In the field of printing and packaging, the success or failure of the coating process depends largely on the quality of the substrate. If the surface of the printed matter is not pre-processed and cured thoroughly, it is easy to have bubbles, delamination or uneven gloss after coating. Hongqiang, as a post-press equipment expert with more than 20 years of experience, knows this. Our Automatic UV Oil Varnish Machine is designed to solve this core pain point, not only as a high-quality glazing equipment, but also as a key pre-process to ensure that your Automatic UV Oil Varnish Machine performs at its best and produces top quality finished products.
Why do we need UV light? What does it bring to the laminating process?
Hongqiang factory’s high quality Automatic UV Oil Varnish Machine uses UV glazing technology by coating a transparent UV varnish on the surface of the print and curing it instantly with UV light to form a strong, bright and smooth protective layer. This process brings three decisive advantages to subsequent lamination:
1. Create the perfect substrate: UV varnish can effectively fill the paper fibers and printing ink layer of tiny bumps, providing an extremely smooth surface, so that the film layer can be perfectly attached, completely eliminate bubbles.
2. Enhanced adhesion: The cured UV coating is firmly combined with the printed matter, providing a stable and consistent adhesion interface for the coating glue, significantly improving the coating fastness.
3. Improve the final effect: "glazing + coating" combination process, can produce a deeper than a single coating, more brilliant visual effects and better wear and scratch resistance, greatly improve the product grade.
Core advantages
1. Stable performance: The core structure of the durable Automatic UV Oil Varnish Machine is made of cast iron wall panels, which ensure excellent rigidity and shock absorption properties, ensuring extreme stability at high speeds. This not only extends the life of the machine, but more importantly, ensures the absolute stability of the coating and curing process, eliminates the uneven glazing caused by equipment vibration from the source, and provides a semi-finished product with constant quality for the coating.
2. Three-roll reverse coating, uniform as a mirror: We use advanced three-roll reverse coating speed head technology for water-based varnish coating. Through precise control of the roller speed difference, the light oil layer is extremely uniform and flat, which is the core of the technology to obtain mirror-like high gloss effect and perfect coating surface.
3. Independent drive, accurate metering: Metering roller driven by independent motor, can be extremely fine control of the coating amount. Whether heavy touch varnish or thin protective layer is required, it can be accurately realized to ensure the consistent effect of each product and provide uniform quality processing objects for the coating process.
4. Improved air knife to eliminate adhesion: Improved air knife technology provides uniform airflow at the moment of separation between paper and coating roller, effectively preventing paper from adhering to roller due to ink or varnish drying. This ensures continuous production of Automatic UV Oil Varnish Machine without downtime, while also avoiding surface damage caused by adhesion, ensuring that every product entering the laminating process is intact.
Why choose Hongqiang?
Flow-based efficient production: UV glazing and instant curing products can immediately enter the coating process without waiting for drying, greatly shortening the production cycle.
Solve complex process problems: for dark full-plate printing or special paper, UV glazing can effectively prevent the "white spot" or "fog" phenomenon after coating, so that the color is more saturated and the coating is more transparent.
Expand high-end application fields: This combination is the preferred process for producing high-end luxury packaging, hardcover book covers, high-end cards and other products, which can achieve visual and tactile textures that ordinary films cannot achieve.
