DE1566359A1 - Sanitary napkin - Google Patents

Description

Mölnlycke AB- _A

Gothenburg, Sweden.

Sanitary napkin

Sanitary napkins generally consist of an absorbent core »a shell and one between soft, usually cotton-like, attached to this and the core Fabric, the envelope usually consists of a proportionately wide-meshed network whose main task is to hold the parts contained in it together and the Allow attachment of the bandage. The network is easy Moisture to the absorbent Sboff so that they is absorbed in it, but does not provide any protection if the absorbent material is penetrated by moisture, and neither can it Prevent seepage from the edge. The invention aims to provide a sanitary napkin which better fulfills these objectives.

According to the invention, the cover consists of a non-woven, the type of material and the material treated or made in this way,

80 »ad7 / 02.22 bad ORIGINAL

that an absorption of liquid in the fabric and a spreading sound Liquid is prevented by the actual shell material, as well as that the shell on the body facing side, i.e. on the inside of the bandage, is perforated. The casing advantageously consists of a hydrophobized :: Fiber material, for example hydrophobized staple fiber wool. Instead, it can consist of a substance that has not been specially treated for this purpose is hydrophobic.

Some embodiments of the invention are shown in the drawings. Fig. 1 shows a first embodiment in cross section, FIG. 2 shows a second exemplary embodiment in cross section, FIG. 3 shows a plan view of the Binding with different patterns of the perforation of the sleeve, Fig. 4 is a plan view with differently formed holes and Fig. 5 shows the longitudinal edge of a 3inde.

In all execution examples the armband consists of an inner core or absorbent body 1, a shell 2 and one between this and Ie.:. Absorbent body located soft layer 3. In addition, a thin layer 4 that spreads the liquid can be inserted into the absorbent body 1.

The absorbent core is advantageously made of dry-defibrated cellulose and the layer 4 in the absorbent body that spreads the liquid from a sheet of cellulose wadding. If necessary, such a sheet can be made of cellulose wadding. on ler inside and Auaseriaeite deö absorbent body ängeonlnst S:.: η χ, 7 / ie Iie3 at 5 bz "v, -S aan in Figure 1 unl 2 reasonable..

eng *: vu iafc. ⁸ AD ORIGINAL

908887/0222

The y / calibration layer 3 hniiii made of a cotton wool-like rayon fiber fabric, which lic.'Sige-ischaft has to let the liquid coming to layer 3 quickly and directly to the absorbent core without the liquid being absorbed in the rusar layer in any appreciable mass or spread laterally in it will. Instead, the fiber layer can consist of synthetic staple fibers, for example polypropylene, which have the same properties as rayon fibers _; but are reinforced so that no liquid is sucked up or spread laterally in the fiber layer.

The soft fiber layer has the property that after it has let the liquid through, it does so isolated at the core. The fiber layer and its surface therefore remain dry after the liquid has passed through.

The sheath 2 surrounding the core and the fiber layer consists of a non-woven fabric of such a nature, that a suction or a transfer of liquid in the case is prevented. The sheath usually docks all of the core and soft layer with the exception of the one Body facing inside of the bandage, on which the cover is perforated to allow liquid to pass through. The entire exposed area is so large that the oncoming liquid directly through the holes and can get through the fiber layer into the absorbent core. After the liquid has passed through the inner

90 9887/0222 bathroom

if you are there HiU Io, the hall is dry and the Vorbndüprinzip voi 1st, ' ηύi. {- verv.'irlrJ lcht. Since the envelope doesn’t absorb the liquid or cannot pass any further ducts, it forms an external protection against penetration ₍ ; and seepage ar: the edges.

In order to make the casing penetration tight, liGiui rie from a wisscrabweiso-idcu or hydrophobized L'tofi consist, for example, of a layer of paper that was passed through a hydrophobic treatment bath, for example through a Par-iffinbad or the like.

In the embodiment according to J ¹ 'ig. 1, the calibration layer 3 extends only within the perforated part of the cover on the inside of the napkin, while in FIG.

VAn Lochutui 7 of the cover can form different patterns _; some examples of which are shown in Figs. 3 and A. The quivers can also be so large that they extend to the longitudinal edges of the bandage, as can be seen from FIG.

909887/0222

Claims (4)

1. Daiiionoiridc; with .Ληοιίΐ oauajkörper and a H'ilio and 3e.3ebenonfM.Lls: iit ei.ier Kwiochon do.n suction body Uiid of the Hill Le lying, cotton-like layer, characterized in that the hall {2) consists of a.u. soft and treated fabric so that the absorption of liquid in the fabric and the spreading of plush gum through the actual envelope equatorial is prevented, and that the envelope is perforated on the side facing the body. 2. Dai.'ionbinde- according to claim 1 _; gekenixZeichi.et by the fact that the cover (2) consists of a hyirophobized: fiber material. 3. Uamenbinde according to claim 1, characterized in that that the shell (2) consists of a.:i inherently hydrophobic Substance is made. 4. Daaenoi-idc according to claim 1, characterized geke nnz eich-, ζ act that the shell (2j on the outer surface mid is liquid-tight at the edges. BATH ORIGINAL 909887/0222