Ib qho khoom muaj nqis zoo ntawm kev paub txog cov organic pigments
Cov neeg ua haujlwm cov xim xim tsom rau kev txhim kho tom qab txhim kho cov xim, xws li xaiv cov siv lead ua kom zoo dua qub, kev tsim cov khoom lag luam finer thiab granular thiab cov nqaim loj me me, txhim kho cov ya raws cov xim, kom cov organic xim tuaj yeem ua lub luag haujlwm ntau dua.
Cov pigments organic yog cov uas muaj xim thiab ntau ntawm lwm cov khoom siv xim thiab yog ua los ntawm cov sib txuas organic. Xim muaj cov khoom suav nrog lub hnub, dej nqus dej, tshuaj tiv thaiv acid, alkali tsis kam, organic hnyav tiv thaiv, kub tsis kam, siv lead ua ruaj khov, tawg thiab npog. Qhov sib txawv ntawm cov organic pigments thiab dyes yog tias lawv tsis muaj kev sib raug zoo nrog cov khoom xim, tsuas yog cov nplaum lossis cov yeeb yaj kiab tso tawm uas txuas rau saum npoo ntawm cov khoom, lossis sib xyaw nrog hauv cov khoom, kom tus kwv xim. Lub tshuab nruab nrab, cov khoom siv ntau lawm thiab cov txheej txheem sib txawv uas xav tau rau nws cov khoom lag luam zoo ib yam li kev tsim cov khoom siv, yog li cov organic xim muaj feem ntau npaj rau hauv kev lag luam zas. Cov xim pleev xim rau hauv nruab nrab thiab cov xim inorganic dav dav, feem ntau muaj lub zog ua kom muaj xim ntau dua, hais kom yooj yim zom thiab tawg, tsis yooj yim rau nag lossis daus, xim yog qhov ci dua, tab sis hnub, tshav kub, huab cua tsis kam yog qhov tsis zoo. Cov khoom siv xim organic yog siv ntau hauv cov xim ntawm cov inks, lo lo ntxhuav, khoom siv roj hmab, khoom lag luam yas, khoom siv kev cai thiab khoom siv thiab khoom siv hauv tsev.
Cov organic xim muaj cais raws cov qauv
(1) Azopigment tswg 59%
(2) 2 4% ntawm cov xim
(3) Sanfang methane cov xim pleev xim rau 8 %
(4) Cov ເມັດ ສີ tshwj xeeb rau 6 %
(5) Ntau lub nplhaib pleev xim rau 3 %
Lub cev lub zog ntawm cov organic xim
Cov xim muaj xim muaj xim zoo nkauj, muaj zog hauv cov xim, tsis tshua muaj hnyav thiab tsis muaj tshuaj lom, tab sis qee hom muaj ntau yam tsis tshua pom kev, tshav kub, tiv taus-thauj thiab thauj-resistant dua cov inorganic pigments.
Cov xim sib txawv nws tsis tas mus li thiab xim zoo nkauj, tab sis muaj qee qhov kev sib txuas ntawm cov xim sib txawv, txhua qhov xim tuaj yeem txiav txim siab los ntawm 3 tsis, uas yog tonal, ci thiab saturated. Hawj txawm yog tus yam ntxwv ntawm cov xim sib txawv ntawm txhua lwm tus, txiav txim siab los ntawm lub teeb ci' s chromatographic muaj pes tsawg leeg thiab nplaim ntawm cov khoom tawm ntawm nthwv dej ntawm tib neeg lub qhov muag, tuaj yeem paub qhov txawv ntawm liab, daj, ntsuab , xiav, ntshav thiab lwm yam ntxwv. Lub teeb ci, tseem hu ua qhov ci ci, yog cov yam ntxwv muaj nuj nqis uas sawv cev rau qhov hloov pauv ntawm qhov pom ntawm lub teeb thiab tsaus ntuj nti rau yam khoom' s nto; Kev saturation, tseem hu ua xim, yog tus yam ntxwv muaj nuj nqi uas sawv cev rau xim ntawm lub npoo ntawm ib yam khoom, ua rau xim zoo nkauj thiab tsis pom kev. Tonal, lub plab, thiab cov foos uas muaj cov duab peb sab, nrog cov peb los tsim qhov ntsuas, peb tuaj yeem siv cov lej los ntsuas cov xim. Xwm' s xim yog xim hloov tas mus li, tab sis qhov yooj yim tshaj plaws yog xim liab, daj thiab xiav, hu ua thawj xim.
