D - Textiles – Paper – 04 – H
Patent
D - Textiles, Paper
04
H
19/3
D04H 1/72 (2006.01) A61F 13/15 (2006.01)
Patent
CA 1319486
APPARATUS FOR AND METHODS OF FORMING AIRLAID FIBROUS WEBS HAVING A MULTIPLICITY OF COMPONENTS ABSTRACT Apparatus for and methods of forming, from a single column of fibers, an airlaid fibrous web having a multiplicity of components. The apparatus is of the type which includes a first airlaying means such as a first laydown drum having a first foraminous forming element; a second airlaying means such as a second laydown drum having a second foraminous forming element; a splitting means for splitting a column of fibers into a multiplicty of fiber streams and for entraining each of the fiber streams in air so as to provide a multiplicity of streams of air-entrained fibers; a first deposition means for directing a first stream of air-entrained fibers from the splitting means to the first airlaying means; a second deposition means for directing a second stream of air-entrained fibers from the splitting means to the second airlaying means; a dusting layer deposition means for directing a dusting layer stream of air-entrained fibers from the splitting means to the first airlaying means and uniting means for uniting a first web component that is formed on the first airlaying means with a second web component that is formed on the second airlaying means to form an airlaid fibrous web having a multiplicity of components. The method preferably comprises the steps of: a. providing a multiplicity of streams of air-entrained fibers; b. directing a first stream of air-entrained fibers toward a first airlaying means; c. forming a first web component from the first stream of air-entrained fibers on said first airlaying means; d. directing a second stream of air-entrained fibers to a second airlaying means; e. forming a second web component from the second stream of air-entrained fibers on said second airlaying means; and f. uniting said first web component and said second web component to form an airlaid fibrous web having a multiplicity of web components.
537859
Sim & Mcburney
The Procter & Gamble Company
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