CN107247394A - It is a kind of to be used to heat carbon dust of fixation process and preparation method thereof - Google Patents
It is a kind of to be used to heat carbon dust of fixation process and preparation method thereof Download PDFInfo
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- CN107247394A CN107247394A CN201710667120.0A CN201710667120A CN107247394A CN 107247394 A CN107247394 A CN 107247394A CN 201710667120 A CN201710667120 A CN 201710667120A CN 107247394 A CN107247394 A CN 107247394A
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/087—Binders for toner particles
- G03G9/08702—Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- G03G9/08706—Polymers of alkenyl-aromatic compounds
- G03G9/08708—Copolymers of styrene
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/0802—Preparation methods
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/087—Binders for toner particles
- G03G9/08702—Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- G03G9/08722—Polyvinylalcohols; Polyallylalcohols; Polyvinylethers; Polyvinylaldehydes; Polyvinylketones; Polyvinylketals
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/087—Binders for toner particles
- G03G9/08702—Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- G03G9/08724—Polyvinylesters
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Abstract
The invention discloses a kind of carbon dust for being used to heat fixation process and preparation method thereof, belong to electrostatic development technical field.Aim to provide it is a kind of being capable of induced rapidly and low-temperature fixability, high temperature ghost and such as the excellent fixation performance of separation property and with high glaze, high chroma, carbon dust for heating fixation process of unrelated with environment offer imaging excellent in stability and preparation method thereof in the excellent light pressure fusing system of energy saving and in rapid development system.The technical scheme that the present invention is provided is such：A kind of carbon dust for being used to heat fixation process, including following weight parts component：The parts by weight of binder resin 100, the parts by weight of colouring agent 2~20, the parts by weight of wax 1~10 and the parts by weight of charge adjusting agent 1~10；The carbon dust need to meet Tfb simultaneously<125℃；T1/2–Tfb>40；Wherein, Tfb refers to flow initial temperature, and T1/2 refers to the minimum point of piston stroke and 1/2 point of temperature of peak.
Description
Technical field
The invention belongs to electrostatic development technical field, especially a kind of carbon dust and its preparation side for being used to heat fixation process
Method.
Background technology
Recently there are office use, private use, image market etc. using the facility of xerography formation image, in any market
Widespread demand quickly starts and the good imaging system of energy saving.Therefore in fusing system, the angle of power consumption reduction is by passing
The hard roller system of big thermal capacity of system, toward the light pressure fusing system main trend that the small film of thermal capacity is fixing or transmission belt is fixing.This
The light pressure fusing system of class is small because of thermal capacity, can shorten system temperature lifting to fixing design temperature (as called adjustment temperature in the following text) institute
The time needed, simultaneously quick startability was superior.It is also different from traditional hard roller, without using thick metal fittings or multiple heaters,
Therefore stabilization machine miniaturization and light-weighted advantage can be accomplished.But fusing system is on the other hand gently pressed due to low heat capacity,
When being therefore carried out continuously duplicating compared to traditional hard roller system, the temperature drop for being fixed material surface is big, and gently pressure fusing system is
The carbon dust pressure for bringing record body is small, causes easily generation fixing bad.It is conversely in gently pressure fusing system, such as fixed in film
In order to prevent the contact field temperature drop of fixing material and the material that pressurizes in shadow, carbon dust can be fully fixed on record body by having motion to cross
The fixing material of phase.But such light pressure system compares traditional hard roller system, is still easy to occur under fixing material surface temperature
Drop, and in the fixing temperature distribution and fixing pressure phenomenon pockety for fusing nip easily occur.Thus it is easy to occur
The carbon dust in fusing nip is caused to be bonded at fixing section dirt because the fixing bad or temperature that temperature drop occurs exceedes adjustment temperature
Fixing member is contaminated, and the fixing member polluted is again with recording pollution record body when body is contacted, moreover it is possible to easily occur so-called height
Warm ghost (Hot offset) phenomenon.
Although as above-mentioned develop can prevent temperature drop and fixing temperature distribution that can be in fusing nip and fixing pressure
The various solutions being evenly distributed, but require further improved solution.
Therefore, in order to which carbon dust adapts to not only traditional hard roller system, moreover it is possible to adapt to the superior light pressure fusing system of energy saving,
It is required that further improving the carbon dust of low-temperature fixability and fixing temperature amplitude broad.
