CN101551605A - A toner applied to electrophotography and an image forming device - Google Patents
A toner applied to electrophotography and an image forming device Download PDFInfo
- Publication number
- CN101551605A CN101551605A CNA2009101303138A CN200910130313A CN101551605A CN 101551605 A CN101551605 A CN 101551605A CN A2009101303138 A CNA2009101303138 A CN A2009101303138A CN 200910130313 A CN200910130313 A CN 200910130313A CN 101551605 A CN101551605 A CN 101551605A
- Authority
- CN
- China
- Prior art keywords
- toner
- silica
- electrophotography
- weight portion
- developer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Developing Agents For Electrophotography (AREA)
Abstract
The invention provides a toner applied to electrophotography and an image forming device. Compared with toner, the toner applied to electrophotography of the invention has 100 weight parts of resin and contains 0.01-10 weight parts of cyclodextrin, a first silica with average particle diameter of 20-40nm, and a second silica with average particle diameter of 8-14nm.
Description
The cross reference of related application
The present invention is based on the rights and interests of the right of priority of the provisional application (61/040886) of submission on March 31st, 2008.In addition, the present invention is based on the rights and interests of the right of priority of the provisional application (61/040892) of submission on March 31st, 2008.The content of these two provisional application is quoted at this and is attached among the application.
Technical field
The present invention relates to be used for carrying out toner applied to electrophotography and the image processing system that image forms by the electrofax mode.
Background technology
All the time, for the purpose etc. of protection environment, the toner recycle electro-photography apparatus that the toner of powder is utilized again gets most of the attention.In such device, the toner that remains on the photoreceptor reclaims by clearer, and this toner is returned to developer, thereby carries out the utilization again of toner repeatedly.At this moment, the external additive (additive) that breaks away from from the toner surface is deposited in the developer along with each repeated use.Especially, the titanium dioxide that uses in order to ensure image color under low temperature environment is because resistance is low, so there is following problem: in case surpass a certain amount of, then carried charge dies down, the charged of reversed polarity taken place, on recording chart, show as image fog (photographic fog), make image bad, thereby cause the lifetime of device.
In addition, use silica as the method for the external additive of toner by known to the people, though use the silica of small particle diameter in order to obtain images with high image quality, but such silica especially becomes the state of imbedding the toner surface in the low environment of temperature or in the low environment of humidity, the flowability of developer reduces, the carried charge step-down, thus cause producing the such problem of photographic fog.
On the other hand,,, compare the charged controlling agent of the chloride type of the preferred effect of using change with inhibition zone electric weight with the charged controlling agent that uses known metal complex type as charged controlling agent (CCA) for the life-span of extension fixture.At this, the known toner (for example, opening flat 10-186729 number) that use cyclodextrin (polysaccharide) compound is arranged as charged controlling agent with reference to the open communique spy of Jap.P..
Yet the carried charge of this cyclodextrin uprises easily, and therefore the control difficulty of charged control, exists the figure problem like this that is difficult to obtain stable image quality.
Summary of the invention
The present invention in view of the above problems, purpose is to provide the toner applied to electrophotography and the image processing system that can access images with high image quality and be applicable to long-life electro-photography apparatus.
According to an aspect of the present invention, toner applied to electrophotography is provided, and it comprises: is that cyclodextrin compound, the mean grain size of 0.01 weight portion to 10 weight portion is first silica of 20nm to 40nm and second silica that mean grain size is 8nm to 14nm with respect to toner with resin 100 weight portions.
According to a second aspect of the invention, toner applied to electrophotography is provided, it is used for toner recirculating system that toner is utilized again, and this toner applied to electrophotography comprises: is that cyclodextrin compound, the mean grain size of 0.01 weight portion to 10 weight portion is that first silica, the mean grain size of 20nm to 40nm is second silicas of 8nm to 14nm and to be the titanium dioxide that 0.15 weight portion to 1.2 weight portion adds with respect to toner 100 weight portions with respect to toner with resin 100 weight portions.
