Title:
INK SET
Document Type and Number:
WIPO Patent Application WO/2022/230259
Kind Code:
A1
Abstract:
The present invention addresses the problem of obtaining an ink set for forming images of excellent quality with favorable dot expandability of a printing unit, even in the presence of an acid atmosphere produced around an ink nozzle, etc. when a volatile acid is used in a pretreatment solution. Provided as a solution is an ink set comprising: a first ink composition that contains 1.0 mass% or more, in the ink composition, of an alkali-soluble resin or a crosslinked product thereof that has an acid value of 200 mgKOH/g or higher, along with a white pigment, and furthermore contains water; and a second ink composition that is for further printing onto a printing layer made of the first inkjet printing ink composition, that contains 1.0 mass% or more, in the ink composition, of an alkali-soluble resin or a crosslinked product thereof that has an acid value of 200 mgKOH/g or higher, along with a color pigment, and that furthermore contains an amphoteric surfactant, a water-dispersible resin, and water.
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Inventors:
KONISHI HIROYUKI (JP)
NODA RYUTA (JP)
MURAKAMI MASAKI (JP)
UEKI MASAHIRO (JP)
HIRAKAWA SATOSHI (JP)
NODA RYUTA (JP)
MURAKAMI MASAKI (JP)
UEKI MASAHIRO (JP)
HIRAKAWA SATOSHI (JP)
Application Number:
PCT/JP2022/001989
Publication Date:
November 03, 2022
Filing Date:
January 20, 2022
Export Citation:
Assignee:
SAKATA INX CORP (JP)
International Classes:
C09D11/40; B41J2/01; B41M5/00; D06P5/30
Domestic Patent References:
| WO2009084600A1 | 2009-07-09 |
Foreign References:
| JP2019111770A | 2019-07-11 | |||
| JP6202162B2 | 2017-09-27 | |||
| JPH11263930A | 1999-09-28 | |||
| JP2001187854A | 2001-07-10 | |||
| JP6919082B1 | 2021-08-11 | |||
| JP2019177510A | 2019-10-17 | |||
| JP2005001259A | 2005-01-06 | |||
| JP2000094825A | 2000-04-04 |
Other References:
P. A. LOVELLM. S. EL-AASSER: "Emulsion Polymerization and Emulsion Polymer", 1977, JOHN WILEY & SONS
Attorney, Agent or Firm:
YAMADA, Yasuyuki et al. (JP)
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