At present the imaging device of xerography is utilized, it is desirable to further high speed and fine definition.In order to corresponding such
Rapid development system, improve developability and as above-mentioned raising low-temperature fixability is referred to as (Trade-off) trade-off relationship.Than
Such as, the preferential carbon dust of low-temperature fixability reduces inclining for binder resin softening point to reduce the distribution of binder resin molecular weight or having
To the disadvantage of carbon dust thermalization and the pollution for the accessory that develops etc. easily occurs in rapid development for its result.Opposite developability is excellent
First carbon dust is the molecular weight distribution of amplification binder resin or has the tendency of to increase softening point, the low-temperature fixability of its result carbon dust
Become and deteriorate and be extremely difficult to the superior imaging system of energy saving.
In view of necessity of the above for respective market, the carbon to adapting to rapid development system and light pressure fusing system
Powder, it is desirable to and deposit the fixation performance and developability of high level.For the carbon dust for providing fixation performance and developability and depositing, carry all the time
For various schemes, such as, by and with low softening point resin and high softening point resin, the carbon made using the benefit of each resin
Powder.Such carbon dust in order to and deposit fixation performance and developability purpose, it is soft by the low-temperature fixability and height that improve low softening point resin
Change the high temperature ghost of point resin, it is ensured that fixing tolerance simultaneously forms equilibrium.In such motion, several motions are by and with two kinds
Resin above, low softening point resin is recorded the inside of high softening point resin structure, so-called island (sea-island) knot
The carbon dust of structure.Such a carbon dust controls gushing out for respective low softening point resin, it is ensured that the superiority in fixing region.But by respective carbon
Powder will adapt to light pressure fusing system, it is necessary to more further improve low-temperature fixability as above-mentioned.
Moreover and with low softening point resin another motion related to the carbon dust of high softening point resin, by and with compatibility
Good two or more resins, fully meet carbon dust low-temperature fixability and keeping quality.But such motion is still above-mentioned light
Press in fusing system, it is ensured that be fixed region and resulting visualization deficiency is improved in high speed visualization system.For and deposit high-caliber
Fixation performance and developability, there are still some problems at present.
The content of the invention
The present invention is intended to provide it is a kind of can it is induced rapidly and in the excellent light pressure fusing system of energy saving and
Low-temperature fixability, high temperature ghost and such as the excellent fixation performance of separation property and with high glaze, height in rapid development system
Chroma, unrelated with environment offer imaging excellent in stability be used for heat carbon dust of fixation process and preparation method thereof.
In order to realize above-mentioned technique effect, the previous technical scheme that the present invention is provided is such：One kind, which is used to heat, determines
The carbon dust of shadow technique, including following weight parts component：The parts by weight of binder resin 100, the parts by weight of colouring agent 2~20, the weight of wax 1~10
Measure part and the parts by weight of charge adjusting agent 1~10；
The carbon dust need to meet Tfb simultaneously<125℃；T1/2–Tfb>40；
Wherein, Tfb refers to flow initial temperature, and T1/2 refers to the minimum point of piston stroke and 1/2 point of temperature of peak
Degree.
Described colouring agent preferably 3~10 parts by weight, the parts by weight of charge adjusting agent 1~5,
Wherein, described binder resin glass transition temperature is 50~100 DEG C.
Wherein, the spheroidization degree of the carbon dust is 0.945~0.995；Specifically, refer to by image procossing resolution ratio
The circular diagram of the flow-type particle detections instrument measurement of the pixels of 512X 512, in 0.200~1.000 circular diagram Range-partition
The 800 average circular diagrams 0.945~0.990 annotated；1 described pixel is equal to 0.37 μm of 0.37 μ m.
The measuring method of spheroidization degree of the present invention is：Use the FPIA-2000 instrument of Sysmex (SYSMEX) company
Device, spheroidization degree=(with grain projected area circumference of the same area)/(girth of particle projection picture), in this particle projection
Area refers to the area of the carbon powder particle shape of Quadratic Finite Element, and the girth of particle projection picture is defined as by connecting carbon powder particle shape
The length for the contour line that girth is obtained.Granular girth when measurement is handled using 512*512 image in different resolution.
