Contamination Removal from Packages for Purity

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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Reducing the risk of ink particles from printed packaging transferring into food products during manufacturing. The method involves curing the inner layer of the packaging material to bind ink particles that migrate from the outer printed layer. This prevents the ink particles from being released into the food product. The packaging material is formed into packages and filled with the product without a separate ink migration preventing layer. This avoids compromising efficiency and versatility compared to adding a separate layer.

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Laminate for packaging materials, containers, and articles that can improve hygiene and quality even when the recycled resin content is high. The laminate uses chemically recycled resin instead of material recycled resin. Chemically recycled resin is made by converting discarded resin into a low molecular weight form and then polymerizing it, rather than cleaning and melting used packaging materials. This reduces impurities and thermal degradation compared to material recycling. The laminate has at least 10% vol or mass of chemically recycled resin.

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Filler assembly for sterile filling of flexible pouches with flowable materials like food products. The filler has zones for preheating, sterilization, flushing, and filling. The pouch moves through these zones sequentially. The preheat zone has a preheat nozzle and vacuum to suction the pouch before sterilization. The sterilization zone has a sterilization nozzle and vacuum after sterilization. The flushing zone has a flushing nozzle and vacuum after flushing. This sequence helps prevent contamination by removing fluids from the pouch between steps. The filler also has a mechanism to move the pouch through the zones. The mechanism has two regions: helical screws to guide the pouch entry, and linear slides to move it through the zones. The nozzle assemblies have sealing rims with slots to allow fluid flow when engaged with

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Reducing outgassing of volatile organic compounds from pellicle packaging to minimize contamination of pellicles used in semiconductor lithography. The pellicle packaging has a total outgassing of 90 ppm or less when heated at 100°C for 30 minutes. The packaging has a sealant layer with thickness 40 μm or less, optionally an adhesive layer, and can contain an ethylene-vinyl alcohol copolymer in the sealant. This reduces outgassing compared to typical packaging materials. The packaging can also be used to enclose pellicle receptors for lithography tools. The pellicle itself may have a styrene-butadiene-based adhesive for original plates.

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Packer machine for making pouches containing snus or other loose products like tea or coffee. The machine has features to improve productivity and quality while collecting loose powder from the pouches. It uses actuators with adjustable pneumatic springs to precisely control the sealing pressure. This prevents pouches from inflating with air during filling. Between the longitudinal and transverse sealers, a suction device removes loose powder blown out by the compressed air feeding the pouches. This prevents dirtying of the sealing units and ensures clean pouches.

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Packaging machine that prevents defective sealing by removing foreign matter from the sealed portion. The machine has a feature to thoroughly clean the overlapped edges of the packaging material before sealing. It does this by inserting a brushing device between the bag maker and sealer that can be pushed into the overlapped edges. The brushing device has a vent hole and a suction device to draw the edges through the hole and clean them. This prevents foreign matter like product scraps from being sealed in the package.

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Product packaging assembly that prevents contamination of packaged products from ambient environments. The assembly has a filter sandwiched between a support and a surface film, with sealed perimeters. This assembly is placed over the package opening. During heating, gases vent out through the assembly while the filter blocks ambient particles from entering. This prevents contamination during processing and handling in contaminated environments.

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Packaging material with antimicrobial and low adhesion properties to reduce contamination and disease transmission through contact with the packaging surface. The packaging has a coating that combines anti-microbial behavior to deactivate contaminating microbes with low adhesion properties to prevent buildup of contamination. The coating is applied over a substrate and can be printed onto the packaging. The low adhesion properties help prevent contamination from sticking to the surface, while the anti-microbial properties deactivate any remaining contamination.

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Recycling system for transparent PET bottles that allows only pure PET resin particles to be extracted for recycling. The system is installed in common facility recycling points. It involves washing, crushing, screening, drying, and collection steps. Bottles with labels removed go through washing, then crushing to shreds. Screening removes impurities. Drying removes moisture. The pure PET particles can then be collected for recycling. This prevents contamination from adhesives and labels, making the recycled PET more valuable.

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Using voracious insect larvae from the Diptera family to biologically clean contaminated packaging materials from the food industry. The larvae consume organic particles caught on the packaging, leaving behind cleaned packaging that can be recycled. This provides an economically advantageous and sustainable alternative to chemical or physical cleaning methods. The larvae cannot eat the packaging itself, so it remains recyclable. By using the larvae to clean the packaging, it enables further recycling of waste packaging materials while converting the organic contaminants into larval biomass that can be used as feed or other purposes.

