Many varieties of paper bags, paper and diverse variety of materials, styles a lot.
Material can be divided into: white cardboard paper, white paper bags, art paper bags, kraft paper bags, as well as a small amount of a specialty paper manufacturing.
White cardboard: thick white cardboard strong, have a higher stiffness, bursting strength and smoothness, the paper flat, common thickness is 210-300 grams of white cardboard, with a maximum of 230 white card. Printed with white cardboard paper, full color, paper texture is also very good, is the first choice for your custom.
Copperplate paper: coated paper is characterized by a very smooth, high whiteness, smooth high gloss, also makes printed graphics, screen with three-dimensional sense, common thickness of 128 grams -300 grams, copperplate paper effects and white cardboard printed as full of bright colors, compared with white cardboard, white cardboard stiffness less.
White kraft paper: white kraft paper bursting high toughness, high strength, evenness of color as stable thickness, according to relevant national laws and regulations restrict the use of supermarket plastic bags, as well as foreign countries, Europe and other countries to promote environmentally friendly paper bag trend, strict control of plastic pollution, plastic bags will be environmentally friendly alternative to paper, white kraft market prospects. 100% pure wood pulp manufacturing, environmental protection, non-toxic, environmentally friendly recycling, white kraft toughness good, but not film, is widely used in the production of environmentally friendly garment bag, upscale shopping bags. Common thickness of 120 grams -200 grams of white kraft paper, paper no brightness and gloss, white kraft paper is not suitable for printing ink too much content.
Kraft: also known as brown kraft. With high tension, high toughness, usually brownish yellow, high tear strength, burst and dynamic strength, widely used in shopping bags, envelopes, and so on. Common thickness of 120 grams -300 grams of brown kraft. Kraft is generally suitable for printing monochrome or color, and the color is not complicated manuscript. Relative to the white cardboard, white paper box art paper, kraft paper yellow lowest price.
Duplex board paper: white paper is a positive and smooth white back duplex cardboard mostly commonly used thickness is 250 grams -350 grams, white paper side is white, one side is gray, the price is relatively cheap white paper jams a little.
Black cardboard: as a specialty paper, double-sided black. Black cardboard paper is characterized by delicate, through the heart of black, strong and thick, good folding, smooth surface, good stiffness, tension and good resistance to high breaking and so on. Common thickness of 120 grams -350 grams of black cardboard. Because black cardboard inside and outside are black, so you can not print in color pattern, only suitable for bronzing, hot silver craft. Made out of the bag is also very beautiful oh.
According to the bag side, bottom and back cover in different ways: there are openings on the bottom pocket, opening bond angle bottom bags, valve suture bag, valve bag flat hexagonal end of the bottom four kinds of adhesive paper types.
According to different ways of grip and digging holes: NKK (Punch wearing rope), NAK (no holes rope, no mouth off and standards into a mouth-fold type), DCK (cordless body bags to dig holes handle), BBK (there tongue mouth without punching).

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