Patent · US Active

Heat-sensitive recording material with barrier coating

US9050844B2 · kind B2 · utility

0Cited by

3References

17Claims

0Family size

Assignee

MITSUBISHI HITEC PAPER EUROPE GMBH · DE

Inventors

Ulf Behrens · Harrislee, DE
Gerhard Stork · Flensburg, DE
Svenja Eisernitz · Flensburg, DE
Matthias Marx · Fürstenfeldbruck, DE

Key dates

Filing date	Sep 13, 2010
Grant date	Jun 9, 2015
Priority date	—
Expiry date	Aug 14, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41M2205/40
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A heat-sensitive recording material includes at least a substrate, a heat-sensitive recording layer arranged on the front side of the substrate and has at least one color former and at least one color acceptor, wherein the color former and color acceptor react with one another under the action of heat to form color, a protective layer covering the heat-sensitive recording layer, a barrier coating which contains ethylene vinyl alcohol copolymer (EVOH) and suitable for protecting the heat-sensitive recording layer against penetration of chemicals causing uncontrolled desensitizing reactions and color reactions in the heat-sensitive recording layer, wherein the barrier coating is arranged between the substrate and the heat-sensitive recording layer, and a tincture, as authenticating security feature, introduced into the substrate and/or applied to at least one side of the substrate.

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