MX2008010587A - Fibrous structures comprising volatile agents - Google Patents

Abstract

Fibrous structures that comprise volatile agents, sanitary tissue products comprising such fibrous structures, articles of manufacture comprising such fibrous structures and processes for making same are provided. More particularly, fibrous structures that comprise unrestrained volatile agents, sanitary tissue products comprising such fibrous structures, articles of manufacture comprising such fibrous structures and processes for making same are provided.

Description

FIBROUS STRUCTURES THAT UNDERSTAND VOLATILE AGENTS FIELD OF THE INVENTION The present invention relates to fibrous structures comprising volatile agents, tissue paper hygienic products comprising such fibrous structures, processing articles comprising these fibrous structures and processes for carrying them out. More specifically, the present invention relates to fibrous structures comprising free volatile agents, tissue paper hygienic products comprising such fibrous structures, processing articles comprising these fibrous structures and processes for carrying them out.

BACKGROUND OF THE INVENTION The formulators of tissue paper hygiene products, especially facial towels, have unsuccessfully tried in the past to produce fibrous structures, especially tissue paper hygiene products, more specifically facial towels or processing articles comprising such fibrous structures, which are capable of providing to the consumers a recognizable olfactory benefit during its use. Attempts to meet the needs of consumers for a recognizable olfactory benefit of fibrous structures or processing articles comprising fibrous structures, have included associating fibrous structures or containers comprising them with volatile agents such as fragrances (perfumes), flavorings. , refreshing sensations or synthetic or natural menthol, which under certain conditions or in certain ways or at certain levels, provide an olfactory response to the consumer. The formulators have discovered that certain volatile agents, such as menthol, under certain conditions can provide a negative olfactory response to the consumer. In addition, formulators have discovered that certain volatile agents, such as menthol, under certain conditions can volatilize too quickly and, thus, provide little, if any, olfactory response to the consumer. Attempts to control the negative aspect associated with volatile agents, such as menthol, include previous industry executions where restricted volatile agents, such as those encapsulated or solids, were added onto or within the fibrous structures. Encapsulation of volatile agents ensures that they are released very slowly, if they are released, or that they are released only at relatively low volatile levels or under certain conditions, such as at elevated temperatures (this is not usually the case during the use of a user of the fibrous structure) or by friction with the user's skin or pressure of the user's hand that breaks the capsule and releases the volatile agent. These previous industry executions have failed miserably to provide consumers with a recognizable olfactory benefit. Other foregoing industry embodiments include the restriction of volatile agents by mixing the volatile agents, especially in solid or crystalline form, such as menthol or particulate powders, with a lotion composition and then applying the lotion or volatile agent composition on or within the fibrous structure. Once again, these executions failed to provide consumers with a recognizable olfactory benefit. Consequently, there continues to be a need for fibrous structures, especially tissue paper hygiene products, more specifically facial towels, which provide consumers with a recognizable olfactory benefit during use.

BRIEF DESCRIPTION OF THE INVENTION The present invention satisfies the needs described above by providing fibrous structures or tissue paper hygiene products comprising fibrous structures or processing articles that provide the consumer with a recognizable olfactory benefit, for example, an olfactory benefit when used by a consumer where the consumer The consumer perceives that his nasal passages are providing a greater passage of air through the nasal passages than before using the olfactory benefit or that which could have provided the fibrous structures of the preceding industry. In an example, the consumer feels that the fibrous structures help him to have the feeling that he is breathing better. In another example, he feels fibrous structures help him feel cared for, especially when he suffers from a cold. In yet another example, the consumer feels that the fibrous structures provide a relaxing comfort, especially when suffering from a cold. In yet another example, the consumer feels that the fibrous structures provide an attractive new benefit; specifically, an olfactory benefit. In an example of the present invention, a fibrous structure comprising a volatile agent is provided where the fibrous structure provides the user with an olfactory benefit where the user perceives that his nasal passages allow him to pass more air through them. than before using the olfactory benefit. In another example of the present invention, a fibrous structure comprising an unrestrained volatile agent is provided.

In yet another example of the present invention, a fibrous structure is provided which comprises an oil system which in turn comprises one or more essential oils and one or more volatile agents. In another example of the present invention, a fibrous structure comprising a lotion composition and one or more unrestrained volatile agents is provided. In another example of the present invention, an article of manufacture comprising a container and one or more fibrous structures according to the present invention is provided. In a further example of the present invention, a fibrous structure comprising at least 0.150% by weight of a volatile agent, especially an unrestrained volatile agent, is provided. In yet another example of the present invention, there is provided a single or multi-sheet sanitary product comprising a fibrous structure in accordance with the present invention. In yet another example of the present invention, a process is provided to realize a fibrous structure that gives the consumer a recognizable olfactory benefit with its use, where the consumer perceives that his nasal passages provide a greater passage of air than before using the olfactory benefit, the process comprises the step of associating a fibrous structure with a volatile agent. Accordingly, the present invention provides fibrous structures, tissue paper hygiene products or processing articles comprising fibrous structures that provide the consumer with a recognizable olfactory benefit, for example, an olfactory benefit which, when used by the user, he perceives that his or her nasal passages provide a better air passage than before using the benefit or what they could offer the fibrous structures of the preceding industry.

BRIEF DESCRIPTION OF THE FIGURES Figure 1 is a schematic representation of a fibrous structure in accordance with the present invention; Figure 2 is a cross-sectional view of Figure 1 taken along line 2-2; Figure 3 is a schematic representation of a processing article in accordance with the present invention.