According to a third aspect of the invention we, provide image processing system, it comprises: sub-image formation portion is used for forming electrostatic latent image by optionally exposing on photoreceptor; And development section, be used for to develop by the electrostatic latent image that above-mentioned sub-image formation portion forms and obtaining image by developer, this image processing system uses toner applied to electrophotography, wherein, above-mentioned toner applied to electrophotography comprises: is that cyclodextrin compound, the mean grain size of 0.01 weight portion to 10 weight portion is first silica of 20nm to 40nm with respect to toner with resin 100 weight portions; And mean grain size is second silica of 8nm to 14nm.
According to a forth aspect of the invention, provide image processing system, it comprises: sub-image formation portion is used for forming electrostatic latent image by optionally exposing on photoreceptor; And development section, be used for to develop by the electrostatic latent image that above-mentioned sub-image formation portion forms and obtaining image by developer, above-mentioned image processing system utilizes above-mentioned developer again, this image processing system uses toner applied to electrophotography, wherein, above-mentioned toner applied to electrophotography comprises: are cyclodextrin compounds of 0.01 weight portion to 10 weight portion with respect to toner with resin 100 weight portions, mean grain size is first silica of 20nm to 40nm, mean grain size is second silica of 8nm to 14nm, and with respect to toner 100 weight portions to be the titanium dioxide that 0.15 weight portion to 1.2 weight portion adds.
According to the present invention, the silica (first silica) of the big particle diameter (mean grain size be about 20nm to 40nm) of use except the silica (second silica) of small particle diameter (mean grain size is about 8nm to 14nm) uses cyclodextrin compound as charged controlling agent as the external additive of powder toner.Therefore, stir the silica of small particle diameter by the silica of big particle diameter, thereby can prevent mobile the reduction, and can suppress the reduction of the carried charge of small particle diameter silica, simultaneously, by space (space) effect of big particle diameter silica, can come the inhibition zone electric weight to uprise by cyclodextrin compound as charged controlling agent.
Description of drawings
Fig. 1 is the skeleton diagram of formation of image processing system that the toner egr mode of an embodiment of the invention is shown; And
Fig. 2 is the figure that illustrates based on the experimental result of the comparison of the toner of each embodiment of the present invention and other toners.
Embodiment
Below, with reference to accompanying drawing, an embodiment under the situation of the duplicating machine that toner applied to electrophotography of the present invention is applied to toner recycle electrofax mode is described.The sectional view of the major part of the duplicating machine of present embodiment as shown in Figure 1.
The major part of duplicating machine shown in Figure 1 comprises the photoreceptor 1 as image-carrier.Photoreceptor 1 rotates along diagram arrow a direction.
Around photoreceptor 1, dispose: charged charger 2; Exposure device 3 is to charged photoreceptor 1 exposure laser beam B and form electrostatic latent image; Developing apparatus 5 develops to electrostatic latent image; Transfer device 7, with developer image on paper; Stripping off device 9 will be peeled off with paper from photoreceptor 1; And cleaning device 13, the residual developer on the cleaning photoreceptor 1; Or the like.Cleaning device 13 comprises with the photoreceptor butt and is used to remove the cleaning balde 15 of the developer on the photoreceptor and is used for removing electric light 16 to what the photoreceptor 1 of having removed developer removed electricity.
, carried to photoreceptor 1 by illustrated carton taking-up never with paper by conveying roller 17 grades.Be transferred carrying to not shown fixing device by conveying belt 19 of developer image on the photoreceptor by transfer device 7 with paper.
Developing apparatus 5 contains developer D as initial developer.The tow-component developer of developer D for constituting by toner and carrier.To be elaborated to developer D in the back.
For the amount that the initial developer of supply consumes, on developing apparatus 5, be provided with the toner supply portion 21 that is used to accommodate supply usefulness developer in development.Between this toner supply portion 21 and developing apparatus 5, be provided with toner mixing portion 23.Be provided with recirculator 29 between this toner mixing portion 23 and cleaning device 13, the used developer replenishing that this recirculator 29 is used for reclaiming by cleaning device 13 carries out the utilization again of developer to toner mixing portion 23.