After FPIA2000 instruments accounting spheroidization degree, the accounting method of average spherical degree is by the spherical of particle
Change degree 0.2~1.0 is to every 0.001 splits after 800, is multiplied, calculated flat with the middle calculation of cut-point by measuring granule number
Equal spheroidization degree.
Wherein, described binder resin is polyester phenylethylene resin series, polyester acrylic system resin, styrene acrylic system
It is copolymer resin, polyolefin-based resins, polyester based resin, polyamide series resin, polycarbonate-based resin, polyethers system resin, poly-
One or more in vinyl acetate system resin, polysulfones system resin and polyurethane resin.
Wherein, described colouring agent is to have metal powder type pigment, metal-oxide, carbon type pigment, sulfide type
Pigment, chromic salts type pigment, cyaniding swage pigment, azo type pigment, acid dye pigment, basic dye type pigment, phthalocyanine, quinoline
One or more in acridone type pigment and dioxanes type pigment.
Wherein, described wax is in polyalkylene wax, ester type waxes, ceresine, Brazil wax, paraffin, Montaen waxes and rice wax
One or more.
Wherein, described charge adjusting agent is divided into elecrtonegativity charge adjusting agent and electropositive charge adjusting agent；
The elecrtonegativity charge adjusting agent be the azo dyes containing chromium, the organic metal dyestuff of monomer azo metal dye or
One or more in chelate, salicylate compound containing metal, aromatic hydroxycarboxylic acids and aromatic dicarboxylic acid；
The electropositive charge adjusting agent is Ni Ge and its fatty acid metal salts, tributyl benzyl ammonium chloride, 1- hydroxyls, 4-
One or more in the salt containing 4 grades of ammoniums such as naphthalene sulfonate and tetrabutylammonium and tetrafluoro boric acid.
The latter technique scheme that the present invention is provided is such：A kind of carbon dust as described above for being used to heat fixation process
Preparation method, comprise the steps：
Step 1：Binder resin, colouring agent, wax and charge adjusting agent are mixed, stirring；
Step 2：Said mixture is extruded using biaxial extruder, particle diameter is crushed to for 5~25 μm, obtains carbon dust.
Wherein, the mixing speed described in step 1 is 500~1000rpm, and mixing time is 30s~30min.
Wherein, the extrusion temperature described in step 2 is 90~170 DEG C, preferably 95~160 DEG C, most preferably 100 DEG C and 150 DEG C.
Three sections of described extruder point, section 1 is 130~170 DEG C；Section 2 is 110~150 DEG C；Section 3 is 90
~130 DEG C；Preferably, section 1 is 140~160 DEG C；Section 2 is 120~140 DEG C；Section 3 is 100~120 DEG C.
Described step 2 is crushed using impingement plate pulverizer and airflow classification machine etc..In above-mentioned shredding stage
In, the volume average particle size of extrudate is reached into 5~25 μm, most preferably preferably 5~20 μm, 5~15 μm.
The step 2 needs to carry out it with inorganic fine particles coating and the hot gas by carbon dust at 200~400 DEG C before crushing
Sprayed in stream with 50~200g/hr；Preferably, sprayed in 200~350 DEG C of thermal current with 60~150g/hr；
Most preferably, sprayed in 200~320 DEG C of thermal current with 70~130g/hr.
Above-mentioned inorganic fine particles be silica, aluminum oxide, titanium oxide, magnesium titanate, strontium titanates, zinc oxide, antimony oxide and
One or more in calcium carbonate；The usage ratio of itself and carbon dust is 100：1~5；Inorganic fine particles can pass through tetraalkoxy silicon
The silane such as alkane based compound carries out silicic acid anhydride, so that its particle diameter is 0.01~1mm.
It is described when carrying out coating to the carbon dust do not crushed with inorganic fine particles, with 1000~5000rpm mixing speed
Mixed；Preferably, 1500~4000rpm；Most preferably, 2000~3000rpm.
Mathematical expression 1 will be met by gushing out curve such as Fig. 1 heat analysis in the present invention：Tfb<125℃；Mathematical expression 2：T1/2–Tfb
>40 related mathematical expression is extremely important；Wherein, in Fig. 1, Tfb refers to flow initial temperature, and T1/2 refers to piston stroke most
1/2 point of temperature of low spot and peak, Tend refers to stop measurement temperature.
