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Class Information
Number: 162/162
Name: Paper making and fiber liberation > Processes and products > Non-fiber additive > Coloring agent
Description: Processes and products including the addition to the fibers of (1) a dye, or (2) a pigment or chemical agent which produces a color in the product other than white.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7622022 |
Surface treatment of substrate or paper/paperboard products using optical brightening agent |
Nov. 24, 2009 |
| 7608168 |
Alkanolammonium-containing triazinyl flavonate whiteners |
Oct. 27, 2009 |
| 7591926 |
Process for production on nonuniformly intensely colored paper and paper obtainable by such process |
Sep. 22, 2009 |
| 7578903 |
Colored sanitary tissue paper and production method thereof |
Aug. 25, 2009 |
| 7455726 |
Photostabilised effect pigments |
Nov. 25, 2008 |
| 7452416 |
Cationic titanium dioxide pigments |
Nov. 18, 2008 |
| 7425234 |
Iron oxide pigments |
Sep. 16, 2008 |
| 7413631 |
Opacifying composition for paper or paperboard, processes using same and paper or paperboard produced therefrom |
Aug. 19, 2008 |
| 7387671 |
Iron oxide pigments |
Jun. 17, 2008 |
| 7384504 |
Light-stable and process-stable lignocellulosic materials and their production |
Jun. 10, 2008 |
| 7381300 |
Process for manufacturing paper and paperboard products |
Jun. 3, 2008 |
| 7331998 |
Liquid formulations of direct dyes |
Feb. 19, 2008 |
| 7318860 |
Green pigment preparations |
Jan. 15, 2008 |
| 7294191 |
Pure-coloured, readily dispersible iron oxide red pigments with high grinding stability |
Nov. 13, 2007 |
| 7270727 |
Paper sized with a sizing agent and a selected sizing promoter |
Sep. 18, 2007 |
| 7258815 |
Use of brighteners for the preparation of coating slips |
Aug. 21, 2007 |
| 7198731 |
Optical brighteners |
Apr. 3, 2007 |
| 7192471 |
Aryl-ureido benzoxazinone compounds |
Mar. 20, 2007 |
| 7175739 |
Method for incorporating feature substances into a paper web |
Feb. 13, 2007 |
| 7150839 |
Fluorescent agents |
Dec. 19, 2006 |
| 7060201 |
Optical brighteners their composition their production and their use |
Jun. 13, 2006 |
| 6991706 |
Clothlike pattern densified web |
Jan. 31, 2006 |
| 6989056 |
IR reflective pigment compositions |
Jan. 24, 2006 |
| 6969444 |
Paper coating slip containing n-vinylformamide |
Nov. 29, 2005 |
| 6936078 |
Fluorescent brightener pigment compositions |
Aug. 30, 2005 |
| 6911116 |
Cationically modified white pigments, their production and use |
Jun. 28, 2005 |
| 6890454 |
Optical brighteners compositions their production and their use |
May. 10, 2005 |
| 6872282 |
Surface finishing of paper or board |
Mar. 29, 2005 |
| 6860906 |
Process for preparing solutions of anionic organic compounds |
Mar. 1, 2005 |
| 6858255 |
Thickeners for paper dye compositions |
Feb. 22, 2005 |
| 6852198 |
Resin composition, water-resistant/moisture-proof paper, containing the same, and process for producing the same |
Feb. 8, 2005 |
| 6808559 |
Kaolin clay pigments suited to rotogravure printing applications and method for preparing the same |
Oct. 26, 2004 |
| 6792953 |
Tobacco smoke filter |
Sep. 21, 2004 |
| 6773549 |
Method for producing an enameled, optically brightened printing paper |
Aug. 10, 2004 |
| 6733627 |
Method for manufacturing paper having variable characteristics |
May. 11, 2004 |
| 6716316 |
Process for conditioning a circulating felt belt |
Apr. 6, 2004 |
| 6702922 |
Papers for use in decorative laminates and methods of making the same |
Mar. 9, 2004 |
| 6663960 |
Fluorescent particles, method for preparing the same and paper preventing forgery using the fluorescent particle |
Dec. 16, 2003 |
| 6630056 |
Color tracing paper |
Oct. 7, 2003 |
| 6620294 |
Formulations of fluorescent whitening agents |
Sep. 16, 2003 |
| 6599326 |
Inhibition of pulp and paper yellowing using hydroxylamines and other coadditives |
Jul. 29, 2003 |
| 6592716 |
Security fibers and process for the preparation thereof |
Jul. 15, 2003 |
| 6582556 |
Security paper and methods for production thereof |
Jun. 24, 2003 |
| 6527914 |
Method of enhancing brightness and brightness stability of paper made with mechanical pulp |
Mar. 4, 2003 |
| 6500303 |
Inhibition of pulp and paper yellowing using nitroxides, hydroxylamines and other coadditives |
Dec. 31, 2002 |
| 6464832 |
Method for optically brightening paper |
Oct. 15, 2002 |
| 6447644 |
Inhibition of pulp and paper yellowing using nitroxides, hydroxylamines and other coadditives |
Sep. 10, 2002 |
| 6423183 |
Paper products and a method for applying a dye to cellulosic fibers |
Jul. 23, 2002 |
| 6342305 |
Colorants and colorant modifiers |
Jan. 29, 2002 |
| 6319360 |
Production for mottled paper |
Nov. 20, 2001 |
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