Patent ID: 7479195
Filing Date: 2009-01-20
Classification: B29C,B29K,B29L,B32B,B44C,D04H,Y10T

Abstract:
1. A method of providing a multi-colored, multi-layered non-woven article comprising the steps of: (a) providing a first non-woven fibrous web having a first color, (b) providing a second non-woven fibrous web having a second color, (c) attaching said first web to said second web in layered disposition, to form a non-woven composite, wherein said first web forms a first layer and said second web forms a second layer that at least partially underlies said first layer, (d) providing at least one ultrasonic horn comprising a predetermined pattern of one or more projections having a flat end, (e) pressing said horn into said composite first layer and vibrating said projections at a frequency to cause said fibers of said first web to melt or become molten, wherein said first layer molten fibers are dispersed into said second layer and forming openings in said first layer thereby exposing said color of said second layer, wherein said first color and said second color are not the same.