CN101539740A - Image forming device and colour toner - Google Patents
Image forming device and colour toner Download PDFInfo
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- CN101539740A CN101539740A CN200910128218A CN200910128218A CN101539740A CN 101539740 A CN101539740 A CN 101539740A CN 200910128218 A CN200910128218 A CN 200910128218A CN 200910128218 A CN200910128218 A CN 200910128218A CN 101539740 A CN101539740 A CN 101539740A
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Abstract
The invention relates to an image forming device for forming colourful images and a colour toner for forming the colourful images. The image forming device comprises an image carrying device, a charging device, an exposure device, developing devices, a transfer device and a fixing device. The image forming device is at least provided with three developing devices which use yellow developer, magenta developer and green developer. Visual images on a recording medium are formed by using developer containing yellow colour toner, developer containing magenta colour toner and developer containing green colour toner, which at least contain crystalline polyester resin. The magenta colour toner contains organic paint expressed by chemical structural formula (1); the yellow colour toner contains organic paint expressed by chemical structural formula (2) and/or (3). 100 weight parts of colour toner grains contain the crystalline polyester resin. Colour reproduction areas of yellow, magenta and red are expanded. Dispersing phenomenon of colour toner in the image forming device is reduced.
Description
Technical field
The present invention relates to a kind of xerox mode and form the image processing system of coloured image, and be used to form the toner of this coloured image by duplicating machine, facsimile recorder, printer etc.
Background technology
When forming image in the xerox mode, be on the picture mounting body of photoconductivity material etc., to form the sub-image that forms by static, charged toner-particle is adhered to respect to this electrostatic latent image, form visual image, then, this toner image transfer printing, photographic fixing to the recording medium of paper etc., are become output image.In recent years, the technology of having used the duplicating machine of xerox mode and printer just from monochrome to colored fast-developing, there is the tendency of expansion in the market of colour technology.
Forming coloured image by the color static duplicating method generally is to make as trichromatic yellow, magenta, and the color toner (toner) of three kinds of colors of cyan, the four color colour toners of perhaps adding black are superimposed, carry out the reproduction of whole colors.Therefore, in order to obtain colour reproduction excellent performance, distinct coloured image, be necessary for being carried out to a certain degree smoothing processing by the toner image surface of photographic fixing to reduce light scattering.Because like this, so far the image gloss of color copy machine mostly be 10～50% in～image of high glaze.
In the process of color tonerization, the pigment in the color toner is because of easily aggegation, and hindered the color reproduction of toner, and the color reproduction performance when especially two or more color overlaps is hindered.
Particularly, because the luminosity coefficient of human eye uses magenta coloring agent bring very big influence can for the quality (grade) of coloured image.
Therefore, the magenta toner that a kind of electrostatic image development is used is disclosed in patent documentation 1, the toner of the polyester based resin that this toner system will contain in organic solvent in conjunction with the resulting modification of urea with composition dissolves in organic solvent, again it is dispersed in the water-medium, in water-medium, make it that polyaddition takes place, remove the solvent of this dispersion liquid, clean, contained the toner of colorant at least.This colorant is the magenta toner compound that the electrostatic image development that sets is used.Disclose the magenta toner that a kind of xerox is used in patent documentation 2, it contains binder resin and colorant at least, as above-mentioned colorant, contains the naphthols series pigments with regulation structure at least.In addition, the shape coefficient SF1 of toner is 110～140, and volume average particle size is 2～9 μ m.
Yet above-mentioned toner can't satisfy the requirement of color reproduction scope, and especially the raising by the color reproduction performance of magenta and the yellow redness that forms of being superimposed together is very difficult.Again, when each toner forms image separately, though dispersing of toner is not a lot, using the occasion of at least three kinds of toners, three times the toner problem of dispersing just takes place nearly in the result.
[2004-77664 number public Reported of patent documentation 1] Te Open
[2003-215847 number public Reported of patent documentation 2] Te Open
Summary of the invention
In view of the above problems, problem of the present invention is, a kind of image processing system is provided and is used for the color toner of this image processing system, according to this image processing system and be used for the color toner of this image processing system, when considering the yellow of bringing very big influence to the quality of coloured image, magenta, red color reproduction performance, described toner disperses few in the image processing system machine.
In order to solve above-mentioned problem, the present invention proposes following technical scheme:
(1) a kind of image processing system possesses:
The picture mounting body of mounting sub-image;
Impose the charging device of uniform charging on as the mounting surface;
Electrostatic latent image is written to exposure device on the charged picture mounting surface;
But the feasible developing apparatus that is formed on the electrostatic latent image videoization on the picture mounting surface;
But will be transferred to the transfer device on transfer printing body and/or the recording medium as the video of mounting surface;
But the fixing device that makes the video photographic fixing on the recording medium; It is characterized in that:
Above-mentioned image processing system is provided with three developing apparatuss at least, uses yellow developer, magenta developer and blue developer;
Visual on the aforementioned recording medium similarly is to form with the developer that contains Yellow toner, the developer that contains magenta toner, the developer that contains cyan toner, and these toners contain crystallized polyurethane resin at least;
Magenta toner contains with the organic pigment shown in the following chemical structural formula (1);
Yellow toner contains with the organic pigment shown in following chemical structural formula (2) and/or (3);
The above-mentioned crystallized polyurethane resin that in the toner-particle of 100 weight portions, contains 5～35 weight portions:
Chemical structural formula (1)
Chemical structural formula (2)
Chemical structural formula (3)
In (1) described image processing system, it is characterized in that (2) above-mentioned fixing device is provided with fixing roller and backer roll, or be provided with photographic fixing band and the backer roll that is erected on a plurality of rollers.
(3) in (1) or (2) described image processing system, it is characterized in that, but in the video on aforementioned recording medium, under Yellow toner, form the magenta toner layer.
In (3) described image processing system, it is characterized in that (4) above-mentioned cyan toner contains copper phthalocyanine.
(5) in each described image processing system of (1)-(4), it is characterized in that, except above-mentioned three developing apparatuss, also be provided with the developing apparatus that possesses black reagent.
(6) in each described image processing system of (1)-(5), it is characterized in that, use magenta toner, the L after monochromatic photographic fixing
*a
*b
*In the chromatic diagram, according to X-RITE 938 (D50
2) ID be 1.00 o'clock, a
*Scope be 55～75, b
*Scope be 0～-8.
(7) in each described image processing system of (1)-(6), it is characterized in that, use Yellow toner, the L after monochromatic photographic fixing
*a
*b
*In the chromatic diagram, according to X-RITE 938 (D50
2) ID be 1.00 o'clock, a
*Scope be-2～-12, b
*Scope be 67～90.
(8) in each described image processing system of (1)-(7), it is characterized in that, form with hypograph:
L after magenta toner and the photographic fixing of Yellow toner colour mixture
*a
*b
*In the chromatic diagram, according to X-RITE938 (D50
2) ID be 1.00 o'clock, a
*Scope be 64～68, b
*Scope be 47～55.
(9) in each described image processing system of (1)-(8), it is characterized in that, use the developer that contains release agent.
In each described image processing system of (1)-(9), it is characterized in that (10) using average roundness is the developer of the toner-particle more than 0.94.
(11) in each described image processing system of (1)-(10), it is characterized in that, using the volume average particle size scope of the toner-particle of developer is 3.0～8.0 μ m, and volume average particle size (Dv) is 1.00～1.40 with the scope of the ratio Dv/Dn of granule number mean grain size (Dn).
In each described image processing system of (1)-(11), it is characterized in that (12) scope of the shape coefficient SF-1 of the toner-particle of the developer of use is 100～180, the scope of shape coefficient SF-2 is 100～180.
(13) in each described image processing system of (1)-(12), it is characterized in that, described image processing system is provided with removably cartridge processing, and it is with above-mentioned picture mounting body, and at least one device supporting of selecting from charging device, developing apparatus and cleaning device is one.
(14) a kind of toner is used for image processing system, forms the colorful visual picture on recording medium, it is characterized in that:
This image processing system is provided with:
The picture mounting body of mounting sub-image; And
The developing apparatus of at least three looks uses the developer that contains yellow developer, magenta developer and blue developer, and described toner contains crystallized polyurethane resin;
Described magenta toner contains with the organic pigment shown in the following chemical structural formula (1);
Described Yellow toner contains with the organic pigment shown in following chemical structural formula (2) and/or (3):
Chemical structural formula (1)
Chemical structural formula (2)
Chemical structural formula (3)
(15) a kind of toner is used for image processing system, forms the colorful visual picture on recording medium, it is characterized in that:
This image processing system is provided with:
The picture mounting body of mounting sub-image; And
The developing apparatus of at least three looks uses the developer that contains yellow developer, magenta developer and blue developer, and described toner contains crystallized polyurethane resin;
Described magenta toner contains the organic pigment shown in the above-mentioned chemical structural formula (1);
Described Yellow toner contains with the organic pigment shown in above-mentioned chemical structural formula (2) and/or (3);
Each described image processing system of described toner above-mentioned for being used for (2)-(13).
