Portable paper bag manufacturers custom process: paper bag design publishing → → → coated printing paper Die → → → drawstring pasting → → shipped by packing material can be divided into: white cardboard paper, white paper bags ,, kraft paper bags, but also There is a small amount of specialty paper manufacturing. White cardboard: strong white cardboard thick, with high stiffness, bursting strength and smoothness, the paper flat, commonly used thickness is 210-300 grams of white cardboard, the most widely used is 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, high smoothness, gloss, also makes printed graphics screen with three-dimensional, common thickness of 128 g -300 g, copperplate paper effects and white cardboard printed as full color bright, compared with white cardboard, white cardboard less stiffness. White kraft paper: white kraft paper bursting high toughness, high strength, thickness uniformity of color like stability supermarket according to relevant national laws and regulations restrict the use of plastic bags, as well as foreign countries, Europe and other countries to promote the trend of environmentally friendly paper bags, plastic strict control pollution, plastic bags are environmentally friendly alternative to paper, white kraft paper market prospects. 100% pure wood pulp manufacturing, environmental protection, non-toxic, environmentally friendly recycling, white kraft paper toughness good, but not the film, widely used in the production of environmentally friendly garment bag, upscale shopping bags. Commonly used 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, etc. Commonly used 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 coated paper, yellow kraft paper lowest price. Duplex board paper: white paper is a positive white and smooth, mostly on the back of the duplex cardboard, 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 break and so on. Commonly used thickness of 120 grams -350 grams of black cardboard. Because black cardboard inside and outside is black, so you can not print color patterns, is only suitable for hot, hot silver craft. The bag is made out of very nice oh.