Vim li cas Colours yas khoom ploj?
Hauv lub neej txhua hnub, xim yas khoom nyob txhua qhov chaw, txhawb peb lub neej tib lub sijhawm, cov teeb meem yas fading tau dhau los ua teeb meem. Cov fading ntawm cov khoom lag luam yas muaj feem xyuam rau qhov kub tsis kam, lub teeb tsis kam (hou) ntawm cov colorant, kua qaub thiab alkali tsis kam, thiab cov khoom ntawm cov khoom siv ntawm cov khoom siv.Heat tsis kam tiv taus Thaum tshav kub kub txhais tau hais tias tsis muaj kev hloov pom tseeb ntawm cov xim, colorand thiab kev ua tiav ntawm qee qhov ntsuas kub thiab nyob hauv ib lub sijhawm ntawm lub sijhawm. Colorants feem ntau tau raug rau thaum tshav kub kub hauv cov yas yas, uas feem ntau tawg, ua rau muaj kev hloov xim. Generalin inorganic pigments muaj cov tshuaj tiv thaiv tshav kub zoo, tab sis cov organic pigments thiab dyes ntawm tshav kub tsis sib xws, tuaj yeem tswj cov organic xim ruaj khov ntawm qhov kub, qhov cov ntsiab lus feem ntau yog molybdenum, xiav thiab acetaminophen, isomoquinone daj thiab xim liab. Yog li, nws tseem ceeb tshwj xeeb los xaiv cov colorant uas yog los ntawm kev ntsuas ua haujlwm thaum tshav kub kub.
Lub teeb (tos) lub teeb tiv thaiv lub zog txhais tau tias muaj peev xwm ntawm cov xim thiab txheej txheem polymer kom tswj tau lawv cov xim thaum raug tshav ntuj. Qhov laj thawj tseem ceeb ntawm qhov hloov ntawm lub colorants thiab hnub ci yog qhov kev puas tsuaj los ntawm UV thiab pom lub teeb nyob rau hauv tshav ntuj rau cov khoom lag luam xim. Huab cua tiv thaiv huab cua txhais tias xim hloov pauv qhov kub ntawm lub ntiaj teb ntuj thiab ntub dej ntawm nag thiab lwg los ntawm cov xim ntawm cov xim antnerizer thiab polymer system. Lub teeb tawm tsam lub teeb ua haujlwm raug txiav txim siab raws li 8 theem, 8 qib yog qhov zoo tshaj plaws, 1 yog qhov phem tshaj. Huab cua qhov ntsuas huab cua tau txiav txim siab yog ntawm 5 theem, 5 theem ntawm qhov zoo tshaj plaws, 1 theem ntawm qhov tsis zoo. Qhov tseem ceeb ntawm lub teeb tiv thaiv nws txawv raws li nws siv thiab yog qee zaum tseem ceeb tshaj plaws, xws li lub tsev tsim vaj huam sib luag, ntawv xov xwm thiab tsheb tav toj rau kev siv sab nraum zoov, qhov twg cov khoom lag luam yuav cia siab nyob rau hauv tag nrho hnub tshav ntuj raug rau tsawg kawg ib xyoo caum.cid-resistant alkaline Colouring yas khoom muaj feem xyuam rau cov tshuaj lom neeg (acid-resistant alkaline, redox-resistant) ntawm cov xim. Xws li chromium liab kua qaub tsis kam, tab sis nkag siab zoo rau alkali, cadmium daj kua qaub tsis kam, cov ob xim thiab phenolic resin rau qee qhov xim muaj los ua lub luag haujlwm txo qis, ua rau muaj kev cuam tshuam zoo rau cov kub tiv thaiv cov xim, huab cua tsis kam thiab fading. Rau qhov fading ntawm yas xim cov khoom lag luam, qhov tsim nyog colorant surfactant, dispersant, cov khoom ua haujlwm cob thiab cov khoom tiv thaiv kev laus yuav tsum siv tsuas yog tom qab kev ntsuas kev soj ntsuam raws li cov txheej txheem ua thiab siv cov khoom ntawm cov khoom yas.
