Plate staining, also known as non-patterning phenomenon, refers to the phenomenon that the ink that has leaked through the doctor blade is transferred to other aspects, and is a unique fault in gravure printing.
The main causes of plate contamination:
1. The printing speed is fast;
2. The printing ink has a hard viscosity;
3. Less dosage of thinner;
4. Extensive use of solvents other than No. 2 (standard) and No. 3 (slow drying) desiccants;
5. The drying of ink is slow;
6. The scraper is in a wavy state, the blade is protruding too much, the pressure of the scraper is too large, and the angle of the scraper is not accurate;
7. Around the plate roller is too thin.
The solution to plate contamination:
1. Reduce the printing speed and reduce the viscosity of the ink to reduce the shear stress:
2. Increase the amount of thinner resin to improve lubricity;
3. Discontinue the use of special drying and slow drying solvents in an effort to improve resolubility
4. Improve drying performance.
Matters needing attention in resolving plate contamination:
1. The circumference of the plate roller should be small;
2. The accuracy of the given scraper, grinding angle, etc .;
3. Excessive force applied to the scraper.
Purchase and wholesale of diamond paintings, all on our website! Looking for diamond paintings, Diamond Painting accessories, and diamond paintings, you can find our complete products, many styles, first-hand sources, many discounts, and excellent quality.We are a professional Eva Bag manufacturer, we are selling Diamond Painting Bottle Kit, Diamond Painting, and different kinds of Eva Bags. More Anisotropic Bright Diamond Painting is on sale, welcome to inquire. We support OEM service, and can undertake sample processing and drawing processing.
discount diamond painting kit,cheapest diamond painting kits,discount diamond painting
Dongguan Junkai Packaging Products Co., Ltd , https://www.diystoragecase.com