Flexographic phaj yog dab tsi? Cov ntsiab lus thiab ceev faj!

Piv nrog rau cov ntawv xov xwm thiab cov ntawv luam tawm cov ntawv luam tawm, flexographic daim hlau yog ib hom ntawm cov roj hmab photosensitive lossis resin hom luam ntawv daim hlau, uas muaj cov yam ntxwv ntawm softness thiab yooj. Yog li ntawd, nyob rau hauv cov txheej txheem luam ntawv ntau lawm, flexo daim hlau vim lawv cov yam ntxwv sib txawv feem ntau tshwm sim flexo phaj tsis zoo, tsis yooj yim rau kev tswj cov phaj ua haujlwm, qhov zoo tsis ruaj khov, yooj yim los thaiv cov phaj, tus nqi siab ntawm phaj. ua, tsawg tus kab ntawm kev tshuaj ntsuam thiab lwm yam tshwm sim, kom cov neeg ua hauj lwm luam ntawv muaj teeb meem. Kev nkag siab thiab paub txog cov yam ntxwv ntawm lub phaj flexographic kom tshem tawm cov xwm txheej no yuav pab tau.

Flexographic luam ntawv tuaj yeem luam tawm ntawm ntau hom substrates (xws li corrugated thawv, ntawv, zaj duab xis, thiab lwm yam). Piv nrog rau cov lus hais saum toj no, cov ntawv luam ntawv thiab cov ntawv luam tawm offset, lub zog txhua yam ntawm cov phaj flexographic yog me ntsis qis dua. Txawm li cas los xij, flexographic luam ntawv yog ib txoj kev luam ntawv uas tsis tas yuav tsum tau hloov tus cwj mem thiab siv anilox rollers uas muab tus lej ruaj khov ntawm tus cwj mem kom sib npaug ntawm qee qhov tuab ntawm tus number case txheej ntawm daim duab ntawm lub phaj luam ntawv, thiab tom qab ntawd hloov cov number case txheej. cov duab nraaj mus rau qhov chaw ntawm lub substrate nyob rau hauv lub siab ntawm lub impression roller los tsim ib tug meej nraaj.

Hauv cov txheej txheem no, lub peev xwm los teeb tsa qhov ruaj khov "hnia-kov" kev luam ntawv siab yog qhov tseem ceeb heev hauv kev luam ntawv flexographic. Yog li ntawd, qhov tseeb thiab teeb tsa ntawm cov xovxwm luam ntawv, viscosity ntawm tus number case (pH rau cov dej raws li inks), kev rov tsim dua thiab tuab ntawm cov ntawv luam ntawv (phaj txiag), elasticity ntawm daim kab xev, thiab cov thickness tswj yuav tsum muaj. kev paub zoo heev ntawm ib feem ntawm lub tshuab luam ntawv hauv cov txheej txheem tsim khoom txhua hnub. Txawm li cas los xij, thaum cov yam ntxwv cuam tshuam tau paub zoo, nws tuaj yeem luam tawm tau yooj yim raws li cov qauv siv cov ntawv luam tawm thiab offset luam ntawv.

Tsuas yog qee qhov tshwj xeeb phaj cov yam ntxwv, cov tshuaj lom neeg ntawm flexo daim hlau muab los ntawm txhua lub chaw tsim khoom phaj yog tib yam. Nyob rau hauv flexo luam ntawv, cov sib xws ntawm cov xovxwm, inks, thiab lwm yam yuav txawv nyob ntawm seb hom luam ntawv rau corrugated thawv, saj zawg zog ntim (zaj duab xis), ntawv, ntawv hnab, thiab lwm yam. Txawm hais tias muaj ntau hom phaj thickness, hardness, etc., cov yam ntxwv yeej ib yam. Yog li ntawd, cov ntawv luam ntawv muag los ntawm cov chaw tsim khoom sib txawv thiab cov dej-raws li inks, hnyav inks, thiab UV inks muag los ntawm cov tuam txhab number case yog tag nrho cov qauv tsim.

Nws yog ib qho tsim nyog sau cia tias UV inks sib txawv hauv kev tsim muaj pes tsawg leeg los ntawm ib lub chaw tsim khoom mus rau lwm tus, thiab kev kuaj pom zoo ua ntej siv. Ntawm qhov tod tes, feem ntau inks rau resin letterpress, gravure, thiab offset printing yog tsawg resistant. Yog tias siv ncaj qha, nws ua rau cov resin o ua rau txo qis hauv lub cev ntawm cov ntawv luam ntawv.