Title:
INK COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2022/107732
Kind Code:
A1
Abstract:
Provided is an ink composition able to yield a printed object having high weathering resistance. This ink composition is an active energy ray curing type ink composition that is discharged using an inkjet method. The ink composition contains a polymerizable compound, an ultraviolet radiation absorber and an antioxidant. The ultraviolet radiation absorber has a maximum absorption wavelength within the range 315-400 nm. A medium containing the ultraviolet radiation absorber at a concentration of 20 ppm has an absorbance area Ab of 25.0 or more at wavelengths within the range of 315-400 nm.
Inventors:
INUMARU MASAKI (JP)
SAITO YASUMA (JP)
UTAKA KOUJUN (JP)
IWASAWA KARUNA (JP)
SAITO YASUMA (JP)
UTAKA KOUJUN (JP)
IWASAWA KARUNA (JP)
Application Number:
PCT/JP2021/041961
Publication Date:
May 27, 2022
Filing Date:
November 15, 2021
Export Citation:
Assignee:
DNP FINE CHEMICALS CO LTD (JP)
International Classes:
C09D11/38; B41J2/01; B41M5/00; C09D11/30
Domestic Patent References:
| WO2018070438A1 | 2018-04-19 |
Foreign References:
| JP2012241057A | 2012-12-10 | |||
| JP2018100353A | 2018-06-28 | |||
| JP2018021352A | 2018-02-08 | |||
| JP2019505648A | 2019-02-28 | |||
| JP2019183374A | 2019-10-24 | |||
| JP2012214603A | 2012-11-08 |
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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