Hauv kev tsim, kev faib tawm, thiab kev siv cov dyes, cov yam ntxwv zoo li yog ib qho ntawm cov cim tseem ceeb rau kev txiav txim rau lawv hom, purity, thiab kev ua haujlwm. Txawm hais tias tus nqi tseem ceeb ntawm dyes nyob rau hauv lawv cov tshuaj lom neeg thiab xim - txhim kho lub peev xwm, lawv cov tsos, xim kev ua tau zoo, thiab lub cev lub cev feem ntau muab cov neeg siv nrog cov ntaub ntawv ua ntej intuitive thiab ua lub luag haujlwm pabcuam hauv kev tswj kom zoo thiab cov txheej txheem sib txuam.
Cov tsos mob ntawm dyes yog thawj zaug tshwm sim hauv lawv daim ntawv lub cev. Cov dyes tuaj yeem ua tau ntau yam xws li hmoov, granules, kua, thiab muab tshuaj txhuam. Hmoov dyes feem ntau yog cov khoom zoo uas tau qhuav, crushed, thiab sieved; Lub uniformity ntawm particle loj faib ncaj qha cuam tshuam rau lawv cov dissolution tus nqi thiab dispersion nyhuv. Granular dyes txhim kho flowability thiab plua plav- pov thawj kev ua tau zoo los ntawm cov txheej txheem granulation, ua kom yooj yim tsis siv neeg qhov hnyav thiab thauj khoom. Cov kua dyes feem ntau yog cov concentrated systems ua ntej-kua lossis dispersed hauv dej thiab tuaj yeem siv ncaj qha rau hauv cov txheej txheem dyeing tas li; lawv transparency thiab uniformity qhia txog kev ruaj ntseg ntawm cov txheej txheem npaj. Muab tshuaj zawv plaub hau ua ib qho siab -viscosity suspension raws li cov xim thiab cov polymeric dispersants, thiab feem ntau pom muaj nyob rau hauv tshwj xeeb luam ntawv thiab txheej teb.
Xim thiab gloss yog lwm qhov tseem ceeb ntawm dye tsos. Cov xim ntawm cov xim ntshiab yuav tsum phim nws cov xim nominal, thiab yuav tsum tsis muaj qhov txawv xim txawv lossis greying nyob rau hauv lub teeb ci. High- cov hmoov zas xim zoo muaj xim tag nrho thiab tsis muaj impurities, thaum cov kua dyes yuav tsum meej los yog me ntsis opalescent, tsis muaj txheej, sedimentation, los yog flocculation. Txawm hais tias gloss tsis yog qhov kev ntsuas tseem ceeb rau txhua qhov dyes, hauv qee qhov dyes siv rau txheej txheej, nruab nrab gloss tuaj yeem txhim kho qhov pom kev zoo nkauj, thaum muaj kev cuam tshuam ntau dhau los yog qhov tsis sib xws yuav qhia tau tias tsis muaj kev tawg lossis qhov txawv txav.
Cov yam ntxwv zoo ntawm dyes kuj tseem cuam tshuam nrog cov ntsiab lus impurity thiab qib ua. Dyes uas muaj ntau yam khoom tsis huv lossis tsis muaj kev cuam tshuam feem ntau tshwm sim raws li cov khoom tsis muaj xim lossis cov pob hauv cov hmoov; Yog tias cov kua dyes tau tshem tawm cov teeb meem lossis cov xim pos huab, nws yuav yog vim tsis tiav pom lossis tsis raug cai. Tsis tas li ntawd, clumping, deliquescence, thiab txheej txheej ncaj qha cuam tshuam rau qhov tseeb ntawm qhov hnyav thiab qhov sib xws ntawm dyeing, thiab yuav tsum tau tiv thaiv thaum khaws cia, thauj, thiab siv.
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias cov yam ntxwv zoo nkaus li tuaj yeem ua lub hauv paus ua ntej rau kev txiav txim thiab tsis tuaj yeem hloov qhov kev ntsuam xyuas ntawm physicochemical indicators xws li spectral tsom xam, chromatographic nrhiav tau, thiab ceev ceev. Ntau hom dyes nthuav tawm qhov tshwm sim vim qhov sib txawv ntawm cov qauv molecular thiab dispersion media; Cov neeg siv yuav tsum tau txiav txim siab raws li hom xim thiab daim ntawv thov scenario thaum txheeb xyuas lawv.
Feem ntau hais lus, cov yam ntxwv ntawm cov dyes muaj xws li morphology, xim, gloss, thiab purity. Lawv ua haujlwm ncaj qha rau cov txheej txheem kev tsim khoom thiab kev tshuaj xyuas zoo thiab tseem yog qhov yuav tsum tau ua ua ntej txhawm rau ua kom muaj kev ruaj ntseg ntawm cov txheej txheem tom ntej. Kev soj ntsuam thiab kev tswj hwm ntawm cov yam ntxwv no tuaj yeem txo qhov kev hloov pauv zoo ntawm qhov chaw, txhawb kev ua haujlwm zoo ntawm dyeing thiab tiav kev lag luam thiab lwm yam kev lag luam.
