JP2011128434A5 - - Google Patents

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Publication number
JP2011128434A5
JP2011128434A5 JP2009287861A JP2009287861A JP2011128434A5 JP 2011128434 A5 JP2011128434 A5 JP 2011128434A5 JP 2009287861 A JP2009287861 A JP 2009287861A JP 2009287861 A JP2009287861 A JP 2009287861A JP 2011128434 A5 JP2011128434 A5 JP 2011128434A5
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JP
Japan
Prior art keywords
dispersion
crystalline polyester
resin particles
producing
electrophotographic toner
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JP2009287861A
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Japanese (ja)
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JP5325757B2 (en
JP2011128434A (en
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Priority to JP2009287861A priority Critical patent/JP5325757B2/en
Priority claimed from JP2009287861A external-priority patent/JP5325757B2/en
Priority to DE112010004875.4T priority patent/DE112010004875B9/en
Priority to US13/516,990 priority patent/US8632936B2/en
Priority to PCT/JP2010/072790 priority patent/WO2011074674A1/en
Publication of JP2011128434A publication Critical patent/JP2011128434A/en
Publication of JP2011128434A5 publication Critical patent/JP2011128434A5/ja
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Publication of JP5325757B2 publication Critical patent/JP5325757B2/en
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Claims (5)

（工程１）１〜５０重量％の結晶性ポリエステルと非晶質ポリエステルとを含有する樹脂を含み、体積中位粒径（Ｄ５０）が０．０２〜２μｍである樹脂粒子の分散液を下記式１を満たす温度Ｔで１時間以上保持することにより、熱処理樹脂粒子の分散液を得る工程、
（結晶性ポリエステルの融点−３５）（℃）＜Ｔ＜結晶性ポリエステルの融点（℃）・・・（式１）
（工程２）工程１で得られた熱処理樹脂粒子の分散液中の熱処理樹脂粒子を凝集させて凝集粒子の分散液を得る工程、及び
（工程３）工程２で得られた凝集粒子の分散液中の凝集粒子を合一させる工程、
を有する、電子写真用トナーの製造方法。 (Step 1) A dispersion of resin particles containing a resin containing 1 to 50% by weight of a crystalline polyester and an amorphous polyester and having a volume median particle size (D50) of 0.02 to 2 μm is represented by the following formula: A step of obtaining a dispersion of heat-treated resin particles by holding at a temperature T satisfying 1 for 1 hour or more,
(Melting point of crystalline polyester−35) (° C.) <T <Melting point of crystalline polyester (° C.) (Formula 1)
(Step 2) A step of aggregating the heat treated resin particles in the dispersion of the heat treated resin particles obtained in Step 1 to obtain a dispersion of the aggregated particles, and (Step 3) a dispersion of the aggregated particles obtained in Step 2. A step of coalescing the aggregated particles therein,
A method for producing an electrophotographic toner comprising: 更に、工程２で得られた凝集粒子の分散液に、非晶質ポリエステルを７０重量％以上含有する樹脂微粒子の分散液を添加して樹脂微粒子付着凝集粒子を得る工程２ａを有する、請求項１記載の電子写真用トナーの製造方法。   Furthermore, it has the process 2a which adds the dispersion liquid of the resin fine particle which contains 70 weight% or more of amorphous polyester to the dispersion liquid of the aggregated particle obtained at the process 2, and obtains the resin fine particle adhesion aggregate particle. A method for producing the electrophotographic toner according to claim. 工程３における凝集粒子の合一を、工程１で使用した結晶性ポリエステルの融点以下の温度で行う、請求項１又は２に記載の電子写真用トナーの製造方法。 The method for producing an electrophotographic toner according to claim 1 or 2, wherein coalescence of the aggregated particles in Step 3 is performed at a temperature not higher than the melting point of the crystalline polyester used in Step 1. 工程１における、結晶性ポリエステルと非晶質ポリエステルを含有する樹脂粒子中の結晶性ポリエステルと非晶質ポリエステルの含有比率（結晶性ポリエステル／非晶質ポリエステル）が、重量比で５／９５〜５０／５０である、請求項１〜３のいずれかに記載の電子写真用トナーの製造方法。   The content ratio (crystalline polyester / amorphous polyester) of the crystalline polyester and the amorphous polyester in the resin particles containing the crystalline polyester and the amorphous polyester in Step 1 is 5/95 to 50 by weight ratio. The method for producing an electrophotographic toner according to claim 1, which is / 50. 樹脂粒子が、着色剤を含有する着色剤含有樹脂粒子である、請求項１〜４のいずれかに記載の電子写真用トナーの製造方法。  The method for producing an electrophotographic toner according to claim 1, wherein the resin particles are colorant-containing resin particles containing a colorant.
JP2009287861A 2009-12-18 2009-12-18 Method for producing toner for electrophotography Active JP5325757B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2009287861A JP5325757B2 (en) 2009-12-18 2009-12-18 Method for producing toner for electrophotography
DE112010004875.4T DE112010004875B9 (en) 2009-12-18 2010-12-17 Method of making electrophotographic toner
US13/516,990 US8632936B2 (en) 2009-12-18 2010-12-17 Process for production of electrophotographic toner
PCT/JP2010/072790 WO2011074674A1 (en) 2009-12-18 2010-12-17 Process for production of electrophotographic tonor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009287861A JP5325757B2 (en) 2009-12-18 2009-12-18 Method for producing toner for electrophotography

