Particulate addition method and apparatus

Personal care products typically are made with a top sheet material (also referred to as a cover sheet or liner), an absorbent core and a liquid impervious back sheet. Some may also have a surge layer or other specialized layers between the top sheet and absorbent core. Absorption of fluid, comfort...

Full description

Saved in:
Bibliographic Details
Main Authors Chambers, Jr., Leon Eugene, Lennon, Eric Edward, Adam, Gabriel Hamman, Schwalen, Jerome Joseph, Laslie, Christopher Andrew, Clark, H. Edmund
Format Patent
LanguageEnglish
Published 23.03.2004
Online AccessGet full text

Cover

More Information
Summary:Personal care products typically are made with a top sheet material (also referred to as a cover sheet or liner), an absorbent core and a liquid impervious back sheet. Some may also have a surge layer or other specialized layers between the top sheet and absorbent core. Absorption of fluid, comfort and avoidance of leakage are the functions desired. A nonwoven web contains an even distribution of its composite materials by the separate application of particulate material such as superabsorbent particles into a forming head outside the air stream for deposition of thermoplastic fibers in the forming head. The thermoplastic fibers are distributed by air entertainment through tubular forming screens having rotary distribution members therein. The particulate absorbents are generally placed in the forming box by distribution units which may have metering devices and outlet chutes extending into the forming head.