A method for anti-crack printing of ink at the bend of carton

Abstract

The invention discloses a method for anti-crack printing of ink at the bend of a carton, which includes step 1, putting base paper into a printing device, and printing a 2mm wide ultra- Flexible primer; step 2, offset printing on the base paper, drying with UV light; step 3, complete offset printing base paper, send it to the die-cutting and creasing equipment, and perform die-cutting and creasing according to the set specifications. In the anti-crack printing method of the ink at the carton bending part of the present invention, the super-flexible primer is printed on the indentation line and the knife edge position of the existing product, which strengthens the toughness of the carton bending part and avoids the fracture of the printing layer at the bending part The occurrence of such problems has improved the quality of carton printing.

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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