Title:
PAPERS FOR LIQUID ELECTROPHOTOGRAPHIC PRINTING AND METHOD FOR MAKING SAME
Document Type and Number:
WIPO Patent Application WO2004092483
Kind Code:
A3
Abstract:
The specification discloses papers suitable for liquid electrophotographic printing ("LEP") and a method for making such papers. According to the method, a papermaking furnish containing cellulosic fibers is formed into a fibrous web on a papermaking machine and at least partially dried. The web is then treated with a sizing composition comprising starch, an acrylic acid polymer, an organic material having an HLB value of from about 2 to about 14 such as a polyglycerol ester, and water. The treated web is dried and calendered to a final desired caliper. Since the sizing composition is an aqueous mixture, it may be applied to the web on-line during production of the paper on the papermaking machine, thereby avoiding the expense and inconvenience of conventional off-line methods used to make existing LEP papers. The resulting paper exhibits at least 80% and preferably above 90% toner adhesion as measured by the tape pull tests used for the assessment of papers printed by LEP.
Inventors:
HUANG YAN C (US)
SHELMIDINE DAVID B (US)
BECKER JEFFREY R (US)
MORGAN ERNIE L (US)
SHELMIDINE DAVID B (US)
BECKER JEFFREY R (US)
MORGAN ERNIE L (US)
Application Number:
PCT/US2004/011367
Publication Date:
May 06, 2005
Filing Date:
April 07, 2004
Export Citation:
Assignee:
INT PAPER CO (US)
HUANG YAN C (US)
SHELMIDINE DAVID B (US)
BECKER JEFFREY R (US)
MORGAN ERNIE L (US)
HUANG YAN C (US)
SHELMIDINE DAVID B (US)
BECKER JEFFREY R (US)
MORGAN ERNIE L (US)
International Classes:
D21H17/37; D21H21/16; G03G7/00; D21H17/28; D21H17/53; D21H23/24; D21H25/14; (IPC1-7): D21H21/16; G03G7/00
Domestic Patent References:
| WO1999032718A1 | 1999-07-01 |
Foreign References:
| US5045587A | 1991-09-03 | |||
| GB1171382A | 1969-11-19 |
Other References:
DATABASE WPI Section Ch Week 197724, Derwent World Patents Index; Class A82, AN 1977-42542Y, XP002318039
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