Among the quality indicators of packaging box printing and production, several materials play an important role. Therefore, corporate customers should carefully select the materials of packaging boxes before custom printing of packaging boxes. Below we introduce in detail several commonly used materials for packaging boxes. materials and their characteristics.
White cardboard, also called single copper paper, is the most commonly used material in the carton packaging industry. White cardboard is a strong, thick, and large-weight paper. The front side of white cardboard has high whiteness and gloss. The smoothness and fineness have high printability. The back of the white cardboard has not been uncoated. Compared with the front, the gloss, smoothness and whiteness are slightly worse. Because of the high gloss of the front of the white cardboard, some people use it. It is compared with the breadth of copper, so this kind of paper is also called [single copper paper]. Commonly used weights are: 250.300.350.400 grams.
White board paper is a kind of packaging paper made from waste paper. The quality of white board paper is slightly lower than that of white cardboard. The surface of white board paper also has high whiteness and gloss, but the paper core and back are gray. Regular winnings include: 230, 250, 300, 350, 400 grams.
With the development of the packaging industry, the requirements for product packaging boxes have become higher and higher, and the demand for gold and silver cardboard has also increased year by year. Gold and silver cardboard is a kind of paper made of white cardboard and aluminum gold and silver film. In layman's terms, it means that a thin gold and silver aluminum film is pasted on the white cardboard. Conventional gold and silver cardboard Weight: 275.325.375 grams.
Kraft paper is divided into white kraft paper and yellow kraft paper. High-weight kraft paper is generally used for packaging box printing. Kraft paper has high strength, good toughness, and is not easy to break. Yellow kraft paper is usually yellowish brown. Semi-bleached or fully-bleached kraft pulp is cream or white.
Conventional weights are: 275.325.375 grams, which are used in different packaging boxes due to product needs and designs.
In addition, packaging materials include corrugated paper, also called corrugated paper, special paper, gray board paper and other materials
