D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
92/2, 92/65, 92/
D21F 11/14 (2006.01) D21F 2/00 (2006.01) D21F 11/00 (2006.01)
Patent
CA 1222406
- 42 - WET-MICROCONTRACTED PAPER AND CONCOMITANT PROCESS Edward R. Wells and Thomas A. Hensler ABSTRACT High bulk, absorbent piper having a relatively high MD elongation at rupture, and a substantially greater stress/strain modulus in the lowest one-third of its range of MD extensibility -- preferably when wet -- than equally machine-direction-stretchable, purely dry-foreshortened (e.g., dry-creped) paper having substantially identical MD elongation at rup- ture. The process includes a differential velocity transfer of a wet-laid embryonic web having relatively low fiber consistency from a carrier to a substantially slower moving, open-mesh transfer fabric having a substantial void volume; and thereafter drying the web while precluding substantial macroscopic rearrangement of the fibers in the plane of the web. The differ- ential velocity transfer is effected without sub- stantial compaction of the web by avoiding substantial mechanical pressing, centrifugal slinging, air blast- ing, and the like. The MD stress-strain property of the paper when wet is directly related to the magnitude of the differential velocity at transfer; to the magnitude of the wet-strength property of the paper; and to the topography of the transfer fabric.
423570
Hensler Thomas A.
Wells Edward R.
Kirby Eades Gale Baker
The Procter & Gamble Company
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