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A paper cup is a cup made out of paper and often lined with plastic or wax to prevent liquid from leaking out or soaking through the paper.〔(【引用サイトリンク】title=Takeaway Cups For Hot Drinks )〕〔Kennedy, Garry: (Dixie Cup ) entry, Apollo Glossary, NASA. Retrieved 2012-02-06.〕〔(【引用サイトリンク】title=Paper Products & Dispensers )〕 It may be made of recycled paper and is widely used around the world. ==History== Paper cups have been documented in imperial China, where paper was invented by 2nd century BC. Paper cups were known as ''chih pei'' and were used for the serving of tea.〔 They were constructed in different sizes and colors, and were adorned with decorative designs. Textual evidence of paper cups appears in a description of the possessions of the Yu family, from the city of Hangzhou. The modern paper cup was developed in the 20th century. In the early 20th century, it was common to have shared glasses or dippers at water sources such as school faucets or water barrels in trains. This shared use caused public health concerns. One notable investigation into their use was the study by Alvin Davison, biology professor at Lafayette College, published with the sensational title "Death in School Drinking Cups" in ''Technical World Magazine'' in August 1908, based on research carried out in Easton, Pennsylvania's public schools. The article was reprinted and distributed by the Massachusetts State Board of Health in November 1909.〔(【引用サイトリンク】title=Dixie Cup Company History )〕 Based on these concerns, and as paper goods (especially after the 1908 invention of the Dixie Cup) became cheaply and cleanly available, local bans were passed on the shared-use cup. One of the first railway companies to use disposable paper cups was the Lackawanna Railroad, which began using them in 1909. By 1917, the public glass had disappeared from railway carriages, replaced by paper cups even in jurisdictions where public glasses had yet to be banned. Paper cups are also employed in hospitals for health reasons. In 1942 the Massachusetts State College found in one study that the cost of using washable glasses, re-used after being sanitized, was 1.6 times the cost of using single-service paper cups. These studies, as well as the reduction in the risk of cross-infection, encouraged the use of paper cups in hospitals. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「paper cup」の詳細全文を読む スポンサード リンク
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