labarai

A cikin filin bugawa, tawada da aka yi amfani da shi don bugawa ya kuma nuna abubuwan da suka dace, UV tawada don saurin warkewa, kare muhalli da sauran fa'idodin masana'antar bugu.UV bugu tawada cikin diyya bugu, wasiƙa, gravure bugu, allo bugu da inkjet bugu da sauran bugu filayen, wannan labarin yana raba UV alaka ilmi, abun ciki don abokai tunani:

Ma'anarsa

UV: Gajere don hasken ultraviolet.Ultraviolet (UV) ba ya iya gani ga ido tsirara.Sashe ne na hasken lantarki na lantarki ban da hasken shuɗi na bayyane.Tsawon zangon yana cikin kewayon 10 ~ 400nm

UV tawada: UV tawada, yana nufin UV haske sakawa a iska mai guba tawada nan take

Halaye

1, saurin bushewa yana da sauri, adana lokaci, ƙarƙashin iska mai haske UV, buƙatar ƴan daƙiƙa zuwa ƴan daƙiƙa kaɗan ana iya warkewa.

2, kayan aiki sun haɗa da yanki na ƙananan, aikin bugun bugu, ceton ma'aikata, fa'idodin tattalin arziki.

3, fiye da kowane tawada sai tawada bushewa na dabi'a, na iya adana kuzari.

4, a cikin yanayin kaurin fim ɗin busassun, ƙarin ceton tawada.

5, ba zai yi ɓawon burodi ba, muddin ba a tuntuɓar hasken ultraviolet ba zai bushe da ƙarfi akan tawada.

6, kwanciyar hankali mai kyau.

7, babban haske.

8, ɓangarorin tawada ƙanana, suna iya buga alamu masu kyau.

9, bugu muhalli iska sabo ne, ƙaramin wari, babu VOC.

Babban sinadaran

Babban abubuwan da ke cikin tawada UV sun haɗa da pigment, oligomer, monomer (diluent mai aiki), photoinitiator da wasu ƙarin taimako.Daga cikin su, resin da diluent mai aiki suna taka rawar gyara pigment da samar da kayan aikin fim;Pigments suna ba da matsakaicin launi na tawada da ikon rufewa ga ma'auni;Ana buƙatar mai ɗaukar hoto don samun damar ɗaukar hoto a ƙarƙashin tsangwama na pigments don fara polymerization.

1, Monomolecular Compounds (reactive diluent)

Wannan fili ne mai sauƙi tare da ƙananan nauyin kwayoyin halitta, yana iya rage danko, taka rawar watsawa, zai iya tarwatsa pigments, narkar da guduro, ƙayyade saurin curing da mannewa na tawada, da shiga cikin guduro UV curing crosslinking dauki.

2, Additives

Ciki har da pigments, lubricants, thickening wakili, filler, solidifying wakili, da dai sauransu Yana rinjayar tawada mai sheki, danko, taushi, launi, fim kauri, curing gudun, bugu dacewa da sauran kaddarorin.

3, Haske mai ƙarfi Resin shine kayan Haɗin Tawada UV

Gudun maganin tawada UV, mai sheki, mannewa, juriya da sauran kaddarorin, tawada daban-daban yana da nau'ikan guduro mai gauraye daban-daban.

4, Hasken Ƙaddamarwa

Light initiator a matsayin gada tsakanin sinadaran dauki, shi ne wani irin haske excitation zama sosai aiki, bayan sha photons samar da free radicals, free radical canja wurin makamashi zuwa sauran photosensitive polymer, samar da wani sarkar dauki, guda kwayoyin abu, ƙari, haske m guduro. tare, yin tawada curing dauki, da kuma bayan da saki makamashi a kanta ba shi da hannu a crosslinking dauki.

Ƙa'idar Ƙarfafawa

Ƙarƙashin hasken ultraviolet na hasken ultraviolet, mai ƙaddamar da hasken wutar lantarki don samar da radicals kyauta, ayyukan radical na kyauta a babban gudun, wani karo yana faruwa tare da guduro da ƙwayar kwayoyin halitta guda ɗaya, canja wurin makamashi zuwa guduro da mahadi guda ɗaya, resin da mahallin kwayoyin halitta guda ɗaya. Bayan shayar da kuzarin kuzari mai ɗauke da unsaturated biyu bond atoms polymerized monomer polymer and radicals, wato, guduro da guda kwayoyin mahadi, Sun bude biyu bond kuma fara wani giciye-linking dauki, a giciye-linking magani, a cikin abin da photoinitiator rasa makamashi da kuma dawo. zuwa yanayinsa na asali.

Abubuwan Da Suka Shafi

UV curing tawada dole ne ya sami hasken UV don warkewa, in ba haka ba ba za a iya amfani da shi ba.A cikin amfani da tawada UV, matsalar mannewa ta farko ita ce tawada UV ba ta da magani mai zurfi.Dangane da kayan aiki mai ƙarfi, dalili na iya zama gazawar kayan aikin warkarwa na UV, wato, tsawon zangon na'urar warkewar UV bai dace da tawada mai ƙarfi mai haske ba, ko ƙarfin ƙarfi mai ƙarfi bai isa ba, ko ƙarfin ƙarfi mai ƙarfi bai isa ba. dace.

1, haske m tawada UV haske m bakan ji na ƙwarai kewayon ga tsawo tsakanin 180-420NM.

2, ƙarfin fitilar UV dole ne ya cika buƙatun fasaha na maganin tawada.

3, saurin bugawa da sauri shima yana shafar saurin warkewar tawada.

4, tasirin kauri na tawada, tawada yana da kauri sosai zai shafi tasirin warkewa, duk abubuwan da suka shafi kauri na fim ɗin za su shafi tasirin warkewa.

5, tasirin sauyin yanayi: babban zafin jiki, dankon tawada UV ya zama ƙasa kaɗan, bayan bugu, mai sauƙin samar da sabon fasalin manna.Low zafin jiki, high danko, rinjayar da thixotropy na tawada, bitar zafin jiki ba zai iya zama ma high, a cikin hunturu a cikin kwandishan sito, ya kamata a sa zuwa dakin zafin jiki, da kuma dace rage curing gudun.

6, da tasirin pigment a kan UV tawada: saboda daban-daban pigments a kan haske sha, tunani da pigment abun ciki na tawada a general, fari, baki, blue ya fi wuya a warke, ja, rawaya, haske man fetur, m man sauki warkewa. .