Adsorbing product that contains composition for taking care of skin

FIELD: medicine.

SUBSTANCE: the innovation deals with an adsorbing product that has got a composition for taking care of skin applied onto its part so, that it could be transferred to a consumer's skin. The suggested composition is solid at 21°C and contains, at least, three components chosen in accordance to their properties at melting and being distinct, particularly, due to the availability of an accelerator of crystallization. The composition in question could be transferred onto a consumer's skin due to a consumer's ordinary contact and movement and/or body heat.

EFFECT: higher efficiency.

17 cl, 1 ex

 

The technical FIELD TO WHICH the INVENTION RELATES.

The present invention relates to an absorbent product such as a diaper, a diaper panties, strip, used in case of incontinence, hygiene strip, strip to shorts, etc. More precisely the present invention relates to absorbent articles having a composition for skin care, caused at least part of the product, and this composition can be transferred to the skin of the user through regular contact and user movement and/or body heat.

BACKGROUND of INVENTION

In the manufacture of hygiene products such as diapers or sanitary napkins, use absorbent materials to absorb aqueous fluid. To prevent direct contact with the absorbent material when worn and to increase the comfort of wearing this material is coated with a thin, water-permeable, non-woven material. Nonwoven materials of this type are usually made from synthetic fibers, such as polyolefin or polyester fibers because these fibers can be produced at low cost, have good mechanical properties and are thermally stable.

In the sector of hygiene products nonwovens of this type all over the a widely provide with good skin lotions, to generally improve the portability and comfort when wearing. For example, in document DE 3309530 C1 described hygienic absorbent pad which is impregnated material for skin care, which consists of triglycerides and/or partial glycerides of fatty acids of coconut oil, having from 8 to 18 carbon atoms. In order for these drugs could also be transferred from a non-woven material on the skin without problems when wearing a mixture of triglycerides and partial glycerides document DE 3309530 chosen so that they have a point of elevation in the range of from 35 to 40°C.

Another approach to the transfer of substances for skin care skin while wearing hygienic products contained in document WO 96/16682. It describes the diaper, the inner covering of thin sheet material with a lotion that is solid or semi-solid at 20aboutAnd which is transferred to the skin of the media in the process of wearing. These lotions contain from 10 to 95% anhydrous softening means, which must be plastic or liquid at room temperature, and from 5 to 90% of the so-called latch, which must have a melting point component, at least 35°S, but preferably 40°C.

However, the main problem known lotions is their stability during storage. Important thing is that the lotions were in Ho the Osh state when the temperature of the skin, that is, at approximately 36-38°so that they could be transferred to the skin with a non-woven material without difficulty, that is, at these temperatures, the lotion should be sufficiently viscous to ensure that it is disconnected from the non-woven material and migrate to the skin. However, temperature-dependent process can lead to problems, if and hygienic products are stored at relatively high temperatures, for example greater than 30°C. In this case often notice that the lotion is non-woven materials. Therefore, the present invention is to create favourable for skin lotions that are designed for use on nonwovens for hygiene products, the sustainability of the lotions during storage should be provided, particularly at high temperatures.

In addition, it should be noted that non-woven material, for example, diapers for children should be permeable to liquids, and therefore, usually it is made so that it was hydrophilic. Therefore, further definitive treatment usually hydrophobic skin friendly lotion can lead to a reduction or to a significant decrease in movement of the fluid through the non-woven material in the absorbent material.

In addition, it is desirable that the lotions tolerated for the possibility of the spine completely with non-woven material on the skin of the carrier and, in this connection, it is possible, provide additional benefits, for example, were able to reduce the formation of odors or the development of bacteria, fungi and yeast. In principle, of course, must be provided with the simple application of lotions on non-woven materials and applying them by using known manufacturing methods to the maximum extent possible. It was found that such properties cannot be achieved in General, using the products according to the prior art.

The composition of the lotion is usually applied to the absorbent article or material intended for use in such a product in the molten state. This is usually performed at a temperature of from 35 to 100°C. After application of the molten lotion provides the opportunity for its cooling and solidification for the formation of a cured coating on the surface of the product or material to which it was applied. Can be used any suitable methods of application, such as coating via slotted head, coating, extrusion, coating using an engraved cylinder and the coating is applied by spraying.

One main problem when applying the compositions of lotions on absorbent product or material intended for use is isawanya in such products is that the technological process is often a very quick process, and the melted lotion does not harden sufficiently before the product or material to fold or roll into a roll, which leads to smearing lotion. The lotion can penetrate further, for example, through the top sheet of the absorbent articles to which it was applied, and move into the absorbent core, making it hydrophobic and less absorbent.

SUMMARY of the INVENTION

The objective of the present invention to provide absorbent articles containing lotion, which is a lotion aforementioned type and which makes it possible to overcome or at least reduce the problem of bleeding during the manufacture of the product and penetration through the material to which the lotion was applied.

It has been unexpectedly discovered that by combining the three components, selected on the basis of their properties during melting, it is possible to achieve the task.

