The keywords indicate a focus on the transition from a flat flexible package to an inflated state, where maintaining structural integrity during the expansion process is critical. Solving this prevents pressure loss and ensures the package maintains its protective geometry during transit.

The keywords focus on the mechanical interface between sleeves, hoods, and trays during heat application. Solving this prevents structural failure and improper sealing during the thermal shrinking or bonding process.

Standard structural panels on polyhedron containers obstruct the consumer's view of the internal contents. Improving visibility while maintaining structural integrity enhances product marketability and consumer inspection.