Canvas is a thicker cotton fabric or hemp fabric, named after it was originally used for sails. Generally, plain weave is used, a small amount of twill weave, and multi-strand yarns are used for warp and weft yarns. Canvas is usually divided into two categories: coarse canvas and fine canvas.
Coarse canvas, also known as tarpaulin, has good waterproof performance. The biggest feature is its robustness and durability. It is used to cover automobile transportation and outdoor warehouses and to set up tents in the wild. Fine canvas is used to make labor protection clothing and its supplies. After dyeing or printing, it can also be used as shoe materials, luggage fabrics, handbags, backpacks, tablecloths, tablecloths, etc. In addition, there are rubber canvases, shielding canvases for fire and radiation protection, and canvas for paper machines.