DETAILED DESCRIPTION OF THE INVENTION As used herein, the term "fiber" refers to an elongate particulate whose apparent length is widely greater than its apparent diameter, i.e., has a length to diameter ratio of at least about 10. They are common the fibers having a non-circular cross section; the "diameter", in this case, can be considered to be the diameter of a circle having a cross-sectional area equal to the cross-sectional area of the fiber. More specifically, as used herein, "fiber" is related to paper fibers. The present invention contemplates the use of a variety of fibers for the manufacture of paper such as, for example, natural fibers or synthetic fibers, or any other suitable fiber, and any combination thereof. Natural papermaking fibers useful in the present invention include fibers of animal, mineral and vegetable origin, and mixtures thereof. The fibers of animal origin can be selected, for example, from the group comprising wool, silk and mixtures thereof. Fibers of vegetable origin can be derived, for example, from a plant selected from the group comprising wood, cotton, cotton linters, flax, sisal, abaca, hemp, hesperaloe, jute, bamboo, bagasse, kudzu, corn, sorghum, pumpkin , maguey, scourer and mixtures of these. Wood fibers; often referred to as wood pulps include chemical pulps, such as Kraft or sulphate pulps and sulphite pulps, and also mechanical and semimechanical pulps including, for example, crushed wood, thermomechanical pulp, chemomechanical pulp (CMP, for its acronym in English), pultru quimiotermomecánica (CT P, for its acronym in English) and neutral sulfite pulp (NSCS), for its acronym in English). However, chemical pulps may be preferred since they impart a superior tactile feel of softness to the sheets of tissue paper made therefrom. Pulps derived from deciduous trees (hereinafter referred to as "hardwood") and conifers (hereinafter referred to as "softwood") can be used. Hardwood and softwood fibers may be blended, or alternatively, deposited in layers to provide a layered or fibrous fibrous structure. U.S. Pat. no. 4,300,981 and no. 3,994,771 are incorporated herein by reference for the purpose of disclosing the stratification of hardwood and softwood fibers. Also applicable to the present invention are fibers derived from recycled paper, which may contain any or all of the aforementioned categories in addition to other non-fibrous materials such as fillers and adhesives used to facilitate the original manufacture of the paper. Wood pulp fibers can be short (characteristic of hardwood fibers) or long (characteristic of softwood fibers). Non-limiting examples of short fibers include fibers derived from a fiber source selected from the group comprising acacia, eucalyptus, maple, oak, poplar, birch, poplar, alder, ash, cherry, elm, hickory, poplar, gum, walnut, white acacia, sycamore, beech, catalpa, sassafras, melina, albizia, kadam and magnolia. Non-limiting examples of long fibers include fibers derived from pine, spruce, spruce, American larch, hemlock, cypress and cedar. Coniferous fibers obtained by the Kraft process and originating from more northern climates are preferred. They are often referred to as kraft pulps from northern conifers (NSK, for its acronym in English). The synthetic fibers may be selected from the group comprising wet spun fibers, dry spun fibers, spunbond fibers (including blown spun fibers), synthetic pulp fibers and mixtures thereof. For example, synthetic fibers can be composed of cellulose (often referred to as "rayon"); cellulose derivatives, such as esters, ether or nitroso derivatives; polyolefins (including polyethylene and polypropylene); polyesters (including polyethylene terephthalate); polyamides (often referred to as "nylon"); acrylics; non-cellulosic polymeric carbohydrates (such as starch, chitin and chitin derivatives, eg, chitosan); and mixtures of these. As used herein, "fibrous structure" means a structure composed of one or more fibers. Non-limiting examples for making fibrous structures include the known wet laying and air laying processes used for paper making. These processes, in general, include the steps of preparing a fiber composition, often referred to as a fiber slurry in wet, wet or dry laying processes, and then depositing a plurality of fibers on a wire or forming band. to form an embryonic fibrous structure, the drying or bonding of the fibers to form a fibrous structure or the further processing of the fibrous structure to form a finished fibrous structure. For example, in typical papermaking processes, the finished fibrous structure is that which is wound onto a reel at the end of the manufacturing process, but before its conversion into a tissue paper hygienic product.

