DE2535058A1 - SUCTIVE TEMPLATE - Google Patents

Description

The invention relates to an absorbent template, in particular a diaper, consisting of an inner layer and a water-impermeable one Outer layer that are connected to one another at their side edges and an absorbent layer in between Have base body.

Such templates have a number of disadvantages, including, in particular, their complex production and the small amount Strength properties of the pulp base include. Is the pulp without its own wrapping between the plastic Layers are introduced, then it is distributed unevenly and agglomerates in certain areas. To the An adhesive layer covering the inside of the outer layer is usually used to prevent undesired agglomeration, which reduces the absorbency of the pulp. On the other hand, means a specially coated pulp base an additional number of layers that make up the fluid

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deteriorate the recording properties of the original. aside from that they do not prevent fluid leakage.

In contrast, the invention is based on the object of providing a template which is easier to manufacture and has better liquid absorption properties to accomplish.

A template of the type mentioned at the beginning serves to solve this problem Type which is characterized in that the inner layer is a substantially water-impermeable intermediate layer and has first openings that the absorbent base body has second openings that are the same size as or larger than the first openings, and that the inner layer with their first openings at least one area of the second Openings covering is attached to the outer layer.

The template according to the invention allows rapid entry of liquid due to the first openings as well as a rapid distribution of the liquid in the absorbent base body the second openings. In addition, the water-impermeable intermediate layer provided with small first openings forms an effective barrier against the re-leakage of liquid.

The template according to the invention can be used in many ways, for example as a diaper, as a bandage, as a sanitary napkin, or as a clinical template.

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Further advantages of the invention emerge from the subclaims .

In the following the invention is explained in more detail with reference to the figures; show it:

Figure 1 is a plan view of a preferred embodiment of the invention shown in partial section in the form of a Diaper;

FIG. 2 shows a section along the line 2-2 from FIG. 1;

FIG. 3 shows a perspective illustration of the diaper from FIG. 1 which has been folded up like a cellar fold; and

FIG. 4 shows a partial section through a more recent embodiment the diaper according to the invention.

The figures show a diaper as a preferred embodiment of the template according to the invention with an outer layer, one with first interlayer provided with openings and an absorbent base body in between with second openings, wherein the intermediate layer is optionally covered by an inner layer. Form the inner and / or intermediate layers one or more envelopes of the absorbent base body. The second openings in the main body are proportionate large and allow anchoring of the intermediate layer and / or

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the inner layer through the base body on the outer layer, without the body itself having to be attached. As a result, the base body is without any special covering and held in place without the use of glue. The second openings also allow a rapid passage of liquid.

The interstitial layer has a large number of smaller first

Openings through which the liquid in one direction can seep from the inner layer into the base body. Preferably the holes are for. Prevention of re-emergence of liquid is only provided in an area that is smaller than the base body. The outer layer and the intermediate layer are preferably made of a thermoplastic plastic to keep the outer surfaces of the diaper dry To encourage fluid distribution and to allow anchoring without glue. Your margins are preferred connected to one another to prevent fluid leakage. In a preferred embodiment, there is the inner layer Made of a fiber fleece that feels good on the skin and the contact area with the plastic layer is as small as possible holds.

For better adaptation to the child's legs, the base body have semicircular recesses in the crotch area. The diaper is preferably folded in the manner of a box fold and has several adhesive diaper closures

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Conclusions. The diaper of the present invention has improved Fluid absorption properties, a faster fluid absorption capacity, by means of the outer layer an excellent liquid distribution in the base body and forms one effective protection against re-leakage of liquid. In addition, the diaper according to the invention is simple and Can be produced without additional covering of the pulp base body, without the pulp agglomerating or shifting can take place in the applied state.

The disposable diaper 1 shown in Figure 1 consists of an outer layer 2 and optionally an inner layer 3 with a absorbent base body 4 lying in between and an intermediate layer 5. All layers are for the sake of simplicity of illustration drawn essentially rectangular and have two side edges 6, 7 and two connecting the side edges End edges 8, 9, the edges lying essentially one above the other. However, there are also other forms of Layers are conceivable depending on the intended use, for example a square, triangular, polygonal, or curved one Form or one of these mixed forms.

