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US 6,187,139 B1Granted
Wet creping process
AssigneeFort James Corporation
InventorsSteven L. Edwards, Robert J. Marinack
Life of this patent
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Abstract
The present invention is a method for making a high quality paper product at improved process efficiency through the use of high steam levels in the Yankee dryer. The product according to the present invention is creped from the Yankee dryer while it is still wet and is then drying is completed using conventional methods. Products made according to the present invention exhibit improved absorbency, softness and bulk.
Claims20
A method for causing delamination of the fibers within a fibrous web comprising
- forming a nascent web from a fibrous slurry;
- adhering said web to a dryer from which said web may be creped;
- creping said web from the dryer at a solids content below about 90% and when the web has a moisture profile that causes the fibers to shear, thereby resulting in delamination.
A method of forming a paper web comprising:
- forming a nascent web from a fibrous slurry, adhering said nascent web to a dryer, said dryer being at a pressure
- between about 50 and about 150 psi;
- creping said web from said dryer at a solids content between about 30% and 90% and when the web has a moisture profile that causes the fibers to shear, thereby resulting in delamination;
- contacting said web with a second dryer to cause drying of said web to a solids content greater than 95%.
1 more element
Dependencies are inferred from the claim text.