Paper Bag Classification

There are many varieties of paper bags, a variety of paper materials, many styles, can have a variety of forms of presentation.
According to the material can be divided into: white cardboard paper bags, white board paper bags, copper paper bags, kraft paper bags, and a small number of special paper manufacturing.
White cardstock: white cardstock is firm and thick, has high stiffness, break resistance and smoothness, paper surface is flat, the commonly used thickness is 210-300 grams of white cardstock, the most used is 230 white card. Paper bags printed with white cardboard, full color, paper texture is also very good, is your first choice for customization.
Copperplate paper: copperplate paper is characterized by the paper surface is very smooth and flat, high whiteness, high smoothness, good gloss, but also makes the printed graphics, the picture has a three-dimensional sense, the commonly used thickness is 128g -300g, copperplate paper printing effect and white cardboard, the color is full and bright, compared with white cardboard, stiffness is not as good as white cardboard.
White kraft paper: white kraft paper with high break resistance, good toughness, high strength, uniform thickness color image stability, according to the relevant national regulations, supermarkets restrict the use of plastic bags, as well as foreign countries, Europe and the United States and other countries to promote the trend of environmentally friendly paper bags, strict control of plastic pollution, plastic bags will be replaced by environmentally friendly paper bags, white kraft paper market prospects. 100% pure wood pulp manufacturing, environmentally friendly non-toxic, environmentally friendly recycling, white kraft paper toughness is very good, and do not use film, widely used in the production of environmentally friendly clothing handbags, high-end shopping bags. The commonly used thickness is 120g -200g of white kraft paper, the paper has no brightness and gloss, and the white kraft paper is not suitable for printing ink too large content.
Kraft paper: also known as brown kraft paper. It has high tensile strength, high toughness, usually brownish-yellow color, high tear strength, rupture and dynamic strength, widely used in shopping bags, envelopes and so on. The commonly used thickness is 120g -300g of brown kraft paper. Kraft paper is generally suitable for printing monochrome or two-color and color is not complicated manuscript. Compared with white cardboard, white kraft paper box coated paper, the price of yellow kraft paper is the lowest.
White board paper: white board paper is a kind of front is white and smooth, the back is mostly gray cardboard, the commonly used thickness is 250g -350g, one side of white board paper is white, one side is gray, the price is a little cheaper than white card paper.
Black cardstock: a kind of special paper, black on both sides. Black cardstock paper is characterized by fine paper, deep black, strong and thick, good folding resistance, smooth surface, good stiffness, good tension, high break resistance. The commonly used thickness is 120g - 350g black cardboard. Because the black card paper is black inside and out, it can not print color patterns, only suitable for hot gold, hot silver and other processes. The resulting bag is also very beautiful.
According to the different ways of bag edge, bottom and bottom sealing: there are four types of paper bags, such as open seam bottom bag, open adhesive corner bottom bag, valve type suture bag, valve type flat hexagonal end bottom adhesive bag.
According to the different ways of handling and digging holes: NKK (punching rope), NAK (no hole with rope, divided into no mouth folding and standard mouth folding type), DCK (cordless bag body digging handle), BBK (tongue without punching).
According to the different use: including archive bag, envelope, handbag, cement bag, feed bag, waxed paper bag, fertilizer bag, laminated paper bag, four-layer paper bag, medicine bag, clothing bag, food bag, shopping bag, gift bag, wine and water bag. Different uses, the size of the design specifications, including the thickness of paper bags have many requirements, so it is necessary to customize according to the actual situation, to achieve twice the result with half the effort, the purpose of economic applicability, for the reduction of material saving, green environmental protection, enterprise capital investment, to provide more protection.