Developing apparatus 5 also comprises and the opposed developer roll 33 of photoreceptor except accommodating the initial developer of developer D conduct that comprises toner and carrier.And, the donor rollers 37 that in this developing apparatus 5, is provided with the agitating roller 35 that is used to stir the developer D in the developing apparatus 5 and is used for the developer after being stirred by this agitating roller 35 is offered developer roll 33.And, below agitating roller 35, dispose the sensor 38 of judging the blending ratio of toner in the developing apparatus 5 and carrier based on magnetic permeability.In addition, dispose facing to developer roll 33 and to regulate scraper plate (doctor blade) 39, this adjustings scraper plate 39 is used for and will be formed on developer roll from the thin layer of the developer D of donor rollers 37 supplies.
Contain supply toner Ts in the inside of toner supply portion 21.And toner supply portion 21 comprises toner supply roller 41, and this toner supply roller 41 is used for supplying with toner to toner mixing portion 23.The toner Ts that is housed in the toner supply portion 21 drops in the toner mixing portion 23 in right amount by the rotation of this toner supply roller 41.
In toner mixing portion 23, in supply toner Ts, the recycle toner Tr that carries by recirculator 29 also is fed in the toner mixing portion 23.Toner mixing portion 23 comprises mixing mill 51, and this mixing mill 51 is used to mix this toner Ts and recycle toner Tr.Be provided with sensor 53 in this toner mixing portion 23, this sensor 53 is used to detect the tone dosage in the toner mixing portion 23.According to the tone dosage testing result that is detected by sensor 53, toner supply roller 41 is driven and rotates.And, rotating mixing mill 51 according to the tone dosage testing result that detects by sensor 38, the toner in the mixing portion 23 is fed in the developing apparatus 5.
Recirculator 29 comprises spiral (auger) conveyer 62, will carry to toner mixing portion 23 by the developer that cleaning balde 15 is removed by the rotation of spiral conveyer 62.
At this, D is elaborated to developer.Developer D is as initial developer and pulverous toner and carrier constitute, and developer D is housed in the developing apparatus 5.Toner T contains: the toner particle, contain the colorant of resin, carbon black etc., charged controlling agent, wax (wax) etc.; Be added on two kinds of different silicas of particle diameter of this toner particle surface; And as the titanium dioxide of other external additives.
Use cyclodextrin compound (cyclodextrine) as charged controlling agent.A kind of silica is that mean grain size is the silica (first silica) of the big particle diameter of 20nm to 40nm, and another is that mean grain size is the silica (second silica) of the small particle diameter of 8nm to 14nm.To in the back these charged controlling agents and silica be carried out detailed narration.
As described later, the titanium dioxide that contains in the toner particle is 0.15 weight portion to 1.2 weight portions with respect to the weight portion of toner 100 preferably.
And supply equally also is made of resin, colorant, charged controlling agent, wax and silica with toner Ts and the toner T that constitutes developer D, and supply is arrived in the toner supply portion 21 as required.
The manufacture method of toner is as described below: after resin, colorant (as the carbon of pigment), charged controlling agent are cyclodextrin compound, titanium dioxide and wax melting mixing, cooling, pulverizing, classification, obtain 10 μ m degree (about) the toner particle after, form toners thereby add two kinds of silicas to this toner particle.As the not special restriction of carrier, in the present embodiment, use ferrite (ferrite).
Then, the action to the image processing system of such formation describes.
At first, when photoreceptor 1 begins to rotate, undertaken by charged charger 2 charged, by 3 pairs of these charged photoreceptors of exposure device 1 exposure laser beam B corresponding with image, thus the formation electrostatic latent image.The developer D that this electrostatic latent image utilization is housed in the developing apparatus 5 develops.The developer image that is formed on the photoreceptor is transferred on paper by transfer device 7, accepts to peel off from photoreceptor 1 based on the charged of stripping off device 9, is transferred then and is with 19 to carry.
The developer that remains in after transfer printing developer image on the photoreceptor 1 utilizes cleaning balde 15 to remove.Then, photoreceptor 1 is accepted based on the electricity that removes that removes electric light 16, thereby finishes the circulation that image forms, and accepts charged based on charged charger 2 once more.