The following describes effect of the present invention.
As by following in detail, specific description clear and definite, image processing system of the present invention by the technological means that is used to address the above problem, has enlarged color reproduction zone yellow, magenta, and, can enlarge color reproduction zone as the redness of Neutral colour.Have again, reduced magenta toner, the Yellow toner toner in the image processing system phenomenon of dispersing.
Description of drawings
Fig. 1 is used to illustrate shape coefficient SF-1 and shape coefficient SF-2 for the synoptic diagram of expression toner shape.
The figure of the image color that Fig. 2 measures in an embodiment for expression, the evaluation result of color characteristics value.
Fig. 3 is the structure skeleton diagram of relevant image processing system one example of the present invention of expression.
Fig. 4 is the collection of illustrative plates of the X-ray diffraction result of crystallized polyurethane resin among expression the present invention.
Fig. 5 is the collection of illustrative plates of X ray result one example of expression toner of the present invention.
Symbol description is as follows:
4 developing apparatuss
10 intermediate transfer belts
14 backing rolls
15 backing rolls
16 backing rolls
17 intermediate transfer belt cleaning devices
18 images form means
20 tandem type image processing systems
21 exposure devices
22 secondary transfer printing devices
23 rollers
24 secondary transfer printing devices
25 fixing devices
26 photographic fixing bands
27 backer rolls
28 turning devices
30 document boards
32 contact glasses
33 first moving bodys
34 second moving bodys
35 imaging lens
36 read sensors
40 photoreceptors
42 paper-feed rolls
43 paper storehouses
44 paper feeding cassettes
45 separate rollers
46 paper supply passages
47 carrying rollers
48 paper supply passages
49 registration rollers
50 paper-feed rolls
51 hands send frame
52 separate rollers
53 hands send the paper supply passage
55 switch pawl
56 exit rollers
57 row's paper discs
62 primary transfer means
100 copy device main bodys
200 paper feeding worktable
300 scanners
The automatic Handling device of 400 original copys (ADF)
Embodiment
Below, explanation is used to implement optimal morphology of the present invention with reference to illustrated embodiment, in following example, though to inscape, kind, combination, shape, configuration waits and has done various qualifications relatively,, these only exemplify, and the present invention is not limited thereto.
Fig. 3 is the structural representation skeleton diagram of the image processing system of an embodiment of the invention.Its detailed structure and working method describe in detail in the back.Image processing system of the present invention possesses three developing apparatuss at least and forms coloured image, this colorful visual image on the recording medium is formed by Yellow toner, magenta toner, cyan toner at least, wherein, magenta toner uses the toner that contains with the organic pigment shown in the above-mentioned chemical structural formula (1), and Yellow toner uses the toner that contains with the organic pigment shown in above-mentioned chemical structural formula (2) and/or (3).
Can confirm, owing to the magenta toner that crystallized polyurethane resin of the present invention is used to contain with the organic pigment shown in the above-mentioned chemical structural formula (1), perhaps contain with the Yellow toner shown in above-mentioned chemical structural formula (2) and/or (3), color reproduction performance when therefore monochromatic is good, and, enlarged as the color reproduction zone of the redness of the Neutral colour of yellow and magenta.
Though its reason is still indeterminate, but can infer: when toner contains crystallized polyurethane resin, crystallized polyurethane resin by noncrystalline polyester resin and fusion, with above-mentioned chemical structural formula (1), (2), (3) organic pigment shown in disperses easily, and its result has enlarged the color reproduction zone of toner.
Be used for crystallized polyurethane resin of the present invention (A), it is desirable to by the resin that contains the crystallised fat adoption ester resin formation of 60 moles of % in this molecular backbone with the ester bond structure division shown in the following general formula (1) at least.
-CO-R-COO-(CH
2)
n-O-general formula (1)
(in the above-mentioned general formula (1)-CO-R-CO-represents the residue of straight chain shape unsaturated aliphatic dicarboxylic acids, is that carbon number is 2～20, it is desirable to 2～4 straight chain shape unsaturated aliphatic base.N is 2～20, it is desirable to 2～6 integer).
The existence of general formula (1) structure can be used solid C
13NMR confirms.
Can enumerate from maleic acid, fumaric acid, 1 the positive malonic acid of 3-, 1, the straight chain shape unsaturated aliphatic base of straight chain shape unsaturated aliphatic dicarboxylic acids such as the positive succinic acid of 4-as the object lesson of above-mentioned straight chain shape unsaturated aliphatic base.
In the above-mentioned general formula (1)-O-(CH
2) n-O-represents the residue of straight chain shape aliphatic dihydroxy alcohol.
Object lesson as straight chain shape aliphatic dihydroxy alcohol residue at this moment can be expressed as by ethylene glycol, 1 ammediol, 1,4-butylene glycol, 1, the residue that the straight chain shape aliphatic dihydroxy alcohol of 6-hexanediol etc. is derived.Because vibrin (A) so compare with the occasion of using aromatic binary carboxylic acid, demonstrates the action effect of easy formation crystalline texture with the sour composition of straight chain shape unsaturated aliphatic dicarboxylic acids as it.
Vibrin (A) can be by making (i) by straight chain shape unsaturated aliphatic dicarboxylic acids or its reactive derivatives (acid anhydrides; the lower alkyl esters of carbon number 1～4; acyl halides etc.) polybasic carboxylic acid composition of Gou Chenging and the polyol component that (ii) is made of straight chain shape aliphatic dihydroxy alcohol carry out polycondensation reaction according to usual way and make.
At this moment, as required, added a spot of other polybasic carboxylic acids in the polybasic carboxylic acid composition in the past.The unsaturated aliphatic dicarboxylic acids that side chain is arranged except (i) in the polybasic carboxylic acid of this moment, (ii) outside the representative examples of saturated aliphatic polybasic carboxylic acid of representative examples of saturated aliphatic dicarboxylic acids and representative examples of saturated aliphatic tricarboxylic acid etc., also comprise the (iii) aromatic series polybasic carboxylic acid of aromatic binary carboxylic acid and aromatic series tricarboxylic acid etc.The addition of these polybasic carboxylic acids for whole carboxylic acids, is generally 30 moles below the %, better is 10 moles below the %, in the polyester that obtains has crystalline scope, add aptly.
Object lesson as the polybasic carboxylic acid that can add as required can be enumerated: malonic acid, succinic acid, glutaric acid, hexane diacid, suberic acid, decanedioic acid, citraconic acid, phthalic acid, m-phthalic acid, the dicarboxylic acids of terephthalic acid (TPA) etc.; 1,2,4-benzenetricarboxylic acid acid anhydride, 1,2,4-benzenetricarboxylic acid, 1,2, the 5-benzenetricarboxylic acid, 1,2,4-cyclohexane tricarboxylic acids, 1,2,4-naphthalene tricarboxylic acids, 1,2,5-hexane tricarboxylic acids, 1,3-dicarboxyl-2-methylene carboxyl propane, 1,2,7, the polybasic carboxylic acid that the ternary of 8-octane tetrabasic carboxylic acid etc. is above etc.
As required, can be toward the polyvalent alcohol more than the ternary of interpolation except a spot of fatty family side chain dibasic alcohol or cyclic diols in the above-mentioned polyol component.The addition of these polyvalent alcohols for whole alcohol, is generally 30 moles below the %, better is 10 moles below the %, in the polyester that obtains has crystalline scope, add aptly.
Object lesson as the polyvalent alcohol that can add as required can be enumerated: 1, and two (methylol) cyclohexanes of 4-, polyglycol, bisphenol-A epoxy ethane addition product, bisphenol-A epoxy propane addition product, glycerine etc.
Consider that from the low-temperature fixing performance molecular weight distribution of vibrin (A) is suitable narrow, and its lower molecular weight is desirable.In the molecular weight distribution of vibrin (A), in the GPC method molecular weight distribution of the solvable composition of its o-dichlorobenzene, it is desirable to, its weight-average molecular weight (Mw) 5500～6500, its number-average molecular weight (Mn) 1300～1500, and Mw/Mn is than 2～5.
Above-mentioned molecular weight distribution about vibrin (A) is based on graph of molecular weight distribution, and it is that (M: molecular weight) as transverse axis, weight % is as the longitudinal axis log.Graph of molecular weight distribution being used for vibrin of the present invention (A) it is desirable to, and has the scope of molecular weight peak value at 3.5～4.0 (weight %), and, it is desirable to, the half-breadth of its peak value is below 1.5.
