Toner binder and toner
First Claim
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1. A toner binder comprising:
- a non-linear polyester modified resin (A),wherein the non-linear polyester modified resin (A) is a modified resin having one or more carbon-carbon bonds crosslinking polyesters,wherein the toner binder has a loss tangent tan δ
of 2 to 20 in the entire temperature range of 110°
C. to 130°
C.,wherein the polyester comprises a polyester (A1) having carbon-carbon double bonds, and the polyester (A1) having carbon-carbon double bonds has a glass transition temperature TgA1 of −
35°
C. to 43°
C.
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Abstract
An object of the present invention is to provide a toner binder and a toner that maintains offset resistance while having high gloss and that is excellent in low-temperature fixability, grindability, image strength, and heat-resistant storage stability. The toner binder of the present invention is a toner binder containing a non-linear polyester modified resin (A), wherein the non-linear polyester modified resin (A) is a modified resin having one or more carbon-carbon bonds crosslinking polyesters, and the toner binder has a loss tangent tan δ of 2 to 20 in the entire temperature range of 110° C. to 130° C.
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Citations
15 Claims
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1. A toner binder comprising:
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a non-linear polyester modified resin (A), wherein the non-linear polyester modified resin (A) is a modified resin having one or more carbon-carbon bonds crosslinking polyesters, wherein the toner binder has a loss tangent tan δ
of 2 to 20 in the entire temperature range of 110°
C. to 130°
C.,wherein the polyester comprises a polyester (A1) having carbon-carbon double bonds, and the polyester (A1) having carbon-carbon double bonds has a glass transition temperature TgA1 of −
35°
C. to 43°
C. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification