Screen printing local UV glazing technology
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Partial UV glazing refers to the printing of UV varnish on a certain pattern on the original color print. After the UV varnish is finished, the glazing pattern is brighter, brighter and more solid than the surrounding printing effect. And because the silk screen ink layer is thick, it will bulge after curing, and it looks like an indentation. Screen printing UV glazing is stronger than offset UV in height, leveling and thickness, so it has been very popular among foreign merchants.
At present, silk screen partial UV glazing has solved the problem of adhesion on the film BOP or PET, PP, OPP after color printing, and can also be convex. It is scratch-resistant, folding-resistant and low-odor. This creates a large market space and can be applied to printing, packaging, books, publicity and other printing fields to achieve the finishing touch.
The cost of equipment for partial UV glazing is very low, and a small amount of production will not cause waste (the cost of each version of the production is between 50 and 150 yuan, and can be reused repeatedly). The equipment it needs is: printing, printing, UV curing. The entire equipment investment can be completed as long as tens of thousands of yuan, such as drying out the production can reduce the investment in printing equipment. The electricity consumption is about 9kw, several staff members can be, and it is easy to understand. It can be pointed at a little, and the site takes up 30 square meters. With the above hardware, you can easily have local UV glazing, UV glazing area up to 60cmX90cm wide paper, thickness up to 5cm.
If you already have hardware, it is easier to develop. You only need to choose UV varnish according to the substrate, and choose the mesh parameters according to the dilute concentration of UV varnish and the ink return of printing. According to the thickness of the customer's request, the thickness of the photoresist and the mesh density and density are selected during the printing process, generally between 350 mesh and 420 mesh.