In the scope that the heat-resisting retention of toner does not worsen, wish glass transition temperature (Tg) and the softening temperature [T (F of vibrin (A)
1/2)] low.But usually, its Tg is 80～130 ℃, and desirable is 80～125 ℃, its T (F
1/2) be 80～130 ℃, desirable is 80～125 ℃.As Tg and T (F
1/2) be higher than above-mentioned scope, then because the photographic fixing lower limit temperature of toner has improved the low-temperature fixing mis-behave of toner.By above-mentioned thermal characteristics is become appropriately, will help the low-temperature fixing performance of toner of the present invention, can set low fixing temperature, environment also there is good influence.
Whether the polyester resin particle among the present invention has crystallinity can be seen that whether having peak value to exist on the X-ray diffraction pattern confirms with powder x-ray diffraction.At the X-ray diffraction pattern that is used for crystallized polyurethane resin of the present invention (A), on 20 °～25 ° the position of its 2 θ, there is a diffraction peak at least, it is desirable to, its 2 θ is at least (i) 19 °～20 °, (ii) 21 °～22 °, (iii) 23 °～25 ° and (iv) to have diffraction peak on 29 °～31 ° the position be its feature.
Fig. 4 shows the X-ray diffraction result of crystallized polyurethane resin of the present invention, and Fig. 5 shows the X-ray diffraction result's of a toner of the present invention example.Powder x-ray diffraction is measured and is used Electricity Machine RINT1100 of science, and at the copper ball pipe, tube voltage-electric current is to measure with the wide-angle goniometer under the 50kV-30mA condition.
Above-mentioned crystallized polyurethane resin importantly contains the resin of 5～35 weight portions for toner-particle.During less than 5 weight portions, color reproduction zone stenosis is narrow.When surpassing 35 weight portions, because the cause of crystalline resins film can take place to form on the photoreceptor, with the not matched situation of the retention of toner.
At this moment, the amount that contains the colorant in the toner of whole binder resins (above-mentioned crystallized polyurethane resin+other resins) is lacked than common toner, and that desirable is 20 weight %～2 weight %, and that better is 15 weight %～3 weight %.By using above-mentioned specific magenta coloring agent is dispersed in magenta toner of the present invention and the Yellow toner colour mixture that constitutes in the specific binder resin of more amount with lower concentration, make that from all degree of depth levels that mix toner layer fully the reflected light of amount takes place to mix fully, brightness and colourity are good, therefore, also can accomplish to present the good mixing redness of tone during medium tone.
The organic pigment of representing with the chemical structural formula (1) of above-mentioned magenta toner is solubility AZO pigments (azo lake).So far, the pigment that magenta toner is used is used AZO pigments such as solubility AZO pigments, insoluble azo colour always, the organic pigment of many rings pigment of quinacridone etc.AZO pigments also has naphthols system, oxynaphthoic acid system.Wherein, as the naphthols series pigments, use PR 49 so far, PR 68, PR 184 etc. always.As quinacridone, use PR 122 always, PR 209, PR 206 etc.But, as the magenta toner that is used for image processing system of the present invention, use be that C.I.PR 269 with the organic pigment shown in the chemical structural formula (1) of oxynaphthoic acid system.This pigment has narrow absorption region in the wavelength coverage of 500～600nm, simultaneously, when using, in 400～500nm wavelength coverage and 600～700nm wavelength coverage, high reflectivity is arranged, therefore reproduced bright-coloured magenta with an amount of above-mentioned crystallized polyurethane resin.
Especially, photographic fixing on the recording medium of transfer paper, thin-film sheet etc. after, with X-RITE938 (D50
2) ID that measures of densimeter is 1.00 o'clock, L
*a
*b
*A in the chromatic diagram (CIE1976)
*Be in 55～75, b
*Be in 0～-8 the scope.Add colour compensating filter and measure concentration,, can unify to measure by being made as certain state to concentration with the mankind.If a
*Less than 55 or b
*Less than 0, when with the toner blending of other color, the color reproduction performance of medium tone is low.If a
*Surpass 75 or b
*Surpass-8, the amount of pigment then must be added, and it is big that the covering power of toner becomes.When with the toner blending of other color, same, the color reproduction performance of medium tone is low.It is desirable to L
*Be 45～60, but be not that be far from it can not.If L
*Less than 45, then color is not bright-coloured, obfuscation; When with the toner blending of other color, the color reproduction performance of medium tone can be low.If L
*Surpass 60, seem when monochromatic and turn white, same, when with the toner blending of other color, the color reproduction performance of medium tone can be low.
This Yellow toner contains with the organic pigment shown in above-mentioned chemical structural formula (2) and/or (3), and these two all is insoluble AZO pigments.It is the organic pigment of many rings pigment of (threne) that Yellow toner so far uses acetoacetic acid arylide bisdiazo system, the AZO pigments of acetoacetate imidazolone system, quinacridone, intellectual circle always.Especially the C.I.PY13 of acetoacetic acid arylide bisdiazo system, PY17 is widely used.
Yet what be used for that the Yellow toner of image processing system of the present invention uses is with (bisdiazo system) C.I.PY180 of the organic pigment shown in the chemical structural formula (2) and/or with the organic pigment shown in the chemical structural formula (3) (bisdiazo system) C.I.PY155.This pigment is halogen atom not, this pigment has narrow absorption region in the wavelength coverage of 400～500nm, simultaneously, when using with an amount of above-mentioned crystallized polyurethane resin, in 500～600nm wavelength coverage and 600～700nm wavelength coverage, high reflectivity is arranged, therefore reproduced bright-coloured yellow.
Particularly photographic fixing on the recording medium of transfer paper, thin-film sheet etc. after with X-RITE938 (D50
2) ID that measures of densimeter is 1.00 o'clock, L
*a
*b
*A in the chromatic diagram (CIE1976)
*Be in-2～-12, b
*Be in 67～90 the scope.Add colour compensating filter and measure concentration,, can unify to measure by being made as certain state to concentration with the mankind.If a
*Less than-2 or b
*Less than 67, when with the toner blending of other color, the color reproduction performance of medium tone is low, if a
*Surpass-12 or b
*Surpass 90, the amount of pigment then must be added, and it is big that the covering power of toner becomes.When with the toner blending of other color, same, the color reproduction performance of medium tone is low.
At this moment, if L
*Less than 82, color is not bright-coloured, obfuscation, and when with the toner blending of other color, the color reproduction performance of medium tone can be low.If L
*Surpass 92, seem when monochromatic and turn white that difficulty takes place monochromatic colorrendering quality sometimes.
Colour mixture by magenta toner and Yellow toner is reproduced red (R), with X-RITE938 (D50
2) ID that measures of densimeter is 1.00 o'clock, in photographic fixing after L
*a
*b
*A in the chromatic diagram
*Be in 64～68, b
*Be in 47～55 the scope.L at this moment
*a
*b
*Color reproduction scope in the chromatic diagram can be by the pigment amount of magenta toner and Yellow toner, and adhering to etc. of toner adjusted, but owing to be in this scope, so can enlarge the reproduction regions from skin color to Zhu's look ink paste look.
Compare with the occasion that does not contain crystallized polyurethane resin so far, the occasion that contains crystallized polyurethane resin about the present invention is why than the R look color reproduction wide ranges of the colour mixture by above-mentioned specific M pigment and Y pigment, though be not because its mechanism does not explain as yet fully, but situation so far is, this crystallized polyurethane resin helps the dispersion of this specific pigment, this reason that may to be its result exert an influence to the spectrum of wavelength.
a
*Less than 64 or b
*Color reproduction zone less than 47 o'clock is narrow, can not have the redness of various medium tones again now.If a
*Surpass 68 or b
*Surpass 55, the amount of pigment then must be added, and it is big that the covering power of toner becomes, and can not have the redness of various medium tones equally again now.Red reproduction is important color for the human inter alia of performance, because the reproduction range of medium tone is narrow, compare with sensitized paper, the subliming type of photo etc., owing to used organic pigment, the transparency is poor, so particularly in the big occasion of covering power, red colorrendering quality is low.Therefore, in image processing system of the present invention, stipulated the two the color reproduction scope of organic pigment of the organic pigment of magenta toner and Yellow toner, so can access wide red reproduction performance.L
*Less than 42 o'clock, color was not bright-coloured, and obfuscation can not be reproduced bright-coloured redness.L
*Surpass at 48 o'clock and can seem and turn white, scope that can reproducing color therewith can become narrow.
At this moment, be formed with the magenta toner layer below the Yellow toner of the visual image on aforementioned recording medium.The chemical structural formula (2), the chemical structural formula (3) that are used for the yellow uitramarine of toner of the present invention are because covering power is low, so do not cover the organic pigment that is positioned at lower floor.Particularly, narrow with the photo-absorption region of the organic pigment shown in chemical structural formula (2), the chemical structural formula (3), so do not hinder and the red reproduction that forms by the magenta toner that magenta pigment constituted that is positioned at lower floor.Again, below this Yellow toner, used the magenta toner that contains with the magenta pigment shown in the chemical structural formula (1), so can access red wide color reproduction performance.