Along with image forms, the developer D in developing apparatus 5 is consumed, and the toner that changes according to this consumption and the mixing ratio of carrier are detected by sensor 38.Based on the testing result of sensor 38, toner from 23 supplies of toner mixing portion in developing apparatus 5.
In this toner mixing portion 23, sensor 53 detects tone dosage, and based on this detection signal, from toner supply unit 21 supply toner Ts again.
On the other hand, the toner of removing by cleaning balde 15 is transferred and is provided in the toner mixing portion 23 by the rotation of the spiral conveyer 62 in the recirculator 29.Therefore, the toner of supplying with to developing apparatus 5 from toner mixing portion 23 is the mixture of toner Ts and toner Tr.
If the beginning image forms, then toner T is attached on the photoreceptor 1, the toner scraper plate sliding contact that is cleaned under the state that adheres to.Along with the carrying out that image forms, the deterioration of carrier is also being carried out.
At this, the silica as the external additive of toner particle is illustrated.
Conclusion be preferably by the mean grain size of 50% volume be 6 μ m to 10 μ m and resistivity be 13E10 (Ω cm) to the mean grain size of (50Dvol) of the toner particle of 20E10 (Ω cm) and 50% volume be the developer that the carrier of 30 μ m to 50 μ m constitutes.More preferably adding mean grain size in above-mentioned toner particle is second silica＜A of 8nm to 14nm〉and mean grain size be first silica＜B of 20nm to 40nm, be that from 1 to 50 mode is added with their the ratio B/A of addition (weight %).
In above-mentioned toner recycle duplicating machine, changing two kinds different＜A of particle diameter 〉,＜B silica particle diameter, its addition (wt%), its silica ratio (＜B 〉/＜A), the size-grade distribution of toner, the amount (wt%) of titanium dioxide, the kind of charge control agent, carried charge change under the situations such as (Δ μ C), carries out the experiment of photographic fog.
At this, the manufacture method of the toner shown in the embodiment 1 of Fig. 2 is described.
At first, prepare the material of toner particle as follows.
(1) styrene-propene acid resin glass transition point is 55.6 ℃, 150 ℃ melting index 5 (g/19 branch)------------------------86 parts,
(2) carbon black---------------------------------------------7.5 parts
(3) CCA (kind A) (above-mentioned)---------------------1.5 parts
(4) polypropylene wax---------------------------3 parts of 140 ℃ of fusing points
(5) Tissuemat E------------------------2 parts of 99 ℃ of fusing points
By Henschel mixer (Henschel mixer) these (1) to (5) are disperseed, mix.Then, they are passed through double-shaft spiral type extruder melting mixing.
Then, using jet pulverizer (jet mill) that these meal are minced, to carry out micro mist broken, undertaken by separation vessel micro-powder graded, thereby obtained the toner particle.
For 100 parts on the toner particle that obtains like this, mix following external additive by the Henschel mixer, thereby obtain toner.
External additive prescription (corresponding to the addition of 100 parts on toner particle)
(a) silica＜A〉(above-mentioned)---------------------0.5 part
(b) silica＜B〉(above-mentioned)---------------------0.5 part
(c) titanium dioxide------------------------------------0.5 part
For other from embodiment 2 to embodiment 6 and from comparative example 1 to comparative example the toner shown in 8, as shown in the hurdle of the left-half of Fig. 2, changed silica＜A 〉,＜B particle diameter, addition, their ratio, the amount of titanium dioxide, the size-grade distribution of toner etc., similarly make with the foregoing description 1.
This experimental result is shown in the hurdle of right half part of Fig. 2.The transformation apparatus that transfer roll has been installed in use has obtained image.For photographic fog, investigated behind the 100k and the photographic fog behind the 200k.
Measuring the reflectivity on the blank parts of paper, is to be expressed as zero under less than 1% situation in the difference with the reflectivity of untapped paper, be more than or equal to be expressed as under 1% the situation *.Can draw preferred following situation according to experimental result shown in Figure 2.
