Optical recording medium

Details Optical recording medium Optical recording medium

2006-05-30

2006-05-30

Mulvaney, Elizabeth (Department: 1774)

Stock material or miscellaneous articles

Circular sheet or circular blank

C428S064400, C430S270110

Reexamination Certificate

active

07052759

ABSTRACT:
An optical recording medium of the present invention includes a disk body and an ink-receiving layer disposed on a label surface of the disk body, wherein the ink-receiving layer has a brightness of8or more, a chroma of 4 or less, and an average surface roughness (Ra) of 0.1 μm or less. Therefore, a colored layer of white ink need not be provided below the ink-receiving layer to simplify the manufacturing process. Furthermore, even when the ink-receiving layer is formed by a spin coating or slit coating process in which the surface quality of an underlying layer is greatly reflected, therefore, the average surface roughness (Ra) of the ink-receiving layer can be significantly decreased. Thus, printing by an ink jet printer can produce a color and brilliance close to those of a silver salt photograph.

REFERENCES:
patent: 5820961 (1998-10-01), Maruyama et al.
patent: 5972457 (1999-10-01), Matsuishi et al.
patent: 2001/0022769 (2001-09-01), Waki et al.
patent: 2004/0072032 (2004-04-01), Ohishi
patent: 2005/0238837 (2005-10-01), Satou et al.
patent: 2002-237103 (2002-08-01), None

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