RU2394542C2 - Absorbing product with improved elastic means - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention relates to medicine and to absorbing product, such as diaper, product, used in case of incontinence, hygienic pad, pad for knickers intended for everyday use, one or several parts of said product containing elastic means which retain means for skin care in their structure. Means for sin care is located with possibility of its release when elastic means is stretched during absorbing product application and elastic means absorbs less than 20% of water or urine.

EFFECT: invention allows to reduce traction in affected zones and prevent migration of means for skin care into other parts of product.

16 cl, 3 dwg

Description

Technical field

The invention relates to an absorbent article, such as a diaper, an incontinence article, a sanitary napkin, panty liner or the like, one or more parts of said article containing elastic means that hold the skin care product in their structure.

State of the art

The main purpose of absorbent products, such as diapers, incontinence protectors, and hygiene products, is to absorb various body excretions, such as urine, feces, menstrual fluid, and the like. To ensure that the products will fit against the wearer's body to ensure tightness, absorbent products are usually provided with various types of elastic elements (elastic bands), such as an elastic element for the waist or an elastic element for the legs. It is also common to place various elastic devices connected to the crotch zone to prevent lateral leakage from the zone that will be exposed to the bulk of the body’s secretions. Thus, the elastic elements contribute to guaranteeing a snug fit of the absorbent product to the body of the user, so that neither body excretion nor odor will leak out into the environment.

Since the goal is to ensure that the product is tightly tensioned during use, problems can easily arise due to the parts of the absorbent product that fit most closely to the wearer's body, rubbing the skin. Additional problems arise when secreting the body, while these body excretions can cause irritation of adjacent skin surfaces. In addition, rubbing leads to the fact that the skin becomes more susceptible and more sensitive to negative influences from excrement and urine and those media that arise as a result of these secretions in the product when it is exposed to them.

These problems can be resolved by applying manually skin care cream to the affected areas when changing the product. However, the disadvantage of this procedure is that the product is usually not changed until the body is excreted, which means that the product will cause rubbing for long periods between replacements. In addition, it is also easy to forget to apply a cream for skin care or to apply it hastily, so that the smearing of creams on the surfaces of the skin will be carried out carelessly.

In addition, in cases where the ointment or lotion is applied to the skin before attaching the absorbent article to the user, some of the substance can move and penetrate the surface layer of the absorbent article and prevent, for example, the absorption of urine by the absorbent body. Manual application also means that when the applied skin care product is completely absorbed by the skin, it will be completely “consumed”. In addition, the caregiver may believe that applying the skin care product directly to the skin is an uncomfortable and unhygienic operation, not only because the use of an ointment or the like may cause the product to stick, but also due to that the user, for example, may have infected wounds and the user may have scabs that the caregiver should even touch, even though he or she does not want to do so. Similarly, the user may also not want the carer to touch the wound or sensitive skin directly with his or her hands.

In order to solve these problems, a number of attempts have been made to create absorbent products with different types of creams, ointments, lotions, or the like. One example is WO 96/16682, wherein the above-mentioned problem is solved by adding therapeutic or protective components by means of a lotion that has been applied to a liquid-permeable surface layer. It is even claimed that the diaper in accordance with WO 96/16682 can solve related problems, such as poor entry into the liquid-permeable surface layer, by using a hydrophilic lotion on the surface layer.

However, the use of the diaper described in WO 96/16682 has a number of problems. During each process in which the lotion is applied at a high speed to a liquid-permeable material, it is in principle impossible to avoid partial clogging of at least some of the pores on the liquid-permeable surface layer. Attempts to avoid or in any case minimize the severity of this problem can be made by applying lotion in the form of lines or certain patterns on a liquid-permeable surface layer. However, the problem of clogged pores remains with a certain application pattern.

Additional problems are that the lotion can migrate down from the surface layer or from other parts of the absorbent article to which the ointment or lotion has been applied, and down through the pores, thereby preventing absorption of the liquid by the absorbing body. This problem is eliminated by the manufacture of lotions and lotion stabilizers with specific melting points, which should preferably be completely or at least partially solid at room temperature and should begin to melt, preferably only under the influence of body temperature.

Despite the modification of the lotion, the product is exposed to conditions such as more extreme temperatures before use, for example during transportation and storage, which means that the lotion can nevertheless migrate, at least partially, and therefore cause deterioration the release of precipitates into the absorbent article due to clogging of the pores of the surface layer and, consequently, also indirectly of the absorbent core. Migration of the lotion to the absorbent core can also lead to a direct decrease in absorbency. Problems associated with migration arise, for example, when the product is in a warm warehouse or stored under other warm conditions that occur in everyday life. Accordingly, there are situations where it is impossible to protect yourself from the above problems simply by modifying the lotion so that it will have a certain melting point.

WO 99/22684 describes a canvas with at least two different types of skin care material. The canvas is attached to various places on the diaper, for example, to the surface layer, liquid barriers or the like. In this case, no particular attention is paid to the problem of clogging of pores as a result of migration.

