Ukwelashwa okungaphezulu kwezingulube ze-inorganic

Ngemva kokwelashwa okungaphezulu kombala we-inorganic, ukusebenza kwe-pigments kungathuthukiswa ngokwengeziwe, futhi imiphumela ikhombisa ngokugcwele izici zayo zokubona, okungesinye sezinyathelo eziyinhloko zokuthuthukisa izinga lemibala yemibala.

Indima yokwelapha okungaphezulu

Umthelela wokwelashwa okungaphezulu ungafingqwa ngezici ezintathu ezilandelayo:

1. ukuthuthukisa izakhiwo ze-pigment ngokwayo, njengamandla ombala namandla okufihla;
2.  thuthukisa ukusebenza, futhi uthuthukise ukuhlakazeka kanye nokuzinza kokuhlakazeka kwe-pigment ku-solvent kanye ne-resin;
3.  thuthukisa ukuqina kwempahla yokugcina ye-pigment, ukuzinza kwamakhemikhali kanye nokusebenza kahle.

Ukwelashwa okungaphezulu kwe-pigment kungenziwa ngejazi le-inorganic bese wengeza ama-organic surface-active agents ukufeza into yawo, isibonelo:

I-Chrome ephuzi ivuvukala kalula kunqubo yokukhiqiza, ukuze ijiye uma i-toner ijwayele “usilika”, ngokwengeza insipho ye-zinc, i-aluminium phosphate, i-aluminium hydroxide ukuze kuncishiswe amakristalu ama-acicular, ukwehla kokuvuvukala; i-lead chrome yellow pigments ingasetshenziswa inhlanganisela ye-antimony noma umhlaba ongavamile noma i-silica surface ephathwayo ukuze kuthuthukiswe ukumelana nokukhanya kwayo, ukumelana nokushisa nokuzinza kwamakhemikhali; indawo ephuzi ye-cadmium inganyuswa ngokusebenzisa i-SiO2, i-Al2O3 yokwelashwa kwendawo, ukuthuthukisa ukumelana nesimo sezulu, ingangezwa futhi i-sodium stearate, i-alkyl sulfonates, njll. isuka ku-hydrophilic iye ku-lipophilic futhi ihlakazwe kalula ku-resin;

I-Cadmium ebomvu nge-Al2O3, i-SiO2 coated surface treatment ingase futhi ithuthukise ukuhlakazeka kwayo kanye nokumelana nesimo sezulu;
I-iron oxide pigment ingase iphathwe nge-stearic acid agent ukuze ithuthukise ukuhlakazeka kwayo endaweni ephilayo, ukwelashwa okungaphezulu kungase kube yi-Al2O3, i-oleophilic surface ukuthuthukisa ukusebenza;

I-iron oxide ekhanyayo ephuzi, ingathuthukisa ukuhlakazeka nokungafihli ngokungeza i-sodium dodecyl naphthalene yokwelapha ebusweni;

Imibala ye-ayoni eluhlaza okwesibhakabhaka impofu ukumelana ne-alkali, ukumelana ne-alkali kungathuthukiswa ngokwelashwa kwayo okungaphezulu kwe-amine enamafutha;
I-Ultramarine ukumelana ne-asidi empofu, i-asidi ingathuthukisa ukusebenza kwayo ngokwelashwa kwendawo ye-SiO2;
I-Lithopone Lithopone ku-zinc sulfide ingancishiswa ngomsebenzi we-photochemical wezakhi zomhlaba ezingavamile ekwelapheni okungaphezulu.