Gw mau tau Sajarah dari Gelas kertas. Jelasin dalam bahasa sunda

Gelas kertas geus kacatet ti keur mangsa kakaisaran Cina, nu mana kertas kapanggih dina abad ka-2 SM. Gelas kertas dipikawanoh minangka chih pei jeung dipakéna téh pikeun nyicikeun ci entéh. Ieu gelas téh dijieun dina rupa-rupa ukurang jeung warna-warni, sarta dihias ku desain dékoratif. Bukti tékstual gelas kertas bijil dina déskripsi ngeunaan harta milik kulawarga Yu, ti kota Hangzhou.

Gelas kertas modérn dikembangkeun dina abad ka-20. Awal abad ka-20 geus guyub pikeun silih babagi cai tina sumber cai keran di sekolah atawa di tong cai dina karéta api. Pamakéan babarengan kieu téh nyumebabkeun masalah kaséhatan masarakat. Salah sahiji hal nu disidik-sidik téh nu pentingna mah nyaéta hasil studi ku Alvin Davison, profesor biologi di Lafayette College, nu dipedal kalawan judul "Death in School Drinking Cups" di Majalah Technical World dina bulan Agustus 1908, dumasar panalungtikan nu dipilampahna di éaston, di sakola umum Pennsylvania. Éta artikel dicitak deui jeung didistribusikeun ku Massachusetts State Board of Héalth dina bulan Nopémber 1909.

Based on these concerns, and as paper goods (especially after the 1908 invention of the Dixie Cup) became chéaply and cléanly 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 disappéared 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 héalth réasons. 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.