CN101859077B - Chemical synthesis method of colored carbon powder - Google Patents
Chemical synthesis method of colored carbon powder Download PDFInfo
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- CN101859077B CN101859077B CN2010101648530A CN201010164853A CN101859077B CN 101859077 B CN101859077 B CN 101859077B CN 2010101648530 A CN2010101648530 A CN 2010101648530A CN 201010164853 A CN201010164853 A CN 201010164853A CN 101859077 B CN101859077 B CN 101859077B
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Abstract
The invention discloses a chemical synthesis method of colored carbon powder, which comprises the following steps of: a, mixing latex polymerizing macromolecule resin, colored colorant, charge control agent, deionized water and wax together, and uniformly stirring to prepare mixed solution; b, heating to 45-70 DEG C, adding a cross-linking agent, and keeping for 2 h; c, setting a magnetic field environment with a magnetostatic field and an alternating magnetic field, leading the solution to flow through the specific magnetic field environment, keeping for 10-20 min, cleaning with 8-10 times of deionized water in the specific magnetic field environment, filtering, drying and preparing into granular material; d, screen sizing the granular material to remove granules with the grain diameter greater than 10 microns and granules with the grain diameter less than 4 microns; e, adding the screened granular material into a mixer, adding an external additive, and uniformly mixing to prepare colored powdered ink. The invention has the advantages that larger grains are crushed into fine grains by utilizing magnetic resonance so that a majority of grains have the grain diameter between 4 and 10 microns, and the waste powder rate is reduced.
Description
Technical field:
The present invention relates to a kind of chemical synthesis process of colored carbon powder.
Background technology:
The tradition of employing warm-up mill and analog contacts the fusion fixation method and has been widely used in the carbon dust photographic fixing.Provide have warm-up mill and a pressure roll contact the used fixing device of fusion fixation method.When having carbon dust record images paper and pass the pressure contact sections (folder portion) between warm-up mill and the pressure roll this fixing device with the fusion of carbon dust image and photographic fixing on recording paper.
So far, at the recording unit that is used for obtaining through electrophotographic system coloured image, basic three primary colors develop corresponding to image information separately, and successively the carbon dust image that produces of stack to obtain coloured image.At present, the colored carbon powder that uses on color copy machine, color printer, colour facsimile apparatus and the chromatic printing machine is the polymerization carbon dust of chemosynthesis normally.This chemical polymerization carbon dust is mainly processed by other auxiliary materials such as emulsion, pigment and crosslinking chemicals.Its preparation method is earlier other auxiliary materials such as emulsion, pigment and crosslinking chemical to be put together, through evenly stirring, processes granular material, then, granular material is cleaned the buoyant on the flush away granular material.Afterwards, to carrying out dried through the granular material that cleaned.At last, in the granular material of treated mistake, add auxiliary materials such as silicon dioxide, and evenly mix and process; Its shortcoming is: after polyreaction, owing between the molecule bonding agglomerating trend is arranged, molecule can be embraced into bulk; Can bond together again between bulk and the bulk, become big bulk body, cause the granular material volume behind the chemical polymerization excessive; The size-grade distribution of carbon dust is wide, makes useless powder rate high.
Summary of the invention:
The objective of the invention is in order to overcome the shortcoming of above-mentioned prior art, provide a kind of yield rate the high and uniform colored carbon powder chemical synthesis process of pulverizing.
For realizing above-mentioned purpose, technical scheme provided by the invention is: a kind of chemical synthesis process of colored carbon powder is characterized in that may further comprise the steps:
A. emulsion polymerization macromolecule resin, colour colouring pigment, charge control agent, deionized water and wax are put together, stir, process mixed solution;
B. be heated to 45～70 ℃, add crosslinking chemical, kept two hours;
C. setting an existing static magnetic field has the magnetic field environment of alternating magnetic field again, lets flow of solution through this specific magnetic fields environment, and keeps 10～20 minutes, in this specific magnetic fields environment, uses 8～10 times of washed with de-ionized water, filtration, drying simultaneously, processes granular material;
D. to the granular material sizing screening, remove particle diameter greater than 10 microns, less than 4 microns particles
E. putting in the mixer, and add external additive,, process colored carbon powder through evenly mixing through garbled granular material.
Described adjuvant is one or more any mixing in silicon dioxide, hexamethyl dichlorosilane or the dimethyldichlorosilane.
