CN109791384A - Electrophtography photosensor, handle box and image forming apparatus - Google Patents

Electrophtography photosensor, handle box and image forming apparatus Download PDF

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Publication number
CN109791384A
CN109791384A CN201780060103.9A CN201780060103A CN109791384A CN 109791384 A CN109791384 A CN 109791384A CN 201780060103 A CN201780060103 A CN 201780060103A CN 109791384 A CN109791384 A CN 109791384A
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China
Prior art keywords
compound
resin
filler particles
changing
electrophtography photosensor
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CN201780060103.9A
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Chinese (zh)
Inventor
鹤见裕树
宫本荣一
东润
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Kyocera Document Solutions Inc
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Kyocera Document Solutions Inc
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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02Charge-receiving layers
    • G03G5/04Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/05Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02Charge-receiving layers
    • G03G5/04Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/06Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

Electrophtography photosensor (100) has conductive base (101) and photosensitive layer (102).Photosensitive layer (102) is single layer.Photosensitive layer (102) contains charge producing agent, cavity conveying agent, electron transporting agent, filler particles and binding resin.Filler particles contain resin particle.Binding resin contains the polyarylate resin of general formula (1) expression.In general formula (1), X and Y is respectively independent, is the bilvalent radical that chemical formula (1-1), (1-2), (1-3), (1-4), (1-5), (1-6) or (1-7) is indicated.

Description

Electrophtography photosensor, handle box and image forming apparatus
Technical field
The present invention relates to Electrophtography photosensor, handle box and image forming apparatuses.
Background technique
Electrophtography photosensor is used in electrofax mode image forming apparatus.Electrophtography photosensor for example has list The photosensitive layer of layer.The photosensitive layer of single layer has the function of charge generation and charge transfer function.
Electrophtography photosensor described in patent document 1 has photosensitive layer.Disclosing the resin in photosensitive layer is, for example, to change The polyarylate resin that formula (R-D) indicates.
[changing 1]
(patent document)
Patent document 1: Japanese Unexamined Patent Publication 2007-121751 bulletin
Summary of the invention
But the Electrophtography photosensor described in patent document 1 (has chemical formula (R-D) expression in photosensitive layer Polyarylate resin), in terms of wear resistance, resistance to marring and filming resistance, the leeway that is also improved.
The present invention is made in view of the above subject, and its purpose is to provide a kind of wear resistances, resistance to marring and resistance to The all excellent Electrophtography photosensor of film forming.It is also an object of the invention that providing handle box and image forming apparatus, pass through Has above-mentioned Electrophtography photosensor, the image failure being able to suppress in formed image.
Electrophtography photosensor of the invention has conductive base and photosensitive layer.The photosensitive layer is single layer.It is described Photosensitive layer contains charge producing agent, cavity conveying agent, electron transporting agent, filler particles and binding resin.The filler particles contain There is resin particle.The binding resin contains the polyarylate resin of the following general formula (1) expression.
[changing 2]
In the general formula (1), kr and kt are respectively independent, indicate 2 or 3.R and s is respectively independent, indicates 0 or more 49 or less Number.T and u is respectively independent, indicates 1 or more 50 number below.R+s+t+u=100.R+t=s+u.X and Y is respectively independent, under being State the bilvalent radical of chemical formula (1-1), (1-2), (1-3), (1-4), (1-5), (1-6) or (1-7) expression.
[changing 3]
Handle box of the invention has above-mentioned Electrophtography photosensor.
Image forming apparatus of the invention has Electrophtography photosensor, electro-mechanical part, exposure portion, development section and transfer section. The electro-mechanical part charges the surface of the Electrophtography photosensor.The Electrophtography photosensor of the exposure portion to electrification The surface be exposed, form electrostatic latent image on the surface of the Electrophtography photosensor.The development section will The latent electrostatic image developing is toner image.The transfer section transfers the toner image from the Electrophtography photosensor Onto transfer printing body.It is positive polarity that the electro-mechanical part, which charges the surface of the Electrophtography photosensor,.The electrofax sense Body of light is above-mentioned Electrophtography photosensor.
(invention effect)
Electrophtography photosensor according to the present invention can be improved wear resistance, resistance to marring and filming resistance.In addition, Handle box and image forming apparatus according to the present invention are able to suppress to be formed by having above-mentioned Electrophtography photosensor Image failure in image.
Detailed description of the invention
Figure 1A is the schematic sectional view of an example of Electrophtography photosensor involved in embodiment of the present invention.
Figure 1B is the schematic sectional view of an example of Electrophtography photosensor involved in embodiment of the present invention.
Fig. 1 C is the schematic sectional view of an example of Electrophtography photosensor involved in embodiment of the present invention.
Fig. 2 is an example of the structure of image forming apparatus, which has involved by embodiment of the present invention Electrophtography photosensor.
Fig. 3 is another example of the structure of image forming apparatus, which has involved by embodiment of the present invention And Electrophtography photosensor.
Fig. 4 is the polyarylate resin that chemical formula (R-2) is indicated1H-NMR map.
Fig. 5 is the polyarylate resin that chemical formula (R-4) is indicated1H-NMR map.
Fig. 6 is the polyarylate resin that chemical formula (R-5) is indicated1H-NMR map.
Specific embodiment
Hereinafter, detailed description of embodiments of the present invention.But the present invention be not defined in any way it is following Embodiment.The present invention is implemented again after can suitably changing in the range of its mesh.Additionally, there are be suitably omitted The case where in place of repeated explanation, but the main idea of invention is not therefore limited.
Hereinafter, being referred to as the compound and its derivative plus " class " after compound name sometimes.In addition, in chemical combination Name be referred to as after plus " class " come in the case where indicating polymer name, indicate the repetitive unit of polymer be originated from the compound or Its derivative of person.
Hereinafter, without special provision, halogen atom, C1-C6 alkyl, C1-C5 alkyl, C1-C4 alkyl, C1-C3 alkane Base, C1-C6 alkoxy, the meaning of C1-C3 alkoxy and C6-C14 aryl are as follows.
The example of halogen atom (halogen) is: fluorine atom (fluorine-based), chlorine atom (chloro), bromine atom (bromo) or iodine are former Sub (iodo).
C1-C6 alkyl, C1-C5 alkyl, C1-C4 alkyl and C1-C3 alkyl are all straight-chain or branched, and are nothings Replace.The example of C1-C6 alkyl is: methyl, ethyl, n-propyl, isopropyl, normal-butyl, sec-butyl, tert-butyl, n-pentyl, Isopentyl, neopentyl, 1,2- dimethyl propyl or hexyl.The example of C1-C5 alkyl is C1-C5 in the example of C1-C6 alkyl Base.The example of C1-C4 alkyl is the base of C1-C4 in the example of C1-C6 alkyl.The example of C1-C3 alkyl is C1-C6 alkyl The base of C1-C3 in example.
C1-C6 alkoxy and C1-C3 alkoxy are all straight-chain or branched, and are unsubstituted.C1-C6 alcoxyl The example of base is: methoxyl group, ethyoxyl, positive propoxy, isopropoxy, n-butoxy, sec-butoxy, tert-butoxy, positive penta oxygen Base, isoamoxy, neopentyl oxygen or hexyl.The example of C1-C3 alkoxy is the base of C1-C3 in the example of C1-C6 alkoxy.
C6-C14 aryl is, for example: the unsubstituted aromatic monocyclic alkyl of C6-C14, the unsubstituted aromatic condensation of C6-C14 are double Cyclic hydrocarbon radical or the unsubstituted aromatic condensation tricyclic hydrocarbyl of C6-C14.The example of C6-C14 aryl is: phenyl, naphthalene, anthryl or Person's phenanthryl.
<Electrophtography photosensor>
Present embodiment is related to Electrophtography photosensor (hereinafter, being recorded as photoreceptor).The photoreceptor of present embodiment has excellent Different wear resistance, resistance to marring and filming resistance.Its reason is presumed as follows.
The photosensitive layer of the photoreceptor of present embodiment contains the resin particle as filler particles.Resin particle is in photosensitive layer Surface on formed it is uneven.It is uneven by being formed on the surface of photosensitive layer, make the cleaning in image forming apparatus The contact area that portion's (for example, cleaning blade) is contacted with the photosensitive layer of photoreceptor becomes smaller.Thereby, it is possible to suitable by cleaning section The surface of photosensitive layer is cleaned sharply.As a result, it is possible to improve the resistance to marring of photoreceptor and filming resistance.
In addition, the polyarylate resin that general formula (1) indicates (hereinafter, remember sometimes in the photosensitive layer of the photoreceptor of present embodiment Carry is polyarylate resin (1)) it is used as binding resin.Polyarylate resin (1) has high rigidity.By making photosensitive layer contain high rigidity Polyarylate resin (1) and contain resin particle, be able to suppress photosensitive layer contact image formed device in cleaning section cause The abrasion of photosensitive layer, but also be able to suppress worn out photosensitive layer and be detached from resin particle.As a result, it is possible to improve photoreceptor Wear resistance, resistance to marring and filming resistance.
Hereinafter, A~Fig. 1 C referring to Fig.1, is illustrated the structure of photoreceptor 100.Figure 1A~Fig. 1 C is respectively this embodiment party The schematic sectional view of one example of photoreceptor 100 involved in formula.
As shown in Figure 1A, photoreceptor 100 for example has conductive base 101 and photosensitive layer 102.Photosensitive layer 102 is single layer 's.Photoreceptor 100 is single-layer type photoreceptor, has the photosensitive layer 102 of single layer.
As shown in Figure 1B, photoreceptor 100 can also have the 103 (primary coat of conductive base 101, photosensitive layer 102 and middle layer Layer).Middle layer 103 is arranged between conductive base 101 and photosensitive layer 102.As shown in Figure 1A, photosensitive layer 102 can be direct It is arranged on conductive base 101, as shown in Figure 1B, photosensitive layer 102 can also be arranged in electric conductivity indirectly across middle layer 103 On matrix 101.
As shown in Figure 1 C, photoreceptor 100 can also have conductive base 101, photosensitive layer 102 and protective layer 104.Protection Layer 104 is arranged on photosensitive layer 102.In the case where photoreceptor 100 has protective layer 104, protective layer 104 is arranged in photosensitive layer On 102.Since the wear resistance, resistance to marring and filming resistance of photosensitive layer 102 are all excellent, photoreceptor 100 can not also Has protective layer.Based on same consideration, photosensitive layer 102 can be used as the outmost surface layer of photoreceptor 100.
As long as the thickness of photosensitive layer 102 can make photosensitive layer play one's part to the full, it is not particularly limited.Photosensitive layer 102 thickness is preferably 5 μm or more 100 μm hereinafter, more preferably 10 μm or more 50 μm or less.In order to improve photoreceptor 100 Sensitivity characteristic, preferably charging the surface of photoreceptor 100 is positive polarity to form image.That is, photoreceptor 100 is excellent It is selected as positively charged type Electrophtography photosensor.
As described above, A~Fig. 1 C illustrates the structure of photoreceptor 100 referring to Fig.1.Hereinafter, being carried out to photoreceptor more detailed Explanation.
<photosensitive layer>
Photosensitive layer contains charge producing agent, cavity conveying agent, electron transporting agent, filler particles and binding resin.Photosensitive layer according to It needs that additive can also be contained.Charge producing agent, cavity conveying agent, electron transporting agent, filler particles, binding resin and root Within the same layer according to need ingredient (for example, additive) to be added.
(binding resin)
Binding resin contains polyarylate resin (1).By making binding resin contain polyarylate resin (1), photoreceptor can be improved Wear resistance.Polyarylate resin (1) can be used alone, and can also combine two or more use.
[changing 4]
In general formula (1), kr and kt are respectively independent, indicate 2 or 3.R and s is respectively independent, indicates 0 or more 49 number below. T and u is respectively independent, indicates 1 or more 50 number below.R+s+t+u=100.R+t=s+u.X and Y is respectively independent, is followingization The bilvalent radical that formula (1-1), (1-2), (1-3), (1-4), (1-5), (1-6) or (1-7) indicates.
