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    • 专利摘要:
    The present invention relates to a hygiene article consisting of an effective odor control system, in which essential oils, an organic zinc salt such as a zinc ricinoleate, and preferably a chelating agent and / or a physical agent interact synergistically to reduce odor of bodily fluids. The present invention is of particular interest in the field of hygiene products, in particular feminine hygiene absorbent articles (sanitary napkins, panty liners).
    公开号:BE1022338A9
    申请号:E20145059
    申请日:2014-11-07
    公开日:2017-02-15
    发明作者:Bvba Ontex
    申请人:Bvba Ontex；
    IPC主号:
    专利说明:

    HYGIENE ARTICLE COMPRISING AN EFFECTIVE SCENT CONTROL
    SYSTEM
    TECHNICAL FIELD
    The present invention relates to a hygiene article consisting of an effective odor control system in which the essential oils and / or the active ingredients thereof, an organic zinc salt such as zinc ricinoleate and a chelating agent interact synergistically to reduce odor of bodily fluids. The present invention is of particular importance in the field of hygiene products, in particular feminine hygiene absorbent articles (sanitary napkins, panty liners)
    BACKGROUND
    A wide variety of disposable absorbent articles designed to be effective not only in the absorption of body fluids such as urine, blood, menstrual period and the like, but also to be sanitary and comfortable to use, are known in literature. The disposable absorbent products of this type generally consist of a liquid-permeable top sheet material, of an absorbent core (or generally of a liquid storage layer), and of a liquid-impervious backsheet material. Various shapes, sizes and thicknesses of such articles have been investigated in an effort to make their use more comfortable and easy.
    Recently, research has focused on the removal of unpleasant odors. Many body fluids have an unpleasant odor (or a bad smell), or develop such an odor when in contact with air and / or bacteria for prolonged periods. Urine and / or other secretions absorbed in the absorbent article can be converted to ammonia by urease, which is produced by microorganisms present in the urogenital flora (vaginal, fecal, skin ...). Among other things, ammonia could become a source of unpleasant odors. Furthermore, typical odors related to the use of hygiene-absorbing articles include fatty acids, amines, sulfur-containing compositions, ketones, aliphatic acids, and aldehydes.
    Many attempts have been made to reduce odors perceived by the user of disposable absorbent articles. One approach is disclosed in EP2468309A1 in which the cyclodextrin with a composition of the menthol family and ionone is complexed in an absorbent article. For the cyclodextrin complex to effectively release the components of the complex, the complex must come into contact with moisture.
    Here too, there is a problem with such a system of an odor cyclodextrin complex being included in an absorbent article because other components, such as the absorbent core and / or the superabsorbent material, of the absorbent article have a strong affinity for bodily fluids. When an absorbent article comes into contact with a bodily fluid, such as menstruation or urine, the cyclodextrine complex is in competition with the absorbent core and / or the super absorbent material for the moisture in the bodily fluid. This competition therefore reduces the amount of moisture available to contact the cyclodextrine complex and limits the effective action of the odor control system. Another disadvantage of this odor control system is that it only provides a way to mask odors and does not reduce / limit the formation of new odors, for example produced by degradation of blood, urine and / or other secretions by microorganisms. EP2083873B1 discloses an absorbent article in which an organic zinc salt such as zinc ricinoleate and an antimicrobial agent or alkali metal chloride or alkaline earth metal chloride interact to reduce odors such as ammonia. Here too, there are disadvantages associated with the proposed solution since the antibacterial agents used are of a non-natural origin, which may cause safety issues.
    Each of these approaches has its disadvantage. None of the prior art has identified a disposable absorbent article that effectively suppresses a variety of different types of odor of bodily fluids.
    Therefore, there is a continuing demand in the art for efficient odor control systems in absorbent articles. In particular, it would be desirable to provide an odor control system that achieves efficient odor reduction.
    The present invention seeks to solve at least some of the aforementioned problems.
    To this end, the invention seeks to provide a better hygienic article with an odor control system that can reduce the perception of all odors related to bodily secretions present on the hygiene article, with an emphasis on vaginal secretions, blood, sweat, urine, ammonia and others.
    SUMMARY OF THE INVENTION
    The present invention relates to a hygiene article, preferably a disposable absorbent article, in particular feminine hygiene absorbent articles such as sanitary napkins, panty liners, or diapers such as baby diapers or adult incontinence diapers.
    In a first aspect, the present invention is directed to a hygiene article consisting of a composition of an odor control composition consisting of an antimicrobial agent and an organic zinc salt, and preferably a chelating agent and / or a physical agent that operates according to the Zwaardemaker principle . Herein, the antimicrobial agent is selected from the group consisting of essential oils and / or the active components thereof. Preferably, the antimicrobial agent and the organic zinc salt, and, in a preferred embodiment, also the chelating agent and / or the physical agent, are provided in an odor composition for preventing and / or suppressing odors. The hygiene article preferably consists of a layer, such as a liquid-absorbent core or an acquisition and distribution layer, which is provided with a mixture of the above-mentioned antimicrobial agent and the above-mentioned organic zinc salt and preferably the above-mentioned chelating agent and / or the above-mentioned physical agent. Surprisingly, it has been noted that this combination of an antimicrobial agent selected from the group of essential oils and / or its active components and an organic zinc salt, and preferably a chelating agent and / or a physical agent, results in a combined effect of odor control both in the short term and in the long term, which was not anticipated before.
    In a preferred embodiment, the antimicrobial agents selected from the group consisting of essential oils, tea cinnamon oils, citronella oil, wormwood, lemongrass, cedar, cloves, pine, bergamot, lemon, orange, thyme, cardamom and lavandino, and mixtures thereof and / or the active components preferably consist of thymol, citronella, citronellol, estragol, geranyl acetate, eucalyptol, eugenol, linalool, linalyl acetate, terpineol, cinnamaldehyde, cinnamic acid, citral, dihydromyrcenol, rose oxide, cineol and cajeputene. One advantage of the invention is that the safety profile of essential oils and / or their active ingredients is much superior to that of the majority of non-natural antimicrobial additives commonly used in odor control systems of state-of-the-art hygiene articles.
    The essential oils and / or the active ingredients thereof have intrinsic fragrant properties, which allow their composition to have refreshing or aromatic properties without the need to add an additional perfume.
