Cap and Label Removal for PET Bottle Processing

Wash-off labels that can be easily removed from surfaces during washing processes, such as recycling processes. The labels have a pressure-sensitive adhesive that weakens and detaches from the surface when exposed to washing conditions like heated water. The adhesive is an acrylic formulation containing a specific wash-off additive called a grafted rosin ester. This additive improves adhesive washability at lower temperatures like 40°C for paper labels and 65-75°C for filmic labels, compared to conventional additives like rosin esters and PEG.

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Label removal device for recycling PET bottles with curved and hollow bottles. The device uses a mechanism with push rods, expansion balloon, gears, and sliding sleeves to remove labels from curved and hollow PET bottles without deforming them. It involves pushing the bottles onto an expansion balloon that inflates to grip the bottle shape. The balloon is then compressed to push the labels off. The mechanism also rotates the bottles to align them for label removal. This allows recycling of curved PET bottles without damaging them during label removal.

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Adhesive cleaning device for recycled PET bottles that removes adhesive residue from bottles after label removal. The device has a vertical seating chuck, motor, brush, detergent nozzle, water tank, and recovery box. A user places the bottle in the chuck, pushes a button, and the device rotates the bottle while cleaning it with detergent. The brush contacts the bottle sides and the nozzle sprays detergent. Water rinses the bottle. The recovered detergent goes back in the storage box.

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Integrated system for cleaning and removing labels from plastic bottles that reduces equipment, time, and cost compared to separate label removal and cleaning steps. The system has a label removing machine, bouncing separation screen, cleaning liquid separator, and buffer tank connected in sequence. The label removing machine cleans and removes labels while the screen separates labels and impurities from the main material. The cleaning liquid separator filters and recycles the water. This integrated design enables label removal and cleaning in one step with improved efficiency and resource conservation.

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A plastic bottle recycling system and method to improve efficiency of recycling PET bottles by separating the label and cap before crushing. The system has a sorting device to feed bottles, a positioning device to align them, and a crushing device. The method involves feeding bottles, sorting them to align directions, removing labels and caps, and crushing the separated bodies. This separates different plastic types and prevents contamination during recycling.

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Automatic device for removing labels from plastic bottles in an efficient and complete way. The device uses a flushing bin with conveyor belts and internal components to remove, collect, and filter off labels. The removal assembly scrapes the labels, collecting assembly catches the scraped-off labels, and filter assembly retains the labels while allowing water to drain. This allows thorough label removal from containers with varying shapes. The flushing bin design enables automated label removal for production lines.

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A PET bottle recycling machine that automates removing labels from PET bottles to make recycling more efficient. The machine has a feeding plate at the top, followed by a limiting structure with an arc-shaped slot. As bottles enter vertically, they slide down the inner ring plate into the arc-shaped slot. The arc guides the bottles to prevent them from tilting. A hydraulic pump extends a telescopic rod to push the bottles downward. At the bottom, a fitting plate squeezes the bottle bodies to lower them. A cutter head removes the labels as the bottles move. A triangular block collects the labels. The arc-shaped drawer slides out to collect the cut labels. A rotating cover prevents labels from escaping when the drawer is pulled out.

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Device to efficiently remove labels from used plastic bottles prior to recycling. The device has a workbench, a clamping assembly to hold and rotate the bottle, and a friction assembly with alcohol-soaked sponges against the bottle body. As the bottle rotates, the friction sponges scrub off the labels, including those with adhesive, to leave a clean bottle surface for recycling. The clamping assembly secures the bottle while rotating it.

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Efficiently recycling labels from plastic containers by separating the ink and drying the base material in multiple crushing and washing steps. The label is first crushed into larger pieces, then treated with an alkali solution to separate the ink and base material. The base pieces are further crushed into smaller sizes, then dried. This allows efficient ink separation and drying compared to crushing the label directly.

