Wood grain paper - Common problems in the printing process of furniture stickers:

　　1. wood grain paper furniture sticker printing appears block plate. The drawings can not be printed out, and a layer of ink can be seen in serious cases, because the ink dries too fast, so that the ink dries in the cavity; The machine is slow and can't print well.

　　Treatment method: Slow drying solvents such as propylene glycol and methanol can be added to the ink to slow down drying; Increase the machine speed appropriately.

　　2. wood grain paper furniture sticker printing appears white spots, that is to say, the print should be the point of the pattern part, there are many blank spots, you can directly see the substrate, commonly known as white spots, especially the light-colored pattern part. The main reason is that the surface of the base paper is too rough and the flatness is poor; Secondly, ink viscosity is the result of poor wettability of the substrate.

　　Treatment method: Use good flat base paper; Reduce the viscosity of the ink, add organic solvent or substrate wetting agent, increase the wettability of the ink to the base paper.

　　3. wood grain paper furniture sticker printing scratches. The ribbon appears in the non-patterned part of the printed product. Reason: The main reason is the problem of the scraper, such as the scraper is not straight, damaged; Improper pressure; The Angle of the scraper roller is not suitable, and the scraper problems caused by ink factors, such as impurities and coarse and hard particles in the ink; Ink viscosity is too high; The ink is too sticky to the plate cylinder; Ink drying too fast or too slow. It is also caused by the plate cylinder, such as poor processing of the cylinder; The pattern is too deep; Poor chrome plating material.

　　Treatment method: If it is a scraper, use a straight and sharp scraper to adjust the Angle and pressure of the scraper; Because of the ink, the ink is filtered before printing on the machine, adjusted to the appropriate viscosity, and adjusted dryness and viscosity; For roller reasons, use a smooth roller, correct the plate pattern, and re-chrome evenly if necessary.

　　4. wood grain paper furniture sticker printing appears hollow and halo; The edges of the pattern that start on both sides are called halos. Reason: The main reason is the uneven plate pressure; There are also insufficient ink concentration or too thin resulting in weakness. The plate cylinder pressure is too heavy, the ink viscosity is insufficient, so that the ink in the chamber before the impression is spilled, resulting in halo.

　　Treatment method: Adjust the plate roller pressure, adjust the ink concentration and viscosity, and improve the drying speed.

　　Liu Ankang strong Decorative Materials Co., Ltd. specializes in the production of melamine paper, wood grain paper welcome to the factory inspection