Publish Time: 2022-05-25 Origin: Site
With the UV coating process, the cost of UV paint needs to be taken into consideration . UV painting of different products, whether primer or topcoat, requires several coats to achieve the desired effect. Because of the different uses, for example, some products only need a layer of glue for protection and may be completed in one time coating ; some products may be painted less often to control paint costs because of the price reason.
Although UV painting is known for its high painting efficiency and environmental protection, there is no one-time painting to produce a finished product, so reasonable matching of UV painting equipment is very important . By controlling the thickness of the paint film with different UV coating equipment, you can effectively control the cost while achieving the ideal coating effect.
Among the commonly used UV coating equipment, UV roller coating machines and UV curtain machines are the most widely used. Among them, roller coating is suitable for UV thin coating and curtain coating is suitable for UV thick coating.
UV roller coating machine thin coating is also required to control the thickness of the paint film, you can control the thickness of the paint film through the control panel to adjust the transmission speed of the conveyor belt, the contact distance between the roller surface and the plate surface, the gap between the rubber roller and the squeeze roller, as well as the matching of the smooth and reverse rollers. If it is not possible to measure the thickness of the paint film, you can control to ensure that the coating volume of the roller coating is within 30 to 60 grams per square metre.
The thickness of the paint film needs to be controlled by the thick coating of the UV curtain coating machine . The thickness of the UV curtain coater can be effectively controlled by reducing the slit of the curtain coater, speeding up the conveyor belt and reducing the speed of the pain