Surgery – Means and methods for collecting body fluids or waste material – Absorbent pad for external or internal application and...
Patent
1997-06-30
2000-09-26
Polutta, Mark O.
Surgery
Means and methods for collecting body fluids or waste material
Absorbent pad for external or internal application and...
60438519, 604378, A61F 1315, A61F 1320
Patent
active
061236926
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to an absorbent article, such as a diaper, pants-type diaper, an incontinence guard or like article which includes a liquid-permeable top sheet, a liquid-impermeable bottom sheet and an absorbent body disposed therebetween, wherein the top sheet includes a transverse barrier which divides the article into a front and a rear part and which is intended to prevent faeces discharged to the rear part of the article moving to the front part thereof.
BACKGROUND OF THE INVENTION
It is known to provide the top sheets of diapers with transverse barriers for the purpose of preventing faeces from spreading to the front part of the diaper. EP-A-0,355,740 teaches such transverse barriers, which are created either by fastening strings of plastic foam to the top sheet or by creating transverse folds or pleats with the aid of elastic devices which extend in the longitudinal direction of the diaper in the crotch region thereof and therewith gather the top sheet together in this region. WO 94/14395 also teaches a corresponding type of transverse barrier in the outer sheet material.
The transverse barriers are intended to prevent faeces discharged to the rear part of the diaper spreading forwards in the diaper and dirtying the wearer's skin and genitals. The barriers also prevent urine and faeces mixing together on the diaper surface, since it is a known fact that the skin is much more sensitive to a mixture of urine and faeces than to each of the two components per se. Faeces contain certain enzymes which are believed to constitute an important factor in irritation of the skin. Urine is also liable to produce ammonia in the presence of faeces, therewith increasing the Ph, which in turn increases the enzymatic activity of said enzymes.
However, such transverse barriers are unable to prevent urine from spreading to the rear parts of the diaper via the underlying absorbent body and there being mixed with faeces, resulting in the aforesaid degradation products which are liable to cause skin irritation problems.
THE OBJECT OF THE INVENTION AND ITS MOST SIGNIFICANT CHARACTERISTIC
FEATURES
The object of the present invention is to provide an absorbent article, such as a diaper or an incontinence guard, with which urine and faeces are kept separate most effectively both on the top sheet and in the underlying absorbent body. This object has been achieved by providing in the absorbent body at a position essentially opposite the top sheet barrier a liquid barrier which prevents transportation of liquid in the absorbent body from the front part of the article to its rear part, either completely or partially and at least in those upper parts of the absorbent body that lie proximal to the wearer.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be described in more detail with reference to exemplifying embodiments thereof and also with reference to the accompanying drawings.
FIG. 1 is a view of a diaper from above, as seen from the side that lies proximal to the wearer.
FIG. 2 is a corresponding view from above of another embodiment of a diaper.
FIG. 3 is a schematic longitudinal section view of the diaper shown in FIG. 2.
FIGS. 4 and 5 are respective schematic longitudinal section views of an absorbent body according to two embodiments.
DESCRIPTION OF EMBODIMENTS
The diaper illustrated in FIG. 1 indicates a liquid-permeable casing sheet 1, made for instance from nonwoven or perforated plastic film, a liquid-impermeable casing sheet 2, made for instance from plastic film or hydrophobic nonwoven fabric, and an absorbent body 3 which is enclosed between the two casing sheets 1 and 2.
The diaper is intended to be worn around the lower part of the wearer's trunk as a pair of absorbent pants. The diaper has a rear part 4 which, in use, lies rearwardly of the wearer, a front part which, in use, extends forwardly of the wearer, and a narrower crotch part 6 which is located between the rear part 4 and the front part 5 and which is intended to be placed in the wearer's crotch betwe
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Guidotti Ted
Gustafsson Anders
Widlund Urban
Polutta Mark O.
SCA Hygiene Products AB
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