MXPA06012194A - Fibrous structures comprising a transferable agent. - Google Patents

Abstract

Fibrous structures comprising a transferable agent, single- or multi-ply sanitary tissue products made therefrom and processes for making same are provided.

Description

of the implement used. The degree of irritation and inflammation is also highly related to the number of times the nose and the areas around it must be in contact with an implement; the use of an implement that is relatively weak or relatively non-absorbent will require a greater number of contacts with the face than will require the use of a stronger or more absorbent implement, which is capable of containing a greater amount of nasal discharge. A large number of previous apts have been made to correct the problem of irritation and inflammation caused by blowing and wiping the nose. Examples of these previous apts include the addition of lotions or chemical compositions beneficial to the skin in the fibrous structures. However, it has been found that in those previous apts it has not been possible to transfer the sufficient amount, as a clinically beneficial amount or efficiently transfer those lotions or chemical compositions to the skin of a user to provide clinical benefits. Accordingly, there is a need to have fibrous structures that contain a transferable agent associated with the fibrous structure so that sufficient or effective amount of the agent is transferred to provide an expected benefit, such as the improvement of a user's irritated skin.

BRIEF DESCRIPTION OF THE INVENTION The present invention meets the needs described above by providing a fibrous structure comprising an agent transferable to an opposing surface in an amount sufficient or effective to provide an expected benefit. In an example of the present invention a fibrous structure is provided which comprises a transferable agent associated therewith so that when the user uses it, more than about 6%, 7%, 9%, 11%, 15% or 17% in The weight of the transferable agent is transferred from the fibrous structure to a surface. In another example of the present invention there is provided a single or multi-sheet tissue paper hygienic product comprising a fibrous structure according to the present invention. In another example of the present invention there is provided a process for treating a fibrous structure comprising the step of associating a transferable agent with a fibrous structure that requires treatment so that when the user uses it, more than about 6% by weight of the agent Transferable is transferred from the fibrous structure to a surface. Accordingly, the present invention provides fibrous structures comprising a transferable agent, products made therefrom and processes for their manufacture.

BRIEF DESCRIPTION OF THE FIGURES Figure 1 is a schematic representation of a fibrous structure according to the present invention; Figure 2 is a cross-sectional view of Figure 1 taken along line 2-2; Figure 3 is a cross-sectional view of another example of a fibrous structure according to the present invention; Figure 4 is a cross-sectional view of another example of a fibrous structure according to the present invention; Figure 5 is a cross-sectional view of another example of a fibrous structure according to the present invention; Figure 6 is a schematic representation of another example of a fibrous structure according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION Definitions As used herein, the term "fiber" means an elongated particulate whose apparent length greatly exceeds its apparent diameter, i.e., a length-to-diameter ratio of at least about 10. Fibers that are not common are common. they have a 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" refers to paper fibers. The present invention contemplates the use of a variety of papermaking fibers, such as, for example, natural fibers or synthetic fibers, or any other suitable fiber, and any combination thereof. The 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, kuzu, corn, sorghum, guaje, maguey, scourer and mixtures of these. Wood fibers; often called wood pulps include chemical pulps, such as Kraft (sulfate) and sulfite pulps, and also mechanical and semimechanical pulps including, for example, crushed wood, thermomechanical pulp, chemomechanical pulp (CP), acronyms in English), pultru quimiotermomecánica (CTMP, 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 also called "hardwood") and coniferous trees (hereinafter also called "softwood") can be used. Hardwood and softwood fibers can be blended, or alternatively, layered to provide a layered or layered material. U.S. Pat. no. 4,300,981 and no. 3,994,771 are incorporated herein by reference for purposes of describing the stratification of hardwood and softwood fibers. Also useful are fibers derived from recycled paper which may contain one or all of the mentioned fiber categories and other non-fibrous materials such as fillers and adhesives that facilitate the original papermaking process. 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, American walnut, 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, pinabete, 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, melt spun fibers (including melt blown), synthetic pulp fibers and mixtures thereof. For example, synthetic fibers may 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 wet laying and air laying processes used for paper making. These processes typically include the steps of preparing a fiber composition, often referred to as a fiber slurry in wet, wet or dry laying processes and the subsequent depositing of a plurality of fibers onto a forming wire or band to form a embryonic fibrous structure, the drying and / or joining of the fibers to form a fibrous structure and / or the subsequent 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. A "tissue paper hygiene product" consists of one or more fibrous structures, converted or not and serves as an implement for cleaning after urination and defecation (toilet paper), to clean the otorhinolaryngological secretions (wipes or disposable tissues) and for absorbent and cleaning multifunctional uses (absorbent towels). In one example, a multi-sheet disposable handkerchief containing a lotion composition and having an approximate gauge of 0.1 mm to 0.4 mm according to the present invention is provided. 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. 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, it is the portion of the fibrous structure that is not completely surrounded by other portions of that structure. As used herein, "user interface" refers to the portion of the fibrous structure, transferable agent, composition for surface treatment or lotion composition directly or indirectly present on the surface of the fibrous structure exposed to the environment . In other words, 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 an opposite surface when the user uses it. . For example, it is the surface formed by the fibrous structure that includes any composition for the treatment of surfaces or composition in lotion directly or indirectly present on the surface of the fibrous structure that comes in contact with the skin of a user when he cleans his skin with the fibrous structure of the present invention. In an example, the contact surface with the user, especially in the case of a textured or structured fibrous structure, such as a fibrous structure dried with through or stamped air may include the raised areas and the cavity areas 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 contain, directly or indirectly, the lotion composition and the pads may contain the composition for surface treatment and vice versa so that when a user's skin comes into contact with the fibrous structure, the composition in Lotion and composition for surface treatment come into contact with the user's skin. Something similar happens with the patterned fibrous structures, where the patterned areas may contain, directly or indirectly, the lotion composition and the non-patterned areas may contain the composition for surface treatment and vice versa. In one example, the user interface has regions of the size necessary for two or more different regions (comprising different compositions) to be exposed to an opposite surface during use. In other words, a surface of a fibrous structure that is substantially covered on a microscopic scale, but completely covered on a macroscopic scale by a lotion composition so that a user's skin only comes in contact with that composition does not have two different regions on the surface of contact with the user. In one example, the user interface may consist of an outer layer of a multilayer fibrous structure wherein the outer layer may contain a composition for surface treatment and / or a lotion composition.