    In a preferred embodiment, the organic zinc salts have been shown to be effective against nitrogen-containing stinking molecules, sulfur-containing stench, aliphatic acids, and aldehyde. Sulfur-containing odors and aliphatic acids are of particular importance for hygiene items, especially feminine hygiene products, as they are major contributors to the general offensive odor of used sanitary pads and panty liners.
    In a preferred embodiment, the hygiene article consists of a chelating agent that prevents odors from being formed by delaying the breakdown of bodily secretions including urine, blood & blood components. The chelating agent ensures that the essential component for degradation reactions such as iron ions is not made available in the environment. In addition to that, it is also known to slow the growth rate of odor-causing microorganisms, e.g. Proteus mirabilis, an everyday bacterium that is part of the urogenital micro-flora and is urease positive, rapidly degrading urea in ammonia.
    In a preferred embodiment, the hygiene article consists of a physical agent that operates according to the Sword Maker principle, such as ionons, which are of particular interest in the invention because it is a class of compositions useful to reduce the perception of sulfur odors. Such sulfur-based compositions are typically produced by the degradation of menstrual fluids and their control is particularly important in menstrual absorbent articles such as sanitary napkins or panty liners.
    In a preferred embodiment, the hygiene article consists of a slow release system to release the aforementioned odor control composition slowly.
    In a second aspect, the present invention provides a method for manufacturing a hygiene article, preferably the hygiene article as described in this document, comprising the steps of providing a hygiene article consisting of a topsheet, a backsheet and one or multiple layers placed between the above-mentioned topsheet and the above-mentioned backsheet; and treating the article, one or more of layers, the topsheet and / or the backsheet with a fragrance composition of an antimicrobial agent selected from the group consisting of essential oils and / or active components of essential oils, and an organic zinc salt, and preferably a chelating agent and / or a physical agent, thereby providing the above-mentioned article with an odor control composition.
    In a further aspect, the present invention provides another method for manufacturing a hygiene article, preferably the hygiene article as described in this document, comprising the steps of treating a topsheet, a backsheet and / or one or more layers, suitably for use in a hygiene article, with an odor control composition of an antimicrobial agent selected from the group consisting of essential oils and / or active components of essential oils, and an organic zinc salt, and preferably a chelating agent and / or a physical agent; and assembling a hygiene article consisting of one or more layers placed between a topsheet and a backsheet, at least one of the above-mentioned topsheet, backsheet or layers being treated with the above-mentioned odor control composition, thereby providing said article with an odor control composition.
    In a further aspect, the present invention provides use of an antimicrobial agent consisting of essential oils and / or active ingredients thereof and an organic zinc salt, and preferably a chelating agent and / or physical agent that operates according to the Zwaardemaker principle, as an odor control composition working for a hygiene item.
    In a preferred embodiment, the hygiene article provided with an odor control composition of the invention is an absorbent article, preferably a feminine hygiene absorbent article or a diaper, most preferably a sanitary napkin, a panty liner or an adult incontinence slip. In a particularly preferred embodiment, the above-mentioned article consists of a liquid-absorbent core.
    Other preferred embodiments are those as specified in the dependent claims and further in this document.
    The general purpose of the present invention is to provide efficient and durable protection against bad odors during the use of an absorbent hygiene article, in particular a sanitary napkin or panty liner
    Typical odors related to hygiene articles used include fatty acids, ammonia, amines, sulfur-containing compositions, ketones, aliphatic acids, and aldehyde (see, e.g., George R. Huggins, et al., "Vaginal Odors and Secretions", Clinical Obstetrics and Gynecology, Volume 24, Nr. 2, June 1981, Harper &, Row, Publishers, Ine.). They are present as natural ingredients of bodily fluids or result of degradation processes of natural ingredients such as urea or blood, which are often assisted by microorganisms occurring in the urogenital flora (vaginal, fecal, skin ... flora) and those on the absorbent products are present during use.
    The bodily fluids likely to be present in hygiene items are urine, menstruation (including blood and blood components), vaginal secretions and sweat.
    More specifically, the fragrant components may consist of: • Aliphatic acids such as propanoic acid, butyric acid, isovaleric acid, valeric acid, lactic acid ... • Sulfur-containing compositions such as hydrogen sulfide, methyl mercaptan, dimethyl sulfide, dimethyl bisulfide ... • Nitrogen-containing compositions such as pyrrole, indole, trimethyl amine, ammonia, 2-piperidone ... • Aldehyde such as acetaldehyde, propionaldehyde, butyraldehyde, valeraldehyde, isovaleraldehyde ... • Ketones such as 2-butanone, 2-pentanone, 4-heptanone, 2-methyl-5 (1-methylethenyl) -2-cyclohexenone, methyl isobutyl ketone ... • Fatty acids such as 3 methyl-2-hexenoic acid, hydroxy-3-methyl-hexanoic acid 3 ...
    To offer efficient and sustainable protection against bad odors, especially for sanitary napkins or panty liners, efficient odor control must be available for sulfur-containing odors (hydrogen sulphide, methyl mercaptan ...) and aliphatic acids (lactic acid, butyric acid ...) · However, other types of odor are also addressed by the present invention.
    DETAILED DESCRIPTION OF THE INVENTION
    Unless otherwise specified, all terms used to disclose the invention, including technical and scientific terms, have the meaning as generally understood by someone of ordinary skill in the art to which this invention belongs. By way of further guidance, term definitions are included to better appreciate the teachings of the present invention.
    As used herein, the following terms have the following meanings: "A," "an," and "an" as used herein refers to both singular and plural referents unless the context clearly dictates otherwise. As an example, a "compartment" refers to one or more than one compartment. "Approximately" as used herein refers to a measurable value such as a parameter, an amount, a temporary duration, and the like, intended to include variations of +/- 20% or less, preferably +/- 10% or less , more preferably +/- 5% or less, even more preferably +/- 1% or less, and even more preferably +/- 0.1% or less of the specified value, in so far such variations have been designated to the disclosed invention to function.
