Browse Prior Art Database

SPACER PARTICLES FOR PHOTO ELECTROPHORETIC IMAGING

IP.com Disclosure Number: IPCOM000024074D
Original Publication Date: 1979-Aug-31
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 156K

Publishing Venue

Xerox Disclosure Journal

Abstract

For the purpose of eliminating dark spots which appear on images produced on dielectric webs by means of the photoelectrophoretic imaging method, inert, small spacer particles are included in the imaging suspension. The dark spots in the images have been determined to be caused by field variations due to a sag in the conductive web. The sag is prevented by incorporating particles having a diameter in the range of from about 5 to about 10 microns in the imaging suspension. Typical inert particles are calcium carbonate, magnesium oxide, zinc oxide and polystyrene spheres. These spacer particles prevent the sag in the webs when added to the imaging suspension in amounts of from about 2 to 3 percent by weight.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

XEROX DISCLOSURE JOURNAL

SPACER PARTICLES FOR PHOTO~ Proposed Classification

ELECTROPHORETIC IMAGING U~S.Cl. 355/3 P
S. S. Hwang Int. Cl. G03g 15/00

3, M. Schneider

W. M. Schwarz

For the purpose of eliminating dark spots which appear on images produced on dielectric webs by means of the photoelectrophoretic imaging method, inert, small spacer particles are included in the imaging suspension. The dark spots in the images have been determined to be caused by field variations due to a sag in the conductive web. The sag is prevented by incorporating particles having a diameter in the range of from about 5 to about 10 microns in the imaging suspension. Typical inert particles are calcium carbonate, magnesium oxide, zinc oxide and polystyrene spheres. These spacer particles prevent the sag in the webs when added to the imaging suspension in amounts of from about 2 to 3 percent by weight.

Volume 4 Number 4 3uly/August 1979

[This page contains 1 picture or other non-text object]

Page 2 of 2

><~

LUE

0-a

r~

0~

rm-~

0<

z&,

>

0

[This page contains 1 picture or other non-text object]