Positive electrified charge control agent and positive electrified toner for developing electrostatic image

Abstract

A positive electrified charge control agent comprising a silicon complex compound of an effective component represented by the following chemical formula (I) and/or chemical formula (II)

Description

BRIEF EXPLANATION OF THE DRAWINGS

FIG. 1 is a figure showing a measurement result by a liquid chromatography mass spectrometric analysis of an intermediate of a silicon complex compound of Compound Example 1 comprised in a positive electrified charge control agent to which the present invention is applied.

FIG. 2 is a figure showing a measurement result of one of peak by a liquid chromatography mass spectrometric analysis of a silicon complex compound of Compound Example 1 comprised in a positive electrified charge control agent to which the present invention is applied.

FIG. 3 is a figure showing a measurement result of another peak by a liquid chromatography mass spectrometric analysis of a silicon complex compound of Compound Example 1 comprised in a positive electrified charge control agent to which the present invention is applied.

FIG. 4 is a figure showing a measurement result by a liquid chromatography mass spectrometric analysis of an intermediate of a silicon complex compound of Compound Example 27 comprised in a positive electrified charge control agent to which the present invention is applied.

FIG. 5 is a figure showing a measurement result of one of peak by a liquid chromatography mass spectrometric analysis of a silicon complex compound of Compound Example 27 comprised in a positive electrified charge control agent to which the present invention is applied.

FIG. 6 is a figure showing a measurement result of another peak by a liquid chromatography mass spectrometric analysis of a silicon complex compound of Compound Example 27 comprised in a positive electrified charge control agent to which the present invention is applied.

Claims

1. A positive electrified charge control agent comprising a silicon complex compound of an effective component represented by the following chemical formula (I) and/or chemical formula (II)

2. The positive electrified charge control agent according to claim 1, wherein the group of

3. The positive electrified charge control agent according to claim 1, wherein said silicon complex compound represented by the chemical formula (I) is a compound obtained by an ion-exchanging reaction of a silicon complex salt represented by the following chemical formula (V)

4. The positive electrified charge control agent according to claim 1, wherein a content of allowable residual halogen in the silicon complex compound represented by the chemical formula (I) or the chemical formula (II) is at most 0.2%.

5. The positive electrified charge control agent according to claim 1, wherein a rate of weight-decrease of the silicon complex compound represented by the chemical formula (I) or the chemical formula (II) after heating for 2 hours under 180° C. is at most 10.0%.

6. The positive electrified charge control agent according to claim 1, wherein a volume resistivity of the silicon complex compound represented by the chemical formula (I) or the chemical formula (II) is 1.0×1013 to 5.0×1015Ω·cm.

7. A positive electrified toner for developing an electrostatic image comprising a positive electrified charge control agent including a silicon complex compound of an effective component represented by the following chemical formula (I) and/or chemical formula (II)

8. The positive electrified toner for developing the electrostatic image according to claim 7, wherein the group of

9. The positive electrified toner for developing the electrostatic image according to claim 7, wherein said silicon complex compound represented by the chemical formula (I) is a compound obtained by an ion-exchanging reaction of a silicon complex salt represented by the following chemical formula (V)

10. The positive electrified toner for developing the electrostatic image according to claim 7, wherein a content of allowable residual halogen in the silicon complex compound represented by the chemical formula (I) or the chemical formula (II) is at most 0.2%.

11. The positive electrified toner for developing the electrostatic image according to claim 7, wherein a rate of weight-decrease of the silicon complex compound represented by the chemical formula (I) or the chemical formula (II) after heating for 2 hours under 180° C. is at most 10.0%.

12. The positive electrified toner for developing the electrostatic image according to claim 7, wherein a volume resistivity of the silicon complex compound represented by the chemical formula (I) or the chemical formula (II) is 1.0×1013 to 5.0×1015 Ω·cm.

13. The positive electrified toner for developing the electrostatic image according to claim 7, wherein 0.1 to 10 parts by weight of the positive electrified charge control agent and 100 parts by weight of a resin for the toner are included.

14. A charge control method of a positive electrified toner for developing an electrostatic image comprising a step for making the toner positively electrified by friction, wherein the toner includes a component of a positive electrified charge control agent comprising a silicon complex compound of an effective component represented by the following chemical formula (I) and/or chemical formula (II)