DE19645755A1 - Absorbent product such as a sanitary napkin, an incontinence guard, a panty liner or the like - Google Patents

Abstract

A sanitary napkin, a pantyliner or a protector for light incontinent people, intended to be worn in the crotch part inside a pair of underpants, having two long sides 2 and 3 and two short sides 4 and 5, comprising an elongated absorption body 6 and flexible flaps 9 and 10 on the long sides formed of a separate piece of material 11 applied on the side of the elongated absorption body which is intended to face away from the user. The piece of material comprises a layer of liquid-impermeable material and may include a layer of an absorbent material. The napkin may also include leakage barriers comprised of compressions, fused fibres in the covering or absorbing layers, water insoluble adhesive, super-absorbent material, or slits arranged longitudinally or transversely.

Description

Technical field

The invention relates to an absorbent product, such as for example a (women's) bandage, a panty liner or one Protection for lightly incontinent people to wear in the Step in the underwear is determined. The product has in essentially an elongated shape and has two long sides, two narrow sides, two end parts, one between the end parts lying middle part and an elongated absorbent Main part on. Furthermore, it includes one at each Flexible arranged along the side of the product Side flap that are designed to be used around the leg edges of the underwear.

State of the art

Absorbent products of the type mentioned herein and for which the invention is intended used when the absorbency or Absorption capacity is relatively low. For that be Panty liners and mini (ladies) bandages at the end of the Menstrual period used when the discharge is less or between menstruations to make any outflows to record. Protection for slightly incontinent people can ever be used more or less constantly as needed.  

People who suffer from mild incontinence lose only occasionally have droplets of urine, but have in the general control over the emptying of the bladder. Easy Incontinence is the so-called example Droplet incontinence that occurs when the incontinence, usually a man who has trouble after Urinate to empty the urethra completely. Another Kind of mild incontinence that is common in women can occur with physical exertion, for example when running, jumping, coughing or sneezing.

For this category of users who are not big Absorbency / Absorbency are different Product requirements, such as the User comfort and a discreet design, in one greater extent than for products that Intake of a relatively large amount of liquid determined are.

An absorbent product like a (women's) bandage Incontinence protection or a panty liner usually a liquid permeable Surface layer, a liquid impermeable Barrier layer and an absorbent body which is arranged in between. The surface layer is on the Side of the absorbent product arranged during indicates the use to the body of the user. The Barrier layer is on the absorbent side Product that is removed from the body during use Is directed away.

(Ladies) bandages, panty liners and incontinence protection usually in the user's underwear crotch attached with the help of an adhesive that is in series or in other patterns on the barrier layer on the back of the Product is applied. To the with the adhesive provided surfaces during storage and  To protect transports, they will be protected before use a release protective strip treated with an agent covered, which is removed by the user if that absorbent product / underwear, especially a pair of panties or panties becomes.

So that the absorbent product from underwear is removable, the adhesive should adhere to the adhesive its solubility balanced. That means that for the user may experience a problem that is that the product differs from the Underwear either partially or completely dissolves. Even if the product dissolves only partially, it will in all probability push together and fold throw. As a result, body fluids can leak out or leak, especially around the edges of your underwear.

To solve this problem, it is known to be the absorbent To provide the product with side flaps, which differ from its Extend the long sides. Such side flaps are designed to stick to the edges of the user's underwear to be folded around and attached to the outside. This is usually done with the help of adhesives, which are applied to the back of the flaps. To this In this way, the flaps reduce leakage of Body fluids from underwear; partly by physically protect the edges of the underwear, in part by providing better attachment of the Ensure the product in underwear. Mounting flaps of this type are, for example, in following publications: SE 455 668, US 4,285,343, EP 130,848, EP 134,086 and US 4,608,047.

Another problem with this type of product according to the one around described genus, which relates to the invention in that the product is considered airtight and  is sweaty or sweaty. this is the Follow the previously described page of the product, the points away from the user's body during use and with a layer impermeable to liquids Prevention of leakage through the product Is provided.

