Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PROCESS AND APPARATUS FOR FORMING A STABILIZED ABSORBENT WEB
Document Type and Number:
WIPO Patent Application WO2002012606
Kind Code:
A3
Abstract:
An apparatus and process for forming an absorbent web (26) includes an airlaying of a first fibrous stratum (28) which has a first quantity of absorbent fibers; an airlaying of a second fibrous stratum (34) which has a second quantity of absorbent fibers; and an airlaying of a third, intermediate fibrous stratum (40) which has a third quantity of absorbent fibers. The intermediate fibrous stratum has a location that is interposed between the first fibrous stratum and the second fibrous stratum. A liquid, wet-strength agent is distributed onto the fibers of the intermediate fibrous stratum (40) during the airlaying of the intermediate fibrous stratum to thereby render the intermediate fibrous stratum substantially non-dispersible. The process and apparatus are configured to operatively form or join the intermediate fibrous stratum (40) with at least the first fibrous stratum (28), and in desired aspects, the invention can integrally form or join the intermediate fibrous stratum (40) with both of the first and second fibrous strata (28) and (34), respectively. In a particular aspect, the invention can configure the first and second fibrous strata (28) and (34) to be substantially dispersible in an aqueous liquid, and in a further aspect, the composite strata of the web (26) can be operatively compressed prior to a curing of the wet-strength agent.

Inventors:
WISNESKI ANTHONY JOHN
LI YONG
KALMON MICHAEL FRANKLIN
Application Number:
PCT/US2001/024389
Publication Date:
May 16, 2002
Filing Date:
August 02, 2001
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
KIMBERLY CLARK CO (US)
International Classes:
D04H13/00; (IPC1-7): D04H1/72; D04H1/64; B27N3/14
Domestic Patent References:
WO1992007985A11992-05-14
WO1998020821A11998-05-22
Foreign References:
GB1356100A1974-06-12
US5972265A1999-10-26
US5445777A1995-08-29
US5429788A1995-07-04
US3082138A1963-03-19
GB2015604A1979-09-12
US3453355A1969-07-01
GB1251753A1971-10-27
US4927582A1990-05-22
US4495119A1985-01-22
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: MULTI-CHAMBER PROCESS AND APPARATUS FOR FORMING A STABILIZED ABSORBENT WEB

Next Patent: THERMAL CONTROL NONWOVEN MATERIAL