The contact surface with the user may be present in the fibrous structure or in the tissue paper hygienic product before the user uses it or may be created or formed before or during use, for example, when the user applies pressure to that tissue. structure or product as your skin comes in contact with the structure or product. All percentages and proportions are calculated by weight, unless otherwise indicated. All percentages and proportions are calculated based on the total composition, unless otherwise specified. 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.

The fibrous structure The transferable agent of the present invention may be comprised in a composition for surface treatment, in a lotion composition or may be present directly or indirectly on or within the fibrous structure. Figure 1 is a schematic representation of a fibrous structure in accordance with the present invention; As shown in Figure 1, the fibrous structure 10 comprises a contact surface with the user 12 comprising a first region 14 and a second region 6. The contact surface with the user 12 is associated with a surface of the fibrous structure 18. As shown, the surface of the fibrous structure 18 may consist of one or more fibers 20. The first region 14 and the second region 16 may be present on the surface of the fibrous structure 18 (associated therewith). When the first region 14 and / or the second region 16 are present on the surface of the fibrous structure 18, one or both of them may be in the form of a continuous or substantially continuous network and / or in a plurality of different areas ( often also known as "islands"). The first region 14 and / or the second region 16 present on the surface of the fibrous structure 18 may be in contact with or cover all or substantially the entire surface area of the surface of the fibrous structure 18. In one example, the first region 8 is in contact with or covers all or substantially all of the surface surface area of the fibrous structure 18. The first region 14 and / or the second region 16 present on the fibrous structure 18 may be in contact or cover a smaller or substantially smaller area to the total surface area of the surface of the fibrous structure 18. In one example, the second region 16 is in contact with or covers an area smaller or substantially smaller than the total surface area of the surface of the fibrous structure 18. When any of the regions it does not cover practically the entire surface area of the surface of the fibrous structure 18, that region may be in the form of a plurality of different areas. stintas As shown in Figure 2, the first region 14 is in contact with or covers substantially the entire surface area of the fibrous structure 18 and the second region 16 is in contact with or covers an area substantially less than the total surface area of the structure. surface of the fibrous structure 18. The first region 14 may be in the form of a continuous or substantially continuous network and the second region 16 may be in the form of a plurality of distinct areas dispersed through the continuous or substantially continuous network of the first region 14.

