Abstract: A nonstick utensil and its method of manufacturing are presented. The nonstick utensil includes a utensil substrate and a nonstick layer covering an inner surface of the utensil substrate. The material of the nonstick layer includes black titanium dioxide. An inner surface of a substrate of the nonstick utensil is covered with a material having black titanium dioxide applied by hot spraying, cold spraying or plasma spraying, so that a black titanium dioxide nonstick layer is formed. Compared to the prior art, instead of using a coating material, a nonstick layer having black titanium dioxide on a surface of a substrate is provided, having nonstick properties due to the low surface energy characteristic of black titanium dioxide.

Abstract: The present invention relates to the technical field of cooking utensils, and in particular, to a nonstick utensil and its method of manufacturing. The nonstick utensil comprises a utensil substrate and a nonstick layer covering an inner surface of the utensil substrate; the material of the nonstick layer comprises black titanium dioxide. In these method of the present invention, an inner surface of a substrate of the nonstick utensil is covered with a material comprising black titanium dioxide by means of hot spraying, cold spraying or plasma spraying, so that a black titanium dioxide nonstick layer is formed. Compared to the prior art, instead of using a coating material, the present invention achieves the objective of nonstickness by forming nonstick layer comprising black titanium dioxide on a surface of a substrate, thanks to the low surface energy characteristic of black titanium dioxide.