Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Nzira yokutanga yakabudirira yakagadzirwa muna 1894 nomukemikari wechiNgezi Charles Frederick Cross, uye vashandi vake Edward John Bevan naClayton Beadle. Vakatumidza faibha racho kuti "viscose", nokuti kugadzirwa kwecarbon disulfide necellulose mumamiriro ezvinhu okutanga kwakapa mushonga une viscous zvikuru wexanthate. Viscose rayon yokutanga kutengeswa yakabudiswa nekambani yokuUnited Kingdom inonzi Courtaulds muna 1905. Zita rokuti "rayon" rakagamuchirwa muna 1924, ne"viscose" ichishandiswa nokuda kweiyo viscous organic liquid inoshandiswa kugadzira zvose zviri zviviri rayon uye cellophane. Chinhu chakafanana chinozivikanwa secellulose acetate chakawanwa muna 1865. Rayon uye acetate zvose zviri zviviri micheka yokunyepedzera, asi kwete chaizvoizvo inogadzirwa, ichiitwa kubva muhuni. Nylon, iyo yokutanga micheka yokunyepedzera mupfungwa ye"yakanyatsogadzirwa" yeshoko iroro, yakagadzirwa naWallace Carothers, mutsvakurudzi weAmerica pakambani yemakemikari DuPont muma1930. Yakakurumidza kutanga kuzivikanwa muUnited States senzira yokutsiva nayo sirika, panguva chaiyo yokugoverwa kwezvokudya munguva yeHondo Yenyika II. Kushandiswa kwaro kutsva semucheka wamasokisi evakadzi kwakapfuura kushandiswa kwakarovedzeka, kwakadai sokutsiva sirika iri mumaparachuti nokumwe kushandiswa kwechiuto kwakafanana netambo.  Mubvunzo: Nylon yakatanga kushandiswa sechinotsiva zvinhu zvipi?
sirika