Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  Passage: Ko te tukanga angitu tuatahi i whakawhanakehia i te 1894 e te kaimatai Ingarihi a Charles Frederick Cross, me ana hoa mahi a Edward John Bevan me Clayton Beadle. I tapaina e rātau te muka ko "viscose", nā te mea ko te hua o te tauhohenga o te waro disulfide me te pūtau i roto i ngā āhuatanga taketake i homai he rongoā tino pākiki o te xanthate. Ko te rayon viscose tuatahi i hangaia e te kamupene UK a Courtaulds i te tau 1905. I whakaaetia te ingoa "rayon" i te tau 1924, me te "viscose" e whakamahia ana mo te waikawa waikawa waikawa e whakamahia ana hei hanga i te rayon me te cellophane. I kitea tētahi hua ōrite e mōhiotia ana ko te acetate cellulose i te tau 1865. Ko te Rayon me te acetate he muka horihori, engari ehara i te mea waihanga pono, i hangaia mai i te rakau. Ko te Nylon, te muka waihanga tuatahi i roto i te tikanga "katoa waihanga" o taua kupu, i whakawhanakehia e Wallace Carothers, he kairangahau Amerika i te kamupene matū DuPont i nga tau 1930. Kaore i roa ka puta i te United States hei whakakapi mo te hiraka, i te wa tika mo te whakaurunga o te rational i te Pakanga Tuarua o te Ao. Ko tana whakamahinga hou hei rauemi mo nga koti a nga waahine i nui ake nga whakamahinga whaihua, penei i te whakakapi mo te hiraka i roto i nga parachute me etahi atu whakamahinga hoia penei i nga taura.  Pātai: I tīmataria te nairona hei whakakapi mō tehea rauemi?
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