CN104614957A - Carbon powder and production method thereof - Google Patents
Carbon powder and production method thereof Download PDFInfo
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- CN104614957A CN104614957A CN201510071781.8A CN201510071781A CN104614957A CN 104614957 A CN104614957 A CN 104614957A CN 201510071781 A CN201510071781 A CN 201510071781A CN 104614957 A CN104614957 A CN 104614957A
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Abstract
The invention provides carbon powder. The carbon powder is prepared from the following components in parts by mass: 85-95 parts of bonding resin, 2-8 parts of a coloring agent, 0.1-5 parts of an electric charge control agent, 1-6 parts of de-molding agent and 1-10 parts of a magnetic material. A magnetic material is successfully used in non-magnetic powder, and the related properties of the magnetic material, such as high rigidity, large density and strong dispersity can be utilized, so that the defects of the carbon powder in a developing and photographic fixing process are improved. The effects of the carbon powder are mainly represented in the following two aspects: firstly, the magnetic material is added so that the density of carbon powder particles becomes large, and a powder flying problem in a high-speed printing material can be improved; secondly, the magnetic material is oxide of iron so that the specific resistance of the carbon powder particles can be reduced by the magnetic material, and furthermore, the electric charge uniformity of each carbon powder particle is better and the stability is better; and the problem of shallow color at the later period is well solved.
Description
Technical field
The invention belongs to the consumptive material field of imagewise development equipment, be specifically related to carry out the carbon dust of modification and the manufacture method of carbon dust by magnetic material to carbon dust.
Background technology
In electronic camera technology and electrostatic recording technique, by carrying out exposure process on the photoreceptor of uniform charged, thus form electrostatic latent image, toner is attached on the shallow picture of this electrostatic to form toner image, then, toner image is transferred on transfer member and (is generally paper).Thereupon, various method (such as, heating process, pressing process or solvent evaporation procedure) is used by the toner image of institute's transfer printing on paper.Usually, in fixing, the paper with toner image passes through between fixing roller and pressure roll, then, by heating and suppressing, is melted by toner and penetrates in paper, thus form stable image.
By in the process of toner transfer paper paper, such as in the process of printing character or pattern, the defect of print quality is from the performance paper, substantially can be divided into two classes: the first kind is that powder not go up in place paper should being gone up powder or upper powder is very few, such as look shallow, blackboard whiting, sticky drum, glue cutter etc.; Equations of The Second Kind is the powder in the localities paper should not being gone up powder, and such as bottom ash, ghost image, blank stain, waft powder etc.Typically, the tolerable of first kind defect is higher than Equations of The Second Kind defect.
The basic step of developing process is as follows: the first step is powder delivery process, carbon dust is evenly distributed to developer roll from powder box by powder feeding rod, carbon dust contact powder delivery scraper in the process, carbon dust is attached on powder delivery scraper, just there will be sticky cutter defect, namely print on specimen page and occur longitudinal sharp-pointed white lines.Second step is developing process, carbon dust is attached to organic photo conductor (OPC) from developing roller surface by potential difference (PD) and forms the position of electrostatic latent image, in this process, position OPC not being formed electrostatic latent image also contacts carbon dust, charging roller also can contact carbon dust, carbon dust appears at the place that OPC does not form electrostatic latent image, can cause bottom ash defect, namely prints blank space on specimen page and to seem sordid problem.3rd step is transfer process, a carbon dust part is attached to paper from OPC surface by potential difference (PD), a part enters waste powder hopper by useless powder scraper, carbon dust contact OPC, charging roller, useless powder scraper in the process, if the amount that OPC surface carbon dust is attached on paper is very few, the problems such as transferring rate is low, page output is on the low side, useless powder wharf explosion, pollution charging roller will be caused, even likely cause ghost phenomena to occur, cannot come off if carbon dust is attached to OPC surface, sticky drum phenomenon will be caused.4th step is fixing, and by temperature-pressure, ink powder is melted embedding paper fiber, carbon dust contacts warm-up mill and pressure roll in the process, and easily occurs fixing problem, the sticky problem such as warm-up mill and pressure roll in the process.
Usually, carbon dust is made up of the binder resin of significant quantity, a small amount of wax (as release agent), colorant, charge control agent and external additive.Such as application number is that the Chinese invention patent application of CN201110179620.2 discloses a kind of developer for printer, and the resin of developer have employed degradable biological superpolymer.Application number is the manufacture method that the Chinese invention patent application of CN201110351543.4 discloses a kind of positive-electricity powdered ink developing agent, thus reduces the defect of spot and the ghost phenomena occurred in printing.Application number is that the Chinese invention patent application of CN201210085467.1 discloses a kind of additional composite function material for electrostatic developer, this adjuvant includes magnetic powder, silicone oil, zinc stearate and aerosil, this technical scheme adheres to photosensitive drums in being intended to prevent toner from using, solve the hollow phenomenon of writings and image, reduce waviness phenomena.But, in practice process, find that the component of this adjuvant and ratio need to carry out improving and optimizing, thus obtain better technique effect.
