Thaum siv tshuaj ntsuam luam ntawv, tag nrho cov inks hu ua screen printing inks. Volatile drying inks yog cov inks siv tshaj plaws hauv kev tshuaj ntsuam luam ntawv. Lub Cheebtsam ntawm tus cwj mem zaj duab xis yog cov khoom siv polymer. Tom qab luam ntawv, cov kuab tshuaj volatilizes, thiab cov tshuaj polymer tsim cov kua nplaum zaj duab xis. Cov txheej txheem volatilization ziab no yog thim rov qab, uas yog, cov kua nplaum qhuav tuaj yeem rov ua dua nrog cov kuab tshuaj.
1. Ua kom tus nqi pH ntawm tus number case kom zoo kom txo tau qhov ziab nrawm ntawm cov txheej txheem luam ntawv tsis cuam tshuam rau qhov ziab kom qhuav. Tus nqi pH feem ntau yog tswj ntawm 8.5 txog 9.5. Yog tias ziab sai heev, tus nqi pH yuav tsum tau tswj kom siab tshaj 9 los ntawm kev ntxiv cov stabilizer, tab sis nws yuav tsum tsis txhob siab tshaj 9.5, txwv tsis pub cov khoom ntawm tus number case yuav hloov. Qhov nro ntawm tus number case yog qis dua, qhov screen version yuav raug thaiv, thiab ziab yuav qeeb qeeb.
2. Ntxiv tus neeg saib xyuas kom qhuav thiab ua kom nrawm tuaj yeem txo qhov tshwm sim ntawm kev thaiv. Yog tias qhov screen luam ntawv nrawm dhau qeeb, tus number case yuav kis tau ntawm lub phaj luam ntawv, ua rau cov dots lo. Txawm li cas los xij, yog tias tus number case dries sai heev, tus number case yuav tsis tag nrho hloov mus, ua rau cov ntaub ntawv khaws cia nyob ib ncig ntawm cov dots thiab thaiv lub phaj.
3. Nyob rau hauv cov ntaub ntawv uas tsis cuam tshuam rau qhov screen printing ceev, sim cia tus number case qhuav maj mam thaum lub sij hawm luam ntawv txheej txheem. Qhov no tuaj yeem hloov kho nrog tus neeg saib xyuas kom qhuav. Tus nqi ntawm tus neeg ua kom qhuav qeeb ntxiv rau cov inks ntawm cov tuam txhab sib txawv sib txawv, feem ntau tsis tshaj 5 feem pua. Tus number case yuav tuab thiab pH yuav txo qis tom qab ntxiv tus neeg saib xyuas kom qhuav. Yog li ntawd, thaum ntxiv tus neeg saib xyuas kom qhuav qhuav, dej thiab stabilizer yuav tsum tau ntxiv los tswj tus number case viscosity thiab pH nqi.
4. Ntxiv tus neeg saib xyuas kom qhuav tuaj yeem daws qhov khawb ntawm cov ntawv luam tawm thiab cov nplaum nplaum ntawm cov kua roj vanish. Yog hais tias tus number case dries sai heev, tus number case yuav qhuav thiab solidify rau saum npoo ntawm cov ntaub ntawv luam ntawv ua ntej nws nkag mus rau theem nkag, ua rau tsis txaus adhesion thiab tus number case txheej yuav poob yooj yim. Qhov no kuj tuaj yeem hloov kho los ntawm kev hloov cov xim sib lawv liag lossis txo tus number case viscosity.
5. Daim ntawv qhia cov menyuam ua kom sov, uas tuaj yeem ua rau kom qhuav nrawm ntawm cov ntawv luam tawm. Thaum peb siv ntau tus cwj mem rau cov khoom siv tshuaj ntsuam luam ntawv, yog tias lub peev xwm ziab ntawm lub tshuab luam ntawv lub tshuab luam ntawv tsuas yog txwv, qhov ceev tsis ceev thaum nws qhib thawj zaug, thiab muaj qee qhov chaw rau kev txhim kho tom qab lub sijhawm. . Qhov no yog daim ntawv qhia Roller heats li. Tom qab daim ntawv qhia cov menyuam tau rhuab, tus number case yuav tsis yooj yim lo rau nws qhov chaw. Ua ntej pib lub tshuab, tig lub tshuab ziab khaub ncaws ua ntej. Thaum lub tshuab qhib, lub tshuab nqus tsev tuaj yeem muab tua ua ntej, kom cov cuab yeej tuaj yeem khaws cov cua sov siab tshaj plaws hauv lub sijhawm luv. Kev nrawm tuaj yeem nce sai.
