JP2018092139A5 - - Google Patents

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JP2018092139A5
JP2018092139A5 JP2017202917A JP2017202917A JP2018092139A5 JP 2018092139 A5 JP2018092139 A5 JP 2018092139A5 JP 2017202917 A JP2017202917 A JP 2017202917A JP 2017202917 A JP2017202917 A JP 2017202917A JP 2018092139 A5 JP2018092139 A5 JP 2018092139A5
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Japan
Prior art keywords
toner
particles
fine particles
resin
toner according
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JP2017202917A
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Japanese (ja)
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JP7146381B2 (en
JP2018092139A (en
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Priority to US15/814,818 priority Critical patent/US10151990B2/en
Priority to CN201711184279.3A priority patent/CN108107689B/en
Priority to DE102017127710.2A priority patent/DE102017127710B4/en
Publication of JP2018092139A publication Critical patent/JP2018092139A/en
Publication of JP2018092139A5 publication Critical patent/JP2018092139A5/ja
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Description

本発明は、トナー粒子を有するトナーであって、
該トナー粒子が、
結着樹脂を含有するトナー母粒子、及び、
該トナー母粒子の表面に形成された、樹脂Aを含有する被覆層を有し
該樹脂Aの弾性率Ea及び該結着樹脂の弾性率Ebが、下記式を満たし、
0.5≦(Ea/Eb)×100[%] ≦ 50.0
該トナー粒子にカンチレバーの先端に球状SiOが付いたプローブを3μNで押し込んだ際の該トナー粒子の付着力Aが、500nN以上であることを特徴とするトナーに関する。
The present invention is a toner having toner particles.
The toner particles,
Toner mother particles containing a binder resin and
It has a coating layer containing resin A formed on the surface of the toner matrix particles , and has a coating layer containing resin A.
The elastic modulus Ea of the resin A and the elastic modulus Eb of the binder resin satisfy the following formulas.
0.5 ≤ (Ea / Eb) x 100 [%] ≤ 50.0
The present invention relates to a toner characterized in that the adhesive force AT of the toner particles when a probe having a spherical SiO 2 attached to the tip of a cantilever is pushed into the toner particles with 3 μN is 500 nN or more.

Claims (7)

ナー粒子を有するトナーであって、
該トナー粒子が、
結着樹脂を含有するトナー母粒子、及び、
該トナー母粒子の表面に形成された、樹脂Aを含有する被覆層を有し
該樹脂Aの弾性率Ea及び該結着樹脂の弾性率Ebが、下記式を満たし、
0.5≦(Ea/Eb)×100[%]≦50.0
該トナー粒子にカンチレバーの先端に球状SiOが付いたプローブを3μNで押し込んだ際の該トナー粒子の付着力ATが、500nN以上である
ことを特徴とするトナー。
A toner having a preparative toner particles,
The toner particles,
Toner mother particles containing a binder resin and
It has a coating layer containing resin A formed on the surface of the toner matrix particles , and has a coating layer containing resin A.
The elastic modulus Ea of the resin A and the elastic modulus Eb of the binder resin satisfy the following formulas.
0.5 ≤ (Ea / Eb) x 100 [%] ≤ 50.0
A toner characterized in that the adhesive force AT of the toner particles when a probe having a spherical SiO 2 attached to the tip of a cantilever is pushed into the toner particles with 3 μN is 500 nN or more.
前記被覆層による前記トナー粒子表面の被覆率が70%以上である請求項1に記載のトナー。 Coverage of the surface of the toner base particles by the coating layer, toner according to claim 1 is 70% or more. 前記樹脂Aが熱可塑性エラストマーである請求項1又は2に記載のトナー。 The toner according to claim 1 or 2, wherein the resin A is a thermoplastic elastomer. 前記ATが、600nN以上であり、
記トナー粒子の表面に微粒子が存在し、
該微粒子が下記の規定i)及びii)を満たす
請求項1〜3のいずれか1項に記載のトナー。
i)該微粒子の個数平均粒子径が0.090μm以上である
ii)該微粒子による前記トナー粒子に対する被覆率C(%)が下記式(1)を満たす
Figure 2018092139

