CN112965350A - Toner composition and application thereof - Google Patents
Toner composition and application thereof Download PDFInfo
- Publication number
- CN112965350A CN112965350A CN202110230650.5A CN202110230650A CN112965350A CN 112965350 A CN112965350 A CN 112965350A CN 202110230650 A CN202110230650 A CN 202110230650A CN 112965350 A CN112965350 A CN 112965350A
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- Prior art keywords
- resin
- particle size
- toner composition
- additive
- mass fraction
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000203 mixture Substances 0.000 title claims abstract description 44
- 229920005989 resin Polymers 0.000 claims abstract description 68
- 239000011347 resin Substances 0.000 claims abstract description 68
- 239000002245 particle Substances 0.000 claims abstract description 65
- 239000000654 additive Substances 0.000 claims abstract description 47
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 46
- 230000000996 additive effect Effects 0.000 claims abstract description 45
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229910021485 fumed silica Inorganic materials 0.000 claims abstract description 26
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 23
- KELHQGOVULCJSG-UHFFFAOYSA-N n,n-dimethyl-1-(5-methylfuran-2-yl)ethane-1,2-diamine Chemical compound CN(C)C(CN)C1=CC=C(C)O1 KELHQGOVULCJSG-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003086 colorant Substances 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 32
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical group CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 11
- 239000000377 silicon dioxide Substances 0.000 abstract description 9
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 9
- 238000003745 diagnosis Methods 0.000 abstract description 5
- 238000003384 imaging method Methods 0.000 abstract description 4
- 239000001993 wax Substances 0.000 description 25
- 230000000052 comparative effect Effects 0.000 description 16
- -1 polypropylene Polymers 0.000 description 4
- 239000002390 adhesive tape Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010954 inorganic particle Substances 0.000 description 3
- 239000002105 nanoparticle Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004203 carnauba wax Substances 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 239000004811 fluoropolymer Substances 0.000 description 2
- 229920002313 fluoropolymer Polymers 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000006082 mold release agent Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920005668 polycarbonate resin Polymers 0.000 description 2
- 239000004431 polycarbonate resin Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical class OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 2
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
-
- 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
- G03G9/0821—Developers with toner particles characterised by physical parameters
-
- 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
- G03G9/0819—Developers with toner particles characterised by the dimensions of the particles
-
- 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
- G03G9/097—Plasticisers; Charge controlling agents
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
The invention discloses a toner composition, which comprises a colorant and an additive, wherein the additive comprises resin and wax, and is characterized in that the additive also comprises the following components in percentage by mass: 1.0-10.0% fumed silica a; 1.0-9.0% fumed silica B; 1.0-11.0% titanium dioxide A; 0.1-3% titanium dioxide B; 1.0-11.5% titanium monoxide; the particle size of the fumed silica A is 5-20nm, the particle size of the fumed silica B is 30-150nm, the particle size of the titanium dioxide A is 20-50nm, and the particle size of the titanium dioxide B is 50-200nm, so that the toner composition provided by the invention improves the imaging quality of printing by matching silicon dioxide, titanium dioxide and titanium monoxide with different particle sizes; the toner composition provided by the invention can be matched with a common printer to print a scanned image meeting the diagnosis requirement, so that the economic burden of hospitals and patients can be reduced.
Description
Technical Field
The invention relates to the field of medical printing, in particular to a toner composition and application thereof.
Background
When a hospital performs a scanning diagnosis, a doctor needs to diagnose a disease according to a scanning film, and therefore, a scanning department needs to print the scanning film, but such an operation increases the time of a patient's visit, which affects the efficiency of the visit, and therefore, in order to increase the efficiency of the visit and shorten the time of the patient's visit, the hospital sets a printer dedicated to printing the medical film, including both a laser printer and an ink-jet printer, but such a printer dedicated to printing the medical film is expensive, and purchasing more dedicated printers to better increase the efficiency of the visit imposes an economic burden on the hospital, and the existing medical film is expensive, which increases the economic burden on the patient.
