Wrappers TRIZ Cases

A foam-formed cellulosic fibre-material combines coarse fibres with a reinforcement fraction to create low-density bulk sheets.

A square bowl design incorporates opposed handles for pouring and a bottom indentation for storing snacks.

Unstretched resin film blends polyethylene terephthalate with a second resin to lower tear strength.

Discontinuous coatings with mineral fillers create embossed effects on non-deformable laminates, solving material selection limits in food packaging.

Selective exterior coating on a water-soluble container shell controls dissolution timing, reducing recycling costs and waste from beverage packaging.

Multilayer coextruded film uses alternating ethylene vinyl alcohol and low crystallinity polymer nanolayers to achieve high light transmittance.

Oxidized aluminum layer integrates into recycled pulp while maintaining low emissivity for thermal insulation.

A multi-component microwave food packaging cover uses apertures to manage fluid flow during heating.

A coating film comprising calcium carbonate particles and a perfluoroalkyl copolymer creates surface irregularities that resist liquid adhesion.

Rapid cooling after heating reduces bubble entrapment, ensuring strong adhesion during high-speed retort processing.

Amorphous fold holding layer balances shrinkage and aroma retention.

Phosphonic acid polymer reacts with aluminum barrier layer to reduce surface electrical resistivity, preventing static-induced adhesion of powdery substances.

Segmented sheet openings shrink around articles to secure units without direct contact, resolving damage risks and removal difficulties in packaging.

Controlled rubber particle characteristics integrate oil resistance into the matrix, resolving trade-offs with folding endurance and tear strength.

A flexible pouch uses a solvent-free polyurethane adhesive to bond laminate layers while preventing alcohol migration.

Controlled surface texture and resin density balance heat seal strength against opening resistance.

Amino-functional silanes resolve the contradiction between gas barrier integrity and substrate adhesiveness under high humidity.

Packaging paper combines cationic starch with controlled calendering to resolve the trade-off between high tear resistance and printability.

Distributing fine particles and absorbed wax on a resin layer creates a hydrophobic surface without organic solvents, reducing environmental load.

Sub-100 nm roughness and 60° water contact angle on thermoplastic resin prevent viscous content adhesion without complex coating processes.

Multi-ply paperboard uses unbleached hardwood chemical pulp in the back ply to achieve high Scott Bond values while reducing reliance on scarce softwood fibers.

Porous sand walls dissolve instantly in water, eliminating humidity degradation and long dissolution times.

A composite packaging material with a nanostructured layer amplifies spectral signals to enable non-destructive food quality detection.

Vegetable oil encapsulated in polymer provides fat resistance while maintaining recyclability.

A water soluble pouch uses interlocking convex and concave chamber sections to enhance bending stiffness without adding material.

Air catches and a sock create aerodynamic drag to boost muscle strength, eliminating the need for heavy separate training devices.

Plasma activation improves adhesion between the reactive polyurethane hotmelt glue and textile material, preventing seam bursting during boiling.

A gas barrier laminate uses a plastic substrate containing magnesium oxide and a polycarboxylic acid layer to achieve high humidity resistance.

A multilayer film uses low-density ethylene alpha olefin copolymer layers to create lightweight packaging for malodorous waste.

Patterned adhesive air pockets in biodegradable layers retain heat while flood coatings prevent sogginess and grease stains.

Seaweed-based edible films replace synthetic packaging to prevent lipid oxidation and water loss in frozen fish, eliminating environmental pollution.

Iron and alkali additives decrease EVOH melt viscosity during processing, preventing contamination from resin stagnation in complex forming apparatuses.

A propylene film structure with a dual-polymer heat-seal layer initiates sealing at 130°C or lower.

A peelable package uses dual sealant layers with specific contaminants to form a bond that balances burst strength and easy opening.

Impregnating polylactic acid with supercritical carbon dioxide improves resin flowability to fill narrow cavities uniformly.

A thermoplastic elastomeric stopper incorporates dispersed activated carbon particles to provide effective gas and substance filtration.

Segmented can bottoms with removable elements and aerosol release agents enable complete wet feed removal while maintaining sealed shelf life.