JP2011048159A5 - - Google Patents

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JP2011048159A5
JP2011048159A5 JP2009196700A JP2009196700A JP2011048159A5 JP 2011048159 A5 JP2011048159 A5 JP 2011048159A5 JP 2009196700 A JP2009196700 A JP 2009196700A JP 2009196700 A JP2009196700 A JP 2009196700A JP 2011048159 A5 JP2011048159 A5 JP 2011048159A5
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toner
metal oxide
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methanol
mass
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JP5409200B2 (en
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上記目的を達成するため、本出願に係る発明は、少なくとも結着樹脂及び着色剤を含有するトナー粒子と、金属酸化物とを有するトナーであって、前記金属酸化物は、（ｉ）３０℃で測定した水分吸着等温線において、相対湿度１０％ＲＨ時の吸着水分量をＭ１０（質量％）、相対湿度９０％ＲＨ時の吸着水分量をＭ９０（質量％）としたとき、（Ｍ９０−Ｍ１０）／（９０−１０）が０．０００１以上０．００７０以下であり、かつ、（ｉｉ）前記金属酸化物を添加したメタノール及び水の混合溶媒に、メタノールを滴下しながら、７８０ｎｍの波長の光の透過率を測る測定において、透過率が５０％のときのメタノール濃度が４０．０体積％以下であることを特徴とする。 To achieve the above object, the invention according to the present application, the toner particles containing at least a binder resin and a colorant, a toner having a metal oxide, the metal oxide, (i) 30 ° C. In the moisture adsorption isotherm measured in (2), when the amount of moisture adsorbed at a relative humidity of 10% RH is M10 (mass%) and the amount of adsorbed moisture at a relative humidity of 90% RH is M90 (mass%), (M90-M10 ) / (90-10) is 0.0001 or more and 0.0070 or less, and (ii) While adding methanol dropwise to a mixed solvent of methanol and water to which the metal oxide is added , light having a wavelength of 780 nm In the measurement for measuring the transmittance, the methanol concentration when the transmittance is 50% is 40.0% by volume or less.

Claims (10)