Any region can be in contact with the other region. As shown in Figure 3, the second region 16 is in contact with the first region 14 so that the first region 14 is positioned between the second region 16 and the surface of the fibrous structure 18. The second region 16 may be present. in an area smaller than the total surface area of the first region 14. The second region 16 may be present on the first region 14 in the form of one or more different areas. As illustrated in Figures 1, 4 and 5, some portions of the second region 16 are in contact with the first region 14 so that both the second region 16 and the first region 14 are in direct contact with the surface of the fibrous structure 18. Also as shown in Figures 4 and 5, a portion of the second region 16 is not in contact with the first region 14. Figures 4 and 5 also show that an area substantially smaller than the total surface area of the fibrous structure 8 is in contact with the first region 14 and second region 16 or is covered by them. In these examples, the user interface 12 includes a third region, namely, the surface of the fibrous structure 18, in addition to the first region 14 and the second region 16. Figure 6 is a schematic representation of another example of a fibrous structure according to the present invention. The fibrous structure 10 comprises a contact surface with the user 12 having a first region 14, a second region 16 and a third region, in this case, the surface of the fibrous structure 18 comprising one or more fibers 20. The first region 14 includes a composition for surface treatment. The second region 16 includes a lotion composition. In one example, the composition for the surface treatment and / or the lotion composition may be present on the surface of the fibrous structure 18 and its concentration by weight is greater than when they are within the fibrous structure. In another example, the composition for the surface treatment and / or the lotion composition may be present within the fibrous structure and its concentration by weight is greater than when they are on the surface of the fibrous structure 18. The composition for the treatment of surfaces present on the surface of the covering structure can cover an approximate surface area of more than 10%, 30% or 50% up to 100%, 90% or 85%. The lotion composition present on the fibrous structure can cover an approximate surface area of more than 1%, 5%, 10% or 20 to 99%, 90%, 75% or 50%. In one example, the surface area of the fibrous structure and / or tissue paper hygienic product contains more than about 10%, and / or more than about 20%, and / or more than about 50%, and / or more than about 70%, and / or more than about 80% and / or more than about 90% of the composition for surface treatment and from 0 to about 80%, and / or from 0 to about 50%, and / or from 0 to about 30%, and / or from 0 to about 20% and / or from 0 to about 10% of the lotion composition. When the surface area of the fibrous structure and / or tissue paper hygienic product contains 0% of the lotion composition, the lotion may be within the fibrous structure and / or the tissue paper hygienic product, for example, between two sheets of the tissue paper hygienic product. In another example, the surface area of the contact surface with the user comprises from about 20% to about 97% and / or from about 50% to about 97% and / or from about 80% to about 97% of the composition for the surface treatment and from about 3% to about 80% and / or from about 3% to about 50% and / or from about 3% to about 20% and / or from about 3% to about 15% of the composition in lotion. The coverage of the surface area of the fibrous structure and / or tissue paper hygienic product can be determined by the coverage test method of the surface area described herein. Within each region there may be differential concentrations and / or differential elevations (protrusions from the surface of the fibrous structure) of their respective compositions. The surface area of contact with the user may contain more than about 10%, 30% or 50% up to about 100%, 90% or 85% of the composition for surface treatment and / or more than about 1%, 5%, 10% or 20% up to 99%, 90%, 75% or 50% of the composition in lotion. A user interface containing the composition for surface treatment combined with the lotion composition exhibits a greater smoothness than a user interface comprising only one of those compositions. The contact surface with the user may be flat or may have protrusions containing the composition for surface treatment and / or the lotion composition so that that surface exhibits differential elevations. In another example, the contact surface with the user can have areas of greater or lesser concentration and / or areas of greater or lesser elevation of the lotion composition and areas of the composition for surface treatment. The composition for surface treatment and lotion composition may contain one or more similar or identical ingredients, while the user interface consists of a first region comprising a different composition (at least one ingredient differs in the composition). composition) to a composition present in a second region. 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. Fibrous structures can be creped. The approximate basis weight of the fibrous structures and / or tissue paper hygiene products of the present invention may be from about 10 g / m2 to about 120 g / m2, and / or from about 12 g / m2 to about 80 g / m2. m2 and / or from approximately 14 g / m2 to approximately 65 g / m2. The approximate total dry tensile strength of the fibrous structures and / or tissue paper hygiene products of the present invention may be more than about 59 g / cm (150 g / in), and / or about 78 g / cm. cm (200 g / in) and / or approximately 98 g / cm (250 g / in) at approximately 1182 g / cm (3000 g / in), and / or approximately 984 g / cm (2500 g / in), and / or to about 787 g / cm (2000 g / in), and / or to about 394 g / cm (1000 g / in) and / or to about 335 g / cm (850 g / in). The approximate density of the fibrous structure and / or tissue paper hygiene products of the present invention may be less than about 0.60 g / cm 3, and / or less than about 0.30 g / cm 3, and / or less than about 0.20 g / cm 3. , and / or less than about 0.10 g / cm3, and / or less than about 0.07 g / cm3 and / or less than about 0.05 g / cm3, and / or from about 0.01 g / cm3 to about 0.20 g / cm3y / or from about 0.02 g / cm3 to about 0.10 g / cm3. The fibrous structures and / or tissue paper hygiene products of the present invention may exhibit an average fluff value of greater than about 0.1, and / or greater than about 0.5, and / or greater than about 0.10, and / or greater than about 1.5, and / or greater than about 2.0 and / or greater than about 3.0 to about 20, and / or about 15, and / or about 13, and / or about 10, and / or about 8. Transferable Agent The fibrous structure of the present invention may comprise less than about 50%, and / or less than about 40%, and / or less than about 30%, and / or less than about 20%, and / or less than about 10%, and / or less than about 5%, to about 0.01% and / or to about 0.1% and / or to about 1% by weight of the transferable agent. The transferable agent can be an anti-inflammatory compound, lipid, inorganic anions, inorganic cations, protease inhibitors, sequestering agents and mixtures thereof. In one example, the association of the transferable agent with the contact surface with the user is less than about 10 g / m2 and / or less than about 8 g / m2 and / or less than about 6 g / m2 at about 0.5 g. / m2 and / or 1.0 g / m2 and / or approximately 1.5 g / m2. In one example, the transferable agent can be any substance that has a greater affinity for oil than water or that is beneficial to