Labarai

Samuwar fim dinallo mai rufiAbubuwan da aka yi amfani da su sun haɗa da abubuwa biyu: mannewa mai rufi da bushewa.
Adhesion na allo mai rufin launi
Mataki na farko a cikin mannewa tsakanin ƙwanƙarar tsiri na ƙarfe da shafi shine jigon launi mai rufin allo a saman saman.A shafi wetting iya maye gurbin iska da ruwa asali adsorbed a kan karfe tsiri substrate surface.A lokaci guda, ƙaddamar da ƙauyen da ke kan ƙasa yana haifar da rushewa ko kumburi.Idan sigogi na solubility na guduro mai samar da fim na launi mai rufin allo mai rufi da farfajiyar ƙasa an zaɓi su daidai, zai samar da wani nau'in da ba za a iya jurewa ba tsakanin launi mai rufin allo mai rufi da fim ɗin mai rufi, Wannan yana da mahimmanci ga kyakkyawan mannewa na shafi.
Bushewar Ballo mai rufishafi
Aikin mannewa na launi mai launi mai launi kawai ya kammala mataki na farko na samar da fim din a cikin tsarin launi na launi mai launi, da kuma hanyar da za ta zama wani fim mai mahimmanci na ci gaba yana buƙatar ci gaba, wanda zai iya kammala dukkanin tsarin samar da fim din.Tsarin canzawa daga "fim ɗin rigar" zuwa "fim ɗin busassun" yawanci ana kiransa "bushewa" ko "warkewa".Wannan tsari na bushewa da warkewa shine ainihin tsarin samar da fim ɗin shafi.Kayan kwalliya tare da nau'i-nau'i daban-daban da kuma abubuwan da suka dace suna da hanyoyin samar da fim ɗin nasu, waɗanda aka ƙaddara su da kadarorin abubuwan samar da fim ɗin da ake amfani da su a cikin shafi.Yawancin lokaci, muna raba tsarin yin fim na sutura zuwa nau'i biyu:
(1) Mara canji.Gabaɗaya, yana nufin hanyar samar da fim ta zahiri, wanda galibi ya dogara ne akan volatilization na kaushi ko wasu kafofin watsa labaru masu watsawa a cikin fim ɗin shafa, sannu a hankali ƙara danko na fim ɗin shafa da kafa fim mai ƙarfi.Misali, acrylic coatings, chlorinated roba coatings, ethylene coatings, da dai sauransu.
(2) Canji.Gabaɗaya, yana nufin faruwar halayen sinadarai yayin aiwatar da fim ɗin, kuma murfin ya dogara ne akan halayen sinadarai don samar da fim.Wannan tsari na yin fim yana nufin polymerization na abubuwa masu yin fim a cikin sutura, wanda ake kira polymers, bayan aikace-aikacen.Ana iya cewa wata hanya ce ta musamman ta hada-hadar polymer, wacce gaba ɗaya ta bi tsarin amsawar polymer kira.Misali, kayan kwalliyar alkyd, epoxy coatings, polyurethane coatings, phenolic coatings, da dai sauransu, duk da haka, mafi yawan kayan ado na zamani ba su samar da fina-finai ta hanya ɗaya ba, amma sun dogara da hanyoyi da yawa don samar da fina-finai a ƙarshe, kuma kayan kwalliyar nada wani nau'in fim ne na yau da kullum wanda ya dogara da hanyoyi masu yawa don samar da fina-finai.