US 2003/0116259 A1 · Method for creping nonwoven webs

Method for creping nonwoven webs

OwnerJohn Joseph Sayovitz, Gregory Todd Sudduth +8inventors

InventorsJohn Joseph Sayovitz, Gregory Todd Sudduth, Charles Edward Edmundson, Howard Martin Welch, Stephen Michael Campbell, Wendy Marie Takken, James Randall Morgan, Cherie Hartman Everhart, Jason Douglas Hadley, Susan Elaine Shawver

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Abstract

The present invention provides a method for creping a nonwoven web using a hot melt adhesive as the creping adhesive. As a second aspect of the present invention, an internal adhesive is added to the polymers used to produce the nonwoven web during the nonwoven web forming process and this internal adhesive adheres the nonwoven web to the creping roll. Using the processes of the present invention, more energy efficient methods are provided for creping nonwoven webs. The creped nonwoven webs of the present invention are useful in a wide variety of application including as wipes, liners, transfer or surge layers, outercovers, other fluid handling materials and looped attachment materials for hook and loop fasteners.

Claims25

Dependent claims

A method for producing a creped nonwoven web containing thermoplastic fibers, said method comprising

a) providing a nonwoven fibrous web having a first side and a second side, wherein the nonwoven fibrous web comprises thermoplastic fibers;
b) adhering the first side of the nonwoven fibrous web to a first roll by contacting the nonwoven fibrous web with the first roll using a hot melt adhesive to adhere the nonwoven fibrous web to the first roll;
and
c) removing nonwoven fibrous web adhered to the first roll by creping the nonwoven fibrous web from first roll with a creping blade to produce a creped nonwoven web.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

10/026,178Filed 20 Dec 2001

Published

26 Jun 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

D04H 1/70
Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres: characterised by the method of forming fleeces or…
D21H 25/005
After-treatment of paper not provided for in groups D21H17/00 - D21H23/00: mechanical treatment
D21H 13/14
From macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds: polyalkenes, e.g. polystyrene polyethylene
D21H 21/146
Characterised by function or properties in or on the paper: crêping adhesives