Now almost all commodities need packing boxes. Beautiful packing boxes also have a very good effect on the promotion of products. Do you know how the packing boxes are printed? What are the common printing methods of packing box printing? Today, the small edition of Jinan printing and packaging will explain it to you.
Where the printed image and text are higher than the blank part, the ink shall be coated around the image and text to make the image and text imprint on the surface of the printed matter through the effect of pressure.
Now it is customary to call offset printing lithography. The image and the blank part of the printing plate are on the same plane. By the principle of separation of oil and water, the image and the text are transferred to the surface of the printed matter.
Gravure printing and letterpress printing are just opposite, the graphic part is concave, while the blank part keeps the original plane. The graphic part bears the ink layer, which is realized by the pressure of the printing drum, and moves the ink layer to the surface of the printed matter.
For more information, please click Jinan printing and packaging website http://www.sdyszb.com 。