CN104155856B - Toner, developer, toner Cartridge, handle box, imaging device and imaging method - Google Patents

Abstract

The present invention provides a kind of electrostatic image developing toner of the excellent color reproduction of PANTONE171C.The electrostatic image developing toner contains toner-particle, and the toner-particle contains adhesive resin and colorant and meets the following conditions (A).Condition (A): the content of C.I. pigment orange 38 is 6.3 mass % or more, 8.1 mass % hereinafter, and the content of C.I. paratonere 185 is 0.1 mass % above less than 0.7 mass %.The present invention also provides the electrostatic charge image developers and toner Cartridge that contain above-mentioned electrostatic image developing toner.

Description

Toner, developer, toner Cartridge, handle box, imaging device and imaging method

Technical field

The present invention relates to electrostatic image developing toner, electrostatic charge image developer, toner Cartridge, handle box, imaging dresses It sets and imaging method.

Background technique

This 4 kinds of face of yellow (Y), magenta (M), cyan (C) and black (K) are generally used in the imaging of electrofax mode The toner of color carrys out reproducing color therewith.In addition, being only difficult to the face reproduced with the toner (YMCK) of above-mentioned 4 kinds of colors to reproduce Color has used the toner of the color other than YMCK.

For example, patent document 1 discloses a kind of shallow magenta toner, which contains magenta toner and about The combination of light absorbing hue adjustment colorant at 400nm to about 500nm wavelength.

In addition, patent document 2 discloses a kind of red toner by C.I. vat red 41 with material of showing signs of anger.

In addition, patent document 3 discloses a kind of orange toner containing C.I. pigment orange 38.

[existing technical literature]

[patent document]

[patent document 1] Japanese Unexamined Patent Publication 2011-150336 bulletin

[patent document 2] Japanese Unexamined Patent Publication 2011-242431 bulletin

[patent document 3] Japanese Unexamined Patent Publication 2012-68581 bulletin

Summary of the invention

[problems to be solved by the invention]

Problem of the invention is to provide a kind of electrostatic image development toning of the excellent color reproduction of PANTONE171C Agent.

[solution to problem]

Solves the above problem by scheme below.That is,

The invention that first aspect present invention is related to is,

A kind of electrostatic image developing toner containing toner-particle, wherein the toner-particle contains adhesive Resin and colorant simultaneously meet the following conditions (A).

Condition (A): the content of C.I. pigment orange 38 is 6.3 mass % or more, 8.1 mass % hereinafter, also, C.I. paratonere 185 content is that 0.1 mass % is above less than 0.7 mass %.

The invention that second aspect of the present invention is related to is,

Electrostatic image developing toner described in first aspect present invention, wherein the toner-particle meets following item At least one of part (B1) and (B2).

Condition (B1): the content of C.I. pigment orange 38 is 6.7 mass % or more, 7.3 mass % hereinafter, also, C.I. pigment Red 185 content is that 0.1 mass % is above less than 0.7 mass %.

Condition (B2): the content of C.I. pigment orange 38 is 6.5 mass % or more, 7.5 mass % hereinafter, also, C.I. pigment Red 185 content is 0.2 mass % or more, 0.5 mass % or less.

The invention that third aspect present invention is related to is,

Electrostatic image developing toner described in first aspect present invention, wherein the toner-particle meets following item Part (C).

Condition (C): the content of C.I. pigment orange 38 is 6.7 mass % or more, 7.3 mass % hereinafter, also, C.I. paratonere 185 content is 0.2 mass % or more, 0.5 mass % or less.

The invention that fourth aspect present invention is related to is,

Electrostatic image developing toner described in first aspect present invention, wherein adhesive tree in the toner-particle The content of rouge is 40 mass % or more, 90 mass % or less.

The invention that fifth aspect present invention is related to is,

Electrostatic image developing toner described in first aspect present invention, wherein described adhesive resin is polyester tree Rouge.

The invention that sixth aspect present invention is related to is,

Electrostatic image developing toner described in fifth aspect present invention, wherein the glass transition of the polyester resin Temperature (Tg) is 50 DEG C or more 80 DEG C or less.

The invention that seventh aspect present invention is related to is,

Electrostatic image developing toner described in fifth aspect present invention, wherein the molecular weight distribution of the polyester resin Mw/Mn is 1.5 or more 100 or less.

The invention that eighth aspect present invention is related to is,

Electrostatic image developing toner described in first aspect present invention, wherein containing 20 matter in the toner-particle Measure % white pigment below.

The invention that ninth aspect present invention is related to is,

Electrostatic image developing toner described in eighth aspect present invention, wherein C.I. pigment orange 38, C.I. paratonere 185 and the total amount of white pigment account for the 85 mass % or more of the colorant total amount in toner-particle.

The invention that tenth aspect present invention is related to is,

Electrostatic image developing toner described in first aspect present invention, also includes antitack agent, and the antitack agent Melting temperature is 50 DEG C or more 110 DEG C or less.

The tenth invention that relates in one aspect to of the present invention is,

Electrostatic image developing toner described in tenth aspect present invention, wherein the content of the antitack agent is 1 mass % The above 20 mass % or less.

The invention that the twelfth aspect of the present invention is related to is,

Electrostatic image developing toner described in first aspect present invention, wherein the volume of the toner-particle is average Partial size (D50v) is 2 μm or more 10 μm or less.

The 13rd invention that is related to of aspect of the present invention is,

Electrostatic image developing toner described in first aspect present invention, wherein the form factor of the toner-particle SF1 is 110 or more 150 or less.

The invention that fourteenth aspect of the present invention is related to is,

A kind of electrostatic charge image developer, it includes the electrostatic image developing toners described in first aspect present invention.

The invention that the fifteenth aspect of the present invention is related to is,

A kind of electrostatic charge image developer, it includes the electrostatic image developing toners described in second aspect of the present invention.

The 16th invention that is related to of aspect of the present invention is,

A kind of electrostatic charge image developer, it includes the electrostatic image developing toners described in third aspect present invention.

The 17th invention that is related to of aspect of the present invention is,

A kind of toner Cartridge accommodates electrostatic image developing toner described in first aspect present invention, and can It is disassembled from imaging device.

The 18th invention that is related to of aspect of the present invention is,

A kind of toner Cartridge accommodates electrostatic image developing toner described in second aspect of the present invention, and can It is disassembled from imaging device.

The 19th invention that is related to of aspect of the present invention is,

A kind of toner Cartridge accommodates electrostatic image developing toner described in third aspect present invention, and can It is disassembled from imaging device.

[effect of the invention]

First, the 4th to the 13rd aspect according to the present invention, provides such a electrostatic image developing toner, Compared with the case where toner-particle is unsatisfactory for above-mentioned condition (A), the excellent color reproduction of PANTONE171C.

According to the second aspect of the invention, such a electrostatic image developing toner is provided, with toner-particle Be unsatisfactory for above-mentioned condition (B1) in condition (B2) any one the case where compare, the color reprodubility of PANTONE171C is more excellent It is different.

According to the third aspect of the invention we, such a electrostatic image developing toner is provided, with toner-particle The case where being unsatisfactory for above-mentioned condition (C) is compared, and the color reprodubility of PANTONE171C is more excellent.

According to the fourteenth aspect of the invention, such a electrostatic charge image developer is provided, and is contained in toner Toner-particle is unsatisfactory for the case where above-mentioned condition (A) and compares, the excellent color reproduction of PANTONE171C.

According to the fifteenth aspect of the invention, such a electrostatic charge image developer is provided, and is contained in toner Toner-particle be unsatisfactory for above-mentioned condition (B1) in condition (B2) any one the case where compare, the color of PANTONE171C Reproducibility is excellent.

According to the sixteenth aspect of the invention, such a electrostatic charge image developer is provided, and is contained in toner Toner-particle is unsatisfactory for the case where above-mentioned condition (C) and compares, the excellent color reproduction of PANTONE171C.

According to the seventeenth aspect of the invention, such a toner Cartridge is provided, with the toner contained in toner Particle is unsatisfactory for the case where above-mentioned condition (A) and compares, the excellent color reproduction of PANTONE171C.

According to the eighteenth aspect of the invention, such a toner Cartridge is provided, with the toner contained in toner Particle be unsatisfactory for above-mentioned condition (B1) in condition (B2) any one the case where compare, the color reprodubility of PANTONE171C It is excellent.

According to the nineteenth aspect of the invention, such a toner Cartridge is provided, with the toner contained in toner Particle is unsatisfactory for the case where above-mentioned condition (C) and compares, the excellent color reproduction of PANTONE171C.

Detailed description of the invention

[Fig. 1] is the organigram for showing an example of imaging device of the present embodiment.

[Fig. 2] is the organigram for showing an example of handle box of the present embodiment.

[explanation of appended drawing reference]

10R, 10Y, 10M, 10C, 10K imaging unit

1R, 1Y, 1M, 1C, 1K photoreceptor (example of image holding member)

2R, 2Y, 2M, 2C, 2K charging roller (example of charging unit)

3R, 3Y, 3M, 3C, 3K exposure device (example of electrostatic image forming member)

4R, 4Y, 4M, 4C, 4K developing apparatus (examples of developing parts)

5R, 5Y, 5M, 5C, 5K primary transfer roller (example of primary transfer component)

6R, 6Y, 6M, 6C, 6K photoreceptor cleaning device (example of cleaning member)

8R, 8Y, 8M, 8C, 8K toner Cartridge

20 intermediate transfer belts (example of intermediate transfer element)

21 intermediate transfer element cleaning devices

22 driven rollers

23 support rollers

24 counter rolls

26 secondary transfer roller (example of secondary transfer printing component)

28 fixing devices (example of fixing member)

P recording sheet (example of recording medium)

107 photoreceptors (example of image holding member)

108 charging rollers (example of charging unit)

109 exposure devices (example of electrostatic image forming member)

111 developing apparatus (examples of developing parts)

112 transfer devices (example of transfer member)

113 photoreceptor cleaning devices (example of cleaning member)

115 fixing devices (example of fixing member)

116 installation guide rails

117 shells

Opening portion is used in 118 exposures

200 handle boxes

300 recording sheets (example of recording medium)

Specific embodiment

Embodiments of the present invention are described below.It should be noted that these descriptions and embodiment are intended to illustrate hair It is bright, it does not limit the scope of the invention.

In this specification, (methyl) acryloyl group refers to acryloyl group and methylacryloyl, and (methyl) acrylic acid refers to Acrylic acid and methacrylic acid, (methyl) acryloyl refer to acryloyl and methacryl.

