Color ribbon for thermo-sublimation print, method for the manufacture of same and its application

• US 6,380,131 B2
• Filed: 03/31/1998
• Issued: 04/30/2002
• Est. Priority Date: 04/01/1997
• Status: Expired due to Fees

• Current Assignee: Pelikan Produktions AG
• Original Assignee: Pelikan Produktions AG
• Inventors: Krauter, Henrich, Griebel, Thomas
• Primary Examiner(s): Hess, Bruce H.
• Application Number:
  US09/050,929
• Publication Number:
  US 20010016556A1
• Time in Patent Office: 1,491 Days
• Field of Search: 847/1, 428/195, 428/447, 428/913, 428/914, 503/227, 427/152
• US Class Current: 503/227
• CPC Class Codes: B41M 2205/30 Thermal donors, e.g. thermal ribbons
• CPC Class Codes: B41M 5/395 Macromolecular additives, e.g. binders
• CPC Class Codes: B41M 5/41 Base layers supports or substrates
• CPC Class Codes: B41M 5/423 characterised by non-macromolecular compounds, e.g. waxes
• CPC Class Codes: B41M 5/44 characterised by the macromolecular compounds
• CPC Class Codes: B41M 5/443 Silicon-containing polymers, e.g. silicones, siloxanes
• CPC Class Codes: B41M 5/5254 characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
• CPC Class Codes: B41M 5/5272 Polyesters; Polycarbonates
• CPC Class Codes: B41M 5/5281 Polyurethanes or polyureas
• CPC Class Codes: Y10S 428/913 Material designed to be responsive to temperature, light, moisture
• CPC Class Codes: Y10S 428/914 Transfer or decalcomania

Abstract

Description of a color ribbon for thermo-sublimation print, comprising a carrier and a color layer formed on the carrier, with a sublimeable coloring substance disperse in a polymer binding agent, whereby a top coat is located on the color layer which contains a water-soluble cellulose ether. The cellulose ether preferably contains C₁-C₄-alkyl- or C₁-C₄-alkyl-hydroxyalkyl remnants and is specifically. Methyl-hydroxy-ethyl cellulose. The color ribbon has the advantage that the transferred color substance volume is selectively reduced with low print energies, that inside the ribbon spool there is no unwelcome color substance transfer onto the neighboring loops and that during the printing procedure there is no agglutination between the color layer of the color ribbon and the color receiving layer of the receiver foil.

Claims