    However, it must be understood that the value to which the "approximately" provision refers itself is also specifically disclosed. "Consist of" consisting of "and" consisting of "as used herein are synonymous with" include "," include "," include "or" contain "," contain "," contain "and include or open terms that presence of what follows specify, for example, a component and do not exclude or prevent the presence of additional, non-recited components, properties, element, members, steps known in the prior art or disclosed therein.
    The recitation of numerical regions by end points includes all numbers and fractions that are housed within that range, as well as recited end points.
    As used herein, the following terms have the following meanings: "Absorbent article" refers to devices that absorb and contain fluid, and more specifically, refers to devices that are placed against or in proximity to the wearer's body for the various secretions that discharged from the body to absorb and contain. The absorbent articles include, but are not limited to, diapers, adult incontinence diapers, training pants, diaper holders and liners, sanitary napkins, and the like. "Diaper" refers to an absorbent article generally worn by infants and incontinent persons over lower torso. "Disposable" is used herein to describe absorbent articles that are generally not intended to be washed or otherwise repaired or reused as an absorbent article (ie, they are intended to be discarded after single use and, preferably, to be discarded). recycled, composted or disposed of in another environmentally compatible way).
    The absorbent article of the present invention consists of a liquid-permeable topsheet, preferably a liquid-impermeable backsheet, and of an absorbent core arranged between the topsheet and the backsheet.
    Optionally, the absorbent article may consist of one or more acquisition and distribution layers placed between the topsheet and backsheet, preferably between the topsheet and an absorbent core or layer, more preferably directly below or in the vicinity of the topsheet.
    The term "topsheet" refers to a liquid-permeable fabric material that forms an inner cover of the absorbent article and which, in use, is placed in direct contact with the wearer's skin. The topsheet may consist of a non-woven material, e.g. spunbond, melt spider, carded, water entangled, wetlaid, etc. Suitable non-woven materials may be composed of artificial fibers such as polyester, polyethylene, polypropylene, viscose, rayon etc. or natural fibers such as wood pulp or cotton fibers, or of a mixture of natural and artificial fibers. Further examples of top sheet materials are porous foam, apertured plastic films, laminates of non-woven materials and apertured plastic films, etc. The materials suitable as top-sheet materials should be soft and non-irritating to the skin and easily permeable to body fluid, e.g. urine or menstrual fluid. The inner cover sheet may further be different in different parts of the absorbent article.
    The "back sheet" refers to a material that forms the outer cover of the absorbent article. The back sheet can be the same or different in different parts of the absorbent article. At least in the area of the absorbent, the back sheet consists of a liquid impermeable material in the form of a thin plastic film, e.g. a polyethylene or polypropylene film, a non-woven material covered with a liquid impermeable material, a hydrophobic non-woven material that resists liquid penetration, or a laminate of a plastic film and a non-woven material. The back sheet material can be air permeable to allow vapor to escape from the absorbent material, while still preventing liquids from passing through. Examples of air-permeable back sheet materials are porous polymer films, non-woven laminates of spunbond and melt-spin layers and laminates of porous polymer films and non-woven materials. "Absorbent" or "absorbent core" is the absorbent structure suitable between the top sheet and the back sheet of the absorbent article in at least the crotch region thereof. The absorbent material can be of any conventional type. Examples of commonly occurring absorbent materials are cellulose fluff pulp, tissue layers, highly absorbent polymers (so-called super-absorbent polymer particles), absorbent foam materials, absorbent non-woven materials or the like. It is common to combine cellulose fluff pulp with super-absorbent polymers in an absorbent material. The super-absorbent polymers are water swellable, water insoluble organic or inorganic materials capable of absorbing at least about 20 times their own weight of an aqueous solution containing 0.9% by weight of sodium chloride Organic materials suitable for use as superabsorbent materials including uric materials such as polysaccharides, polypeptides and the like, as well as synthetic materials such as synthetic hydrogel polymers. Such hydrogel polymers include, for example, alkali metal salts of polyacrylic acids, polyacrylamide, polyvinyl alcohol, polyacrylates, polyvinyl pyridine, and the like. Other suitable polymers include hydrolyzed acrylonitrile grafted starch, acrylic acid grafted starch, and isobutylene maleic anhydride copolymers and mixtures thereof. The hydrogel polymers are preferably lightly reinforced to make the material substantially water insoluble. The designated superabsorbent materials are further surface-reinforced so that the outer surface or shell of the superabsorbent particle, fiber, flake, sphere, etc. have a higher cross-link density than the inner portion of the superabsorbent. The superabsorbent materials can be in any form suitable for use in absorbent compositions including particles, fibers, flakes, atmospheres, and the like.
    The "acquisition and distribution layer" or "ADL" also refers to a sublayer that is preferably a non-woven winding layer below the topsheet (or lace fabric) of an absorbent product, which speeds up the transport and distribution of liquids through the absorbent core.
    Preferably, the hygiene article consists of an absorbent core consisting of an odor control composition according to the present invention.
    The "antimicrobial agent" refers to a composition capable of killing microorganisms that exist in the urogenital region of humans, such as bacteria (such as ammonia-producing bacteria), or fungi, e.g. yeast like
    Candida albicans, or to suppress the growth of the above-mentioned bacteria or fungi.
    The "chelating agent" refers to a composition that binds complex to a solubilized (metal) ion at multiple points in a coordination.
