Kana uchitengaslippers nemamwe marudzi eshangu,seshangu kana machira, mumwe wemibvunzo yakajairikakutivanhu Chivabvu kubvunza nezvezvinhu-kunyanya, chii chinonzi EVA? EVA sole ishangu sole ine akawanda mabhenefiti inoita kuti ive hwaro hwakakodzera hweslippers.Zvichitaurwa zviri nyore, EVA sole ipurasitiki shangu sole inogona kuve yakareruka uye inochinjika kupfuura rabha.Iyi ingori pamusoro pezvipi izvi soles uye kuti mabhenefiti eEVA slippvari.
EVA, kutaura kwemakemikari, ndeye Ethylene-Vinyl Acetate, elastic co-polymer yakafanana nerabha uye inoshandiswawo mudzimba uye mumaindasitiri kunyorera.EVA inoonekwa seine hushamwari kwezvakatipoteredza mukuti haina't kushandisa chlorine mukugadzirwa kwayo, uye inogona kudzokororwa kuita zvigadzirwa zvakaita senhandare dzekutamba kana meti dzeindasitiri.Nemhaka yokuti yakagadzirwa nevanhu uye ine ushamwari hwemhuka, inowanzoshandiswa mune shangu dzevegan.EVA inopa cushion, chitubu (rebound), uye inoshingirira kuomesa uye kuputika.Iyo zvakare inopikisa UV mwaranzi, haina't inosveta mvura, uye inogara ichichinjika mukutonhora, zvese izvi zvinoita kuti zvive zvakakosha kune shangu dzekunze.Yakapfava uye inochinjika, EVA ifuro tekinoroji pachinzvimbo cherabha, sezvo ichiumbwa nekuwedzera epurasitiki uye kuteya homwe dzegasi (mhepo) muhudhinha hwakasiyana.Yakawanda inomhanya uye yakasununguka shangukunzemasosi anogadzirwa kubva kuEva.Mumakore achangopfuura, mhando shoma dzakatendeukira kuPU (polyurethane) kuti dzivake dzakasimbakunzetekinoroji chete, kunyanya mumajombo ekumashure.Asi EVA ichiri kuwanikwa iine yakawanda rebound, ichisvika kumagumo-hupenyu (kumanikidza) nekukurumidza kupfuura PU.Iwe'Ndichaona mabhureki mazhinji anoshandisa musanganiswa werubha wakasanganiswa neEva.Uye nepo misika yeshangu inomhanya yakanyatso gadzira iyo EVA midsole, ikozvino inoshandiswa zvakanyanya munenge marudzi ese eshangu, kusanganisira, kana kwete kunyanya, shangu.Iyo EVA sole haingopi iyo yambotaurwa rebound uye cushion, asi inodzivirira tsoka kubva pakukanganisa sezvo tsoka yega yega inorova pasi.Iyo rebound muEva inokubatsira kubuda kubva pane imwe neimwe nhanho.Asi sezvinhu zvese zvakanaka, EVA inopera.Nekufamba kwenguva, EVA inomanikidza uye kusunungura rebound yayo, panguva iyo inofanirwa kutsiviwa.Pashangu inomhanya, zvinotora anenge mamaira mazana matatu kusvika panzvimbo iyi.Pane dzimwe shangu, Izvi zvinowanzoitika painomanikidzana, yorasikirwa nekudzoka kwayo, uye pakupedzisira inosvika painozofanira kutsiviwa, kazhinji mushure memakiromita mazana matatu pabhutsu inomhanya.Izvi zvinosiyana zvechokwadi nekuremerwa kwemushandisi, kufamba kwavo uye rudzi rwemakiromita avanoisa shangu.EVA midsoles anowanzo kuumbwa jekiseni.Kuti uwane kusimba kwakanyanya, vazhinji vanogadzira shangu vanoshandisa compression-yakaumbwa EVA midsoles.Mukuita uku, EVA inodzvinyirirwa muforoma kuitira kuti midsole-kuva-inoumba ganda rekunze gobvu.Izvi zvinowedzera hupenyu kune iyo midsole, torsional chimiro, uye inobvumira embellishment senge mavara, magadzirirwo uye logos.Kushandisa EVA, vagadziri vanogonawo kugadzira hukobvu hwakasiyana-siyana uye density, vachiwedzera imwe cushion pasi pechitsitsinho, chinyoro chakapfava pamusoro pechidzitiro chakaoma, uye chinonzi“kutumira”kudzivirira kududzirwa kwetsoka panguva yekufamba uye kumhanya.Pakupera kwezuva, ingoziva kuti EVA ndiyo iyo yakapfava, squishy layer pakati pepamusoro nekunze kweshangu yako iripo inokudzivirira uye kuwedzera chitubu chidiki padanho rako.
Nguva yekutumira: Oct-12-2021