Title:
SORTING DEVICE FOR WASTE PLASTIC, AND METHOD FOR SORTING WASTE PLASTIC
Document Type and Number:
WIPO Patent Application WO/2023/007824
Kind Code:
A1
Abstract:
A sorting device for waste plastic, comprising: a surface treatment unit for treating the surfaces of waste plastic pieces including black-colored waste plastic pieces; an irradiation unit for irradiating the surface-treated waste plastic pieces with light; a reflectance spectrum detection unit for receiving reflected light of the emitted light and detecting the spectrum of the reflected light; a determination unit for determining the materials of the waste plastic pieces on the basis of the spectrum of the reflected light; and a sorting unit for at least sorting the black-colored waste plastic pieces according to material on the basis of the results of the determination.
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Inventors:
OISHI SHOJI (JP)
KONO KAITO (JP)
KONO KAITO (JP)
Application Number:
PCT/JP2022/011859
Publication Date:
February 02, 2023
Filing Date:
March 16, 2022
Export Citation:
Assignee:
DAIO SEISHI KK (JP)
International Classes:
B07C5/342; B29B17/00; G01N21/3563
Foreign References:
JP5367145B1 | 2013-12-11 | |||
JP2001334572A | 2001-12-04 | |||
JP2018100903A | 2018-06-28 | |||
US20170336264A1 | 2017-11-23 |
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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