    Chelating agents can be selected from the non-restricted list of 2-Amino ethyl phosphonic acid (EPNA), Dimethyl methyl phosphonate (DMMP), 1-Hydroxy ethylidine-1,1-diphosphonic acid (HEDP), Aminotris (methylene phosphonic acid) (TMPA) , Ethylenediaminetetra (methylene phosphonic acid) (EDTMP), Tetrametylenediaminotetra (methylene phosphonic acid) (TDTMP), Hexametylenediaminotetra (methylene phosphonic acid) (HDTMP), Diethylenetriaminepenta (methylene phosphonic acid) (DTPMP), Ethylenediaminet (N-pentanoic acid), Netetanoic acid, tetraxetanoicetetraone, N-octanoicetetraone, tetone, N-octanoetetraone (phosphonomethyl) iminodiacetic acid (PMIDA), 2-Carboxy ethyl phosphonic acid (CEPA), 2-Hydroxy phosphono carboxylic acid (HPCA), Amino-Tris (methylene phosphonic acid) (AMP), Sodium tripolyphosphate (STPP), Hydroxyethyl ethylene diamine triacetic acid (HEDTA) , Dihydroxy ethyl ethylene diamine diacetic acid, Diehylene triamine pentacetic acid (DTPA), Triethylene tetramine hexaacetic acid (TTHA), Ethylenediamine di-hydroxyphenyl acetic acid (EDDHA), Ethylene diamine di- (2-hydroxy-5-sulfophenylacetic ) acid (EDDHSA), Ethylene diamine di-hydroxy-methylphenylacetic acid (EDDHMA), Ethylene diamine di- (5-carboxy-2-hydroxyphenyl) acid (EDDCHA), Calcium disodium ethylene diamine tetraacetate (CaNa2EDTA), Nitrile triacetic acid (NTA), Propylene diamine tetraacetic acid (PDTA), Polyflavonoids, Sulfonates, Dimercaptosuccinic acid, Fulvic and humic acid, Lignosulfonic acid, Gluconic acid, Amino acids, Polysaccharides, Polyols, Glutamic acid, citric, tartar, ascorbic, malic or fumaric acid combinations.
    The term "essential oils and / or active components thereof" is used herein to distil or extract oils or extracts from plants and active components of these oils.
    The typical essential oils and their main constituents are those obtained from, for example, thyme (thymol, carvacrol), oregano (carvacrol, terpenes), lemon (limonene, terpene, fellandrene, pineen, citral), lemongrass (citral, methylheeptone, citronellal, geraniol), orange flower (linalool, [beta] -pineen, limonene), orange (limonene, citral), anise (anethole, safrole), clove (eugenol, eugenyl acetate, caryophylleen), rosemary (borneol, bornyl esters, camphor), geranium (geraniol , citronellol, linalool), lavender (linalyl acetate, linalool), citronella (geraniol, citronellol, citronellal, campene), eucalyptus (eucalyptol); peppermint (menthol, menthyl esters), spearmint (carvone, limonene, pinene); evergreen (methyl salicylate), camphor (safrole, acetaldehyde, camphor), bay (eugenol, myrcene, chavicol), cinnamon (cinnamaldéhyde, cinnamyl acetate, eugenol), tea tree (terpinen-4-ol, cineole), cardamom (eucalyptol, cineol) and cedar leaf ([alpha -] - thujone, [beta] -thujone, fenchoon). Essential oils are widely used in perfumery and as flavorings, medicine and solvents. The essential oils of the present invention are also used in hygiene articles such as sanitary napkins, panty liners. Essential oils, their composition and production, are described in detail in Encyclopedia of Chemical Technolo, 4th Edition and in De Merck Index, 13th Edition. Preferably, the above essential oils are hydrophobic and / or consist of a volatile active component. "Organic zinc salts" refers to zinc salts of organic carboxylic acids that have 2 to 30 carbon atoms, in particular 12 to 24 carbon atoms are preferably used. The carboxylic acid group can be attached to aliphatic, aliphatic-aromatic, aromatic aliphatic, alicyclic or aromatic residues, wherein the aliphatic chain or the alicyclic ring can be unsaturated and optionally replaced by, for example, hydroxyl or C 1 to C 4 alkyl. These salts include zinc acetate, zinc lactate, zinc ricinoleate and zinc abietate. More preferably, the zinc salt is the zinc salt of an unsaturated hydroxylate fatty acid that has 8 to 18 carbon atoms. Although there is no specific limitation on the number of unsaturated double bonds or hydroxy groups, those fatty acids that have one or two unsaturated double bonds and one or two hydroxyl groups appear to be preferred. The most preferred embodiment is zinc ricinoleate. Zincricinoleate isricinoleic acid, an important fatty acid found in castor oil. It is used in many deodorants as an odor-neutralizing agent.
    The term "physical agent that works according to the Zwaardemaker principle" refers to an odor composition that preferably binds at some or all of the nasal receptor sites of the human body to which certain smelly compositions bind. This means that if both compositions are present in the nasal cavity, there is a reduced capacity for smell to be observed. Ionons, such as α-ionons, ß-ionons or γ-ionons, are examples of such physical agents, since these components have an effective "masking" effect for sulfur-containing odor by making the nose receptors less effective in detecting odor when ionone is present is. Preferably, the ionones used are selected from the list of 1- (2,6,6-trimethyl-1-cyclohexenyl) pent-1-en-3-one; 4- (2,6,6-trimethyl-1-cyclohexen-1-yl) -3-buten-2-one; 4- (2,6,6-Trimethyl-2-cyclohexen-1-yl) -3-buten-2-one, 5- (2,6,6-Trimethyl-2-cyclohexen-1-yl) 4-penten -3-one, (E) -4 (2,2-dimethyl-6-methylidenecyclohexyl) but-3-en-2-one; or a mixture thereof.
    The inventors have found a way to provide a better hygiene article with odor control.
    In particular, the present invention in a first aspect provides a hygiene article consisting of an odor control composition consisting of an antimicrobial agent selected from the group consisting of essential oils and / or an active component thereof and an organic zinc salt. The present invention also provides a hygiene article consisting of an odor control composition consisting of a chelating agent and / or of a physical agent that works according to the Zwaardemaker principle, such as ionons. The present invention provides a hygiene article consisting of an odor control composition consisting of an antimicrobial agent selected from the group consisting of essential oils and / or an active component thereof and an organic zinc salt, and further a chelating agent and / or a physical agent that according to the Zwaardemaker principle, the way ionons work.
    In the present invention, one or more essential oils are used in an effective amount to provide two functions: inhibit the growth of odor-forming microbes and release a pleasant aroma. Preferably, the antimicrobial agents from the group selected from essential oils consist of oils from the tea tree, cinnamon, citronella, artemisia, lemongrass, cedar, cloves, pine, bergamot, lemon, orange, thyme, cardamom and lavandino, and the mixtures thereof and their active components are preferably thymol, citronellal, citronellol, estragol, geranyl acetate, eucalyptol, eugenol, linalool, linalyl acetate, terpineol, cinnamaldehyde, cinnamic acid, lemon, dihydromyrcenol, rose oxide, cineol and cajeputene.
