Coating film evaluation structure and evaluation method
AssigneeNTT, Inc.
InventorsAzusa Ishii, Shingo Mineta, Soichi Oka
Life of this patent
Estimating the term…
Abstract
A coating film evaluation structure includes a laminate including a first sheet, a second sheet, and a third sheet which are laminated. The second sheet is disposed on the first sheet, and the third sheet is disposed on the second sheet. In the laminate, the area of each sheet gradually reduces in the lamination direction, and a stepped portion is provided at an end portion. The coating film to be evaluated and the plurality of sheets have different colors. The coating film evaluation structure includes a coating film layer formed on the sheet having the largest area among the plurality of sheets so as to cover the other sheets and having a flat surface.
Claims17
A coating film evaluation structure for evaluating a decrease in thickness of a coating film, the structure comprising:
- a laminate comprising a plurality of sheets laminated together;
- a coating film layer on a first sheet of the plurality of sheets having a largest area among the plurality of sheets, the coating film layer covering remaining sheets of the plurality of sheets, wherein the coating film layer has a flat surface and comprises a same material as the coating film;
- wherein areas of each of the sheets in the laminate become smaller along a lamination direction and a stepped portion is provided at an end portion of the laminate;
- wherein the coating film and each of the sheets have different colors;
- and
- wherein each of the sheets has a known thickness.
A coating film evaluation method for evaluating a decrease in thickness of a coating film, the method comprising:
- installing a coating film evaluation structure in a vicinity of a structure on which the coating film is provided, wherein the coating film evaluation structure comprises:
- a laminate comprising a plurality of sheets laminated together, wherein areas of each of the sheets in the laminate become smaller along a lamination direction and a stepped portion is provided at an end portion of the laminate, wherein the coating film and each of the sheets have different colors, and wherein each of the sheets has a known thickness;
- and
- a coating film layer on a first sheet of the plurality of sheets having a largest area among the plurality of sheets, the coating film layer covering remaining sheets of the plurality of sheets, wherein the coating film layer has a flat surface and comprises a same material as the coating film;
- and
- evaluating an exposed state of the plurality of sheets due to a decrease in a thickness of the coating film layer by checking colors of the plurality of sheets after installing the coating film evaluation structure.
A coating film evaluation method for evaluating a decrease in thickness of a coating film, the method comprising:
- installing a coating film evaluation structure in a vicinity of a structure on which the coating film is provided, wherein the coating film evaluation structure comprises:
- a laminate comprising a plurality of sheets laminated together, wherein areas of each of the sheets in the laminate become smaller along a lamination direction and a stepped portion is provided at an end portion of the laminate, wherein the coating film and each of the sheets have different colors, and wherein each of the sheets has a known thickness;
- a coating film layer on a first surface of a first sheet of the plurality of sheets having a largest area among the plurality of sheets, the coating film layer covering remaining sheets of the plurality of sheets, wherein the coating film layer has a flat surface and comprises a same material as the coating film;
- and
- an adhesive layer on a second surface of the first sheet of the plurality of sheets, wherein the second surface is opposite the first surface;
- and
- evaluating an exposed state of the plurality of sheets due to a decrease in a thickness of the coating film layer by checking colors of the plurality of sheets after installing the coating film evaluation structure.
Dependencies are inferred from the claim text.