Cov yam ntxwv thiab kev txawj luam ntawv ntawm cov kua dej ua kua rau cov ntawv corrugatedchocolate thawv
Dej-raws li tus cwj mem yog cov khoom lag luam ib puag ncig tus phooj ywg uas tau txais kev saib xyuas thoob plaws hauv xyoo tas los noncuav qab zib box. Dab tsi yog qhov sib txawv ntawm tus cwj mem dej thiab cov cwj mem luam ntawv dav dav, thiab dab tsi yog cov ntsiab lus uas xav tau kev saib xyuas hauv kev siv? Ntawm no, Meibang yuav piav qhia meej rau koj.
Dej-raws li tus cwj mem tau siv rau hauv kev luam ntawv ntawm corrugated ntawv rau lub sijhawm ntev mus txawv tebchaws thiab ntau tshaj 20 xyoo hauv tsev. Corrugated ntawv luam ntawv tau tsim los ntawm cov hlau lead luam ntawv (lub nyem luam ntawv), offset printing (offset printing) thiab roj hmab phaj dej washable printing rau niaj hnub no tus saj zawg zog nyem dej-raws li number case printing. Yooj yim nyem dej-raws li tus cwj mem kuj tau tsim los ntawm rosin-maleic acid hloov kho resin series (qib qis) rau acrylic resin series (qib siab). Lub phaj luam ntawv kuj tseem hloov los ntawm cov roj hmab phaj mus rau cov phaj resin. Lub tshuab luam ntawv kuj tau maj mam tsim los ntawm ib-xim lossis ob-xim xovxwm nrog cov menyuam loj rau peb-xim lossis plaub-xim FLEXO presses.
Cov muaj pes tsawg leeg thiab cov yam ntxwv ntawm cov dej-raws li inks yog tib yam li cov luam ntawv inks. Cov dej-raws li inks feem ntau yog tsim los ntawm cov xim, cov hlua khi, cov pab cuam thiab lwm yam khoom. Colorants yog cov xim ntawm cov dej raws li tus cwj mem, uas muab tus cwj mem rau xim tshwj xeeb. Txhawm rau ua kom lub ntsej muag ci ntsa iab hauv flexographic luam ntawv, cov xim feem ntau siv cov xim nrog cov tshuaj lom neeg zoo thiab muaj zog xim; Lub binder muaj dej, resin, amine compounds thiab lwm yam organic solvents. Resin yog ib qho tseem ceeb tshaj plaws nyob rau hauv cov dej-raws li inks. Cov dej-soluble acrylic resin feem ntau yog siv. Cov binder tivthaiv ncaj qha cuam tshuam rau adhesion muaj nuj nqi, kom qhuav ceev, anti-sticking kev ua tau zoo, thiab lwm yam ntawm tus number case, thiab kuj muaj feem xyuam rau lub gloss thiab number case kis tau tus mob ntawm tus number case. Amine tebchaw feem ntau tuav cov alkaline PH nqi ntawm cov kua dej raws li tus number case, kom cov acrylic resin tuaj yeem muab cov nyhuv luam ntawv zoo dua. Dej lossis lwm cov kuab tshuaj organic feem ntau yog yaj cov resins, Kho cov viscosity thiab ziab ceev ntawm tus number case; Cov neeg ua haujlwm pabcuam feem ntau suav nrog: defoamer, blocker, stabilizer, diluent, thiab lwm yam.
Raws li dej-raws li tus number case yog ib qho xab npum muaj pes tsawg leeg, nws yog ib qho yooj yim los tsim npuas hauv kev siv, yog li cov roj silicone yuav tsum tau ntxiv los ua ib qho defoamer los tiv thaiv thiab tshem tawm npuas, thiab txhim kho kev sib kis ntawm tus number case. Blockers yog siv los tiv thaiv kom qhuav ceev ntawm dej raws li tus number case, tiv thaiv tus number case los ntawm ziab ntawm anilox yob thiab txo qhov muab tshuaj txhuam. Lub stabilizer tuaj yeem kho tus nqi PH ntawm tus number case, thiab tseem tuaj yeem siv los ua diluent kom txo cov viscosity ntawm tus number case. Lub diluent yog siv los txo cov xim ntawm cov dej raws li tus cwj mem, thiab kuj tuaj yeem siv los ua lub ci ci los txhim kho qhov ci ntawm cov dej raws li tus cwj mem. Tsis tas li ntawd, ib co wax yuav tsum tau ntxiv rau cov dej raws li tus cwj mem kom ua rau nws hnav tsis kam.
Cov kua dej ua kua dej tuaj yeem sib xyaw nrog dej ua ntej ziab. Thaum tus number case qhuav lawm, nws yuav tsis soluble hauv dej thiab number case. Yog li ntawd, tus cwj mem dej raws li dej yuav tsum tau nplawm tag nrho ua ntej siv kom tus number case muaj pes tsawg leeg. Thaum ntxiv tus number case, yog tias tus number case nyob hauv lub tank muaj impurities, nws yuav tsum tau lim ua ntej, thiab tom qab ntawd siv tus number case tshiab. Thaum luam ntawv, tsis txhob cia tus number case qhuav ntawm anilox yob kom tsis txhob thaiv lub qhov inking. Thaiv qhov sib kis ntau ntawm tus number case ua rau luam ntawv tsis ruaj khov. Thaum lub sij hawm luam ntawv, flexplate yuav tsum tau ntub dej los ntawm tus number case kom tsis txhob thaiv cov ntawv luam ntawm daim ntawv luam ntawv tom qab tus number case qhuav. Tsis tas li ntawd, nws pom tau hais tias thaum lub viscosity ntawm cov dej raws li tus number case siab dua me ntsis, nws tsis tsim nyog los ntxiv dej casually kom tsis txhob cuam tshuam rau kev ruaj ntseg ntawm tus number case. Koj tuaj yeem ntxiv tus nqi tsim nyog ntawm stabilizer los kho nws.
Post lub sij hawm: Mar-15-2023