All in all, determine that the principal element of carbon dust print quality is summed up mainly two aspects, be the thermal behavior of carbon dust on the one hand, thermal behavior determines primarily of resin and wax; Be the electrical property of carbon dust on the other hand, electrical property is controlled by charge control agent and external additive, makes carbon powder particles obtain suitable electricity by methods such as agitating frictions.Therefore, for existing carbon dust, the electrical property of carbon dust haves much room for improvement.
Summary of the invention
Based on carbon dust Problems existing in prior art, the first object of the present invention is to provide a kind of carbon dust.Another object of the present invention is to provide a kind of manufacture method of carbon dust.Another object of the present invention is to provide the manufacture method of another kind of carbon dust.
Carbon dust provided by the invention comprises the component of following percentage by weight: binder resin is 85% to 90%; Colorant is 4% to 7%; Charge control agent is 0.1% to 3%; Release agent is 1% to 5%; Magnetic material is 1% to 6%.
Features such as taking such scheme, be successfully used in non magnetic carbon dust by magnetic material, and utilize the correlation properties of magnetic material, namely hardness is high, density large, dispersiveness is strong, with this for improving the defect of carbon dust in developing fixing process.Its effect is mainly reflected in following two aspects: first aspect is adding by magnetic material, makes carbon powder particles density become large, can improve to fly powder problem in flying print process; Second aspect, because magnetic material mostly is the oxide of iron, therefore magnetic material can reduce the resistivity of carbon powder particles, and thus make the charge homogeneity of each carbon powder particles better, stability is better, is conducive to improving later stage look shallow problem.It should be noted that, can be divided into magnetic carbon powder and non magnetic carbon dust according to the magnetic of carbon dust in existing carbon dust, the carbon dust of this two kind is applied on different types of printer respectively.The content of the magnetic material in magnetic carbon powder is significant quantity, in carbon dust provided by the invention, magnetic material content is lower, and utilizing its correlation properties to improve the problems such as powder that fly of carbon dust, carbon dust provided by the invention is applied on the printer of the corresponding model of non magnetic carbon dust.
A preferred scheme is, binder resin is styrene acrylate resins or vibrin; The vibrin of linear polyester resin or low crosslinking degree selected by vibrin, vibrin is the polyester that dicarboxylic acids and dibasic alcohol or dihydric phenol are obtained by reacting, wherein dicarboxylic acids is phthalic acid, m-phthalic acid, terephthalic acid (TPA), hexane diacid or succinic acid, dibasic alcohol is ethylene glycol, propylene glycol, butylene glycol, hexylene glycol or cyclohexanediol, and dihydric phenol is p-dihydroxy-benzene, catechol, resorcinol or bisnaphthol; Styrene acrylate resins comprises the following material of at least one: styrene methylacrylate multipolymer, styrene ethylacrylate multipolymer, styrene-butyl acrylate copolymer, styrene methyl methacrylate multipolymer, styrene methacrylic acid methacrylate copolymers, styrene methyl ester butyl acrylate multipolymer.
A preferred scheme is that charge control agent comprises electronegativity charge control agent or positive charge control agent; Electronegativity charge control agent is containing the azo dyes of chromium, Monoazo metal complex or chelate compound, metallic salicylic acid compound, metal-organic complex containing aromatic hydroxy-carboxylic or aromatic dicarboxylic acid; Positive charge control agent is nigrosine and modified product thereof, fatty acid metal salts, salt, tributyl benzyl ammonium-1-hydroxyl-4-naphthol sulfonate or TBuA tetrafluoroborate containing quaternary amine; Release agent comprises the following material of at least one: Tissuemat E, polypropylene wax, paraffin, Fischer-Tropsch wax, oxidized polyethlene wax, montanic acid ester type waxes, palm wax, microcrystalline wax, rice wax or fatty acid wax; Colorant is black colorant or colour colouring pigment, and black colorant is carbon black, and colour colouring pigment is at least one in yellow colorants, carmetta colorant and cyan colorant.
A preferred scheme is, magnetic material is at least one in tri-iron tetroxide, γ-di-iron trioxide, magnetic iron ore powder, zinc-iron oxide, oxidation yttrium iron, calcium oxide iron, gadolinium oxide iron, cupric oxide iron, oxidation galvanized iron, oxidation ferronickel, neodymia iron, baryta iron, magnesium oxide iron, Manganese Iron, lanthana iron, iron powder, cobalt powder and nickel powder.
