Record receiver having plural interactive leaves or a colorless – Having plural interactive leaves
Reexamination Certificate
1999-05-17
2001-07-17
Hess, Bruce H. (Department: 1774)
Record receiver having plural interactive leaves or a colorless
Having plural interactive leaves
C428S195100, C428S409000
Reexamination Certificate
active
06261995
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to an intermediate transfer material used in a thermal transfer recording method, a thermal transfer image forming material, a thermal transfer recording material set in combination of those and an image forming method using the same.
BACKGROUND OF THE INVENTION
As a conventional thermal image transfer technique there is a method comprising bringing a recording material having on a substrate a layer containing a heat fusible or heat sublimable dye in close contact with an image receiving material, and applying heat source from the recording material side by means of a thermal head or an electric head controlled by an electric signal to transfer an image to the image receiving material.
Thermal transfer recording has advantages such as no noise, maintenance-free, low cost, ease of color image formation and digital recording capability, and is applied in various fields such as printers, recorders, facsimile and computer terminals.
Technique of printers employing a thermal head has been markedly progressed. As a printing method giving high resolution image and enabling variable contrast recording with area contrast alone, there is proposed a sub-scanning separation method disclosed in Japanese Patent Publication Open to Pulic Inspection (hereinafter referred to as JP-A) Nos. 4-19163 and 5-155057 or a heat assembling method disclosed in “Denshishashin Gakkai Nenjitaikai Jun. 6, 1992 Yokoshu”.
Recently, in the medical or printing fields requiring a high resolution image, there is proposed a dry recording method employing a high-power light source such as a laser. The example is disclosed in JP-A No. 59-143659.
An intermediate transfer material usable for a laser thermal transfer method is disclosed in JP-A No. 10-71775. In this embodiment, to prevent peeling static charge of a recording material, the surface specific resistance of a back coat is preferably to be not more than 2×10
9
&OHgr;. However, in fact, with this surface specific resistance, it is impossible to sufficiently prevent static charge occuring in transportation in an apparatus, and it was found that electrostatic adsorption at teflon processed portion equipped at transportation guide to prevent abration marks occurs and causes transpotation trouble. The transpotation trouble that gives a damage to a laser image with high resolution power has an unpermitted problem for a practical use. Furthermore, in cases where a thermal transfer image forming material containing a light-heat converting layer is manufactured, coatability is occasionally a problem caused by the difference between property of the light-heat converting layer and that of other layer.
SUMMARY OF THE INVENTION
Accordingly, in view of the foregoing, the present invention was accomplished. An object of the invention is to provide the intrermediate transfer material with improved peeling static charge and transportation property, specifically, to provide the intrermediate transfer material suitable for heat mode recording in which the intermediate transfer material is brought into close contact with recording material and then recording is carried out. Other object of the invention is to provide an improved coatability of the light-heat converting layer. Furthermore, other object of the invention is to provide the laser-melt thermal transfer recording material which satisfies the uniformity of image density of each first color and second color in wide proper exposure condition region (energy region where solid density is uniform and ablation does not occur). Using said laser-melt thermal transfer recording material, when recording plural colors, to estalish the proper exposure condition is easy. Inventors of the present invention found later mentioned fact after the repetition of examinations and applied this invention. That is, by establishing the absorption of the light-heat converting layer with every color of ink, difficulty on the operation of establishing the proper exposure condition when exposing is solved, and stable exposing condition can be obtained for every color, as a result, wide optimum recording condition in respect to ablation and sensitivity can be obtained.
REFERENCES:
patent: 5294592 (1994-03-01), Noguchi et al.
patent: 0 678 397 A (1995-10-01), None
patent: 0 800 927 A (1997-10-01), None
Patent Abstracts of Japan, vol. 1998, No. 08, 30 Jun. 1998 of JP 10 067180A (OJI Paper Co. Ltd.), 10 Mar. 1998.
Patent Abstracts of Japan, vol. 1999, No. 03, 31 Mar. 1999 of JP 10 329438A (Toray Ind Inc.), 15 Dec. 1998.
Akagi Kiyoshi
Kawakami Sota
Kishinami Katsuya
Nakajima Atsushi
Takeda Katsuyuki
Frishauf, Holtz Goodman, Langer & Chick, P.C.
Hess Bruce H.
Konica Corporation
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