Taw qhia: Cov txheej txheem hloov hluav taws xob, ib qho txheej txheem hauv kev kho cov khoom siv kom zoo nkauj, vim tias nws yooj yim los luam tawm, thiab cov qauv xim tuaj yeem kho tau. Nws yog tus txheej txheem uas cov tswv lag luam nyiam. Cov hauv qab no yog kho los ntawmRB pob.Cia peb faib qee qhov teeb meem zoo ib yam thiab cov kev daws teeb meem ntxiv rau qhov cuam tshuam ntawm thermal, rau koj siv hauv cov khoom siv khoom ntawm koj:
Tshav kub hloov
Thermal hloov cov txheej txheem hais txog daim ntawv hloov pauv nrog pigments los yog ua kom muaj zog thiab lwm txoj hauv kev los hloov cov qauv txheej txheem ntawm cov qauv luam ntawv. Tus txheej txheem yooj yim ntawm kev hloov pauv thermal yog txhawm rau hu ncaj qha rau mem-coated nruab nrab nrog lub substrate. Los ntawm cua sov thiab nias lub taub hau luam ntawv thiab lub tog raj kheej pom, lub npe ntawm lub nruab nrab yuav yaj thiab hloov mus rau cov kev xav tau ntawm cov ntawv luam tawm.
01Zom cov ntsiab lus ntawm thermal hloov
1) Sov Luam Ntawv Taub Hau
Lub taub hau thermal luam tawm yog tsuas yog tsim ntawm cov npoo npoo av tiv thaiv zaj duab xis tiv thaiv txheej, hauv qab nplaum cov duab zaj duab xis tiv khoom thiab cov cua sov. Lub cua sov yog cov duab lo lo ntxhuav. Nrog kev pab los ntawm cov cua sov tsim los ntawm cov mem tes hluav taws xob, cov ntxhib ntawm lub number case txheej ntawm cov duab nraaj yog embossed thiab melted kom tiav tus kua mem.
Kev luam ntawv ceev ntawm thermal hloov chaw nyob ntawm seb lub sijhawm yuav tsum muaj rau txhua kab ntawm cov duab thiab cov ntawv nyeem. Yog li ntawd, cov thermal hloov lub taub hau thiab daim ntawv hloov yuav tsum muaj kev hloov cua sov los ntawm cov ntawv cua sov los ntawm cov ntawv cua sov thiab cov kis thiab thaum kawg mus rau saum npoo ntawm substrate los xyuas kom meej Tias tus mem kua muaj sijhawm hloov chaw txaus.
2) cwj mem
Qhov muaj pes tsawg leeg ntawm cov kua mis hloov hluav taws xob feem ntau yog peb ntu: xim pig (xim lossis zas), siv quav ciab, ntawm cov roj, cov roj yog qhov tseem ceeb ntawm cov number case thermal. Qhov yooj yim muaj pes tsawg leeg ntawm cov pa thermal hloov khoom tuaj yeem xa mus rau rooj 1.
Rooj 2 yog ib qho piv txwv ntawm lub vijtsam luam ntawv kub hloov numps numps. N-methoxymethyl polyamide yog yaj nyob rau hauv benzyl cawv, etonite tau ntxiv rau stirring, thiab tom qab ntawd hauv av rau hauv screen Printing inks. Tus num luam ntawv yog luam tawm ntawm cov tsheb thauj khoom (xws li Thermal Transpage Ntawv) Siv lub vijtsam luam ntawv, thiab tom qab ntawd cov ntaub yog thermally nias thiab hloov.
Thaum luam ntawv, viscosity ntawm cov inks sib txawv yog ncaj qha rau qhov kub kub, thiab cua sov thiab lub viscosity ntawm tus number cas yuav tsum yog kev tswj hwm nruj me ntsis. Kev xyaum tau ua pov thawj tias thaum lub cua sov kub yog 60 ~ 100 ℃, thaum lub num vawj muaj txiaj ntsig ntawm tus number case, thaum lub num vawj muaj txiaj ntsig zoo txog li 0.6 PAAs, uas yog qhov zoo tshaj plaws. Feem ntau hais lus, lub num ze ze yog rau lub xeev no, qhov zoo dua kev hloov pauv kev ua tau zoo.
