衛生紙
Among the earliest known uses of paper was padding and wrapping delicate bronze mirrors according to archaeological evidence dating to the reign of Emperor Wu of Han from the 2nd century BCE. Padding doubled as both protection for the object as well as the user in cases where poisonous "medicine" were involved, as mentioned in the official history of the period. Although paper was used for writing by the 3rd century CE, paper continued to be used for wrapping (and other) purposes. Toilet paper was used in China from around the late 6th century. In 589, the Chinese scholar-official Yan Zhitui (531–591) wrote: "Paper on which there are quotations or commentaries from Five Classics or the names of sages, I dare not use for toilet purposes". An Arab traveler who visited China wrote of the curious Chinese tradition of toilet paper in 851, writing: "... [the Chinese] do not wash themselves with water when they have done their necessities; but they only wipe themselves with paper".