Daga Lawrence (Larry) Van Iseghem shine Shugaban / Shugaba na Van Technologies, Inc.
A tsawon lokacin yin kasuwanci tare da abokan ciniki na masana'antu a kan tsarin kasa da kasa, mun magance yawan tambayoyi masu ban mamaki kuma mun samar da mafita da yawa da ke hade da suturar UV-curable. Abubuwan da ke biye sune wasu tambayoyin da aka fi yawaita, kuma amsoshin da ke biye zasu iya ba da haske mai taimako.
1. Menene UV-curable coatings?
A cikin masana'antar ƙare itace, akwai nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan UV masu warkewa.
100% aiki (wani lokacin ana kiransa 100% daskararru) UV-curable coatings ne ruwa sinadaran abun da ke ciki wanda ba ya ƙunshi wani ƙarfi ko ruwa. Bayan aikace-aikacen, an fallasa murfin nan da nan zuwa makamashin UV ba tare da buƙatar bushewa ko ƙafe ba kafin a warke. Abun da aka yi amfani da shi yana amsawa don samar da ingantacciyar shimfidar shimfidar wuri ta hanyar aiwatar da aiki da aka siffanta kuma ana kiransa photopolymerization daidai. Tun da ba a buƙatun da ake buƙata kafin a warkewa, aikace-aikacen da tsarin warkarwa suna da inganci sosai kuma suna da tsada.
Ruwa ko kaushi-haɗe matasan UV-curable coatings a fili ya ƙunshi ko dai ruwa ko sauran ƙarfi don rage aiki (ko m) abun ciki. Wannan raguwa a cikin m abun ciki yana ba da damar sauƙi mafi girma a cikin sarrafa kauri da aka yi amfani da shi a cikin rigar fim, da / ko a sarrafa danko na rufi. Ana amfani da waɗannan kayan kwalliyar UV akan saman itace ta hanyoyi daban-daban kuma suna buƙatar bushewa gabaɗaya kafin maganin UV.
UV-curable foda coatings kuma su ne 100% m abun da ke ciki kuma yawanci ana amfani da conductive substrates ta electrostatic janye. Da zarar an yi amfani da shi, ana yin zafi don narkar da foda, wanda ke gudana don samar da fim din saman. Za'a iya fallasa kayan da aka rufe nan da nan zuwa makamashin UV don sauƙaƙe magani. Fim ɗin saman da ya haifar ba ya da zafi ko naƙasa.
Akwai bambance-bambancen waɗannan riguna masu warkarwa na UV waɗanda ke ɗauke da tsarin warkarwa na biyu (an kunna zafi, mai kunna danshi, da sauransu) waɗanda zasu iya ba da magani a cikin wuraren da ba a fallasa su ga makamashin UV. Waɗannan suturar galibi ana kiran su da suturar magani biyu.
Ko da irin nau'in murfin UV-curable da aka yi amfani da shi, ƙarshen ƙarshen ko Layer yana ba da inganci na musamman, dorewa da kaddarorin juriya.
2. Yaya da kyau kayan kwalliyar UV-curable suna manne da nau'ikan itace daban-daban, gami da nau'ikan itacen mai?
Rubutun UV-curable suna nuna kyakkyawan mannewa ga yawancin nau'in itace. Yana da mahimmanci a tabbatar da cewa isassun yanayin warkarwa sun wanzu don samarwa ta hanyar magani da mannewa daidai gwargwado ga ma'auni.
Akwai wasu nau'ikan da a zahiri suna da mai sosai kuma suna iya buƙatar aikace-aikacen firamare mai haɓaka mannewa, ko "tiecoat." Van Technologies ya gudanar da bincike mai zurfi da haɓakawa zuwa manne da suturar UV mai warkewa ga waɗannan nau'ikan itace. Abubuwan ci gaba na baya-bayan nan sun haɗa da silin da za a iya warkewa guda ɗaya na UV wanda ke hana mai, sap da farar tsoma baki tare da mannen saman rigar UV mai warkewa.
