CN112083635A - Color ink powder suitable for low-temperature fixing and preparation method thereof - Google Patents
Color ink powder suitable for low-temperature fixing and preparation method thereof Download PDFInfo
- Publication number
- CN112083635A CN112083635A CN202010902670.8A CN202010902670A CN112083635A CN 112083635 A CN112083635 A CN 112083635A CN 202010902670 A CN202010902670 A CN 202010902670A CN 112083635 A CN112083635 A CN 112083635A
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- low
- unsaturated polyester
- color toner
- temperature
- polyester adhesive
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/0802—Preparation methods
- G03G9/081—Preparation methods by mixing the toner components in a liquefied state; melt kneading; reactive mixing
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/0802—Preparation methods
- G03G9/0815—Post-treatment
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/087—Binders for toner particles
- G03G9/08742—Binders for toner particles comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- G03G9/08755—Polyesters
Abstract
The invention relates to the field of toner for printing/copying machines, and particularly discloses a color toner suitable for low-temperature fixing and a preparation method thereof, wherein the color toner comprises a binder, a pigment, a salicylic acid complex, an internal additive and an external additive, the binder comprises an unsaturated polyester adhesive A and an unsaturated polyester adhesive B, the internal additive comprises polyethylene wax and polypropylene wax, and the preparation method of the color toner comprises the following steps: mixing the adhesive, the pigment, the salicylic acid complex and the internal additive on a high-speed mixer in proportion; extruding the materials by a double-screw extruder at the temperature of 135-140 ℃ and tabletting; the invention solves the problems of poor fixation effect, low resolution ratio and incapability of meeting normal office requirements due to the mismatching of partial carbon powder on a low-temperature fixation printer and a copier.
Description
Technical Field
The invention relates to the technical field of printer/copier toners, in particular to a color toner suitable for low-temperature fixing and a preparation method thereof.
Background
With the development of office automation, laser printers and digital copiers are increasingly applied to the office of people. At present, because the environmental problem is more and more serious, the call for energy conservation and emission reduction is paid attention by many people, the response also goes deep into various aspects of life, and the field of printing and copying is certainly no exception. The printing and copying machine of the older type causes more energy consumption due to overhigh fixing temperature, and after the concept of energy conservation and emission reduction is introduced into the field of printing and copying, people need to reduce the fixing temperature of the printing and copying machine, so that the energy consumption is reduced. With the reduction of the fixing temperature of the printing and copying machine, the traditional toner has not met some requirements of low-temperature fixing, so that the low-temperature fixing toner capable of meeting the requirements of low-temperature fixing is paid more and more attention. The prior common carbon powder can not meet the normal working requirements of people, and the follow is the great demand of people for the toner of low-temperature printers and copiers, so that the color toner suitable for low-temperature fixation and the preparation method thereof are produced.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a color toner suitable for low-temperature fixation and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a color toner suitable for low temperature fixing, comprising a binder, a pigment, a salicylic acid complex, an internal additive and an external additive, wherein the binder comprises an unsaturated polyester adhesive A and an unsaturated polyester adhesive B, the internal additive comprises polyethylene wax and polypropylene wax, and the ratio of the unsaturated polyester adhesive A: 80-85%, and the unsaturated polyester adhesive B: 5 to 10%, the pigment: 4.0-5.0%, the salicylic acid complex: 2.0-3.0%, and the polyethylene wax: 1.0-2.0%, the polypropylene wax: 1.0-2.0%, the external additive: 0.7 to 1.0 percent.
Preferably, the unsaturated polyester adhesive is ATg55 ℃ and the unsaturated polyester adhesive is BTg60 ℃.
Preferably, the internal additive is low molecular polypropylene wax or low molecular polyethylene wax.
Preferably, the softening point of the low molecular polypropylene wax is 140 ℃, and the softening point of the low molecular polyethylene wax is 110 ℃.
Preferably, the external additive is at least one of hydrophobic silica, alumina, zinc stearate, titanium dioxide, or strontium titanate.
The invention also provides a preparation method of the color toner suitable for low-temperature fixation, which comprises the following steps:
(1) mixing the adhesive, the pigment, the salicylic acid complex and the internal additive on a high-speed mixer in proportion;
(2) extruding the materials by a double-screw extruder at the temperature of 135-140 ℃ and tabletting;
(3) the materials are coarsely crushed, finely crushed and classified to obtain classified products.