A number of different attempts to solve this Problem by creating an absorbent product, that is permeable, but also airy and comfortable, have been done before. For example, in EP 104 906 there is a panty liner described a barrier layer made of a material has waterproof but vapor permeable. However, materials with this property are expensive to manufacture. Furthermore, it is difficult to use these materials to give a textile-like surface structure. The The latter means that the user continues to use the item perceived as airtight and sweaty. An alternative Solution, as described in US 4,681,578, exists in designing the barrier layer so that it merely a longitudinal middle part of the back of the Product covered. The barrier layer covers the entire Length of the panty liner, but leaves the lengthwise Edge parts free. A major disadvantage with this solution is in that in this way areas of the middle part the (ladies) bandage, d. H. the middle third of the (ladies) bandage, which is intended to be the bulk of the user absorb any fluid that has been spilled, none Has liquid barrier layer back. This increases that Passage risk of such (women's) sanitary napkins is dramatic.

Presentation of the invention Technical problem

The technical problem underlying the invention (Task) is to fix the above problems and an absorbent product for low fluid flows to provide or quantities that in the underwear of Can be securely attached to the user and one liquid-impermeable back in the area of the Product where necessary. This will receive an absorbent product, the one Seepage security, but still airy and is comfortable to wear.

Another technical problem of the invention is to provide an absorbent product which Absorbent material distributed so that more absorbent material is available where it is necessary.

Solution of the technical problem

A generic product in which the at the state of Technology problems essentially avoided be, according to the invention by side flaps featured that from a separate piece of material are formed, which extends across the absorbent body extends at the middle of the product and from the Long sides of the absorbent body on both of them Pages protrude, with the separate piece of material at least one liquid-impermeable barrier layer comprises, which rests on the side of the piece of material or is arranged by the absorbent body of the Shows the product away.  

According to an alternative embodiment of the invention this further characterized in that the piece of material comprises a layer of absorbent material attached to the Side of the piece of material rests on the absorbent Main part shows.

The surfaces of the product by the liquid-impermeable layer on the separate Pieces of material not covered can be at least partially covered by a liquid-permeable layer of material be. Such a liquid-permeable layer of material can on the one hand be a liquid permeable Form surface layer on the side of the product that intended for use to the user to indicate, on the other hand, a surface layer on the form opposite side of the product which during use is intended to point away from the user. in the the latter case can be the liquid-permeable Surface layer only on parts of the absorbent Main part attached by the liquid-impermeable layer on the separate Material are not covered or they can spread over the extend the entire surface of the absorbent body. This allows such a liquid-permeable Layer between either the separate piece of material and the absorbent main part of the product or outside the separate piece of material. It can Advantage, the liquid-permeable layer to be arranged outside the separate piece of material, since the Back of the product, d. H. the page that was created during the Use away from the user in this way uniform, aesthetic and attractive surface offers. Advantageously, a soft, soft, skin-friendly, textile or textile-like material, such as for example nonwoven or the like, for such Surface layer selected.  

On the long sides of the elongate absorbent body of the product may also have side pass barrier layers be provided by extending longitudinally Compresses or densifications, fused together Fibers in the main absorbent part or in the cover layer, liquid insoluble adhesive between the Side flaps and the absorbent body applied are superabsorbent materials used in the longitudinal edge parts of the absorbent body are mixed in, or in the side edges of the absorbent material arranged slots formed be.

Passage barriers can also be on the Length direction of the product between its Middle part and its end parts can be arranged to a Limit forwarding in the longitudinal direction. The transverse pass-through layers, d. H. the ones across Longitudinal direction of the product are arranged, can suitably be in the same manner as that previously described side passage barrier layers, d. H. through compression or flattening, with each other fused fibers in the covering material or in the absorbent body, water-insoluble adhesive, super absorbent materials or slots.

The combination of security against lateral leakage and air permeability is by the present invention by means of the from the long sides of the absorbent Main part, which is formed from a separate piece of material is reached, extending side flaps. The absorbent Most of the product lacks one liquid impermeable back in the outside of the Parts or areas of the material.

The liquid-impermeable back, the absorbent Products of the type to which the invention relates are conventional  is the main reason why the product is considered is felt airtight and sweaty or sweaty. For (ladies) sanitary napkins, panty liners or protection for light incontinent people according to the present invention are trained, it is possible to wear comfort increase without a reduced security against a Leakage is hereby given. How this is done will be described in more detail below.