Used crosslinking chemical is a high molecular polymer.
After adopting technique scheme, after the abundant polymerization of material, utilize magnetic resonance to be ground into fine grained to bulky grain, thus make most of particle all several kinds between 4 microns～10 microns, reduce useless powder rate.
Embodiment:
Embodiment one (making blue carbon powder):
A. 30 parts of emulsion polymerization macromolecule resins, 5 parts of phthalocyanine blues, 2 parts of charge control agents, 70 parts of deionized waters and 5 parts of waxes are put together, stir, process mixed solution;
B. be heated to 45 ℃, add 1 part of crosslinking chemical, kept two hours, used crosslinking chemical is a high molecular polymer;
C. setting an existing static magnetic field has the magnetic field environment of alternating magnetic field again; Let flow of solution through this specific magnetic fields environment; And kept 10 minutes; In this specific magnetic fields environment, use 9 times of washed with de-ionized water, filtration, drying simultaneously, the micelle grain that prevents to resonate after smashing bonds together the big bulk particle of formation again, thereby processes granular material;
D. to the granular material sizing screening, remove particle diameter greater than 10 microns, less than 4 microns particles
E. putting in the mixer, and add 12 parts of silicon dioxide,, process blue carbon powder through evenly mixing through garbled granular material.
Embodiment two (making red carbon powder):
A. 20 parts of emulsion polymerization macromolecule resins, 10 parts of bright fast scarlets, 1.5 parts of charge control agents, 80 parts of deionized waters and 6 parts of polypropylene waxes are put together, stir, process mixed solution;
B. be heated to 55 ℃, add 1.5 parts of crosslinking chemicals, kept two hours, used crosslinking chemical is a high molecular polymer;
C. setting an existing static magnetic field has the magnetic field environment of alternating magnetic field again; Let flow of solution through this specific magnetic fields environment; And kept 15 minutes; In this specific magnetic fields environment, use 8 times of washed with de-ionized water, filtration, drying simultaneously, the micelle grain that prevents to resonate after smashing bonds together the big bulk particle of formation again, thereby processes granular material;
D. to the granular material sizing screening, remove particle diameter greater than 10 microns, less than 4 microns particles
E. putting in the mixer, and add 0.5 part of hexamethyl dichlorosilane and 0.5 part of dimethyldichlorosilane,, process red carbon powder through evenly mixing through garbled granular material.
Embodiment three (making green carbon dust):
A. 40 parts of emulsion polymerization macromolecule resins, 15 parts of pigment green Bs, 3 parts of charge control agents, 100 parts of deionized waters and 8 parts of polypropylene waxes are put together, stir, process mixed solution;
B. be heated to 55 ℃, add 2 parts of crosslinking chemicals, kept two hours, used crosslinking chemical is a high molecular polymer;
C. setting an existing static magnetic field has the magnetic field environment of alternating magnetic field again; Let flow of solution through this specific magnetic fields environment; And kept 10 minutes; In this specific magnetic fields environment, use 10 times of washed with de-ionized water, filtration, drying simultaneously, the micelle grain that prevents to resonate after smashing bonds together the big bulk particle of formation again, thereby processes granular material;
D. to the granular material sizing screening, remove particle diameter greater than 10 microns, less than 4 microns particles;
E. putting in the mixer, and add 3 parts of hexamethyl dichlorosilanes and 3 parts of dimethyldichlorosilanes,, process green carbon dust through evenly mixing through garbled granular material.
Because intermolecular acting force, each molecule in the mixed liquor is not that the form with individual molecule exists in the liquid, but that many molecules are embraced is agglomerating.This has just caused and has had the bigger bulk body of a large amount of volumes in the mixed liquor after polyreaction, and this bulk body particle diameter is all greater than 10 microns.
The base unit of material is an atom, says atomic model in the chemistry, and promptly electronics is around the atomic nucleus rotation.The electronics of these rotations has formed ring current, and ring current has just produced magnetic field.Say that from this angle any material all is magnetic, only because its internal electron direction of motion is chaotic, and each magnetic field intensity is cancelled each other, so externally do not show magnetic (except the magnet).When a magnet near will be magnetized object the time; Electronics in the object that is magnetized is received the magnetic field that magnet produces Lorentz force effect and do the motion of rule; Produce magnetic moment; No longer cancelling each other so externally show magnetic in the electric current formed magnetic field that the electronics of these regular motion forms, promptly is magnetized, and magnetic moment makes molecule, atom in the fluid, arranges again with electronics.Because the liquid electronic energy keeps higher spin states, this phenomenon is referred to as the magnetic fluid memory effect.