[changing 5]
X and Y each other can be identical or different.X and Y are preferably different from each other.In addition, the divalent that chemical formula (1-4) indicates The preference of base is the bilvalent radical that chemical formula (1-4 ') is indicated.
[changing 6]
Kr and kt each other can be identical or different.In the case where kr and kt different from each other, in kr and kt, one indicates 2, Another indicates 3.Kr and kt preferably indicates mutually the same number, indicates 2 or 3.Kr and kt more preferably indicates 3.
The repetitive unit that there is polyarylate resin (1) chemical formula (1-a) to indicate is (hereinafter, sometimes referred to as repetitive unit (1- A)), the repetition of general formula (1-b) indicates repetitive unit (hereinafter, sometimes referred to as repetitive unit (1-b)), general formula (1-c) expression The repetitive unit that unit (hereinafter, sometimes referred to as repetitive unit (1-c)) and general formula (1-d) indicate is (hereinafter, sometimes referred to as heavy Multiple unit (1-d)).
[changing 7]
Kr, X, kt and Y in general formula (1-a)~(1-d) is identical as kr, X, kt and Y meaning in general formula (1) respectively.
In polyarylate resin (1), repetitive unit (1-a)~(1-d) if repetition list of the arrangement from aromatic diol Member is adjacent to each other with the repetitive unit from aromatic dicarboxylic acid, is not particularly limited.Weight from aromatic diol Multiple unit is repetitive unit (1-a) and (1-c).Repetitive unit from aromatic dicarboxylic acid is repetitive unit (1-b) and (1- d).For example, repetitive unit (1-a) is adjacent with repetitive unit (1-b) or repetitive unit (1-d) and is mutually bonded.In addition, repeating Unit (1-c) is adjacent with repetitive unit (1-b) or repetitive unit (1-d) and is mutually bonded.
In general formula (1), r and s each independently represent 0 or more 49 number below, and t and u each independently represent 1 or more 50 Number below.R, the integer in this way of numerical example represented by s, t and u and decimal.R preferably indicates 0 or more 25 number below.S is preferred To indicate 0 or more 25 number below.T preferably indicates 25 or more 50 numbers below.U preferably indicates that 25 or more 50 is below Number.R and s each other can be identical or different.R and u each other can be identical or different.T and s each other can be identical or different.T and u It each other can be identical or different.S and u each other can be identical or different.S and u are preferably different from each other.
In polyarylate resin (1), relative to the number of repetitive unit (1-a), the number of repetitive unit (1-b), repetitive unit (1- C) number of number and repetitive unit (1-d) adds up to, and the percentage of the number of repetitive unit (1-a) is r.In polyarylate resin (1), Relative to the number of repetitive unit (1-a), the number of repetitive unit (1-b), the number of repetitive unit (1-c) and repetitive unit (1-d) Several is total, and the percentage of the number of repetitive unit (1-b) is s.In polyarylate resin (1), relative to repetitive unit (1-a) Total, the repetitive unit (1-c) of the number of number, the number of repetitive unit (1-b), the number of repetitive unit (1-c) and repetitive unit (1-d) The percentage of number be t.In polyarylate resin (1), relative to the number of repetitive unit (1-a), the number of repetitive unit (1-b), again The number of the number and repetitive unit (1-d) of multiple unit (1-c) adds up to, and the percentage of the number of repetitive unit (1-d) is u.In addition, r, S, t and u not instead of values obtained in 1 resin chain, it is (a plurality of from the entire polyarylate resin (1) contained by photosensitive layer Resin chain) obtained in arithmetic average.
R, s, t and u in general formula (1) meet calculation formula " r+s+t+u=100 " and calculation formula " r+t=s+u ".
R/ (r+t) is preferably 0.00, or preferably 0.30 or more 0.70 or less.In polyarylate resin (1), relative to weight The number of the number and repetitive unit (1-c) of multiple unit (1-a) adds up to, and the ratio (molar fraction) of the number of repetitive unit (1-a) is r/(r+t).In the case where r/ (r+t) is 0.00, r indicates that 0, t indicates 50.
S/ (s+u) is preferably 0.00, or preferably 0.30 or more 0.70 or less.In polyarylate resin (1), relative to weight The number of the number and repetitive unit (1-d) of multiple unit (1-b) adds up to, and the ratio (molar fraction) of the number of repetitive unit (1-b) is s/(s+u).In the case where s/ (s+u) indicates 0.00, s indicates that 0, u indicates 50.
In polyarylate resin (1), the amount (molal quantity) of the substance relative to whole repetitive units, repetitive unit (1-a), Total content of (1-b), (1-c) and (1-d) is preferably 80mol% or more, more preferably 90mol% or more, particularly preferably 100mol%.In polyarylate resin (1), the amount (molal quantity) of the substance relative to whole repetitive units, repetitive unit (1-a), When total content of (1-b), (1-c) and (1-d) is 100mol%, the repetitive unit in polyarylate resin (1) only repeats list First (1-a), (1-b), (1-c) and (1-d).
In the case where r and s are not 0, in order to improve the wear resistance, resistance to marring and filming resistance of photoreceptor, X and Y preferably indicates base below.In X and Y, one be chemical formula (1-1) indicate bilvalent radical, the other is chemical formula (1-2) The bilvalent radical of expression.Alternatively, in X and Y, one is bilvalent radical that chemical formula (1-1) is indicated, the other is chemical formula (1-4) table The bilvalent radical shown.Alternatively, in X and Y, one is bilvalent radical that chemical formula (1-2) is indicated, the other is chemical formula (1-4) indicates Bilvalent radical.Alternatively, in X and Y, one is bilvalent radical that chemical formula (1-3) is indicated, the other is what chemical formula (1-4) indicated Bilvalent radical.Alternatively, in X and Y, one is bilvalent radical that chemical formula (1-5) is indicated, the other is chemical formula (1-6) indicate two Valence base.
In the case where r and s are not 0, in order to improve the wear resistance, resistance to marring and filming resistance of photoreceptor, X and Y more preferably indicates base below.In X and Y, one be chemical formula (1-1) indicate bilvalent radical, the other is chemical formula (1- 2) bilvalent radical indicated.Alternatively, in X and Y, one is bilvalent radical that chemical formula (1-1) is indicated, the other is chemical formula (1-4) The bilvalent radical of expression.Alternatively, in X and Y, one is bilvalent radical that chemical formula (1-2) is indicated, the other is chemical formula (1-4) table The bilvalent radical shown.Alternatively, in X and Y, one is bilvalent radical that chemical formula (1-3) is indicated, the other is chemical formula (1-4) indicates Bilvalent radical.
In the case where r and s indicate 0, in order to improve the wear resistance, resistance to marring and filming resistance of photoreceptor, Y is excellent It is selected as the bilvalent radical that chemical formula (1-1) or (1-3) are indicated.
In the case where repetitive unit (1-a) has identical chemical structure with repetitive unit (1-c), kr and kt indicate identical Number.In the case where kr and kt indicates identical number, the polyarylate resin that general formula (1) indicates is preferably what general formula (1 ') indicated Polyarylate resin.
[changing 8]
In general formula (1 '), kv indicates 2 or 3.2 kv indicate mutually the same number.X and Y is respectively independent, is chemical formula The bilvalent radical that (1-1), (1-2), (1-3), (1-4), (1-5), (1-6) or (1-7) is indicated.V+w=1.00.V/ (v+w) is 0.00 or 0.30 or more 0.70 or less.
The repetitive unit that there is the polyarylate resin that general formula (1 ') indicates chemical formula (1 '-a) to indicate (hereinafter, record sometimes The repetitive unit indicated for repetitive unit (1 '-a)) and general formula (1 '-b) (hereinafter, sometimes referred to as repetitive unit (1 '-b)).
[changing 9]
[changing 10]
In general formula (1 '), relative to the total number of repetitive unit (1 '-a) and (1 '-b), the number of repetitive unit (1 '-a) Ratio (molar fraction) is v.Relative to the total number of repetitive unit (1 '-a) and (1 '-b), the ratio of the number of repetitive unit (1 '-b) Rate (molar fraction) is w.In addition, in the case where v/ (v+w) indicates 0.00, in the polyarylate resin that general formula (1 ') indicates only Repetitive unit (1 '-b), without repetitive unit (1 '-a).
In the polyarylate resin that general formula (1 ') indicates, the amount (molal quantity) of the substance relative to whole repetitive units is repeated The ratio (molar fraction) of the amount (molal quantity) of unit (1 '-a) and (1 '-b) total substance is preferably 80mol% or more, more Preferably 90mol% or more, particularly preferably 100mol%.In the polyarylate resin that general formula (1 ') indicates, relative to whole weights The ratio of the amount (molal quantity) of the amount (molal quantity) of the substance of multiple unit, repetitive unit (1 '-a) and (1 '-b) total substance When (molar fraction) is 100mol%, the repetitive unit in polyarylate resin that general formula (1 ') indicates only has repetitive unit (1 '-a) (1 '-b).As described above, illustrating that repetitive unit (1-a) has the case where identical chemical structure with repetitive unit (1-c).
The preference of polyarylate resin (1) is chemical formula (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R- 7) or (R-8) indicate polyarylate resin.Hereinafter, chemical formula (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) indicate polyarylate resin be recorded as respectively sometimes polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8).
[changing 11]
[changing 12]
[changing 13]
[changing 14]
[changing 15]
[changing 16]
[changing 17]
[changing 18]
On the basis of improving the wear resistance, resistance to marring and filming resistance of photoreceptor, in order to improve polyarylate resin (1) dissolubility relative to photosensitive layer formation solvent, preferably are as follows: in general formula (1), r and s be not different from each other for 0, X and Y, S/ (s+u) be 0.30 or more 0.70 hereinafter, have in X and Y one be chemical formula (1-1) indicate bilvalent radical.Such polyarylate In resin, preferred example is polyarylate resin (R-4), (R-5) or (R-8).
In order to improve the resistance to marring and filming resistance of photoreceptor, and the wear resistance of photoreceptor is further increased, preferably Are as follows: in general formula (1), r and s be not different from each other for 0, X and Y, and s/ (s+u) is 0.30 or more 0.70 hereinafter, in X and Y, there is one It is the bilvalent radical that chemical formula (1-1) is indicated, the other is the bilvalent radical that chemical formula (1-2) indicates.In such polyarylate resin, Preferred example is polyarylate resin (R-5).
In order to improve the wear resistance, resistance to marring and filming resistance of photoreceptor, preferably also: in general formula (1), r and s are Indicate that 0, t and u indicates that 50, Y is the bilvalent radical that chemical formula (1-3) is indicated.In such polyarylate resin, preferred example It is polyarylate resin (R-6).
In order to improve the wear resistance, resistance to marring and filming resistance of photoreceptor, preferably are as follows: in general formula (1), r and s are not Different from each other with Y for 0, X, s/ (s+u) is 0.30 or more 0.70 hereinafter, in X and Y, and one is the two of chemical formula (1-3) expression Valence base, the other is the bilvalent radical that chemical formula (1-4) indicates.In such polyarylate resin, preferred example is polyarylate Resin (R-7).
In order to improve the wear resistance, resistance to marring and filming resistance of photoreceptor, preferably are as follows: in general formula (1), r and s are not Different from each other with Y for 0, X, s/ (s+u) is 0.30 or more 0.70 hereinafter, s and u indicate number different from each other.Based on similarly examining Consider, more preferably: in general formula (1), r and s be not different from each other for 0, X and Y, and s/ (s+u) is 0.30 or more 0.70 hereinafter, s and u Indicate number different from each other, in X and Y, one is bilvalent radical that chemical formula (1-1) is indicated, the other is chemical formula (1-4) table The bilvalent radical shown.In such polyarylate resin, preferred example is polyarylate resin (R-8).