the health of the skin when it interacts directly with it. Suitable examples of these benefits include, but are not limited to, improving skin barrier function and improving skin moisturization and nutrition. Non-limiting examples of suitable transferable agents include fatty acids, fatty acid esters, fatty alcohols, triglycerides, phospholipids, mineral oils, essential oils, sterols, sterol esters, emollients, waxes, and combinations thereof. The transferable agent may be added individually or may be included in a lotion composition and / or a surface treatment composition. A composition in a distributed lotion comprising a transferable agent is Vaseline® intensive care lotion (Chesebrough-Pond's, Inc.) Non-limiting examples of fats and oils useful as transferable agents include apricot seed oil, avocado oil, babassu oil, borage seed oil, butter, triglyceride of C.sub.12 -C acid. sub.18, camellia oil, canola oil, caprylic / capric / lauric triglyceride, caprylic / capric / linoleic triglyceride, caprylic / capric / stearic triglyceride, caprylic / capric triglyceride, carrot oil, cashew nut oil, castor oil, cherry seed oil, chia oil, cocoa butter, coconut oil, cod liver oil, corn germ oil, corn oil, cottonseed oil, triglycerides C.sub.10 - C .sub.18, egg oil, epoxidized soybean oil, evening primrose oil, glyceryl and triacetyl hydroxystearate, glyceryl and triacetyl ricinoleate, glycosphingos lipids, grapeseed oil, hazelnut oil, human placental lipids s, hybrid safflower oil, hybrid sunflower oil, hydrogenated castor oil, hydrogenated castor oil laurate, hydrogenated coconut oil, hydrogenated cottonseed oil, triglycerides C.sub.12 -C.sub.18 hydrogenated, Hydrogenated fish oil, hydrogenated lard, hydrogenated shad oil, hydrogenated mink oil, hydrogenated "orange roughy" oil, hydrogenated palm kernel oil, hydrogenated palm oil, hydrogenated peanut oil, shark liver oil hydrogenated, hydrogenated soybean oil, hydrogenated tallow, hydrogenated vegetable oil, lanolin and lanolin derivatives, lard, lauric / palmitic / oleic triglyceride, lesquerella oil, linseed oil, macadamia oil, maleated soybean oil, meadowfoam seeds, tarpon oil, mink oil, moringa oil, mortierella oil, handyman oil, oleic / linoleic triglyceride, oleic triglyceride / pal mythical / lauric / myristic / linoleic, oleostearin, olive-pomace oil, olive oil, ominous lipids, "orange roughy" oil, palm kernel oil, palm oil, peach-kernel oil, peanut oil, penjawar djambi oil, pentadesma butter, phospholipids, pistachio oil, placental lipids, rapeseed oil, rice bran oil, safflower oil, sesame oil, shark liver oil, shea butter, soybean oil, sphingolipids, sunflower oil, sweet almond oil, resin oil, tallow, tribehenin, tricaprin, tricaprylin, triheptanoin, trihydroxymethoxystearin, trihydroxystearin, triisononanoin, triisostearin, trilaine, trilinolein, trilinolenin, trimyristin, trioctanoin, triolein, tripalmitin, trisebazine, tristearin , triundecanoína, vegetable oil, walnut oil, wheat bran lipids, wheat germ oil and zedoaria oil. Non-limiting examples of suitable fatty acids as transferable agents include arachidonic acid, arachidonic acid, behenic acid, capric acid, caproic acid, caprylic acid, coconut acid, corn acid, cottonseed acid, hydrogenated coconut acid, acid hydrogenated shad, hydrogenated tallow acid, hydroxystearic acid, isostearic acid, lauric acid, linoleic acid, linolenic acid, flaxseed acid, myristic acid, oleic acid, palmitic acid, palm kernel acid, pelargonic acid, ricinoleic acid, soy acid , stearic acid, resin oil acid, tallow acid, undecanoic acid, undecylenic acid and wheat germ acid. Non-limiting examples of suitable fatty alcohols as transferable agents include behenyl alcohol, alcohols C.sub.9 -C.sub.11, alcohols C.sub.12 -C.sub.13, alcohols C.sub.12 -C. sub.15, alcohols C.sub.12 -C.sub.16, alcohols C.sub.14 -C.sub.15, caprylic alcohol, cetearyl alcohol, cetyl alcohol, coconut alcohol, decyl alcohol, hydrogenated tallow alcohol , lauryl alcohol, myristyl alcohol, oleyl alcohol, palm alcohol, palm kernel alcohol, stearyl alcohol, tallow alcohol and tridecyl alcohol. Non-limiting examples of suitable essential oils as transferable agents include anise oil, Melissa peppermint oil, basil oil, velvet monarda oil (Monarda Fistulosa), bergamot oil, birch oil, bitter almond oil, bitter orange, calendula oil, California nutmeg oil, caraway oil, cardamom oil, chamomile oil, cinnamon oil, wild sage oil, clove leaf oil, clove oil, coriander oil, oil of cypress, eucalyptus oil, fennel oil, gardenia oil, geranium oil, ginger oil, grapefruit oil, hops oil, hyptis oil, false indigo oil, jasmine oil, juniper oil, oil kiwi, bay oil, lavender oil, lemongrass oil, lemon oil, linden oil, levistic oil, tangerine orange oil, chamomile oil, musk rose oil, walnut oil scada, frankincense, orange blossom oil, orange oil, patchouli oil, pennyr oil, peppermint oil, pine oil, pine tar oil, rose hip oil, rosemary oil, rose oil, oil rude, sage oil, elderberry oil, sandalwood oil, sassafras oil, white spruce oil, spearmint oil, sweet marjoram oil, sweet violet oil, tar oil, tea tree oil, oil Thyme, wild mint oil, yarrow oil and Ylang Ylang oil. Non-limiting examples of sterols and sterile derivatives suitable as transferable agents include sterols which have a tail at position 17 and do not have polar groups, for example, cholesterol, sitosterol, stigmasterol and ergosterol and also cholesterol / lanosterol esters of C10 -C30, cholecalciferol, cholesteryl hydroxystearate, cholesteryl isostearate, cholesteryl stearate, 7-dehydrocholesterol, dihydrocholesterol, dihydrocholesteryl octyl decanoate, dihydrolanosterol, dihydrolanosteril octadecanoate, ergocalciferoi, resin oil sterol, soy sterol acetate, lanasterol, sterol soy, avocado sterol, avocadin (derived from avocado oil) and sterol esters. Non-limiting examples of emollients suitable as transferable agents include mineral oil, mineral jelly, petrolatum, cosmetic esters, fatty esters, glyceryl esters, alkoxylated carboxylic acids, alkoxylated alcohols, fatty alcohols, lanolin and its derivatives, petrolatum-based oils, silicones, fats, hydrogenated vegetable oils and polyhydroxylated esters. Non-limiting examples of waxes suitable as transferable agents include natural and synthetic waxes such as myrtle wax, beeswax, C30 alkyldimethicone, candelilla wax, carnauba, ceresin, cetyl esters, hydrogenated cottonseed oil, jojoba oil hydrogenated, hydrogenated jojoba wax, hydrogenated microcrystalline wax, hydrogenated rice bran wax, Japanese wax, jojoba butter, jojoba esters, jojoba wax, lanolin wax, microcrystalline wax, mink wax, montanic acid wax, wax of montana, ouricuri wax, ozocerite, paraffin wax, beeswax PEG-6, beeswax PEG-8, rice bran wax, shellac wax, bead waste wax, stearyl dimethicone, synthetic beeswax, wax of synthetic candelilla, synthetic carnauba wax, synthetic Japanese wax, synthetic jojoba wax and synthetic wax. In one example, the wax comprises carnauba, ceresin, cetyl esters, microcrystalline wax, mountain wax, ozokerite and synthetic wax. Non-limiting examples of humectants suitable as transferable agents include acetamide MEA, aloe vera gel, arginine PCA, chitosan PCA, copper PCA, corn glycerides, dimethyl imidazolidinone, fructose, glucamine, glucose, glucose glutamate, glucuronic acid, glutamic acid, glycereth-7, glycereth-12, glycereth-20, glycereth-26, glycerin, honey, hydrogenated honey, starch hydrolyzate hydrogenated, hydrolyzed corn starch, lactamide MEA, lactic acid, lysine lactose PCA, mannitol, methyl gluceth-10, methyl gluceth-20, PCA, lactamide PEG-2, propylene glycol PEG-10, condensate polyamino sugar, potassium PCA, propylene glycol , propylene glycol citrate, saccharide hydrosylate, saccharide isomerate, sodium aspartate, sodium lactate, sodium PCA, sorbitol and TEA-Lactate.

