What are the materials used to make paper bags?

There are many types of paper bags, various types of paper materials, and many styles.

According to the material, it can be divided into: white cardboard bag, black cardboard bag, copperplate paper bag, kraft paper bag, and a small amount of special paper.

According to the bag side, the bottom and the back cover are different: there are four types of paper bags, such as open seam bottom bag, open adhesive corner bottom bag, valve type sewing bag, valve type flat hexagonal end bottom adhesive bag and so on.

According to the different ways of handle and hole digging: NKK (hole punching rope), NAK (no hole and rope, divided into no mouth fold and standard mouth fold type), DCK (cordless bag body hole digging handle), BBK (with The tongue is not punched).

According to different uses: including file bags, envelopes, handbags, cement bags, feed bags, wax paper bags, fertilizer bags, laminated paper bags, four-layer paper bags, medicine bags, clothing bags, food bags, shopping bags, gift bags, wine and water bag. Different uses, the designed size, including the thickness of the paper bag paper, have many requirements.

Material classification and characteristics of paper bags:

Usually, the materials of paper bags are: white cardboard, kraft paper, black cardboard, coated paper and special paper.

Advantages of white cardboard: strong, durable, good smoothness, rich and full printed colors, 210-300g white cardboard is commonly used for paper bags, and 230g white cardboard is often used. Our Custom retail bags and Euro tote bags are made from white cardboard.

The advantages of kraft paper: are high toughness and firmness, not easy to tear, and recyclable. Kraft paper is generally suitable for printing some single-color or two-color paper bags that are not rich in color. Our custom kraft paper bags and custom paper grocery bags are made of white kraft paper and yellow kraft paper, which can be printed for you in four colors and four sides to ensure the personality of your paper bag. The usual weight is 65-300 grams.

The advantages of black cardboard: solid and durable, the color is black because the black cardboard itself is black, and its biggest disadvantage is that it cannot print colors, but it can be used for bronzing, bronzing and other processes.

The advantages of coated paper: the whiteness and gloss are very good, and it can take pictures and pictures show a three-dimensional effect when printing, but its firmness is not as good as that of white cardboard. The thickness of the coated paper used for the paper bag is 128-300 grams.

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