Toner
First Claim
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1. A toner comprising:
- a toner particle that contains at least a resin component,the resin component containing;
a first resin as a major component, and a second resin,wherein;
the first resin is a polyester-type resin,the polyester-type resin has;
a terminal end at which an aliphatic compound has been condensed, andthe aliphatic compound being selected from the group consisting of;
an aliphatic monocarboxylic acid having a peak value of the number of carbon atom in the range from 25 to 102, andan aliphatic monoalcohol having a peak value of the number of carbon atom in the range from 25 to 102, andthe content of a long-chain aliphatic hydrocarbon group that originates with the aliphatic compound is from at least 0.1 mass % to not more than 20.0 mass % in the polyester-type resin,and wherein;
the second resin is a crystalline polyester resin, andin a total heat flow of the toner obtained by measuring the toner with a temperature-modulated differential scanning calorimeter,the toner hasan endothermic peak resulting from the crystalline polyester resin in the temperature range from at least 50.0°
C. to not more than 100.0°
C., andthe percentage of an endothermic quantity of the endothermic peak in a reversing heat flow with respect to an endothermic quantity of the endothermic peak in the total heat flow being at least 20.0%.
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Accused Products
Abstract
The toner includes a resin component containing a crystalline polyester resin and a polyester-type resin that has a long-chain monomer bonded by condensation at a terminal, the toner having, in a total heat flow measured by a temperature-modulated differential scanning calorimeter, an endothermic peak resulting from the crystalline polyester resin in a specific temperature range, and the percentage of the endothermic quantity of the endothermic peak in a reversing heat flow with respect to the endothermic quantity of the endothermic peak in the total heat flow being at least 20.0%.
38 Citations
10 Claims
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1. A toner comprising:
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a toner particle that contains at least a resin component, the resin component containing; a first resin as a major component, and a second resin, wherein; the first resin is a polyester-type resin, the polyester-type resin has; a terminal end at which an aliphatic compound has been condensed, and the aliphatic compound being selected from the group consisting of; an aliphatic monocarboxylic acid having a peak value of the number of carbon atom in the range from 25 to 102, and an aliphatic monoalcohol having a peak value of the number of carbon atom in the range from 25 to 102, and the content of a long-chain aliphatic hydrocarbon group that originates with the aliphatic compound is from at least 0.1 mass % to not more than 20.0 mass % in the polyester-type resin, and wherein; the second resin is a crystalline polyester resin, and in a total heat flow of the toner obtained by measuring the toner with a temperature-modulated differential scanning calorimeter, the toner has an endothermic peak resulting from the crystalline polyester resin in the temperature range from at least 50.0°
C. to not more than 100.0°
C., andthe percentage of an endothermic quantity of the endothermic peak in a reversing heat flow with respect to an endothermic quantity of the endothermic peak in the total heat flow being at least 20.0%. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A toner comprising:
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a toner particle that contains at least a resin component, the resin component containing; a first resin as a major component, and a second resin, wherein; the first resin is a polyester-type resin, the polyester-type resin has; a terminal end at which an aliphatic compound has been condensed, and the aliphatic compound being selected from the group consisting of; an aliphatic monocarboxylic acid having a peak value of the number of carbon atom in the range from 25 to 102, and an aliphatic monoalcohol having a peak value of the number of carbon atom in the range from 25 to 102, wherein the polyester-type resin is a hybrid resin in which a polyester segment and a vinylic polymer segment are chemically bonded, and wherein; the second resin is a crystalline polyester resin, and in a total heat flow of the toner obtained by measuring the toner with a temperature-modulated differential scanning calorimeter, the toner has an endothermic peak resulting from the crystalline polyester resin in the temperature range from at least 50.0°
C. to not more than 100.0°
C., andthe percentage of an endothermic quantity of the endothermic peak in a reversing heat flow with respect to an endothermic quantity of the endothermic peak in the total heat flow being at least 20.0%. - View Dependent Claims (10)
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Specification
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Current AssigneeCanon Ayutthaya Limited (Canon Inc.)
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Original AssigneeCanon Ayutthaya Limited (Canon Inc.)
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InventorsYoshiba, Daisuke, Yamazaki, Katsuhisa, Nishikawa, Koji, Nomura, Shotaro, Akiyama, Hiroki, Fujimoto, Masami
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Primary Examiner(s)Dote, Janis L
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Application NumberUS14/446,290Publication NumberTime in Patent Office658 DaysField of Search430/109.4US Class Current1/1CPC Class CodesG03G 9/0808 by dry mixing the toner com...G03G 9/0821 characterised by physical p...G03G 9/08755 PolyestersG03G 9/08786 Graft polymersG03G 9/08788 Block polymersG03G 9/08791 characterised by the presen...G03G 9/08795 characterised by their chem...G03G 9/08797 characterised by their phys...
