JP2014029511A5 - Toner production method - Google Patents

Toner production method Download PDF

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JP2014029511A5
JP2014029511A5 JP2013133647A JP2013133647A JP2014029511A5 JP 2014029511 A5 JP2014029511 A5 JP 2014029511A5 JP 2013133647 A JP2013133647 A JP 2013133647A JP 2013133647 A JP2013133647 A JP 2013133647A JP 2014029511 A5 JP2014029511 A5 JP 2014029511A5
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toner
fine particles
silica fine
production method
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JP6150631B2 (en
JP2014029511A (en
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Claims (8)

シリカ原体１００質量部に対して１５．０質量部以上４０．０質量部以下のシリコーンオイルによって処理され、該シリコーンオイルの炭素量基準の固定化率（％）が７０％以上であるシリカ微粒子を用意する工程；および
結着樹脂及び着色剤を含有するトナー粒子と該シリカ微粒子とを混合する工程；
を含むトナーの製造方法であって、
Ｘ線光電子分光装置（ＥＳＣＡ）により求めた、該トナー表面の該シリカ微粒子による被覆率をＸ１とし、該トナー表面の該シリカ微粒子による理論被覆率をＸ２としたとき、Ｘ１が５０．０面積％以上７５．０面積％以下であり、下記式１で示される拡散指数が下記式２を満足することを特徴とするトナーの製造方法。
（式１）拡散指数＝Ｘ１／Ｘ２
（式２）拡散指数≧−０．００４２×Ｘ１＋０．６２ Silica fine particles treated with 15.0 parts by mass or more and 40.0 parts by mass or less of silicone oil with respect to 100 parts by mass of silica raw material, and the immobilization ratio (%) based on carbon amount of the silicone oil is 70% or more Providing a step; and
Mixing toner particles containing a binder resin and a colorant and the silica fine particles;
A method for producing a toner comprising:
When the coverage of the toner surface by the silica fine particles obtained by an X-ray photoelectron spectrometer (ESCA) is X1, and the theoretical coverage by the silica fine particles on the toner surface is X2, X1 is 50.0 area%. A toner production method, wherein the diffusion index is 75.0 area% or less and the diffusion index represented by the following formula 1 satisfies the following formula 2.
(Formula 1) Diffusion index = X1 / X2
(Expression 2) Diffusion index ≧ −0.0042 × X1 + 0.62 前記シリカ原体は、窒素吸着によるＢＥＴ法で測定した比表面積（ＢＥＴ比表面積）が１３０ｍ２／ｇ以上３３０ｍ２／ｇ以下であることを特徴とする請求項１に記載のトナーの製造方法。 2. The toner production method according to claim 1, wherein the silica base material has a specific surface area (BET specific surface area) measured by a BET method by nitrogen adsorption of 130 m 2 / g or more and 330 m 2 / g or less. 前記シリカ微粒子の処理に用いるシリコーンオイルの２５℃における動粘度が、３０ｃＳｔ以上５００ｃＳｔ以下であることを特徴とする請求項１または２に記載のトナーの製造方法。 The method for producing a toner according to claim 1, wherein the silicone oil used for the treatment of the silica fine particles has a kinematic viscosity at 25 ° C. of 30 cSt or more and 500 cSt or less. 前記トナー粒子の平均円形度が０．９６０以上であることを特徴とする請求項１乃至３のいずれか１項に記載のトナーの製造方法。 The toner manufacturing method according to claim 1, wherein an average circularity of the toner particles is 0.960 or more. 前記シリカ微粒子は、シリカ原体がシリコーンオイルによって処理された後、アルコキシシラン及びシラザンの少なくとも一方で処理されたものであることを特徴とする請求項１乃至４のいずれか１項に記載のトナーの製造方法。 The silica fine particles, after the base material silica is processed by the silicone oil, according to any one of claims 1 to 4, characterized in that treated with at least one of the alkoxysilane and silazanes toner Manufacturing method . 前記シリカ微粒子の見掛け密度が、１５ｇ／Ｌ以上５０ｇ／Ｌ以下であることを特徴とする請求項１乃至５のいずれか１項に記載のトナーの製造方法。 6. The toner production method according to claim 1, wherein an apparent density of the silica fine particles is 15 g / L or more and 50 g / L or less. 前記トナー粒子が、水系媒体中で製造されたものであることを特徴とする請求項１乃至
６のいずれか１項に記載のトナーの製造方法。 The toner production method according to claim 1, wherein the toner particles are produced in an aqueous medium. 前記トナー粒子が、懸濁重合法で製造されたものであることを特徴とする請求項１乃至７のいずれか１項に記載のトナーの製造方法。 The toner production method according to claim 1, wherein the toner particles are produced by a suspension polymerization method .
JP2013133647A 2012-06-27 2013-06-26 Toner production method Active JP6150631B2 (en)

