Absorbent articles comprising skin care compositions derived from renewable resources

Abstract

1. An absorbent article comprising a substantially water-free skin care composition comprising about 40% to about 90% by weight of at least one emollient derived from renewable resources and about 10% to about 60% by weight of at least one fixative derived from renewable resources, wherein the skin care composition has a melt fraction based on DSC at 50°C of about 10% to about 50%.

Description

[Technical Field]

[0001] FIELD OF THE DISCLOSURE The present disclosure relates generally to skin care compositions derived from renewable resources and absorbent articles containing same. [Background technology]

[0002] Some currently commercially available absorbent articles, such as disposable diapers, contain skin care compositions on the surface that contacts the wearer. A portion of the skin care composition is transferred to the wearer's skin while the article is being worn. The skin care composition provides a barrier against excess moisture and / or irritants and / or delivers skin care actives to the wearer's skin. Most currently commercially available skin care compositions used with absorbent articles contain materials derived from non-renewable resources, such as petroleum. Typically, ingredients in skin care compositions (e.g., emollients) are made from mineral oil or petrolatum, both of which are derived from petroleum-based resources. Many consumers express aversion to purchasing products derived from petroleum-based resources.

[0003] Therefore, although there may be skin care compositions containing small amounts of petroleum-derived materials, the performance of such skin care compositions may not be what consumers expect and / or desire.Skin care compositions must be stable and effective, and simply formulating a skin care composition with renewable resources does not guarantee acceptable performance.Specifically, the skin care composition on the absorbent article must be able to transfer to the wearer during use, but must not be so easily transferable that the skin care composition transfers within the absorbent article before use.For example, absorbent articles may be exposed to extreme temperatures during packaging and transportation to retail stores, so the skin care composition must be stable under such extreme conditions and not so fluid that it transfers throughout the absorbent article before use. Summary of the Invention [Problem to be solved by the invention]

[0004] It is therefore desirable to provide a skin care composition for use in connection with absorbent articles that is derived in part or entirely from renewable resources. It is therefore desirable to provide a functional skin care composition for absorbent articles that reduces or eliminates the use of petroleum-based materials. Many skin care compositions containing emollients derived from renewable resources (non-petroleum-based), such as plant-based, can either be too fluid at high temperatures (e.g., above about 40°C) and migrate within the article, impairing their absorbent properties, or too non-fluid at ambient temperatures (20°C) or skin temperatures (35°C-37°C), resulting in insufficient migration to the wearer's skin and inability to provide adequate skin barrier function. It is therefore further desirable to provide a renewable, e.g., plant-based, skin care composition for absorbent articles that allows adequate migration to the skin during wear while minimizing migration within the article at the higher temperatures associated with shipping and storage of the article. [Means for solving the problem]

[0005] 1. An absorbent article comprising: a wearer-facing surface; and a substantially water-free skin care composition disposed on the wearer-facing surface, the skin care composition comprising from about 40% to about 90% by weight of at least one emollient derived from renewable resources; and from about 10% to about 60% by weight of at least one fixative derived from renewable resources, wherein the skin care composition has a melt fraction based on DSC at 50°C of from about 10% to about 50%. [Brief explanation of the drawings]

[0006] [Figure 1] 1 is a plan view of an absorbent article according to one aspect of the present invention. [Figure 2] FIG. 1 is a top view of an absorbent article including a topsheet, a backsheet, and an absorbent core to which a skin care composition has been applied.

[0007] While this specification concludes with claims particularly pointing out and distinctly claiming the subject matter regarded as the invention, it is believed that the invention will be better understood from the following description read in conjunction with the accompanying drawings. Figure 1 may be simplified by omitting selected elements for the purpose of more clearly showing other elements. The omission of such elements in some figures does not necessarily indicate the presence or absence of the particular element in any of the illustrative embodiments unless expressly depicted in the corresponding written description. None of the drawings are necessarily to scale. DETAILED DESCRIPTION OF THE INVENTION

[0008] I. Definition As used herein, the following terms shall have the meanings specified below.

[0009] "Absorbent article" means a device that absorbs and / or contains liquid. Wearable absorbent articles are absorbent articles that are placed against or in close proximity to the body of a wearer to absorb and contain various bodily exudates. Non-limiting examples of wearable absorbent articles include diapers, pant or pull-on diapers, training pants, sanitary napkins, tampons, panty liners, incontinence devices, and the like. Additional absorbent articles include wipes and cleaning products.

[0010] The term "biobased content" refers to the amount of carbon in a material that is derived from renewable resources as a percentage of the mass of total organic carbon in the material, as determined by ASTM D6866-10, Method B.

[0011] "Location" refers to an element being placed in a particular place or position.

[0012] "Disposable" refers to an absorbent article that is not intended to be laundered or otherwise restored or reused as an absorbent article after a single use.

[0013] "Emollients" refer to materials that moisturize or protect against irritation, soften, soothe, supple, coat, soothe, moisturize, protect, and / or cleanse the skin.

[0014] "Petrochemical" refers to organic compounds derived from petroleum, natural gas, or coal.

[0015] "Petroleum" refers to crude oil and its constituent paraffinic, cycloparaffinic, and aromatic hydrocarbons. Crude oil may be obtained from tar sands, bitumen fields, and oil shale.

[0016] "Plant-derived" refers to ingredients in a skin care composition that are obtained directly from a plant or that are derived from one or more processing operations applied to the plant or its parts, which may include, but are not limited to, refining, heating, fractionation, hydrolysis, esterification, concentration, fermentation, distillation, extraction, and infusion.

[0017] "Relevant environmental messages" refer to messages that communicate the benefits or advantages of skin care compositions and / or absorbent articles formed from renewable resources, such as being more environmentally friendly, less dependent on petroleum, being derived from renewable resources, etc.

[0018] "Renewable resources" refer to natural resources that can be regenerated within a 100-year time frame. These resources can be regenerated naturally or through agricultural techniques. Renewable resources include plants, animals, fish, bacteria, fungi, and forest products. They can be naturally occurring, hybridized, or genetically engineered organisms. Natural resources that take more than 100 years to produce, such as crude oil, coal, and peat, are not considered renewable resources.

