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Patent Searching and Data


Title:
PIGMENT COMPOSITION AND AQUEOUS INK COMPOSITION FOR INKJET
Document Type and Number:
WIPO Patent Application WO/2017/002614
Kind Code:
A1
Abstract:
Provided are: an edible pigment composition which has a small average dispersed particle diameter of pigment and excellent dispersibility, and which is able to be directly printed by an inkjet method on tablets and the like of pharmaceutical products, food and the like; and an aqueous ink composition for inkjet. A pigment composition according to the present invention is characterized by containing a colored pigment formed from iron oxide and a sodium polyacrylate having a mass average molecular weight of 1,500-10,000, and is also characterized in that: the content ratio of the colored pigment formed from iron oxide to the sodium polyacrylate is from 1:0.05 to 1:1.5 on a mass basis; and the average dispersed particle diameter D50 of the colored pigment formed from iron oxide is from 10 nm to 300 nm.

Inventors:
SAGARA SONOKO (JP)
FUJIMORI YOSHIHISA (JP)
MORIKAWA SOICHIRO (JP)
NISHIKUBO HIROAKI (JP)
KOJIMA SHUJI (JP)
Application Number:
PCT/JP2016/067743
Publication Date:
January 05, 2017
Filing Date:
June 15, 2016
Export Citation:
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Assignee:
SCREEN HOLDINGS CO LTD (JP)
International Classes:
C09D17/00; A61K9/44; A61K47/32; B41M5/00; C09D11/326; B41F17/36
Foreign References:
JP2006506489A2006-02-23
JP2001271007A2001-10-02
JP2014101298A2014-06-05
JP2014511324A2014-05-15
JP2002316474A2002-10-29
JP2015000968A2015-01-05
JP2006169325A2006-06-29
Attorney, Agent or Firm:
KOYAMA Yasushi (JP)
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