JP2008145491A5 - - Google Patents

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JP2008145491A5
JP2008145491A5 JP2006329238A JP2006329238A JP2008145491A5 JP 2008145491 A5 JP2008145491 A5 JP 2008145491A5 JP 2006329238 A JP2006329238 A JP 2006329238A JP 2006329238 A JP2006329238 A JP 2006329238A JP 2008145491 A5 JP2008145491 A5 JP 2008145491A5
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Japan
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less
toner
fine
silica
particles
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JP2006329238A
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Japanese (ja)
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JP2008145491A (en
JP4773934B2 (en
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Priority to JP2006329238A priority Critical patent/JP4773934B2/en
Priority claimed from JP2006329238A external-priority patent/JP4773934B2/en
Publication of JP2008145491A publication Critical patent/JP2008145491A/en
Publication of JP2008145491A5 publication Critical patent/JP2008145491A5/ja
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Publication of JP4773934B2 publication Critical patent/JP4773934B2/en
Expired - Fee Related legal-status Critical Current
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Claims (5)

結着樹脂及び着色剤を少なくとも含有するトナー粒子と、シリカ微粉末を有するトナーにおいて、
該トナー粒子が、重合体微粒子及び着色剤微粒子を少なくとも凝集して微粒子の凝集体を形成する工程及び微粒子の該凝集体中の微粒子間の融着を起こさせる熟成工程を経て得られる乳化凝集法で得られ、
該トナー粒子のＢＥＴ比表面積が１．５０ｍ 2 ／ｇ以上５．００ｍ2／ｇ以下であり、
該シリカ微粉末は、体積基準のメジアン径（Ｄ５０）が０．７０μｍ以上３．００μｍ以下であり、かつ、細孔径１．７ｎｍ以上３００．０ｎｍ以下の範囲で測定される全細孔容積が０．２００ｃｍ3／ｇ以下であることを特徴とするトナー。 In toner particles containing at least a binder resin and a colorant, and a toner having fine silica powder,
An emulsion aggregation method in which the toner particles are obtained through a step of agglomerating at least polymer fine particles and colorant fine particles to form fine particle aggregates, and a ripening step of causing fusion of the fine particles in the aggregates. Obtained in
The BET specific surface area of the toner particles is 1.50 m 2 / g or more and 5.00 m 2 / g or less ,
The silica fine powder has a volume-based median diameter (D50) of 0.70 μm or more and 3.00 μm or less , and a total pore volume measured in a pore diameter range of 1.7 nm or more and 300.0 nm or less. A toner, which is 0.200 cm 3 / g or less. 該シリカ微粉末は、平均細孔径が５０．０ｎｍ以下であることを特徴とする請求項１に記載のトナー。   The toner according to claim 1, wherein the silica fine powder has an average pore diameter of 50.0 nm or less. 該トナーは、さらにＢＥＴ比表面積が５０ｍ 2 ／ｇ以上３００ｍ2／ｇ以下の疎水性無機微粉末を含有することを特徴とする請求項１または２に記載のトナー。 The toner according to claim 1, further comprising a hydrophobic inorganic fine powder having a BET specific surface area of 50 m 2 / g or more and 300 m 2 / g or less . 該シリカ微粉末の温度３０℃における水分吸着・脱着等温線において、相対湿度８０％ＲＨにおける吸着過程の吸着水分量が０．０１質量％以上１．００質量％以下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。 The moisture adsorption / desorption isotherm at a temperature of 30 ° C. of the fine silica powder is characterized in that the amount of adsorbed water in the adsorption process at a relative humidity of 80% RH is 0.01 % by mass or more and 1.00% by mass or less. the toner according to any one of claim 1 to 3. 該シリカ微粉末が気相法で製造されたシリカ微粉末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。 The toner according to any one of claims 1 to 4 wherein the silica fine powder is characterized in that the silica fine powder produced by the gas phase method.
JP2006329238A 2006-12-06 2006-12-06 toner Expired - Fee Related JP4773934B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006329238A JP4773934B2 (en) 2006-12-06 2006-12-06 toner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006329238A JP4773934B2 (en) 2006-12-06 2006-12-06 toner

Publications (3)

Publication Number Publication Date
JP2008145491A JP2008145491A (en) 2008-06-26
JP2008145491A5 true JP2008145491A5 (en) 2010-01-28
JP4773934B2 JP4773934B2 (en) 2011-09-14

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Family Applications (1)

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JP2006329238A Expired - Fee Related JP4773934B2 (en) 2006-12-06 2006-12-06 toner

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JP (1) JP4773934B2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5407579B2 (en) * 2009-06-17 2014-02-05 株式会社リコー Toner, developer, image forming method, image forming apparatus, and process cartridge
JP5444909B2 (en) * 2009-07-21 2014-03-19 富士ゼロックス株式会社 Transparent toner for developing electrostatic latent image, electrostatic latent image developer, toner cartridge, process cartridge, and image forming apparatus
JP5409200B2 (en) * 2009-08-27 2014-02-05 キヤノン株式会社 Toner and image forming method
JP5479119B2 (en) * 2010-01-14 2014-04-23 株式会社沖データ Developer, developing device, developer container, and image forming apparatus
JP5677038B2 (en) * 2010-11-08 2015-02-25 キヤノン株式会社 toner
JP2017191148A (en) * 2016-04-11 2017-10-19 キヤノン株式会社 Toner and method for manufacturing toner
US20220236654A1 (en) * 2021-01-25 2022-07-28 Canon Kabushiki Kaisha Fine particle, external additive for toner, toner, two-component developer, and method for manufacturing toner
CN118267320B (en) * 2024-03-28 2024-10-11 广东博然堂生物科技有限公司 Tooth makeup removing composition and tooth makeup removing paste

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