[0019] II. Skin Care Composition Skin Care Compositions: The composition may be intended to maintain and / or improve the appearance and / or condition of the skin in areas that come into contact with the absorbent article. In certain embodiments, the skin care composition may provide protection to prevent overhydration, exposure to or penetration of substances contained in bodily exudates, a non-occlusive function (e.g., a relatively liquid-impermeable but vapor-permeable barrier), a chafing-minimizing function to reduce skin irritation in areas where the absorbent article comes into contact with the wearer's skin, or contain ingredients that directly or indirectly provide a skin care benefit. For example, a direct benefit may relate to reduced redness or anti-inflammatory effects. An indirect benefit may relate to the elimination or reduction of skin irritants in urine or feces, or the reduction of overhydration of the skin. The skin care composition may contain emollients or other skin care actives that protect or improve skin conditions from chafing, overhydration, or itching. Furthermore, the skin care composition may have a smooth, shiny, and non-abrasive feel to minimize chafing on sensitive or damaged skin with chronic conditions such as chafing, dryness, or rashes.

[0020] The skin care compositions of the present disclosure may include a substantially anhydrous oily carrier that includes an emollient and a fixative.

[0021] A. Emollients In skin care compositions designed to provide skin appearance and / or skin protection benefits, a useful ingredient in these skin care compositions is one or more emollients. In certain embodiments, these emollients have either a plastic or liquid consistency at room temperature, i.e., 20°C.

[0022] Suitable emollients may be derived from renewable resources. For example, suitable emollients may be plant-derived emollients derived from cultivated or non-cultivated plants. Preferably, these plants are sustainably harvested and managed. Alternatively, in certain embodiments, the emollient may include petrolatum formed from renewable resources, such as natural gas sources. Suitable petrolatum formed from renewable resources is described in PCT Publication WO 2008 / 128232, including methods for its manufacture. Biomass-derived charcoal can also be used to produce synthesis gas (i.e., CO + H2), from which hydrocarbons such as ethane and propane can be prepared (Fischer-Tropsch process).

[0023] Other suitable emollients can include fatty acid ester-type emollients, alkyl ethoxylate-type emollients, fatty alcohol-type emollients, and combinations thereof. Examples of each of these types of emollients (as well as others) are described in U.S. Patent No. 6,570,054.

[0024] Other suitable emollients include natural oils or fats, particularly of vegetable or animal origin, or natural oil or fat derivatives. Non-limiting examples include shea butter, argan oil, oleic canola oil (Brassica campestris, B. napus, B. rapa, e.g., high oleic canola oil, extra high oleic canola oil, or partially hydrogenated canola oil, characterized by an oleic acid content of greater than 70%), marula kernel oil (Sclerocarya birre), palm oil (Olea guinea), palm olein, palm stearin, palm superolein, pecan oil, pumpkin seed oil, oleic safflower oil (e.g., high oleic safflower oil, characterized by an oleic acid content of greater than about 30% and an omega-6 fatty acid content of less than about 50%), sesame oil (Sesame indicum, S. oreintale), soybean oil (soybean (Glycine max), e.g., partially hydrogenated high oleic soybean, low linoleic soybean oil), oleic sunflower oil (Helianthus annus, characterized by an oleic acid content of more than about 40%, e.g., medium oleic sunflower oil or high oleic sunflower oil), apricot oil, babassu oil, castor oil, palm oil, cod liver oil, hydrogenated corn oil, hydrogenated cottonseed oil, hazelnut oil, jojoba oil, macadamia oil, meadowfoam seed oil, mink oil, moringa oil (maringa oil), marula oil, mortierella oil, palm kernel oil, hydrogenated peanut oil, hydrogenated rapeseed oil, rosehip oil, hydrogenated safflower oil, hydrogenated soybean oil, hydrogenated sunflower oil, hydrogenated walnut oil, hydrogenated wheat germ oil, or hydrogenated derivatives thereof.Other non-limiting examples of suitable fat and oil skin care active options herein include butter, C12-C18 acid triglycerides, caprylic / capric / lauric triglyceride, caprylic / capric / linoleic triglyceride, caprylic / capric / stearic triglyceride, caprylic / capric triglyceride, cocoa butter, C10-C18 triglycerides, egg oil, epoxidized soybean oil, glyceryl triacetyl hydroxystearate, glyceryl triacetylricinoate, glycosphingolipids, hydrogenated castor oil, hydrogenated castor oil Laurate, hydrogenated coconut oil, hydrogenated C12-C18 triglycerides, hydrogenated fish oil, hydrogenated lard, hydrogenated menhaden oil, hydrogenated mink oil, hydrogenated crude orange oil, hydrogenated shark liver oil, hydrogenated tallow, hydrogenated vegetable oil, lanolin and lanolin derivatives, lanolin alcohol, lard, lauric / palmitic / oleic triglyceride, lesquerella oil, maleated soybean oil, cow's foot oil, oleic / linoleic triglyceride, oleostearin, olive peel oil, omental lipids, pengawar jambi oil Examples of suitable emollients include djambi oil, pentadesma butter, phospholipids, shea butter, tallow, tribehenin, tricaprin, tricaprylin, triheptanoin, trihydroxymethoxystearin, trihydroxystearin, triisononanoin, triisostearin, trilaurin, trilinolein, trilinolenin, trimyristin, trioctanoin, triolein, tripalmitin, tricebacin, tristearin, triundecanoin, and the like, and mixtures thereof. Oleic canola oil, palm oil, sesame oil, high oleic safflower oil, high oleic soybean oil, medium oleic sunflower oil, and high oleic sunflower oil are oils derived from common plant breeding and may also be derived from non-genetically modified organisms (non-GMO). Additional such emollients are further described in U.S. Patent Application Serial No. 12 / 974,674.

[0025] In certain embodiments, the emollient can further comprise a blend of oils, including those listed above, as well as additional oil materials. Suitable additional emollients include acai berry oil, almond oil, avocado oil, beech oil, Brazil nut oil, shepherd's purse oil (Brassicaceae, e.g., shepherd's purse, Gold of Pleasure, linseed oil, etc.), camellia seed oil, canola oil, carrot seed oil, cashew nut oil, castor oil, cherry kernel oil, chia oil, corn oil, cottonseed oil, hydrogenated cottonseed oil, evening primrose oil, hazelnut oil, grapeseed oil, hemp oil, hickory nut oil, jojoba oil, kukui oil, lanolin, olive oil (Olea europaea), macadamia oil, moringa oil, and the like. oil, meadowfoam oil, neem oil, palm kernel oil, olive oil, passion flower oil (passiflora incarnata), peanut oil, peach kernel oil, pistachio nut oil, rapeseed oil, rice bran oil, rosehip oil, safflower oil, sorghum oil, soybean oil, sunflower seed oil, tall oil, vegetable oil, vegetable oil, vegetable squalane, walnut oil, wheat germ oil, and mixtures thereof. The oil material of the present invention may be selected from the group consisting of: safflower oil, canola oil oleate, evening primrose oil, marula kernel oil, palm oil, palm olein, palm stearin, palm superolein, passionflower seed oil, pecan oil, pumpkin seed oil, safflower oil oleate, sesame oil, soybean oil, sunflower oil oleate, vegetable oil, and mixtures thereof.

