Multi-layer absorbent pad for disposable absorbent articles and

Details Multi-layer absorbent pad for disposable absorbent articles and Multi-layer absorbent pad for disposable absorbent articles and

1979-06-06

1981-04-07

Michell, Robert W.

Surgery

Respiratory method or device

Ozone or ion generation

428289, 428301, A41B 1302

Patent

active

042599580

ABSTRACT:
Process of forming and resultant multi-layer absorbent pad for use in disposable absorbent articles, such as diapers and the like, to absorb body fluids and being characterized by providing superior fluid transfer from a top uncompressed receiving layer to a bottom compressed layer and wicking and spreading action of the body fluids within the bottom layer to provide a drier top surface to the absorbent pad. The top layer is formed of fiberized cellulosic fibers including a cationic debonding agent provided therein prior to fiberization for obtaining more complete fiberization of the fibers and greater height and loft to the layer while producing resistance to normally-occurring hydrogen bonds between the fibers in the layer to resist compression of the layer and maintain the height and loft of the absorbent pad. The bottom layer is formed of fiberized cellulosic fibers without a cationic debonding agent therein for allowing compression of the layer by effecting the normally-occurring hydrogen bonds between the fibers in the compressed layer to provide a more densified layer for improved fluid wicking and spreading action.

REFERENCES:
patent: Re26939 (1970-08-01), Hervey et al.
patent: Re28139 (1974-08-01), Gore
patent: 3017304 (1962-01-01), Burgeni
patent: 3211147 (1965-10-01), Pherson et al.
patent: 3554862 (1971-01-01), Hervey et al.
patent: 3554863 (1971-01-01), Hervey et al.
patent: 3612055 (1971-10-01), Mesek et al.
patent: 3768480 (1973-10-01), Mesek et al.
patent: 3837343 (1974-09-01), Mesek
patent: 3984272 (1976-10-01), Teed
patent: 4050462 (1977-09-01), Woon et al.

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