METHOD FOR RENEWING CHEMICAL SOLUTION USED FOR DEVICE FOR ETCHING LIQUID CRYSTAL GLASS, NOZZLE FOR CHEMICAL SOLUTION RENEWAL, AND CHEMICAL SOLUTION FOR RENEWAL

摘要

To promote the renewing of a chemical solution used for a device for etching liquid crystal glass, in order to maintain an optimum environment when etching liquid crystal glass, and thereby make it possible to obtain a high-quality liquid crystal glass component. A method for renewing a chemical solution used for a device for etching liquid crystal glass, wherein a chemical solution discharge nozzle and a suction nozzle are disposed in an etching solution tank for containing the chemical solution, the chemical solution is discharged and suctioned in a state in which the nozzles are immersed in the chemical solution, the discharging and the suctioning using the above nozzles are performed simultaneously, and a uniform stress is applied to the chemical solution, whereby the renewing of the chemical solution is promoted.