CN103529669A - Non-magnetic single-component electropositive color matching agent for laser printer - Google Patents
Non-magnetic single-component electropositive color matching agent for laser printer Download PDFInfo
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- CN103529669A CN103529669A CN201310501835.0A CN201310501835A CN103529669A CN 103529669 A CN103529669 A CN 103529669A CN 201310501835 A CN201310501835 A CN 201310501835A CN 103529669 A CN103529669 A CN 103529669A
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Abstract
The invention relates to a non-magnetic single-component electropositive color matching agent for a laser printer. The non-magnetic single-component electropositive color matching agent comprises the following components in percentage by weight: 40-90wt% of adhesive resin, 3-10wt% of pigment, 1-8wt% of charging conditioning agent, 0.1-0.8wt% of internal additive and 0.1-4wt% of external additive, wherein the percentage by weight is based on the total weight of the color matching agent; the adhesive resin is a styrene-acrylic copolymer with the number average molecular weight of one hundred thousand to two hundred thousand and the melt index MI of 1.5-5.5; the pigment is carbon black with the average grain diameter of 0.1-2.0 micrometers; the charging conditioning agent is aniline black dye; the external additive is one of or a combination of multiple of hydrophobic silica, aluminium oxide, zinc stearate, titanium dioxide and cerium oxide. The non-magnetic single-component electropositive color matching agent has the advantages that a processing technology is simplified, the production cost is reduced, and images printed by using the color matching agent have high density, high resolution ratio and small bottom ash.
Description
Technical field
The present invention relates to a kind of laser printer without magnetic one-component electropositivity toner, for positive electricity laser printer.
Background technology
Existing laser printer without magnetic one-component electropositivity toner manufacturing technology in, the toner of producing is thinner, mostly only be suitable for the laser printer of single type, and the composition of this toner is complicated, processing difficulties, cost is higher, and many producers is large without magnetic one-component electropositivity toner bottom ash, the back side is dirty, is not suitable for especially duplex printing; Selecting aspect adhesive resin, general multiselect is polymerized with the adhesive resin of two or more various criterion, due to toner chargeding performance, powder characteristics and process are had to strict requirement and restriction, thereby make manufacturing process more complicated and strengthen cost of products; Toner is used accommodation narrow, often can only be for the laser printer of single type.
Summary of the invention
The object of the present invention is to provide that a kind of image density is high, resolution is high, bottom ash is little and good endurance, to stronger, easy to process, the lower-cost laser printer of multiple electropositivity laser printer applicability without magnetic one-component electropositivity toner.
Technical scheme of the present invention is: adhesive resin, pigment, charged correctives and interior external additive, consist of, described adhesive resin is selected styrene-acrylic copolymer, described pigment is selected carbon black, described charged correctives is selected aniline black byestuffs, in described, add agent and select low-molecular polypropylene wax, described additive is selected one or more compositions in hydrophobic silica, aluminium oxide, zinc stearate, titania and ceria, and each component forms weight ratio and is:
Adhesive resin 40 ~ 90wt%, pigment 3 ~ 10 wt%, charged correctives 1 ~ 8 wt%, inside adds agent 0.1 ~ 0.8 wt%; Additive 0.1 ~ 4 wt%, wherein wt% is the general assembly (TW) based on toner.
Specific requirement for key component selection:
The number mean molecular weight of styrene-acrylic copolymer is 10 ~ 200,000, melting index 1.5 ~ 5.5.
Carbon black mean grain size is 0.1 ~ 2.0 μ m.
The hydrophobic deg of hydrophobic silica is 20 ~ 40, and the particle diameter of ceria is 0.1 ~ 1.5 μ m.
The making of toner be by above-mentioned adhesive resin, pigment after weighing, mixing, use special-purpose high precision mixing facilities constant temperature mixing, the materials such as polypropylene wax, charge adjusting agent are distributed in potpourri equably, raw material is after mixing, through cooling, precomminution, coarse crushing and Crushing of Ultrafine, classification, make semi-manufacture again, finally in classification product, add additive in proportion, fully mix, then bulky grain is removed in process screening and the micro-aggregate producing in mixed process, filling machine filling, packing form formal product.
