INK SET AND PRINTING METHOD - DAINIPPON TORYO KK

Title:

INK SET AND PRINTING METHOD

Document Type and Number:

WIPO Patent Application WO/2020/017603

Kind Code:

A1

Abstract:

The present invention relates to an ink set which gives printed ink layers that are inhibited from expanding or shrinking and with which highly precise images can be stably printed. More specifically, the ink set comprises a water-based coloring ink and a water-based coating fluid functioning to coagulate the water-based coloring ink, and is characterized in that the water-based coating fluid has a lower 25°C dynamic surface tension at a surface age of 100 ms than the water-based coloring ink, the difference between the 25°C dynamic surface tension at a surface age of 100 ms of the water-based coating fluid and the 25°C dynamic surface tension at a surface age of 100 ms of the water-based coloring ink is 5-20 mN/m, and the 25°C dynamic surface tension at a surface age of 100 ms of the water-based coating fluid is in the range of 20-30 mN/m.

Inventors:

SOHARA YUSUKE (JP)

Application Number:

PCT/JP2019/028323

Publication Date:

January 23, 2020

Filing Date:

July 18, 2019

Export Citation:

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Assignee:

DAINIPPON TORYO KK (JP)

International Classes:

C09D11/54; B41M5/00; C09D11/322

Foreign References:

JP2017024365A	2017-02-02
JP2009066768A	2009-04-02
JP2007230232A	2007-09-13
JP2002211106A	2002-07-31
JP2019107875A	2019-07-04
JPH0657192A	1994-03-01
JP2009190379A	2009-08-27
JP2017222793A	2017-12-21
JP2004010833A	2004-01-15
JP2017024365A	2017-02-02
JP2010214883A	2010-09-30

Other References: