PAPER COATING OR BINDING FORMULATIONS AND METHODS OF MAKING AND USING SAME

摘要

A paper coating or binding formulation comprises an aqueous polymer dispersion comprising a copolymer obtained by polymerization of an unsaturated monomer and a carbohydrate derived compound and a tetrasulfonate-based fluorescent whitening agent. The carbohydrate derived compound can be selected from the group consisting of dextrins, maltodextrins, and mixtures thereof. Methods of preparing a paper coating or binding formulation and improving the whitening properties of paper are also provided. Furthermore, paper including a copolymer obtained by polymerization of an unsaturated monomer and a carbohydrate derived compound and a tetrasulfonate-based fluorescent whitening agent is also disclosed.

主权项

1. A paper coating or binding formulation, comprising:
an aqueous polymer dispersion comprising a copolymer derived from 40% to 75% by weight of styrene, 25% to 60% by weight of butadiene, 1% to 10% by weight of itaconic and/or (meth)acrylic acid, 0% to 3% by weight of (meth)acrylamide, 0% to 20% by weight of (meth)acrylonitrile, and greater than 0% to less than 50% by weight of a carbohydrate-derived compound having a dextrose equivalent (DE) of about 10 to about 35, based on the total monomer weight; and a tetrasulfonate-based fluorescent whitening agent.