Thus, in accordance with the present invention in the first embodiment, created absorbent products such as diapers, diaper pants, protective device which is used in case of incontinence in adults, sanitary pad, etc. containing permeable to liquids top sheet, cont is nicely for liquids back sheet and the absorbent body, enclosed between them, and the specified product is a composition for skin care, caused, at least in the area of his so that she could be transferred to the skin of the user, and the composition is solid at 21°and contains at least:

a) from 5 to 70 wt.% component, melting in the temperature range from 25 to 37°selected from the group of synthetic waxes, paraffins, esters of fatty acids, polyhydroxyethyl fatty acids, fatty alcohols, alkoxycarbonyl esters of fatty acids, alkoxycarbonyl fatty alcohols and mixtures of these compounds; and

b) from 5 to 70 wt.% component, the melting temperature of which at least 5°C above the melting point of component a)and component b) selected from the group of paraffins, polyhydroxyethyl fatty acids, fatty alcohols with carbon atoms With14-C22fatty acids with the number of carbon atoms With12-C22, alkoxycarbonyl derivatives of fatty alcohols and esters of fatty acids, and mixtures of these components, and compositions additionally contain as a component;

C) from 5 to 25 wt.% the crystallization accelerator selected from the group of partial glycerides, complex diesters of ethylene glycol and polymeric waxes, provided that the crystallization accelerator has a temperature has been melted down the I in the interval from 45 to 70° C;

while the compositions contain less than 5 wt.% water.

Compositions according to the invention necessarily contain three components differ, in particular, the presence of component C), the crystallization accelerator. In addition, it is important to choose the components a)to C) according to their properties during melting.

Preferably, component (b) had a melting point in the range from 40 to 60°C.

In accordance with one embodiment of the invention component a) is selected from mixtures of glycerides of fatty acids having from 8 to 18 carbon atoms, preferably from technical categories of mixtures of partial glycerides and/or mixtures of glycerides.

In accordance with an additional embodiment of the invention component b) selected from mixtures of glycerides of fatty acids having from 8 to 18 carbon atoms, preferably from technical categories of mixtures of partial glycerides and/or mixtures of glycerides.

Component a) and/or component (b) may, in one embodiment, each to contain a complex truefire glycerin or partial esters of fatty acids of coconut oil, and a mixture of in each case have a melting temperature in the stated interval.

Partial esters of glycerol with fatty acids with the number of carbon atoms With12-C21preferably monolaurate glycerol, in one embodiment, the wasp is estline are present as component C).

In yet another embodiment, polyvinylsilane ether is present as component C).

Preferably, the composition for skin care contains component a) in amounts from 10 to 60 wt.%, component b) in amounts from 10 to 60 wt.% and component C) in amounts of from 10 to 25 wt.%.

In addition, it is preferable that the composition for skin care had a melting point in the range of from 35 to 65°C, preferably from 35 to 50°and in particular from 35 to 45°C.

Composition for skin care can optionally contain silicone waxes in amounts from 1 to 6 wt.%, preferably from 1.5 to 5.5 wt.% and in particular from 2 to 5 wt.%.

Composition for skin care can optionally contain skin friendly and/or intended for skin care substances in quantities of from 0.1 to 10 wt.%, preferably from 1 to 8 wt.% and in particular 2 to 6 wt.%.

In accordance with one embodiment of the invention, the composition for skin care contains water in amounts from 0.5 to 3 wt.%, preferably from 0.5 to 2 wt.% and in particular from 0.5 to 1.5 wt.%.

In one embodiment, the composition for skin care contains from 50 to 60 wt.% the mixture of esters of glycerol and fatty acids of coconut oil, having a melting point from 30 to 33°With, as component a), from 10 to 20 m is S.% a linear, unsaturated fatty alcohol having a melting point of from 57 to 60aboutWith, as component b), from 15 to 20 parts polyvinylalcohol ether, having a melting point of from 45 to 48°With, as component C) and, possibly, from 2 to 5 wt.% silicone wax and 5 to 10 wt.% substances for skin care.

In one embodiment, the composition for skin care applied, at least part of the upper absorbent sheet products. Different amounts of a composition for skin care can be applied in different zones of the upper sheet. For example, the estimated area of the wetting of the material of the upper sheet may contain any number or contain a smaller amount of the composition for skin care compared to surrounding areas of the material of the upper sheet.

In yet another additional embodiment, the composition for skin care applied to any material and component products, such as elastic elements, belts, fiber, etc. that during use of the product is in contact with the skin of the user through, for example, permeable to liquids the top of the list.

In accordance with an additional aspect of the invention at least two different compositions for skin care applied in different areas of the product.

The invention includes all who is one characteristic combination, disclosed above and in the claims.

Description of the DRAWINGS

In Fig. 1 shows a perspective view of the absorbent product in the form of a diaper.

In Fig. 2 depicts a partial section view of the absorbent product.