To minimize the risk of any Body fluids that are outside the midsection of the Perhaps absorbed by the product Leaking out the back of the product can be another hydrophobic cover layer can be arranged on the back. Such a layer repels liquid and that reduces small amounts of liquid that it is on somehow managed to get to the end parts of the To get out of the product, but still allows air circulation and passage of water vapor from the product.

Another effect caused by this is that the parts of the back of the product, d. H. the side of the Product created by the user during use shows away that is not covered by the separate piece of material are free of waterproof material.

Within these areas, the front and back end parts of the product, the back of the Product from the surface of the absorbent Main part that points away from the user or from another liquid-permeable top layer. With front and Back end parts of the product are meant the parts that next to the narrow sides of the product, and the are intended to be used forwards or facing the user. The end parts of the Product surround its middle part. The middle part is  the part of the absorbent body on which the Long sides are hemmed by the side flaps. It is it can be seen that the absorbent product is roughly divided into three Parts can be divided: the middle part and the end parts each make up a third of the total length of the product.

According to an alternative embodiment of the invention the piece of material has a surface made of absorbent Material that becomes the main absorbent part of the product points, and a surface made of liquid-impermeable Material derived from the main absorbent part of the product is directed away.

In this way there is a greater absorption capacity in the Area where the absorbent body of the Product through the piece of material that the side flaps forms, is covered. The area with overlapping or overlapping absorbent material corresponds to Seen in the longitudinal direction essentially the middle third of the absorbent product. Since this is also the area of Product that is the larger during use Take up part of the excreted body fluid and to absorb, it is extremely advantageous that this Area has a good absorption capacity.

Due to the structure according to the invention with the side flaps, the guarantee secure attachment during use, and with an increase in absorbent material in the middle part of the product, is the risk of oozing at the end parts of the product minimal. Because of this, it is possible to End parts of a liquid barrier layer Release material and in this way to these parts allow high air permeability and To have water vapor permeability.

Another way to further minimize the risk that Body fluids that may be on the outside of the body  Midsection of the product were absorbed by the Leaking back of the product is that super absorbent material in absorbent material in the Limit the final parts of the product. With the term "Super absorbent materials" are such polymer absorbent materials in the front of powder, Particles, granules, foils or the like are meant, the soak up a multiple of its own weight in liquid can by forming an aqueous gel. Super absorbent Materials prevent the spread of liquid in the absorbent body through absorption and chemical Binding of the liquid. Work this way super absorbent materials both as absorbent material and as a barrier against leakage from the absorbent body.

Due to the design of the product with Side flaps that hold the product in the underwear of the Keeping the user in a desired position can Product does not slip out of this position or itself unfold. Because of this, liquid poured out by the user hit the product in the middle part and through the part of the absorbed main body, which between the Flap lies.

Because the piece of material that forms the side flaps is a absorbent material comprising, under the absorbent Main part of the product near the reception area for This area becomes a liquid have sufficient absorption capacity sufficient to remove essentially all of the liquid that flows during the Use of the product is absorbed. The absorbed body fluid will move away from the recording area no further than any remarkable degree spread out, since the amount of liquid is relatively small. The Parts of the product which are placed outside the through the flaps of the absorbent body of the  Product area must be due whose have no liquid barrier back.

To allow liquid to seep out of the side flaps prevent it, it may be appropriate to use perimeter barrier layers along the long side edges of the absorbent body between these and the projecting side flaps to arrange. Such edge permeability barrier layers can be condensed patterns of different types, for example by mechanical or thermomechanical Densifications or be formed by ultrasound. It is just as conceivable, edge passage barrier layers by melting of thermoplastic material in for example the Top layer of the product or in its absorbent Form the main part by means of heat or ultrasound, so that liquid-tight barrier layers between the absorbent Main part of the product and its side flaps formed will. The thermoplastic material can be in the form of a thermoplastic film or fibers or particles, which are included in a nonwoven cover layer, or in absorbent body are mixed. Liquid barrier layers can also by the Use of liquid-resistant adhesives between the side flaps and the absorbent body be formed or by including super absorbent materials in the peripheral parts of the absorbent body. Such super absorbent Materials bind the absorbed body fluid, and on this prevents them from coming out of the side flaps be transported out. Another measure to Obtaining an obstacle to preventing Body fluid passes the side edges of the product and getting into the side flaps is slits or cuts in the absorbent material along the Arrange side edges of the product.  

