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Title:
LATENT IMAGE AQUEOUS INK COMPOSITION, USAGE METHOD AND PRINTED OBJECT THEREOF, PRINTED OBJECT OF SOLID PREPARATION, AND METHOD FOR PRINTING SOLID PREPARATION
Document Type and Number:
WIPO Patent Application WO/2018/186324
Kind Code:
A1
Abstract:
Provided are: a latent image aqueous ink composition, where a latent image obtained thereby has suppressed visibility in the visible light region, and the aqueous ink composition is capable of developing the latent image after irradiation with ultraviolet rays; and a usage method and printing object thereof. This latent image aqueous ink composition is optically transparent in the visible light region and is used for printing a latent image, wherein: the latent image aqueous ink composition includes at least a fluorescent agent that emits fluorescence in the visible light region due to irradiation with ultraviolet rays having a wavelength region in the range of 100-400 nm; the fluorescent agent is at least one selected from the group consisting of riboflavin, a riboflavin butyric acid ester, a riboflavin sodium phosphate ester, a cinnamic acid derivative, L-tryptophan, tyrosine, phenylalanine, quinine, quinine hydrochloride dihydrate, quinine sulfate, red no. 3, red no. 104, red no. 105, red no. 106, fumaric acid, chlorophyll, and rhodamine; and the fluorescent agent content is within a range of 0.001-10% by mass relative to the total mass of the latent image aqueous ink composition.

Inventors:
ENOMOTO YUTO (JP)
Application Number:
PCT/JP2018/014057
Publication Date:
October 11, 2018
Filing Date:
April 02, 2018
Export Citation:
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Assignee:
SCREEN HOLDINGS CO LTD (JP)
International Classes:
C09D11/50; A61K9/44; B41J2/01; B41M3/14; B41M5/00; C09D11/32; C09K11/06
Foreign References:
JP2007510796A2007-04-26
JP2009241404A2009-10-22
JP2011241312A2011-12-01
JPH0381376A1991-04-05
JPS5849765A1983-03-24
JP2017057344A2017-03-23
Attorney, Agent or Firm:
KOYAMA Yasushi (JP)
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