Powder-Resin Premixing for Package Materials

Barrier coating composition for sustainable paper packaging that provides good barrier, sealing, and application properties. The composition contains 20-50 wt% sealing agent (e.g., hydrolyzed PVOH), 40-80 wt% biobinding agent (e.g., starch syrup), and 5-10 wt% anti-blocking agent (e.g., calcium stearate). This composition allows manufacturing of compostable and recyclable paper packaging with improved barrier properties to oxygen, grease, and oils.

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Composition and method for manufacturing fresh and fermented food packaging materials that effectively adsorb odor components like trimethylamine and have antibacterial properties. The packaging material is made by extruding a composition of high-density polyethylene (HDPE), silicon-based diatomaceous earth (DE), and zinc oxide (ZnO). The DE and ZnO are mixed with the HDPE as a composite powder before extrusion. The DE and ZnO increase surface area and adsorption capacity for odor compounds like trimethylamine. The ZnO also provides antibacterial properties.

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A process to make instant fish floss seasoning sachets using a combination of spices. The process involves sorting, cleaning, drying, grinding, and sieving the spices to make a powdered seasoning mix. The mix is then packed into sachets for convenient use in cooking fish floss dishes. The instant seasoning provides a practical and instant alternative to the traditional multi-step process of preparing fish floss with whole spices. It allows quick and easy seasoning of fish floss while still retaining the flavor and nutritional benefits of the spices.

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A solventless two-component adhesive for packaging materials that provides excellent adhesion to metal foils and metal deposition layers. The adhesive contains a polyisocyanate composition with a specific polyisocyanate compound and a polyol composition containing a polyol and a compound like dimethylolpropionic acid or dimethylolbutanoic acid. The adhesive can be used to laminate base materials without volatile organic solvents, reducing environmental impact and improving worker safety compared to traditional solvent-based adhesives. The adhesive cures when the two components are mixed and applied to the base materials before bonding.

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A powder packaging system to prevent variation in composition between packages when packaging a powder mixture containing different raw materials with varying shapes and sizes. The system uses a vibratory feeder with a trough that has parallel concave grooves in the bottom plate. The grooves disperse and hold the powder as it vibrates, preventing segregation and spreading compared to a flat bottom. This maintains a uniform powder composition as it is fed to a weighing section and packaged.

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Environmentally friendly food packaging made from oyster mushroom waste and molasses adhesive. The packaging material is made by mixing 80-95% finely powdered oyster mushroom baglog waste with 5-20% molasses, then drying, oven-baking, and molding the composite into packaging shapes. This uses mushroom waste as a biodegradable, strong, and lightweight alternative to plastic packaging, while the molasses acts as a natural adhesive.

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Filling food packages with dry ingredients like powdered food products in a way that minimizes residue in the package and surrounding area. The method involves alternating steps of volumetric filling and drawing in a flow along the open side. This is repeated multiple times before drawing in a final stream. The steps are: 1. Fill package with initial volume. 2. Draw in flow along open side. 3. Fill package with second volume. 4. Draw in flow along open side. 5. Repeat steps 3-4. 6. Draw in final flow. This sequence helps settle the powder and reduce residue compared to just volumetric filling.

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Lightweight and biodegradable food packaging made from waste palm fronds and maltodextrin adhesive. The packaging is made by softening palm fronds, mixing them with maltodextrin, drying, and printing. The maltodextrin acts as an adhesive to bind the palm powder into a cohesive packaging material. The resulting packaging decomposes completely in 7 days compared to styrofoam's 500 years.

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Two-component dryable adhesive for packaging materials that has excellent adhesion to metal foils and metal deposition layers even with low molecular weight. The adhesive is made by combining a polyisocyanate composition with a polyol composition. The polyisocyanate composition contains a polyisocyanate compound with multiple isocyanate groups. The polyol composition contains a polyol and a compound selected from dimethylolpropionic acid or dimethylolbutanoic acid. This adhesive can be applied to metal foils and metal-coated substrates in the packaging industry using dry coating methods like roller coating, without requiring high temperatures or solvents. It provides strong adhesion to the metal surfaces, enabling dry lamination of metal foils and metalized substrates.

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Powder coating compositions for metal packaging like food cans that provide benefits like reduced environmental impact compared to liquid coatings. The compositions are free-flowing powders that can be applied to metal substrates using electrostatic powder coating methods. The powders consist of chemically produced polymer particles with specific size distributions and molecular weights. The powders adhere well to metal and form hard coatings suitable for food contact applications. The compositions avoid certain additives like bisphenols and provide properties like flexibility, color options, and patterned coatings for metal packaging applications.