Nyob rau hauv xyoo tsis ntev los no, nrog kev txhim kho ntawm Shanghai Rainbow Pob thev naus laus zis, qhov kub tau nce los ntawm tus thawj 45 ℃, uas tau nthuav dav tau ntau cov ntawv thov ntau yam ntawm kev hloov pauv thermal. Ib qho ntxiv, kev siv cov xim pob tshab los yog pob tshab zas muab cov nyhuv HUEs zoo rau cov xim luam ntawv.
3) Hloov chaw tshaj tawm
Txawv cov substrates muaj cov khoom sib txawv, yog li thaum xaiv cov ntawv hloov pauv, koj yuav tsum xyuam xim rau cov khoom siv hauv qab no ntawm substrate.
①physical kev ua haujlwm
Lub zog ntawm lub cev ntawm daim ntawv hloov pauv tau qhia hauv Table 3.
Qhov saum toj no yog lub cev lub cev ntawm peb thermal hloov ntaub ntawv substrates. Peb yam hauv qab no yuav raug txiav txim siab thaum xaiv:
Lub thickness ntawm substrate feem ntau yuav tsum feem ntau tsis muaj ntau dua 20 μm;
Lub substrate yuav tsum muaj qib siab ntawm smoothness kom ntseeg tau tus nqi hloov ntawm tus cwj mem;
Lub substrate yuav tsum muaj lub zog txaus los xyuas kom meej tias nws yuav tsis raug muab txhuam thaum lub sijhawm ua haujlwm thiab luam tawm.
②chemical cov yam ntxwv
Zoo thiab txawm tias ink adksion yog ob qho tseem ceeb tshaj plaws ntawm cov tshuaj lom neeg ntawm daim ntawv hloov chaw. Hauv kev tsim khoom, cov tshuaj lom neeg ntawm cov ntawv hloov ncaj qha cuam tshuam qhov zoo ntawm kev luam ntawv. Yog tias daim ntawv hloov pauv tsis tuaj yeem ua rau tus number case ua kom zoo, lossis tus lej ntawm tus cwj mem tsis muaj peev xwm ua lag luam, nws yuav ua rau cov khoom khib nyiab. Cov txheej txheem luam tau zoo thiab cov ntawv luam zoo yuav tsum yog ua raws cov tshuaj zoo ntawm cov tshuaj lom neeg ntawm daim ntawv hloov chaw.
③good thermal kev ua tau zoo
Txij li thaum hloov cov txheej txheem hloov tau pom zoo los ntawm kev kub siab txhais tau tias, cov khoom siv ntawm cov ntawv hloov yuav tsum muaj peev xwm tiv thaiv tus cawv hloov thiab ua kom cov khoom tsis hloov pauv. Feem ntau hais lus, seb qhov kev ua haujlwm thermal ntawm cov txheej txheem ntawm cov ntawv hloov chaw hloov hluav taws xob yog qhov xav tau zoo los ntawm cov hauv qab no:
Qhov qis dua cov cua sov tsis kam ntawm cov cua sov-resistant substrate, lub thinner lub thickness, zoo dua cov cua sov hloov pauv, thiab qhov zoo dua nws cov kev ua tau zoo ntawm thermal;
Smoonting lub smoother lub substrate nto, qis dua cov kub ua kom tsis kam thiab zoo dua cov kev ua tau zoo ntawm thermal;
Qhov ntsuas kub ntawm tshav kub-resisthare thermal sau lub taub hau yog feem ntau nyob ib ncig ntawm 300 ℃, thiab lub substrate yuav tsum muaj tau tias kev ua tau tseem ceeb tsis hloov ntawm qhov kub no.