A madadin haka, ana iya cire man da ke kan saman itace kafin a yi amfani da kayan shafa ta hanyar shafa da acetone ko wani sauran ƙarfi mai dacewa. Za a fara jika rigar da ba ta da lint, mai shayarwa da sauran ƙarfi sannan a goge saman itacen. Ana barin saman ya bushe sannan kuma ana iya amfani da murfin UV-curable. Cire man fetur da sauran gurɓataccen abu yana inganta mannewa na gaba na murfin da aka yi amfani da shi zuwa saman itace.
3. Wani nau'in tabo ya dace da suturar UV?
Duk wani tabo da aka kwatanta a nan za a iya rufe shi da kyau kuma an lulluɓe shi da 100% UV-curable, Rage-rage UV-curable, waterborne-UV-curable, ko UV-curable foda tsarin. Sabili da haka, akwai adadin haɗuwa masu dacewa waɗanda ke yin mafi yawan kowane tabo a kasuwa wanda ya dace da kowane suturar UV-curable. Akwai, duk da haka, wasu abubuwan la'akari waɗanda suke sananne don tabbatar da dacewa ya wanzu don ƙarewar saman itace mai inganci.
Tabon Ruwa da Tabon Ruwa-UV-Curable:Lokacin da ake amfani da ko dai 100% UV-curable, ƙarfi-rage UV-curable ko UV-curable foda sealers / topcoats a kan ruwa tabo, yana da muhimmanci cewa tabo ya zama cikakke bushe don hana lahani a cikin rufi uniformity, ciki har da orange kwasfa, kifi, cratering. , pooling da puddling. Irin wannan lahani yana faruwa saboda ƙananan tashin hankali na rufin da aka yi amfani da su dangane da babban ragowar ruwa na ruwa daga tabo mai amfani.
Aiwatar da murfin ruwa-UV-mai warkewa, duk da haka, gabaɗaya ya fi gafartawa. Tabon da aka yi amfani da shi na iya nuna damshi ba tare da lahani ba yayin amfani da wasu mashinan ruwa-UV-curable sealers/topcoats. Ragowar danshi ko ruwa daga aikace-aikacen tabo zai bazu cikin hanzari ta hanyar busasshen ruwa-UV sealer/topcoat da aka shafa yayin aikin bushewa. Ana ba da shawarar sosai, duk da haka, don gwada duk wani tabo da haɗe-haɗe / haɗe-haɗe a kan samfurin gwajin wakilci kafin ƙaddamar da ainihin saman da za a gama.
Tushen Mai da Ruwan Ruwa:Ko da yake akwai yuwuwar akwai tsarin da za a iya amfani da shi ga rashin isassun busasshen mai na tushen mai ko kaushi mai ɗaurewa, yawanci ya zama dole, kuma ana ba da shawarar sosai, don bushe waɗannan tabon gabaɗaya kafin a yi amfani da kowane mai sitifi / topcoat. Tabon bushewa a hankali na waɗannan nau'ikan na iya buƙatar har zuwa awanni 24 zuwa 48 (ko ya fi tsayi) don cimma cikakkiyar bushewa. Bugu da ƙari, ana ba da shawarar gwada tsarin akan farfajiyar itace mai wakilci.
