Method for making float glass having reduced defect density

摘要

A method for reducing the defect density of glass comprising melting a glass composition comprising from 65-75 wt. % of SiO₂; from 10-20 wt. % of Na₂O; from 5-15 wt. % of CaO; from 0-5 wt. % of MgO; from 0-5 wt. % of Al₂O₃; from 0-5 wt. % of K₂O; from 0-2 wt. % Fe₂O₃; and from 0-2 % FeO, wherein the glass composition has a total field strength index of greater than or equal to 1.23 is disclosed.