Title:
COMPOSITION FOR ANTI-COUNTERFEIT INK, ANTI-COUNTERFEIT INK, PRINTED ARTICLE FOR COUNTERFEIT PREVENTION, AND METHOD OF PRODUCING COMPOSITION FOR ANTI-COUNTERFEIT INK
Document Type and Number:
WIPO Patent Application WO/2017/104855
Kind Code:
A1
Abstract:
Provided are a composition for anti-counterfeit ink, said composition transmitting visible light and absorbing infrared light, thereby allowing the authenticity of a printed article to be judged. Also provided are an anti-counterfeit ink and a printed article for counterfeit prevention. The present invention provides a composition for anti-counterfeit ink, said composition including ultrafine particles of a complex tungsten oxide, wherein, when the XRD peak intensity associated with a (220) surface of a silicon powder reference sample (640c, manufactured by NIST) is given a value of 1, the relative value of the XRD peak top intensity of the ultrafine particles of the complex tungsten oxide is 0.13 or greater. The present invention also provides an anti-counterfeit ink, a printed article for counterfeit prevention, and a method of producing the composition for anti-counterfeit ink.
Inventors:
TSUNEMATSU HIROFUMI (JP)
CHONAN TAKESHI (JP)
CHONAN TAKESHI (JP)
Application Number:
PCT/JP2016/087803
Publication Date:
June 22, 2017
Filing Date:
December 19, 2016
Export Citation:
Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
C09D11/50; C01G41/00
Domestic Patent References:
| WO2015015200A1 | 2015-02-05 | |||
| WO2016121801A1 | 2016-08-04 |
Foreign References:
| JP2015117353A | 2015-06-25 | |||
| JP2012532822A | 2012-12-20 | |||
| JP2012506463A | 2012-03-15 |
Other References:
See also references of EP 3392320A4
Attorney, Agent or Firm:
ANIYA Setuo (JP)
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