Lub Ntsiab Tseem Ceeb Ntawm Roj Painting Pigments

Xim xim
Xim yog qhov tseem ceeb ntawm cov roj pleev xim pigments, uas txiav txim siab cov xim ntawm cov xim pigments. Cov pigments nyob rau hauv roj paintings mas yog los ntawm tej yam ntuj tso minerals, nroj tsuag, tsiaj txhu, thiab chemically synthesized tshuaj. Piv txwv li, cov xim dawb xws li titanium dioxide thiab zinc dawb yog tsim los ntawm cov pob zeb hauv av; Cov xim daj xws li chrome daj thiab cadmium daj tuaj yeem tshwm sim los ntawm cov tebchaw xws li lead chromate thiab cadmium sulfide; Cov xim liab xws li vermilion thiab carmine yog tsim los ntawm cov xim liab muab rho tawm los ntawm mercury sulfide thiab cochineal worms, feem. Cov pigments no yog finely hauv av thiab tov nrog blending agents los tsim cov roj painting pigments.
Blending agent
Blender yog ib yam khoom tseem ceeb uas ua rau cov pigments sib npaug sib npaug thiab txuas mus rau daim ntaub. Rau cov roj pleev xim pigments, cov roj zaub qhuav xws li roj flaxseed thiab roj walnut yog cov khoom siv feem ntau siv sib xyaw. Lawv tsis tsuas yog ua kom cov pigments kom muaj fluidity zoo, ua rau nws yooj yim rau cov neeg ua yeeb yam tuaj yeem siv dawb rau ntawm daim ntaub, tab sis kuj txhawb kev ziab thiab zaj duab xis tsim cov xim thaum lub sij hawm oxidation txheej txheem, ua hauj lwm muaj kev ruaj ntseg ntev.
Cov khoom siv pabcuam
Ntxiv nrog rau cov xim thiab cov khoom sib xyaw, cov xim pleev xim roj kuj tseem muaj cov khoom siv xws li molding agents, fillers, stabilizers, drying agents, and gloss agents. Cov ntaub ntawv no muaj cov haujlwm sib txawv, tab sis ua ke lawv txhim kho kev ua tau zoo thiab ruaj khov ntawm cov xim pleev xim roj. Piv txwv li, plasticizers tuaj yeem txhim kho cov plasticity ntawm cov xim, ua rau mob strokes ntau dua thiab ntuj; Fillers tuaj yeem txo cov nqi thaum txhim kho qee lub cev ntawm cov xim; Cov neeg ua kom qhuav tuaj yeem ua kom nrawm nrawm ntawm cov xim pigments thiab txhim kho kev ua haujlwm.