Method for decorating a kitchen item by mechanical treatment

1. A method of decorating a kitchen item comprising a substrate, said method comprising the following steps:

supply of a substrate comprising two opposite surfaces;

application of at least one heat-stable base composition over an area of one of the surfaces of the substrate to form at least on base layer, the heat-stable base composition being a sol-gel composition or an aqueous slurry of enamel frit or an aqueous composition comprising a fluorocarbon resin dispersion;

application of at least one heat-stable decorative composition to the base layer to form at least one decorative layer, the heat-stable decorative layer being a sol-gel composition or an aqueous slurry of enamel frit or an aqueous composition comprising a fluorocarbon resin dispersion;

mechanical treatment of the surface of the decorative layer in order to make a decoration, the mechanical treatment comprising a removal and/or movement of a portion of the heat-stable decorative composition by means of pressure and the movement of a tool or a compressed air jet on the surface of the decorative layer;

drying of the mechanically-treated decorative layer when the heat-stable decorative composition is an aqueous slurry of enamel frit or an aqueous composition comprising a fluorocarbon resin dispersion, and, as applicable, when the heat-stable decorative composition is a sol-gel composition; and

thermal densification treatment of the coated substrate, no thermal densification treatment of the coated substrate being done between the heat-stable base composition application step and the heat-stable decorative composition application step.

2. The method according to claim 1 , in which the heat-stable decorative composition is of the same kind as the heat-stable base composition.

3. The method according to clam 1 , also comprising, prior to the decorative composition application step, the following step:

drying of said base layer, when the base composition is a sol-gel composition or an aqueous composition comprising a fluorocarbon resin dispersion.

4. The method according to claim 1 , in which the removal and/or movement of a portion of the heat-stable decorative composition is done by means of pressure from a tool or of a compressed air jet on the surface of the decorative layer while the substrate is spinning.

5. The method according to claim 1 , the tool being one of the following: a paintbrush, brush, comb, sponge or abrasive pad.

6. The method according to claim 1 , in which the mechanical treatment is performed in such a way as to cause at least a portion of the underlying base layer to appear.

7. The method according to claim 1 , in which the decorative composition and the base composition do not have the same visual rendering.

8. The method according to claim 1 , in which the decorative composition and/or the base composition comprise at least one pigment and/or glitter.

9. The method according to claim 8 , in which the pigments of the heat-stable base and decorative compositions are independently chosen from among organic or inorganic heat-stable pigments.

10. The method according to claim 8 , in which the glitters of the heat-stable base and decorative compositions are independently chosen from among coated aluminum glitter and mica glitter.

11. The method according to claim 1 , also comprising, prior to the thermal densification treatment step:

a step to apply at least one translucent heat-stable finishing composition to said decorative layer, which may be dried, to form a finishing layer; and

a step to dry the finishing layer when the heat-stable finishing composition is an aqueous slurry of enamel frit or an aqueous composition comprising a fluorocarbon resin dispersion, and, as applicable, when the heat-stable finishing composition is a sol-gel composition.

12. The method according to claim 11 , in which the heat-stable finishing composition is of the same kind as the heat-stable decorative composition.