1. Kev sib piv ntawm lub teeb ntsuas nrawm nrawm:
Kev ntsuam xyuas lub teeb nrawm yog hais txog kev tso cov qauv ntawm cov ntawv ci thiab txheej txheej ntawm xiav lub pob zeb tsiaj qauv cov qauv hauv cov duab hluav taws xob hauv cov teeb pom kev zoo, thiab tom qab muab piv rau ob qho los hloov cov xim nrawm txhawm rau ntsuas cov xim ceev.
2. Txoj kev los txhim kho lub teeb nrawm:
Lub photofading mechanism ntawm dyes yog qhov nyuaj heev, tab sis feem ntau vim tias cov dyes tau zoo siab tom qab nqus cov duab, thiab muaj cov txheej txheem ntawm photochemical tshwm sim los rhuav tshem cov qauv, ua rau muaj kev sib cais thiab fading. Lub teeb nrawm ntawm textiles feem ntau nyob ntawm cov qauv tshuaj ntawm qhov zas xim, nrog rau nws cov kev sib sau ua ke, lub xeev muab kev sib xyaw thiab cov xim sib xyaw. Yog li ntawd, kev xaiv kom zoo ntawm kev zas yog qhov tseem ceeb heev.
3. Xaiv cov dyes raws li cov khoom siv fiber ntau thiab cov ntawv thov textile:
Rau cov cellulose fiber textiles, dyes nrog oxidation zoo dua yuav tsum tau xaiv; rau cov tshuaj fiber, dyes nrog zoo dua tiv thaiv kom txo los yog muaj cov tsis muaj zog oxidizing ntxiv yuav tsum tau xaiv; rau lwm cov fibers, dyes yuav tsum tau xaiv raws li cov nyhuv ntawm fading. Txhawm rau txhawm rau txhim kho photooxidation kev ruaj ntseg ntawm azo pawg nyob rau hauv cov qauv molecular ntawm cov xim, thaum lub sij hawm zas hluavtaws txheej txheem, qee cov khoom siv hluav taws xob-tshem tawm pawg feem ntau yog qhia ntawm ortho txoj haujlwm ntawm azo pawg, yog li txo cov hluav taws xob huab hluav taws xob ntawm cov azo pawg roj atoms. Tsis tas li ntawd, nws tseem tuaj yeem nyiam cov pab pawg hydroxyl ntawm ob txoj haujlwm nyob ib sab ntawm pawg azo, thiab siv nws txoj haujlwm ua kom sib xyaw ua ke nrog cov hlau hnyav, yog li txo cov hluav taws xob hauv hluav taws xob ntawm lub azo hydrogen atom, thiab tiv thaiv azo pawg, thiab Thaum kawg txhim kho Dye fastness mus rau lub teeb.
4. Lub zas yuav tsum raug xaiv raws li xim xim:
Qhov ntau ntawm qhov kev ntsuam xyuas tau ua pov thawj tias lub teeb nrawm ntawm reactive dyes ntawm cellulose fibers yog ib qho sib npaug rau kev ntxoov ntxoo ntawm kev zas xim, uas yog, xim tsaus, xim zoo dua lub teeb nrawm. Qhov no yog vim tias qhov ntau dua cov xim ntawm cov xim nyob rau hauv lub fiber, ntau dua qhov sib xyaw ntawm cov zas xim zas, qhov chaw me me dua rau thaj tsam ntawm tib tus nqi ntawm cov zas xim raug rau huab cua, noo noo, thiab lub teeb, thiab qis dua qhov muaj feem ntawm cov xim tau oxidized los ntawm lub teeb. Ntawm qhov tsis sib xws, lub teeb ci xim, ntau lub dyes nyob rau hauv lub xeev tawg heev ntawm cov fiber ntau, thiab qhov tshwm sim ntawm kev raug lub teeb pom kev siab dua, uas thaum kawg txo cov xim nrawm rau lub teeb. Yog li ntawd, rau lub teeb xim muaj ntau yam, dyes nrog lub teeb nrawm dua yuav tsum tau siv. Ntxiv rau, ntxiv rau cov neeg ua tiav ntau yam xws li ua kom mos muag thiab tiv thaiv cov tawv nqaij ua rau cov npuag kuj tseem yuav txo lub teeb nrawm ntawm qhov khoom. Yog li, dyes uas tsis rhiab rau cov kab mob ua tiav no yuav tsum tau xaiv.
5. Dyes yuav tsum tau xaiv rau lub teeb ci thiab qhov zoo sib xws:
Cov khoom pleev xim sib txawv muaj cov yam ntxwv fading sib txawv, thiab txawm tias lub tshuab ntawm lub teeb fading yog txawv. Qee zaum, muaj ib qho zas xim ua rau pom qhov ntog ntawm lwm qhov xim. Thaum muab cov xim sib tov, koj yuav tsum xaiv cov xim uas tsis mloog ib leeg thiab kuj tuaj yeem txhim kho lub teeb xim kom ruaj khov. Qhov no yog qhov tshwj xeeb tshaj yog thaum zas dub ntau yam xws li dub. Ib ntawm peb lub xim tsis ploj mus sai heev, uas yuav ua rau cov xim fiber ntau los yog ntaub hloov pauv xim, thiab cov xim faded faus tseem yuav cuam tshuam rau photostability ntawm lwm ob lub dyes uas tsis tau ploj mus. Kev tswjhwm tsim nyog rau kev zas xim kom ua tiav cov zas xim thiab tshuaj fiber ntau, thiab sim ua kom tsis txhob muaj cov xim hydrolysis thiab cov xim tsis muaj nyob nrog cov xim, yog txoj hauv kev tseem ceeb kom tau txais lub teeb nrawm dua.
