Image-forming toner, preparation method thereof, three-dimensional image-forming method and image-forming apparatus
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United States of America Patent
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Dec 26, 2000
Grant Date -
N/A
app pub date -
Sep 1, 1999
filing date -
Oct 26, 1998
priority date (Note) -
Expired
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Abstract
A three-dimensional image-forming toner containing at least a binder resin and a foaming agent in such a manner that the foaming agent is not substantially exposed to the surface of the toner. The foaming agent is preferably microcapsule particles containing a low-boiling substance such as, preferably, isobutane, and the shell material of the microcapsule is preferably a copolymer of vinylidene chloride and acrylonitrile. By using the image-forming toner, a three-dimensional image having a sufficient image thickness for being recognized as Braille types and a good fixing property to a recording medium such as a plain paper can be easily formed using an ordinary electrophotographic copying machine or printer.
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