ACTIVE LIGHT-CURABLE INKJET INK AND IMAGE FORMATION METHOD USING SAME

WIPO Patent Application WO/2013/094198

A1

Provided is an active light-curable inkjet ink that undergoes sol-gel phase transfer and contains a dye, a gelling agent, a photopolymerization compound and a photopolymerization initiator. The active light-curable inkjet ink comprises a photopolymerizable compound A, which is a (meth)acrylate having hydroxyl groups; a photopolymerizable compound B, which is a (meth)acrylate compound having a molecular weight within a range of 300 to 1,500 and an intramolecular structure (-CH2-CH2-O-)m (where m is an integer between 3 and 14); and a (meth)acrylate compound C, which has a molecular weight within a range of 280 to 1,500 and a ClogP value within a range of 4 to 7. The ink contains, in terms of the mass of the entire ink, 1 to 15 mass% of photopolymerizable compound A, 30 to 70 mass% of photopolymerizable compound B, 10 to 40 mass% of photopolymerizable compound C, and 2 to 10 mass% of gelling agent.

IKEDA MASASHI
MASUMI SATOSHI
TAKABAYASHI TOSHIYUKI

PCT/JP2012/008130

June 27, 2013

December 19, 2012

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KONICA MINOLTA INC (JP)
IKEDA MASASHI
MASUMI SATOSHI
TAKABAYASHI TOSHIYUKI

C09D11/00; B41J2/01; B41M5/00

JP2011012256A	2011-01-20
JP2010275554A	2010-12-09
JP2009510184A	2009-03-12
JP2009041015A	2009-02-26
JP2007056232A	2007-03-08
JP2008213450A	2008-09-18
JP2005126507A	2005-05-19
JP2005255821A	2005-09-22

C. HANSCH; A. LEO: "Substituent Constants for Correlation Analysis in Chemistry and Biology", 1969, JOHN WILEY & SONS
"Imaging Yo Yuki Zairyo", 1993, BUNSHIN PUBLISHING, pages: 187 - 192
See also references of EP 2796517A4

WASHIDA, KIMIHITO (JP)
Koichi Washida (JP)

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