Surgery – Means and methods for collecting body fluids or waste material – Absorbent pad for external or internal application and...
Patent
1996-07-19
1999-01-12
Polutta, Mark O.
Surgery
Means and methods for collecting body fluids or waste material
Absorbent pad for external or internal application and...
604392, 604396, 604393, 2337, A61F 1315
Patent
active
058580131
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention is directed to a disposable absorbent pant or diaper and, more particularly, to a disposable absorbent pant or diaper having a waist portion with elements for increasing the frictional resistance upon contact with the skin of the user, such that the circumferential elastic may be reduced.
BACKGROUND OF THE INVENTION
The present invention relates to a pair of absorbent pants or a pant diaper for one-time use, comprising a crotch portion, front and back portions adjacent thereto, which are joined to form a waist portion surrounding the waist of the user, said portion being circumferentially elastic, an absorbent body, which is held tightly against the body of the user by the elastic waist portion. Such an absorbent pant diaper is known by our own Swedish patent application 9200663-4, having around the waist elastically extensible elements, for example elastically extensible strings, strips, film, fibre fabric, laminates or the like, which are designed to hold the pant diaper in place on the user and prevent it from slipping down from its intended position of use. In order to prevent the elastic tension from being uncomfortable for the user, the known pant diaper is provided with a large number of elastic elements, which, by virtue of their number, on one hand exert a sufficient total tightening force around the waist of the user for the pant diaper to not slip down, and, on the other hand, each does not exert an excessive local pressure on the user. However, the use of a large number of elastic elements involves a relatively high material cost. It is therefore desirable to be able to reduce the need for elastic elements in the waist portion of the pant diaper without having to deviate from the requirement that the pant diaper should stay up comfortably on the user.
SUMMARY OF THE INVENTION
These and other problems are solved by a disposable absorbent pant diaper of the type described by way of introduction which is characterized in that at least portions of the surface of the waist portion facing the skin of the user are provided with a friction agent to form a friction increasing surface against the skin. This prevents the pant diaper from slipping down, in a very inexpensive and simple manner without having to use many elastic threads. This makes it possible to supply a very limited number of pant waist sizes while still requiring that the pant diaper should stay in place during use. The present invention can, however, also be used with advantage on a pant diaper having a large number of elastic elements in the waist portion. In this case, it is possible to reduce the tension which the elastic elements exerts on the user, since the frictional force of the friction agent compensates for the reduced friction resulting from the lowering of the elastic tension. It is of course possible to use the invention on other types of pant diapers as well, which do not use a large number of elastic elements in the waist, for the purpose of improving the friction against the body of the user, i.e. improving the stay-up capacity of the pant diaper.
U.S. Pat. No. 4,834,739 describes the use of friction coatings on a sanitary napkin to keep the napkin in place relative to the underpants and thighs of the wearer. This invention is, however, directed to an entirely different problem as is mentioned above and an entirely different field, namely a sanitary napkin which is held up by the user's underpants.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will now be described in more detail with reference to the accompanying drawings, where:
FIG. 1 shows a schematic plan view of an absorbent pant diaper according to one embodiment of the invention as seen towards the outside of the pant diaper in a state in which the front and back portions of the pant diaper have still not been joined for forming the waist opening and the leg opening, and in which the elastic elements in the pant diaper are in their stretched-out state;
FIG. 2 shows a section along the line II--II in FIG. 1;
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Molnlycke AB
Polutta Mark O.
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