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JP6100106B2 (en) * 2012-06-27 2017-03-22 キヤノン株式会社 toner
JP6165249B2 (en) * 2013-06-27 2017-07-19 キヤノン株式会社 Image forming apparatus
JP6157619B2 (en) * 2013-06-27 2017-07-05 キヤノン株式会社 Image forming apparatus and process cartridge
JP6300508B2 (en) * 2013-12-17 2018-03-28 キヤノン株式会社 Toner and toner production method
JP6391458B2 (en) * 2013-12-26 2018-09-19 キヤノン株式会社 Developing device, developing method, image forming apparatus, and image forming method
JP6385140B2 (en) * 2014-05-30 2018-09-05 キヤノン株式会社 toner
JP6381424B2 (en) * 2014-11-28 2018-08-29 キヤノン株式会社 Image forming apparatus and image forming method
JP6289432B2 (en) * 2014-11-28 2018-03-07 キヤノン株式会社 Toner and toner production method
JP6658044B2 (en) * 2016-02-10 2020-03-04 富士ゼロックス株式会社 Electrostatic image developing toner, electrostatic image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
JP6610317B2 (en) * 2016-02-10 2019-11-27 富士ゼロックス株式会社 Electrostatic image developing toner, electrostatic image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
JP6642076B2 (en) * 2016-02-10 2020-02-05 富士ゼロックス株式会社 Electrostatic image developing toner, electrostatic image developing developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
JP2017142397A (en) 2016-02-10 2017-08-17 富士ゼロックス株式会社 Toner for electrostatic charge image development, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
JP6642077B2 (en) 2016-02-10 2020-02-05 富士ゼロックス株式会社 Electrostatic image developing toner, electrostatic image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
JP6878092B2 (en) * 2017-03-31 2021-05-26 キヤノン株式会社 toner

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JP3332727B2 (en) * 1996-05-28 2002-10-07 キヤノン株式会社 Image forming method and toner
JP2005338690A (en) * 2004-05-31 2005-12-08 Canon Inc Toner and image forming apparatus
JP2006178195A (en) * 2004-12-22 2006-07-06 Hosokawa Funtai Gijutsu Kenkyusho:Kk Method for manufacturing deformed toner
JP2008233198A (en) * 2007-03-16 2008-10-02 Ricoh Co Ltd Image forming apparatus
JP5064949B2 (en) * 2007-09-14 2012-10-31 株式会社リコー Method for producing toner for electrophotography
JP5401966B2 (en) * 2008-12-16 2014-01-29 富士ゼロックス株式会社 Toner for developing electrostatic image and method for producing the same, developer for developing electrostatic image, toner cartridge, process cartridge, and image forming apparatus
JP5344612B2 (en) * 2009-09-16 2013-11-20 キヤノン株式会社 toner
JP5344611B2 (en) * 2009-09-16 2013-11-20 キヤノン株式会社 toner
JP5495727B2 (en) * 2009-11-17 2014-05-21 キヤノン株式会社 Image forming method

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