But have again in the environment of alternating magnetic field at existing static magnetic field; Bulk body in the mixed liquor receives the effect of static magnetic field and arranges again and tightened; Simultaneously alternating magnetic field does not stop to carry out the variation of position or magnetic field intensity, when change frequency reaches the resonant frequency of the big bulk body (particle diameter is greater than 10 microns) of volume, when not reaching the resonant frequency of other bulk body again simultaneously; The big bulk body (particle diameter is greater than 10 microns) of volume will be smashed littler particle by resonance; Thereby make more bulk body size fall into 4～10 microns these intervals, improve the extraction ratio of carbon dust, reduce the generation of useless powder.
Colorant
Colorant does not limit especially, and can from known dyestuff and pigment, suitably select based on purpose.Its example comprises naphthol yellow S; Hansa yellow (10G; 5G; G); Cadmium yellow; Yellow iron oxide; Yellow ocher; Chrome yellow; Titan yellow; Polyazo yellow (Polyazo Yellow); Oil yellow; Hansa yellow (GR; A; RN; R); Pigment yellow L; Benzidine yellow (G; GR); Permanent yellow (NCG); Sulfuration fast yellow (VULCAN FAST YELLOW1 (5G; R); Tartrazine lake; Quinoline yellow lake; Fear the yellow BGL of alkene; Isoindolinone is yellow; Colcother; Lead oxide red; Red lead; Cadmium red; Cadmium mercury is red; Antimony red; Permanent red 4R; Para red; Red as fire; P-chloro-o-nitroaniline red; Lithol fast scarlet G (Lithol Fast Scarlet G); Bright fast scarlet (Brilliant Fast Scarlet); Bright fuchsin BS (Brilliant Carmine BS); Permanent bordeaux (F2R; F4R; FRL; FRLL and F4RH); Fast scarlet VD; Vulcanize strong ruby red B; Brilliant scarlet G G; The ruby red GX of lithol; Permanent bordeaux F5R; Bright fuchsin 6B; Pigment scarlet 3B; Purplish red 5B; Everbright fast maroon; Solid forever purplish red F2K; Daylight bordeaux B L; Purplish red 10B; BON lavender blush (BON MAROON LIGHT); BON moderate purplish red (BONMAROON MEDIUM); Eosine lake; Rhodamine color lake B; Rhodamine color lake Y; Alizarine lake; Thioindigo red B; Thioindigoid maroons; Oil red; Quinacridone is red; Pyrazolone red; Polyazo is red; Chrome vermilion; Benzidine orange perylene orange (perynone orange); The oil orange; Cobalt blue; Cerulean blue; Alkali blue lake; Peacock blue lake; The Victoria blue color lake; Metal-free phthalocyanine blue; Phthalocyanine blue; Fast sky blue; Indanthrene blue (RS and BC); Indigo; Ultramarine; Prussian blue; Fear quinone indigo plant; Fast violet B; The methyl violet color lake; Cobalt violet; Manganese violet dioxazine violet; Anthraquinone is purple; Chrome green; Zinc green; Chromium oxide; Bright green (viridian); Emerald green; Pigment green B; Naphthol green B; Green gold look (Green Gold); The acid green color lake; The peacock green color lake; Phthalocyanine green; Anthraquinone green; Titania; Zinc white; Lithopone and combination thereof.These can be used alone or in combination.
The example of fuchsin colorant comprises C.I. paratonere 2; 3; 4; 5; 6; 7; 8; 9; 10; 11; 12; 13; 14; 15; 16; 17; 18; 19; 21; 22; 23; 30; 31; 32; 37; 38; 39; 40; 41; 48; 48:1; 49; 50; 51; 52; 53; 51:1; 54; 55; 57; 57:1; 58; 60; 63; 64; 68; 81; 83; 87; 88; 89; 90; 112; 114; 122; 123; 163; 177; 179; 202; 206; 207; 209; 211:C.I. pigment violet 19; C.I. urn red 1,2,10,13,15,23,29,35.