4) substrate
Substrates nrog me ntsis ntxhib saum npoo muaj zoo luam tau zoo, uas yog qhov tseem ceeb ntawm thermal hloov. Vim hais tias qhov ntxhib saum npoo ntawm substrate qhia tau tias lub substrate muaj lub zog loj loj, cov number case ntawm cov ntawv hloov mus los tau hloov mus rau theem zoo, thiab cov suab nrov zoo nkauj thiab cov laus tuaj yeem tau txais; Tab sis kev ntxhib heev yuav cuam tshuam rau qhov tsis zoo rau lub cev tsis zoo yog tsis muaj txiaj ntsig zoo rau kev paub txog cov txheej txheem luam ntawv.
02Cov khoom lag luam tsis zoo
1) Tus qauv tshwm nyob rau ntawm daim ntawv qhia txog
Tshwm sim: me ntsis thiab cov qauv tshwm sim ntawm nplooj ntawv no.
Vim li cas: Ink viscosity yog tsawg dhau, SqueeGee lub kaum sab xis tsis yog tsim nyog, number case qhuav, hluav taws xob hluav taws xob, thiab lwm yam.
Kev tshem tawm: Ua kom cov viscosity, kho lub kaum sab xis ntawm cov scraper, nce qhov kub ntawm lub qhov cub, thiab pre-tsho lub tshuab hluav taws xob nyob sab nraum qab ntawm zaj duab xis.
2) napping
Qhov tshwm sim: pob zeb zoo li kab tshwm nyob rau ntawm ib sab ntawm cov qauv, feem ntau tshwm sim ntawm tus mem kua dawb thiab ntawm ntug ntawm tus qauv.
Cov laj thawj tseem ceeb: Ink Xim cov xim yog qhov loj, lub num viscosity yog qhov hluav taws xob siab, thiab lwm yam.
Kev tshem tawm: Lim lub number case thiab tshem tawm cov squeeGee kom txo tau cov siab; Tus mem kua dawb tuaj yeem ua tau zoo rau electrostatatically kho cov yeeb yaj kiab, siv cov duab sib tsoo, siv cov phaj ntse ntse los txhuam ntawm lub zuaj thiab lub phaj, lossis ntxiv ib tus neeg sawv cev electrostatic.
3) Kev sau npe xim tsis zoo, pom hauv qab
Qhov tshwm sim: pab pawg sib txawv pab pawg tshwm sim thaum ob peb cov xim muaj cov superimposed, tshwj xeeb tshaj yog nyob rau cov xim tom qab.
Vim li cas cov laj thawj tseem ceeb: lub tshuab nws tus kheej muaj qhov tsis zoo thiab hloov pauv; Cov phaj tsis zoo ua rau ua; tsis muaj peev xwm nthuav dav thiab kev cog lus ntawm cov xim tom qab.
Tshem tawm: Siv lub teeb ua rau lub teeb rau sau npe rau tus kheej; rov ua cov phaj; Nthuav thiab cog lus raws li kev pom ntawm kev pom ntawm tus qauv, lossis tsis muaj dawb-tawm hauv ib qho me me ntawm tus qauv.
4) Tus number case tsis meej
Qhov tshwm sim: lub ntsej muag tshwm ntawm cov ntawv sau ua yeeb yaj kiab.
Yog vim li cas: Tus tuav daim scraper tau xoob; Cov txheej txheem tsis huv.
Kev tshem tawm: Rov kho cov scraper thiab kho cov riam nrog; Ntxuav lub tshuab luam ntawv nrog kev tshem tawm hmoov yog tias tsim nyog; Nruab nras ua pa hluav taws xob nruab nrab ntawm phaj thiab cov scraper.
5) Cov xim luam ntawv xim poob
Qhov tshwm sim: xim peeking tshwm sim hauv cov qauv hauv zos ntawm cov qauv sib txawv, tshwj xeeb tshaj yog nyob ntawm pretreatic zaj duab xis ntawm luam iav thiab stainless hlau.
Cov laj thawj: txheej txheej txheej nws tus kheej yog tev tawm thaum luam tawm ntawm zaj duab xis txheej; hluav taws xob zoo li qub; Cov xim kua qaub yog tuab thiab tsis txaus qhuav.
