NONWOVEN FABRIC, AND PROCESS FOR PRODUCING THE SAME
First Claim
1. A nonwoven fabric characterized in that a fibrous web formed of thermoplastic fibers or containing thermoplastic fibers is partially pressed and heated to form recessed press-welded portions, the fibers in the portions other than said recessed portions being raised;
- said press-welded portions are continuous lines or uncontinuous lines which give a pattern of figures, characters or signals containing at least curved portions or square portions, or a pattern of a combination thereof; and
a plurality of press-welded dot portions are formed in the portions other than the continuous line or uncontinuous line press-welded portions such that said press-welded dot portions do not overlap with the continuous line or uncontinuous line press-welded portions.
1 Assignment
0 Petitions
Accused Products
Abstract
In a fibrous web, press-welded line portions are formed, and press-welded dot portions are formed in portions other than the press-welded line portions. The formation of the press-welded line portions makes it possible to raise the surface of the fibrous web, to increase the bulkiness of the nonwoven fabric and to make the nonwoven fabric soft. Further, figures are drawn by the press-welded line portions, whereby the nonwoven fabric comes to have an excellent appearance in comparison to a conventional nonwoven fabric.
66 Citations
12 Claims
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1. A nonwoven fabric characterized in that
a fibrous web formed of thermoplastic fibers or containing thermoplastic fibers is partially pressed and heated to form recessed press-welded portions, the fibers in the portions other than said recessed portions being raised; -
said press-welded portions are continuous lines or uncontinuous lines which give a pattern of figures, characters or signals containing at least curved portions or square portions, or a pattern of a combination thereof; and
a plurality of press-welded dot portions are formed in the portions other than the continuous line or uncontinuous line press-welded portions such that said press-welded dot portions do not overlap with the continuous line or uncontinuous line press-welded portions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A process for producing a nonwoven fabric comprising the following steps:
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a step of forming a fibrous web with thermoplastic fibers or fibers containing thermoplastic fibers, a step of feeding said fibrous web between a hot roller provided on the surface with projected portions containing continuous lines or uncontinuous lines by which to form figures, characters or symbols having at least curved portions or square portions, or a combination thereof, and a hot roller having a smooth surface, and a step of holding the fibrous web between the hot roller provided on the surface with the projected portions and the hot roller having the smooth surface, and press-welding the fibers of the fibrous web with the projected portions to partially recess the fibrous web and form press-welded portions. - View Dependent Claims (10, 11, 12)
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Specification