The example of cyan coloring pigment comprises C.I. alizarol saphirol 2,3,15,15:1,15:2,15:3,15:4,15:6,16,17,60; C.I. vat blue 6; C.I. acid blue 45, have copper phthalocyanine, green 7 and green 36 with the methyl substituted phthalocyanine frame of 1-5 phthalimide.
The example of yellow coloring pigment comprises C.I. pigment yellow 0-16,1,2,3,4,5,6,7,10,11,12,13,14,15,16,17,23,55,65,73,74,83,97,110,151,154,180; C.I. vat yellow 1,3,20 and the orange 36.
The content of colorant is unrestricted in the carbon dust, and can suitably select based on purposes.Preferably accounting for 1% to 15% qualitatively, and more preferably accounting for 3% to 10% qualitatively.When content qualitatively less than 1% the time, the colouring power of carbon dust may reduce.When content qualitatively greater than 15% the time, pigment can not scatter in carbon dust, colouring power may reduce, and the electrical characteristics of carbon dust may reduce.
Colorant also can be used as masterbatch (master batch) with resin combination.Resin is unrestricted and can from known resin, select based on purposes.Its example comprises the polymkeric substance of styrene and its substitution product; Styrol copolymer; Plexiglass; Polybutyl methacrylate resin; Corvic; Vinylite; Polyvinyl resin; Acrylic resin; Polyester resin; Epoxy resin; Epoxy polyol resin (epoxy polyol resin); Urethane resin; Polyamide; Polyvinyl butyral resin; Polyacrylic resin; Rosin; Modified rosin; Terpene resin; Aliphatic series or alicyclic hydrocarbon resin; Aromatic petroleum resin; Chlorinated paraffin and paraffin.These can be by separately or be used in combination.
The example of the polymkeric substance of styrene and substitution product comprises polyester resin, polystyrene resin, gathers (to chlorostyrene) resin and polymethylstyrene resin.The example of styrol copolymer comprises styrene-to chloro-styrene copolymer; The styrene-propene multipolymer; Styrene-ethylene base toluene multipolymer; Styrene-ethylene base naphthalenedicarboxylate copolymer; Styrene-propene acid methyl terpolymer; Styrene-propene acetoacetic ester multipolymer; The styrene-propene butyl acrylate copolymer; The misery ester copolymer of styrene-propene; Styrene-methylmethacrylate copolymer; Styrene-ethyl methacrylate copolymers; Styrene-butyl methacrylate copolymer; Styrene-methacrylic acid α-chloromethyl ester multipolymer; Styrene-acrylonitrile copolymer; Styrene-ethylene ylmethyl ketone copolymers; SB; The styrene-isoprene multipolymer; And styrene-acrylonitrile-indene copolymer; Styrene-maleic acid copolymer; With the styrene-maleic acid ester copolymer.
Through under high shear mixing or mediating masterbatch, can prepare masterbatch with resin and colorant.In this step, for interaction higher between colorant and the resin, organic solvent is used by preferred.In addition, preferred adopt " water squeezing phase conversion method (flushing process) ", the aqueous slurry that wherein contains colorant and water is mixed with resin and organic solvent or is mediated, thereby said colorant is transferred to said resinous principle, then except that anhydrating and organic solvent.According to this method, the wet piece of colorant can directly be used without drying.High shear diverting device for example three-roll grinder can be optimized for mixing or mediate.
Charge control agent
Charge control agent is not limited particularly, and can select from the known charge controlling agent according to purpose.Said charge control agent is preferably formed by the material preparation that has near transparent and/or white color, because colored materials can change tone.Its example comprises the for example slaine of fluorine modified quaternary ammonium salt, alkylamide, phosphorus simple substance or its compound, tungsten simple substance or its compound, fluorine-containing activating agent, salicylic slaine and salicyclic acid derivatives of kiton colors, molybdic acid chelating pigment, rhodamine, alkoxyamine, quaternary ammonium salt.These can be by separately or be used in combination.
