Kev zoo ntawm cov dej zoo ntawm offset printing thiab kev kho mob
Peb yog ib lub tuam txhab luam ntawv loj hauv Shenzhen Tuam Tshoj. Peb muaj cov phau ntawv luam tawm, phau ntawv xov xwm luam ntawv, phau ntawv luam ntawv, phau ntawv nyuaj, phau ntawv luam tawm, phau ntawv luam tawm, phau ntawv luam tawm, lub thawv ntim, daim qhia ntawv, txhua yam ntawm PVC, cov ntawv luam tawm, ntawv sau cia, hom tshwj xeeb ntawv xim luam tawm khoom, kev ua si cardand li ntawd.
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Nrog rau txoj kev lag luam luam tawm, lub zej zog tau txuas ntxiv mus siab dua thiab siab dua rau cov khoom siv luam tawm, los ntawm cov khoom siv luam ntawv, cov ntawv luam tawm, cov khoom siv luam ntawv, rau kev ua haujlwm ntawm cov tswv. Tsab xov xwm no yuav los ntsuam xyuas txog kev cuam tshuam ntawm cov dej zoo ntawm kev luam thiab kev txhim kho cov dej los ntawm kev tshuaj xyuas kev lag luam zoo ntawm cov dej tua hluav taws.
1. Cov dej tawv
Thaum cov calcium uas siab tshaj 200 PPM, nws ua rau calcium saponification rau daim ntawv tiv thaiv nrog cov duab hauv lub cwj mem, thiab thaum hu nrog kua acidic, ntsev xws li calcium citrate thiab calcium phosphate yog tsim.
Sulfonified calcium uas yog lipophilic, uas ua rau tus number case los tso rau hauv cov cheeb tsam uas tsis tau qis, xws li dej rollers thiab cov dej-foamed. Calcium ntsev muaj hydrophilicity zoo, uas hinders numbered hloov thiab ua rau tus number case roller yuav tau deinked.
Ntxiv rau, yog cov calcium uas nyob hauv cov dej hauv cov dej tshaj qhov ntsuas, nws yuav ncaj qha mus cuam tshuam rau lub neej ntawm cov roj hmab uas rubber, uas yuav ua rau cov nplais ntawm cov roj hmab rub tawm.
Xaus 1: Cov dej ntau dhau yuav ua rau lub zog ntawm cov xaim mem tes, qhov no yuav ua rau lub raj npog ntawm txoj hauv kev dej, uas yuav ua rau cov laus ntawm cov khau rub tawm (qhov ntxig crystallization).
2. Tawm hauv kev ua pa thaum nkag mus hauv dej
Qhov sib txoos ntawm qhov kev sib txuas ntawm qhov chaw txhuam ntawm lub qhov ciav yog nyob ntawm qhov kev sib xyaws ntawm cov tshuaj tsis haum. Qhov ntau dua qhov concentration, qhov txo qhov nro nto.
Qee cov kev xaav tsis siv cov khoom siv thauj khoom tuaj yeem tswj cov concentration ntawm dampening tov kom ua tau ib qho kev ua kom zoo tshaj qub. Thaum cov kab mob ntawm cov dej tsis huv loj heev, nws yuav ua rau muaj qhov hloov ntawm qhov kev daws teeb meem. Qhov tshwm sim yog kev tsis txaus siab nyob rau hauv qhov piv ntawm cov roj mus rau dej, ua rau tsis muaj kev cuam tshuam.
Yog hais tias qhov kev faib feem ntawm dampening kua yog ntau npaum li cas thiab muaj meej raws li lwm cov koog, qhov teeb meem yuav tsawg, tab sis thaum tus kab mob ntawm cov dej tau hloov zoo heev, txoj kev sib raug zoo ntawm cov roj thiab dej kuj tseem tsis tau kauj.
Xaus 2: Thaum cov kab dej tau hloov mus rau qhov dej, nws yuav cuam tshuam rau kev tswj kom tsis txhob muaj kev kub ntxhov thiab kuaj pom kev dampening hauv cov txheej txheem luam ntawv.
3. Rau cov tuam txhab loj nrog ntau ceg
Qee cov tuam txhab muaj cov ceg hauv ntau lub nroog thiab xav kom tau txais kev ua haujlwm kom ua tau zoo dua qub. Qhov no kuj txo nws hwj ntau dua ntawm kev siv dej zoo. Piv txwv, qhov nyuaj ntawm dej nyob hauv ntau lub nroog, thiab qhov uas tsis muaj dej ntau nyob hauv ntau lub nroog. Cov no yog txhua yam teeb meem uas yuav tsum tau muab los xav.
