Coated paper, also known as printing coated paper, is made by coating a layer of white slurry on the base paper and calendering. Paper has smooth surface, high whiteness, low flexibility, good ink absorption and acceptability. It is mainly used for printing the covers, illustrations, color pictures, advertisements, samples, packaging boxes and trademarks of high-quality books and periodicals. Matte coated paper is less reflective than coated paper. The pattern printed with it is not as bright as coated paper, but it is more exquisite and upscale than coated paper. Printed graphics and pictures have a three-dimensional effect, so this coated paper can be widely used for printing pictorial, advertisement, landscape painting, exquisite calendars, portraits and so on.
Cardboard is an ideal material for making high-grade packaging boxes. Its good feel, ideal color and dot transfer conditions, stiffness and surface strength are all reasons for designers to choose. According to the requirements of different packaging boxes, designers can design and select various kinds of cardboard. (1) White cardboard is characterized by high whiteness, soft luster, elegance and nobility, good dot transfer during printing, high level and color reproduction, and delicate feel. Designers often use white cardboard in high-end products such as gift boxes, cosmetic boxes, wine boxes and tags. (2) Glass cardboard Glass cardboard is a kind of cardboard made by vitrifying the surface of white cardboard. This kind of paper has very high surface gloss and smooth hand feel, and the visual effect after UV glazing is higher than that of paperboard and coated paper. The products made of this kind of cardboard are very bright and dazzling. Designers often apply glass paperboard to the packaging boxes of medicines and high-end cosmetics.
Cardboard is a kind of paper with layered structure, and its basis weight is 220g/m2, 240g/m2, 250g/m2, ... 400g/m2, 450g/m2, with a wide range, and the most materials are selected. This kind of paper has a certain stiffness and surface strength, especially the coated whiteboard paper has a surface coating, so the printing ink is not easy to penetrate, the consumption is small, and the color and dot transfer of the printed image are good. But the disadvantages are poor flatness and slow printing speed; Another disadvantage is that the feel is obviously rough compared with cardboard.
Corrugated board is the most commonly used corrugated board, and the color of corrugated board itself is relatively dark, so when choosing printing color, we must consider choosing ink with large color saturation and strong coloring power (such as big red) as far as possible, otherwise the printed color will be far from the desired color. Ink viscosity is the main index to be controlled in corrugated board printing and one of the main factors affecting printing color. Corrugated board is used for display racks in food, clothing, sporting goods, IT products, daily necessities, automobile supplies, music, books and other industries. In order to cater to the diversity of paper display stands and be more popular with consumers, it is often used with other materials, so that paper display stands can carry more shapes and are more novel.