Ink anti-cracking printing method applied to bending position of paper box

Abstract

The invention discloses an ink anti-cracking printing method applied to a bending position of a paper box. The method comprises the following steps of 1, putting base paper into a printing device, andprinting an ultra-flexible bottom coating with a width of 2 mm at the position, corresponding to an indentation position of the bending position of the packaging box, of the front surface of the basepaper; 2, carrying out offset printing on the base paper, and drying by adopting a UV lamp; and 3, sending the base paper which is subjected to offset printing into a die cutting indentation device,and carrying out die cutting and indentation according to a set specification. According to the ink anti-cracking printing method applied to the bending position of the paper box, the ultra-flexible bottom coating is printed on the indentation line and the edge position of an existing product, so that the toughness at the bending position of the paper box is strengthened, the problems of crackingof a printing layer at the bending position and the like are avoided, and the printing quality of the paper box is improved.

Description

technical field [0001] The invention relates to a printing process, in particular to an ink crack-proof printing method at the bending part of a carton. Background technique [0002] After the cigarette pack wrapping paper is folded and formed by die-cutting and indentation, the position of the indentation line needs to be folded at 180 degrees, which will cause cracks and bursts in the printing ink. There are many reasons for ink bursting at creases. Usually, cigarette pack wrapping paper is printed with PET transfer gold and silver cardboard, and the base paper is covered with glue layer, aluminum foil layer, and varnish layer. In order to pursue the sense of printing layering, inks such as snowflakes and wrinkles are often printed in full on gold and silver cardboard. Cigarette packs are generally printed with UV printing. After the base paper is printed with multi-layer inks and UV baked, it is easy to cause cracks and affect the appearance of the package. Especially a...

AI Technical Summary

Problems solved by technology

Cigarette package printing is generally UV printing. After the base paper is printed with multi-layer ink and UV baked, it is easy to cause cracks, which affects the appearance of the package.

Especially at present, after the existing carton is indented, the printed side is the outside, and the indentation will be cracked due to being stretched, while the other side is generally the inner side of the packaging box, and the inside is squeezed to form a raised mark. There are also cases of rupture

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