Title:
【発明の名称】湿式堆積法による吸収構造の改善された方法
Document Type and Number:
Japanese Patent JP2002509993
Kind Code:
A
Abstract:
A process to form a nonwoven, wet-laid, superabsorbent, polymer particle-impregnated fibrous structure on a commercial scale wet-forming machine having a head box, a forming section and a drying section, including adding SAP to water under and within 5 seconds of the SAP water contact, providing agitation of at least 4000 Reynolds units thereby dispersing ungelled SAP particles throughout the fiber furnish, delivering the furnish to a moving foraminous support, forming a wet laid web containing wetted SAP particles, draining of water from the moving wet web, and conveying the web to the dryer section, wherein the maximum elapsed time from the point where SAP is mixed with water to the time the web passes into the dryer section is less than 45 seconds.
Inventors:
Guy Thomas Woodrum
Application Number:
JP2000540867A
Publication Date:
April 02, 2002
Filing Date:
March 26, 1999
Export Citation:
Assignee:
BASF Corporation
International Classes:
D21F11/00; D21H17/33; D21H21/22; D21H23/14; D21H13/06; D21H13/24; D21H15/10; (IPC1-7): D21F11/00; D21H17/33; D21H21/22
Attorney, Agent or Firm:
Toshio Yano (3 outside)