The viscosity average molecular weigh of polyarylate resin (1) is preferably 10,000 or more, more preferably 20,000 or more, further excellent It is selected as 30,000 or more.In the case where the viscosity average molecular weigh of polyarylate resin (1) is 10 000 or more, binding resin it is wear-resisting Damage property improves, and photosensitive layer becomes not easy to wear.On the other hand, the viscosity average molecular weigh of binding resin is preferably 80,000 hereinafter, more Preferably 51,000 or less.In the case where the viscosity average molecular weigh of binding resin is 80,000 situation below, polyarylate resin (1) is often It is easily soluble in the solvent of photosensitive layer formation, thus photosensitive layer easy to form.
There is no particular limitation for the manufacturing method of polyarylate resin (1).The manufacturing method of polyarylate resin (1) is, for example: The method that aromatic diol and aromatic dicarboxylic acid for constituting polyarylate resin repetitive unit carry out polycondensation.Polyarylate resin (1) synthetic method is not particularly limited, and can using well-known synthetic method, (for more specifically, polymerisation in solution is melted Melt polymerization or interfacial polymerization etc.).
Aromatic dicarboxylic acid for synthesizing polyarylate resin (1) is the compound that general formula (1-e) and (1-f) are indicated.It is logical The Y in X and general formula (1-f) in formula (1-e) is identical as X the and Y meaning in general formula (1) respectively.It synthesizes polyarylate resin (1) When, the aromatic dicarboxylic acid derivative being derived by aromatic dicarboxylic acid also can be used.Aromatic dicarboxylic acid derivative Example is: aromatic dicarboxylic acid dichloride, aromatic dicarboxylic acid dimethyl ester, aromatic dicarboxylic acid diethylester or aromatic series two Carboxylic acid anhydrides.Aromatic dicarboxylic acid dichloride has 2 "-C (=O)-Cl " bases.
[changing 19]
The compound that general formula (1-e) and (1-f) are indicated is the aromatic dicarboxylic acid for synthesizing polyarylate resin (1), Specific example is the compound that following chemical formula (1-g)~(1-1) and (1-q) are indicated.Hereinafter, chemical formula (1-g)~(1-1) and The compound that (1-q) is indicated is recorded as compound (1-g)~(1-1) and (1-q) respectively sometimes.
[changing 20]
The compound that chemical formula (1-j) indicates is the aromatic dicarboxylic acid for synthesizing polyarylate resin (1), preference It is the compound that following chemical formula (1-jj) is indicated.Hereinafter, the compound sometimes referred to as compound that chemical formula (1-jj) indicates (1-jj)。
[changing 21]
Aromatic diol for synthesizing polyarylate resin (1) is the chemical combination that chemical formula (1-m) and general formula (1-n) indicate Object.The kt in kr and general formula (1-n) in general formula (1-m) is identical as kr the and kt meaning in general formula (1) respectively.Synthesize polyarylate When resin (1), the aromatic series diacetin from aromatic diol denaturation also can be used.
[changing 22]
The compound that chemical formula (1-m) and general formula (1-n) indicate is the aromatic series two for synthesizing polyarylate resin (1) Alcohol, specific example are following chemical formula (1-o) or the compound that (1-p) is indicated.Hereinafter, chemical formula (1-o) and (1-p) table The compound shown is recorded as compound (1-o) and (1-p) respectively sometimes.
[changing 23]
Binding resin in photosensitive layer can only have polyarylate resin (1).Alternatively, the binding resin in photosensitive layer is containing On the basis of polyarylate resin (1), it can also further contain the binding resin other than polyarylate resin (1) (hereinafter, remembering sometimes Carrying is other binding resins).Relative to the quality of binding resin, the containing ratio of polyarylate resin (1) be preferably 80 mass % with On, more preferably 90 mass % or more, particularly preferably 100 mass %.
Other binding resins are, for example: thermoplastic resin, thermosetting resin or light-cured resin.Thermoplastic resin is for example It is: polyarylate resin, styrene-butadiene copolymer, styrene-propene other than polycarbonate resin, polyarylate resin (1) Lonitrile copolymer, Styrene maleic acid copolymer, acrylate copolymer, Styrene-acrylic copolymer, polyvinyl resin, Ethylene-vinyl acetate copolymer, chlorinated polyethylene resin, Corvic, acrylic resin, ionomer resin, chloroethene Alkene-vinyl acetate co-polymer, alkyd resin, polyamide, polyurethane resin, polysulfone resin, phthalic acid Diallyl phthalate resin, ketone resin, polyvinyl butyral resin, polyester resin or polyether resin.Thermosetting resin is, for example: Silicone resin, epoxy resin, phenolic resin, Lauxite or melamine resin.Light-cured resin is, for example: propylene oxide Acid esters (acrylic acid adduct of epoxide) or polyurethane-acrylate (the acrylic acid addition of urethanes Object).Other binding resins can be used alone, and can also combine two or more use.
(filler particles)
Filler particles contain resin particle.Compared with non-resin particle (for example, silica dioxide granule or alumina particle), tree Rouge particle is not easy to damage the sensitivity characteristic of photoreceptor.It, can by making photosensitive layer contain the resin particle as filler particles The sensitivity characteristic of photoreceptor is maintained, and improves the wear resistance, resistance to marring and filming resistance of photoreceptor.Resin particle is preferred For silicone resin particle.
Volume Median diameter (the D of resin particle50) it is preferably 0.05 μm or more 5.00 μm hereinafter, more preferably 0.50 μm or more 5.00 μm hereinafter, further preferably 0.60 μm or more 3.00 μm hereinafter, particularly preferred 0.70 μm or more 2.00 μm or less.Resin When the Volume Median diameter of particle is 0.05 μm or more 5.00 μm or less, the wear resistance, anti-zoned of photoreceptor can be further increased Wound property and filming resistance.The Volume Median diameter of resin particle is for example using accurate particle size distribution measurement device (Beckman Kurt Co., Ltd.'s manufacture " Coulter Counter Multisizer3 ") it measures.In addition, Volume Median diameter, which refers to, passes through library You press the calculated median particle diameter of volume reference at special counting method.
Relative to the quality of photosensitive layer, the content of resin particle be preferably greater than 0.0 mass % and be 10.0 mass % with Under, more preferably 0.5 mass % or more, 10.0 mass % hereinafter, further preferably 2.5 mass % or more, 10.0 mass % with Under, particularly preferably 5.0 mass % or more, 9.5 mass % or less.The content of resin particle is big relative to the quality of photosensitive layer In 0.0 mass % and when being 10.0 mass % or less, the wear resistance of photoreceptor can be further increased.In addition, resin particle Content relative to the quality of photosensitive layer be to be not likely to produce greater than 0.0 mass % and when being 10.0 mass % or less by photoreceptor Surface it is uneven caused by image failure (for example, spot of stain etc).
Resin particle is preferably spherical.Compared with the resin particle of aciculiform, spherical resin particle is not easy in photosensitive layer shape At solvent in be aggregated.Therefore, it tends to form the photosensitive layer for being uniformly dispersed resin particle.Resin particle Shape is able to use electron microscope and is confirmed.
Filler particles in photosensitive layer can only have resin particle.Alternatively, the filler particles in photosensitive layer are containing resin It, can also be further containing the filler particles other than resin particle on the basis of particle.Relative to the quality of filler particles, resin The content of particle is preferably 80 mass % or more, more preferably 90 mass % or more, particularly preferably 100 mass %.
(charge producing agent)
As long as the charge producing agent of charge producing agent photoreceptor, is not particularly limited.Charge producing agent is, for example: Phthalocyanine pigment, class pigment, disazo pigment, trisazo pigment, dithione pyrrolopyrrole (dithioketo- Pyrrolopyrrole) pigment, without metal naphthalene phthalocyanine pigment, metal naphthalene phthalocyanine pigment, square acid color, indigo pigments, azulene Pigment, cyanine pigment, the powder of inorganic light-guide material (for example, selenium, selenium-tellurium, selenium-arsenic, cadmium sulfide or amorphous silicon), pyrans face Material, anthanthrene quinones pigment, triphenylmethane pigment, intellectual circle's class pigment, toluene amines pigment, pyrazolines pigment or quinoline a word used for translation Pyridine ketone pigment.Charge producing agent can be used alone, and can also combine two or more use.
Phthalocyanine pigment is, for example: the metal-free phthalocyanine or metal phthalocyanine that chemical formula (CG-1) indicates.Metal phthalocyanine example It is in this way: titanyl phthalocyanine, hydroxy gallium phthalocyanine or the gallium chlorine phthalocyaninate that chemical formula (CG-2) indicates.Phthalocyanine pigment can be crystallization, It is also possible to noncrystalline.The crystal shape (for example, α type, β type, Y type, V-type or II type) of phthalocyanine pigment does not limit especially It is fixed, the phthalocyanine pigment of various crystal shapes can be used.
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The crystallization of metal-free phthalocyanine is, for example: the X-type crystal of metal-free phthalocyanine is (hereinafter, sometimes referred to as X-type is without metal phthalein Cyanines).The crystallization of titanyl phthalocyanine is, for example: α type, β type or the Y type crystal of titanyl phthalocyanine are (hereinafter, sometimes referred to as α type, β type Or Y-shaped oxygen titanium phthalocyanines).
For example, digit optical formula image forming apparatus (for example, being beaten using the laser of semiconductor laser etc light source Print machine or facsimile machine) in, it is preferable to use 700nm above wavelength region have sensitivity photoreceptor.Based on 700nm with From the viewpoint of upper wavelength region has high quantum production rate, charge producing agent is preferably phthalocyanine pigment, more preferably without metal Phthalocyanine perhaps titanyl phthalocyanine further preferably X-type metal-free phthalocyanine or Y-shaped oxygen titanium phthalocyanines, particularly preferably Y-shaped oxygen titanium phthalein Cyanines.
Dress is formed using the image of short-wavelength laser light sources (for example, laser source with 350nm or more 550nm or less wavelength) In photoreceptor used in setting, charge producing agent is preferably anthanthrene quinones pigment.
Relative to 100 mass parts of binding resin contained in photosensitive layer, the content of charge producing agent is preferably 0.1 mass parts Above 50 below the mass, and more than more preferably 0.5 mass parts 30 below the mass, more than particularly preferably 0.5 mass parts 4.5 Below the mass.
(electron transporting agent)
The example of electron transporting agent is: quinones, diimide compounds, hydrazone compounds, thiapyran class compound, three Nitro thioxanthene ketone class compound, 3,4,5,7- tetranitros -9-Fluorenone class compound, Binitroanthracene compound, dinitro acridine Class compound, tetracyanoethylene, 2,4,8- trinitro- thioxanthones, dinitrobenzene, dinitro acridine, succinic anhydride, maleic anhydride or Person's dibromomaleic acid acid anhydride.Quinones is, for example: biphenyl quinones, azo quinones, anthraquinone analog compound, naphthalene Quinones, nitroanthracene quinones or dinitroanthraquinone class compound.Electron transporting agent can be used alone, Two or more use can also be combined.
In order to improve the wear resistance, resistance to marring and filming resistance of photoreceptor, electron transporting agent is preferably general formula (ET1), the compound that (ET2), (ET3), (ET4) or (ET5) is indicated.General formula (ET1), (ET2), (ET3), (ET4) and (ET5) compound indicated is recorded as compound (ET1), (ET2), (ET3), (ET4) and (ET5) respectively sometimes.Compound (ET1), (ET2), (ET3), (ET4) and (ET5) can be used alone, and can also combine two or more use.
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In general formula (ET1), (ET2), (ET3), (ET4) and (ET5), R11、R12、R21、R22、R23、R24、R31、R32、R41、 R42、R43、R51、R52、R53And R54It is respectively independent, indicate hydrogen atom, halogen atom, cyano, C1-C6 alkyl, C2-C6 alkenyl, C1-C6 alkoxy, C6-C14 aryl or the C6-C14 aryl at least one C1-C6 alkyl substituent.
In general formula (ET1)~(ET5), R11、R12、R21、R22、R23、R24、R31、R32、R41、R42、R43、R51、R52、R53And R54 Represented halogen atom is preferably chlorine atom (chloro).
