To improve the quality of honeycomb paperboard, be careful to prevent improper use of raw materials.

Honeycomb cardboard, as a paper packaging material, is currently accepted by users. Honeycomb paperboard products have a broad market prospect due to the advantages of resource conservation, protection of the ecological environment, and the development trend of materials in the international packaging industry.

However, honeycomb paperboard manufacturers often have quality problems due to improper use of raw materials. Common quality problems are generally: Honeycomb paperboard is made of starch viscose, and it tends to be moldy for a long time. The quality of viscose is not good. The upper and lower sheets of paper will open the glue in a large area; when the paperboard is bent, it will cause the upper layer to break and the lower paper Separation; Honeycomb paperboard is easy to break when impacted; honeycomb paperboard is soft, hand-press will go down phenomenon; core sizing quality is not good, the core layer has many holes, easily broken when stretched; , easy to deform; for various reasons make the paper uneven, wrinkles or warping. Honeycomb paperboard quality problems, how to solve it? Insiders believe that, first of all from the honeycomb paperboard used in honeycomb paper? Acupoint refers to honeycomb paper and honeycomb paper core paper? Snow grab.

One is to select the amount of paper according to the actual situation. The core paper of the honeycomb paperboard, that is, the corrugated paper, has a basis weight of 120-180 g/m2, and a dough paper weight of 200-500 g/m2. The second is to determine the directionality of the paper. In the production of honeycomb paper, when the fiber direction of the core paper is perpendicular to the honeycomb paper, its compressive strength is higher by 10%. Pay attention to the moisture content of the paper. Water has a significant effect on the flexibility, elasticity and strength of the paper. The moisture content of general honeycomb paperboard base paper is between 8% and 12%. The third is to select the paper's ring pressure strength. The higher the ring pressure strength, the higher the compressive strength of the honeycomb paperboard and the higher its carrying capacity. Secondly, choose the adhesive used in the production of honeycomb paperboard.

At present, most of honeycomb paperboard uses corn starch glue and white latex. Although the content of corn starch glue is slightly higher, it has many defects, such as low adhesive strength, brittleness, aging, poor moisture resistance, and mildew. White latex is generally of stable quality, high production rate and elongation rate, fast drying, good strength, high content, long service life, and is suitable for large-area operations. Due to the quality of the adhesive, it directly affects the peel strength, shear strength and compressive strength of the honeycomb paperboard, so the choice of adhesive is also one of the important factors that affect the quality of the honeycomb paperboard.