Disperse dyes yog qhov ua rau muaj teeb meem xws li tsis sib xws dyeing, recrystallization, agglomeration thiab coking.Yuav tiv thaiv lawv li cas?Disperse Dyeing Supplier yuav qhia koj txog nws.
1. Tsis sib xws Dyeing
Lub uniformity ntawm dye absorption yog muaj feem xyuam rau qhov piv ntawm cov dye cawv flow rate thiab absorbance.Nyob rau theem xim xim, cov kev taw qhia ntawm cov kua ntws yog hloov txhua 8 lub voj voog.Txo qhov sib piv ntawm da dej los ntawm 1: 12 mus rau 1: 6 tuaj yeem hloov pauv qhov sib txawv ntawm lub sijhawm tsiv teb tsaws, txawm hais tias qhov kev tsis sib xws ntawm qhov pib ntawm dyeing yog pom tseeb dua.Thaum sib tov thiab dyeing, nws tsis txaus los xaiv dyes nrog cov khoom zoo sib xws kom ntseeg tau tias qib dyeing.
Lub sijhawm no, qhov sib xyaw ua ke ua lub luag haujlwm tseem ceeb.Yog hais tias tus nqi ntawm peb dyes siv nyob rau hauv cov xim sib xws yog tib yam, nws yog tsim nyog los siv dyes nrog tib diffusion zog.Txawm li cas los xij, yog tias qhov kev faib ua feem ntawm ob lub dyes loj dua, qhov diffusibility ntawm qhov thib peb dye yuav tsum qis dua, txwv tsis pub nws yuav raug tso tawm sai dua li ob lub dyes, uas yuav yooj yim ua rau tsis sib xws.
2. Recrystallization
Disperse Dyeing feem ntau recrystallize cov khoom loj dua 1nm vim rov ua cua sov thiab txias.Ntxiv cov dispersants ntxiv tuaj yeem txo qis recrystallization.Thaum lub sij hawm dyeing, thaum lub dyeing da dej txias los ntawm 130 ° C mus rau 90 ° C, qee cov dyes feem ntau yooj yim rau recrystallize, ua rau tsis zoo rubbing ceev ntawm cov khoom dyed, thiab txawm clogging lub lim nyob rau hauv qhov kub thiab txias dyeing tshuab. .
Kev Tiv Thaiv Kev Tiv Thaiv
Khaws 100 ℃ rau lub sijhawm ntev, cov dye yog yooj yim rau agglomerate, kho cov cua kub ceev ntawm 100 ℃ mus rau 130 ℃;
Yog hais tias cov xim nyob rau hauv lub dye da dej recrystallizes tom qab ncav lub dyeing tshuav nyiaj li cas, ntau dispersant yuav tsum tau ntxiv;
Qee cov xim liab disperse dyes yog qhov ua rau recrystallization thaum kawg ntawm dyeing, txawm tias lawv cov concentration qis dua li qib saturation, tshwj xeeb tshaj yog thaum dyeing cov xim tsaus.Tshwj xeeb tshaj yog thaum dyeing nrog dej nyuaj, nws yog ib qho yooj yim rau chelate nrog hlau ions.Cov txiaj ntsig chelate muaj cov dej tsis zoo nyob rau hauv cov xwm txheej dyeing thiab yuav tawm cov xim xiav los yog xim streaks ntawm cov ntaub.
Cov yam uas ua rau recrystallization
Auxiliaries, winding roj, alkaline residues, thiab lwm yam ntxiv thaum spinning.Cov teeb meem no tuaj yeem zam tau los ntawm kev ua kom zoo dua ua ntej dyeing lossis ntxiv cov tshuaj chelating hauv da dej dye.Thaum cov stain tshwm sim, nws tuaj yeem raug tshem tawm los ntawm alkaline txo kev tu lossis kho cov kua qaub.
3. Agglomeration thiab tsom
Cov kev pab cuam
Nws tsis muaj zog rau cov nyhuv dissolving ntawm cov dispersant, txo cov electrostatic repulsion, thiab tsub kom qhov sib tsoo tus nqi ntawm cov dyes hais thiab txhim kho lawv lub zog kinetic.Feem ntau, qhov siab dua qhov dyeing concentration thiab kub, thiab ntev lub sij hawm dyeing, qhov ntau dua qhov muaj peev xwm ntawm agglomeration thiab coke.Dyeing auxiliaries xws li cov neeg nqa khoom thiab cov neeg ua hauj lwm qib tuaj yeem hloov tau yooj yim cov dispersant sib xyaw hauv cov xim, yog li txo qhov kev puas tsuaj.
Kev ntsuas los txhim kho kev ruaj ntseg thaum dyeing
Disperse cov xim ntawm 40 ° C thiab siv cov concentrated dispersion;
Kev tswj qhov kub zoo tshaj plaws thaum lub dyeing cawv yog rhuab;
Siv dispersant nrog kev tiv thaiv colloidal nyhuv;
Tsis txhob siv cov additives nrog huab point ntawm qhov kub thiab txias;
Ntxuav tag nrho cov dyes thiab xov xov auxiliaries nrog rau emulsifiers ua ntej dyeing;
Thaum lub sij hawm kub dyeing, tsis muaj cov cab kuj thiab tsis-ionic leveling tus neeg sawv cev yuav tsum tau ntxiv ua ntej feem ntau ntawm cov dyes tau dyed rau ntawm ntaub;
Tsis muaj ntsev, tsuas yog acetic acid los kho tus nqi PH;
Cov xov paj los yog cov ntaub dyed yuav tsum ua kom zoo ua ntej, thiab kev sim kuaj yuav tsum tau ua kom ntseeg tau tias qhov kev ruaj ntseg ntawm cov khoom tawg.
Post lub sij hawm: Nov-19-2020