In general formula (ET1)~(ET5), R11、R12、R21、R22、R23、R24、R31、R32、R41、R42、R43、R51、R52、R53And R54 Represented C1-C6 alkyl is preferably C1-C5 alkyl, more preferably methyl, ethyl, tert-butyl or 1,1- dimethyl propyl.
In general formula (ET1)~(ET5), R11、R12、R21、R22、R23、R24、R31、R32、R41、R42、R43、R51、R52、R53And R54 Represented C2-C6 alkenyl is, for example: C2-C4 alkenyl.
In general formula (ET1)~(ET5), R11、R12、R21、R22、R23、R24、R31、R32、R41、R42、R43、R51、R52、R53And R54 Represented C1-C6 Alkoxy is in this way: C1-C3 alkoxy.
In general formula (ET1)~(ET5), R11、R12、R21、R22、R23、R24、R31、R32、R41、R42、R43、R51、R52、R53And R54 Represented C6-C14 aryl is preferably phenyl.C6-C14 aryl also can have at least one C1-C6 alkyl substituent (preferably It is 1 or 2).C1-C6 alkyl substituent possessed by C6-C14 aryl is preferably C1-C3 alkyl substituent, more preferably Methyl substituents or ethyl substituent.C6-C14 aryl at least one C1-C6 alkyl substituent is preferably 2- ethyl- 6- aminomethyl phenyl.
In general formula (ET1), R11And R12Preferably all indicate C1-C6 alkyl, more preferably expression C1-C5 alkyl, further Preferably indicate 1,1- dimethyl propyl.The preference of compound (ET1) be chemical formula (ET1-1) indicate compound (hereinafter, Sometimes referred to as compound (ET1-1)).
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In general formula (ET2), R21、R22、R23And R24Preferably all indicate C1-C6 alkyl, more preferably expression C1-C4 alkyl, Further preferably indicate methyl or tert-butyl.The preference of compound (ET2) is the compound that chemical formula (ET2-1) is indicated (hereinafter, sometimes referred to as compound (ET2-1)).
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In general formula (ET3), R31And R32It is respectively independent, it preferably indicates C6-C14 aryl or there is at least one C1-C6 The C6-C14 aryl of alkyl substituent more preferably indicates C6-C14 aryl or has 1 or 2 C1-C6 alkyl substituents C6-C14 aryl, further preferably expression 2- ethyl -6- aminomethyl phenyl.The preference of compound (ET3) is chemical formula (ET3-1) compound indicated (hereinafter, sometimes referred to as compound (ET3-1)).
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In general formula (ET4), R41And R42Preferably all indicate C1-C6 alkyl, more preferably expression isopropyl or tertiary fourth Base, particularly preferably expression tert-butyl.R in general formula (ET4)43Preferably indicate halogen atom, more preferably expression chlorine atom (chloro).The preference of compound (ET4) is the compound of chemical formula (ET4-1) expression (hereinafter, sometimes referred to as compound (ET4-1))。
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In general formula (ET5), R51、R52、R53And R54Preferably all indicate C1-C6 alkyl, more preferably expression C1-C4 alkyl, Further preferably indicate methyl or tert-butyl.The preference of compound (ET5) is the compound that chemical formula (ET5-1) is indicated (hereinafter, sometimes referred to as compound (ET5-1)).
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Electron transporting agent in photosensitive layer can only have compound (ET1), (ET2), (ET3), (ET4) or (ET5).Or Person, the electron transporting agent in photosensitive layer on the basis of containing compound (ET1), (ET2), (ET3), (ET4) or (ET5), The electron transporting agent other than compound (ET1), (ET2), (ET3), (ET4) and (ET5) can also further be contained.Relative to electricity The gross mass of sub- agent delivery, the content of compound (ET1), (ET2), (ET3), (ET4) or (ET5) be preferably 80 mass % with On, more preferably 90 mass % or more, particularly preferably 100 mass %.
In photosensitive layer, relative to 100 mass parts of binding resin, the content of electron transporting agent is preferably 5 mass parts or more 100 Below the mass, more preferably more than 10 mass parts 80 below the mass.
(cavity conveying agent)
Cavity conveying agent is, for example: (for example, N, N, N ', N '-tetraphenyl benzidine is derivative for triphenylamine derivative, diamine derivative Object, N, N, N ', N '-tetraphenyl phenylenediamine derivative, N, N, N ', N '-tetraphenyl naphthylenediamine derivative, N, N, N ', N '-tetraphenyl Phenanthrylene diamines (N, N, N ', N '-tetraphenyl phenanthrylene diamine) derivative or two (aminophenyls Vinyl) benzene derivative), furodiazole compound (for example, 2,5- bis- (4- methylamino phenyl) -1,3,4- oxadiazoles), benzene Ethylene compounds (for example, 9- (4- lignocaine styryl) anthracene), carbazole compound (for example, polyvinyl carbazole), Organopolysilane compound, pyrazoline compounds (for example, 1- phenyl -3- (to dimethylaminophenyl) pyrazoline), hydrazone class Compound, Benzazole compounds, dislike azole compounds, isoxazole class compound, thiazole compound, thiadiazole compound, Glyoxaline compound, pyrazole compound or triazole class compounds.Cavity conveying agent can be used alone, can also group Close two or more use.
In order to improve the wear resistance, resistance to marring and filming resistance of photoreceptor, cavity conveying agent is preferably general formula (HT1), the compound that (HT2) or (HT3) is indicated.The compound that general formula (HT1), (HT2) and (HT3) indicates is remembered respectively sometimes Carry is compound (HT1), (HT2) and (HT3).Compound (HT1), (HT2) and (HT3) can be used alone, can also be with Combine two or more use.
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In general formula (HT1), R111、R112And R113It is respectively independent, indicate C1-C6 alkyl, C1-C6 alkoxy or C6-C14 Aryl.b1、b2And b3It is respectively independent, indicate 0 or more 5 integer below.
In general formula (HT1), R111~R113It preferably indicates C1-C6 alkyl or C1-C6 alkoxy, more preferably indicates just Butyl or ethyoxyl.
b1In the case where indicating 2 or more 5 or less integers, several R111It each other can be identical or different.b2Indicate 2 or more 5 In the case where following integer, several R112It each other can be identical or different.b3In the case where indicating 2 or more 5 or less integers, if Dry R113It each other can be identical or different.b1、b2And b3It is respectively independent, preferably indicate 0 or 1.b1More preferably indicate 1.b2 And b3More preferably indicate 0.
R111~R113Binding site there is no particular limitation.R111~R113It respectively can be in conjunction with the neighbour in (being located at) phenyl Any position in position, meta position and contraposition.R111Preferably it is integrated to ortho position or the contraposition of phenyl.
The preference of compound (HT1) is the compound that indicates of following chemical formula (HT1-1) or (HT1-2) (hereinafter, having When be recorded as compound (HT1-1) or (HT1-2)).
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In general formula (HT2), R121、R122、R123、R124、R125And R126It is respectively independent, indicate C1-C6 alkyl or C1-C6 alkane Oxygroup.d1、d2、d5And d6It is respectively independent, indicate 0 or more 5 integer below.d3And d4It is respectively independent, indicate that 0 or more 4 is below Integer.
d1In the case where indicating 2 or more 5 or less integers, several R121It each other can be identical or different.d2Indicate 2 or more 5 In the case where following integer, several R122It each other can be identical or different.d3In the case where indicating 2 or more 4 or less integers, if Dry R123It each other can be identical or different.d4In the case where indicating 2 or more 4 or less integers, several R124It each other can be identical Or it is different.d5In the case where indicating 2 or more 5 or less integers, several R125It each other can be identical or different.d6Indicate 2 or more 5 with In the case where lower integer, several R126It each other can be identical or different.
In general formula (HT2), R121、R122、R123、R124、R125And R126It is respectively independent, preferably indicate C1-C6 alkyl, it is more excellent It is selected as indicating methyl.d1And d2In, preferably one indicates 1, another indicates 0.d5And d6In, preferably one indicates 1, separately One indicates 0.d3And d4Preferably all indicate 0.
The preference of compound (HT2) is the compound of following chemical formula (HT2-1) expression (hereinafter, sometimes referred to as changing It closes object (HT2-1)).
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In general formula (HT3), R131、R132、R133、R134、R135And R136It is respectively independent, indicate C1-C6 alkyl, C1-C6 alcoxyl Base, C6-C14 aryl or C2-C6 alkenyl.e1、e2、e3And e4It is respectively independent, indicate 0 or more 5 integer below.e5And e6Respectively From independence, 0 or more 4 integer below is indicated.
e1In the case where indicating 2 or more 5 or less integers, several R131It each other can be identical or different.e2Indicate 2 or more 5 In the case where following integer, several R132It each other can be identical or different.e3In the case where indicating 2 or more 5 or less integers, if Dry R133It each other can be identical or different.e4In the case where indicating 2 or more 5 or less integers, several R134It each other can be identical Or it is different.e1、e2、e3And e4It is respectively independent, preferably indicate 0 or more 2 integer below.e1And e2In, a more preferably table Show 2, another indicates 0 or 1 (preferably 0).e3And e4In, more preferably one indicates 2, another expression 0 or 1 is (preferably For 0).
R131~R134Binding site there is no particular limitation.R131~R134It respectively can be in conjunction with the neighbour in (being located at) phenyl Any position in position, meta position and contraposition.R131~R134Preferably it is each coupled to ortho position or the contraposition of phenyl.
e5In the case where indicating 2 or more 4 or less integers, several R135It each other can be identical or different.e6Indicate 2 or more 4 In the case where following integer, several R136It each other can be identical or different.e5And e6Preferably all indicate 0.
R135And R136Binding site there is no particular limitation.Relative to the nitrogen-atoms that phenylene is combined, R135And R136 It respectively can be incorporated into and (be located at) any position in ortho position and meta position.
In general formula (HT3), R131、R132、R133、R134、R135And R136Preferably all indicate C1-C6 alkyl, more preferably table Show methyl or ethyl.e1、e2、e3And e4It is respectively independent, preferably indicate 0 or more 2 integer below.e5And e6Preferably all table Show 0.
The preference of compound (HT3) is the compound of following chemical formula (HT3-1) expression (hereinafter, sometimes referred to as changing It closes object (HT3-1)).
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Cavity conveying agent in photosensitive layer can only have compound (HT1), (HT2) or (HT3).Alternatively, in photosensitive layer Cavity conveying agent contain compound (HT1), (HT2) or (HT3) on the basis of, can also further contain compound (HT1), the cavity conveying agent other than (HT2) and (HT3).Relative to the gross mass of cavity conveying agent, compound (HT1), (HT2) Or the content of (HT3) is preferably 80 mass % or more, more preferably 90 mass % or more, particularly preferably 100 mass %.
In photosensitive layer, relative to 100 mass parts of binding resin, the content of cavity conveying agent is preferably 10 mass parts or more 200 below the mass, and more than more preferably 10 mass parts 100 below the mass.
(combination of material)
In order to improve wear resistance, resistance to marring and filming resistance, cavity conveying agent, electron transporting agent, binding resin and filler Particle is preferably any one in following combination.Based on same consideration, preferably are as follows: cavity conveying agent, is glued at electron transporting agent Knot resin and filler particles are any one in following combination, and charge producing agent is Y-shaped oxygen titanium phthalocyanines.Based on similarly examining Consider, preferably also: cavity conveying agent, electron transporting agent, binding resin and filler particles are any one in following combination, electricity Lotus producing agent is X-type metal-free phthalocyanine.