<electrostatic image developing toner>

Electrostatic image developing toner (also referred to as " toner ") of the present embodiment includes toner-particle, can Further include external additive.That is, in the present embodiment, it can be using toner-particle as toner, it can also be to tune Toner is used as after external additive is added from outside in toner particles.

The toner-particle for constituting the toner in present embodiment contains adhesive resin and colorant, wherein C.I. face The content of material orange 38 is 6.3 mass % or more, 8.1 mass % hereinafter, and the content of C.I. paratonere 185 is 0.1 mass % or more Less than 0.7 mass %.As including colorant in toner-particle, by by C.I. pigment orange 38 and C.I. paratonere 185 With the conjunction of above-mentioned content groups, the toner of the excellent color reproduction of PANTONE171C is provided.

With by the content of C.I. pigment orange 38 in toner-particle and the content of C.I. paratonere 185 not within the above range Toner be formed by image on the recording medium and compare, formed on the recording medium by the toner in present embodiment Image and PANTONE171C color difference Δ E it is smaller.

Here, color difference Δ E is CIE1976L^*a^*b^*L is used in color system^*Value, a^*Value, b^*It is worth the color difference indicated, by following formula Definition.

[mathematical expression 1]

In above formula, L₁、a₁、b₁It is the L of PANTONE171C^*Value, a^*Value, b^*Value, is commercially available with reflection beam splitting densimeter measurement Color card (art paper) and the value measured.L₂、a₂、 b₂It is to be formed by art paper by the toner in present embodiment The L of image^*Value, a^*Value, b^*Value, to be worth obtained from the reflection beam splitting densimeter measurement image.

Color difference Δ E defined in above formula is the smaller the better.The upper limit value of color difference Δ E is preferably less than 7, more preferably less than 4, further preferably less than 3.

The content of the C.I. pigment orange 38 and C.I. paratonere 185 that contain in toner-particle passes through following (1) to (2) Operation and confirm to obtain.

(1) external additive is removed from toner obtain toner-particle.

Toner is put into the ion exchange water containing 0.1 mass % surfactant and dispersed.Then apply ultrasound Wave makes the external additive of toner surface from toner surface separate out, filters the dispersion liquid.It is repeated 3 times such dispersion And filtering, it is then allowed to drying and thus obtains toner-particle.

(2) element contained in toner-particle is analyzed with x-ray fluorescence analyzer.

The toner-particle formation dish-type for 0.130g will be measured, with x-ray fluorescence analyzer (Shimadzu Scisakusho Ltd System, XRF-1500) under conditions of X-ray output is 40V-70mA, measurement area is 10mm φ, minute is 15 minutes, Full qualitative elementary quantitative analysis is carried out, finds out the net intensity of the Cl from C.I. pigment orange 38 and from C.I. paratonere 185 The net intensity of S.

In addition, C.I. pigment orange 38 and C.I. paratonere 185 are mixed with resin respectively, for the concentration for being adjusted to 4 levels (C.I. pigment orange 38 is 5 mass %, 10 mass %, 15 mass %, 20 mass %；C.I. paratonere 185 is 1 mass %, 2 mass %, 3 Quality %, 4 mass %) sample progress similarly analyzed with front, be made calibration curve.

Then, by be originated from C.I. pigment orange 38 Cl net intensity and the S from C.I. paratonere 185 net intensity, with And standard curve, find out the content of the C.I. pigment orange 38 and C.I. paratonere 185 that contain in toner-particle.

[toner-particle]

Toner-particle contains adhesive resin and colorant, can also be further containing antitack agent or other internal additions Agent.

The ingredient contained in toner-particle is described in detail below.

Adhesive resin-

As adhesive resin, for example, can enumerate: phenylethylene (such as styrene, p-chlorostyrene, Alpha-Methyl benzene Ethylene etc.)；(methyl) esters of acrylic acid (such as (methyl) methyl acrylate, (methyl) ethyl acrylate, (methyl) acrylic acid are just Propyl ester, (methyl) n-butyl acrylate, (methyl) lauryl acrylate, (methyl) 2-EHA etc.)；Ethylenic bond is not It is saturated nitrile (such as (methyl) acrylonitrile etc.)；Vinyl ethers (such as vinyl methyl ether, vinyl isobutyl ether etc.)；Second Alkenyl ketone (such as ethenyl methyl ketone, vinyl ethyl ketone, vinyl isopropenyl ketone etc.)；Olefines (such as ethylene, third Alkene, butadiene etc.) etc. homopolymer or copolymer.

As representative adhesive resin, for example, polyester resin, epoxy resin, polyurethane resin, polyamides can be enumerated Polyimide resin, celluosic resin, polyether resin, polystyrene, styrene-(methyl) alkyl acrylate copolymer, styrene- (methyl) acrylonitrile copolymer, styrene-butadiene copolymer, styrene-maleic anhydride copolymer.

These resins can be used alone, and can also share two or more.

The content of adhesive resin is preferably 40 mass % or more, 90 mass % hereinafter, more preferably 50 in toner-particle 90 mass % of quality % or more is hereinafter, further preferably 60 mass % or more, 85 mass % or less.

As adhesive resin, polyester resin is suitable.

For polyester resin, from the color reprodubility of PANTONE171C it is more excellent from the viewpoint of, can also share without fixed Shape polyester resin and crystalline polyester resin.

As polyester resin, for example, the condensation polymer of polybasic carboxylic acid and polyalcohol can be enumerated.City can be used in polyester resin Commodity are sold, composite also can be used.

As polybasic carboxylic acid, for example, can enumerate: aliphatic dicarboxylic acid (such as oxalic acid, malonic acid, maleic acid, rich horse Acid, citraconic acid, itaconic acid, glutaconate, succinic acid, alkenyl succinic acid, adipic acid, decanedioic acid etc.), ester ring type dicarboxylic acids (example Such as cyclohexane cyclohexanedimethanodibasic), aromatic dicarboxylic acid (such as terephthalic acid (TPA), isophthalic acid, phthalic acid, naphthalenedicarboxylic acid Deng), their acid anhydrides or their rudimentary (such as carbon atom number is 1 or more 5 or less) Arrcostab.Wherein, as polynary Carboxylic acid, for example, aromatic dicarboxylic acid is preferred.

For polybasic carboxylic acid, the ternary with cross-linked structure or branched structure or more can be shared together with dicarboxylic acids Carboxylic acid.As carboxylic acid more than ternary, for example, can enumerate trimellitic acid, pyromellitic acid, they acid anhydrides or they Rudimentary (such as carbon atom number is 1 or more 5 or less) Arrcostab.

Polybasic carboxylic acid can be used alone, and can also share two or more.

As polyalcohol, for example, aliphatic diol (such as ethylene glycol, diethylene glycol, triethylene glycol, the third two can be enumerated Alcohol, butanediol, hexylene glycol, neopentyl glycol etc.), ester ring type glycol (such as cyclohexanediol, cyclohexanedimethanol, hydrogenated bisphenol A Deng), aromatic diol (such as ethylene oxide adduct, propylene oxide adduct of bisphenol-A of bisphenol-A etc.).Wherein, as more First alcohol, for example, aromatic diol, ester ring type glycol are preferred, more preferable aromatic diols.

For polyalcohol, the alcohol of the ternary with cross-linked structure or branched structure or more can be shared together with dihydric alcohol. As alcohol more than ternary, for example, glycerine, trimethylolpropane, pentaerythrite etc. can be enumerated.

Polyalcohol can be used alone, and can also share two or more.

The glass transition temperature (Tg) of polyester resin is preferably 50 DEG C or more 80 DEG C hereinafter, more preferably 50 DEG C or more 65 DEG C or less.

It should be noted that glass transition temperature is according to the DSC curve obtained by differential scanning calorimetry (DSC) And obtain.More specifically, according to the glass transition temperature of JIS K7121-1987 " the transition temperature measurement methods of plastics " Degree asks " extrapolation glass transition initial temperature " described in method to obtain.

The weight average molecular weight (Mw) of polyester resin is preferably 5,000 or more 1, and 000,000 hereinafter, more preferably 7,000 with Upper 500,000 or less.

The number-average molecular weight (Mn) of polyester resin is preferably 2,000 or more 100,000 or less.

The molecular weight distribution mw/mn of polyester resin is preferably 1.5 or more 100 hereinafter, more preferably 2 or more 60 or less.

It should be noted that measuring the equal molecule of weight average molecular weight sum number of resin by gel permeation chromatography (GPC) Amount.Molecular weight measurement by GPC be use Tosoh company to manufacture HLC-8120 as measuring device, use Tosoh company The TSK gel Super HM-M15cm of manufacture is as chromatographic column and uses tetrahydrofuran as solvent and carries out.Using by Measurement result Molecular weight calibration curve as made from monodisperse polystyrene standard sample calculates weight average molecular weight sum number Average molecular weight.

Colorant-

Toner-particle contains the C.I. pigment orange 38 and C.I. paratonere 185 in the following conditions (A) range.

Condition (A): the content of C.I. pigment orange 38 is 6.3 mass % or more, 8.1 mass % hereinafter, and C.I. paratonere 185 content is that 0.1 mass % is above less than 0.7 mass %.

The lower limit of the content of C.I. pigment orange 38 is 6.3 mass % or more in toner-particle, from the color of PANTONE171C From the viewpoint of color reproducibility is more excellent, more preferable 6.5 mass % or more, even more preferably 6.7 mass % or more.

The upper limit of the content of C.I. pigment orange 38 is 8.1 mass % hereinafter, from the color of PANTONE171C in toner-particle From the viewpoint of color reproducibility is more excellent, more preferable 7.5 mass % is hereinafter, even more preferably 7.3 mass % or less.

The lower limit of the content of C.I. paratonere 185 is 0.1 mass % or more in toner-particle, from the color of PANTONE171C From the viewpoint of color reproducibility is more excellent, more preferable 0.2 mass % or more.

The upper limit of the content of C.I. paratonere 185 is less than 0.7 mass %, from the color of PANTONE171C in toner-particle From the viewpoint of color reproducibility is more excellent, more preferable 0.5 mass % or less.

Also, the content of the content of C.I. pigment orange 38 and C.I. paratonere 185 in toner-particle, from From the viewpoint of the color reprodubility of PANTONE171C is more excellent, preferably satisfy in the following conditions (B1) and condition (B2) extremely Few one, more preferably meets the following conditions (C).

