Method and apparatus for manufacturing non-woven fabric

Patent 6673204 Issued on January 6, 2004. Estimated Expiration Date:

November 16, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Method for producing patterned non-woven fabric
Patent #: 4718152
Issued on: 01/12/1988
Inventor: Suzuki , et al.

Process and apparatus for producing nonwoven fabric
Patent #: 5301401
Issued on: 04/12/1994
Inventor: Suzuki, et al.

Method for hydropatterning napped fabric
Patent #: 5632072
Issued on: 05/27/1997
Inventor: Simon, et al.

Method and device for hydrodynamic entanglement of the fibers of a fiber web
Patent #: 5761778
Issued on: 06/09/1998
Inventor: Fleissner

Device for hydrodynamic entanglement of the fibers of a fiber web Patent #: 5960525
Issued on: 10/05/1999
Inventor: Fleissner

Inventors

Assignee

Uni-Charm Corporation

Application

No. 10/001886 filed on 11/16/2001

US Classes:

162/115, By fluid pressure162/109, Non-uniform, irregular or configured web or sheet28/104, By fluid jet needling or perforating28/105, Through backing and support members28/116Compressive manipulation

Examiners

Primary: Griffin, Steven P.
Assistant: Halpern, Mark

Attorney, Agent or Firm

Darby & Darby

International Classes

D04H 1/46 (20060101)
D21F 11/00 (20060101)
D21F 9/00 (20060101)

Foreign Application Priority Data

2000-11-27 JP

Abstract

Disclosed are a method and an apparatus for manufacturing a non-woven fabric, in which a predetermined pattern of a forming body is transferred to a non-woven fabric immediately after or simultaneously with its formation by urging the non-woven fabric onto the forming body with water jets.