Iphepha le-Thermal liyiphepha elisetshenziswe kabanzi ngamakhemikhali aguqula umbala lapho ufudumeza. Isetshenziselwa kakhulu amarisidi, amathikithi, amalebula, nezinye izinhlelo zokusebenza ezidinga ukuphrinta okusheshayo ngaphandle kwesidingo se-ink noma i-toner. Ngenkathi iphepha elishisayo linikeza lula futhi lisebenze kahle, umthelela wayo wezemvelo uphakamise ukukhathazeka ngenxa yamakhemikhali asetshenziswa ekukhiqizweni kwawo kanye nezinselelo ezihambisana nokulahlwa kwawo.
Enye yezinkinga ezinkulu zemvelo ezihambisana nephepha elishisayo ukusetshenziswa kweBisphenol A (BPA) kwi-coating. I-BPA iyikhemikhali elixhumene nezinkinga ezahlukahlukene zempilo, futhi ukuba khona kwalo ephepheni elishisayo kuphakamisa ukukhathazeka ngokuchayeka kubantu nasendaweni yemvelo. Lapho iphepha lokushisa lisetshenziswa ngamaresidi nakweminye imikhiqizo, i-BPA ingadlulisela esikhunjeni ngesikhathi sokuphatha nokungcolisa ukusakazwa kabusha kwemithombo uma kungaxazululwa kahle.
Ngaphezu kwe-BPA, ukukhiqizwa kwephepha le-thermal kubandakanya ukusetshenziswa kwamanye amakhemikhali nezinto zokwakha ezingaba nomthelela ongemuhle emvelweni. Inqubo yokukhiqiza ingaholela ekukhishweni kwezinto eziyingozi emoyeni nasemanzini, zibangela ukungcoliswa kanye nokulimala okungaba yingozi ku-ecosystems. Ngokwengeziwe, kunezinselelo ekusingatheni iphepha elishisayo ngenxa yokuba khona kwamakhemikhali ku-coating, okwenza ukuphinda usebenzise kabusha noma ukuhlanganisa kube nzima.
Uma iphepha elishisayo lingapheli kahle, lingagcina ekulahlekelweni komhlaba, lapho amakhemikhali enhlanganisweni angalanda inhlabathi nangamanzi, abeke ubungozi emvelweni futhi ethinta impilo yasendle kanye nempilo yabantu. Ngokwengeziwe, ukuvumela kabusha kwephepha le-thermal kuyinkimbinkimbi ngokuba khona kwe-BPA namanye amakhemikhali, okwenza kube mancane amathuba okuvuselelwa kunezinye izinhlobo zephepha.
Ukubhekana nomthelela wezemvelo wephepha elishisayo, kunezinyathelo eziningana ongazithatha. Enye indlela yokwenza lokhu ukunciphisa ukusetshenziswa kwephepha elishisayo ngokukhetha amarisidi kagesi kanye nemibhalo yedijithali noma nini lapho kungenzeka. Lokhu kusiza ukunciphisa isidingo sephepha elishisayo futhi kunciphise umthelela ohambisana nemvelo. Ngokwengeziwe, kungenzeka ukuthi kwenziwa imizamo ukuthuthukisa ezinye izimbangi zephepha elishisayo elingenawo amakhemikhali ayingozi, ukuzenza baphephe ngokusetshenziswa komuntu kanye nemvelo.
Ngaphezu kwalokho, ukulahlwa okufanele kanye nokuphinda usebenzise kabusha kwephepha elishisayo kubalulekile ekunciphiseni umthelela wayo emvelweni. Amabhizinisi nabathengi bangathatha izinyathelo zokuqinisekisa ukuthi iphepha elishisayo lilahlwa ngendlela enciphisa ukulimala kwalo okubangelwa yimvelo. Lokhu kungafaka ukuhlukanisa iphepha elishisayo kusuka kweminye imisakazo yokungcola nokusebenza ngezinsiza zokuphinda usebenzise kabusha ezinamandla okuphatha iphepha elishisayo namakhemikhali ahlobene nawo.
Ngamafuphi, ngenkathi iphepha lokushisa linikeza lula futhi lisebenzise izicelo ezahlukahlukene, umthelela wawo emvelweni awunakunakwa. Ukusetshenziswa kwamakhemikhali afana ne-BPA ekukhiqizweni kwayo kanye nezinselelo ezihambisana nokulahlwa kwayo kuphakamise ukukhathazeka ngokulimala kwalo okungaba yingozi emvelweni. Umthelela wezemvelo wephepha elishisayo angancishiswa ngokunciphisa ukusetshenziswa kwawo, ukuthuthukisa ezinye izindlela eziphephile, futhi asebenzise izindlela ezifanele zokulahla kanye nokuphinda asebenzise kabusha.
Isikhathi sePosi: Mar-16-2024