Ana kiran fatar PU da polyurethane, wadda aka yi da kayan polyurethane. Fata ta Pu fata ce ta gama gari, wadda ake amfani da ita sosai a fannoni daban-daban na masana'antu, kamar tufafi, takalma, kayan daki, kayan ciki na motoci da kayan haɗi, marufi da sauran masana'antu.
Saboda haka, fata ta Pu tana da matuƙar muhimmanci a kasuwar fata.
Daga tsarin samarwa da kuma manufar kare muhalli, an raba fatar PU zuwa nau'ikan fata guda biyu da aka sake yin amfani da su da kuma fata ta gargajiya ta PU.
Menene bambanci tsakanin nau'ikan fata guda biyu?
Bari mu fara duba bambance-bambancen da ke cikin tsarin samar da su.
Tsarin samar da fata na gargajiya na PU:
1. Mataki na farko a samar da fata ta pu shine yin polyurethane, kuma ana yin isocyanate (ko polyol) da polyether, polyester da sauran kayan da aka yi amfani da su wajen yin resin polyurethane ta hanyar sinadaran da ke cikinsa.
2. A shafa wa substrate, resin polyurethane da aka shafa a kan substrate, a matsayin saman fata na pu, ana iya zaɓar substrate ɗin da nau'ikan yadi, kamar auduga, zane na polyester, da sauransu, ko wasu kayan roba.
3. Idan aka sarrafa shi da kuma magance shi, ana sarrafa shi da kuma kula da shi, kamar su embossing, printing, rini da sauran hanyoyin aiki, domin samun yanayin da ake buƙata, launi da kuma tasirin saman. Waɗannan matakan sarrafawa na iya sa fatar PU ta yi kama da ainihin fata, ko kuma ta sami takamaiman tasirin ƙira.
4. Bayan an gama aiki: Bayan an gama aiki, fatar PU na iya buƙatar yin wasu matakai bayan an yi aiki, kamar kariyar rufi, maganin hana ruwa shiga, da sauransu, don ƙara ƙarfinsa da halayensa.
5. Kula da inganci da gwaji: A dukkan matakai na samarwa, za a gudanar da kula da inganci da dubawa don tabbatar da cewa fatar PU ta cika buƙatun ƙira da ƙayyadaddun bayanai.
Tsarin samar da fata mai sake yin amfani da ita:
1. Tattara kuma sake yin amfani da kayayyakin polyurethane da aka yi da shara, kamar tsoffin kayayyakin fata na pu, sharar samarwa, bayan an tace kuma an tsaftace ƙazanta da datti a saman, sannan a yi maganin busarwa;
2. A niƙa kayan polyurethane masu tsabta zuwa ƙananan ƙwayoyin cuta ko foda;
3. Yi amfani da mahaɗi don haɗa barbashi ko foda na polyurethane tare da polyurethane prepolymers, fillers, plasticizers, antioxidants, da sauransu, sannan a saka su a cikin kayan dumama don amsawar sinadarai don samar da sabon matrix na polyurethane. Sannan ana yin matrix na polyurethane zuwa fim ko siffa ta musamman ta hanyar yin siminti, shafa ko yin kalanda.
4. Ana dumama kayan da aka samar, a sanyaya su sannan a warke domin tabbatar da halayen jiki da kuma daidaiton sinadarai.
5. Fata mai laushi da aka sake yin amfani da ita, an yi mata fenti, an shafa mata fenti, an yi mata fenti da sauran kayan gyaran fuska domin samun kamanni da yanayin da ake so;
6. A gudanar da duba inganci domin ya cika ƙa'idodi da buƙatu masu dacewa. Sannan a yanka shi zuwa girma dabam-dabam da siffofi na fatar da aka gama;
Ta hanyar tsarin samarwa, za a iya fahimtar cewa idan aka kwatanta da fata ta gargajiya ta Pu, fatar Pu da aka sake yin amfani da ita tana mai da hankali sosai kan kare muhalli da sake amfani da albarkatu, wanda hakan ke rage gurɓatar muhalli. Muna da takaddun shaida na GRS don fata ta Pu da PVC, waɗanda ke biyan buƙatun ci gaba mai ɗorewa da kare muhalli, da kuma aiwatar da aikin samar da fata.
Lokacin Saƙo: Yuni-25-2024
