Gabatarwa: Tsarin canja wuri na thermal, tsari na yau da kullun a cikin jiyya na kayan kwalliyar kayan kwalliya, saboda yana da sauƙin bugawa, kuma ana iya daidaita launi da alamu.Tsari ne da masu alamar suka fi so.Mai zuwa yana gyara taRB PACKAGE.Bari mu raba wasu ingantattun matsalolin gama gari da mafita gami da tasirin tasirin canjin zafi, don bayanin ku a cikin sarkar samar da Youpin:
Canja wurin zafi
Tsarin canja wuri na thermal yana nufin takardar canja wuri mai rufi tare da pigments ko rini azaman matsakaici, ta hanyar dumama, matsa lamba da sauran hanyoyin don canja wurin ƙirar ƙirar tawada akan matsakaici zuwa hanyar bugu.Babban ka'idar canja wurin thermal ita ce tuntuɓar matsakaici mai rufaffiyar tawada kai tsaye tare da ma'auni.Ta hanyar dumama da matsawa na thermal print head da silinda ra'ayi, tawada a kan matsakaici zai narke da kuma canja wurin zuwa substrate don samun abin da ake so Daga cikin abubuwan da aka buga.
01Abubuwan da ke tasiri na canjin thermal
1) Shugaban bugu na thermal
The thermal print shugaban ne yafi hada da wani surface m film m Layer, a kasa m film m Layer da dumama abubuwa.Rubutun dumama allon siliki ne mai gudanarwa.Tare da taimakon zafi da bugun bugun jini ya haifar, ƙananan barbashi na tawada na ɓangaren zane suna ɓoye kuma suna narke don kammala canja wurin tawada.
Gudun bugu na canjin zafi ya dogara da lokacin da ake buƙata don kowane layin zane da rubutu.Sabili da haka, shugaban canja wuri na thermal da takarda canja wuri ya kamata su sami canjin zafi mai kyau, don haka zafin da aka yi ta hanyar dumama zai iya wucewa cikin sauri ta hanyar kariya ta kariya, takarda takarda da rata kuma a karshe zuwa saman substrate don tabbatar da cewa ya kamata a yi amfani da shi. cewa tawada yana da isasshen lokacin canja wuri.
2) Tawada
A abun da ke ciki na thermal canja wurin tawada gabaɗaya sassa uku ne: pigment (launi ko rini), kakin zuma da man fetur, daga cikinsu kakin zuma ne babban bangaren thermal canja wurin tawada.Babban abun da ke ciki na tawada canjin yanayin zafi na gabaɗaya na iya komawa zuwa Tebur 1.
Tebu 2 misali ne na ƙirar tawada mai buguwar zafi.Ana narkar da N-methoxymethyl polyamide a cikin barasa na benzyl, toluene, ethanol da sauran abubuwan kaushi, ana sanya pigments masu jurewa zafi da bentonite don motsawa, sannan a ƙasa cikin tawada na buga allo.Ana buga tawada akan mai ɗaukar hoto (kamar takardar canja wuri mai zafi) ta hanyar amfani da hanyar bugu na allo, sannan ana danna masana'anta da zafin rana kuma a canza shi.
Lokacin bugawa, danko na tawada daban-daban yana da alaƙa kai tsaye da zafin jiki na dumama, kuma zafin dumama da ɗankowar tawada ya kamata a kula sosai.Aiki ya tabbatar da cewa lokacin da dumama zafin jiki ne 60 ~ 100 ℃, lokacin da tawada ya narke, danko darajar tawada yana da tsayayye a game da 0.6 Pa·s, wanda shi ne mafi manufa.Gabaɗaya magana, mafi kusancin tawada zuwa wannan jiha, mafi kyawun aikin canja wuri.
A cikin 'yan shekarun nan, tare da inganta fasahar kunshin bakan gizo na Shanghai, yawan zafin jiki na kayan da aka buga ya karu daga ainihin 45 ℃ zuwa 60 ℃, wanda ya fadada kewayon aikace-aikace na canjin thermal.Bugu da ƙari, yin amfani da launi mai laushi ko launin launi mai haske yana ba da sakamako mai kyau na launi na launi.
3) Canja wurin kafofin watsa labarai
Daban-daban daban-daban suna da kaddarorin daban-daban, don haka lokacin zabar takarda canja wuri, ya kamata ku kula da abubuwan da suka biyo baya na substrate.