If it is determined to be suitable, it is possible corresponding liquid barrier layers in the transverse direction to the longitudinal direction of the product between the middle part to arrange the product and its end parts to the Spread liquid in the longitudinal direction of the product to restrict.

Conventional absorbent products with side flaps are usually made from a continuous volume from the different material layers Cut out material included in the product. On this causes the side flaps to be cut out a comparatively large amount of material used as waste get lost. It is with a product according to the invention however, the longitudinal components of the Cutting the product out of a tape, and that Material piece that forms the side flaps from another Form tape material and the two thus obtained Connect parts in one unit. Because they are so cut out parts both one essentially have a rectangular shape, only a small one The amount of material is lost, and because of this, it can Product made with a minimum of material waste will.

However, for the purposes of the invention it is not necessary that the separate piece of material that the side flaps and the Liquid barrier backside of the product forms, be completely rectangular. At Products designed to absorb and absorb something Larger amounts of liquid are thought, it may be suitable be that part of the piece of material that is the absorbent Body covered, is slightly wider than the parts of the Piece of material that forms the side flaps. In this way becomes a larger area of the middle part of the product through the liquid impermeable layer on the separate piece of material covered. In the event that the separate  One piece of material also includes absorbent material such alternative training also in addition Increase absorption capacity of the product.

Brief description of the drawings

The following are for further explanation and for better Understanding the invention under several embodiments Reference to the accompanying drawings and described. It shows:

Fig. 1 shows a panty liner according to the invention, seen from the width of the panty liner, which is determined hinz eigend during use to the body,

Fig. 2 shows a panty liner according to Fig. 1, seen from the side of the insert, which is intended during use facing away from the body,

Fig. 3 is a cross sectional view taken along the line III-III through the device shown in Fig. 1 panty liner,

Fig. 4 is a cross sectional view of a panty liner according to a further embodiment which represents an alternative to that shown in Fig. Panty liner shown 3,

Fig. 5-11 different configurations of the edge portions of Durchlaßsperrschichten on a (women) binding according to the invention,

12 has. A (women) binder, the transverse Durchlaßsperrschichten,

Fig. 13 is a binder according to the invention (women), seen from the side of the napkin (women), which is determined hinz eigend during use to the body.

Ways of carrying out the invention

The panty liner shown in FIGS . 1-3 comprises an absorbent main part 1 . The absorbent main part 1 , like the panty liner, has an essentially elongated rectangular shape and is delimited in plan by two long sides 2 , 3 and two narrow sides 4 , 5 . The panty liner also has a central part 6 , which is arranged in the longitudinal direction of the product between its two end parts 7 , 8 . Both the middle part 6 and the end parts 7 , 8 each take up about a third of the length of the product.

Two side flaps 9 , 10 , which are formed from a separate piece of material 11 , extend from the longitudinal sides 2 , 3 of the absorbent main part 1 to each side of the absorbent main part 1 . The separate material part 11 extends across the absorbent main part 1 at the middle part of the product and is formed from a liquid-impermeable barrier layer 12 and a layer of absorbent material 13 .

The barrier layer 12 is formed from a liquid impermeable material. Thin waterproof plastic films are suitable for this purpose, but materials can also be used which are initially liquid-permeable but are provided with a coating of plastic, synthetic resin or another waterproof material. This prevents fluid permeability from the underside of the absorbent product. The barrier layer 12 can of course also be formed from any type of material that meets the criteria for liquid impermeability and that has sufficient flexibility and a low tendency to irritate the skin. Examples of such materials which are suitable as a barrier layer are plastic films, nonwovens and multilayered formations thereof. The plastic film can for example consist of polyethylene, polypropylene or polyester. The barrier layer may alternatively be formed from a laminate of liquid impervious plastic layer facing the absorbent body and a nonwoven facing the user's undergarments. Such a structure results in a passage-proof barrier layer with the feeling or the appearance of a textile.