In image processing system of the present invention, used the toner that contains release agent.As the means of hot sticky attached (hot offset) problem that in the photographic fixing operation of image formation process, prevents toner, can enumerate the method that makes toner contain release agent.The release agent that is included in the toner is subjected to heat and pressure when photographic fixing, the distortion that is accompanied by toner appears at the surface of toner-particle, demonstrates the demolding performace to fixing member.This release agent it is desirable to not expose the surface at toner-particle, but is enclosed in the inside.This is because expose on the wax on the surface surface attached to the frictional electrification parts of magnetic carrier etc., makes the triboelectric behavior of toner low, demonstrates the cause that flowing property that compendency makes toner worsens again.
As release agent, the low melt wax that fusing point is 50～120 ℃ plays more effective effect as release agent in the dispersion of binder resin between fixing roller and toner interface.Thus, needn't as oil, be coated on release agent on the fixing roller, demonstrate effect for high temperature adhesion.Can enumerate following material as such wax composition.Can enumerate as the wax class: Brazil wax, cotton wax, haze tallow, department of botany's wax of rice wax etc., beeswax, the animal of sheep oil etc. is a wax, ceresine, mineral such as ceresin are wax, and paraffin, microcrystalline wax, pertroleum waxes such as vaseline etc.Except these natural waxes, can also enumerate Fischer-Tropsch wax (Fischer-Tropsch wax), the Synthin wax of Tissuemat E etc., ester, ketone, the synthetic wax of ether etc. etc.Can also use the fatty acid amide of 12-hydroxy stearic acid acid amides, stearic amide, phthalic anhydride acid amides, chlorinated hydrocabon etc., and as the crystallization macromolecule that long alkyl is arranged on the homopolymer of the polyacrylate of the polymethylacrylic acid n-octadecane base ester of low-molecular-weight crystalline polymer resin, polymethylacrylic acid dodecyl ester etc. or multipolymer (for example, the multipolymer of acrylic acid n-octadecane base ester-Jia Jibingxisuanyizhi etc.), the side chain etc.
Again, image processing system of the present invention uses is that the average roundness of toner-particle is the toner more than 0.94.Some repeatability excellence when average roundness 0.94 is above, the transfer printing performance is also good, considers from the viewpoint that can obtain high image quality, and this is desirable.When average roundness was high, toner development, transfer printing were even, and the situation of adhering at shadow tone portion, panchromatic accent portion toner caking is few, evenly distributes.Therefore, in that toner is stacking and during with colour superimposition, the maldistribution of color is few, can reproduce uniform medium tone.Discontented 0.94 o'clock of average roundness, the shape of toner-particle departs from sphere, is difficult to obtain sufficient transfer printing performance or spotless high quality graphic.The uncertain particle of such shape is many for the contact point facing to the level and smooth medium of photoreceptor etc., and because charge concentration is at the most advanced and sophisticated position of projection, Van der Waals force and reflection image force rate are above-mentioned than spheric grain adhesion height.Therefore, in the static printing operation, in the toner that the uncertain particle of shape has been mixed in spheric grain, spheric grain moves selectively, causes the image decolouring phenomenon of word segment and lines part.The toner that left behind must be removed for developing procedure after this, and generation must be provided with cleaning device, or produces the low problem of toner efficient (ratio of employed toner when forming image).
It is desirable to, in the toner circularity less than the ratio of 0.93 toner-particle below 30%.Surpass in the big toner of 30% such roundness deviation at aforementioned proportion, charged speed and level range are wide, and carried charge distributes and broadens, so be unfavorable.
The circularity of toner is for to detect particle, to use the value of the girth of the circle identical with the particle projection area divided by the girth of particle projection image with optical means.Specifically, use flow-type particle image analyser (FPIA-2000, SYSMEX company goods) to measure.Add 100～150 milliliters in water having removed solid content impurity in advance in the container of regulation, adds 0.1～0.5 milliliter of surfactant, add 0.1～0.5 mensuration sample that restrains degree again as spreading agent.With ultrasonic disperser the suspension that has disperseed sample is carried out 1～3 minute dispersion treatment, dispersion liquid concentration is 3000～10000/μ l, measures the shape and the distribution of toner with said apparatus.
The particle size range of the volume averaging of the toner-particle of the toner that image processing system of the present invention uses is 3.0～8.0 μ m, and volume average particle size (Dv) is 1.00～1.40 with ratio (Dv/Dn) scope of granule number mean grain size (Dn).Suitable volume average particle size is 3.0～6.0 μ m, and Dv/Dn is 1.00～1.15, uses such toner, and in the image of colour, the reproduction regions of medium tone is wide, and the narrow bright image in zone can be absorbed.
The particle diameter of toner is more little, and the high-quality image of high resolving power is favourable for obtaining, and even so, but is disadvantageous for the cleaning performance.The occasion that this scope of by volume average particle diameter ratio is little during with the two-component system developer, on the surface of toner fusion attached to magnetic carrier, reduces the charged ability of magnetic carrier in long-term whipping process in the developing apparatus.During with the one component system developer, toner forms film on developer roll, because the thin layerization of toner the toner fusion takes place easily attached to the situation on the members such as scraper plate.The containing ratio of these phenomenons and attritive powder has much relations, and especially the particle of the particle diameter of toner below 3 μ m surpasses at 10% o'clock, because attached to the degree height on the magnetic carrier, the occasion of pursuing security performance is brought obstacle.
On the contrary, when by volume average this scope of particle diameter ratio of toner-particle is big, be difficult to obtain the high-quality image of high resolving power.Medium tone repeatability in the coloured image is low, the granularity chap, and the quality of coloured image is low.
When Dv/Dn surpassed 1.40, carried charge distributed and broadens, and definition is low, so be unfavorable.
The mean grain size of toner and grain distribute and can use Coulter Counter-TA-II or CoulterMulti-Size-II (the two all is the goods of Coulter company) to measure.The present invention uses Coulter Counter-TA-II type, connects the man-computer communication's device (day Ke Ji Yan System) and the PC9801 PC (NEC System) of number distribution of output particle and volume distributed median, measures.
The scope of the shape coefficient SF-1 of the toner-particle of the toner that image processing system of the present invention uses is 100～180, and the scope of shape coefficient SF-2 is 100～180.
Fig. 1 is the synoptic diagram of expression toner-particle shape, and wherein (a) is used to illustrate shape coefficient SF-1, (b) is used to illustrate shape coefficient SF-2.
So-called toner-particle of the present invention is spherical form in fact, and SF-1 represents with shape coefficient, and the ideal value scope of this SF-1 is 100～180.What shape coefficient SF-1 herein represented is the ratio of toner shape sphericity, represents with following formula (1).The maximum length MXLNG of the shape that toner is projected on the two dimensional surface to be produced square divided by graphics area A, multiply by the value of 100 π/4.
SF-1={ (MXLNG)
2/ A} * (100 π/4)-------Shi (1)
The value of SF-1 is 100 o'clock, and the shape of toner is a proper sphere shape, and the big more then shape of the value of SF-1 is uncertain more.The value of SF-1 surpasses at 180 o'clock, though clean-up performance improves, owing to come in nowhere with spherical form, carried charge distributes and broadens, and it is many that blurred background becomes, and picture quality is low.Because of the resistance of mobile air, the development that electric field causes, transfer printing are not according to line of electric force, and toner develops between fine rule, and the image homogeneity is low, and picture quality is low.Especially when color image reproduction, the shadow tone position, it is many that the uneven color at solid position becomes, the granularity chap, color image quality is low.
The uneven of the toner-particle surface of toner of the present invention represents that with shape coefficient SF-2 the ideal value scope of this SF-2 is 100～180.What shape coefficient SF-2 herein represented is the rough ratio of toner shape, represents with following formula (2).The girth P of the shape that toner is projected on the two dimensional surface to be produced square divided by graphics area A, multiply by the value of 100/4 π.
SF-2={ (P)
2/ A} * (100/4 π)------formula (2)
It is uneven that the value of SF-2 is that 100 o'clock toner surface do not exist, and the value of SF-2 is big more, and then toner surface is uneven obvious more.The value of SF-2 surpasses at 180 o'clock, though clean-up performance improves, because the uneven of toner surface increased, carried charge distributes and broadens, and it is many that blurred background becomes, and picture quality is low.When color image reproduction, the uneven color of shadow tone portion, panchromatic accent portion becomes many, the granularity chap, and picture quality is low.Even the value of SF-2 is 100 o'clock smooth surfaces, also can carry out cleaning with the scraper plate cleaning mode during with above-mentioned toner, and, because that carried charge distributes is narrow, so can obtain high-quality image.
