1 July 1990 New type of nonglossy image-receiving sheet
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Abstract
We have developed a new type of non-glossy surface of an image receiving sheet for a photothermographic color hardcopy system. There is a basic conflict in realizing uniform dye transfer with use of a receiving sheet having a matted surface, because when the degree of roughness exceeds a certain extent, uneven dye transfer readily takes place. It: has been solved by use of "microscopic" phase separation of a certain water-soluble polymer blend which constitutes the surface layer of the image receiving sheet. One of the preferable polymer blends for our purpose proved to be a ternary system, consisting of sodium salt of polymethacrylic acid (PMAA-Na), ammonium salt of polyacrylic acid (PAA-NH4) and water. Phase separation, which proceeded during the evaporation of water from the coated mixture, turned out to be of a spinodal decomposition type and thus capable of stably providing a desirable non-glossy surface.
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Toshiaki Aono, Takeshi Shibata, Yoshisada Nakamura, "New type of nonglossy image-receiving sheet", Proc. SPIE 1253, Hard Copy and Printing Materials, Media, and Processes, (1 July 1990); doi: 10.1117/12.19824; https://doi.org/10.1117/12.19824
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KEYWORDS
Polymers

Image processing

Hardcopies

Materials processing

Printing

Sodium

Image acquisition

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