Preferably, the graded product and the external additive are fully mixed in a high-speed mixer to obtain the finished colored toner.
Preferably, the adhesive comprises an unsaturated polyester adhesive A and an unsaturated polyester adhesive B, the internal additive comprises polyethylene wax and polypropylene wax, and the ratio of the unsaturated polyester adhesive A: 80-85%, and the unsaturated polyester adhesive B: 5-10%, the pigment: 4.0-5.0%, the salicylic acid complex: 2.0-3.0%, and the polyethylene wax: 1.0 to 2.0%, the polypropylene wax: 1.0-2.0%, the external additive: 0.7 to 1.0 percent.
The invention has the beneficial effects that:
the invention aims to solve the problems that the fixation firmness of partial carbon powder on a low-temperature printer and a copying machine is poor, double images occur, the resolution ratio is low, and the method cannot be suitable for normal office requirements. Meanwhile, a preparation method of the color toner suitable for low-temperature fixation is provided. Mixing the adhesive, the pigment, the salicylic acid complex and the internal additive in a certain proportion on a high-speed mixer, extruding by a double-screw extruder at the temperature of 135-140 ℃, tabletting, coarsely crushing, finely crushing and grading to obtain a graded product. And fully mixing the graded product and the external additive in a high-speed mixer to obtain the finished product of the colored ink powder.
Compared with the prior art, the invention has the advantages that: through the selection and the ratio of improving unsaturated polyester adhesive, the selection and the ratio of low molecular polyethylene wax, low molecular polypropylene wax, the colored powdered ink of preparation can be fine be applicable to low temperature fixation printer and duplicator, and its effect shows that the photographic fixing degree is firm, and the characters are clear, and the picture is bright and beautiful, has solved the mismatching of present part carbon dust on low temperature fixation printer and duplicator, and it is poor to appear the photographic fixing effect, and the resolution ratio is low, can not be applicable to normal office demand.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the following description. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
A color toner suitable for low temperature fixing, comprising a binder, a pigment, a salicylic acid complex, an internal additive and an external additive, wherein the binder comprises an unsaturated polyester adhesive A and an unsaturated polyester adhesive B, the internal additive comprises polyethylene wax and polypropylene wax, and the ratio of the unsaturated polyester adhesive A: 80-85%, and the unsaturated polyester adhesive B: 5 to 10%, the pigment: 4.0-5.0%, the salicylic acid complex: 2.0-3.0%, and the polyethylene wax: 1.0-2.0%, the polypropylene wax: 1.0-2.0%, the external additive: 0.7 to 1.0 percent.
Preferably, the unsaturated polyester adhesive is ATg55 ℃ and the unsaturated polyester adhesive is BTg60 ℃.
Preferably, the internal additive is low molecular polypropylene wax or low molecular polyethylene wax.
Preferably, the softening point of the low molecular polypropylene wax is 140 ℃, and the softening point of the low molecular polyethylene wax is 110 ℃.
Preferably, the external additive is at least one of hydrophobic silica, alumina, zinc stearate, titanium dioxide, or strontium titanate.
A preparation method of color toner suitable for low-temperature fixation is characterized by comprising the following steps:
(1) mixing the adhesive, the pigment, the salicylic acid complex and the internal additive on a high-speed mixer in proportion;
(2) extruding the materials by a double-screw extruder at the temperature of 135-140 ℃ and tabletting;
(3) the materials are coarsely crushed, finely crushed and classified to obtain classified products.
Preferably, the graded product and the external additive are fully mixed in a high-speed mixer to obtain the finished colored toner.
The first embodiment is as follows:
a color ink powder suitable for low-temperature fixation is characterized by comprising a binder, a pigment, a salicylic acid complex, an internal additive and an external additive, wherein the binder is two unsaturated polyester adhesives, the internal additive is polyethylene wax and polypropylene wax respectively, and the specific gravity of the materials is as follows:
unsaturated polyester adhesive A: 80%, unsaturated polyester adhesive B: 10%, red pigment: 5%, salicylic acid complex: 2.5%, low molecular polypropylene wax: 1%, low molecular polyethylene wax: 1.5%, external additive: 0.7 percent.
