Txhais Lub Cev Khoom Ntawm Organic Pigments
1. Xim yog cov yam ntxwv ntawm kev ua haujlwm ntawm cov pigments, tshwj xeeb tshaj yog rau cov xim pigments. Cov xim ntawm cov pigments yog ze ze rau lawv cov tshuaj muaj pes tsawg leeg. Pigments nrog cov tshuaj sib txawv muaj lawv cov xim tshwj xeeb, tab sis lawv cov xim tseem txawv nyob rau hauv ib qho kev sib txawv. Txawm hais tias cov tshuaj muaj pes tsawg leeg yog tib yam, cov qauv siv lead ua tsis tas yuav zoo ib yam, thiab muaj qhov sib txawv ntawm qhov loj me, particle loj faib, cov ntsiab lus impurity, thiab lwm yam.
2. Cov pigment yog ntxiv rau pob tshab substrate kom nws opaque, tag nrho cov dub thiab dawb kab sib chaws ntawm substrate nrog rau tus nqi ntawm cov xim yuav tsum tau los ua lub zog npog. Lub optical essence ntawm nkaum lub hwj chim yog tshwm sim los ntawm qhov sib txawv ntawm refractive index ntawm pigments thiab ib puag ncig nruab nrab. Thaum lub refractive index ntawm cov xim thiab cov refractive index ntawm cov khoom hauv paus yog sib npaug, nws yog pob tshab. Thaum lub refractive index ntawm cov xim yog ntau tshaj qhov refractive index ntawm cov khoom siv hauv paus, zais lub hwj chim tshwm sim. Qhov loj dua qhov sib txawv ntawm ob, lub zog muaj zog zais.
3. Lub zog xim ntawm cov xim organic yog lub peev xwm ntawm qee cov xim sib xyaw nrog lwm cov xim siv los txiav txim siab lub zog ntawm nws cov xim. Nws yog feem ntau ntsuas raws li cov xim dawb los ntsuam xyuas lub zog xim ntawm ntau yam xim lossis xim dub ntawm cov xim dawb. Rau kev sib piv cov xim muaj zog ntawm cov xim dawb, muaj cov txheej txheem uas twb muaj lawm ntawm kev siv lub zog ploj mus los sib piv, thiab ntxiv cov xim xiav rau offset, thaum sib piv cov xim muaj zog ntawm cov xim dawb sib txawv.
