Patent ID: 7704439
Filing Date: 2010-04-27
Classification: A61F

Abstract:
1. An method of forming an air-laid fibrous article comprising the steps of: a. providing a stream of loose air-entrained fibers; b. providing a core pocket assembly comprising a central foraminous forming surface and an edge foraminous forming surface; c. applying a first pressure to said central foraminous forming surface while; applying a second pressure to said edge foraminous forming surface, wherein said second pressure applied to said edge foraminous forming surface differs from said first pressure applied to said central foraminous forming surface; d. depositing a portion of said stream of loose air-entrained fibers on said central foraminous forming surface; e. depositing a portion of said stream of loose air-entrained fibers on said edge foraminous forming surface; f. providing a stream of recycled loose air-entrained fibers; g. applying a third pressure to said central foraminous forming surface, wherein said third pressure differs from said second pressure; h. depositing a portion of said stream of recycled loose air-entrained fibers on said central foraminous forming surface; i. depositing a portion of said stream of recycled loose air-entrained fibers on said edge foraminous forming surface; j. applying a fourth pressure to said central foraminous forming surface; k. applying a fifth pressure to said edge foraminous forming surface; and l. scarfing said air-laid fibrous article to remove excess fibers.