    Antimicrobial agents selected from the group consisting of essential oils for use in the present invention are compositions of natural origin and skin-friendly, supported by extensive dermatological tests with gynecological control. It must be borne in mind that the skin area that comes into contact with absorbent products such as a diaper, panty liner, sanitary napkin or incontinence aid is sensitive and delicate. The safety profile of essential oils and / or their active ingredients is more superior to that of the majority of non-natural antimicrobial additives. In fact, the majority of essential oils of interest are approved as aromatic agents, natural repellents, food additives or natural preservatives for human or animal consumption. Furthermore, the hygiene article is an environmentally friendly product that has the right properties in odor control and safety.
    The prior art odor control systems use, for example, organic poly (acid) components such as benzene acid, sorbic acid, tartaric acid or citric acid of non-natural origin as stated in EP2083873B1. One additional advantage of using essential oils and / or active ingredients in a hygiene article is that the essential oils and / or their active ingredients have intrinsic odorous properties, thereby providing or improving the odor of the odor control system, which allows their composition to have refreshment or aromatic properties without the need to add an extra perfume.
    The amount of odor that is still formed or present (some bodily fluids have an odor of their own, for example lactic acid present in vaginal secretions) is actively neutralized in the absorbent article. The organic zinc salt, which is a chemically neutralizing agent, has been found to be effective against nitrogen-containing odor molecules such as ammonia and indole, sulfur-containing odor such as hydrogen sulfide, methyl mercaptan, dimethyl sulfide, dimethyl bisulfide, etc., aliphatic acids such as lactic acid and butyric acid, and aldehydes such as acetaldehyde and butylaldehyde. Sulfur-containing odors and aliphatic acids are of particular importance for hygiene items, namely feminine hygiene products, since they are major contributors to the general offensive odor of used sanitary napkins and panty liners. The known odor control systems of the prior art mainly focus on the prevention and neutralization of nitrogen-containing odors.
    In a preferred embodiment, the aforementioned odor control composition consists of a chelating agent. The chelating agent prevents odors from being formed by slowing down the breakdown of blood and blood components. The chelating agent ensures that the essential component for degradation reactions (for example, the iron ions) is made unavailable in the environment. In addition to that, it is also known to reduce the growth rate of odor-causing microorganisms, e.g. Proteus mirabilis, a common bacterium that is part of the urogenital microflora and is urease positive, rapidly degrading urea in ammonia.
    In a preferred embodiment, the aforementioned odor control composition consists of a physical agent that works according to the Zwaardemaker principle, preferably ionons. Ionones are of particular interest in the invention because it is a class of compositions that is useful to reduce the perception of odors; in particular, these compositions are useful in the context of hygiene articles because ionons block the perception of sulfur odors by making the nose receptors less effective in detecting odors when ionons are present. Odor-containing sulfur-based components are typically produced by the degradation of menstrual fluids and their control is particularly important in menstrual absorbent articles such as sanitary napkins or panty liners. Suitable ionones include, for example, 1- (2,6,6-trimethyl-1-cyclohexenyl) pent-1-en-3-one; 4- (2,6,6-trimethyl-1-cyclohexen-1-yl) -3-buten-2-one; 4- (2,6,6-Trimethyl-2-cyclohexen-1-yl) -3-buten-2-one, 5- (2,6,6-Trimethyl-2-cyclohexen-1-yl) 4-penten -3-one, (E) -4 (2,2-dimethyl-6-methylidenecyclohexyl) but-3-en-2-one; or a mixture thereof.
    In a preferred embodiment, the organic zinc salt is or consists of zinc ricinoleate. Zinc ricinoleate is zinc salt of ricinoleic acid, which can be derived from zinc and a purified fatty acid from castor seed oil, a vegetable oil obtained from the seeds of the Ricinus communis plant. Zinc ricinoleate has been found to be particularly effective against nitrogen-containing smelly molecules such as ammonia and indole, sulfur-containing odor such as hydrogen sulfide, methyl mercaptan, dimethyl sulfide, dimethyl bisulfide, etc., aliphatic acids such as lactic acid and butyric acid, and aldehydes such as acetaldehyde and butylaldehyde.
    In a preferred embodiment, the aforementioned odor control composition consists of a chelating agent. A chelating agent binds at multiple points at a coordination complex to a solubilized (metal) ion, resulting in a physiologically stable chelate complex with a variety of metal ions. In this way, the chelator "protects" the metal ions and is no longer available to enter another reaction, for example, in the metabolism of a microorganism, with components present in the solution. In particular, for the present invention, the chelators help prevent the formation of odors. One of the most important components in blood, which is an important part of the physical discharge received by sanitary napkins or panty liners, is hemoglobin (in the red blood cells), which contains 4 heme groups, each with an Fe (11+) ion in the Centre. These Fe ions can participate in numerous degradation processes. By keeping the Fe ions unavailable by adding chelating agents, the degradation process of blood can be delayed. Hence, an advantage of the present invention is that less smelly components can be formed by the breakdown of blood, particularly in menstruation, in female absorbent articles. Such smelly components released by blood degradation can be ammonia, hydrogen sulfide, and ketones such as 1-octen-3-one, which are reduced in amount when chelating agents are used. In addition, chelators were able to delay the breakdown of urea present in urine.
