Patent · US Expired

Prints and production method thereof

US4869532A · kind A · utility

46Cited by
8References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 29, 1987
Grant dateSep 26, 1989
Priority date
Expiry dateSep 29, 2007

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB41M3/14
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

A print is produced by printing or coating an infrared reflective coloring agent and another printing ink containing an infrared absorptive coloring agent in combination on a base material. The print therefore contains visually-recognizable information along with other information which is recognizable by infrared rays.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.