Daim ntawv dawb rau cov ntawv luam yeeb yuav tsum muaj qhov tawv heev, tsis yooj yim tawg, du thiab dawb. Daim ntawv yuav tsum tiaj tus, tsis pub muaj kab txaij, pob, pob, warping thiab deformation. Raws li cov ntawv luam yeeb nrog daim ntawv dawb. Lub tshuab luam yeeb feem ntau siv lub tshuab luam ntawv gravure ceev ceev los luam ntawv, yog li cov ntawv dawb yuav tsum muaj qhov siab. Lub zog tensile, tseem hu ua lub zog tensile lossis lub zog tensile, yog qhov siab tshaj plaws uas daim ntawv tuaj yeem tiv taus thaum lub sijhawm tawg, qhia hauv kN / m. Lub tshuab luam ntawv gravure ceev ceev kom rub cov ntawv yob, kev luam ntawv ceev ceev kom tiv taus qhov nruj dua, yog tias muaj qhov tshwm sim ntawm daim ntawv tawg ntau zaus, yuav ua rau muaj kev nres ntau zaus, txo qis kev ua haujlwm, tab sis kuj ua rau daim ntawv poob ntau ntxiv.
Muaj ob homdaim ntawv dawb rau cov ntawv luam yeeb, ib qho yog FBB (daj core dawb cardboard) thiab lwm qhov yog SBS (dawb core dawb cardboard), ob qho tib si FBB thiab SBS tuaj yeem siv rau cov pob luam yeeb yog ib sab coated dawb cardboard.
FBB muaj peb txheej ntawm cov pulp, cov txheej sab saud thiab hauv qab siv cov ntoo sulfate pulp, thiab txheej plawv siv cov tshuaj lom neeg sib tsoo ntoo pulp. Sab pem hauv ntej (sab luam ntawv) yog coated nrog ib txheej txheej uas siv ob lossis peb lub squeegees, thaum sab nraub qaum tsis muaj txheej txheej. Txij li thaum txheej nruab nrab siv cov tshuaj lom neeg thiab tshuab sib tsoo ntoo pulp, uas muaj cov ntoo ntau (85% txog 90%), cov nqi tsim khoom qis, thiab yog li ntawd tus nqi muag ntawm cov txiaj ntsigFBB daim ntawvyog qhov tsawg heev. Cov pulp no muaj cov fibers ntev dua thiab cov fibers zoo dua thiab cov fiber bundles tsawg dua, ua rau daim ntawv tiav tuab zoo, yog li FBB ntawm tib lub grammage yog tuab dua li SBS, uas feem ntau muaj peb txheej ntawm pulp, nrog rau sulfur-bleached ntoo pulp siv rau lub ntsej muag, lub hauv paus, thiab cov txheej rov qab. Lub pem hauv ntej ((sab luam ntawv)) yog coated, thiab zoo li FBB kuj yog coated nrog ob lossis peb squeegees, thaum sab rov qab tsis muaj txheej txheej. Txij li thaum lub hauv paus txheej kuj siv bleached sulfate ntoo pulp, nws muaj qhov dawb dua thiab yog li ntawd hu ua dawb core daim npav dawb. Tib lub sijhawm, cov pulp fibers zoo, daim ntawv yog tighter, thiab SBS yog thinner dua li qhov tuab ntawm FBB ntawm tib lub grammage.
Daim npav luam yeeb, los yogdaim ntawv dawbrau cov luam yeeb, yog daim ntawv dawb zoo coated tshwj xeeb siv rau kev ua cov ntaub ntawv ntim luam yeeb. Daim ntawv tshwj xeeb no tau ua tiav thiab tsim ua tiav los ntawm cov txheej txheem nruj, thiab nws lub luag haujlwm tseem ceeb yog muab cov luam yeeb nrog cov ntim sab nraud zoo nkauj, huv si thiab tiv thaiv. Raws li ib feem tseem ceeb ntawm cov khoom luam yeeb, daim npav luam yeeb tsis yog tsuas yog ua tau raws li qhov xav tau yooj yim ntawm cov khoom ntim khoom, tab sis kuj paub txog qhov zoo nkauj ntawm lub npe vim nws txoj kev kho tshwj xeeb thiab kev luam ntawv.