Silica＜A〉mean grain size be 8nm to 14nm, silica＜B〉mean grain size be 20nm to 40nm.Its percentage by weight＜B〉wt%/＜A〉wt% is 1 to 50.Silica＜A〉addition (wt%) be 0.05 to 0.5, silica＜B〉addition (wt%) be 0.5 to 2.5.And, the mean grain size (D50 of toner; Volume volume) be about 6 μ m to 10 μ m.
In Fig. 2, A adds cyclodextrin compound as the experimental result under the situation of charged controlling agent.
Silica＜A in this case〉particle diameter (D50vol) be 8nm to 14nm, silica＜B〉particle diameter (D50vol) be 20nm to 40nm.The weight mixing ratio of this silica (＜B〉wt%/＜A〉wt%) be 1 to 50.The amount of the titanium dioxide that adds in toner is 0.15 weight portion to 1.2 weight portions with respect to toner 100 weight portions, has suppressed photographic fog.The amount of the titanium dioxide the recycle till during from the initial stage to 200K is below 1.5 weight portions with respect to toner 100 weight portions.
In the measurement result based on toner particle assay device (Ku Erte particle collector (CoulterMultisizer)), toner particle diameter (D50vol) is 6 μ m to 10 μ m, with 4 μ m (pop%; Number group) Yi Xia ormal weight, toner micro mist amount is below 5.5%.
In the hurdle of the CCA of Fig. 2 kind, A is set at guest compound under the situation of magnesium compound, uses any situation as charged controlling agent in alpha-cyclodextrin compound, beta-schardinger dextrin-compound, the gamma-cyclodextrin compound.B is set at guest compound under the situation of silicon compound, uses any situation as charged controlling agent in alpha-cyclodextrin compound, beta-schardinger dextrin-compound, the gamma-cyclodextrin compound.C is to use the situation of zirconium complex as charged controlling agent.By using cyclodextrin (polysaccharide), reduce the weak live part that carried charge distributes and reduce the effect that the carried charge in the lifetime changes thereby have as charged controlling agent.
At carried charge distribute weak/contrary charged, the Rome that shows carried charge determinator (E-spart) resolves the disengaging amount, and, will be that all situations below 5% are zero constantly at 200K, will surpass 5% situation conduct *.
The lifetime carried charge changes (Δ μ C) expression and attracts to arrange (blow off) measured value, after the adjustment of toner function behind (behind the AJ)-200K with the situation below the Δ 5 μ C/g as zero.But, be the developer that under same environment, has carried out test behind the AJ and behind the 200K.
In long-term the use, compare with the CCA of existing metal complex type, it is effective using cyclodextrin (polysaccharide) the Compound C CA of the effect of the change with inhibition zone electric weight.
It is the reasons are as follows.Cyclodextrin is to be made of the member cyclic oligosaccharides that ring-type connects, the absorption of its cavity (cavitation) part is called as the material of object and becomes crystalline inclusion compound (cyclodextrin compound), thereby textural highly stable, the thermotolerance and the heat-resisting viscosity brilliance that cause by friction.
Therefore, this cyclodextrin compound is being used for as charged controlling agent under the situation of toner, seldom because friction or heat and on the hot sticky material that is attached to other, that suppresses that consumption (spent) owing to carrier causes is charged bad, and it can be used for a long time.And cyclodextrin does not contain heavy metal, can be used for food etc. yet, is effective material as the protection environment yet.
As the object of taking in the cavity part, Li
+, Na
+, K
+, Mg
+, Ca
2+, Sr
2+, Ba
2+, Ti
2+, Ti
4+, Zr
2+, Zr
4+, Cr
3+, Cr
6+, Mn
2+, Mo
4+, Fe
2+, Fe
3+, Ni
2+, Cu
+, Cu
2+, Zn
2+, Al
3+, Si
2+, Si
4+Deng metal cation is effective.
