disperse dyes

Disperse dyes tau Ameslikas tsim rau cov dyeing ntawm cellulose acetate, thiab yog dej-insoluble. Lub dyes yog finely av nyob rau hauv lub xub ntiag ntawm ib tug Dispersing neeg saib xyuas thiab muag raws li ib tug muab tshuaj txhuam, los yog tshuaj tsuag-qhuav thiab muag raws li ib tug hmoov. Lawv lub ntsiab siv yog zas polyester, tab sis lawv muaj peev xwm kuj yuav siv tau los zas ntaub lis loos, cellulose triacetate, thiab acrylic fibers. Nyob rau hauv tej rooj plaub, ib tug dyeing kub ntawm 130 ° C (266 ° F) yog yuav tsum tau, thiab ib tug pa dyebath siv. Tus heev zoo particle loj muab ib tug loj deg hauv cheeb tsam uas pab nyias mus nyias mus pub rau uptake los ntawm cov fiber. Lub dyeing tus nqi yuav tsum tau significantly los ntawm cov kev xaiv ntawm dispersing neeg sawv cev siv thaum lub sij hawm sib tsoo.

acid dyes

Acid dyes yog dej-soluble anionic dyes uas yog siv rau fibers xws li txhob lo lo ntxhuav, wool, nylon thiab hloov acrylic fibers siv nruab nrab rau acid zas xim da. Attachment mus rau lub fiber yog ntaus nqi, yam tsawg kawg ib nrab, rau ntsev tsim ntawm anionic pawg nyob rau hauv lub dyes thiab cationic pawg nyob rau hauv lub fiber. Acid dyes yog tsis substantive rau cellulosic fibers. Feem ntau cov hluavtaws zaub mov xim lub caij nplooj zeeg nyob rau hauv no.

Basic dyes

Basic dyes yog dej-soluble cationic dyes uas yog raws mas thov kom acrylic fibers, tab sis nrhiav tau ib co kev siv rau wool thiab txhob lo lo ntxhuav. Feem ntau acetic acid yog ntxiv rau cov xim da dej los pab cov uptake ntawm cov xim rau cov fiber. Basic dyes kuj siv nyob rau hauv lub coloration ntawm daim ntawv.

Vat dyes

Vat dyes yog yeej tseem zoo insoluble nyob rau hauv dej thiab tsis txawj ntawm dyeing fibers ncaj qha. Txawm li cas los, yuav txo tau nyob rau hauv alkaline cawv ua lub dej-soluble alkali hlau ntsev ntawm cov xim. Qhov no daim ntawv yog feem ntau tsis muaj kob, nyob rau hauv uas cov ntaub ntawv nws yog xa mus rau raws li ib tug Leuco zas, thiab muaj ib tug affinity rau lub textile fiber. Tom ntej oxidation kho tus thawj insoluble zas xim. Cov xim ntawm cov denim yog vim indigo, tus thawj vat zas xim.

Direct dyes

Direct dyes yog feem ntau nqa tawm nyob rau hauv ib tug nruab nrab los yog me ntsis alkaline zas xim da dej, nyob ze ntawm boiling point, nrog rau qhov sib ntxiv ntawm tog twg los sodium tshuaj dawb (NaCl) los yog sodium sulfate (Na2SO4) los yog sodium carbonate (Na2CO3). Direct dyes yog siv nyob rau hauv paj rwb, daim ntawv, tawv, wool, txhob lo lo ntxhuav thiab nylon. Lawv kuj siv tau raws li pH ntsuas thiab raws li lom stains.

sulfur dyes

Sulfur dyes yog pheej yig dyes siv los zas paj rwb uas tsaus nti xim. Dyeing yog mob los ntawm cua sov rau cov ntaub nyob rau hauv ib tug tov ntawm ib tug organic compound, feem ntau ib tug nitrophenol derivative, thiab sulfide los yog polysulfide. Cov organic compound reacts nrog lub sulfide qhov chaw tsim tsaus xim uas ua raws li cov ntaub. Sulfur Dub 1, qhov loj tshaj plaws muag zas xim los ntawm lub ntim, tsis muaj ib tug zoo txhais tau hais tias cov tshuaj qauv.

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