Composition for the treatment of surfaces For the purposes of the present invention, a composition for the treatment of surfaces is one that improves the tactile sensation of a surface of a fibrous structure perceived by a user holding a fibrous structure and / or hygienic product of Tissue paper that comprises the fibrous structure and rubs it on your skin. This perceptible tactile smoothness can be characterized in a limiting way by friction, flexibility and softness as well as by subjective properties, such as, for example, the sensation of lubricity, velvety, silky or softness similar to that of a flannel. The composition for surface treatment can be transferable. In general, the composition is practically non-transferable. The composition for surface treatment can increase or decrease the surface friction of the surface of the fibrous structure, especially the surface of the fibrous structure in contact with the user. Generally, the surface friction of the surface of the fibrous structure containing the composition for surface treatment will be less than that of a surface of the fibrous structure that does not contain that composition. The wetting tension of the surface treatment composition may be less than or equal to the surface tension of the lotion composition to minimize dispersion of the lotion composition that comes into contact with the surface treatment composition. The surface treatment composition contains an agent for surface treatment. When applied in a fibrous structure, the composition for surface treatment may comprise at least about 0.1%, and / or at least 0.5%, and / or at least about 1%, and / or at least about 3%, and / or at least about 5% to about 90%, and / or to about 80%, and / or to about 70%, and / or to about 50%, and / or to about 40% by weight of the surface treatment agent. In one example, the composition for surface treatment comprises from about 5% to about 40% of the surface treatment agent, by weight. The composition for the surface treatment present in the fibrous structure and / or tissue paper hygienic product comprising the fibrous structure of the present invention may comprise at least about 0.01%, and / or at least about 0.05%, and / or less about 0.1% of the total basis weight of the agent for surface treatment. In one example, the fibrous structure and / or the tissue paper hygienic product may comprise from about 0.01% to about 20%, and / or from about 0.05% to about 15%, and / or from about 0.1% to about 10% , and / or from about 0.01% to about 5%, and / or from about 0.1% to about 2% of the total basis weight of the composition for surface treatment. In one example, the surface treatment composition of the present invention is a microemulsion of a surface treatment agent (e.g., aminofunctional polydimethylsiloxane) in water. In that example, the approximate concentration of the agent for surface treatment within the composition for surface treatment can be from 3% to 60%, from 4% to 50% and from 5% to 40%. Non-limiting examples of these microemulsions are distributed by Wacker Chemie, Dow Corning and General Electric Silicones. Non-limiting examples of suitable surface treatment agents can be selected from the group comprising: polymers such as polyethylene and its derivatives, hydrocarbons, waxes, oils, silicones (polysiloxanes), quaternary ammonium compounds, fluorocarbons, substituted C10-C22 alkanes , substituted C 0 -C 22 alkenes, especially fatty alcohol derivatives and fatty acids (such as fatty acid amides), condensates of fatty acids and condensates of fatty alcohols), polyols, derivatives of polyols (such as esters and ethers), sugar derivatives (such as ethers and esters), polyglycols (such as polyethylene glycol) and mixtures thereof. The composition for surface treatment may comprise additional ingredients, for example, a vehicle as described below which may be present in the fibrous structure or in the tissue paper hygienic product comprising it. In one example, the surface treatment composition may contain an agent for the treatment of surfaces and a vehicle such as water to facilitate the application of the agent on the surface of the fibrous structure.