Condition (B1): the content of C.I. pigment orange 38 is 6.7 mass % or more, 7.3 mass % hereinafter, and C.I. paratonere 185 content is that 0.1 mass % is above less than 0.7 mass %.

Condition (B2): the content of C.I. pigment orange 38 is 6.5 mass % or more, 7.5 mass % hereinafter, and C.I. paratonere 185 content is 0.2 mass % or more, 0.5 mass % or less.

Condition (C): the content of C.I. pigment orange 38 is 6.7 mass % or more, 7.3 mass % hereinafter, and C.I. paratonere 185 content is 0.2 mass % or more, 0.5 mass % or less.

Toner-particle can also contain other colorants other than C.I. pigment orange 38 and C.I. paratonere 185.As Other colorants can be pigment and be also possible to dyestuff, and from the viewpoint of light resistance and water resistance, pigment is preferred.

As other colorants, for example, can enumerate: SiO₂(silica), TiO₂(titanium dioxide), Al₂O₃(oxygen Change aluminium) etc. white pigments；C.I. pigment red 122, C.I. pigment red 4 8:1, C.I. paratonere 57:1, Bengal rose red etc. are red The pigment and dyestuff of color；C.I. the pigment and dyestuff of the yellow such as pigment yellow 97, C.I. pigment Yellow 12, quinoline yellow, chrome yellow；Peacock The pigment and dyestuff of the green such as malachite green oxalates；C.I. pigment blue 15: 1, C.I. pigment blue 15: 3, aniline blue, copper oil blue, group The pigment and dyestuff of the blue such as blueness, phthalocyanine blue, protochloride methyl blue；The pigment and dye of the black such as carbon black, lampblack, nigrosine Material；Deng.

The white pigments such as silica, titanium dioxide, aluminium oxide can also be because of purposes (such as the toner other than coloring The purposes such as charge control) and be added in toner-particle.

The total amount of white pigment in toner-particle, from the color rendering of PANTONE171C be easy from the viewpoint of, it is excellent Be selected as 20 mass % hereinafter, more preferably 15 mass % hereinafter, further preferably 10 mass % hereinafter, still more preferably for 5 matter % is measured hereinafter, particularly preferably 1 mass % or less.

From the viewpoint of being easy from the color rendering of PANTONE171C, about C.I. pigment orange 38 in toner-particle, C.I. the content of the colorant other than paratonere 185 and white pigment, every kind of colorant are respectively preferably 1 mass % hereinafter, more Preferably 0.5 mass % hereinafter, further preferably 0.1 mass % hereinafter, being still more preferably below detection limit and substantive On can be described as not including, particularly preferably 0 mass %.

From the color rendering of PANTONE171C be easier from the viewpoint of, C.I. pigment orange 38, C.I. paratonere 185 with And the colorant total amount that the total amount of white pigment accounts in toner-particle is preferably 85 mass % or more, more preferably 90 mass % More than, further preferably 95 mass % or more are still more preferably 99 mass % or more, particularly preferably 100 mass % (that is, without colorant other than C.I. pigment orange 38, C.I. paratonere 185 and white pigment).

From the viewpoint of being easy from the color rendering of PANTONE171C, C.I. pigment orange 38 and C.I. paratonere 185 The colorant total amount that total amount accounts in toner-particle is preferably 30 mass % or more, more preferably 40 mass % or more, further Preferably 50 mass % or more are still more preferably 60 mass % or more, are still more preferably 70 mass % or more, more into one Step is preferably 80 mass % or more, is still more preferably 90 mass % or more, and particularly preferably 100 mass %(are that is, be free of C.I. Other colorants other than pigment orange 38 and C.I. paratonere 185).

Antitack agent-

As antitack agent, for example, can enumerate: alkyl wax；The native paraffins such as Brazil wax, rice bran wax, candelila wax；It is brown The synthesis such as coal wax or mineral/petroleum base wax；The ester groups wax such as aliphatic ester, montanate；Deng.Antitack agent is not limited to these.

The melting temperature of antitack agent is preferably 50 DEG C or more 110 DEG C hereinafter, more preferably 60 DEG C or more 100 DEG C or less.

It should be noted that the melting temperature of antitack agent is bent by the DSC obtained by differential scanning calorimetry (DSC) Line " melts described in method according to asking for the melting temperature of JIS K7121-1987 " the transition temperature measurement methods of plastics " What peak temperature " obtained.

In toner-particle the content of antitack agent be preferably 1 mass % or more, 20 mass % hereinafter, more preferably 5 mass % with Upper 15 mass % or less.

Inorganic oxide particles-

Toner-particle can also contain inorganic oxide particles.As inorganic oxide, such as SiO can be enumerated₂(two Silica), TiO₂(titanium dioxide), Al₂O₃(aluminium oxide), CuO, ZnO, SnO₂、CeO₂、Fe₂O₃、MgO、BaO、CaO、K₂O、 Na₂O、 ZrO₂、CaO·SiO₂、K₂O·(TiO₂)_n、Al₂O₃·2SiO₂、CaCO₃、MgCO₃、 BaSO₄、MgSO₄Equal metals oxidation Object.

The surface of inorganic oxide particles can not carry out silicic acid anhydride in advance, can also carry out at hydrophobization in advance Reason.

The content of inorganic oxide particles in toner-particle never carrys out the viewpoint that toner form and aspect have an impact See, preferably 20 mass % hereinafter, more preferably 15 mass % hereinafter, further preferably 10 mass % are hereinafter, still more preferably For 5 mass % hereinafter, particularly preferably 1 mass % or less.

Other additives-

As other additives, such as additive known to magnetic substance, charge control agent and inorganic powder being enumerated etc.. These additives are contained in toner-particle as internal additives.

The characteristic-of toner-particle

Toner-particle can be the toner-particle of single layer structure, is also possible to by core (nuclear particle) and is covered on institute State the toner-particle for the so-called nucleocapsid structure that the clad (shell) on core is constituted.The toner-particle of nucleocapsid structure It can be (for example) made of core and the clad constituted by the inclusion of adhesive resin, wherein the core is by the inclusion of viscous Other additives such as mixture resin, colorant and antitack agent as needed and constitute.

The volume average particle size (D50v) of toner-particle is preferably 2 μm or more 10 μm hereinafter, more preferably 4 μm or more 8 μ M or less.

Manufactured using Coulter Multisizer II(Beckman Coulter company) and use ISOTON-II (manufacture of Beckman Coulter company) measures the various average grain diameters and various granularities point of toner-particle as electrolyte Cloth index.

When measurement, 0.5mg or more 50mg measurement sample below is added to the 2ml5% surfactant as dispersing agent In the aqueous solution of (optimizing alkyl benzene sulfonic acid sodium salt).Gained liquid is added in 100ml or more 150ml electrolyte below.

By the electrolyte for being suspended with sample with ultrasonic disperser decentralized processing 1 minute, pass through Coulter Multisizer II, the hole for being 100 μm using pore diameter are 2 μm or more 60 μm of particles below to particle size range Particle diameter distribution measures.It should be noted that Sampling particles number is 50000.

For the particle size range (channel) divided based on measured particle diameter distribution, drawn since minor diameter side respectively Volume and quantity cumulative distribution processed, by cumulative percentage be 16% when partial size be defined as particle volume diameter D16v, quantity partial size D16p, by cumulative percentage be 50% when partial size be defined as volume average particle size D50v, number average particle size D50p, will accumulate Partial size when percentage is 84% is defined as particle volume diameter D84v, quantity partial size D84p.

By using these, according to (D84v/D16v)^1/2It calculates volume average particle size profile exponent (GSDv), according to (D84p/D16p)^1/2It calculates average number particle diameter distribution index (GSDp).

The shape factor S F1 of toner-particle is preferably 110 or more 150 hereinafter, more preferably 120 or more 140 or less.

It should be noted that shape factor S F1 is acquired by following formula.

Formula: SF1=(ML²/A)×(π/4)×100

In above formula, ML indicates that the absolute maximum length of toner, A indicate the projected area of toner.

Specifically, shape factor S F1 is mainly by using image analysis apparatus to MIcrosope image or scanning electricity Sub- microscope (SEM) image analyze quantizing, and is calculated in the following manner.That is, being obtained by: with taking the photograph Camera imports the optical microscope image for the particle being dispersed in slide surface in Luzex image analyzer, obtains 100 The maximum length and projected area of grain, are calculated, and acquire its average value using above formula.

[external additive]

As external additive, such as inorganic particle can be enumerated.As the inorganic particle, SiO can be enumerated₂、TiO₂、 Al₂O₃、CuO、ZnO、SnO₂、CeO₂、Fe₂O₃、 MgO、BaO、CaO、K₂O、Na₂O、ZrO₂、CaO·SiO₂、K₂O·(TiO₂)_n、 Al₂O₃·2SiO₂、CaCO₃、MgCO₃、BaSO₄、MgSO₄Deng.

Silicic acid anhydride can be carried out to the surface of the inorganic particle as external additive.Such as inorganic particle is immersed in Silicic acid anhydride agent is medium to carry out silicic acid anhydride.Silicic acid anhydride agent is not particularly limited, for example, silanes can be enumerated Coupling agent, silicone oil, titante coupling agent, aluminium class coupling agent etc..They can be used alone, can also be with two or more combination It uses.

The dosage of silicic acid anhydride agent, for example, the inorganic particle relative to 100 mass parts, is 1 mass parts or more, 10 mass Part or less.

As external additive, resin particle (resin particles such as polystyrene, PMMA, melamine), clear can be enumerated Clean activator (for example, using zinc stearate as the metal salt of the higher fatty acids of representative, the particle of fluoro containing polymers weight polymers) Deng.

The additive amount of external additive, for example, relative to toner-particle, preferably 0.01 mass % or more, 5 mass % with Under, more preferably 0.01 mass % or more, 2 mass % or less.

[manufacturing method of toner]

Toner described in the present embodiment can be manufacture toner-particle and using the toner-particle as toner, It is also possible to become toner after adding external additive in the toner-particle.

Toner-particle can pass through (such as the aggregation condensation of dry type autofrettage (such as mediate comminuting method) and wet type autofrettage Method, suspension polymerization and dissolution suspension method etc.) in any one manufacture.These manufacturing methods are not specially limited, it can Using known manufacturing method.Wherein, toner-particle is preferably obtained by aggregation coagulation.

