Rau cov ntsiab lus tseem ceeb rau kev siv kom raug thiab kho cov kua zaub

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Taw qhia: Pollers ua lub luag haujlwm tseem ceeb hauv cov txheej txheem luam ntawv los ntawm kev hloov mem kua. Lawv ib txwm tuaj hauv peb daim ntawv: cov khoom noj khoom haus, tsis pub lwm tus xa tawm, thiab cov kev sib txawv. Qhov tsim nyog, cwj mem rollers yuav tsum muaj kev ua kom haum thiab hloov cov kuab tshuaj xws li organic cov kuab tshuaj, roj av, thiab kerosene. Kev kho mob txhua hnub cuam tshuam rau lawv lub neej pabcuam.

Txij li thaum number case yog ua los ntawm roj hmab, lawv muaj kev cuam tshuam rau cov teeb meem xws li off Yog li ntawd, kev siv kom raug thiab txij nkawm yog qhov tseem ceeb. Cov hauv qab no rau cov ntsiab lus tseem ceeb yuav tsum tau hais txog:

1. Tiv thaiv deformation ntawm tus mem kua clok hauv siab.

Thaum lub sijhawm ua haujlwm ib txwm muaj, lub siab thov rau lub number caser yog hnav khaub ncaws hnav zoo, tiv thaiv kev ntxhov siab hauv nroog lossis kev tawm tsam. Txawm li cas los xij, tom qab lub sijhawm ntev ua ntej, hauv ib cheeb tsam compression yuav ua rau indentation.

Yog li ntawd, thaum number case tsis tau siv rau ncua sijhawm, lawv yuav tsum tau muab tshem tawm thiab khaws cia rau hauv pem teb lossis kev ua haujlwm kom tsis txhob muaj lub siab deformation.

2

Hauv kev tsim khoom, cov cuab yeej yuav tsum tsis txhob muab tso rau haphazardly. Thaum kho tau ntawm lub Ink cov menyuam thiab lub phaj lossis nruab nrab ntawm cov txiv hmab txiv ntoo, siv lub ntsuas cua tuab rau kev ntsuas thiab txo qis kev puas tsuaj.

3. Nquag tshem oxidation zaj duab xis tsim nyob rau hauv Ink cov menyuam nto.

Hauv kev luam ntawv offset, glossly ceev-qhuav cob inks uas muaj cov neeg sawv cev qhuav thiab cov disperstants yog siv. Cov khoom siv no tuaj yeem nkag rau hauv lub taub hau taub hau dhau lub sijhawm, sib sau cov yeeb yaj kiab uas txo qis hauv kev nqus thiab kev hloov ua haujlwm.

Yog li ntawd, cov zaj duab xis txheej yuav tsum yog tus kheej lossis kho kom zoo. Txawm li cas los xij, kev saib xyuas yuav tsum tsis txhob ua kom ntau dhau kev txo cov pob ntawm cov taub, vim qhov no yuav cuam tshuam rau kev hloov pauv hauv plab.

4. Tiv thaiv tus mem kua poob ntawm lub number case.

Hauv kev luam tawm ntawm kev siv dej, siv rau ink emulsification, sib sau ua hydroughilic txheej ntawm tus du ink cov menyuam cov menyuam cov menyuam cov menyuam tsis muaj sia.

Txhawm rau daws qhov no, emulsified ink yuav tsum tau muab tshem tawm, thiab txheej hydrophilic yuav tsum tau stripped siv cov sib xyaw ntawm 5% sodium hydroter hydroxide tov thiab pumice hmoov. Qhov no rov qab cov menyuam cov kua dej lipophilic.

Tsis tas li ntawd, cov dej txhawv hauv kev tsim qauv yuav tsum ua tib zoo tswj, suav nrog nws tus nqi pH. Qhov tsawg kawg nkaus tsim nyog cov dej yuav tsum tau siv thaum luam tawm kom tsis txhob phaj scumming thiab txo emulsification. Qhov sib ntxiv ntawm cov pos hniav Arabic thiab surfactants yuav tsum muaj qhov nruab nrab.

5. Muab cov kua mem kua txiv hauv qhov qhuav, huv si, thiab thaj chaw zoo nkauj.

Zam txhob ua rau lawv cov av noo ntau dhau los yog cua sov. Ink rollers yuav tsum tau khaws cov kab rov tav ntawm ob qho kawg, ua kom lawv cov chaw sib tiv tauj los yog lwm yam khoom.

6. Ua kev tu txhua hnub ntawm cov txiv ntoo.

Tom qab txhua hnub ua haujlwm lossis luam ntawv ntxuav cov kua mem ntshav kom tiv thaiv oxidation thiab kev tsim ntawm zaj duab xis, ci ntsa iab ntawm cov pigments saum npoo thiab resins. Kev tu ib feem ntau yog siv cov kerosene taug qab los ntawm roj av. Txij li cov kerosene yaj qeeb qeeb thaum roj av evaporates sai sai, no ob-kauj ruam txheej txheem pab tswj cov txiv hmab huv si thiab qhuav huv si.