Laser marking refuses to be altered to defend food safety

With the improvement of living standards, people have also paid more attention to food safety awareness, and the state's supervision of food and drug safety is also increasing. Selling shoddy and expired products again is hard to prevent. Even if we carefully check the production date and shelf life when we buy products, we cannot avoid the occurrence of stealing and changing the column. Therefore, the non-coating and modification of the production date of the product has become a major food safety issue. One of the hidden dangers.

The pace of social development is accelerating, and modern processing technology requirements are getting higher and higher, such as plastic, glass, leather, metal, crystal and other products, the traditional marking technology can not meet the requirements of modern technology, such as inkjet or sandblasting marking , with logo, date, text, pattern and other craft marking. Similar to glass and plastic, which are hard materials, it is difficult for ink to penetrate, and external factors can also cause the color to fall off, such as air acidity, moisture, friction and other conditions; , but after using it for a month, you will find that many words have been blurred. Such products can easily make consumers question the quality of the products, and will also have a negative impact on the reputation of the company. Permanent signs have become an urgent need for businesses.

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UV laser marking applications

The laser was invented in the 1960s, and its arrival promotes the progress of the times, so some people call it another major invention of "nuclear energy, computer, semiconductor". It gives more possibilities to manufacturing with powerful energy. With the rapid development of the laser industry, the application of lasers in the processing industry is gradually increasing, and it is also gradually integrated in daily life. The development of special UV marking in recent years can be said to be advancing by leaps and bounds. Through its unique processing properties, people also call it It is "cold processing" and has natural advantages for some special processing materials, such as glass, plastic, crystal, cloth, metal and so on.

The wavelength of the RFH UV laser is 355nm, with a small spot, narrow pulse width, fast light speed, and high peak value, which can achieve more precise marking effect. Ultraviolet laser marking is a chemical reaction that uses a high-energy-density laser to locally irradiate the workpiece to vaporize or change the color of the surface material, thereby leaving a permanent and indelible mark. Ultraviolet laser marking can print various characters, symbols, patterns, logos, etc., and the character size can range from millimeters to micrometers, which is of special significance to the anti-counterfeiting of products.

UV laser marking plays a positive role in environmental protection. Through non-contact marking, no raw materials are consumed in the middle, which greatly saves production costs and reduces environmental pollution. Due to the advantages of ultraviolet laser processing, many companies have invested in the research and development of ultraviolet lasers, which makes the laser industry full of vitality, and can be self-sufficient in future development, and laser processing can penetrate into all walks of life.

Through the etching process, the RFH UV laser can be used to mark plastic packaging, glass containers, glass engraving, 3C materials and other objects. As long as it is not deliberately destroyed, this kind of mark can exist for a long time. At the same time, there is no damage to the processing device. At present, UV laser marking technology has been widely used, such as soy sauce bottles, plastic bags, cans, glasses, masks, etc. at home. It has eliminated a series of alterations on packaging, strengthened food health and safety, and is also a kind of enterprise production. Good guarantee.