100% UV-Curable Tabon:Gabaɗaya, 100% UV-curable coatings suna nuna babban sinadari da juriya na ruwa lokacin da aka warke gabaɗaya. Wannan juriya yana sa ya zama da wahala ga suturar da aka yi amfani da su daga baya su manne da kyau sai dai in an goge saman da aka warkar da UV ɗin da kyau don ba da izinin haɗin injin. Ko da yake 100% UV-curable tabo waɗanda aka ƙera don zama masu karɓa ga suturar da aka yi amfani da su daga baya ana ba da su, mafi yawan 100% UV-curable stains suna buƙatar a goge ko kuma a warke gaba ɗaya (ana kiranta "B" mataki ko bump curing) don haɓaka haɗin gwiwa. “B” yana haifar da saura wuraren amsawa a cikin tabo wanda zai yi aiki tare tare da shafaffen UV mai warkewa yayin da yake fuskantar cikakken yanayin warkewa. Tsarin “B” kuma yana ba da damar yin laushi mai laushi zuwa denib ko yanke duk wani haɓakar hatsi wanda zai iya faruwa daga aikace-aikacen tabo. M hatimi ko topcoat aikace-aikace zai haifar da da kyau intercoat mannewa.
Wani damuwa tare da 100% UV-curable tabo ya shafi launuka masu duhu. Tabo masu launi masu nauyi (da masu launi gabaɗaya) suna yin mafi kyau yayin amfani da fitilun UV waɗanda ke isar da kuzari kusa da bakan haske na bayyane. Fitilolin UV na al'ada da aka yi da gallium a haɗe tare da daidaitattun fitilun mercury kyakkyawan zaɓi ne. Fitilar UV LED waɗanda ke fitar da 395 nm da/ko 405nm suna yin mafi kyau tare da tsarin launi dangane da 365 nm da 385 nm tsararru. Hakanan, tsarin fitilun UV waɗanda ke ba da ikon UV mafi girma (mW / cm2) da yawan kuzari (mJ/cm2) inganta ingantacciyar magani ta hanyar tabo mai launi ko launi mai launi.
A ƙarshe, kamar yadda yake tare da sauran tsarin tabo da aka ambata a sama, ana ba da shawarar gwaji kafin yin aiki tare da ainihin saman da za a yi tabo da ƙare. Tabbatar kafin magani!
4. Menene madaidaicin / mafi ƙarancin ginin fim don 100% UV coatings?
UV-curable foda coatings a fasaha su ne 100% UV-curable coatings, da kuma amfani da kauri an iyakance ta electrostatic sojojin na jan hankali cewa daure foda zuwa saman da ake gama. Zai fi kyau a nemi shawarar masana'anta na UV foda.
Game da ruwa 100% UV-curable coatings, shafa rigar fim kauri zai haifar da kusan guda bushe kauri fim bayan UV magani. Wasu raguwa ba makawa ne amma yawanci yana da ƙarancin sakamako. Akwai, duk da haka, sosai fasaha aikace-aikace cewa ƙayyade sosai m ko kunkuntar fim kauri tolerances. A cikin waɗannan yanayi, ana iya yin ma'aunin fim ɗin da aka warke kai tsaye don daidaita kaurin fim ɗin rigar zuwa bushe.
Kauri na ƙarshe wanda za'a iya samu zai dogara ne akan sinadarai na murfin UV-curable da yadda aka tsara shi. Akwai tsarin da aka ƙera don samar da adibas ɗin fim na bakin ciki tsakanin 0.2 mil - 0.5 mil (5µ - 15µ) da sauran waɗanda zasu iya ba da kauri fiye da inci 0.5 (12 mm). Yawanci, suturar da aka warkar da UV waɗanda ke da girman haɗin giciye, irin su wasu nau'ikan urethane acrylate, ba su da ikon yin babban kauri na fim a cikin Layer ɗin da aka yi amfani da su. Matsayin raguwa a kan magani zai haifar da tsagewa mai tsanani na murfin da aka yi amfani da shi. Har yanzu ana iya samun babban gini ko kauri mai ƙarewa ta amfani da suturar UV-curable na babban haɗin giciye ta hanyar amfani da yadudduka na bakin ciki da yawa da ko dai sanding da/ko “B” a tsakanin kowane Layer don haɓaka mannewar coat.
