Uya kumangaliswa kukuba iingxowa zenkunkuma zisetyenziswa ngokubanzi kuwo wonke umhlaba kwaye azintsha.Iiplastiki eziluhlaza ozibona yonke imihla zenziwe ngepolyethylene.Zenziwa ngo-1950 nguHarry Washrik kunye neqabane lakhe, uLarry Hansen.Bobabini abaqambi bavela eCanada.
Kwenzeka ntoni phambi kwengxowa yenkunkuma?
Ngaphambi kokuba iingxowa zenkunkuma zisasazwe, abantu abaninzi babeyingcwaba ebaleni.Abanye abantu batshisa inkunkuma.Kungekudala emva koko, baqonda ukuba ukutshisa nokungcwaba kwakuyingozi kwindalo esingqongileyo.Iingxowa zenkunkuma zinceda abantu ukuba bajongane nenkunkuma kakuhle.
Iingxowa zenkunkuma zakuqala
Ekuqaleni, iingxowa zenkunkuma zazisetyenziselwa iinjongo zorhwebo.Ekuqaleni bezisetyenziswa kwisibhedlele saseWinnipeg.UHansen wasebenza kwi-union carbide, eyathenga ukuveliswa kubo.Inkampani yenza iingxowa zokuqala zenkunkuma eziluhlaza kwiminyaka yoo-1960 kwaye yazibiza ngokuba ziingxowa zenkunkuma zasekhaya.
Ukuveliswa ngokukhawuleza kwabangela ukuvakalelwa kwaye kwasetyenziswa kumashishini amaninzi kunye neentsapho.Ekugqibeleni, yaba yimveliso eyaziwayo.
Ingxowa yokutsala
Ngowe-1984, imbali yeengxowa zenkunkuma yangena kwiimarike, okwenza kube lula ukuba abantu baphathe iingxowa ezigcweleyo.Umtya wokuqala wenziwa ngeplastiki yoxinaniso oluphezulu.Ezi ngxowa zomelele kwaye zinendlela eyomeleleyo yokuvala.Kodwa ezi bhegi zibiza kakhulu.Iingxowa zokutsala zithandwa ekhaya kwaye kulula ukuziphatha, ngoko ke ndazithenga ngentlawulo eyongezelelweyo.
Ubungane bendalo yeengxowa ze-polyethylene zenkunkuma ziphikisana.Ngowe-1971, uGqr. James Gillett wayila iplastiki egqabhuka elangeni.Ngokuqulunqwa, sinokusebenzisa iingxowa zeplastiki kwaye sime kwicala lokukhusela indalo.Iingxowa ze-Biodegradable sele zikhona kwimarike kule mihla kwaye zisetyenziswa ngabantu abaninzi.
Ixesha lokuposa: Apr-16-2021