Qhov txawv ntawm cationic thiab anionic dyes yog cov cationic dyes yog qhov yooj yim, whereas anionic dyes yog acidic.
Dyes yog cov khoom siv ntuj lossis hluavtaws uas peb tuaj yeem siv los ntxiv xim lossis hloov xim ntawm cov khoom. Muaj ntau hom dyes, xws li cationic thiab anionic dyes.
Cationic Dyes yog dab tsi?
Cationic dyes yog cov khoom siv zas xim uas muaj cov khoom siv uas ua rau lawv sib cais mus rau hauv cov ions zoo hauv cov tshuaj aqueous. Hauv lwm lo lus, cationic dyes cais ua ions thiab tsim cations thaum ntxiv rau dej. Ntxiv mus, thaum cov cationic dyes ntxiv rau fibers, cov cations tuaj yeem cuam tshuam nrog cov pab pawg tsis zoo ntawm fiber ntau molecules, tsim cov ntsev. Cov ntsev no tuaj yeem txuas ntxiv mus rau cov fibers. Yog li ntawd, nws tuaj yeem ua rau cov fiber ntau.
Feem ntau, cationic dyes yog tsim los ntawm alkaline dyes. Yog li, lub hauv paus ntsiab lus ntawm kev sib xyaw ntawm cationic dyes nrog fibers yog los ntawm kev sib xyaw ntawm cations nrog cov acidic pawg uas muaj nyob rau hauv fiber. Keeb kwm, hom dyes no muaj txiaj ntsig zoo hauv staining silk, tawv, ntawv, thiab paj rwb. Tsis tas li ntawd, cov dyes muaj cov ntawv thov hauv kev tsim cov number case thiab luam cov ntawv. Tsis tas li ntawd, qhov kev thov rau cov xim no hauv kev lag luam textile tau nce vim qhov kev taw qhia ntawm cov hluavtaws fibers.
Daim duab 01: Lee's Stain siv hauv lub gallbladder Cells
Cia peb xav txog kev dyeing ntawm hluavtaws fibers nrog cationic dyes. Ua ntej, cov cationic dye tau absorbed los ntawm qhov chaw ntawm fiber, thiab nws diffuses mus rau hauv lub sab hauv ntawm lub fiber ntawm high kub. Nyob ntawd, cov xim khi rau cov active acid pawg ntawm fiber. Txawm li cas los xij, tus naj npawb ntawm cov dye molecules uas tuaj yeem khi nrog cov pab pawg acid yog txwv, thiab tus lej no tuaj yeem nce ntxiv los ntawm kev kho qhov ntsuas kub thiab fiber ntau. Peb tuaj yeem ua tus cwj pwm muaj peev xwm dyeing ntawm cationic dyes siv affinity thiab diffusibility.
Dab tsi yog Anionic Dyes
Anionic dyes yog cov dyes muaj cov khoom siv uas tuaj yeem ua rau cov dye molecule dissociate rau hauv cov ions tsis zoo hauv cov tshuaj aqueous. Hauv lwm lo lus, anionic dyes cais rau hauv ions thiab tsim anions thaum ntxiv rau dej. Feem ntau, anionic dyes yog acidic dyes.
Daim duab 02: Cov Qauv Tshuaj ntawm Acid Liab 88 Dye
hom dyes no muaj cov acidic pawg, suav nrog sulfate pawg thiab carboxylic pawg. Peb tuaj yeem siv hom dyes rau xim wool, txhob lo lo ntxhuav thiab nylon los ntawm kev tsim cov ionic bond ntawm cov kua qaub ntawm cov dye thiab pawg amine ntawm cov khoom siv fiber ntau.
Feem ntau, cov kua qaub dyes lossis anionic dyes tau ntxiv rau cov fibers ntawm cov pH qis thaum nws los txog rau kev lag luam textile. Qee zaum, cov dyes tuaj yeem siv los ua zaub mov xim thiab. Qee cov dyes kuj tseem ceeb rau stain organelles hauv kev kho mob.
Qhov txawv ntawm Cationic thiab Anionic Dyes yog dab tsi?
Dyes yog cov khoom peb tuaj yeem siv xim rau lwm cov ntaub ntawv. Muaj cov dyes nrog cov xim sib txawv uas tuaj yeem siv tau raws li qhov xav tau. Cationic dyes yog cov khoom siv dyeing uas muaj cov khoom siv uas ua rau lawv sib cais mus rau hauv qhov zoo ions hauv cov kua dej, thaum anionic dyes yog cov khoom siv zas xim uas muaj cov khoom siv uas tuaj yeem ua rau cov xim molecule dissociate rau qhov tsis zoo them ions hauv cov tshuaj aqueous. Qhov sib txawv tseem ceeb ntawm cationic thiab anionic dyes yog cationic dyes yog qhov yooj yim, whereas anionic dyes yog acidic.
Cov infographic hauv qab no nthuav tawm qhov sib txawv ntawm cationic thiab anionic dyes hauv daim ntawv tabular.
Summary – Cationic vs Anionic Dyes
Muaj ob hom xim loj xws li cationic dyes thiab anionic dyes. Ob hom no txawv ntawm ib leeg raws li lawv cov cwj pwm chemical. Qhov sib txawv tseem ceeb ntawm cationic thiab anionic dyes yog cationic dyes yog qhov yooj yim, whereas anionic dyes yog acidic.
