Waxaa jira noocyo badan oo midabyo ah, alaab-qeybiyaha reactive reactive wuxuu marka hore ka hadlaa midabaynta fal-celiska ah, midabada fal-celiska ah waa dheeh caadi ah oo caadi ahaan la isticmaalo.
Qeexida midabada falcelinta
Midabaynta falcelinta: Midabaynta falcelinta, sidoo kale loo yaqaan dheeha falcelinta, waa nooc ka mid ah dheeha ka falcelisa fiilooyinka inta lagu jiro midabaynta.Noocan molecule-ka dheeha ah waxa uu ka kooban yahay koox si kiimiko ah uga fal-celin kara fiber-ka.Inta lagu jiro midabaynta, dheehu wuxuu la falgalaa faybarka, isaga oo samaynaaya xidhidh isku xidhan oo u dhexeeya labadooda iyo samaynta gebi ahaanba, taas oo wanaajisa xajinta dhaqidda iyo xoqidda.
Midabaynta falcelinta waxay ka kooban tahay midabaynta waalidka, kooxaha isku xidha iyo kooxaha falcelinta.Horudhaca dheeha ayaa leh azo, anthraquinone, qaab dhismeedka phthalocyanine, iwm. Kooxaha falcelinta ugu badan waa chlorinated junsanzhen (nooca X iyo nooca K), vinyl sulfone sulfate (KN-nooca) iyo kooxda double-reactive (M-nooca).Unugyada dheeha firfircooni waxay ka kooban yihiin kooxo kiimikaad leh, kuwaas oo ka falcelin kara suufka, dhogorta iyo fiilooyinka kale ee dareeraha aqueous si ay u sameeyaan dammaanad caadi ah, si ay dharka midabaysan ee dhammaatay u yeesho dhaq-dhaqaaq sare.
Midabaynta fal-celintu waxay ku milmi karaan biyaha waxayna si ba'an ugu xidhi karaan fiilooyinka cellulose.Waxay leedahay midab dhalaalaya, wax qabad heer sare ah, waxay dabooli kartaa cilladaha dharka qaarkood, waxayna leedahay saabuun wanaagsan.Si kastaba ha ahaatee, midabada falceliska badankoodu aad bay ugu adkeysanayaan chlorine bleaching waxayna u nugul yihiin asiidhka iyo alkaliska.U fiirso xawaaraha cimilada markaad midabaynayso midabada iftiinka.Midabaynta falcelinta waxay midabayn kartaa suufka, viscose, xariirta, dhogorta, naylon iyo fiilooyinka kale.
Midabaynta falcelinta
Kala soocida midabada falcelinta
Sida laga soo xigtay kooxaha firfircoon ee kala duwan, midabada falcelinta waxaa loo qaybin karaa laba qaybood: nooca triazene symmetrical iyo nooca vinyl sulfone.
Nooca triazene Symmetric: Noocan dheeha fal-celiska ah, dabeecadda kiimikaad ee atamka koloriinta fal-celisa ayaa aad u firfircoon.Inta lagu jiro midabaynta, atamka koloriinta waxaa lagu beddelaa fiilooyinka cellulose ee dhexdhexaad ah alkaline waxayna noqdaan kooxo ka tagaya.Falcelinta u dhaxaysa dheeha iyo fiber cellulose waa falcelinta beddelka nucleophilic bimolecular.
Nooca Vinyl sulfone: Kooxda falceliska ah ee ku jirta noocaan dheeha falcelinta ah waa vinyl sulfone (D-SO2CH = CH2) ama β-hydroxyethyl sulfone sulfate.Inta lagu jiro midabaynta, β-hydroxyethyl sulfone sulfate waxaa lagu baabi'iyaa dhexdhexaadka alkaline si loo sameeyo kooxda vinyl sulfone, ka dibna lagu daro fiber cellulose oo la maro falcelinta dheeriga ah ee nucleophilic si loo sameeyo dammaanad wadajir ah.
Labada nooc ee kor ku xusan ee dheeha fal-celiska ah ayaa ah dheeha falcelinta ugu weyn ee leh wax soo saarka ugu weyn adduunka.Si loo hagaajiyo heerka hagaajinta midabaynta falcelinta, laba kooxood oo falcelis ah ayaa la soo geliyay unugyo dheeha sannadihii u dambeeyay, oo loo yaqaan dheeha falcelinta laba-jibbaaran.
Midabaynta falcelinta waxaa loo qaybin karaa dhawr taxane iyadoo loo eegayo kooxahooda falcelis ee kala duwan:
1. Midabada falcelinta ee nooca X waxa ku jira kooxaha firfircoon ee dichloro-s-triazine, kuwaas oo ah midabyo fal-celin heerkul hooseeya, oo ku habboon in lagu midabeeyo fiilooyinka cellulose at 40-50 ℃
2. Midabada falcelinta ee nooca K waxa ku jira koox falcelisa monochlorotriazine, taas oo ah midabyo falcelin heerkulkiisu sarreeyo, oo ku habboon daabacaadda iyo rinjiyeynta suufka.
3. Midabka falcelinta nooca KN waxa ku jira hydroxyethyl sulfone sulfate reactive group, kaas oo iska leh midabka falcelinta heerkulka dhexdhexaadka ah.Heerkulka dheeha 40-60 ℃, ku habboon dheehidda duub duubka suufka, dheehaynta qabowga, iyo daabacaadda dheeha midabka asalka;sidoo kale ku haboon dheeha dharka hemp.
4. Midabka fal-celinta ee nooca-M waxa ay ka kooban yihiin laba kooxood oo fal-celin ah waxayna ka tirsan yihiin midabaynta fal-celinta heerkulka dhexdhexaadka ah.Heerkulka midabaynta waa 60 ℃.Waxay ku habboon tahay suufka iyo linenka midabaynta heerkulka dhexdhexaadka ah iyo daabacaadda.
5. Midabka falcelinta ee nooca KE waxa ku jira laba kooxood oo falcelis ah waxayna ka tirsan yihiin nooca heerkulka sare midabaynta falcelinta, oo ku habboon midabaynta suufka iyo dharka linenka.Xoojinta midabka
Waqtiga boostada: Mar-24-2020