Pigment migration nyob rau hauv textile printing tshwm sim thaum unfixed pigment hais tsiv los ntawm lub polymer binder vim tshav kub, ya raws, los yog siab. Cov kev daws teeb meem tseem ceeb yog mus tas li "xauv" cov xim rau ntawm qhov chaw fiber ntau los ntawm lub network muaj zog polymer.
Cov tswv yim tseem ceeb muaj xws li:
1.Xaiv txoj cai Binder thiab ua kom tiav kev kho:
Lub binder yog qhov tseem ceeb. Xaiv rau tus kheej -crosslinking binders nrog lub siab crosslinking ceev. Cov no tsim ib qhov ntom ntom, peb - qhov sib txuas uas ua rau cov xim xim zoo nkauj.
Xyuas kom tiav curing. Kev kho tsis zoo yog qhov ua rau muaj kev tsiv teb tsaws chaw. Ua raws li qhov ntsuas kub tau pom zoo- kho tej yam kev mob (piv txwv li, 150-160℃rau 2-3 feeb). Cov txheej txheem no yog ib qho tseem ceeb rau cov binder los ua ib daim ntawv ua tiav, ruaj khov.
2.Optimizing Print Paste thiab Txheej Txheem:
Tswj Thickener siv. Cov thickener ntau dhau tuaj yeem cuam tshuam nrog cov ntawv sib txuas sib txuas thiab tawm cov seem hydrophilic uas ua raws li txoj hauv kev rau kev tsiv teb tsaws. Txo kev siv thiab xaiv cov thickeners sib xws nrog cov txheej txheem binder.
Zam kev tsiv teb tsaws chaw -Ntau ntxiv. Qee cov softeners thiab emulsifiers tuaj yeem ua cov khoom siv rau cov xim. Lawv siv yuav tsum tau txo qis los yog ua tib zoo xaiv.
Tom ntej no ncej-Print Washing. Cov kauj ruam no tshem tawm cov ntaub ntawv uas tsis muaj kev cuam tshuam, cov thickener ntau dhau, thiab cov khoom ntxiv dawb, tshem tawm cov peev txheej ntawm kev tsiv teb tsaws chaw.
3.Kev Ua Haujlwm Fiber-Cov Tswv Yim Tshwj Xeeb:
Rau hydrophobic fibers zoo li polyester, uas yog nquag tsiv teb tsaws:
Siv tus Crosslinker. Qhov no txhim kho kev sib raug zoo ntawm cov binder thiab fiber ntau.
Siv Fiber Pre- kho. Cov txuj ci zoo li kev kho ntshav ntshav tuaj yeem ua rau cov fiber ntau qhov polarity, txhim kho cov nplaum nplaum.
Hauv cov ntsiab lus, kev ua tiav kev tsiv teb tsaws chaw ceev ceev yuav tsum muaj txoj hauv kev zoo. Lub hauv paus pob zeb yog siv lub siab - kev ua tau zoo binder thiab ua kom nws txoj kev kho kom tiav, txhawb nqa los ntawm kev ua kom zoo tshaj plaws luam tawm daim ntawv qhia thiab tswj cov txheej txheem nruj.
