Ama-amino resin tanning agents amelwe ikakhulukazi i-melamine ne-dicyandiamide, ayimbangela eyinhloko yokukhiqizwa kwe-formaldehyde yamahhala enqubweni yokwenziwa kwesikhumba kanye nokuphuma njalo kwe-formaldehyde ezihlokweni zesikhumba. Ngakho-ke uma imikhiqizo ye-amino resin kanye nemithelela yamahhala ye-formaldehyde eza nayo ingalawuleka ngokugcwele, idatha yokuhlola yamahhala ye-formaldehyde nayo ingalawulwa ngempumelelo. Singasho ukuthi imikhiqizo yochungechunge lwe-amino resin iyisici esiyinhloko sembangela yezinkinga zamahhala ze-formaldehyde ngesikhathi senqubo yokwenza isikhumba.
Isinqumo besenza imizamo yokukhiqiza ama-amino resins aphansi e-formaldehyde kanye nama-amino resins angenayo i-formaldehyde. Ukulungiswa maqondana nezici zokuqukethwe kwe-formaldehyde nokusebenza kwama-ejenti okushuka kwenziwa njalo.
Ngokuqoqwa kwesikhathi eside kolwazi, isipiliyoni, ukusungula izinto ezintsha, ucwaningo kanye nentuthuko. Njengamanje, isakhiwo sethu somkhiqizo we-formaldehyde sesiphelele uma kuqhathaniswa. Imikhiqizo yethu ibilokhu ithola imiphumela efiselekayo, kokubili mayelana nokuhlangabezana nesidingo se-'zero formaldehyde' kanye nokucebisa nokwenza ngcono ukusebenza kwama-ejenti okushuka.
Isiza ukukhiqiza okusanhlamvu okuhle nokucacile ngombala ogqamile
Isiza ukukhiqiza okusanhlamvu okugcwele nokuqinile
Nikeza ukugcwala, ukuthamba nokuqina kwesikhumba
Inikeza okusanhlamvu okuqinile futhi okuhle kakhulu ngempahla enkulu yokudaya.
Inikeza okusanhlamvu okuqinile nokuqinile
Njengebhizinisi elinesibopho sizokuthwala lokhu njengesibopho sethu futhi sisebenze ngokuphikelela nangokungavimbeli sifinyelele umgomo wokugcina.
Hlola okwengeziwe