The manufacture method of the first carbon dust provided by the invention comprises the following steps: binder resin, colorant, charge control agent, release agent and magnetic material are undertaken being mixed to get the first potpourri by mixer; First potpourri is extruded and is obtained the second potpourri after mixing, and the melting temperature scope wherein in mixing process is 80 DEG C to 130 DEG C; Second potpourri obtains the 3rd potpourri after carrying out fragmentation by disintegrating machine; 3rd potpourri carries out classification by airslide disintegrating mill, removes the particle being greater than 15 microns and being less than 5 microns, obtains the particle that mean grain size is 8 microns to 12 microns, form carbon dust finished product; Carbon dust finished product comprises the component of following percentage by weight: binder resin is 85% to 90%; Colorant is 4% to 7%; Charge control agent is 0.1% to 3%; Release agent is 1% to 5%; Magnetic material is 1% to 6%.
Take such scheme, this manufacturing approach craft is simple, is easy to be applied in commercial production, thus obtains the carbon dust including magnetic material of reasonable mixture ratio of components.
A preferred scheme is that mixer is vertical mixer, and the mixing velocity of vertical mixer is 125 rev/min to 250 rev/min, and incorporation time is 1 minute to 3 minutes; In mixing process, adopt horizontal extruder to extrude, and horizontal extruder at least have 5 warm areas.
Take such scheme, mixing efficiency is high, and mixed effect is excellent, takes the horizontal extruder of at least 5 warm areas, the extrudate excellent obtained.
The manufacture method of the second carbon dust provided by the invention comprises the following steps: by binder resin, colorant, charge control agent, release agent and the first magnetic material, is undertaken being mixed to get the first potpourri by mixer; First potpourri obtains the second potpourri through mixing extrusion, and the melting temperature scope wherein in mixing process is 80 DEG C to 130 DEG C; Second potpourri obtains the 3rd potpourri after carrying out fragmentation by disintegrating machine; 3rd potpourri carries out classification by airslide disintegrating mill, removes the particle being greater than 15 microns and being less than 5 microns, obtains the particle that mean grain size is 8 microns to 12 microns, form carbon dust semi-manufacture; Carbon dust semi-manufacture comprise the component of following percentage by weight: binder resin is 85% to 90%; Colorant is 4% to 7%; Charge control agent is 0.1% to 3%; Release agent is 1% to 5%; First magnetic material is 1% to 6%; Subsequently, carbon dust semi-manufacture are 95 to 98 mass parts, the first aerosil is 0.7 to 2.1 mass parts and adjuvant is 0.5 to 2.0 mass parts, 4 mixture is mixed to get by mixer, adjuvant is made up of the mass percent of following component: the second magnetic material is 80% to 95%, second aerosil is 3% to 15%, and subsidiary function agent is 1% to 5%; 4 mixture is by obtaining carbon dust finished product after 100 order to 150 object sieve.
Take such scheme, relative to upper a kind of manufacture method, magnetic material is added in carbon dust by this programme at twice, that is, first after adding the first magnetic material mixing, obtain carbon dust semi-manufacture, carbon dust semi-manufacture mix with the second magnetic material and obtain carbon dust finished product.Based on this scheme, on the one hand, some material such as magnetic material and binder resin presents homogeneous phase dispersion; On the other hand, by means of the effect of aerosil, strengthen the dispersive property of magnetic material in carbon powder particle further.After experiment, the carbon dust taking the manufacture method adding magnetic material for twice to obtain can reduce further and flies powder problem in developing process, improves carbon dust electrical property, and reduces look shallow problem further.Specifically, according to prior art, conventional non magnetic powder uses aerosil, metal oxide (aluminium oxide or titanium dioxide in the majority) or other functional external additive (as resin beads, stearate etc.) as the character improved additives of carbon dust in the fabrication process usually.An acting body of metal oxide (as titania) keeps carbon dust charge stability under various conditions now, and it still can keep stable electric charge behavior through long stirring under hot and humid and low temperature and low humidity condition.Lower and hardly by the impact of humidity through its electric density of carbon dust surface of metal oxide treated.And this programme uses magnetic material such as tri-iron tetroxide to replace conventional metal oxides, can play like metal oxide-type and act on, meanwhile, magnetic material cost is much lower compared with titania, and not yet finds at present to add on a small quantity and fashionablely can produce ill effect.As clean, brilliant polish, an effect of common metal oxide (as alundum (Al2O3)) embodies the function of similar brilliant polish, but its Mohs value is very high, it has certain cleaning action to photosensitive drums and powder delivery scraper, can prevent printed product from occurring sticky OPC and sticky scraper defect, and the magnetic material that this programme uses still can have and play similar effect.As outer interpolation spreading agent, outside in adding procedure, some functional external additive (as resin beads, stearate etc.) consumption is little, and consumption and sensitivity thereof, and easily occur in rear mixed process dispersion uneven and phenomenon, the external additive that therefore this programme provides can, as a kind of self-control external additive, then add in carbon dust, can the consumption of comparatively accurate controlling functions external additive, ensure the homogeneity of ink powder.
