Ukuphepha kokupakishwa kokudla

Okuqukethwe okujwayelekile kokuhlanzeka kokupakisha ukudla akuphelele

(1) Izinto zokupakisha ukudla okunempilo azinazo izinga elihlanganisiwe okwamanje, ukusebenza okuhlanganisiwe, okujwayelekile kwezinto zokupakisha ukudla okunempilo, futhi kuphela enanini elincane lemikhiqizo emithethweni ejwayelekile, njengokupakisha okuguquguqukayo kwefilimu ye-GB/T10004 kanye ne-ndash; 2008 ukupakisha ipulasitiki ehlanganisiwe, isikhwama, i-dry compound extrusion compound, 'izinkomba ze-solvent residue ezimisweni ezifanele.

（2) Iningi lezindinganiso zokuhlanzeka zezinto zokupakisha ukudla azisebenzi njengamanje izinhlobo eziningi zokupakisha ukudla. Ukuze kutholakale izinsalela ze-solvent, amazwe ahlukene asebenzisa izinhloso zezinhlinzeko zawo. Ku-GB/T10004 & ndash; 2008 ukupakisha ipulasitiki ehlanganisiwe ifilimu, isikhwama, inhlanganisela eyomile ye-extrusion compound, 'izinhlinzeko eziyinhloko enanini elijwayelekile le-solvent residue alingaphezu kuka-5 mg/m2, kodwa azizange zichaze ukuthi hlobo luni lwe-solvent, olusebangeni lika-5 mg/m2 zonke izinhlobo zenani le-solvent nazo azenzi ukuhlukaniswa okuningiliziwe. Izinga lezempilo likazwelonke livimbela futhi ukusebenzisa ipulasitiki elahliwe njengokukhiqiza izinto zokusetshenziswa kwezitsha zokudla zepulasitiki. Kodwa futhi kukhona ukufihla okukhulu komonakalo, wenziwe ngezinto zokusetshenziswa zezimboni izitsha zokudla zepulasitiki. Ukuze umkhawulo wesilinganiso sezinga lepulasitiki esitsheni ukhululeke kakhulu, ikomidi lezinga likazwelonke lisebenza njengamanje ukuze libuyekeze futhi lithuthukise umsebenzi ojwayelekile.

(3) Iningi lezindinganiso zomkhiqizo wezinto zokupakisha aziyona nje ingxenye yesidingo sokuthola izinsalela ze-solvent. Incazelo ejwayelekile yezinye izinkomba ezilula zezinzwa, njengezinto zokupakisha akufanele zibe nephunga elingavamile, ukupakisha uketshezi olucwilisayo akunakuba nephunga elingavamile, njll., kodwa azikho izinkomba ezithile zobuningi ezibekwa phambili. Kukhona izinyibilikisi ezisele enkambisweni yokukhiqiza kanye nezingenakugwenywa. Ekuphrintiweni kwe-gravure, izinto ezihlanganisiwe zepulasitiki kanye nenqubo ye-solvent eyomile, kudingeka kusetshenziswe izinyibilikisi eziningi eziphilayo njenge-toluene, i-ethyl acetate kanye ne-ethyl ketone, njll., ngokuhambisana nezidingo zenqubo ye-solvent enkambisweni yokukhiqiza kufanele ziphele, kodwa ngezizathu ezahlukahlukene ekukhiqizweni kwangempela kuzohlala kukhona okungaphezu noma okuncane okungeyona i-solvent eguquguqukayo ngokuphelele, eyaziwa ngokuthi izinyibilikisi ezisele. Izinyibilikisi ezisele ziyinhlanganisela yezinhlobo eziningana zezinyibilikisi, ngokuvamile lapho okuqukethwe kwezinyibilikisi ezisele kungaphansi kwenani elithile lomkhawulo umuzwa womuntu wokuhogela awukwazi ukuzwa ukuthi ukhona, kodwa izinsalela eziphezulu zezinyibilikisi abantu bangaziqonda. Njenge-PVC (PVC), ukugoqwa kwepulasitiki komdlavuza kubangele imiphumela enamandla ekhaya. "GB9681— I-1988 yokupakisha ukudla kwe-PVC yokubumba umkhiqizo ojwayelekile 'ngokuhlinzekwa okuthile, okuqukethwe kwe-vinyl chloride monomer kungaphansi noma kulingana ne-1 mg ngekhilogramu. Ukwakheka kwe-vinyl chloride monomer kuqukethwe kwifilimu ye-PVC yokunamathela, ngemuva kokuthi inegalelo emzimbeni womuntu ekubeni nomdlavuza. I-European Union kanye ne-United States, eJapan, bavimbele lo mkhiqizo osetshenziselwa ukudla. Kubuyekezwe izikhathi eziningana, kodwa ikakhulukazi ukwenza ezinye zalezi zinhlaka zishintshe. "Imicimbi yefilimu yokunamathela kanye nayo yonke indawo; Kwaphinde kwavezwa amazinga afanele ezwe lethu akhiphe ukulibaziseka komsebenzi. Ngakho-ke izinto zokupakisha ukudla ukuze kutholakale izinsalela ze-solvent ukuthuthukisa inkomba yobuningi kubalulekile.