JP2012098503A5

JP2012098503A5 -

Info

Publication number: JP2012098503A5
Application number: JP2010245958A
Authority: JP
Filing date: 2010-11-02
Publication date: 2013-12-12
Anticipated expiration: 2030-11-02

Description

すなわち、本発明は、水系媒体中で製造されたトナー粒子と、無機微粒子とを含有するトナーであって、該トナー粒子が、結着樹脂、着色剤及び非イオン性界面活性剤を含有し、該結着樹脂が、チタン化合物を触媒として製造されたポリエステル樹脂を含有し、該トナーからメタノールにより抽出される該非イオン性界面活性剤の抽出量をＡ（ｐｐｍ）とし、細孔電気抵抗法による精密粒度分布測定装置を用いた該トナーの粒子径分布から求められる理論比表面積をＢ（ｍ^２／ｇ）としたときに、該Ａの該Ｂに対する比の値（Ａ／Ｂ）が、５．０×１０^−５以上９．０×１０^−３（ｇ／ｍ^２）以下であり、該非イオン性界面活性剤が、アルキレングリコールのブロック共重合体を含有し、該アルキレングリコールのブロック共重合体のゲルパーミエーションクロマトグラフィーにより測定される数平均分子量が、１２００以上４００００以下であることを特徴とするトナーに関する。 That is, the present invention includes toner particles produced in an aqueous medium, the inorganic fine particles to a toner having free, containing chromatic said toner particles, a binder resin, a colorant, and a nonionic surfactant and, the binder resin, a polyester resin prepared with a titanium compound as a catalyst has free and the extraction amount of the nonionic surfactant is extracted with methanol from the toner and a (ppm), pore when the theoretical specific surface area determined from the particle size distribution of the toner using the precision particle size distribution measurement apparatus by electric resistance method B and (m 2 ^{/ g),} the value of the ratio against the B of the a (a / B ) is, is a 5.0 × ^{10 -5} or more ^{^{9.0 × 10 -3 (g / m}} 2) or less, the nonionic surfactant comprises a block copolymer of alkylene glycol, the alkylene Glycol block copolymer gel The number average molecular weight that will be determined by permeation chromatography, a toner which is characterized in that 1200 to 40,000.

Claims

The toner particles produced in an aqueous medium, the inorganic fine particles to a toner having free,
The toner particles, a binder resin, a coloring agent and a nonionic surface active agent having free,
The binder resin comprises containing a polyester resin prepared with a titanium compound as a catalyst,
The extraction amount of the nonionic surfactant is extracted with methanol from the toner and A (ppm), the theoretical ratio obtained from the particle size distribution of the toner using the precision particle size distribution measuring apparatus based on a pore electrical resistance method when the surface area B ^(m 2 / g), the value of the ratio against the B of the a (a / B) is, 5.0 × ^{10 -5} or more ^{^{9.0 × 10 -3 (g / m}} 2 )
The nonionic surfactant contains a block copolymer of alkylene glycol,
Toner characterized in that the number average molecular weight that will be measured by gel permeation chromatography of a block copolymer of alkylene glycol is 1,200 to 40,000.

Wherein in the toner, the content of titanium element derived from the polyester resin of the titanium compound was prepared as a catalyst, the toner according to 請 Motomeko 1 Ru der more 3,000ppm or less 30 ppm.

The block copolymer of alkylene glycol toner according to 請 Motomeko 1 or 2 Ru block copolymer der alkylene glycol represented by the following structural formula (1).

[In Structural Formula (1) , a, b and c are integers, and a> 0, b ≧ 4, c> 0, a + c ≧ 4 . ]

Block copolymers of alkylene glycols represented by the structural formula (1) is an ethylene oxide adduct of polypropylene glycol represented by the following structural formula (2), polypropylene glycol represented by the following structural formula (2) the number average molecular weight, toner according to 請 Motomeko 3 Ru der 1000 or 3600 or less.

[In Structural Formula (2) , b is an integer, and 4 ≦ b ≦ 100 . ]

The toner particles The toner according to any one of Ah Ru claims 1 to 4, in the toner particles produced by emulsion aggregation methods.