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Automated plastic bottle recycling machine that separates bottle caps, bodies, and labels without manual intervention. The machine has a twisting mechanism driven by a transmission that separates the bottle parts. It clamps the bottle, twists it to separate the label, then cuts it off. This automates the separation process compared to manual labor. The transmission mechanism drives the twisting mechanisms to twist the bottle body in opposite directions to separate the label. A cutting mechanism removes the label once it's separated.

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Automated recycling machine that separates components from PET bottles and makes them ready for recycling. The machine uses sensors, cameras, and processors to check if bottles are PET and the right color. If not, it drops them back for return. The machine then cuts the neck to separate the bottle from cap and ring. It softens labels to remove them. The separated components go to containers. The machine can also dissolve label adhesive. It has a touchscreen, RFID reader, lighting, and wheels for user interaction, deposit loading, and mobility.

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Automated removal of the caps, rings and labels on PET (Polyethylene Terephthalate) bottles, separated them into their components and makes them ready for recycling. The removal includes using a rotating brush, which cuts the caps and the ring in three parts, a label remover, which removes the label from the bottle by acting on the signal received from the processor, and a recycling machine.

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Recycling PET bottles that can be recycled in the natural environment, are easy to use, and can be recycled in a variety of forms, including PET plastic, plastic fragments with different sizes, PET label paper and PET plastic label pieces. The recycling includes sorting the recovered PET bottles to remove impurities which are not made of PET materials; crushing the sorted PET bottles into PET plastic fragments with different sizes by a wet crusher; removing bottle caps from the PET plastic chips; adding a detergent into the PET plastic chips with the bottle caps removed for cleaning, adding caustic soda flakes, heating for cleaning, and washing the PET plastic chips clean with water; and dehydrating, drying, extruding and granulating the washed PET plastic chips.

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PET bottle recycling device that automates the pre-processing steps of removing caps and labels from PET bottles for recycling. The device uses robotic mechanisms to clamp the bottle, separate the cap, remove the label, and compress the bottle body. It has a clamping claw, screw cap remover, de-labeling mechanism, and compression mechanism. The robotic actions are coordinated using motors, gears, and sensors to efficiently and reliably prepare PET bottles for recycling.

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Device for efficiently and stably removing attachments like labels from materials to improve yield and reduce waste. The device has a frame, driving mechanism, moving mechanism, and clamping jaw assembly. The driving mechanism moves the frame with conveyor belt, allowing the clamping jaws to grip and rotate the attachment off the material. The conveyor belt drives the frame, connected to the jaws, to tear off the attachment. This provides stable and repeatable removal compared to manual peeling.

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Portable device for removing labels from discarded bottles without residue or additional power. It has a rotating mechanism with a wire wheel, friction belt, and pulleys to grip and peel off labels. A piston with a telescopic rod extends to apply pressure. Water spray cleans the bottle. The device is compact, self-contained, and easy to use.

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An automated label removal system for plastic bottles that allows efficient recycling of used bottles without manual label removal. The system uses a series of devices to soak, scrape, and unload the bottles after label removal. The process involves moving the bottles through steps where they are fixed, soaked, scraped, and unloaded. This allows automated label removal without human intervention. The soaking step softens the labels, making them easier to scrape off. The scraping device removes the softened labels. The unloading step removes the bottles from the system.

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Automated device for removing labels and cleaning plastic bottles prior to recycling. The device uses a mechanism with clamps, heating, compression, and rotation to peel off labels. The device clamps the bottle, heats it, compresses a piston, and rotates the bottle to scrape off labels as they peel due to heat expansion.

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Recycling device for efficiently emptying and processing waste plastic bottles like mineral water bottles to enable automated recycling of plastic bottles with remaining water. The device has features like a conveyor belt to move bottles, a stripping mechanism to remove caps, a lid opening mechanism to access the bottle contents, and a water dumping section to empty the bottles. This allows automated processing of wet bottles without manual draining. The device also has a collection box for the emptied water and a separate box for the raw materials.

