Njira ndi mfundo yakutha mu zokutira za UV ndi zokutira za PU

Kutha ndiko kugwiritsa ntchito njira zina zochepetsera kung'anima kwa pamwamba.

1. mfundo ya kuzimiririka

Kuphatikizidwa ndi limagwirira filimu pamwamba gloss ndi zinthu zomwe zimakhudza gloss, anthu amakhulupirira kuti kutha ndi kugwiritsa ntchito njira zosiyanasiyana kuwononga kusalala kwa filimuyo, kuonjezera pamwamba yaying'ono roughness filimu, ndi kuchepetsa kuwonetsera kwa filimu pamwamba. ku kuwala.Ikhoza kugawidwa mu kutha kwa thupi ndi kutha kwa mankhwala.Mfundo ya matting thupi ndi: kuwonjezera matting wothandizila kuti pamwamba ❖ kuyanika wosafanana mu filimu kupanga ndondomeko, kuonjezera kubalalitsa kuwala ndi kuchepetsa kusinkhasinkha.Kutha kwa Chemical ndiko kupeza gloss yotsika poyambitsa zinthu zina zotengera kuwala kapena magulu monga polypropylene zomezanitsidwa mu zokutira za UV.

2. njira ya kuzimiririka

Wokweretsa, m'makampani amakono okutirira a UV, anthu nthawi zambiri amagwiritsa ntchito njira yowonjezerera.Pali magulu awa:

(1) Sopo wachitsulo

Sopo wachitsulo ndi mtundu wa zomatira zomwe zimagwiritsidwa ntchito kwambiri ndi anthu oyambirira.Makamaka ndi zitsulo zina zazitsulo, monga aluminium stearate, zinc stearate, calcium stearate, magnesium stearate ndi zina zotero.Aluminium stearate ndi yomwe imagwiritsidwa ntchito kwambiri.Mfundo yakutha kwa sopo wachitsulo imachokera ku kusagwirizana kwake ndi zigawo zophimba.Imayimitsidwa mu zokutira ndi tinthu tating'onoting'ono kwambiri, tomwe timagawira pamwamba pa ❖ kuyanika pamene filimuyo imapangidwa, zomwe zimapangitsa kuti zikhale zovuta kwambiri pamwamba pa zokutira ndi kuchepetsa kuwala kwa kuwala pamwamba pa zokutira kuti zitheke. cholinga cha kutha.

(2) Sera

Sera ndi chinthu choyambirira komanso chogwiritsidwa ntchito kwambiri pokwerera, chomwe ndi cha organic suspension matting agent.Pambuyo ❖ kuyanika yomanga, ndi volatilization wa zosungunulira, sera mu ❖ kuyanika filimu analekanitsidwa ndi inaimitsidwa pamwamba pa ❖ kuyanika filimu ndi makhiristo zabwino, kupanga wosanjikiza wa akhakula pamwamba kubalalitsa kuwala ndi kusewera udindo wa kutha.Monga matting wothandizira, sera ndi yosavuta kugwiritsa ntchito, ndipo ingapereke filimuyo bwino dzanja kumverera, kukana madzi, chinyezi ndi kutentha kukana, ndi kukana banga.Komabe, pambuyo phula wosanjikiza aumbike pa filimu pamwamba, komanso kuteteza volatilization zosungunulira ndi kulowa mpweya, zimakhudza kuyanika ndi recoating filimu.Chitukuko m'tsogolomu ndikupangira sera ya polima ndi silika kuti mupeze zotsatira zabwino kwambiri zotha.

(3) Malipiro ogwira ntchito

Ma pigment akuthupi, monga diatomite, kaolin ndi fumed silica, ndi chindapusa chogwira ntchito chomwe chimagwiritsidwa ntchito makamaka ngati ma matting agents.Iwo ndi a inorganic zodzaza matting agents.Filimuyo ikauma, tinthu ting'onoting'ono tating'ono timapanga tinthu tating'ono tokhalokha pamwamba pa filimuyo kuti tichepetse kunyezimira kwa kuwala ndikupeza mawonekedwe a Matt.Zotsatira za matting za mtundu uwu wa matting wothandizira zimaletsedwa ndi zinthu zambiri.Kutenga silika monga mwachitsanzo, akagwiritsidwa ntchito ngati matting agent, zotsatira zake za matting zidzakhudzidwa ndi zinthu monga pore voliyumu, pafupifupi tinthu tating'onoting'ono ndi kukula kwa tinthu tating'onoting'ono, makulidwe a filimu youma komanso ngati tinthu tating'ono tating'ono tachiritsidwa.Zoyesera zikuwonetsa kuti kutha kwa silika woipa ndi voliyumu yayikulu ya pore, kugawa kwa tinthu ting'onoting'ono ndikufananiza kukula kwa tinthu ndi makulidwe owuma a filimu ndibwino.

Kuphatikiza pa mitundu itatu yomwe ili pamwambayi ya zomatira zomwe zimagwiritsidwa ntchito kwambiri, mafuta ena owuma, monga mafuta a tung, amathanso kugwiritsidwa ntchito ngati zokutira zopaka UV.Iwo makamaka amagwiritsa ntchito mkulu reactivity wa conjugated iwiri chomangira tung mafuta kuti pansi pa filimu kukhala osiyana makutidwe ndi okosijeni ndi liwiro mtanda kulumikiza, kotero kuti pamwamba pa filimuyo ndi wosagwirizana kukwaniritsa matting kwenikweni.