Iphepha lokukopa elingenakhabhoni lahlulwe libe liphepha eliphezulu, eliphakathi kunye nephepha elisezantsi. Iphepha lokukopa elingenakhabhoni lisetyenziswa kakhulu ukwenzela ukuba libelula, libelula, kunye nococeko. Inkangeleko, isiphumo sonikezelo lombala, ukusebenza kwe-inki, kunye namandla omphezulu wephepha lokukopa elingenakhabhoni zonke ziya kuchaphazela isiphumo sokusetyenziswa kwephepha lekopi elingenacarbon. Ukongeza kumhlophe wokuqala kunye nomhlophe ophezulu, ukubonakala kwephepha lephepha le-carbonless linemibala efana nephuzi, eluhlaza okwesibhakabhaka, ebomvu kunye eluhlaza. Nangona inkangeleko yephepha elinemibala ye-carbonless copy lihle, kulula ukubangela iingxaki ezisemgangathweni, njengamabala amhlophe ephepheni.
Ingxaki yomgangatho webala elimhlophe lephepha lokukhuphela elingenakhabhoni lenzeka ikakhulu kwicala le-CF ephepheni. Kukho izinto ezininzi ezibangela amabala amhlophe kwicala leCF. Ngokuqhelekileyo, kukho le miba ilandelayo:
Umgangatho ophantsi we-dispersant uya kukhokelela kwisiphumo esibi sokusasazeka kwe-pigment kwipeyinti; xa inani le-dispersant lincinci, i-pigment particles engagqithwanga yi-dispersant iya kujikeleza kwaye iqhube ngenxa yokutsala kombane; xa isixa se-dispersant sikhulu kakhulu, i-dispersant egqithisileyo iya Kutshabalalisa umaleko ophindwe kabini wombane owenziwe yi-pigment, ebangela ukusasazwa okungalinganiyo kweentlawulo kwaye kubangele imvula. Xa i-coating isetyenziswe kumatshini, iinqununu ze-pigment ezidibeneyo azikwazi ukugquma kwaye zibangele amabala amhlophe kwiphepha. Elona nani lifanelekileyo le-dispersant linokumiselwa ngohlalutyo lovavanyo, kwaye ngokuqhelekileyo inani le-dispersant elongeziweyo limalunga ne-0.5% -2.5% ye-pigment.
Ixabiso le-pH linempembelelo eqinisekileyo kwi-dispersion (uzinzo) yeiphepha elingenakhabhoni ibala. Xa i-pigment isasazwa, i-alkali inokongezwa ukulungisa i-pH ukuba ibe yi-alkaline, ngokukodwa phakathi kwe-7.5 kunye ne-8.5.
I-Defoamers isusa amaqamza omoya kwipeyinti. Nangona kunjalo, i-defoamer ngokuqhelekileyo yinto ephilayo enzima ukuyinyibilika emanzini. Ukusetyenziswa ngokugqithiseleyo okanye indlela yokongeza engafanelekanga iya kubangela ukuba i-defoamer yenze "i-cloud point" kwiphepha, eliya kubangela ukuba i-CF ifake isicelo kwaye ifake amabala amhlophe. Le ngxaki ingasombululwa ngokuhlanjululwa ngokufanelekileyo kunye nokutshiza kumphezulu wepeyinti ngamaqamza omoya.
Iingubo ze-CF zinamaqamza omoya amaninzi, kwaye xa i-coating isetyenziswa, amaqamza agqabhuka kwiphepha, abangela amabala amhlophe. Esi sesona sizathu siphambili sokuba kutheniiphepha lokukopa elingenakhabhoni kubangela isifo sephepha elimhlophe. Isisombululo kukongeza i-inhibitor ye-foam ukukhusela ukuveliswa kweebhubhu xa i-pigment ihlakazwa, okanye ukongeza i-defoamer ukuphelisa iibhubhu esele zenzekile.
Ezinye izinto ezincedisayo (ingakumbi izinto ezincedisayo ze-organic) zongezwa kwiingubo ze-CF, ukuba umgangatho we-lubricant awulungile, kuya kubangela ukusasazwa kakubi kwaye unamathele ephepheni, okubangela ukusilela kweengubo ze-CF ukwenza amabala amhlophe. Ngoko ke sebenzisa izixhobo eziluncedo zeekhemikhali ezisemgangathweni kangangoko.
Ixesha lokuposa: Dec-05-2022