The absorbent layer 13 is suitably formed from cellulose pulp like the absorbent main part 1 of the panty liner. This is available in rolls, bales or sheets, which are dry-fiberized and converted into a fleece in fluffy form, usually with the inclusions of so-called superabsorbent materials, which, as described above, are polymers with the property of several times their own weight in water or absorb body fluids. Examples of other usable materials are various types of natural fibers such as cotton fibers, peat or the like. It is of course also possible to use absorbent synthetic fibers or a mixture of natural fibers and synthetic fibers. The absorbent material may further comprise other ingredients such as shape stabilizing agents, liquid spreading agents or binding materials such as thermoplastic fibers which are heat treated to hold short fibers and particles together to form a coherent unit. It is also known to use various types of absorbent foam materials or foamed materials in the absorbent body.

The absorbent body 1 can be made from a porous, loosely held material or from a more compact absorbent material with good holding properties. In the event that a more porous material is chosen, the side of the absorbent body 1 , which is intended to point towards the underwear of the user during use, should be covered by a covering layer of, for example, nonwoven fabric. This is so that the absorbent body is held together and does not dissolve or form bulges or poses during use. If the absorbent body does not have a special outer material layer at the end parts of the panty liner, special requirements are placed on the absorbent material. This must then be made of a material with high abrasion resistance and good integrity or unity, ie the ability to stay together in the dry state and preferably even in the wet state. Examples of absorbent materials with high abrasion resistance are polymer foams, bound absorbent nonwovens and nonwovens with restricted bindable agents.

The piece of material 11 is fastened to the absorbent main part 1 of the panty liner, for example by gluing, welding or sewing, and has an absorbent layer 13 , which points towards the absorbent main part 1 of the panty liner, and has the liquid-impermeable barrier layer against the rear side 14 of the panty liner, from the absorbent main part 1 is directed away. Fig. 2 shows the liquid-impervious barrier layer 12 as a shaded area on the back of the panty liner.

Fig. 13 shows an alternative shaping of the material piece 11. The figure shows a (ladies) bandage which has a piece of material which has a substantially rhombic shape, where the two diametrically opposed corners are formed by the side flaps 9 , 10 and the other two diametrically opposed corners form flaps 27 , 28 , which extend to or partially over the end parts 7 and 8 of the (women's) sanitary napkin. Whether these flaps 27 , 28 also extend over the end parts 7 , 8 on the material piece 11 according to this embodiment depends on the definition of the middle part 6 and the end parts 7 , 8 and on the size ratio of the (women's) sanitary napkin.

Since the flaps 27 , 28 of the piece of material 11 cover a large part of the back of the sanitary napkin, it follows that a large part of the back of the absorbent main part 1 will be covered by a liquid-impermeable barrier layer 12 , which increases the security against Oozes out. In the event that the piece of material 11 also comprises an absorbent layer 13 , this also creates increased absorbency in these areas, which in itself also contributes to increased security against permeability.

The absorbent body 1 of the panty liner is covered by a surface layer 15 disposed over the surface of the absorbent body 1 which faces the user during use. The material in the surface layer can be, for example, a perforated plastic film, a mesh made of plastic or textile material, a nonwoven or a laminate made of, for example, a plastic layer and nonwoven layer. The plastic can be a thermoplastic, for example polyethylene. The nonwoven material can be made of natural fibers such as cellulose or cotton or made of synthetic fibers such as polyethylene, polypropylene, polyester, polyurethane, nylon or regenerated cellulose.

The main function of the top layer 15 in the panty liner is to guide liquid into the absorbent body 1 , which is soft and comfortable against the body of the user, to prevent so-called rewetting, that is to say that the liquid taken up in the body is pushed back towards the main side. For comfort and to prevent skin irritation, it is important that the surface of the portion of the panty liner that comes into contact with the skin is kept as dry as possible during use. A dry surface on the panty liner is felt or considered by the user to be cooler and more comfortable during use, and when the panty liner is to be changed, such a surface is more pleasant to look at and handle than a soiled, wet surface.

If an absorbent layer 13 comprised in the material piece 11 is made of a low-wear material with good cohesion, the surface layer 15 need not cover the part of the material piece 11 which forms the side flaps 9 , 10 . In the figures, however, the surface layer 15 extends over both the surface of the panty liner and the side flaps 9 , 10 .