[0026] In certain embodiments, certain antioxidants can be added to certain emollients or skin care compositions to further enhance the stability of the emollient. In one embodiment, the emollient comprises from about 0.005% to about 1%, from about 0.01% to about 0.5%, or from about 0.02% to about 0.2% antioxidant by weight of the emollient. In one embodiment, the skin care composition comprises from about 0.0005% to about 1%, from about 0.001% to about 0.75%, or from about 0.002% to about 0.5% antioxidant by weight of the skin care composition. Non-limiting examples of suitable antioxidants include α-tocopherol, β-tocopherol, γ-tocopherol, δ-tocopherol, tocotrienols, rosemary, sesamol, sesamolin, sesamin, catechin, mixed tocopherols, citric acid, malic acid, grape seed, green tea, mushroom extract, pine bark extract, licorice root, phytic acid, cranberry, pumpkin seed, wheat germ oil, and mixtures thereof.

[0027] Certain emollients may favor the transfer of skin care compositions from the wearer-contacting surface of the absorbent article to the skin. This may be due to the size of the crystal structure resulting from a particular combination of emollients and immobilizing agents. Emollients and immobilizing agents with similar carbon chain structures may pack tightly together to form finer crystals, while emollients and immobilizing agents with less similar carbon chain structures, such as a mixture of linear and branched carbon chains and / or a mixture of linear and aromatic chains, may pack loosely together to form more amorphous crystals. Without being bound by theory, finer crystals, which give the crystals more edges or shapes, may be transferred more easily to the wearer's skin than amorphous crystals by interacting more easily with the skin through frictional forces.

[0028] The amount of one or more emollients in the skin care composition can be from about 30% to about 90% by weight of the skin care composition, hi some embodiments, the skin care composition can comprise from about 40% to about 90%, from about 40% to about 80%, from about 50% to about 80%, from about 60% to about 80%, from about 60% to about 70%, or from about 70% to about 85% by weight of one or more emollients.

[0029] B. Fixing agent Another component of the skin care composition is one or more agents that can fix the composition in the desired location in or on the treated article.Some embodiments of the composition have a plastic or liquid consistency at 20°C, so that they tend to flow or move even when subjected to moderate shear or surface energy forces (for example, capillary forces).When applied to the surface of an absorbent article that contacts the wearer or other locations, the skin care composition, especially in a molten state, does not inherently remain in or on the treated area.Instead, the skin care composition tends to migrate and flow to undesired areas of the article, which tends to adversely affect the absorbency of the article.

[0030] Specifically, if the skin care composition migrates to the inside of the absorbent article, it may cause an undesirable effect on the absorbency of the absorbent article.It also means that more skin care composition must be applied to the article to obtain the desired skin protection and conditioning effect.Increasing the added level of skin care composition not only increases the cost, but also worsens the undesirable effect on the absorbency of the core of the article and the undesirable migration of the skin care composition during processing / conversion of the treated article.

[0031] One or more fixatives counteract this tendency of skin care compositions (without fixatives) by keeping the composition primarily localized on the surface or area of ​​the article to which the skin care composition is applied. This is believed to be due, in part, to the fact that the fixative increases the melting point and / or viscosity of the skin care composition. The fixative can be miscible with the emollient (or solubilized in or dispersed within the emollient with an appropriate emulsifier), thereby trapping the skin care composition on the surface of the absorbent article that contacts the wearer or on the surface within the area to which the skin care composition is applied.

[0032] In addition to being miscible with (or solubilized in) the emollient, the fixative can have a melting profile that provides the skin care composition with a solid or semi-solid at room temperature. In this regard, certain embodiments of the fixative can have a melting point of at least about 35°C, since the fixative itself does not tend to migrate or flow. In other particular embodiments, the fixative can have a melting point of at least about 40°C. In other particular embodiments, the fixative can have a melting point of at least about 60°C. In yet other particular embodiments, the fixative can have a melting point in the range of about 50°C to about 150°C.

[0033] Suitable immobilizing agents may be derived from renewable resources. Suitable immobilizing agents include C 14 ~C 60 Fatty alcohol, C 14 ~C 60 Fatty acids, C having an average degree of ethoxylation ranging from about 2 to about 110 14 ~C 60 The immobilizing agent may be selected from the group consisting of fatty alcohol ethoxylates, waxes, and mixtures thereof. "Average degree of ethoxylation" refers to the number of ethoxylate units. In certain embodiments, the immobilizing agent is a C selected from the group consisting of cetyl alcohol, stearyl alcohol, behenyl alcohol, and mixtures thereof. 16 ~C 22The immobilizing agent may include a fatty alcohol. Other suitable immobilizing agents, alone or in combination with the above-mentioned immobilizing agents, include waxes such as carnauba, ozokerite, beeswax, candelilla, paraffin, ceresin, esparto, ouricuri, rezowax, isoparaffin, and other known mined and mineral waxes. The high melting points of these materials can help immobilize the composition on the desired surface or location on the article. In addition, microcrystalline wax is an effective immobilizing agent. Examples of these and other immobilizing agents are described in U.S. Patent No. 6,570,054.

[0034] Additional suitable fixatives may be selected from the group consisting of beeswax, rice bran wax, sunflower wax, stearyl alcohol, jojoba esters, hydrogenated castor oil, and combinations thereof. Preferably, suitable fixatives are derived from renewable resources, and in some embodiments, are plant-derived materials.

[0035] The amount of fixative in the skin care composition can be from about 10% to about 60% by weight of the skin care composition. In some embodiments, the skin care composition may comprise from about 10% to about 50%, from about 15% to about 50%, from about 15% to about 40%, from about 20% to about 50%, from about 20% to about 40%, from about 25% to about 50%, from about 25% to about 45%, from about 30% to about 45%, or from about 30% to about 40% by weight of the skin care composition of one or more fixatives.