A preferred scheme is, subsidiary function agent is stearate or resin beads.
A preferred scheme is, first aerosil comprises the 3rd aerosil and the 4th aerosil, the particle diameter of the 3rd aerosil is 10 nanometer to 15 nanometers and electronegative, the particle diameter of the 4th aerosil is 5 nanometer to 12 nanometers and electronegative, and the ratio of the weight that the 3rd aerosil and the 4th aerosil add is 1:6 to 1:15; The particle diameter of adjuvant is 20 nanometer to 50 nanometers.
Take such scheme, use two kinds of aerosils, dispersion effect is better, in addition, in technical scheme, the particle size range of silicon dioxide, weight ratio that is electrical, that add limited and optimized, taking the scheme after optimizing, the character also corresponding optimization of the carbon dust obtained.
A preferred scheme is, the preparation method of adjuvant is: be first fed in mixer by the second aerosil, the second magnetic material and subsidiary function agent, 30 seconds to 60 seconds are mixed under the rotating speed of 75 rev/min, after suspending 30 seconds to 60 seconds, under the rotating speed of 250 rev/min, mix 60 seconds to 240 seconds.
Take such scheme, be uniformly dispersed between the various component of the adjuvant obtained.
Embodiment
In the present invention, binder resin is styrene acrylate resins or vibrin; The vibrin of linear polyester resin or low crosslinking degree selected by vibrin, vibrin is the polyester that dicarboxylic acids and dibasic alcohol or dihydric phenol are obtained by reacting, wherein dicarboxylic acids is phthalic acid, m-phthalic acid, terephthalic acid (TPA), hexane diacid or succinic acid, dibasic alcohol is ethylene glycol, propylene glycol, butylene glycol, hexylene glycol or cyclohexanediol, and dihydric phenol is p-dihydroxy-benzene, catechol, resorcinol or bisnaphthol; Styrene acrylate resins comprises the following material of at least one: styrene methylacrylate multipolymer, styrene ethylacrylate multipolymer, styrene-butyl acrylate copolymer, styrene methyl methacrylate multipolymer, styrene methacrylic acid methacrylate copolymers, styrene methyl ester butyl acrylate multipolymer.
Charge control agent comprises electronegativity charge control agent or positive charge control agent.Electronegativity charge control agent is containing the azo dyes of chromium, Monoazo metal complex or chelate compound, metallic salicylic acid compound, metal-organic complex containing aromatic hydroxy-carboxylic or aromatic dicarboxylic acid; Positive charge control agent is nigrosine and modified product thereof, fatty acid metal salts, salt, tributyl benzyl ammonium-1-hydroxyl-4-naphthol sulfonate or TBuA tetrafluoroborate containing quaternary amine.
Release agent comprises the following material of at least one: Tissuemat E, polypropylene wax, paraffin, Fischer-Tropsch wax, oxidized polyethlene wax, montanic acid ester type waxes, palm wax, microcrystalline wax, rice wax or fatty acid wax.
Colorant is black colorant or colour colouring pigment, and black colorant is carbon black, and colour colouring pigment is at least one in yellow colorants, carmetta colorant and cyan colorant.
Magnetic material or the first magnetic material or the second magnetic material are at least one in tri-iron tetroxide, γ-di-iron trioxide, magnetic iron ore powder, zinc-iron oxide, oxidation yttrium iron, calcium oxide iron, gadolinium oxide iron, cupric oxide iron, oxidation galvanized iron, oxidation ferronickel, neodymia iron, baryta iron, magnesium oxide iron, Manganese Iron, lanthana iron, iron powder, cobalt powder and nickel powder.
Subsidiary function agent of the present invention can be stearate or resin beads, and stearate can be zinc stearate.
First embodiment
The starting material of binder resin 86 mass parts, colorant 6 mass parts, charge control agent 2 mass parts, release agent 3 mass parts, the first magnetic material 3 mass parts are undertaken being mixed to get the first potpourri by vertical mixer, mixed method is that 25HZ mixes 1 minute to 2 minutes, and wherein 1HZ equals rev/min 5 rpms (rpm).First potpourri obtains the second potpourri through mixing extrusion, adopt horizontal extruder to carry out, and horizontal extruder has the warm area of more than 5 in mixing process, and the melting temperature scope control in mixing process is at 80 DEG C to 130 DEG C.Second potpourri obtains the 3rd potpourri after carrying out fragmentation by disintegrating machine.3rd potpourri, by after airslide disintegrating mill and classification, obtains the particle that mean grain size is 10 microns, removes the particle being greater than 15 microns and being less than 5 microns, forms carbon dust semi-manufacture.