Lotion Composition The lotion composition may comprise oils, emollients, waxes (any or all of which may be transferable agents) and / or immobilizing agents. In one example, the lotion composition contains about 10% to about 90% of a liquid oil and / or emollient, from about 10% to about 50% of the immobilizing agent and / or from about 0% to about 60% of petrolatum and Optionally, the remaining percentage consists of a vehicle. The lotion compositions may be heterogeneous. They may contain solids, gel structures, polymeric material, multiple phases (such as oil phase and water) and 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. In this document, the terms "melting temperature", "melting point", "transition point" and "transition temperature" are interchangeable and have the same meaning. The lotion compositions can be semi-solid and high viscosity so that they practically do not flow without activation during the life of the product or the gel structures. The lotion compositions may be fluidized by friction or may change their viscosity around the temperature of the skin enough to allow easy transfer and dispersion on the skin of a user. The lotion compositions may be in the form of an emulsion or dispersion. In an example of a lotion composition, its water content is up to about 20%, 10%, 5% or 0.5%. In another example, the lotion composition may comprise at least about 15%, and / or at least about 25%, and / or at least about 30%, and / or at least about 40% to about 100%, and / or about 95%, and / or about 90%, and / or about 80% solids. Non-limiting examples of suitable oils and emollients include glycols (such as propylene glycol and / or glycerin), polyglycols (such as triethylene glycol), petrolatum, fatty acids, fatty alcohols, fatty alcohol ethoxylates, esters and ethers of fatty alcohols, acid ethoxylates fatty acids, amides and esters of fatty acids, hydrocarbon oils (such as mineral oil), squalene, fluorinated emollients, silicone oil (such as dimethicone) and mixtures of these. Immobilizing agents include agents that can prevent the migration of the emollient into the fibrous structure so that it remains primarily on the surface of the fibrous structure, the tissue paper hygienic product and / or the surface treatment composition. a surface of the fibrous structure and / or the tissue paper hygienic product and facilitating the transfer of the lotion composition to the skin of a user. The immobilizing agents can function 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 tropsch waxes, silicone waxes, paraffin waxes), fatty alcohols (such as cetyl and stearyl alcohol), fatty acids and its salts (such as metal salts of stearic acid), mono- and polyhydroxy fatty acid esters, mono- and polyhydroxy fatty acid amides, silica and its derivatives, gelling agents, thickeners and mixtures thereof. In one example, the lotion composition contains at least one immobilizing agent and an emollient. In one example, the lotion composition contains a sucrose ester of a fatty acid. The lotion composition can be added to a fibrous structure at any stage of the paper manufacturing or conversion process. In one example, the lotion composition is added to the fibrous structure during the conversion process. When it contains a transferable agent it is considered that the lotion composition is transferable. A lotion composition contains at least one transferable agent capable of transferring during use to an opposite surface, like the skin of a user. In an example, at least 0.1% of the transferable lotion present on the contact surface with the user is transferred to the wearer's skin during use. The amount of composition transferred to the skin of a user during use can be determined by known methods, for example, by applying the adhesive tape method (with Tegaderm tapes distributed by 3M) 3 times on the skin, after the user used the fibrous structure and / or tissue paper hygienic product and analyzing the tapes to detect the presence of the transferable composition or of a component of the transferable composition assuming that all components thereof are transferred equally. Other optional components that can be included in the lotion composition include vehicles, perfumes, in particular lasting or lasting perfumes, antibacterial actives, antiviral actives, disinfectants, pharmaceutical actives, film formers, deodorants, opacifiers, astringents, solvents, agents that impart a refreshing and similar feeling. Specific examples of components of the lotion composition include camphor, thymol, menthol, extracts of chamomile, aloe vera, calendula officinalis, alpha bisalbolol, vitamin E, vitamin E acetate. In one example lotion composition of the present invention, the lotion composition has a melting point greater than about 35 ° C. For example, the lotion composition should be subjected to an approximate temperature of more than 35 ° C before a significant amount (for example, more than 30%, 40%, 50% or 60%) of it is founded. This can be expressed as: 1 2 2/1 1 is equal to or greater than about 1, and / or equal to or greater than about 4, and / or equal to or greater than about 9; and / or (2) 2 2 is equal to or greater than about 30 J / g, 40 J / g and / or equal to or greater than about 60J / g (especially if 1 1 is 0) where: 1 1 is the energy that is required to raise the temperature of the lotion composition from 15 ° C to 35 ° C; 2 is the energy that is required to raise the temperature of the 35 ° C lotion composition to the temperature at which the lotion composition becomes completely liquid or at which no further melting occurs below 100 ° C in the case that the composition in lotion contains components that melt only above 100 ° C. ?? it is measured by differential scanning calorimetry (DSC) using standard parameters known to a person of skill in the industry. The data of this technique is obtained using a Thwing Albert DSC 2920 instrument calibrated with indium as a standard metal, with an initial melting temperature of 156.6 ° C and a heat of fusion of 6.80 calories per gram, as reported in the literature. The sample is first heated to 00 ° C with a speed of 10 ° C / min., Equilibrated for 5 minutes at 100 ° C, cooled to -30 ° C at a speed of -2.5 ° C / min., Balanced to -30 ° C for 5 minutes and then heated from -30 ° C to +100 ° C at a speed of 2.5 ° C / min. to evaluate the fusion behavior. For the determination of ?? 1 and ?? 2 the final heating ramp is used. ?? 1 is the area between the curve of the DSC and the initial values between 5 ° C and 35 ° C and ?? 2 is the area between the DSC curve and the initial values between 35Â ° C and the temperature at which the Lotion composition is completely liquid or where no further melting occurs below 100 ° C when the composition contains components that only melt above 100 ° C. By way of example, a lotion composition of the present invention containing about 40% stearyl alcohol, about 30% mineral oil and about 30% petrolatum has a value of ?? 2 /? 1 > 9 and a value of ?? 2 > 60 J / g. In one example, the approximate minimum concentration of the lotion composition on the surface of the fibrous structure and / or tissue paper hygienic product and / or on the surface treatment composition present on the surface of the fibrous structure and / or tissue paper hygienic product is 0.5 g / m2, .0 g / m2 or 1.5 g / m2 per contact surface with the user. In another example, the approximate minimum concentration of the lotion composition on the surface of the fibrous structure and / or tissue paper hygienic product and / or on the surface treatment composition present on the surface of the fibrous structure and / or tissue paper hygienic product is about 0.5 g / m2, and / or about 1.0 g / m2 and / or about 1.5 g / m2a about 10 g / mV ° to about 8 g / m2, and / or about 6 g / m2 per area of contact with the user.