The non-limiting types of fibrous structures according to the present invention include fibrous structures conventionally pressed with felt; fibrous structures densified with pattern; and high volume, uncompacted fibrous structures. The fibrous structures may have a homogeneous or multilayer structure (two or three or more layers); and the tissue paper hygiene products made therefrom can be single-ply or multi-ply. The fibrous structures can be further processed, for example, by stamping, calendering, folding or printing images thereon. The fibrous structures can be dried with passing air or by conventional drying. The fibrous structures may be creped or uncreated. The "tissue paper hygiene product" comprises one or more fibrous structures, transformed or not, but which nevertheless can be used as cleaning implements after urinating and defecating (toilet paper), for otorhinolaryngological discharges (disposable handkerchief or disposable handkerchiefs) and multi-functional absorbent and cleaning uses (wipes or absorbent linens). As used herein, "sheet" or "sheets" refers to a finished individual fibrous structure which, optionally, can be placed in a substantially contiguous, face-to-face relationship with other sheets to form a product of fibrous structure or a hygienic product of tissue paper finished with multiple sheets. It is also contemplated that a single fibrous structure can efficiently form two "sheets" or multiple "sheets", for example, by folding it over itself. "Stratified" as used herein refers to a fibrous structure comprising two or more layers of different fiber compositions (long, short, hardwood, softwood, wrinkled, linear). Stratified fibrous structures are well known in the industry as exemplified in U.S. Pat. num. 3,994,771, 4,300,981 and 4,166,001 and European Patent Publication no. 613 979 A1. Fibers, which are usually relatively long softwood fibers and relatively short hardwood fibers, are used in papermaking processes of multilayer fibrous structures. Multilayer fibrous structures suitable for the present invention can comprise at least two superimposed layers, an inner layer and at least one outer layer contiguous with the inner layer. Preferably, the multilayer fibrous structures comprise three superposed layers, an inner or central layer, and two outer layers, the inner layer being located between the two outer layers. The two outer layers comprise a preferably filamentous constituent of about 60% or more by weight of relatively short paper fibers having an average fiber length, L, less than about 1.5 mm. These short fibers for papermaking are generally hardwood fibers, preferably Kraft wood fibers, especially Acacia pulp fibers alone or in combination with other hard pulp fibers such as eucalyptus pulp fibers. The inner layer preferably comprises a filamentous constituent of about 60% or more by weight of relatively long paper fibers having an average fiber length, L, greater than or equal to about 1.5 mm. In general, these long paper fibers are softwood fibers, preferably softwood Kraft fibers. The compositions of the fibers forming the layers of the fibrous structure can comprise any mixture of fiber types. The fibrous structures of the present invention may comprise at least two or at least three or at least four or at least five layers. As used herein, "surface of a fibrous structure" refers to the portion of the fibrous structure that is exposed to the environment. In other words, is the portion of the fibrous structure that is not completely surrounded by other portions of that structure. "Surface contacting the user" as used herein means the portion of the fibrous structure or composition for the treatment of surfaces or lotion composition directly or indirectly present on the surface of the fibrous structure and exposed to the external environment. In other words, it is the surface formed by the fibrous structure that includes any composition for the surface treatment or lotion composition directly or indirectly present on the surface of the fibrous structure that comes into contact with an opposite surface, such as for example the skin of the user, when he uses it. For example, it is the surface formed by the fibrous structure that includes any composition for surface treatment or lotion composition directly or indirectly present on the surface of the fibrous structure that comes in contact with a user's skin when it cleanses their skin with the fibrous structure of the present invention. In one example, the surface in contact with the user, especially in the case of a textured fibrous structure or a structured fibrous structure, such as a fibrous structure dried with through air or a patterned fibrous structure, may include raised areas and areas with cavities of the fibrous structure. In the case of a fibrous structure dried with passant air and densified with pattern, the raised areas can be knuckles and the areas with cavities can be pads and vice versa. Accordingly, the knuckles may comprise, directly or indirectly, the composition for the surface treatment and the lotion composition, and the pads may be devoid of the composition for the surface treatment and the lotion composition, and vice versa, of so that when the skin of a user comes in contact with the fibrous structure, only the lotion composition comes into contact with the user's skin. Something similar happens with embossed fibrous structures, where the engraved areas may comprise, directly or indirectly, the composition for the treatment of surfaces and the lotion composition, and the non-engraved areas may be devoid of the composition for the treatment. of surfaces and the composition of lotion, and vice versa. The contact surface with the user can be present in the fibrous structure or in the tissue paper hygienic product before the user uses it or can be created or formed before or during the use of the fibrous structure or the tissue paper hygienic product , for example, when the user applies pressure on that fibrous structure or tissue paper hygienic product as the skin of the user comes into contact with the fibrous structure or tissue paper hygienic product. The term "recognizable olfactory benefit of the consumer" as used herein means that a consumer (ie, a user) of the fibrous structure is able to recognize an olfactory benefit when using the fibrous structure. The olfactory benefit is any response in the olfactory senses of the consumer that is different to the initial state of the olfactory senses of the consumer before using the fibrous structure. During use, the consumer will locate the fibrous structure very close to the orifices of the nasal passages and inhale. In one example, the olfactory benefit provided by the fibrous structures or tissue paper hygiene products or processing articles of the present invention is greater than that olfactory benefit provided by any fibrous structure or tissue tissue hygienic product of preceding industry. In another example, the consumer may have the nasal passages swollen, obstructed or partially obstructed (for example, when a consumer suffers from allergies or symptoms of stuffy nose / cold), when the recognizable olfactory benefit of the consumer is determined. In other words, in order to determine whether the consumer receives a recognizable olfactory benefit, especially one that is greater than the fibrous structures of the preceding industry could have provided, the consumer must be suffering from partial or near total obstruction of the nasal passages. The term "Restricted volatile agent" as used herein means a volatile agent having the form, either pure or in combination with other materials, so that the volatile agent, when associated with (on or in) a fibrous structure , can not provide the user with a recognizable olfactory benefit with the use of fibrous structure, especially a benefit that is greater than that provided by fibrous structures of preceding industry. Non-limiting examples of restricted volatile agents include volatile agents that are solids, volatile agents that are encapsulated by material that prevents / inhibits them from providing a recognizable olfactory benefit to the consumer, or volatile agents that are mixed with other materials to form a composition , as a lotion composition comprising one or more volatile agents, wherein the composition prevents / inhibits volatile agents from providing an olfactory benefit recognizable by the consumer. The term "unrestrained volatile agent" as used herein means a volatile agent having the form, either pure or in combination with other materials, so that the volatile agent, when associated with a fibrous structure (on or in of the same), can provide the user with a recognizable olfactory benefit with the use of the fibrous structure, especially an olfactory benefit that is greater than that provided by fibrous structures of preceding industry. Non-limiting examples of unrestrained volatile agents include volatile agents in liquid form and volatile agents that are dissolved within an oil system, such as an essential oil system. In one example, a fibrous structure of the present invention can comprise a lotion composition comprising a volatile agent, such that the volatile agent is restricted, and the fibrous structure can further include an unrestrained volatile agent. "Association" as used herein means to carry an agent, such as a volatile agent, very close to or in direct contact with a substrate, such as the surface of a container or a fibrous structure, so that the olfactory benefit recognizable by a consumer be provided to the consumer during the use of the container or fibrous structure. Non-limiting examples of association include spraying, dipping, brushing, printing, slot extrusion and the like. All percentages and proportions are calculated by weight, unless otherwise indicated. All percentages and proportions are calculated based on the total composition, unless otherwise indicated. Unless otherwise specified, all levels of the component or composition are expressed in reference to the active level of that component or composition, and are exclusive of impurities, for example, residual solvents or by-products, which may be present. in commercially available sources.

