Wrappers TRIZ Cases

A vinyl chloride-based film composition uses a modified epoxidized vegetable oil and an aliphatic dibasic acid ester to enhance flexibility.

A white polyester film integrates a heat sealing layer with ethylene terephthalate resin to join packaging materials.

Lines of weakness on the main panel create a funnel-shaped opening that increases pouring speed without adding material volume.

A protective slider zipper integrates a bending structure and support surfaces to enable reliable closure.

A blended polyester laminating film resists high-temperature sterilization damage through a three-layer co-extrusion structure.

A multilayer gusseted bag uses a peelable lap seal interface between an outer heat sealing layer and a contaminated layer to enable tool-free opening.

A precision scored laminate wrapper uses a pressure sensitive adhesive to create an airtight seal around food items without equipment.

Angled land regions in expanded slit paper layers interlock to prevent nesting, maintaining thickness and cushioning performance.

Distributing pigments across multiple inner layers increases opacity to prevent yellowing while maintaining processability.

A multilayer film combines semi-aromatic and aliphatic polyamide resins to achieve high oxygen barrier properties.

A pouch container design places a platelessly printed layer between the base film and sealant layer to enable flexible small-lot production.

Magnetic fasteners replace complex mechanical laces to simplify securing and removal.

EVOH barrier layers block moisture diffusion through the laminate, preventing mottling and swelling in moisture-containing products.

Zinc ion crosslinking enhances oil and grease resistance in paper coatings without compromising flexibility.

A flexible package incorporates a side-edge gas injection portion to maintain structural integrity and prevent film deformation.

Block copolymerized polylactide segments linked by urethane groups resolve the trade-off between mechanical strength and flexibility in packaging films.

Foil packaging controls oxygen influx and carbon dioxide outflux rates to prevent souring in fresh chicory while preserving protein product quality.

Sorbic acid ester prevents EVOH-polyamide reactions, maintaining gas barrier properties for hot-water sterilizable packaging.

A two-stage printing process applies background layers via roller units and precise positioning through digital printers on water-soluble packaging films.

A laser-formed channel in a multilayer laminate film exhausts carbon dioxide from the package interior.

Segmented outer and inner layers resolve the contradiction between transparency and heat resistance in retort packaging films.

Scored single-sheet film forms closure flaps that fold and seal, eliminating multiple materials and adhesive strips while maintaining tamper-evident security.

Segmented biodegradable packaging resolves recyclability versus weatherproofing via coated cardboard and a rotating spout.

A laminated packaging material uses plasma-enhanced chemical vapor deposition to coat a polymer substrate with silicon oxide and diamond-like carbon layers.