The present invention is compared with conventional method, with advantages below：
1st, it is of the present invention to gush out curve while when meeting mathematical expression 1 and mathematical expression 2, when being fixed in low temperature field,
Binder resin in carbon dust is gushed out rapidly, when being fixed in high-temperature field, and the binder resin in carbon dust is gushed out suppressed, realizes good
Good low-temperature fixability and ensure the fixation performance of wide-range.
2nd, the carbon dust of the invention be in the endothermic curve detected by differential scanning calorimetry (DSC), maximum heat absorption summit 50~
100℃.The maximum heat absorption summit of carbon dust can obtain above-mentioned good fixation performance and can promote to improve and develop in above range
Property.Further improve fixing separation property between accessory and carbon dust simultaneously first, and prevent the pollution of fixing accessory, can be permanent
Obtain good image.
3rd, the release effect of carbon dust in fusing nip is improved, with temperature in the maximum heat absorption summit of carbon dust at 50 to 110 DEG C
Distribution and pressure distribution it is unrelated can improve separation property.When the maximum heat absorption summit of carbon dust is less than 50 DEG C, it can obtain well
Separation property, but the keeping quality of carbon dust becomes deterioration or in high speed visualization, carbon dust thermalization or appearance imaging accessory pollution.Carbon dust
When maximum heat absorption summit is more than 110 DEG C, it is impossible to obtain good separation property and occurrence record body is rolled up in fixing accessory or can occurred
The problems such as fixing accessory pollutes.
4th, when the average circular diagram of carbon dust is in the range of 0.945~0.990, the good fixation performance of the above and rush can be obtained
Enter resulting visualization raising.When the average circular diagram of carbon dust is less than 0.945, easily there is being charged by friction for carbon dust uneven and aobvious
As property and the insufficient phenomenon of transfer efficiency.When the average circular diagram of carbon dust is more than 0.990, carbon dust be charged by friction change it is uniform by
This can obtain good resulting visualization and good transfer efficiency, but mobility become it is too high occur sometimes image poor prognostic cause it
One carbon dust flies upward phenomenon.
5th, the carbon powder particle for possessing and uniform physical property being walked into a distribution can be produced by technical solutions according to the invention.
6th, the consumption of each material of the present invention can prevent that physical property glides caused by being excessively added.
7th, each component in the present invention is played a part of as follows：
Described binder resin is to make the cement of carbon dust firm effect on printed medium；
Described colouring agent is, in order to which carbon dust embodies the composition that color is used, to use known black, yellow, magenta
Color, cyan colorant, containing carbon black, iron oxide, titanium dioxide black colorant；C.I. pigment yellow 12,13,14,17,
62,74,83,93,94,95,109,110,111,128,129,147 and containing 168 yellow colorants；C.I. pigment red 2,
3,5,6,7,23,48:2,48:3,48:4,57:1,81:1,144,146,166,169,177,184,185,202,206,220,
221 and containing 254 magenta coloring agent；C.I. pigment blueness 1,7,15,15:1,15:2,15:3,15:4,60,62 and containing 66
Cyan colorant etc.；After for coloring carbon dust, visual pattern can be formed preferably by imaging, the resistance of carbon dust when being excessively added
Resistance is low can not to obtain the friction belt electricity of abundance, cause contamination phenomenon occur, can be prevented out in scope of the present invention
Existing such phenomenon.
Described wax is to play the mould release for improving the effect of carbon powder image fixation performance；
Described charge adjusting agent is powered can be stably rapidly performed by carbon dust again by electrostatic force, and keeps carbon dust
The composition of stabilization on developer roll；Use scope of the present invention can prevent from assigning the electric charge regulation of minimum
Property, moreover it is possible to when being excessively added, forming uneven carbon dust layer in developing roller surface causes the powered distribution of carbon dust wide and is formed not
Uniform image.
When the 8th, detecting that the spheroidization of carbon dust is spent with FPIA-3000 etc detecting instrument, up to more than 0.95, it is possible thereby to
Find out that spheroidization degree is very excellent.
9th, can be with simplified method manufacture spheroidization degree, condensation by carbon powder particle by using injection method in thermal current
The carbon dust of the physical properties excellents such as degree, mobility and divergence.
