What kind of uv laser 355nm is used to mark pharmaceutical products?

For the marking of medicines, medical devices and their packaging, the mainstream method has always been ink printing (inkjet or pad printing). Pills are usually stamped using gravure offset printing. For manufacturers, this printing method is chosen because of its relatively low investment cost. However, consumables (ink) costs are usually higher.

What kind of laser marking machine is used to mark pharmaceutical products? Medical products generally use UV laser marking machines. The wavelength of UV is only 355nm, and the small spot and thermal influence (negligible) make it have the effect of ultra-fine and special material marking, which is an inevitable choice for those industries that require ultra-fine processing. Ideal for marking on pharmaceutical products. RFH UV laser marking machine has incomparable advantages over traditional marking methods. The following are the disadvantages of traditional marking methods, as follows:

traditional marking method

For the marking of medicines, medical devices and their packaging, the mainstream method has always been ink printing (inkjet or pad printing). Pills are usually stamped using gravure offset printing. For manufacturers, this printing method is chosen because of its relatively low investment cost. However, consumables (ink) costs are usually higher.

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The main disadvantage of printing in medical applications is that the printed indicia are always easily removed or altered (especially if printed on paper labels). This means that after transportation, handling and storage, printed marks can become difficult to identify and easily counterfeited by those with ulterior motives. Print quality is also limited, creating problems if manufacturers want to squeeze more information, including QR codes, into a small area. For pill printing in particular, it is difficult to apply to the increasingly popular "soft gel capsules" because of the stress on the product during lithography.

Even though the inks used to print medicines and medical devices are non-toxic, the printing equipment itself is often "dirty", using airborne lubricants and solvents that can contaminate the printed product. Additionally, printing equipment is often complex and requires downtime for cleaning and maintenance.

What kind of laser marking machine is used to mark pharmaceutical products?

Laser marking typically uses CO2 or solid state lasers in infrared radiation. The marking process itself is a thermal process, where the material is heated until it whitens, carbonizes or ablates to create color contrast. Almost all plastics directly absorb the heat output of far-infrared CO2, sometimes using absorbing additives, coupled with near-infrared solid-state lasers to facilitate this process. However, heating will change the chemical structure of the HAZ material and cause some surface bumps. This provides a home for the fungus and makes it difficult to wash.

To sum up, RFH UV laser marking machine is more suitable for marking medical products than traditional marking method and ordinary laser marking machine. Ultraviolet laser marking machine is one of the types of laser marking equipment, and it is also an indispensable marking equipment in the marking industry. It can help users to mark and identify simple or complex information. indispensable part.