sulfur dyes feem ntau yog siv rau dyeing paj rwb fibers, thiab kuj rau paj rwb / vinylon blended fabrics. Nws yog yaj nyob rau hauv sodium sulfide thiab yog ib qho kev xaiv zoo tshaj plaws rau cov khoom tsaus nti ntawm cellulose fibers, tshwj xeeb tshaj yog rau Sulfur Black 240% thiab Sulfur Blue 7dyeing. Cov niam txiv ntawm sulfur dyes tsis muaj affinity rau fibers, thiab nws cov qauv muaj sulfur bonds (-S-), disulfide bonds (-SS) los yog polysulfide bonds (-Sx-), uas yog txo rau sulfhydryl pawg (-SNa) nyob rau hauv lub Kev txiav txim ntawm sodium sulfide reductant.Ua dej-soluble leuco sodium ntsev. Leuco muaj affinity zoo rau cellulose fibers vim yog cov loj molecules ntawm dyes, uas tsim loj Van der Waals thiab hydrogen bonding rog nrog fibers. Txawm hais tias cov xim spectrum ntawm sulfur dyes tsis tiav, feem ntau yog xiav thiab dub, xim tsis ci, tab sis nws cov khoom siv tau yooj yim, tus nqi qis, cov txheej txheem dyeing yog yooj yim, xim sib piv yog yooj yim, thiab xim ceev ceev yog qhov zoo. .Nws yuav tsum tau muab sau tseg, txawm li cas los xij, qee yam sulfur dyes, xws li sulfur dub, yuav ua rau kev sib tw ntawm paj rwb.
Kev sib tw ntawm cov fiber ntau yuav tsum tau them sai sai rau tom qab lubSulfur Dub 240%dyeing yog siv rau dyeing. Qee yam yuav ua rau muaj kev pheej hmoo ntawm fiber ntau brittleness, xws li kev siv ntau dhau ntawm cov dyes, uas tsis yog tsuas yog ua rau kom muaj nkig, tab sis kuj txo cov xim ceev thiab ua rau kev ntxhua khaub ncaws nyuaj. Tsis tas li ntawd, tom qab dyeing, nws yuav tsum tau ntxuav tag nrho kom tsis txhob ntxuav tsis huv, thiab cov xim ntab ntawm cov xov paj yog yooj yim rau decompose rau hauv sulfuric acid thaum lub sij hawm cia, uas ua rau cov fiber ntau nkig.
Txhawm rau txo lossis tiv thaiv kev sib tw fiber ntau, cov kev ntsuas hauv qab no tuaj yeem ua:
1. Txwv tsis pub ntau npaum li cas ntawm sulfur dub dye: qhov ntau npaum ntawm mercerizing tshwj xeeb thawj xim xim yuav tsum tsis pub tshaj 700 G / pob.
2. Tom qab dyeing, ntxuav kom huv si nrog dej los tiv thaiv cov xim ntab los ntawm decomposing rau hauv sulfur acid thaum lub sij hawm cia.
3. Siv cov tshuaj tiv thaiv kev sib tw, xws li urea, soda tshauv, sodium acetate, thiab lwm yam.
4. Lub degree ntawm kev sib tw ntawm dej scoured yarn yog tsawg tshaj li ntawm alkali scoured yarn.
5. Qhuav cov dyed yarn nyob rau hauv lub sij hawm kom tsis txhob cua sov ntawm cov xov paj ntub nyob rau hauv cov txheej txheem stacking, uas ua rau kom txo tau ntawm anti-brittleness tus neeg saib xyuas cov ntsiab lus thiab pH nqi.
Lub sij hawm xa tuaj: Mar-29-2024