Placing an unsaturated polyester adhesive A, an unsaturated polyester adhesive B, a red pigment, a salicylic acid complex, low-molecular polypropylene wax and low-molecular polyethylene wax into a professional high-speed mixer with good airtightness to mix so as to uniformly disperse all the substances, then extruding the mixture by a double-screw extruder with the constant temperature of 140 ℃, tabletting, coarsely crushing, finely crushing, and grading to obtain a graded product, wherein the grain size of the graded product is 6-7 mu m. And finally, putting the graded product and the external additive into a high-speed mixer to mix for a certain time to obtain the finished product of the red ink powder.
Example two:
a color ink powder suitable for low-temperature fixation is characterized by comprising a binder, a pigment, a salicylic acid complex, an internal additive and an external additive, wherein the binder is two unsaturated polyester adhesives, the internal additive is polyethylene wax and polypropylene wax respectively, and the specific gravity of the materials is as follows:
unsaturated polyester adhesive A: 86%, unsaturated polyester adhesive B: 5%, yellow pigment: 4.5%, salicylic acid complex: 2%, low molecular polypropylene wax: 1%, low molecular polyethylene wax: 1.5%, external additive: 0.8 percent.
Placing an unsaturated polyester adhesive A, an unsaturated polyester adhesive B, yellow pigment, a salicylic acid complex, low-molecular polypropylene wax and low-molecular polyethylene wax into a professional high-speed mixer with good airtightness to uniformly disperse the substances, then extruding the mixture by a double-screw extruder with constant temperature of 135 ℃, tabletting, coarsely crushing, finely crushing, and grading to obtain a graded product, wherein the grain size of the graded product is 6-7 mu m. And finally, putting the graded product and the external additive into a high-speed mixer to mix for a certain time to obtain the yellow toner.
Example three:
a color ink powder suitable for low-temperature fixation is characterized by comprising a binder, a pigment, a salicylic acid complex, an internal additive and an external additive, wherein the binder is two unsaturated polyester adhesives, the internal additive is polyethylene wax and polypropylene wax respectively, and the specific gravity of the materials is as follows:
unsaturated polyester adhesive A: 82%, unsaturated polyester adhesive B: 8%, blue pigment: 4.8%, salicylic acid complex: 3%, low molecular polypropylene wax: 1%, low molecular polyethylene wax: 1.2%, external additive: 0.7 percent.
Placing an unsaturated polyester adhesive A, an unsaturated polyester adhesive B, a blue pigment, a salicylic acid complex, low-molecular polypropylene wax and low-molecular polyethylene wax into a professional high-speed mixer with good airtightness to uniformly disperse the substances, then extruding the mixture by a double-screw extruder with the constant temperature of 140 ℃, tabletting, coarsely crushing, finely crushing, and grading to obtain a graded product, wherein the grain size of the graded product is 6-7 mu m. And finally, putting the graded product and the external additive into a high-speed mixer to mix for a certain time to obtain the blue toner.
Example four:
a color ink powder suitable for low-temperature fixation is characterized by comprising a binder, a pigment, a salicylic acid complex, an internal additive and an external additive, wherein the binder is two unsaturated polyester adhesives, the internal additive is polyethylene wax and polypropylene wax respectively, and the specific gravity of the materials is as follows:
unsaturated polyester adhesive A: 85%, unsaturated polyester adhesive B: 6%, black pigment: 4%, salicylic acid complex: 2.5%, low molecular polypropylene wax: 1%, low molecular polyethylene wax: 1.5%, external additive: 0.9 percent.
Placing an unsaturated polyester adhesive A, an unsaturated polyester adhesive B, a black pigment, a salicylic acid complex, a low-molecular polypropylene wax and a low-molecular polyethylene wax into a professional high-speed mixer with good airtightness to uniformly disperse the substances, then extruding the mixture by a double-screw extruder with the constant temperature of 140 ℃, tabletting, coarsely crushing, finely crushing, and grading to obtain a graded product, wherein the grain size of the graded product is 6-7 mu m. And finally, putting the graded product and the external additive into a high-speed mixer to mix for a certain time to obtain the finished black ink powder.
