Iidayi ezisasazwayo ziqhelekile kwiingxaki ezinjengokudayi ongalinganiyo, ukuhlaziya kwakhona, i-agglomeration kunye nokupheka.Indlela yokuthintela?Umboneleli weDisperse Diyeing uya kukwazisa ngayo.
1. Ukudaya ngokungalinganiyo
Ukufana kokufakwa kwedayi kuhambelana nomlinganiselo phakathi kwesantya sokuhamba kotywala bedayi kunye nokufunxa.Kwinqanaba lokufunxa umbala, isalathiso sokuhamba kolwelo sitshintshwa rhoqo kwimijikelo esi-8.Ukunciphisa umlinganiselo wokuhlamba ukusuka kwi-1:12 ukuya ku-1:6 kunokutshintsha ukufana kwenqanaba lokufuduka, nangona iqondo lokungalingani ekuqaleni kokudaya libonakala ngakumbi.Xa uxutywa kunye nokudaya, akwanele ukukhetha iidayi ezineempawu ezifanayo zokusabalalisa ukuqinisekisa ukudaya kwinqanaba.
Ngeli xesha, umxube wokuxuba udlala indima ebalulekileyo.Ukuba ubungakanani bedayi ezintathu ezisetyenzisiweyo ekufaniseni umbala ziyafana, kulungile ukusebenzisa idayi ezineempawu ezifanayo zokusasaza.Nangona kunjalo, ukuba umlinganiselo weedayi ezimbini zikhulu, ukuhlukana kwedayi yesithathu kufuneka kube ngaphantsi, ngaphandle koko kuya kuphelelwa ngokukhawuleza kunezinye iidayi ezimbini, eziya kubangela lula ukudaya okungalinganiyo.
2. Recrystallization
Ukusasaza Ukudaya kudla ngokuphinda kuqaqambise amasuntswana amakhulu kune-1nm ngenxa yokufudumeza okuphindaphindiweyo kunye nokupholisa.Ukongeza i-dispersants eyongezelelweyo inokunciphisa i-recrystallization.Ngexesha lokudaya, xa ibhafu yokudaya ipholile ukusuka kwi-130 ° C ukuya kwi-90 ° C, ezinye iidayi zihlala zilula ukuphinda zenziwe kwakhona, okukhokelela ekukhuhleni okungahambi kakuhle kwemveliso edayiweyo, kunye nokuvala isihluzo kubushushu obuphezulu kunye noxinzelelo oluphezulu lomatshini wokudaya. .
Amanyathelo othintelo
Gcina i-100 ℃ ixesha elide, idayi ilula ukuba i-agglomerate, lungisa isantya sokufudumeza ukusuka kwi-100 ℃ ukuya kwi-130 ℃;
Ukuba idayi kwibhafu yedayi iphinda ihlaziye emva kokufikelela kwibhalansi yokudaya, i-disperant engaphezulu kufuneka yongezwe;
Ezinye iidayi ezisasazekileyo ezibomvu zilungele ukuphinda zenziwe kwakhona ekupheleni kokudaya, nokuba ukugxininiswa kwazo kuphantsi kakhulu kunomgangatho wokugcwala, ngakumbi xa kudayi imibala emnyama.Ngokukodwa xa udaya ngamanzi anzima, kulula ukukrazula ngee-ion zetsimbi.I-chelate ebangelwayo ine-solubility embi phantsi kweemeko zokudaya kwaye iya kushiya amabala aluhlaza okwesibhakabhaka okanye imivimbo yombala kwilaphu.
Izinto ezibangela ukuguqulwa kwakhona
Abancedisi, ioli ejikelezayo, iintsalela ze-alkaline, njl njl. zongezwa ngexesha lokujikeleza.Ezi ngxaki zinokuphetshwa ngokucoca ngaphambi kokudaya okanye ukongeza i-chelating agents kwindawo yokuhlambela idayi.Emva kokuba ibala lenzeka, inokupheliswa ngokucoca ukunciphisa i-alkaline okanye unyango lwe-asidi.
3. I-Agglomeration kunye nokuGxininisa
Imiba enegalelo
Yenza buthathaka isiphumo sokunyibilika kwe-dispersant, inciphisa ukunyanzeliswa kwe-electrostatic, kwaye inyuse izinga lokungqubuzana kwamasuntswana edayi kwaye iphucule amandla abo e-kinetic.Ngokubanzi, okukhona iphezulu iqondo lokudaya kunye nobushushu, kwaye ixesha elide lokudaya, kokukhona kunokwenzeka ukuba i-agglomeration kunye ne-coke.Ukudaya abancedisi abafana nabathwali kunye nee-agent zokulinganisa banokubeka indawo ye-disperant exutywe kwidayi, ngaloo ndlela inciphisa ukuzinza kwe-dispersion.
Amanyathelo okuphucula uzinzo ngexesha lokudaya
Ukusabalalisa idayi kwi-40 ° C kwaye usebenzise ukusabalalisa okugxininisiweyo;
Olona lawulo lobushushu xa utywala bedayi bufudunyezwa;
Ukusebenzisa i-dispersant ene-colloidal effect ekhuselayo;
Musa ukusebenzisa izongezo ezinendawo yelifu kwiqondo lokushisa eliphezulu;
Hlamba zonke iidayi kunye nemisonto encedisayo kubandakanywa izifanisi zokuthambisa phambi kokudaya;
Ngethuba lokudaya kweqondo lokushisa eliphezulu, akukho mphathiswa kunye ne-agent ye-non-ionic leveling kufuneka yongezwe ngaphambi kokuba ininzi yedayi idayiwe kwilaphu;
Akukho tyuwa, i-acetic acid kuphela yokulungelelanisa ixabiso le-PH;
Umsonto okanye amalaphu adayiweyo kufuneka abunjwe ngokufanelekileyo, kwaye uvavanyo lwaselabhoratri kufuneka lwenziwe ukuqinisekisa ukuzinza kokusasazwa kweedayi ezisasazwayo.
Ixesha lokuposa: Nov-19-2020