PROBLEM TO BE SOLVED: To provide a polyester resin for a toner excellent in low-temperature fixability.SOLUTION: The polyester resin for a toner comprises a repeating unit derived from a dicarboxylic acid and a repeating unit derived from dialcohol represented by general formula (1), in which the content of the repeating unit derived from dialcohol represented by general formula (1) is 20 mass% or more and 50 mass% or less. In general formula (1), Rand Rrepresent hydrogen or a methyl group; Lrepresents a divalent connecting group selected from a group consisting of an ether group, a linear alkylene group, a cyclic alkylene group, and their combinations; Land Lrepresent a divalent connecting group selected from a group consisting of a carbonyl group, ester group, ether group, sulfonyl group, linear alkylene group, cyclic alkylene group, arylene group, and their combinations; and Aand Arepresent a rosin ester group derived from a hydrogenated rosin.SELECTED DRAWING: None
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机译：解决的问题：提供一种低温定影性优异的调色剂用聚酯树脂。解决方案：调色剂用聚酯树脂包括由二羧酸衍生的重复单元和由通式（1）表示的二元醇衍生的重复单元。 ），其中通式（1）表示的源自二元醇的重复单元的含量为20质量％以上且50质量％以下。通式（1）中，RandR表示氢或甲基。 L表示选自醚基，线性亚烷基，环状亚烷基及其组合的二价连接基团; Land L表示选自羰基，酯基，醚基，磺酰基，直链亚烷基，环状亚烷基，亚芳基及其组合的二价连接基团; Aand和Aand代表从氢化松香衍生的松香酯基。
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