JP2015007730A5 - - Google Patents
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- JP2015007730A5 JP2015007730A5 JP2013133451A JP2013133451A JP2015007730A5 JP 2015007730 A5 JP2015007730 A5 JP 2015007730A5 JP 2013133451 A JP2013133451 A JP 2013133451A JP 2013133451 A JP2013133451 A JP 2013133451A JP 2015007730 A5 JP2015007730 A5 JP 2015007730A5
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- JP
- Japan
- Prior art keywords
- magnetic
- mass
- iron oxide
- silane compound
- magnetic toner
- Prior art date
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- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 10
- 229910000460 iron oxide Inorganic materials 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000000696 magnetic material Substances 0.000 claims description 7
- 229910000077 silane Inorganic materials 0.000 claims description 7
- -1 silane compound Chemical class 0.000 claims description 7
- 239000000178 monomer Substances 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- 229920001225 Polyester resin Polymers 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 238000004090 dissolution Methods 0.000 claims description 2
- 239000011361 granulated particle Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000004645 polyester resin Substances 0.000 claims description 2
- 230000000379 polymerizing Effects 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 4
- 238000009792 diffusion process Methods 0.000 claims 3
- 239000010419 fine particle Substances 0.000 claims 2
- 238000006460 hydrolysis reaction Methods 0.000 claims 2
- 239000000377 silicon dioxide Substances 0.000 claims 2
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 claims 1
- 125000004432 carbon atoms Chemical group C* 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 150000002430 hydrocarbons Chemical group 0.000 claims 1
Description
本発明は、結着樹脂及び磁性体を含有する磁性トナー粒子と、無機微粉体を有する磁性トナーの製造方法であって、
前記製造方法が、重合性単量体、酸価０．１ｍｇＫＯＨ／ｇ以上５ｍｇＫＯＨ／ｇ以下であるポリエステル系樹脂及び磁性体を含有する単量体組成物を水系媒体中に分散して造粒する工程、および、造粒された粒子中に含有される重合性単量体を重合する工程を有し、
該磁性体は、磁性酸化鉄をシラン化合物により表面処理した処理磁性体であり、
該磁性酸化鉄は、表面に珪素元素を有しており、前記磁性酸化鉄を鉄元素の溶解率が５質量％になるまでに溶解したときに溶出する珪素の量が、磁性酸化鉄を基準として０．０５質量％以上０．５０質量％以下であり、
該処理磁性体は、スチレンで洗浄した後の該シラン化合物に由来する残存炭素量が、磁性酸化鉄を基準として０．４０質量％以上１．２質量％以下であることを特徴とする磁性トナーの製造方法に関する。
The present invention is a method for producing a magnetic toner having a magnetic toner particle containing a binder resin and a magnetic material, and an inorganic fine powder,
In the production method , a monomer composition containing a polymerizable monomer, a polyester resin having an acid value of 0.1 mgKOH / g or more and 5 mgKOH / g or less and a magnetic material is dispersed in an aqueous medium and granulated . step, and has a step of polymerizing the polymerizable monomer contained in the granulated particles,
The magnetic body is a treated magnetic body obtained by surface-treating magnetic iron oxide with a silane compound,
The magnetic iron oxide has a silicon element on its surface, and the amount of silicon eluted when the magnetic iron oxide is dissolved until the dissolution rate of the iron element reaches 5% by mass is based on the magnetic iron oxide. As 0.05 mass% or more and 0.50 mass% or less,
The treated magnetic material is characterized in that the amount of residual carbon derived from the silane compound after washing with styrene is 0.40% by mass or more and 1.2% by mass or less based on magnetic iron oxide. It relates to the manufacturing method.
