Toilet paper is mainly used for daily hygiene of people's lives and is one of the indispensable paper types of the people. In order to make toilet paper soft, wrinkles are usually produced by mechanical methods to increase the softness of toilet paper. There are many raw materials for making toilet paper, and common non-polluting raw materials such as cotton pulp, wood pulp, bamboo pulp, and straw pulp are commonly used. Toilet paper requires no toxic chemicals, raw materials that are irritating to the skin, and no residues of fungal and viral bacteria. The characteristics of toilet paper are strong water absorption, no pathogenic bacteria (pathogenic bacteria such as E. coli are not allowed), soft and thick paper with no holes, uniform wrinkling, uniform color and no impurities. If small rolls of double-layer toilet paper are produced, the punching pitch should be the same, the pinholes should be clear, easy to tear and neat.