CN106842841A - The preparation method of the non magnetic toner of positive electricity - Google Patents
The preparation method of the non magnetic toner of positive electricity Download PDFInfo
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- CN106842841A CN106842841A CN201710235981.1A CN201710235981A CN106842841A CN 106842841 A CN106842841 A CN 106842841A CN 201710235981 A CN201710235981 A CN 201710235981A CN 106842841 A CN106842841 A CN 106842841A
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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
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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
- G03G9/0821—Developers with toner particles characterised by physical parameters
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Abstract
The present invention provides a kind of preparation method of the non magnetic toner of positive electricity, wherein, the non magnetic toner of positive electricity includes tone masterbatch and additive, tone masterbatch includes the charge control agent of styrene-acrylic resin, the releasing agent of 3 weight portions, the colouring agent of 6 weight portions and 3 weight portions of 100 weight portions, and additive includes small particle hydrophobic silica, the polymethyl methacrylate of big particle diameter hydrophobic silica, the barium titanate of 0.7 weight portion and 0.3 weight portion that 0.4 weight portion particle diameter is 40 nanometers to 200 nanometers that 0.5 weight portion particle diameter is 7 nanometers to 20 nanometers；Preparation method includes pre-mixing process and afterwards mixed step.The present invention is coordinated by the selection of raw material and hybrid technique, prepares the print quality non magnetic toner of good positive electricity.
Description
Technical field
The present invention relates to a kind of preparation method of toner, the preparation side of more particularly to a kind of non magnetic toner of positive electricity
Method.
Background technology
Existing printer generally comprises two major classes, laser printer and ink-jet printer, and laser printer is compared to spray
Black printer possesses that print speed is fast, printing low cost and other advantages, therefore is widely used in office space, particularly in recent years
Carry out the popularization of color laser printing, the market of laser printing is increasing, and the original-pack toner that laser printer is used is (logical
Often also referred to as carbon dust) often price it is higher, limit the use of user.
The compatible consumptive material of general consumptive material enterprise production is favored because its is cheap by users, but researcher
In the toner of the TN580 powder boxes of the fraternal laser printer HL-5240 printers of exploitation, easily go out during printing test
The problems such as existing OPC ghost images, bottom ash and blackboard trail, the particularly upper powder of life test later stage developer roll appearance is bad, blackboard hangover
Seriously, only it is difficult to be fully solved above mentioned problem by adjusting the formula and change additive of toner.
The content of the invention
In order to solve the above problems, it is an object of the invention to provide a kind of printing effect non magnetic toner of good positive electricity
Preparation method.
To achieve these goals, the present invention provides a kind of preparation method of the non magnetic toner of positive electricity, wherein, positive electricity is non-
Magnetic toner includes tone masterbatch and additive, the styrene-acrylic resin of tone masterbatch including 100 weight portions, 3 weight portions
The charge control agent of releasing agent, the colouring agent of 6 weight portions and 3 weight portions, additive includes 0.5 weight portion particle diameter for 7 nanometers extremely
20 nanometers of small particle hydrophobic silica, 0.4 weight portion particle diameter are 40 nanometers to 200 nanometers of big particle diameter hydrophobicity dioxy
The polymethyl methacrylate of SiClx, the barium titanate of 0.7 weight portion and 0.3 weight portion；Preparation method includes pre-mixing process with after
Mixed step；Pre-mixing process includes, tone masterbatch is mixed into 2 minutes with 600 revs/min of rotating speed in mixer first, so
Mixed 2 minutes with 1200 revs/min of rotating speed again afterwards；Mixing step afterwards includes, female to the toner obtained in pre-mixing process first
Add additive in material mixture, 2 minutes to 3 minutes mixed with 600 revs/min of rotating speed in mixer, then again with
1200 revs/min of rotating speed mixes 2 minutes to 4 minutes.
Further scheme is in mixing step afterwards, mixes 2 minutes with 600 revs/min of rotating speed first, then again with
1200 revs/min of rotating speed mixes 2 minutes.
The scheme of one replacement is in mixing step afterwards, mixes 3 minutes with 600 revs/min of rotating speed first, then again with
1200 revs/min of rotating speed mixes 2 minutes.
The scheme of one replacement is in mixing step afterwards, mixes 3 minutes with 600 revs/min of rotating speed first, then again with
1200 revs/min of rotating speed mixes 3 minutes.
