Sandpaper yog xav tias tau tsim nyob rau hauv thirteenth Tuam Tshoj, los ntawm cov khoom crushed, feem ntau plhaub los yog xuab zeb, uas yog glued rau parchment nrog ntuj pos hniav. Nyob rau xyoo 1800, cov khoom zoo sib xws hu ua "iav ntawv" yog tsim los ntawm cov iav crushed, uas, txawm tias nws lub npe, qee zaum tseem siv rau hauv cov ntawv xuab zeb niaj hnub no.
Lawv siv dab tsi ua ntej ntawv xuab zeb?
Ua ntej nws qhia, cov neeg ua haujlwm ntoo tau tso siab rau qhov kev txawj ntse nrog lub dav hlau thiab scraperlos ua kom du, tiaj tus. Thaum xav tau abrasives, lwm yam ntuj tsim muaj, xws li cattails (siv los ntawm turners), nplua xuab zeb, thiab rottenstone (lub mos, decomposed limestone).
Thaum twg cov ntawv xuab zeb tau tsim ua ntej?
Thawj qhov piv txwv ntawm cov ntawv xuab zeb yog nyob rau hauv 13-xyoo pua Tuam Tshojthaum crushed shells, noob, thiab xuab zeb raug khi rau parchment siv cov pos hniav ntuj.
Leej twg ua cov ntawv xuab zeb?
Francis Okie, 95, Tsim Sandpaper los hloov Razor.
Leej twg tsim cov ntawv xuab zeb tsis muaj dej?
Sandpaper txawm siv los ua suab paj nruag, hauv Leroy Anderson's Sandpaper Ballet. Xyoo 1916 3M [Minnesota Mining thiab Manufacturing Corp.]tau tsim cov ntawv xuab zeb tsis muaj dej, paub tias ntub lossis qhuav, nrog nws thawj daim ntawv thov:-- automotive xim refinishing.