On the other hand, due to the limitation of the existing toner compositions, the medical films printed by the common printers have insufficient imaging quality and cannot meet the requirements of diagnosis.
Therefore, it is necessary to provide a toner composition with high image quality, which is further applied to print a scanned image for medical diagnosis, and the printed scanned image meets the diagnostic requirements, thereby reducing the economic burden on hospitals and patients.
Disclosure of Invention
The main object of the present invention is to provide a toner composition which solves the drawbacks of the background art.
In order to achieve the above purpose, the present invention provides a toner composition, which comprises a colorant and an additive, wherein the additive comprises a resin and a wax, and is characterized in that the additive further comprises the following components in percentage by mass:
the particle size of the fumed silica A is 5-20nm, the particle size of the fumed silica B is 30-150nm, the particle size of the titanium dioxide A is 20-50nm, and the particle size of the titanium dioxide B is 50-200 nm.
Preferably, the particle size of the titanium monoxide is 5-300 nm.
Preferably, the mass fraction of the resin is 80-90.5%.
Preferably, the resin consists of the following components in percentage by mass:
10.0 to 18.0 percent of HG-82 resin;
HG-18 resin 64.0-70.0%;
4.0 to 12.0 percent of HG-05 resin.
Preferably, the additive also comprises 1-11% by mass of charge regulators, including but not limited to charge regulators of the quaternary ammonium series, azo series and salicylic acid series.
Preferably, the mass fraction of the wax is 2-12.6%, and the wax includes but is not limited to one or a combination of three of polypropylene wax, polyethylene wax and palm wax.
Preferably, the additive also comprises a release agent with the mass fraction of 0.4-11%.
Preferably, the release agent is a stearate-based release agent including, but not limited to, one or a combination of two of sodium stearate and zinc stearate.
The invention also discloses application of the toner composition, and the toner composition contains the components in the toner composition.
The HG-82 resin is represented by a polycarbonate resin, the HG-18 resin is represented by a cross-linked fluoropolymer, and the HG-05 resin is represented by a hot-melt fluororesin.
The colorant comprises one or a combination of several of dyes and pigments.
Compared with the prior art, the invention has the beneficial effects that:
(1) the toner composition provided by the invention improves the imaging quality of printing by matching silicon dioxide, titanium dioxide and titanium monoxide with different particle sizes;
(2) the toner composition provided by the invention can be matched with a common printer to print a scanned image meeting the diagnosis requirement, so that the economic burden of hospitals and patients can be reduced.
Detailed Description
The present invention is further illustrated by the following specific examples, but it should be noted that the specific material ratios, process conditions, results, etc. described in the examples of the present invention are only for illustrating the present invention and are not to be construed as limiting the scope of the present invention, and all equivalent changes and modifications according to the spirit of the present invention should be covered by the scope of the present invention.
Example 1:
a toner composition comprising a colorant and an additive, the additive comprising a resin and a wax, characterized in that the additive further comprises the following components in mass fraction:
the particle size of the fumed silica A is 15-20nm, the particle size of the fumed silica B is 35-40nm, the particle size of the titanium dioxide A is 20-30nm, the particle size of the silicon dioxide B is 50-60nm, and the particle size of the titanium monoxide is 30-40 nm; the mass fraction of the wax is 5.0%; the additive also comprises a charge regulator with the mass fraction of 2 percent and a release agent with the mass fraction of 0.8 percent, wherein the release agent is a stearate release agent; the mass fraction of the resin is 86.0%, and the resin consists of the following components in mass fraction:
12.0% of HG-82 resin;
68.0% of HG-18 resin;
6.0 percent of HG-05 resin.
Comparative example 1 (see example 1, influence of inorganic particles):
a toner composition comprising a colorant and an additive, the additive comprising a resin and a wax, characterized in that the additive further comprises the following components in mass fraction:
fumed silica a 2.5%;
2.1 percent of titanium dioxide A;
1.6 percent of titanium monoxide;
the particle size of the fumed silica A is 15-20nm, the particle size of the titanium dioxide A is 20-30nm, and the particle size of the titanium monoxide is 30-40 nm; the mass fraction of the wax is 5.0%; the additive also comprises a charge regulator with the mass fraction of 2 percent and a release agent with the mass fraction of 0.8 percent, wherein the release agent is a stearate release agent; the mass fraction of the resin is 86.0%, and the resin consists of the following components in mass fraction:
12.0% of HG-82 resin;
68.0% of HG-18 resin;
6.0 percent of HG-05 resin.
