Bags TRIZ Cases

A vertical bag-making machine forms uniform pleats and heat-welds spout portions on film packaging bags.

Adhesive strip and extended ear enable one-handed bag closure for users with limited dexterity.

An inflatable packaging device uses an uninflated thermoplastic lining to absorb shock and prevent rupture from pointed products.

Segmenting a single bag into multiple bonded compartments reduces plastic waste volume while maintaining ease of operation for managing unpredictable pet waste.

A flexible reclosable package uses a pleated portion with an internal line of weakness to enable easy opening.

Segmenting the coating layer from extrusion preserves lauric arginate ethyl ester activity, preventing thermal degradation and extending shelf life.

Twelve posts and eight flexible joints enable the frame to transition between a stable erected state and a compact folded form for easy transport.

A collapsible fluid collection bag features a threaded inlet ring and removable strainer for efficient automotive oil drainage.

Paper patches reinforce carry out bag handles, reducing ripping and waste by distributing stress at the attachment point.

Vertical pockets secure individual lenses within a job bag, preventing scratches and reducing loss during facility handling.

Heat sealing replaces mechanical sewing on woven plastic bags to create continuous end barriers.

Integrated suction cups attach a bag to cooler lids, preventing melting ice water from contacting stored items.

Opposed adhesive strips with removable covers join via a press lock mechanism to prevent air entry and preserve food freshness.

A tamper-evident bag seal uses a tear strip and vertical perforations to secure packaging panels with adhesive strips.

Segmentation and merging principles resolve the trade-off between structural strength and manufacturing complexity in food packaging design.

A tamper-proof packaging bag closure assembly uses articulated support webs with localized overthickness to enhance hinge effect and shear resistance.

A vent plug with a hydrophobic membrane integrates blood sampling and air venting functions into one device.

A handled gift box integrates rigid structural protection with portable carrying handles for secure transport.

A plastic security bag uses a high softening point cover layer to protect its thermal indicator from damage during sealing operations.

An adhesively bonded overlap with internal perforations vents air during filling while preventing moisture and gas penetration into the sack interior.

A flexible barrier sleeve with a twist-tie closure stores wet paint rollers between uses.

Welding thermoplastic ribbons seals tubular net ends, replacing metal clips to simplify recycling and lower material costs.

A squeezing mechanism grips the rigid filling tube to establish a seal, preventing leakage during high-speed filling operations.

Partial non-adhesion zones in a multilayer bag limit tear propagation and prevent air ingress to maintain tightness.

Segmented glue patterns in the longitudinal seam form ventilation channels that vent trapped air, preventing pressure buildup and reducing filling times.

An outer box with a breakable section exposes an inner flexible resealable enclosure, simplifying initial access while preserving hygiene.

Segmented drawstring connections create an external hanging loop that maintains full opening width for easy filling.