DE1202933B - Absorbent pad, especially sanitary pad - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. α .:

Number:
File number:
Registration date:
Display day:

A61f

German class: 3Od-14

K44097IXd / 30d
June 27, 1961
October 14, 1965

The invention relates to an absorbent pad, in particular a sanitary pad.

Although the absorption capacity of the well-known sanitary napkins is pretty good, to keep enough liquid to be able to absorb, it happens that liquid seeps through to the outside, whereby then ugly stains appear in the clothes of the wearer of the sanitary napkin.

The object of the invention is to largely decolorize the liquid in the bandage. Furthermore, a good distribution of the liquid in the absorbent part should also be achieved. so that the discoloration takes place in a wide area of the absorbent part and this also is used for fluid absorption.

It is known to add an agent for excreting proteins to the absorbent part of a napkin. The ammonium compounds used for this purpose should serve to create an unpleasant smell remove. For this purpose, relatively small amounts of the excreted protein are sufficient Means for a sanitary bandage, namely about 1.5 to 30 milligrams of an ammonium compound.

In contrast, the object to be achieved by the invention is achieved in that the amount by weight of the protein-excreting agent is at least is equal to the dry weight of the fibers of the absorbent member. For a common type of sanitary napkin, the absorbent sheet contains 0.2 g in weight, 0.2 to 1.0 g of the protein will be excreted Medium used for impregnating a layer.

Preferably, between the usual absorbent layers of the bandage there is one which is secreted with the protein Means provided intermediate layer arranged, which at the same time causes a damming of the liquid when the fluid has penetrated to this intermediate layer and hemoglobin is released and other proteins takes place.

In this way there is the great advantage that the entire intermediate layer is used to excrete the proteins is used and the usual absorbent layers are better utilized.

If, despite this, some liquid still passes through the whole bandage, at most stains can occur arise in clothing that are barely visible. This fact gives the wearer a sanitary Create a reassuring sense of security.

Of course, only those protein excreting agents that are non-toxic and that are used Do not irritate the skin, on the other hand, the proteins should be excreted as quickly and effectively as possible walk. The following were found to be suitable means:

Absorbent bandages, especially sanitary ones
Bandage

Applicant:

Kimberly-Clark Corporation,

Neenah, Wis. (V. St. A.)

Representative:

Dipl.-Ing. W. Meissner and Dipl.-Ing. H. Tischer, Patent Attorneys, Munich 2, Tal 71

Named as inventor:

George B. Olson, Niles, Mich. (V. St. A.)

Claimed priority:

V. St. v. America June 30, 1960 (39 935) - -

Ferrous ammonium sulfate, ferrous sulfate, aluminum zinc sulfate, aluminum potassium sulfate, Aluminiumnatriuma ₅ sulfate, Aluminiurnammoniumsulfat, aluminum sulfate, ammonium sulfate, aluminum acetate, zinc acetate, zinc carbonate and Zinkammomiumsulfat. Certain phosphates can also be used.

In the drawing showing the exemplary embodiments

F i g. 1 is a diagrammatic representation of a sanitary napkin that is partially open;

F i g. 2 is a cross-section along the line 2-2 of FIG

F i g. 3 shows a cross section through another embodiment of a sanitary napkin.

According to FIG. 1 and 2, the absorbent part 4 consists of outer layers 6, 6 of cell wadding and inner layers 8.8 of slightly matted wood fiber mass. Strength, composition and arrangement these absorbent layers can be changed at will, if necessary one or the other position is omitted. An intermediate layer 7 made of fiber material is arranged between the layers 8, 8, which contains a protein excreting agent. The absorbent part is usually of one enclosed liquid-permeable sheath 9, which protrudes in the longitudinal direction over the part 4 to the Allow attachment of the bandage when worn.

In the embodiment according to FIG. 3 are two impregnated intermediate layers 7 inside the absorbent Part 4 arranged.

509 717/19

The sanitary napkin is worn with the overlap of the envelope 9 facing away from the body of the wearer Side lies. If the bandage is accidentally put on the other way round, the effect of the intermediate layer remains unchangeably preserved.

The monthly flow quickly passes through the sheath 9 and is first turned into the one facing the body Layers 6 and 8 absorbed. Stronger influx penetrates partially through these layers 6, 8 up to Liner 7, where a rapid chemical reaction between the proteinaceous substances in the Liquid and the protein excreting agent takes place in the intermediate layer. Hemoglobin and other proteins are immediately precipitated and form a layer of gelatinous granular particles. When this layer forms on or near the surface of the intermediate layers 7, the pass-through of liquid is reduced by the liner, and this jam results in sideways wandering of the liquid through the adjacent absorbent ao layer 8. This on the one hand becomes the absorbent Part 4 of the bandage better utilized, while on the other hand another area of the intermediate layer 7 for Excretion of the protein in the liquid is used. as

The liquid entering the intermediate layer 7 is largely due to the excretion of the hemoglobin discolored. If some of the liquid still reaches the other side of the bandage, e.g. in the case of strong Bleeding, the almost colorless, watery liquid only stains the clothing, that are barely visible.

Since the absorbent capacity of the bandage is better utilized, less will be achieved with the same absorbent capacity absorbent material needed, so that the manufacturing costs are lower, what the impregnation the intermediate layer compensates.

As a result of the impregnation, the intermediate layer 7 becomes somewhat stiff. By the resulting decrease To avoid conformability, the protein excretory agent or the already impregnated A plasticizer can be added to the intermediate layer, e.g. B. polyethylene glycol or glycerine. A 5% Solution of the plasticizer is sufficient.

The usual materials such as cellular wadding etc. are used as the material for the intermediate layer 7.

Claims (4)

Patent claims: 1. Absorbent pad, especially sanitary pad, with a liquid-absorbing part, containing a protein excreting agent, characterized in that the amount by weight protein excreting agent at least equal to the dry weight of the fibers of the absorbent part. 2. A bandage according to claim 1, characterized in that its absorbent part contains ferroammonium sulfate. 3. A bandage according to claims 1 and 2, characterized in that its absorbent Part or the protein excreting agent contains a plasticizer, for example polyethylene glycol. 4. A bandage according to any one of claims 1 to 3, characterized in that the protein is secreted Means is contained in an intermediate layer (7) of the absorbent part (4) of the napkin. Considered publications:
U.S. Patent No. 2,542,909. For this purpose, 1 sheet of drawings 509 717/19 10.65 © Bundesdruckerei Berlin