Tableware, utensil and a preparation method thereof are provided, the tableware includes a bowl body. The bowl body includes a side wall portion, the side wall portion is connected to a bowl bottom through an arc-shaped portion. A bottom of the bowl bottom is provided with a bowl seat; the side wall portion, arc-shaped portion, and bowl bottom form a first chamber with an upward opening, the bowl seat is in a circular shape to form a second chamber with a downward opening; a dipping layer, which is provided at a bottom of the bowl body and covers the bowl bottom and bowl seat. By performing a dipping treatment on the bowel bottom and bowel seat of the bowl body, a plastic dipping layer is applied to surfaces of the bowl bottom and bowel seat. The dipping layer has characteristics of low thermal conductivity and high friction coefficient.

A process for coating a profile or panel is provided. The process comprises the following steps: a) removal of dust from the profile or panel; b) heating the profile or panel to a temperature between 30 and 70 degrees Celsius using infrared halogen lamps or similar, controlled by an automatic control system; c) exposing the profile or panel to jets of ionized air by means of electric discharges with an emission frequency between 18 Hz and 25 Hz; d) coating the profile or panel with a film of polyvinyl chloride (PVC), paper, or other desired material, previously treated with a low-isocyanate emission adhesive; e) heating the profile or panel to a temperature between 45 and 65 degrees Celsius for a time depending on the mass of material in the profile or panel. The invention also relates to a coated product obtained through the aforementioned process.

Methods for producing eye-catching overt security features exhibiting one or more indicia for anti-counterfeit purposes on value documents or articles as well as decorative purposes are disclosed. In particular, the present invention provides methods for producing security features that can be easily, directly and unambiguously authenticated by the human without any external device or tool, wherein the security features comprised a cured ink and one or more cured indicia, the ink comprising cured cationically curable compounds or cured hybrid curable compounds and silver nanoplatelets.