US2085875A - Decorative coating and process of making same - Google Patents

Description

Jul 6,1937. 1 G, SIROVY -2,085,875

DECORATIVE COATING AND PROCESS OF MAKING SAME- Original Filed July 10, 1933 Geo/ye 6m;

Patented July 6, 1937 UNITED STATES PATENT OFFICE" DECORATIVE COATING AND PROCESS OF MAKING SAME George Sirovy, Cicero,

Ill., assignor to Century Vitreous Enamel Company, Chicago, 111., a corporation of Illinois 1 Claim.

This invention relates to decorative coatings and, while it will hereinafter be described as embodied in a vitreous enamel coating for sheet metal, it will be apparent that the invention has other and more general application and use.

This application is a substitute for my application Serial No. 679,721 filed July 10, 1933.

The principal object of the invention is the provision of a decorative coating and a process of producing it of novel and pleasing appearance, particularly in that a relief is provided and greatly accentuated as to depth to the combination of contrasting colors.

Another important object of the invention is the provision of a vitreous enamel coating, particularly adapted to application on metal, wherein greater depth of color effect is produced than has heretofore been accomplished.

Still another important object of the invention 20 is the attainment of the foregoing in a coating of hard surface and lasting and durable quality.

In the drawing, Fig. 1 is a plan view of a portion of a surface having a coating applied thereto embodying my invention; and

Fig. 2 is an enlarged vertical section through Fig. 1 with a diagrammatic showing of a spray device for applying the dry pigment of contrasting color to the worked-up surface.

The coating of the present invention is primarily accomplished by the working up of a base color coat upon a suitable foundation and into ridges and irregularities to provide a color surface in relief, and thereafter spraying or other- 35 wise applying upon the base color surface a contrasting color so that the contrasting color is confined almost, if not entirely, to a side of the relief parts. This combination of base and contrasting color accentuates materially the relief 40 effect and increases materially the apparent depth of the surface coating.

The preferred process of producing and applying the coating, particularly to sheet metal, is

to first spray or dip the sheet metal H in a usual i. e., to all of its parts, to prevent rust. This coat is preferably burned or baked in a furnace. v Thereafter, a like coat l3 of enamel of a desired base color, as for example green, is sprayed upon the side upon which it is desired to have the decorative coating. When this is about dry, it is worked or mottled with a sponge, rag, piece of paper, brush, or by the hand into irregular relief. In this form a dry pigment of contrasting color, as for example white, is sprayed un- 10 evenly against the plate at an angle, by means of a spray device l4, so that this dry color is largely confined to one side of the relief provided in the working of the base color coat l3. The whole is now allowed to dry and is baked or 1 burned in a furnace.

The resulting coating is one of marked high lights and depths of color and the relief produced in the mottling is accentuated and its effect greatly magnified by the contrasted color effeet produced. The final baking gives a hard, lasting and impervious surface.

It is thought that the invention and many of its attendant advantages will be understood from the foregoing description and it will be apparent that various changes may be made in the steps and their order of accomplishment of the process described without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the process hereinbefore described being merely a preferred embodiment thereof.

I claim:

The process of providing a decorating coating, which comprises applying a foundation coating, baking the same, then applying a liquid coating of base color, then allowing said coating to partially dry so as to form an outer skin overlying a fluid layer of said base color, working said skin while the same is floating on said fluid layer to cause it to wrinkle into a relief formation, thereafter spraying said relief formation from an angle with a contrasting color to effect an uneven application of said contrasting color on said base color, and finally baking said base and contrasting colorsoto provide a hard protective and decorative coating.

GEORGE SIROVY.

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