Xaus 3: Thaum twg cov dej zoo nyob hauv ntau thaj tsam sib txawv, nws yuav muaj qee qhov kev cuam tshuam txog kev ua tus qauv zoo ntawm cov ntawv luam tawm.
Los ntawm kev soj ntsuam saum toj no, peb pom hais tias qhov dej ntawm nws tus kheej muaj feem cuam tshuam rau hauv cov txheej txheem luam ntawv nyob rau hauv ib cheeb tsam qee yam, yog li kev kho cov dej tsis yog ib qho tsis muaj dab tsi. Lub peev xwm ntawm cov lag luam yuav tsum nrog cov dej luam tawm yog tsim nyog rau cov dej tsis zoo. Dej kho hauv thaj chaw phem yog ib qho yuav tsum ua.
Dej kho txoj kev:
Kev kho cov dej tuaj yeem hais tias yuav tsum tau nqa tawm hauv ntau txoj hau kev, xws li: distillation, kho dej kho, ua kom pom carbon, microfiltration, ultrafiltration, rov qab osmosis pom.
1. Kho dej los kho dej:
Cov dej yog lim los ntawm kev siv cov tawv nqaij uas siv cov tshuaj sodium chloride. Thaum cov sodium ions uas tau ua ke nrog cov hnyuv, calcium, magnesium thiab manganese ions nyob hauv dej, lawv raug hloov los ntawm cov ions, uas yog, cov nano ions nkag mus rau cov dej thaum calcium uas yog Magnesium plasma adsorbed rau cov pob tshuaj.
Txoj kev kho no tuaj yeem txo qhov kev mob ntawm cov dej (piv txwv, txo cov ntsiab lus ntawm calcium thiab magnesium ions hauv dej), tiam sis nws tseem ceeb hais tias cov kab dej ntawm nws tus kheej tsis hloov vim qhov concentration ntawm ions muaj nyob hauv dej tsis hloov .
2. Ion tawm
Txoj kev siv no yog siv cov khoom siv hluav taws xob sib txawv thiab ib qho tshuaj txhuam hniav hloov mus rau kev hloov pauv thiab cation hauv dej, raws li. Thaum cov dej paug hauv cov dej pauv los ntawm kev sib pauv, ions hauv dej yog adsorbed los ntawm cov tshuaj ntsuab, thiab hydrogen ions los sis hydroxide ions nyob rau hauv lub pob zeb hloov mus rau hauv dej, thiab cov khoom uas tau them rov qab tseem siv tau. Thaum cov resin tsis tiav, cov tshuaj txhuam yuav raug txo kom qis nrog cov kua qaub thiab lub hauv paus muaj zog.
Nws muaj ob lub ntsiab hom khoom siv rau kev kho cov dej hauv li no:
1 ob chav txaj reini hloov khoom. Cov khoom siv no feem ntau muaj ob lub thawv rau me (yin thiab yaj).
2 hom sib xyaw. Qhov tshuaj txhuam cationicion yog sib xyaw hauv ib qho qauv thiab siv tib lub sijhawm. Yog hais tias qhov sib piv yog zoo, cov dej tau txais tom qab qhov kev kho mob zoo heev.
3. Rov qab osmosis txujci:
Nyob rau hauv ib txwm ua, lub diffusion ntawm dej yog kis los ntawm ib tug tsawg concentration rau ib tug high concentration. Cov thim rov qab osmosis siv ntau yam khoom siv thiab txhais tau tias kom thim qhov txheej txheem. Thaum muaj kev kub ntxhov, cov dej muaj qis concentration los ntawm kev sib koom siab. Qhov chaw kis. Rov qab osmosis yog lub tshuab txav tawm ua kom tsis zoo tag nrho uas tshem 90 mus txog 95% ntawm impurities hauv peb cov dej haus hauv cov neeg mob. Cov khoom siv feem ntau siv tau ntau tshaj yog: cov cellulose acetate film, polyamide zaj duab xis thiab zaj yeeb yaj kiab.
※ Ntxuas: Qhov ntsuas ntawm cov keeb kwm ntawm cov dej yog ib txoj kev rau kev ntaus cim cov ntsiab lus ntawm roj ntsha hauv dej. Chav tsev yog S, uas yog qhov sib thooj ntawm dej tsis kam. Tseem muaj cov chav me me uas siv hauv μS. Lub conductivity ntawm dampening kua yuav tsum tau thaum lub sij hawm luam ntawv yog feem ntau ntawm 500 mus rau 1500 μS.