Kev ntim khoom noj yog qhov tseem ceeb heev rau cov khoom noj. Nws tuaj yeem muab kev tiv thaiv, txo lossis tiv thaiv cov zaub mov los ntawm kev cuam tshuam los ntawm cov kab mob sab nraud lossis lwm yam tshuaj, thiab tiv thaiv cov zaub mov los ntawm cov tshuaj tiv thaiv. Vim tias cov khoom ntim khoom noj muaj kev sib cuag ncaj qha nrog cov zaub mov, ntau ntawm lawv yuav muaj kev cuam tshuam ncaj qha rau cov khoom noj. Yog tias tib neeg lub cev siv cov khoom ntim tsis zoo rau lub sijhawm ntev, nws yuav ua rau muaj kev phom sij rau tib neeg lub cev. Yog li ntawd, tib neeg yuav tsum tau xyuam xim rau kev nyab xeeb ntawm cov khoom ntim khoom noj.
Cov khoom ntim khoom noj khoom haus
1. Cov khoom ntim khoom yas
Cov khoom tseem ceeb ntawm cov yas yog siab molecular polymer resin. Txhawm rau txhim kho kev ua haujlwm ntawm cov yas, ntau yam khoom siv ntxiv yuav raug ntxiv. Raws li cov khoom ntim khoom noj, cov khoom yas muaj cov nqi qis thiab muaj zog plasticity, uas tuaj yeem ua tau raws li qhov yuav tsum tau muaj ntawm ntau yam khoom ntim. Ntau lub lag luam ua zaub mov yuav xaiv nws ua cov khoom ntim khoom noj. Txawm li cas los xij, qee yam khoom hauv cov khoom ntim yas tuaj yeem ua rau cov zaub mov tsis zoo thiab cuam tshuam rau kev nyab xeeb ntawm cov khoom noj. Nws yog tsim nyog sau cia tias muaj ob txoj hauv kev rau cov khoom siv rov ua dua tshiab hauv xyoo tas los no. Ntawm qhov tod tes, nws txo cov khoom pov tseg. Ntawm qhov tod tes, vim tias cov txheej txheem rov ua dua tshiab thiab cov txheej txheem nyuaj los tswj, nws tseem yuav ua rau cov khoom seem ntawm qee yam tshuaj lom thiab paug cov zaub mov.
2. Ntim ntawm cov khoom siv ntawv
Cov ntaub ntawv raw ntawm cov ntawv ntim khoom noj yog cov straw pulp thiab ntoo pulp. Vim yog lub hauv paus, cov tshuaj tua kab residues qee zaum tsis tuaj yeem zam. Yog tias tsis ua tiav ntxiv, cov zaub mov yuav kis tau. Cov teeb meem kuj tuaj yeem tshwm sim hauv cov txheej txheem rov ua dua ntawm cov ntawv pov tseg. Feem ntau cov thev naus laus zis tuaj yeem tsuas yog tshem tawm cov cwj mem thiab xim, tab sis tsis muaj teeb meem tshuaj. Los yog siv cov ntawv moldy, pwm kuj tseem nyob hauv cov ntawv ntim. Tsis tas li ntawd, cov tshuaj ntxiv rau hauv cov ntawv ntim kuj tseem tuaj yeem nqa cov khoom tsis zoo. Qee cov tuam txhab lag luam ntxiv cov tshuaj fluorescent lossis cov tshuaj ntxuav hniav dawb hauv kev nrhiav kev zoo nkauj, uas yog carcinogenic. Ib qho kev kis kab mob feem ntau yog ink contamination. Vim tsis muaj kev saib xyuas rau cov teeb meem ntim khoom noj, tam sim no tsis muaj tus cwj mem rau ntim zaub mov hauv khw. Cov inks nquag siv yog cov organic hnyav gravure inks, uas muaj toluene thiab xylene. Cov number case no yuav tsum tau diluted hauv cov ntim khoom noj, thiab cov kuab tshuaj diluted muaj benzene. Cov residue ntawm cov kuab tshuaj no nyob rau hauv cov zaub mov ntim tshaj tus qauv, thiab nws kuj yuav ua rau zaub mov muaj kuab paug. Cov pigments thiab dyes siv nyob rau hauv tus cwj mem muaj cov hlau hnyav xws li txhuas thiab cadmium, uas yuav ua rau cov hlau hnyav hauv cov zaub mov.
3. Cov khoom siv hlau ntim khoom
Cov khoom siv hlau yog siv dav hauv kev ntim khoom noj thiab muaj ntau yam zoo. Ntau lub thawv hlau ua los ntawm cov khoom siv hlau tuaj yeem thaiv kev cuam tshuam ntawm lub ntiaj teb sab nraud ntawm cov khoom noj thiab xyuas kom cov khoom noj tshiab. Tsis tas li ntawd, cov khoom siv hlau kuj yooj yim rau kev rov ua dua tshiab. Txawm li cas los xij, hlau ntim kuj muaj qhov tsis zoo. Vim tsis muaj tshuaj lom neeg ruaj khov, cov khoom siv hlau yog nquag ua rau muaj kev cuam tshuam los ntawm lwm yam. Cov zaub mov muaj kua qaub thiab alkaline tsis tuaj yeem ntim rau hauv cov hlau. Cov thawv ntim hlau, ntim khoom noj khoom haus txhuas thiab cov khoom ntim khoom noj stainless hlau yog cov khoom ntim khoom siv hlau. Txawm li cas los xij, cov ntim no yuav ua rau muaj kev nyab xeeb sib txawv. Yog tias tib neeg noj cov khoom noj uas muaj txhuas ntim rau lub sijhawm ntev, cov hlau xws li txhuas thiab zinc yuav ua rau hauv lub cev, ua rau muaj kev phom sij ntev. Cov khoom ntim khoom noj stainless hlau muaj ntau cov npib tsib xee, uas yuav ua rau cov khoom tsis ruaj khov hauv cov khoom noj thaum kub kub, thiab tseem ua rau carcinogens, uas ua rau muaj kev phom sij rau tib neeg kev noj qab haus huv.
