A method for making an insulating paperboard

Details A method for making an insulating paperboard A method for making an insulating paperboard

D - Textiles, Paper

21

H

D21H 11/16 (2006.01) B31D 3/00 (2006.01) B31F 1/07 (2006.01) B32B 29/02 (2006.01) D21H 27/00 (2006.01)

Patent

CA 2475751

An insulating paperboard contains at least one layer of cellulose fibers. The one layer is at least partially composed of bulky fibers. The paperboard is sufficiently insulated to provide a hot water .DELTA.T across the paperboard of at least 0.7°C ~ 2.3°C per 0.1 mm of caliper. The paperboard may be embossed to decrease surface transmission of heat. A hot cup may be produced from the insulating paperboard.

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