FAQ

The ink scraper may encounter various problems during use. The following are some common malfunctions and their solutions:
1. Knife line: There may be hard substances on the knife line, which, if not handled in a timely manner, may cause damage to the ink scraper. The solution includes cleaning impurities at the cutting edge and replacing the blade if necessary.
2. Trailing: When the ink scraper is hit, it will form a protrusion, causing ink to accumulate below the protrusion, resulting in a trailing phenomenon. The solution is to eliminate tailing by adjusting the scraper angle and pressure.
3. Resonance line: If there are continuous and regular ink spots on the printed product, it may be caused by ink particles. Replacing with new ink can solve the problem.
4. Ink dots: If the blade of the ink scraper is damaged, it may cause changes in the ink dots. The solution is to polish the blade to ensure that it is sharp and undamaged.
5. Uneven ink color: If the pressure of the ink scraper is uneven, it may cause uneven ink color. The solution is to adjust the scraper pressure according to the actual situation, so that it is evenly distributed.
6. Blade wear: If the blade is severely worn, it may need to be replaced. Appropriate tools and methods should be used during replacement to avoid damaging other components.
7. Improper blade angle: If the blade angle is not correct, it may cause problems with the cutting line and other issues. The correct blade angle should be at an angle of 60 ° to 70 ° to the tangent of the printing plate cylinder, and the distance between the blade and the embossing point should be 25 to 35 millimeters.
8. Knife holder adjustment: The height of the knife holder needs to be adjusted according to the size of the printing plate cylinder, while paying attention to the distance between the blade and the blade back, as well as the contact position between the scraper and the printing plate cylinder.
9. Scraper sharpness: Both new and old scrapers need to maintain sharpness, otherwise it may affect the printing effect. Regular polishing is an effective method to maintain sharpness.
10. Scraper gap: Scraper