Hello. The main component of cardboard shell is generally pulp. It is basically non-toxic, but it has a special smell when it meets water. Cardboard is also called cardboard. Thick paper made of various pulps and interwoven fibers. The difference between paperboard and paper is usually distinguished by quantity and thickness.

Brief introduction of white paperboard

White cardboard is a kind of white vermicelli cardboard with 2-3 layers structure, and it is a relatively advanced packaging cardboard, which is mainly used for sales packaging. After color printing, it can be made into various cartons and boxes, which can play a propaganda role in protecting goods, decorating and beautifying goods, and can also be used to make labels, liners and plastic packaging floors.

White cardboard, also known as Manila paper, is used to print children's educational pictures and trademarks of stationery, cosmetics and medicines. The ration is 200g/m2 to 400g/m2. Uniform thickness, no hair loss, no powder loss, tough, not easy to break when folding.

White cardboard consists of surface layer, core plate and bottom layer. When white boards are produced, bleached pulp is used for the top and bottom layers, and mechanical pulp, secondary fiber pulp or other unbleached and semi-bleached pulp is used for the core layer. The product consists of 3 ~ 6 or more layers. Generally, the bleached pulp on the surface requires a certain sizing degree and printing adaptability.