CN100501578C - Black powdered carbon for color copier and its preparing process - Google Patents
Black powdered carbon for color copier and its preparing process Download PDFInfo
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- CN100501578C CN100501578C CNB2006100411254A CN200610041125A CN100501578C CN 100501578 C CN100501578 C CN 100501578C CN B2006100411254 A CNB2006100411254 A CN B2006100411254A CN 200610041125 A CN200610041125 A CN 200610041125A CN 100501578 C CN100501578 C CN 100501578C
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Abstract
The disclosed preparation method for black carbon powder of color copier comprises: selecting material as 5-10 carbon black, 80-90 polyester resin, 4-8 polypropylene wax, 5-10 charge regulator, 6-10 dimethyldichlorosilane, and 5-8 hexamethyldisilazane; mixing, extruding, smashing, and sieving. This invention can reduce cost and machine fault, and provides sharp file.
Description
Technical field
The present invention relates to a kind of carbon dust and preparation method thereof.Specifically, be to be used for black powdered carbon for color copier that duplicates by colored manuscript or colour picture and preparation method thereof.
Background technology
At present, the carbon dust that uses on the color copy machine, its Main Ingredients and Appearance resin all are to adopt styrene and acrylic acid bipolymer.There is following problem in the color copy machine carbon dust that utilizes this resin to make as primary raw material: in the production run, be difficult to pulverize the big and out-of-shape of particle.Because particle is big and out-of-shape, during duplicating, is difficult to answering equably on paper, not only imaging effect is relatively poor, and the consumption of carbon dust is many, use cost is higher.Because styrene and acrylic acid bipolymer have peculiar smell, make the carbon dust of making that peculiar smell also be arranged again, be unfavorable for environmental protection.
Summary of the invention
The problem to be solved in the present invention provides a kind of black powdered carbon for color copier.This black carbon powder, not only particle is little, regular shape, imaging effect are good, and consumption is few when duplicating, use cost is low.
Another problem that the present invention will solve provides a kind of method for preparing black powdered carbon for color copier.
For addressing the above problem, take following technical scheme:
Black powdered carbon for color copier of the present invention is made up of the starting material of following parts by weight:
5～10 parts of carbon blacks, 80～90 parts in vibrin, 4～8 parts of polypropylene waxes, 5～10 parts of charge adjusting agents, 6～10 parts of dimethyldichlorosilanes, 5～8 parts of hexamethyldisilazanes.
Said vibrin is according to terephthalate: the ratio reaction of isophthalic acid ester=2:8 forms, and charge adjusting agent is metal salicylate chromium complex or metal azo chromium complex.
The method for preparing black powdered carbon for color copier may further comprise the steps successively:
(1) earlier carbon black, vibrin, polypropylene wax and charge adjusting agent are poured in the mixing roll,, made compound through evenly mixing;
(2) more above-mentioned compound is dropped in the extruding machine, under 90～150 ℃ temperature, compound is extruded and suppressed in flakes; Then the sheet compound is cooled off to 40～50 ℃, and be ground into fragment;
(3) afterwards, with comminutor above-mentioned fragment is ground into the flour that particle diameter is 30～50 μ m;
(4) afterwards, above-mentioned flour is further pulverized with comminutor, and carry out classification successively, separation, collection, obtaining particle diameter is the semi-manufacture particle of 7～9 μ m;
(5) again after, add dimethyldichlorosilane and hexamethyldisilazane, with 850～950 rev/mins stirring machines stirrings 3～4 minutes, make its flowability greater than 20%, carry out surface modification treatment;
(6) last, sieve with 200～250 purpose screen clothes, make black powdered carbon for color copier.
Take such scheme, have the following advantages:
Because the used resin of black carbon powder of the present invention is a vibrin, this resin is according to terephthalate: the ratio reaction of isophthalic acid ester=2:8 forms, with this resin with raw materials such as polypropylene wax, charge adjusting agent, dimethyldichlorosilane and hexamethyldisilazanes, through mixing, extrusion molding, pulverize and black carbon powder that step such as sieve is made, pulverize the less and comparison rule of particle in the production run easily.Because the less and comparison rule of particle during duplicating, is formed four kinds of Essential colour with yellow, red, cyan carbon dust, can be equably attached on the paper, not only imaging effect is good, and consumption is few, use cost is lower.Again because used resin is a vibrin; and this resin is according to terephthalate: the ratio reaction of isophthalic acid ester=2:8 forms; terephthalate wherein and isophthalic acid ester free from extraneous odour, the feasible black carbon powder of making is free from extraneous odour also, helps environmental protection.