    The chelating agents can be selected from the non-restricted list of 2-Amino ethyl phosphonic acid (EPNA), Dimethyl methyl phosphonate (DMMP), 1-Hydroxy ethylidine-1,1-diphosphonic acid (HEDP), Aminotris (methylene phosphonic acid) (TMPA ), Ethylenediaminetetra (methylene phosphonic acid) (EDTMP), Tetrametylenediaminotetra (methylene phosphonic acid) (TDTMP), Hexametylenediaminotetra (methylene phosphonic acid) (HDTMP), Diethylenetriaminepenta (methylene phosphonic acid) (DTPMP), Ethylenediaminotric tetra (N-pentanoic acid, N-tetraone, N-octanoic, tetaminone, N-octanoic, tetaminone) - (phosphonomethyl) iminodiacetic acid (PMIDA), 2-Carboxy ethyl phosphonic acid (CEPA), 2-Hydroxy phosphono carboxylic acid (HPCA), Amino-Tris (methylene phosphonic acid) (AMP), Sodium tripolyphosphate (STPP), Hydroxyethyl ethylene diamine triacetic acid (HEDTA) ), Dihydroxy ethyl ethylene diamine diacetic acid, Diehylene triamine pentacetic acid (DTPA), Triethylene tetramine hexaacetic acid (TTHA), Ethylenediamine di-hydroxyphenyl acetic acid (EDDHA), Ethylene diamine di- (2-hydroxy-5-sulfophenylacetisc h) acid (EDDHSA), Ethylene diamine di-hydroxy-methylphenylacetic acid (EDDHMA), Ethylene diamine di- (5-carboxy-2-hydroxyphenyl) acid (EDDCHA), Calcium disodium ethylene diamine tetraacetate (CaNa2EDTA), Nitrile triacetic acid (NTA) , Propylene diamine tetraacetic acid (PDTA), Polyflavonoids, Sulfonates, Dimercaptosuccinic acid, Fulvic and humic acid, Lignosulfonic acid, Gluconic acid, Amino acids, Polysaccharides, Polyols, Glutamic acid, lemon, tartar, ascorbic, malic, fumaric, lactic or fumaric combinations .
    In a preferred embodiment, the combination of the antimicrobial agent, the organic zinc salt, the chelating agent and the physical agent results in a combined effect in terms of odor control.
    Indeed, this combination gives more odor reduction than the odor reduction associated with the use of one of these agents only at the same total level (whether the antimicrobial agent alone or the organic zinc salt alone or the chelating agents alone or the physical agent alone) in an absorbent article that comes into contact with bodily fluids. In fact, the combination of the antimicrobial agent with an organic zinc salt, a physical agent and with a chelating agent in an absorbent article allows combining odor control mechanisms whereby synergistically reducing or even preventing odor detection over a very broad odor spectrum . It is only by achieving an antimicrobial, chemical, physical and chelating action at the same time that the most optimal odor control can be achieved. While the individual components of the odor control composition each provide a way to reduce the perception of odors, it is the combination of the components that provide a synergistic-effective composition that eliminates the perception of odors and / or prevents the formation of such odors while at the same time refrain from reducing the perception of pleasant aromas originating from the same source or from the proximity of the above source, in particular in the case of stench from blood, urine, vaginal secretions, etc.
    Since the selected active components are highly effective, only a low amount is required to achieve the desired level of odor control in an absorbent article and in particular in female absorbent articles for a sufficient period of time. The active odor control appears to be efficient and sustainable over time.
    A further advantage associated with the hygiene article of the present invention is that the odor-controlled hygiene article provides a better feel and a more acceptable cleanliness level to the person wearing them. The users not only expect that the use of the hygiene article will not be seen, nor will they be smelled. Since the fresh scent is also associated with a sense of cleanliness, the need for hygiene items including an active odor control system that is effective while using the hygiene item becomes more mandatory. In a first attempt to overcome odors in hygiene items, fragrances are added to the product. However, this does not offer a sustainable solution to the problem of bad smells. During use, the amount of odors only increases and the addition of the fragrances cannot prevent this, thereby the masking effect becomes inefficient.
    In the present invention, the hygiene article is preferably disposable after a single use.
    In a preferred embodiment, the above-mentioned odor control composition is provided in a slow release system, such as an encapsulation system.
    In a preferred embodiment, the hygiene article is obtained by treating a topsheet, a backsheet and / or a layer placed between the topsheet and the backsheet of the hygiene article with a mixed solution of the antimicrobial agent and the organic zinc salt and / or the chelating agent and / or the physical agent.
    The present invention provides in a second aspect a method for manufacturing a hygiene article, preferably the hygiene article as described in this document, comprising the steps of providing (a) a hygiene article consisting of a topsheet, a backsheet and of one or more layers placed between the above-mentioned topsheet and the above-mentioned backsheet and (b) treatment of the article, one or more layers of the topsheet and / or the backsheet with an odor control composition of an antimicrobial agent selected from the group consisting of essential oils and / or active components of essential oils, and an organic zinc salt, and preferably a chelating agent and / or a physical agent. Preferably the article and / or layers are treated by spraying the article and / or the layer to be penetrated and / or immersing it with the above-mentioned composition. In the case that spraying is used to treat the article and / or layer, either one or both sides of the article and / or layer can be sprayed. For example, a layer can be, but is not limited to, a liquid-absorbent core or an acquisition and distribution layer or both.
    The present invention provides in an alternative aspect a method for manufacturing a hygiene article, preferably the hygiene article as described in this document, comprising the steps of (a) treating a topsheet, a backsheet and / or one or more layers , suitable for use in a hygiene article, with an odor control composition of an antimicrobial agent selected from the group consisting of essential oils and / or active components of essential oils, and an organic zinc salt, and preferably a chelating agent and / or a physical agent ; and (b) assembling a hygiene article consisting of one or more layers placed between a top sheet and a back sheet, at least one of the above-mentioned topsheet, backsheet or layers treated with the above-mentioned odor control composition. The layers are preferably treated by spraying, permeating and / or immersing the layer in the above-mentioned mixed solution. In case the spraying is used to treat the layer, one or both sides of the layer can be sprayed.
    For example, a layer can be, but is not limited to, a liquid-absorbent core or an acquisition and distribution layer or both.
    In other words, the hygiene article can first be partially or fully assembled with the various components of which it is assembled and then treated with the composition, or first one or more of the components can be treated with the composition and then the hygiene article can be assembled.
    The mixed solution can also be treated on components included by the layer. For example, it is conceivable to treat pulp fibers to be used in an absorbent core with the mixed solution prior to or during their mixing with super absorbent polymer particles to be used in the same absorbent core.
    Further, the method comprises the steps of providing an antimicrobial agent, providing an organic zinc salt, optionally mixing the above-mentioned antimicrobial agent and the above-mentioned organic zinc salt and applying the above-mentioned antimicrobial agent and the above-mentioned organic zinc salt to a hygiene article, preferably to a layer covered by the hygienic article. The antimicrobial agent consists of essential oils or active components. Further, the antimicrobial agent and the organic zinc salt can be provided separately and / or used separately or can be provided in a mixture or a composition, preferably a liquid mixture to be applied to the hygiene article.
