Ink-jet media having supporting intermediate coatings and microporous top coatings

This invention describes a special paper for inkjet printers designed to prevent the ink-absorbing top layer from cracking or splitting. It achieves this by using a specific three-layer structure: a base paper, an intermediate coating, and a microporous top coating. The claims detail that the intermediate coating is an aqueous polymeric material, specifically a blend of acrylic copolymers with defined glass transition temperatures, applied to a clay-coated paper substrate.

Why it matters: Filed before significant advancements in aqueous polymer chemistry. New polymer systems could now offer improved performance or cost-effectiveness for the specified intercoat, making the crack-reduction method more viable.

Status: ExpiredProtection ended and was never renewed
How hard to build: SpecializedIndustrial coating equipment, polymer formulation, process control

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