High water absorbent double-recreped fibrous webs
AssigneeKimberly-Clark Tissue Company
InventorsRalph L. Anderson, Kenneth C. Larson
Life of this patent
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Abstract
The improved creped non-laminar singular web structure comprising long fibers and short fibers demonstrated by high TWA and Z peeling. Creping causes a certain portion of long synthetic fibers and short fibers to substantially be oriented in a predetermined vertical or Z direction across the thickness of the web structure. In particular, when a stratified preparation containing wet stiff CTMP fibers is used, the vertically oriented CTMP fibers increase the total water absorption (TWA) of the web structure without collapsing. The high TWA print/double-creped paper products manufactured from the above web structure are suitable for heavy wipe and dry uses.
Claims20
A web structure comprising:
- first fibers oriented substantially in the Z direction across a thickness of the web structure, said first fibers having a weight ranging from approximately 5% to approximately 30% of the total web structure;
- and
- second fibers being shorter than said first fibers and having a weight ranging from approximately 70% to approximately 95% of the total weight of the web structure, some of said second fibers being in contact with said first fibers and caused to be oriented substantially in the Z direction by said first fibers.
Dependencies are inferred from the claim text.