The scheme of one replacement is in mixing step afterwards, mixes 3 minutes with 600 revs/min of rotating speed first, then again with
1200 revs/min of rotating speed mixes 4 minutes.
Further scheme is that pre-mixing process also includes：Melting mixing step, by mixed toner masterbatch mixture
, into mixture, the temperature of control mixing is between 100 to 140 degrees centigrade for melting mixing in kneading machine；Cooling step, will be mixed
Refining thing is cooled to room temperature；Crushing and classification step, particle is ground into by the mixture after cooling, and is classified out in particle a diameter of
5 microns to 20 microns of tone masterbatch.
Further scheme is that mixing step afterwards also includes：Screening step, by the rear mixed tone masterbatch for obtaining and addition
Agent composition sieving removal coarse granule, sieve number is 80 mesh to 150 mesh, preferably 100 mesh.
The beneficial effects of the invention are as follows：Additive is added by tone masterbatch, to change the band of tone masterbatch
Electricity and mobility, and be pre-mixed to toner masterbatch by pre-mixing process, by rear mixed step to toner masterbatch and
Additive mixes after carrying out, and changes distribution and embedded degree of the additive in the non magnetic toner of positive electricity, while can also change
Its carried charge and mobility.The present invention is coordinated by the selection of raw material and hybrid technique, prepares print quality good just
The non magnetic toner of electricity.
Specific embodiment
The non magnetic toner of positive electricity of the invention includes tone masterbatch and additive, and tone masterbatch includes phenylpropyl alcohol tree
Fat, releasing agent, colouring agent and charge control agent, additive include silica, barium titanate and polymethyl methacrylate, invention
People is formulated by adjusting, and 4 groups of non magnetic toners of positive electricity are prepared altogether, and each component content is referring to table 1.
Table 1
Wherein, between 7 nanometers to 20 nanometers, the particle diameter of large granular silicon dioxide is 40 for the particle diameter of fine-particle silicon dioxide
To between 200 nanometers, the surface of fine-particle silicon dioxide and large granular silicon dioxide is processed nanometer by hydrophobicity.The present invention
In, colouring agent it is also possible to use Cyanine Black, ferrite, nigrosine etc. in addition to carbon black, the wax that releasing agent is used can be paraffin,
Low-molecular polypropylene wax, low-molecular polyethylene wax, Brazil wax etc., charge control agent may be used also except oil-soluble aniline infrablack
Use quaternary ammonium salt etc..
The non magnetic toner of positive electricity that embodiment 1 is obtained to embodiment 4 is fitted into TN580 powder boxes, in HL-5240 printings
Printing test is carried out on machine, test result is referring to table 2.
Table 2
Wherein, OPC ghost images refer to the phenomenon of duplicating property word below printing character.
BG is bottom ash value, and bottom ash refers to that non-developing regional dusky situation occurs, can measure printing paper by gray scale instrument
The value of blank region is obtained with the difference of the value in the region (without the region of transfer) covered by other paper, BG's
The smaller explanation printing effect of numerical value is better.
Blackboard hangover refers to the completely black plate of printing, and dusky situation occurs in the part below blackboard.
It can be seen that, the quality of the non magnetic toner of positive electricity prepared according to the formula of embodiment 4 is optimal, but still exists
OPC ghost images and the phenomenon of blackboard hangover.Inventor proceeds research to the formula of embodiment 4, by the improvement of technique, thoroughly
Solve above mentioned problem.
Premixing process：The tone masterbatch of embodiment 4 is carried out into 3 groups of premixs according to the formula in table 1 to test, premixing process
Referring to table 3.
Table 3
| R1/rpm | T1/min | R2/rpm | T2/min | |
| First group | 600 | 5 | 0 | 0 |
| Second group | 0 | 0 | 1200 | 5 |
| 3rd group | 600 | 2 | 1200 | 2 |
Wherein, R1 represents rotating speed 1, its unit rpm for rev/min, T1 represents the R1 corresponding times, and unit is minute；R1
Represent rotating speed 2, its unit also for rev/min, T2 represents the R2 corresponding times, and unit is minute.