Each of the side flaps 9 , 10 is equipped with a fastening means 16 , 17 for fastening the panty liner in the user's underwear. The fasteners are formed from a surface of self-adhesive glue, but the fasteners can also, as already mentioned, be of any other kind, such as Velcro®, clips, push buttons or the like. When the panty liner is used, the side flaps 9 , 10 are folded around the leg edges of the user's underpants or briefs and fastened to the outside of the panty by means of the fastening means 16 , 17 .

It is of course possible to devise a number of other suitable patterns for the fastening adhesive in addition to those shown in FIG. 2. The fastening adhesive can also be used to check and control the liquid permeability of the back of the product in the area not covered by the liquid impermeable barrier layer of the separate piece of material.

FIG. 4 shows an embodiment which is an alternative to that shown in FIG. 3. In the embodiment according to FIG. 4, the piece of material consists only of a barrier layer 12 . The absorbent layer 13 has been omitted. This embodiment is extremely suitable for products designed for an extremely limited flow of body fluids, such as panty liners for outflows between periods.

As previously mentioned, the main absorbent body is provided with edge passage barrier layers 18 to prevent passage on the flaps. Different configurations of these barrier layers are shown in FIGS. 5-11. The perimeter barrier layers can run the entire length of the absorbent body, but can only cover the area between the flaps.

FIGS. 5 and 8 show Randdurchlaßsperrschichten 18 which have a sinusoidal shape. Fig. 6 shows perimeter barrier layers with two different, alternatingly repeating patterns. A sinusoidal waveform 19 is interrupted by a curved portion 20 on the perimeter barrier layer 18 . The edge passage barrier layers 18 shown in FIG. 7 have only curved portions 20 . Fig. 9 shows perimeter blocking layers 18 with an interrupted pattern. Each interrupted part has an S-shape 21 . These S-shaped sections 21 are arranged slightly overlapping in an essentially straight row one behind the other and together form the edge passage barrier layer 18 . FIGS. 10 and 11 also show Randdurchlaßsperrschichten with broken patterns. In Fig. 10, the Randdurchlaßsperrschichten 18 include a repeating pattern with slightly overlapping semi-circles 22nd In FIG. 11, the perimeter barrier layers 18 are formed from a repeating pattern that has an E-shaped exterior 23 . The E-shaped sections 23 overlap in such a way that the openings alternatively face the edge 24 of the (women's) sanitary napkin and alternatively the central part 25 of the (women's) sanitary napkin.

The absorbent product can be on the side facing the body is intended to point the user, as well Passage barrier layers to be equipped, arranged transversely to distribute the product lengthways prevent.

Fig. 12 shows how passage blocking layers 26 can also be arranged transversely on a (women's) sanitary napkin. The same pattern 22 as used in FIG. 10 for perimeter barrier layers 18 is shown in this figure. It is just an example. Of course, all of the patterns shown as perimeter blocking layers 18 and in Figures 5-11 are also suitable as transverse blocking layers 26 having the same appearance as the perimeter blocking layers 18 .

The transverse passage barrier layers are suitably aligned with the side flaps 9 , 10 where they run out of the main absorbent part 1 , ie two transverse passage barrier layers enclose the part of the panty liner which is provided with a liquid barrier layer on the opposite surface, on the surface, which is intended to point to the user. The passage blocking layers are also arranged on both sides of the separate piece of material. If the piece of material has a shape other than that shown in the figures, the passage barrier layers will follow this shape approximately.

The patterns above as opportunities for Passage barriers have been shown are merely exemplary. Many other patterns are possible. The Main criterion regarding the functioning of the pattern is natural that it prevents liquid from escaping from the Spread out patterns and that it is not the product too stiffens or rubs the user. With the help of such Patterns as described in the figures can other goals besides passage security can be achieved. You can stiffen the product where it is necessary or you can shape the product, for example one for it give three-dimensional shape.

Even if the above invention is for the purpose of simplicity for a panty liner, it is natural possible that the embodiments shown as well as Protectant for light incontinence, mini (ladies) bandages or Similar absorbent products can be used fall within the scope of the invention.

