packaging of items like candy, tea, and cakes.

Source

Eco-friendly food packaging method using biodegradable materials that reduces food waste and prevents spoilage. The method involves coating the food with a first film made of a material that slows decay, followed by a second film that suppresses moisture evaporation. An automatic packaging machine lowers a net filled with the coating materials over the food. The first coating slows spoilage and the second prevents moisture loss. The biodegradable materials are eco-friendly and avoid issues like VCM in PVC wraps.

Source

A biodegradable plastic film and bag with improved water resistance, air tightness, mechanical properties, and biodegradability compared to conventional plastic films. The film is made by laminating two layers. The inner layer is made of biodegradable polymers like polylactic acid, polyadipate/butylene terephthalate, and PBS. The outer layer is a cellulose film coated with polyvinylidene chloride. A small amount of adhesive is used to bond the layers. The inner biodegradable layer provides biodegradability and the outer layer provides water resistance and air tightness. The glue is used to seal the layers together.

Source

Biodegradable film packaging made from sustainable, plant-based materials that are compostable and eco-friendly. The films are formed using soluble polysaccharides and derivatives like cellulose, starch, pectin, alginate, xanthan gum, etc. These materials are combined in specific ratios and processed into films that can dissolve in water. The films can be used for unit-dose packaging of foods, pharmaceuticals, and other products. The biodegradable films avoid polluting plastics and reduce waste compared to conventional packaging.

Source

Composite edible water-soluble packaging film made by blending three starches, vegetable protein, plasticizer, preservative, emulsifier, and auxiliary in specific weight ratios. The film is prepared by solution casting or extrusion blowing. The multi-component blending polymerization modifies the starches for improved properties like solubility, emulsification, and film-forming. The vegetable protein adds strength and toughness. The plasticizer, preservative, emulsifier, and auxiliary enhance film characteristics. The blended components are dissolved in water and processed into the edible film. The film can dissolve in water and is used for applications like cosmetics, food, medicine, etc.

Source

Edible cup cover that seals the opening of a paper cup to prevent spills. The cover is made of edible materials like wafers or starch structures instead of plastic. This allows the cover to be eaten after use, eliminating disposable plastic lids. The edible cover protects the contents from spills and pollution during transport. It also provides a healthier and more environmentally friendly alternative to plastic lids.

Source

Acid-hydrolyzed starch composite film for food packaging with improved properties and lower cost compared to pure biodegradable polyesters. The film is made by blending acid-hydrolyzed starch with biodegradable polyesters like PBAT, along with other additives like glycerol, hydroxypropyl methylcellulose, and citric acid. The acid hydrolysis of the starch improves its compatibility with the polyesters and enhances film properties like strength and water resistance. The starch composite films can be produced using extrusion blow molding, allowing large-scale manufacturing at lower cost compared to multi-step processes. The blended films provide a balance of properties for food packaging applications.

Source

Production technology for degradable frozen food packaging film with photothermal antibacterial properties. The packaging film is made by coating a wheat bran extract film with polydopamine, a photothermal agent, and hydrophobic silica particles. The wheat bran extract provides a biodegradable base film, the polydopamine provides photothermal thawing and antibacterial properties, and the silica particles reduce ice adhesion. The film can thaw frozen food using near-infrared light, inhibit bacteria like Listeria, prevent freezer burn, and degrade when composted.

Source

Biodegradable seaweed film coated with beeswax that has improved moisture resistance and tensile strength. The film is made from seaweed extracts like kelp and algae, with plasticizers like glycerol added. Beeswax is then applied to one side of the film. This process increases the moisture resistance and tensile strength of the biodegradable seaweed film compared to just coating with beeswax or using beeswax in the film.

Source

High barrier, biodegradable composite film for dried fruit packaging that combines the benefits of paper's biodegradability with plastic's barrier properties. The film has a sequential layering structure starting from the inside: heat-sealing layer, adhesive layer, intermediate layer, second adhesive layer, barrier layer, and surface layer. This layering provides good barrier properties for dried fruit preservation while allowing biodegradability. The heat-sealing layer has a three-layer structure with a surface heat-sealing layer, intermediate layer, and anti-blocking layer.

Source

Biodegradable plastic film for fruit and vegetable packaging that extends shelf life without harming the environment. The film is made from a blend of biodegradable polymers like polycaprolactone and polyhydroxy fatty acid ester, along with inorganic fillers like wollastonite and hydrotalcite, organic fillers, and antibacterial agents. The fillers enhance mechanical properties, porosity, and gas/water diffusion. The film decomposes naturally in the environment, unlike petroleum-based plastics, and can help reduce food waste by preserving produce.

Source

A high-transparency, degradable film material for packaging applications made by blending PLA and PPC polymers with additives. The film composition has PPC content of 10-40% and PLA content of 58-88%. The additives include a wax, coupling agent, and chain extender to improve compatibility and properties. The blending and extrusion process involves cold mixing, hot mixing, and blow molding at temperatures below 190°C.

Source

Biodegradable frozen food packaging bags that are environmentally friendly and compostable. The packaging bags have an inner cellulose film made from renewable materials like plant fibers, and an outer biodegradable heat-sealing film made from polymers like PBAT and PLA. The inner cellulose film prevents freezer burn and moisture loss, while the outer biodegradable film seals the bag. The bags decompose naturally when discarded, avoiding plastic pollution.

Source

Preparing edible food packaging films with antibacterial properties using natural ingredients like cyclodextrins, konjac glucomannan, and essential oils like perilla oil. The films are made by dissolving high-amylose corn starch and konjac glucomannan in water, adding cyclodextrin solutions and essential oils, and forming the film by evaporation. The films contain entrapped supermolecules like cyclodextrin that have antibacterial properties. The films are used for preserving foods like dried fruits, meats, and breads by releasing the antimicrobials over time. The films also have good moisture barrier and mechanical properties.

