Offset-printable coated white paper having a high fluorescent intensity and method for producing same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 19, 2014
Grant Date -
Feb 11, 2010
app pub date -
Jan 31, 2008
filing date -
Jan 31, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention concerns a coated white sheet having a fluorescence intensity of more than 55, measured in accordance with international standard ISO 11475: 2004, by the difference between the value for the CIE whiteness under D65 illuminant and the value for this same CIE whiteness after interposing a filter that eliminates wavelengths shorter than 420 nm, and being offset-printable with no mottling, said coated sheet comprising at least one base sheet and a printable white surface coat having a pigmented composition which comprises: —at least some white coating pigments and at least one coating binder; —at least one fluorescent whitening agent in a total quantity of 1% dry weight or more with respect to the dry weight of said pigments; —at least one support substance for said whitening agent in a total quantity of dry weight of more than 2% with respect to the dry weight of said pigments. The invention also concerns a method for producing said coated sheet by curtain coating said pigmented composition.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2008 Application Filing Year
- B41M Class
- 229 Applications Filed
- 147 Patents Issued To-Date
- 64.20 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- B41M Class
- 19.67 % this patent is cited more than
- 11 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 19, 2026 |