EP 1 358 863 describes hydrogels containing a lotion with a certain elasticity and their use in absorbent articles. The lotion is introduced into the chemical structure of hydrogels and is released continuously through migration into the material. In an absorbent article, this means that there is a danger of the lotion migrating from the hydrogel to other parts of the product during transportation and storage of the product. Needless to say, this means that the active component does not achieve the desired effect when using the product. In addition, improperly placed lotion can adversely affect the ability to receive fluids and the absorption capacity of an absorbent article due to a change in the wettability of the liquid-permeable surface layer and the absorbent material of the article. Hydrogels also have a high ability to absorb water, which means that when they are used in an absorbent article, they absorb the fluid released by the body and thus become wet, so that they make the skin of the user wet or wet when they are attached to it. This is unacceptable because wet skin is more prone to rubbing and other irritations.

Therefore, the object of the invention is to propose a solution involving transferring skin care products to particularly vulnerable skin areas. In addition, the invention is intended to solve the problem of packaging and storage so that the skin care product does not affect the absorbent article. The invention makes it possible to ensure sufficient transfer, for example, of a lotion without the negative effect of the lotion on the release of secretions into the absorbent article or the absorption capacity of the absorbent article. There is a need for a solution that makes it possible to use a skin care product in an absorbent article or the like, both for prevention and to reduce skin rashes or irritations, or to facilitate the care of various types of pressure sores, or the like. In addition, there is a need for a tool that provides more options for skin care at a predetermined location than with lotion-coated surface areas in diapers. In addition, there is a need for an absorbent article that minimizes friction between sensitive skin (damaged skin or where it is desirable to prevent damage to the skin) and an absorbent article, and one way to minimize friction is to use means that can reduce friction between product and leather. Therefore, there is a need for a tool that not only provides transfer of skin care products, but also minimizes friction in the affected areas. In addition, there is a need for an economical solution to the above problems.

Description of the invention

By means of the present invention, an absorbent article of the type mentioned in the introduction has been obtained which substantially eliminates the problems that exist when using previously known similar absorbent articles.

An article made in accordance with the invention is mainly characterized in that the skin care agent is arranged to release it when the elastic agent is stretched during use of the absorbent article, and in that the elastic agent absorbs less than 20% of water or urine.

Placing the skin care product in the structure of functional elastic products that are contained in the absorbent product and which differ, inter alia, in their ability to stretch, promotes the release of skin care products from the elastic product only when the absorbent product is used. In addition, the elastic means can be processed so that the skin care product will not stand out until the stretching or elongation of the elastic means exceeds a certain threshold value. Conventional elastic means in the absorbent article were processed during the manufacturing process in an unstretched and non-elongated state to allow the skin care product to be absorbed into their porous structure by indentation or swelling due to the skin care product.

Elastic means that have been filled with a skin care product can be attached to the absorbent article in a given state in which they are not previously stretched. However, usually elastic means stretch during fastening. Therefore, in order to avoid inadvertent release during the manufacture of the absorbent article, it is advisable that the release does not occur before a certain threshold elongation is reached. Another way to ensure that the skin care product will remain in the elastic product even when it is stretched during the manufacture of the absorbent product is to use skin care products that are solid or viscous at room temperature but melt and become fluid or less viscous when heated to body temperature. Such skin care materials are activated and can only be released when the absorbent article is used and subjected to simultaneous heating and stretching. Due to the fact that the skin care product is held mechanically in place in filled elastic products, it is not affected only by heating during transportation and storage or only by stretching in the manufacture of an absorbent article. Therefore, an elastic agent filled with a skin care agent holds the skin care agent in a secure “storage” state until an absorbent article containing the elastic agent is used. The skin care product is protected from bacteria by means of this storage, and its migration during storage and transportation is also prevented.

Only when the absorbent article is worn, when the elastic means are stretched and, therefore, their structure is changed and compressed, the skin care product is extruded through the structure of the elastic means. In this case, the transfer of skin care products takes place in areas where the elastic material and, consequently, the product are most closely adjacent to the user's body, that is, where the risk of rubbing and irritation is greatest. It is expected that most of the skin care product will be extruded onto the adjacent skin upon the first stretching of the elastic products. However, an additional advantage of the invention is that the remaining skin care product will be extruded continuously during use, since the elastic product will be further stretched when the user stretches it and moves it. An additional advantage is that since the skin care product is firmly held in elastic products, a wider range of skin care products can be used by using conventional elastic products that do not interact with the skin care product, thereby minimizing effect on the action of skin care products.

In this case, the term "functional elastic means" is intended to mean such elastic means that are commonly used in absorbent products and have the ability to hold the product in close proximity to the user's body. In this regard, the elastic means that are mentioned are able to independently maintain the necessary elastic effect and, therefore, have a high modulus of elasticity. At the same time, the aim of the invention is to obtain an economical solution, which is important in the case of disposable products, such as absorbent products. For example, various elastic hydrogels that do not have the elastic modulus required for the intended use, and which, moreover, as a rule, lead to a significant increase in the cost of disposable products, are not included. Thus, the elastic means used in the invention provide cost-effectiveness (cost-effectiveness) as a result of simpler processing in the process, that is, adding a skin care product to an absorbent article in an easily controlled and reliable manner. This is due to the fact that in the technological process conventional elastic means are used, for which adapted equipment already exists, and because the skin care product is not released until the absorbent product is used.