The invention has the beneficial effects as follows: in selection, both required performance index good, and considered again simplified processing process and reduce costs.As adhesive resin is selected styrene-acrylic copolymer, both contained two kinds of different component compositions, improved the performance index of toner, and simplified again production technology and reduced cost, expanded the scope of application of toner simultaneously, respond well for the printer of different types of machines.Charged correctives is selected aniline black byestuffs, stablizes on the one hand the carried charge of toner, on the other hand until the effect of toner.In addition the hydrophobic deg of hydrophobic silica is controlled, in case the conglomeration of the toner moisture absorption affects printing effect.Due to above improvement, make the toner print image density of acquisition high, resolution is high, bottom ash is little.
Embodiment
Embodiment 1 (weight ratio): 100 parts of styrene-acrylic copolymers that MI is 3.0,10 parts of carbon blacks, 4 parts, low-molecular polypropylene wax, 2 parts of aniline black byestuffses, after weighing, mixing, use special-purpose high precision mixing facilities constant temperature mixing above-mentioned four kinds of raw materials, the materials such as polypropylene, charge adjusting agent are distributed in potpourri equably, raw material, after mixing, then obtains the classification product of following size-grade distribution after cooling, precomminution, coarse crushing and Crushing of Ultrafine, classification:
Number average diameter: 6.43 μ m, below 5.04: 26.37%,
Volume mean diameter; 8.76 μ m 16.0 μ m above 0.05%
3 parts of ceria additives are added in above-mentioned classification product, and fully mixing obtains required toner.By this toner, for HL-2240d and Lenovo LJ2400 printer, print image is clear, and permanance is good.
Embodiment 2 (weight ratio): 100 parts of styrene-acrylic copolymers that MI is 1.5,9 parts of carbon blacks, 3.5 parts, low-molecular polypropylene wax, 2 parts of aniline black byestuffses, will obtain the classification product of following size-grade distribution after above-mentioned four kinds of methods by embodiment 1 processing:
Number average diameter: 5.71m, below 5.04: 24.37%,
Volume mean diameter: 9.35 μ m 16.0 μ m above 1.20%
3 parts of ceria additives are added in above-mentioned classification product, and fully mixing obtains required toner.By this toner, for HL-2240d and Lenovo LJ2400 printer, print image is clear, and permanance is good.
Embodiment 3 (weight ratio): 100 parts of styrene-acrylic copolymers that MI is 5.5,9 parts of carbon blacks, 4 parts, low-molecular polypropylene wax, 2.5 parts of aniline black byestuffses, will obtain the classification product of following size-grade distribution after above-mentioned four kinds of methods by embodiment 1 processing:
Number average diameter: 5.71m, below 5.04: 24.37%,
Volume mean diameter: 9.35 μ m 16.0 μ m above 1.20%
3 parts of hydrophobic silica additives are added in above-mentioned classification product, and fully mixing obtains required toner.By this toner, for HL-2240d and Lenovo LJ2400 printer, print image is clear, and permanance is good.
Claims (5)
1. a laser printer is without magnetic one-component electropositivity toner, by adhesive resin, pigment, charged correctives and interior external additive, formed, it is characterized in that: described adhesive resin is selected styrene-acrylic copolymer, described pigment is selected carbon black, described charged correctives is selected aniline black byestuffs, in described, add agent and select low-molecular polypropylene wax, described additive is selected one or more compositions in hydrophobic silica, aluminium oxide, zinc stearate, titania and ceria, and each component forms weight ratio and is:
Adhesive resin 40 ~ 90wt%, pigment 3 ~ 10 wt%, charged correctives 1 ~ 8 wt%, inside adds agent 0.1 ~ 0.8 wt%, additive 0.1 ~ 4 wt%, wherein wt% is the general assembly (TW) based on toner.
