Whiteboard (Advertising Board)

Also known as corrugated cardboard. It is made of at least one layer of corrugated paper and one layer of boxboard (also called boxboard), which has good elasticity and extensibility. Mainly used in the manufacture of cartons, the center of cartons and other packaging materials for fragile goods. It is mainly made of native straw pulp and waste paper by beating to make the original cardboard similar to yellow cardboard, and then rolled into a corrugated shape through mechanical processing, and then bonded with the boxboard paper with an adhesive such as sodium silicate on the surface.

The corrugated corrugations of corrugated cardboard are like connected arched doors, which are arranged in a row and support each other to form a triangular structure. It has a good effect; it can be made into pads or containers of various shapes and sizes according to needs, which is simpler and faster than plastic buffer materials; it is less affected by temperature, has good shading properties, is not deteriorated by light, and is generally less affected by humidity. However, it is not suitable for long-term use in an environment with high humidity, which will affect its strength.