IP Library Granted Patent US 7,329,631
Granted Patent B1
US 7,329,631 · App. 10/986,754 · Granted Feb 12, 2008

Method of applying an image to an object

Assignee: CafePress.com
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Quick Facts
Patent No.
US 7,329,631
App. No.
10/986,754
Granted
Feb 12, 2008
Kind
B1
Abstract

A method for applying sublimation ink to an object. An ink transfer medium is placed in contact with an object surface that is coated with a material receptive to the ink. Microwave susceptor material is placed over the transfer medium, and clamped onto the object surface. The clamped assembly is energized in a microwave oven. Energy absorbed by the susceptor material is converted into heat energy, which heats the sublimation ink, causing it to sublimate and penetrate into the receptive coating.

Claims (8)

1. A method of applying an image to an object comprising:

(a) positioning a sublimation transfer medium having a sublimation ink image on the object;

(b) positioning a microwave susceptor comprising of a sheet of dielectric material coated with a metal of thickness that absorbs microwave frequency radiation over the sublimation transfer medium;

(c) clamping the transfer medium and the microwave susceptor to the obiect with a clamp, wherein the object and the clamp are not electrically conductive; and

(d) subjecting the microwave susceptor to microwave frequency radiation.

2. A method as recited in claim 1 wherein the object includes a coating with a material receptive to sublimation ink.

3. A method as recited in claim 2 where the coating includes a polymer.

4. A method as recited in claim 3 where the coating is polyester-based.

Assignments (2)
ASSET PURCHASE AGREEMENT Recorded Jun 10, 2019
From: CAFEPRESS INC.
To: DISTRICT PHOTO, INC.
Reel/Frame 049421/0162 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 22, 2012
From: BURNETT, JOHN A.
To: CAFEPRESS INC.
Reel/Frame 027910/0688 →