Na'urar warkewa mai amsawa na mafi yawan suturar UV-curable ana kiranta "farawar tsattsauran ra'ayi." Wannan tsarin warkarwa mai aiki yana da sauƙi ga iskar oxygen a cikin iska wanda ke rage gudu ko hana saurin magani. Ana kiran wannan jinkirin sau da yawa a matsayin hana iskar oxygen kuma yana da mahimmanci yayin ƙoƙarin cimma kauri na fim. A cikin fina-finai na bakin ciki, filin sararin samaniya zuwa jimillar ƙarar da aka yi amfani da shi yana da girma idan aka kwatanta da kauri na fim. Don haka, kaurin fim ɗin bakin ciki sun fi sauƙi ga hana iskar oxygen kuma suna warkarwa a hankali. Sau da yawa, saman gamawar ba ta cika warkewa ba kuma yana nuna mai ko mai mai. Don magance hana iskar oxygen, iskar da ba ta dace ba kamar nitrogen da carbon dioxide za a iya wuce ta saman sama yayin magani don cire yawan iskar oxygen, don haka ba da izinin cikakken, saurin warkarwa.
5. Yaya bayyananne bayyanannen murfin UV?
100% UV-curable rufi na iya nuna kyakkyawan haske kuma za su yi hamayya da mafi kyawun riguna a cikin masana'antar. Bugu da ƙari, idan aka yi amfani da itace, suna fitar da mafi girman kyau da zurfin hoto. Musamman ban sha'awa shine tsarin acrylate na aliphatic urethane daban-daban waɗanda suke da haske sosai kuma marasa launi lokacin da aka yi amfani da su akan fage iri-iri, gami da itace. Bugu da ƙari kuma, aliphatic polyurethane acrylate coatings ne sosai barga da kuma tsayayya discoloration da shekaru. Yana da mahimmanci a nuna cewa ƙananan sutura masu ƙyalli suna watsar da haske fiye da mai sheki kuma za su sami ƙananan haske. Dangane da wasu sinadarai masu shafa, duk da haka, 100% UV-curable coatings daidai ne idan ba mafi girma ba.
Waterborne-UV-curable coatings samuwa a wannan lokaci za a iya tsara don samar da na musamman tsabta, itace dumi da kuma mayar da martani ga kishiya mafi kyau na al'ada gama tsarin. Tsabtace, mai sheki, amsawar itace da sauran kaddarorin ayyuka na rufin UV-curable da ake samu a kasuwa a yau suna da kyau kwarai lokacin da aka samo su daga masana'anta masu inganci.
6. Shin akwai suturar UV masu launi ko masu launi?
Ee, ana samun sutura masu launi ko masu launi a cikin kowane nau'in suturar UV-curable amma akwai abubuwan da za a yi la'akari da su don ingantaccen sakamako. Abu na farko kuma mafi mahimmanci shine gaskiyar cewa wasu launuka suna tsoma baki tare da ikon UV makamashi don watsawa cikin, ko shiga, shafi na UV-curable shafi. An kwatanta bakan na'urar lantarki a Hoto na 1, kuma ana iya ganin bakan hasken da ake iya gani yana kusa da bakan UV. Bakan wani ci gaba ne ba tare da fayyace layuka ba (tsawon tsayin tsayin daka) na shatatawa. Saboda haka, a hankali yanki ɗaya yana haɗuwa zuwa wani yanki na kusa. Idan aka yi la’akari da yankin hasken da ake iya gani, akwai wasu ikirari na kimiyya cewa ya kai daga 400 nm zuwa 780 nm, yayin da wasu ikirari suka nuna cewa ya kai daga 350 nm zuwa 800 nm. Don wannan tattaunawa, yana da mahimmanci mu gane cewa wasu launuka na iya toshe watsa wasu tsawon tsawon UV ko radiation yadda ya kamata.
