Lapho uthengaama-slippers nezinye izinhlobo zezicathulo,njengezimbadada noma ama-clogs, omunye wemibuzo evame kakhululokhoabantu kungenzeka ukubuza kumayelanaimpahla-ngokukhethekile, yini i-Eva? I-EVA soli iyisoli yesicathulo enezinzuzo eziningi eziyenza ibe yisisekelo esihle se-si-lippers.Kalula nje, i-EVA sole iyisicathulo sodwa sepulasitiki esingaba lula futhi siguquguquke kunerabha.Lokhu kungaphezulu nje kokuthi lezi zinto ziyini nokuthi izinzuzo zazo ze-EVA sizindebeizi.
I-EVA, uma sikhuluma ngamakhemikhali, i-Ethylene-Vinyl Acetate, i-elastic co-polymer efana kakhulu nenjoloba futhi isetshenziswa nasezintweni zasendlini nezimboni.I-EVA ibhekwa njengobungani bemvelo ngoba ayikwenzi't sebenzisa i-chlorine ekukhiqizeni kwayo, futhi ingagaywa kabusha ibe yimikhiqizo efana nezinkundla zokudlala noma omata bezimboni.Ngenxa yokuthi yenziwe ngabantu futhi ihambisana nezilwane, ivame ukusetshenziswa ezicathulweni ze-vegan.I-EVA inikeza umcamelo, intwasahlobo (i-rebound), futhi imelana nokuqina nokuqhekeka.Iphinde imelane nemisebe ye-UV, ayikwenzi't ukumunca amanzi, futhi uhlale uvumelana nezimo emakhazeni, konke lokhu okwenza kube usizo kakhulu ezicathulweni zangaphandle.Ithambile futhi iguquguquka, i-EVA ngokobuchwepheshe iyigwebu esikhundleni senjoloba, njengoba yakhiwa ngokunwetshwa kwepulasitiki kanye nokubamba amaphakethe egesi (umoya) ngokuminyana okuhlukahlukene.Iningi eligijimayo nesicathulo esijwayelekilengaphandleamasoli enziwe nge-Eva.Eminyakeni yamuva nje, amabhrendi ambalwa aphendukele ku-PU (i-polyurethane) ukuze akhe okuhlala isikhathi esidengaphandleubuchwepheshe bodwa, ikakhulukazi kumabhuzu ojosaka.Kepha i-EVA isatholakele inokuphinda ibuyele emuva, ngenkathi ifinyelela ukuphela kwayo (ukucindezela) ngokushesha kune-PU.Wena'ngizobona izinhlobo eziningi ezisebenzayo zisebenzisa inhlanganisela yobunikazi yezinhlanganisela zenjoloba ezihlanganiswe ne-EVA.Futhi ngenkathi imakethe yezicathulo ezigijimayo isungula ngempela i-EVA midsole, manje isisetshenziswa kabanzi cishe kuzo zonke izinhlobo zezicathulo, kuhlanganise, uma kungenjalo, izimbadada.I-EVA soli ayihlinzeki nje ngokuphindisela emuva kanye nomcamelo oshiwo ngenhla, kodwa ivikela izinyawo ekuthintekeni njengoba unyawo ngalunye lushaya phansi.I-rebound ku-Eva ikusiza ukuthi uphume emgaqweni ngamunye.Kepha njengazo zonke izinto ezinhle, i-EVA iyaphela.Ngokuhamba kwesikhathi, i-EVA izocindezela futhi ikhulule i-rebound yayo, ngaleso sikhathi kufanele ishintshwe.Esicathulweni esigijimayo, kuthatha amakhilomitha angaba ngu-300 ukufika kuleli phuzu.Kwezinye izicathulo, Lokhu kuvame ukwenzeka lapho icindezela, ilahlekelwe ukubopha kwayo kabusha, futhi ekugcineni ifinyelele lapho kufanele ishintshwe khona, ngokuvamile ngemva kwamamayela angu-300 esicathulweni esigijimayo.Lokhu kuyahlukahluka ngokwendlela onzima ngayo umsebenzisi, ukuhamba kwakhe nokuthi hlobo luni lwamamayela alufaka esicathulweni.Ama-midsoles e-EVA ngokuvamile abunjwa ngomjovo.Ukuze bazuze ukuqina okwengeziwe, abakhi bezicathulo abaningi basebenzisa ama-EVA midsoles abunjwe ngokucindezelwa.Kule nqubo, i-EVA icindezelwa esikhunjeni ukuze i-midsole-to-be yakhe isikhumba sangaphandle esiqinile.Lokhu kwengeza impilo ku-midsole, isakhiwo se-torsional, futhi kuvumela ukuhlotshiswa okufana nemibala, imiklamo namalogo.Besebenzisa i-EVA, abakhiqizi bangakwazi futhi ukudala ubukhulu obuhlukahlukene kanye nokuminyana, bengeze umcamelo owengeziwe ngaphansi kwesithende, ungqimba oluthambile ngaphezulu kongqimba oluqinile, nalokho okubizwa ngokuthi.“ukuthumela”ukuvimbela ukubizwa konyawo ngesikhathi sokuhamba nokugijima.Ekupheleni kosuku, vele wazi ukuthi i-EVA yileso singqimba esithambile, esine-squishy phakathi kwengaphezulu nesingaphandle sesicathulo sakho esikhona sikuvikela futhi wengeze intwasahlobo encane esinyathelweni sakho.
Isikhathi sokuthumela: Oct-12-2021