IP Library Granted Patent US 11,169,459
Granted Patent B2
US 11,169,459 · App. 16/926,845 · Granted Nov 9, 2021

Resin particle set

Inventors: Tomoaki Tanaka (Kanagawa, JP); Tsuyoshi Murakami (Kanagawa, JP); Kana Yoshida (Kanagawa, JP)
Assignee: FUJIFILM Business Innovation Corp.
G03G9/0928G03G9/0819G03G9/0827G03G9/08755G03G9/092G03G9/0906G03G9/0926
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Quick Facts
Patent No.
US 11,169,459
App. No.
16/926,845
Granted
Nov 9, 2021
Kind
B2
Abstract

A resin particle set includes a fluorescent color resin particle containing a fluorescent coloring agent; and a colored resin particle containing a colored coloring agent, wherein a volume average particle diameter of the fluorescent color resin particles is larger than a volume average particle diameter of the colored resin particles, and an average circularity of the fluorescent color resin particles is 0.93 or more.

Claims (27)

1. A resin particle set comprising:

a fluorescent color resin particle containing a fluorescent coloring agent; and

a colored resin particle containing a colored coloring agent,

wherein a volume average particle diameter of the fluorescent color resin particles is larger than a volume average particle diameter of the colored resin particles, and

an average circularity of the fluorescent color resin particles is 0.93 or more.

2. The resin particle set according to claim 1 ,

wherein a volume proportion of the resin particles having a particle diameter of 4 μm or less in the fluorescent color resin particles is 6% or less.

3. The resin particle set according to claim 2 ,

wherein a value of (volume average particle diameter of the fluorescent color resin particles)−(volume average particle diameter of the colored resin particles) is 0.3 μm or more.

4. The resin particle set according to claim 3 ,

wherein the fluorescent coloring agent is a fluorescent dye.

5. The resin particle set according to claim 4 ,

wherein the fluorescent dye contains a fluorescent dye having a maximum fluorescence wavelength in a range of from 580 nm to 650 nm.

6. The resin particle set according to claim 2 ,

wherein the fluorescent coloring agent is a fluorescent dye.

7. The resin particle set according to claim 6 ,

wherein the fluorescent dye contains a fluorescent dye having a maximum fluorescence wavelength in a range of from 580 nm to 650 nm.

8. The resin particle set according to claim 1 ,

wherein a value of (volume average particle diameter of the fluorescent color resin particles)−(volume average particle diameter of the colored resin particles) is 0.3 μm or more.

9. The resin particle set according to claim 8 ,

wherein the fluorescent coloring agent is a fluorescent dye.

10. The resin particle set according to claim 9 ,

wherein the fluorescent dye contains a fluorescent dye having a maximum fluorescence wavelength in a range of from 580 nm to 650 nm.

11. The resin particle set according to claim 1 ,

wherein the fluorescent coloring agent is a fluorescent dye.

12. The resin particle set according to claim 11 ,

wherein the fluorescent dye contains a fluorescent dye having a maximum fluorescence wavelength in a range of from 580 nm to 650 nm.

Assignments (2)
CHANGE OF NAME Recorded Apr 28, 2021
From: FUJI XEROX CO., LTD.
To: FUJIFILM BUSINESS INNOVATION CORP.
Reel/Frame 056078/0098 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 13, 2020
From: TANAKA, TOMOAKI; MURAKAMI, TSUYOSHI; YOSHIDA, KANA
To: FUJI XEROX CO., LTD.
Reel/Frame 053186/0573 →
Priority Claims (1)
JP JP2020-024708 · Feb 17, 2020 · national
Continuity (1)
Related Publication 20210255559A1 · Aug 19, 2021