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Book Printing Factory in China : Note for Ink

1. Add proper auxiliaries in ink. Adding appropriate auxiliaries to the ink can adjust the printing adaptability of the ink to make the printing smooth. Most auxiliaries have adverse effects on the gloss of finished products. For example: anti-stick agent, the main raw material is six grains of powder, after adding, because of corn powder precipitation, imprint film surface rough, finished product gloss poor. Therefore, the general additives to add ink not more than 5, if considering the impact of gloss, should be as little or no. But the fluorocarbon surfactant is different of book printing factory in China, it can prevent the ink layer to appear orange peel, wrinkle and other surface defects, at the same time can improve the surface gloss of printing products.


2. Use dry oil correctly. For advanced strong light fast dry ink , at room temperature, humidity conditions, has sufficient drying capacity. If you need to add should be in the following conditions:, in the winter temperature, humidity is low; second, ink must be added anti-stick agent, anti-stick, thinning ink oil, etc., should add dry oil. In the process operation, the correct use of dry oil is very beneficial to the finished product to form luster. This is because the paper needs a certain amount of time to absorb the adhesive material, in this process, as soon as possible to concentrate the adhesive material to film drying, is the key to good gloss.


3. Watch the spray. Powder spraying, like ink, also produces condensation, especially in poorly sealed bags or buckets, where the powder is sprayed wet and condensed into larger particles, sprayed on the ink to form a rough film on the surface of the ink layer reduce the original gloss. Therefore, spray powder should pay attention to moisture-proof. In addition, a heating device is arranged on the mechanism of the powder spraying device. When using powder spraying, the heating device should be checked for failure.

 

4. The book printing factory in China will adjust the machine correctly. Whether the thickness of the ink layer reaches the standard will also affect the gloss of the ink. Such as poor pressure adjustment, high dot expansion rate, ink layer thickness does not meet the standard, the finished product gloss slightly poor. Therefore, to adjust the pressure, so that the dot expansion rate control at about 15%, printing ink layer thickness, flat, gloss.

Add ten thousand miles of water


5.(oil 0). This kind of oil viscosity is very large, it is very thick, can adjust the ink concentration, make the thin ink thicken, increase the gloss of printing products.


6. add light paste. Bright paste from raw materials processing high gloss, can increase the gloss of ink, but the dosage should not be too large, otherwise will reduce the drying speed of ink, sticky, pull phenomenon, affect gloss.



Release Date: 11-13-2020 17:06:07 [Go back Menu]

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