Print medium, print medium unit and printing device

Patent metadata

Field	Value
Publication number	US-2016257130-A1
Application number	US-201514909107-A
Country	US
Kind code	A1
Filing date	Jul 28, 2015
Priority date	Aug 1, 2014
Publication date	Sep 8, 2016
Grant date	—

Abstract

Printing using two colors can be performed by a thermal print head. A base member, a thermosensitive color developing material layer formed by applying a thermosensitive color developing material on the entire surface of the base member, and a thermosensitive decolorizing material layer formed by applying a thermosensitive decolorizing material having a decolorizing temperature different from a color developing temperature of the thermosensitive color developing material on the entire surface of the thermosensitive color developing material layer, are provided.

First claim

1 . A print medium comprising:
a base member; a first thermosensitive color developing material layer formed of a first thermosensitive color developing material; and a second thermosensitive color developing material layer formed of a second thermosensitive color developing material having a different reaction temperature from a reaction temperature of the first thermosensitive color developing material.

2 . A print medium unit comprising:
the print medium according to claim 1 ; and an ink ribbon for thermally transferring an ink to the print medium; wherein the ink ribbon has a reaction temperature that is different from the reaction temperature of the first thermosensitive color developing material and different from a color developing temperature of the second thermosensitive color developing material.

3 . The print medium unit according to claim 2 , wherein the reaction temperature of the ink ribbon is higher than the reaction temperature of the first thermo sensitive color developing material and the reaction temperature of the second thermosensitive color developing material, and
the reaction temperature of the second thermosensitive color developing material is lower than the reaction temperature of the first thermosensitive color developing material.

4 . A print medium unit comprising:
a print medium having a base member and a first thermosensitive color developing material layer formed of a first thermosensitive color developing material; and an ink ribbon for thermally transferring an ink to the print medium; wherein the ink ribbon has a different reaction temperature from a reaction temperature of the first thermosensitive color developing material layer.

5 . A print medium unit comprising:
a print medium having a base member and a second thermosensitive color developing material layer formed of a second thermosensitive color developing material; and an ink ribbon for thermally transferring an ink to the print medium; wherein the ink ribbon has a different reaction temperature from a reaction temperature of the second thermosensitive color developing material layer.

6 . A printing device comprising:
the print medium unit according to claim 2 ; a setting section where the print medium unit is set; and a printing unit which performs print processing on the print medium of the print medium unit thus set, by a thermal print head.

Assignees

• Seiko Epson Corp

Inventors

• Aoyagi Naohiko

Classifications

• B41M5/382

  Contact thermal transfer or sublimation processes (sublistatic printing using a pre-formed image B41M5/035; ink-, dye- or pigment-receptive coatings B41M5/52) · CPC title

• B41J2/32

  using thermal heads · CPC title

• B41M5/30

  using chemical colour formers (B41M5/34 takes precedence) · CPC title

• B41M2205/04

  Direct thermal recording [DTR] · CPC title

• B41M5/34

  Multicolour thermography · CPC title