Fibrous structure The fibrous structure of the present invention may comprise a volatile agent or a lotion composition or a surface softening composition. When the fibrous structure comprises a lotion composition and a surface softening composition, the surface softening composition can be placed between the lotion composition, which forms a user interface, and the surface of the fibrous structure. The lotion composition and the surface softening composition may be recorded per phase so that the user's contact surface comprises the lotion composition regions and the fibrous structure regions.

When the fibrous structure comprises a lotion composition without a surface softener, the lotion composition is in contact with the surface of the fibrous structure. The contact surface of the user may be entirely composed of the lotion composition or may be composed of regions of lotion composition and regions of fibrous structure. When the fibrous structure comprises a surface softening composition without a lotion composition, the surface softening composition is in contact with the surface of the fibrous structure. The contact surface of the user may be entirely composed of the surface softening composition or may be composed of regions of surface softening composition and regions of fibrous structure. In an example of the present invention, the fibrous structure comprises a lotion composition. Without intending to be restricted by theoretical considerations, it is believed that the lotion composition facilitates the migration of a volatile agent into or through the fibrous structure when the volatile agent comes into contact with the lotion composition in the fibrous structure. In another example, the volatile agent is evenly distributed throughout the fibrous structure or through the surface of the fibrous structure or the user's contact surface of the fibrous structure. In another example, the volatile agent is extractable from the fibrous structure. When a lotion composition is also present on / on the fibrous surface, the volatile agent, at least a portion thereof, may be separate and differentiated from the lotion composition. In other words, the volatile agent can be a non-restricted volatile agent. There may also be other optional ingredients present in or on the fibrous structure. These optional ingredients may include additional essential oils and other ingredients such as cedar leaf oil, nutmeg oil, turpentine oil, thymol, wet strength agents, dry strength agents, antiviral agents, including organic acids, perfumes, especially those of long-term or long-lasting, antibacterial, opacifying agents, humidifying agents, lint-resisting agents, absorbency-increasing agents, polyol polyesters, anti-migration agents, polyhydroxyl plasticizers and mixtures thereof. Said optional ingredients can be added to the fibrous layer, to the embryonic fibrous web or to the fibrous structure. Optional ingredients may be present in the fibrous structures at any level based on the dry weight of the fibrous structure. Optional ingredients may be present in the fibrous structures at a concentration of from about 0.001 to about 50% or from about 0.001 to about 20% or from about 0.01 to about 5% or from about 0.03 to about 3% or from about 0.1 to about 1.0% by weight, based on a dry fibrous structure.

Volatile Agent The volatile agent of the present invention may comprise a material that volatilizes sufficiently to provide a recognizable olfactory benefit to the consumer (i.e., to the user) once it inhales the volatile agent. In one example, the volatile agent provides the consumer with a recognizable olfactory benefit under practically ambient conditions, for example at a temperature of about 73 ° F ± 4 ° F (about 23 ° C ± 2.2 ° C). In another example, a volatile agent suitable for use in fibrous structures of the present invention includes a volatile agent that allows a consumer, upon inhaling the volatile agent, to perceive that his nasal passages allow a greater flow of air through them. or, in other words, that the consumer perceives that his nasal passages are opening. The volatile agent can be natural or synthetic. The volatile agent of the present invention can be an essential oil. An essential oil is a volatile oil.

An essential oil usually has the characteristic odor or flavor of the plant from which it was obtained. The volatile agent of the present invention can cause a cooling sensation. A refreshing sensation is a material that causes a cold sensation in the (human) skin of the user. Non-limiting examples of appropriate cooling sensations may include isopropyl-N-2,3-trimethylbutyramide or isopulegol. In one example of the present invention, the volatile agent is lacking in any isopropyl-N-2,3-trimethylbutyramide and isopulegol. Non-limiting examples of suitable volatile agents include menthol (such as L-menthol), camphor, eucalyptus oil, lavender oil (as the Bulgarian lavender) and mixtures thereof. In an example of the present invention, the volatile agent thereof comprises menthol. Menthol can be in liquid form. In another example of the present invention, the volatile agent thereof comprises camphor. In another example of the present invention, the volatile agent thereof comprises eucalyptus oil. In yet another example of the present invention, the volatile agent thereof comprises two or more menthol, camphor and eucalyptus oils. Menthol can be in liquid form.

Two or more volatile agents can be mixed together to form a homogeneous composition of volatile agents. The volatile agent may be present in a container, such as on an interior surface of the container, housing one or more fibrous structures of the present invention. If present in the container, the volatile agent can be transferred to one or more fibrous structures within the container. The level of the volatile agent present in the container can be of any appropriate level so that one or more fibrous structures within the container provide the consumer with a recognizable olfactory benefit when using it. In one example, the volatile agent, especially in liquid form, is applied to an inner surface of the container so that one or more fibrous structures can contact the volatile agent and, thereby, allow the transfer of the volatile agent to one or more structures fibrous. The volatile agent may be present within the empty volume of the container housing one or more fibrous structures of the present invention. If present within the void volume of the container, the volatile agent may be present in the void volume to a level such that the recognizable olfactory benefit is provided to the consumer. The volatile agent may be present on or within the fibrous structure of the present invention. When present on or within the fibrous structure, it may comprise at least 0.150% or at least 0.175% or at least 0.185% or at least 0.2% or at least 0.3% or at least 0.4% or at least 0.5% by weight of the fibrous structure. In an example of the present invention, the fibrous structure comprises approximately 0.185% by weight of the volatile agent. In another example of the present invention, the fibrous structure comprises approximately 0.555% by weight of the volatile agent.