DETAILED description of the INVENTION

The term "absorbent article" refers to articles which are placed near the skin of the user for the absorption and retention of body exudates, like urine, peculiar and menstrual discharge. The invention mainly relates to absorbent products disposable, which means products that are not intended for washing or return to its original state otherwise, or reused as absorbent articles after use. Examples of disposable absorbent products are hygienic products for women, such as sanitary napkins, pads for underwear and sanitary panties; diapers and briefs-diapers for children and adults suffering from incontinence; gaskets used in case of incontinence; insert into diapers, etc.

The drawing shows a variant implementation of the diaper 1 for a child or adult suffering from incontinence and diaper generally includes a bearing portion containing permeable to liquids top sheet 2, is impervious to the liquid the back sheet 3 and the absorbent body 4, enclosed between them. Permeable to liquids top sheet 2 may consist of a nonwoven material, such as nonwoven spunbond production method, a nonwoven fabric obtained by the aerodynamic method from the melt, non-woven material, obtained by searching the fibre mass, getoperationname, laying in the wet state, etc. Suitable nonwoven materials can be comprised of natural fibers, such as fibers of wood pulp or cotton fibers, synthetic fibers such as polyester, polyethylene, polypropylene, viscose, etc. or a mixture of natural and synthetic fibers. Furthermore, the material of the upper sheet may consist of fibers in bundles, which may be bonded to each other with a certain structure fasteners, such as, for example, disclosed in the document EP-A-1035818. Additional examples of materials of the upper sheet are porous foam, plastic film with holes, etc. Materials suitable as the material of the upper sheet, should be soft and not irritating the skin, and easily passing secreted by the body the fluid, such as urine or menstrual flow.

Impervious to liquids and back sheet 3 may consist of a thin plastic film such as polyethylene is whether polypropylene film, non-woven material covered by impervious to liquids material, a hydrophobic nonwoven material, which prevents the penetration of liquid, or laminates of plastic films and nonwoven materials. The material of the back sheet may be breathable so as to allow for steam to escape from the absorbent core while preventing the passage of fluids through the material of the back sheet.

The top sheet material 2 and the back sheet 3 are of somewhat greater length in the plane compared to the absorbent body 4 and pass over its edge. Layers 2 and 3 are connected to each other in the area of the protruding parts, for example, by gluing or heat sealing or ultrasonic welding. The top sheet and/or back sheet may additionally be attached to the absorbent core by any method known in this field, for example, using an adhesive, thermal bonding, etc. Absorbent core may also be attached to the top sheet and/or the back sheet.

The absorbent body 4 can be an absorbent body of any conventional type. Examples of common absorbent materials include Susanna powdered cellulose, layers of thin paper, polymers with a high absorption capacity (the so-called superabsorbents), absorber the existing foam, absorbent non-woven material or other Known connection spasennoy crushed pulp with superabsorbents in the absorbent body. Also it is well known the use of absorbent bodies containing layers of different materials with different properties from the viewpoint of the ability to absorb liquids, the ability to distribute the liquid holding capacity. It is well known to the person skilled in the art, and therefore it is not necessary to describe it in detail. The thin absorbent bodies, which are widely used, for example, diapers for children and protective devices used in case of incontinence, often contain compressed mixed or layered structure of spasennoy crushed pulp and superabsorbent. The size and absorptive capacity of the absorbent core may be varied to meet the requirements for various applications, for example, diapers, nappies and pads used in case of incontinence in adults, the diaper-shorts, strips to underwear, sanitary pads, etc.

The diaper shown in Fig. 1, is intended for embracing the lower part of the trunk like a pair of absorbent pants. It contains the front part 5, designed to be worn during use on the front part of the body on which isolates, the rear part 6, designed to be worn during use on the back of the user's body, and shorter perineal part 7, which is located between the front and rear parts and which is designed to be worn in the perineal part of the user between the legs. The front part 5 is made with a pair of reeds 8 of adhesive tape, or with means for the attachment of another type, such as a zipper-type fastener of the hooks and loops.

The diaper contains elestirilerini side flaps 10, forming holes for legs. The elasticity provided by the elastic elements 11 mounted between the top sheet and the back sheet in the area of the side flaps 10. The diaper shown in Fig. 1 and 2, further comprises an elastic barrier flaps 12, having a proximal edge 13 and the distal edge 14 and the elastic element 15, for placement distal edge 14 at a distance from the top of the sheet. These barrier valves 12 to form barriers against leakage and attached to the top sheet 2 at their proximal edges 13 near the side edges of the absorbent core 4, or in the zone of the side flaps 10, or above the absorbent core 4.

The diaper may further comprise sastifactory belt element in the form of elastic elements, passing in the transverse direction of the product at his waist.

In an additional embodiment, the diaper contains part of the belt is attached to the rear part of the diaper and intended for fastening them together around the waist of the carrier. Fastening means on the front part of the diaper is then affixed to the outer side of the belt for fastening of the diaper together to produce a given shape, such cowards. An example of a diaper with belt shown in document WO 01/00129.

However, it should be understood that the diaper described above and shown in the drawing, represents only one non-limiting example and that the present invention is not limited to them but can be used in any type of absorbent product as defined above.

