Patent ID: 7175924
Filing Date: 2007-02-13
Classification: A47G,C04B

Abstract:
1. A fine feldspathic earthenware comprising a body and a glaze layer covering surfaces of said body, said body having water absorption percentage of not lower than 3% and lower than 15% and including an annular bottom formed on a bottom portion of the body, wherein an improvement comprises: said glaze layer being absent on a surface of said annular bottom; said surface of said annular bottom being covered with an annular vitrified layer which has substantially no water absorbing property; said annular vitrified layer being formed of a composition that has a lower degree of refractoriness than said body and a higher degree of refractoriness than said glaze layer; and said composition being vitrified when said body is biscuit-fired, and said composition not being fused when said body is glost-fired.