Patent · US Active

Method for creating a hidden pattern

US10618330B2 · kind B2 · utility

1Cited by
0References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 9, 2016
Grant dateApr 14, 2020
Priority date
Expiry dateMar 9, 2036

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB42D25/29
  • WIPO fieldOther consumer goods
  • WIPO sectorOther fields

Abstract

The present invention relates to a method for creating a hidden pattern on a substrate, wherein a liquid treatment composition comprising at least one acid is deposited by inkjet printing onto a substrate, which comprises at least one external surface comprising a salifiable alkaline or alkaline earth compound.

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