① Yin aikin jiki
Ana nuna kaddarorin zahiri na takardar canja wuri a cikin Tebura 3.
Abubuwan da ke sama su ne kaddarorin zahiri na madaidaitan takarda canja wurin zafi guda uku.Ana iya la'akari da waɗannan abubuwa uku masu zuwa lokacin zabar:
Kauri daga cikin substrate bai kamata ya zama mafi girma fiye da 20 μm ba;
Substrate ya kamata ya sami babban matakin santsi don tabbatar da canjin canjin tawada;
Dole ne a sami isasshen ƙarfi don tabbatar da cewa ba za a tsage shi ba yayin sarrafa takarda da bugu.
②Kayan sinadarai
Kyakkyawan mannewa tawada mannewa ne muhimmai guda biyu masu mahimmancin abubuwan sinadarai na madaidaicin takarda.A cikin samarwa, abubuwan sinadarai na takarda canja wuri kai tsaye suna shafar ingancin bugu.Idan takardar canja wuri ba za ta iya sanya tawada ta manne da kyau ba, ko kuma adadin tawada ba a ƙware wajen samarwa ba, zai haifar da sharar bugu.Kyakkyawan tsarin bugu da bugu mai kyau dole ne a dogara ne akan kyakkyawar fahimtar sinadarai na takardar canja wuri.
③ Kyakkyawan aikin thermal
Tun lokacin da aka aiwatar da tsarin canja wuri ta hanyar zafin jiki mai girma, kayan aikin takarda dole ne su iya tsayayya da tasirin yanayin zafi da kuma kiyaye kadarorin ba su canzawa.Gabaɗaya magana, ko aikin thermal na substrate na takarda canja wurin thermal yana da kyau ana iya nunawa ta abubuwa masu zuwa:
Ƙananan juriya na zafi mai juriya na zafi, ƙananan kauri, mafi kyawun canja wurin zafi, kuma mafi kyawun aikin zafi;
Smoothness The smoother da substrate surface, da ƙananan zafi juriya da kuma mafi kyau thermal yi;
Zazzabi na shugaban bugu na thermal mai jure zafi gabaɗaya yana kusa da 300 ℃, kuma dole ne substrate ya iya tabbatar da cewa babban aikin baya canzawa a wannan zafin jiki.
4) Substrate
Substrates tare da ɗan ƙaramin ƙasa suna da ingancin bugawa mafi kyau, wanda shine muhimmin fasalin canjin thermal.Saboda yanayin da ke cikin ƙasa yana nuna cewa substrate yana da makamashi mai girma, za'a iya canza tawada a kan takarda canja wuri zuwa ga ma'aunin da kyau, kuma za'a iya samun matakin da ya dace da sautin;amma kuma m zai shafi ingancin tawada Canja wurin al'ada ba ya da amfani ga fahimtar tsarin bugu.
02Rashin gazawar ingancin gama gari
1) Wani tsari yana bayyana akan cikakken sigar
Phenomenon: Tabo da alamu suna bayyana a cikakken shafi.
Dalilai: Dankowar tawada yayi ƙasa da ƙasa, kusurwar squeegee bai dace ba, bushewar tawada bai isa ba, wutar lantarki mai tsayi, da sauransu.
Kashewa: ƙara danko, daidaita kusurwa na scraper, ƙara yawan zafin jiki na tanda, da kuma riga-kafi da wakili na electrostatic a bayan fim din.
2) Natsuwa
Phenomenon: Layuka kamar Comet suna bayyana a gefe ɗaya na ƙirar, galibi suna bayyana akan farar tawada da kuma gefen ƙirar.
Babban dalilai: barbashi na launi na tawada suna da girma, tawada ba ta da tsabta, danko yana da girma, wutar lantarki mai tsayi, da dai sauransu.
Kashewa: tace tawada kuma cire squeegee don rage maida hankali;farar tawada za a iya riga-kafi don magance fim ɗin ta hanyar lantarki, a yi amfani da ƙwanƙwasa ƙwanƙwasa don gogewa tsakanin squeegee da farantin, ko ƙara wakili na lantarki.
3) Rijistar launi mara kyau, yana bayyana kasa
Phenomenon: Bambancin launi na rukuni yana faruwa lokacin da launuka da yawa suka mamaye, musamman akan launi na bango.
