Cov ntawv wrinkled lossis bulging? Printing curling? Cov ntsiab lus tseem ceeb rau lub caij ntuj sov daim ntawv lo, kos ntawm no!
Cov teeb meem tshwm sim los ntawm kev hloov pauv ntawm cov av noo thaum lub caij ntuj sov, cov av noo ib puag ncig tuaj yeem ua rau muaj ntau yam teeb meem rau cov tuam txhab luam ntawv nplaum nplaum. Yog tias tsis hais raws sijhawm, nws yuav ua rau muaj kev poob loj. Cov teeb meem tshwm sim nrog kev siv daim ntawv nplaum vim cov av noo muaj xws li hauv qab no: 01 Curling Thaum Luam Ntawv Feem ntau cov nplaum nplaum luam ntawv siv UV number case. Tom qab ziab hauv qab lub teeb UV, cov dej noo nyob rau hauv cov nplaum nplaum cov ntaub ntawv yog sai sai poob. Txij li thaum tus nqi shrinkage ntawm daim ntawv lo lub ntsej muag cov ntaub ntawv thiab cov ntawv thaub qab txawv thaum poob dej, nws yog ib qho yooj yim rau cov ntaub ntawv curl. Qhov no tshwm sim tshwj xeeb tshaj yog pom thaum luam ntawv ntawm nyias zaj duab xis nplaum cov ntaub ntawv.Qhov no yog vim lub ntsej muag cov ntaub ntawv ntawm nyias zaj duab xis nplaum daim ntawv lo yog ib zaj duab xis, thaum daim ntawv thaub qab yog ntawv. Thaum lub sij hawm UV ci, cov khoom siv lub ntsej muag tsis plam dej, thaum daim ntawv thaub qab sai sai poob dej thiab ntsws, ua rau cov khoom curl downward. Yog tias lub rooj cob qhia ib puag ncig cov av qis qis, cov ntawv thaub qab tsis tuaj yeem nqus dej noo los ntawm ib puag ncig, thiab qhov teeb meem curling yuav tsis txhim kho, cuam tshuam rau kev tsim khoom.Yog tias lub rooj cob qhia cov av noo yog tswj los ntawm qib tsim nyog, cov khoom, txawm tias sai sai poob dej nyob rau hauv UV teeb, tuaj yeem rov qab ya raws ntawm ib puag ncig. Yog li ntawd, cov khoom siv yuav tsis curl hnyav, thiab kev tsim khoom yuav tsis cuam tshuam loj heev. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tau tswj xyuas cov av noo nyob rau lub caij ntuj sov.02 Curling Tom qab Sheet CuttingMuaj cov nplaum nplaum cov khoom yuav tsum tau txiav rau hauv ib daim ntawv. Qee lub sij hawm, peb pom tias cov ntawv curl sai sai tom qab txiav rau hauv nplooj ntawv, ua rau lub ntim ntim tsis yooj yim. Hauv txoj kev xav, lub ntsej muag cov ntaub ntawv nruj ntawm daim ntawv nplaum yuav tsum tau tso tawm tag nrho tom qab tuag- txiav thiab tshem tawm pov tseg, yog li curling hnyav yuav tsum tsis txhob tshwm sim tom qab txiav rau hauv nplooj ntawv. Yog li dab tsi ua rau qhov teeb meem no?
Qhov tshwm sim no feem ntau tshwm sim los ntawm kev sib xyaw ua ke ntawm cov khoom siv tsis raug thiab kev tswj tsis zoo ntawm cov av noo ib puag ncig. Muaj ntau hom ntawv thaub qab rau tus kheej- cov ntaub ntawv nplaum, xws li ib puag ncig 60g glassine ntawv, ib ncig ntawm 95g coated yas ntawv, thiab ib ncig ntawm 120g cardboard. Hauv txoj cai, nws tsis pom zoo kom siv tus kheej- cov ntaub ntawv nplaum nrog cov ntawv thaub qab hauv qab 80g rau ib zaug - daim ntawv txiav. Qhov no yog vim tias daim ntawv rov qab nyias nyias yog qhov nkag siab dhau ntawm ib puag ncig cov av noo, thiab thaum cov av noo hloov pauv ntau, cov ntawv no tuaj yeem nthuav lossis cog lus nrog cov av noo hloov pauv, ua rau curling hnyav ntawm tus kheej-cov ntaub nplaum tom qab tuag- txiav thiab tshem tawm pov tseg.
Txhawm rau daws qhov teeb meem no, qhov kev daws teeb meem zoo tshaj plaws yog xaiv cov ntawv thaub qab nrog cov grammage siab dua. Qhov siab dua qhov hnyav ntawm daim ntawv thaub qab, qhov tsawg dua nws cuam tshuam los ntawm ib puag ncig cov av noo, ua kom nws yooj yim dua los xyuas kom meej qhov flatness ntawm cov ntawv tom qab ib zaug - ntawv txiav.