Subsequently, carbon dust semi-manufacture are 95 mass parts, the first aerosil is 0.8 mass parts and adjuvant is 0.7 mass parts, 4 mixture is mixed to get by mixer, adjuvant is made up of the mass percent of following component: the second magnetic material is 80%, second aerosil is 15%, and subsidiary function agent is 5%; 4 mixture is by obtaining carbon dust finished product after 100 order to 150 object sieve.
The carbon dust that the present embodiment obtains is at Samsung ML-1610 series (in middling speed capacity), Samsung MLT-104 series (low speed low capacity), Samsung MLT-D305s(high speed high power capacity) environment under carry out printing test, excellent effect, the print quality problems such as the sticky cutter of perfect solution, sticky drum, later stage look shallow.
Second embodiment
By binder resin 87 mass parts, colorant 5 mass parts, charge control agent 1 mass parts, release agent 5 mass parts, the first magnetic material 3 mass parts, undertaken being mixed to get the first potpourri by vertical mixer, mixed method is that 150 rev/min mix 1 minute to 3 minutes.First potpourri obtains the second potpourri through mixing extrusion, adopt horizontal extruder to carry out, and horizontal extruder has the warm area of more than 5 in mixing process, and the melting temperature scope control in mixing process is at 80 DEG C to 130 DEG C.Second potpourri obtains the 3rd potpourri after carrying out fragmentation by disintegrating machine.3rd potpourri, by after airslide disintegrating mill and classification, obtains the particle that mean grain size is 11 microns, removes the particle being greater than 15 microns and being less than 5 microns, forms carbon dust semi-manufacture.
Subsequently, carbon dust semi-manufacture are 96 mass parts, the first aerosil is 1.0 mass parts and adjuvant is 1.0 mass parts, are mixed to get 4 mixture by mixer.Adjuvant is made up of the mass percent of following component: the second magnetic material is the 83%, second aerosil is 14%, and subsidiary function agent is 3%.4 mixture is by obtaining carbon dust finished product after 100 order to 150 object sieve.In the present embodiment, first aerosil comprises the 3rd aerosil and the 4th aerosil, the particle diameter of the 3rd aerosil is 10 nanometer to 15 nanometers and electronegative, the particle diameter of the 4th aerosil is 5 nanometer to 12 nanometers and electronegative, the ratio of the weight that the 3rd aerosil and the 4th aerosil add is 1:8, and the particle diameter of adjuvant is 20 nanometer to 50 nanometers.4 mixture is by obtaining carbon dust finished product after 100 order to 150 object sieve.
3rd embodiment
By binder resin 89 mass parts, colorant 6 mass parts, charge control agent 1 mass parts, release agent 2 mass parts, the first magnetic material 2 mass parts, undertaken being mixed to get the first potpourri by vertical mixer, mixed method is that 150 rev/min mix 1 minute to 3 minutes.First potpourri obtains the second potpourri through mixing extrusion, adopt horizontal extruder to carry out, and horizontal extruder has the warm area of more than 5 in mixing process, and the melting temperature scope control in mixing process is at 80 DEG C to 130 DEG C.Second potpourri obtains the 3rd potpourri after carrying out fragmentation by disintegrating machine.3rd potpourri, by after airslide disintegrating mill and classification, obtains the particle that mean grain size is 9 microns, removes the particle being greater than 15 microns and being less than 5 microns, forms carbon dust semi-manufacture.
Subsequently, carbon dust semi-manufacture are 97 mass parts, the first aerosil is 1.5 mass parts and adjuvant is 1.9 mass parts, are mixed to get 4 mixture by mixer.Adjuvant is made up of the mass percent of following component: the second magnetic material is the 94%, second aerosil is 4%, and subsidiary function agent is 2%.4 mixture is by obtaining carbon dust finished product after 100 order to 150 object sieve.In the present embodiment, first aerosil comprises the 3rd aerosil and the 4th aerosil, the particle diameter of the 3rd aerosil is 10 nanometer to 15 nanometers and electronegative, the particle diameter of the 4th aerosil is 5 nanometer to 12 nanometers and electronegative, the ratio of the weight that the 3rd aerosil and the 4th aerosil add is 1:10, and the particle diameter of adjuvant is 20 nanometer to 50 nanometers.4 mixture is by obtaining carbon dust finished product after 100 order to 150 object sieve.