Cov yam ntxwv
1. Khoom siv thiab ntau npaum li cas.
Daim npav luam yeeb muaj qhov ntau, feem ntau siab dua 200g / m2, uas ua kom muaj qhov tuab thiab lub zog txaus los txhawb thiab tiv thaiv cov luam yeeb sab hauv.
Nws cov qauv fiber yog sib xws thiab ntom, ua los ntawm cov ntoo zoo, thiab ntxiv cov khoom sau thiab cov nplaum kom raug kom ntseeg tau tias daim ntawv yog ob qho tib si nyuaj thiab muaj kev ua haujlwm zoo.
2. Txheej thiab calendering.
Cov txheej txheem calendering ua rau qhov chaw tiaj tus thiab du, ua rau daim ntawv tawv thiab ci ntsa iab, thiab ua rau cov ntawv luam yeeb zoo nkauj dua.
3. Cov khoom siv tshuaj lom neeg.
Daim npav luam yeeb muaj qhov tiv taus kev quav thiab kev rhuav zoo heev, ua kom tsis muaj kev tawg hauv cov txheej txheem ntim khoom ceev ceev. Nws muaj cov khoom nqus tau zoo thiab ziab rau cov kua mem, uas yog qhov zoo rau kev luam ntawv sai thiab tiv thaiv cov kua mem nkag mus.
Nws ua tau raws li qhov yuav tsum tau ua ntawm cov cai tswjfwm kev nyab xeeb zaub mov, tsis muaj ntxhiab tsw thiab tsis muaj cov tshuaj lom neeg rau tib neeg lub cev, uas tiv thaiv kev nyab xeeb ntawm cov neeg siv khoom.
4. Kev tiv thaiv ib puag ncig thiab kev tiv thaiv kev cuav.
Nrog kev paub ntau ntxiv txog kev tiv thaiv ib puag ncig, kev tsim daim npav luam yeeb niaj hnub no feem ntau siv cov peev txheej rov ua dua tshiab thiab txo cov pa phem ib puag ncig.
Qee cov khoom lag luam luam yeeb zoo kuj tseem siv cov thev naus laus zis tiv thaiv kev cuav, xws li cov txheej txheem tshwj xeeb, cov xim fibers, cov qauv laser, thiab lwm yam, los daws qhov teeb meem loj zuj zus ntawm kev cuav.
Cov ntawv thov
Cov thawv ntim khoom tawv: Siv rau hauv kev tsim ntau hom thawv luam yeeb tawv, txheej sab hauv kuj tseem yuav raug laminated nrog ntawv ci txhuas thiab lwm yam khoom siv los ua kom cov khoom thaiv zoo dua. Cov pob mos: Txawm hais tias tsis tshua muaj, daim npav luam yeeb kuj tseem siv tau ua cov ntaub qhwv lossis kaw hauv qee cov pob mos ntawm cov luam yeeb.
Kev Tsim Hom Lag Luam: Los ntawm kev luam ntawv zoo thiab kev tsim qauv tshwj xeeb, daim npav luam yeeb pab cov tuam txhab luam yeeb nthuav qhia lawv lub npe lag luam thiab txhim kho kev sib tw ua lag luam.
Cov kev cai lij choj thiab kev cai lij choj: Nrog rau cov kev cai nruj dua ntawm kev ntim khoom haus luam yeeb hauv ntau lub tebchaws, daim npav luam yeeb kuj yuav tsum ua raws li qhov yuav tsum tau ua kom pom tseeb cov lus ceeb toom kev noj qab haus huv thiab nyuaj rau kev hloov pauv.
Lub sijhawm tshaj tawm: Lub Xya Hli-22-2024