Compression Molding for High-Strength Packaging

A device and method for producing reliable can lids with improved joint strength and reduced defects. The device has two pressing tools that apply force to join the metal lid element and polymer components. During pressing, an alternating electromagnetic field is applied using an inductor in the press area. This stabilizes the temperature and prevents warping or deformation of the materials during pressing. One tool can have a channel for a temperature maintenance fluid to further stabilize its temperature. This prevents defects like misalignment, gaps, or incomplete seals that can occur during fast pressing.

Source

Packaging Cannabis in pre-measured doses without requiring users to portion themselves. The method involves compressing the Cannabis mixture into rounded capsule molds and sealing it inside. This allows consistent dosage without estimation or weighing. The rounded mold shape ensures the pucks fit into smoking devices. The compression and sealing are done in one step to avoid handling and reduce manufacturing costs compared to separate molds and packaging.

Source

Eco-friendly food packaging container made of paper coated with synthetic resin that can be sealed using thermoplastic film. The container has a square base, vertical walls, and an outward flange on the top. The base is inserted into a mold, sides rolled up to form a cylinder, then the bottom is bent inward, pressed, and heated to form a heel. The upper circumference is rolled outward to create a curling portion. The curled portion is pressed to form the flange. The container is loaded after removal.

Source

Automated blister packaging system that allows processes like molding, sealing, cutting, and punching to proceed by moving the product appropriately. The system uses sensors to detect eye marks on the molded film and corrects the position of the forming, sealing, cutting, and punching devices based on the eye mark locations. This ensures accurate positioning of the devices to minimize defects and improve productivity when manufacturing blister packaging units.

Source

A packaging machine that prevents color development on a thermosensitive layer of packaging material when sealing the container. The machine forms containers by pressing the packaging material between heated and receiving members. The thermosensitive coloring layer is farther from the heating member than the substrate. This prevents the layer from heating and developing color during sealing. The sealing layer melts at a temperature that matches or exceeds the thermosensitive layer's color development temperature. The printing section has a thermal head closer to the thermosensitive layer to avoid heating it during printing.

Source

Resin composition for packaging applications that has improved thermal stability compared to existing compositions containing ethylene-vinyl alcohol copolymer (EVOH) and polypropylene. The composition contains EVOH and a polypropylene resin containing carbon 14. The carbon 14 polypropylene provides better thermal stability compared to conventional polypropylene resins. The composition can be used in molded articles, sheets, films, bottles, tubes, containers, and multilayer structures with improved thermal properties.

Source

A method to form a bubble valve for sealing and dispensing fluids from flexible packages. The method involves using two aligned formable films, like thermoformed sheets, where one is placed on top of the other. Channels are sealed between them to create a pathway. Then both films are thermoformed into pockets simultaneously. Finally, a separate film is sealed over the bottom of the pockets to trap air and form the bubble valve. This allows precise alignment and registration of the pockets compared to forming them separately.

Source

Biodegradable, compostable, sealable, thermoformable packaging made from a paper substrate coated with a biodegradable resin derived from vegetable sources like castor oil and palm oil. The coating process involves applying the resin to one side of the paper and scraping off excess to create a coated material. The coated paper is then thermoformed into trays at elevated temperatures. The packaging is compostable, recyclable, and can withstand cooking oven temperatures due to the vegetable resin.

Source

Laminate sheet for food packaging with improved moldability and processability. The laminate sheet contains a high percentage of inorganic powder, like calcium carbonate, in the inner layer. The powder particle size distribution is critical to avoid variations in moldability during mass production. The particle size range is 0.9-2.9 μm (D10), 2.2-4.2 μm (D20), 3.6-5.6 μm (D30), 5.0-7.0 μm (D40), and 6.4-8.4 μm (D50). The inner layer contains more powder than the outer layers. This composition provides stable moldability and processability of the laminate sheet and resulting food packaging containers, even with high filler content.

Source

Laminated metal sheet for packaging applications with improved adhesion and barrier properties compared to conventional methods. The laminated metal sheet has a predominantly uniaxially oriented laminate layer with an adhesion layer containing a specific copolyester and a bulk layer of poly(ethylene terephthalate). The laminate layer is preheated before application to provide initial adhesion, then post-heated without melting the bulk layer. This produces a specific Euclidean distance matrix between ATR FTIR spectra. The uniaxial orientation reduces deformation during forming. The specific copolyester in the adhesion layer improves adhesion to the metal. The post-heating prevents crazing and delamination during forming and opening.