10th, in the carbon dust obtained by thermal current injection phase, during addition inorganic fine particles mixing, by carbon powder particle
Surface attachment inorganic fine particles, it can be seen that whether the carried charge between carbon powder particle is uniform；It is excellent by adding inorganic fine particles
Change particle between carried charge the uniformity and in order to prevent from being excessively added cause carbon dust physical property glide.
Brief description of the drawings
Fig. 1 gushes out curve map for the heat analysis of the present invention.
Embodiment
The claim of the present invention is described in further detail with reference to embodiment, but not constituted to this
Any limitation of invention, any limited number of time modification made in the claims of the present invention, still the present invention's
In claims.
Embodiment 1
(preparation of carbon dust)
To polyester resin (mean molecule quantity：4000, ProductName:ER508, manufacturer:Mitsubishi Rayon Co., Ltd) 100 weights
Amount, colouring agent (ProductName:C44, manufacturer:Mitsubishi Chemical) 4.4 weight, wax (ProductName:660P, manufacturer:Sanyo) 3.3 weights
Amount, charge adjusting agent (ProductName:MEC-105, manufacturer:KM＆E) 2.2 weight are put into after high speed mixer, with 700rpm
Mixing speed one minute co-blended three times every time.
Said mixture 100kg/hr puts into biaxial extruder and by Zone1:Zone2:Zone3=150 DEG C:130
℃:After 110 DEG C of heating extrusions, carried out in 15 DEG C cold rolling.
After above-mentioned cold rolling thing is crushed using impingement plate pulverizer, volume average particle size is manufactured using airflow classification machine
7 μm of main body carbon dust.
(the thermal current injection of carbon dust)
3 weight inorganic fine particles (ProductNames are put into the above-mentioned weight of crushing carbon dust 100:R202, manufacturer:Win wound) it
Afterwards, by high speed rotation batch mixer with 1200rpm speed every time one minute co-blended twice after, utilize hot air type drying plant
(manufacturer:NPK) in 300 DEG C of thermal current, above-mentioned carbon dust is subjected to spheroidization with the injection of 100g/h speed and dried
Dry carbon dust.
(mixing of inorganic fine particles)
To the 100 weight carbon dusts (carbon dust dried after spheroidization) and silica obtained above by thermal current
After 1 weight and the mixing of 0.2 weight titanium oxide, it is total within 30 seconds each time with 2400rpm mixing speed in homogenizer
Mixing six times, obtains the carbon dust of surface attachment inorganic fine particles.
Embodiment 2
Polystyrene resin (the mean molecule quantity of above-described embodiment 1:4000, ProductName:FB-1753, manufacturer:Mitsubishi
Beautiful sun) in 100 weight except the charge adjusting agent (ProductName of addition:T95, manufacturer:Soil conservation paddy) outside, with the phase of embodiment 1
Same method manufacture carbon dust.
Comparative example 1
Charge adjusting agent (ProductName is used in embodiment 1:T77, manufacturer:Soil conservation paddy) manufacture carbon dust.
Comparative example 2
Charge adjusting agent (ProductName T77, manufacturer are used in example 2:Soil conservation paddy) manufacture carbon dust.
To the testing result such as table 1 of above-described embodiment and comparative example：
Table 1
| Tfb | T1/2 | T1/2-Tfb | Fixation performance | Interior ghost | |
| Embodiment 1 | 118℃ | 175℃ | 57℃ | 5 | 5 |
| Embodiment 2 | 115℃ | 173℃ | 58℃ | 5 | 4 |
| Comparative example 1 | 115℃ | 141℃ | 26℃ | 5 | 3 |
| Comparative example 2 | 113℃ | 148℃ | 35℃ | 5 | 3 |
The detection method of fixation performance
The carbon dust obtained by the embodiment and comparative example of the invention, is transferred using single transfer apparatus on paper, and
With Φ 40mm heat roller fixing machine after 150 DEG C fixing, concentration reaches that more than 1.4 part passes through Crockmeter
(Crockmeter) the image color detection fixation performance before and after five scrapings is compared.The bigger explanation fixation performance of data of fixation performance
It is superior.
Fixation performance " 5 "：More than 0.95；
Fixation performance " 4 "：More than 0.85；
Fixation performance " 3 "：More than 0.75；
Fixation performance " 2 "：More than 0.65；
Fixation performance " 1 "：0.65.