[0036] C. Surfactants In certain embodiments, surfactants may be added to such skin care compositions as described herein. Such surfactants can be mixed with other components of the skin care composition to form a blended mixture (e.g., hydrophilic surfactants). Because the skin of the person using the disposable absorbent product to which the composition is applied may be sensitive, these surfactants should also be relatively gentle and non-irritating to the skin. Typically, these hydrophilic surfactants are non-ionic, not only to be non-irritating to the skin, but also to avoid other undesirable effects on any other structures within the treated article. For example, a reduction in the tensile strength, adhesive bond strength, etc. of the tissue laminate.

[0037] Suitable nonionic surfactants can be substantially non-migratory after the skin care composition is applied to the absorbent article, and typically have an HLB value ranging from about 4 to about 20, and from about 7 to about 20. To be non-migratory, such nonionic surfactants typically have a melting temperature (e.g., at least about 30°C) higher than temperatures commonly encountered during storage, transportation, sale, and use of disposable absorbent products. In this regard, these nonionic surfactants preferably have a melting point similar to that of the aforementioned immobilizing agents. Examples of such suitable surfactants are described in U.S. Patent No. 6,570,054.

[0038] D. Rheological Agents Rheological agents can be added to skin care compositions to suspend the ingredients of the skin care composition and maintain a stable suspension. Carriers (e.g., emollients and immobilizing agents) without rheological agents exhibit typical Newtonian fluid properties. That is, dispersed particles frequently aggregate and separate from the carrier upon standing. This drawback can lead to precipitation and bridging effects during processing, preventing the skin care composition from being consistently applied to a substrate surface. The rheology of the composition in the melt phase can be modified by an effective amount of rheological agent(s) to behave like a plastic or pseudoplastic fluid. The resulting skin care composition is a stable solution or suspension with finely dispersed skin care ingredients therein. The stabilized composition is substantially free of aggregation, stratification, and / or sedimentation. Therefore, the molten composition can flow easily through processing equipment and be consistently applied to a substrate surface. It has been recognized that both the elastic modulus and apparent viscosity of a composition are factors that affect the processability of a skin care composition.

[0039] Specifically, the addition of a rheological agent may, in certain embodiments, increase the elastic modulus of the skin care composition to at least about 5 dynes / cm when measured at 77°C under an oscillation frequency of 10 rad / sec and a shear strain of 0.2%. 2 (See test methods disclosed herein.) In other specific embodiments, the skin care composition may have a viscosity of from about 5 to about 25,000 dynes / cm. 2 , about 10 to about 10,000 dynes / cm 2 , and about 100 to about 5,000 dynes / cm 2 Examples of such rheological agents are described in U.S. Patent No. 6,570,054.

[0040] The rheological properties (e.g., modulus, viscosity) of the skin care compositions in molten form are measured using a viscometer (available from TA Instruments, New Castle, Del., under model number CSL 100) in oscillatory mode. Measurements are performed using a cone-plate measuring system with a diameter of 40 mm and a gap of 60 micrometers. Measurements begin after a waiting period of approximately 100 seconds. Measurements are also performed at two temperatures: 77°C and 40°C. The modulus, measured at a frequency of 10 rad / s and a strain of 0.2%, is used to characterize the compositions. That is, all moduli disclosed and / or claimed herein are measured at the above operating conditions.

[0041] Certain embodiments of the skin care composition may be solid, or more often semi-solid, at room temperature, i.e., 20°C. Being solid or semi-solid at room temperature, the skin care composition does not tend to flow or migrate to undesired locations on the article to a significant extent, thus avoiding significant interference with the absorbency of the article. This means that less skin care composition is needed to impart the desired appearance, protection, or conditioning benefits. In certain embodiments, the skin care composition of the present disclosure has a viscosity of about 1.0 x 10 at about 20°C. 6 Centipoise ~ approx. 1.0 x 10 8 Centipoise, in certain embodiments, about 5.0 x 10 6 Centipoise ~ approx. 5.0 x 10 7 Centipoise, in certain embodiments, about 7.0 x 10 6 Centipoise ~ approx. 1.0 x 10 7 The material may have a zero shear viscosity of centipoise. Generally, the value of "zero shear viscosity" can be obtained by extrapolating a plot of viscosity versus shear rate to a shear rate of zero. However, for plastic or pseudoplastic fluids that exhibit yield behavior at low shear rates, the extrapolation method often does not completely and accurately describe the material. Alternatively, the "zero shear viscosity" can be approximated by the viscosity measured at very low shear rates. As used herein, the term "zero shear viscosity" refers to the viscosity at very low shear rates (e.g., 1.0 s -1hereinafter) and a temperature of about 20°C, measured by a cone and plate viscometer (available from TA Instruments, New Castle, Del., as model number CSL100).

[0042] E. Optional Skin Care Actives In certain embodiments, the skin care composition may contain at least one skin care active. Such skin care active may be a solid that is insoluble or partially soluble in the substantially anhydrous oily carrier. The skin care active may be incorporated into the skin care composition directly or as a pre-dispersion with stirring.

[0043] Such skin care actives may include, but are not limited to, proton donating agents, protease and / or enzyme inhibitors, antibacterial agents, moisturizers (glycerin, rubitol), vitamins and their derivatives (e.g., vitamins A, D, E, and K), skin soothing and healing agents such as aloe vera or other ingredients from herbal, botanical, or mineral sources, sunscreens, preservatives, anti-acne agents, antioxidants, chelating and sequestrant agents, essential oils, skin sensates, multifunctional agents such as zinc oxide, and mixtures thereof. Examples of such skin care actives are described in U.S. Patent No. 6,570,054 and U.S. Patent Application No. 12 / 974,674.