Cavity conveying agent is compound (HT1-1), and electron transporting agent is compound (ET1-1), and filler particles are fillers Grain (F-1), binding resin is polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) In any one;
Cavity conveying agent is compound (HT1-2), and electron transporting agent is compound (ET1-1), and filler particles are filler particles (F- 1), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT2-1), and electron transporting agent is compound (ET1-1), and filler particles are filler particles (F- 1), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT3-1), and electron transporting agent is compound (ET1-1), and filler particles are filler particles (F- 1), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-1), and electron transporting agent is compound (ET2-1), and filler particles are filler particles (F- 1), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-2), and electron transporting agent is compound (ET2-1), and filler particles are filler particles (F- 1), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT2-1), and electron transporting agent is compound (ET2-1), and filler particles are filler particles (F- 1), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT3-1), and electron transporting agent is compound (ET2-1), and filler particles are filler particles (F- 1), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-1), and electron transporting agent is compound (ET3-1), and filler particles are filler particles (F- 1), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-2), and electron transporting agent is compound (ET3-1), and filler particles are filler particles (F- 1), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT2-1), and electron transporting agent is compound (ET3-1), and filler particles are filler particles (F- 1), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT3-1), and electron transporting agent is compound (ET3-1), and filler particles are filler particles (F- 1), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-1), and electron transporting agent is compound (ET4-1), and filler particles are filler particles (F- 1), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-2), and electron transporting agent is compound (ET4-1), and filler particles are filler particles (F- 1), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT2-1), and electron transporting agent is compound (ET4-1), and filler particles are filler particles (F- 1), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT3-1), and electron transporting agent is compound (ET4-1), and filler particles are filler particles (F- 1), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-1), and electron transporting agent is compound (ET5-1), and filler particles are filler particles (F- 1), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-2), and electron transporting agent is compound (ET5-1), and filler particles are filler particles (F- 1), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT2-1), and electron transporting agent is compound (ET5-1), and filler particles are filler particles (F- 1), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;Or
Cavity conveying agent is compound (HT3-1), and electron transporting agent is compound (ET5-1), and filler particles are filler particles (F- 1), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one.
Cavity conveying agent is compound (HT1-1), and electron transporting agent is compound (ET1-1), and filler particles are fillers Grain (F-2), binding resin is polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) In any one;
Cavity conveying agent is compound (HT1-2), and electron transporting agent is compound (ET1-1), and filler particles are filler particles (F- 2), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT2-1), and electron transporting agent is compound (ET1-1), and filler particles are filler particles (F- 2), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT3-1), and electron transporting agent is compound (ET1-1), and filler particles are filler particles (F- 2), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-1), and electron transporting agent is compound (ET2-1), and filler particles are filler particles (F- 2), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-2), and electron transporting agent is compound (ET2-1), and filler particles are filler particles (F- 2), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT2-1), and electron transporting agent is compound (ET2-1), and filler particles are filler particles (F- 2), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT3-1), and electron transporting agent is compound (ET2-1), and filler particles are filler particles (F- 2), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-1), and electron transporting agent is compound (ET3-1), and filler particles are filler particles (F- 2), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-2), and electron transporting agent is compound (ET3-1), and filler particles are filler particles (F- 2), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT2-1), and electron transporting agent is compound (ET3-1), and filler particles are filler particles (F- 2), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT3-1), and electron transporting agent is compound (ET3-1), and filler particles are filler particles (F- 2), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-1), and electron transporting agent is compound (ET4-1), and filler particles are filler particles (F- 2), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-2), and electron transporting agent is compound (ET4-1), and filler particles are filler particles (F- 2), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT2-1), and electron transporting agent is compound (ET4-1), and filler particles are filler particles (F- 2), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT3-1), and electron transporting agent is compound (ET4-1), and filler particles are filler particles (F- 2), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-1), and electron transporting agent is compound (ET5-1), and filler particles are filler particles (F- 2), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-2), and electron transporting agent is compound (ET5-1), and filler particles are filler particles (F- 2), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT2-1), and electron transporting agent is compound (ET5-1), and filler particles are filler particles (F- 2), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;Or
Cavity conveying agent is compound (HT3-1), and electron transporting agent is compound (ET5-1), and filler particles are filler particles (F- 2), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one.
Cavity conveying agent is compound (HT1-1), and electron transporting agent is compound (ET1-1), and filler particles are fillers Grain (F-3), binding resin is polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) In any one;
Cavity conveying agent is compound (HT1-2), and electron transporting agent is compound (ET1-1), and filler particles are filler particles (F- 3), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT2-1), and electron transporting agent is compound (ET1-1), and filler particles are filler particles (F- 3), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT3-1), and electron transporting agent is compound (ET1-1), and filler particles are filler particles (F- 3), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-1), and electron transporting agent is compound (ET2-1), and filler particles are filler particles (F- 3), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-2), and electron transporting agent is compound (ET2-1), and filler particles are filler particles (F- 3), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT2-1), and electron transporting agent is compound (ET2-1), and filler particles are filler particles (F- 3), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT3-1), and electron transporting agent is compound (ET2-1), and filler particles are filler particles (F- 3), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-1), and electron transporting agent is compound (ET3-1), and filler particles are filler particles (F- 3), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-2), and electron transporting agent is compound (ET3-1), and filler particles are filler particles (F- 3), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT2-1), and electron transporting agent is compound (ET3-1), and filler particles are filler particles (F- 3), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT3-1), and electron transporting agent is compound (ET3-1), and filler particles are filler particles (F- 3), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-1), and electron transporting agent is compound (ET4-1), and filler particles are filler particles (F- 3), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-2), and electron transporting agent is compound (ET4-1), and filler particles are filler particles (F- 3), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT2-1), and electron transporting agent is compound (ET4-1), and filler particles are filler particles (F- 3), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT3-1), and electron transporting agent is compound (ET4-1), and filler particles are filler particles (F- 3), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-1), and electron transporting agent is compound (ET5-1), and filler particles are filler particles (F- 3), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-2), and electron transporting agent is compound (ET5-1), and filler particles are filler particles (F- 3), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT2-1), and electron transporting agent is compound (ET5-1), and filler particles are filler particles (F- 3), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;Or
Cavity conveying agent is compound (HT3-1), and electron transporting agent is compound (ET5-1), and filler particles are filler particles (F- 3), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one.
Cavity conveying agent is compound (HT1-1), and electron transporting agent is compound (ET1-1), and filler particles are fillers Grain (F-4), binding resin is polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) In any one;
Cavity conveying agent is compound (HT1-2), and electron transporting agent is compound (ET1-1), and filler particles are filler particles (F- 4), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT2-1), and electron transporting agent is compound (ET1-1), and filler particles are filler particles (F- 4), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT3-1), and electron transporting agent is compound (ET1-1), and filler particles are filler particles (F- 4), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-1), and electron transporting agent is compound (ET2-1), and filler particles are filler particles (F- 4), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-2), and electron transporting agent is compound (ET2-1), and filler particles are filler particles (F- 4), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT2-1), and electron transporting agent is compound (ET2-1), and filler particles are filler particles (F- 4), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT3-1), and electron transporting agent is compound (ET2-1), and filler particles are filler particles (F- 4), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-1), and electron transporting agent is compound (ET3-1), and filler particles are filler particles (F- 4), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-2), and electron transporting agent is compound (ET3-1), and filler particles are filler particles (F- 4), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT2-1), and electron transporting agent is compound (ET3-1), and filler particles are filler particles (F- 4), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT3-1), and electron transporting agent is compound (ET3-1), and filler particles are filler particles (F- 4), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-1), and electron transporting agent is compound (ET4-1), and filler particles are filler particles (F- 4), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-2), and electron transporting agent is compound (ET4-1), and filler particles are filler particles (F- 4), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT2-1), and electron transporting agent is compound (ET4-1), and filler particles are filler particles (F- 4), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT3-1), and electron transporting agent is compound (ET4-1), and filler particles are filler particles (F- 4), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-1), and electron transporting agent is compound (ET5-1), and filler particles are filler particles (F- 4), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT1-2), and electron transporting agent is compound (ET5-1), and filler particles are filler particles (F- 4), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;
Cavity conveying agent is compound (HT2-1), and electron transporting agent is compound (ET5-1), and filler particles are filler particles (F- 4), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one;Or
Cavity conveying agent is compound (HT3-1), and electron transporting agent is compound (ET5-1), and filler particles are filler particles (F- 4), binding resin is appointing in polyarylate resin (R-1), (R-2), (R-3), (R-4), (R-5), (R-6), (R-7) and (R-8) Meaning one.
As described above, illustrating the preferred combination of cavity conveying agent, electron transporting agent, binding resin and filler particles.
(additive)
Additive is, for example: degradation inhibitor is (for example, antioxidant, radical scavenger, singlet state quencher or ultraviolet light Absorbent), softening agent, surface modifier, incremental agent, thickener, dispersion stabilizer, wax, receptor, donor, surfactant, can Mould agent, sensitizer or levelling agent.Antioxidant is, for example: hindered phenol (for example, di-tert-butyl p-cresol), hindered amine, to benzene Diamines, aromatic yl paraffin, hydroquinone, spiral shell benzodihydropyran (spirochroman), spiral shell indone (spiroindanone) or it Derivative;Or organosulfur compound or organic phosphorus compound.
<conductive base>
As long as conductive base can be used as the conductive base of photoreceptor, it is not particularly limited.Conductive base is only It at least its surface element to be formed by conductive material.One example of conductive base is: being formed by conductive material Conductive base.Conductive base another example is that by conductive material coat conductive base.Conductive material example If any: aluminium, iron, copper, tin, platinum, silver, vanadium, molybdenum, chromium, cadmium, titanium, nickel, palladium, indium, stainless steel or brass.These conductive materials (for example, as alloy) be may be used singly or in combination of two or more to use.In these conductive materials, by charge From the point of view of the good aspect of movement from photosensitive layer to conductive base, preferably aluminium or aluminium alloy.
The shape of conductive base can suitably be selected according to the structure of image forming apparatus.The shape of conductive base E.g.: sheet or drum type.In addition, the thickness of conductive base is suitably selected according to the shape of conductive base.
<middle layer>
Middle layer (priming coat) is for example containing inorganic particle and with resin (middle layer resin) in the intermediate layer.It can recognize Are as follows: by the presence of middle layer, it is able to maintain that can inhibit electric leakage occurs the state of insulation of this degree, while making exposure photoreceptor When the electric current flowing that generates it is smooth, inhibit the increase of resistance.
Inorganic particle is, for example: metal (for example, aluminium, iron or copper), metal oxide are (for example, titanium dioxide, oxidation Aluminium, zirconium oxide, tin oxide or zinc oxide) particle or nonmetal oxide (for example, silica) particle.These nothings Machine particle can be used alone, and two or more can also be used in combination.
As long as middle layer resin may be used for being formed the resin of middle layer, there is no particular limitation.Middle layer Various additives can also be contained.The example of additive is identical as the example of the additive in photosensitive layer.
<manufacturing method of photoreceptor>
One example of the manufacturing method of photoreceptor is illustrated.Photosensitive layer is coated on conductive base with coating fluid, By drying, photoreceptor is produced.By the way that charge producing agent, cavity conveying agent, electron transporting agent, filler particles, bonding are set Rouge and the ingredient being added as needed (for example, additive) dissolve or disperse in a solvent, to produce photosensitive layer coating fluid.
As long as the solvent contained in photosensitive layer coating fluid can dissolve or disperse each ingredient contained by coating fluid, It is not particularly limited.The example of solvent is: alcohols (for example, methanol, ethyl alcohol, isopropanol or butanol), aliphatic hydrocarbon (for example, N-hexane, octane or hexamethylene), aromatic hydrocarbon (for example, benzene, toluene or dimethylbenzene), halogenated hydrocarbon (for example, methylene chloride, Dichloroethanes, carbon tetrachloride or chlorobenzene), ethers is (for example, dimethyl ether, diethyl ether, tetrahydrofuran, glycol dimethyl ether, two sweet Diethylene glycol dimethyl ether or propylene glycol monomethyl ether), ketone (for example, acetone, methyl ethyl ketone or cyclohexanone), esters are (for example, acetic acid Ethyl ester or methyl acetate), dimethylformaldehyde, dimethylformamide or dimethyl sulfoxide.These solvents can be used alone One kind can also combine two or more use.In order to improve operability when manufacture photoreceptor, it is preferable to use non-halogenated Solvent (solvent other than halogenated hydrocarbon) is as solvent.
