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US 7,001,562 B2Granted
Method for treating fibrous web materials
AssigneeKimberly-Clark Worldwide, Inc.
InventorsDaniel Kenneth Schiffer, Clayton James Logan, Michael David Powers, Hue Scott Snowden
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Abstract
The present invention provides an efficient method for topically treating and drying fibrous web materials such as nonwoven web materials and nonwoven laminate materials without unduly damaging the materials due to excessive heating during drying.
Claims18
A method for treating a fibrous web material comprising the steps of:
- a) providing a fibrous web material;
- b) treating the fibrous web material with a topical treatment, the topical treatment comprising a treatment chemical and a liquid carrier medium;
- c) partially drying the fibrous web material, wherein after partial drying the fibrous web material comprises about 40 percent to about 10 percent by weight residual moisture;
- and thereafter
- d) passing the fibrous web material through a radio frequency energy field, wherein after passing through the radio frequency energy field the fibrous web material comprises less than about 5 percent by weight residual moisture.
2 more elements
Dependencies are inferred from the claim text.