The material of preferred light metal class also is effectively as the protection environment, is more preferably Mg
2+, Al
3+
These inorganic cations also can exist with the state of oxidation.In addition, the part of neutrality or anionic property can also coordination on inorganic cation be arranged, for example H
2O, Co, CN
-, NH
3, OH
-, O
2-, Cl
-, F
-, Br
-, I
-
Particle diameter as the charged controlling agent of cyclodextrin compound, as disclosed among the Japanese kokai publication hei 10-186729, exist in the situation that is applicable to just charged toner below the 1 μ m, by carrying out the situation that extremely narrow and small size-grade distribution is applicable to the negative charging toner from the scope of 1 μ m to 10 μ m.This is because be the boundary line reversing with 1 μ m.
Cyclodextrin compound and derivant thereof are owing to having the sulfonate group of electron attractivity, so himself be negative charging.Therefore, near the cyclodextrine derivatives in toner, just charged because electronics is attracted by cyclodextrine derivatives.Under the less situation of the particle diameter of the cyclodextrine derivatives in toner, the surface of toner with and near just charged part becomes many because electronics is attracted by cyclodextrine derivatives.And the cyclodextrine derivatives (negative charging) that is exposed to the toner surface tails off, and as a whole, this toner is just charged.
Yet, under the big situation of the particle diameter of cyclodextrine derivatives, the toner surface with and near, electronics is attracted by cyclodextrine derivatives and just charged part tails off.Therefore, the cyclodextrine derivatives (negative charging) that is exposed to the toner surface becomes many, therefore, as a whole, this toner negative charging.
Under the situation of such toner, the particle diameter of the charge control agent that disperses by toner is quite inhomogeneous, and consequently the distribution as the carried charge of toner becomes wide, in addition, and the possibility that this ratio that has also improved the reversed polarity toner increases.
Therefore, as the Positively chargeable toner, preferred charge control agent more carefully disperses in the mode below the 1 μ m, and in addition, as the negative charging toner, charge control agent preferably becomes at the state of holding extremely narrow and small size-grade distribution in 1 μ m to 10 mu m range.
In such cyclodextrin inclusion compound, silicon compound), as cyclodextrin inclusion compound, there is the trade name CopyChargeN4P01 that Clariant (Clariant) company produces (guest compound: with the trade name CopyChargeN5P01 (guest compound: magnesium compound) etc. of corporate system by market sale.Its use amount is usually with respect to 100 weight portions of resin in the toner, 0.01 weight portion to 10 weight portion preferably.
And, be suppressed at below 5.5% by micro mist amount (pop%) below the 4 μ m of the particle diameter in the toner, thereby can suppress to have in the operating period toner micro mist in the developer that increases tendency, the mobile variation of the charged bad or developer that suppresses the consumption of carrier and cause, thus long-term the use further promoted.And, based on this,, can access also that photographic fog is few, the image of high meticulous image quality even under the environmental baseline of broad.
Then, for the photographic fog under the environment of low temperature and low humidity, how to reduce the few part of carried charge and become to attach most importance to.Relative therewith, preferably use the big slightly silica of particle diameter about 20nm to 40nm.
This be because: in order to pursue high image quality, use the little carrier of particle diameter in recent years, this causes mobile reduction, can improve liquidity by using the big silica of particle diameter, be effective for reducing the low part of carried charge.
The improvement that the silica of the particle diameter about 20nm to 40nm is used for this flowability is effective.In addition, for corresponding, need guarantee the flowability of recycle toner with toner recirculating system as described above.For this reason, only use the silica of the particle diameter about 20nm to 40nm, be difficult to make the flowability of recycle toner to become suitable state etc.Therefore, by share the silica of the smaller particle diameter about other 8nm to 14nm, thereby can avoid such unfavorable condition.
And, in recirculating system, owing to pile up and surpass the unfavorable condition that can cause image when a certain amount of etc. when titanium dioxide, so,, be set at 0.15 weight portion to 1.2 weight portion preferably with respect to toner 100 weight portions as addition to the toner interpolation.By titanium dioxide is set in this degree to the addition that toner adds, thereby, can reduce weak charged and contrary charged toner even the amount of the titanium dioxide in the recycle also is about 1.5 weight portions in state of saturation.
