Kev tshuaj ntsuam luam ntawv yog txheej txheem ceev; Txawm hais tias koj tab tom tshuaj ntsuam luam ntawv t-shirts, ntawv xov xwm, lossis khoom siv hluav taws xob, yuav tsum tau ua tiav. Yog li, high precision automatic screen printing khoom yog qhov nrov tshaj plaws hauv kev lag luam no. Ntawm txhua yam uas tau tshuaj ntsuam luam tawm, electronics yog ib qho ntawm, yog tias tsis yog qhov tseem ceeb tshaj plaws. Lub vijtsam luam tawm cov kab hluav taws xob yuav tsum ua tau raws li cov neeg siv khoom dav thiab cov kev xav tau, cov duab sib tshooj yuav tsum zoo nkauj thiab zoo meej. Los ntawm thawj qhov kev khiav mus txog qhov kawg, nws yog ib qho tseem ceeb uas cov duab uas tau tshuaj ntsuam luam tawm kom zoo ib yam thiab zoo. Kev yug me nyuam yog qhov tseem ceeb! Vility CCD sau npe screen tshuab luam ntawv yog tus nqi zoo tshaj plaws.
Muaj 3 yam tseem ceeb uas ua si los xyuas kom muaj me nyuam: kev xaiv mesh, npo nro, & emulsion.
Mesh xaiv
Ob hom mesh feem ntau yog polyester thiab stainless hlau, lawv txhua tus muaj lawv qhov zoo thiab qhov tsis zoo.
1) Thaum cov hlau tsis muaj steel tuaj yeem ncav cuag lub zog siab dua li polyester mesh, polyester tuaj yeem ncav cuag lub siab txaus kom ua tiav cov haujlwm nruj nruj.
2) Stainless hlau threads yog me ntsis thinner dua polyester xov, qhov no tsim ntau "qhib cheeb tsam" ntawm stainless hlau mesh. Qhov chaw qhib ntau tso cai rau ntau tus number case ntws los ntawm qhov screen. Vim li no, cov hlau tsis muaj hlau mesh nrog cov xov tooj ntau dua tuaj yeem siv thiab ua rau tib tus cwj mem tso nyiaj li polyester mesh nrog cov xov qis dua - qhov no yuav los ua si nrog cov kab nyias (zoo kab luam ntawv), los yog xav tau. zoo dua ntug txhais.
3) Stainless hlau mesh yog kim piv rau polyester, raws li yog cov ntxaij vab tshaus yuav tsum tau rau cov stainless hlau (tsis hais ntau hnyav dua li cov thav ntawv siv polyester).
Txawm hais tias stainless mesh tsis rips yooj yim li polyester, nws tsis dents. Kev saib xyuas yuav tsum tau siv thaum tuav.
Stainless hlau tej zaum yuav zoo li qhov kev xaiv standout, tab sis polyester mesh ua tau zoo heev thiab yog siv rau feem ntau ntawm peb cov khoom tam sim no. Tsis tsuas yog nws muaj txiaj ntsig zoo dua li stainless, tab sis peb feem ntau tuaj yeem ua tiav qhov xav tau ntawm ntug txhais thiab tus number case nteg. Kev siv cov hlau tsis muaj steel yog tsim tsav.
Screen Tension
Lub vijtsam nro plays lub luag haujlwm tseem ceeb hauv qhov zoo ntawm cov khoom lag luam luam tawm.
1) Kev nruj siab (nruj npo) muab kev tswj xyuas zoo dua li kev tswj xyuas cov duab kom zoo, lub ntsiab lus, cov duab luam tawm tsis tshua muaj zog thaum lub sijhawm luam tawm.
2) Kev nruj siab qiv nyiaj kom zoo dua sau npe rau ib daim ntawv luam tawm mus rau lwm qhov kev luam tawm (kom ua tiav qhov no, ob daim ntawv luam tawm yuav tsum muaj cov ntxaij vab tshaus uas yuav luag tib yam nruj).
Mesh cov neeg muag khoom yuav muab cov qib nro pom zoo rau txhua qhov sib txawv mesh suav; tension meters yog siv los saib xyuas lub mesh thaum lub sij hawm stretching txheej txheem los xyuas kom meej qhov nro pom zoo tiav.
Polyester mesh yog stretched mus rau ib tug siab nro, ces glued mus rau lub hlau ncej. Hlau mesh yog tsis glued rau ib tug hlau ncej, lub thav duab yuav vau vim qhov nro thiab lub zog ntawm lub mesh. Cov thav ntawv siv rau stainless yog nws tus kheej-tensioning - mesh yog nteg nyob rau hauv lub thav duab, cov npoo ntawm lub mesh yog muab tso rau hauv raws nyob rau hauv tus ncej. Cov channel yog tom qab ntawd rub los siv nro rau lub mesh.
Yog tias qhov nro poob ntawm qhov tshwj xeeb thaum lub sijhawm luam ntawv, cov channel ntawm stainless hlau cov ntxaij vab tshaus tuaj yeem rub nruj dua kom tau lub vijtsam rov qab mus rau qhov nro kom raug. Txawm li cas los xij, yog tias qhov nro poob thaum luam ntawv ntawm lub vijtsam polyester, vim tias lub mesh yog glued, lub vijtsam tshiab yuav tsim nyog.
Emulsion
Emulsion yog txheej txheej txheej yees duab tso rau ntawm lub mesh kom paub meej tias cov duab uas tau tshuaj ntsuam luam tawm yog tib yam uas tau luam tawm. Thaum cov emulsion tau siv rau qhov screen, lub teeb UV yog siv los kho (aka harden) cov cheeb tsam ib ncig ntawm daim duab. Tom qab ntawd, thaum lub vijtsam raug siv rau ntawm cov xovxwm luam ntawv, tus number case dej nyab lub vijtsam thiab raug thawb los ntawm qhov chaw tsis muaj emulsion.
Muaj ob hom emulsion:
1) Direct emulsion - kua lub xeev; qhov no yog siv rau lub mesh siv lub tshuab tsis siv neeg txheej.
2) Capillary zaj duab xis - lub xeev ruaj khov; qhov no yog siv rau qhov screen hauv daim ntawv. Capillary zaj duab xis feem ntau muab cov tuab tuab ntawm emulsion ntau dua li cov txheej txheem ncaj qha, uas tuaj yeem ua rau cov lus txhais tau zoo dua hauv cov txheej txheem luam ntawv. Txawm li cas los xij, cov txheej txheem kev ua haujlwm hnyav ntawm kev ua raws li cov yeeb yaj kiab capillary rau lub mesh yog kim piv rau emulsion ncaj qha.
Kev yug me nyuam yog qhov tseem ceeb heev thiab tuaj yeem ua tiav yog tias tsim nyog lub vijtsam luam ntawv teeb tsa, thiab cov txheej txheem raug ua raws, kom ntseeg tau tias txhua qhov kev luam tawm zoo ib yam, txij li thawj zaug mus rau qhov kawg. Tiv tauj peb hnub no yog tias koj xav tau ib tus neeg muag khoom siv tshuaj ntsuam luam ntawv tiag tiag, txhua kauj ruam ntawm cov txheej txheem. Vility tsis yog tsuas yog muaj peev xwm muab siab precision ruaj khov npo luam ntawv xovxwm, tab sis kuj muaj peev xwm muab thev naus laus zis, muab kev daws teeb meem ib zaug.