The absorbent product according to the present invention is a composition for skin care, caused at least in part so that she could be transferred to the skin of the user through regular contact, user movement and/or body temperature. Being transferred to the skin, the composition for skin care provide desirable skin care or protective benefits, such as reduced redness, decreased erythema, reduction of diaper dermatitis and skin irritation.

Several factors in the interaction leading to the development of diaper dermatitis or op is Elasti. Moist skin causes irritation and pressure easier cause abrasion of the skin. High moisture content also means that the penetration into the skin irritating substances may increase and that bacteria and fungi can successfully reproduce. The blockage of the skin and the decomposition of urea in urine to ammonia increases the pH level. A higher pH leads to the fact that enzymes (lipases and proteases), coming from the gut and from microorganisms in faeces, can destroy the skin to a greater extent. Can easily form a vicious circle, in which various factors contribute to and reinforce each other.

Dermatitis is best prevented by creating conditions that counteract those factors that lead to the initiation and maintenance of flow "diaper" dermatitis. Thus, efforts should be made to maintain the skin dry as possible, often to ventilate the skin and change wet diapers. Mechanical shearing forces should be minimized by selecting materials that are smooth and soft, and the abrasion between the diaper and the skin should be minimized. In addition, by nourishing emollient and protective lotion or cream can strengthen the barrier against the penetration of irritants and enzymes. In Bo is her severe cases of dermatitis, there is the possibility of infection by microorganisms damaged skin, and require treatment with more powerful drugs. In this case, use the ointment cortisone and various antifungal and bactericidal agents.

Composition for skin care can be applied to any part of the product, which during use is in contact with the skin of the user, either directly or through a permeable top sheet. This includes the top sheet 2 or part elestirilerini side flaps 10, barrier valves, belts wear with belt, elastic elements in the side flaps, barrier valves and/or pelvic area. Composition for skin care can also be deposited on the fibers contained in the nonwoven material, and the fiber bundles in the material of bundles of fibers.

Composition for skin care according to the invention is solid at 21°and contains at least:

a) from 5 to 70 wt.% component, melting in the temperature range from 25 to 37°selected from the group of synthetic waxes, paraffins, esters of fatty acids, polyhydroxyethyl fatty acids, fatty alcohols, alkoxycarbonyl esters of fatty acids, alkoxycarbonyl fatty alcohols and mixtures of these compounds, and

b) from 5 to 70 wt.% component, the melting temperature of which at least 5°With higher pace atory melting component (a), and component b) selected from the group of paraffins, polyhydroxyethyl fatty acids, fatty alcohols with carbon atoms With14-C22fatty acids with the number of carbon atoms With12-C22, alkoxycarbonyl derivatives of fatty alcohols and esters of fatty acids, and mixtures of these components, and compositions additionally contain as component

C) from 5 to 25 wt.% the crystallization accelerator selected from the group of partial glycerides, complex diesters of ethylene glycol and polymeric waxes, provided that the crystallization accelerator has a melting point in the range from 45 to 70°C

while the compositions contain less than 5 wt.% water.

Melting is defined as the transition of a substance from solid to liquid state of aggregation by supplying thermal energy, which due to the increased kinetic energy of the particles, the amplitude of the oscillations becomes so large that the lattice structure is destroyed. The melting temperature is defined as the temperature at which liquid and solid phases of a substance are in thermodynamic equilibrium at a pressure usually 1013 kPa. However, in reality, the term "melting point" is used in practice for the most part only to the point of transition from a solid state to a liquid state, and not for the fact the temperature, identical to it, in which there is a transition in the opposite direction. The amount of heat absorbed in this process is called the heat of fusion or enthalpy of melting. Typically, the melting point increases with increasing pressure, although there are exceptions. For many pure substances the melting temperature can be determined with great accuracy, because in this case, the temperature remains constant during a certain time interval during the heat. For amorphous glassy substances no specific melting temperature, because in this case there is no crystal lattices. A similar phenomenon is observed at the observation of the behavior of fats, ointments, creams or materials for suppositories during melting; in such cases, you can use the solidification temperature of the so-called point of raising and dropping temperature to obtain the characteristics.

The impact of the crystallization accelerator should be understood as meaning that he has a well-defined melting temperature, which should be above the melting temperature of the liquid to semi-solid component a), but must be below the temperature at which is applied the lotion. The Association of the component (a), which melts at relatively low temperatures, with component b), which is melted at higher temperatures, and the simultaneous addition of the accelerator (C) crystallization allows you to get the lotions, which, first, are stable during storage even at high temperatures and at the same time can be transferred from the product to the skin of the user when wearing the product.