By being mixed and being distributed in solvent by each ingredient, to prepare coating fluid.For the behaviour for mixing or dispersing Make, can be used for example: ball mill, roller mill, ball mill, grater, paint shaker or ultrasonic dispersing machine.
In order to improve the dispersibility of each ingredient, photosensitive layer coating fluid can also for example contain surfactant.
As long as can be applied on even spread on conductive base using photosensitive layer with the method that coating fluid is coated The method of cloth liquid, there is no particular limitation.Coating method is, for example: dip coating, spray coating method, spin-coating method or stick coating method.
As long as the method that the solvent in coating fluid can be made to evaporate with the method that coating fluid is dried photosensitive layer is i.e. Can, there is no particular limitation.For example, being heat-treated the side of (heated-air drying) using high-temperature drier or pressure Reduction Dryer Method.Heat treatment condition is, for example, 40 DEG C or more 150 DEG C of temperature below and 3 minutes or more the 120 minutes time below.
In addition, in the manufacturing method of photoreceptor, can also further include as needed the process to form middle layer and One or two of the process for forming protective layer process.It in the process for forming middle layer and is formed in the process of protective layer, is fitted When the well-known method of selection.
<image forming apparatus>
Next, being said referring to Fig. 2 to the image forming apparatus 110 for having photoreceptor 100 involved in present embodiment It is bright.Fig. 2 is an example of the structure of image forming apparatus 110, which has involved by present embodiment Photoreceptor 100.Image forming apparatus 110 in Fig. 2 uses direct transfer modes.In addition, using the figure of intermediate transfer mode It is described as forming device 110 later herein with reference to Fig. 3.
As long as the image forming apparatus of 110 electrofax mode of image forming apparatus, is not particularly limited.Figure It for example can be monochrome image formation device as forming device 110, be also possible to color image forming device.It is formed and is filled in image In the case where setting 110 and being color image forming device, image forming apparatus 110 is for example, by using series system.Hereinafter, with series connection side It is illustrated for the image forming apparatus 110 of formula.
Image forming apparatus 110 has image forming unit 40a, 40b, 40c and 40d, is also equipped with transfer belt 50 and fixing Portion 52.Hereinafter, image forming unit 40a, 40b, 40c and 40d are recorded as image and form list in the case where needing not distinguish between Member 40.In addition, image forming apparatus 110 has image in the case where image forming apparatus 110 is that monochrome image forms device Unit 40a is formed, and image forming unit 40b~40d is omitted.
Image forming unit 40 has photoreceptor 100, electro-mechanical part 42, exposure portion 44,46 and of development section of present embodiment Transfer section 48.In the central location of image forming unit 40, photoreceptor 100 is set.Photoreceptor 100 is arranged to can be along arrow side It is rotated to (counterclockwise).Around photoreceptor 100, on the basis of electro-mechanical part 42, from the direction of rotation upstream side of photoreceptor 100 Start to set gradually electro-mechanical part 42, exposure portion 44, development section 46 and transfer section 48.In addition, in image forming unit 40, it can also To be further equipped with one or both of cleaning section (not shown) and de-power unit (not shown).
It is positive polarity that electro-mechanical part 42, which charges the surface (circumferential surface) of photoreceptor 100,.Electro-mechanical part 42 be cordless or The way of contact.The example of the electro-mechanical part 42 of cordless is corona tube charger or grid corona tube charger.Contact side The example of the electro-mechanical part 42 of formula is charged roller or with brush.
Electro-mechanical part 42 is applied to the voltage of photoreceptor 100, and there is no particular limitation.Electro-mechanical part 42 is applied to photoreceptor 100 Voltage is, for example, DC voltage, alternating voltage or overlapping voltage.Overlapping voltage is that alternating voltage has been superimposed on DC voltage Voltage.Preferably electro-mechanical part 42 applies DC voltage to photoreceptor 100.The reason for this is that: in 42 application direct currents of electro-mechanical part In the case where pressure, the abrasion loss of photosensitive layer 102 is often reduced.The DC voltage that electro-mechanical part 42 is applied to photoreceptor 100 is preferred For 1000V or more 2000V hereinafter, more preferably 1200V or more 1800V is hereinafter, particularly preferably 1400V or more 1600V or less.
The surface of the photoreceptor 100 of 44 pairs of exposure portion electrifications is exposed.It is formed on the surface of photoreceptor 100 as a result, Electrostatic latent image.Based on the image data being input in image forming apparatus 110, electrostatic latent image is formed.
Toner is supplied to the electrostatic latent image being formed on photoreceptor 100 by development section 46.Electrostatic latent image is developed as a result, For toner image.Photoreceptor 100 is equivalent to the picture supporting body of carrying toner image.Toner, which can be used as monocomponent toner, to be made With.Alternatively, toner can also be mixed with required carrier, toner is used in two-component developing agent.It is mixing colours In the case that agent is used as monocomponent toner, the toner as monocomponent toner is supplied to and is formed in by development section 46 Electrostatic latent image on photoreceptor 100.In the case where toner is in two-component developing agent, tune contained by two-component developing agent In toner and carrier, toner is supplied to the electrostatic latent image being formed on photoreceptor 100 by development section 46.
The conveying recording medium P between photoreceptor 100 and transfer section 48 of transfer belt 50.Transfer belt 50 is endless belt.Transfer Band 50 is set as can rotation (clockwise) in the direction of the arrow.
After toner image is developed by development section 46, transfer section 48 toner image is transferred to from photoreceptor 100 by On transfer article.In the case where image forming apparatus 110 is using direct transfer modes, recording medium P is equivalent to transfer printing body.? In the case that image forming apparatus 110 uses direct transfer modes, when toner image is transferred to recording medium P from photoreceptor 100, Photoreceptor 100 is contacted with recording medium P.Transfer section 48 is, for example, transfer roll.
The toner image of several color (for example, black, cyan, magenta and yellow these four colors) is successively by image Unit 40a~40d is formed to be added on the recording medium P in transfer belt 50.
Fixing section 52 is heated and/or is pressurizeed to the unfixing toner picture that transfer section 48 is transferred on recording medium P. Fixing section 52 is, for example, heating roller and/or pressure roller.By being heated and/or being pressurizeed to toner image, determine toner image On shadow to recording medium P.As a result, forming image on recording medium P.
In addition, image forming apparatus 110 can also use intermediate transfer mode.Hereinafter, turning referring to Fig. 3 to using intermediate The image forming apparatus 110 of India side formula is illustrated.Fig. 3 is another example of the structure of image forming apparatus 110, the image It forms device 110 and has photoreceptor 100 involved in present embodiment.In order to avoid unnecessary repetition, for in Fig. 2 The identical structure of the structure of image forming apparatus 110, identical symbol on label, and the description thereof will be omitted.
In the case where image forming apparatus 110 is using intermediate transfer mode, primary transfer portion 54 and secondary transfer section 58 It is equivalent to the transfer section 48 illustrated in direct transfer modes.The case where image forming apparatus 110 is using intermediate transfer mode Under, intermediate transfer belt 56 and recording medium P are equivalent to transfer printing body.Primary transfer portion 54 by primary transfer bias (specifically, The opposite polarity bias of the electrification of polarity and toner) it is applied on intermediate transfer belt 56.Intermediate transfer belt 56 is endless belt.In Between transfer belt 56 rotated along arrow (counterclockwise) direction.When applying primary transfer bias, in photoreceptor 100 and primary transfer Between portion 54, it is formed in the toner image on the surface of photoreceptor 100 and transfers (primary transfer) from photoreceptor 100 to centre turn It prints on band 56.
Secondary transfer printing bias (specifically, the polarity bias opposite with toner image) is applied to note by secondary transfer section 58 On recording medium P.As a result, being transferred on intermediate transfer belt 56 between secondary transfer section 58 and intermediate transfer belt 56 Toner image transfers on (secondary transfer printing) to recording medium P from intermediate transfer belt 56.Unfixed toner image transfer as a result, Onto recording medium P.
As described above, referring to the image forming apparatus of Fig. 2 and Fig. 3 photoreceptor 100 for illustrating to have present embodiment 110。
<handle box>
Next, being illustrated with continued reference to Fig. 2 and Fig. 3 to the handle box for the photoreceptor 100 for having present embodiment.Processing Box is the handle box of image formation.Each of image forming unit 40a~40d is equivalent to handle box.Handle box has Integrated photoreceptor 100.Handle box is also integrated with electro-mechanical part 42, exposure portion 44, development on the basis of photoreceptor 100 At least one of portion 46 and transfer section 48 (or primary transfer portion 54) structure.In handle box, it can also be further equipped with One or both of cleaning section (not shown) and de-power unit (not shown).It, can also be using the electric mode of release in handle box.Place Reason box is designed to detachable relative to image forming apparatus 110.Therefore, handle box is easily processed, in the sensitivity of photoreceptor 100 In the case that characteristic etc. deteriorates, can easily and rapidly it replace comprising the handle box including photoreceptor 100.As described above, Referring to the handle box of Fig. 2 and Fig. 3 photoreceptor 100 for illustrating to have present embodiment.
[embodiment]
Hereinafter, carrying out more specific description to the present invention using embodiment.But the present invention is not defined in any way The range of embodiment.
<material for being used to form photosensitive layer>
Prepare charge producing agent, cavity conveying agent, electron transporting agent, filler particles and binding resin below, as shape At the material of the photosensitive layer of photoreceptor.
(charge producing agent)
Prepare the X-type metal-free phthalocyanine that chemical formula (CG-1) described in embodiment indicates, as charge producing agent.In addition, Prepare the Y-shaped oxygen titanium phthalocyanines that chemical formula (CG-2) described in embodiment indicates, as charge producing agent.
(cavity conveying agent)
Prepare compound (HT1-1), (HT1-2), (HT2-1) and (HT3-1) described in embodiment, as cavity conveying Agent.
(electron transporting agent)
Prepare compound (ET1-1), (ET2-1), (ET3-1), (ET4-1) and (ET5-1) described in embodiment, as electricity Sub- agent delivery.
(filler particles)
Prepare filler particles (F-1)~(F-6) in table 1, as filler particles.In table 1, D50Indicate the volume of filler particles Meso-position radius.Filler particles (F-1)~(F-6) is spherical.In addition, " AEROSIL " and " NanoTek " in table 1 is Japan Registered trademark.
[table 1]
(binding resin)
Polyarylate resin (R-1)~(R-8) described in embodiment is made, as binding resin.
[manufacture of polyarylate resin (R-2)]
Use three-necked flask as reaction vessel.The reaction vessel is the appearance for having thermometer, triple valve and 200mL dropping funel Measure 1L three-necked flask.It is put into bis- (the 4- hydroxy-3-methyl phenyl) hexamethylenes of 1,1- in the reaction vessel (described in embodiment Compound (1-p)) 12.24g (41.28 mMs), tert-butyl phenol 0.062g (0.413 mM), sodium hydroxide 3.92g (98 mMs) and benzyl tributyl ammonium chloride 0.120g (0.384 mM).Then, it is replaced in reaction vessel using argon gas Air.Then, water 300mL is placed into reaction vessel.The internal temperature of reaction vessel is set to be increased to 50 DEG C.By reaction vessel Internal temperature be maintained at 50 DEG C, stirring in 1 hour is carried out to the content in reaction vessel.Then, make the interior of reaction vessel Portion's temperature is cooled to 10 DEG C.As a result, obtaining alkaline aqueous solution.
On the other hand, make 2,6- naphthalene, two formyl dichloro (2,6-Naphthalene dicarbonyl dichloride) (real Apply the dicarboxylic acid dichloride of compound described in mode (1-jj)) 4,4 '-dicarboxyl of 4.10g (16.2 mMs) and biphenyl- (16.2 mMs) of 4.52g of acid dichlorides (dicarboxylic acid dichloride of compound described in embodiment (1-h)) dissolutions In chloroform 150mL.Chloroform soln is obtained as a result,.
