Pali mitundu yambiri ya utoto, Reactive dyeing supplier amalankhula koyamba za utoto wokhazikika, utoto wokhazikika ndi wofala kwambiri komanso wogwiritsidwa ntchito kwambiri.
Tanthauzo la utoto wokhazikika
Udaya wokhazikika: Reactive dyeing, womwe umadziwikanso kuti reactive dye, ndi mtundu wa utoto womwe umakhudzidwa ndi ulusi pakupaka utoto.Mtundu uwu wa molekyulu wa utoto uli ndi gulu lomwe lingagwirizane ndi ulusiwo.Pakucha, utotowo umayambana ndi ulusiwo, umapanga mgwirizano wogwirizana pakati pa ziwirizo ndikupanga chinthu chonsecho, chomwe chimathandiza kufulumira kuchapa ndi kusisita.
Utoto wokhazikika umapangidwa ndi utoto wa makolo, magulu olumikizirana ndi magulu othandizira.Kalambulabwalo wa utoto ali ndi azo, anthraquinone, phthalocyanine kapangidwe, etc. Magulu omwe amagwiritsidwa ntchito kwambiri ndi chlorinated junsanzhen (X-mtundu ndi K-mtundu), vinyl sulfone sulfate (KN-mtundu) ndi gulu lachiwiri-reactive (M-mtundu).Mamolekyu opangira utoto amakhala ndi magulu omwe amagwira ntchito ndi mankhwala, omwe amatha kuchitapo kanthu ndi thonje, ubweya ndi ulusi wina munjira yamadzi kuti apange mgwirizano wamba, kotero kuti nsalu yomalizidwa yopaka utoto imakhala yothamanga kwambiri.
Utoto wokhazikika umasungunuka m'madzi ndipo umatha kulumikizana bwino ndi ulusi wa cellulose.Ili ndi mtundu wowala, magwiridwe antchito abwino, imatha kuphimba zolakwika zina za nsalu, ndipo ili ndi kufulumira kwa sopo.Komabe, utoto wambiri womwe umagwira ntchito sulimbana bwino ndi kuyera kwa chlorine ndipo umamva bwino ndi ma acid ndi alkalis.Samalani ndi kufulumira kwa nyengo popaka utoto wowala.Utoto wokhazikika ukhoza kuyika thonje, viscose, silika, ubweya, nayiloni ndi ulusi wina.
Kudaya Mwachangu
Gulu la utoto wokhazikika
Malinga ndi magulu osiyanasiyana omwe amagwira ntchito, utoto wokhazikika ukhoza kugawidwa m'magulu awiri: mtundu wa symmetric triazene ndi mtundu wa vinyl sulfone.
Mtundu wa symmetric triazene: Mu mtundu uwu wa utoto wokhazikika, mawonekedwe amtundu wa atomu ya klorini yogwira ntchito kwambiri.Pakupaka utoto, maatomu a klorini amasinthidwa ndi ulusi wa cellulose mu sing'anga ya alkaline ndipo amasiya magulu.Zomwe zimachitika pakati pa utoto ndi ulusi wa cellulose ndi bimolecular nucleophilic substitution reaction.
Mtundu wa vinyl sulfone: Gulu lokhazikika lomwe lili mu mtundu uwu wa utoto wokhazikika ndi vinyl sulfone (D-SO2CH = CH2) kapena β-hydroxyethyl sulfone sulfone.Panthawi yopaka utoto, β-hydroxyethyl sulfone sulphate imachotsedwa mu alkaline sing'anga kupanga gulu la vinyl sulfone, lomwe limaphatikizidwa ndi ulusi wa cellulose ndipo limakumana ndi ma nucleophilic owonjezera kupanga kupanga covalent chomangira.
Mitundu iwiri yomwe ili pamwambayi ya utoto wotsitsimula ndiyo mitundu ikuluikulu yokhazikika yomwe imakhala ndi mphamvu zambiri padziko lonse lapansi.Pofuna kuwongolera kuchuluka kwa utoto wa reactive, magulu awiri a reactive dyes akhazikitsidwa m'zaka zaposachedwa, zotchedwa ma dual reactive dyes.
Utoto wokhazikika ukhoza kugawidwa m'magulu angapo malinga ndi magulu awo osinthika:
1. Mitundu ya X-reactive dyes imakhala ndi magulu a dichloro-s-triazine, omwe ndi utoto wotenthetsera wocheperako, woyenera kudaya ulusi wa cellulose pa 40-50 ℃.
2. Mitundu ya K-mtundu wamtundu wa K imakhala ndi gulu lothandizira la monochlorotriazine, lomwe ndi utoto wotentha kwambiri, woyenerera kusindikiza ndi utoto wa pad wa nsalu za thonje.
3. KN mtundu zotakasika utoto muli hydroxyethyl sulfone sulfate zotakataka gulu, amene ali sing'anga kutentha mtundu zotakataka utoto.Dyeing kutentha 40-60 ℃, oyenera utoto thonje mpukutu utoto, ozizira stacking utoto, ndi odana ndi utoto kusindikiza utoto maziko;ndizoyeneranso kuzonda nsalu za hemp.
4. Utoto wamtundu wa M uli ndi magulu awiri osunthika ndipo ndi wamitundu yotentha yapakatikati.Kutentha kwa utoto ndi 60 ℃.Ndi yoyenera thonje ndi nsalu sing'anga kutentha utoto ndi kusindikiza.
5. Mitundu ya KE yamtundu wa reactive dyes imakhala ndi magulu awiri ogwira ntchito ndipo imakhala yamitundu yotentha kwambiri, yoyenera kudaya thonje ndi nsalu za bafuta.Kuthamanga kwamtundu
Nthawi yotumiza: Mar-24-2020