Surface-treated paper for use as recording medium

摘要

A recording sheet for use on a digital press includes a paper substrate having a surface treatment including a water soluble cationic substance and a water soluble binder substance. The recording sheet preferably includes either aluminium hydroxide in the base or magnesium sulphate as the cationic substance at the substance. The cationic substance may alternatively be a polymer such as a polyquaternary amine. The binder substance may be e.g. carboxymethyl cellulose.