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Image processing method, and image processor

An image processing, image technology, applied in the direction of reproduction/marking method, thermography, printing, etc.

Inactive Publication Date: 2008-07-02
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, an image processing method that causes less deterioration of a thermoreversible recording medium even if image recording and erasing are repeated is insufficient, and further improvement and development are desired.

Method used

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  • Image processing method, and image processor
  • Image processing method, and image processor
  • Image processing method, and image processor

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

Image processing method of the first embodiment

[0086] In the image processing method of the first embodiment of the present invention, in at least one of the image forming step and the image erasing step, the thermoreversible recording medium is set at a position farther than the focus position of the laser beam, and image recording and At least one of image erasure. When the thermoreversible recording medium is set at a position farther than the focus position of the laser beam and image recording is performed, in the image erasing step, the thermoreversible recording medium does not have to be set at a position farther than the focus position of the laser beam, and it is possible to utilize Heat sources other than laser beams. Among various heat sources, in the case of irradiating a thermoreversible recording medium with a laser beam to heat it and erasing an image recorded on the thermoreversible recording medium in a short time, it is preferable to apply an infrared lam...

preparation Embodiment 1

[0422] A thermoreversible recording medium capable of reversibly changing the color tone between a transparent state and a colored state depending on temperature was produced as follows.

base

[0423] A white turbid polyester film (TETRON FILM U2L98W manufactured by TEIJIN DUPONT FILMS JAPAN LTD.) having a thickness of 125 μm was used as the base.

lower level

[0424] 30 parts by mass of styrene-butadiene copolymer (PA9159 manufactured by Nippon A&L Inc.), 12 parts by mass of polyvinyl alcohol resin (Poval PVA 103 manufactured by Kuraray Co. Ltd.), 20 parts by mass of hollow The particles (Microsphere-300 manufactured by Matsumoto Yushi-Seiyaku Co. Ltd) were added to 40 parts by mass of water to prepare a lower layer coating liquid.

[0425] Next, the obtained underlayer coating liquid was applied on the substrate surface using a wire bar, and the applied coating liquid was heated at 80° C. for 2 minutes and dried to form an underlayer having a thickness of 20 μm.

Rev...

preparation Embodiment 2

[0435] A thermoreversible recording medium capable of reversibly changing the color tone between a transparent state and a colored state depending on temperature is produced as follows.

base

[0436] A transparent PET film (Lumilar 175-T12 manufactured by Toray Industries, Inc.) having a thickness of 175 μm was used as the substrate.

Reversible thermosensitive recording layer (recording layer)

[0437]In a resin solution in which 26 parts by mass of a vinyl chloride copolymer (M110 manufactured by Zeon Corporation) was dissolved in 210 parts by mass of methyl ethyl ketone, 3 parts by mass of a vinyl chloride copolymer represented by the following structural formula ( 5) The low-molecular organic substance represented and 7 parts by mass of dococylbenenate. Ceramic beads with a diameter of 2 mm were placed in a glass bottle, and the prepared solution was poured into it. The solution was dispersed for 48 hours using a paint shaker (Asada Tekko Co. Ltd) to prepare a unifo...

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Abstract

The present invention provides an image processing method which includes any one of recording an image on a thermally reversible recording medium that can reversibly change any one of its transparency and color tone depending on temperature by irradiating and heating the thermally reversible recording medium with a laser beam, and erasing the image recorded on the thermally reversible recording medium by heating the thermally reversible recording medium, wherein in any one of the image recording and the image erasing, the thermally reversible recording medium is located at a position farther than a focal position of the laser beam, and at least any one of the image recording and the image erasing is performed.

Description

technical field [0001] The present invention relates to an image processing method and an image processing device applicable to the image processing method. Background technique [0002] Hitherto, image recording and image erasing on a thermoreversible recording medium (hereinafter sometimes simply referred to as "recording medium" or "medium") has been performed by a contact method in which a heating source is brought into contact with the thermoreversible recording medium to heat the medium. of. As the heat source, in the case of image recording, a thermal head is generally used, and in the case of image erasing, a heating roller, a ceramic heater or the like is used. [0003] This contact recording method is advantageous because when the thermoreversible recording medium is composed of a flexible material such as film and paper, by uniformly pressing a heat source on the thermoreversible recording medium using a platen, Uniform image recording and image erasing, and by ...

Claims

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Application Information

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IPC IPC(8): B41J2/475B41M5/36
CPCB41J2/4753B41M5/305
Inventor 川原真哉堀田吉彦石见知三
Owner RICOH KK
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