In yet another example, a fibrous structure according to the present invention comprises at least 0.01 g or at least 0.05 g or at least 0.1 g approximately 5 g approximately 3 goa approximately 2 g approximately 1.3 goa approximately 1.1 g dry weight of the fibrous structure of a volatile agent.

Lotion Composition The fibrous structure herein can comprise a lotion composition. The lotion composition may comprise oils or emollients or immobilizing waxes or oils. In one example, the lotion composition comprises from about 10% to about 90% or from about 30% to about 90% or from about 40% to about 90% or from about 40% to about 85%, of an oil or an emollient. In another example, the lotion composition comprises from about 10% to about 50% or from about 15% to about 45% or from about 20% to about 40%, of an immobilizing agent. In another example, the lotion composition comprises from about 0% to about 60% or from about 5% to about 50% or from about 5% to about 40%, of petrolatum. The lotion compositions may be heterogeneous. They may contain solids, gel structures, polymeric material, a multiplicity of phases (such as oily and aqueous phases) or emulsified components. It may be difficult to precisely determine the melting temperature of the lotion composition, ie to determine the transition temperature between the liquid form, the quasi-liquid form, the quasi-solid form and the solid form. The terms melting temperature, melting point, transition point and transition temperature are used interchangeably herein and have the same meaning. The lotion compositions can be semi-solid and of high viscosity so that they practically do not flow without activation during the life of the product or of the gel structures. The lotion compositions can be fluidized by shearing or they can change their viscosity around the temperature of the skin enough to allow transfer and easy dispersion on the skin of a user. The lotion compositions may be in the form of an emulsion or dispersion. The lotion composition can be a transferable lotion composition. In one example of a lotion composition, its water content is less than about 20%, or less than 10%, or less than 5% or less than 0.5%. In another example, the lotion composition may have a solids content of less than about 15%, or less than about 25%, or less than about 30% or less than about 40% to about 100%, or about 95%, or approximately 90% or approximately 80%. A non-limiting example of a suitable lotion composition of the present invention comprises a chemical softening agent, such as an emollient, which softens, soothes, provides greater elasticity, coats, lubricates or moistens the skin. The lotion composition can alleviate, moisturize or lubricate a user's skin. The lotion composition may comprise an oil or an emollient. Non-limiting examples of suitable oils or emollients include glycols (such as propylene glycol or glycerin), polyglycols (such as triethylene glycol), petrolatum, fatty acids, fatty alcohols, fatty alcohol ethoxylates, fatty alcohol esters and fatty alcohol ethers, ethoxylates. fatty acid, fatty acid amides, fatty acid esters, hydrocarbon oils (such as mineral oil), squalane, fluorinated emollients, silicone oil (such as dimethicone) and mixtures thereof. Non-limiting examples of emollients useful in the present invention may be petroleum-based emollients, fatty acid ester type, alkyl ethoxylate type, or mixtures of these materials. Suitable emollients based on petroleum derivatives include those hydrocarbons or mixtures of hydrocarbons with a chain length of 16 to 32 carbon atoms. Petroleum-derived hydrocarbons having this chain length include petrolatum (also known as "mineral wax", "petrolatum" and "petroleum jelly"). The petrolatum generally includes more viscous mixtures of hydrocarbons having from 16 to 32 carbon atoms. A suitable petrolatum is that marketed by Witco, Corp., Greenwich, Conn. As White Protopet® 1 S. Suitable fatty acid ester emollients include those derived from Ci2-C28 long-chain fatty acids, such as saturated Ci6-C22 fatty acids, and short-chain monohydric alcohols from Ci-C28. C8, such as C C3 monohydric alcohols. Non-limiting examples of fatty acid ester emollients include methyl palmitate, methyl stearate, isopropyl laurate, isopropyl myristate, isopropyl palmitate and ethylhexyl palmitate. Suitable fatty acid ester emollients can also be derived from esters of long chain fatty alcohols (Ci2-C28, such as C2-C16) and shorter chain fatty acids, for example, lactic acid, such as lactate lauryl and cetyl lactate. Suitable fatty acid ester emollients include those derived from Ci2 and C2s fatty acids, such as the saturated fatty acids of Ci6 and C22, and the short-chain monohydric alcohols (from C to C8 or from C ^). to C3). Representative examples of such esters include methyl palmitate, methyl stearate, isopropyl laurate, isopropyl myristate, isopropyl palmitate and ethylhexyl palmitate. Suitable fatty acid ester emollients can also be derived from esters of long-chain fatty alcohols (from C12 to C28 or from C12 to C16) and short-chain fatty acids, for example, lactic acid, such as lauryl lactate and cetyl lactate. Suitable emollients of the alkyl ethoxylate type include the C 2 -C 8 fatty alcohol ethoxylates with an average of from 3 to 30 oxyethylene units, such as from about 4 to about 23. Non-limiting examples of said alkyl ethoxylates include laureth- 3 (a lauryl ethoxylate with an average of 3 oxyethylene units), laureth-23 (a lauryl ethoxylate with an average of 23 oxyethylene units), ceteth-10 (acetyl ethoxylate with an average of 10 oxyethylene units) , esteareth-2 (a stearyl ethoxylate with an average of 2 oxyethylene units) and steareth-10 (a stearyl ethoxylate with an average of 10 oxyethylene units). These alkyl ethoxylate emollients are generally used in combination with petroleum base emollients, such as petrolatum, in a weight ratio of alkyl ethoxylate emollient to a petroleum base emollient of about 1: 1. to about 1: 3, preferably from about 1: 1.5 to about 1: 2.5. The lotion compositions herein may include an "immobilizing agent", so called because it is believed to act to prevent migration of the emollient, so that it can remain mainly on the surface of the fibrous structure to which it is applied. to provide the maximum softening benefit as well as being available to transfer to the user's skin. Immobilizing agents suitable for the present invention can include polyhydroxy fatty acid esters, polyhydroxy fatty acid amides, and mixtures thereof. To be useful as immobilizing agents, the polyhydroxy ester or amide entity must have at least two free hydroxy groups. It is believed that these free hydroxy groups are those that are co-crosslinked through the hydrogen bonds with the cellulosic fibers of the tissue paper web to which the lotion composition is applied and homo-crosslink, also through of hydrogen bonds, ester or amide hydroxy groups, thereby trapping and immobilizing other components in the lotion matrix. Some non-limiting examples of suitable esters and amides will have three or more free hydroxy groups in the polyhydroxy entity and, in general, are non-ionic in nature. Due to the possible skin sensitivity of those users of articles to which the lotion composition is applied, these esters and amides should be relatively mild and non-irritating to the skin. The polyhydroxy fatty acid esters suitable for use in the present invention will have the formula: wherein R is a C5-C31 hydrocarbyl group, such as a C7-C19 straight-chain alkyl or alkenyl or straight-chain C9-C7 alkyl or alkenyl or straight-chain Cu-C17 alkyl or alkenyl or mixtures of these; Y is a polyhydroxyhydrocarbyl moiety having a hydrocarbyl chain with at least 2 free hydroxyls directly connected to the chain; and n is at least 1. Suitable Y groups can be derived from polyols, such as glycerol, pentaerythritol; sugars, such as raffinose, maltodextrose, galactose, sucrose, glucose, xylose, fructose, maltose, lactose, mannose and erythrose; sugar alcohols, such as erythritol, xylitol, malitol, mannitol and sorbitol; and anhydrides of sugar alcohols, such as sorbitan. A class of polyhydroxy fatty acid esters suitable for use in the present invention comprise some sorbitan esters, such as the sorbitan esters of saturated C 16 -C 22 fatty acids. Immobilizing agents include agents that can prevent migration of the emollient into the fibrous structure so that the emollient remains primarily on the surface of the fibrous structure of the tissue paper hygienic product, or of the composition for surface treatment on a surface of the fibrous structure, or of the tissue paper hygienic product, and facilitating the transfer of the lotion composition to the skin of a user. The immobilizing agents can operate as viscosity increasing agents or gelling agents. Non-limiting examples of suitable immobilizing agents include waxes (such as ceresin wax, ozokerite, microcrystalline wax, petroleum waxes, fisher tropsh waxes, silicone waxes, paraffin waxes), fatty alcohols (such as cetyl alcohol, cetearyl, cetearyl or stearyl), fatty acids and their salts (such as metal salts of stearic acid), mono- and polyhydroxy fatty acid esters, mono- and polyhydroxy fatty acid amides, silica and silica derivatives, gelling agents, thickeners and mixtures thereof. In one example, the lotion composition contains at least one immobilizing agent and an emollient. In a further example, the composition of the lotion may comprise one or more volatile agents. It has been unexpectedly discovered that a fibrous structure comprising a lotion composition and a volatile agent, especially an unrestrained volatile agent, provides an olfactory benefit to the consumer of such a fibrous structure for a longer time than that which does not have a lotion composition. but it has a non-restricted volatile agent. In other words, it has been found that the lotion composition facilitates the retention of the olfactory benefit provided by an unrestrained volatile agent present in a fibrous structure.

