Offset printing method using inkjet system and product printed thereby
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United States of America Patent
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Issued Date -
Aug 20, 2009
app pub date -
Oct 5, 2005
filing date -
Nov 4, 2004
priority date (Note) -
Abandoned
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Abstract
An offset printing method using an inkjet system, and a printed product printed thereby. The offset printing method includes a first step of printing a UV ink image on a flat original plate by inkjet using UV-ink, a second step of irradiating the UV ink image with a UV or an electron beam while or immediately after printing the UV ink image, so as to bring the UV ink image into a semi-dried state, a third step of transferring the semi-dried UV ink image to a surface of an elastic blanket, a fourth step of offset-printing the UV ink image transferred to the elastic blanket onto a to-be-printed product, and a step of drying and fixing the offset-printed UV ink image. Viscosity of the UV ink in the first step is set as 3-100 mPaS at 30° C., and viscosity of the UV ink in the second step is set as viscosity equivalent to 0.1-300 PaS at 25° C. in standard UV ink.
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