JP2011081241A5 - - Google Patents

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JP2011081241A5
JP2011081241A5 JP2009234200A JP2009234200A JP2011081241A5 JP 2011081241 A5 JP2011081241 A5 JP 2011081241A5 JP 2009234200 A JP2009234200 A JP 2009234200A JP 2009234200 A JP2009234200 A JP 2009234200A JP 2011081241 A5 JP2011081241 A5 JP 2011081241A5
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resin
dispersion
particle dispersion
fine particle
particles
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JP2009234200A
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JP2011081241A (en
JP5513060B2 (en
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Claims (6)

（１）樹脂粒子分散液中の樹脂粒子を凝集させて、凝集粒子の分散液を得る工程、
（２）工程（１）で得られた凝集粒子の分散液に、樹脂微粒子分散液を添加して、樹脂微粒子付着凝集粒子の分散液を得る工程、及び
（３）工程（２）で得られた樹脂微粒子付着凝集粒子の分散液中の樹脂微粒子付着凝集粒子を合一させる工程、
を有するトナーの製造方法であって、前記樹脂粒子分散液が、1つの反応容器内で、非晶質ポリエステル及び結晶性ポリエステルを含む樹脂を水系媒体中に分散する工程を有する方法により得られ、前記樹脂微粒子分散液が、非晶質ポリエステルを８０重量％以上含有する樹脂を有機溶剤と混合した後、水系媒体を添加して分散する工程を有する方法により得られる、電子写真用トナーの製造方法。 (1) a step of aggregating resin particles in the resin particle dispersion to obtain a dispersion of aggregated particles;
(2) A step of adding a resin fine particle dispersion to the dispersion of aggregated particles obtained in step (1) to obtain a dispersion of resin fine particle-attached aggregated particles, and (3) obtained in step (2). Coalescing the resin fine particle adhering aggregate particles in the dispersion of the fine resin fine particle adhering aggregate particles,
The resin particle dispersion is obtained by a method having a step of dispersing a resin containing amorphous polyester and crystalline polyester in an aqueous medium in one reaction vessel, A method for producing an electrophotographic toner, wherein the resin fine particle dispersion is obtained by mixing a resin containing 80% by weight or more of an amorphous polyester with an organic solvent, and then adding and dispersing an aqueous medium. . 前記工程（２）において、樹脂微粒子分散液を添加する直前の凝集粒子分散液のｐＨが７〜９である、請求項１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 in the step (2), the pH of the aggregated particle dispersion immediately before the addition of the resin fine particle dispersion is 7 to 9. 前記樹脂粒子分散液が、１つの反応容器内で、非晶質ポリエステルと結晶性ポリエステルとを混合して得られた樹脂を水系媒体中に分散する工程を有する方法により得られる、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 resin particle dispersion liquid, in a single reaction vessel, a resin obtained by mixing the crystalline polyester and the amorphous polyester obtained by the method having the step of dispersing in an aqueous medium, according to claim 1 or 3. A method for producing an electrophotographic toner according to 2 . 前記非晶質ポリエステル及び結晶性ポリエステルを含む樹脂における、結晶性ポリエステルと前記非晶質ポリエステルの重量比（結晶性ポリエステル／非晶質ポリエステル）が１０／９０〜５０／５０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 weight ratio (crystalline polyester / amorphous polyester) of the crystalline polyester and the amorphous polyester in the resin containing the amorphous polyester and the crystalline polyester is 10/90 to 50/50. The method for producing an electrophotographic toner according to any one of items 1 to 3 . 前記樹脂微粒子分散液を得るために用いられる非晶質ポリエステルのガラス転移温度が５５℃以上である、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 any one of claims 1 to 4, wherein the amorphous polyester used for obtaining the resin fine particle dispersion has a glass transition temperature of 55 ° C or higher. （１）樹脂粒子分散液中の樹脂粒子を凝集させて、凝集粒子の分散液を得る工程、
（２）工程（１）で得られた凝集粒子の分散液に、樹脂微粒子分散液を添加して、樹脂微粒子付着凝集粒子の分散液を得る工程、及び
（３）工程（２）で得られた樹脂微粒子付着凝集粒子の分散液を合一させる工程、
を有する製造方法により得られるトナーであって、前記樹脂粒子分散液が、1つの反応容器内で、非晶質ポリエステル及び結晶性ポリエステルを含む樹脂を、水系媒体中に分散する工程を有する方法により得られたものであり、前記樹脂微粒子分散液が、非晶質ポリエステルを８０％重量以上含有する樹脂を有機溶剤と混合した後、水系媒体を添加して分散する工程を有する方法により得られたものである、電子写真用トナー。 (1) a step of aggregating resin particles in the resin particle dispersion to obtain a dispersion of aggregated particles;
(2) A step of adding a resin fine particle dispersion to the dispersion of aggregated particles obtained in step (1) to obtain a dispersion of resin fine particle-attached aggregated particles, and (3) obtained in step (2). A step of uniting the dispersion liquid of the agglomerated particles adhering resin fine particles,
A toner obtained by a production method comprising: a method in which the resin particle dispersion includes a step of dispersing a resin containing an amorphous polyester and a crystalline polyester in an aqueous medium in one reaction vessel. The obtained resin fine particle dispersion was obtained by a method comprising a step of mixing a resin containing 80% by weight or more of amorphous polyester with an organic solvent, and then adding and dispersing the aqueous medium. A toner for electrophotography.
JP2009234200A 2009-10-08 2009-10-08 Method for producing toner for electrophotography Active JP5513060B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009234200A JP5513060B2 (en) 2009-10-08 2009-10-08 Method for producing toner for electrophotography

