Bags TRIZ Cases

A plastic film container integrates a strap handle into the sidewall for convenient carrying.

A fluid receiving bag uses a foldable shape-retaining member in the pouring part to maintain a nearly flat profile when empty.

Semi-circular perforations allow breast pumps to connect directly to a hanging milk storage bag, eliminating intermediate bottles and reducing spillage risks.

Segmented rock-filled mesh bags reduce installation complexity while stabilizing hillsides against gully formation.

A multilayer laminated film uses a cavitated heat-sealing layer to reduce weight while maintaining sealing integrity.

A recloseable zipper pouch features a movable grasping flange that transitions between hidden and opening positions to secure interlocking profiles.

Segmented web anchors closure profiles to pouch walls while leaving unattached portions flexible for easy opening.

Continuous heat resistance material prevents premature adhesion during thermal bonding, resolving manufacturing precision issues in air bag pillar formation.

Magnetic engagement between the slide and retaining members creates an air-tight seal without complex interlocking structures.

Merging tissue paper with the receptacle via preliminary action eliminates manual placement steps while maintaining effective object concealment.

Asymmetric seal geometry stabilizes high aspect ratio containers against drop impacts and tipping.

Segmented inner divider walls enable independent access to each compartment by tearing opposite ends, reducing material usage while maintaining seal integrity.

Flow path control seal portions with specific action points enable precise pouring force adjustment, preventing film adhesion that hinders liquid resumption.

A flexible pouch uses a peelable outer layer to dispense contents through a dedicated outlet zone.

A filling device uses a movable end element to define a flow passage for rapid product supply.

Integrally formed tabs support collapsible liners to prevent vacuum collapse and ensure complete discharge of viscous contents.

Detachable supporting bars allow the soft walled body to fold flat, resolving the trade-off between structural strength and compact storage space.

A plastic food portion bag uses a tacky flap to create an air-tight seal against the main panel.

Segmented reclosure strip allows automatic filling systems to open bags at low temperatures while maintaining secure closure during transport.

A bag closing device uses protrusions and a drawstring to secure flexible material without tying knots.

Elastic bars bow outward when separating force is applied, then straighten to bring lips adjacent and close the mouth without manual intervention.

A pouch container uses a locking band and lock part to secure the main-body sheets in a folded state.

Replacing solid HIPS with foamed APET resolves tensile strength and cost contradictions, enabling reliable machine processing.

A resealable closure mechanism uses interlocking members and sealing ribs to form an airtight seal within thermoplastic pouches.

A flexible shoe package uses a removable stiffening insert to maintain structural integrity for stacking.

Flexible containers use thin film laminates to reduce production costs while maintaining structural integrity.

An inside-out manufacturing method forms elastomer containers with integrated leak-resistant seals on the external surface before inversion.

A safeguard zipper bag uses dual opening parts to disperse force, preventing accidental child access while maintaining adult usability.

Integrated pump and check valves create a vacuum inside the storage bag to eliminate air gaps.

Inner seals reduce the upper opening width of an elastic drawstring trash bag, preventing dislodgement when stretched over larger rims.

An integrally formed handle pleat eliminates separate attachment steps, reducing manufacturing complexity and preventing wrinkling during shipping.

Tiered flexible wall sections with living hinges resolve the contradiction between compact collapsed volume and structural rigidity in empty luggage.

A mesh produce container uses a shaped band to form an integrated handgrip for safe transport.

Concentric filling device in stackable valve bag maintains uniform thickness for stable horizontal stacking.

Segmented support webs rotate via intermediary extension elements to protect closing profiles from stress during repeated opening cycles.

A gusseted resealable bag incorporates a one-way purge valve to evacuate air from the interior volume.

A trash receptacle liner uses a rigid top-lip and zip tie to secure the bag, preventing leaks from flimsy standard bags.

Reduced gusseted sidewall thickness enables heat sealing of thicker main panels, accommodating larger food items while maintaining oxygen barrier performance.

Roughened polyester films and controlled hot pressing reduce warping in hair dye packaging while maintaining strong adhesion.

A two-reservoir bottle insert uses a vacuum-triggered valve to deliver rinse liquid after feeding, reducing tooth decay from prolonged cariogenic exposure.

A valve bag uses a fold-over hose end that kinks closed via material tension to seal the envelope after filling.

A handheld lift loop tester measures peel strength of heat seal bonds between patches and bulk bag bodies.

Longitudinal edge ventilation ducts with segmented sealing seams prevent overpressure and clogging in powdery packaging.

Glue extends through pouch holes to join cover elements, eliminating mechanical fixing means and reducing device complexity.

A closure strap with a round cross section inserts into a matching channel to secure tubular packages.

Nested flexible boots with honeycombed soles eliminate corridor hazards while enabling compact transport.

Segmented protruding rim with surface projections resolves handling risks and manufacturing complexity for food sachets.

A reclosable paper-plastic bag uses a segmented adhesive label permanently fixed to the paper edge and releasably attached to an inner polymeric film.

Segmenting side walls into asymmetric panels creates a narrowed middle that prevents bulging and stabilizes stacking.

Segmented tear lines allow removal of a panel section to verify seal integrity without compromising the primary closure.