RECORDING MEDIUM AND INFRARED READING METHOD

• US 20120199731A1
• Filed: 08/24/2011
• Published: 08/09/2012
• Est. Priority Date: 02/08/2011
• Status: Active Grant

• Current Assignee: Fujifilm Business Innovation Corp. (Fujifilm Holdings Corporation)
• Original Assignee: Fuji Xerox Company Limited (Xerox Holdings Corp.)
• Inventors: ITO, Yuka, HASEGAWA, Shinji, TIAN, Minquan, NAKASO, Suguru, FURUKI, Makoto
• Granted Patent: US 8,859,952 B2
• Time in Patent Office: Days
• US Class Current: 250/271
• CPC Class Codes: G03G 15/5062 by measuring the characteristics of an image on the copy material
• CPC Class Codes: G03G 2215/00067 on recording medium
• CPC Class Codes: G03G 2215/00755 of sheet toner density
• CPC Class Codes: G03G 9/0821 characterised by physical parameters magnetic parameters G03G9/083
• CPC Class Codes: G03G 9/08755 Polyesters
• CPC Class Codes: G03G 9/0906 Organic dyes
• CPC Class Codes: G03G 9/0924 Dyes characterised by specific substituents
• CPC Class Codes: G03G 9/0926 characterised by physical or chemical properties

Abstract

A recording medium includes a surface in which an infrared absorptance is less than a threshold value; and plural dot images that records information by an arrangement pattern formed on the surface, in which the infrared absorptance is equal to or more than the threshold value, and a specular gloss to infrared rays is equal to or less than 22%.

Claims

1. A recording medium comprising:

a surface in which an infrared absorptance is less than a threshold value; and

a plurality of dot images that records information by an arrangement pattern formed on the surface, in which the infrared absorptance is equal to or more than the threshold value, and a specular gloss to infrared rays is equal to or less than 22%.

2. The recording medium according to claim 1,

wherein the threshold value of the infrared absorptance is 30%.

3. The recording medium according to claim 1,

wherein the threshold value of the infrared absorptance is 7%.

4. The recording medium according to claim 1,

wherein the dot images are formed with an infrared absorbing toner.

5. The recording medium according to claim 4,

wherein the infrared absorbing toner contains a perimidine-based squarylium dye.

6. The recording medium according to claim 4,

wherein the infrared absorbing toner includes a resin containing a metal element having two valences or more.

7. The recording medium according to claim 1,

wherein the plurality of dot images has a specular gloss of 15% or less.

8. The recording medium according to claim 4,

wherein the infrared absorbing toner includes a resin containing inorganic fine particles.

9. The recording medium according to claim 1,

wherein the dot images are spherical or rectangular.

10. An infrared reading method comprising:

forming a plurality of dot images on a recording medium having a surface in which an infrared absorptance is less than a threshold value, and in which the infrared absorptance is equal to or more than the threshold value, and a specular gloss to infrared rays is equal to or less than 22%;

irradiating the recording medium with infrared rays; and

reading the dot images using a sensor that detects infrared rays reflected from the recording medium.

11. The infrared reading method according to claim 10,

wherein the recording medium is a recording medium having a surface in which the infrared absorptance is less than 30%.

12. The infrared reading method according to claim 10,

wherein the recording medium is a recording medium in which the infrared absorptance is less than 7%.

13. The infrared reading method according to claim 10,

wherein the dot images are formed with an infrared absorbing toner.

14. The infrared reading method according to claim 13,

wherein the infrared absorbing toner contains a perimidine-based squarylium dye.