Comparative example 2 (see example 1, influence of inorganic particles):
a toner composition comprising a colorant and an additive, the additive comprising a resin and a wax, characterized in that the additive further comprises the following components in mass fraction:
fumed silica B2.5%;
2.1 percent of titanium dioxide B;
1.6 percent of titanium monoxide;
the particle size of the fumed silica B is 35-40nm, the particle size of the titanium dioxide B is 50-60nm, and the particle size of the titanium monoxide is 30-40 nm; the mass fraction of the wax is 5.0%; the additive also comprises a charge regulator with the mass fraction of 2 percent and a release agent with the mass fraction of 0.8 percent, wherein the release agent is a stearate release agent; the mass fraction of the resin is 86.0%, and the resin consists of the following components in mass fraction:
12.0% of HG-82 resin;
68.0% of HG-18 resin;
6.0 percent of HG-05 resin.
Comparative example 3 (see example 1 for the effect of titanium monoxide particle size):
a toner composition comprising a colorant and an additive, the additive comprising a resin and a wax, characterized in that the additive further comprises the following components in mass fraction:
the particle size of the fumed silica A is 15-20nm, the particle size of the fumed silica B is 35-40nm, the particle size of the titanium dioxide A is 20-30nm, the particle size of the silicon dioxide B is 50-60nm, and the particle size of the titanium monoxide is 300-350 nm; the mass fraction of the wax is 5.0%; the additive also comprises a charge regulator with the mass fraction of 2 percent and a release agent with the mass fraction of 0.8 percent, wherein the release agent is a stearate release agent; the mass fraction of the resin is 86.0%, and the resin consists of the following components in mass fraction:
12.0% of HG-82 resin;
68.0% of HG-18 resin;
6.0 percent of HG-05 resin.
Example 2:
a toner composition comprising a colorant and an additive, the additive comprising a resin and a wax, characterized in that the additive further comprises the following components in mass fraction:
the particle size of the fumed silica A is 5-10nm, the particle size of the fumed silica B is 145-150nm, the particle size of the titanium dioxide A is 40-50nm, the particle size of the silicon dioxide B is 50-60nm, and the particle size of the titanium monoxide is 23-30 nm; the mass fraction of the wax is 3.5%; the additive also comprises a charge regulator with the mass fraction of 3 percent and a release agent with the mass fraction of 0.5 percent, wherein the release agent is a stearate release agent; the mass fraction of the resin is 80.0%, and the resin comprises the following components in mass fraction:
10.0 percent of HG-82 resin;
HG-18 resin 64.0%;
6.0 percent of HG-05 resin.
Comparative example 4 (see example 2, influence of resin):
a toner composition comprising a colorant and an additive, the additive comprising a resin and a wax, characterized in that the additive further comprises the following components in mass fraction:
the particle size of the fumed silica A is 5-10nm, the particle size of the fumed silica B is 145-150nm, the particle size of the titanium dioxide A is 40-50nm, the particle size of the silicon dioxide B is 50-60nm, and the particle size of the titanium monoxide is 23-30 nm; the mass fraction of the wax is 3.5%; the additive also comprises a charge regulator with the mass fraction of 3.0 percent and a release agent with the mass fraction of 0.5 percent, wherein the release agent is a stearate release agent; the resin is HG-82 resin, and the mass fraction of the HG-82 resin is 80.0%.