4th embodiment
By binder resin 89 mass parts, colorant 6 mass parts, charge control agent 1 mass parts, release agent 2 mass parts, the first magnetic material 2 mass parts, undertaken being mixed to get the first potpourri by vertical mixer, mixed method is that 150 rev/min mix 1 minute to 3 minutes.First potpourri obtains the second potpourri through mixing extrusion, adopt horizontal extruder to carry out, and horizontal extruder has the warm area of more than 5 in mixing process, and the melting temperature scope control in mixing process is at 80 DEG C to 130 DEG C.Second potpourri obtains the 3rd potpourri after carrying out fragmentation by disintegrating machine.3rd potpourri, by after airslide disintegrating mill and classification, obtains the particle that mean grain size is 9 microns, removes the particle being greater than 15 microns and being less than 5 microns, forms carbon dust semi-manufacture.
5th embodiment
By binder resin 90 mass parts, colorant 4 mass parts, charge control agent 1 mass parts, release agent 2 mass parts, the first magnetic material 3 mass parts, undertaken being mixed to get the first potpourri by vertical mixer, mixed method is that 150 rev/min mix 1 minute to 3 minutes.First potpourri obtains the second potpourri through mixing extrusion, adopt horizontal extruder to carry out, and horizontal extruder has the warm area of more than 5 in mixing process, and the melting temperature scope control in mixing process is at 80 DEG C to 130 DEG C.Second potpourri obtains the 3rd potpourri after carrying out fragmentation by disintegrating machine.3rd potpourri, by after airslide disintegrating mill and classification, obtains the particle that mean grain size is 9 microns, removes the particle being greater than 15 microns and being less than 5 microns, forms carbon dust finished product.
6th embodiment
By binder resin 87 mass parts, colorant 5 mass parts, charge control agent 1 mass parts, release agent 3 mass parts, the first magnetic material 4 mass parts, undertaken being mixed to get the first potpourri by vertical mixer, mixed method is that 150 rev/min mix 1 minute to 3 minutes.First potpourri obtains the second potpourri through mixing extrusion, adopt horizontal extruder to carry out, and horizontal extruder has the warm area of more than 5 in mixing process, and the melting temperature scope control in mixing process is at 80 DEG C to 130 DEG C.Second potpourri obtains the 3rd potpourri after carrying out fragmentation by disintegrating machine.3rd potpourri, by after airslide disintegrating mill and classification, obtains the particle that mean grain size is 9 microns, removes the particle being greater than 15 microns and being less than 5 microns, forms carbon dust finished product.
Claims (10)
1. carbon dust, is characterized in that: described carbon dust comprises the component of following percentage by weight:
Binder resin 85% to 90%;
Colorant 4% to 7%;
Charge control agent 0.1% to 3%;
Release agent 1% to 5%;
Magnetic material 1% to 6%.
2. carbon dust according to claim 1, is characterized in that:
Described binder resin is styrene acrylate resins and/or vibrin;
The vibrin of linear polyester resin or low crosslinking degree selected by described vibrin, described vibrin is the polyester that dicarboxylic acids and dibasic alcohol or dihydric phenol are obtained by reacting, wherein said dicarboxylic acids is phthalic acid, m-phthalic acid, terephthalic acid (TPA), hexane diacid or succinic acid, described dibasic alcohol is ethylene glycol, propylene glycol, butylene glycol, hexylene glycol or cyclohexanediol, and described dihydric phenol is p-dihydroxy-benzene, catechol, resorcinol or bisnaphthol;
Described styrene acrylate resins comprises the following material of at least one: styrene methylacrylate multipolymer, styrene ethylacrylate multipolymer, styrene-butyl acrylate copolymer, styrene methyl methacrylate multipolymer, styrene methacrylic acid methacrylate copolymers, styrene methyl ester butyl acrylate multipolymer.
3. carbon dust according to claim 1, is characterized in that:
Described charge control agent comprises electronegativity charge control agent or positive charge control agent; Described electronegativity charge control agent is containing the azo dyes of chromium, Monoazo metal complex or chelate compound, metallic salicylic acid compound, metal-organic complex containing aromatic hydroxy-carboxylic or aromatic dicarboxylic acid; Described positive charge control agent is nigrosine and modified product thereof, fatty acid metal salts, salt, tributyl benzyl ammonium-1-hydroxyl-4-naphthol sulfonate or TBuA tetrafluoroborate containing quaternary amine;
Described release agent comprises the following material of at least one: Tissuemat E, polypropylene wax, paraffin, Fischer-Tropsch wax, oxidized polyethlene wax, montanic acid ester type waxes, palm wax, microcrystalline wax, rice wax or fatty acid wax;
Described colorant is black colorant or colour colouring pigment, and described black colorant is carbon black, and described colour colouring pigment is at least one in yellow colorants, carmetta colorant and cyan colorant.