First group：By 100 parts of styrene-acrylic resin, 3 parts of wax, 3 parts of oil-soluble nigrosine and 6 parts of carbon black in mixer
Mixed 5 minutes with 600 revs/min of rotating speed in (such as Henschel mixer), form toner masterbatch mixture；Then will mixing
The melting mixing in kneading machine (such as parallel double-screw kneading machine) of toner masterbatch mixture afterwards, into mixture, controls mixing
Temperature is between 100 to 140 degrees centigrade；Then mixture is cooled to room temperature；Finally the mixture after cooling is ground into
Particle, and a diameter of 5 microns to 20 microns of tone masterbatch is classified out in the particle.
Second group：By 100 parts of styrene-acrylic resin, 3 parts of wax, 3 parts of oil-soluble nigrosine and 6 parts of carbon black in mixer
Mixed 5 minutes with 1200 revs/min of rotating speed in (such as Henschel mixer), form toner masterbatch mixture；Then will be mixed
Toner masterbatch mixture after conjunction in kneading machine (such as parallel double-screw kneading machine) melting mixing into mixture, control mixing
Temperature between 100 to 140 degrees centigrade；Then mixture is cooled to room temperature；Finally the mixture after cooling is crushed
Into particle, and a diameter of 5 microns to 20 microns of tone masterbatch is classified out in the particle.
3rd group：By 100 parts of styrene-acrylic resin, 3 parts of wax, 3 parts of oil-soluble nigrosine and 6 parts of carbon black in mixer
First mixed 2 minutes with 600 revs/min of rotating speed in (such as Henschel mixer), then mix 5 points with 1200 revs/min of rotating speed
Clock, forms toner masterbatch mixture；Then by mixed toner masterbatch mixture, in kneading machine, (such as parallel double-screw is mixed
Mill) in melting mixing into mixture, control the temperature of mixing between 100 to 140 degrees centigrade；Then mixture is cooled down
To room temperature；The mixture after cooling is finally ground into particle, and a diameter of 5 microns to 20 microns are classified out in the particle
Tone masterbatch.
Take the tone masterbatch that first group, second group and the 3rd group technique obtains to be respectively charged into TN580 powder boxes, in HL-
Printing test is carried out on 5240 printers, test result is referring to table 4.
Table 4
| Test index | First group | Second group | 3rd group |
| OPC ghost images | Occasionally there are OPC ghost images | Occasionally there are OPC ghost images | Occasionally there are OPC ghost images |
| BG | 0.6 | 0.7 | 0.5 |
| Blackboard trails | Middle of life trails | Later stage in life-span trails | Do not trail |
From the test result of table 4, in premixing process, the difference of rotating speed and time, on OPC ghost images and the influence of BG values not
Greatly, blackboard hangover is had a certain impact, the 3rd group of premixing process solves the problems, such as that blackboard trails, but still there is OPC
The problem of ghost image, inventor has carried out rear mixed engineer testing to the tone masterbatch that the 3rd group of premixing process is obtained.
Technique is mixed afterwards：The additive of embodiment 4 is added to the tone that the 3rd group of premixing process is obtained according to the formula of table 1
In masterbatch, experiment is mixed after carrying out, technique is mixed afterwards referring to table 5.
Table 5
| R1/rpm | T1/min | R2/rpm | T2/min | |
| 4th group | 600 | 2 | 1200 | 2 |
| 5th group | 600 | 3 | 1200 | 2 |
| 6th group | 600 | 3 | 1200 | 3 |
| 7th group | 600 | 3 | 1200 | 4 |
4th group：It it is 7 nanometers to 20 to 0.5 weight portion particle diameter is added in the tone masterbatch that the 3rd group of premixing process is obtained
Small particle hydrophobic silica, the big particle diameter hydrophobicity titanium dioxide that 0.4 weight portion particle diameter is 40 nanometers to 200 nanometers of nanometer
The polymethyl methacrylate of silicon, the barium titanate of 0.7 weight portion and 0.3 weight portion, in mixer (such as Henschel mixer)
First mixed 2 minutes with 600 revs/min of rotating speed, then first mixed 2 minutes with 1200 revs/min of rotating speed, mixture crossed and is weeded out
Except coarse granule, sieve number are 80 mesh to 150 mesh, preferably 100 mesh obtain the non magnetic toner A1 of positive electricity.