It is that other adjuvant of 80～800nm is desirable that toner in the image processing system of the present invention uses by the average particle size range of number.The flowing property of toner as a supplement, other adjuvant of developing performance and chargeding performance can preferably use inorganic particles.The primary particle size of this inorganic particles is advisable with 5 μ m～2 μ m, and that especially desirable is 80nm～500nm.Desirable addition is 0.01～2.0 weight %.Object lesson as inorganic particles can be enumerated: for example, and silicon dioxide, aluminium oxide, titanium dioxide, barium titanate, magnesium titanate, calcium titanate, strontium titanates, zinc paste, tin oxide, silica sand, clay, mica, wollastonite, zeyssatite, chromium oxide, cerium oxide, iron oxide, antimony trioxide, magnesium oxide, zirconia, barium sulphate, barium carbonate, lime carbonate, silit, silicon nitride etc.In addition, can also enumerate the macromolecular particulate, for example by the polycondensation system of emulsifier-free emulsion polymerization, suspension polymerization, the resulting polystyrene of dispersin polymerization, methacrylate and acrylate copolymer and silicone, benzoguanamine, nylon etc., the polymer beads of thermoset resin.
Carry out surface treatment with such flow improver additive, can improve hydrophobic performance, even under high humidity, also can prevent the deterioration of flowing property and chargeding performance.For example can enumerate; Silane coupling agent, silanizing agent has the silicone couplet of fluoro-alkyl, and organic titanate is a coupling agent, and aluminium is coupling agent, silicone oil, modified silicon oils etc. are as desirable surface conditioning agent.
As owing to remove the cleaning performance promoter of the developer after the transfer printing that remains on optical conductor and the primary transfer medium, can enumerate: for example, as zinc stearate, calcium stearate, fatty acid metal salts such as stearic acid; The polymer particles of making by emulsifier-free emulsion polymerization etc. as polymethylmethacrylate particulate, ps particle etc. etc.The narrow particle size distribution of desirable polymer particles, volume average particle size are 0.01～1 μ m.
When the other adjuvant of preparation, add the inorganic particles of the hydrophobic silica attritive powder enumerated the front etc. in the developer, mixing again.The mixing of other adjuvant can be with general powder mixer, but the equipment that it is desirable to be equipped with chuck, can regulate internal temperature.Certainly, be advisable with the revolution that can change mixer, rotating speed, time, temperature etc.Can when beginning, distribute high load capacity, then distribute lower load, also can conversely.Example as operable mixing apparatus can be enumerated: V-Mixer, shaker mixer, row enlightening (レ one デ ィ ゲ, German company name) mixer, Nauta mixer, Heng Xieer mixer etc.
(charged controlling agent)
Can use known charged controlling agent as above-mentioned charged controlling agent.For example, can use: nigrosine based dye, triphenylmethane based dye, contain the chromium metal complex dyes, molybdic acid chelate pigment, rhodamine based dye, alcoxyl base system amine, quaternary ammonium salt (comprising the fluorine modified quaternary ammonium salt), alkylamide, the monomer of phosphorus or compound, the monomer of tungsten or compound, fluorine is an activator, the slaine of salicylic acid metal salt and salicyclic acid derivatives etc.Concrete can enumerate: the Bontron of nigrosine based dye (trade name) O3, the Bontron P-51 of quaternary ammonium salt, the Bontron S-34 of containing metal azo dyes, oxynaphthoic acid is the E-82 of metal complex, salicylic acid is the E-84 of metal complex, phenol is the E-89 (above is Orient company goods) of condensation product, the TP-302 of quaternary ammonium salt molybdenum complex, TP-415 (above is hodogaya chemical Gong Ye society goods), Copy charge (trade name) the PSY VP2038 of quaternary ammonium salt, Copy Blue (the trade name of triphenylmethane derivative, a kind of disperse blue) PR, the Copy charge NEG VP2036 of quaternary ammonium salt, Copy charge NX VP434 (above is ヘ キ ス ト company goods), LRA-901, boron complex LR-147 (Japanese カ one リ ッ ト company goods), copper phthalocyanine, perylene, quinacridone, azo pigment in addition, has sulfonic group, carboxyl, the macromolecular compound of the functional group of quaternary ammonium salt etc.Wherein, it is desirable especially using the material of control toner band negative polarity.
The consumption of charged controlling agent be according to binder resin kind, whether use adjuvant and comprise that the manufacture method of the toner of process for dispersing decides, and there is no the qualification of single meaning as required.But the binder resin with per 100 weight portions is advisable with the scope of 0.1～10 weight portion.Desirable scope is with 0.2～5 weight portion.When surpassing 10 weight portions, the charging property of toner is excessive, and the effect of charged controlling agent lowers and the electrostatic attraction of developer roll increases, and causes the flowability decline of developer and the attenuating of image color.
Can be with above-mentioned charged controlling agent and release agent with masterbatch and resin melting mixing, can certainly be in dissolving, add when being dispersed in the organic solvent.
(non-crystalline polyester)
Polycondensation reaction by polyol compound and polybasic carboxylic acid compound obtains polyester.
As polyol compound (PO), can enumerate the above polyvalent alcohol (TO) of dibasic alcohol (DIO) and ternary, it is desirable to the potpourri of independent use (DIO) or use (DIO) and a spot of (TO).As dibasic alcohol (DIO), can enumerate alkylene glycol (ethylene glycol, 1,2-propylene glycol, 1, ammediol, 1,4-butylene glycol, 1,6-hexanediol etc.); Inferior hydrocarbyl ether glycol (diglycol, triethylene glycol, dipropylene glycol, polyglycol, polypropylene glycol, polytetramethylene glycol etc.); Ester ring type glycol (1,4 cyclohexane dimethanol, hydrogenation bisphenol-A etc.); Bisphenols (bisphenol-A, Bisphenol F, bisphenol S etc.); The addition product of the alkylene oxide of above-mentioned ester ring type glycol (oxirane, epoxypropane, epoxy butane etc.); The addition product of the alkylene oxide of above-mentioned bisphenols (oxirane, epoxypropane, epoxy butane etc.) etc.It is desirable to carbon number in these compounds and be the addition product of the alkylene oxide of 2～12 alkylene glycol and bisphenols, it is desirable to the addition product of the alkylene oxide of bisphenols especially, and with carbon number be that the And of 2～12 alkylene glycol uses.Can enumerate multi-alcohol (glycerine, trimethylolethane, trimethylolpropane, pentaerythrite, D-sorbite etc.) more than 3～8 yuan or 8 yuan as the polyvalent alcohol more than the ternary (TO); The phenols (trisphenol PA, phenolic novolac, cresols-line style (thermoplasticity) phenolics etc.) that ternary is above; The addition product of the alkylene oxide of the phenols that above-mentioned ternary is above etc.
As polybasic carboxylic acid (PC), can enumerate the above polybasic carboxylic acid (TC) of dicarboxylic acids (DIC) and ternary, it is desirable to the potpourri of independent use (DIC) or use (DIC) and a spot of (TC).Can enumerate alkylene dicarboxylic acid (succinic acid, hexane diacid, decanedioic acid etc.) as dicarboxylic acids (DIC); Chain docosene dicarboxylic acid (maleic acid, fumaric acid etc.); Aromatic dicarboxylic acid (phthalic acid, m-phthalic acid, terephthalic acid (TPA), naphthalenedicarboxylic acid etc.).It is desirable to carbon number in these compounds and be 4～20 chain docosene dicarboxylic acid and carbon number and be 8～20 aromatic dicarboxylic acid.Can enumerate carbon number as the polybasic carboxylic acid more than the ternary (TC) is 9～20 aromatic series polybasic carboxylic acid (1,2,4-benzenetricarboxylic acid, 1,2,4,5-benzenetetracarboxylic acid etc.).As polybasic carboxylic acid (PC), also can react with polyvalent alcohol (PO) with the acid anhydrides or the lower alkyl esters (methyl esters, ethyl ester, isopropyl ester etc.) of above-claimed cpd again.
The ratio of polyvalent alcohol (PO) and polybasic carboxylic acid (PC) in equivalent proportion [OH]/[COOH] of hydroxyl [OH] with carboxyl [COOH], is generally 2/1～1/1, and desirable is 1.5/1～1/1, and better is 1.3/1～1.02/1.
The polycondensation reaction of polyvalent alcohol (PO) and polybasic carboxylic acid (PC) is at metatitanic acid four fourth oxygen esters, under the existence of the catalyst for esterification reaction that dibutyl tin oxide etc. are known, be heated to 150～280 ℃, as required, in decompression, the water that generates is heated up in a steamer, obtain the polyester of hydroxyl.It is desirable to, the hydroxyl value of polyester is more than 5.The acid number of polyester is generally 1～30, it is desirable to 5～20.It is electronegative easily to keep acid number, and during photographic fixing, the compatibility of toner and recording chart is good, can improve the low-temperature fixing performance on recording chart.But acid number surpasses at 30 o'clock, for charged stability, the tendency of deterioration is arranged for the variation of environment particularly.
Weight-average molecular weight is 10,000～400,000, it is desirable to 20,000～200,000.Weight-average molecular weight was less than 10,000 o'clock, and heat-resisting adhesion property worsens, so be not satisfied.Surpassing 400,000 then because of the low-temperature fixing mis-behave, is not satisfied.
