Patent ID: 8919150

Claim:
A method of manufacturing an ion-exchanged glass article, comprising: an ion-exchange step of bringing a glass article with a composition containing Li into contact with a molten salt dissolved solution containing an alkali metal element having an ionic radius larger than an ionic radius of the Li contained in the glass article, thereby ion-exchanging the Li in the glass article with the alkali metal element in the molten salt dissolved solution, wherein at least one kind of additive selected from a group consisting of NaF, KF, K 3 A 1 F 6 , Na 2 CO 3 , NaHCO 3 , K 2 CO 3 , KHCO 3 , Na 2 SO 4 , K 2 SO 4 , KA 1 (SO 4 ) 2 , Na 3 PO 4 , and K 3 PO 4 is added to the molten salt dissolved solution, the ion-exchange step being carried out by adjusting a temperature of the molten salt dissolved solution so that the additive is contained in a solid state in the molten salt dissolved solution, wherein the additive reacts with Li ions eluted from the glass article into the molten salt dissolved solution to form a solid precipitate so that concentration of the Li ions is lowered in the molten salt dissolved solution, and wherein a melting point of the precipitate is higher than the temperature of the molten salt dissolved solution.