[0044] III. Melting rate One important characteristic of suitable skin care compositions derived from renewable resources and / or plants is the percentage of the composition that is in a molten (i.e., liquid) state at a particular elevated temperature, which can be measured via DSC analysis (differential scanning calorimetry) as described herein. Absorbent articles may be exposed to extreme temperatures prior to use, for example, when the article is packaged, transported, and / or stored. The percentage of the skin care composition that is liquid when the article is at 50°C can be an important indicator of a critical aspect of its behavior, for example. If the liquid percentage is too high, the components of the skin care composition may migrate throughout the absorbent article due to their high fluidity, which may adversely affect urinary management indicators. If the liquid percentage is too low, the skin care composition may not transfer sufficiently to the wearer's skin, defeating the purpose of having a skin care composition. Accordingly, the inventors have discovered that only when the melting percentage value measured by DSC at 50°C is between about 10% and about 50%, can the functional benefits of a natural skin care composition be utilized without the potentially associated negative aspects described herein. In some embodiments, the melting ratio based on DSC at 50°C may be about 20% to about 45%, about 30% to about 45%, about 40% to about 45%, or about 35% to about 50%. In some embodiments, the melting ratio based on DSC at 50°C may be about 10% to 15%, about 10% to 20%, about 15% to 25%, about 20% to about 25%, or about 20% to about 35%.

[0045] Furthermore, the effective melting ratio by DSC may vary depending on which renewable resource-derived emollients and fixatives are used. For example, the use of a fixative with a melting point above about 80°C may require a lower percentage of fixative in the skin care composition formulation to achieve the desired properties than a fixative with a lower melting point, such as in the 60-70°C range. For example, it has been found that a skin care composition containing rice bran wax as a fixative with a melting point of about 80-85°C requires only about 10-20% rice bran wax in the formulation. Alternatively, when stearyl alcohol, with a melting point of about 60°C, is used as the fixative, about 40-50% stearyl alcohol is required in the formulation. It is important that the resulting skin care composition formulation have a melting ratio based on DSC at 50°C within the range defined herein, regardless of the fixative selected.

[0046] This is shown in Table 1 below for various skin care compositions containing liquid (at 20°C) vegetable oils (castor oil, hydrogenated castor oil, and shea butter) (Sonneborn RR-81) as plant-derived emollients. As noted above, for fixatives with lower melting points, a higher percentage of the skin care composition formulation must contain the fixative to achieve a DSC-based melting percentage at 50°C within the desired range. The converse is also true; that is, for skin care compositions containing fixatives with higher melting points, a relatively smaller percentage of the composition must contain the fixative. For example (from Table 1 below), a composition such as Example 1 containing only beeswax (having a melting point in the range of approximately 60-65°C) requires a higher percentage of fixative to achieve a DSC-based melting percentage of less than 50% at 50°C than would a formulation containing only rice bran wax (having a melting point range of approximately 79-85°C) as the fixative. It is also possible to create a mixture of various fixatives with different melting points to achieve the desired percentage of melting based on DSC at 50° C. Note also that Example 4 shows that the composition containing the fixative with the lowest melting point also requires the highest percentage of fixative to achieve the target range of DSC percentage of melting based on 50° C. Based on this relationship, one of skill in the art can define alternative skin care compositions having the desired percentage of melting based on DSC at 50° C. using any combination of fixatives and emollients of the present disclosure without undue experimentation.

[0047] [Table 1]

[0048] IV. Hardness Characteristics of Skin Care Compositions The hardness of the skin care compositions of the present disclosure can be important for at least two reasons. First, the softer the formulation, the more likely it is to transfer, which is undesirable. Second, softer skin care compositions tend to feel greasy / oily, which is also less desirable. Generally, skin care compositions having a needle penetration hardness of about 200 to about 365 millimeters have a creamy to slightly greasy feel and are less smooth (depending on additives). Skin care compositions having a needle penetration hardness value of about 5 to about 200 millimeters have a silky to creamy feel and are very smooth (depending on additives). Particular embodiments of the needle penetration hardness of the skin care composition can be about 5 to about 365 millimeters, about 10 to about 300 millimeters, about 20 to about 200 millimeters, or about 40 to about 120 millimeters. Skin care composition compositions having a needle penetration hardness of about 5 and 365 millimeters can be measured using ASTM method D 1321.

[0049] V. Oxidative Properties of Skin Care Compositions Unsaturated fatty acids are unstable and prone to oxidation. Oxidation can be accelerated by several factors, including temperature, light, air, oxygen, moisture, and metals. See, for example, Belitz HD, Grosch W, and Schieberle P, Lipids In Food Chemistry 3rd ed. Springer-Verlag, Heidelberg, 2004, p. 157-242. In fact, common causes of product manufacturing can promote instability. For example, melting and mixing ingredients to form a skin care composition may require high temperatures (above the melting point of the ingredients of the skin care composition, for example, up to above 70°C). In order to melt the semi-solid skin care composition and maintain its homogeneity, it is common to heat the tank into which the skin care composition is applied to high temperatures (for example, above 60°C, preferably above 70°C) while stirring. Furthermore, the skin care composition may remain in the tank for a considerable period of time (for example, more than 24 hours). Another cause of instability may be the shelf storage of the final product. It is not uncommon for products to remain on shelves (in stores or at home) for at least a year, and depending on geographic location, storage temperatures may exceed 40°C. Another cause of instability may result from skin care compositions being water-based or glycol-based. Collectively, these factors can lead to oxidation and the generation of reactive oxygen free radicals or active oxygen. This can lead to product degradation, such as discoloration (i.e., yellowing) and / or rancidity. Upon contact with skin, active oxygen can damage the skin's barrier function.

[0050] A common measure for monitoring oxidative stability is the evolution of hydroperoxides over time (peroxide value or PV). Oxidative stability can also be expressed by the time required to obtain secondary oxidation products when a sample is aerated at elevated temperatures. A suitable measure of oxidative stability is called the Oil Stability Index (referred to herein as "OSI"). The OSI of an oil material can be measured according to the American Oil Chemical Society Oil Stability Index Method (AOCS Official Method Cd 12b-92).

[0051] In certain embodiments, oil materials used in the skin care compositions described herein may be selected to have an OSI of at least about 10 hours, in certain embodiments at least about 14 hours, and in certain embodiments at least about 18 hours.

[0052] VI. Validation of Skin Care Compositions Derived from Renewable Resources The preferred verification technique is: 14 C analysis. A small amount of carbon dioxide in the atmosphere is radioactive. 14 Carbon dioxide (C) is produced when neutrons produced by ultraviolet light strike nitrogen, causing it to lose a proton and form carbon with a molecular weight of 14, which is immediately oxidized to carbon dioxide. This radioactive isotope is a small but measurable portion of atmospheric carbon. Carbon dioxide in the atmosphere is cycled by green plants to make organic molecules during photosynthesis. This cycle is completed when the green plants or other living organisms metabolize the organic molecules, thereby producing carbon dioxide, which is then released back into the atmosphere. Virtually all life on Earth depends on this green plant production of organic molecules for growth and reproduction. Therefore, the carbon dioxide present in the atmosphere 14 C is part of all living organisms and their biological products. In contrast, fossil fuel carbon does not have the signature radiocarbon ratio of atmospheric carbon dioxide.