Skin beneficial agent One or more skin beneficial agents may also be included in the lotion composition of the present invention. If a skin beneficial agent is included in the lotion composition, this agent can be found in the lotion composition at levels of from about 0.5% to about 80%, or from 0.5% to about 70%, or about 5% at about 60%, by weight of the lotion. Non-limiting examples of skin beneficial agents include zinc oxide, vitamins, such as vitamin B3 or vitamin E, sucrose esters of fatty acids, such as Sefose 1618S (commercially available from Procter &Gamble Chemicals), antiviral agents, anti-inflammatory compounds, lipids, inorganic anions, inorganic cations, protease inhibitors, sequestering agents, extracts of chamomile, aloe vera, calendula officinalis, alpha-bisabolol, vitamin E acetate and mixtures thereof. Some non-limiting examples of suitable skin beneficial agents include fats, fatty acids, fatty acid esters, fatty alcohols, triglycerides, phospholipids, mineral oils, essential oils, sterols, sterol esters, emollients, waxes, humectants and combinations thereof. .

Other ingredients in the lotion composition Other optional ingredients that can be included in the lotion composition include vehicles, perfumes, especially long-lasting or long-lasting ones, antibacterial actives, antiviral actives, disinfectants, pharmaceutical actives, film formers, deodorants, opacifiers , astringents and solvents.

Vehicle As used herein, a "vehicle" is a material that can be used to dilute or emulsify agents that form the surface treatment composition or lotion composition to produce a dispersion / emulsion. Suitable materials for use as a carrier of the present invention include hydroxyl-functional liquids, including, but not limited to, water.

