| 摘要 |
PURPOSE: To obtain a surface decorating vessel having insulating property, excellent in chemical durability and wear resistance, having a noble metallic color and usable for a microwave oven by fusing and forming a decorative body having a double layer structure consisting of an insulating noble metallic film layer and a frit layer on the surface of a ceramic vessel. CONSTITUTION: A desired decorative display is applied on the surface of the ceramic vessel with the liquid gold for insulating muffle painting, which is composed of a gold color component having a metallic composition consisting of 60-90% Au, 3-15% Si, 2-11% In, 2-14% Ca by weight and a slurry forming liquid, and is fired at 500-900 deg.C. Next, the frit layer of a composition consisting of 0-9%Na2 O, 0-15% each of K2 O and Li2 O, 0-9% CaO, 0-3% each of MgO and P2 O5 , 10-18% Al2 O3 , 8-20% B2 O3 , 54-62% SiO2 , 0-2% ZrO2 (where Na2 O+K2 O +CaO>6% and sum total of the composition is 100%) is formed on the surface of the decorative display with <=50μm thickness and fired at 500-900 deg.C to obtain the objective noble metal surface decorating vessel. |
