Patent ID: 11935970
Assignee: BK ENERGY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 1:
2. A method of coating a photovoltaic panel, comprising:
a water-washing step of washing a surface of a photovoltaic panel by spraying water thereon;
a cleaning liquid application step of applying a cleaning liquid on the surface of the photovoltaic panel after the water-washing step;
a rinsing step of removing contaminants and the cleaning liquid on the surface of the photovoltaic panel by spraying washing water after the cleaning liquid application step; and a coating liquid application step of applying a coating liquid on the surface of the photovoltaic panel after the rinsing step and thus forming an anti-stain coating film:
wherein the rinsing step includes:
a) a first spraying step of spraying any one type of washing water selected from among alkaline water, neutral water, and acidic water on the surface of the photovoltaic panel; and
b) a second spraying step of spraying purified water on the surface of the photovoltaic panel after the first spraying step.