Embodiment
First embodiment
Choose 7 parts carbon black, 85 parts vibrin, 6 parts polypropylene wax, 7 parts charge adjusting agent, 8 parts dimethyldichlorosilane and 6 parts hexamethyldisilazane, stand-by.
Earlier carbon black, vibrin, polypropylene wax and charge adjusting agent are poured in the mixing roll,, made compound through evenly mixing.
Again above-mentioned compound is dropped in the extruding machine, under 130 ℃ temperature, compound is extruded and suppressed in flakes.With fan the sheet compound is cooled off to 45 ℃ then, and be ground into fragment with comminutor.
Afterwards, with comminutor above-mentioned fragment is ground into the flour that particle diameter is 40 μ m.
Afterwards, be 7kg/m with pressure
3Pressurized air in the fluidized bed comminutor, above-mentioned flour is carried out air-flow and pulverizes.Then, carry out classification, separate, collect with drip catcher with cyclone separator with 5500 rev/mins grader successively, obtaining particle diameter is the semi-manufacture particle of 7～9 μ m.
Again, add dimethyldichlorosilane and hexamethyldisilazane, stirred 3 minutes, make its flowability, carry out surface modification treatment greater than 20% with 900 rev/mins mixing rolls.
At last, sieve, make black powdered carbon for color copier with 200 purpose screen clothes.
Wherein: vibrin is according to terephthalate: the ratio of isophthalic acid ester=2:8, adopt the reaction of fat exchange process to form.The particle diameter of said dimethyldichlorosilane and hexamethyldisilazane is respectively 35 microns and 7 microns.Said charge adjusting agent is electronegative charge adjusting agent, and this electronegative charge adjusting agent is the metal salicylate chromium complex.
Second embodiment
Choose 10 parts carbon black, 90 parts vibrin, 8 parts polypropylene wax, 10 parts charge adjusting agent, 10 parts dimethyldichlorosilane and 8 parts hexamethyldisilazane, stand-by.
Earlier carbon black, vibrin, polypropylene wax and charge adjusting agent are poured in the mixing roll,, made compound through evenly mixing.
Again above-mentioned compound is dropped in the extruding machine, under 150 ℃ temperature, compound is extruded and suppressed in flakes; With fan the sheet compound is cooled off to 50 ℃ then, and be ground into fragment with comminutor.
Afterwards, with comminutor above-mentioned fragment is ground into the flour that particle diameter is 50 μ m.
Afterwards, be 7.5kg/m with pressure
3Pressurized air in the fluidized bed comminutor, above-mentioned flour is carried out air-flow and pulverizes.Then, carry out classification, separate, collect with drip catcher with cyclone separator with 6000 rev/mins grader successively, obtaining particle diameter is the semi-manufacture particle of 7～9 μ m.
Again, add dimethyldichlorosilane and hexamethyldisilazane, stirred 4 minutes, make its flowability, carry out surface modification treatment greater than 20% with 900 rev/mins stirring machines.
At last, sieve, make black powdered carbon for color copier with 250 purpose screen clothes.
Wherein: vibrin is according to terephthalate: the ratio of isophthalic acid ester=2:8, adopt the reaction of fat exchange process to form.The particle diameter of said dimethyldichlorosilane and hexamethyldisilazane is respectively 35 microns and 7 microns.Said charge adjusting agent is electronegative charge adjusting agent, and this electronegative charge adjusting agent is a metal azo chromium complex.
The 3rd embodiment
Choose 5 parts carbon black, 80 parts vibrin, 4 parts polypropylene wax, 5 parts charge adjusting agent, 6 parts dimethyldichlorosilane and 5 parts hexamethyldisilazane, stand-by.
Earlier carbon black, vibrin, polypropylene wax and charge adjusting agent are poured in the mixing roll,, made compound through evenly mixing.
Again above-mentioned compound is dropped in the extruding machine, under 90 ℃ temperature, compound is extruded and suppressed in flakes; With fan the sheet compound is cooled off to 40 ℃ then, and be ground into fragment with comminutor.
Afterwards, with comminutor above-mentioned fragment is ground into the flour that particle diameter is 30 μ m.
Afterwards, be 8kg/m with pressure
3Pressurized air in the fluidized bed comminutor, above-mentioned flour is carried out air-flow and pulverizes.Then, carry out classification, separate, collect with drip catcher with cyclone separator with 5200 rev/mins grader successively, obtaining particle diameter is the semi-manufacture particle of 7～9 μ m.
