Title:
PRINTING INK SET, PRINTED MATTER, AND PACKAGING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/210260
Kind Code:
A1
Abstract:
A printing ink set comprising: a yellow ink comprising a dispersion medium and either an isoindoline compound represented by general formula (1) or C.I. Pigment Yellow 180; a cyan ink comprising a phthalocyanine pigment and a dispersion medium; a magenta ink A comprising C.I. Pigment Red 122 and a dispersion medium; and a magenta ink B comprising C.I. Pigment Violet 19 and a dispersion medium. In formula (1), R1 to R4 each independently represent a hydrogen atom, an alkyl group, or an alkoxy group, R5 and R6 each independently represent a hydrogen atom or an alkyl group, X1 represents -O- or -NH-, and R7 represents a hydrogen atom, an alkyl group, or an aryl group.
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Inventors:
SAKAMOTO SHOHEI (JP)
Application Number:
PCT/JP2023/013654
Publication Date:
November 02, 2023
Filing Date:
March 31, 2023
Export Citation:
Assignee:
TOYO INK SC HOLDINGS CO LTD (JP)
TOYOCOLOR CO LTD (JP)
TOYOCOLOR CO LTD (JP)
International Classes:
C09D11/037; C09B57/04; C09B67/20
Domestic Patent References:
| WO2005111159A1 | 2005-11-24 | |||
| WO1998047973A1 | 1998-10-29 | |||
| WO2022014635A1 | 2022-01-20 |
Foreign References:
| JP2000351928A | 2000-12-19 | |||
| JP6981562B1 | 2021-12-15 | |||
| JP2002220557A | 2002-08-09 | |||
| JP2011116876A | 2011-06-16 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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