Adhesive Removal from Packaging Material

Packaging container with easy-to-separate lid and tray for recycling. The container has a lined tray with a weakened bond between the liner film and the tray. The tray has a gripping tab that is offset from the brim tab. This allows the lid to be easily separated from the tray during opening, as the lid's gripping tab won't adhere to the tray tab. The weakened bond prevents the liner film from sticking to the tray during separation. The lid and liner film can then be easily separated for recycling.

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Packaging form for a liquid inkjet printer head that allows easy removal of a protective cover without damaging the head. The packaging contains the head, cover, and cushioning material sealed in a depressurized bag. This prevents the cover from detaching during shipping. The cover is designed to detach easily by applying a force in a specific direction. This allows removing the cover without risk of damaging the head. The cushioning material helps secure the head and cover during transit.

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Multilayer film for packaging materials that allows easy removal of adhering contents like food residue while maintaining good heat sealability. The film has a sealing layer with a thermoplastic resin and a surfactant. Embossing the sealing layer surface to increase its specific area enhances content release. The film can be used in containers like paper cups to facilitate cleaning.

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Two-component curing adhesive for laminates that exhibits releasability when immersed in an alkaline aqueous solution while maintaining adhesion. The adhesive has an isocyanate composition containing an polyisocyanate compound and an isocyanate-reactive composition with an active hydrogen group-containing compound. The active hydrogen compound has an average functional number of hydroxyl groups of 1.5-3.0 and acid groups of 0.2-2.0. This adhesive allows easy separation of laminated materials like packaging by immersion in alkali compared to conventional adhesives.

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Cover tape for electronic component packaging and electronic parts packaging body that suppresses adhesiveness and suppresses adhesion of components. The cover tape has a base material layer and a sealing layer on one side. The sealing layer has optimized surface properties to reduce adhesiveness and component adhesion. The sealing layer has a peak apex density of 3×10³ cm-2 and a root mean square slope of 1 µm or less. These surface property values suppress adhesiveness and component adhesion.

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Cardboard food packaging with a detachable lid that provides easy handling and repeatable connection without adhesive while maintaining dimensional stability. The lid rests on an edge flange projecting outwards from the container. The container and lid each have connecting tabs and slots that engage laterally along the edge flange. This allows the lid to slide on and off without glue while preventing movement. The tabs have undercuts to secure the lid and the slots have corresponding shapes.

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Sealing a lidding film to a packaging tray without a knife by using the sealing station's heated surface to both seal and heat the transition area between the clamped and sealing areas. This creates a temperature gradient that increases towards the sealed area. When tension is applied, it separates at the warmest point where the film's strength matches the tension. By heating and stressing the transition area, it allows the lidding film to be separated without a knife.

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Sealing lidding film to a packaging tray using a sealing station with a heated frame that gradually heats the transition area between the film and tray. The lidding film is clamped between the upper and lower tool parts, then the sealing area is heated to fuse it to the tray. Tensile stress is generated in the transition area due to the temperature gradient. The film is separated at the warmest section where the stress exceeds the film strength. This allows sealing without cutting the film and works with all types of lidding films.

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A simple and foldable packaging box design that allows easy assembly and disassembly without adhesives or strings. The box has side panels that can stand upright when folded. The side panels have angled folding sections that interlock when standing. The bottom panel is thinner than the side panels. When assembled, the bottom hooks onto the inner edges of the standing side panels. This keeps the box upright without glue or strings. The hooking interlock prevents the bottom from sliding out. The angled folding sections provide stability and prevent the box from collapsing. The design allows easy loading and unloading of products without tape or glue.

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A cover tape for packaging electronic components that reduces adhesion of components during transportation. The cover tape has a sealing layer with specific surface properties to prevent component adhesion. The sealing layer has a low roughness (0.05-0.5 μm) and low peak density (3x10/cm2) on its exposed surface. These surface characteristics suppress component adhesion when the tape is peeled off during transportation.