少なくとも結着樹脂及び着色剤を含有するトナー粒子と、金属酸化物とを有するトナーであって、
前記金属酸化物は、
（ｉ）３０℃で測定した水分吸着等温線において、相対湿度１０％ＲＨ時の吸着水分量をＭ１０（質量％）、相対湿度９０％ＲＨ時の吸着水分量をＭ９０（質量％）としたとき、（Ｍ９０−Ｍ１０）/（９０−１０）が０．０００１以上０．００７０以下であり、かつ
、
（ｉｉ）前記金属酸化物を添加したメタノール及び水の混合溶媒に、メタノールを滴下しながら、７８０ｎｍの波長の光の透過率を測る測定において、透過率が５０％のときのメタノール濃度が４０．０体積％以下である
ことを特徴とするトナー。 Toner particles containing at least a binder resin and a colorant, a toner having a metal oxide,
The metal oxide is
(I) In the moisture adsorption isotherm measured at 30 ° C., the amount of moisture adsorbed at a relative humidity of 10% RH is M10 (mass%), and the amount of moisture adsorbed at a relative humidity of 90% RH is M90 (mass%). , (M90-M10) / (90-10) is 0.0001 or more and 0.0070 or less, and
(Ii) In the measurement of measuring the transmittance of light having a wavelength of 780 nm while dropping methanol into a mixed solvent of methanol and water to which the metal oxide is added , the methanol concentration when the transmittance is 50% is 40. A toner characterized by being 0% by volume or less. 前記金属酸化物をメタノール中に分散させた状態での金属酸化物のゼータ電位（ｍＶ）が、−１０．０ｍＶ以上６０．０ｍＶ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 metal oxide zeta potential of the metal oxide in a state dispersed in methanol (mV), characterized in that at least -10.0mV 60.0mV below. 前記金属酸化物は、３０℃での水分吸着等温線において、相対湿度９０％ＲＨ時の吸着水分量が０．６０質量％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。   3. The toner according to claim 1, wherein the metal oxide has an adsorption moisture amount of 0.60% by mass or less at a relative humidity of 90% RH on a moisture adsorption isotherm at 30 ° C. 3. 前記金属酸化物の水中で測定されたレーザー回折型粒度分布計における体積基準のメジアン径が０．１０μｍ以上１．００μｍ以下であることを特徴とする請求項１乃至３のいずれか一項に記載のトナー。 According to any one of claims 1 to 3, characterized in that the volume-based median diameter of the metal oxide laser diffraction type particle size distribution meter measured in water is 0.10μm or more 1.00μm or less Toner. 前記金属酸化物のフロー式粒子像分析装置によって測定される円相当径０．８０μｍ以上１．９８μｍ以下の平均円形度が０．９５０以上１．０００以下であることを特徴とする請求項１乃至４のいずれか一項に記載のトナー。 1 through claim wherein the metal oxide equivalent circle diameter 0.80μm or 1.98μm or less of the average circularity measured by a flow type particle image analyzer is characterized in that 1.000 or less than 0.950 The toner according to any one of 4. 前記金属酸化物は、気相酸化法によって製造されたことを特徴とする請求項１乃至５のいずれか一項に記載のトナー。   The toner according to claim 1, wherein the metal oxide is manufactured by a gas phase oxidation method. 前記金属酸化物は、体積固有抵抗が１×１０６Ω・ｃｍ以上１×１０１３Ω・ｃｍ以下であることを特徴とする請求項１乃至６のいずれか一項に記載のトナー。 7. The toner according to claim 1, wherein the metal oxide has a volume resistivity of 1 × 10 6 Ω · cm to 1 × 10 13 Ω · cm. 前記金属酸化物は、酸化アルミニウム、酸化チタン、酸化ジルコニウム、チタン酸ストロンチウム、チタン酸マグネシウム及びチタン酸バリウムからなる群から選択される少なくとも１種を含むことを特徴とする請求項１乃至７のいずれか一項に記載のトナー。   8. The metal oxide according to claim 1, wherein the metal oxide includes at least one selected from the group consisting of aluminum oxide, titanium oxide, zirconium oxide, strontium titanate, magnesium titanate, and barium titanate. The toner according to claim 1. 前記トナー粒子は、重合性単量体及び前記着色剤を少なくとも含有する重合性単量体組成物を水系媒体に加え、前記水系媒体中で前記重合性単量体組成物を造粒して重合性単量体組成物粒子を形成し、前記重合性単量体組成物粒子に含まれる前記重合性単量体を重合して得られることを特徴とする請求項１乃至８のいずれか一項に記載のトナー。 The toner particles, a polymerizable monomer composition containing at least a polymerizable monomer and the colorant is added to the aqueous medium, the polymerization granulating the polymerizable monomer composition in the aqueous medium forming a sex monomer composition particles, any one of claims 1 to 8, characterized in that it is obtained by polymerizing the polymerizable monomer contained in the polymerizable monomer composition particles The toner described in 1. 静電潜像担持体を帯電手段により帯電する帯電工程、前記帯電された静電潜像担持体を露光して静電潜像を形成する露光工程、トナー層規制部材でトナー担持体上のトナーを規制する工程、前記静電潜像をトナーで現像してトナー像を静電潜像担持体上に形成する現像工程を有する画像形成方法において、
前記トナーは少なくとも結着樹脂及び着色剤を含有するトナー粒子と、金属酸化物とを有するトナーであって、
前記金属酸化物は、
（ｉ）３０℃で測定した水分吸着等温線において、相対湿度１０％ＲＨ時の吸着水分量をＭ１０（質量％）、相対湿度９０％ＲＨ時の吸着水分量をＭ９０（質量％）としたとき、（Ｍ９０−Ｍ１０）/（９０−１０）が０．０００１以上０．００７０以下であり、かつ
、
（ｉｉ）前記金属酸化物を添加した、メタノール及び水の混合溶媒に、メタノールを滴下しながら、７８０ｎｍの波長の光の透過率を測る測定において、透過率が５０％のときのメタノール濃度が４０．０体積％以下であることを特徴とする画像形成方法。 A charging step of charging the electrostatic latent image carrier with charging means; an exposure step of exposing the charged electrostatic latent image carrier to form an electrostatic latent image; and a toner on the toner carrier with a toner layer regulating member An image forming method comprising: a step of regulating the developing step, and developing the electrostatic latent image with toner to form a toner image on the electrostatic latent image carrier.
The toner and toner particles containing at least a binder resin and a colorant, a toner having a metal oxide,
The metal oxide is
(I) In the moisture adsorption isotherm measured at 30 ° C., the amount of moisture adsorbed at a relative humidity of 10% RH is M10 (mass%), and the amount of moisture adsorbed at a relative humidity of 90% RH is M90 (mass%). , (M90-M10) / (90-10) is 0.0001 or more and 0.0070 or less, and
(Ii) In the measurement of measuring the transmittance of light having a wavelength of 780 nm while adding methanol dropwise to a mixed solvent of methanol and water to which the metal oxide is added, the methanol concentration when the transmittance is 50% is 40%. An image forming method, wherein the content is 0.0 vol% or less.
JP2009196700A 2009-08-27 2009-08-27 Toner and image forming method Active JP5409200B2 (en)

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JP2011048159A5 true JP2011048159A5 (en) 2012-10-11
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JP5885522B2 (en) * 2012-02-01 2016-03-15 キヤノン株式会社 Method for producing toner particles
CN102706970B (en) * 2012-06-08 2014-04-16 云南烟草科学研究院 Method for quickly detecting performance of adsorption material
JP6987655B2 (en) * 2018-01-29 2022-01-05 キヤノン株式会社 toner
JP2019200345A (en) * 2018-05-17 2019-11-21 コニカミノルタ株式会社 Toner for developing electrical static charge image and two-component developer for developing electrical static charge image
JP7242217B2 (en) * 2018-08-27 2023-03-20 キヤノン株式会社 Toner and toner manufacturing method

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JP4789786B2 (en) * 2006-12-06 2011-10-12 キヤノン株式会社 Toner and image forming method
JP4773934B2 (en) * 2006-12-06 2011-09-14 キヤノン株式会社 toner
JP5053742B2 (en) * 2007-07-20 2012-10-17 キヤノン株式会社 Image forming method

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