In-situ printing ink color unevenness is a common problem in printing. Generally, the printed products are characterized by water-grain unevenness and orange peel unevenness. Many people are troubled by this and always want to find out the reasons and solutions. Then this article will introduce the reasons for the uneven printing ink color and the corresponding solutions.
1, the reason
The unevenness of the water-stained color is mainly caused by the intaglio being carved too deeply and the viscosity of the ink being low.
The main reason for the unevenness of the orange peel color is that an excessive amount of a polar solvent such as methyl ethyl ketone is added to the ink. Second, the viscosity of the ink is too high, resulting in poor leveling. The third is the quality of the embossing roller (the density of the granules is inconsistent), resulting in uneven pressure on the different parts of the plate cylinder during printing.
2, the solution
(1) Contact the plate-making company to make a test version to test the inks and solvents used according to the conventional process conditions. Ink mainly tests common spot color inks, such as Asakusa, Green Grass, Ultramarine, Brown, Sauce, Medium Blue, Yellow, and Vermilion. Through the test to find the matching results of the plate cylinder, ink, printing conditions. Based on this, the plate-making enterprise determines the appropriate engraving process parameters. The intaglio plate processed by this process has strong adaptability in solving the uneven printing of the spot color plate.
(2) When receiving new jobs, communicate with customers in a timely manner, and try to avoid carving the spot color version too deeply. If the intaglio is carved deeper, the working viscosity of the ink can be appropriately increased on the basis of ensuring the leveling property of the ink.
(3) For the uneven color of the orange peel of the spot color, the first one appropriately reduces the viscosity of the ink, the second class appropriately reduces the pressure of the embossing rubber roller, and the third is to increase the printing speed as much as possible.
(4) Reasonably adjust the solvent ratio and the working viscosity of the ink. When the printing speed exceeds 100m/min, the viscosity of the ink is generally controlled at about 20~26s, and the solvent can be appropriately increased in the solvent ratio.
In-situ printing ink color unevenness is a common problem in printing. Generally, the printed products are characterized by water-grain unevenness and orange peel unevenness. Many people are troubled by this and always want to find out the reasons and solutions. Then this article will introduce the reasons for the uneven printing ink color and the corresponding solutions.
1, the reason
The unevenness of the water-stained color is mainly caused by the intaglio being carved too deeply and the viscosity of the ink being low.
The main reason for the unevenness of the orange peel color is that an excessive amount of a polar solvent such as methyl ethyl ketone is added to the ink. Second, the viscosity of the ink is too high, resulting in poor leveling. The third is the quality of the embossing roller (the density of the granules is inconsistent), resulting in uneven pressure on the different parts of the plate cylinder during printing.
2, the solution
(1) Contact the plate-making company to make a test version to test the inks and solvents used according to the conventional process conditions. Ink mainly tests common spot color inks, such as Asakusa, Green Grass, Ultramarine, Brown, Sauce, Medium Blue, Yellow, and Vermilion. Through the test to find the matching results of the plate cylinder, ink, printing conditions. Based on this, the plate-making enterprise determines the appropriate engraving process parameters. The intaglio plate processed by this process has strong adaptability in solving the uneven printing of the spot color plate.
(2) When receiving new jobs, communicate with customers in a timely manner, and try to avoid carving the spot color version too deeply. If the intaglio is carved deeper, the working viscosity of the ink can be appropriately increased on the basis of ensuring the leveling property of the ink.
(3) For the uneven color of the orange peel of the spot color, the first one appropriately reduces the viscosity of the ink, the second class appropriately reduces the pressure of the embossing rubber roller, and the third is to increase the printing speed as much as possible.
(4) Reasonably adjust the solvent ratio and the working viscosity of the ink. When the printing speed exceeds 100m/min, the viscosity of the ink is generally controlled at about 20~26s, and the solvent can be appropriately increased in the solvent ratio.
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Pet Spring And Summer Wear
Pet spring and summer clothing mainly includes Outdoor Dog Raincoat, Pet Life Jacket, Pet Dog Recovery Suit, Pet Dog Pajamas, and daily Cat Dog Outfits.
Outdoor Dog Raincoat are necessary in spring and summer. It rains a lot in summer, but dogs need to go out to excrete or they want to go out to play. Having a high-quality raincoat at this time can solve many problems. Be sure to put a raincoat on the dog before going out, because if the dog gets wet, it is easy to catch a cold and get sick if it is not handled properly. So buy a raincoat for the dog, so that the dog can still play freely even in rainy days.
Pet Life Jacket. In summer, the owner may take the dog to swim or play on the beach. At this time, pet life jacket will play its role. Although dogs can swim, just in case. Put a life jacket on the dog so that the dog can play freely in the water.
Pet Dog Recovery Suit are clothes that are worn on pets after surgery to help heal wounds. Because dogs may lick or scratch wounds, which is not conducive to recovery after surgery, they need to wear this kind of clothes. It mainly has the advantages of soft, close fitting and easy to wear.
Pet Dog Pajamas can be worn by pets at home. Soft and comfortable, light and breathable. Wearing pajamas can also prevent hair loss.
Daily Cat Dog Outfits, decorative clothes worn by pets when they go out. It is characterized by cute printing and funny modeling.
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