Then, using dropping funel, chloroform soln was slowly dropped in alkaline aqueous solution in the used time 110 minutes, is opened Beginning polymerization reaction.Internal temperature in reaction vessel is adjusted to 15 ± 5 DEG C, the content of reaction vessel is carried out 4 hours Stirring carries out polymerization reaction.
Then, using the upper layer (water layer) in the content of decanter removal reaction vessel, organic layer is obtained.Then, exist It is put into the three-necked flask of capacity 1L after ion exchange water 400mL, is put into gained organic layer.Place into chloroform 400mL With acetic acid 2mL.The content of three-necked flask is stirred 30 minutes under room temperature (25 DEG C).Then, three mouthfuls are removed using decanter Upper layer (water layer) in the content of flask, obtains organic layer.Using water 1L, gained organic layer is carried out 5 times with separatory funnel Cleaning.As a result, the organic layer after being washed.
Next, being filtered to the organic layer after washing, filtrate is obtained.In the conical flask of capacity 1L, it is put into first Alcohol 1L.Gained filtrate is slowly dropped in conical flask, sediment is obtained.Sediment is filtered out by filtering.Gained is sunk Starch is dried in vacuo 12 hours under temperature 70 C.As a result, obtaining polyarylate resin (R-2).The production of polyarylate resin (R-2) Amount is 12.2g, and yield is 77mol%.The viscosity average molecular weigh of polyarylate resin (R-2) is 46,000.
[manufacture of polyarylate resin (R-1) and (R-3)~(R-8)]
Except change other than, according to the manufacturing method of polyarylate resin (R-2), polyarylate resin (R-1) is manufactured respectively (R-3)~(R-8).
In the manufacture of polyarylate resin (R-1), dicarboxylic acid dichloride's (16.2 mMs) of compound (1-k) is used With dicarboxylic acid dichloride's (16.2 mMs) of compound (1-1), to replace 2,6- naphthalene, two formyl dichloro (2,6- Naphthalene dicarbonyl dichloride) (16.2 mMs) and 4,4 '-dicarboxylic acid dichloride (16.2 of biphenyl- MM).The viscosity average molecular weigh of gained polyarylate resin (R-1) is 35300.
In the manufacture of polyarylate resin (R-3), dicarboxylic acid dichloride's (32.4 mmoles of compound (1-g) are used You), to replace 2,6- naphthalene, two formyl dichloro (2,6-Naphthalene dicarbonyl dichloride) (16.2 mMs) With 4,4 '-dicarboxylic acid dichloride of biphenyl-(16.2 mMs).The viscosity average molecular weigh of gained polyarylate resin (R-3) is 36600。
In the manufacture of polyarylate resin (R-4), dicarboxylic acid dichloride's (16.2 mMs) of compound (1-g) is used With dicarboxylic acid dichloride's (16.2 mMs) of compound (1-jj), to replace 2,6- naphthalene, two formyl dichloro (2,6- Naphthalene dicarbonyl dichloride) (16.2 mMs) and 4,4 '-dicarboxylic acid dichloride (16.2 of biphenyl- MM).The viscosity average molecular weigh of gained polyarylate resin (R-4) is 34400.
In the manufacture of polyarylate resin (R-5), dicarboxylic acid dichloride's (16.2 mMs) of compound (1-g) is used With dicarboxylic acid dichloride's (16.2 mMs) of compound (1-h), to replace 2,6- naphthalene, two formyl dichloro (2,6- Naphthalene dicarbonyl dichloride) (16.2 mMs) and 4,4 '-dicarboxylic acid dichloride (16.2 of biphenyl- MM).The viscosity average molecular weigh of gained polyarylate resin (R-5) is 35600.
In the manufacture of polyarylate resin (R-6), dicarboxylic acid dichloride's (32.4 mmoles of compound (1-i) are used You), to replace 2,6- naphthalene, two formyl dichloro (2,6-Naphthalene dicarbonyl dichloride) (16.2 mMs) With 4,4 '-dicarboxylic acid dichloride of biphenyl-(16.2 mMs).The viscosity average molecular weigh of gained polyarylate resin (R-6) is 35800。
In the manufacture of polyarylate resin (R-7), dicarboxylic acid dichloride's (16.2 mMs) of compound (1-i) is used With dicarboxylic acid dichloride's (16.2 mMs) of compound (1-jj), to replace 2,6- naphthalene, two formyl dichloro (2,6- Naphthalene dicarbonyl dichloride) (16.2 mMs) and 4,4 '-dicarboxylic acid dichloride (16.2 of biphenyl- MM).The viscosity average molecular weigh of gained polyarylate resin (R-7) is 34000.
In the manufacture of polyarylate resin (R-8), dicarboxylic acid dichloride's (9.7 mMs) of compound (1-g) is used With dicarboxylic acid dichloride's (22.7 mMs) of compound (1-jj), to replace 2,6- naphthalene, two formyl dichloro (2,6- Naphthalene dicarbonyl dichloride) (16.2 mMs) and 4,4 '-dicarboxylic acid dichloride (16.2 of biphenyl- MM).The viscosity average molecular weigh of gained polyarylate resin (R-8) is 33600.
Next, using proton NMR spectrometer (Japan Spectroscopy Corporation manufactures, 300MHz), manufactured by measurement Polyarylate resin (R-1)~(R-8)1H-NMR map.Use CDCl3As solvent.Use tetramethylsilane (TMS) as Internal standard compound.Wherein, with polyarylate resin (R-2), (R-4) and (R-5) for typical example.
Fig. 4~Fig. 6 respectively indicates polyarylate resin (R-2), (R-4) and (R-5)1H-NMR map.In Fig. 4~Fig. 6, Horizontal axis indicates chemical shift (unit: ppm), and the longitudinal axis indicates signal strength (unit: arbitrary unit).Pass through1H-NMR map, really Polyarylate resin (R-2), (R-4) and (R-5) is recognized.For polyarylate resin (R-1), (R-3) and (R-6)~(R-8) It is also equally, to pass through1H-NMR map, confirmation has obtained polyarylate resin (R-1), (R-3) and (R-6)~(R-8) respectively.
The polycarbonate resin of following chemical formula (R-A)~(R-C) expression is also prepared for (hereinafter, sometimes referred to as poly- carbonic acid Ester resin (R-A)~(R-C)), as binding resin.In addition, being also prepared for the poly- virtue of following chemical formula (R-D)~(R-F) expression Ester resin (hereinafter, sometimes referred to as polyarylate resin (R-D)~(R-F)), as binding resin.Polycarbonate resin (R-A) ~(R-C) and polyarylate resin (R-D)~(R-F) viscosity average molecular weigh be 31000 respectively, 32500,33000,34500, 33200 and 32400.In addition, the subscript of repetitive unit refers in chemical formula (R-A)~(R-F): relative to weight contained by resin The amount (total mole number) of the total material of multiple unit, the percentage of the amount (molal quantity) of the substance of the repetitive unit of subscripting.
[changing 43]
[changing 44]
[changing 45]
[changing 46]
[changing 47]
[changing 48]
<manufacture of photoreceptor>
Using the material for being used to form photosensitive layer, photoreceptor (A-1)~(A-22) and (B-1)~(B-9) is manufactured.
(manufacture of photoreceptor (A-1))
In the container of ball mill, it is added as 5 mass parts of X-type metal-free phthalocyanine of charge producing agent, as cavity conveying agent 50 mass parts of compound (HT1-1), as 35 mass parts of compound (ET1-1) of electron transporting agent, as binding resin 100 mass parts of polyarylate resin (R-1), 5 mass parts of filler particles (F-1) and 750 mass parts of tetrahydrofuran.Using ball mill, Content is mixed and is dispersed 50 hours, the coating fluid of photosensitive layer is prepared.By dip coating, gained coating fluid is coated on On conductive base, film is formed on conductive base.The heating for carrying out 40 minutes to film at 100 DEG C, from film Except tetrahydrofuran.The photosensitive layer (film thickness: 35 μm) of single layer is formed on conductive base as a result,.As a result, obtaining photoreceptor (A-1)。
(manufacture of photoreceptor (A-2)~(A-22) and (B-1)~(B-9))
Other than the change of following (1)~(8), according to the manufacturing method of photoreceptor (A-1), photoreceptor (A-2) is manufactured respectively ~(A-22) and (B-1)~(B-9).
(1) in the manufacture of photoreceptor (A-1), use X-type metal-free phthalocyanine as charge producing agent, but at photoreceptor (A-2) In~(A-22) and the respective manufacture of (B-1)~(B-9), the charge producing agent in table 2 and table 3 is used.
(2) in the manufacture of photoreceptor (A-1), use compound (HT1-1) as cavity conveying agent, but at photoreceptor (A-2) In~(A-22) and the respective manufacture of (B-1)~(B-9), the cavity conveying agent in table 2 and table 3 is used.
(3) in the manufacture of photoreceptor (A-1), use compound (ET1-1) as electron transporting agent, but at photoreceptor (A-2) In~(A-22) and the respective manufacture of (B-1)~(B-9), the electron transporting agent in table 2 and table 3 is used.
(4) in the manufacture of photoreceptor (A-1), use polyarylate resin (R-1) as binding resin, but at photoreceptor (A-2) In~(A-22) and the respective manufacture of (B-1)~(B-9), the binding resin in table 2 and table 3 is used.
(5) in the manufacture of photoreceptor (A-1), using filler particles (F-1), but in photoreceptor (A-2)~(A-22) and (B-1) In the respective manufacture of~(B-9), the filler particles in table 2 and table 3 are used.
(6) in the manufacture of photoreceptor (A-1), the filler particles (F-1) of 5 mass parts are added, but in the system of photoreceptor (A-20) In making, the filler particles (F-1) of 10 mass parts are added.As a result, relative to the quality of photosensitive layer, the contents of filler particles is from photosensitive 2.6 mass % in the manufacture of body (A-1) become 5.0 mass %.
(7) in the manufacture of photoreceptor (A-1), the filler particles (F-1) of 5 mass parts are added, but in the system of photoreceptor (A-21) In making, the filler particles (F-1) of 20 mass parts are added.As a result, relative to the quality of photosensitive layer, the contents of filler particles is from photosensitive 2.6 mass % in the manufacture of body (A-1) become 9.5 mass %.
(8) in the manufacture of photoreceptor (A-1), the filler particles (F-1) of 5 mass parts are added, but in the system of photoreceptor (A-22) In making, the filler particles (F-1) of 23.5 mass parts are added.As a result, relative to the quality of photosensitive layer, the contents of filler particles is from sense 2.6 mass % in the manufacture of body of light (A-1) become 11.0 mass %.
<evaluation of wear resistance>
For each of photoreceptor (A-1)~(A-22) and (B-1)~(B-9), wear resistance is evaluated.Wear resistance is evaluation It is carried out in the environment of 23 DEG C of temperature and relative humidity 50%RH.Use printer (FS-C5250DN, kyocera office information system Co., Ltd.'s manufacture) it is used as valuator device.Valuator device has charged roller as electro-mechanical part.Charged roller is by charging property rubber (epichlorohydrin resin for specifically, having dispersed conductive carbon) is constituted.The electrification polarity of electro-mechanical part is positive polarity, electro-mechanical part Applying voltage is DC voltage.In addition, valuator device uses intermediate transfer mode.
Firstly, the photosensitive layer thickness (T of measurement photoreceptor1, unit μm).Then, photoreceptor is installed in valuator device, In-service evaluation equipment continuous printing image I (character image of printing coverage rate 5%) on 50,000 paper.Then, 50,000 After the printing opened, the photosensitive layer thickness (T of photoreceptor is measured2, unit μm).Then, according to the calculation formula " abrasion of photosensitive layer Amount=T1-T2", find out the abrasion loss (unit: μm) of photosensitive layer.In addition, photosensitive layer thickness passes through eddy current film thickness gauge (Kett Electric Laboratory manufacture " LH-373 ") it measures.The abrasion loss of gained photosensitive layer indicates in table 2 and table 3. The abrasion loss of photosensitive layer is fewer, indicates that the wear resistance of photoreceptor is more excellent.
