Heat transfer decorations with patterned metallization

• US 4,902,364 A
• Filed: 08/02/1988
• Issued: 02/20/1990
• Est. Priority Date: 08/02/1988
• Status: Expired due to Fees

• Current Assignee: Dennison Manufacturing Company Framingham MA
• Original Assignee: Dennison Manufacturing Company (Avery Dennison Corporation)
• Inventors: Parker, Tim, Benoit, Dennis R.
• Primary Examiner(s): Robinson, Ellis P.
• Assistant Examiner(s): RYAN, PATRICK J
• Application Number:
  US07/227,217
• Time in Patent Office: 567 Days
• Field of Search: 428/209, 428/913, 428/914, 427/145.7, 156/233, 156/234, 156/241
• US Class Current: 156/233
• CPC Class Codes: B41M 3/12 Transfer pictures or the like, e.g. decalcomanias processes for producing decorative surface effects B44C1/00; B41M5/0256 takes precedence
• CPC Class Codes: B44C 1/1716 Decalcomanias provided with a particular decorative layer, e.g. specially adapted to allow the formation of a metallic or dyestuff layer on a substrate unsuitable for direct deposition
• CPC Class Codes: B44C 1/172 Decalcomanias provided with a layer being specially adapted to facilitate their release from a temporary carrier
• CPC Class Codes: B44C 1/1729 Hot stamping techniques
• CPC Class Codes: Y10S 428/913 Material designed to be responsive to temperature, light, moisture
• CPC Class Codes: Y10T 428/24917 including metal layer

Abstract

A metallized laminate and process of manufacture wherein a metallic layer or underlying ink layer appears in a pattern on the laminate. The method in a specific embodiment involves the steps of forming a laminate by coating a heat stable release coat onto a carrier sheet; coating an ink layer in a pattern on the heat stable release coating so that at least portions of the release coat remain uncovered with ink, and applying a metallic layer over the release coat so that at least a portion of the metallic layer is in direct contact with and adheres directly to the release coat. Portions of the metallic layer may be removed by an etchant. A heat activatable adhesive layer is applied over the metallic layer. The laminate so formed is heat transferable from the carrier sheet to an article.

Claims

1. A method of transferring a design to an article comprising the steps of:

(a) coating a heat stable release coating onto a carrier sheet;

(b) coating an ink layer in a pattern on the heat stable release coating so that at least portions of the release coating remain uncovered with ink;

(c) applying a metallic layer over the release coating so that at least a portion of the metallic layer is in direct contact with and adheres directly to the release coating;

(d) applying a heat activatable adhesive layer over the metallic layer, said release layer, ink layer and metallic layer forming a transferable laminate,

(e) transferring said transferable laminate from the carrier to an article at heat transfer temperatures in a range from 200°

F. to 500°

F., the transferred laminate on the article having a bright metallic appearance.

2. A method, as in claim 1, wherein the carrier comprises polyethyleneterephthalate.

3. A method as in claim 2 wherein the heat stable release coating comprises polymethylmethacrylate.

4. A method as in claim 1 wherein the release coating comprises polyvinyldifluoride.

5. A method as in claim 1 wherein the release coating comprises polyethersulfone.

6. A method as in claim 1 wherein the carrier comprises polyethylene and the release coating comprises polyethersulfone.

7. A method as in claim 1 wherein the carrier comprises polypropylene and the release coating comprises polyethersulfone.

8. A method of transferring a design to an article comprising the steps of:

(a) coating a heat stable release coating onto a carrier sheet, said carrier sheet comprising polyethylene terephthalate and said heat stable release coating comprising polyethersulfone;

(b) coating an ink layer in a pattern on the heat stable release coating so that at least portions of the release coating remain uncovered with ink;

(c) applying a metallic layer over the release coating so that at least a portion of the metallic layer is in direct contact with and adheres directly to the release coating;

(d) applying an etchant resistant coating over portions of said metallic layer so that other portions of the metallic layer remain exposed, said etchant resistant coating selected from the group consisting of polyethersulfone, polyamide lacquer and polyvinylchloride;

(e) applying an etchant coating in contact with said etchant resistant coating and said exposed metallic portions, said etchant coating removing said exposed metallic portions upon contact therewith;

(f) applying a heat activatable adhesive layer over the metallic layer, said release layer, ink layer and metallic layer forming a transferable laminate;

(g) transferring said transferable laminate from the carrier to an article at heat transfer temperatures in the range from 200°

F. to 500°

F., the transferred laminate on the article having a bright metallic appearance.