5th group：It it is 7 nanometers to 20 to 0.5 weight portion particle diameter is added in the tone masterbatch that the 3rd group of premixing process is obtained
Small particle hydrophobic silica, the big particle diameter hydrophobicity titanium dioxide that 0.4 weight portion particle diameter is 40 nanometers to 200 nanometers of nanometer
The polymethyl methacrylate of silicon, the barium titanate of 0.7 weight portion and 0.3 weight portion, in mixer (such as Henschel mixer)
First mixed 3 minutes with 600 revs/min of rotating speed, then first mixed 2 minutes with 1200 revs/min of rotating speed, mixture crossed and is weeded out
Except coarse granule, sieve number are 80 mesh to 150 mesh, preferably 100 mesh obtain the non magnetic toner A2 of positive electricity.
6th group：It it is 7 nanometers to 20 to 0.5 weight portion particle diameter is added in the tone masterbatch that the 3rd group of premixing process is obtained
Small particle hydrophobic silica, the big particle diameter hydrophobicity titanium dioxide that 0.4 weight portion particle diameter is 40 nanometers to 200 nanometers of nanometer
The polymethyl methacrylate of silicon, the barium titanate of 0.7 weight portion and 0.3 weight portion, in mixer (such as Henschel mixer)
First mixed 3 minutes with 600 revs/min of rotating speed, then first mixed 3 minutes with 1200 revs/min of rotating speed, mixture crossed and is weeded out
Except coarse granule, sieve number are 80 mesh to 150 mesh, preferably 100 mesh obtain the non magnetic toner A3 of positive electricity.
7th group：It it is 7 nanometers to 20 to 0.5 weight portion particle diameter is added in the tone masterbatch that the 3rd group of premixing process is obtained
Small particle hydrophobic silica, the big particle diameter hydrophobicity titanium dioxide that 0.4 weight portion particle diameter is 40 nanometers to 200 nanometers of nanometer
The polymethyl methacrylate of silicon, the barium titanate of 0.7 weight portion and 0.3 weight portion, in mixer (such as Henschel mixer)
First mixed 3 minutes with 600 revs/min of rotating speed, then first mixed 4 minutes with 1200 revs/min of rotating speed, mixture crossed and is weeded out
Except coarse granule, sieve number are 80 mesh to 150 mesh, preferably 100 mesh obtain the non magnetic toner A4 of positive electricity.
Positive electricity non magnetic toner A1, A2, A3 and A4 is taken to be respectively charged into TN580 powder boxes, it is enterprising in HL-5240 printers
Row printing test, test result is referring to table 6.
Table 6
From the test result of table 6, mix afterwards in technique, the difference of rotating speed and time is produced to OPC ghost images and blackboard hangover
Raw influence, because mixing distribution and embedded degree of the technogenic influence additive in the non magnetic toner of positive electricity afterwards.Wherein, the 6th
The non magnetic toner of positive electricity that mixed technique is obtained after group is best in quality, solves the problems, such as original toner.
In sum, the development process of the non magnetic toner of positive electricity is selection, technique and the device height cooperation of raw material
Result, the fine difference of its technique all can produce influence, finally be embodied in printing effect on the carried charge of toner and mobility
On fruit.The present invention successfully solves TN580 powder boxes in HL-5240 printers by the selection and the improvement of technique to material
The problem of the middle OPC ghost images for occurring, bottom ash and blackboard hangover.
Technology design of the invention is not limited in above-described embodiment, can also obtain many not according to design of the invention
With concrete scheme, the adjustment in zone of reasonableness such as is carried out to the proportioning of each material, to mixing when the speed that stirs and the time exist
Be adjusted in zone of reasonableness etc., these minor alterations and equivalent transformation should be included in scope described in claim it
It is interior.
Claims (8)
1. the preparation method of the non magnetic toner of positive electricity, it is characterised in that：
The non magnetic toner of positive electricity includes tone masterbatch and additive, and the tone masterbatch includes 100 weight portions
The charge control agent of styrene-acrylic resin, the releasing agent of 3 weight portions, the colouring agent of 6 weight portions and 3 weight portions, the additive includes
0.5 weight portion particle diameter be 7 nanometers to 20 nanometers small particle hydrophobic silica, 0.4 weight portion particle diameter be 40 nanometers to 200
The polymethyl methacrylate of the big particle diameter hydrophobic silica, the barium titanate of 0.7 weight portion and 0.3 weight portion of nanometer；
The preparation method includes pre-mixing process and afterwards mixed step；
The pre-mixing process includes
Tone masterbatch mixed 2 minutes in mixer with 600 revs/min of rotating speed, is then turned with 1200 revs/min again
Speed mixing 2 minutes；
Mixed step includes after described
To adding the additive in the toner masterbatch mixture obtained in the pre-mixing process, in mixer with 600 turns/
The rotating speed of minute mixes 2 minutes to 3 minutes, is then mixed 2 minutes to 4 minutes with 1200 revs/min of rotating speed again.
