De-metalizing Machine
Return+Kingsun de-metalizing machine is specially designed to selectively remove metallized coatings (Aluminized film) from packaging films, creating transparent windows for clear product visibility. It is widely used for flexible packaging converting, also in the security industry to eliminate laser holograms, barcodes, and other identification markers, helping prevent counterfeiting and fraud. In the food and beverage packaging sector, it allows consumers to see the product inside the packages before purchase, so can get more attraction. The machine is also suitable for electronic label applications and can chemically treat pure aluminium foil or thin aluminium with PET laminates. Some people called it is kind of aluminium partly washing machine, or aluminium chemical etching machine, de-metallization machine or de-metallization window machine etc. No matter what name you call it, it is for create some windows on the film, so can see through the metallized film. Our machine can finish the whole process in one pass from unwinding, chemical washing, cleaning, drying and rewinding, so can efficiently improve your converting.
To better meet your demetalizing production needs, please share your specific requirements - such as material type, thickness, maximum width, or customization preferences. We can also test your samples on our existing machines to accelerate your R&D process and help you move into production faster. Please contact our sales so can arrange the testing process.
Contact us today to add more value to your metallized film packaging products.
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FAQs
What is a demetalizing machine?
The demetalizing machine, also called as aluminum washing machine, it is a chemical processing system used to selectively remove the aluminum coating from metallized films (such as PET, OPP, or PVC) to create designs, patterns, or transparent windows, it is special application for high level flexible packaging, RFID or anti-counterfeit use. This process is also known as chemical de-metallization or aluminum etching.
How does the de-metallization machine works?
The machine applies a chemical solution (usually sodium hydroxide/NaOH or a proprietary alkaline etchant) through a printing or coating process. The chemical reacts with the aluminum layer, dissolving it and leaving behind a transparent area. The film is then washed, neutralized, dried, and rewound.
What are the main applications of demetalizing machine?
The demetalizing machine is special equipment designed for following usage:
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Decorative labels and stickers
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Holographic security labels
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Transparent windows in flexible packaging
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Anti-counterfeiting marks
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Electrical insulation with selective conductivity
Is the de-metalizing process environmentally friendly?
Modern machines include wastewater treatment systems to neutralize and filter chemicals before disposal. Many systems are designed to minimize chemical usage and recover water, it is option for choose. You can talk with our sales engineer the requirement.
Who are typical suppliers of aluminum washing machines?
Leading suppliers include manufacturers in China Kingsun, Italy, Germany. Kingsun specialized in customized solutions for packaging and security printing industries, demetalizing machine exported to Europe, USA and many other countries with 25 years experience.
What is the production speed of Kingsun de-metallizing machines?
Our machines operate at speeds ranging from 30 to 150 meters per minute, depending on:
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Film width and thickness
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Pattern complexity
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Chemical formulation and drying capacity
- For pure Al foil de-metalizing,it will be needed multi chemical tanks and chemical concentration, the speed will be slower and depends on the thickness of Al foil.
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De-metalizing Machine