4. carbon dust according to claim 1, is characterized in that:
Described magnetic material is at least one in tri-iron tetroxide, γ-di-iron trioxide, magnetic iron ore powder, zinc-iron oxide, oxidation yttrium iron, calcium oxide iron, gadolinium oxide iron, cupric oxide iron, oxidation galvanized iron, oxidation ferronickel, neodymia iron, baryta iron, magnesium oxide iron, Manganese Iron, lanthana iron, iron powder, cobalt powder and nickel powder.
5. a manufacture method for carbon dust, is characterized in that:
Comprise the following steps: binder resin, colorant, charge control agent, release agent and magnetic material are undertaken being mixed to get the first potpourri by mixer;
Described first potpourri is extruded and is obtained the second potpourri after mixing, and the melting temperature scope wherein in mixing process is 80 DEG C to 130 DEG C;
Described second potpourri obtains the 3rd potpourri after carrying out fragmentation by disintegrating machine;
Described 3rd potpourri carries out classification by airslide disintegrating mill, removes the particle being greater than 15 microns and being less than 5 microns, obtains the particle that mean grain size is 8 microns to 12 microns, form carbon dust finished product;
Described carbon dust finished product comprises the component of following percentage by weight: binder resin is 85% to 90%; Colorant is 4% to 7%; Charge control agent is 0.1% to 3%; Release agent is 1% to 5%; Magnetic material is 1% to 6%.
6. carbon dust manufacture method according to claim 5, is characterized in that:
Described mixer is vertical mixer, and the mixing velocity of described vertical mixer is 125 rev/min to 250 rev/min, and incorporation time is 1 minute to 3 minutes;
In described mixing process, adopt horizontal extruder to extrude, and described horizontal extruder at least have 5 warm areas.
7. a manufacture method for carbon dust, is characterized in that:
Comprise the following steps: by binder resin, colorant, charge control agent, release agent, the first magnetic material, undertaken being mixed to get the first potpourri by mixer;
Described first potpourri obtains the second potpourri through mixing extrusion, and the melting temperature scope wherein in mixing process is 80 DEG C to 130 DEG C;
Described second potpourri obtains the 3rd potpourri after carrying out fragmentation by disintegrating machine;
Described 3rd potpourri carries out classification by airslide disintegrating mill, removes the particle being greater than 15 microns and being less than 5 microns, obtains the particle that mean grain size is 8 microns to 12 microns, form carbon dust semi-manufacture;
Described carbon dust semi-manufacture comprise the component of following percentage by weight: binder resin is 85% to 90%; Colorant is 4% to 7%; Charge control agent is 0.1% to 3%; Release agent is 1% to 5%; First magnetic material is 1% to 6%;
Described carbon dust semi-manufacture are 95 to 98 mass parts, the first aerosil is 0.7 to 2.1 mass parts and adjuvant is 0.5 to 2.0 mass parts, 4 mixture is mixed to get by mixer, described adjuvant is made up of the mass percent of following component: the second magnetic material is 80% to 95%, second aerosil is 3% to 15%, and subsidiary function agent is 1% to 5%;
Described 4 mixture is by obtaining carbon dust finished product after 100 order to 150 object sieve.
8. the manufacture method of carbon dust according to claim 7, is characterized in that:
Described subsidiary function agent is stearate or resin beads.
9. the carbon dust manufacture method according to claim 7 or 8, is characterized in that:
Described first aerosil comprises the 3rd aerosil and the 4th aerosil, the particle diameter of described 3rd aerosil is 10 nanometer to 15 nanometers and electronegative, the particle diameter of described 4th aerosil is 5 nanometer to 12 nanometers and electronegative, and the ratio of the weight that described 3rd aerosil and described 4th aerosil add is 1:6 to 1:15;
The particle diameter of described adjuvant is 20 nanometer to 50 nanometers.
10. the carbon dust manufacture method according to claim 7 or 8, is characterized in that:
The preparation method of described adjuvant is: be first fed in mixer by described second aerosil, described second magnetic material and described subsidiary function agent, 30 seconds to 60 seconds are mixed under the rotating speed of 75 rev/min, after suspending 30 seconds to 60 seconds, under the rotating speed of 250 rev/min, mix 60 seconds to 240 seconds.
