Dye kev ua tau zoo yog qhov taw qhia tseem ceeb ntawm nws lub peev xwm ua kom ruaj khov thiab ua tau raws li qhov xav tau ntawm cov xim thiab kev ua haujlwm hauv kev lag luam. Nws encompasses ntau qhov ntev, nrog rau kev tsim xim, xim ceev, affinity, dispersibility, ib puag ncig compatibility, thiab tshwj xeeb functions. Cov khoom no yog sib koom ua ke txiav txim los ntawm cov xim ntawm cov qauv molecular, cov txheej txheem kev npaj, thiab kev siv cov xwm txheej, cuam tshuam ncaj qha rau cov khoom lag luam, kev ua tau zoo, thiab kawg - siv tus nqi.
Kev loj hlob xim yog qhov tseem ceeb ntawm kev ua tau zoo ntawm dyes, manifested nyob rau hauv lub saturation, brightness, thiab xim tseeb ntawm cov xim. Nws essence stems los ntawm cov yam ntxwv haum ntawm pom lub teeb los ntawm conjugated π-electron system ntawm lub molecule. Los ntawm kev kho qhov ntev ntawm conjugation thiab cov teebmeem hluav taws xob ntawm cov khoom siv hloov pauv, qhov nqus nqus thiab siv zog tuaj yeem tswj tau qhov tseeb, ua tiav qhov dav -spectrum chromatographic kev pab them nqi ntawm lub teeb mus rau qhov tsaus ntuj. Lub zog tinting siab yog qhov txiaj ntsig txuas ntxiv ntawm kev tsim xim; Txawm tias muaj pes tsawg tus dyeing tuaj yeem ua tiav cov xim zoo tagnrho, pab txo kev siv thiab nqi thaum tseem txo cov dej khib nyiab.
Xim ceev ceev yog cov xim muaj peev xwm los tswj cov xim ruaj khov nyob rau hauv cov kev cuam tshuam sab nraud, nrog rau cov cim xws li lightfastness, ntxuav ceev, rubbing ceev, perspiration ceev, thiab alkali ceev. Piv txwv li, anthraquinone dyes, vim lawv cov qauv sib txuas nruj, ua kom pom kev zoo nkauj, ua rau lawv haum rau cov khoom siv sab nraum zoov; reactive dyes tsim covalent bonds nrog cellulose fibers, ua rau zoo heev ntxuav ceev, ua tau raws li qhov xav tau ntawm cov khaub ncaws nquag ntxhua. Cov xim zoo tshaj plaws tsis yog tsuas yog txuas ntxiv cov khoom lag luam tab sis kuj txo cov kev ua haujlwm thiab cov khoom siv pov tseg, ua raws li cov qauv tsim khoom ruaj khov.
Affinity yog hais txog cov xim muaj peev xwm los khi rau lub substrate, nyob ntawm seb qhov molecular polarity, kev ua haujlwm pab pawg, thiab cov yam ntxwv ntawm lub substrate. Hydrophilic fibers (xws li paj rwb thiab linen) yog qhov zoo tshaj plaws rau cov dyes uas muaj dej- cov soluble pawg xws li sulfonic acid pawg uas tuaj yeem cuam tshuam nrog hydroxyl pawg (piv txwv li, reactive thiab ncaj dyes); hydrophobic fibers (xws li polyester) tso siab rau hydrophobic kev sib cuam tshuam thiab me me -molecule penetration mechanism ntawm disperse dyes rau fixation. Zoo affinity ua kom cov xim sib txawv nkag mus thiab ruaj adhesion, tiv thaiv cov xim sib txawv thiab shedding.
Dispersion feem ntau cuam tshuam rau kev faib khoom ntawm cov dyes hauv nruab nrab, thiab tseem ceeb tshwj xeeb rau cov kua thiab muab tshuaj txhuam. Lub kaw lus ruaj khov dispersion tiv thaiv particle aggregation lossis nag lossis daus, ua kom muaj kev sib haum xeeb hauv cov txheej txheem dyeing lossis txheej txheej thiab txo cov xim tsis xws luag. Kev npaj cov txheej txheem (xws li kev sib tsoo fineness thiab dispersant xaiv) thiab cia tej yam kev mob yog ib qho tseem ceeb rau kev tswj dispersibility.
Environmental compatibility yog ib qho tseem ceeb ntawm qhov kev ua tau zoo ntawm cov xim niaj hnub, nrog rau cov yam ntxwv xws li cov tshuaj lom neeg tsawg, tsis muaj mob, thiab biodegradability. Los ntawm kev tswj hwm cov tshuaj tsw qab tsis zoo, cov hlau hnyav, thiab cov khoom rhiab heev, thiab los ntawm kev siv dej-raws li kev hloov pauv rau cov kuab tshuaj-raws li cov txheej txheem, biocatalytic synthesis, thiab cov txheej txheem rov ua dua tshiab, cov txheej txheem ecological ntawm kev tsim khoom thiab kev siv yuav raug txo kom tsawg, ua tau raws li cov kev cai ntawm kev lag luam ntsuab thiab ntsuab.
Tsis tas li ntawd, qee cov dyes muaj cov haujlwm tshwj xeeb, xws li fluorescence, phosphorescence, photochromism, thiab thermosensitivity, uas tuaj yeem txuas ntxiv mus rau thaj chaw xws li tiv thaiv - cuav, ntim ntse, thiab hloov pauv photoelectric, muab cov khoom lag luam nrog cov ntaub ntawv qhia thiab cov lus teb muaj peev xwm.
Hauv cov ntsiab lus, kev ua haujlwm dye yog ib qho kev xav txog cov khoom siv tshuaj lom neeg thiab kev siv tau zoo. Nws qhov kev ua kom zoo dua yuav tsum suav nrog kev siv xim, nrawm, kev sib raug zoo, kev sib cais, thiab kev phooj ywg ib puag ncig, thiab nthuav dav daim ntawv thov ciam teb los ntawm kev ua haujlwm tshiab, muab kev txhawb nqa tseem ceeb rau siab -kev nthuav qhia xim zoo thiab kev txhim kho nyob rau hauv ntau yam lag luam.
