Toilet paper can be in the shape of a single square sheet, which is
called a square towel or facial tissue, or rolled into a roll. They
are usually made of cotton pulp, wood pulp, straw pulp, sugarcane
pulp, mixed pulp, and waste paper pulp. Good quality toilet paper
is made of virgin wood pulp. Its manufacturing process is similar
to that of ordinary paper, but it is required to be made extremely
thin and fragile, so that it will rot when it encounters water,
achieving the purpose of environmental protection.
