Why does the printing color on the color printing food packaging bag fall off
The color printing process makes the packaging bags popular with consumers, and the colorful colors also make the various food packaging bags look more colorful, however, it is unacceptable that the color on the color-printed food packaging bag falls off. However, it is also common for the color to fall off on the food packaging bag, so why does the color fall off: the use of printing ink and the choice of ordinary packaging bags are made of water-based ink, which is easy to fall off.
However, the printing of professional food packaging bags uses oily ink, which has good adsorption capacity and is difficult to fall off.
Printing method, the ordinary packaging bag uses the form of surface printing, and the surface printing is printed on the surface of the packaging bag.
The food packaging bag is printed in the way of printing. The printing is printed on the back of the packaging bag, and then the printing surface is reproduced in the packaging bag by composite method, this way the printing will not be exposed to the outside, better protecting the color of the printing.
In the storage environment, the storage of the packaging bag is very important. The packaging bag is placed under the sun for a long time, and the wind blows. Even the printing method in this environment will make the packaging bag fade, therefore, the packaging bag should be kept in a cool and ventilated place, so that the beautiful color of the packaging bag can be preserved for a long time. Shijiazhuang products wholesale