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Two environmentally friendly, water-born polyesters were used with rosin as internal sizes in the wet-end at neutral-alkaline papermaking conditions. Two different furnishes were tested. The premixing process, mixing two or more chemicals together before adding to pulp or stock, was studied. The results show that the premixing process improved the polyester sizing efficiency. The mechanism of the premixing process was also investigated. A new wet end process is described that shows improved physical properties.
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Sponsored by the Recovery Boiler Program R&D Subcommittee of the American Forest & Paper Association (AF&PA) and published by TAPPI Press.
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Available for Purchase – Conference Proceedings
TAPPI maintains a record of key conference papers, presentations, and other conference publications, available for purchase in a variety of formats.
Environmentally Friendly PET Polyester Resins Used in the Wet-end at Neutral-Alkaline, 2004 Paper Su