Source

Moisture barrier biodegradable film for food packaging that addresses the issue of biodegradable films having high moisture permeability. The film has a water-soluble acrylic coating layer containing a water-soluble polyacrylic resin. This provides a significant reduction in moisture permeability compared to the base biodegradable film. The coating is dried to form a durable coating layer. Optionally, a protective layer can be added over the acrylic coating. This allows biodegradable packaging that can protect food from moisture without using petroleum-based plastics.

Source

An environmentally friendly, breathable, and anti-condensation packaging film for fruits and vegetables that is made from a specific composition of polymers. The film is composed of PP, PLA, and MCC in mass ratios of 20:30:50. It is prepared by casting the polymer blend in a solution and then drying it into a film. The film has properties like high oxygen permeability, low water vapor permeability, and resistance to condensation that make it suitable for packaging fruits and vegetables to prevent spoilage and mold growth. The use of biodegradable PLA and MCC polymers also makes it environmentally friendly.

Source

Water-dispersible and biodegradable packaging films that can dissolve in water but also degrade in composting environments. The films have an inner layer with high water dispersibility and an outer layer with high biodegradability. This allows packaging liquids and moisture-sensitive products without dissolution issues. The inner layer can be printed on before coating the outer layer. The films can be made by extruding the inner layer and coating it with the outer layer. The outer layer can be cured using heat lamps or rollers to prevent dissolution.

Source

High-strength, fully degradable starch-based film for packaging applications that avoids the use of non-biodegradable plastics. The film comprises enzyme-treated starch, enzyme-treated plant fibers, dialdehyde starch, chitosan powder, amino-terminated four-arm polyethylene glycol, glycerin, and polycaprolactone. The enzyme treatment partially debranches the starch to improve properties. The film is made by melt extrusion processing. The starch-based composite film provides mechanical strength suitable for packaging without the need for non-biodegradable plastics.

Source

Edible food packaging film made from biodegradable materials that is edible, degradable, and has good barrier properties. The film is prepared using a blend of polyhydroxy fatty acid ester, pullulan, and modified pea protein isolate. The polyhydroxy fatty acid ester provides barrier properties, pullulan adds flexibility, and the modified pea protein isolate enhances mechanical strength and heat resistance. The film can be used for food packaging that is degradable, edible, and provides better barrier properties compared to traditional plastic packaging.

Source

A biodegradable and recyclable packaging film that replaces aluminum foil in high-barrier packaging without sacrificing barrier properties. The film is made by laminating a paper layer with oxygen and moisture barrier properties of 0.01-1 cc/m2-day and 0.01-1 cc/m2-day respectively, with a biodegradable film layer. The biodegradable film can contain materials like PBAT, PBS, PHA, PLA, TPS, PVA, PCL, Oxo-PE, Oxo-PP. The film has barrier properties of 0.01-1 cc/m2-day for oxygen and 0.01-1 cc/m2-day for moisture. The laminated film can be biodegradable or biodegradable by microorganisms, moisture, oxygen, light, and

Source

Biodegradable packaging film made from natural, renewable polymers with high strength and biodegradability. The film composition includes corn starch, sorbitol, diethylene glycol, stearic acid, calcium stearate, monoglyceride, ethylene-acrylic acid copolymer, low density polyethylene, high density polyethylene, and polylactic acid. The film is prepared by extrusion processing the ingredients at specific ratios. The biodegradable packaging film has good mechanical properties and degrades in composting conditions.

Source

Environmentally degradable waterproof coating packaging paper that is waterproof, oil-proof, heat-sealable, non-toxic, and harmless. The paper has three layers on one side of a paper substrate: an inner layer of polyvinyl alcohol acid copolymer and thermoplastic starch, an intermediate layer of glycolic acid-rich polyvinyl alkyd copolymer, and an outer layer of polydioxanone. The layers provide waterproofing, oil resistance, and heat sealing ability without using plastics like PET or PVC. The biodegradable materials used in the paper can be broken down by bacteria and composted.

Source

Biodegradable barrier film for food packaging that has excellent oxygen and moisture barrier properties while also being biodegradable. The film contains a biodegradable polymer like PLA, PVA, PBAT, or PBS, plate-shaped montmorillonite clay, a dispersant, and a lubricant. The film is biaxially stretched to orient the montmorillonite parallel to the surface. This provides improved barrier properties compared to using just the biodegradable polymer. The biodegradable film can be recycled and degrades when buried.

Source

Degradable packaging film that is biodegradable and environmentally friendly compared to conventional plastic packaging films. The degradable packaging film has a layered structure starting with a paper base layer, followed by an ink layer, an adhesive layer, and a degradable film layer on top. The ink layer is printed on the paper base layer. The adhesive layer is applied on the ink layer and sticks the degradable film layer to the base layer. This allows the film layer to decompose in the environment when exposed to sunlight and microbes, promoting biodegradation of the packaging film after use.

Source

Edible packaging material that can be consumed after use to eliminate the environmental problem of disposable packaging. The material is made from edible components that can be digested by the body. The packaging contains a mixture of pullulan, starch, and protein in specific proportions. The pullulan acts as a binding agent, starch provides structure, and protein adds strength. This allows the packaging to be molded and used as a replacement for conventional disposable packaging like foam boxes and plastic bags. After use, it can be consumed along with the contents without harm. The edible packaging degrades in the digestive system like food.

Source