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Two-sided nonwoven fabrics having a three-dimensional image
   
Document Number
US Patent 7047606
Issued Date
May 23, 2006
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Inventors
Rivera; Miguel (Mooresville, NC)
Putnam; Michael J. (Fuquay-Varina, NC)
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Abstract
The present invention is directed to a method of forming a two-sided nonwoven fabric, which exhibits a pronounced three-dimensional image that is durable to both converting and end-use application. In particular, the present invention contemplates that a fabric is formed from a first precursor web comprising a first fibrous matrix and a second precursor web comprising a second fibrous matrix. Between the first and second precursor web, a fluid-pervious support layer or scrim, is interposed and subjected to hydroentanglement on a moveable imaging surface having a three-dimensional image transfer device. By formation of a nonwoven fabric in this fashion, a three-dimensional image that is durable to abrasion and distortion due to elongation is imparted and a product formed which exhibits on its opposite surfaces the unique properties of the respective fibrous matrix used.
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Number of Claims:
8
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Owner
Polymer Group, Inc. (North Charleston, SC)
Published
May 23, 2006
Application Number
10/400,242
Filed
March 27, 2003
US Classification
28/104  
Int'l Classification
D04H   1/46   (20060101)  
Examiner
USPTO Field of Search
28/104   28/105   28/106   28/103   28/163   28/167   442/408   442/381   442/382   442/384   442/385   442/387   442/389   442/390  
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7426776 - Nonwoven towel with microsponges - Owned by Milliken & Company (Spartanburg, SC)

The invention relates to a process of forming a nonwoven fabric with microsponges comprising obtaining a nonwoven base comprising fibers having a first side and a second side and having a weight of greater than about 2 oz/yd.sup.2, stitching the nonwoven base with a stitching yarn in elongated spaced apart rows of stitches, the rows of stitching having a stitch shape factor greater than 0.54 wherein the stitching yarn has a tenacity greater than 1 gf/denier. Next, a plurality of microsponges is formed by impinging the first side of the stitched nonwoven fabric with a collimated fluid stream with from about 100 to 200 joules per gram while supporting the stitched nonwoven fabric on a supporting member having areas impervious to the collimated fluid and pores in the supporting member which are pervious to the collimated fluid. The pores of the supporting member have a pore shape factor value of at least the stitch shape factor value of the rows of stitches and the ratio of the distance between the rows of stitches to the average width of the pores is from about 3:2 to 5:2. Also disclosed are the product made by the process and the article.

Claims
Description
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