The outer layer is preferably impermeable to water and usually consists of a thermoplastic or a Thermosetting plastic, for example made of polyolefin such as polyethylene or polypropylene, made of polystyrene, or made of Polyvinyl plastic such as polyvinyl chloride. Mixed polymers,

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Laminates as well as co- and ter-polymers are also used as the outer layer. It is produced by continuous extrusion, by casting or by some other method, preferably in the form of a homogeneous web and can consist of a woven, fleece or felted material, if only the desired impermeability to liquid is achieved. The thickness of the layer can vary and is usually 2.5 µm to 75 µm, with the lighter layers used for diapers being about 25 µm thick, while thicker layers are used for more stressful applications, for example for clinical templates. The intermediate layer is preferably made of the same material with the same liquid impermeability and the same weight. The layers and in particular the outer and intermediate layers can be colored differently for manufacturing purposes, for side identification and for aesthetic or advertising reasons
be. For example, the outer layer can be white while the intermediate layer is blue; the semi-translucent inner layer then appears in the blue color of the intermediate layer and the absorbent base body thus has differently colored sides, on both during manufacture and in the
Operation can be referred to. Other colors and patterns can also be used.

The absorbent base body can consist of any suitable absorbent Fabric consist, for example, of ground cellulose, cellulose wadding or any other woven, non-woven fabric

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or matted, natural or synthetic, fibrous or non-fibrous fabric. A non-fibrous material is, for example, a foam with open or closed Cells. The base body shown in Figures 1 and 2 is essentially rectangular in shape End edges 10, 11 and side edges 12, 13. The end and Side edges are generally spaced from the side and end edges 6, 7, 8 and 9. As mentioned, can also the body have different shapes and sizes. In the diaper according to the invention according to FIGS. 1 and 3, the The base body has arcuate recesses 14, 15 in the side edges 12, 13 in the crotch area. Figure 3 shows most clearly that these recesses 14, 15 prevent excessive bulging in the crotch area and a better fit of the diaper allow the liquid uptake and the protection against liquid re-escape through the non-removed Outer, intermediate and optionally inner layers remain unaffected.

The base body 4 also has a plurality of relatively large second openings 16, which are at a distance from the edges 10, 11, 12 and 13. Through the openings is a direct anchoring of the intermediate layer 5 and optionally also the inner layer 3 on the outer layer 2 in areas 17 possible, as Figure 2 shows. The anchoring can be done in any suitable way, for example preferably by welding, Fusion sealing or gluing take place. The anchoring areas

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occupy only part of the second openings 16. The anchorages effectively hold the base body between the outer layer 2 and the intermediate layer 5 and thereby form a quilted one Template without the base body being attached with glue. He changes neither during the transport nor its position during wear and does not clump in certain areas even when it is wet. The lower one Half of FIG. 2 shows another embodiment with in area 17 not attached to the intermediate layer and / or outer layer Inner layer.

In addition, the diaper according to the invention permits the omission of the usual single-layer or multi-layer base body coverings, which leads to better fluid absorption properties and easier manufacture. The second openings have absorbent Edges 18 for rapid liquid absorption, as the protruding fiber ends at the edges 18 in general liquid is absorbed more quickly than on the inner surface 19 of the base body.

The inner surface 20 of the outer layer 2 serves to distribute the inner layer 3 and the intermediate layer that may be present 5 reaches the edges 10, 11, 12, 13 and 18 and facilitates the absorption in the between the second Openings 16 areas of the base body 4. Since no adhesive is used to maintain the shape of the base body, is

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a better liquid distribution achieved. Between the outer layer 2 and the intermediate layer 5 are in the area of second openings 16 are essentially annular spaces 21 according to FIG 2 provided. These annular spaces serve as a container for those rapidly emerging through the first openings 22 of the intermediate layer 5 Liquid. The suction speed is therefore limited by the first openings 22 in the intermediate layer, than through the absorbency of the base body. Regardless of the relatively low rate of liquid absorption of the base body, no liquid remains on the inner surface 23 of the intermediate layer 5, Instead, the liquid quickly passes through the first openings 22 into the annular spaces 21 and is passed through the edges 18 recorded. Urine therefore only wets the child's skin for a very short time.