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Heat seal sheet and sterilization package with improved peelability and reduced dust scattering during opening, particularly useful in medical settings where sterile objects are stored. The heat seal sheet has a thermoplastic adhesive layer with an antistatic agent to reduce static cling and improve peelability. The sheet also has low air permeability to prevent lint scattering. The antistatic agent is contained in an amount of 0.5-20 parts by mass relative to 100 parts of the thermoplastic resin. The sheet can be used to seal sterilization packages, with thermally sealed portions having a 180° peel strength of 0.5-15 N/15 mm when opened at 300 mm/min. This provides easy peelability without excessive force that could damage sterilized contents.

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Packaging material for shipping items that allows easy removal of personal information like sender and destination addresses to prevent identity leakage when the packaging is discarded. The packaging has a corrugated sheet with a flat sheet attached to the corrugated ridges. The flat sheet has a personal information display area surrounded by a cut-out frame. This frame allows the personal info area to be easily peeled off the flat sheet and corrugated sheet. The cut-out frame can be perforations or a partial cut that doesn't penetrate the flat sheet.

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Disposable bottle with one-touch removal of elastic wrapping band. The bottle has a lid and main body. An elastic wrapping paper is wound around the bottle between the lid and body. The wrapping paper has a perforation line. When the lid is rotated, the perforation line gets cut and the wrapping paper separates from the body. The lid and body have recessed grooves that match the width of the wrapping paper. This allows the paper to be inserted and held securely. The recessed grooves prevent protrusion when the paper is cut. This enables easy one-touch removal of the paper after opening the bottle.

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A PET bottle processing device that simultaneously separates accessories from the bottle body and cleans the bottles. The device has two rotating shafts inside a case with radial protruding blade members. The shafts rotate out of phase to peel labels, caps, and release contents. Water showers the bottles while they're being processed. The blades transport the bodies to an upper discharge and washwater carries accessories to a lower discharge. This integrated cleaning and separation reduces processing time and device size compared to separate steps.

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Reusable pizza packaging with detachable halves that can be easily handled and accessed while also allowing transportation of other foods. The packaging has two half-shells that can be connected and disconnected. Each half has an edged rim and a recessed support surface. This allows the pizza to be held securely during transit but also allows easy access to the pizza when the halves are separated. The half-shells can be made of materials like cardboard or plastic.

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Package design with a removable cover sheet that can be peeled off and stuck to the opposite side to create an enclosed storage space. The package has a soft, sealable body with a removable lid. The cover sheet has an adhesive coating on one side and an uncoated area. By peeling the cover sheet from one side and attaching it to the opposite side, it creates a sealed compartment inside the package. This allows users to store and transport items inside the package, then easily remove and dispose of the cover sheet when done.

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Automated machine to separate caps from a tray after they are fixed on bottles to seal them. The machine has a lowering device to move a plate with rods into the tray. The rods engage with the caps and push them off the tray. This allows individual caps to be separated and handled after they are sealed on bottles. The plate design and rod configuration are customized for each tray type.

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Packaging film with improved anti-blocking properties for preventing sticking and clogging of filled pouches. The film has at least one surface with a roughness in the range of 1.0 to 10 μm. This roughness is achieved by blending iron powder into the propylene-based resin layer forming that surface. The iron powder not only improves anti-blocking but also provides oxygen barrier properties. Blending iron powder into the resin layer forms a rough surface with a small friction coefficient that prevents sticking.

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Mono-material food packaging with partially peelable lids that can be efficiently recycled without compromising functionality. The packaging uses a mono-material PET receptacle and a mono-material PET lid. The seal between the lid and receptacle has a peelable region and a non-peelable region. This allows the lid to be partially peeled off while still being bonded to the receptacle. The peelable region is defined by an interference lacquer on the lid that reduces the bond strength. Alternatively, the peelable region is defined by a separate peelable coating on the lid.

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A packaging container with a sleeve that can be easily and reliably opened and separated from the container without tools. The container has a sleeve made from a flat blank with overlapping end sections. It has at least one weakening line parallel to an end section to enable separation. An additional weakening line perpendicular to the first line further improves separation behavior when radial force is applied. Recesses in the overlapping area shorten the distances to be separated.

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