JP2016142760A5 - - Google Patents

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JP2016142760A5
JP2016142760A5 JP2015016037A JP2015016037A JP2016142760A5 JP 2016142760 A5 JP2016142760 A5 JP 2016142760A5 JP 2015016037 A JP2015016037 A JP 2015016037A JP 2015016037 A JP2015016037 A JP 2015016037A JP 2016142760 A5 JP2016142760 A5 JP 2016142760A5
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Japan
Prior art keywords
toner
inorganic fine
polyester resin
toner according
particles
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JP2015016037A
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Japanese (ja)
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JP2016142760A (en
JP6478664B2 (en
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Claims (7)

結着樹脂を含有するコアにポリエステル樹脂Aを含有するシェルを形成したコアシェル構造のトナー粒子と、無機微粒子Aとを有するトナーであり、
前記トナー粒子が、前記結着樹脂100.0質量部に対して、前記ポリエステル樹脂Aを1.0質量部以上20.0質量部以下含有し、
前記ポリエステル樹脂Aは、式(1)で示されるイソソルビドユニットを、全モノマーユニットを基準として0.10mol%以上20.00mol%以下含有し、
前記無機微粒子Aは、走査型電子顕微鏡(SEM)により観察される下記式(2)で示される稠密度の平均値が、0.40以上0.80以下であることを特徴とするトナー。
Figure 2016142760

稠密度=無機微粒子の面積/無機微粒子の包絡線により囲まれた部分の面積 …(2)
A toner having a core-shell structure toner particle in which a core containing a polyester resin A is formed on a core containing a binder resin, and inorganic fine particles A;
The toner particles contain 1.0 to 20.0 parts by mass of the polyester resin A with respect to 100.0 parts by mass of the binder resin.
The polyester resin A contains 0.10 mol% or more and 20.00 mol% or less of the isosorbide unit represented by the formula (1) based on the total monomer units,
The inorganic fine particle A is a toner characterized in that an average value of a dense density represented by the following formula (2) observed by a scanning electron microscope (SEM) is 0.40 to 0.80.
Figure 2016142760

Dense density = area of the inorganic fine particles / area of the portion surrounded by the envelope of the inorganic fine particles (2)
前記ポリエステル樹脂Aの25℃、10000Hzにおける誘電正接が、0.0070以上0.0140以下である請求項1に記載のトナー。   The toner according to claim 1, wherein a dielectric loss tangent of the polyester resin A at 25 ° C. and 10,000 Hz is 0.0070 or more and 0.0140 or less. 前記ポリエステル樹脂Aの酸価が、0.5mgKOH/g以上25.0mgKOH/g以下である請求項1又は2に記載のトナー。   The toner according to claim 1, wherein the acid value of the polyester resin A is 0.5 mgKOH / g or more and 25.0 mgKOH / g or less. 前記無機微粒子Aの最小フェレ径が50nm以上300nm以下である請求項1〜3のいずれか一項に記載のトナー。   The toner according to claim 1, wherein the inorganic fine particle A has a minimum ferret diameter of 50 nm to 300 nm. 前記結着樹脂がスチレンアクリル系樹脂である請求項1〜4のいずれか一項に記載のトナー。   The toner according to claim 1, wherein the binder resin is a styrene acrylic resin. 前記トナー粒子が、懸濁重合トナー粒子である請求項1〜のいずれか一項に記載のト
ナー。
The toner particles The toner according to any one of claims 1 to 5, which is a suspension polymerization toner particles.
感光体を帯電する帯電工程と、帯電された前記感光体を露光して静電潜像を形成する露光工程と、前記静電潜像をトナーで現像してトナー像を形成する現像工程と、前記トナー像を転写材に転写する転写工程と、転写後の前記感光体の表面に残留する残留トナーを除去するクリーニング工程と、
を有する画像形成方法であって、
前記トナーが請求項1〜のいずれか一項に記載のトナーである画像形成方法。
A charging step for charging the photosensitive member; an exposure step for exposing the charged photosensitive member to form an electrostatic latent image; and a developing step for developing the electrostatic latent image with toner to form a toner image; A transfer step of transferring the toner image to a transfer material, a cleaning step of removing residual toner remaining on the surface of the photoreceptor after transfer,
An image forming method comprising:
The image forming method wherein the toner is a toner according to any one of claims 1-6.
JP2015016037A 2015-01-29 2015-01-29 Toner, toner manufacturing method and image forming method Active JP6478664B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2015016037A JP6478664B2 (en) 2015-01-29 2015-01-29 Toner, toner manufacturing method and image forming method

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Application Number Priority Date Filing Date Title
JP2015016037A JP6478664B2 (en) 2015-01-29 2015-01-29 Toner, toner manufacturing method and image forming method

Publications (3)

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JP2016142760A JP2016142760A (en) 2016-08-08
JP2016142760A5 true JP2016142760A5 (en) 2018-03-08
JP6478664B2 JP6478664B2 (en) 2019-03-06

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6521782B2 (en) * 2015-07-30 2019-05-29 キヤノン株式会社 toner
JP6570377B2 (en) * 2015-08-28 2019-09-04 キヤノン株式会社 toner
JP6900279B2 (en) * 2016-09-13 2021-07-07 キヤノン株式会社 Toner and toner manufacturing method
JP2018115258A (en) * 2017-01-18 2018-07-26 三菱ケミカル株式会社 Polyester resin
JP7562343B2 (en) 2020-09-09 2024-10-07 キヤノン株式会社 toner
JP2023016430A (en) 2021-07-21 2023-02-02 キヤノン株式会社 toner

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101296923B1 (en) * 2005-03-18 2013-08-14 바텔리 메모리얼 인스티튜트 Toner
JP5418085B2 (en) * 2009-09-08 2014-02-19 株式会社リコー Toner, two-component developer, process cartridge, image forming apparatus, and image forming method
JP2011232665A (en) * 2010-04-30 2011-11-17 Mitsubishi Rayon Co Ltd Method for producing polyester resin composition for toner, polyester resin composition for toner, and toner
JP2012073304A (en) * 2010-09-28 2012-04-12 Tomoegawa Paper Co Ltd Electrophotographic toner
JP5645583B2 (en) * 2010-10-08 2014-12-24 キヤノン株式会社 toner
JP2012159630A (en) * 2011-01-31 2012-08-23 Canon Inc Developing device
JP5776351B2 (en) * 2011-06-15 2015-09-09 コニカミノルタ株式会社 Toner for electrostatic image development
JP6107656B2 (en) * 2012-06-13 2017-04-05 三菱レイヨン株式会社 Polyester resin for toner, method for producing the same, and toner
US8942587B2 (en) * 2012-12-21 2015-01-27 Fuji Xerox Co., Ltd. Electrostatic image developer and image forming apparatus

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