The example of charge control agent comprises and is purchased the product that can get: the quaternary ammonium salt of trade mark BontronP-51 by name, the oxynaphthoic acid metal complex of Bontron E-82, the salicylic acid metal complex of Bontron E-84, phenolic condensates (Orient Chemical Industries, Ltd.) the quaternary ammonium salt molybdenum complex of TP-302 and FP-415 (Hodogaya Chemical Co.): the quaternary ammonium salt (Hoechst Ltd.) of the quaternary ammonium salt of Copy Charge PSY VP2038, the triphenylmethane derivative of Copy Blue PR and Copy Charge NEG VP2036 and Copy Charge NXVP434 of Bontron E-89; The boron complexes of LRA-901 and LR-147 (Japan Carlit Co., Ltd.); Quinacridone, AZOpigments; Has the for example high-molecular weight compounds of sulfonic acid group, carboxylic group and quaternary ammonium salt of functional group with other.
With the masterbatch melt kneading after, said charge control agent can be dissolved and/or be dispersed in the carbon powder material.Said charge control agent directly is added into said carbon powder material when can also and/or be dispersed in the organic solvent in dissolving.In addition, said charge control agent can be added on the surface of said carbon powder particle after carbon powder particle is produced.
The existence of the adjuvant that uses according to the kind of adhesive resin, in view of the above whether and the method for producing carbon dust comprise process for dispersing, confirm the content of charge control agent in the carbon dust, and said content is not limited clearly.The content of charge control agent is based on the adhesive resin by 100 parts of quality, be preferably by 0.1 part of quality to by 10 parts of quality, and more preferably 0.2 part to by 5 parts of quality.When the content of charge control agent less than by 0.1 part of quality, electric charge maybe be by control suitably.When the content of charge control agent greater than by 10 parts of quality, the effect of charge control agent is weakened, and the electrostatic attraction of developing roller is increased, reason is the too much charging ability of carbon dust, this can cause the flowability of developer or image density to reduce.
The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (3)
1. the chemical synthesis process of a colored carbon powder is characterized in that may further comprise the steps:
A. emulsion polymerization macromolecule resin, colour colouring pigment, charge control agent, deionized water and wax are put together, stir, process mixed solution;
B. be heated to 45～70 ℃, add crosslinking chemical, kept two hours;
C. setting an existing static magnetic field has the magnetic field environment of alternating magnetic field again, lets flow of solution through this specific magnetic fields environment, and keeps 10～20 minutes, in this specific magnetic fields environment, uses 8～10 times of washed with de-ionized water, filtration, drying simultaneously, processes granular material;
D. to the granular material sizing screening, remove particle diameter greater than 10 microns, less than 4 microns particles;
E. putting in the mixer, and add external additive,, process colored carbon powder through evenly mixing through garbled granular material.
2. the chemical synthesis process of a kind of colored carbon powder according to claim 1 is characterized in that described adjuvant is one or more any mixing in silicon dioxide, hexamethyl dichlorosilane or the dimethyldichlorosilane.
3. the chemical synthesis process of a kind of colored carbon powder according to claim 1 is characterized in that used crosslinking chemical is a high molecular polymer.
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| US5962082A (en) * | 1997-08-19 | 1999-10-05 | Aveka, Inc. | Process for applying liquid coatings to solid particulate substrates |
| US6037019A (en) * | 1995-08-24 | 2000-03-14 | 3M Innovative Properties Company | Process for making particle-coated solid substrates |
| CN1305125A (en) * | 2001-01-05 | 2001-07-25 | 清华大学 | Process for preparing polymerized ink powder of laser printer |
| CN1694002A (en) * | 2004-05-07 | 2005-11-09 | 三星电子株式会社 | Negatively charged coated electrographic toner particles |
| CN101246349A (en) * | 2008-03-19 | 2008-08-20 | 湛江惠能墨业有限公司 | Wasted ink powder classification method and reclaiming utilization method after specification |
-
2010
- 2010-04-29 CN CN2010101648530A patent/CN101859077B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6037019A (en) * | 1995-08-24 | 2000-03-14 | 3M Innovative Properties Company | Process for making particle-coated solid substrates |
| US5962082A (en) * | 1997-08-19 | 1999-10-05 | Aveka, Inc. | Process for applying liquid coatings to solid particulate substrates |
| CN1305125A (en) * | 2001-01-05 | 2001-07-25 | 清华大学 | Process for preparing polymerized ink powder of laser printer |
| CN1694002A (en) * | 2004-05-07 | 2005-11-09 | 三星电子株式会社 | Negatively charged coated electrographic toner particles |
| CN101246349A (en) * | 2008-03-19 | 2008-08-20 | 湛江惠能墨业有限公司 | Wasted ink powder classification method and reclaiming utilization method after specification |
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