Pigments thiab dyes yog cov xim, thiab lawv cov qauv molecular, kev ua haujlwm, thiab cov khoom siv raw zoo sib xws.
Txawm li cas los xij, dyes yog soluble hauv dej los yog lwm cov kuab tshuaj, thiab cov xim yog insoluble hauv dej los yog lwm cov kuab tshuaj, thiab feem ntau yog dispersed nyob rau hauv nruab nrab rau coloring nrog zoo hais. Rau xim inks, coatings thiab plastics.
Pigments muaj xws li inorganic pigments thiab organic pigments. Organic pigments muaj cov khoom siv sib txawv vim lawv cov qauv tshuaj lom neeg sib txawv.
Raws li qhov no, lawv tuaj yeem muab faib ua cov organic pigments thiab cov tshuaj classic organic pigments. Tam sim no paub tias muaj kev ua tau zoo organic pigments suav nrog benzene.
Imidazolones, azo condensation (macromolecules), quinacridones, diketopyrrolopyrroles (DPP), anthraquinone heterocycles, thiab lwm yam., classic organic pigments suav nrog chromol AS series, rissol scarlet chav kawm thiab lwm yam.
Dyes yog cov khoom uas tuaj yeem xim fibers thiab lwm yam ntaub ntawv, thiab muab faib ua ob pawg: ntuj dyes thiab hluavtaws dyes.
Raws li daim ntawv thov kev faib tawm, cov dyes tuaj yeem muab faib ua kaum pawg: disperse dyes, reactive dyes, acid dyes, cationic dyes, direct dyes, vat dyes, sulfur dyes, ice dyes, neutral dyes thiab lwm yam dyes.
Raws li cov qauv kev faib tawm, cov xim tuaj yeem muab faib ua azo dyes, anthraquinone dyes, nitro thiab nitroso dyes, indigo dyes, sulfur dyes, arylmethane dyes, cyanine dyes, phthalocyanine dyes, heterocyclic dyes thiab diphenyl dyes, thiab lwm yam.
Colorants feem ntau muab faib ua dyes thiab pigments, qhov dyes xa mus rau colorants soluble nyob rau hauv dej los yog lwm yam kuab tshuaj, thiab pigments xa mus rau colorants uas yog insoluble nyob rau hauv dej los yog lwm yam kuab tshuaj.
Vim hais tias nws yog insoluble nyob rau hauv qhov kev siv nruab nrab, nws ib txwm muaj nyob rau hauv thawj crystal xeev. Yog li ntawd, cov xim ntawm cov xim nws tus kheej sawv cev rau nws cov xim nyob rau hauv lub substrate.
Pigments tuaj yeem muab faib ua cov pigments organic thiab inorganic pigments. Inorganic pigments feem ntau suav nrog cov ntxhia hauv ntuj thiab cov tshuaj inorganic, thaum cov xim organic xa mus rau cov xim ua los ntawm cov organic tebchaw.
Piv nrog rau cov xim uas tsis yog-polar, cov txheej txheem tsim cov organic pigments yog qhov nyuaj dua, tab sis tus nqi kuj tseem ceeb; Nyob rau tib lub sijhawm, xim spectrum yog dav, xim yog ci, thiab lub zog tinting yog siab, thiab nws yog dav siv hauv inks, coatings thiab plastics.
