Okwamanje,izinto zokupakisha zezimonyo ezingaboliisetshenziselwe ukupakisha okuqinile kokhilimu, izindebe zomlomo nezinye izimonyo. Ngenxa yobuchwepheshe bezimonyo ngokwayo, akudingi nje ukuba nokubukeka okuyingqayizivele, kodwa futhi kudinga ukuba nephakheji ehlangabezana nemisebenzi yayo ekhethekile.
Isibonelo, ukungazinzi okungokwemvelo kwezinto zokusetshenziswa zezimonyo kusondele kulokho kudla. Ngakho-ke, ukupakishwa kwezimonyo kudinga ukuhlinzeka ngezakhiwo zesithiyo ezisebenza kahle ngenkathi kugcinwa izici zezimonyo. Ngakolunye uhlangothi, kuyadingeka ukuhlukanisa ngokuphelele ukukhanya nomoya, ugweme i-oxidation yomkhiqizo, futhi uhlukanise amabhaktheriya namanye ama-microorganisms ekungeneni komkhiqizo. Ngakolunye uhlangothi, kufanele futhi kuvimbele izithako ezisebenzayo ezimonyoni ukuthi zingakhangiswa ngezinto zokupakisha noma zisabele nazo ngesikhathi sokugcina, okuzothinta ukuphepha nekhwalithi yezimonyo.
Ngaphezu kwalokho, ukupakishwa kwezimonyo kunezidingo eziphakeme zokuphepha zezinto eziphilayo, ngoba ezithasiselweni zokupakishwa kwezimonyo, ezinye izinto eziyingozi zingase zihlakazwe yizimonyo, ngaleyo ndlela kubangele izimonyo ukuthi zingcoliswe.
Izinto zokupakisha ze-biodegradable cosmetic:
Impahla ye-PLAinokucutshungulwa kahle kanye nokuvumelana kwe-biocompatibility, futhi okwamanje iyisisetshenziswa esikhulu sokupakisha esibolayo sezimonyo. Impahla ye-PLA inokuqina okuhle kanye nokumelana nomshini, okwenza kube into enhle yokupakishwa kwezimonyo eziqinile.
I-Cellulose kanye nokuphuma kwayoama-polysaccharides asetshenziswa kakhulu ekukhiqizeni ukupakisha futhi angama-polymer emvelo amaningi kakhulu emhlabeni. Iqukethe amayunithi e-glucose monomer axhunywe ndawonye ngamabhondi e-B-1,4 glycosidic, avumela amaketanga e-cellulose akhe amabhondi e-hydrogen e-interchain aqinile. Ukupakishwa kwe-cellulose kulungele ukugcinwa kwezimonyo ezomile ezingenayo i-hygroscopic.
Izinto zesitashiama-polysaccharides akhiwe i-amylose ne-amylopectin, etholakala ikakhulukazi kokusanhlamvu, umdumbula namazambane. Izinto ezitholakala ngokudayisa ezinesitashi zihlanganisa ingxube yesitashi namanye ama-polymer, njenge-polyvinyl alcohol noma i-polycaprolactone. Lezi zinto ze-thermoplastic ezisekelwe isitashi zisetshenziswe ezinhlobonhlobo zezinhlelo zokusebenza zezimboni futhi zingahlangabezana nemibandela yokufakwa kwe-extrusion, ukubunjwa komjovo, ukubunjwa kokushaywa, ukuvunguza kwefilimu kanye nokukhipha amagwebu kokupakishwa kwezimonyo. Ifanele amaphakheji e-non-hygroscopic yezimonyo ezomile.
I-Chitosaninamandla njengempahla yokupakisha ebolayo yezimonyo ngenxa yomsebenzi wayo wokulwa namagciwane. I-Chitosan iyi-polysaccharide ye-cationic etholakala ku-deacetylation ye-chitin, etholakala kumagobolondo e-crustacean noma i-fungal hyphae. I-Chitosan ingasetshenziswa njengendlela yokwemboza kumafilimu e-PLA ukuze kukhiqizwe ukupakishwa okuguquguqukayo okubili okubolayo kanye ne-antioxidant.
Isikhathi sokuthumela: Jul-14-2023
