JP2024076645A5 - - Google Patents

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Publication number
JP2024076645A5
JP2024076645A5 JP2022188308A JP2022188308A JP2024076645A5 JP 2024076645 A5 JP2024076645 A5 JP 2024076645A5 JP 2022188308 A JP2022188308 A JP 2022188308A JP 2022188308 A JP2022188308 A JP 2022188308A JP 2024076645 A5 JP2024076645 A5 JP 2024076645A5
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JP
Japan
Prior art keywords
polyester resin
crystalline polyester
roll
carboxylic acid
acid component
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Pending
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JP2022188308A
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Japanese (ja)
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JP2024076645A (en
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Publication date
Application filed filed Critical
Priority to JP2022188308A priority Critical patent/JP2024076645A/en
Priority claimed from JP2022188308A external-priority patent/JP2024076645A/en
Publication of JP2024076645A publication Critical patent/JP2024076645A/en
Publication of JP2024076645A5 publication Critical patent/JP2024076645A5/ja
Pending legal-status Critical Current

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Claims (6)

結晶性ポリエステル樹脂C及び非晶質ポリエステル樹脂Aを含有する静電荷像現像用トナーの製造方法であって、前記結晶性ポリエステル樹脂Cがエチレングリコールを80モル%以上含有するアルコール成分と脂肪族ジカルボン酸系化合物を80モル%以上含有するカルボン酸成分との重縮合物であり、前記非晶質ポリエステル樹脂Aが炭素数が2以上6以下の脂肪族ジオールを80モル%以上含有するアルコール成分とカルボン酸成分との重縮合物であり、前記結晶性ポリエステル樹脂C及び前記非晶質ポリエステル樹脂Aを含有する混合物を、周速度の異なる2本のロールを備えたオープンロール型二軸混練機を用いて溶融混練する工程を含み、該オープンロール型二軸混練機の周速度が高い方の高回転ロールの原料供給側の設定温度が150℃以下である、静電荷像現像用トナーの製造方法。 A method for producing a toner for developing electrostatic images, comprising crystalline polyester resin C and amorphous polyester resin A, wherein the crystalline polyester resin C is a polycondensate of an alcohol component containing 80 mol % or more of ethylene glycol and a carboxylic acid component containing 80 mol % or more of an aliphatic dicarboxylic acid compound, and the amorphous polyester resin A is a polycondensate of an alcohol component containing 80 mol % or more of an aliphatic diol having 2 to 6 carbon atoms and a carboxylic acid component, the method comprising the step of melt-kneading a mixture containing the crystalline polyester resin C and the amorphous polyester resin A using an open-roll twin-screw kneader equipped with two rolls operating at different peripheral speeds, wherein the set temperature of the raw material supply side of the high-speed roll with the higher peripheral speed of the open-roll twin-screw kneader is 150°C or less. 結晶性ポリエステル樹脂Cの非晶質ポリエステル樹脂Aに対する質量比が、3/97以上30/70以下である、請求項1記載の製造方法。 The manufacturing method described in claim 1, wherein the mass ratio of crystalline polyester resin C to amorphous polyester resin A is 3/97 or more and 30/70 or less. 結晶性ポリエステル樹脂Cのカルボン酸成分が、炭素数が8以上16以下の脂肪族ジカルボン酸系化合物を含有する、請求項1記載の製造方法。 2. The method according to claim 1 , wherein the carboxylic acid component of the crystalline polyester resin C contains an aliphatic dicarboxylic acid compound having 8 to 16 carbon atoms. 結晶性ポリエステル樹脂Cのカルボン酸成分が、飽和脂肪族ジカルボン酸系化合物を含有する、請求項1記載の製造方法。 The method according to claim 1 , wherein the carboxylic acid component of the crystalline polyester resin C contains a saturated aliphatic dicarboxylic acid compound. 結晶性ポリエステル樹脂Cのアルコール成分及び/又はカルボン酸成分が1官能のモノマーを含有する、請求項1記載の製造方法。 The method according to claim 1 , wherein the alcohol component and/or the carboxylic acid component of the crystalline polyester resin C contains a monofunctional monomer. オープンロール型二軸混練機の、高回転ロールの設定温度が低回転ロールの設定温度よりも高い、請求項1記載の製造方法。 2. The method according to claim 1 , wherein the set temperature of the high rotation roll of the open roll type twin-screw kneader is higher than the set temperature of the low rotation roll.
JP2022188308A 2022-11-25 2022-11-25 Method for producing toner for developing electrostatic images Pending JP2024076645A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2022188308A JP2024076645A (en) 2022-11-25 2022-11-25 Method for producing toner for developing electrostatic images

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2022188308A JP2024076645A (en) 2022-11-25 2022-11-25 Method for producing toner for developing electrostatic images

Publications (2)

Publication Number Publication Date
JP2024076645A JP2024076645A (en) 2024-06-06
JP2024076645A5 true JP2024076645A5 (en) 2025-09-17

Family

ID=91332833

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022188308A Pending JP2024076645A (en) 2022-11-25 2022-11-25 Method for producing toner for developing electrostatic images

Country Status (1)

Country Link
JP (1) JP2024076645A (en)

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