Examples of conventional elastic means are those that are fixed as an elastic element for the legs and an elastic element for the waist and which usually exist in the form of threads, ribbons, films, laminate or the like. The elastic means in the absorbent articles described in the patent literature also exist in the form of side panels protruding up the elastic barriers, known as “standing assemblies”, belts, elastic edge elements, wings or front and rear main panels. In the case where elastic yarns or tapes are used, two or more elastic yarns or tapes are often arranged parallel to each other, and then they form components in the elastic means. Similar elastic yarns or tapes can also be located as lateral barrier elastic elements in the side barriers, which are usually located on the inside of the elastic element for the legs. Side barriers typically extend longitudinally along the absorbent body and have a longitudinal edge that is attached to the absorbent article and a second free edge designed to fit the wearer's body. In addition, elastic threads and tapes can be located in elastic systems, preferably around the perineal zone.

The elastic component can be made of natural rubber, polybutadiene, low crystallinity polyethylene, metallocene-catalyzed low crystallinity polyethylene, ethylene vinyl acetate copolymers, polyurethane, polyisopropene, butadiene and styrene copolymers and / or styrene block copolymers, in block alternating styrene-isoprene copolymer (SIS), alternating block styrene-butadiene copolymer (SBS) or styrene-ethylene / butadiene block copolymers with alternating using blocks and / or compounds of these polymers. These materials or material compounds are highly tensile and therefore suitable for the intended use. Additional suitable elastic materials are described in documents WO 2004/021949, WO 03/047488, in European patents EP 0521883, EP 0582596, document WO 97/20091 and in US patent 5539056.

In accordance with one preferred embodiment of an absorbent article according to the invention, the elastic agent does not substantially absorb water, that is, it does not absorb liquid, such as water or urine. The elastic agent preferably absorbs less than 15% of water or urine, preferably less than 10% of water or urine. On the other hand, the elastic agent can swell in a cream or lotion, such as oil, and thus absorb (“take”) the skin care agent into its mesh structure.

Thus, the term “substantially non-absorbing water” means a material that absorbs less than 20% of water or urine, preferably less than 15% of water or urine, and most preferably less than 10% of water or urine. The term “substantially non-absorbent water” is also intended to mean that the elastic agent should not absorb or retain urine in such an amount that adversely affects the functioning of the elastic agent as a storage location for skin care products after wetting has occurred. Thus, the elastic agent should accordingly have properties that allow it not to absorb water. However, at a purely practical level, it is impossible in principle to avoid the retention of one or more drops of liquid in the mesh structure of an elastic material, which is due to the action of capillary forces that occur in different cavities in the structure. However, this is undesirable and is minimized in accordance with the specified structure, which essentially does not absorb water.

Accordingly, the elastic agent is preferably substantially non-absorbent. That is, the absorption of moisture or fluid should not cause the skin care product to be squeezed out, for example, before use, so that the pores or openings in adjacent layers absorbing water will become clogged, and therefore this will prevent the penetration of the fluid into the absorbent body . The liquid should also “be able” to move past the elastic means during repeated wetting without absorbing and holding it in the elastic means. Thus, a fluid, such as sweat, urine or blood, should be able to pass into the absorbent body of the absorbent article freely and relatively naturally (without limitation). Due to the fact that the elastic means do not absorb water, a situation is prevented in which a liquid, such as excreted urine or sweat, is absorbed in the structure and causes the elastic agent to swell. Swelling will lead to the fact that already vulnerable areas will be subjected to even more severe rubbing and moisture. In addition, the absorption of water, as mentioned above, can cause the release of skin care products in less preferred situations, for example, during storage in a humid environment. Significant excretion of urine can also cause squeezing of the skin care product so that it will be removed from the area where it should act, that is, from the nearest adjacent skin. Another advantage of using a substantially non-water-absorbing elastic agent is that a larger amount of skin care agent may be used, since the release is independent of factors such as temperature or moisture sensitivity.

According to another preferred embodiment of the absorbent article according to the invention, the elastic means is formed by a material with a degree of recovery after loading of approximately 70-100%, preferably 80-100% and most preferably 90-100% immediately after the termination of loading.

The degree of recovery can be measured using a simple method in which: the length (L ₀ ) of the elastic means is measured, after which the elastic means is subjected to a load of 200 kPa (≈49.8 g / cm ² ) for a predetermined period of time. Then the length L _{1 is} measured immediately after the termination of loading. It is envisaged that in this case “directly” means after about one minute.

In one embodiment of an absorbent article in accordance with the invention, the elastic agent is a chemically crosslinked rubber, such as natural rubber or styrene butadiene rubber, or a physically crosslinked rubber, known as thermo (plastic) elastic, such as polyurethane rubber or thermoplastic olefins.

These compounds are examples of elastic agents commonly used in absorbent articles, which agents have high elasticity and good recovery ability.

Natural rubber and styrene butadiene rubber are examples of a morphologically homogeneous material in which covalent bonds provide for bonding together polymer chains and leave a free volume in the network. A skin care agent is introduced into these materials due to swelling of the polymer chains and / or filling of the free volume. The release of skin care products is ensured by stretching, when mechanical forces cause compression of the free volume. A thermoplastic elastic, such as polyurethane, is an example of a heterogeneous morphological structure with so-called hard and soft phases. The so-called solid phases are formed from chemical structures that can provide flexibility to the material. A skin care agent may be introduced into the so-called soft phases by swelling the polymer chain and / or filling the free volume. The skin care product is released when the soft phases are stretched during use of the absorbent article.

