Multi-functional paper for enhanced printing performance
AssigneeDegussa AG
InventorLeo M. Nelli
Life of this patent
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Abstract
Coated substrates include a substrate coated with a coating composition comprising a metal oxide, a binder and optionally a mordant and a crosslinker for the binder. The substrate may be paper, such as commodity paper, and the metal oxide may be a fumed metal oxide or a colloidal metal oxide. The coating may be non-glossy and may be applied at a low coat weight. Methods for making coated substrates are also disclosed. The coating may be applied to the substrate during manufacture of the substrate, for example the coating may be applied to paper using a size-press machine during its manufacture.
Claims32
A coated substrate comprising a substrate coated with a coating at a coat weight of less than about 0.8 g coating/m2 substrate, the coating comprising a metal oxide.
A coated substrate comprising a substrate coated with a coating comprising a metal oxide, the coated substrate having a specular gloss of less than about 15% at 60°.
A method of making a coated paper comprising:
- (a) using a size press to apply a coating comprising a metal oxide to a paper at a coat weight of less than about 5 g coating/m2 paper;
- and
- (b) producing a coated paper having a specular gloss of less than about 15% at 60°.
Dependencies are inferred from the claim text.