Babban dalilai: na'urar kanta tana da rashin daidaituwa da haɓaka;ƙarancin faranti;fadada da ba daidai ba da raguwa na launi na baya.
Ban da: yi amfani da hasken strobe don yin rajista da hannu;sake yin farantin;fadadawa da kwangila a ƙarƙashin rinjayar tasirin gani na samfurin, ko kuma babu farar fata a cikin wani karamin sashi na tsarin.
4) Tawada bai bayyana ba
Al'amari: Wani abin rufe fuska yana bayyana akan fim ɗin da aka buga.
Dalili: Ma'auni na scraper yana kwance;shimfidar wuri ba ta da tsabta.
Kashewa: sake gyara mai gogewa kuma gyara mariƙin wuka;tsaftace farantin bugu tare da lalata foda idan ya cancanta;shigar da isar da baya tsakanin farantin karfe da scraper.
5) Launin bugawa ya ragu
Phenomenon: Launi bawon yana faruwa a cikin yanki na gida na manyan alamu, musamman akan fim ɗin pretreatment na gilashin bugu da bakin karfe.
Dalilai: launi mai launi kanta an cire shi lokacin da aka buga a kan fim ɗin da aka sarrafa;lantarki a tsaye;Layer tawada mai kauri kuma bai isa ya bushe ba.
Kashewa: Ƙara yawan zafin jiki na tanda kuma rage gudun.
6) Rashin saurin sauri yayin canja wuri
Phenomenon: Launin launi da aka canjawa wuri a kan madaurin yana cikin sauƙin cire shi ta tef ɗin da aka yi amfani da shi don gwaji.
Dalili: rabuwa ko goyan baya da bai dace ba, musamman saboda goyan baya bai yi daidai da abin da ake buƙata ba.
Kashewa: Sake maye gurbin abin da aka saki (idan ya cancanta, yi gyare-gyare);maye gurbin mannen baya wanda ya dace da kayan tushe.
7) Anti-stick
Al'amari: Layer tawada yana barewa yayin juyawa, kuma sautin yana da ƙarfi.
Dalilai: tashin hankali mai wuce gona da iri, bushewar tawada mara cika, lakabi mai kauri yayin dubawa, rashin kyawun yanayin gida da zafi, tsayayyen wutar lantarki, saurin bugawa, da sauransu.
Kawarwa: Rage tashin hankali, ko rage saurin bugawa yadda ya kamata don yin bushewa ya cika, sarrafa zafin gida da zafi, da riga-kafi da wakili na lantarki.
8) Matsakaici
Abin mamaki: ɗigo masu kyau ba bisa ƙa'ida ba (mai kama da ɗigon da ba za a iya bugawa ba) suna bayyana akan gidan yanar gizo mara zurfi.
Dalili: Tawada ba ya hawa.
Kawarwa: Tsaftace shimfidar wuri, yi amfani da abin nadi na tsotsa na lantarki, zurfafa ɗigon, daidaita matsi na squeegee, da rage ɗankowar tawada daidai yadda ya kamata ba tare da shafar wasu yanayi ba.
9) Zinariya, azurfa, da lu'u-lu'u suna bayyana bawo-kamar lemu a lokacin bugawa
Abin mamaki: Zinariya, azurfa, da lu'u-lu'u yawanci suna da bawo-kamar lemu a kan babban yanki.
Dalili: Barbashi na zinari, azurfa, da lu'u-lu'u suna da girman gaske kuma ba za a iya tarwatsa su daidai a cikin tiren tawada ba, yana haifar da rashin daidaituwa.
Cirewa: Kafin a buga tawada, sai a yi koda tawada, sannan a shafa tawada a kan tiren tawada tare da famfo, sannan a sanya bututun hurawa na roba a kan tiren tawada;rage saurin bugawa.
10) Rashin haɓaka matakan bugawa
Phenomenon: Alamomin da ke da manyan sauye-sauyen gradation (kamar 15% - 100%) sau da yawa sun kasa bugawa a cikin ɓangaren raga na haske, rashin isasshen yawa a cikin ɓangaren sautin duhu, ko bayyanannun mahaɗa a ɓangaren sautin na tsakiya.
Dalili: Matsayin canji na ɗigo ya yi girma sosai, kuma mannewar tawada ga fim ɗin ba shi da kyau.
