Tomoegawa Paper Co., Inc.

Unitika Ltd.

Kazue Nakadera

Haruo Okutani

Hideki Kurebayashi

Toshio Tagami

Naomi Sasaki

Tomoko Kubota

Kouta Tanahashi

Kikumi Nakamichi

Polyester resin for use in toner binder and process for producing the

A toner for developing an electrostatic image comprising at least a colorant and a binder resin, characterized in that the main component of the binder resin is a polyester resin, and the polyester resin is containing a polymer prepared by reacting a polyester oligomer and at least one compound selected form the group consisting of long chain alcohols and long chain carboxylic acids which have 12 or more carbon atoms.

Toner for developing static charge images and process for preparing the

A toner for developing an electrostatic image, which is excellent in low-temperature fixing properties, the prevention of offsetting and uniform chargeability, and which comprises a colorant and a polyester resin modified with an ethyleneimine derivative.

Toner for developing electrostatic image

A toner for developing an electrostatic image, which is composed of a binder resin and a colorant as main components, said binder resin containing a phenolic hydroxyl group-containing polyester resin as a main component, which toner is energy-saving, suitable for use in a contact heat fixing method using a hot roller, has a high fixing strength at a low temperature and excellent offset preventing properties and is excellent in fixing strength and offset preventing properties in a broad fixing temperature range.

Polyester modified with ethyleneimine derivative binder for toner

Growing community of inventors

Shizuoka, Japan

Kazue Nakadera