In accordance with one embodiment of the absorbent article, the elastic agent comprises up to 4 g, preferably up to 1 g, more preferably up to 0.5 g, and most preferably up to 0.1 g, skin care agent per 1 g of elastic agent in an unstretched state. A large interval border is particularly preferred when elastic means are used in the form of ultra-high absorbency, oil-absorbing agents made from polyolefins. Materials such as polypropylene or polyethylene are particularly suitable for administration of up to about 1 g of skin care product per 1 g of elastic product. However, it is preferable to use no more than 0.5 g, and most preferably, use no more than 0.1 g of skin care product per 1 g of elastic means to avoid that the elastic means will feel sticky. Thus, the invention is also characterized in that there is the possibility of introducing a limited amount of skin care products into an elastic means, but, nevertheless, such an amount that corresponds to the intended use. An adjustable amount of skin care product ensures that no excess amounts of skin care product are released during the first stretching and at the same time there is no increase in costs that might arise from using an excess of the often expensive skin care product . An excessive amount of skin care product is also associated with an increased risk of migration of said skin care product into the absorbent core of the absorbent article.

The skin care agent according to the invention is preferably an oil, lotion, ointment, rubbing agent, film-forming polymers, wax (paraffin) or herbal substances, or the like. In addition, the skin care product is suitable for use preferably as a preservative, soothing or therapeutic agent for treating dermatitis. In a further embodiment, the skin care agent is suitable for preventing or reducing rubbing and / or irritation. In a further embodiment, the skin care agent comprises hydrogen-regulating agents, antimicrobials, glucocorticoids, antiviral agents, probiotic microorganisms, enzyme inhibitor substances, substances that are active in varying degrees (substances with variable activity), for example, anti-inflammatory substances. As mentioned above, the fact is that when the user has sensitive skin and may or may already have a rash, irritation or pressure sores, it is important that the surface of the sensitive skin is not rubbed. Besides the fact that rubbing purely physically can cause damage to the surface of the skin, rubbing also makes the skin more susceptible to other external influences, such as exposure to feces, urine and the extreme conditions that result from this. This problem is solved using a skin care product containing one of the above components.

Brief Description of the Drawings

The invention will be described below in more detail with reference to the figures shown in the attached drawings, in which

1 shows a front view of a diaper panties as they look when they are connected.

Figure 2 shows a diaper in accordance with a further embodiment of the invention.

Figure 3 shows a cross section of the diaper of figure 2 along the line II-II.

Description of Embodiments

The diaper-panty 101 in figure 1 is shown in assembled form and without exposing it to tensile forces. The panty diaper includes outer panties 102, which can be divided into a front part 103, which during use is intended to be directed forward to the user, and to place it on top of the abdomen of the user, rear part 104, which during use is designed to in order to be directed back at the user, and to place it on top of the buttocks of the user, and the crotch part 105, which is located between the front part 103 and the back part 104 and is intended to be placed in the STI user during use.

The outer pants 102 shown in FIG. 1 comprise a first liquid permeable cover layer 106, a second liquid permeable cover layer 107 and an absorption body 108 located between the cover layers 106, 107. The liquid permeable cover layer 106 may be formed from any material suitable for this purpose, such as layers of nonwoven material, perforated plastic film, net material, tow (parallel fibers) or the like. It goes without saying that the covering layer 106 may also consist of a laminate of two or more layers of the same or different materials. The liquid impervious cover layer 107 may consist of a liquid impermeable plastic film, a layer of nonwoven material that has been coated with a liquid barrier material, or a layer of some other easily bendable material that is capable of counteracting liquid penetration. The liquid impervious cover layer 107 may also consist of a laminate. However, it may be preferable if the liquid-impermeable coating layer 107 has some breathability, that is, allows water vapor to pass through the layer 107.

The absorbent body 108 may be formed from one or more layers of absorbent material, such as fluff pulverized pulp, tissue paper, absorbent foam, etc. The absorbent body also often contains superabsorbents, that is, polymeric materials that can absorb the fluid released by the body in an amount several times greater than their own mass, with the formation of a hydrogel. Such superabsorbents usually exist in particulate form, but fibers, flakes, granules, foam and film can also be detected. In addition, the absorbent body 108 may also contain non-absorbent components, such as stiffening elements, forming elements, binders, etc.

When assembled, such as shown in FIG. 1, the respective lateral edges of the diaper are joined together to form a lateral tight joint (seam) 113. The front edge 109 and the rear edge 110 of the diaper pants 101 form a waist edge 111 that surrounds the waist opening 112 , and leg portions of the lateral edges form leg edges 114 that surround leg openings 115.