The manufacture method of toner below is described.Though here is comparatively ideal manufacture method, is not limited to this.
(manufacture method of toner)
As an example pulverizing system, after at first binder resin, colorant covering release agent, charge control agent and other adjuvant etc. fully being mixed with the mixer as the Heng Xieer mixer, with the hot milling machine of the two roller Bandelier Banbury mixeies of batch (-type), continous way biaxial extruder, continous way single shaft mixing roll etc. the material that constitutes is carried out fully mixingly, cut off after the calendering cooling.Mixing thing after cutting off is carried out fragmentation, carry out coarse crushing with hammer-mill, again with utilizing the final grinder of jet-stream wind, mechanical type comminutor to carry out fine pulverizing, utilize the classifier of the classifier that used the revolution air-flow and Condar (Coanda) effect to be classified into the granularity of regulation.And then utilize mixer to add inorganic subparticle in addition, mix forming toner.
Toner of the present invention can mix with magnetic carrier as two-component developing agent.At this moment, the ratio that contains that carrier in the developer and toner are desirable is that for the carrier of 100 weight portions, toner is 1～10 weight portion.Can use particle diameter as magnetic carrier is the material known in the past such as iron powder, ferrite powder, magnetite powder, magnetic resin of 20～200 μ m degree.As cladding material, can enumerate amino resins, for example: urea-formaldehyde resin, Melamine resin, benzoguanamine resin, urea resin, polyamide, epoxy resin etc.Can use polyethylene kind and Polyvinylidene resinoid, for example: acryl resin, plexiglass, polyacrylonitrile resin, polyvinyl acetate resins, polyvinyl alcohol resin, polyvinyl butyral resin, the polystyrene resin of polystyrene resin and styrene acrylic copolymer resin etc., the alkenyl halide resin of Polyvinylchloride etc., the polyester based resin of polyethylene terephthalate resin and polybutylene terephthalate resin etc., polycarbonate-based resin, polyvinyl resin, polyfluoroethylene resin, polyvinylidene fluoride resin, poly-trifluoro-ethylene resin, polyhexafluoropropylene resin, the multipolymer of vinylidene and acrylic monomers, the multipolymer of vinylidene and fluorothene, the fluoro trimer of the trimer of tetrafluoroethene and vinylidene and non-fluoromonomers etc., and silicones etc.Also can contain conducting powder in the covering resin as required.Can use metal powder, carbon black, titanium dioxide, tin oxide, zinc paste etc. are as conducting powder.The desirable mean grain size of these conducting powder is below the 1 μ m.Mean grain size is greater than 1 μ m, and resistance is difficult to control.
Toner of the present invention can be as one component system magnetic color tuner or the nonmagnetic toner without carrier.
Image processing system of the present invention uses toner as described above.Fig. 3 is the summary construction diagram of a relevant example of image processing system of the present invention.Symbol among the figure (100) is the copy device main body, and (200) are the feedboard for paper that is mounted in it, and (300) are the scanners that is contained on the copy device main body (100), and (400) are the master copy automatic conveying devices (ADF) that is contained on (300).
In copy device main body (100), be provided with four tandem type image processing systems (20) arranged side by side, they are provided with image and form means (18), and this image forms means (18) and is provided with the various means that are used for implement electrostatic copying processes such as charging, development, cleaning on every side as the photoreceptor (40) of sub-image mounting body.
The top of tandem type image processing system (20) is provided with exposure device (21), and it utilizes laser to photoreceptor (40) the formation sub-image that exposes according to image information.With the position of the opposed direction of each photoreceptor (40) of tandem type image processing system (20) on be provided with the intermediate transfer belt (10) that forms by annular tape member.Dispose the primary transfer means (62) of intermediate transfer belt (10) between the centre that make on the position relative with photoreceptor (40), it will be transferred to intermediate transfer belt at the versicolor toner image that photoreceptor (40) upward forms and get on.
Below in intermediate transfer belt (10) disposes secondary transfer printing device (22), and it will overlap at the toner image on the intermediate transfer belt (10) and be transferred in the lump on the transfer paper of being come by feedboard for paper (200) conveying.Secondary transfer printing device (22) is gone up formation by the secondary transfer printing band (24) as the endless belt that is erected between two rollers (23), be configured to compress, the toner image on the intermediate transfer belt (10) is transferred on the transfer paper by intermediate transfer belt (10) and backing roll (16).Be provided with fixing device (25) with the image fixing on the transfer paper in the side of secondary transfer printing device (22).Fixing device (25) is backer roll (27) to be pushed, be connected to annular photographic fixing band (26) go up formation.
Above-mentioned secondary transfer printing device (22) possesses the paper feeding function that the transfer paper after the image transfer printing is carried towards fixing device (25).Certainly,, also can dispose transfer roll and contactless charger, but then be difficult to have both paper feeding function at that rate as secondary transfer printing device (22).
In illustrative example, in the below of secondary transfer printing device (22) and fixing device (25), have turning device (28) abreast with above-mentioned tandem type image processing system (20), it can turn at the transfer paper of the two sides of transfer paper document image.
Form at image on the developing apparatus (4) of means (18), use the developer that contains toner.Developing apparatus (4) is by by developer mounting body mounting, supplying developing agent, with the opposed position of photoreceptor (40) on apply alternately electric field, make the image development on the photoreceptor (40).Electric field makes the developer activation by applying alternately, can make the carried charge distribution of toner narrower, can improve developing performance.This image forms the left side of means (18) from Fig. 3, has taken in black toner, Yellow toner, magenta toner, cyan toner.Therefore, when forming coloured image, on intermediate transfer belt, begin to form black toner layer, Yellow toner layer, magenta toner layer, cyan toner layer from below.But, be to be transferred on the transfer paper when secondary transfer printing, owing to be reverse cause, on transfer paper, begin to form black toner layer, Yellow toner layer, magenta toner layer, cyan toner layer from above.Therefore, Yellow toner is a cambium layer on magenta layer.
Above-mentioned developing apparatus (4) can be made with photoreceptor (40) and be supported, loads and unloads with respect to the image processing system main body cartridge processing that forms freely integratedly.This cartridge processing also can comprise other charging facility, and the cleaning means constitute.So, obtain interchangeability and convenience, can easily carry out the maintenance of image processing system.
The course of action of above-mentioned image processing system is as follows.
During beginning, original copy is placed on the document board (30) of master copy automatic conveying device (400), perhaps master copy automatic conveying device (400) is opened, original copy is placed on the contact glass (32) of scanner (300), again master copy automatic conveying device (400) is shut, original copy is pushed down with it.
Then, press starting switch not shown in the figures, original copy is being placed under the situation of master copy automatic conveying device (400), carry original copy after contact glass (32) upward moves, and under situation about original copy being placed on the contact glass (32), directly driven sweep device (300) moves first moving body (33) and second moving body (34).Then, to reflect again from the reflected light on original copy surface in source emissioning light by first moving body (33) to second moving body (34), utilize the mirror reflects of second moving body (34) to enter read sensor (36), read the original copy content by imaging len (35).
Again, press not shown starting switch, utilize CD-ROM drive motor not shown in the figures to order about backing roll (14), (15), a rotation in (16), and make the driven rotation of two other backing roll, make intermediate transfer belt (10) rotate carrying like this.Simultaneously, form in the means (18), its photoreceptor (40) is rotated, on each photoreceptor (40), form the monochrome image of black, yellow, magenta, cyan respectively at each image.Then, in intermediate transfer belt (10) carrying, these monochrome images are transferred on the intermediate transfer belt (10) in turn, form synthetic coloured image.
On the other hand, if press starting switch not shown in the figures, a paper feed roller in the paper feed roller (42) of selection feedboard for paper (200) makes its rotation, send paper in the carton from the multistage carton of purchasing the paper storehouse (44), utilize every paper of separate roller (45) to separate and enter paper supply passage (46), utilization carrying roller (47) carrying paper imports the paper supply passage (48) in the duplicating machine main body (100), stops to bumping registration roller (49).
Perhaps, paper feed roller (50) is rotated, send hand and send paper on the frame (51), utilize every paper of separate roller (52) to separate to enter hand and send paper supply passage (53), same, support and bump registration roller (49) and stop.
Then, consistent with the combined color image on the intermediate transfer belt (10), registration roller (49) is rotated, paper is sent between intermediate transfer belt (10) and the secondary transfer printing device (22), by secondary transfer printing device (22) transfer printing, coloured image is recorded on the paper.
Paper after the image transfer printing transmits with the secondary transfer printing device, sends into fixing device (25), by fixing device (25) heating and pressurization, after the image of photographic fixing transfer printing, switch with switching pawl (55), by exit roller (56) paper is sent, on the row's of overlaying paper disc (57).Perhaps utilize the switching nail-press to change, make paper enter transfer paper turning device (28), there the paper upset is imported the position of transfer printing again, after reverse side is also noted image, utilize exit roller (56) that paper is passed out on row's paper disc (57).