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| CN201510071781.8A CN104614957A (en) | 2015-02-11 | 2015-02-11 | Carbon powder and production method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419021A (en) * | 2015-12-30 | 2016-03-23 | 上海华仕科技工程有限公司 | High-strength oil-resistant rubber magnetic block embedded type colored identification strip and preparation method thereof |
| CN107272355A (en) * | 2017-08-07 | 2017-10-20 | 湖北远东卓越科技股份有限公司 | One kind polymerization carbon dust and preparation method thereof |
| CN109844896A (en) * | 2016-07-28 | 2019-06-04 | 达克赛德科技公司 | Electro-luminescent systems and technique |
| CN111123668A (en) * | 2019-12-31 | 2020-05-08 | 珠海泽鹏打印耗材有限公司 | Preparation formula of high-definition printing carbon powder |
| CN111158225A (en) * | 2019-12-31 | 2020-05-15 | 珠海泽鹏打印耗材有限公司 | High-definition printing carbon powder preparation process |
| CN111607182A (en) * | 2020-06-08 | 2020-09-01 | 张家港威迪森化学有限公司 | Styrene-acrylic copolymer resin composition and preparation method and application thereof |
| CN111607184A (en) * | 2020-06-10 | 2020-09-01 | 张家港威迪森化学有限公司 | Styrene-acrylic copolymer resin mixture and preparation method and application thereof |
| CN117761982A (en) * | 2024-01-20 | 2024-03-26 | 广州市三横信息科技有限公司 | Preparation method of modified carbon powder and carbon powder box |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1151036A (en) * | 1994-11-08 | 1997-06-04 | 佳能株式会社 | Image forming method and image forming apparatus |
| CN101185038A (en) * | 2005-05-24 | 2008-05-21 | 三菱化学株式会社 | Electrophotographic photoreceptor and image forming apparatus using the electrophotographic photoreceptor |
| CN101248394A (en) * | 2005-08-23 | 2008-08-20 | 三菱化学株式会社 | Production method of static charge image developing toner and screen device |
| CN101410763A (en) * | 2006-03-30 | 2009-04-15 | 三菱化学株式会社 | Image forming apparatus |
| CN102314105A (en) * | 2011-06-23 | 2012-01-11 | 珠海思美亚碳粉有限公司 | Developing agent for printer |
-
2015
- 2015-02-11 CN CN201510071781.8A patent/CN104614957A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1151036A (en) * | 1994-11-08 | 1997-06-04 | 佳能株式会社 | Image forming method and image forming apparatus |
| CN101185038A (en) * | 2005-05-24 | 2008-05-21 | 三菱化学株式会社 | Electrophotographic photoreceptor and image forming apparatus using the electrophotographic photoreceptor |
| CN101248394A (en) * | 2005-08-23 | 2008-08-20 | 三菱化学株式会社 | Production method of static charge image developing toner and screen device |
| CN101410763A (en) * | 2006-03-30 | 2009-04-15 | 三菱化学株式会社 | Image forming apparatus |
| CN102314105A (en) * | 2011-06-23 | 2012-01-11 | 珠海思美亚碳粉有限公司 | Developing agent for printer |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419021A (en) * | 2015-12-30 | 2016-03-23 | 上海华仕科技工程有限公司 | High-strength oil-resistant rubber magnetic block embedded type colored identification strip and preparation method thereof |
| CN109844896A (en) * | 2016-07-28 | 2019-06-04 | 达克赛德科技公司 | Electro-luminescent systems and technique |
| CN107272355A (en) * | 2017-08-07 | 2017-10-20 | 湖北远东卓越科技股份有限公司 | One kind polymerization carbon dust and preparation method thereof |
| CN111123668A (en) * | 2019-12-31 | 2020-05-08 | 珠海泽鹏打印耗材有限公司 | Preparation formula of high-definition printing carbon powder |
| CN111158225A (en) * | 2019-12-31 | 2020-05-15 | 珠海泽鹏打印耗材有限公司 | High-definition printing carbon powder preparation process |
| CN111607182A (en) * | 2020-06-08 | 2020-09-01 | 张家港威迪森化学有限公司 | Styrene-acrylic copolymer resin composition and preparation method and application thereof |
| CN111607182B (en) * | 2020-06-08 | 2022-04-22 | 张家港威迪森化学有限公司 | Styrene-acrylic copolymer resin composition and preparation method and application thereof |
| CN111607184A (en) * | 2020-06-10 | 2020-09-01 | 张家港威迪森化学有限公司 | Styrene-acrylic copolymer resin mixture and preparation method and application thereof |
| CN111607184B (en) * | 2020-06-10 | 2022-07-05 | 张家港威迪森化学有限公司 | Styrene-acrylic copolymer resin mixture and preparation method and application thereof |
| CN117761982A (en) * | 2024-01-20 | 2024-03-26 | 广州市三横信息科技有限公司 | Preparation method of modified carbon powder and carbon powder box |
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