JP2011033916A5 - - Google Patents

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Publication number
JP2011033916A5
JP2011033916A5 JP2009181305A JP2009181305A JP2011033916A5 JP 2011033916 A5 JP2011033916 A5 JP 2011033916A5 JP 2009181305 A JP2009181305 A JP 2009181305A JP 2009181305 A JP2009181305 A JP 2009181305A JP 2011033916 A5 JP2011033916 A5 JP 2011033916A5
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Japan
Prior art keywords
toner
polymerizable monomer
particles
less
suspension
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JP2009181305A
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Japanese (ja)
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JP5500902B2 (en
JP2011033916A (en
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Priority to JP2009181305A priority Critical patent/JP5500902B2/en
Priority claimed from JP2009181305A external-priority patent/JP5500902B2/en
Publication of JP2011033916A publication Critical patent/JP2011033916A/en
Publication of JP2011033916A5 publication Critical patent/JP2011033916A5/ja
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Description

上記目的を達成するため、トナー粒子を有するトナーであって、該トナー粒子は、コア粒子と、該コア粒子の表面に固着してなる、樹脂微粒子からなる粒塊とを有し、該コア粒子の表面が部分的に露出していることを特徴とするものである。 In order to achieve the above object, a toner having toner particles , the toner particles having core particles and agglomerates made of resin fine particles fixed to the surface of the core particles, the core particles The surface of is partially exposed .

Claims (7)

トナー粒子を有するトナーであって、
該トナー粒子は、
コア粒子と、
該コア粒子の表面に固着してなる、樹脂微粒子からなる粒塊とを有し、
該コア粒子の表面が部分的に露出していることを特徴とするトナー。 A toner having toner particles,
The toner particles are
Core particles,
Having agglomerates made of resin fine particles, fixed to the surface of the core particles,
A toner characterized in that a surface of the core particle is partially exposed . 貯蔵温度５０℃で７日間放置した後の前記トナー粒子を用いたメタノール濡れ性試験において、透過率５０％を示すメタノール濃度が４０％以上７０％以下である請求項１に記載のトナー。 Wherein after leaving storage temperature 50 ° C. for 7 days toner particles methanol wettability test odor using Te, toner according to 請 Motomeko 1 methanol concentration Ru der less 70% 40% showing transmittance of 50% . 前記トナー粒子の平均円形度が０．９６５以上０．９９５以下であり、且つＢＥＴ比表面積が１．５０ｍ２／ｇ以上３．５０ｍ２／ｇ以下である請求項１または２に記載のトナー。 The average circularity of the toner particles is 0.965 or more 0.995 or less, and a BET specific surface area according to 1.50 m 2 / g Ru der least 3.50 m 2 / g or less 請 Motomeko 1 or 2 toner. 前記トナー粒子を５分間超音波処理した時の粒度分布における２μｍ未満の個数％を［ｕＡ］、その後更に１０分間超音波処理した時の粒度分布における２μｍ未満の個数％を［ｕＢ］としたとき、増加率［ｕＢ］／［ｕＡ］が１．０以上８.０未満である請求項１
乃至３いずれか１項に記載のトナー。 When the toner particles are sonicated for 5 minutes, the number% of less than 2 μm in the particle size distribution is [uA], and then the number% of the particle size distribution when further sonicated for 10 minutes is [uB]. increase rate [uB] / [uA] is Ru 8.0 less der 1.0 or more 請 Motomeko 1
4. The toner according to any one of items 3 to 3. 前記トナー粒子は、下記の工程（ｉ）および（ｉｉ）を経て形成されてなり、  The toner particles are formed through the following steps (i) and (ii):
（ｉ）重合性単量体、着色剤及び離型剤を含有する重合性単量体組成物を、水系媒体中で懸濁させて造粒する工程、  (I) a step of suspending a polymerizable monomer composition containing a polymerizable monomer, a colorant and a release agent in an aqueous medium and granulating the composition;
（ｉｉ）造粒後の懸濁液を加熱して該重合性単量体を重合させる工程、  (Ii) heating the granulated suspension to polymerize the polymerizable monomer;
そして、該工程（ｉｉ）は、該重合性単量体の重合途中に、樹脂微粒子を該懸濁液に添加する工程を含む請求項１乃至４のいずれか一項に記載のトナー。The toner according to any one of claims 1 to 4, wherein the step (ii) includes a step of adding resin fine particles to the suspension during the polymerization of the polymerizable monomer. 前記工程（ｉｉ）において、該重合性単量体の重合転化率が５０％以上になった時点で前記樹脂微粒子を該懸濁液に添加する請求項５に記載のトナー。 Wherein in the step (ii), toner according to claim 5 in which the polymerization conversion of the polymerizable monomer is added to the resin fine particles as it becomes 50% or more to the suspension. （ｉ）重合性単量体、着色剤及び離型剤を含有する重合性単量体組成物を、水系媒体中で懸濁させて造粒する工程、および、(I) a step of suspending and granulating a polymerizable monomer composition containing a polymerizable monomer, a colorant and a release agent in an aqueous medium; and
（ｉｉ）造粒後の懸濁液を加熱して該重合性単量体を重合させてトナー粒子を製造する工程、を有し、  (Ii) heating the granulated suspension to polymerize the polymerizable monomer to produce toner particles,
該工程（ｉｉ）は、該重合性単量体の重合途中に、樹脂微粒子を該懸濁液に添加する工程を含むことを特徴とするトナーの製造方法。The step (ii) includes a step of adding resin fine particles to the suspension during the polymerization of the polymerizable monomer.
JP2009181305A 2009-08-04 2009-08-04 toner Active JP5500902B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009181305A JP5500902B2 (en) 2009-08-04 2009-08-04 toner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009181305A JP5500902B2 (en) 2009-08-04 2009-08-04 toner

Publications (3)

Publication Number Publication Date
JP2011033916A JP2011033916A (en) 2011-02-17
JP2011033916A5 true JP2011033916A5 (en) 2012-09-20
JP5500902B2 JP5500902B2 (en) 2014-05-21

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ID=43763033

Family Applications (1)

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JP2009181305A Active JP5500902B2 (en) 2009-08-04 2009-08-04 toner

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JP (1) JP5500902B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015087597A (en) * 2013-10-31 2015-05-07 京セラドキュメントソリューションズ株式会社 Toner for electrostatic latent image development
JP6471460B2 (en) 2014-11-04 2019-02-20 株式会社リコー Toner and toner production method
JP6468232B2 (en) * 2016-03-31 2019-02-13 京セラドキュメントソリューションズ株式会社 Toner for electrostatic latent image development
JP6504132B2 (en) * 2016-08-24 2019-04-24 京セラドキュメントソリューションズ株式会社 Toner for developing electrostatic latent image and method for producing the same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4217293B2 (en) * 1997-04-02 2009-01-28 キヤノン株式会社 Toner for developing electrostatic image, image forming method and developing unit
JP3457857B2 (en) * 1997-09-22 2003-10-20 シャープ株式会社 Electrophotographic toner
JP4262161B2 (en) * 2003-08-01 2009-05-13 キヤノン株式会社 toner
JP4137001B2 (en) * 2004-04-28 2008-08-20 キヤノン株式会社 Replenishment developer kit and image forming apparatus using the same
JP2007279328A (en) * 2006-04-05 2007-10-25 Kyocera Chemical Corp Method for manufacturing suspension polymerization toner particle and toner particle
JP2008257095A (en) * 2007-04-09 2008-10-23 Kyocera Mita Corp Developer and image forming method

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