Again, add dimethyldichlorosilane and hexamethyldisilazane, stirred 3 minutes, make its flowability, carry out surface modification treatment greater than 20% with 900 rev/mins stirring machines.
At last, sieve, make black powdered carbon for color copier with 230 purpose screen clothes.
Wherein: vibrin is according to terephthalate: the ratio of isophthalic acid ester=2:8, adopt the reaction of fat exchange process to form.The particle diameter of said dimethyldichlorosilane and hexamethyldisilazane is respectively 35 microns and 7 microns.Said charge adjusting agent is electronegative charge adjusting agent, and this electronegative charge adjusting agent is the metal salicylate chromium complex.
Claims (3)
1. black powdered carbon for color copier is characterized in that being made up of the starting material of following parts by weight:
5～10 parts of carbon blacks;
80～90 parts in vibrin;
4～8 parts of polypropylene waxes;
5～10 parts of charge adjusting agents;
6～10 parts of dimethyldichlorosilanes;
5～8 parts of hexamethyldisilazanes;
Said vibrin is according to terephthalate: the ratio reaction of isophthalic acid ester=2:8 forms.
2. black powdered carbon for color copier according to claim 1 is characterized in that charge adjusting agent is metal salicylate chromium complex or metal azo chromium complex.
3. according to the preparation method of the described black powdered carbon for color copier of claim 1, it is characterized in that may further comprise the steps successively:
(1) earlier carbon black, vibrin, polypropylene wax and charge adjusting agent are poured in the mixing roll,, made compound through evenly mixing;
(2) more above-mentioned compound is dropped in the extruding machine, under 90～150 ℃ temperature, compound is extruded and suppressed in flakes; Then the sheet compound is cooled off to 40～50 ℃, and be ground into fragment;
(3) afterwards, with comminutor above-mentioned fragment is ground into the flour that particle diameter is 30～50 μ m;
(4) afterwards, above-mentioned flour is further pulverized with comminutor, and carry out classification successively, separation, collection, obtaining particle diameter is the semi-manufacture particle of 7～9 μ m;
(5) again after, add dimethyldichlorosilane and hexamethyldisilazane, with 850～950 rev/mins mixing rolls stirrings 3～4 minutes, make its flowability greater than 20%, carry out surface modification treatment;
(6) last, sieve with 200～250 purpose screen clothes, make black powdered carbon for color copier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100411254A CN100501578C (en) | 2006-08-02 | 2006-08-02 | Black powdered carbon for color copier and its preparing process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100411254A CN100501578C (en) | 2006-08-02 | 2006-08-02 | Black powdered carbon for color copier and its preparing process |
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| Publication Number | Publication Date |
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| CN1908821A CN1908821A (en) | 2007-02-07 |
| CN100501578C true CN100501578C (en) | 2009-06-17 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2008061414A1 (en) * | 2006-11-19 | 2008-05-29 | Xueliang Zhou | Durable and anti fake toner for laser printer and its preparation method |
| CN102053516A (en) * | 2010-11-01 | 2011-05-11 | 广州市科密化学有限公司 | Preparation method of dry-type nonmagnetic single-component positive electricity carbon powder for laser printer |
| CN105137728A (en) * | 2015-07-02 | 2015-12-09 | 武汉宝特龙科技股份有限公司 | Powdered ink preparation apparatus and preparation method |
| CN105425557A (en) * | 2015-12-01 | 2016-03-23 | 无锡佳腾磁性粉有限公司 | High-definition digital dry-type bi-component electronegative powdered ink and preparation method therefor |
| CN111607182B (en) * | 2020-06-08 | 2022-04-22 | 张家港威迪森化学有限公司 | Styrene-acrylic copolymer resin composition and preparation method and application thereof |
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Assignee: Wuxi Jiateng Magnetic Powder Co., Ltd. Assignor: Zhou Xueliang Contract record no.: 2011320000282 Denomination of invention: Black powdered carbon for color copier and its preparing process Granted publication date: 20090617 License type: Exclusive License Open date: 20070207 Record date: 20110316 |
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Effective date of registration: 20170707 Address after: 1 No. 214192 Jiangsu province Wuxi city Xishan District Tin New Village Beizhen Bada Road Patentee after: Wuxi Jiateng Magnetic Powder Co., Ltd. Address before: 214101 Jiangsu city in Wuxi Province Economic Development Zone Xishan Xinming Road No. 38 Patentee before: Zhou Xueliang |