Publications (3)

Publication Number Publication Date
JP2011128434A JP2011128434A (en) 2011-06-30
JP2011128434A5 true JP2011128434A5 (en) 2012-11-22
JP5325757B2 JP5325757B2 (en) 2013-10-23

Family

ID=44291089

Family Applications (1)

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JP2009287861A Active JP5325757B2 (en) 2009-12-18 2009-12-18 Method for producing toner for electrophotography

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JP (1) JP5325757B2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011013315B4 (en) * 2010-03-08 2024-05-08 Kao Corporation Process for producing a resin binder for toner, resin binder obtainable thereby, process for producing a toner and toner obtainable thereby
JP5859768B2 (en) * 2011-07-25 2016-02-16 花王株式会社 Method for producing toner for developing electrostatic image
JP5482951B2 (en) * 2012-09-18 2014-05-07 株式会社リコー Toner for electrostatic image formation, developer, process cartridge, image forming apparatus
JP6194222B2 (en) * 2013-10-17 2017-09-06 花王株式会社 Method for producing toner for developing electrostatic image
JP6794788B2 (en) * 2016-11-08 2020-12-02 コニカミノルタ株式会社 Toner manufacturing method
JP6812756B2 (en) * 2016-11-08 2021-01-13 コニカミノルタ株式会社 Toner manufacturing method
JP6922190B2 (en) * 2016-11-08 2021-08-18 コニカミノルタ株式会社 Toner manufacturing method
JP6855923B2 (en) * 2017-05-22 2021-04-07 コニカミノルタ株式会社 Manufacturing method of toner for static charge image development
JP2019061033A (en) * 2017-09-26 2019-04-18 富士ゼロックス株式会社 Toner for electrostatic charge image development, method for manufacturing toner for electrostatic charge image development, and image forming apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5593807A (en) * 1996-05-10 1997-01-14 Xerox Corporation Toner processes using sodium sulfonated polyester resins
JP4192717B2 (en) * 2002-11-29 2008-12-10 富士ゼロックス株式会社 Toner for developing electrostatic image, electrostatic image developer and image forming method using the same
JP4797428B2 (en) * 2005-04-22 2011-10-19 富士ゼロックス株式会社 Toner for electrostatic charge development, method for producing toner for electrostatic charge development, resin particle dispersion used for preparation of toner for electrostatic charge development, developer for developing electrostatic charge image, and image forming method
JP2009223143A (en) * 2008-03-18 2009-10-01 Fuji Xerox Co Ltd Toner for electrostatic charge image development, method of manufacturing toner for electrostatic charge image development, developer for electrostatic charge image development, and image forming apparatus

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