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What are the key benefits of laser marking on freezer bags?
Recycled materials require the search for marking and coding technologies that are both sustainable and profitable for companies. This type of recycled materials is on the rise in the food market due to environmental concerns and evolving government regulations.
Traceability is crucial in the frozen food industry to guarantee product quality and enable swift detection or recall in emergencies.
Production lines in this sector operate under low temperatures, making laser marking an ideal choice. Laser marking provides cold-resistant, permanent, and highly legible markings, ensuring visibility throughout the product's shelf life.
For this reason, more and more manufacturers are opting for this more sustainable and safer technology compared to traditional ink marking methods.
The use of Macsa's SPA2 UV laser allows permanent marking without burning or deteriorating the substrate, ensuring high definition and quality. Laser coding on polyethylene and polypropylene ensures traceability throughout the product's life without generating waste.
The colour of the substrate and the size of the elements to be marked define the power to be used and the speed to be reached. In this case, with laser marking we have achieved good contrast.
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Renowned for its outstanding impact resistance, polycarbonate stands out as a material capable of withstanding impact without easily breaking or chipping. This makes it an excellent choice for applications in optics, automotive, and even glassware.
Marking on lenses is important for providing essential information about the product's features and performance, as well as for complying with industry regulations and standards.
In this case we used a Macsa CO2 laser to mark on eyeglass lenses. Notably, the peculiarity of this marking is its invisibility to the naked eye, only becoming legible when light is applied from behind. This type of application is especially useful in scenarios where internal coding is necessary for product traceability, without the consumer being aware of the marking.
Being a non-contact process, laser marking on polycarbonate lenses ensures the material's integrity, avoiding deterioration and the generation of dust particles that would require cleaning afterwards. The reaction of the CO2 laser with polycarbonate produces high-quality, high-definition, precise markings, allowing for customisation as well as the flexibility to change the marking data.
Laser: SPA2
Market: Medical devices
Material: Polycarbonate
Product: Spectacle lens
Application Type: Marking
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Additionally, laser technology enables us to mark very thin organic material, such as pear, apple, and cucumber skin, with high-definition markings. You can mark the data that best suits your needs, such as the expiry date, batch number, text, logos, or images. This not only enhances traceability but also creates a more sustainable brand image, which is environmentally friendly and respects people's health. 
Are you looking to delve deeper into the numerous benefits and applications of laser marking technology when it comes to fruit, including its potential impact on quality control, traceability, branding, and environmental sustainability?
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The beverage market is one in which customer engagement is gaining more strength and where more and more QR codes are marked on containers, even going so far as to change the design of the label to reserve space for this marking.
In this case, we have marked QR codes with a CO2 laser on labels of different colors. The laser reaction on the paper strips the paint from the paper, generating a high-quality and legible marking. With a 100x100 lens and a minimum power of 60W, we have achieved high-resolution QR code markings (expiration dates and lot numbers), generated at the high speed required by these production lines. The background color of the label enables the viewer to easily read the QR code and marking. For this reason, there is the possibility of creating an exclusive black reserve for marking and coding.
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