Kashewa: amfani da abin nadi na tsotsa na electrostatic;raba faranti biyu.
11) Hasken haske akan al'amarin da aka buga yana da haske
Abin mamaki: Launin samfurin da aka buga ya fi samfurin haske, musamman lokacin buga azurfa.
Dalili: Dankowar tawada yayi ƙasa sosai.
Keɓe: ƙara ɗanyen tawada don ƙara ɗanƙon tawada zuwa adadin da ya dace.
12) Farin rubutu yana da gefuna
Al'amari: Jaket ɗin gefuna galibi suna bayyana akan gefuna na rubutu waɗanda ke buƙatar babban fari.
Dalilai: barbashi da pigments na tawada ba su da kyau;danko na tawada yana da ƙasa, da dai sauransu.
Banda: kaifafa wuka ko ƙara abubuwan da ake buƙata;daidaita kusurwar squeegee;ƙara danko na tawada;canza farantin lantarki-engraving zuwa farantin Laser.
13) M shafi na pre-shafi fim na bakin karfe (silicone shafi)
Pretreatment na fim (silicon shafi) yawanci ana aiwatar da shi kafin buga fim ɗin canja wurin bakin karfe, ta yadda za a iya warware matsalar rashin tsabta na Layer tawada a yayin aiwatar da canja wurin (lashin tawada yana kan fim ɗin lokacin da zafin jiki). yana da zafi sama da 145 ° C).Wahalar bawo).
Abubuwan da ke sama su ne kaddarorin zahiri na madaidaitan takarda canja wurin zafi guda uku.Ana iya la'akari da waɗannan abubuwa uku masu zuwa lokacin zabar:
Kauri daga cikin substrate bai kamata ya zama mafi girma fiye da 20 μm ba;
Substrate ya kamata ya sami babban matakin santsi don tabbatar da canjin canjin tawada;
Dole ne a sami isasshen ƙarfi don tabbatar da cewa ba za a tsage shi ba yayin sarrafa takarda da bugu.
②Kayan sinadarai
Kyakkyawan mannewa tawada mannewa ne muhimmai guda biyu masu mahimmancin abubuwan sinadarai na madaidaicin takarda.A cikin samarwa, abubuwan sinadarai na takarda canja wuri kai tsaye suna shafar ingancin bugu.Idan takardar canja wuri ba za ta iya sanya tawada ta manne da kyau ba, ko kuma adadin tawada ba a ƙware wajen samarwa ba, zai haifar da sharar bugu.Kyakkyawan tsarin bugu da bugu mai kyau dole ne a dogara ne akan kyakkyawar fahimtar sinadarai na takardar canja wuri.
③ Kyakkyawan aikin thermal
Tun lokacin da aka aiwatar da tsarin canja wuri ta hanyar zafin jiki mai girma, kayan aikin takarda dole ne su iya tsayayya da tasirin yanayin zafi da kuma kiyaye kadarorin ba su canzawa.Gabaɗaya magana, ko aikin thermal na substrate na takarda canja wurin thermal yana da kyau ana iya nunawa ta abubuwa masu zuwa:
Ƙananan juriya na zafi mai juriya na zafi, ƙananan kauri, mafi kyawun canja wurin zafi, kuma mafi kyawun aikin zafi;
Smoothness The smoother da substrate surface, da ƙananan zafi juriya da kuma mafi kyau thermal yi;
Zazzabi na shugaban bugu na thermal mai jure zafi gabaɗaya yana kusa da 300 ℃, kuma dole ne substrate ya iya tabbatar da cewa babban aikin baya canzawa a wannan zafin jiki.
Al'amari: Akwai ratsi, filaments, da sauransu akan fim ɗin.
Dalili: Rashin isasshen zafin jiki (rashin lalata silicon), rashin daidaituwa na kaushi.
Cire: Ƙara zafin tanda zuwa tsayayyen tsayi.
Abubuwan da aka bayar na Shanghai Rainbow Industrial Co., Ltdshine masana'anta, kunshin bakan gizo na Shanghai Samar da marufi na kayan kwalliya guda ɗaya.Idan kuna son samfuranmu, zaku iya tuntuɓar mu,
Yanar Gizo:www.rainbow-pkg.com
Email: Bobby@rainbow-pkg.com
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Lokacin aikawa: Oktoba-25-2021