JP2019070736A5 - - Google Patents
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- JP2019070736A5 JP2019070736A5 JP2017196911A JP2017196911A JP2019070736A5 JP 2019070736 A5 JP2019070736 A5 JP 2019070736A5 JP 2017196911 A JP2017196911 A JP 2017196911A JP 2017196911 A JP2017196911 A JP 2017196911A JP 2019070736 A5 JP2019070736 A5 JP 2019070736A5
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- resin
- coating layer
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- monomer
- component developer
- Prior art date
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- 229920005989 resin Polymers 0.000 claims description 32
- 239000011347 resin Substances 0.000 claims description 32
- 239000011247 coating layer Substances 0.000 claims description 15
- 239000000178 monomer Substances 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 229920000642 polymer Polymers 0.000 claims description 6
- 239000002270 dispersing agent Substances 0.000 claims description 4
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 125000002723 alicyclic group Chemical group 0.000 claims description 2
- 229920006127 amorphous resin Polymers 0.000 claims description 2
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 230000003746 surface roughness Effects 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- KRJIBMFDBVWHBJ-UHFFFAOYSA-N cycloheptyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1CCCCCC1 KRJIBMFDBVWHBJ-UHFFFAOYSA-N 0.000 claims 1
- VLIHGIDKOZKVBS-UHFFFAOYSA-N cycloheptyl prop-2-enoate Chemical compound C=CC(=O)OC1CCCCCC1 VLIHGIDKOZKVBS-UHFFFAOYSA-N 0.000 claims 1
- OIWOHHBRDFKZNC-UHFFFAOYSA-N cyclohexyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1CCCCC1 OIWOHHBRDFKZNC-UHFFFAOYSA-N 0.000 claims 1
- KBLWLMPSVYBVDK-UHFFFAOYSA-N cyclohexyl prop-2-enoate Chemical compound C=CC(=O)OC1CCCCC1 KBLWLMPSVYBVDK-UHFFFAOYSA-N 0.000 claims 1
- VRFCNQCFVJBFMC-UHFFFAOYSA-N cyclooctyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1CCCCCCC1 VRFCNQCFVJBFMC-UHFFFAOYSA-N 0.000 claims 1
- JXVKENWQKWGKOL-UHFFFAOYSA-N cyclooctyl prop-2-enoate Chemical compound C=CC(=O)OC1CCCCCCC1 JXVKENWQKWGKOL-UHFFFAOYSA-N 0.000 claims 1
- 229930195733 hydrocarbon Natural products 0.000 claims 1
- 150000002430 hydrocarbons Chemical group 0.000 claims 1
Description
本発明は、トナーと、磁性キャリアを含む二成分系現像剤であって、
該トナーが、非晶性樹脂、ワックス及びワックス分散剤を含むトナー粒子を有するトナーであり、
該ワックス分散剤がポリオレフィンにスチレンアクリル系ポリマーがグラフト重合している重合体を有し、
該スチレンアクリル系ポリマーは、シクロアルキル（メタ）アクリレート由来のモノマーユニットを有し、
該磁性キャリアは、磁性キャリアコア、及び該磁性キャリアコアの表面の樹脂被覆層を有し、
該磁性キャリアの表面粗さＲａが、０．２２０μｍ以下であり、
該樹脂被覆層が、被覆用樹脂Ａ及び被覆用樹脂Ｂを含有し、
該被覆用樹脂Ａが、脂環式の炭化水素基を有する（メタ）アクリル酸エステルモノマーを含むモノマーの重合体であり、
該被覆用樹脂Ｂが、極性基を有する（メタ）アクリル系モノマーを含むモノマーの重合体であり、
該樹脂被覆層中の該被覆用樹脂Ａの含有量が、該樹脂被覆層中の樹脂成分の質量を基準として、１０質量％以上９０質量％以下であり、
該樹脂被覆層中の該被覆用樹脂Ｂの含有量が、該樹脂被覆層中の樹脂成分の質量を基準として、１０質量％以上９０質量％以下であることを特徴とする二成分系現像剤に関する。
The present invention is a two-component developer containing a toner and a magnetic carrier.
The toner is a toner having toner particles containing an amorphous resin, a wax, and a wax dispersant.
The wax dispersant has a polymer in which a styrene acrylic polymer is graft-polymerized on polyolefin.
The styrene acrylic polymer has a monomer unit derived from cycloalkyl (meth) acrylate and has a monomer unit .
The magnetic carrier has a magnetic carrier core and a resin coating layer on the surface of the magnetic carrier core.
The surface roughness Ra of the magnetic carrier is 0.220 μm or less.
The resin coating layer contains a coating resin A and a coating resin B.
The coating resin A is a polymer of a monomer containing a (meth) acrylic acid ester monomer having an alicyclic hydrocarbon group.
The coating resin B is a polymer of a monomer containing a (meth) acrylic monomer having a polar group.
The content of the coating resin A in the resin coating layer is 10% by mass or more and 90% by mass or less based on the mass of the resin component in the resin coating layer.
A two-component developer characterized in that the content of the coating resin B in the resin coating layer is 10% by mass or more and 90% by mass or less based on the mass of the resin component in the resin coating layer. Regarding.