Surface Softening Agent Surface softening agents include any chemical ingredient that imparts a lubricious feel to the fibrous structure or tissue paper hygienic product of the present invention and which is present on a surface of the fibrous structure at a higher concentration than in the rest of the fibrous structure. For illustrative purposes only, non-limiting examples of suitable surface softening agents include basic waxes, such as silicone gels of beeswax and paraffin, and also petrolatum and more complex lubricants and emollients, such as quaternary ammonium compounds having chains long hydrocarbyl (C8 - C22), functional silicones and compounds having long hydrocarbyl chains (C8 - C22) with functional groups, such as amines, acids, alcohols and esters.

Manufacturing process As shown in Figures 1 and 2, in one example, a tissue paper hygienic product, such as a face towel, of the present invention comprises a fibrous structure 12. The fibrous structure 12 comprises a lotion composition. and a volatile agent 16. The fibrous structure 12 comprises one or more fibers 18. In one example, a process for manufacturing a tissue paper hygienic product 10 according to the present invention comprises the step to provide a fibrous structure 12; by applying a lotion composition 14 to the surface of the fibrous structure 12; and by applying a volatile agent 16 to the fibrous structure 12 or to the lotion composition 14. Another non-limiting example of an appropriate method for applying the lotion composition 14 or volatile agent 16 to a fibrous structure 12 includes spraying the composition of lotion 14 or volatile agent 16 on one or more surfaces of the fibrous structure 12. Lotion composition 14 or volatile agent 16 can be applied to fibrous structure 12 at any point or points during papermaking or conversion process for performing the fibrous structure 12. In one example, the lotion composition 14 is applied to the fibrous structure 12 prior to the application of the volatile agent 16 to said fibrous structure 12. Other non-limiting examples of an appropriate method for contacting one or more surfaces the fibrous structure 12 with a lotion composition 14 or a volatile agent 16 includes dipping, brushing, extruding, such as extrusion of slit, or printing of the lotion composition 14 or volatile agent 16 on one or more surfaces of the fibrous structure 12. In an example, a stack of one or more fibrous structures 12 can be oriented so that the volatile agent 16 can initially contacting the edges of the fibrous structure 16 after application, such as by spraying, of the volatile agent 16. The volatile agent 16 may then migrate substantially on the surface or along the fibrous structure 12, especially if the fibrous structure 12 comprises a lotion composition 14. The stack of fibrous structures can have any orientation, such as interleaved, non-interleaved, "C" fold, "Z" fold, tri-fold, four fold and the like. As shown in Figure 3, in one example, an article of manufacture 20. As a box containing facial towels, it comprises a container 22. The container 22 comprises one or more interior surfaces 24 that define an interior volume. One or more tissue paper hygienic products 10 are housed within the interior volume. The interior volume space that is not being occupied by the tissue paper hygiene products 10 is called empty volume 26 or empty space. The container 22 may have an empty form (ready to be bent or modeled within a substantially complete container) or in a complete or substantially complete container defining an empty volume 26. The container 22 may comprise any suitable material that is known to those with experience in the industry. Non-limiting examples of such suitable materials include paper, paper plate, cardboard, corrugated paper or plastic. Non-limiting examples of suitable materials for the container include injection molded plastic, thermoformed plastic, blow molded plastic, flexible film, and combinations thereof. In one example, the container 22 may be manufactured from a vapor or liquid impermeable material. In another example, container 22 can be treated by a material to make the container vapor or liquid impermeable. A non-limiting example of the material that can be used to treat container 22 is a wax. The container 22 may comprise paper impregnated with wax. One or more surfaces 24 of the container 22 may comprise a metallized polyester. The metallized polyester can be visible on the inner and outer surface of the container 22. In other examples, the material used to make the container 22 can be a laminate or it can be coated with another material that aids the inhibitor or prevents the release of the volatile agent 16 of the container. In one example, the article of manufacture 20 may be completely or substantially enveloped by a shrink wrap or plastic for shrink packaging to assist in inhibiting or preventing the release of the volatile agent 16 from the container 22. In another example, the container 22 may be placed within the container. an external container (not shown) for forming an article of manufacture according to the present invention. Non-limiting examples include a plastic tube inside a cardboard box or a wrapping container inside a plastic tube. In another example, the container 22 may be structurally designed to inhibit or prevent the release of the volatile agent 16, in any form, to the external environment surrounding the container 22. One way of doing this is by designing the fins of the container 22 to form an almost hermetic seal when closing. Another way is to use a material for the container 22 that is impervious to the volatile agent 16. Still another way is to use sealing techniques or materials that when used on the container 22 during the formation of the container 22, more effectively seal the container 22 Non-limiting examples of suitable sealing techniques include heat sealing, RF sealing or IR sealing. A volatile agent 16 can be applied to one or more surfaces of the container 22. The volatile agent 16 can be volatilized to become present at a measurable level within the void volume 26. In another example, the volatile agent 16 can be transferred, as a liquid to a liquid. one or more fibrous structures 12 by contacting one or more of these structures within the container 22. A non-limiting example of a suitable method for applying the volatile agent 16 to one or more surfaces 24 of the container 22 includes applying an adhesive, such as a hot-melt adhesive, to one or more of the surfaces 24. The adhesive can fulfill the function of adhering one or more sides of the container to each other. In one example, the adhesive may be in the form of a sheet or patch that can be adhered to the surface of the container 22. Another unrestricted example of an appropriate method for applying the volatile agent 16 to one or more surfaces 24 of the container 22, includes spraying the volatile agent 16 onto one or more surfaces 24 of the container 22. The container 22 may be in its empty form or may be in its complete or substantially complete form at the time of the spray application. Other non-limiting examples of a suitable method for contacting one or more surfaces 24 of the container 22 with a volatile agent 16, include immersion, brushing, extrusion, such as slot extrusion, or printing the volatile agent 16 within a more surfaces 24 of the container 22. A non-limiting additional example of a suitable method for applying the volatile agent 16 to one or more surfaces 24 of the container 22, includes applying said agent with any suitable application method to a substrate, such as a sample of fabric, sheet of paper, plastic film, so that the substrate can then be attached to one or more surfaces 24 of the container 22.

