Patent · US Active

Colour laser marking

US9829784B2 · kind B2 · utility

0Cited by

2References

14Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Bart Waumans · Mortsel, BE
Paul Callant · Edegem, BE
Ingrid Geuens · Emblem, BE
Bart Aerts · Rumst, BE

Key dates

Filing date	Oct 10, 2013
Grant date	Nov 28, 2017
Priority date	—
Expiry date	Oct 10, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG03H1/0011
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A set of laminates includes an outer laminate and an inner laminate, wherein the outer laminate includes a transparent polymeric support including on a first side of the support a color laser markable layer containing an infrared dye having an absorption maximum λmax(IR-1) in the infrared region; wherein the inner laminate includes a transparent polymeric support including on, a first side of the transparent polymeric support, a color laser markable layer containing an infrared dye having an absorption maximum λmax(IR-2) in the infrared region and, on a second side of the transparent polymeric support, a color laser markable layer containing an infrared dye having an absorption maximum λmax(IR-3) in the infrared region; and the conditions a) and b) are satisfied:λmax(IR-1)>λmax(IR-2)>λmax(IR-3); and a)λmax(IR-1)>1100 nm and λmax(IR-3)<1000 nm. b)

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