2. laser printer as claimed in claim 1, without magnetic one-component electropositivity toner, is characterized in that: it is 10 ~ 200,000 that described adhesive resin is selected styrene-acrylic copolymer number mean molecular weight, melting index MI1.5 ~ 5.5.
3. laser printer as claimed in claim 1, without magnetic one-component electropositivity toner, is characterized in that: the mean grain size of described carbon black is 0.1 ~ 2.0 μ m.
4. laser printer as claimed in claim 1, without magnetic one-component electropositivity toner, is characterized in that: the hydrophobic deg of described hydrophobic silica is 20 ~ 40.
5. laser printer as claimed in claim 1, without magnetic one-component electropositivity toner, is characterized in that: the particle diameter of described ceria is 0.1 ~ 1.5 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310501835.0A CN103529669A (en) | 2013-10-23 | 2013-10-23 | Non-magnetic single-component electropositive color matching agent for laser printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310501835.0A CN103529669A (en) | 2013-10-23 | 2013-10-23 | Non-magnetic single-component electropositive color matching agent for laser printer |
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| CN103529669A true CN103529669A (en) | 2014-01-22 |
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| CN201310501835.0A Pending CN103529669A (en) | 2013-10-23 | 2013-10-23 | Non-magnetic single-component electropositive color matching agent for laser printer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105116697A (en) * | 2014-09-11 | 2015-12-02 | 天津市中环天佳电子有限公司 | Nonmagnetic negative electricity laser printer ink powder |
| CN105929646A (en) * | 2016-06-16 | 2016-09-07 | 南京新天兴影像科技有限公司 | Two-component developing toner for high-speed xerographic printer and preparation method of two-component developing toner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050175924A1 (en) * | 2002-07-19 | 2005-08-11 | Ricoh Company, Ltd. | Toner and image forming method using the toner |
| US20050250028A1 (en) * | 2004-05-07 | 2005-11-10 | Qian Julie Y | Positively charged coated electrographic toner particles and process |
| CN1707366A (en) * | 2004-06-04 | 2005-12-14 | 柯尼卡美能达商用科技株式会社 | Positively chargeable toner, positively chargeable developer and image forming method |
| CN101727034A (en) * | 2010-02-02 | 2010-06-09 | 天津市中环天佳电子有限公司 | Black ceramic inkpowder |
| CN102063030A (en) * | 2009-11-16 | 2011-05-18 | 天津市中环天佳电子有限公司 | Xerographic insulating dry single-component electropositive developer |
-
2013
- 2013-10-23 CN CN201310501835.0A patent/CN103529669A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050175924A1 (en) * | 2002-07-19 | 2005-08-11 | Ricoh Company, Ltd. | Toner and image forming method using the toner |
| US20050250028A1 (en) * | 2004-05-07 | 2005-11-10 | Qian Julie Y | Positively charged coated electrographic toner particles and process |
| CN1707366A (en) * | 2004-06-04 | 2005-12-14 | 柯尼卡美能达商用科技株式会社 | Positively chargeable toner, positively chargeable developer and image forming method |
| CN102063030A (en) * | 2009-11-16 | 2011-05-18 | 天津市中环天佳电子有限公司 | Xerographic insulating dry single-component electropositive developer |
| CN101727034A (en) * | 2010-02-02 | 2010-06-09 | 天津市中环天佳电子有限公司 | Black ceramic inkpowder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105116697A (en) * | 2014-09-11 | 2015-12-02 | 天津市中环天佳电子有限公司 | Nonmagnetic negative electricity laser printer ink powder |
| CN105929646A (en) * | 2016-06-16 | 2016-09-07 | 南京新天兴影像科技有限公司 | Two-component developing toner for high-speed xerographic printer and preparation method of two-component developing toner |
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Application publication date: 20140122 |