2. preparation method according to claim 1, it is characterised in that：
After described in mixed step, mixed 2 minutes with 600 revs/min of rotating speed, then mix 2 with 1200 revs/min of rotating speed again
Minute.
3. preparation method according to claim 1, it is characterised in that：
After described in mixed step, mixed 3 minutes with 600 revs/min of rotating speed, then mix 2 with 1200 revs/min of rotating speed again
Minute.
4. preparation method according to claim 1, it is characterised in that：
After described in mixed step, mixed 3 minutes with 600 revs/min of rotating speed, then mix 3 with 1200 revs/min of rotating speed again
Minute.
5. preparation method according to claim 1, it is characterised in that：
After described in mixed step, mixed 3 minutes with 600 revs/min of rotating speed, then mix 4 with 1200 revs/min of rotating speed again
Minute.
6. the preparation method according to any one of claim 1 to 5, it is characterised in that：
The pre-mixing process also includes
Melting mixing step, by mixed toner masterbatch mixture, melting mixing is into mixture in kneading machine, and control is mixed
The temperature of refining is between 100 to 140 degrees centigrade；
Cooling step, room temperature is cooled to by the mixture；
Crushing and classification step, particle is ground into by the mixture after cooling, and a diameter of 5 microns are classified out in the particle extremely
20 microns of tone masterbatch.
7. the preparation method according to any one of claim 1 to 5, it is characterised in that：
Mixed step also includes after described
Screening step, by the rear mixed tone masterbatch for obtaining and additive agent mixture sieving removal coarse granule, sieve number is 80
Mesh is between 150 mesh.
8. preparation method according to claim 7, it is characterised in that：
The sieve number is 100 mesh.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710235981.1A CN106842841A (en) | 2017-04-12 | 2017-04-12 | The preparation method of the non magnetic toner of positive electricity |
| PCT/CN2018/082331 WO2018188554A1 (en) | 2017-04-12 | 2018-04-09 | Preparation method for positively charged non-magnetic toner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710235981.1A CN106842841A (en) | 2017-04-12 | 2017-04-12 | The preparation method of the non magnetic toner of positive electricity |
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| CN106842841A true CN106842841A (en) | 2017-06-13 |
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| CN201710235981.1A Pending CN106842841A (en) | 2017-04-12 | 2017-04-12 | The preparation method of the non magnetic toner of positive electricity |
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| WO (1) | WO2018188554A1 (en) |
Cited By (1)
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|---|---|---|---|---|
| CN108710271A (en) * | 2018-05-16 | 2018-10-26 | 珠海思美亚碳粉有限公司 | A kind of modified carbon dust and preparation method thereof, cartridge |
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| CN104698779A (en) * | 2015-02-13 | 2015-06-10 | 珠海思美亚碳粉有限公司 | Nonmagnetic toner and preparation method thereof |
| CN106249560A (en) * | 2016-08-30 | 2016-12-21 | 广东丽格科技股份有限公司 | A kind of electrophotography electropositive colored carbon powder and preparation method thereof |
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- 2017-04-12 CN CN201710235981.1A patent/CN106842841A/en active Pending
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- 2018-04-09 WO PCT/CN2018/082331 patent/WO2018188554A1/en active Application Filing
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| EP1239334B1 (en) * | 2001-03-08 | 2011-05-11 | Ricoh Company, Ltd. | Toner composition |
| JP2004037504A (en) * | 2002-06-28 | 2004-02-05 | Kao Corp | Method for manufacturing toner |
| CN101968618A (en) * | 2010-09-28 | 2011-02-09 | 珠海思美亚碳粉有限公司 | Method for regenerating carbon powder for electrophototgraphic imaging device |
| CN102621841A (en) * | 2012-03-28 | 2012-08-01 | 南京新天兴影像科技有限公司 | Electropositive magnetic single component developer for laser printer |
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| CN108710271A (en) * | 2018-05-16 | 2018-10-26 | 珠海思美亚碳粉有限公司 | A kind of modified carbon dust and preparation method thereof, cartridge |
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