公开(公告)号：US20230017857A1

公开(公告)日：2023-01-19

申请号：US17280675

申请日：2021-03-01

Applicant: TOTO LTD.

Inventor： Yui NODA ,  Saori UKIGAI ,  Yuya SUZUKI

IPC: C23C14/08 ,  C23C14/34 ,  C23C14/54 ,  C23C14/00

Abstract: A part includes a base material, a colored layer on the base material, and a surface layer on the colored layer, wherein the colored layer contains Zr, and optionally, C and/or N, a ratio (HZr oxide/HZr) of a peak height derived from Zr oxide (HZr oxide) to a peak height of Zr (HZr) at an interface of the colored layer on the side of the surface layer is more than 0 and less than 4.5, the interface is a point where Zr is detected by sputtering the part from the side of the surface layer with an XPS depth direction analysis, and the ratio (HZr oxide/HZr) at a point where Ar sputtering is performed for 5 minutes from the interface of the colored layer on the side of the surface layer with the XPS depth direction analysis is 0 to less than 3. The surface layer is water-repellent and exhibits a sputtering time of 5 minutes or less