Color printing method for polypropylene film composite corrugated paper box

Abstract

The invention discloses a color printing method for a polypropylene film composite corrugated paper box, which comprises the following steps that: 1, a power supply drives a driving shaft to respectively drive an annular composite roller, a glued anilox roller and flexible printing rollers of a flexible composite printing device; 2, a corrugated paper box is tightly adhered to the annular composite roller during primary compounding, and gluing contact is finished through paper tension; 3, the annular composite roller is rotated to drive the primarily compounded multi-layer corrugated paper box to make the paper box pass through a plurality of groups of flexible printing rollers; 4, ink color adjusted by an ink adjusting roller is transferred to the printing rollers; and 5, the printing rollers transfer the ink color to the surface paper of the primarily compounded multi-layer corrugated paper box so as to finish the printing process. The structure is more compact and reasonable by fully utilizing the space, the traditional parallel compounding mode is changed into an annular composite roller mode, the phenomenon that a paperboard is low in intensity and easy to slip in the prior art is avoided, the integral production of gluing, compounding and printing the multi-layer corrugated paperboard / box is realized, and the working efficiency is improved.

Description

technical field [0001] The invention relates to a printing method, in particular to a color printing method of a polypropylene film composite corrugated box. Background technique [0002] Corrugated box is made of corrugated cardboard after die-cutting, creasing, nailing or glueing. It is the most widely used packaging product. [0003] In recent years, domestic corrugated box production is to form multi-layer cardboard into corrugated cardboard through a forming machine, and use starch glue to bond multi-layer corrugated paper and multi-layer cardboard; at the same time, paste it with continuous printing paper rolls to form corrugated cardboard with printed patterns on the surface. After the corrugated cardboard is cut according to the specification and size, put it into the corrugated cardboard printing and slotting machine to slot the incision according to the carton specifications (here, because the surface layer has been printed in rolls, no printing will be done; if t...

AI Technical Summary

Problems solved by technology

However, the thickness tolerance of corrugated cardboard is too large and the surface of the roll paper is too rough, not smooth and glossy, and the pattern of corrugated cartons printed on film-coated paper cannot achieve the design effect

[0008] Therefore, the current market only has to print exquisite patterns on the surface paper of corrugated cardboard in advance and use a layer of transparent biaxially stretched film or cast film to coat the color printing packaging box with the adhesive and then compound the surface paper of the cardboard. It is impossible to obtain a packaging box made by laminating the biaxially oriented polypropylene film with the surface paper of the packaging box after printing exquisite patterns.

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