Specifically, for example, toner-particle is by walking as follows when manufacturing toner-particle by aggregation coagulation Suddenly it manufactures:

The step of preparation is dispersed with the particulate resin dispersion as the resin particle of adhesive resin (resin particle dispersion Liquid preparation step)；

The step of preparation is dispersed with the colorant dispersion of coloring agent particle (colorant dispersion preparation step)；

In particulate resin dispersion and colorant dispersion mixing (also being mixed as needed with other particle dispersions) In dispersion liquid afterwards, make resin particle and colorant (as needed also with other particles) aggregation, to form aggregated particle The step of (aggregated particle forming step)；And

The aggregated particle dispersion liquid for being dispersed with aggregated particle is heated, makes aggregated particle fusion condensation, is consequently formed The step of toner-particle (fusion congealing step).

The details of aggregation each step of coagulation is described below.

In following explanation, the preparation method of the toner-particle also containing antitack agent is illustrated, but antitack agent It is as needed and use.It is of course also possible to use other additives other than antitack agent.

Particulate resin dispersion preparation step-

Firstly, preparation is dispersed with the particulate resin dispersion of the resin particle as adhesive resin.

Particulate resin dispersion is (for example) prepared: so that resin particle is dispersed in dispersion by surfactant and is situated between In matter.

As decentralized medium used in particulate resin dispersion, (for example) aqueous medium can be enumerated.

As aqueous medium, for example, can enumerate: the water such as distilled water, ion exchange water；Alcohols；Deng.They can be independent Using a kind, two or more can also be shared.

As surfactant, for example, can enumerate: sulfuric ester salt, Sulfonates, phosphoric acid ester, soaps etc. yin from Sub- surfactant；The cationic surfactants such as amine salt type, quaternary；Polyethylene glycol, alkylphenol ethylene oxide adduction The nonionic surfactants such as species, polyalcohols；Deng.Can especially enumerate in these anionic surfactant, sun from Sub- surfactant.Nonionic surfactant can be shared with anionic surfactant or cationic surfactant.

Surfactant can be used alone, and can also be shared with two or more.

It is distributed to the method in decentralized medium as by resin particle, has used rotary shearing type equal for example, can enumerate The general dispersing method of matter machine, the ball mill with medium, sand mill, Dyno mill etc..According to the type of resin particle, such as Resin particle can also be made to be distributed in decentralized medium using phase conversion emulsifying.

It should be noted that phase conversion emulsifying is such method: the resin to be dispersed being made to be dissolved in the resin-soluble Hydrophobic organic solvent in, to after alkali is added in organic continuous phases (O phase) to neutralize, is added water (W phase), thus carries out from W/ The phase inversion of O to O/W, thus with graininess by resin dispersion in an aqueous medium.

The volume average particle size for being dispersed in the resin particle in particulate resin dispersion is (for example) preferably 0.01 μm or more 1 μm hereinafter, more preferably 0.08 μm or more 0.8 μm hereinafter, further preferably 0.1 μm or more 0.6 μm or less.

About the volume average particle size of resin particle, using by laser diffraction type size distribution meter (for example, strain formula The LA-700 of commercial firm Horiba manufacture) measurement and the particle diameter distribution that obtains, based on the particle size range (channel) divided, from small Diameter side starts to draw volume-cumulative distribution, and relative to whole particles, partial size when volume is 50% is as volume average particle size D50v.It should be noted that the volume average particle size of the particle in other dispersion liquids is also measured with same method.

The content of resin particle contained in particulate resin dispersion is preferably 5 mass % or more, 50 mass % hereinafter, more excellent It is selected as 10 mass % or more, 40 mass % or less.

Colorant dispersion preparation step-

The colorant dispersion for being dispersed with coloring agent particle is using identical with the preparation method of particulate resin dispersion Method preparation.The grain that is volume of the decentralized medium of colorant dispersion, surfactant, dispersing method, particle is averaged Diameter and granule content are identical as particulate resin dispersion.It should be noted that colorant, which also can be used, is scattered in resin The particulate resin dispersion containing colorant formed in particle replaces colorant dispersion.

In addition, the releasing agent dispersion liquid for being dispersed with anti-sticking agent particle is also using the preparation method with particulate resin dispersion Identical method preparation.That is the volume of the decentralized medium of releasing agent dispersion liquid, surfactant, dispersing method, particle Average grain diameter and granule content are identical as particulate resin dispersion.Specification is needed, antitack agent point also can be used It dissipates in resin particle and the particulate resin dispersion containing antitack agent that is formed replaces releasing agent dispersion liquid.

Aggregated particle forming step-

Then, particulate resin dispersion, colorant dispersion, releasing agent dispersion liquid are mixed.

Then, in mixed dispersion liquid, resin particle, coloring agent particle and the heterogeneous aggregation of anti-sticking agent particle, formation have Close diameter and gathering containing resin particle, coloring agent particle and anti-sticking agent particle with the diameter of target toner-particle Collect particle.

Specifically, the pH of mixed dispersion liquid being adjusted arrive on one side for example, add agglutinant into mixed dispersion liquid on one side Acid (such as 5 or less pH2 or more), is added as needed dispersion stabilizer, is then heated to the glass transition of resin particle Temperature near temperature is (specifically, for example, -30 DEG C or more and vitrifying turn of the glass transition temperature of resin particle - 10 DEG C or less of temperature), make the particle aggregation dispersed in mixed dispersion liquid, forms aggregated particle.

In aggregated particle forming step, for example, it is also possible to by mixed dispersion liquid under rotary shearing type homogenizer, Agglutinant is added under room temperature (such as 25 DEG C), the pH of mixed dispersion liquid is adjusted to acid (such as 5 or less pH2 or more), according to It is heated after needing to add dispersion stabilizer.

As agglutinant, for example, the surface opposite with the surfactants-polar contained in mixed dispersion liquid can be enumerated Metal complex more than activating agent, such as inorganic metal salt, divalent.Metal complex is as agglutinant in use, agglutinant Dosage is reduced, and charge characteristic improves.

It can also be used together with agglutinant and the metal ion of the agglutinant forms adding for complex compound or similar combination Add agent.As such additive, chelating agent is properly used.

As inorganic metal salt, for example, can enumerate: calcium chloride, calcium nitrate, barium chloride, magnesium chloride, zinc chloride, chlorination The metal salts such as aluminium, aluminum sulfate；The inorganic metal salts polymer such as polyaluminium chloride, poly- aluminium hydroxide, calcium polysulfide；Deng.

As chelating agent, water-soluble chelating agent can be used.As chelating agent, for example, tartaric acid, lemon can be enumerated Acid, gluconic acid etc. aoxidize carboxylic acid (オ キ シ カ Le ボ Application acid)；Iminodiacetic acid (IDA), nitrilotriacetic acid (NTA), The amino carboxylic acids such as ethylenediamine tetra-acetic acid (EDTA)；Deng.

The additive amount of chelating agent, for example, the resin particle relative to 100 mass parts, more than preferably 0.01 mass parts 5.0 Below the mass, more preferably 0.1 mass parts are less than 3.0 mass parts.

Merge congealing step-

Then, the aggregated particle dispersion liquid for being dispersed with aggregated particle is (for example) heated to the glass transition of resin particle More than temperature (for example, 10 DEG C higher than the glass transition temperature of resin particle to 30 DEG C of temperature or more), melts aggregated particle Condensation is closed, toner-particle is formed.

By above step, toner-particle is obtained.

It should be noted that toner-particle can also be manufactured by following steps: obtaining being dispersed with the poly- of aggregated particle After collecting particle dispersion, further the aggregated particle dispersion liquid is mixed with the particulate resin dispersion for being dispersed with resin particle, Assembled in a manner of also adhering to resin particle on the surface in aggregated particle, thus the step of forming 2 aggregated particle；With And the 2nd aggregated particle dispersion liquid for being dispersed with the 2nd aggregated particle is heated, make the fusion condensation of the 2nd aggregated particle, to form core- The step of toner-particle of shell structure.

After merging congealing step, well known cleaning step, solid-liquid are carried out to toner-particle formed in solution Separating step, drying steps obtain the toner-particle of drying regime.

About cleaning step, from the viewpoint of charging property, it can be sufficiently carried out and be washed using the displacement of ion exchange water It washs.In addition, being not particularly limited to solid-liquid separation step, but from the viewpoint of productivity, can be filtered, filters pressing Deng.In addition, the method to drying steps is also not particularly limited, but from the viewpoint of productivity, can be freezed Dry, flare drying, fluidized bed drying, vibra fluidized bed drying etc..

In addition, the toner in the present embodiment outside adding in the toner-particle of drying regime (for example) by adding Add agent and mixes and be made.For example, can be mixed with V-mixer, Henschel mixer, Loedige mixer etc. It closes.In addition, as needed, the big particle in toner can also be removed with vibrating screening machine, wind power sieving apparatus etc..

Next the method using dissolution suspension method manufacture toner-particle is described in detail.

Dissolving suspension method is such method: will contain adhesive resin, colorant and used as needed anti-sticking The material of other ingredients such as agent is dissolved or is dispersed in the solvent that described adhesive resin can dissolve, and obtained liquid is existed After being granulated in aqueous medium containing inorganic dispersant, the solvent is removed to obtain toner-particle.

Internal additives, Charge controlled can be enumerated in addition to antitack agent as other ingredients used in dissolution suspension method The various compositions such as agent, inorganic powder (inorganic particle), organic granular.

In the present embodiment, these adhesive resins, colorant and other ingredients used as needed dissolution or It is dispersed in the solvent that adhesive resin can dissolve.Whether adhesive resin can dissolve the composition depending on adhesive resin Ingredient, molecular chain length, three dimensional stress degree etc., therefore cannot treat different things as the same, but usually using hydrocarbon such as toluene, dimethylbenzene, hexanes Class；The halogenated hydrocarbons such as methylene chloride, chloroform, dichloroethanes, dichloroethylene；Ethyl alcohol, butanol, benzylalcohol ether, benzylalcohol isopropyl ether, tetrahydro The alcohol such as furans, oxinane or ether；The esters such as methyl acetate, ethyl acetate, butyl acetate, isopropyl acetate；Acetone, Methylethyl Ketone or the acetals such as ketone, diisobutyl ketone, dimethyl ether (ジ メ チ Le オ キ シ De), diacetone alcohol, cyclohexanone, methyl cyclohexanone Deng.