Kev tshem tawm: Ua kom qhov kub ntawm qhov cub thiab txo qhov nrawm.
6) Kev tsis muaj zog sai sai thaum hloov chaw
Qhov tshwm sim: cov xim txheej hloov ntawm cov txheej txheem yog yooj yim rub tawm ntawm daim kab xev siv rau kev sim.
Vim li cas: cais tsis raug cais lossis rov qab, feem ntau vim tias rov qab tsis phim cov substrate.
Kev tshem tawm: Rov qab hloov cov khoom nplaum tso tawm (yog tias tsim nyog, kho); Hloov cov nplaum tom qab uas phim cov khoom siv hauv paus.
7) anti-nplaum
Qhov tshwm sim: tus kav dej peels tawm thaum rov ua dua, thiab lub suab nrov.
Cov laj thawj: Ntau lub tshuab cua hlob heev, tsis tiav lub tshuab ziab khaub ncaws, cov hluav taws xob tsis zoo, hluav taws xob zoo li qub, thiab lwm yam.
Kev tshem tawm: txo cov winding nro, lossis tsim nyog txo cov luam ntawv ceev kom ua kom qhuav, tswj lub sab hauv tsev sov thiab av noo lub zog hluav taws xob.
8) Tso Tes Taw
Qhov tshwm sim: irregularly nco qab cov dots (zoo ib yam li tsis tuaj yeem luam tawm) tshwm sim ntawm lub vev xaib ntiav ntiav.
Vim li cas: tus mem kua tsis nce.
Kev tshem tawm: Ntxuav cov txheej txheem, siv cov electrostatic nqus cov menyuam, kho kom haum rau cov squeeGee, thiab kho kom haum rau cov num viscosity ntawm tus num viscosity yam tsis muaj kev cuam tshuam rau lwm yam mob.
9) Kub, nyiaj, thiab cov hlaws thiab pearlesctrict pom txiv kab ntxwv tev-zoo li ripples thaum lub tshuab luam ntawv
Qhov tshwm sim: Kub, nyiaj, thiab Pearl feem ntau muaj txiv kab ntxwv tev-zoo li ripples nyob rau thaj chaw loj.
Vim li cas: Qhov kub, thiab cov hlaws nchaum yog cov kuj tseem ceeb thiab tsis tuaj yeem ua rau lub taub hau tsis sib xws, ua rau tsis sib luag.
Kev Ntaus Tseg: Ua ntej luam ntawv, tus number case yuav tsum tau hais tseg, thiab tus mem kua yuav tsum tau thov rau cov kua mem nrog lub tshuab nqus dej, thiab cov yas raj yas tso rau ntawm lub taub hau; Txo cov luam ntawv ceev.
10) Tsis muaj txiaj ntsig ntawm kev luam qib
Qhov tshwm sim: cov qauv nrog kev hloov pauv loj dua (xws li 15% - 100%) feem ntau ua tsis tau zoo hauv lub suab tsaus, lossis pom tseeb hauv cov suab nruab nrab.
Yog vim li cas: cov kev hloov pauv ntawm cov dots yog loj heev, thiab cov kua mem kua nplaum rau zaj duab xis tsis zoo.
Tshem tawm: Siv hluav taws xob daws cov menyuam; Faib ob daim hlau.
11) Cov kab ntawm cov ntawv luam tawm yog lub teeb
Qhov tshwm sim: cov xim ntawm cov khoom luam tawm yog sib dua dua li cov qauv, tshwj xeeb tshaj yog thaum luam ntawv nyiaj.
Vim li cas: Ink viscosity yog tsawg heev.
Tshem tawm: Ntxiv cov mem kua nyoos kom nce ink viscosity rau tus nqi tsim nyog.
12) Cov ntawv dawb muaj jagged sawv
Qhov tshwm sim: Jagged sawv feem ntau tshwm sim ntawm cov npoo ntawm cov ntawv uas yuav tsum tau dawb huv.
