IP Library Granted Patent US 6,913,875
Granted Patent B2
US 6,913,875 · App. 10/853,184 · Granted Jul 5, 2005

Curl resistant print media

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Quick Facts
Patent No.
US 6,913,875
App. No.
10/853,184
Granted
Jul 5, 2005
Kind
B2
Abstract

Print media, when rolled tightly often produces a high degree of curl when removed from a roll form. The stiffer the media, the more likely the tenancy to curl. On the other hand, media that is too thin will be too floppy for conventional handling. Incorporating some stiffening strands running along the axis of a roll of paper substrate allow the media to be roll relatively tightly but give the media a tendency to readily de-curl once it is unrolled. These strands ideally have a pitch of approximately 200 microns. The ribs result in material of greater stiffness across the width of the media than along the length and maintain adequate stiffness for handling and viewing of the printed media.

Claims (7)

1. A print roll for a digital camera with inbuilt printhead, the print roll comprising:

a roll of print media having a surface on which the printhead can print an image captured by the digital camera; wherein,

the print media incorporates fibers configured such that the media has a stiffness in a first direction that exceeds the stiffness in a second direction that is perpendicular to the first direction.

2. A print roll according to claim 1 wherein the fibers are extruded polymer strands.

3. A print roll according to claim 2 wherein the print media is formed by adhering the strands to one side of a paper substrate.

4. A print roll according to claim 2 wherein the print media is formed by sandwiching the strands between two paper substrates.

5. A print roll according to claim 2 wherein the strands are configured substantially parallel to the longitudinal axis of the roll.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 18, 2013
From: SILVERBROOK RESEARCH PTY LTD
To: GOOGLE INC.
Reel/Frame 029822/0111 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 26, 2004
From: SILVERBROOK, KIA
To: SILVERBROOK RESEARCH PTY. LTD.
Reel/Frame 015380/0791 →