These solvents dissolve adhesive resin, without dissolved colorants and other ingredients.Colorant and other ingredient energy Disperse in binder resin solution.To the dosage of solvent, there is no limit as long as what can be granulated in an aqueous medium is viscous Degree.The ratio between material (the former) containing adhesive resin, colorant and other ingredients and solvent (the latter) are easy from being granulated From the viewpoint of the yield of degree and final toner-particle, preferably 10/90 to 50/50(the former/mass ratio of the latter).

Dissolve or be scattered in the liquid (toner mother liquor) of adhesive resin in solvent, colorant and other ingredients with The mode that predetermined particle diameter is formed in the aqueous medium containing inorganic dispersant is granulated.Aqueous medium mainly be water. The mixing ratio of aqueous medium and toner mother liquor is preferably aqueous medium/mother liquor=90/10 to 50/50(mass ratio).As inorganic Dispersing agent is preferably selected from tricalcium phosphate, hydroxyapatite, calcium carbonate, titanium oxide and silicon oxide powder.The dosage of inorganic dispersant The partial size of particle depending on granulation, but be 0.1 mass % or more 15 usually relative to the preferred use scope of toner mother liquor Quality % or less.Dosage can be then granulated well if being 0.1 mass % or more, and dosage then can be with if being 15 mass % or less Inhibit the generation of unnecessary fine particle and to obtain target particles in high yield.

It, can be with aqueous media in order to allow toner mother liquor to be granulated well in the aqueous medium containing inorganic dispersant Middle addition auxiliary agent.As the auxiliary agent, there are well known cationic, anionic and non-ionic surfactant, it is especially excellent Select anionic.For example, have sodium alkyl benzene sulfonate, alpha-olefin sodium sulfonate, sodium alkyl sulfonate etc., relative to toner mother liquor, They are preferably 1 × 10^-4It is used in the range of quality % or more 0.1 mass % or less.

The granulation of toner mother liquor preferably carries out under shear in the aqueous medium containing inorganic dispersant.It is dispersed in water It is average grain diameter is 15 μm or less that toner mother liquor in property medium, which is preferably granulated,.Particularly preferably 3 μm or more following 10 μm with Under.

As the device with cutting mechanism, there are various dispersion machines, wherein it is preferred that homogenizer.By using homogenizer, make Immiscible substance (being the aqueous medium containing inorganic dispersant and toner mother liquor in present embodiment) passes through set each other Gap between pipe and rotor, thus substance immiscible with the liquid in liquid is dispersed with graininess.As this Matter machine has TK homogenizer, line stream homogenizer, automatic homogenizer (the above are Tokushu Kika Kogyo K.K's systems), Silverson homogenizer (Silverson Co. Ltd. system), Polytron homogenizer (KINEMATICA AG corporation) etc..

Stirring condition using homogenizer is preferably that the peripheral speed of the fin of rotor is 2m/ seconds or more.This speed with Then granulating is tended to be sufficiently carried out if upper.In the present embodiment in the aqueous medium containing inorganic dispersant toner Mother liquor removes solvent after being granulated.The removing of solvent can carry out under room temperature (25 DEG C) normal pressure, but remove need long in this way Time, thus preferably the low boiling point than solvent and with boiling point difference in the temperature of 80 DEG C of ranges below under the conditions of carry out. Pressure can be normal pressure and be also possible to depressurize, but preferably carry out in 20mmHg or more 150mmHg or less when decompression.

The toner-particle that above-mentioned dissolution suspension method obtains after removal of the solvent, is preferably washed with hydrochloric acid etc..In this way can The inorganic dispersant of toner-particle surface remaining is removed, to form and improve its characteristic as toner-particle is original.So Afterwards, if being dehydrated, being dry, powdered toner-particle can be obtained.

It is identical as the case where assembling coagulation in the toner-particle obtained by dissolution suspension method, in order to adjust electrification Property, assign mobility, assign charge-exchange the purpose of, can add attachment silica, titanium oxide, aluminium oxide be representative nothing Machine oxide etc. is used as external additive.In addition, other than above-mentioned inorganic oxide etc., can also add charge control agent, Other ingredients such as organic granular, lubricant, grinding agent (particle) are used as external additive.

<electrostatic charge image developer>

The electrostatic charge image developer of the present embodiment includes at least the toner of the present embodiment.

The electrostatic charge image developer of the present embodiment can be the single component development of the only toner comprising the present embodiment Agent is also possible to the two-component developing agent that the toner is mixed with carrier and obtained.

As carrier, there is no particular limitation, can enumerate known carrier.As carrier, such as can enumerate: by The surface for the core material that Magnaglo is formed is coated with the coating carrier of resin；Disperse in matrix resin and is combined with Magnaglo Magnaglo dispersing type carrier；The resin immersion-type carrier of resin is impregnated in porous magnetic powder；In matrix resin Disperse and be combined with the conductive particle dispersing type carrier of conductive particle；Deng.

Magnaglo dispersing type carrier, resin immersion-type carrier and conductive particle dispersing type carrier can be with the carrier Composition particle be core material and be coated with the carrier of resin on the surface thereof.

It as Magnaglo, such as can enumerate: the magnetic metals such as iron, nickel, cobalt；Ferrite, magnetic iron ore etc. are magnetic oxygenated Object；Deng.

It as conductive particle, can enumerate: the metals such as gold, silver, copper；Carbon black, titanium oxide, zinc oxide, tin oxide, sulfuric acid The particles such as barium, aluminium borate, potassium titanate；Deng.

Resin and matrix resin are used as coating, such as can be enumerated: polyethylene, polypropylene, polystyrene, poly-vinegar acid second Enester, polyvinyl alcohol, polyvinyl butyral, polyvinyl chloride, polyvingl ether, polyvinyl ketone, Chlorovinyl-acetate vinyl Copolymer, Styrene-acrylic copolymer, the straight chain organic siliconresin or its modifier that are constituted comprising organosiloxane key, Fluororesin, polyester, polycarbonate, phenolic resin, epoxy resin etc..Conduction material can be contained in coating resin and matrix resin The additives such as material.

When with the surface of resin-coated core material, can enumerate using by it is coating with resin and various additives (according to Need) it is dissolved in coating formation made of in solvent appropriate and carries out coating method etc. with solution.For solvent without spy Other restriction can be selected according to type, the coating adaptability etc. of the resin used.

As specific resin-coated method, it can enumerate: core material is immersed in the dipping in coating formation solution Method；By the spray coating method on coating formation spray solution to core surfaces；Core material is set to be in floating state by moving air Lower sprinkling coating forms the fluidized bed process for using solution；By the core material of carrier and coating formation solution in mediating coating machine Mixing, the kneader rubbing method for then removing solvent；Deng.

The mixing ratio (mass ratio) of toner and carrier is preferably toner in two-component developing agent: carrier=1:100 is extremely 30:100, more preferably 3:100 are to 20:100.

<imaging device/imaging method>

The imaging device of the present embodiment and imaging method are illustrated below.

The imaging device of the present embodiment includes image holding member；Charging to the surface charging of image holding member Component；The electrostatic image forming member of electrostatic image is formed on the surface of image holding member after charging；Developing parts, Electrostatic charge image developer is accommodated, and by the electrostatic charge image developer makes to be formed in quiet on the surface of image holding member Electrical image development is toner image；The toner image that will be formed on the surface of image holding member is transferred to recording medium Surface on transfer member；And make the fixing member for the toner image being transferred on the surface of recording medium.Separately Outside, as electrostatic charge image developer, electrostatic charge image developer described in the present embodiment has been used.

In imaging device described in the present embodiment, the imaging method (the present embodiment included the following steps is implemented Imaging method): the charge step to charge to the surface of image holding member；The table of image holding member after charging The electrostatic image forming step of electrostatic image is formed on face；Make to be formed in image using the electrostatic charge image developer of the present embodiment Electrostatic image development on holding member surface is the development step of toner image；It will be formed on image holding member surface Toner image be transferred to the transfer step on recording medium surface；And make the toner being transferred on recording medium surface The fix steps of image fixing.

The imaging device of the present embodiment uses following known imaging devices: the device of direct transfer modes, The toner image that will be formed on image holding member surface transfer will be made directly in recording medium；The dress of intermediate transfer mode It sets, the toner image that will be formed on image holding member surface is transferred on the surface of intermediate transfer element, and And the toner image that will transfer on intermediate transfer element surface is secondarily transferred on the surface of recording medium；With cleaning section The device of part, the image holding member surface after toner image transfer, before cleaning member cleaning charging；With de-power unit The device of part, after toner image transfer, which before charging will be except the table of electric lights to image holding member Face is to be de-energized；Deng.

In the case where the device of intermediate transfer mode, transfer member (for example) uses such construction, includes table Transferred with the intermediate transfer element of toner image on face；The toner image that will be formed on image holding member surface is primary The primary transfer component being transferred on the surface of intermediate transfer element；And the tune on intermediate transfer element surface will be had transferred Toner image is secondarily transferred to the secondary transfer printing component on the surface of recording medium.

In the imaging device of the present embodiment, it may for example comprise the part of developing parts can be can be from imaging device The box structure (handle box) disassembled.As handle box, for example, it is preferable to using electrostatic figure described in the present embodiment is accommodated As developer and with the handle box of developing parts.

An example of imaging device described in the present embodiment is described below, but be not limited to that this.It needs It is bright, major part shown in figure is illustrated, and omit the description to other parts.

Fig. 1 is the organigram for showing the imaging device of the present embodiment, to show 5 company's series systems and band The figure of the imaging device of intermediate transfer mode.

Imaging device shown in Fig. 1 have following manner the 1st to the 5th imaging unit 10R, 10Y, 10M, 10C and 10K(image-forming block), they distinguish output red (R), yellow (Y), magenta (M), cyan according to the image data of color separation (C) and the assorted image of black (K).These imaging units (hereinafter sometimes called " unit ") 10R, 10Y, 10M, 10C and 10K is arranged side by side in the horizontal direction with preset distance interval.These units 10R, 10Y, 10M, 10C and 10K can be can be from The handle box disassembled on imaging device.

In the lower section of each unit 10R, 10Y, 10M, 10C and 10K, by each unit be extended intermediate transfer belt (in Between transfer member an example) 20.The drive contacted with the inner surface of intermediate transfer belt 20 is arranged in the winding of intermediate transfer belt 20 In dynamic roller 22, support roller 23 and counter roll 24, and transported on the direction from first unit 10R towards the 5th unit 10K Row.In the image retaining surface side of intermediate transfer belt 20, and driven roller 22 is positioned opposite intermediate transfer element cleaning device 21.

