Dye yog ib qho organic compound, feem ntau nyob rau hauv lub xub ntiag ntawm cov kua ua kom tiav cov tshuaj tiv thaiv, yog li lub ntiaj teb no tus thawj hluavtaws dye yog thawj muag nyob rau hauv cov kua daim ntawv, ntawm chav kawm, tus thawj dye zoo nrog rau tam sim no piv yog nyob deb ntawm, tsuas raug suav hais tias yog thawj daim ntawv ntawm cov kua dye niaj hnub no.Thaum lub sijhawm ntawd, kwv yees li 20% ntawm cov khoom lag luam yog kua, thiab cov kua dyes feem ntau yog VAT dyes thiab mordant dyes.

Xyoo 1923, cov neeg Askiv thawj zaug tau xaiv cov khoom siv ntxiv rau cov xim qub thiab tom qab sib tsoo, ua kom tsis muaj dej tsis sib haum dye aqueous dispersion.Tau xyoo 1910, feem ntau cov dyes tau raug tshem tawm thiab ua tiav rau hauv cov hmoov zoo ntawm ib qho me me.

Raws li cov ntaub ntawv xyoo 1924, thaum lub sijhawm ntawd kwv yees li 80% ntawm cov dye ua cov hmoov zoo, VAT dyes tau ua rau ntau yam ntawm cov khoom me me, los ntawm zoo heev rau 50um hmoov dye khoom.Tab sis thawj cov hmoov dye muaj qhov tsis zoo. ntawm cov plua plav hnyav thiab dej tsis zoo.

Tom qab xyoo 1930, cov dispersion hom dyes tau tsim ntxiv, tab sis tseem muaj qee qhov tsis zoo xws li nag lossis daus yooj yim thiab tsis zoo cia.

Tam sim no cov kua dye tom qab optimized ua cov qauv ntawm ntau yam khoom tau zoo heev, lub sij hawm cia yuav ncav cuag ntau tshaj li ib nrab xyoo tsis muaj deterioration, kua dyeing nqi yog tsawg, yooj yim rau siv thiab tau tsim tas li.

Txij li thaum xyoo 1950, qhov tshwm sim ntawm lub tshuab sanding tau txhawb txoj kev loj hlob ntawm kev kho tom qab siv tshuab. Kev sib tsoo ntub dej nrog lub tshuab xuab zeb tuaj yeem tau txais cov khoom me me thiab nqaim dua. Ntxiv rau, cov txheej txheem ua tau zoo tuaj yeem ua kom cov ntsiab lus ntawm cov xim tuaj yeem ncav cuag li 1um, thiab cov khoom tsim los ntawm cov txheej txheem tshiab thiab cov khoom siv tau zoo dua qub, thiab kev ua cov dyes insoluble ua tau zoo heev.

Nrog rau kev nce qib ntawm cov khoom siv tshuaj lom neeg thiab cov khoom siv tshuaj, granular dyes pib tshwm sim.Granular dye pom meej granularity ntawm 100 ~ 300 um, muaj hollow particles kuj muaj cov khoom, cov liquidity yog zoo dua cov hmoov dye, wettability, dispersion, thiab kuj overcomes. qhov tsis zoo ntawm cov hmoov dye hmoov av ntab saum ntuj, cov ntaub ntawv ntau npaum li cas tau tshwm sim tam sim ntawd tau txais tos los ntawm lub tuam tsev tsim khoom thiab daim ntawv thov, tam sim no ntau cov dyes tau ua tiav rau hauv cov khoom granular.