    Furthermore, the method consists of the steps of: a. Providing a chelating agent; b. optionally mixing the above chelating agent with the antimicrobial agent and / or the organic zinc salt; c. applying the above-mentioned chelating agent to the above-mentioned hygiene article.
    Furthermore, the method consists of the steps of: a. Providing a physical agent; d. optionally mixing the above-mentioned physical agent with the above-mentioned antimicrobial agent and / or organic zinc salt and / or the above-mentioned chelating agent; e. applying the above-mentioned physical agent to the above-mentioned hygiene article.
    In a further aspect, the present invention provides the use of an antimicrobial agent consisting of essential oils and / or active ingredients thereof and an organic zinc salt, and / or a chelating agent, and / or a physical agent as an odor control composition.
    In a preferred embodiment, the hygiene article consists of a liquid-absorbent core, preferably wherein the article is a sanitary napkin, a panty liner or adult incontinence underpants.
    Although the present invention has been described with respect to preferred embodiments thereof, many changes and alternations can be made by a person having ordinary skill in the art without departing from the scope of this invention as defined by the appended claims .
    Example 1
    The products used for testing are panty liners, produced on a commercial line. The products are composed of a topsheet, with soft sides on the longitudinal edges, an absorption and distribution layer, a core consisting of a folded airlaid layer, which overlaps on the longitudinal edges, the above-mentioned core contains super absorbent particles that are attached to the inner part of the folded airlaid layer by means of spirals from a hot melt, an impenetrable backsheet layer, hot melt applied to the garment side of the backsheet, which is protected from dirt by a silicone paper. The core is composed of airlaid and super absorbent material. Airlaid used was 0.59g Buckeye airlaid (Vicell® 6721 DS W 50) and the super absorbent material used was 0.2g Sumitomo SAP (SA60B). To the product, 0.036 ml of the odor control solution (composition: Table 1) was added by dripping the solution on the upper surface of the product, in the center. Next, a mixture of contaminants (composition: Table 2) is added to the product at the center, typically for physical secretions, which are collected by feminine hygiene products.
    Table 1: Composition of the odor
    Table 2: Composition of pollutants
    One treated product as described above is placed in a closed glass container (volume: 750 ml). An untreated product, which contains only the pollutants and not the odor control solution, is placed in the same type of container. During the 24-hour period of testing, the glass containers are kept at room temperature (21 ° C ± 3 ° C).
    An odor evaluation of the samples is performed by a group of highly trained experts, perfumers and assessors, with more than 15 years of experience in the creation, evaluation and selection of fragrances. The odor neutralizing power of the present invention is determined by comparing the treated and untreated product after Oh, 1h, 3h, 6h, 12h and 24h of addition of the odor control solution and / or contaminants to the products. The recording is according to the values stated in Table 3. The results of the odor evaluation can be found in Table 4.
    Table 3: Odor neutralization evaluation scale
    Table 4: Odor analysis
    The above results show that the combined use of the antimicrobial agent, the organic zinc salt and the chelating agent leads to the desired level of odor control in an absorbent article and more particularly in female absorbent articles and this for a sufficient period of time. The active odor control also appears to be efficient and durable over time.
    Example 2
    The products used for testing, panty liners, are the same as those described in Example 1. Both a treated, including the odor control solution as described in Table 1, and an untreated product, without the solution from the odor control solution is subjected to a use test conducted by the external company Eurofins Marketing Research, Rue Pierre Adolphe Bobierre, 44300 Nantes , France. The treated product is produced on a commercial line, meaning that the odor control solution is added during the production process.
    The ultimate goal is to have a panty liner that offers good and durable protection against bad odors. For this, the odor control solution must be present in addition to the physical secretions caught by the product. In an optimal use of the product, the physical secretions enter the product in the center of the topsheet, go through the topsheet and reach the acquisition and distribution layer. Finally, the secretions are captured by the core where they are absorbed by the SAP particles and the cellulose fibers of the airlaid layer and remain there for the
    duration of use of the pantyliners. The odor control solution is preferably present in addition to the physical secretions as soon as they are collected by the core, since this is the most likely place for bad odor formation. This can be achieved by placing the odor control solution between acquisition and distribution layer and the core. The secretions are very likely to go along this site and incorporate the odor control solution, resulting in a mix of bodily secretions and odor control solution that is absorbed into the core. The placement of odor control solution in the core can also be considered, but special attention will be required not to activate the SAP particles.
    The odor control solution is continuously added to the airlaid G-core, in the center, on the user-facing side. The treated area is 130mm ± 3mm long and 15mm ± 3mm wide. The application is done by spraying. The odor control solution is sprayed on airlaid using a spray head with two nozzles, with a pressure of ± 0.4 bar.
    The results of the usage test confirm the effectiveness of the odor control solution. Overall, consumers separate the treated and untreated products based on the fact that the treated products offer significantly better protection against bad odors. The ultimate goal is achieved to have a panty liner that offers both good and durable protection against bad odors.
    权利要求:
    Claims (12)
    [1]
    CONCLUSIONS
    A hygiene article comprising an odor control composition comprising an antimicrobial agent selected from the group comprising essential oils and / or active components of essential oils, and an organic zinc salt.
    [2]
    A hygiene article according to claim 1, wherein the above-mentioned odor control composition comprises a chelating agent.
    [3]
    A hygiene article according to any of the preceding claims, wherein the above-mentioned odor control composition comprises a physical agent that operates according to the Sword maker principle, such as ionons.
    [4]
    The hygiene article according to any of the preceding claims, comprising a liquid-permeable top sheet, a liquid-impermeable backsheet and a liquid-absorbing core disposed between said liquid-permeable topsheet and said liquid-impermeable backsheet, and / or one or more acquisition and distribution layers between the above-mentioned liquid-permeable topsheet and the above-mentioned liquid-absorbing core, preferably wherein the above-mentioned odor control composition is placed between topsheet and backsheet, and is preferably comprised by the liquid-absorbing core and / or by one or more of the acquisition and distribution layers.
