초록 ▼

A process for forming a thin blue colored gold deposit, which transmits substantially more visible light than infrared energy. A suitable substrate, usually transparent, is selected and aggressively cleaned to such an extent that water will sheet rather than bead on the surface. The surface is sensi

A process for forming a thin blue colored gold deposit, which transmits substantially more visible light than infrared energy. A suitable substrate, usually transparent, is selected and aggressively cleaned to such an extent that water will sheet rather than bead on the surface. The surface is sensitized with a solid phase sensitizing agent such as tin chloride. The surface is either rubbed with a slurry of the solid phase sensitizing agent or it is or it is dipped into an agitated slurry of the agent. Two very dilute reagent solutions are prepared; a reducing solution, and a gold ion containing solution. The reagent solutions are co-mingled and simultaneously projected onto the cleaned surface. The reagent solutions react to form a blue colored gold deposit on the surface. This blue colored deposit passes more visible than infrared energy by a factor of approximately two.

대표청구항 ▼

[ What is claimed is:] [1.] Process of applying a blue coating of gold on a surface of a substrate comprising:selecting a substrate having a clean surface, said surface being cleaned sufficiently to permit the adhesion of said blue coating of gold to said surface;applying a solid phase sensitizing m

[ What is claimed is:] [1.] Process of applying a blue coating of gold on a surface of a substrate comprising:selecting a substrate having a clean surface, said surface being cleaned sufficiently to permit the adhesion of said blue coating of gold to said surface;applying a solid phase sensitizing material to said clean surface;forming a liquid mixture of a reducing reagent and a gold ion containing reagent and substantially simultaneously with said forming, applying said liquid mixture to said clean surface; andallowing said liquid mixture to react on said clean surface and form a substantially transparent blue colored gold deposit on said clean surface.