[0053] Standard test methods can be used to assess the renewable carbon content of materials. Radiocarbon and isotope ratio mass spectrometry can be used to determine the biobased content of materials. ASTM International, formerly known as the American Society for Testing and Materials, has established a standard method for assessing the biobased content of materials. This ASTM method is referred to as ASTM D6866-10.

[0054] The application of ASTM D6866-10 to derive "biobased content" is built on the same concepts as radiocarbon dating, but does not involve the use of an age equation. The analysis involves comparing the amount of organic radiocarbon ( 14 This is done by deriving the ratio of the amount of carbon in the atmosphere (carbon dioxide) and the amount of carbon in the atmosphere (carbon dioxide). This ratio is reported as a percentage with the unit "pMC" (percent modern carbon).

[0055] The modern reference standard used in radiocarbon dating is the NIST (National Institute of Standards and Technology) standard, which uses a known radiocarbon content roughly equivalent to 1950 AD. 1950 AD was chosen because it represents the era before thermonuclear weapon testing, when each explosion introduced large amounts of excess radiocarbon (called "test carbon") into the atmosphere. The 1950 AD standard corresponds to 100 pMC.

[0056] At the peak of testing in 1963, and before the treaty halting testing, atmospheric "bombardment radiocarbon" reached nearly twice the normal concentration. Its distribution in the atmosphere has been similar since its appearance, with values ​​exceeding 100 pMC for plants and animals living since 1950 AD. The distribution of bombardment radiocarbon has gradually decreased over time, and today's values ​​are around 107.5 pMC. This means that fresh biomass material, such as corn, exhibits a radiocarbon signature around 107.5 pMC.

[0057] As fossil carbon combines with modern carbon in a material, the modern pMC content will be diluted. Assuming 107.5 pMC represents modern biomass material and 0 pMC represents petroleum derivatives, the pMC value measured for that material will reflect the proportions of the two constituent types. A material derived 100% from modern soybeans will exhibit a radiocarbon signature near 107.5 pMC. For example, if the material is diluted with 50% petroleum derivatives, it will exhibit a radiocarbon signature near 54 pMC (assuming the petroleum derivatives have the same carbon percentage as soybeans).

[0058] Biomass content results are derived by assigning 100% equal to 107.5 pMC and 0% equal to 0 pMC. In this regard, a sample measuring 99 pMC would indicate an equivalent biobased content value of 92%.

[0059] Evaluation of the materials described herein was conducted in accordance with ASTM D6866. Median values ​​quoted in this report encompass an absolute range of 6% (±3% on either side of the biobased content value) to account for variation in the final component radiocarbon signature. All materials are presumed to be of modern or fossil origin, and the desired result is the amount of biobased component "present" in the material, not the amount of biobased material "used" in the manufacturing process.

[0060] The renewable resource-derived emollients can have a biobased content of from about 10% to about 100% using ASTM D6866-10, Method B; in certain embodiments, the emollients can have a biobased content of from about 30% to about 90% using ASTM D6866-10, Method B; in certain embodiments, the emollients can have a biobased content of from about 45% to about 85% using ASTM D6866-10, Method B. In certain embodiments, the skin care composition can have a biobased content of from about 10% to about 100% using ASTM D6866-10, Method B; in certain embodiments, the skin care composition can have a biobased content of from about 30% to about 90% using ASTM D6866-10, Method B; in certain embodiments, the skin care composition can have a biobased content of from about 45% to about 85% using ASTM D6866-10, Method B.

[0061] To apply the ASTM D6866-10 methodology to determine the biobased content of a skin care composition, a representative sample of the skin care composition must be obtained for testing. For example, a sample of the skin care composition or emollient can be obtained before it is added to the absorbent article. In an alternative embodiment, a representative amount of the skin care composition or emollient can be obtained from the absorbent article using known separation techniques.

[0062] VII. Absorbent articles As described herein, the skin care composition described herein can be applied to various absorbent articles.Such absorbent articles can include diapers, training pants, incontinence garments, sanitary napkins, bandages, wipes, tissue paper products, and any other suitable absorbent articles.It is important to note that absorbent articles can also be derived from renewable resources.An example of such absorbent article is described in US Patent Application Publication No. 2007 / 0219521.

[0063] FIG. 1 is a plan view of an absorbent article of the present invention, in this case a diaper 20, in a flat, uncontracted state, with portions of the diaper's structure cut away to more clearly show the diaper's structure. The portion of the diaper 20 that faces the wearer is oriented toward the viewer. As shown in FIG. 1, the diaper 20 includes a topsheet 24, an outercover 26, an acquisition layer (not shown), and an absorbent core 28 positioned between at least a portion of the topsheet 24 and the backsheet 26. The absorbent article further includes side panels 30, elasticized leg cuffs 32, an elastic waist feature 34, and a fastening system generally designated 40. The diaper 20 has a first waist region 36, a second waist region 38 opposite the first waist region 36, and a crotch region 37 located between the first and second waist regions 36, 38. The periphery of the diaper 20 is defined by the outer edges of the diaper 20, with longitudinal edges 50 extending generally parallel to the longitudinal centerline 100 of the diaper 20 and end edges 52 extending between the longitudinal edges 50 generally parallel to the lateral centerline 110 of the diaper 20. The outermost surface of the backsheet / outercover 26 forms the garment-contacting surface of the diaper 20 (not shown), while the innermost surface of the topsheet 24 forms the body-contacting surface of the diaper 20 (not shown).

[0064] FIG. 2 shows an exemplary absorbent article 10, which may be a sanitary napkin or panty liner, having a body-facing surface 12 comprising a topsheet 14, a backsheet 16 joined to the topsheet 14, and an absorbent core 18. The absorbent article 10 may have a longitudinal axis "L" and may include additional features commonly found in napkins, such as "wings" or "flaps" (not shown), as known in the art, and / or a fluid acquisition layer to facilitate fluid transport to the absorbent core 18. Similarly, the topsheet of the absorbent article may have any of a variety of features known in the art. For example, the topsheet 14 may have embossed channels to direct fluid flow and may have apertures to aid in fluid acquisition. The topsheet 14 of the absorbent article 10 of the present disclosure may have a skin care composition 22 disposed thereon.