Component a) may be selected from a large number of compounds known to the person skilled in the art, thus it is essential that in this case, the melting point should be in the range from 25 to not more than 37°C. first, for this purpose you can use certain paraffins, but also esters of fatty acids and, in particular, fatty alcohols. Suitable waxes are preferably semi-solid waxes, such as semi-solid paraffin, preferably vaseline. Suitable fatty alcohols include, for example, dodecanol or ricinoleates alcohol given to name one representative of unsaturated fatty alcohols. Additional suitable substance selected from the class of synthetic waxes, for example, copolymers of polyethylene and maleic anhydride. For the present invention is particularly appropriate use of glycerides, in this case, preferably mixtures of partial glycerides and triglycerides, which should have given melting temperature from 25 to 37°C. Particular preference here is taut mixtures of glycerides of fatty acids, having from 8 to 18 carbon atoms.

Glycerides are complex mono-, di - and/or truefire of glycerol with fatty acids, namely, for example, Caproic acid, Caprylic acid, 2-ethylhexanoic acid, capric acid, lauric acid, isotridecanol acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, ezoterikovou acid, oleic acid, elaidic acid, petroselinic acid, linoleic acid, linolenic acid, oleostearin acid, arachnid acid, gadolinio acid, beganovi acid and erucic acid and technical mixtures thereof classes (categories). They correspond to the formula (I),

(I)

in which R represents the radical COR'in which R' represents a branched or unbranched, saturated or unsaturated alkyl radical having from 6 to 22 carbon atoms, and/or independently, represents hydrogen. Typical examples are the monoglyceride of laurinovoj acid, diglyceride laurinovoj acid, monoglyceride of a fatty acid of coconut oil, a triglyceride of fatty acid of coconut oil, a monoglyceride of palmitic acid, a triglyceride of palmitic acid, monoglyceride of stearic acid, diglyceride steari the OIC acid, the monoglyceride ezoterikovou acid, diglyceride ezoterikovou acid, monoglyceride of oleic acid, diglyceride oleic acid, tall oil fatty monoglyceride acid, diglyceride tall oil fatty acid, monoglyceride of beganovi acid, diglyceride beganovi acid, erucic acid monoglyceride, diglyceride erucic acid and technical mixtures thereof categories, which may also contain small amounts of triglyceride as auxiliary components of the manufacturing process.

Suitable as component a) are, in particular, the mixture of partial glycerides and triglycerides of coconut oil, which are sold by the applicant under the trade name Novata®-B. Novata®-B has a melting temperature (in accordance with DGF C-IV 3a) from 33 to 36°and an acid number of 0.3 (in accordance with DGF C-V2). The saponification number is 225-240 (in accordance with DGF C-V3). Molecular weight is 710. Additional suitable mixture of component (a) is Novata®-299 (melting point 34° (C) from the applicant.

Component (b) should have a melting temperature that is at least 5°C above the melting temperature of the component (a)used in the present compositions. Particular preference is given to compounds from the group of fatty alcohols with the number of atoms angle of the ode With 14-22fatty acids with the number of carbon atoms C12-22and alkoxysilane derivatives and fatty alcohols and esters. However, paraffin waxes having specified properties during melting, are also suitable. Also in this case, a mixture of glycerides or fatty acid fraction With8-18in particular, are suitable as component b) for the successful implementation of assigned technical tasks. Particularly suitable as component a)and component (b) are complex truefire glycerol and partial esters of fatty acids of coconut oil. They represent a fraction With8-C18while depending on the choice of the lengths of chain glycerides or the degree of esterification can create mixtures with varying melting points. Basically there are a mixture of esters of lauric acid (C14) and myristic acid (C16).

Used component b) with a higher melting point is preferably Novata®-D from the applicant. This substance is a mixture of triglycerides and partial glycerides of fatty acids of coconut oil, but with a different temperature intervals melting. Novata®-D has a melting temperature (in accordance with DGF C-IV 3a) from 40 to 42°and an acid number of 0.3 (in accordance with DG C-V2). The saponification number is 215-230 (in accordance with DGF C-V3).

The use of component (C), which represents the crystallization accelerator, is essential for the present invention. This substance with a melting point, which, firstly, is at least 45°and, secondly, the temperature range for the melting of this component, however, should be as narrow as possible and, therefore, should not be more than 4.5°C, preferably 2,5°and less.

In this case, particularly suitable as component C) are selected partial esters of glycerol with fatty acids with the number of carbon atoms With12-C21preferably glycerol monostearate having a temperature range of the melting point 58-60°in accordance with DGF C-IV 3A, or monolaurate glycerol with a temperature interval of melting 56-60aboutIn accordance with DGF C-IV 3A. Additional suitable monoglycerides are monocaprate glycerol (melting point 53° (C) or monistat glycerol (with a melting point of 70.5°).

If you use an accelerator (C) crystallization according to the invention, get lotions that can be applied to the product or material intended for use in it, such as non-woven fabric top sheet, the elastic element is or the like, no problem, because their melting temperature above the melting point of component a) with a lower melting point, but is not so high that it would have reached the temperature applying lotion product or material. The temperature of application is preferably 60-80°With, however, you should adapt the temperature of application depending on the crystallization accelerator.

