Title:
WATER FILM EVALUATION METHOD, AND ANTIFOGGING AGENT EVALUATION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/107823
Kind Code:
A1
Abstract:
This water film evaluation method for evaluating the uniformity of a water film includes: a first step of preparing a water film formation substrate having a main surface for forming a water film; a second step of obtaining an evaluation image by capturing an image, through the water film formation substrate having a water film formed on the main surface, of a subject including a pattern in which a plurality of regions having a prescribed brightness are arranged with a prescribed area; and a third step of deriving a water film uniformity index indicating the uniformity of the water film, on the basis of the area distribution in the evaluation image of the regions having the prescribed brightness.
Inventors:
FUKUTA RYUICHIRO (JP)
KOTAKE TOMOHIKO (JP)
SHIMIZU MARI (JP)
KIKKAWA CHISATO (JP)
YAMANAKA TAKAHIRO (JP)
NAKANE YURI (JP)
KOTAKE TOMOHIKO (JP)
SHIMIZU MARI (JP)
KIKKAWA CHISATO (JP)
YAMANAKA TAKAHIRO (JP)
NAKANE YURI (JP)
Application Number:
PCT/JP2021/042270
Publication Date:
May 27, 2022
Filing Date:
November 17, 2021
Export Citation:
Assignee:
SHOWA DENKO MATERIALS CO LTD (JP)
International Classes:
G01N21/59; G01N21/84
Domestic Patent References:
| WO2016140146A1 | 2016-09-09 |
Foreign References:
| JP2018115864A | 2018-07-26 | |||
| JP2018025476A | 2018-02-15 | |||
| JPH0929185A | 1997-02-04 | |||
| JPS6111313B2 | 1986-04-02 | |||
| JP2003050219A | 2003-02-21 | |||
| CN107651864A | 2018-02-02 | |||
| JP2016027134A | 2016-02-18 |
Other References:
OSUGA, HIROSHI: "Packaging technology Yomoyama Banashi: Talk about all sort of things for packaging (26th) Anti-fog evaluation method", FOOD PACKAGING, vol. 62, no. 5, 1 May 2018 (2018-05-01), pages 52 - 57, XP009536836, ISSN: 1880-9294
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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