Consolidated Papers, Inc.

Stora Enso North America Corporation

Ralph L Lau

Wayne A Damrau

Bernard J Berger

Martin E Munce

Microgloss variations in and microgalvanizing of supercalendered webs of paper are significantly reduced without significant reduction in the super-calendered paper gloss by passing the supercalendered web through a heated soft extended nip calender.

Web calendering method and apparatus

A method and apparatus are disclosed for making a high bulk, coated paper of a unique structure with the coating forming a lower portion of the total caliper and the paper base forming a higher portion of the total caliper than conventionally made coated paper of the same weight. The process includes the step of using furnish with a high percentage of mechanical pulp, applying that furnish to papermachine wires, preferably with a gap former, coating the paper with a coating containing a plastic pigment, preferably of 4 or more parts per 100 parts of coating pigment, and calendering the coated paper at a nip loading less than conventional supercalendering nip loading. Preferably, the finished coated paper will have a 75&deg; TAPPI gloss of 40 or above. The method and apparatus can be used to make lightweight or other weights of coated paper.

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Port Edwards, WI, United States of America

Ralph L Lau