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Filling food packages with dry ingredients like powders in a way that minimizes residue in the package and meets hygiene requirements. The filling method involves volumetrically dosing the dry ingredients into the open side of the package, then creating two laminar flows inside the package: one along the width of the open side and one along the center. This ensures residue is removed from the edges and center of the open side before closing the package.

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Two-component solvent-free adhesive for laminates that can be dried with excellent initial cohesive strength. The adhesive contains a polyisocyanate composition with a polyisocyanate compound, a polyol composition with polyester polyol, a compound with polyoxyalkylene chains and hydroxy groups, and a polyamine compound. This adhesive provides initial cohesive strength that is higher than freshly made and reduces over time compared to solvent-based adhesives. The adhesive is useful in laminate manufacturing as it allows air bubbles to be minimized and reduces defects.

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Eco-friendly biodegradable packaging and cushioning materials made from wheat bran and waste biomass. The method involves softening wheat bran with a basic solution, mixing it with waste biomass like rice straw or coconut husk, treating with acid, molding into shape, and heat treating. This creates a biodegradable structure using natural materials that can replace conventional packaging. The mixing ratio of wheat bran and waste biomass can be adjusted to tailor the physical properties.

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Eco-friendly packaging and cushioning materials made from wheat bran and waste biomass that can replace traditional plastics. The process involves softening wheat bran in a basic solution, mixing it with waste biomass, treating with acid to form a clay, molding, and heating. The clay made from wheat bran and biomass acts as a natural binder to form a structure. Adjusting the wheat bran and biomass ratios allows customizing the material's physical properties. The biodegradable material can replace plastics in packaging and cushioning applications.

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Coating composition for producing biodegradable food packaging using natural preservatives. The composition contains furcelleran, a polysaccharide, and protein. Furcelleran improves the physical and mechanical properties of the films. It provides benefits like flexibility, transparency, and odorlessness. The combination of furcelleran, protein, and polysaccharide creates a biodegradable packaging material that can inhibit microbial growth and extend food shelf life using natural preservatives.

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Solvent-free adhesive for packaging applications that provides fast build-up of adhesive strength and heat seal strength, particularly in low humidity environments. The adhesive contains specific combinations of polyols and polyisocyanates. The polyol has a polyester component with 30-70% content, and optionally a hempseed oil or hempseed oil derivative component. The polyisocyanate contains a reaction product of polyols and polyisocyanates. The adhesive has a NCO/OH ratio of 2.5-4.5. This composition allows faster development of cohesive force compared to traditional solvent-free adhesives.

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Method to manufacture packaging films with improved formability, air permeability, and resistance to dew formation. The method involves mixing calcium carbonate, sodium sulfate, synthetic resin, and optionally an alcoholic defoaming agent. The mixture is stirred to remove air bubbles. The mixture is then molded into the desired film shape using extrusion, blow molding, or molds. The films are then reacted with water to convert the sodium sulfate into hydrated sodium sulfate, which provides the micropores for air permeability and prevents dew formation when packaging hot items.

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Packaging system for producing pouches containing powder products like detergent that have consistent fill composition to improve performance. The system uses a unique powder distribution technique where the powder discharge opening of the distributor overlaps with the channel openings during filling. This ensures that powder flows into all channels simultaneously and fills the pouches with homogeneous powder content. The overlapping movement is synchronized with the distributor and channel motion. The system also has features like cyclical movement, parallel paths, and parking sections to optimize powder flow.

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Mobile, modular mixing and packaging plant for powdered products that can be transported in a standard shipping container. The plant has interchangeable modules for dosing, mixing, cooling/drying, liquid injection, and bagging. It allows versatile processing of powdered products like food ingredients without fixed infrastructure. The modular design enables customization, scalability, and containerized transport. The plant is controlled by a PLC and can be operated remotely.

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Two-part masterbatch for making oxygen barrier packaging articles like plastic bottles. The masterbatch contains an unsaturated thermoplastic polymer with high iodine value (10 or more) in one part and an oxygen scavenging catalyst in another part. The two parts are separate solid particles or liquid. This allows recyclable oxygen barrier packaging by combining the parts during processing. The unsaturated polymer scavenges oxygen while the catalyst enhances the reaction.

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