The detection method of high temperature ghost
The carbon dust obtained by the embodiment and comparative example of the invention, it is transferred using single transfer apparatus on paper
Afterwards, image color has abnormal part, after using Φ 40mm heat roller fixing machine fixing when improving temperature, detects non-beat
The portion temperature that print does not pollute, it detects that the bigger explanation high temperature ghost of data is superior.
High temperature ghost " 5 ":More than 190 DEG C,
High temperature ghost " 4 ":190 DEG C~180 DEG C,
High temperature ghost " 3 ":180 DEG C~170 DEG C,
High temperature ghost " 2 ":Less than 170 DEG C.
Above-described is only presently preferred embodiments of the present invention, all timess done in the range of the spirit and principles in the present invention
What modifications, equivalent substitutions and improvements etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of carbon dust for being used to heat fixation process, it is characterised in that including following weight parts component：The weight of binder resin 100
Measure part, the parts by weight of colouring agent 2~20, the parts by weight of wax 1~10 and the parts by weight of charge adjusting agent 1~10；
The carbon dust need to meet Tfb simultaneously<125℃；T1/2–Tfb>40；
Wherein, Tfb refers to flow initial temperature, and T1/2 refers to the minimum point of piston stroke and 1/2 point of temperature of peak.
2. a kind of carbon dust for being used to heat fixation process according to claim 1, it is characterised in that the binder resin
Glass transition temperature is 50~100 DEG C.
A kind of be used to heat the carbon dust of fixation process 3. according to claim 1, it is characterised in that the carbon dust it is spherical
Change degree is 0.945~0.995.
4. a kind of carbon dust for being used to heat fixation process according to claim 1, it is characterised in that described binder resin
For polyester phenylethylene resin series, polyester acrylic system resin, styrene acrylic resin, polyolefin-based resins, poly-
Ester system resin, polyamide series resin, polycarbonate-based resin, polyethers system resin, polyvinyl acetate system resin, polysulfones system resin
With the one or more in polyurethane resin.
5. a kind of it is used to heat the carbon dust of fixation process according to claim 1, it is characterised in that described colouring agent is
There are metal powder type pigment, metal-oxide, carbon type pigment, sulfide type pigment, chromic salts type pigment, cyaniding swage face
Material, azo type pigment, acid dye pigment, basic dye type pigment, phthalocyanine, quinacridone type pigment and dioxanes type pigment
In one or more.
6. a kind of carbon dust for being used to heat fixation process according to claim 1, it is characterised in that described wax is poly- Asia
One or more in alkyl wax, ester type waxes, ceresine, Brazil wax, paraffin, Montaen waxes and rice wax.
7. a kind of carbon dust for being used to heat fixation process according to claim 1, it is characterised in that described electric charge regulation
Agent is divided into elecrtonegativity charge adjusting agent and electropositive charge adjusting agent；
The elecrtonegativity charge adjusting agent is the azo dyes containing chromium, the organic metal dyestuff or chelating of monomer azo metal dye
One or more in thing, salicylate compound containing metal, aromatic hydroxycarboxylic acids and aromatic dicarboxylic acid；
The electropositive charge adjusting agent is Ni Ge and its fatty acid metal salts, tributyl benzyl ammonium chloride, 1- hydroxyls, 4- naphthalene sulphurs
One or more in the salt containing 4 grades of ammoniums such as hydrochlorate and tetrabutylammonium and tetrafluoro boric acid.
8. a kind of preparation method as claimed in claim 1 for being used to heat the carbon dust of fixation process, it is characterised in that including under
State step：
Step 1：Binder resin, colouring agent, wax and charge adjusting agent are mixed, stirring；
Step 2：Said mixture is extruded using biaxial extruder, particle diameter is crushed to for 5~25 μm, obtains carbon dust.
9. a kind of preparation method for being used to heat the carbon dust of fixation process according to claim 8, it is characterised in that step
Mixing speed described in 1 is 500~1000rpm, and mixing time is 30s~30min.
10. a kind of preparation method for being used to heat the carbon dust of fixation process according to claim 8, it is characterised in that step
Extrusion temperature described in rapid 2 is 90~170 DEG C.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109613805A (en) * | 2018-12-28 | 2019-04-12 | 天津市中环天佳电子有限公司 | A kind of non magnetic elecrtonegativity duplicator color toner and preparation method |
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