The first openings 22 in the intermediate layer are generally smaller and more numerous than the second openings 16 of the base body. For example, the first have openings 22 has a diameter of 0.3 cm, while the second openings 16 in the base body have a diameter of 1.9 cm. This causes the formation of a flow gradient and brings about a large number of liquid inlet openings with the annular spaces 21 or the absorbent body 4 in .Verbverbind and keeps the re-emergence of liquid extremely small amount. In addition, due to the large number of small first openings 22, there are always liquid inlet openings

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openings above the second openings 16 and the annular spaces 21. The small openings 22 are only in a certain area provided according to Figure 1, which is generally smaller than the underlying body 4, whereby liquid escapes by the edges 10, 11, 12 and 13 is prevented. the water-impermeable intermediate, outer and inner layers thus prevent liquid from escaping from the edges of the Diaper.

The inner layer 3 is preferably used to cover the plastic the intermediate layer 5 and consists in particular of a woven or non-woven natural or synthetic fiber material. It supports the passage of liquid to the intermediate layer and serves to protect the skin. The inner layer can also with drugs, chemical substances, deodorants, plasticizers, powders, wetting agents, ointments, surfactants, perfumes, Treated with bactericidal or germicidal agents.

FIG. 3 shows the diaper from FIG. 1, folded like a cellar fold, with adhesive-coated diaper closures 24, 24 ′ and protective films 25, 25 ¹ . To put on the diaper, the toddler is placed with its back on the diaper, the front end A is folded through between the legs, the protective films 25, 25 'are removed and the diaper fasteners 24; 24 ′ attached to the outer surface 26 of the outer layer 2. To form the box fold, glue 27, 27 'can be provided in FIG. 1 at points C and D of the inner layer, whereby the folds 28, 29 are anchored. For packaging and transport

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For the purpose, the diaper can be folded ^{along the line FF 1.} The recesses 14, 15 prevent the diaper from bulging in the area of the fold and ensure a better fit.

Figure 4 shows another embodiment of the diaper according to the invention without an intermediate layer, the inner layer 3 through the second openings 16 is attached directly to the outer layer 2. The interconnected inner and outer layers hold the absorbent base body in its position in the manner described.

The quilted diaper of the present invention has a plurality of raised and recessed surface areas 32 and 34 which give the diaper a pleasing shape. In the created State form the depressions 34 from air pockets over the skin of the toddler, so that the diaper only in certain support areas and is therefore more comfortable to wear. Due to the only occasional concern of the diaper, you get yourself if the diaper is extremely wet, only a few moist areas come into contact with the skin.

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Claims (12)

Expectations η.) Absorbent template, in particular diaper, consisting of an inner layer and a water-impermeable outer layer, which are connected to one another at their side edges and have an absorbent body in between, characterized in that the inner layer is an essentially water-impermeable intermediate layer (5) and has first openings (22) that the absorbent base body (4) has second openings (16) which are the same size as or larger than the first openings (22), and that the intermediate layer (5) with its first openings (22 ) at least one area of the second openings (16) is attached to the outer layer (2) so as to cover it. 2. Template according to claim 1, characterized in that the first openings (22) are provided in an area which is smaller than the base body (4). 3. Template according to claim 1 or 2, characterized in that the base body (4) is smaller than the outer layer (2) is. 4. Template according to claim 1 to 3, characterized in that the base body (4) near the center of the side edges (6, 7) Cutouts (14, 15) for better adaptation in the Has crotch area. 609809/071 9 5. Template according to claim 1 to 4, characterized / that on the intermediate layer (5) one on the intermediate layer and / or inner layer (3) attached to the outer layer is provided. 6. Template according to claim 1 to 5, characterized in that that the outer layer (2) and the intermediate layer (5) are made of plastic and either by welding, are connected to one another by loosening or gluing. 7. Template according to claim 1 to 6, characterized in that the side edges (6, 7) along folds (28, 29) are folded over and anchored with adhesive. 8. Template according to claim 1 to 7, characterized in that that the folds (28, 29) form a box fold. 9. Template according to claim 1 to 8 in the form of a diaper, characterized in that the inner layer (3) and / or the intermediate layer (5) are attached to the outer layer (2) through the second openings (16). 10. Diaper according to claim 9, characterized in that the base body (4) has side edges (12, 13) to which the second openings (16) are spaced apart. 609809/07 19 11. Diaper according to claim 9 or 10, characterized in that the inner layer (3) is permeable to water. 12. Diaper according to claim 9 to 11, characterized in that the inside and / or the outside elevations (32) and recesses (34). ue: hu: bü 609809/0719