Title:
フタロシアニン組成物及びその製造方法、並びにそれを用いた電子写真感光体
Document Type and Number:
Japanese Patent JP4849385
Kind Code:
B2
Abstract:
Providing organic photoreceptors having higher sensitivity properties imparted by using different materials which separately have charge generation function and a charge transportation function. A phthalocyanine composition comprises oxytitanium phthalocyanine and metal-free phthalocyanine. It has a crystal form having peaks at Bragg angles (2 eta \! 0.2 deg ) of 7 deg , 9 deg , 14.1 deg , 18 deg , 23.7 deg and 27.3 deg in copper potassium- alpha 1.541- Angstrom X ray diffraction spectrum and having no peak at a Bragg angle (2 eta \! 0.2 deg ) of 9.5 deg in the copper potassium- alpha 1.541- Angstrom X ray diffraction spectrum. Independent claims are included for the following: (a) a process for the production of a phthalocyanine composition comprising carrying out crystal transformation treatment of an amorphous oxytitanium phthalocyanine (TiOPc) and an amorphous metal-free phthalocyanine in a solvent containing water and a naphthalene, to convert them into a composition containing TiOPc and a metal-free phthalocyanine;and (b) an electrophotographic photoreceptor comprising an electrically conductive substrate and a photosensitive layer containing the phthalocyanine composition as a charge-generating material.
Inventors:
Tamotsu Horiuchi
Hideki Nagamura
Makoto Okachi
Hideki Nagamura
Makoto Okachi
Application Number:
JP2000324023A
Publication Date:
January 11, 2012
Filing Date:
October 24, 2000
Export Citation:
Assignee:
Hodogaya Chemical Co., Ltd.
International Classes:
C09B67/20; C09B47/04; C09B67/12; C09B67/22; C09B67/50; G03G5/06
Domestic Patent References:
| JP8295817A | ||||
| JP867829A | ||||
| JP1221461A | ||||
| JP11349845A | ||||
| JP3998853B2 |