On the other hand, the intermediate transfer belt (10) after the image transfer printing is removed the toner that remains on the intermediate transfer belt after the image transfer printing by intermediate transfer belt cleaning device (17), by tandem type image processing system (20), forms image in order to once more.
[embodiment]
Further specify the present invention by the following examples, but the present invention is defined in this.
Again, below said " part " refer to weight portion, " % " refers to weight %.
The synthesis example of＜crystallized polyurethane resin 〉
[synthesis example 1 (crystallized polyurethane resin No.1's is synthetic)]
Toward being equipped with nitrogen device ingress pipe, add in the dehydrating tube, 5 liters of four-hole boiling flasks of stirrer and thermopair
1,4-butylene glycol: 23.75 moles
Ethylene glycol: 1.25 moles
Fumaric acid: 22.75 moles
1,2,4-benzenetricarboxylic anhydride: 1.65 moles
Quinhydrones: 4.8 grams
Reaction is warming up to 200 ℃ of reactions 1 hour under 160 ℃ after 5 hours, reacts 1 hour under 8.3kPa again, obtains crystallized polyurethane resin No.1.
The synthesis example of＜noncrystalline vibrin 〉
[synthesizing of titanium-containing catalyst (a)]
Toward cooling tube, stirrer being housed and can be in liquid phase adding 80% aqueous solution of two (triethanolamineization) titaniums of dihydroxy in the reactor of the nitrogen ingress pipe of bubbling, in liquid phase, rouse under the condition of nitrogen bubble, slowly be warming up to 90 ℃, react 4 hours (hydrolysis reaction) down at 90 ℃, obtain two (triethanolamineization) titaniums of dihydroxy.
In following embodiment,, can obtain being used for titanium-containing catalyst of the present invention (a) respectively with same synthetic method.
[synthesizing of linear polyester resin (AX1-1)]
2 moles of PO addition products that add 430 parts of bisphenol-As in the reactor that cooling tube, stirrer and nitrogen ingress pipe are housed, 3 moles of PO addition products of 300 parts of bisphenol-As, 257 parts of terephthalic acid (TPA)s, 65 parts of phthalic acids, 10 parts of maleic anhydrides, and 2 parts of two (triethanolamineization) titaniums of the dihydroxy as polycondensation catalyst.Flow down the water that will generate at 220 ℃ with nitrogen and distill away, allow reaction carry out simultaneously 10 hours.Then, be decompressed to 5～20mm Hg and react and become at 5 o'clock to acid number product is taken out, be cooled to after the room temperature brokenly, obtain linear polyester resin (AX1-1).
(AX1-1) do not contain the THF insolubles, its acid number is 7, and hydroxyl value is 12, and Tg is 60 ℃, and Mn is 6940, and Mp is 19100.Molecular weight is that the ratio of the composition below 1500 accounts for 1.2%
[synthesizing of non-linearity vibrin (AX2-1)]
2 moles of PO addition products that add 350 parts of bisphenol-As in the reactor that cooling tube, stirrer and nitrogen ingress pipe are housed, 3 moles of PO addition products of 326 parts of bisphenol-As, 278 parts of terephthalic acid (TPA)s, 40 parts of maleic anhydrides, and 2 parts of two (triethanolamineization) titaniums of the dihydroxy as polycondensation catalyst.Flow down the water that will generate at 230 ℃ with nitrogen and distill away, allow reaction carry out simultaneously 10 hours.Then, be decompressed to 5～20mm Hg and react and become 2 to acid number and be cooled to 180 ℃ when following, add 62 part 1,2,4-benzenetricarboxylic anhydride, normal pressure airtight condition reaction down after 2 hours take out product, are cooled to after the room temperature brokenly, obtain linear polyester resin (AX2-1).(AX2-1) do not contain the THF insolubles, its acid number is 35, and hydroxyl value is 17, and Tg is 69 ℃, and Mn is 3920, and Mp is 11200.Molecular weight is that the ratio of the composition below 1500 accounts for 0.9%.
[amorphous polyester resin A's is synthetic]
In kneader (コ Application テ ィ ニ ァ ス), jacket temperature is 150 ℃ with 400 parts (AX1-1) and 600 parts (AX2-1), and the residence time is a melting mixing under 3 minutes the condition.Broken after changing 4 minutes with the steel band cooler molten resin being cooled to 30 ℃, obtain amorphous polyester resin A of the present invention.
The Production Example of＜toner 〉
Embodiment 1
Prescription:
＜mixing comminuting method is made toner 〉
The manufacturing of＜toner (C-1) 〉
After following method for producing toner and toner fully mixed with blender, with biaxial extruder melting mixing (melting temperature: 140 ℃, extruded velocity: 10kg/ hour, rolling nip: 2mm, place after 48 hours and pulverize) afterwards, with its pulverizing, classification, the particle diameter that obtains with volume averaging is the former toner of 7.6 μ m.With respect to 100 parts of former toners, mix the hydrophobic silica (handled with hexamethyldisilane base amine on the surface, and the particle diameter of primary particle is 0.02 μ m) of 0.4 part the other adjuvant of conduct with the Heng Xieer mixer, obtain the toner (C-1) of cyan.Mixing condition is 1500rpm, and circulation mixes eight times, and each circulation is to stop for 60 seconds after stirring for 60 seconds.
*35 parts of crystallized polyurethane resin No.1
*65 parts of amorphous polyester resin A
*5 parts of Brazil waxs (fusing point: 81 ℃)
*2 parts of charged controlling agents (slaine of salicylic acid derivant)
*6 parts of colorants (copper phthalocyanine blue pigment)
The manufacturing of＜toner (M-1) 〉
Manufacturing at＜toner (C-1)〉in except changing following content, the manufacturing toner uses the same method.
*9 parts of colorants (P.R.269 pigment)
The manufacturing of＜toner (M-2) 〉
Manufacturing at＜toner (C-1)〉in except changing following content, the manufacturing toner uses the same method.
*9 parts of colorants (P.R.122 pigment)
The manufacturing of＜toner (M-3) 〉
Manufacturing at＜toner (C-1)〉in except changing following content, the manufacturing toner uses the same method.
*9 parts of colorants (P.R.184 pigment)
The manufacturing of＜toner (Y-1) 〉
Manufacturing at＜toner (C-1)〉in except changing following content, the manufacturing toner uses the same method.
*15 parts of colorants (P.Y.180 pigment)
The manufacturing of＜toner (Y-2) 〉
Manufacturing at＜toner (C-1)〉in except changing following content, the manufacturing toner uses the same method.
*15 parts of colorants (P.Y.155 pigment)
The manufacturing of＜toner (Y-3) 〉
Manufacturing at＜toner (C-1)〉in except changing following content, the manufacturing toner uses the same method.
*15 parts of colorants (P.Y.185 pigment)
Configuration according to table 1 is arranged, and according to following evaluation method each toner is estimated.
＜evaluation method 〉
(1) L
*a
*b
*Aberration in the chromatic diagram
Use the picture appraisal machine of image processing system, be determined at yellow (Y), magenta (M), the image color of 100% image area under the single color state of cyan (C) is determined at yellow (Y) respectively, magenta (M), each black (B) of 50% o'clock of cyan (C), green (G), the image color of the Neutral colour of red (R), the color characteristics value when mensuration concentration is " 1.0 ".
When yellow (Y) toner and other toner (magenta (M) and cyan (C)) colour mixture, make the superincumbent layer of Yellow toner layer.
Use X-Rite 938 mensuration machines (X-Rite company goods) to measure image color and color characteristics value.Its result such as table 2 and shown in Figure 2.
(2) disperse in the machine
Preparation is the binary developer that copper-Zn ferrite carrier 95 weight % constitute of 40 μ m by the toner 5 weight % that estimated with the mean grain size that has covered silane resin.Use this developer, use per minute can print the evaluation machine not (the Ipsio Color 8100 with the Ricoh corporate system serve as that the basis is transformed into the machine that can estimate) of the paper of 45 A4 sizes, print continuously, estimate according to following evaluation method.
Use the evaluation machine of image processing system, under single color state, export continuously after the image graph of 150,000 50% image areas, judge the dirty dirty situation that developing apparatus closely is close in the image processing system, tell grade with the method for range estimation.This value is not being seen dirty be when dirty " 5 ", can see dirty be when dirty " 4 " a little, dirty dirty be " 3 " when obviously visible, be " 2 " when toner is piled up, toner is piled up but also is diffused into developing apparatus local time in addition is " 1 ".This result is as shown in table 3.