Comparative example 5 (see example 2 for resin effect):
a toner composition comprising a colorant and an additive, the additive comprising a resin and a wax, characterized in that the additive further comprises the following components in mass fraction:
the particle size of the fumed silica A is 5-10nm, the particle size of the fumed silica B is 145-150nm, the particle size of the titanium dioxide A is 40-50nm, the particle size of the silicon dioxide B is 50-60nm, and the particle size of the titanium monoxide is 23-30 nm; the mass fraction of the wax is 3.5%; the additive also comprises a charge regulator with the mass fraction of 3.0 percent and a release agent with the mass fraction of 0.5 percent, wherein the release agent is a stearate release agent; the resin is HG-18 resin, and the mass fraction of the HG-18 resin is 80.0%.
Comparative example 6 (see example 2, influence of resin):
a toner composition comprising a colorant and an additive, the additive comprising a resin and a wax, characterized in that the additive further comprises the following components in mass fraction:
the particle size of the fumed silica A is 5-10nm, the particle size of the fumed silica B is 145-150nm, the particle size of the titanium dioxide A is 40-50nm, the particle size of the silicon dioxide B is 50-60nm, and the particle size of the titanium monoxide is 23-30 nm; the mass fraction of the wax is 3.5%; the additive also comprises a charge regulator with the mass fraction of 3.0 percent and a release agent with the mass fraction of 0.5 percent, wherein the release agent is a stearate release agent; the resin is HG-05 resin, and the mass fraction of the HG-05 resin is 80.0%.
The above examples and comparative examples were tested for performance by the following method:
(1) spatial resolution: direct visual inspection;
(2) degree of fixation: using a specific adhesive tape to remove the adhesive tape to print the pattern, and then removing the adhesive tape to detect the change of the blackness of the pattern;
(3) gray scale: MATLAB software;
(4) average particle diameter D50: laser particle analyzer.
And (3) testing results:
from example 1 and comparative examples 1 and 2, it can be seen that, although the same titanium monoxide, titanium dioxide, fumed silica, resin, mold release agent, wax and charge control agent are used, since example 1 uses fumed silica and titanium dioxide of two different particle sizes and titanium monoxide as inorganic nanoparticle additives, it has better image forming effect and better fixing degree compared with comparative examples 1 and 2, and example 1 and comparative example 3 only have different particle sizes of titanium monoxide, it can be seen from the test results that further limitation of the particle size of titanium monoxide is beneficial to further improve the image forming quality of the toner composition, increase the gray scale, improve the resolution and reduce the average particle size, and from the comparison results of example 2 and comparative examples 4-6, the resin composition also affects the image forming quality of the toner composition, the ink powder composition has the advantages that the resolution, the degree of fixation and the average particle size are influenced, the influence on the degree of fixation and the resolution is obvious, the performance of the ink powder composition can be obviously improved by matching the proper resin and the inorganic nano particles, and the preservation of a printing film printed by using the ink powder composition is convenient.
The matching use of titanium dioxide and silicon dioxide with different particle diameters and titanium monoxide is beneficial to the spheroidization of the toner composition and the improvement of the physical property of the toner composition, and meanwhile, the implosion caused by using inorganic nanoparticles with single particle diameter can be avoided, so that the shape and the particle diameter of the particles of the toner composition are influenced, the mixing of mixed resin is further convenient for the uniform dispersion of the inorganic particles, the difference among the particles of the toner composition is reduced, the imaging quality is favorably improved, meanwhile, the glass transition temperature and the hot melting temperature of the toner composition can be adjusted by the matching use of the resin, and the degree of fixation of the toner composition is improved.
The charge control agents described in the above examples and comparative examples include, but are not limited to, those of quaternary ammonium salt series, azo series, and salicylic acid series.
The waxes described in the above examples and comparative examples include, but are not limited to, one or a combination of three of polypropylene wax, polyethylene wax, and palm wax.
The stearate-based mold release agents in the above examples and comparative examples include, but are not limited to, one or a combination of two of sodium stearate and zinc stearate.
The colorant in the above examples and comparative examples comprises one or a combination of several of dyes and pigments, such as carbon black, and the amount of the colorant can be used with additives according to actual requirements.
