Patent ID: 8080130
Filing Date: 2011-12-20
Classification: D21H,Y10T

Abstract:
1. A method of forming a multi-ply cellulosic web comprising: a) supplying to a headbox an aqueous stream comprising: b) with the weight ratio of short fiber to long fiber being at least 0.25 to 1.0 with the short fiber component having a Canadian Standard freeness of at least 500 ml and the long fiber component having a Canadian Standard freeness of at least 600 ml; c) forming the web on a first moving foraminous fabric; d) non-compactively dewatering the web deposited on the first moving foraminous fabric to form a nascent web having a consistency in the range from about 10% to about 35%; e) transferring the nascent web from the first moving foraminous fabric to a second moving foraminous fabric where the first moving foraminous fabric travels at a speed higher than the second moving foraminous fabric so that the fabric crepe level of the nascent web after transfer is at least about 15%; f) drying the nascent web on the second moving foraminous fabric to at most 95% solids; g) transferring the web to a cylinder dryer to further dry the web to at most 98.5% solids; h) creping the web from the cylinder dryer; i) transferring the nascent web from the cylinder dryer to a reel where the cylinder dryer is operating at a speed such that the reel crepe is at most 3%; j) converting the nascent web to form a two-ply product having basis weight of at least 32 lb/rm and caliper of at least 220 mils/8 sheets.