[0065] In certain embodiments, for example, when the absorbent article is a sanitary napkin, the topsheet can be configured to be compliant, soft-feeling, and non-irritating to the wearer's skin and hair. Furthermore, the topsheet can be liquid pervious, allowing liquids (e.g., menses and / or urine) to easily penetrate its thickness. Suitable topsheets may be manufactured from a wide range of materials, including woven and nonwoven materials (fibrous nonwoven webs); polymeric materials such as apertured molded thermoplastic films, perforated plastic films, and hydroformed thermoplastic films; porous foams; reticulated foams; reticulated thermoplastic films; and thermoplastic scrims. Suitable woven and nonwoven materials may be composed of natural fibers (e.g., wood or cotton fibers or processed cotton), synthetic fibers (e.g., polymeric fibers such as polyester, polypropylene, or polyethylene fibers), or a combination of natural and synthetic fibers. When the topsheet comprises a nonwoven web, the web may be manufactured by a number of well-known techniques. For example, the web may be spunbonded, carded, wet-laid, meltblown, hydroentangled, combinations of the above, and the like.

[0066] The backsheet in such embodiments may be impermeable to liquids (e.g., menses and / or urine) and may be manufactured from a thin plastic film, although other flexible, water-blocking materials may also be used. The backsheet may prevent exudates absorbed and retained in the absorbent core from wetting articles that contact the absorbent article, such as bed sheets, pants, pajamas, and underwear. Thus, the backsheet may comprise a woven or nonwoven material, a polymeric film such as a thermoplastic film of polyethylene or polypropylene, or a composite material such as a film-coated nonwoven material. In one embodiment, the backsheet may be a breathable backsheet, as described in U.S. Pat. No. 6,623,464.

[0067] The topsheet and backsheet can be positioned adjacent the body-facing and garment-facing surfaces of the absorbent core such that the absorbent core is disposed between the topsheet and backsheet. The absorbent core can be joined to the topsheet, the backsheet, or both by any method, such as attachment means known in the art (not shown in FIG. 1). However, embodiments of the present disclosure are contemplated in which a portion of the entire absorbent core is not attached to either the topsheet, the backsheet, or both.

[0068] VII. Treatment of absorbent articles with skin care compositions When preparing the absorbent articles described herein, the skin care composition can be applied so that at least a portion of the skin care composition is transferred from the treated article to the wearer's skin during wear. That is, the skin care composition can be applied directly to one or more wearer-contacting surfaces, or it can be applied to an alternative location or by an alternative means so that it can be easily transferred from one or more wearer-contacting surfaces during use without user / caregiver intervention. For example, a material disposed under the wearer-contacting surface, an encapsulated composition, etc. Furthermore, the skin care composition can be applied to other areas of the article to deliver it to one or more of the wearer's buttocks, abdomen, back, waist, sides, thighs, etc. Non-limiting examples of suitable methods include spraying, printing (e.g., flexographic printing), coating (e.g., contact slot coating, gravure coating), dipping, extrusion, or a combination of these application techniques, such as spraying the skin care composition onto a rotating surface such as a calendar roll, and then transferring the composition to the desired part of the article. Alternatively, the skin care composition can be applied to the substrate as a solid or semi-solid material via various methods. It is understood that different application techniques / devices are suitable for materials having rheological properties (e.g., shear viscosity, modulus) within certain ranges. Other suitable techniques for treating absorbent articles with skin care compositions are described in U.S. Patent No. 6,570,054.

[0069] In certain embodiments, the absorbent article comprises from about 2 mg to about 300 mg of skin care composition per absorbent article, in certain embodiments, from about 5 mg to about 200 mg, and in certain embodiments, from about 10 mg to about 150 mg. The skin care composition may be applied to a portion of the absorbent article at about 2 gsm to about 100 gsm, about 5 gsm to about 70 gsm, about 1 gsm to about 40 gsm, about 5 gsm to about 25 gsm, about 10 gsm to about 20 gsm, and about 10 gsm to about 60 gsm in the area including the skin care composition. GSM or grams per square meter is calculated by dividing the weight of the skin care composition by the area to which the skin care composition is applied. The skin care composition may be applied to the topsheet of the absorbent article (e.g., the surface of the topsheet facing the wearer). The skin care composition may be applied to the absorbent article in various defined patterns, such as dot(s), stripe(s), square(s), circle(s), or oval(s). When applied as stripes, the stripe length may be up to the length of the absorbent article, and the width may be about 0.1 mm to 50 mm, about 0.5 mm to about 20 mm, and about 1 mm to about 10 mm. To achieve the desired benefit for the wearer, the skin care composition may be applied to specific areas of the absorbent article, not limited to the outer longitudinal edges of the absorbent article, to the area opposite the vaginal opening, or to one or both ends of the absorbent article. See, for example, European Patent Application No. 1455716 and PCT International Publication No. WO2003 / 051260.

[0070] VIII. Communicating relevant environmental messages to consumers The present disclosure, which relates to absorbent articles incorporating skin care compositions derived from renewable resources, further provides a means for communicating environmental messages to consumers. Such messages can be displayed on the absorbent article (or associated packaging). The associated environmental messages can identify the absorbent article and / or skin care composition as being eco-friendly or earth-friendly, having low petroleum (or oil) dependency or content, having low foreign petroleum (or oil) dependency or content, having low petrochemical content or petrochemical-free ingredients, being made from renewable resources or having components made from renewable resources, and / or being made from plant-derived ingredients. This communication is important for consumers who may have an aversion to the use of petrochemicals (e.g., consumers concerned about the depletion of natural resources or consumers who perceive petrochemical-based products as unnatural or environmentally unfriendly) and for environmentally conscious consumers. Without such communication, the benefits of the present disclosure may not be conveyed to some consumers.

[0071] Communication may occur in a variety of communication forms. Suitable communication forms include store displays, posters, billboards, computer programs, brochures, packaging copy, shelf information, videos, advertisements, internet websites, pictograms, iconography, or any other suitable communication form. Information may be available in stores, on television, in computer accessible forms, in advertisements, or any other suitable venue. Ideally, multiple communication forms may be employed to spread relevant environmental messages.