(式(1)中、DTは前記トナー粒子の個数平均粒子径(D1)(μm)を表し、DEは該微粒子の個数平均粒子径(D1)(μm)を表す。)
The AT is 600 nN or more,
Fine particles are present on the surface of the previous Symbol toner particles,
The toner according to any one of claims 1 to 3 , wherein the fine particles satisfy the following provisions ( i) and ( ii).
( I) The number average particle diameter of the fine particles is 0.090 μm or more .
( Ii) The coverage C (%) of the fine particles on the toner particles satisfies the following formula (1) .
Figure 2018092139

(In the formula (1), DT represents the number average particle diameter (D1) (μm) of the toner particles, and DE represents the number average particle diameter (D1) (μm) of the fine particles.)
前記微粒子を温度23℃、相対湿度5%の環境下に24時間放置した後に、温度30℃ After leaving the fine particles in an environment having a temperature of 23 ° C. and a relative humidity of 5% for 24 hours, the temperature is 30 ° C.
、相対湿度80%の環境下に1時間放置した際、前記微粒子の質量変化率を、前記微粒子の比表面積で除した値(質量変化率/比表面積)が、0.055%・g/mWhen left for 1 hour in an environment with a relative humidity of 80%, the value obtained by dividing the mass change rate of the fine particles by the specific surface area of the fine particles (mass change rate / specific surface area) is 0.055% · g / m. 2 以下である請求項4に記載のトナー。The toner according to claim 4, which is as follows.
前記樹脂Aが、親水性基を有するポリオレフィン系熱可塑性エラストマーである請求項1〜のいずれか1項に記載のトナー。 The toner according to any one of claims 1 to 5 , wherein the resin A is a polyolefin-based thermoplastic elastomer having a hydrophilic group. 前記樹脂Aが、ポリスチレン系熱可塑性エラストマーである請求項1〜のいずれか1項に記載のトナー。 The toner according to any one of claims 1 to 5 , wherein the resin A is a polystyrene-based thermoplastic elastomer.
JP2017202917A 2016-11-25 2017-10-19 toner Active JP7146381B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US15/814,818 US10151990B2 (en) 2016-11-25 2017-11-16 Toner
CN201711184279.3A CN108107689B (en) 2016-11-25 2017-11-23 Toner and image forming apparatus
DE102017127710.2A DE102017127710B4 (en) 2016-11-25 2017-11-23 TONER

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016228880 2016-11-25
JP2016228880 2016-11-25

Publications (3)

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JP2018092139A JP2018092139A (en) 2018-06-14
JP2018092139A5 true JP2018092139A5 (en) 2020-11-26
JP7146381B2 JP7146381B2 (en) 2022-10-04

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11237496B2 (en) 2017-09-29 2022-02-01 Zeon Corporation Toner for developing electrostatic images
WO2020045664A1 (en) * 2018-08-31 2020-03-05 日本ゼオン株式会社 Electrostatic charge image development toner
US20230185211A1 (en) * 2020-06-29 2023-06-15 Zeon Corporation Toner for development of electrostatic images

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* Cited by examiner, † Cited by third party
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WO1993014446A1 (en) * 1992-01-20 1993-07-22 Seiko Epson Corporation Printing method and apparatus
JP2006084952A (en) 2004-09-17 2006-03-30 Fuji Xerox Co Ltd Electrophotographic toner and its manufacturing method, electrophotographic developer, and image forming method
JP5175635B2 (en) 2008-06-23 2013-04-03 シャープ株式会社 Toner, developer, developing device, and image forming apparatus
JP5911235B2 (en) 2011-08-29 2016-04-27 キヤノン株式会社 toner
JP2013195847A (en) 2012-03-21 2013-09-30 Fuji Xerox Co Ltd Toner for electrostatic charge image development, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
JP7030460B2 (en) 2017-09-21 2022-03-07 キヤノン株式会社 toner

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