UV glazing oil can be widely used in off-line glazing of roll coater, clamp coater, gravure coater and flexographic coater.
High-efficiency roll coater for thick paper consists of rollers rotating in the same direction, which can be divided into various models according to different combinations of rollers and different angles of center lines between rollers. Clamping coater is suitable for 80- 120 m paper; Gravure coater and flexographic coater are mainly local coating. Gravure coater coating can make the local image bright and the coating uniform. However, the coating amount can only be adjusted by the dilution amount. As long as the depth and shape of intaglio lines are not changed, the coating amount cannot be increased or decreased. However, in flexographic coating, the edge of the image is easy to produce edge contour and lacks distinctiveness. However, it is relatively easy to adjust and modify the coating amount.
After coating with any of the above coaters, it is generally necessary to use a hot air oven or an infrared oven to volatilize the solvent and then cure it with ultraviolet rays. When the paper is coated with UV varnish, it can be printed first, and then coated with varnish when it is processed. The feed speed is generally 30-60m/min.