CN101650539A - Method for manufacturing inkpowder for printer by supercritical fluids (SCF) anti-solvent method - Google Patents
Method for manufacturing inkpowder for printer by supercritical fluids (SCF) anti-solvent method Download PDFInfo
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- CN101650539A CN101650539A CN200910016690A CN200910016690A CN101650539A CN 101650539 A CN101650539 A CN 101650539A CN 200910016690 A CN200910016690 A CN 200910016690A CN 200910016690 A CN200910016690 A CN 200910016690A CN 101650539 A CN101650539 A CN 101650539A
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Abstract
The invention relates to a method for manufacturing inkpowder for a printer by a supercritical fluids (SCF) anti-solvent method. In the invention, organic solvent xylene which is easily dissolved in supercritical carbon dioxide is used for dissolving high polymer resin, paint, charge control agent and magnetic components; the supercritical carbon dioxide is contacted and mixed with xylene suspension emulsion; the organic solvent xylene is diluted and the volume thereof is expanded due to absorption and dissolving of carbon dioxide by organic solvent xylene, thus reducing dissolving capacity ofsolvent to lead solute to be supersaturated and be precipitated to obtain inkpowder particles for a laser printer; and then silicon dioxide is used for coating the inkpowder particles. The inkpowdermanufactured by the method is 8-12 micron in size and has even particles, and the inkpowder particles needs no water washing and drying, thus simplifying production procedures and saving a large number of water resource.
Description
Technical field
The present invention relates to a kind of manufacture method of inkpowder for printer.
Background technology
The main method of suitability for industrialized production ink powder is a Mechanical Method at present.The technological process of Mechanical Method: mixing → high temperature such as resin, pigment melt refining → hammer mill → airslide disintegrating mill → classification → finished product.This preparation method's process complexity, energy consumption is big, cost is high, and the particle diameter of products obtained therefrom is bigger, and the pole of figure of size distribution broad, particle is irregular, the skewness of each component etc., has all influenced the printing effect of ink powder.
Another kind of method of producing ink powder is a polymerization, and polymerization is meant adjuvants such as raw material monomer, pigment are mixed together and joins in the reactor, adopts the method for polymerization directly to make the graininess finished product of ink powder.Because it is the polymerization of directly carrying out resin on the surface of granules of pigments, makes between pigment and the resin and may combine or particle can be embedded in the resin matrix and more firm with valence link power.Simultaneously, the size of toner particles and the control of profile are regulated by chemical reaction, just can obtain manufactured goods so need not pulverizing process.Because monomer is inflammable, explosive, poisonous, therefore in raw material transportation, storage, production run, all have certain danger when polymerization is produced, thereby the output investment ratio comminuting method is produced much bigger.Simultaneously, because a large amount of water of waste when cleaning, and these water contain objectionable impurities after using, and do not handle and can not discharge, thus polymerization when producing the investment of sewage disposal device also very huge.
Summary of the invention
The object of the present invention is to provide a kind of operation simple, safety, environmental protection, the method for the manufacturing ink powder of conserve water resource.
Ultimate principle of the present invention: using supercritical fluid CO2 anti-solvent method to produce in the printer ink powder process, dissolve macromolecule resin with the organic solvent dimethylbenzene that is soluble in supercritical carbon dioxide, pigment, charge control agent and magnetic component, when supercritical carbon dioxide fluid contacts mixing with the dimethylbenzene suspension emulsion, owing to organic solvent dimethylbenzene dissolves the absorption of carbon dioxide its volume dilution is expanded, reduce the dissolving power of solvent, make solute form supersaturation and precipitating obtains the printer ink powder particles.