VEHICLE As used herein, a "vehicle" is a material that can be used to dilute or emulsify agents that form the composition for surface treatment or lotion composition to produce a dispersion / emulsion. A vehicle can be present in the composition for the surface treatment and / or in the lotion composition, in particular during the application of the composition in the fibrous structure. A vehicle can dissolve a component (true solution or micellar solution) or the component can be dispersed through the vehicle (dispersion or emulsion). The vehicle of a suspension or emulsion is generally its continuous phase. This means that other components of the dispersion or emulsion are dispersed in the vehicle at the molecular level or as separate particles. Suitable materials for use as the carrier of the present invention include hydroxyl functional liquids that include but are not limited to water. In one example, the lotion composition contains up to about 20%, 10%, 5% or 0.5% w / w of a vehicle, such as water. In one example, the surface treatment composition contains more than about 50%, 70%, 85%, 95% or 98% w / w of a vehicle, such as water.

Process aids In the lotion compositions of the present invention process assistants may also be used. Non-limiting examples of suitable processing aids include brighteners such as TINOPAL CBS-X®, distributed by C1BA-GEIGY of Greensboro, N.C.

Non-limiting examples of lotion compositions Example 1 of lotion composition: Distributed by Procter &Gamble Chemicals, Cincinnati, USA. Distributed by Crompton Corporation The composition in lotion has a melting point of approximately 51 ° C and an approximate melting viscosity at 56 ° C of 17 mPa.s measured at a friction rate of 0.1 l / s. The mineral oil used in this formulation has a viscosity of around 21 mPa.s at 20 ° C. The lotion composition can be applied on one or both surfaces of the fibrous structure with a total aggregate level of 3.6 g / m2, 4.2 g / m2, 6 g / m2, 7.2 g / m2, 8.4 g / m and 1.4 g / m2.

Processes for treating fibrous structures and / or tissue paper hygiene products to. Transferable agent and / or composition for surface treatment: To apply the transferable agent or composition for the treatment of surfaces in the fibrous structure and / or tissue paper hygienic product and / or in the lotion composition present on a surface of that structure and / or product can be used any suitable application method by contact or non-contact, such as spray printing, dipping, filling, printing, slot extrusion, rotogravure printing, flexographic printing, offset printing, screen printing, process application by means of masks or matrices and mixtures thereof. The transferable agent and / or the surface treatment composition can be applied to the fibrous structure and / or tissue paper hygienic product before, simultaneously with or after application of the lotion composition in the fibrous structure and / or hygienic product of tissue paper. The transferable agent and / or the surface treatment composition may be applied during the paper manufacturing or conversion process, especially if it is applied to the outer layer of a layered fibrous structure and / or tissue paper hygienic product comprising that fibrous structure in layers. In one example, the application process of the composition for the surface treatment used provides a relatively broad surface area coverage on the surface of the fibrous structure and / or tissue paper hygienic product. Examples of such a suitable application process include but are not limited to printing, slot extrusion, and fine particle spray printing (although spray printing has the disadvantage of producing aerosols when the coverage area is wide). . b. Transferable agent v / or lotion composition: To apply the transferable agent or composition in lotion to the fibrous structure and / or tissue paper hygienic product and / or in the surface treatment composition present on the surface of that structure and / or product can be used any suitable application method by contact or without contact, such as spray printing, dipping, filling, printing, slot extrusion, rotogravure printing, flexographic printing, offset printing, screen printing, application process by means of of masks or matrices and mixtures of these. The transferable agent and / or the lotion composition can be applied to the fibrous structure and / or tissue paper hygienic product before, simultaneously and / or after applying the composition for surface treatment in the fibrous structure and / or product hygienic tissue paper. In one example, the transferable agent and / or lotion composition are applied in the surface treatment composition present on the surface of the fibrous structure and / or tissue paper hygienic product. In one example, the application process of the transferable agent and / or lotion composition used provides a relatively small surface area coverage on the surface of the fibrous structure and / or tissue paper hygienic product and / or on the composition for the treatment of surfaces present on the surface of that structure and / or product so that the regions of the composition for surface treatment and the regions of the lotion composition produce the contact surface with the user. Examples of such suitable application processes include but are not limited to spray printing, especially with rotating discs, printing, slotted extrusion and / or other patterns. In one example, the surface treatment composition can be added to a supply of fibers that will form an outer layer of a multilayer fibrous structure. The transferable agent and / or the lotion composition can be applied to the surface formed by the outer layer of that fibrous structure. In one example, the surface treatment composition is applied to the surface of the fibrous structure during the process of making the fibrous structure either before and / or after drying that structure. The transferable agent and / or the lotion composition can then be applied in the composition for the treatment of surfaces on the surface of the fibrous structure during the conversion process. In one example, when the lotion composition is applied in the surface treatment composition, the latter contains up to about 5%, 3%, 1% or 0.5% moisture.

Application of the transferable agent and / or lotion composition in the fibrous structures: In one example, the transferable agent and / or the lotion composition are applied to the fibrous structure and / or tissue paper hygienic product immediately after applying a composition for the surface treatment on the surface of a fibrous structure. The section of the fibrous structure and / or tissue paper hygienic product between the two operations was approximately 5 meters. For the practice of the present invention, a rotary spray application system RFT-Compact-III was modified with applicator heads distributed in the tissue and textile industry (distributed by Weitmann &Konrad GmbH &Co KG, Leinfelden Echterdingen, Germany ). The applicator head has 5 sets of rotating discs (type 1/1) and an effective application width of 448 mm. The cover of the apiicador head was replaced by walls heated with water in the top, bottom and back of the head. Then the whole unit was isolated to the outside. Two of these modified heads were installed, facing each other, to simultaneously treat the two sides of a fibrous structure and / or tissue paper hygienic product. Heating units with an integrated pump (type W60 / 10-1240 distributed by Kelviplast GmbH, Germany) were used to supply water of the desired temperature to the application units. In particular, the design of the heating elements was chosen so that the interior temperature of the applicator head was within + 1-2 ° C of the appropriate temperature. The transfer agent feed devices and / or lotion composition of the applicator heads are connected through a heat traced piping system to a heated pump connected through the pipes to a heated 100 liter tank containing the agent molten transferable and / or lotion composition. The return lines of the applicator are fed back into the heated tank. A heated flow meter was installed in the lotion composition supply line between the pump and the applicator heads. The flow meter (Promass 63M distributed by Endress & Hauser, Switzerland) was connected to the control unit of the RFT-Compact-lll system that controls the transfer agent pump and / or lotion composition (Labu Brox type gear pump) to supply the flow of the transferable agent and / or composition in desired lotion to the applicator heads. No changes were made to the configuration, shape and dimension of the rotating surfaces in the commercially distributed applicator head. Each set of rotating surfaces consisted of 2 rotating disks stacked on top of the other set. The delivery of the transferable agent and / or lotion composition to the two rotating surfaces of each cell was evenly divided. The discs have a diameter of approximately 98 mm. The five individual stacks of rotating surfaces are spaced about 112 mm apart. The first, the third and the fifth set of rotating surfaces were installed with a vertical deflection compared to the second and fourth rotating surfaces stack to avoid interference between the overlapping droplet streams horizontally. The rotating surface assemblies are distributed by Weitmann & Konrad GmbH & Co, Germany (type 1/1, item no. 618996 [upper part] and 618997 [lower part]). The applicator operates horizontally and with an approximate distance of 154 mm between the fibrous structure and / or tissue paper hygienic product and the center of the discs. The fibrous structure and / or the tissue paper hygienic product is located vertically from the top to the bottom between the two applicator heads. Each stack of rotating surfaces, controlled by the windows of the covering between the rotating surfaces and the fibrous structure and / or tissue paper hygienic product, covers an approximate width in the transverse direction of 224 mm in the fibrous structure and / or hygienic product of Tissue paper with the exception of two external piles of rotating surfaces of the applicator that only cover 112 mm each. The currents of two stacks of rotating surfaces overlap in each position. So that the distribution to the individual piles of discs was uniform, regulators of 1 mm diameter were used installed between the feeders to the rotating discs and the central supply tube of the applicator. The value determined for the temperature of the transferable agent and / or lotion composition is controlled by heating the tank, the pipe and the temperature in the application heads to the desired value. The flow rate is adjusted until obtaining the expected aggregate level for the fibrous structure. The fibrous structure and / or tissue paper hygienic product is generally maintained at room temperature during application. After impacting the fibrous structure and / or tissue paper hygienic product, the transferable agent and / or the lotion composition solidifies almost instantaneously.