Claims (5)
前記製造方法が、重合性単量体、酸価０．１ｍｇＫＯＨ／ｇ以上５ｍｇＫＯＨ／ｇ以下であるポリエステル系樹脂及び磁性体を含有する単量体組成物を水系媒体中に分散して造粒する工程、および、造粒された粒子中に含有される重合性単量体を重合する工程を有し、
該磁性体は、磁性酸化鉄をシラン化合物により表面処理した処理磁性体であり、
該磁性酸化鉄は、表面に珪素元素を有しており、前記磁性酸化鉄を鉄元素の溶解率が５質量％になるまでに溶解したときに溶出する珪素の量が、磁性酸化鉄を基準として０．０５質量％以上０．５０質量％以下であり、
該処理磁性体は、スチレンで洗浄した後の該シラン化合物に由来する残存炭素量が、磁性酸化鉄を基準として０．４０質量％以上１．２質量％以下であることを特徴とする磁性トナーの製造方法。 A magnetic toner particle containing a binder resin and a magnetic material, and a method for producing a magnetic toner having an inorganic fine powder,
In the production method , a monomer composition containing a polymerizable monomer, a polyester resin having an acid value of 0.1 mgKOH / g or more and 5 mgKOH / g or less and a magnetic material is dispersed in an aqueous medium and granulated . step, and has a step of polymerizing the polymerizable monomer contained in the granulated particles,
The magnetic body is a treated magnetic body obtained by surface-treating magnetic iron oxide with a silane compound,
The magnetic iron oxide has a silicon element on its surface, and the amount of silicon eluted when the magnetic iron oxide is dissolved until the dissolution rate of the iron element reaches 5% by mass is based on the magnetic iron oxide. As 0.05 mass% or more and 0.50 mass% or less,
The treated magnetic material is characterized in that the amount of residual carbon derived from the silane compound after washing with styrene is 0.40% by mass or more and 1.2% by mass or less based on magnetic iron oxide. Manufacturing method.
（式１）拡散指数＝Ｘ１／Ｘ２
（式２）拡散指数≧−０．００４２×Ｘ１＋０．６２ The coverage X1 with silica fine particles on the surface of the magnetic toner determined by an X-ray photoelectron spectrometer (ESCA) is 40.0 area% or more and 75.0 area% or less, and the theoretical coverage with the silica fine particles is X2. 4. The method for producing a magnetic toner according to claim 1, wherein a diffusion index represented by the following formula 1 satisfies the following formula 2:
(Formula 1) Diffusion index = X1 / X2
(Expression 2) Diffusion index ≧ −0.0042 × X1 + 0.62
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013133451A JP6108978B2 (en) | 2013-06-26 | 2013-06-26 | Method for producing magnetic toner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013133451A JP6108978B2 (en) | 2013-06-26 | 2013-06-26 | Method for producing magnetic toner |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2015007730A JP2015007730A (en) | 2015-01-15 |
| JP2015007730A5 true JP2015007730A5 (en) | 2016-08-04 |
| JP6108978B2 JP6108978B2 (en) | 2017-04-05 |
Family
ID=52338038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013133451A Active JP6108978B2 (en) | 2013-06-26 | 2013-06-26 | Method for producing magnetic toner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6108978B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6385140B2 (en) * | 2014-05-30 | 2018-09-05 | キヤノン株式会社 | toner |
| JP6335656B2 (en) * | 2014-05-30 | 2018-05-30 | キヤノン株式会社 | Magnetic toner |
| JP6355435B2 (en) * | 2014-05-30 | 2018-07-11 | キヤノン株式会社 | toner |
| JP6456226B2 (en) * | 2015-04-08 | 2019-01-23 | キヤノン株式会社 | Toner and toner production method |
| JP6525739B2 (en) * | 2015-05-29 | 2019-06-05 | キヤノン株式会社 | Magnetic toner |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007071993A (en) * | 2005-09-05 | 2007-03-22 | Canon Inc | Toner |
| JP2008015248A (en) * | 2006-07-06 | 2008-01-24 | Canon Inc | Magnetic toner |
| JP5422904B2 (en) * | 2007-04-09 | 2014-02-19 | 戸田工業株式会社 | Hydrophobic magnetic iron oxide particle powder for magnetic toner and method for producing the same |
| JP2009288394A (en) * | 2008-05-28 | 2009-12-10 | Canon Inc | Image forming method, fixing method and magnetic toner |
| JP5451161B2 (en) * | 2009-04-15 | 2014-03-26 | キヤノン株式会社 | Method for producing magnetic toner |
| JP5473725B2 (en) * | 2009-04-15 | 2014-04-16 | キヤノン株式会社 | Magnetic toner |
| US8426094B2 (en) * | 2010-05-31 | 2013-04-23 | Canon Kabushiki Kaisha | Magnetic toner |
| CN102934033B (en) * | 2010-05-31 | 2014-11-05 | 佳能株式会社 | Magnetic toner |
-
2013
- 2013-06-26 JP JP2013133451A patent/JP6108978B2/en active Active
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