Source

A sustainable packaging method that replaces plastic bubble wrap with paper-based packaging articles that have similar cushioning properties. The method involves continuously supplying Kraft paper with a minimum machine direction stretch of 5% at temperatures between 10-40°C. The paper is plastically deformed to form a structured layer with embossments or flutes. This layer is then joined with a flat cover layer to create a compound layer that forms the packaging article. The paper-based packaging has a similar cushioning effect as bubble wrap but without requiring high temperatures or moisture for deformation. The packaging can be formed into envelopes, boxes, etc.

Source

Laminated packaging material for producing individual packaging containers like cartons for liquid foods that allows easy attachment of resealable opening devices like push-tabs. The material has pre-punched holes that extend through the entire thickness. The holes are positioned by determining desired locations before punching. This allows injection molding of opening devices directly onto the material without issues like polymer hardening or avoidance between layers. The holes are sized consistently for consistent opening force.

Source

Eco-friendly packaging composition made from fried food waste, biomass, and a solvent. The composition can be molded into 3D structures and used as a sustainable packaging alternative. The fried food waste provides a binding agent, the biomass adds strength, and the solvent helps mix it all together. The composition is derived from fried food scraps, like oil-rich crumbs, and uses biodegradable materials to reduce environmental impact compared to traditional petroleum-based plastics.

Source

Thermoforming packaging machine and method for deforming packaging material that provides reliable deformation with high quality packaging while avoiding damage or tearing. The machine has a stamp that oscillates slightly during movement in the receptacle. The oscillation has a smaller amplitude than the stamp's travel distance and a higher frequency than the movement time. This counter-movement briefly separates the stamp from the material. A control unit adjusts oscillation based on measured material temperature.

Source

Thermoforming packaging machine with improved quality deep-drawing of packaging material. The machine has a stamp with compressed air openings that direct air towards the material during deformation. This prevents direct stamp contact and creates an air cushion. A control system monitors stamp pressure and adjusts stamp movement and compressed air flow to maintain consistent deformation conditions.

Source

Thermoforming packaging machine that automatically adjusts processing parameters to maintain consistent packaging quality even as material properties change. The machine has sensors to measure characteristics like thickness during/after deformation. A control unit sets operating parameters for future deformations based on measured values and target values. If a measured value deviates too much, it changes the parameter. This allows the machine to compensate for variations in starting material or environment without operator intervention.

Source

Spouts and packaging containers with improved welding properties for mono-material bags made of low-melting point resins like polyethylene. The spout has a mounting part that attaches to the bag and a protruding pouring part. The mounting part has multiple parallel ribs on its outer surface. These ribs have a width of at least 1 mm. The ribs are spaced apart. The ribbed outer surface of the mounting part helps concentrate heat and pressure during welding to initiate melting there first. This prevents packaging material from melting before the spout seals. The ribs can be formed from a polyethylene-based resin like the bag material.

Source

Laminate sheet, container, and food packaging with improved appearance and formability after heat treatment. The laminate sheet has four layers: inner, intermediate, first outer, and second outer. The second outer layer contains a polyester or polycarbonate resin with a high deflection temperature. This provides good formability while maintaining transparency after heat treatment. The second outer layer thickness is 0.5-8% of the total sheet. The laminate sheet can be used to make containers that retain their appearance after boiling. The containers can be filled with food for sterilization while maintaining good appearance.

Source

Compostable single-serve packaging for foods like sauces that is fully compostable and has a long shelf life. The packaging uses compostable molded trays with compostable barrier films and releasable covers made from compostable materials. The molded trays form a barrier for the food inside. A releasable adhesive joins the cover to the barrier film around the opening. This allows easy opening and resealing of the packaging. The compostable materials enable complete composting of the packaging after use.

Source

Reducing pollution and waste from packaging by using biodegradable bamboo fiber packaging instead of plastic. The bamboo fiber is derived from rapidly growing bamboo plants that absorb more carbon dioxide and produce more oxygen than traditional hardwoods. The bamboo fiber is molded into packaging shapes and coated with beeswax to make it water-resistant. This eco-friendly bamboo packaging can be used for food service items like utensils, containers, and packaging components. It is fully biodegradable and compostable, reducing pollution compared to plastic packaging.

Source