Since the outbreak of the epidemic, masks and frontal temperature gun has become a necessity of life at this stage. However, the huge demand gap makes some unscrupulous traders take advantage of the situation, a large number of poor quality masks into the market, with "fake masks", "mask fraud" related words repeatedly on the hot search. Fake masks not only have no protective effect, but also have the risk of being contaminated due to the substandard hygiene of the production environment, which is extremely harmful to personal health. The most direct way to identify real and fake masks is to check the laser security mark.
First of all, the pharmaceutical and medical industries attach great importance to safety and health, so the requirements in terms of product marking are very high, and information such as production date, instructions for use, etc. must be permanent, so we will choose laser marking machine to be used as a processing mark, rather than a jet printer, screen printing and other traditional methods.
Amount temperature gun, generally in the plastic shell printing LOGO, UV laser marking machine laser engraving effect without hand, the font will not be yellow due to burning, can reflect the brand's grade, and UV laser marking machine price is relatively high fiber laser marking machine, so you can reduce the chances of being imitated, to play the role of anti-counterfeiting.
For boxed 3M N95/KN95 series masks, can be identified by the anti-counterfeit label on the mask packaging box. The labels of real masks will change color when viewed from different angles, while the labels of fake masks will not change color. For the bulk 3M N95/KN95 series masks, you can identify the authenticity by looking at the font on the mask. The real 3M masks are laser marked with a slanted font, while the fakes are printed with ink and have dots (uneven ink traces).
The basic principle of laser marking is to use the high energy density of the laser beam on the surface of the material, through the focus of the surface material instantaneous vaporization or color change, and can be controlled by the path of the laser on the surface of the material, the formation of the desired permanent graphic mark. Since laser marking can produce various characters, symbols and patterns, etc., and the character size can range from millimeter to micron scale, which has special significance for product anti-counterfeiting, it has a wide application in the anti-counterfeiting market.
Before laser marking was applied on a large scale, the marks on packaging were usually printed with ink. The marks printed by this traditional method were prone to peeling and blurring over time, were easily tampered with, and could not be worked with high precision. Despite its advantages in equipment cost, the consumables (ink) have a high ongoing cost and can cause some environmental pollution.
Take the most common food packaging as an example, because the mark printed by the traditional method is easy to erase and fall off, some unscrupulous elements will print some expired or even counterfeit products with brand trademarks, or modify the production date, so that these substandard products circulate in the market. Such phenomena are common in the field of food and oil, beverages, snacks, sauces and so on. In addition, for some paper-based food packaging, harmful substances from the ink may also penetrate the packaging and contaminate the food, posing a threat to consumers' health.
The emergence of laser technology has solved a series of problems brought about by traditional ink printing. For food packaging, the use of laser marking has the advantages of non-toxic, non-pollution, high efficiency, high clarity, exquisite patterns, and never fall off. In addition, laser marking can also be combined with computer technology, by linking the database system, so that we can track and query the factory, circulation and other details of food in a timely manner, to ensure peace of mind.
And the medical industry is inseparable from the escort of laser marking. Since medical products are in direct contact with the human body and are related to the life and health of the people, the treatment of fake and anti-counterfeit medical products has become a top priority in protecting the health and safety of consumers.
The marking of medical devices and drugs has some special needs in addition to some of the characteristics mentioned earlier. For example, common pills, soft capsules, if the use of flat printing will produce pressure on the product, while non-contact laser marking will not deform the capsule, and can be marked on the tiny pills with more minute information. And on medical devices represented by stainless steel surgical and dental equipment, the laser can mark on the absolutely smooth surface, which prevents bacteria from sticking to the surface, and the marked surface will not damage the corrosion-resistant chemical passivation treatment, which can make the anti-corrosion coating remain even after years of use and countless times of cleaning and disinfection. Again, such as the 3M masks mentioned in the opening paragraph, the presence of laser markings is an important sign to distinguish authenticity.
In fact, laser marking anti-counterfeiting technology can not only be used for mask authenticity identification, but also plays a great role in packaging anti-counterfeiting and traceability in food, medicine, tobacco, beauty and electronic products, etc. It can be said that laser marking anti-counterfeiting has been integrated into every aspect of our life.
