Title:
ALUMINUM FOIL FOR ULTRAVIOLET LIGHT REFLECTING MATERIALS AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2017/158989
Kind Code:
A1
Abstract:
Provided is an aluminum foil for ultraviolet light reflecting materials, which has a reflectance higher than those of conventional aluminum foils by 85% or more with respect to ultraviolet light in a wavelength range of 250 nm to 400 nm and by 80% or more with respect to deep ultraviolet light in a wavelength range of 254 nm to 265 nm. The total surface area of aluminum particles pressed into or adhered to a region of a predetermined surface area relative to the surface area of the region is 0.05% or less. The total surface area of crystallized materials present in the region relative to the surface area of the region is 2% or less. The average surface area per one crystallized material is 2 μm2 or less. The region has a surface roughness Ra of less than 20 nm.
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Inventors:
SHINGU AKIRA (JP)
OOYAGI MITSUNARI (JP)
OOYAGI MITSUNARI (JP)
Application Number:
PCT/JP2016/088915
Publication Date:
September 21, 2017
Filing Date:
December 27, 2016
Export Citation:
Assignee:
TOYO ALUMINIUM KK (JP)
International Classes:
B21B1/22; B21B3/00; C22C21/00; C22F1/00; C22F1/04
Domestic Patent References:
| WO2015019960A1 | 2015-02-12 |
Foreign References:
| JP2002322530A | 2002-11-08 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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