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Variation hauv Raw Material Tension
Nyob rau lub caij ntuj sov, peb feem ntau ntsib teeb meem ntawm xoob los yog nruj rolls ntawm raw cov ntaub ntawv, uas feem ntau tshwm sim thaum cov ntaub ntawv raug tshem tawm los siv tom qab muab cia rau ib lub sij hawm. Hauv qhov xwm txheej hnyav, lawv tsis tuaj yeem siv tau.
Qhov no yog vim hais tias cov av noo nyob rau hauv cov huab cua txawv heev nyob rau hauv lub caij ntuj sov. Tom qab tus kheej- cov ntaub nplaum nplaum poob lossis nqus dej noo, lawv qhov nro hloov, ua rau xoob los yog nruj yob. Qee cov ntaub ntawv, tshwj xeeb tshaj yog nyias- zaj duab xis tus kheej- cov ntaub ntawv nplaum, tej zaum yuav tau tsa cov cores thaum siv tib yam.
Yog li ntawd, nyob rau lub caij ntuj sov, nws raug nquahu kom khaws cov khoom me me ntawm tus kheej- cov ntaub nplaum thiab txo lub sijhawm cia, thaum ntxiv dag zog rau kev tswj cov khoom lag luam los ntawm kev ua raws li "thawj-hauv, ua ntej- tawm" txoj cai. Feem ntau, cov ntaub ntawv yuav tsis hloov pauv tseem ceeb hauv 7-10 hnub tom qab tuaj txog, thiab yuav tsum tsis pub tshaj 15 hnub.
Label Wrinkling thiab Bubbling
Lub caij ntuj sov yog lub sijhawm muaj kev tshwm sim siab rau tus kheej- daim ntawv lo ua txhaum, nrog rau wrinkling thiab bubbling yog cov teeb meem tshwm sim rau daim ntawv -raws li tus kheej- cov ntawv nplaum. Yog li, dab tsi ua rau cov teeb meem no?
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Kev poob dej thaum ua tiav
Thaum lub sij hawm ua tus kheej- cov ntaub ntawv nplaum, daim ntawv ntsej muag ntawm tus kheej - cov khoom nplaum poob qee qhov dej tom qab raug UV kho, ua rau cov dej tsis tshua muaj nyob hauv cov ntawv tiav. Thaum cov neeg siv kawg siv cov ntawv sau tam sim ntawd tom qab qhib lub ntim, cov ntawv sau cov dej noo ntawm huab cua, o, thiab nthuav, uas ua rau wrinkling los yog bubbling nyob rau hauv cov cheeb tsam nthuav.
Txhawm rau tiv thaiv qhov teeb meem no, txoj hauv kev zoo tshaj plaws yog rov ua kom dej noo rau tus kheej -cov ntaub ntawv nplaum thaum ua haujlwm. Qhov no tuaj yeem ua tau los ntawm kev tso cov av noo ntawm yob - chaw nres tsheb kom ntub cov ntawv thaub qab. Rau cov tuam txhab uas tsim nyog, nws raug nquahu kom nruab qhov ntsuas kub thiab av noo hauv kev cob qhia kom paub tseeb tias cov ntawv ua tiav tswj cov dej noo ib txwm muaj.
02
Kev cia khoom tsis raug coj mus rau feem ntau, tom qab luam ntawv, tus kheej- cov ntawv nplaum tau ntim rau hauv hnab yas lossis qhwv nrog zaj duab xis ntsws, zoo cais tawm ntawm ib puag ncig sab nraud. Txawm li cas los xij, thaum lub caij ntuj sov, cov nag nquag tuaj yeem ua rau huab cua nce sai sai. Yog tias cov ntawv sau tau siv rau lub sijhawm no, lawv tuaj yeem nqus dej noo los ntawm huab cua tom qab tau affixed, ua rau wrinkles thiab bubbling.Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tau xyuam xim thaum khaws cov khoom tiav ntawm tus kheej - nplaum nplaum thaum lub caij ntuj sov. Nws raug nquahu kom qhib lub ntim 24 teev ua ntej siv, tso cai rau cov ntawv thiab cov chaw uas lawv yuav raug siv los khaws cia rau hauv ib puag ncig rau 24 teev. Qhov no pab sib npaug ntawm lawv cov av noo thiab ua kom zoo ntawm daim ntawv thov daim ntawv lo. Cov txheej txheem no yog qhov tsim nyog tshwj xeeb tshaj yog thaum sau cov thawv ntawv corrugated los lav cov txiaj ntsig zoo.