The elastic means are arranged in the form of an elastic element 116 for the legs around the holes 115 for the legs and in the form of an elastic element 117 for the waist around the hole 112 for the waist. Since the outer pants 102 are formed of a laminate of two or more layers, elastic means 116, 117 may be secured between two similar layers. Alternatively, the elastic means may be positioned so that they lie directly on the skin of the user during use. The leg elastic member 116 is located only on the crotch part 105 and the rear part 104, while the leg edge portion 114, which extends along the front part 103, is free of any particular leg elastic element, but the elastic element can properly extend the entire length around the leg openings 115. In addition, the outer panties 102 comprise an elastic waist member 117 around the waist opening 112 to ensure that the diaper pant 102 will “sit” firmly and comfortably in place and fit snugly around the user's waist.

The elastic means in the elastic element 116 for the legs and the elastic element 117 for the waist is in the form of elastic threads, ribbons or the like. When elastic yarns or tapes are used, two or more of them are often parallel to each other and form elastic components in an elastic means.

As can be seen in FIG. 1, the number of elastic components in the elastic element 116 for the legs is greater along the lateral edges of the absorbent “bag” in the crotch zone than along other parts of the edges 114 for the legs. This is an appropriate embodiment in order to facilitate the formation and bending of the absorbent body 108, since the flexural resistance in the absorbent body 108 is higher than in the more flexible surrounding parts of the panty diaper. This is also particularly preferable given that the risk of rubbing is particularly evident in the area, and thus several elastic means containing skin care products can preferably be placed in the area.

As mentioned earlier, FIG. 1 shows what a diaper-panty looks like before putting it on a user. All elastic means and components are not substantially stretched, in which case the skin care product is securely stored (held) until the diaper-panties are stretched during use. This means that before putting it on, the diaper-panty 101 has a slightly folded edge 111 for the waist, as well as an edge 114 for the legs, which are folded in the crotch part 105 and the back part 104.

Figure 2 shows a diaper, which for clarity is shown in a "stretched", relatively flat state. Thus, elastic means are also shown here in a stretched state. Figure 3 shows the cross section of the diaper along the line II-II. On the diaper 201 shown in FIG. 2, respectively, the panty diaper shown in FIG. 1, the front part 203, the rear part 204 and the narrower intermediate crotch portion 205 are shown. In addition, the diaper 1 has two longitudinal, laterally curved, lateral edges 214, leading edge 209, and trailing edge 210. The diaper of FIGS. 2 and 3 also comprises a first liquid permeable covering layer 206, a second liquid permeable covering layer 207, and an absorbent body 208 located between the covering layers 206, 207. Two covering layers 206, 207 have Olsha extension in the plane than the absorbent body 208, and in favor of the absorption body 108 around its entire periphery. The coating layers 206, 207 are connected to each other within the protruding parts, for example, by gluing or welding by heat or ultrasound.

In addition, the diaper 201 is provided with longitudinal elastic means 216 placed in a pre-stretched condition along the side edges 214 of the diaper. These elastic means 216 facilitate the bending of the diaper 201 in accordance with the shape of the user's body during use and at the same time form the elastic element of the diaper intended for the legs. Thus, the leg elastic member 216 serves to hold the lateral edges 214 of the diaper in close contact with the wearer's legs to prevent gaps between the diaper and the wearer's body during use, through which body fluid can flow out of the diaper.

The diaper 201 also has internal elastic barriers 218. The internal elastic barriers 218 are composed of double strips 220 of material. The strips 220 of the material respectively consist of a material that is able to resist the penetration of liquids, for example, of a hydrophobic non-woven material, a plastic film or a laminate of non-woven material and a plastic film, and at the same time they are permeable to a hydrophobic skin care product. Each strip 220 of material is attached to a liquid-permeable covering layer 206 along the fastening edge and comprises an elastic side barrier element 219 in the form of elastic components, in this case, elastic threads, at the opposite bent edge.

However, in accordance with the invention, it is provided that the strips 220 of the folded material do not substantially absorb urine, and therefore, the material, at least on the surface that is closest to the skin of the user, should be essentially a hydrophobic material for example, synthetic fibers, such as field-olefin fibers that have not been treated with a wetting agent. Those parts of the coating layers that surround the leg elastic member 216 can be treated accordingly. Naturally, both the elastic element 216 for the legs and the elastic element 219 of the side barriers can be fixed outside the strips 220 of the folded material or, respectively, on a liquid-permeable covering layer 206, so that they come into the most tight contact with the user's skin during use.

What is described above should not be construed as limiting the invention by using it only together with those absorbent articles described in these examples. It is envisaged that all kinds of absorbent articles should be included in which elastic means are used which are known to those skilled in the art of diapers, incontinence products, sanitary napkins, protective panties or the like. In addition, the invention should not be limited to the elastic means given by way of example above, but may also include elastic bands attached to absorbent articles, wings in sanitary napkins, etc.

"Diaper" dermatitis

Several factors combined lead to the development of diaper dermatitis. Wet skin makes the skin wear off more easily under the influence of friction and pressure. A high moisture content also means that irritating substances can penetrate the skin to a greater extent, as well as the fact that bacteria and fungi reproduce better. Clogging the skin and decomposing the urea in the urine to ammonia compounds leads to an increase in pH. An increased pH value leads to the fact that enzymes (lipases and proteases), which come from the intestines and from microorganisms in feces, create the possibility of skin destruction to a greater extent. A vicious circle can easily form in which various factors contribute to each other and reinforce each other.