[0072] The communication may be written, audio, or conveyed by one or more photographs, graphics, or icons. For example, a television or internet-based advertisement may have a narration, voiceover, or other audible communication of the relevant environmental message. Similarly, the relevant environmental message may be conveyed in written form using any of the suitable communication forms listed above. In certain embodiments, it may be desirable to quantify the use of petrochemicals in the skin care compositions of the present invention compared to currently commercially available skin care compositions.

[0073] The relevant environmental message may also include a petrochemical equivalent message. Many renewable, naturally occurring, or non-petroleum-derived materials may be known. However, when used with skin care compositions, these materials often lack the performance characteristics that consumers expect. Therefore, a petrochemical equivalent message, as described above, may be necessary to convince consumers that skin care compositions derived from renewable resources exhibit equivalent or better performance characteristics compared to petroleum-derived skin care compositions. A suitable petrochemical equivalent message may include a comparison with absorbent articles and / or skin care compositions not derived from renewable resources. This message conveys both the relevant environmental message and the petrochemical equivalent message.

[0074] IX. Test Methods Thermal analysis of lotions by melting rate based on DSC Differential scanning calorimetry (DSC) is an analytical technique used to measure the thermal properties of test samples. Test samples are analyzed with a differential scanning calorimeter to determine the temperature range over which a phase change occurs. Specifically, in this implementation, the melting rates at three different temperatures (25°C, 35°C, and 50°C) are determined. A suitable DSC is a TA Discovery interfaced with Trios software (available from TA Instruments, New Castle, Delaware, 19720, USA) or equivalent. The measurement system is calibrated and operated according to the manufacturer's instructions, and all measurements are performed in a laboratory maintained at 23°C ± 2°C and 50% ± 2% relative humidity. Test samples are conditioned under the same environmental conditions for at least two hours before testing.

[0075] If the lotion test sample is not readily available as an undiluted sample, it is obtained by extracting it from the lotion-coated substrate excised from the absorbent article using a suitable solvent (e.g., reagent-grade methylene chloride, available from VWR International, or equivalent) that solvates all components of the lotion composition. The lotion-containing substrate layer (typically the garment-facing surface) is excised from the absorbent article, avoiding areas with extensive adhesive (e.g., beads around cuff attachments, edge seals, etc.). Care is taken not to contaminate the lotion-coated layer in the removal process. The entire lotion-coated substrate is extracted with an excess of the selected solvent, and then the solvent is removed under nitrogen with minimal heat, if necessary. A total of approximately 9 milligrams of lotion test sample is collected and DSC analysis is completed.

[0076] To analyze the test sample, approximately 3 milligrams of test sample is placed in a tared DSC sample pan and lid (e.g., a Tzero pan (#901683.901) and lid (#90167.701) available from TA Instruments). The mass of the test sample is recorded to the nearest 0.001 mg and loaded into the instrument. The DSC instrument is programmed to perform two heating cycles as follows: Equilibrate for 5 minutes at a starting temperature of -30°C. Heat to 110°C at a rate of 10°C / min. Hold at 110°C for 5 minutes, then cool to -30°C at a rate of 10°C / min. Hold at -30°C for 5 minutes and heat back to 110°C at a rate of 10°C / min. Heat flow (W / g) and temperature (°C) data are collected throughout the test.

[0077] To analyze the data, plot the heat flow (W / g) versus the temperature (°C) of the second thermal cycle. Draw a linear baseline starting from the onset of the phase change (i.e., melting) to the end of the phase change. Integrate the area under the heat flow curve with respect to time to determine the enthalpy in 0.01 J / g for the following portions of the curve: the entire curve (area 全体 ), starting point ~ 25℃ temperature (area 25C ), starting point ~ 35℃ temperature (area 35C ), starting point ~ 50℃ temperature (area 50C ) Calculate the melting rate at 25°C as follows: Melting rate at 25°C = (area 25C / area 全体 ) * 100 Record to the nearest 0.1 percent. Similarly, calculate the melting rates at 35°C and 50°C and record each to the nearest 0.1 percent.

[0078] Repeat the analysis for a total of three lotion test samples in the same manner. Calculate the arithmetic mean of the melting percentage at 25°C, the arithmetic mean of the melting percentage at 35°C, and the arithmetic mean of the melting percentage at 50°C, each recorded to the nearest 0.1 percent.

[0079] Dimensions and values ​​disclosed herein should not be understood as being strictly limited to the exact numerical values ​​recited. Instead, unless otherwise indicated, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm."

[0080] All documents cited in the Detailed Description are, in relevant part, incorporated herein by reference. The citation of any document should not be construed as an admission that it is prior art with respect to the present disclosure. To the extent that any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this document shall control.

[0081] While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.

Claims

1. A top sheet, Back seat and an absorbent core disposed at least partially between the topsheet and the backsheet; a skin care composition disposed on at least a portion of the topsheet; and An absorbent article comprising: The skin care composition comprises: a. 80% to 95% of at least one emollient derived from renewable resources; b. 5% to 20% of at least one immobilizing agent derived from renewable resources; the emollient is selected from the group consisting of avocado oil, coconut wax, shea butter, castor oil, hydrogenated castor oil, coconut oil, olive oil, vegetable oil, and combinations thereof; the immobilizing agent is selected from the group consisting of rice bran wax and a combination of beeswax and rice bran wax; the skin care composition has a melting percentage based on DSC at 50°C of 10% to 25%; the skin care composition has a bio-based content of 85% to 100% as measured using ASTM D6866-10, Method B; An absorbent article, wherein the skin care composition is substantially free of petroleum-derived materials.

2. The skin care composition has a viscosity of 100 to 5,000 dynes / cm ２ 10. The absorbent article of claim 1, comprising a rheological agent that provides a modulus in the range of

3. The absorbent article of claim 1 or 2, wherein said skin care composition has a needle penetration hardness of 5 to 365 millimeters as measured using ASTM method D1321.

4. The absorbent article according to any one of claims 1 to 3, wherein said skin care composition further comprises at least one surfactant.

5. 5. The absorbent article of any one of claims 1 to 4, wherein said skin care composition further comprises a skin care active selected from the group consisting of zinc oxide, vitamins and their derivatives, sunscreens, preservatives, anti-acne medications, antioxidants, skin soothing and healing agents, chelating and sequestrants, essential oils, skin sensates, proton donating agents, protease and other enzyme inhibitors, antimicrobial agents, humectants, multifunctional agents, and mixtures thereof.

6. The absorbent article of any one of claims 1 to 5, wherein said skin care composition further comprises an antioxidant.

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