PREPARATIONS OF WHITE INK FOR MARKER PEN

摘要

The invention provides a white ink for marker pen which can be used for a green ceramic board. A process for producing the white ink comprises the steps of; mixing and pulverizing 9-12% by weight of titanium oxide and 1-1.5% of calcium carbonate; heating the powder indirectly at 95-110 C for 20-30 min. to produce mucoid formulated concentrate; adding and mixing 8-11% by weight of IOS, 2.8-3.2% of polyoxyethylene lauryl ether (LA3), 0.8-1.2% of polyoxyethylene olein setyl ether (EA3) and 10-12% of acetone, then 7-8.5% of DOA.