High bulk paper

Details High bulk paper High bulk paper

D - Textiles, Paper

21

H

D21H 23/24 (2006.01) D21F 3/02 (2006.01) D21F 5/04 (2006.01) D21F 9/00 (2006.01) D21F 11/00 (2006.01) D21G 1/00 (2006.01) D21H 11/10 (2006.01) D21H 23/34 (2006.01) D21H 25/14 (2006.01) D21H 19/42 (2006.01) D21H 19/84 (2006.01)

Patent

CA 2238466

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° 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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