Seb S.a.

Centre National De La Recherche Scientifique

Universite Dé Lorraine

Stephane Tuffe

Martin Rubio

Jean-Francois Pierson

Simon Allemand

Mickaël Meyer

Alain Coudurier

Aurélien Berrux

Philippe Pigeat

Frederic Tessier

Alexandre Mege-Revil

Mickael Meyer

Provided is a food cooking surface for a cookware item or an electrical household cooking appliance, consisting of a deposit of nitride of metal elements on a substrate, the metal elements of the deposit comprising one or more X transition metal(s) and aluminium. The production of the deposit comprises a nitridation step in arder to obtain a coating of type (X,Al)N. According to the invention, the (X,Al)N-type coating is a coating of nitride(s) of the one or more X transition metal(s), enriched with aluminium, in which niobium and/or zirconium is/are make up the most part of the X transition metal(s), the atomic ratio of aluminium in the metal elements of the deposit being at least equal to 20%. Also provided are cookware items and electrical household appliances intended for the cooking of food, comprising the above-mentioned type of cooking surface.

Stain-resistant cooking surface and cookware item or electrical household appliance comprising such a cooking surface

Provided is a method for obtaining an item of cookware, including the following steps of: &#x2014;producing or providing a blank from a textured sheet of stainless steel having at least one textured face, &#x2014;stamping the blank in order to form a cap () having an inner face () and an outer face (), the outer face () having parts in relief corresponding to the textured face of the blank, &#x2014;optionally, partially covering the outer face () of the cap (), &#x2014;carrying out a mechanical finishing treatment of the free surface of the outer face () of the cap () in order to expose the stainless steel at the parts in relief of the free surface of the outer face () of the cap (). Also provided is an item of cookware including a stamped cap () made of stainless steel having an inner face () and an outer face (), wherein the outer face () of the cap () has a textured free surface ().

Item of cookware having a textured outer face made of textured stainless steel

Provided is a method for obtaining a cooking vessel having the following steps: producing a bowl having an outer face made of aluminum and an inner face, carrying out hard anodization of at least the outer face of the bowl. According to the method, at least one coloring step is carried out on the anodized outer face after hard anodization, said coloring step employing at least one water-soluble inorganic pigment. Also provided is a culinary article or an electric cooking appliance comprising a cooking vessel obtained by the above method.

Method for obtaining a cooking vessel having a colored hard anodized outer face

Provided is a method for obtaining a cooking vessel that includes the following steps: producing a bowl having an aluminum outer surface and an inner surface; performing hard anodization of at least the outer surface of the bowl; and providing a sol-gel coating on the anodized outer surface. At least one coloring step is carried out following the hard anodization, the coloring step(s) being carried out before and/or during the sol-gel coating step. Also provided is a kitchen item or an electrical cooking appliance that includes a cooking vessel obtained by the above method.

Method for obtaining a cooking vessel having a colored, hard, anodized outer surface

The present invention relates to a cooking device including a metal holder supporting a ceramic cooking surface, the holder having a hardness no lower than 150 HV. The holder forms a substrate supporting a surface layer made of a transition metal boride or boronitride forming the cooking surface. The present invention further relates to a culinary article including a cooking device of the type above-mentioned, a household cooking appliance including a cooking device of the type above-mentioned, as well as a method for producing a cooking device of the type above-mentioned.

Cooking device comprising a cooking surface that is easy to clean and resistant to scratching

Provided is a method for obtaining a cooking vessel comprising the following steps: producing a container having an aluminum outer face and an inner face, carrying out hard anodization of at least the outer face of the container. At least one coloring step is carried out on the anodized outer face following hard anodization, said coloring step employing at least one water-soluble anthraquinone organic dye. Also provided is a culinary article or an electric cooking appliance comprising a cooking vessel obtained by the above method.

Method for obtaining a cooking vessel having a colored hard-anodized outer face

Provided is a food-cooking surface for a culinary article or domestic electrical cooking appliance, consisting in depositing Zr and/or Nb and/or Ti on a substrate, the production process including a step of carburizing and/or nitriding at least one of the aforementioned elements, characterized in that the cooking surface also includes depositing Si so as to produce (Zr/Nb/Ti)&#x2014;Si&#x2014;(N/C) coatings. Also provided is a culinary article or domestic electrical or gas cooking appliance comprising such a cooking surface.

Growing community of inventors

Cognin, France

Stephane Tuffe