The best way to prevent (prevent) dermatitis is to create conditions that counteract the factors that cause the formation and maintenance of the development of “diaper” dermatitis. Therefore, the goal should be to keep the skin as dry as possible, to frequently ventilate the skin and to change wet diapers. Mechanical shear forces should be minimized by selecting materials that are as smooth and soft as possible, and by reducing friction between the diaper and the skin. Applying a softening and protective lotion or cream to the skin makes it possible to strengthen the barrier against the penetration of irritating substances and enzymes. In more serious cases of dermatitis, there is the possibility that microorganisms will cause infection of the damaged skin, and treatment with more active drugs will be necessary. In these cases, ointments with cortisone and various antifungal and antibacterial agents are used.

Examples of skin care products intended for use in elastic products

A skin care product can be used to prevent, ameliorate, or treat dermatitis. The skin care product in its physical form can be formed by a solution, suspension, cream, lotion, ointment, paste, gel, foam, aerosol, etc. In the following description, a cream, lotion or ointment is preferably used, but it goes without saying that the other possible forms described above are also possible.

Skin care products can include lipids (fats, oils, waxes), solvents (including water), water-soluble substances, surfactants (emulsifiers, surfactants), viscosity adjusters that control the pH pH of the substance, preservatives, complexing agents (e.g. chelates), administration systems (e.g. liposomes, microcapsules, etc.), pigments, perfumes and active substances (also pharmaceuticals). Lipids are usually emulsified in water to produce what is known as an oil-in-water emulsion, or water is emulsified in a lipid phase to produce what is known as a water-in-oil emulsion.

Skin care products may include lipids, such as:

paraffins (alkanes) with 12-35 carbon atoms, for example, paraffin oil (mineral oil) or petrolatum (petroleum jelly).

Refined and / or hydrated triglycerides of animal or vegetable origin with preferred carbon chain lengths up to C-18 (18 carbon atoms) (e.g. milk fat, Cocous nocifera coconut oil, Elaeis guineeis palm kernel oil), animal or vegetable fat with C-18 unsaturated fatty acids (e.g. Rhus succesdanes vegetable wax, solid animal fat, Glycerin soya soybean oil, Arachais hypogaea peanut butter, Zea mays corn oil, Helanthus annus sunflower oil, Vitis vinifera grape oil, safflower oil Lo Carthamus tinctorius, Prunnus amygdalus dulcis sweet almond oil, Hazelnut oil Corylus americana, Juglans regia walnut oil, Olea europasa olive oil, Persea gratissima avocado oil, Sesame butter, Sesamumum tallum butter, indicamum indicumum, tallum butter, Elaesis guineensis palm oil, Oryza sativa rice oil, Canola rapeseed oil, Prunus armeniaca apricot kernel oil, Theobroma cao cocoa butter, Butyrospermum parkii shea butter, Triticum vulgare wheat oil, Bassia latifola, [fat] or plant origin with carbon chains with the number of carbon atoms older than 18 (for example, Cera alba beeswax, Shellac cera shellac, meadow limnanthes alba foam oil, Brassica capmestris rapeseed oil, Borago officinalis cucumber (essential) oil, Linum usitatissimum linseed oil, Ricinus communis ricin oil, veronia veronia galama oil jojoba oil Buxus chinensis, candle wax Euphorbia cera, ongokea Ongokea gore oil).

Fatty alcohols with straight or branched carbon chains with a carbon number of 12-32. For example, cetyl alcohol or stearyl alcohol.

Fatty acid esters with 12-32 carbon atoms. For example, methyl palmitate, methyl stearate, isopropyl myristate, isopropyl laurate, isopropyl palmitate, isopropyl stearate, octyl palmitate, octyl stearate or octyl laurate.

Polyalcohols. For example, sugarcane alcohols or polyglycerols.

Complex lipids. For example, phospholipids or sphingolipids (ceramides).

Waxes. Animal waxes such as beeswax or lanolin. Waxes of plant origin, for example, Carnauba or Candelilla. Waxes of mineral origin, for example, ozokerite or ceresin.

Polysiloxanes. Direct, branched or cyclic. For example, polydimethylsiloxane (dimethicone) or polydiethylsiloxane.

Skin care products may include emulsions, such as:

Emulsions of one or more fats with hydrophilic substances such as water, glycerin, polyethylene glycol, propylene glycol, butylene glycol, sorbitol, silicone glycol or the like, or mixtures thereof.

Skin care products may include substances that absorb irritating components in urine or excrement. For example, a clay mineral (bentonite, kaolin, monotmorillonite, etc.), compounds based on silicon dioxide (quartz, zeolites, water glass, etc.) or activated carbon. The substances can preferably be activated to give them greater absorption capacity through various treatments, for example, quaternary ammonium compounds.

Skin care products may include enzyme inhibitors. For example, salts of metals such as iron or zinc, ultrafine amounts of heavy metal ions such as copper or silver, ethylenediaminetetraacetic acid, soybean trypsin inhibitor, lima bean protease inhibitor, maize protease inhibitor, stearyl glycyrrhetinate, glycerol triacetate, betaine compounds, cholestyramine, p-guanidine benzoates.

