The first page of many books is a piece of sulfuric acid paper. What role does sulfuric acid paper play in the first page of the book?

Sulfuric acid paper is firm, dense and slightly transparent, and has the characteristics of strong oil resistance, waterproof permeability, good air tightness and high wet strength, and can be waterproof, moisture-proof, oil-proof and sterilized.

Because it is translucent paper, sulfuric acid paper is often used as a ring lining or lining paper for books in modern design, which can better highlight and contrast the theme and conform to the modern trend. Sometimes it is also used as the title page of books or picture books. Printing gold, silver or graphics on sulfuric acid paper is unique and is generally used in high-grade picture books.

Put it on the front page to make the inner page of the book look softer, and it can also absorb the uncomfortable taste of ink brought by printing. ...