The HG-82 resin in the above examples and comparative examples represents a polycarbonate resin, the HG-18 resin represents a crosslinked fluoropolymer, and the HG-05 resin represents a hot-melt fluororesin.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the present specification and directly/indirectly applied to other related technical fields within the spirit of the present invention are included in the scope of the present invention.
Claims (9)
1. A toner composition comprising a colorant and an additive, the additive comprising a resin and a wax, characterized in that the additive further comprises the following components in mass fraction:
the particle size of the fumed silica A is 5-20nm, the particle size of the fumed silica B is 30-150nm, the particle size of the titanium dioxide A is 20-50nm, and the particle size of the titanium dioxide B is 50-200 nm.
2. The toner composition of claim 1 wherein the titanium monoxide has a particle size of from 5 to 300 nm.
3. The toner composition according to claim 1, wherein the mass fraction of the resin is 80 to 90.5%.
4. The toner composition as claimed in claim 1, wherein the resin is composed of the following components in mass fraction:
10.0 to 18.0 percent of HG-82 resin;
HG-18 resin 64.0-70.0%;
4.0 to 12.0 percent of HG-05 resin.
5. The toner composition as claimed in claim 1, wherein the additive further comprises a charge regulator in a mass fraction of 1 to 11%.
6. The toner composition as claimed in claim 1, wherein the wax is present in an amount of 2 to 12.6% by weight.
7. The toner composition as claimed in claim 1, wherein the additive further comprises a release agent in an amount of 0.4 to 11% by mass.
8. The toner composition of claim 7 wherein the release agent is a stearate-based release agent.
9. Use of a toner composition, characterized in that the toner composition comprises the components of any of the preceding claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110230650.5A CN112965350A (en) | 2021-03-02 | 2021-03-02 | Toner composition and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110230650.5A CN112965350A (en) | 2021-03-02 | 2021-03-02 | Toner composition and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112965350A true CN112965350A (en) | 2021-06-15 |
Family
ID=76277533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110230650.5A Pending CN112965350A (en) | 2021-03-02 | 2021-03-02 | Toner composition and application thereof |
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| Country | Link |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60207150A (en) * | 1984-03-30 | 1985-10-18 | Mita Ind Co Ltd | Toner for binary type developer |
| US6338929B1 (en) * | 1999-09-29 | 2002-01-15 | Minolta Co., Ltd. | Toner for developing an electrostatic latent image |
| US20060003244A1 (en) * | 2004-06-30 | 2006-01-05 | Xerox Corporation | Magnetic toner and conductive developer compositions |
| CN1770023A (en) * | 2004-11-04 | 2006-05-10 | 施乐公司 | Toner compositions with surface additives |
| US20060121381A1 (en) * | 2004-12-03 | 2006-06-08 | Xerox Corporation | Toner compositions |
| CN1892451A (en) * | 2005-07-08 | 2007-01-10 | 施乐公司 | Toner and developer compositions |
| US20170212438A1 (en) * | 2016-01-21 | 2017-07-27 | Lexmark International, Inc. | Toner formulations having improved toner usage efficiency |
-
2021
- 2021-03-02 CN CN202110230650.5A patent/CN112965350A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60207150A (en) * | 1984-03-30 | 1985-10-18 | Mita Ind Co Ltd | Toner for binary type developer |
| US6338929B1 (en) * | 1999-09-29 | 2002-01-15 | Minolta Co., Ltd. | Toner for developing an electrostatic latent image |
| US20060003244A1 (en) * | 2004-06-30 | 2006-01-05 | Xerox Corporation | Magnetic toner and conductive developer compositions |
| CN1770023A (en) * | 2004-11-04 | 2006-05-10 | 施乐公司 | Toner compositions with surface additives |
| US20060121381A1 (en) * | 2004-12-03 | 2006-06-08 | Xerox Corporation | Toner compositions |
| CN1892451A (en) * | 2005-07-08 | 2007-01-10 | 施乐公司 | Toner and developer compositions |
| US20170212438A1 (en) * | 2016-01-21 | 2017-07-27 | Lexmark International, Inc. | Toner formulations having improved toner usage efficiency |
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