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A waste plastic bottle recycling system that efficiently processes contaminated plastic bottles for recycling. The system has a machine with a feeding slot, a conveyor, cutting mechanism, and cleaning components. When a bottle is inserted, sensors trigger the machine to clamp, cut, and clean the bottle. The conveyor moves the bottle through stages to separate cap, cut body, and extract impurities. It uses motors, gears, slides, and electromagnets to automate the process. The system can efficiently recycle plastic bottles with impurities by cutting, cleaning, and separating caps.

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A method to easily remove adhesive labels from surfaces like bottles that have been washed using alkaline solutions at elevated temperatures. The labels have an adhesive layer made of acrylic-based adhesive. After washing, the labels are further treated by adding a crosslinking agent to the washing solution. This causes the adhesive to detackify and become non-sticky. The label can then be easily removed without leaving tacky residue.

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Recycling process for PET plastic bottles that reduces damage to the bottles during recycling. The process involves separating the label paper from the bottle, peeling off the cap, and shrinking the bottle size. A device inside the recycling machine separates the label paper using a rotating blade. Another device clamps the cap and peels it off. A hot air blower inside the machine shrinks the bottle size. This allows the bottles to be compacted and discharged without getting caught in the machinery.

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A method for removing labels from recyclable items like plastic containers to enable efficient recycling. The labels have discrete adhesive areas spaced at least 0.5 mm apart. Washing with water or a basic solution for less than 2 hours removes the labels without prolonged washing needed for continuous adhesive films. This is achieved by the discrete adhesive areas providing isolated sections that detach more easily compared to continuous adhesive layers.

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Quick removal device for self-adhesive labels from cylindrical products like bottles that improves efficiency compared to manually peeling labels. The device uses a conveyor with flexible pads and a rotating mechanism to grip the product and remove the labels. The conveyor has a rotating rack with spokes that engages the label crawler. The spokes have pads on each end that contact the product for cushioning and stability. A servo cylinder on the bottom of the rack pulls the product. This allows the device to grip and roll cylindrical products while removing labels. The flexible pads protect the product and prevent damage. The rotating mechanism provides a smooth motion to remove the labels without snagging.

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Device to easily remove labels from PET bottles for recycling. It has a housing with inlet and outlet, transfer pipes inside, heater to heat the pipes, and rollers below the outlet to compress and feed the bottle through. The hot pipes soften the adhesive on the label allowing it to separate from the bottle body when pressed by the rollers. This prevents label ink from contaminating the recycled PET.

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A stripping machine for recycling PET plastic bottles that uses warm water to soften the label adhesive before peeling. The machine has a feed hopper with a sprinkler head to spray warm water into the hopper and rinse the bottles. This softens the label adhesive before peeling. The machine also has a drainage system with baffles and a deflector to guide the wastewater flow. This prevents accumulation and allows easy cleaning. The machine also has a drying bin with a fan and heating wire to air dry the bottles before further processing.

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Method to remove labels from recyclable plastic containers like PET bottles without damaging the containers or the labels. The method involves heating the containers with the stuck labels to release the labels. This is done by warming the containers to a temperature that causes the biaxial orientation of the container material to relax, which in turn applies shrinkage forces that release the labels from the container surface. This allows the labels to be easily removed and the containers to be recycled without damaging them. The heating temperature required to relax the biaxial orientation may be in the range of 50-80°C.

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Compact and space-saving label removing device for efficiently stripping labels from objects like plastic bottles. The device has a vertically oriented container with a rotary label removal mechanism inside. The labels are fastened to the objects and slide as they pass through the rotating blades. This vertical orientation allows a more compact and space-saving design compared to horizontal label removal devices. The blades are arranged helically around the rotor axis for efficient label removal.

