Packing box is everywhere in our daily life. Whichever supermarket you go in, you can see many different products packed with colorful and beautiful packing boxes. Also, during the development of the packing industry, paper, as a common packing material, is widely used in production.
Especially when you customize the packing box with the printing factory, the factory usually asks for the paper material. For those who are new in this field, you may not know the paper packing materials for packing boxes. Here we will share some knowledge of common paper materials for packaging boxes.
Some common paper packaging material for packaging boxes
Kraft paper is strong and has a low price. Kraft paper not only has good folding resistance and water resistance, but also has the characteristics of non-toxic, tasteless, pollution-free, high strength and high environmental protection. It is in line with international environmental protection standards. It is one of the most popular environmentally friendly packaging materials in the world.
As a result, kraft paper is mostly used for food, as well as 3C digital products, gift boxes, and other environmentally friendly packaging.
The corrugated paper has the advantages of light and strong, strong load and pressure resistance, shockproof, moisture-proof, etc., and the cost is low. According to the strength, corrugated paper can be divided into 5 categories: A grade, B grade, C grade, E grade, and F grade.
Generally speaking, corrugated cardboard made of A-type flute has good cushioning properties and a certain degree of elasticity. B-type flute has good stability, smooth surface, and can withstand high plane pressure, which is suitable for printing and is mostly used for outer packaging. C-type flute is more stable. Type A flute is next; the E flute is thin and dense, and the printing effect is better, but the strength is poorer, and it is mostly used for exquisite inner packaging.
In addition, according to the corrugated shape, corrugated paper can also be divided into V-shaped, U-shaped, and UV-shaped.
Coated paper is mainly refined from high-grade raw materials such as wood and cotton fibers. And it is divided into single copper and double copper. The double-coated paper refers to double-sided coated paper, which is smooth on both sides and can be used for double-sided printing, while single-coated paper has only one smooth side.
Generally, coated paper is suitable for multi-color register printing, with bright colors and rich layer changes after printing. It is mostly used for packaging of cosmetics, food, medicine and other high-end products.
White cardboard is a kind of thick paper coated paperboard with strong, thick and large weight. The base paper is composed of 3-4 layers on the paper machine. Generally, the basis weight is relatively high, thicker, and the bursting strength is high. Different grades of white cardboard with different weights have different requirements for stiffness and bursting strength. The larger the basis weight , the higher the grade, the higher the stiffness and burst resistance requirements.
Generally, white cardboard is often used to make packaging cartons, such as medicine boxes and cosmetic packaging boxes.