Tunda an fi mayar da hankali kan yanayin zafin UV ko radiyo, bari mu bincika yankin daki-daki. Hoto na 2 yana nuna alakar da ke tsakanin tsayin tsayin hasken da ake iya gani da kuma launi mai dacewa da ke da tasiri wajen toshe shi. Har ila yau, yana da mahimmanci a san cewa masu launi yawanci suna da iyakacin tsayin raƙuman raƙuman ruwa kamar yadda launin ja zai iya wuce iyaka mai yawa kamar yadda zai iya shiga cikin yankin UVA. Sabili da haka, launuka na damuwa mafi girma za su wuce launin rawaya - orange - ja kuma waɗannan launuka na iya tsoma baki tare da magani mai mahimmanci.
Ba wai kawai masu launi suna tsoma baki tare da maganin UV ba, har ila yau suna da la'akari lokacin amfani da fararen launi masu launi, irin su UV-curable primers da topcoat fenti. Yi la'akari da bakan shayarwa na farin pigment titanium dioxide (TiO2), kamar yadda aka nuna a cikin Hoto 3. TiO2 yana nuna karfi sosai a duk yankin UV kuma duk da haka, fararen fata, UV-curable coatings suna da kyau warke. yaya? Amsar tana zaune cikin tsararren tsari ta mai haɓakawa da masana'anta tare da yin amfani da fitilun UV masu dacewa don magani. Fitilolin UV na gama gari da ake amfani da su suna fitar da kuzari kamar yadda aka kwatanta a Hoto 4.
Kowace fitilar da aka kwatanta tana dogara ne akan mercury, amma ta hanyar yin amfani da mercury tare da wani nau'in karfe, fitar da iska zai iya canzawa zuwa wasu yankuna masu tsayi. A cikin yanayin tushen TiO2, fararen fata, kayan kwalliyar UV, ƙarfin da aka bayar ta daidaitaccen fitilar mercury za a toshe shi da kyau. Wasu daga cikin tsayin daka mai tsayi da aka kawo na iya ba da magani amma tsawon lokacin da ake buƙata don cikakken magani bazai zama mai amfani ba. Ta hanyar yin amfani da fitilar mercury tare da gallium, duk da haka, akwai wadataccen makamashi da ke da amfani a yankin da TiO2 ba ya toshe shi yadda ya kamata. Yin amfani da haɗin nau'ikan fitilu guda biyu, duka ta hanyar magani (amfani da gallium doped) da kuma maganin saman (ta amfani da daidaitaccen mercury) ana iya cika su (Hoto 5).
A ƙarshe, ana buƙatar ƙirƙira kayan kwalliyar UV masu launi ko masu launi ta amfani da ingantattun masu daukar hoto ta yadda za a yi amfani da makamashin UV - kewayon tsayin haske da fitilu ke isar da su yadda ya kamata don amfani da su yadda ya kamata.
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Dangane da kowace tambaya da ta taso, kar a yi jinkiri don tambayar kamfanin yanzu ko mai siyar da kayan kwalliya, kayan aiki da tsarin sarrafa tsari. Ana samun amsoshi masu kyau don taimakawa yanke shawara mai inganci, aminci da riba. ku
Lawrence (Larry) Van Iseghem shi ne shugaban / Shugaba na Van Technologies, Inc. Van Technologies yana da fiye da shekaru 30 na gwaninta a cikin UV-curable coatings, fara a matsayin R&D kamfanin amma canza da sauri zuwa wani manufacturer na Application Specific Advanced Coatings ™ bauta wa masana'antu shafi. wurare a duniya. UV-curable coatings kasance ko da yaushe a farko mayar da hankali, tare da sauran "Green" shafi fasahar, tare da girmamawa a kan yi daidai da ko zarce na al'ada fasahar. Van Technologies ke ƙera alamar GreenLight Coatings ™ na suturar masana'antu bisa ga tsarin ISO-9001: 2015 ingantaccen tsarin gudanarwa. Don ƙarin bayani, ziyarciwww.greenlightcoatings.com.
Lokacin aikawa: Yuli-22-2023
