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EN 起皮、缺陷率高？您的 UV 单程印刷机可能缺少 "它"！
Search Search Home / Table of Contents Product Series UV Single Pass Printer Series Single Pass Printer Series Contact Us Share this blog Facebook Linkedin Twitter You may like Peeling, high defect rate? Your UV One-Pass printer might be missing “it”! When you invest heavily in a UV One-Pass printer, expecting perfect high-speed printing on glass, metal, or plastic, do you often encounter these problems: the pattern looks beautiful, but it scratches off easily? Are there always tiny pinholes and shrinkage on the surface? Does the high defect rate drastically increase production costs? These problems might lead you to repeatedly adjust the print heads, change ink brands, or even doubt the equipment quality, but the real root cause is often overlooked at the beginning of the production line. The core problem: the inherent contradiction between speed and adhesion The design philosophy of UV One-Pass printers is ultimate efficiency – materials pass through quickly, the print head completes printing in one pass, and the UV lamp instantly cures the ink. But this “blitzkrieg” printing method brings a fundamental problem: the ink has almost zero time to bond with the material; In traditional multi-pass printing, the ink has multiple opportunities for coverage and penetration, while One-Pass is “instant curing,” depriving the ink of the valuable opportunity to establish a strong connection with the material surface. Moreover, commonly used non-absorbent materials in industry (glass, metal, various plastics) inherently have “non-stick” properties: low surface energy and chemical inertness; they “reject” ink adhesion at the molecular level. The overlooked “quality gatekeeper”: Plasma surface treatment device If you are troubled by this, your production line is likely missing a crucial device – a plasma surface treatment device. This is not an optional accessory, but the “quality gatekeeper” that determines the success or failure of One-Pass printing! Why can a plasma device turn the printing results around? 1.Molecular-level deep cleaning During incoming material processing or high-speed production, the material surface inevitably carries microscopic oil stains, dust, and mold release agents. The high-energy particles in the plasma can instantly decompose these contaminants at the nanoscale, providing an absolutely clean “canvas” for printing. 2.Nanoscale surface reconstruction The plasma micro-bombards the material surface, creating microscopic rough textures invisible to the naked eye. This is equivalent to transforming smooth glass into a microscopic “climbing wall,” providing physical anchoring points for the ink and increasing adhesion several times over. 3.Chemical-level Surface Activation This is the most crucial step. Plasma treatment can implant hydrophilic polar groups (such as -OH) on the material surface, changing the material from “repellent” to “attractive.” The transformation of surface energy from low to high allows the ink to change from “being repelled” to “being actively adsorbed and spread.” Why is a plasma device indispensable in UV Single-pass printers? Perfect speed matching: Plasma treatment speed can reach hundreds of meters per minute, perfectly synchronized with One-Pass printing, without causing any production bottlenecks. Fundamental change in effect: It doesn’t just cover