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Laminated packaging material that has a peelable layer to enable easy opening in clean environments without contaminating the contents. The laminate has two layers, one that peels off at 180 degrees angle and low peel strength, and another main layer with high peel strength. The peelable layer contains a biomass-derived resin and has a density of 0.909 g/cm. The main layer has polyolefin content of 82% or more. This configuration allows the peelable layer to be easily removed to expose a clean surface on the main layer for use in clean environments. The biomass resin in the peelable layer suppresses bulging between layers. The low peel strength prevents adhesion of contaminants.

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Automatic analyzer, cool box, and pouch to improve analysis accuracy and prevent contamination in analyzer coolers. The cool box has air circulators with agent retaining portions, like pouches filled with substances that remove components adversely affecting analyte analysis. These pouches are placed in the intake or exhaust ports of the circulators. Air drawn in or blown out by the circulators passes through the pouches, allowing contaminants to be removed by the agents. This prevents analysis inhibitors from circulating in the cooler and contaminating samples.

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A tissue packaging machine with sterilization capability to improve the hygiene of wet wipes. The machine has a sterilizing lamp positioned before the cutting stage. Paper towels roll from the feeder, pass through the lamp for sterilization, then get cut and packaged. This ensures fully sterilized wipes before packaging to prevent contamination and skin irritation. The sterilization step helps improve hygiene by killing bacteria and viruses on the wipes.

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A treatment apparatus for sterilizing packaging material by immersion during production of containers. The apparatus has a tank containing a sterilizing liquid, with an opening to introduce the liquid. A screen inside the tank protects the web from direct flow. The web is fed through the tank, immersing it in the sterilizing liquid. This prevents contamination during reel changes and machine stops that can damage the web. The apparatus can be integrated into container production machines.

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An immersion treatment apparatus for packaging material like sheets used in container production that reduces defects. The apparatus has a tank filled with sterilizing liquid and a pump to quickly fill the tank. A roller inside the tank rotates and draws the sheet into the liquid. This immersion treatment can sterilize and clean the sheet. The quick filling pressure can damage the sheet, but lower pressures would extend fill time. The roller and sheet contact prevent damage. The tank bottom has a screen to prevent debris from entering the roller. This reduces container defects caused by sheet issues generated during sterilization due to high filling pressures.

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Composite paper for packaging applications made from cellulose fibers and mineral particles derived from purified phosphate mining waste. The paper aims to repurpose phosphate washing sludge as a sustainable alternative raw material in packaging. The sludge undergoes chemical treatment to remove toxic metals. The treated sludge particles are mixed with cellulose fibers to make composite paper. The composite paper has improved thermal and fire resistance compared to cellulose-only paper. It can be further coated with thermoplastic materials for enhanced water resistance.

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Filler assembly for sterilely filling pouches with aseptic fill materials like food products. The filler has separate zones for preheating, sterilization, and flushing the pouches. It uses vacuum steps before attaching the fill nozzles to remove air from the pouches. The nozzles have seals that engage the pouch spouts. The assembly has a pouch movement mechanism with opposing screws and channels to move the pouches through the zones. This helps prevent contamination by preventing air ingress during filling. The separate preheat, sterilization, and flush steps further minimize the need for preservatives in the fill material.

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A method to separate and recycle materials from medicine blister packaging in a sustainable way. The method involves treating the blister packaging with a solvent like acetone to induce swelling and delamination of the plastic layers. The solvent is then filtered for recovery and the dried polymers like PVC, PET, and EVA are segregated and collected for recycling. The solvent vapors produced during drying are condensed using a water-based condenser to recover the solvent without releasing it into the environment.

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Machine and method for sterile packaging of products like food or pharmaceuticals using flexible containers. The method involves sterilizing the inner surfaces of the container before sealing it. This prevents contamination when defects occur in the sealing process. Preliminary sterilization is done near the sealing area using a vaporized sterilant. The sterilant condenses on the sealing surfaces. When the sealing occurs, heat vaporizes the sterilant again. This ensures the sealing area is sterile. The machine has dedicated sterilization ducts near the sealing area. The sterilant is delivered continuously as the container advances. It condenses on the sealing surfaces then vaporizes during sealing. This provides complete sterilization even if sealing is imperfect.

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