Claims (5)
該トナーが、非晶性樹脂、ワックス及びワックス分散剤を含むトナー粒子を有するトナーであり、
該ワックス分散剤がポリオレフィンにスチレンアクリル系ポリマーがグラフト重合している重合体を有し、
該スチレンアクリル系ポリマーは、シクロアルキル（メタ）アクリレート由来のモノマーユニットを有し、
該磁性キャリアは、磁性キャリアコア、及び該磁性キャリアコアの表面の樹脂被覆層を有し、
該磁性キャリアの表面粗さＲａが、０．２２０μｍ以下であり、
該樹脂被覆層が、被覆用樹脂Ａ及び被覆用樹脂Ｂを含有し、
該被覆用樹脂Ａが、脂環式の炭化水素基を有する（メタ）アクリル酸エステルモノマーを含むモノマーの重合体であり、
該被覆用樹脂Ｂが、極性基を有する（メタ）アクリル系モノマーを含むモノマーの重合体であり、
該樹脂被覆層中の該被覆用樹脂Ａの含有量が、該樹脂被覆層中の樹脂成分の質量を基準として、１０質量％以上９０質量％以下であり、
該樹脂被覆層中の該被覆用樹脂Ｂの含有量が、該樹脂被覆層中の樹脂成分の質量を基準として、１０質量％以上９０質量％以下であることを特徴とする二成分系現像剤。 A two-component developer containing toner and a magnetic carrier.
The toner is a toner having toner particles containing an amorphous resin, a wax, and a wax dispersant.
The wax dispersant has a polymer in which a styrene acrylic polymer is graft-polymerized on polyolefin.
The styrene acrylic polymer has a monomer unit derived from cycloalkyl (meth) acrylate and has a monomer unit .
The magnetic carrier has a magnetic carrier core and a resin coating layer on the surface of the magnetic carrier core.
The surface roughness Ra of the magnetic carrier is 0.220 μm or less.
The resin coating layer contains a coating resin A and a coating resin B.
The coating resin A is a polymer of a monomer containing a (meth) acrylic acid ester monomer having an alicyclic hydrocarbon group.
The coating resin B is a polymer of a monomer containing a (meth) acrylic monomer having a polar group.
The content of the coating resin A in the resin coating layer is 10% by mass or more and 90% by mass or less based on the mass of the resin component in the resin coating layer.
A two-component developer characterized in that the content of the coating resin B in the resin coating layer is 10% by mass or more and 90% by mass or less based on the mass of the resin component in the resin coating layer. ..
前記樹脂被覆層の７０℃以上１００℃以下の損失弾性率（Ｇ”）の最小値が、１．０×１０６Ｐａ以上１．０×１０８Ｐａ以下である請求項１又は２に記載の二成分系現像剤。 The minimum value of the storage elastic modulus (G') of the resin coating layer at 70 ° C. or higher and 100 ° C. or lower is 7.0 × 10 7 Pa or more and 1.0 × 10 9 Pa or less.
The first or second claim, wherein the minimum value of the elastic modulus (G ") of the resin coating layer at 70 ° C. or higher and 100 ° C. or lower is 1.0 × 10 6 Pa or more and 1.0 × 10 8 Pa or less. Two-component developer.
来するモノマーユニットである請求項１〜３のいずれか一項に記載の二成分系現像剤。 The monomer units, cyclohexyl acrylate, cycloheptyl acrylate, cyclooctyl acrylate, cyclohexyl methacrylate, cycloheptyl methacrylate, claim 1 is a monomer unit derived from at least one member selected from the group consisting of cyclooctyl methacrylate The two-component developer according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017196911A JP7034658B2 (en) | 2017-10-10 | 2017-10-10 | Two-component developer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017196911A JP7034658B2 (en) | 2017-10-10 | 2017-10-10 | Two-component developer |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2019070736A JP2019070736A (en) | 2019-05-09 |
| JP2019070736A5 true JP2019070736A5 (en) | 2020-11-19 |
| JP7034658B2 JP7034658B2 (en) | 2022-03-14 |
Family
ID=66440665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2017196911A Active JP7034658B2 (en) | 2017-10-10 | 2017-10-10 | Two-component developer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP7034658B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7254612B2 (en) * | 2019-05-14 | 2023-04-10 | キヤノン株式会社 | Two-component developer, replenishment developer, and image forming method |
| JP7313931B2 (en) * | 2019-06-27 | 2023-07-25 | キヤノン株式会社 | toner |
| JP7391572B2 (en) * | 2019-08-29 | 2023-12-05 | キヤノン株式会社 | Toner and toner manufacturing method |
| JP7523918B2 (en) * | 2020-02-06 | 2024-07-29 | キヤノン株式会社 | Magnetic carrier and two-component developer |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010079258A (en) * | 2008-09-01 | 2010-04-08 | Konica Minolta Business Technologies Inc | Electrophotographic carrier, electrophotographic developer |
| JP6632249B2 (en) * | 2014-08-26 | 2020-01-22 | キヤノン株式会社 | Magnetic carrier and two-component developer |
| JP6584225B2 (en) * | 2015-08-25 | 2019-10-02 | キヤノン株式会社 | Magnetic carrier, two-component developer, replenishment developer, and image forming method |
| JP6478952B2 (en) * | 2015-08-25 | 2019-03-06 | キヤノン株式会社 | Wax dispersant for toner and toner |
| JP6659142B2 (en) * | 2016-01-08 | 2020-03-04 | キヤノン株式会社 | Magnetic carrier, two-component developer, replenishment developer, and image forming method |
| JP6403816B2 (en) * | 2016-02-08 | 2018-10-10 | キヤノン株式会社 | Magnetic carrier, two-component developer, replenishment developer, and image forming method |
| US10012918B2 (en) * | 2016-02-19 | 2018-07-03 | Canon Kabushiki Kaisha | Toner and method for producing toner |
| JP6700878B2 (en) * | 2016-03-16 | 2020-05-27 | キヤノン株式会社 | Toner and method of manufacturing toner |
-
2017
- 2017-10-10 JP JP2017196911A patent/JP7034658B2/en active Active
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