When selecting components, (a)the first important factor is their melting point. In addition, it should be considered that at least three different substances present in the compositions according to the invention in accordance with the definition of components a)-C). Component (C) preferably has a melting point in the range from 30 to 35aboutC. Particularly preferably, if the component (C) has a melting temperature which is less than the melting point of component b), preferably less than 5-10°With, in particular 10-15°C.

The composition preferably have a melting point in the range of from 35 to 65°With, in particular from 35 to 50°and preferably from 35 to 45°C. the behavior of the compositions during melting is essential for use, and therefore, preferably, the compositions according to the invention has two temperature range of the melt is to be placed, which of course differ from each other, as can be preferably established by means of measurements on the basis of thin-layer chromatography. The enthalpy of melting for the compositions preferably comprise from 80 to 160 j/g, in particular from 90 to 140 j/g and especially preferably from 100 to 125 j/, in Addition, it eliminates the joint use of liquid or semi-solid compounds, similar to those disclosed in the aforementioned document WO 96/16682, as well as in document WO 96/16681.

Compositions according to the invention are anhydrous, i.e. they contain water in a total amount corresponding to 5 wt.%, preferably from 0.5 to 3 wt.% and in particular from 0.1 to 2.0 wt.%. Accordingly, preferably, you should choose anhydrous components (a)-(C) to avoid expensive operations drying during manufacture.

In the compositions according to the invention, in a preferred embodiment, component a) is present in quantities of from 10 to 60 wt.%, component b) is present in quantities of from 10 to 60 wt.%, and component (C) is present in quantities of from 10 to 30 wt.%.

In addition, the compositions according to the invention can also contain additional conventional ingredients, for example, silicone waxes or polysiloxane, in quantities from 1 to 6 wt.%, preferably from 1.5 to 5.5 wt.% and in particular from 2 to 5 wt.%. Polysilk the Ana are known polymeric compounds, which contains the following structure as a monomer unit:

Here, R" and R"', independently of one another represent hydrogen or alkyl, cycloalkyl, aryl or alkanniny radical. The siloxanes of this type preferably have a viscosity at 37aboutWith in the range of from 5 to 5000 MPa c.

In addition, compositions according to the invention can contain skin friendly or intended for skin care substances, preferably in quantities of from 0.1 to 10 wt.%, in particular from 1 to 8 wt.% and very particularly preferably from 2 to 6 wt.%.

The ingredients of this type can, for example, to represent bisabolol, allantoin and panthenol. You can also use vitamins, preferably vitamin E and Pro-vitamins, and protein hydrolysates. Also suitable are plant extracts, preferably of chamomile, aloe, lime blossom, horse chestnut, green tea, oak bark, nettle, hops, burdock, horsetail, hawthorn, almond, spruce needles, almond wood, juniper, coconut, apricot, lemon, wheat, kiwi, melon, orange, grapefruit, sage, rosemary, birch, mallow, core meadow, thyme, Melissa, harrow, mother-and-stepmother, marshmallow, ginseng and ginger root. However, in addition, so is e can be other substances for skin care. Those compositions for skin care, which can be called here, is, in particular, chitosan and zinc oxide or ricinoleate zinc.

Especially preferred composition according to the present invention contains from 50 to 60 wt.% the mixture of esters of glycerol and fatty acids of coconut oil, having a melting point from 30 to 33°With, as component a), from 10 to 20 wt.% linear, unsaturated fatty alcohol having a melting point of from 57 to 60°as component b), from 15 to 20 parts polyvinylalcohol ether, having a melting point of from 45 to 48°With, as component C) and, possibly, from 2 to 5 wt.% silicone waxes and may, from 5 to 10 wt.% substances for skin care, preferably of avocado oil.

The composition is prepared, as a rule, the traditional way, by blending the individual liquid components, i.e. at elevated temperatures, preferably at 40-80°and in particular at 50-70°C. a Specific sequence during mixing of the components is not required. The composition was then cooled to room temperature (21°).

Since the composition for skin care according to the invention quickly hardens, it provides several advantages in the process of manufacturing absorbent articles, which occurs with a very high speed, and the property named the several hundred products per minute or in the case of manufacturing a non-woven sheet materials, [speed] several hundred meters per minute. Due to the rapid solidification of the composition, which is applied in the molten state, will harden sufficiently before the product or material is folded or rolled-up, so avoid smearing the molten composition or at least reduce this bleeding. In addition, reduce or even avoid the danger that the composition can penetrate, for example, through the top sheet of absorbent articles to which it was applied, and move into the absorbent core, making it hydrophobic and less absorbent. In addition, a larger amount of the composition may be applied on the product or material in this process, because the process of solidification is faster.

Composition for skin care preferably applied, for example, on the material of the upper sheet or any other material or component absorbent product before the material or component will be attached to other components of the product. Alternatively, it can be applied to the absorbent product after connecting together the materials and components contained therein. It can be applied using any suitable method is, known in this field, such as spraying, application by printing, coating using a slit nozzle, etc. It can be applied continuously or in separate zones, in the form of gradients or images.

