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What should be paid attention to to prevent staining of self-adhesive labels?

Release Time:

Nov 12,2021

What should be paid attention to to prevent staining of self-adhesive labels? The main points of attention include the following three aspects, and Xiaoda will introduce and analyze the specific ones for you.

1. Self-adhesive is easy to get dirty on the back when it is printed on the solid page. This is due to the poor ink absorption of the coated paper on the self-adhesive surface. Try to use the original ink when printing instead of 6# mixing oil. Do not add dry oil when the weather is hot. It is often easy to get dirty on the back of the printed page, and it is usually solved by spraying powder. Although the printing anti-sticking dust spray contains pure vegetable materials and has good dispersibility and fluidity, the use of powder spray will directly affect the printed product. The surface is glossy, so that the ink is not bright, and pollutes the environment, and it also affects the accuracy of the offset press.

2. Pay attention to the balance of water and ink in offset printing, and control the water size of the printing plate. Use the minimum amount of water on the printing plate under the premise of not dirtying the printing plate. The sticker is smooth and smooth. When printing on the solid ground, you must print dark colors first, and the amount of ink printed is sufficient, and the back is not dirty. Overprint the background color thinly, so that the printed product will have a better finish.

3. To overcome the disadvantages of large water and large ink in offset printing, the ink can not be adjusted too thin, too thin and easy to stain the back, if it is too thin, add some new ink to enhance the ink viscosity.