Red, yellow, magenta, cyan and the black that will be received in toner Cartridge 8R, 8Y, 8M, 8C and 8K are respectively mixed colours Agent be respectively fed to each unit 10R, 10Y, 10M, 10C and 10K developing apparatus (examples of developing parts) 4R, 4Y, 4M, 4C and 4K.

Due to the 1st to the 5th unit 10R, 10Y, 10M, 10C and 10K construction having the same, operation and act on, Herein using be disposed in intermediate transfer belt traffic direction upstream side, the first unit 10R that is used to form red image is generation Table is described.

First unit 10R has the photoreceptor 1R for playing the role of image holding member.It is successively set around photoreceptor 1R Be equipped with: charging roller (example of charging unit) 2R makes the surface of photoreceptor 1R charge to scheduled current potential；Exposure device (example of electrostatic image forming member) 3R, the picture signal based on color separation, by laser beam by the surface after electrification Exposure, to form electrostatic image；Developing apparatus (examples of developing parts) 4R, is supplied to electrostatic image for toner Above to make electrostatic image development；Primary transfer roller (example of primary transfer component) 5R, by the toner image after development It is transferred on intermediate transfer belt 20；And photoreceptor cleaning device (example of cleaning member) 6R, removing are once turning Remain in the toner on the surface photoreceptor 1R after print.

The inside of intermediate transfer belt 20 is arranged in primary transfer roller 5R, and is located at the position opposite with photoreceptor 1R.It will Bias supply (not shown) for applying primary transfer bias is respectively connected to primary transfer roller 5R, 5Y, 5M, 5C of each unit And 5K.By the control of unshowned control unit, bias supply changes the transfer bias for being applied to each primary transfer roller.

The operation that red image is formed in first unit 10R is described below.

Firstly, the surface of photoreceptor 1R to be charged to the electricity of -600V to -800V by charging roller 2R before starting operation Position.

Photoreceptor 1R be by electric conductivity (for example, volume resistivity at 20 DEG C is 1 × 10^-6Ω cm or less) on matrix Photosensitive layer is laminated and is formed.The photosensitive layer is usually high resistance (resistance of ordinary resin), but has the properties that work as and shine When penetrating laser beam, the specific resistance for the part that laser beam is irradiated changes.Thus, it is sent out according to by control unit not shown in the figure The red image data sent, from exposure device 3R, laser beam is irradiated on the surface of the photoreceptor 1R after charging.As a result, The electrostatic image of red image pattern is formed on the surface of photoreceptor 1R.

Electrostatic image is formed in the following manner by the image formed on the surface of photoreceptor 1R that charges So-called negative sub-image: by the laser beam from exposure device 3R, the specific resistance of the illuminated part of photosensitive layer declines, photoreceptor On the other hand charged particles flowing on the surface 1R is not remained then by the charge for the part that laser beam irradiates.

With the operation of photoreceptor 1R, the electrostatic image formed on photoreceptor 1R is rotated into scheduled developing location. Then, in the developing position, by developing apparatus 4R, electrostatic image on photoreceptor 1R it is developed for toner image to Visualization.

At least electrostatic charge image developer containing red toner and carrier is (for example) accommodated in developing apparatus 4R.Pass through The red toner is stirred inside developing apparatus 4R, to be allowed to be charged by friction, is had and the electricity that is had on photoreceptor 1R The charge of lotus identical polar (negative polarity), so that the red toner is maintained at developer roller (the one of developer holding member A example) on.Then, by making the surface of photoreceptor 1R by developing apparatus 4R, red toner is attached to for electrostatically On the surface photoreceptor 1R except electricity after latent image portion on, so that sub-image is developed by red toner.It is formed with red color tone The photoreceptor 1R continuation of toner image is run at a predetermined rate, and the toner image to develop on photoreceptor 1R is transferred into pre- Fixed primary transfer position.

When the red toner image on photoreceptor 1R is transferred into primary transfer position, primary transfer bias is applied To primary transfer roller 5R, from photoreceptor 1R towards the electrostatic force of primary transfer roller 5R in toner image, thus photoreceptor Toner image on 1R is transferred on intermediate transfer belt 20.The transfer bias applied at this time be and toner polarity (-) Opposite polarity (+), and (for example)+10 μ A are controlled as by control unit (not shown) in first unit 10R.

On the other hand, it is removed by photoreceptor cleaning device 6R and recycles the toner remained on photoreceptor 1R.

It similarly controls and is applied on second unit 10Y later primary transfer roller 5Y, 5M, 5C and 5K with first unit Primary transfer bias.

In this way, the intermediate transfer belt 20 in first unit 10R transferred with red toner image be sequentially transmitted by 2nd to the 5th unit 10Y, 10M, 10C and 10K, thus assorted toner image superposition is to repeatedly transfer.

Secondary transfer printing repeatedly has been reached transferred with the intermediate transfer belt 20 of 5 colour toners images by Unit the 1st to the 5th Portion, the secondary transfer section is by intermediate transfer belt 20, the counter roll contacted with intermediate transfer belt inner surface 24 and is arranged in centre The secondary transfer roller (example of secondary transfer printing component) 26 of the image retaining surface side of transfer belt 20 is constituted.On the other hand, By feed mechanism, with the scheduled time, by recording sheet (example of recording medium) P supply to secondary transfer roller 26 with In the gap that intermediate transfer belt 20 contacts, and secondary transfer printing bias is applied to counter roll 24.The transfer applied at this time is inclined Pressure is (-) polarity identical with the polarity (-) of toner, as a result, from intermediate transfer belt 20 towards the electrostatic force of recording sheet P In toner image, so that the toner image on intermediate transfer belt 20 is transferred on recording sheet P.It should be noted that this When secondary transfer printing bias detected according to by the resistance detection component (not shown) of the resistance for detecting secondary transfer section To resistance determine, and control voltage.

Later, recording sheet P is sent between a pair of of fixing roller in fixing device (example of fixing member) 28 Crimping portion (nip part) at, toner image is fixed to recording sheet P, and fixing image is consequently formed.

As the recording sheet P for transferring toner image, such as can enumerate for electro photography duplicator, printing The plain paper of machine etc..As recording medium, other than recording sheet P, OHP paper etc. can be also enumerated.

In order to further increase the flatness of the imaging surface after fixing, the surface of recording sheet P is preferably smooth, example Such as, it is suitble to using art paper, the printing art paper etc. obtained by the surface for coating plain paper with resin etc..

Recording sheet P after the completion of the fixing of color image is transmitted to discharge unit, thus completes a series of color image shape At operation.

<handle box/toner Cartridge>

The handle box of the present embodiment is illustrated.

The handle box of the present embodiment is equipped with developing parts, which accommodates electrostatic figure described in the present embodiment As developer, and make using the electrostatic charge image developer electrostatic image development being formed on image holding member surface Toner image, the handle box can be disassembled from imaging device.

It should be noted that the handle box of the present embodiment is not limited to above-mentioned construction, it may be such structure It makes: being formed with developing apparatus and other (for example) image holding member, charging unit, electrostatic images that be selected from as needed At least one of other components such as component and transfer member.

An example of the handle box of the present embodiment is shown below, however, it is not limited to this.It should be noted that Major part shown in figure is illustrated, and omits the description to other parts.

Fig. 2 is the organigram for showing the handle box of the present embodiment.

Handle box 200(shown in Fig. 2 is for example) pass through the shell for being provided with installation guide rail 116 and exposure opening portion 118 Body 117 and integration maintains: an example of photoreceptor 107(image holding member), filling around photoreceptor 107 is set One example of electric roller 108(charging unit), an example of developing apparatus 111(developing parts) and photoreceptor sanitizer cartridge Set an example of 113(cleaning member), to be formed as box-like.

It should be noted that 109 indicate exposure device (example of electrostatic image forming member) in Fig. 2,112 It indicates transfer device (example of transfer member), 115 indicate fixing device (example of fixing member), and 300 indicate Recording sheet (example of recording medium).

It is described below the toner Cartridge of the present embodiment.

The toner Cartridge of the present embodiment is such toner Cartridge, accommodates the toner and energy of the present embodiment It is enough to be disassembled from imaging device.Toner Cartridge accommodates supply toner to be mounted in imaging device for being supplied to Developing parts.

Imaging device shown in FIG. 1 is can be from disassembling such structure with toner Cartridge 8R, 8Y, 8M, 8C and 8K thereon The imaging device made, developing apparatus 4R, 4Y, 4M, 4C and 4K are corresponding with colors by toner supply pipe not shown in the figure Toner Cartridge is connected.In addition, when the toner being contained in toner Cartridge tails off, the replaceable toner Cartridge.

[embodiment]

The present invention hereafter will more specifically be described by embodiment, still, as long as being no more than purport model of the invention It encloses, the present invention is not limited to the following examples.

Hereinafter, unless otherwise stated, " part " in mass.

In addition, C.I. pigment orange 38 is known as " PO38 ", C.I. paratonere 185 is known as " PR185 ", and C.I. pigment red 122 claims For " PR122 ".

<measuring method of each physical property>

[weight average molecular weight of resin]

The weight average molecular weight of resin is the molecular weight by having used the gel permeation chromatography of following measuring device (GPC) to carry out The Molecular weight calibration curve of measurement result and monodisperse polystyrene standard sample and calculate.

Measuring device: HLC-8120(Tosoh Co. Ltd. system)

Pillar: TSK gel Super HM-M(Tosoh Co. Ltd. system)

Eluent: tetrahydrofuran

[acid value of resin]

The acid value of resin is to be measured according to JIS K0070-1992 using neutralization titration.

[glass transition temperature of resin]

The glass transition temperature of resin is by differential scanning calorimetry (DSC) obtained DSC curve, according to aforementioned What JIS K7121-1987 " the transition temperature measurement methods of plastics " was obtained.

[volume average particle size of resin particle and toner-particle]

The measuring method of the volume average particle size of resin particle and toner-particle is as described below.

The situation-that partial size is 2 μm or more

Measurement sample: it is added in 5 mass % aqueous solution 2mL of neopelex (surfactant) Gains are added to 100ml or more 150ml electrolyte (Beckman below by 0.5mg or more 50mg particle below Coulter corporation ISOTON-II) in, it is made within decentralized processing 1 minute in ultrasonic disperser.

Measuring device: Coulter Multisizer II(Beckman Coulter corporation), pore diameter is 100 μ m。

Using above-mentioned measurement sample and measuring device, 2 μm of measurement or more 60 μm particle 50,000 below, by granularity Distribution finds out volume average particle sizes distribution.

