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Title:
LOW-REFLECTIVITY BLACK FILM, AND METHOD FOR MANUFACTURING LAMINATE
Document Type and Number:
WIPO Patent Application WO/2019/111990
Kind Code:
A1
Abstract:
The present invention provides a low-reflectivity black film having a good low-reflective property due to low reflectivity in both regular reflection and scattering reflection, having a sufficiently smooth surface, and having a high degree of blackness. The low-reflectivity black film according to the present invention includes a porous black pigment having a porosity of 50% or more and a binder component at a volume ratio of 50:50-100:0, wherein: with regard to surface roughness parameters Rt, Ra, Rt is 0.15-5 μm, and Ra is 0.01-0.5 μm; an L* value is 20 or less; and in a range of 400-700 nm, the maximum value of the regular reflectivity is 0.8% or less, the maximum value of the scattering reflectivity is 2% or less, and the maximum value of the light transmittance is 5% or less.

Inventors:
TANAKA Naohiro (2-1, Kyobashi 2-chome, Chuo-k, Tokyo 31, 〒1040031, JP)
Application Number:
JP2018/044865
Publication Date:
June 13, 2019
Filing Date:
December 06, 2018
Export Citation:
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Assignee:
TOYO INK SC HOLDINGS CO., LTD. (2-1 Kyobashi 2-chome, Chuo-ku Tokyo, 31, 〒1040031, JP)
International Classes:
G02B1/111; B05D5/06; G02B5/00; G02B5/20
Domestic Patent References:
WO2017150069A12017-09-08
Foreign References:
JP2005099421A2005-04-14
JP2013190500A2013-09-26
JP2014070169A2014-04-21
JP2005148233A2005-06-09
JP2002292798A2002-10-09
US20080118760A12008-05-22
US20150234098A12015-08-20
Attorney, Agent or Firm:
IEIRI Takeshi (HIBIKI IP Law Firm, Asahi Bldg. 5th Floor 3-33-8, Tsuruya-cho, Kanagawa-ku, Yokohama-sh, Kanagawa 35, 〒2210835, JP)
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