Different types of printing boxes require different paper secton 2
Different types of printing boxes require different paper secton 2
Kraft paper
Kraft paper is divided into white cowhide and yellow kraft paper. Kraft paper has high strength, good toughness and is not easy to be broken. Yellow kraft paper is usually yellowish brown. Semi-bleached or fully bleached kraft pulp is cream or white. Commonly used gram weights are 275g, 325g, 375g. When making a package, a high-weight kraft paperboard is generally used. Some designers also particularly like to use kraft paper to design dessert packaging. With the development of kraft paper, it will gradually be applied to more fields such as cosmetics and food packaging.
Coated paper
Coated paper is divided into single-sided and double-sided. The coated paper is mainly made of high-grade raw materials such as wood and cotton fiber. It is about 70g-400g per square meter, and 250g or more is called copper white card. The paper is coated with a layer of white candy box with handle pigment, the white surface is white, the smoothness is high, and the ink can be printed to paper bag for flour packaging reveal a bright bottom. It is suitable for multi-color plate printing, with bright colors after printing, rich layers, clear graphics, commonly used in gifts. Boxes and hand-held paper bags, as well as some packaging boxes for export products, etc., low-strength thin coated paper is suitable for smashing on the surface paper box packaging perfume of the package, stickers and so on.
White paper
Whiteboard paper is an outer packaging paper for printing various trademarks and packaging cartons, weighing 220, 240, 250, 280, 300, 350, 400 (g / m2); flat paper specifications: 787 × 787, 787 × 1092, 1092 × 1092 (mm × mm).
The whiteboard paper is composed of pulp and noodles, and the pulp is white. The pulp is generally the natural color of the raw materials. Whiteboard paper is divided into two categories: white noodle kraft paper package machine whiteboard and ordinary whiteboard. According to the bottom layer, there are two kinds of gray bottom and white bottom. The quality requirements of whiteboard paper: white, smooth, uniform thickness, firm texture, no powder removal, uniform ink absorption, small expansion, toughness, no break paper packaging for food when bending. Mainly used for printing shoe packaging and merchandise upholstery. In book binding, it is used for binding materials such as paper seals and ridges in hardcover packaging machine carton box books and hardcover books.
Precautions when printing