Vim li cas: cov lus hais thiab cov pigments ntawm number case tsis zoo txaus; Lub piscosity ntawm tus number cas yog tsawg, thiab lwm yam.
Tshem tawm: kom tshem riam lossis ntxiv cov quav ntxiv; Kho lub kaum sab xis ntawm SqueeGee; nce cov viscosity ntawm number cas; Hloov lub electro-engraving phaj mus rau ib lub phaj laser.
13) Tsis Muaj Txheej Txheem Ntawm Cov Khaub Ncaws Ua Ntej Ntawm Cov Hlau Stainless (Silicone Txheej)
Pretreatment ntawm zaj duab xis (Silicon Txheej) feem ntau nqa tawm ua ntej luam tawm cov kua member tsis muaj kev daws teeb meem (cov number case txheej yog nyob rau ntawm zaj duab xis thaum ntsuas kub yog saum 145 ° C). Nyuaj rau hauv tev).
Qhov saum toj no yog lub cev lub cev ntawm peb thermal hloov ntaub ntawv substrates. Peb yam hauv qab no yuav raug txiav txim siab thaum xaiv:
Lub thickness ntawm substrate feem ntau yuav tsum feem ntau tsis muaj ntau dua 20 μm;
Lub substrate yuav tsum muaj qib siab ntawm smoothness kom ntseeg tau tus nqi hloov ntawm tus cwj mem;
Lub substrate yuav tsum muaj lub zog txaus los xyuas kom meej tias nws yuav tsis raug muab txhuam thaum lub sijhawm ua haujlwm thiab luam tawm.
②chemical cov yam ntxwv
Zoo thiab txawm tias ink adksion yog ob qho tseem ceeb tshaj plaws ntawm cov tshuaj lom neeg ntawm daim ntawv hloov chaw. Hauv kev tsim khoom, cov tshuaj lom neeg ntawm cov ntawv hloov ncaj qha cuam tshuam qhov zoo ntawm kev luam ntawv. Yog tias daim ntawv hloov pauv tsis tuaj yeem ua rau tus number case ua kom zoo, lossis tus lej ntawm tus cwj mem tsis muaj peev xwm ua lag luam, nws yuav ua rau cov khoom khib nyiab. Cov txheej txheem luam tau zoo thiab cov ntawv luam zoo yuav tsum yog ua raws cov tshuaj zoo ntawm cov tshuaj lom neeg ntawm daim ntawv hloov chaw.
③good thermal kev ua tau zoo
Txij li thaum hloov cov txheej txheem hloov tau pom zoo los ntawm kev kub siab txhais tau tias, cov khoom siv ntawm cov ntawv hloov yuav tsum muaj peev xwm tiv thaiv tus cawv hloov thiab ua kom cov khoom tsis hloov pauv. Feem ntau hais lus, seb qhov kev ua haujlwm thermal ntawm cov txheej txheem ntawm cov ntawv hloov chaw hloov hluav taws xob yog qhov xav tau zoo los ntawm cov hauv qab no:
Qhov qis dua cov cua sov tsis kam ntawm cov cua sov-resistant substrate, lub thinner lub thickness, zoo dua cov cua sov hloov pauv, thiab qhov zoo dua nws cov kev ua tau zoo ntawm thermal;
Smoonting lub smoother lub substrate nto, qis dua cov kub ua kom tsis kam thiab zoo dua cov kev ua tau zoo ntawm thermal;
Qhov ntsuas kub ntawm tshav kub-resisthare thermal sau lub taub hau yog feem ntau nyob ib ncig ntawm 300 ℃, thiab lub substrate yuav tsum muaj tau tias kev ua tau tseem ceeb tsis hloov ntawm qhov kub no.
Qhov tshwm sim: Muaj cov kab txaij, cov ntsiab lus, thiab lwm yam ntawm zaj duab xis.
Vim li cas: qhov kub tsis txaus (tsis txaus ntseeg (tsis txaus ntseeg
Tshem tawm: nce qhov ntsuas kub ntawm qhov cub kom muaj qhov siab ruaj khov.
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Lub Sijhawm Post: Oct-25-2021