<evaluation of resistance to marring and filming resistance>
For each of photoreceptor (A-1)~(A-22) and (B-1)~(B-9), resistance to marring and filming resistance are evaluated.For Evaluation resistance to marring and the valuator device of filming resistance are identical as evaluating the valuator device of wear resistance.Photoreceptor is installed Into valuator device.In-service evaluation equipment, under ambient temperature and moisture environment (environment of 23 DEG C of temperature and relative humidity 50%RH), Continuous printing image I (character image of printing coverage rate 5%) on 50000 paper.After printing 50,000 image I, 1 Printed on paper image II (containing half tone image and white background image in image) is opened, the evaluation obtained under ambient temperature and moisture environment is used Image.Next, under low temperature and low humidity environment (environment of 10 DEG C of temperature and relative humidity 20%RH), on 50,000 paper Continuous printing image I.After printing 50,000 image I, in 1 printed on paper image II, obtain under low temperature and low humidity environment Image is used in evaluation.
Then, photoreceptor is taken out from valuator device.The surface of photoreceptor is visually observed, is confirmed on the surface of photoreceptor Either with or without generation scratch and film forming phenomenon.In addition, observing the evaluation image and low temperature and low humidity ring under ambient temperature and moisture environment respectively Evaluation image under border, confirmation is either with or without generation image failure as caused by scratch and film forming phenomenon.In addition, in photoreceptor After generating film forming phenomenon on surface, the image failure of striped and hyphen wire tag etc will be generated on being formed by image. Striped refers to the image failure for occurring being parallel to the black line in image printing direction.Hyphen wire tag, which refers to, there is being parallel to image print Brush the image failure of the stain of direction arrangement.In addition, after generating scratch on the surface of photoreceptor, on being formed by image just One or both of informal voucher line and black streaking can be generated.According to confirmation as a result, evaluating the anti-zoned of photoreceptor according to following benchmark Wound property and filming resistance.The evaluation result of resistance to marring and filming resistance indicates in table 2 and table 3.
(evaluation criteria of resistance to marring and filming resistance)
It evaluates A (especially good): on the surface of photoreceptor, absolutely not generating scratch and film forming phenomenon.In addition, in ambient temperature and moisture On evaluation image under environment and low temperature and low humidity environment, image failure is all not observed.
Evaluate B (good): on the surface of photoreceptor, in scratch and film forming phenomenon, at least one of problem has a small amount of appearance.But It is that on the evaluation image under ambient temperature and moisture environment and low temperature and low humidity environment, image failure is all not observed.
It evaluates C (poor): on the surface of photoreceptor, in scratch and film forming phenomenon, one of problem at least occurs.In low temperature On evaluation image under low moisture environments, image failure is observed.But on the evaluation image under ambient temperature and moisture environment, Image failure is not observed.
It evaluates D (particularly poor): on the surface of photoreceptor, in scratch and film forming phenomenon, one of problem at least occurs.Also Have, on the evaluation image under ambient temperature and moisture environment and low temperature and low humidity environment, all observes image failure.
In table 2 and table 3, it is defeated that CGM, HTM, ETM, resin and wt% respectively indicate charge producing agent, cavity conveying agent, electronics Send agent, binding resin and quality %.In table 2 and table 3, CG-1 and CG-2 respectively indicate X-type metal-free phthalocyanine and Y-shaped oxygen titanium phthalein Cyanines.In table 2 and table 3, content indicates content (unit: quality %) of the filler particles relative to photosensitive layer quality.Filler particles phase The content of photosensitive layer quality is calculated by following calculation formula.
Filler particles relative to photosensitive layer quality content=(quality of filler particles)/(quality+hole of charge producing agent is defeated Send quality+electron transporting agent quality+binding resin quality+filler particles quality of agent)
[table 2]
[table 3]
Photoreceptor (A-1)~(A-22) has the photosensitive layer of conductive base and single layer.Photosensitive layer contains charge generation Agent, cavity conveying agent, electron transporting agent, filler particles and binding resin.Filler particles contain resin particle.Binding resin contains Polyarylate resin (1).Therefore, as in table 2 and table 3, photoreceptor (A-1)~(A-22) abrasion loss is few, and wear resistance is excellent It is different.In addition, in photoreceptor (A-1)~(A-22), the evaluation result of resistance to marring and filming resistance is A (especially good) and B (good), Resistance to marring and filming resistance are excellent.
On the other hand, in photoreceptor (B-1)~(B-6), binding resin is free of polyarylate resin (1).Therefore, as in table 3 Like that, photoreceptor (B-1)~(B-6) abrasion loss is more, and wear resistance is poor.
In photoreceptor (B-7) and (B-8), filler particles are free of resin particle.Specifically, photoreceptor (B-7) and (B-8) In, photosensitive layer contains filler particles (F-5) or (F-6), and filler particles (F-5) and (F-6) they are not resin particles.Therefore, As in table 3, the abrasion loss of photoreceptor (B-7) and (B-8) are more, and wear resistance is poor.In addition, photoreceptor (B-7) and (B-8) In, the evaluation result of resistance to marring and filming resistance is D (particularly poor), and resistance to marring and filming resistance are poor.
The photosensitive layer of photoreceptor (B-9) is free of filler particles.Therefore, as in table 3, the abrasion loss of photoreceptor (B-9) More, wear resistance is poor.In addition, the evaluation result of resistance to marring and filming resistance is C (poor), resistance to marring in photoreceptor (B-9) It is poor with filming resistance.
In conclusion photosensitive body surface according to the present invention reveals excellent wear resistance, resistance to marring and filming resistance. In addition, handle box according to the present invention and image forming apparatus show to be able to suppress figure by having above-mentioned photoreceptor As the generation of failure.
(industry utilizability)
Photoreceptor according to the present invention can be used in image forming apparatus.Handle box and image according to the present invention Forming device can be used in forming image on the recording medium.

Claims (15)

1. a kind of Electrophtography photosensor,
Have conductive base and photosensitive layer,
The photosensitive layer is single layer,
The photosensitive layer contains charge producing agent, cavity conveying agent, electron transporting agent, filler particles and binding resin,
The filler particles contain resin particle,
The binding resin contains the polyarylate resin of the following general formula (1) expression,
[changing 1]
In the general formula (1),
Kr and kt is respectively independent, indicates 2 or 3,
R and s is respectively independent, indicates 0 or more 49 number below,
T and u is respectively independent, indicates 1 or more 50 number below,
R+s+t+u=100,
R+t=s+u,
X and Y is respectively independent, is that following chemical formula (1-1), (1-2), (1-3), (1-4), (1-5), (1-6) or (1-7) is indicated Bilvalent radical,
[changing 2]
2. Electrophtography photosensor according to claim 1, which is characterized in that
The Volume Median diameter of the resin particle is 0.05 μm or more 5.00 μm or less.
3. Electrophtography photosensor according to claim 1, which is characterized in that
Relative to the quality of the photosensitive layer, the content of the resin particle be greater than 0.0 mass % and be 10.0 mass % with Under.
4. Electrophtography photosensor according to claim 1, which is characterized in that
The resin particle is spherical.
5. Electrophtography photosensor according to claim 1, which is characterized in that
In the general formula (1), r and s are not that 0, X and Y are different from each other, and s/ (s+u) is 0.30 or more 0.70 hereinafter, having in X and Y One be the chemical formula (1-1) indicate the bilvalent radical.
6. Electrophtography photosensor according to claim 5, which is characterized in that
In the general formula (1), the other is the bilvalent radical that the chemical formula (1-2) indicates in X and Y.
7. Electrophtography photosensor according to claim 1, which is characterized in that
In the general formula (1), r and s are 0, t and u be 50, Y is the bilvalent radical that the chemical formula (1-3) is indicated.
8. Electrophtography photosensor according to claim 1, which is characterized in that
In the general formula (1), r and s are not that 0, X and Y are different from each other, and s/ (s+u) is 0.30 or more 0.70 hereinafter, in X and Y, One be the chemical formula (1-3) indicate the bilvalent radical, the other is the chemical formula (1-4) indicate the divalent Base.
9. Electrophtography photosensor according to claim 1, which is characterized in that
In the general formula (1), r and s are not that 0, X and Y are different from each other, and s/ (s+u) is 0.30 or more 0.70 hereinafter, s and u is indicated Number different from each other.
10. Electrophtography photosensor according to claim 1, which is characterized in that
The polyarylate resin that the general formula (1) indicates is following chemical formula (R-1), (R-2), (R-3), (R-4), (R-5), (R- 6), the polyarylate resin that (R-7) or (R-8) is indicated,
[changing 3]
[changing 4]
[changing 5]
[changing 6]
[changing 7]
[changing 8]
[changing 9]
[changing 10]
11. Electrophtography photosensor according to claim 1, which is characterized in that
The electron transporting agent contains the compound of the following general formula (ET1), (ET2), (ET3), (ET4) or (ET5) expression,
[changing 11]
[changing 12]
[changing 13]
[changing 14]
[changing 15]
In the general formula (ET1), (ET2), (ET3), (ET4) and (ET5), R11、R12、R21、R22、R23、R24、R31、R32、R41、 R42、R43、R51、R52、R53And R54It is respectively independent, indicate hydrogen atom, halogen atom, cyano, C1-C6 alkyl, C2-C6 alkenyl, C1-C6 alkoxy, C6-C14 aryl or the C6-C14 aryl at least one C1-C6 alkyl substituent.
12. Electrophtography photosensor according to claim 1, which is characterized in that
The cavity conveying agent contains the compound of the following general formula (HT1), (HT2) or (HT3) expression,
[changing 16]
In the general formula (HT1), R111、R112And R113It is respectively independent, indicate C1-C6 alkyl, C1-C6 alkoxy or C6-C14 Aryl, b1、b2And b3It is respectively independent, indicate 0 or more 5 integer below,
[changing 17]
In the general formula (HT2), R121、R122、R123、R124、R125And R126It is respectively independent, indicate C1-C6 alkyl or C1-C6 alkane Oxygroup, d1、d2、d5And d6It is respectively independent, indicate 0 or more 5 integer below, d3And d4It is respectively independent, indicate that 0 or more 4 is below Integer,
[changing 18]
In the general formula (HT3), R131、R132、R133、R134、R135And R136It is respectively independent, indicate C1-C6 alkyl, C1-C6 alcoxyl Base, C6-C14 aryl or C2-C6 alkenyl, e1、e2、e3And e4It is respectively independent, indicate 0 or more 5 integer below, e5And e6Respectively From independence, 0 or more 4 integer below is indicated.
13. a kind of handle box,
Has Electrophtography photosensor described in claim 1.
14. a kind of image forming apparatus, has:
Electrophtography photosensor;
Electro-mechanical part charges the surface of the Electrophtography photosensor;
Exposure portion is exposed the surface of the Electrophtography photosensor of electrification, in the Electrophtography photosensor The surface on form electrostatic latent image;
The latent electrostatic image developing is toner image by development section;And
The toner image is transferred on transfer printing body by transfer section from the Electrophtography photosensor,
Described image forms device and is characterized in that,
It is positive polarity that the electro-mechanical part, which charges the surface of the Electrophtography photosensor,
The Electrophtography photosensor is Electrophtography photosensor described in claim 1.
15. image forming apparatus according to claim 14, which is characterized in that
The electro-mechanical part applies DC voltage to the Electrophtography photosensor.
CN201780060103.9A 2016-10-28 2017-09-13 Electrophtography photosensor, handle box and image forming apparatus Pending CN109791384A (en)

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JP2016211392 2016-10-28
PCT/JP2017/033118 WO2018079117A1 (en) 2016-10-28 2017-09-13 Electrophotographic photosensitive body, process cartridge, and image forming device

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CN109791384A true CN109791384A (en) 2019-05-21

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