Skin care products may include pH adjusting agents. For example, organic or inorganic acids, such as adipic acid, ascorbic acid, benzoic acid, citric acid, malic acid, tartaric acid, lactic acid, phosphoric acid or hydrochloric (hydrochloric) acid. Or buffers formed, for example, from the indicated acids with the corresponding salts. Polymeric acids, for example polyphosphoric acid or polyacrylic acid, may also be included.

Skin care products may also include probiotic microorganism additives, characterized in that they are antagonists to undesirable microorganisms, for example, pathogenic microorganisms from the urethra or pathogenic microorganisms that cause skin infections. Examples of probiotic microorganisms that can be used are single strains or mixtures of several strains of lactic acid bacteria taken from the species Lactobacillus acidophilus, Lactobacillus curvatus, Lactobacillus plantarum or Lactococis lactis. Skin care products may also contain prebiological substances such as glycogen.

Skin care products may also include more or less active substances, such as:

Anti-inflammatory drugs, for example, acetylsalicylic acid, allantoin, azulene, alfabisabolol (chamomile), flavonoids, glycyrrhizic acid, ichthammol (Inotyol®), tannins.

Astringents (vasoconstrictors), e.g. TiO, ZnO (and other zinc compounds), aluminum acetate solution, aluminum tartrate solution (and other aluminum compounds), ethanol or ethanol-based solutions.

Aloe tree (Aloe barbadensis), alpha hydroxy acids (citric acid, tartaric acid, lactic acid, malic acid, etc.), algae extract, ascorbic acid (vitamin C), compounds with vitamin A (retinol, retinal, tretinoin and isotretinoin), avocado sterols, betaine (trimethylglycine), ceramides, grape seed extract, similar essences fatty acids, flavonoids, phytosphingosine (phytosphingosine), phytosterols, hyaluronic acid, yeast extract, chitosan, milk protein (Lact) provitamin B), polysaccharides, mash new extract, tocopherol (vitamin E), ubiquinone (coenzyme Q10), urea.

Antimicrobial agents, for example, amorolfine, antibiotics, bacitracin (an antibiotic that inhibits bacterial cell wall synthesis), benzalkonium chloride, benzethonium chloride, cetrimide (cetavlon), fusidic acid, gentian violet (gentian violet, hexachlorofenzincofenine, for example, hexachlorofenzene chlorofen, , econazole, ketoconazole, clotrimazole, miconazole), chlorhexidine, nystatin, povidone iodine, terbinafine, triclosan, hydrogen peroxide.

Metals and their salts, for example, Ag, Cu, Zn, Mg, Na.

Antiviral agents, for example, acyclovir, imiquimod, podophyllotoxin, podophyllox, cidofovir, pencyclocir, vidarabin, idoxuridine, trifluridine, thromantadine, lamivudine.

Skin care products may also include glucocorticoids, preferably with low activity, such as hydrocortisone, or antipruritic drugs, such as antihistamines or local anesthetics (e.g. lidocaine).

Skin care products can also consist of ready-made mixtures of ointments, creams and skin lotions. For example, Necesse® lotion (ingredients: water, propylene glycol, liquid paraffin, octyl octanoate, urea, polyethylene glycol-8 distearate, stearet-2, stearet-21, betaine, lactic acid, tocopheryl acetate, dimethicone, tromethamine, methyl paraben, propyl paraben) Necesse® skin cream (ingredients: water, liquid paraffin, octyl stearate, sodium chloride, urea, glyceryl stearate, stearic acid, cetearyl alcohol, polyethylene glycol-30 stearate, tocopheryl acetate, tromethamine, dimethicone, methyl paraben, sorbic acid, propyl, dopyl, propylNecesse® cream (ingredients: petrolatum, glycerin, Arachais hypogaea peanut butter, triethyl citrate, tocopheryl acetate) or Necesse® zinc ointment (ingredients: petrolatum, Arachais hypogaea peanut butter, zinc oxide, retinyl palmitate, tocopherol). Necesse® products are marketed by SCA Hygiene Products, Gothenburg, Sweden.

Other examples of certain other skin care products and / or substances that can be used with the invention are described in part, inter alia, in the following documents: WO 96/16682 “Diaper having lotioned topsheet” (“Diaper having a top sheet with lotion) (in the name of Roe et al.), WO 96/16681 “Diaper having lotioned topsheet containing a polysiloxane emmolient” (in the name of Roe, Mackey), WO 97/05909 “Diaper having lotioned topsheet containing a liquid polyester emollient and immobilizing agent” (“Diaper having a top sheet with lotion, content liquid polyester emollient and mobility reducing agent ”) (in the name of Roe), WO 99/45973“ Disposable absorbing article having a skin care composition containing enzyme inhibitor ”(“ Disposable absorbent article having a skin care composition containing enzyme inhibitor ”) (in the name of Roe et al.), WO 99/45974“ Protease inhibitors in absorbent products ”(in the name of Rourke et al.), WO 99/45976“ Proton donating actives in absorbent articles ”(Proton donors, active substances in absorbent articles”) (in the name of McOsker et al.), DE 33 09530 C1 “Hygienische Absorptionsvorlage (in the name of Leitner et al.), DE 41 36540 A1 “Einwegwindeln” (in the name of Grunecker et al.), US 3489148 “Topsheet for disposable diapers” (in the name of Duncan et al. ), WO 00/64502 “Absorbent article having a lotionized bodyside liner” (addressed to Krzysik et al.), WO 00/64501 “Skin-friendly absorbent articles and compositions” (on name Krzysik et al.), WO 00/64500 “Absorbent article having a hydrophilic lotionized bodyside liner” (addressed to Krzysik et al.), WO 00/64503 “Skin-friendly absorbent articles and compositions” and compositions ”) (in the name of Krzysik et al.), WO 99/22684“ Web materials with two or more skin care composi tions disposed thereon and articles made therefrom ”(“ Roll materials with two or more skincare compositions placed on them and articles made from them ”) (in the name of Roe et al.).