According to the invention, through improving the selection and the proportion of the unsaturated polyester adhesive and the selection and the proportion of the low-molecular polyethylene wax and the low-molecular polypropylene wax, the prepared color toner can be well suitable for low-temperature fixing printers and copiers, and has the effects of firm fixing degree, clear characters and bright pictures.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A color toner suitable for low temperature fixing, comprising a binder, a pigment, a salicylic acid complex, an internal additive and an external additive, wherein the binder comprises an unsaturated polyester adhesive A and an unsaturated polyester adhesive B, the internal additive comprises polyethylene wax and polypropylene wax, and the ratio of the unsaturated polyester adhesive A: 80-85%, and the unsaturated polyester adhesive B: 5-10%, the pigment: 4.0-5.0%, the salicylic acid complex: 2.0-3.0%, and the polyethylene wax: 1.0-2.0%, the polypropylene wax: 1.0-2.0%, the external additive: 0.7 to 1.0 percent.
2. The color toner for low-temperature fusing as claimed in claim 1, wherein the unsaturated polyester adhesive A Tg55 ℃ and the unsaturated polyester adhesive B Tg60 ℃.
3. The color toner for low-temperature fusing according to claim 1, wherein the internal additive is a low-molecular polypropylene wax or a low-molecular polyethylene wax.
4. The color toner for low-temperature fixing according to claim 3, wherein the low-molecular polypropylene wax has a softening point of 140 ℃ and the low-molecular polyethylene wax has a softening point of 110 ℃.
5. The color toner suitable for low-temperature fixing according to claim 1, wherein the external additive is at least one of hydrophobic silica, alumina, zinc stearate, titanium dioxide, or strontium titanate.
6. A preparation method of color toner suitable for low-temperature fixation is characterized by comprising the following steps:
(1) mixing the adhesive, the pigment, the salicylic acid complex and the internal additive on a high-speed mixer in proportion;
(2) extruding the materials by a double-screw extruder at the temperature of 135-140 ℃ and tabletting;
(3) the materials are coarsely crushed, finely crushed and classified to obtain classified products.
7. The method for preparing a color toner suitable for low temperature fusing as claimed in claim 6, wherein the finished color toner is obtained after the classified product is fully mixed with the external additive in the high speed mixer.
8. The method for producing a color toner suitable for low-temperature fixing according to claim 7, wherein the binder comprises an unsaturated polyester binder A and an unsaturated polyester binder B, the internal additive comprises polyethylene wax and polypropylene wax, and the ratio of the unsaturated polyester binder A: 80-85%, and the unsaturated polyester adhesive B: 5-10%, the pigment: 4.0-5.0%, the salicylic acid complex: 2.0-3.0%, and the polyethylene wax: 1.0-2.0%, the polypropylene wax: 1.0-2.0%, the external additive: 0.7 to 1.0 percent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010902670.8A CN112083635A (en) | 2020-09-01 | 2020-09-01 | Color ink powder suitable for low-temperature fixing and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010902670.8A CN112083635A (en) | 2020-09-01 | 2020-09-01 | Color ink powder suitable for low-temperature fixing and preparation method thereof |
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| CN112083635A true CN112083635A (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010902670.8A Pending CN112083635A (en) | 2020-09-01 | 2020-09-01 | Color ink powder suitable for low-temperature fixing and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1115197A (en) * | 1997-06-24 | 1999-01-22 | Minolta Co Ltd | Electrostatic charge image developing toner |
| CN101989052A (en) * | 2009-07-29 | 2011-03-23 | 施乐公司 | Toner compositions |
| CN110083023A (en) * | 2019-05-13 | 2019-08-02 | 邯郸汉光办公自动化耗材有限公司 | A kind of bronze red ink powder and preparation method thereof being exclusively used in official document printing |
-
2020
- 2020-09-01 CN CN202010902670.8A patent/CN112083635A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1115197A (en) * | 1997-06-24 | 1999-01-22 | Minolta Co Ltd | Electrostatic charge image developing toner |
| CN101989052A (en) * | 2009-07-29 | 2011-03-23 | 施乐公司 | Toner compositions |
| CN110083023A (en) * | 2019-05-13 | 2019-08-02 | 邯郸汉光办公自动化耗材有限公司 | A kind of bronze red ink powder and preparation method thereof being exclusively used in official document printing |
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Effective date of registration: 20230807 Address after: 061800 Song Men Xiang Xi Song Men Cun Nan (Song Men Industrial Park), Wuqiao County, Cangzhou City, Hebei Province Applicant after: Cangzhou Tiantongyuan Synthetic Materials Co.,Ltd. Address before: 061000 Songmen Industrial Park, Wuqiao County, Cangzhou City, Hebei Province Applicant before: Cangzhou Huibao toner manufacturing Co.,Ltd. |