White cardboard: White cardboard is a strong, thick, and not easy to break paper with high stiffness, tear resistance and smoothness. Its surface is flat, the color is full, and the printing effect is excellent. It is the preferred material for making high-end paper bags. The thickness of commonly used white cardboard ranges from 210-300 grams, among which 230 grams of white cardboard is the most widely used.
White board paper: The front of white board paper is a white and smooth paper surface, and the back is mostly gray. Its price is more economical than that of white cardboard, so it is also one of the commonly used materials for making paper bags. When white board paper is used to make handbags, the commonly used thickness range is 250 grams-350 grams.
Coated paper: The surface of coated paper is smooth and flat, with high whiteness and good glossiness. The printed patterns and pictures have a three-dimensional sense. Its printing effect is comparable to that of white cardboard, but its stiffness is slightly inferior to that of white cardboard. Coated paper is also one of the commonly used materials for making paper bags, and the commonly used thickness is 128g-300g.
Kraft paper: Kraft paper has strong tensile strength and toughness, usually presents brown-yellow color, and is a representative of environmentally friendly materials. It is widely used to make shopping bags, envelopes, etc. With the continuous maturity of paper processing technology, white kraft paper and kraft paper of other colors are also available on the market. Kraft paper bags are not only tough and water-resistant, but also environmentally friendly and degradable, and are an important choice for green packaging. The commonly used kraft paper thickness is 120g-300g.
Single-powder paper: Single-powder paper is a special paper material with one side smooth and one side matte. The glossy surface can be used for printing to achieve printing effects of various colors. Single-powder paper bags are often used in occasions that require a certain degree of beauty and printing effects.