[table 1]
| Magenta toner | Yellow toner | Cyan toner | |
| Embodiment 1 | Toner (M-1) | Toner (Y-1) | Toner (C-1) |
| Embodiment 2 | Toner (M-1) | Toner (Y-2) | Toner (C-1) |
| Comparative example 1 | Toner (M-1) | Toner (Y-3) | Toner (C-1) |
| Comparative example 2 | Toner (M-2) | Toner (Y-1) | Toner (C-1) |
| Comparative example 3 | Toner (M-1) | Toner (Y-1) | Toner (C-1) |
| Comparative example 4 | Toner (M-3) | Toner (Y-1) | Toner (C-1) |
Remarks:, when magenta toner and Yellow toner colour mixture, make magenta toner be positioned at top layer only at comparative example 3.
[table 2]
[table 3]
| Magenta toner | Yellow toner | Cyan toner | |
| Embodiment 1 | 4.5 | 4.5 | 4.5 |
| Embodiment 2 | 4.5 | 4.5 | 4.5 |
| Comparative example 1 | 4.5 | 4.5 | 4.5 |
| Comparative example 2 | 3 | 3 | 3 |
| Comparative example 3 | 4.5 | 4.5 | 4.5 |
| Comparative example 4 | 4 | 4 | 4 |
[about result's explanation]
According to table 3, comparative example 1 and 3 result are 4.5, and the result is good.Bad place is that red scope is narrow.And comparative example 4 is thought owing to having used PR184, so b
*Narrow, dispersing in the machine is worse off.
Above with reference to description of drawings example of the present invention, but the present invention is not limited to above-mentioned example.Can do all changes in the technology of the present invention thought range, they all belong to protection scope of the present invention.
Claims (15)
1. image processing system possesses:
The picture mounting body of mounting sub-image;
Impose the charging device of uniform charging on as the mounting surface;
Electrostatic latent image is written to exposure device on the charged picture mounting surface;
But the feasible developing apparatus that is formed on the electrostatic latent image videoization on the picture mounting surface;
But will be transferred to the transfer device on transfer printing body and/or the recording medium as the video of mounting surface;
But the fixing device that makes the video photographic fixing on the recording medium; It is characterized in that:
Above-mentioned image processing system is provided with three developing apparatuss at least, uses yellow developer, magenta developer and blue developer;
Visual on the aforementioned recording medium similarly is to form with the developer that contains Yellow toner, the developer that contains magenta toner, the developer that contains cyan toner, and these toners contain crystallized polyurethane resin at least;
Magenta toner contains with the organic pigment shown in the following chemical structural formula (1);
Yellow toner contains with the organic pigment shown in following chemical structural formula (2) and/or (3);
The above-mentioned crystallized polyurethane resin that in the toner-particle of 100 weight portions, contains 5～35 weight portions:
Chemical structural formula (1)
Chemical structural formula (2)
Chemical structural formula (3)
2. image processing system as claimed in claim 1 is characterized in that above-mentioned fixing device is provided with fixing roller and backer roll, or is provided with photographic fixing band and the backer roll that is erected on a plurality of rollers.
3. image processing system as claimed in claim 1 or 2 is characterized in that, but in the video on aforementioned recording medium, forms the magenta toner layer under Yellow toner.
4. image processing system as claimed in claim 3 is characterized in that above-mentioned cyan toner contains copper phthalocyanine.
5. as each described image processing system of claim 1 to 4, it is characterized in that, except above-mentioned three developing apparatuss, also be provided with the developing apparatus that possesses black reagent.
6. as each described image processing system of claim 1 to 5, it is characterized in that, use magenta toner, the L after monochromatic photographic fixing
*a
*b
*In the chromatic diagram, according to X-RITE 938 (D50
2) ID be 1.00 o'clock, a
*Scope be 55～75, b
*Scope be 0～-8.
7. as claim the 1 to 6 each described image processing system, it is characterized in that, use Yellow toner, the L after monochromatic photographic fixing
*a
*b
*In the chromatic diagram, according to X-RITE 938 (D50
2) ID be 1.00 o'clock, a
*Scope be-2～-12, b
*Scope be 67～90.
8. as each described image processing system of claim 1 to 7, it is characterized in that, form with hypograph:
L after magenta toner and the photographic fixing of Yellow toner colour mixture
*a
*b
*In the chromatic diagram, according to X-RITE938 (D50
2) ID be 1.00 o'clock, a
*Scope be 64～68, b
*Scope be 47～55.
9. as each described image processing system of claim 1 to 8, it is characterized in that, use the developer that contains release agent.
10. as each described image processing system of claim 1 to 9, it is characterized in that using average roundness is the developer of the toner-particle more than 0.94.
11. each described image processing system as claim 1 to 10, it is characterized in that, using the volume average particle size scope of the toner-particle of developer is 3.0～8.0 μ m, and volume average particle size (Dv) is 1.00～1.40 with the scope of the ratio Dv/Dn of granule number mean grain size (Dn).
12. each the described image processing system as claim 1 to 11 is characterized in that the scope of the shape coefficient SF-1 of the toner-particle of the developer of use is 100～180, the scope of shape coefficient SF-2 is 100～180.
13. each described image processing system as claim 1 to 12, it is characterized in that, described image processing system is provided with removably cartridge processing, and it is with above-mentioned picture mounting body, and at least one device supporting of selecting from charging device, developing apparatus and cleaning device is one.
14. a toner is used for image processing system, forms the colorful visual picture on recording medium, it is characterized in that:
This image processing system is provided with:
The picture mounting body of mounting sub-image; And
The developing apparatus of at least three looks uses the developer that contains yellow developer, magenta developer and blue developer, and described toner contains crystallized polyurethane resin;
Described magenta toner contains with the organic pigment shown in the following chemical structural formula (1);
Described Yellow toner contains with the organic pigment shown in following chemical structural formula (2) and/or (3):
Chemical structural formula (1)
Chemical structural formula (2)
Chemical structural formula (3)
15. a toner is used for image processing system, forms the colorful visual picture on recording medium, it is characterized in that:
This image processing system is provided with:
The picture mounting body of mounting sub-image; And
The developing apparatus of at least three looks uses the developer that contains yellow developer, magenta developer and blue developer, and described toner contains crystallized polyurethane resin;
Described magenta toner contains the organic pigment shown in the above-mentioned chemical structural formula (1);
Described Yellow toner contains with the organic pigment shown in above-mentioned chemical structural formula (2) and/or (3);
Described toner is for being used for each described image processing system of claim 2 to 13.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP070177/08 | 2008-03-18 | ||
| JP2008070177A JP2009223217A (en) | 2008-03-18 | 2008-03-18 | Image forming apparatus and toner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101539740A true CN101539740A (en) | 2009-09-23 |
Family
ID=41122979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910128218A Pending CN101539740A (en) | 2008-03-18 | 2009-03-18 | Image forming device and colour toner |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2009223217A (en) |
| CN (1) | CN101539740A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104137001A (en) * | 2012-02-29 | 2014-11-05 | 佳能株式会社 | Cyan toner containing compound having azo skeleton |
| CN104880917A (en) * | 2014-02-28 | 2015-09-02 | 株式会社理光 | Red Toner For Developing Electrostatic Latent Image, Developer And Image Forming Apparatus |
| CN104914687A (en) * | 2014-03-10 | 2015-09-16 | 株式会社理光 | White toner,image forming method and image forming apparatus |
| CN107247394A (en) * | 2017-08-07 | 2017-10-13 | 湖北远东卓越科技股份有限公司 | It is a kind of to be used to heat carbon dust of fixation process and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4175505B2 (en) * | 2002-05-24 | 2008-11-05 | 株式会社リコー | Color toner for electrostatic image development |
| JP4360982B2 (en) * | 2004-07-01 | 2009-11-11 | 株式会社リコー | Toner for developing electrostatic image and method for producing the same, colorant, developer for developing electrostatic image, and image forming method |
| JP4451256B2 (en) * | 2004-09-13 | 2010-04-14 | 株式会社リコー | Image forming apparatus |
| JP4887028B2 (en) * | 2005-11-09 | 2012-02-29 | 株式会社リコー | Image forming apparatus and electrostatic latent image developing toner kit |
-
2008
- 2008-03-18 JP JP2008070177A patent/JP2009223217A/en active Pending
-
2009
- 2009-03-18 CN CN200910128218A patent/CN101539740A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104137001A (en) * | 2012-02-29 | 2014-11-05 | 佳能株式会社 | Cyan toner containing compound having azo skeleton |
| CN104880917A (en) * | 2014-02-28 | 2015-09-02 | 株式会社理光 | Red Toner For Developing Electrostatic Latent Image, Developer And Image Forming Apparatus |
| CN104914687A (en) * | 2014-03-10 | 2015-09-16 | 株式会社理光 | White toner,image forming method and image forming apparatus |
| CN107247394A (en) * | 2017-08-07 | 2017-10-13 | 湖北远东卓越科技股份有限公司 | It is a kind of to be used to heat carbon dust of fixation process and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009223217A (en) | 2009-10-01 |
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