Kunshan Construction contract import and export trade introduction: Where is the difference between copper sheet paper and white cardboard?

Coated paper and white cardboard are generally hard and thick paper materials. If the difference is made from the appearance, white cardboard is generally white, and the color of coated paper is richer, including white, brown, gray and other different colors, not only. So how to distinguish between white cardboard and copper paper? The following is a rough analysis by Kunshan Jianyo Import and Export Trading Co., LTD.

White cardboard paper whiteness requirements are relatively high, the general classification of three levels: A whiteness is greater than 91%, B is greater than 86%, C is not less than 82%. Therefore, especially white paper is white cardstock (that's the name).

White cardstock is generally used for the following purposes: printing covers, business cards, certificates, invitations, monthly calendars and postal postcards. White cardboard is also a strong thick, quantitative larger thick paper. In the past, it was proposed to divide paper, cardboard and cardboard on a quantitative basis. The most common cardstock is not colored, so it is called white cardstock. If the color, according to the color called color card. There are two kinds of copper paper, one is single copper paper, and the other is double-sided copper paper. Single copper paper has bright surface, uniform coating, fast ink absorption and good printability, suitable for fine color printing. For the purpose of fine printing, the surface of the base paper is coated with paint and pressed by a super calender. Double copper paper is divided into single-side and double-side coated coated paper, according to the Japanese paper classification standard, the coating amount of each side is about 10g/m2 or more, which is one of the most commonly used paper types in cultural publishing, advertising design, printing and binding and industry and commerce.