Technological process of the present invention is: macromolecule resin is dissolved in the xylene solvent, adds pigment, CCA and magnetic component stirring according to the ink powder factory formula then it is dispersed in the high-molecular resin solution, form the macromolecule resin suspension emulsion.Then the pressure of CO2 is transferred to 10～20MPa, opens main pump CO2 is imported expanding chamber, treat the pressure in the expanding chamber, behind the flow speed stability of temperature and carbon dioxide, allow carbon dioxide flow again at least 10 minutes, to catch up with the air in the most expanding chamber; Temperature in the expanding chamber is 25～45 ℃, and the pressure of CO2 is 10～20MPa in the expanding chamber, and the CO2 flow velocity that main pump is pressed into expanding chamber is 500g/h; Then the suspension emulsion of macromolecule resin is spurted into expanding chamber by auxilliary pump spray-head, the concentration of macromolecule resin suspension emulsion is 1～10mg/ml, and flow velocity is 0.5～3.0ml/min; Solution contacts with supercritical carbon dioxide fluid in expanding chamber, xylene soluble is in supercritical carbon dioxide fluid, because components such as macromolecule resin and pigment are insoluble to supercritical carbon dioxide fluid, separate out the formation particle powder immediately and be deposited on the expanding chamber bottom.Dimethylbenzene separates by the step-down resolver with carbon dioxide gas mixture, in order to recycling.
The used organic solvent of this technological process can also be a dimethyl formamide.
Specific embodiment
1, with main pump supercritical fluid carbon dioxide is pressed into expanding chamber, the pressure of indoor carbon dioxide is 12MPa, and flow velocity is 500g/h, and the temperature of expanding chamber is 30 ℃;
2, with auxilliary pump 2mg/ml macromolecule resin xylene solution is pressed into expanding chamber, its flow velocity is 1ml/min;
3, carbon dioxide and macromolecule resin xylene solution mix and expansion at expanding chamber, separate out the printer ink powder particles.
The toner powder particle that adopts the inventive method to generate is rounded, oval, even particle size, and size is between 8～12 microns.Machining medium dimethylbenzene simultaneously, carbon dioxide can be recycling, is the environmental protection process of no emission in the whole process of production, have operation simply, the advantage of safety, environmental protection and conserve water resource.
Claims (5)
1, a kind of supercritical fluid anti-solvent technology is made the method for inkpowder for printer, it is characterized in that: adopt following technology: macromolecule resin is dissolved in the organic solvent, adds pigment, CCA, magnetic component then and stirred the suspension emulsion that forms macromolecule resin.
2, supercritical fluid anti-solvent technology according to claim 1 is made the method for inkpowder for printer, and it is characterized in that: the organic solvent of described dissolving macromolecule resin is a dimethylbenzene.
3, supercritical fluid anti-solvent technology according to claim 1 is made the method for inkpowder for printer, and it is characterized in that: the organic solvent of described dissolving macromolecule resin is a dimethyl formamide.
4, supercritical fluid anti-solvent technology according to claim 1 is made the method for ink powder, and it is characterized in that: the concentration of macromolecule resin suspension emulsion is 1～10mg/ml.
5, supercritical fluid anti-solvent technology according to claim 1 is made the method for ink powder, and it is characterized in that: stirring rate is: 1500r/min～2500r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910016690A CN101650539A (en) | 2009-07-03 | 2009-07-03 | Method for manufacturing inkpowder for printer by supercritical fluids (SCF) anti-solvent method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910016690A CN101650539A (en) | 2009-07-03 | 2009-07-03 | Method for manufacturing inkpowder for printer by supercritical fluids (SCF) anti-solvent method |
Publications (1)
| Publication Number | Publication Date |
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| CN101650539A true CN101650539A (en) | 2010-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN200910016690A Pending CN101650539A (en) | 2009-07-03 | 2009-07-03 | Method for manufacturing inkpowder for printer by supercritical fluids (SCF) anti-solvent method |
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| CN (1) | CN101650539A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016191910A (en) * | 2015-03-30 | 2016-11-10 | キヤノン株式会社 | Method of manufacturing toner, and method of manufacturing resin particle |
| CN115850996A (en) * | 2022-11-25 | 2023-03-28 | 江苏先科半导体新材料有限公司 | Preparation method and application of modified organic pigment nanocrystal for photoresist |
-
2009
- 2009-07-03 CN CN200910016690A patent/CN101650539A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016191910A (en) * | 2015-03-30 | 2016-11-10 | キヤノン株式会社 | Method of manufacturing toner, and method of manufacturing resin particle |
| CN115850996A (en) * | 2022-11-25 | 2023-03-28 | 江苏先科半导体新材料有限公司 | Preparation method and application of modified organic pigment nanocrystal for photoresist |
| CN115850996B (en) * | 2022-11-25 | 2024-03-19 | 江苏先科半导体新材料有限公司 | Preparation method and application of modified organic pigment nanocrystals for photoresist |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100217 |