How are the colors and words printed on the mask bag?

It is printed. The pure aluminum mask bag has three layers, the top layer is PET suitable for printing, the second layer is aluminum foil, and the bottom layer is LDPE.

Generally, offset printing, that is, traditional printing, is a kind of lithography and the main printing method. Offset printing can clearly restore the color, contrast and level of the manuscript with high accuracy, and it is the most commonly used printing method at present. Inkjet printers can't do this. Ink printer, the kind that can print plastic, can print on aluminum foil bags.

Extended data:

Advantages of mask bag:

1, aluminum foil bag has the functions of moisture-proof, shading, anti-static and anti-electromagnetic interference, etc., and it is also called aluminum foil bag or pure aluminum foil bag;

2, it has the functions of tearing and self-sealing, which is convenient to open, can be sealed repeatedly and has good sealing performance;

3. Good toughness, high softness, good heat sealing, impact resistance, strong tear resistance, not easy to be damaged, and the quality and safety meet the standards;

4, double-sided aluminum foil material, beautiful and practical;

5, the bag can stand, and the yin and yang bag is stronger than the pure aluminum bag;

6. Excellent quality and high-grade appearance make the product by going up one flight of stairs, which is also the best choice for perfect packaging.