Mitsubishi Paper Mills Limited

Michihiko Sato

Tamotsu Horiuchi

Kazuyuki Suruga

Kazuchiyo Takaoka

Makoto Okaji

Yoichiro Azuma

Yasuhiro Aizawa

A photoreactive agent is provided for removing harmful materials which comprises a substrate and a layer containing a photoreactive semiconductor and organic fine particles coated with inorganic fine particles which is formed on at least one side of the substrate. A photoreactive agent is provided for removing harmful materials which comprises a substrate, a layer containing a photoreactive semiconductor and a layer containing organic fine particles coated with inorganic fine particles which layers are formed in that order on at least one side of the substrate. A photoreactive agent is provided for removing harmful materials which comprises a substrate, a layer containing a photoreactive semiconductor and a layer containing film-forming inorganic fine particles and a water repellent which layers are formed in that order on at least one side of the substrate. A photoreactive agent is provided for removing harmful materials which comprises a substrate, a layer containing a photoreactive semiconductor, a layer containing film-forming inorganic fine particles and a layer containing a water repellent which layers are formed in that order on at least one side of the substrate. The photoreactive agents for removing harmful materials are excellent in ability to remove harmful materials such as malodor, are water-resistant, are not changed in characteristics over a long period of time, and can easily be produced.

Photoreactive agent containing photoreactive semiconductor for removing harmful materials

Oxytitanium phthalocyanine having a novel crystal form having excellent electrophotographic properties, such as a high charge potential, a high sensitivity and stable performances free from causing changes in various properties in repeated use, can be produced in the absence of a halogen substance, by carrying out the crystal transformation of amorphous oxytitanium phthalocyanine in a solvent comprising water and naphthalene.

Oxytitanium phthalocyanine process for the production thereof and electrophotographic photoreceptor to which the oxytitanium phthalocyanine is applied

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Tokyo, Japan

Michihiko Sato