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Label stripper for recycling mineral water bottles that completely separates the label from the bottle body after soaking and dissolving and removing the residual adhesive on the bottle body. The stripper is made from a specific composition of ingredients like melamine, activated carbon, starch, glycine, palm oil, tea seed powder, cocoon, seaweed gum, soda ash, and octyldodecanol. The stripper is immersed in the recycled mineral water bottle to remove the label, glue, dust, and grease, and can be easily washed off. The stripper is non-toxic, harmless, and doesn't affect the regenerated plastic. It reduces environmental pollution compared to traditional blade cutting.

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Recycling method for used plastic bottles that involves a combination of mechanical and chemical processes to efficiently separate and clean the bottle components. The steps include: 1. Feeding the bottles into a machine that compresses and cuts the bottles to separate the cap and body. 2. Sorting the caps and bodies using an air classifier that separates based on density differences. 3. Cleaning the separated components using a chemical solution to dissolve any label adhesive. 4. Drying the cleaned components to prepare them for reuse in new plastic products.

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Improving recyclability of plastic packaging by using adhesive compositions and surface coatings that can be easily removed during recycling processes. The compositions are designed to facilitate separating labels and coatings from the plastic during washing and reprocessing steps. This allows cleaner recycled plastic without residual adhesive or coating contaminants. The adhesive compositions contain specific monomers like alkyl acrylates, vinyl esters, and diesters that can be easily dissolved in alkaline solutions. The coatings are made with papers, olefins, polystyrenes, or PET that can be removed with alkaline washing. The compositions have glass transition temperatures below -30°C and gel contents around 50-70%.

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A system to efficiently remove self-adhesive labels from bottles before cleaning them in a bottle washing machine. The system involves a pre-treatment step where the bottles are passed through a device that removes a majority of the labels. This prevents labels from getting caught in the washing machine and reduces label residue on the bottles. The pre-treatment device uses techniques like high-pressure water jets and heating to loosen and peel off the labels.

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Cleaning compositions and methods to remove labels from surfaces like reusable bottles using less concentrated alkaline solutions and lower temperatures compared to conventional methods. The compositions contain solvents like amines or organic solvents, chelating agents, surfactants, and catalysts like silver or vanadium sources. The solvents replace part of the alkali and effectively remove labels at lower pH and temperatures. The compositions can be used to completely remove adhesives like paper labels and residues without damaging the labels or forming pulp.

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Cleaning device and method for containers, like beverage bottles, that can more effectively remove labels and debris during the cleaning process. The device has separate zones for main and post-treatment. In the post-treatment zone, a flooding device removes labels and debris from the containers. This is done by flushing labels and debris out through a grille below the flooding device. The grille is positioned to direct the flooding water flow towards the container grille, allowing labels and debris to be flushed out and caught below. This prevents labels from getting stuck in the post-treatment zone and ensures complete removal.

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Apparatus and method for dry-removing labels from plastic containers like PET bottles without damaging the containers or losing valuable plastic. The apparatus has a stationary stator and a rotating rotor with tools inside. The container is inserted into the rotor and rotated while tools scrape the label off the sides. The rotor also applies counter-thrust to slow down the container and prevent premature exit. This prevents container deformation and damage. The tools are configured to optimize label removal based on container geometry.

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A method for efficiently removing non-adhesive waste labels from recycled bottles without damaging the bottles. The method involves using a conveyor with protrusions to transport the bottles. The label is first scored with a sharp object to weaken it. Then, a friction tool removes the label by tearing it off the bottle surface. The label is pulled away as the bottle moves on the conveyor. The scoring and friction steps are repeated if needed to fully remove the label.

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A method to clean plastic bottles by separating the label and recycling the bottle. The method uses a specialized stripping device with an adsorbent block, air passages, evacuation means, guide plates, springs, blades, and a contact plate. The device separates the label from the bottle by creating a vacuum to adsorb the bottle, heating the air inside to raise the label temperature, then pushing the guide plate down with expanded blocks to press the blades together and separate the label.