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Application Number Priority Date Filing Date Title
JP2009234200A JP5513060B2 (en) 2009-10-08 2009-10-08 Method for producing toner for electrophotography

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JP2011081241A JP2011081241A (en) 2011-04-21
JP2011081241A5 true JP2011081241A5 (en) 2012-11-22
JP5513060B2 JP5513060B2 (en) 2014-06-04

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5859768B2 (en) * 2011-07-25 2016-02-16 花王株式会社 Method for producing toner for developing electrostatic image
JP5988727B2 (en) * 2012-06-26 2016-09-07 花王株式会社 Method for producing toner for developing electrostatic image
JP5970372B2 (en) * 2012-12-28 2016-08-17 花王株式会社 Method for producing toner for developing electrostatic image
JP6326273B2 (en) * 2013-04-26 2018-05-16 花王株式会社 Method for producing toner for developing electrostatic image
JP6194222B2 (en) * 2013-10-17 2017-09-06 花王株式会社 Method for producing toner for developing electrostatic image
JP6686935B2 (en) * 2017-02-28 2020-04-22 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
JP7027671B2 (en) * 2017-10-03 2022-03-02 花王株式会社 Manufacturing method of toner for static charge image development

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* Cited by examiner, † Cited by third party
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JP4715709B2 (en) * 2006-10-04 2011-07-06 富士ゼロックス株式会社 Electrostatic latent image developing toner, electrostatic latent image developing developer, and image forming apparatus
JP2008112074A (en) * 2006-10-31 2008-05-15 Fuji Xerox Co Ltd Toner for electrostatic charge image development and method for manufacturing the same, developer for electrostatic charge image development and image forming apparatus
JP5087902B2 (en) * 2006-11-01 2012-12-05 富士ゼロックス株式会社 Method for producing toner for electrostatic charge development
JP5326370B2 (en) * 2008-06-16 2013-10-30 富士ゼロックス株式会社 Toner for developing electrostatic image, developer for developing electrostatic image, and image forming method
CN102149752A (en) * 2008-09-08 2011-08-10 花王株式会社 Manufacturing method for polyester particle dispersion liquid

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