Heavy metal free glass enamels for toughening and heat strengthening. Borosilicate frit with added metaloxide pigments. All standard colors are intermixable.
This paper introduced substitutes for lead,leadless frits and leadless glaze formulation design and making techniques,and then expatiated on firing of leadless glazes,plumbeous recontamination,etc.
The component and property of phosphide-zircon opacifying frits used in sanitaryware porcelain were studied.The main points of its process were introduced and its opacifying mechanism was discussed.