As an advanced non-contact processing method, laser marking technology plays an extremely important role in the plastic industry. It uses a high-energy-density laser beam to interact with the surface of plastic materials, and achieves high-precision and permanent marking effects without damaging the material itself, meeting the needs of plastic products in identification, traceability, decoration and other aspects.
Product identification and information labeling
In the production process of plastic products, Laser marking machines can clearly and accurately mark key information such as product model, batch, production date, expiration date, manufacturer, etc. This permanent identification will not be blurred or fall off due to environmental factors (such as moisture, friction, etc.), effectively ensuring the integrity and reliability of product information.
Brand trademark and pattern engraving
Plastic products are the carriers for many brands to display their images. Laser marking machines can engrave brand trademarks, unique patterns or decorative elements on the plastic surface with extremely high precision.
QR code and barcode marking
Laser marking machines can quickly and accurately generate high-definition, scannable QR codes and barcodes for product inventory management, logistics tracking, sales channel monitoring, and consumer interaction. At the same time, companies can also grasp the flow of products and market feedback in real time, and achieve accurate supply chain management and marketing strategy optimization.
Laser marking of plastic shells of electronic products
In the field of electronic product manufacturing, plastic shells are important components of various electronic devices, such as mobile phones, tablets, laptops, etc.
Laser marking of plastic parts of automobile interiors
There are many plastic parts in automobile interiors, such as dashboards, center consoles, door interior panels, seat adjustment buttons, etc. These parts have high requirements for identification and decoration in terms of function and aesthetics. For example, on the plastic surface of the car dashboard, laser marking technology can clearly and durably mark the scales, numbers and identification symbols of various indicator lights of dials such as speedometers, tachometers, and fuel meters.
Laser marking of plastic containers for food packaging
Laser marking machines provide a safe, environmentally friendly and efficient solution for the identification of plastic containers for food packaging. For example, on plastic beverage bottles, laser marking can clearly mark key information such as product name, net content, production date, shelf life, ingredient list, etc. The use of ultraviolet laser marking technology can form tiny and fine marks on the surface of plastic bottles without any impact on the hygienic properties of the packaging materials, avoiding the risk of chemical pollution that may be caused by traditional ink printing.
Laser marking of medical device plastic products
The medical device industry has extremely high requirements for the accuracy, clarity and durability of product identification. Disposable syringes, infusion sets, plastic surgical instrument trays and other medical device products all need to be marked on the surface with detailed information such as product specifications, batch numbers, production dates, expiration dates, manufacturers, etc., so as to facilitate rapid identification and quality traceability during medical use. And the marking process meets the sterile and environmental protection requirements of medical device production.
UV laser marking machines work better on plastics because their laser characteristics are compatible with plastics, short wavelengths bring high energy density and precise focusing, and narrow pulse width and small heat-affected zone; plastics absorb ultraviolet lasers well, and specific absorption spectra and photochemical effects are conducive to efficient marking and the realization of multiple effects. These factors give it unique advantages in the field of plastic marking.
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