Lub hauv paus ntsiab lus thiab qhov zoo / qhov tsis zoo ntawm Soft Calendering Printing
Hard Roll:Hard rolls muaj xws li rhuab yob thiab txias cam khwb cia yob. Lawv muaj lub siab tawv tawv, zoo ib yam li daim iav, thiab tau ua kom sov sab nraud nrog roj lossis dej, nrog rau qhov kub ntawm 120 txog 200 degrees, nce mus txog 230 degrees hauv qee kis.
Soft Roll:Cov yob mos, categorized li tswj tau nruab nrab-rau-siab yob, muaj qhov chaw ua los ntawm cov polymers tshwj xeeb. Cov ntaub ntawv no yuav tsum tiv taus qhov kub thiab txias, ua kom pom kev zoo elasticity, thiab tswj cov kev hloov pauv ntau zaus. Cov ntaub ntawv muaj xws li epoxy resin, nylon, hluavtaws roj hmab, thiab polyester urethane.
Lub hauv paus ntsiab lus ntawm Soft Calendering:Thaum lub sijhawm ua haujlwm, thaum daim ntawv nkag mus rau hauv kev sib cuag nrog cov rhuab yob, yob hloov cov cua sov rau hauv daim ntawv, nkag mus rau ib qho tseem ceeb qhov tob (feem ntau suav tias yog 0.007μm). Thaum lub sijhawm no, daim ntawv qhov kub thiab txias nce mus txog lossis nce mus txog lub iav softening point. Daim ntawv saum npoo yuav ua tau ntau pliable, thiab nyob rau hauv siab los ntawm cov mos yob, elastic deformation tshwm sim, tsim ib tug nto hu. Lub zog yob, ua haujlwm zoo li cov pwm nias, smoothens thiab glosses daim ntawv nto thaum tuav lub thickness zoo.
Qhov zoo ntawm Soft Calendering:Piv rau hard calendering, soft calendering muaj cov hauv qab no zoo:
Daim ntawv ntom ntom:Mos calendering ua rau cov ntawv nruj nruj. Lub siab modulus ntawm elasticity ntawm lub calendering yob tso cai rau ib tug dav siab cheeb tsam, uas ua rau cov ntaub ntawv nruj dua.
Txhim kho Opacity thiab tshem tawm cov stains:Lub rebound ntawm cov ntaub ntawv yob hloov mus rau ib qho kev tsis sib xws thiab kev hloov pauv ntawm daim ntawv, txhim kho opacity thiab tshem tawm cov stains.
Zoo Ink Absorption:Vim yog daim ntawv nruj nruj, tus number case zaj duab xis nias tawm los ntawm cov mos calendering muaj cov roj zoo thiab zoo ib yam.
Higher Moisture Cov ntsiab lus:Mos calendering txo qhov siab ntawm daim ntawv, tso cai rau cov dej noo ntau dua hauv cov khoom kawg.
Enhanced Bulk Thickness thiab Stability:Mos calendering txhim kho cov tuab ntawm daim ntawv thiab tswj kev ruaj ntseg.
Stability thiab Wide Line Pressure Adjustment Range:Mos calendering muaj kev ruaj ntseg thiab ntau yam ntawm kab kev hloov kho kom tau raws li ntau yam kev xav tau rau calendering tiav.
Txhim kho daim ntawv muaj zog:Raws li cov fibers tsis muaj zog compressed, ntawv lub zog yog kho kom zoo, ua rau lub tshuab khiav ntau dua.
Siab dua Smoothness thiab tshem tawm ntawm ob sab sib txawv:Mos calendering ua tau zoo dua smoothness thiab tshem tawm qhov sib txawv ntawm ob sab.
Sib piv nrog Supercalendering:
Supercalendering muaj qhov siab tshaj plaws qhov kub ntawm 85 degrees, thaum lub calendering mos tuaj yeem ncav cuag qhov kub ntawm 160 txog 200 degrees.
Mos calendering tuaj yeem ua haujlwm ntawm tib lub nrawm raws li lub tshuab ntawv lossis coater yam tsis tas yuav tsum tau txo qis thaum lub web threading.
Cov yob mos muaj lub sijhawm ntev ntawm kev sib tsoo thiab lub neej ntev dua piv rau supercalendering yob.
Kev tswj cov ntawv tuab nrog supercalendering yog qhov nyuaj.
Supercalendering yuav tsum tau hneev taw loj, muaj tus nqi siab rau lub ntsej muag yas thiab sib tsoo yob, thiab muaj kev nqis peev ntau.
Main Disadvantages ntawm Soft Calendering:Lub ntsiab drawback ntawm mos calendering yog nws tsis muaj peev xwm hloov qhov dav ua hauj lwm ib zaug txiav txim. Qhov chaw sab nraud ntawm cov yob mos tuaj rau hauv kev sib cuag ncaj qha nrog lub zog (rhuab) yob, ua rau cov yob mos tuaj yeem raug puas tsuaj. Tsis tas li ntawd, qhov kub thiab txias hauv cheeb tsam tshwm sim vim yog kev sib cuag ntawm sab nraud yob nto nrog cov rhuab yob. Yog tias qhov sib txawv ntawm qhov kub ntawm cov khoom siv tau ntev (feem ntau yog tswj tsis pub dhau 5 degrees), deformation tuaj yeem tshwm sim. Yog li ntawd, nws yog ib qho tseem ceeb kom ntseeg tau tias qhov dav ntawm daim ntawv nkag mus rau hauv qhov chaw siab thaum lub sij hawm tsim khoom.