For the particle size range (channel) divided based on size distribution, volume-cumulative point is drawn since minor diameter side Cloth, using cumulative percentage be 50% when partial size as volume average particle size.

The case where partial size is less than 2 μm-

Measurement sample: adding ion exchange water into particle dispersion, and adjusting solid content is about 10 mass %.

Measuring device: laser diffraction type size distribution meter (Beckman Coulter company corporation LS13320)

Above-mentioned measurement is put into sample cell until suitable concentration with sample, measures scattering strength until reaching Adequately value.For the particle size range (channel) divided based on size distribution obtained, drawn since minor diameter side Volume-cumulative distribution, using cumulative percentage be 50% when partial size as volume average particle size.

<preparation of particulate resin dispersion>

[preparation of particulate resin dispersion (1)]

To in 5 liters of capacity of flask for having agitating device, nitrogen ingress pipe, temperature sensor and rectifying column, in loading Material is stated, 1 hour is spent by temperature and is raised to 220 DEG C, and put into 1 part of tetraethyl titanate relative to 100 parts of above-mentioned materials.It is steaming It while the water generated is removed in distillation, spends temperature was raised to 230 DEG C in 0.5 hour, continues dehydration condensation 1 at such a temperature After hour, cooling reactant.In this way, having synthesized weight average molecular weight is 18,000, acid value 15mgKOH/g, glass transition temperature The polyester resin (1) that degree is 60 DEG C.

To in the container for having temperature-adjusting device and nitrogen replaceable equipment, 40 parts of ethyl acetate and 25 parts of 2- fourths are added Alcohol after being formed as mixed solvent, is slowly added into 100 parts of polyester resin (1) and is allowed to dissolve, it is molten that 10 mass % ammonium hydroxide are added thereto Liquid (acid value relative to resin is 3 times of equivalents in mol) simultaneously stirs 30 minutes.

Then, with inside drying nitrogen displacement container, and temperature is maintained at 40 DEG C, withs 2 while being stirred liquid The speed of part/minute is added dropwise 400 parts of ion exchange water and is emulsified.After completion of dropwise addition, emulsion returns to (20 DEG C to 25 of room temperature DEG C), by being bubbled 48 hours with drying nitrogen under stiring, so that ethyl acetate and 2- butanol is reduced to 1,000ppm hereinafter, obtaining To the particulate resin dispersion for being dispersed with the resin particle that volume average particle size is 200nm.Add into the particulate resin dispersion Enter ion exchange water, adjusts solid content to 20 mass %, be made particulate resin dispersion (1).

[preparation of particulate resin dispersion (2)]

It is added in flask and 4 portions of anionic surfactants (Dow Chemical corporation Dow Fax) is dissolved in 550 The mixed liquor for being mixed with above-mentioned raw materials is added thereto to be emulsified in solution obtained from part ion exchange water.It is slow on one side 50 parts of ion exchange waters for having dissolved 6 parts of ammonium persulfates are added in slowly stirring and emulsifying liquid 10 minutes on one side.Then, it sufficiently carries out After nitrogen displacement in system, it is heated to reaching 75 DEG C inside system in oil bath when stirring flask, continues in this state Emulsion polymerization 4 hours.Obtained being dispersed with as a result, weight average molecular weight be 33,000, glass transition temperature be 53 DEG C, volume it is flat The particulate resin dispersion for the resin particle that equal partial size is 250nm.Ion exchange water is added into the particulate resin dispersion, adjusts Solid content is saved to 20 mass %, is made particulate resin dispersion (2).

<preparation of colorant dispersion>

[preparation of colorant dispersion (1)]

PO38(Clariant Japan Co. Ltd. system NovopermRedHFG) 70 parts

1 part of anionic surfactant (Di-ichi Kogyo Seiyaku Co., Ltd. Neogen RK)

200 parts of ion exchange water

Above-mentioned material is mixed, is dispersed 10 minutes with homogenizer (IKA corporation Ultra Turrax T50).Ion is added Exchanged water makes the solid content in dispersion liquid be 20 mass %, has obtained being dispersed with the colorant that volume average particle size is 190nm The colorant dispersion (1) of particle.

[preparation of colorant dispersion (2)]

Above-mentioned material is mixed, is dispersed 10 minutes with homogenizer (IKA corporation Ultra Turrax T50).Ion is added Exchanged water makes the solid content in dispersion liquid be 20 mass %, has obtained being dispersed with the colorant that volume average particle size is 190nm The colorant dispersion (2) of particle.

[preparation of colorant dispersion (3)]

Above-mentioned material is mixed, is dispersed 10 minutes with homogenizer (IKA corporation Ultra Turrax T50).Ion is added Exchanged water makes the solid content in dispersion liquid be 20 mass %, has obtained being dispersed with the colorant that volume average particle size is 190nm The colorant dispersion (3) of particle.

<preparation of releasing agent dispersion liquid>

[preparation of releasing agent dispersion liquid (1)]

100 parts of paraffin (Japan Sekiscoat Co., Ltd. HNP-9)

1 part of anionic surfactant (Di-ichi Kogyo Seiyaku Co., Ltd. NeogenRK)

350 parts of ion exchange water

Mixing above-mentioned material is simultaneously heated to 100 DEG C, after homogenizer (IKA corporation Ultra Turrax T50) dispersion, With Menton-Gaulin high pressure homogenizer (Gaulin corporation) decentralized processing, obtained being dispersed with volume average particle size be The releasing agent dispersion liquid (1) of the anti-sticking agent particle of 200nm (solid content is 20 mass %).

<embodiment 1>

[preparation of toner-particle]

Above-mentioned material is put into round stainless steel flask, the nitre acid for adjusting pH of 0.1N is added to after 3.5, polychlorostyrene is added Change 30 parts of aqueous solution of nitric acid that aluminum concentration is 10 mass %.Then, homogenizer (IKA corporation Ultra Turrax is used at 30 DEG C T50 after) dispersing, it is heated to 45 DEG C in heater oil bath and is kept for 30 minutes.Then, 100 parts of resin particles are slowly added Dispersion liquid (1) simultaneously keep 1 hour, be added 0.1N sodium hydrate aqueous solution adjust pH to 8.5 after, on one side continue stirring while 85 DEG C are heated to, is kept for 5 hours.Then, 20 DEG C are cooled to 20 DEG C/min of speed, filtering is sufficiently washed with ion exchange water It washs, by the toner-particle (1) for being dried to obtain 7.5 μm of volume average particle size.

[preparation of outside addition toner]

By silica dioxide granule (the Japanese AEROSIL plants of formula meeting of 100 parts of toner-particles (1) and dimethyl-silicon oil processing Society RY200) 0.7 part mixed with Henschel mixer, obtain toner (1).

Using the above method, from external additive is removed in toner (1), measure the PO38 contained in toner-particle and When the content of PR185, the content of PO38 is that the content of 7.0 mass %, PR185 is 0.4 mass %.

[preparation of developer]

Mentioned component sand mill other than ferrite particle is dispersed to prepare dispersion liquid, by the dispersion liquid and iron oxygen Body particle is put into togerther in vacuum outgas formula kneader, is dried under reduced pressure while stirring, thus to obtain carrier.

Relative to 100 parts of above-mentioned carriers, 5 parts of toners (1) are mixed, developer (1) is obtained.

[evaluation of color reprodubility]

Operation, imaging and measurement below all carry out in the environment of 25 DEG C/humidity of temperature 60%.

As the imaging device for forming evaluation image, Fuji Xerox Co., Ltd DocuCentre is prepared Color400CP is fitted into developer (1) in developer, and toner (1) is fitted into toner Cartridge.

Then, on art paper (Fuji Xerox Co., Ltd OS art paper W), the image of monochromatic concentration 100% is formed (5cm × 5cm size, toner amount 4.5g/m²).

For being formed by the CIE1976L of image^*a^*b^*L in color system^*Value, a^*Value and b^*Value, with X-Rite public affairs Take charge of the X-Rite939(pore diameter 4mm of system) arbitrarily measure at 10, calculate L^*Value, a^*Value and b^*The average value of value.

For commercially available color card (PANTONE corporation PANTONE FORMULA GUIDE Solid Coated) PANTONE171C(art paper), also measurement L same as above^*Value, a^*Value and b^*Value, calculates respective average value, as a result, L₁= 63.8 a₁=62.0, b₁=54.1。

Then, it is based on following formula, calculates the color difference Δ E being formed by between image and PANTONE171C.As a result in table 2 It shows.

[mathematical expression 2]

L₁、a₁、b₁It is the L of PANTONE171C^*Value, a^*Value, b^*Value, L₂、a₂、b₂It is the L of the image of embodiment^*Value, a^*Value, b^*Value.

<embodiment 2~36>

[preparation of toner-particle]

It is same as Example 1, still, adjust particulate resin dispersion and colorant dispersion amount make PO38 and The respective content of PR185 is as recorded in table 1, to obtain toner-particle (2)~(36).

[preparation of outside addition toner]

It is identical as preparing for toner (1), still, toner-particle (1) is replaced with toner-particle (2)~(36), is obtained To toner (2)~(36).

[preparation of developer]

It is identical as preparing for developer (1), still, toner (1) is replaced with toner (2)~(36), obtains developer (2)~(36).

[evaluation of color reprodubility]

Toner (1) and developer (1) are replaced with toner (2)~(36) and developer (2)~(36), carry out and is implemented Color reprodubility in example 1 evaluates identical evaluation.As a result it is shown in table 2.

[table 1]

[table 2]

In Examples 1 to 36, Δ E is less than 7.

1~16(of embodiment meets at least one of above-mentioned condition (B1) and condition (B2)) in, Δ E is less than 4.

In Examples 1 to 6 (meeting above-mentioned condition (C)), Δ E is less than 3.

<embodiment 101>

[preparation of toner-particle]

Above-mentioned material is put into round stainless steel flask, is filled with homogenizer (IKA corporation Ultra Turrax T50) Divide mixing dispersion.Then, 0.5 part of polyaluminium chloride is added, continues scatter operation with homogenizer.Then, it is bathed on one side in heater oil Middle stirring is heated to 50 DEG C on one side, is kept for 60 minutes at 50 DEG C.Then, in the sodium hydrate aqueous solution regulation system of 0.5N PH value to after 5.5, sealed flask is heated to 95 DEG C when continuing stirring using magnetic seal, is kept for 5 hours.Reaction terminates Afterwards, cooling, filtering after sufficiently being washed with ion exchange water, is separated by solid-liquid separation by suction strainer formula suction filtration.Gains are further Redisperse is into 40 DEG C of ion exchange water 3L, agitator treating 15 minutes at 300 rpm.It is repeated 5 times, when the pH value of filtrate is 6.6, it when conductivity is 12 μ S/cm, is filtered by suction strainer formula and is separated by solid-liquid separation with No5A filter paper.It then proceedes to be dried in vacuo 12 hours.To obtain the toner-particle (101) that volume average particle size is 7.5 μm.

