Lightweight flexible pre-printed color corrugated paper board and method of making the same

Abstract

The invention relates to lightweight flexible pre-printed color corrugated paper board less than or equal to 400 g / m2 and a method of making the same; the paper in the external and internal parts of the corrugated paper board is 125 to 150 grams boxboard; the corrugated base paper with 100 to 150 grams of core paper is sent into the corrugated paper forming module to press into corrugated paper, then two sides of the core paper are coated with a layer of aqueous bond layer; then the 125 to 150 grams external and internal paper is compounded on edges of corrugations at two sides of the core paper, then sent into the drying tunnel to bake such that the aqueous bond layer forms the solid support layer. The invention has the advantages that: firstly, the paper board uses three-layer corrugated paper board to replace the five-layer corrugated paper board, which has little material consumption, light weight and high strength; secondly, the paper board makes the color effects of the corrugated paper like the high-level color printing effect similar to offset printing; thirdly, the paper board ensures that the strength of the corrugated paper board and the paper box formed therethrough are not damaged.

Description

technical field [0001] The present invention relates to a ≦400g / m 2 The invention discloses a lightweight flexographic pre-printed color corrugated cardboard and a manufacturing method thereof, which belong to the field of corrugated cardboard manufacturing. Background technique [0002] At present, the corrugated cardboard sold in the market is mainly five-layer cardboard in China. In terms of structural design, corrugated cardboard is composed of face paper, inner paper, first-core paper, and second-layer corrugated paper. The weight of face paper and inner paper is 150g~250g boxboard respectively. The core paper and corrugated paper are made of 120g~180g corrugated base paper, which is formed by corrugated pressing. . Its disadvantages are as follows: firstly, it consumes a lot of paper and energy; secondly, the formed corrugated cardboard is heavy in weight, low in strength and weak in support. At the same time, the post-printing process of cardboard has a great influ...

AI Technical Summary

Problems solved by technology

Its disadvantages: first, it consumes a lot of paper and energy consumption; second, the corrugated cardboard is heavy, low in strength and weak in support

At the same time, the post-printing process of cardboard has a great impact on the strength of cardboard (strength loss of 10% - 30%), and it is difficult to achieve high-quality printing effect

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