Toner
First Claim
1. A toner comprising a crystalline resin and an amorphous resin,whereina standard deviation of hydrogen nuclear relaxation times (HT1ρ
- -C) of the toner as measured by solid-state 13C-NMR is at least 0.0 and not more than 5.0, anda hydrogen nuclear relaxation time (HT1ρ
-C1) of a 13C peak with the longest relaxation time out of the hydrogen nuclear relaxation times (HT1ρ
-C) anda hydrogen nuclear relaxation time (HT1ρ
-A1) of a 13C peak with the shortest relaxation time out of hydrogen nuclear relaxation times (HT1ρ
-A)satisfy the following Formula (1);
3.0≦
{(HT1ρ
-C1)/(HT1ρ
-A1)}≦
6.0
(Formula
1)the hydrogen nuclear relaxation times (HT1ρ
-C) being obtained by solid-state 13C-NMR (CP/MAS) measurement of 13C peaks derived from the crystalline resin,the 13C peaks derived from the crystalline resin being obtained by;
measuring the toner using solid-state 13C-NMR (DD/MAS),arranging peak intensity of 13C peaks derived from the crystalline resin in descending order,selecting 13C peaks starting with a 13C peak with the highest peak intensity and ending with a 13C peak at which the ratio of a cumulative value of the integral intensity of the 13C peak to a total value of the integral intensities of all 13C peaks reaches 90%,while the hydrogen nuclear relaxation times (HT1ρ
-A) being obtained by solid-state 13C-NMR (CP/MAS) measurement of all of 13C peaks derived from the amorphous resin,the 13C peaks derived from the amorphous resin being obtained by measuring the toner using solid-state 13C-NMR (DD/MAS).
1 Assignment
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Accused Products
Abstract
Provided is a toner that achieves low-temperature fixability, storability and charging performance all at a high level, in which a toner containing a crystalline resin and an amorphous resin, wherein a standard deviation of hydrogen nuclear relaxation times (HT1ρ-C) of the toner as measured by solid-state 13C-NMR is from 0.0 to 5.0, and a hydrogen nuclear relaxation time (HT1ρ-C1) of a 13C peak with the longest relaxation time out of the hydrogen nuclear relaxation times (HT1ρ-C) and a hydrogen nuclear relaxation time (HT1ρ-A1) of a 13C peak with the shortest relaxation time out of the hydrogen nuclear relaxation times (HT1ρ-A) satisfy 3.0≦{(HT1ρ-C1)/(HT1ρ-A1)}≦6.0.
-
Citations
20 Claims
-
1. A toner comprising a crystalline resin and an amorphous resin,
wherein a standard deviation of hydrogen nuclear relaxation times (HT1ρ - -C) of the toner as measured by solid-state 13C-NMR is at least 0.0 and not more than 5.0, and
a hydrogen nuclear relaxation time (HT1ρ
-C1) of a 13C peak with the longest relaxation time out of the hydrogen nuclear relaxation times (HT1ρ
-C) anda hydrogen nuclear relaxation time (HT1ρ
-A1) of a 13C peak with the shortest relaxation time out of hydrogen nuclear relaxation times (HT1ρ
-A)satisfy the following Formula (1);
3.0≦
{(HT1ρ
-C1)/(HT1ρ
-A1)}≦
6.0
(Formula
1)the hydrogen nuclear relaxation times (HT1ρ
-C) being obtained by solid-state 13C-NMR (CP/MAS) measurement of 13C peaks derived from the crystalline resin,the 13C peaks derived from the crystalline resin being obtained by; measuring the toner using solid-state 13C-NMR (DD/MAS), arranging peak intensity of 13C peaks derived from the crystalline resin in descending order, selecting 13C peaks starting with a 13C peak with the highest peak intensity and ending with a 13C peak at which the ratio of a cumulative value of the integral intensity of the 13C peak to a total value of the integral intensities of all 13C peaks reaches 90%, while the hydrogen nuclear relaxation times (HT1ρ
-A) being obtained by solid-state 13C-NMR (CP/MAS) measurement of all of 13C peaks derived from the amorphous resin,the 13C peaks derived from the amorphous resin being obtained by measuring the toner using solid-state 13C-NMR (DD/MAS). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
- -C) of the toner as measured by solid-state 13C-NMR is at least 0.0 and not more than 5.0, and
Specification