[preparation of outside addition toner]

It is identical as preparing for toner (1), still, toner-particle (1) is replaced with toner-particle (101), is adjusted Toner (101).

[preparation of developer]

It is identical as preparing for developer (1), still, toner (1) is replaced with toner (101), obtains developer (101).

[evaluation of color reprodubility]

Replace toner (1) and developer (1) with toner (101) and developer (101), carry out in embodiment 1 Color reprodubility evaluates identical evaluation.As a result it is shown in table 3.

<embodiment 102>

[preparation of toner-particle]

Above-mentioned material is mediated with extruder, after being crushed with the pulverizer of surface grinding mode, with air classifier to thin Grain and coarse granule are classified, and 7.5 μm of volume average particle size of toner-particle (102) is obtained.

[preparation of outside addition toner]

It is identical as preparing for toner (1), still, toner-particle (1) is replaced with toner-particle (102), is adjusted Toner (102).

[preparation of developer]

It is identical as preparing for developer (1), still, toner (1) is replaced with toner (102), obtains developer (102).

[evaluation of color reprodubility]

Replace toner (1) and developer (1) with toner (102) and developer (102), carry out in embodiment 1 Color reprodubility evaluates identical evaluation.As a result it is shown in table 3.

<embodiment 103>

[preparation of toner-particle]

Dispersible pigment dispersion (A)-

PO38(Clariant Japan Co. Ltd. system NovopermRedHFG) 20 parts

80 parts of ethyl acetate

Above-mentioned material is dispersed with sand mill, obtains dispersible pigment dispersion (A).

Dispersible pigment dispersion (B)-

PR185(Clariant Japan Co. Ltd. system NovopermCarmineHF4C-N VP502) 20 parts

80 parts of ethyl acetate

Above-mentioned material is dispersed with sand mill, obtains dispersible pigment dispersion (B).

Releasing agent dispersion liquid (A)-

20 parts of paraffin (Japan Sekiscoat Co., Ltd. HNP-9)

80 parts of ethyl acetate

Above-mentioned material is dispersed in the state of being cooled to 10 DEG C with DCP grinding machine, obtains releasing agent dispersion liquid (A).

- C liquid-

Above-mentioned material is mixed, and obtains C liquid.

- D liquid-

124 parts of calcium carbonate dispersion liquid (calcium carbonate: water=40 part: 60 parts)

Cellogen BS-H(Di-ichi Kogyo Seiyaku Co., Ltd. system) 2 99 parts of mass % aqueous solutions

277 parts of water

Above-mentioned material is mixed, and obtains D liquid.

500 parts of C liquid obtain suspension with the 500 parts of mixings of D liquid, and the suspension is small with propeller-type mixer stirring 48 When remove solvent.Then, hydrochloric acid is added, after removing calcium carbonate, washing, dry, classification obtain 7.5 μm of volume average particle size Toner-particle (103).[preparation of outside addition toner]

It is identical as preparing for toner (1), still, toner-particle (1) is replaced with toner-particle (103), is adjusted Toner (103).

[preparation of developer]

It is identical as preparing for developer (1), still, toner (1) is replaced with toner (103), obtains developer (103).

[evaluation of color reprodubility]

Replace toner (1) and developer (1) with toner (103) and developer (103), carry out in embodiment 1 Color reprodubility evaluates identical evaluation.As a result it is shown in table 3.

<embodiment 104>

[preparation of toner-particle]

It is same as Example 1, still, using colorant dispersion (3), and adjust particulate resin dispersion and colorant The amount of dispersion liquid makes the content of each pigment as table 3 is recorded, and obtains toner-particle (104).

[preparation of outside addition toner]

It is identical as preparing for toner (1), still, toner-particle (1) is replaced with toner-particle (104), is adjusted Toner (104).

[preparation of developer]

It is identical as preparing for developer (1), still, toner (1) is replaced with toner (104), obtains developer (104).

[evaluation of color reprodubility]

Replace toner (1) and developer (1) with toner (104) and developer (104), carry out in embodiment 1 Color reprodubility evaluates identical evaluation.As a result it is shown in table 3.

<embodiment 105>

[preparation of toner-particle]

Above-mentioned material is mediated with extruder, after being crushed with the pulverizer of surface grinding mode, with air classifier to thin Grain and coarse granule are classified, and 7.5 μm of volume average particle size of toner-particle (105) is obtained.

[preparation of outside addition toner]

It is identical as preparing for toner (1), still, toner-particle (1) is replaced with toner-particle (105), is adjusted Toner (105).

[preparation of developer]

It is identical as preparing for developer (1), still, toner (1) is replaced with toner (105), obtains developer (105).

[evaluation of color reprodubility]

Replace toner (1) and developer (1) with toner (105) and developer (105), carry out in embodiment 1 Color reprodubility evaluates identical evaluation.As a result it is shown in table 3.

<embodiment 106>

[preparation of toner-particle]

Above-mentioned material is mediated with extruder, after being crushed with the pulverizer of surface grinding mode, with air classifier to thin Grain and coarse granule are classified, and 7.5 μm of volume average particle size of toner-particle (106) is obtained.

[preparation of outside addition toner]

It is identical as preparing for toner (1), still, toner-particle (1) is replaced with toner-particle (106), is adjusted Toner (106).

[preparation of developer]

It is identical as preparing for developer (1), still, toner (1) is replaced with toner (106), obtains developer (106).

[evaluation of color reprodubility]

Replace toner (1) and developer (1) with toner (106) and developer (106), carry out in embodiment 1 Color reprodubility evaluates identical evaluation.As a result it is shown in table 3.

<comparative example 1~7>

[preparation of toner-particle]

Same as Example 1, still, the amount for adjusting particulate resin dispersion and colorant dispersion makes containing for each pigment Amount obtains toner-particle (C1)~(C7) as table 3 is recorded.

[preparation of outside addition toner]

It is identical as preparing for toner (1), still, toner-particle (1) is replaced with toner-particle (C1)~(C7), is obtained To toner (C1)~(C7).

[preparation of developer]

It is identical as preparing for developer (1), still, toner (1) is replaced with toner (C1)~(C7), obtains developer (C1)~(C7).

[evaluation of color reprodubility]

Toner (1) and developer (1) are replaced with toner (C1)~(C7) and developer (C1)~(C7), is carried out and real The color reprodubility applied in example 1 evaluates identical evaluation.As a result it is shown in table 3.

[table 3]

Claims (19)

1. a kind of electrostatic image developing toner containing toner-particle, wherein the toner-particle contains adhesive tree Rouge and colorant simultaneously meet the following conditions (A),

Condition (A): the content of C.I. pigment orange 38 is 6.3 mass % or more, 8.1 mass % hereinafter, and C.I. paratonere 185 Content be 0.1 mass % it is above less than 0.7 mass %.

2. electrostatic image developing toner according to claim 1, wherein the toner-particle meets the following conditions (B1) and at least one of condition (B2),

Condition (B1): the content of C.I. pigment orange 38 is 6.7 mass % or more, 7.3 mass % hereinafter, and C.I. paratonere 185 Content be 0.1 mass % above less than 0.7 mass %,

Condition (B2): the content of C.I. pigment orange 38 is 6.5 mass % or more, 7.5 mass % hereinafter, and C.I. paratonere 185 Content be 0.2 mass % or more, 0.5 mass % or less.

3. electrostatic image developing toner according to claim 1, wherein the toner-particle meets the following conditions (C),

Condition (C): the content of C.I. pigment orange 38 is 6.7 mass % or more, 7.3 mass % hereinafter, and C.I. paratonere 185 Content be 0.2 mass % or more, 0.5 mass % or less.

4. electrostatic image developing toner according to claim 1, wherein adhesive resin in the toner-particle Content be 40 mass % or more, 90 mass % or less.

5. electrostatic image developing toner according to claim 1, wherein described adhesive resin is polyester resin.

6. electrostatic image developing toner according to claim 5, wherein the glass transition temperature of the polyester resin Spending (Tg) is 50 DEG C or more 80 DEG C or less.

7. electrostatic image developing toner according to claim 5, wherein the molecular weight distribution Mw/ of the polyester resin Mn is 1.5 or more 100 or less.

8. electrostatic image developing toner according to claim 1, wherein containing 20 matter in the toner-particle Measure % white pigment below.

9. electrostatic image developing toner according to claim 8, wherein C.I. pigment orange 38, C.I. paratonere 185 And the total amount of white pigment accounts for the 85 mass % or more of the colorant total amount in toner-particle.

10. electrostatic image developing toner according to claim 1 also includes antitack agent, and the antitack agent is molten Solving temperature is 50 DEG C or more 110 DEG C or less.

11. electrostatic image developing toner according to claim 10, wherein the content of the antitack agent is 1 mass % The above 20 mass % or less.

12. electrostatic image developing toner according to claim 1, the grain wherein volume of the toner-particle is averaged Diameter D50v be 2 μm or more 10 μm hereinafter,

Wherein, for the particle size range divided based on measured particle diameter distribution, iterated integral is drawn since minor diameter side Cloth, by cumulative percentage be 50% when partial size be defined as volume average particle size D50v.

13. electrostatic image developing toner according to claim 1, wherein the form factor of the toner-particle SF1 is 110 or more 150 or less.

14. a kind of electrostatic charge image developer includes electrostatic image developing toner described in claim 1.

15. a kind of electrostatic charge image developer includes electrostatic image developing toner as claimed in claim 2.

16. a kind of electrostatic charge image developer includes electrostatic image developing toner as claimed in claim 3.

17. a kind of toner Cartridge accommodates electrostatic image developing toner described in claim 1, and the toner Box can be disassembled from imaging device.

18. a kind of toner Cartridge accommodates electrostatic image developing toner as claimed in claim 2, and the toner Box can be disassembled from imaging device.

19. a kind of toner Cartridge accommodates electrostatic image developing toner as claimed in claim 3, and the toner Box can be disassembled from imaging device.