Cov yam ntxwv thiab kev txawj luam ntawv ntawm cov kua dej raws li rau cov ntawv corrugatedlub thawv chocolate
Cov kua mem uas yog dej yog cov khoom siv kua mem uas zoo rau ib puag ncig uas tau txais kev saib xyuas dav dav hauv xyoo tas los nolub thawv ncuav mog qab zibQhov txawv ntawm cov kua dej thiab cov kua luam ntawv dav dav yog dab tsi, thiab cov ntsiab lus twg xav tau kev saib xyuas thaum siv? Ntawm no, Meibang yuav piav qhia kom meej rau koj.
Cov kua mem uas muaj dej tau siv rau hauv kev luam ntawv corrugated ntev heev nyob txawv teb chaws thiab hauv tsev tau ntau tshaj 20 xyoo. Kev luam ntawv corrugated tau tsim los ntawm kev luam ntawv txhuas (kev luam ntawv nyem), kev luam ntawv offset (kev luam ntawv offset) thiab kev luam ntawv ntxuav dej ntawm phaj roj hmab mus rau kev luam ntawv uas muaj dej uas yooj ywm niaj hnub no. Cov kua mem uas yooj ywm kuj tau tsim los ntawm cov tshuaj rosin-maleic acid hloov kho resin series (qib qis) mus rau cov tshuaj acrylic resin series (qib siab). Lub phaj luam ntawv kuj hloov pauv los ntawm phaj roj hmab mus rau phaj resin. Lub tshuab luam ntawv kuj tau maj mam tsim los ntawm cov tshuab luam ntawv ib xim lossis ob xim nrog cov menyuam loj mus rau cov tshuab luam ntawv FLEXO peb xim lossis plaub xim.
Cov xim thiab cov yam ntxwv ntawm cov kua mem dej zoo ib yam li cov kua mem luam ntawv dav dav. Cov kua mem dej feem ntau muaj cov xim, cov khoom sib txuas, cov khoom pab thiab lwm yam khoom. Cov xim yog cov xim ntawm cov kua mem dej, uas muab cov xim tshwj xeeb rau cov kua mem. Yuav kom ua rau lub ntsej muag ci ntsa iab hauv kev luam ntawv flexographic, cov xim feem ntau siv cov xim uas muaj kev ruaj khov tshuaj zoo thiab muaj zog xim siab; Cov khoom sib txuas muaj dej, resin, amine compounds thiab lwm yam organic solvents. Resin yog qhov tseem ceeb tshaj plaws hauv cov kua mem dej. Cov acrylic resin uas yaj tau hauv dej feem ntau siv. Cov khoom sib txuas ncaj qha cuam tshuam rau kev ua haujlwm lo, qhov ceev ziab, kev ua haujlwm tiv thaiv kev lo, thiab lwm yam ntawm cov kua mem, thiab tseem cuam tshuam rau qhov ci thiab kev xa cov kua mem. Cov tshuaj amine feem ntau tswj cov nqi alkaline PH ntawm cov kua mem dej, yog li cov acrylic resin tuaj yeem muab cov txiaj ntsig luam ntawv zoo dua. Dej lossis lwm yam organic solvents feem ntau yog cov resins yaj, Kho qhov viscosity thiab qhov ceev ziab ntawm cov kua mem; Cov neeg sawv cev feem ntau suav nrog: defoamer, blocker, stabilizer, diluent, thiab lwm yam.
Vim tias cov kua mem uas muaj dej yog cov tshuaj ntxuav tes, nws yooj yim tsim cov npuas thaum siv, yog li yuav tsum ntxiv cov roj silicone ua cov tshuaj defoamer kom tiv thaiv thiab tshem tawm cov npuas, thiab txhim kho kev ua haujlwm ntawm cov kua mem. Cov tshuaj blockers siv los tiv thaiv qhov ceev ntawm cov kua mem dej kom qhuav, tiv thaiv cov kua mem kom tsis txhob qhuav ntawm lub yob anilox thiab txo cov nplaum. Lub stabilizer tuaj yeem kho qhov PH ntawm cov kua mem, thiab kuj tuaj yeem siv ua cov tshuaj diluent kom txo qhov viscosity ntawm cov kua mem. Cov tshuaj diluent siv los txo cov xim ntawm cov kua mem dej, thiab kuj tuaj yeem siv ua cov tshuaj ci kom txhim kho qhov ci ntawm cov kua mem dej. Tsis tas li ntawd, yuav tsum ntxiv qee cov quav ciab rau cov kua mem dej kom ua rau nws tiv taus kev hnav.
Cov kua mem dej tuaj yeem sib xyaw nrog dej ua ntej ziab. Thaum cov kua mem qhuav lawm, nws yuav tsis yaj hauv dej thiab kua mem ntxiv lawm. Yog li ntawd, cov kua mem dej yuav tsum tau do tag ua ntej siv kom cov kua mem sib npaug. Thaum ntxiv cov kua mem, yog tias cov kua mem seem hauv lub tank kua mem muaj cov khoom tsis huv, nws yuav tsum tau lim ua ntej, thiab tom qab ntawd siv nrog cov kua mem tshiab. Thaum luam ntawv, tsis txhob cia cov kua mem qhuav ntawm lub yob anilox kom tsis txhob thaiv qhov chaw sau kua mem. Kev thaiv kev xa cov kua mem ua rau kev luam ntawv tsis ruaj khov. Thaum lub sijhawm luam ntawv, lub phaj flexplate yuav tsum tau ntub cov kua mem kom tsis txhob thaiv cov qauv ntawv ntawm lub phaj luam ntawv tom qab cov kua mem qhuav. Tsis tas li ntawd, nws pom tias thaum cov kua mem dej viscosity siab me ntsis, nws tsis tsim nyog ntxiv dej kom tsis txhob cuam tshuam rau kev ruaj khov ntawm cov kua mem. Koj tuaj yeem ntxiv cov tshuaj stabilizer kom tsim nyog los kho nws.
Lub sijhawm tshaj tawm: Lub Peb Hlis-15-2023
