Ua ntej, dyeing zog ntawm reactive dyes
Thaum dyeing reactive dyes, cov dye tuaj yeem ncaj qha dyed rau daim ntaub, thiab vim nws muaj peev xwm diffusion zoo, nws yooj yim ua rau cov xim diffuse rau hauv cov fiber ntau, tab sis vim nws tseem tsis tau muaj tshuaj lom nrog cov fiber ntau nyob rau lub sijhawm no, Nws yog ib qho yooj yim los ntxuav tawm feem ntau ntawm cov dye nrog dej, yog li nws yuav tsum tau siv los txhawb cov tshuaj tiv thaiv ntawm cov dye thiab fiber, thiab cov dye yog tsau ntawm fiber ntau. Tus qub hu ua dyeing, thiab tom kawg yog hu ua kho.
Thib ob, cov txheej txheem ua haujlwm ntawm reactive dyes
Raws li cov kev cai dyeing sib txawv, reactive dyes tuaj yeem dyed los ntawm ob txoj kev, raws li, dov thiab pad dyeing.
1. Dyeing
Cov txheej txheem dyeing yog tsim rau me me batch thiab ntau ntau ntau lawm. Nws yog ib qho yooj yim rau zas xim, hloov tau yooj yim, tuaj yeem dyed lub teeb, nruab nrab thiab tsaus. Vim hais tias ntawm ntau hom dyes, qhov ncaj loj ntawm cov fiber ntau tsis zoo ib yam, yog li cov dyeing tej yam kev mob, kho kub, alkali ntau npaum thiab electrolyte ntau npaum li cas kuj txawv.
Kev ua haujlwm dyeing reactive dyeing yog ntxuav cov ntaub npuag rov qab nrog 80 ~ 90 degree dej kub rau 3 zaug, thiab tom qab ntawd taug kev ob peb zaug nrog dej txias kom ze rau qhov kub ntawm dyeing, ntxiv cov xim yaj rau 2 mus rau 3 zaug, ntxiv cov electrolyte thiab tom qab ntawd dye 3 mus rau 4 zaug, thiab ntxiv cov khoom kho kom dye 5 mus rau 6 zaug.
Txheej txheem ua haujlwm:
Xim kho → dej txias → dej kub → soaping → dej kub → dej txias → ziab
Xiaobian ceeb toom rau koj tias hauv kev ua haujlwm dyeing, pH tus nqi ntawm cov xim yuav tsum tau tswj ntawm qhov nruab nrab, siab dhau, qhov dyeing tsis sib npaug, thiab yooj yim ua rau hydrolysis ntawm cov xim. Tom qab hydrolysis, reactive dyes poob lub peev xwm los zas fibers. Yog li ntawd, nws yuav tsum tau ntxuav ob zaug ua ntej dyeing, thiab qee cov K-hom reactive dyes yuav tsum tau boiled ntawm kub. Yuav kom tswj tau qhov dyeing thiab kho qhov kub thiab txias, dye VAT yuav tsum tau them los tiv thaiv qhov zoo los ntawm kev cuam tshuam los ntawm chav khiav tawm thiab qhov kub tsis sib xws ntawm daim ntaub yob.
Khoom xim nrog alkali tus neeg sawv cev, kuj tuaj yeem siv trisodium phosphate.
2. Pauv dyeing
Ib da dej thiab ob txoj kev da dej rau pad dyeing ntawm reactive dyes.
Ib txoj kev da dej: cov tshuaj zas xim thiab alkali muab tso ua ke, tus neeg sawv cev alkali yog ci dej qab zib, tom qab dov los ntawm steaming los yog ci, ci dej qab zib yog decomposed rau hauv sodium formate, thiaj li hais tias tus nqi pH nce, uas yog conducive rau dye fixation, X hom reactive dye ntau siv ib txoj kev da dej.
Ob txoj kev da dej: Tom qab dipping cov tshuaj zas xim, dipping cov xim kho cov tshuaj uas muaj alkali, thiab tom qab ntawd steaming cov xim kho, tus neeg sawv cev alkali siv tuaj yeem yog dej qab zib tshauv lossis trisodium phosphate, lossis ci dej qab zib tuaj yeem ntxiv rau hauv thawj da dej, thiab soda tshauv tuaj yeem ntxiv rau hauv chav da dej thib ob.