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A label release agent for recycling plastic beverage bottles that helps prevent adhesion of labels to the bottles during the recycling process. The label release agent is applied to the bottle surface to break the bond between the label adhesive and the bottle. This prevents label residue from sticking to the bottle during label removal, reducing the likelihood of the bottles sticking together during subsequent processing steps. The release agent is made from specific raw materials, including a water-soluble polymer and a surfactant, that provide label detachment without harming the bottle or the label itself.

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Removing fixed labels from recyclable articles like bottles using an optimized cleaning composition containing a specific amount of organic solvent. The composition is used to clean labeled articles like recyclable bottles to more effectively remove the labels and adhesive residue during recycling processes. The composition contains an alkaline solution with a small amount of a water-miscible organic solvent like ethyl acetate, acetonitrile, or N-methyl-2-pyrrolidone. The solvent enhances label removal compared to just the alkaline solution alone. The composition is used in cleaning tanks and mechanical scrubbing stations to wash and remove labels from recyclable articles.

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System for efficiently removing self-adhesive labels from reusable containers like bottles to enable recycling and reuse without needing harsh chemicals or long immersion times. The system uses a motorized brush roller opposite the label profile, container clamping, and controlled container motion to scrub the label off. The brush roller rotates while the container is moved in a direction perpendicular or parallel to the roller's rotation, depending on container shape. This applies pressure and friction to remove the label. The brush roller can also move longitudinally for shorter labels. A lubricant is sprayed during brushing. The clamping and motion control can be automated.

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A label removal device for recycling containers that removes labels from recycled containers without damaging the container body. The device has an inner rotating blade and an outer cylinder with projections. The container is fed between the blade and projections as it rotates. The blade removes the label while the projections prevent jamming. The blade and projections can be replaced for wear or size adjustment. The compact design reduces friction and impact compared to long passages.

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Cleaning device for beverage containers like returnable bottles in filling plants that improves label removal during cleaning. The device has separate treatment areas for main cleaning and post-cleaning. In the post-cleaning area, a flushing device removes labels and residues from the containers, baskets, or pockets. This prevents labels being carried into later stages where they can cause issues. A grid below the flushing device catches the flushed labels.

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A PET bottle processing machine and vehicle that can easily peel off labels from PET bottles. The machine has a label peeling portion with a cutting member to cut the label off the bottle and a heating member to thermally deform the cut label. This allows the label to be lifted from the bottle even if it sticks due to static electricity. A rotating brush removes the labeled section. The brush bristles are spirally arranged to better grip and peel off the label. The machine also has an urging member to push the cutting blade forward to slice the label without cutting the bottle.

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A label removal process for recycling and reusing containers without washing residue. The process involves exposing the label to heat, hot gas, or hot liquid until it detaches without shrinking, without using any caustic solution. This allows cleaner recycling and reuse of containers by removing the label without polluting the material or washing liquid.

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A machine for removing labels from plastic bottles without damaging the bottle. The machine uses two sets of rollers and chains to grip and cut off the labels. The first set of rollers feeds the bottle through and the second set of rollers removes the labels. A fast chain group pulls the bottle and a slower chain group pulls the labels off. Air blowers help separate the label from the bottle. The design allows efficient label removal without damaging the bottle body.

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A method and apparatus for pre-cleaning plastic parts like bottles before recycling to remove foreign bodies like labels and contaminants. The method involves subjecting the plastic parts to mechanical stress inside a chamber. This friction releases impurities stuck to the parts. Separation mechanisms within the chamber then separate the foreign bodies from the parts. The foreign bodies are discharged separately. This allows efficient removal of labels, dirt, etc. from recycled plastic without excessive washing. The apparatus has a housing with a chamber for the parts, stressing mechanisms, separation means, and separate discharge paths for the parts and foreign bodies inside the chamber.

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