It should be noted that the invention is not limited to the skin care products mentioned above, while these products are merely examples of what can be used, and that the invention is not limited to the above illustrative embodiments, but is applicable to other embodiments within the scope of claims of the attached claims.

Claims (16)

1. An absorbent article, such as a diaper, an incontinence article, a sanitary napkin intended for everyday use, a panty liner, and one or more parts (103, 203; 104, 204; 105, 205) of said article contain elastic means (116, 216; 117, 217; 119, 219) that hold the skin care product in their structure, characterized in that the skin care product is placed with the possibility of its allocation when the elastic tool (116, 216; 117 , 217; 119, 219) stretched during use of the absorbent from Elia, and elastic means (116, 216; 117, 217; 119, 219) absorbs at least 20% water or urine. 2. An absorbent article according to claim 1, wherein the elastic agent (116, 216; 117, 217; 119, 219) absorbs less than 15% of water or urine. 3. The absorbent article of claim 1, wherein the elastic agent (116, 216; 117, 217; 119, 219) absorbs less than 10% of water or urine. 4. An absorbent product according to any one of claims 1 to 3, in which the elastic means (116, 216; 117, 217; 119, 219) is formed by a material with a degree of recovery after loading of approximately 70-100% immediately after the termination of loading. 5. An absorbent product according to any one of claims 1 to 3, in which the elastic means (116, 216; 117, 217; 119, 219) is formed by a material with a degree of recovery after loading of approximately 80-100% immediately after the termination of loading. 6. An absorbent product according to any one of claims 1 to 3, in which the elastic means (116, 216; 117, 217; 119, 219) is formed by a material with a degree of recovery after loading of approximately 90-100% immediately after the termination of loading. 7. An absorbent product according to any one of claims 1 to 3, in which the elastic means is formed by an elastic element (117, 217) for the waist, an elastic element (116, 216) for the legs or an elastic element (119, 219) for the side barriers panels protruding elastic barriers, belts, elastic side elements, wings, as well as front and rear main panels. 8. An absorbent product according to any one of claims 1 to 3, in which the elastic agent (116, 216; 117, 217; 119, 219) is a natural rubber, thermoplastic elastic, such as polyurethane, polybutadiene, low crystallinity polyethylene, metallocene-catalyzed low crystallinity polyethylene, ethylene vinyl acetate copolymers, polyurethane, polyisopropene, butadiene-styrene copolymers and / or styrene-block copolymers, in particular a styrene-isoprene copolymer with alternating blocks, a styrene-butadiene copolymer with alternating iem blocks or block copolymers of styrene and ethylene / butadiene interleaved blocks and / or compounds of these polymers. 9. An absorbent product according to any one of claims 1 to 3, in which the elastic agent (116, 216; 117, 217; 119, 219) contains up to 4 g of skin care product per 1 g of elastic agent (116, 216; 117 , 217; 119, 219) in an unstretched state. 10. An absorbent product according to any one of claims 1 to 3, in which the elastic agent (116, 216; 117, 217; 119, 219) contains up to 1 g of skin care product per 1 g of elastic agent (116, 216; 117 , 217; 119, 219) in an unstretched state. 11. An absorbent product according to any one of claims 1 to 3, in which the elastic agent (116, 216; 117, 217; 119, 219) contains up to 0.5 g of skin care product per 1 g of elastic agent (116, 216 ; 117, 217; 119, 219) in unstretched condition. 12. An absorbent product according to any one of claims 1 to 3, in which the elastic agent (116, 216; 117, 217; 119, 219) contains up to 0.1 g of skin care product per 1 g of elastic agent (116, 216 ; 117, 217; 119, 219) in unstretched condition. 13. An absorbent product according to any one of claims 1 to 3, in which the skin care product is an oil, lotion, ointment, rubbing agent, film-forming polymers, wax or substances of plant origin. 14. An absorbent product according to any one of claims 1 to 3, in which the skin care product is suitable for use as a prophylactic, sedative or therapeutic agent for treating dermatitis. 15. An absorbent article according to any one of claims 1 to 3, in which the skin care product is suitable to prevent or reduce rubbing and / or irritation. 16. An absorbent product according to any one of claims 1 to 3, in which the skin care product contains pH-regulating substances, antimicrobials, glucocorticoids, antiviral agents, probiotic microorganisms, enzyme inhibitor substances, substances that are active in varying degrees for example, anti-inflammatory substances or substances of plant origin.

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