New Amphoteric Starch Technology for Improved Paper Quality and Optimal Wet-End Performance, 2001 Papermakers Conference Proceedings
Lee Nester, Walter Maliczyszyn--The next generation in amphoteric wet-end starch technology has been introduced. These starches contain positively and negatively charged substituent groups, innovatively configured in the manufacturing process, to achieve a desired charge balance. This new manufacturing process insures an effective charge distribution on the starch molecule, allowing for a more controlled/stabilized wet-end chemistry in machine systems employing this technology. With this enhanced charge distribution, improved performance in dry strength development, drainage and fines/filler retention have been achieved in a wide range of furnishes. As dry strength additives, these starches continue to provide incremental strength improvement at addition rates where current cationic or amphoteric starches show diminishing or negative effects.
New Amphoteric Starch Technology for Improved Paper Quality and Optimal Wet-End Performance, 2001 Pa