Cov txheej dej raws txheej txheem yog suav ntawm cov tawv, cov xim, cov lus sau thiab ntxiv rau. Raws li daim ntawv thov, xim pleev xim rau dej tau muab faib ntxiv: xim pleev xim rau sab hauv tsev, dej xim kev lag luam pleev xim, dej xim los tiv thaiv xeb, thiab lwm yam, tab sis txhua hom xim tsis raug cais los ntawm kev siv cov xim, tshwj xeeb yog hlau oxide cov xim pleev xim tau dhau los ua ib qho tseem ceeb ntawm cov xim pleev xim tsis muaj dej. Cov hlau oxide pigments yog siv dav hauv cov xim muaj kuab, xim tsev thiab inks vim tias lawv tsis muaj tshuaj lom, tsis muaj ntshav, tsis tshua muaj nqi, thiab tuaj yeem tsim ntau lub suab sib txawv.
Cov hlau oxide pigments dav siv hauv cov txheej xws li hlau oxide liab, hlau oxide daj, hlau oxide dub thiab lwm yam khoom lag luam.
Cov hlau oxide liab muaj kub zoo tsis kam, tsis hloov xim ntawm 300 ° C, thiab nws cov txheej txheem tshuaj lom neeg yog qhov ruaj khov heev. Nws tuaj yeem nqus cov hluav taws xob ultraviolet hauv tshav ntuj, yog li nws muaj kev tiv thaiv tsis zoo rau cov xim lo. Cov hlau oxide liab tiv taus rau cov kua qaub kua qaub, alkali, dej, cov kuab tshuaj, thiab muaj huab cua zoo tiv taus. Nws yog siv nyob rau hauv txheej txheej tiv thaiv xeb nrog kev ua kom lub cev tiv thaiv xeb, uas ua rau kom lub zog loj thiab tsis muaj zog ntawm cov xim txheej, thiab tiv thaiv kom tsis txhob ya raws hauv cov cua nkag mus rau hauv cov hlau txheej.
Cov hlau oxide daj thiab hlau oxide liab muaj lub teeb pom kev zoo, hnyav tiv thaiv, alkali tsis kam, thiab dilute acid tsis kam. Nws qhov kev tiv thaiv tshav kub yog qhov tsis zoo dua. Thaum kho cua sov yog ua tiav ntawm 135 ℃ / 1h thiab 177 ℃ / 5min, nws yuav maj mam Nws poob dej siv lead ua thiab hloov mus rau theem liab, yog li nws tsis tuaj yeem siv hauv cov txheej txheej nrog kub dua kom sov.
Tam sim no, cov hlau hluavtaws oxide daj tau siv hauv cov dej pleev xim. Cov hlau hluavtaws oxide daj muaj lub siab tinting zog, ci ntsa iab ntau dua thiab zoo abrasiveness. Nws muaj qhov ua haujlwm ntawm kev tiv thaiv ultraviolet hluav taws xob thiab tuaj yeem ncua lub neej thov ntawm lub txheej.
Ntxiv mus, cov hlau synthesized daj daj tau ua ke nrog ruaj khov phthalocyanine xiav, hlau xiav, thiab lwm yam los ua xim ntsuab, thiab hlau liab, hlau dub, thiab lwm yam, los ua xim av.
Hauv kev siv xim ntawm cov xim ua xim, ib qho me me ntawm cov hlau daj xim muab tshuaj txhuam tuaj yeem raug ntxiv rau titanium dawb muab tshuaj txhuam kom ua rau nws beige. Lub teeb tiv thaiv zoo dua li qhov ntawm monoazo organic daj. Nws tseem tuaj yeem sib xyaw kom tau cov xim zoo nkauj ntawm cov organic daj. Qeb thiab ntev thiab ntev ntawm cov hlau daj.
Cov hlau oxide dub kuj tseem siv tau los npaj primers. Nws yog siv los ua pib rau cov khoom siv hlau hauv tsheb thiab khoom siv thauj khoom. Nws yog qhov yooj yim dua kom tawg dua li cov pa roj carbon dub.