By these methods, can realize satisfying the long-term toner that uses.
In the above-described embodiment, though the situation that toner of the present invention is applicable to the electrophotography duplicating machine of toner egr mode is illustrated.But the present invention is not limited in the system of toner egr mode, also applicable to the common electrophotography duplicating machine that toner is not utilized again.In addition, what toner of the present invention used is the two constituent class developers that also comprise the carrier that is blended in wherein except toner, and it can be used to not only toner be utilized again, also the image processing system that carrier is utilized again.
And, in the above-described embodiment, though the situation of using the two constituent class developers that also comprise carrier except comprising the powder toner is illustrated.But the present invention is not only applicable to the system of the toner of two constituent classes, also is applicable to the system of the single constituent class developer that has only toner.
In addition, toner of the present invention is not only applicable to duplicating machine, also is applicable to multi-function peripheral (MFP), generally is applicable to all devices (copy device) with copy function of using the electrofax mode.
Significantly, according to above-mentioned technology, the present invention can carry out various modifications and variations.Therefore, should be appreciated that within the appended protection domain of the present invention, the present invention can carry out the application of other reality rather than specifically be defined in instructions of the present invention.
Claims (9)
1. a toner applied to electrophotography is characterized in that, comprising:
Is that cyclodextrin compound, the mean grain size of 0.01 weight portion to 10 weight portion is first silica of 20nm to 40nm and second silica that mean grain size is 8nm to 14nm with respect to toner with resin 100 weight portions.
2. toner applied to electrophotography according to claim 1 is characterized in that,
The micro mist amount of (pop%) below the 4 μ m of the particle diameter in the described toner is set at below 5.5%.
3. toner applied to electrophotography, it is used for toner recirculating system that toner is utilized again, and described toner applied to electrophotography is characterised in that, comprising:
Is that cyclodextrin compound, the mean grain size of 0.01 weight portion to 10 weight portion is that first silica, the mean grain size of 20nm to 40nm is second silicas of 8nm to 14nm and to be the titanium dioxide that 0.15 weight portion to 1.2 weight portion adds with respect to toner 100 weight portions with respect to toner with resin 100 weight portions.
4. toner applied to electrophotography according to claim 3 is characterized in that,
The micro mist amount of (pop%) below the 4 μ m of the particle diameter in the described toner is set at below 5.5%.
5. image processing system, it comprises: sub-image formation portion is used for forming electrostatic latent image by exposure optionally on photoreceptor; And development section, being used for will developing and obtain image by the electrostatic latent image that described sub-image formation portion forms by developer, described image processing system is characterised in that,
Described image processing system uses toner applied to electrophotography, wherein, described toner applied to electrophotography comprises: is that cyclodextrin compound, the mean grain size of 0.01 weight portion to 10 weight portion is first silica of 20nm to 40nm with respect to toner with resin 100 weight portions; And mean grain size is second silica of 8nm to 14nm.
6. image processing system according to claim 5 is characterized in that,
Described developer also contains the carrier that is blended in the described toner except that containing described toner.
7. image processing system, it comprises: sub-image formation portion is used for forming electrostatic latent image by exposure optionally on photoreceptor; And development section, being used for will developing by the electrostatic latent image that described sub-image formation portion forms and obtaining image by developer, described image processing system utilizes described developer again, and described image processing system is characterised in that,
Described image processing system uses toner applied to electrophotography, wherein, described toner applied to electrophotography comprises: is that cyclodextrin compound, the mean grain size of 0.01 weight portion to 10 weight portion is that first silica, the mean grain size of 20nm to 40nm is second silicas of 8nm to 14nm and to be the titanium dioxide that 0.15 weight portion to 1.2 weight portion adds with respect to toner 100 weight portions with respect to toner with resin 100 weight portions.
8. image processing system according to claim 7 is characterized in that,
Described developer also contains the carrier that is blended in the described toner except that containing described toner.
