Title:
NONWOVENS WITH IMPROVED CONTROL OF FILAMENT DISTRIBUTION
Document Type and Number:
WIPO Patent Application WO2002052071
Kind Code:
A3
Abstract:
Described herein are improvements to processes and equipment for the manufacture of nonwoven webs useful in numerous applications including personal care, protective apparel, and industrial products. The fiber and/or filaments used to form the nonwoven fabric are deposited on a forming surface in a controlled orientation using application of an electrostatic charge to the fibers and/or filaments in combination with directing them to an electrode deflector plate while under the influence of the charge. The plate may be made up of teeth with a separation and angle orientation that are selected in accordance with the desired arrangement of the fibers and/or filaments in the nonwoven web. As a result, properties of the web such as relative strengths in the machine direction and cross-machine direction can be controlled.
Inventors:
HAYNES BRYAN DAVID
LAKE MATTHEW BOYD
RHIM HANNONG
LAKE MATTHEW BOYD
RHIM HANNONG
Application Number:
PCT/US2001/050255
Publication Date:
March 27, 2003
Filing Date:
December 20, 2001
Export Citation:
Assignee:
KIMBERLY CLARK CO (US)
International Classes:
D04H1/56; D04H1/70; D04H3/02; D04H3/16; (IPC1-7): D01D5/098; D04H1/56; D04H3/02; D04H3/16; D01D10/04
Domestic Patent References:
| WO1990014228A1 | 1990-11-29 |
Foreign References:
| US3314122A | 1967-04-18 | |||
| DE19650607A1 | 1998-06-10 | |||
| US4009508A | 1977-03-01 | |||
| US4380104A | 1983-04-19 | |||
| US3490115A | 1970-01-20 | |||
| US5225018A | 1993-07-06 |
Other References:
DATABASE WPI Section Ch Week 198449, Derwent World Patents Index; Class F04, AN 1984-303025, XP002214211
Download PDF:
Previous Patent: METHOD AND DEVICE FOR PRODUCING SUBSTANTIALLY ENDLESS FINE THREADS
Next Patent: YARN AND FABRIC HAVING IMPROVED ABRASION RESISTANCE
Next Patent: YARN AND FABRIC HAVING IMPROVED ABRASION RESISTANCE