Composition for skin care can be applied in different quantities in different parts of the material of the upper sheet. For example, the estimated area of wetting of the upper sheet, which is a area, which during use of the product is located in the perineal area, which will be produced by the body fluid may not contain any amount or to contain relatively fewer compositions for skin care, compared with zones of material of the upper sheet located outside the zone of wetting.

In addition, two or more compositions for skin care can be applied in different areas of the product. Thus, for example, the composition for the skin, specially adapted to reduce redness caused by pressure, may be used in areas of elastic elements in the side flaps, barrier valves and/or pelvic area, while another composition for the skin, specially adapted to reduce diaper rash caused by skin irritation from urine and/or faeces, can be applied to the material of the upper sheet in those areas, to the which will be moistened by secretions of the body. Thus, by using the compositions for skin care, described here, provides more freedom in choosing how and where the composition may be applied to the product or material intended for incorporation into an absorbent product.

Examples

The following compositions 1 and 2 according to the invention were prepared and their melting properties was investigated. For this purpose, in each case carried out the measurement by differential scanning calorimetry. Heating rate/cooling was 10 K/min and -1 K/min

Composition 1:

a) 58 wt.% a mixture of partial glycerides and triglycerides of fatty acids of coconut oil, melting point 34°C;

b) 15 wt.% stearyl alcohol, melting point 56-58°C;

(C) 20 wt.% polyvinylalcohol ether, melting point 45°C;

d) 2 wt.% silicone wax.

The melting temperature of the composition was 49°C. the Heat of fusion was 112 j/g

Composition 2:

a) 55 wt.% a mixture of partial glycerides and triglycerides of fatty acids of coconut oil, melting point 34°C;

b) 15 wt.% monolaurate glycerin, melting point 63°C;

(C) 20 wt.% polyvinylalcohol ether, melting point 45°C;

d) 5 wt.% silicone wax.

The temperature of prawle the Oia was 46° C. the Heat of fusion was 82 j/g

The compositions described above can be applied to the nonwoven materials without problems and is suitable for the manufacture of nonwovens for hygiene products.

To determine the characteristics of the cooling lotions according to the present invention, three of the lotion was prepared and heated to 70°C. Lotions 1 and 2 (corresponding to the above compositions 1 and 2) contain inhibitors of crystallization according to the invention. Lotion 3 (corresponding to the above composition 1) is free from this connection.

Hot lotions put (0.5 ml each) on an inclined glass plate (angle 35°). Then measured the distance, while the drop will not stop. For lotions 1 and 2 was measured distance of approximately 15 cm, lotion without connection) according to paragraph 1 of the claims required a distance of 21 cm to "stopped".

1. Absorbent products such as diapers, diaper pants, protective device which is used in case of incontinence in adults, sanitary pad, containing permeable to liquids, the upper sheet (2), impervious to liquids and back sheet (3) and an absorbent body (4)enclosed between them, and the product has the composition for skin care, caused, at least in the area that it is, so she could be transferred to the skin of the user, with the specified composition is solid at 21°and contains at least (a) from 5 to 70 wt.% component, melting in the temperature range from 25 to 37°selected from the group of synthetic waxes, paraffins, esters of fatty acids, polyhydroxyethyl fatty acids, fatty alcohols, alkoxycarbonyl esters of fatty acids, alkoxycarbonyl fatty alcohols and mixtures of these compounds, and (b) from 5 to 70 wt.% component, the melting temperature of which at least 5°C above the melting point of component a)and component b) selected from the group of paraffins, polyhydroxyethyl fatty acids, fatty alcohols with carbon atoms With14-C22fatty acids with the number of carbon atoms With12-C22, alkoxycarbonyl derivatives of fatty alcohols and esters of fatty acids, and mixtures of these components, characterized in that the composition additionally contains, as component (C) from 5 to 25 wt.% the crystallization accelerator selected from the group of partial glycerides, complex diesters of ethylene glycol and polymeric waxes, provided that the crystallization accelerator has a melting point in the range from 45 to 70°C

while the compositions contain less than 5 wt.% water.

2. The absorbent product according to claim 1, trichomania fact, which component b) has a melting point in the range from 40 to 60°C

3. The absorbent product according to claim 1 or 2, characterized in that the component

a) is selected from mixtures of glycerides of fatty acids having from 8 to 18 carbon atoms, preferably from technical categories of mixtures of partial glycerides and/or mixtures of glycerides.

4. The absorbent product according to claim 1 or 2, characterized in that the component

b) selected from mixtures of glycerides of fatty acids having from 8 to 18 carbon atoms, preferably from technical categories of mixtures of partial glycerides and/or mixtures of glycerides.

5. The absorbent product according to claim 1, characterized in that component a) and/or component b) each contains a complex truefire glycerin or partial esters of fatty acids of coconut oil, and a mixture of in each case have a melting temperature in the stated interval.

6. The absorbent product according to claim 1, characterized in that the partial esters of glycerol with fatty acids with [the number of carbon atoms] C12-C21preferably monolaurate glycerol is present as component C).