9. image processing system according to claim 8 is characterized in that,
The micro mist amount of (pop%) below the 4 μ m of the particle diameter in the described toner is set at below 5.5%.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US4088608P | 2008-03-31 | 2008-03-31 | |
| US61/040,886 | 2008-03-31 | ||
| US61/040,892 | 2008-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101551605A true CN101551605A (en) | 2009-10-07 |
Family
ID=41155902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101303138A Pending CN101551605A (en) | 2008-03-31 | 2009-03-26 | A toner applied to electrophotography and an image forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101551605A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105492974A (en) * | 2014-06-26 | 2016-04-13 | 塞尔瑞星技术有限公司 | Electrostatic printing of cyclodextrin compositions |
| US10182567B2 (en) | 2011-03-27 | 2019-01-22 | Cellresin Technologies, Llc | Cyclodextrin compositions, articles, and methods |
-
2009
- 2009-03-26 CN CNA2009101303138A patent/CN101551605A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10182567B2 (en) | 2011-03-27 | 2019-01-22 | Cellresin Technologies, Llc | Cyclodextrin compositions, articles, and methods |
| USRE49501E1 (en) | 2011-03-27 | 2023-04-25 | Verdant Technologies, Llc | Cyclodextrin compositions, articles, and methods |
| CN105492974A (en) * | 2014-06-26 | 2016-04-13 | 塞尔瑞星技术有限公司 | Electrostatic printing of cyclodextrin compositions |
| CN107065466A (en) * | 2014-06-26 | 2017-08-18 | 塞尔瑞星技术有限公司 | The electrostatic printing of cyclodextrin composite |
| TWI658103B (en) * | 2014-06-26 | 2019-05-01 | 美商瑟爾睿欣科技公司 | Electrostatic printing of cyclodextrin compositions |
| CN107065466B (en) * | 2014-06-26 | 2019-08-20 | 塞尔瑞星技术有限公司 | The electrostatic printing of cyclodextrin composite |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5497014B2 (en) | Toner composition for preventing image blocking | |
| EP1383011B1 (en) | Toner comprising zirconium based organometallic charge control agent and image forming method | |
| JP2011017867A (en) | Developing device and image forming apparatus | |
| JP5678713B2 (en) | Two-component developer carrier, two-component developer, image forming method, and image forming apparatus | |
| JP2015064488A (en) | Developing apparatus and image forming apparatus | |
| JP4958261B2 (en) | Non-magnetic one-component developing toner | |
| JP2007178961A (en) | Nonmagnetic toner, two-component developer, and image forming apparatus | |
| JP2013008015A (en) | Image forming apparatus and image forming method | |
| US8679721B2 (en) | Electrostatic charge image developing toner, electrostatic charge image developer, and image forming apparatus | |
| CN101551605A (en) | A toner applied to electrophotography and an image forming device | |
| JP4054644B2 (en) | Non-magnetic one-component toner for electrophotography and developing method | |
| JP4951692B2 (en) | Magenta toner for developing electrostatic image, developer, image forming method and image forming apparatus | |
| JP2007248867A (en) | Electrophotographic toner | |
| JP2006301008A (en) | Electrophotographic toner, method for manufacturing the same, development method using the toner, and image forming apparatus | |
| JP2007108591A (en) | Toner | |
| JP4227276B2 (en) | Resin-coated carrier, two-component developer, and image forming method | |
| JP2000305309A (en) | Electrophotographic toner | |
| EP3596549B1 (en) | Toner, production method of toner, image forming method, image forming apparatus, and process cartridge | |
| JPH1020560A (en) | Electrophotographic toner, its production and image forming method using the toner | |
| JP2005099726A (en) | Toner for forming image, toner container, two-component developer, image forming method and process cartridge | |
| JPS61147260A (en) | Electrostatic charge image developing toner | |
| JP4098971B2 (en) | Image forming method and toner | |
| JP2013015734A (en) | Powder conveying apparatus, powder manufacturing method, image forming apparatus, and image forming method | |
| JP4860970B2 (en) | Toner for electrophotography, developing method, developing device, image forming method and image forming device | |
| JPH11305552A (en) | One-component developing device and developer for use therein |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091007 |