Example 1 - Volatile agent composition A non-limiting example of a volatile agent composition suitable for application to a fibrous structure is carried out as indicated below. Combine 23.50% w / w of Chinese camphor, 30.00% w / w of l-menthol, 2.00% w / w of Bulgarian lavender oil C & A and 44.50% w / w of eucalyptus oil in a mixing bowl in the order which was indicated above. Stir for 30 minutes or until the Chinese camphor and l-menthol are completely dissolved. Store at room temperature, approximately 73 ° F ± 4 ° F (approximately 23 ° C ± 2.2 ° C). Example 2 - Fibrous structure comprising a volatile agent composition of Example 1 A non-limiting example of a fibrous structure comprising a volatile agent composition is carried out as indicated below. A combination of fibrous structures are folded into a "C" fold configuration. One end of the "C" crease configuration is sprayed with 0.75 g of volatile agent composition by means of any suitable spray technique, such as a pressure atomizer bottle or a spray atomizer bottle. The sprayed combination of fibrous structures can then be reinserted into the empty volume of a container. The container can then be closed to preserve and house the combination of fibrous structures.

Example 3 - Fibrous structure comprising a volatile agent composition of Example 1 A non-limiting example of a fibrous structure comprising a volatile agent composition is carried out as indicated below. A combination of fibrous structures are folded into a "C" fold configuration. One end of the "C" fold configuration is dosed through a pipette with 0.75 g of the volatile agent composition. The metered combination of the fibrous structures can then be inserted into the empty volume of a container. The container can then be closed to retain and accommodate the combination of fibrous structures. Table I below shows the classification of the average product (on a scale of five points: 0 = Low, 25 = Regular, 50 = Good, 75 = Very good, 100 = Excellent) of a fibrous structure of the present invention used during 2 weeks for a representative panel of 273 consumers.

Table I Percent more than the average product classification All documents cited in the Detailed Description of the invention are incorporated, in their relevant part, as reference herein; the mention of any document should not be construed as an admission that it corresponds to a preceding industry with respect to the present invention. To the extent that any meaning or definition of a term in this written document contradicts any meaning or definition of the term in a document incorporated by reference, the meaning or definition assigned to the term in this written document shall govern.

The dimensions and values set forth herein are not to be construed as strictly limited to the exact numerical values mentioned. Instead, unless otherwise specified, each of these dimensions will mean both the aforementioned value and a functionally equivalent range that encompasses that value. For example, a dimension expressed as "40 mm" will be understood as "approximately 40 mm". While particular embodiments of the present invention have been illustrated and described, it will be apparent to those skilled in the industry that other changes and modifications may be made without departing from the spirit and scope of the invention. It has been intended, therefore, to cover in the appended claims all changes and modifications that are within the scope of the invention.

Claims (10)

1 . A fibrous structure comprising a volatile agent characterized in that the fibrous structure provides a user with an olfactory benefit after the use thereof, where the user perceives that his nasal passages allow a greater passage of air than before using the olfactory benefit.

2. The fibrous structure according to claim 1 further characterized in that the volatile agent comprises a non-restricted volatile agent.

3. The fibrous structure according to any of the preceding claims, further characterized in that the volatile agent is present within an oil system, preferably wherein the oil system comprises one or more essential oils.

4. The fibrous structure according to any of the preceding claims, further characterized in that the fibrous structure further comprises a lotion composition, preferably consisting of at least a portion of the volatile agent, which is separated from the lotion composition.

5. The fibrous structure according to any of the preceding claims, further characterized in that the volatile agent is extractable from the fibrous structure.

6. The fibrous structure according to any of the preceding claims, further characterized in that the volatile agent is evenly distributed throughout the fibrous structure. The fibrous structure according to any of the preceding claims, further characterized in that the volatile agent is selected from the group consisting of: menthol, camphor, eucalyptus oil, lavender oil and mixtures thereof. 8. The fibrous structure according to any of the preceding claims, further characterized in that the volatile agent is present at a level of at least 0.150% by weight of the fibrous structure. 9. A single or multi-sheet tissue paper hygienic product comprising a fibrous structure according to any of the preceding claims. 10. A manufacturing article comprising a container and one or more tissue paper hygiene products according to claim 9 housed within the container. 1. A process for manufacturing a fibrous structure according to any of claims 1 to 8, further characterized in that the process comprises the step of associating the fibrous structure with a volatile agent. The process according to claim 11, further characterized in that the process further comprises the application of a lotion composition to one or more surfaces of the fibrous structure. 13. The process according to claim 12, further characterized in that the volatile agent is applied to the fibrous structure after the lotion composition has been applied to one or more surfaces of the fibrous structure. 14. A process for making an article of manufacture according to claim 10, the process comprises the steps of: a. a container is provided; b. one or more fibrous structures are located within the container so that the container accommodates one or more of the fibrous structures; c. the vessel or fibrous structures are associated with a volatile agent so that the volatile agent provides the consumer with a recognizable olfactory benefit with its use.