    [5]
    The hygiene article of any of the preceding claims, wherein said antimicrobial agent comprises any or any combination of the following: essential oils of the tea tree, cinnamon, citronella, artemisia, lemongrass, cedar, cloves, pine, bergamot, lemon, orange, thyme, cardamom and lavandino, and mixtures thereof and / or wherein the aforementioned antimicrobial agent comprises any or any combination of the following active components of essential oils: thymol, citronellal, citronellol, estragol , geranyl acetate, eucalyptol, eugenol, linalool, linalyl acetate, terpineol, cinnamaldehyde, cinnamic acid, citral, dihydromyrcenol, rose oxide, cineol and cajeputene.
    [6]
    The sanitary article according to any of the preceding claims, wherein said organic zinc salt is selected from zinc salts of carboxylic acids that have 2 to 30 carbon atoms, preferably wherein the carboxylic acid is an unsaturated hydroxylated fatty acid that has 8 to 18 carbon atoms, preferably said zinc salt comprises zinc ricinoleate.
    [7]
    The hygiene article according to any of the preceding claims, wherein said chelating agent is selected from the list of 2-Amino ethyl phosphonic acid (EPNA), Dimethyl methyl phosphonate (DMMP), 1-Hydroxy ethylidine-1,1-diphosphonic acid ( HEDP), Aminotris (methylene phosphonic acid) (TMPA), Ethylenediaminetetra (methylene phosphonic acid) (EDTMP), Tetrametylenediaminotetra (methylene phosphonic acid) (TDTMP), Hexametylenediaminotetra (methylene phosphonic acid) (HDTMP), Diethylenetylene phosphite (pentylene) phosphite EDTA), Phosphonobutane tricarboxylic acid (PBTC), N- (phosphonomethyl) iminodiacetic acid (PMIDA), 2-Carboxy ethyl phosphonic acid (CEPA), 2-Hydroxy phosphono carboxylic acid (HPCA), Amino-Tris (methylene phosphonic acid) (AMP), Sodium tripolyphosphate (STPP), Hydroxyethyl ethylene diamine triacetic acid (HEDTA), Dihydroxy ethyl ethylene diamine diacetic acid, Diehylene triamine pentacetic acid (DTPA), Triethylene tetramine hexaacetic acid (TTHA), Ethylenediamine di-hydroxyphenyl aside acid (EDDHA), Ethylene diamine di- (2-hydroxy-5-sulfophenylacetic) acid (EDDHSA), Ethylene diamine di-hydroxy-methylphenylacetic acid (EDDHMA), Ethylene diamine di- (5-carboxy-2-hydroxyphenyl) acid (EDDCHA ), Calcium disodium ethylene diamine tetraacetate (CaNa2EDTA), Nitrile triacetic acid (NTA), Propylene diamine tetraacetic acid (PDTA), Polyflavonoids, Sulfonates, Dimercaptosuccinic acid, Fulvine and humic acid, Lignosulfonic acid, Gluconic acid, Amino acids, Pololenac, Citron tartar, ascorbic, malic, fumaric, lactic acid or combinations thereof.
    [8]
    The hygiene article of any preceding claim, wherein said physical agent comprises ionones selected from the list of β-ionone, 1- (2,6,6-trimethyl-1-cyclohexenyl) pent-1-en-3- one; 4- (2,6,6-trimethyl-1-cyclohexen-1-yl) -3-buten-2-one; 4- (2,6,6-trimethyl-2-cyclohexen-1-yl) -3-buten-2-ones, 5- (2,6,6-trimethyl-2-cyclohexen-1-yl) 4-penten -3-one, (E) -4- (2,2-dimethyl-6-methylidenecyclohexyl) but-3-en-2-one; or a mixture thereof.
    [9]
    The hygiene article according to any of the preceding claims, obtained by treating a topsheet, a backsheet and / or a layer positioned between topsheet and backsheet of the hygiene article with the aforementioned odor control composition.
    [10]
    A method of manufacturing the hygiene article according to any of the preceding claims, comprising the steps of: a. Providing a hygiene article comprising a topsheet, a backsheet and one or more layers positioned between said topsheet and said backsheet; b. treating the article, one or more layers, the topsheet and / or the backsheet with an odor control composition of an antimicrobial agent selected from the group comprising essential oils and / or active components of essential oils, and an organic zinc salt, and at preferably a chelating agent and / or a physical agent.
    [11]
    A method of manufacturing the hygiene article according to any of claims 1-9, comprising the steps of: a. Treating a topsheet, a backsheet and / or one or more layers suitable for use in a hygiene article, with an odor control composition of an antimicrobial agent selected from the group comprising essential oils and / or active components of essential oils, and an organic zinc salt, and preferably a chelating agent and / or a physical agent; b. assembling a hygiene article comprising one or more layers positioned between a topsheet and a backsheet, wherein at least one of the above-mentioned topsheet, backsheet or layers is treated with the above-mentioned odor control composition.
    [12]
    Use of an antimicrobial agent comprising essential oils and / or active ingredients thereof and an organic zinc salt, and preferably a chelating agent and / or a physical agent, as an odor control composition for a hygiene article.
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    同族专利:
    公开号 | 公开日
    TR201904978T4|2019-05-21|
    BE1022338B1|2016-03-25|
    EP2915547A1|2015-09-09|
    ES2713009T3|2019-05-17|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    EP14157525.8|2014-03-03|
    EP14157525.8A|EP2915547A1|2014-03-03|2014-03-03|Hygiene article comprising an effective odour control system|TR2019/04978T| TR201904978T4|2014-03-03|2015-03-03|Hygiene article containing an effective odor control system.|
    PL15707390T| PL3113803T3|2014-03-03|2015-03-03|Hygiene article comprising an effective odour control system|
    US15/123,429| US10517983B2|2014-03-03|2015-03-03|Hygiene article comprising an effective odour control system|
    CN201580020770.5A| CN106232150A|2014-03-03|2015-03-03|Comprise the hygienic articles of effective odor-control system|
    CA2941476A| CA2941476A1|2014-03-03|2015-03-03|Hygiene article comprising an effective odour control system|
    AU2015226197A| AU2015226197B2|2014-03-03|2015-03-03|Hygiene article comprising an effective odour control system|
    EP15707390.9A| EP3113803B1|2014-03-03|2015-03-03|Hygiene article comprising an effective odour control system|
    ES15707390T| ES2713009T3|2014-03-03|2015-03-03|Hygienic article comprising an effective odor control system|
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