Claims (22)

1. Absorbent product, such as a (sanitary) bandage, a panty liner or a protection for slightly incontinent people, which is intended to be worn in the crotch in the underwear, which has an essentially elongated shape and two long sides ( 2 , 3 ), has two narrow sides ( 4 , 5 ), two end parts ( 7 , 8 ) and a middle part ( 6 ) lying between the end parts, and an elongate absorbent main part ( 1 ) and a flexible side flap arranged on each long side ( 2 , 3 ) of the product ( 9 , 10 ), which side flaps ( 9 , 10 ) are intended to lie around the leg edges of the underwear during use, characterized in that the side flaps ( 9 , 10 ) are formed from a separate piece of material ( 11 ), which extends across the absorbent body ( 1 ) on the middle part ( 6 ) of the product and from the long sides ( 2 , 3 ) of the absorbent body ( 1 ) on both sides d protrudes from the absorbent body ( 1 ), the separate piece of material ( 11 ) comprising at least one liquid-impermeable barrier layer ( 12 ) attached to the side of the piece of material ( 11 ) facing away from the absorbent body ( 1 ) of the product. 2. Absorbent product according to claim 1, characterized in that the piece of material has a layer of absorbent material ( 13 ) which is attached to the side of the piece of material ( 11 ) facing the absorbent main part. 3. Absorbent product according to claim 1 or 2, characterized in that the surfaces of the absorbent main part ( 1 ) of the product, which are not covered by the material piece ( 11 ), are at least partially covered by a liquid-permeable surface layer. 4. Absorbent product according to claim 3, characterized in that the liquid-permeable layer ( 12 ) is arranged on the side of the product which has the liquid-permeable surface layer. 5. Absorbent product according to claim 3 or 4, characterized in that the liquid-permeable surface layer on the Side of the product is arranged, which is the does not have a liquid-impermeable layer. 6. Absorbent product according to one of claims 3-5, characterized in that the liquid-permeable surface layer is arranged on both sides of the product. 7. Absorbent product according to one of the preceding claims, characterized in that the edges on the long sides of the elongate absorbent main part have edge passage barrier layers ( 18 ). 8. Absorbent product according to claim 7, characterized in that the edge passage barrier layers ( 18 ) consist of longitudinal compression or flattening. 9. Absorbent product according to claim 7, characterized in that the edge passage barrier layers ( 18 ) consist of melted fibers in the cover layer. 10. Absorbent product according to claim 7, characterized in that the edge passage barrier layers ( 18 ) consist of melted fibers in the absorbent body. 11. Absorbent product according to claim 7, characterized in that the edge passage barrier layers ( 18 ) consist of water-insoluble adhesive which is applied between the side flaps and the absorbent main part. 12. Absorbent product according to claim 7, characterized in that the edge passage barrier layers ( 18 ) consist of superabsorbent material which is mixed in the longitudinal edge parts of the absorbent main part. 13. Absorbent product according to claim 7, characterized in that the edge passage barrier layers ( 18 ) consist of slots which are arranged in the side edges of the absorbent material. 14. Absorbent product according to one of claims 1-6, characterized in that passage blocking layers ( 26 ) are arranged transversely to the longitudinal direction of the product between the central part of the product and its end parts in order to limit the spreading of a liquid in the longitudinal direction of the product. 15. Absorbent product according to claim 14, characterized in that the passage blocking layers ( 26 ) consist of compaction or flattening. 16. Absorbent product according to claim 14, characterized in that the passage barrier layers ( 26 ) consist of molten fibers in the cover layer. 17. Absorbent product according to claim 14, characterized in that the passage blocking layers ( 26 ) consist of melted fibers in the absorbent main part. 18. Absorbent product according to claim 14, characterized in that the passage barrier layers ( 26 ) consist of water-insoluble adhesive. 19. Absorbent product according to claim 14, characterized in that the passage barrier layers ( 26 ) consist of superabsorbent material which is mixed into the absorbent body. 20. Absorbent product according to claim 7, characterized in that the passage blocking layers ( 26 ) consist of slots. 21. Absorbent product according to one of the preceding Expectations, characterized in that the end portions of the main absorbent portion include super absorbent materials. 22. Absorbent product according to one of the preceding claims, characterized in that the material piece ( 11 ) has flaps ( 27 , 28 ) which extend to or partially over the end parts ( 7 , 8 ) of the (women's) sanitary napkin.