BOTTLE MAKING 13 PETplanet Insider Vol. 25 No. 0/24 www.petpla.net Lasers instead of labels Today’s packaging solutions have to do more than simply convey information: They must also conserve resources, enable recycling and at the same time effectively display a brand’s message. Krones exhibited at drinktec technologies that show how these needs can be met without traditional labels. With DecoBeam, Krones offers a solution for putting content directly onto PET bottles – even 100% recycled PET. Instead of using printed labels, a laser etches all relevant information such as net fill volume, ingredients, best-before date and any design elements directly onto the PET bottles. Because no traditional labels are used, the packaging requires less material and can be completely – and more easily – recycled. The technology thus offers a sustainable solution with cost-saving potential. Another benefit is that the product inside the bottle is also more visible now that it is not obscured by a label. Providing the relevant information by laser engraving puts the focus on the product. Two tried-and-tested processes are available for this marking technology: a CO2 laser provides a white colour impression while a fibre laser gives the marking a black tint. Besides text, the system can also apply logos, graphics and other design elements. A bottle design developed specifically for laser marking further highlights the beverage maker’s brand identity. In practice, sophisticated machine engineering ensures secure and precise handling. A special housing protects operators from laser radiation, and any text can be split across multiple lasers. Servo motors rotate the containers with precision, enabling a wide range of design options. Depending on the size and complexity of the “label” content, the speed, and the type of laser technology involved, the system can also be equipped with an extraction system to ensure a safe working environment. The innovations extend to the bottle cap. With InkJet printing systems, the cap can be used as optimal added space for high-contrast QR or bar codes or for additional marketing options. www.krones.com BOTTLE MAKING
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