JP2016102904A5 - - Google Patents
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- Publication number
- JP2016102904A5 JP2016102904A5 JP2014241179A JP2014241179A JP2016102904A5 JP 2016102904 A5 JP2016102904 A5 JP 2016102904A5 JP 2014241179 A JP2014241179 A JP 2014241179A JP 2014241179 A JP2014241179 A JP 2014241179A JP 2016102904 A5 JP2016102904 A5 JP 2016102904A5
- Authority
- JP
- Japan
- Prior art keywords
- particles
- fine particles
- toner
- straight line
- line segment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000010419 fine particle Substances 0.000 claims 12
- 239000002245 particle Substances 0.000 claims 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 4
- 239000011164 primary particle Substances 0.000 claims 3
- 239000000377 silicon dioxide Substances 0.000 claims 3
- VEALVRVVWBQVSL-UHFFFAOYSA-N Strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 claims 1
- 239000011230 binding agent Substances 0.000 claims 1
- 239000003086 colorant Substances 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
Claims (5)
ｉ）一次粒子の個数平均粒径（Ｄ１）が８０ｎｍ以上２００ｎｍ以下であり、第２族元素のチタン酸塩微粒子Ａ
ｉｉ）一次粒子の個数平均粒径（Ｄ１）が８０ｎｍ以上２００ｎｍ以下であり、その粒径の半値幅が２５ｎｍ以下のシリカ微粒子Ｂ
ｉｉｉ）一次粒子の個数平均粒径（Ｄ１）５ｎｍ以上２０ｎｍ以下であるシリカ微粒子Ｃ
の３種以上を含有しており、
走査型電子顕微鏡を用いて撮影された該トナー表面の反射電子像における以下のように定義される４つの領域において、
それぞれの領域に占める該微粒子Ａの平均存在率が１．５面積％以上１５面積％以下であり、それぞれの領域に占める該微粒子Ｂの平均存在率が３．０面積％以上２５面積％以下であり、
該４つの領域における、該微粒子Ａの存在個数の変動係数が０．５以下
変動係数＝（微粒子の存在個数の標準偏差／微粒子の平均存在個数）
であることを特徴とするトナー。
領域の定義：トナーの反射電子像において、最大長を与える弦を線分Ａとし、該線分Ａと平行であり、該線分Ａと１．５μｍ離れた２本の直線を直線Ｂ及び直線Ｃとする。該線分Ａの中点を通り、該線分Ａと直交する直線を直線Ｄとし、該直線Ｄと平行であり、該直線Ｄと１．５μｍ離れた２本の直線を直線Ｅ及び直線Ｆとする。該線分Ａ、及び直線Ｂ、Ｃ、Ｄ、Ｅ及びＦで形成される辺の長さ１．５μｍの正方形である４つの領域。 A toner containing toner particles containing a binder resin and a colorant and inorganic fine particles, wherein the inorganic fine particles i) the number average particle diameter (D1) of the primary particles is 80 nm or more and 200 nm or less, and the second group Elemental titanate fine particles A
ii) Silica fine particles B having a number average particle diameter (D1) of primary particles of 80 nm to 200 nm and a half-value width of the particle diameter of 25 nm or less.
iii) Silica fine particles C having a number average particle diameter (D1) of primary particles of 5 nm to 20 nm
3 or more of
In four regions defined as follows in the backscattered electron image of the toner surface imaged using a scanning electron microscope:
The average abundance of the fine particles A in each region is 1.5 to 15 area%, and the average abundance of the fine particles B in each region is 3.0 to 25 area%. Yes,
The variation coefficient of the number of particles A present in the four regions is 0.5 or less. Variation coefficient = (standard deviation of the number of particles present / average number of particles present)
Toner characterized by being.
Definition of area: In a reflected electron image of toner, a string that gives the maximum length is a line segment A, and two straight lines that are parallel to the line segment A and 1.5 μm apart from the line segment A are a straight line B and a straight line C. A straight line passing through the midpoint of the line segment A and orthogonal to the line segment A is defined as a straight line D, parallel to the straight line D, and two straight lines separated from the straight line D by 1.5 μm are a straight line E and a straight line F. And Four regions that are squares with a side length of 1.5 μm formed by the line segment A and straight lines B, C, D, E, and F.
該シリカ微粒子Ｂ及びＣのトナー粒子への総固着率が７５質量％以上９５質量％以下
であることを特徴とする請求項１に記載のトナー。 The fixing rate of the group 2 element titanate fine particles A to the toner particles is 60% by mass or more and 85% by mass or less The total fixing rate of the silica fine particles B and C to the toner particles is 75% by mass or more and 95% by mass or less. The toner according to claim 1, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014241179A JP6497907B2 (en) | 2014-11-28 | 2014-11-28 | toner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014241179A JP6497907B2 (en) | 2014-11-28 | 2014-11-28 | toner |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2016102904A JP2016102904A (en) | 2016-06-02 |
| JP2016102904A5 true JP2016102904A5 (en) | 2017-12-28 |
| JP6497907B2 JP6497907B2 (en) | 2019-04-10 |
Family
ID=56089412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014241179A Active JP6497907B2 (en) | 2014-11-28 | 2014-11-28 | toner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6497907B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7207984B2 (en) | 2018-12-11 | 2023-01-18 | キヤノン株式会社 | toner |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6714348B2 (en) * | 2015-11-24 | 2020-06-24 | キヤノン株式会社 | Image forming method |
| JP2018045004A (en) * | 2016-09-13 | 2018-03-22 | キヤノン株式会社 | Toner and method for manufacturing toner |
| JP6873636B2 (en) * | 2016-09-13 | 2021-05-19 | キヤノン株式会社 | Toner manufacturing method |
| JP6929740B2 (en) * | 2017-08-30 | 2021-09-01 | キヤノン株式会社 | toner |
| JP7341781B2 (en) * | 2018-08-23 | 2023-09-11 | キヤノン株式会社 | Toner and image forming method |
| JP7216604B2 (en) * | 2019-04-22 | 2023-02-01 | キヤノン株式会社 | toner |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01196072A (en) * | 1988-02-01 | 1989-08-07 | Canon Inc | Toner for developing electrostatic charge image |
| JPH08211647A (en) * | 1995-02-08 | 1996-08-20 | Konica Corp | Electrostatic charge image developing toner, its production and image forming method by the toner |
| JP4370422B2 (en) * | 2004-06-01 | 2009-11-25 | 日本ゼオン株式会社 | Image forming method |
| JP2008304728A (en) * | 2007-06-08 | 2008-12-18 | Canon Inc | Magnetic toner and image forming method |
| JP5230297B2 (en) * | 2008-08-06 | 2013-07-10 | キヤノン株式会社 | toner |
| JP5305927B2 (en) * | 2009-01-09 | 2013-10-02 | キヤノン株式会社 | Toner cartridge |
| JP5984356B2 (en) * | 2010-11-10 | 2016-09-06 | キヤノン株式会社 | toner |
| JP2012150172A (en) * | 2011-01-17 | 2012-08-09 | Canon Inc | Toner |
| JP5436591B2 (en) * | 2012-02-01 | 2014-03-05 | キヤノン株式会社 | Magnetic toner |
| JP5442045B2 (en) * | 2012-02-01 | 2014-03-12 | キヤノン株式会社 | Magnetic toner |
| JP2014219450A (en) * | 2013-05-01 | 2014-11-20 | キヤノン株式会社 | Image forming method |
-
2014
- 2014-11-28 JP JP2014241179A patent/JP6497907B2/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7207984B2 (en) | 2018-12-11 | 2023-01-18 | キヤノン株式会社 | toner |
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