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Kala firdhiso waxa kale oo loo yaqaan wakiilka qoynta iyo kala firdhinta.Dhanka kale, waxay leedahay saameyn qoynta, dhinaca kale, hal dhamaadka kooxdeeda firfircoon ayaa lagu dhajin karaa dusha sare ee pigment-ka oo la jajabiyey qaybo yaryar, iyo dhamaadka kale waxaa lagu milmay walxaha aasaasiga ah si loo sameeyo lakabka adsorption ( kooxo adsorption badan, inta dheer ee isku xirka silsiladda, dhumucdiisuna waa lakabka xayeysiiska) si ay u soo saaraan lacag celin (Rinji ku salaysan biyaha) ama entropy repulsion (Rinjiga ku salaysan), si qaybaha midabada loo kala firdhiyo loona hakiyo rinjiga muddo dheer si looga fogaado qulqulka mar kale.Tani waxay xaqiijinaysaa xasilloonida kaydinta nidaamka rinjiga.
 
Noocyada kala firdhiyey ee sida caadiga ah loo isticmaalo.
1.Anionic qoynta iyo kala firdhinta wakiilka
Intooda badan waxay ka kooban yihiin silsilad aan polar ahayn, silsilad hydrocarbon ah oo si xun loo dallacay iyo kooxda hydrophilic polar.Labada kooxood waxay ku yaalaan labada daraf ee molecule, iyaga oo samaynaya qaab dhismeedka molecular iyo oleophilic asymmetric.Noocyadeeda waa: sodium oleate C17H33COONa, carboxylate, sulfate (RO-SO3Na), sulfonate (R-SO3Na), iwm oo si weyn loogu isticmaalo sida kala firdhinta nooca flocculation-ka la kantaroolo.

2.Wakiilka qoynta iyo kala firdhinta cationic
Waxay yihiin non-polar saldhig togan xeryahooda eedeeyay, inta badan amine cusbada, quaternary amine cusbada, pyridinium cusbada, iwm cationic surfactants waxay leeyihiin awood adsorption xoog leh oo ay saameyn wanaagsan ku kala firdhiso on madow carbon, oxides birta kala duwan iyo pigments organic, laakiin waa in la ogaadaa. in ay si kiimiko ah ula falgalaan kooxda karboksylka ee ku jirta maaddada aasaasiga ah, iyo sidoo kale ogow in aan isku mar la isticmaalin kala-firdhinta anionic.

3.Xakamaynta nooca xagjirka xorta ah ee hyperdispersant
Marka labaad, doorka kala firdhiyey
1.Hagaajinta dhalaalka oo kordhi saamaynta siman.
2.Ka hortag midab sabeynaya iyo ubax.
3.Hagaajinta awooda midabaynta.
4.Yaree viscosity oo kordhi rarka midabka.
5. Yaraynta qulqulka, kordhinta dhisidda iyo isticmaalka.
6.Ka hortag dib u gurashada oo kordhi xasiloonida kaydinta.
7. Kordhi faafinta midabka iyo dherjinta midabka.
8. Kordhi hufnaanta ama daboosha awoodda.
9. Hagaajinta hufnaanta shiida iyo dhimista kharashka wax soo saarka.
10.Ka hor tag degitaanka.