Title:
BLACK LIGHT-SHIELDING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/228947
Kind Code:
A1
Abstract:
Provided is a black light-shielding material that has low luster and a high degree of blackness, and with which a black color close to pure black can be obtained. The black light-shielding material includes a base material and a light-shielding layer 3 formed on at least one surface of the base material. The light-shielding layer 3 contains fine black particles, a chain-like structure 33, and a resin component 31. The use of chain-like silica as the chain-like structure 33 produces a black color with an L-value of seven or less and a spectral reflectance of less than 0.8% at a wavelength of 360 nm, which is close to pure black.
Inventors:
NAMAI HIROSHI (JP)
Application Number:
PCT/JP2023/019188
Publication Date:
November 30, 2023
Filing Date:
May 23, 2023
Export Citation:
Assignee:
SOMAR CORP (JP)
International Classes:
G02B5/00; B32B7/023; B32B27/20; G02B5/02
Domestic Patent References:
| WO2020059381A1 | 2020-03-26 | |||
| WO2016129381A1 | 2016-08-18 |
Foreign References:
| JP2016148846A | 2016-08-18 | |||
| JP2016080770A | 2016-05-16 |
Attorney, Agent or Firm:
ARIMA Momoko (JP)
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