7. The absorbent product according to claim 1, characterized in that polyvinylsilane ether is present as component C).

8. The absorbent product according to claim 1, characterized in that the composition for skin care contains a component (a) kolichestvo from 10 to 60 wt.%, component b) in amounts from 10 to 60 wt.% and component C) in amounts of from 10 to 25 wt.%.

9. The absorbent product according to claim 1, characterized in that the composition for skin care has a melting point in the range of from 35 to 65°C, preferably from 35 to 50°and in particular from 35 to 45°C.

10. The absorbent product according to claim 1, characterized in that the composition for skin care additionally contains silicone waxes in amounts from 1 to 6 wt.%, preferably from 1.5 to 5.5 wt.% and in particular from 2 to 5 wt.%.

11. The absorbent product according to claim 1, characterized in that the composition for skin care contains skin friendly and/or intended for skin care substances in quantities of from 0.1 to 10 wt.%, preferably from 1 to 8 wt.% and in particular 2 to 6 wt.%.

12. The absorbent product according to claim 1, characterized in that the composition for skin care contains water in amounts from 0.5 to 3 wt.%, preferably from 0.5 to 2 wt.% and in particular from 0.5 to 1.5 wt.%.

13. The absorbent product according to claim 1, characterized in that the composition for skin care contains from 50 to 60 wt.% the mixture of esters of glycerol and fatty acids of coconut oil, having a melting point from 30 to 33°With, as component a), from 10 to 20 wt.% linear, unsaturated fatty alcohol having a melting point of from 57 to 60°With, the quality is as component b), from 15 to 20 parts polyvinylalcohol ether, having a melting point of from 45 to 48°With, as component C) and, possibly, from 2 to 5 wt.% silicone wax and 5 to 10 wt.% substances for skin care.

14. The absorbent product according to claim 1, characterized in that the composition for skin care applied, at least part of the upper sheet (2) of the product.

15. The absorbent product according to 14, characterized in that different amounts of the composition for skin care applied in different zones of the upper sheet.

16. The absorbent product according to item 15, wherein the estimated area of the wetting of the material of the upper sheet contains no amount of, or contains fewer compositions for skin care, compared with other zones of the material of the upper sheet.

17. The absorbent product according to claim 1, characterized in that the composition for skin care applied to any material and component products, such as elastic elements, belts, fibre, which during use of the product is in contact with the skin of the user through, for example, permeable to liquids the top of the list.

18. The absorbent product according to claim 1, characterized in that at least two different compositions for skin care applied in different areas of the product.



 

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The invention relates to biocompatible fototienda gel based on crosslinked hyaluronic acid, which has specific physical properties, the methods of its production and its applications as biomedical materials

FIELD: medicine.

SUBSTANCE: the present innovation deals with applying hygienic material indicated for cleaning and taking care of skin and urogenital area at simultaneous delivery of lactic acid bacteria produced by it and, thus, reconstructing and maintaining healthy microbial microflora in the above-mentioned areas. The hygienic material in question is characterized by the fact that it is impregnated with composition that includes lipid-suspended lactic acid-producing bacterium/bacteria and, not obligatory, additional components. Encapsulation of lactic acid bacterium in lipid provides moisture-free medium that increases the survival of lactic acid bacteria that keeps the bacterium in the form that provides the chance for growth after being delivered onto skin. Hygienic materials that include lactic acid-producing bacteria could be kept for the prolonged period of time, moreover, this type of material improves the efficiency of lactic acid-producing bacteria transfer onto skin and urogenital area. Except this, lipid provides the function of cleaning so that skin could be cleaned simultaneously with the delivery of lactic acid bacteria.

EFFECT: higher efficiency.

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Plaster // 2283637

FIELD: medicine.

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55 cl, 4 tbl

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1 ex

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The invention relates to medicine, namely to means for closing and treatment of wounds of various etiologies, and allows you to accelerate the healing process, to protect against the occurrence of infection and the appearance of scars

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FIELD: manufacture of disposable soakers-pants.

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24 cl, 7 dwg, 10 tbl, 8 ex

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36 cl, 28 dwg, 3 tbl

FIELD: processes for producing of absorbing articles.

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EFFECT: increased efficiency and intensified process owing to increased speed of tape.

12 cl, 5 dwg

FIELD: production of absorbing articles formed as napkin-trunks.

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19 cl, 19 dwg

FIELD: medicine.

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EFFECT: higher efficiency.

9 cl, 4 dwg

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35 cl, 16 dwg

FIELD: design of adsorptive products such as a hygienic filler, with a stiffening element, which gives three-dimensional shape to the product during usage.

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44 cl, 14 dwg

FIELD: design of adsorptive products, such as a hygienic filler, with stiffening element, which gives three-dimensional shape to the product during usage.

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25 cl, 15 dwg

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19 cl, 2 dwg, 1 tbl

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20 cl, 7 dwg, 3 tbl, 7 ex

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FIELD: medicine.

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EFFECT: valuable medicinal properties of bandage.

7 ex

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