TEST METHODS A. TRANSFERABLE AGENT TRANSFER TEST METHOD The amount and transfer efficiency of the transferable agent to an opposing surface can be measured by the following method. First the amount of lotion present on the surface of a fibrous structure or on it is determined. Methods for determining that amount are known in the industry, for example, NMRF and near infrared spectroscopy. An illustrative method is described in U.S. Pat. no. 6,261, 580 whose relevant descriptive parts are incorporated herein by reference. Then the amount of the lotion that is transferred to an opposite surface is determined. These methods are also known in the industry. U.S. Pat. no. 6,261,580 describes and illustrates a method. The amount of transferable agent that is transferred from a treated tissue paper product is determined with a Sutherland Rub test instrument (distributed by Testing Machines, Inc. of Amityville, N.Y.). This instrument uses an engine to rub 5 times a sample of the treated tissue paper on a waterproof transfer surface. Any transferable agent transferred from the treated tissue paper is extracted from the transfer surface and the amount transferred is determined by gas chromatography methods. Before the transferable agent transfer test, samples of fibrous structures to be tested should be conditioned according to the TAPPI method no. T402OM-88. Here, the samples are preconditioned for 24 hours at a relative humidity level of 10 to 35% and within a temperature range of 22 to 40 ° C. After this preconditioning step, the samples should be conditioned for 24 hours at a relative humidity of 48 to 52% and within a temperature range of 22 to 24 ° C. The transfer test must also be performed within the constant values of temperature and humidity. Then you get a piece of 30"(76 cm) x 40" (101 cm) cardboard Crescent no. 300 from Cordage Inc. of Cincinnati, Ohio. A paper cutter is used to cut six pieces of cardboard of 5.7 cm x 8.4 cm (2.25"x 7.25"). Draw two lines parallel to the width and down 2.9 cm (1.125") from the top and bottom edges on the white side of the card, carefully slot the length of the line with a razor blade using a ruler as a guide. To reach half the thickness of the sheet, these grooves will allow the cardboard / felt combination to be wrapped around the Sutherland instrument's weight, to draw an arrow parallel to the length of the cardboard on the grooved side of the instrument. pieces of black felt (F-55 or equivalent of New England Gasket of Bristol, Conn.) with a dimension of 2.25"x 8.5" x 0.0625"(5.7 cm x 21.6 cm x 1.6 cm). Place the felt on top of the green non-slotted side of the cardboard so that the long edges of the felt and cardboard are parallel and aligned. Make sure that the soft, spongy side of the felt faces up. Also, allow about 1.3 cm (0.5") of the felt to protrude from the top and bottom edges of the card, cut a sample of fibrous structure with the same dimensions as the felt and center it on the felt, fold the hanging edges comfortably and tape (3M Scotch.TM tape, St. Paul, Minn. is adequate) the sample and felt on the back of the carton to complete the preparation of a felt / cardboard / sample A 4 lb. weight (1.8 kilogram) ) has an effective contact area of 4 cm2 (26 cm2) which provides a contact pressure of 1 psi (6.8 kPa), since the contact pressure can be modified by altering the rubber pads placed on the face of the weight, It is important to use the rubber pads supplied by the manufacturer (Brown Inc., Mechanical Services Department, Kalamazoo, Mich.). These pads can be replaced if they harden, wear or break. When the weight is not in use it should be positioned so that the pads do not support the total weight of the weight. It is convenient to keep the weight resting on your side. To measure the actual combinations of tissue paper / cardboard, place the transfer surface (glass mirror) on the base plate of the test instrument by positioning the mirror against the adjustment pins. The adjustment pins prevent the mirror from moving during the test. Secure the felt / cardboard / calibration sample combination on the four pound weight leaving the cardboard side in contact with the weight pads. Make sure that the cardboard / felt / tissue paper combination is flattened against the weight. Hook the weight on the arm of the instrument. The felt / cardboard / tissue sample should be flattened on the mirror and the contact with the surface of the mirror should be 100%. Then, activate the test instrument by pressing the "push" button. Upon completion of the five offsets, the instrument will automatically stop. Remove the weight with cardboard covered with felt. Inspect the tissue paper sample. If it is broken, discard the felt and tissue and start over. If the tissue sample is intact, remove the cardboard covered by the felt from the weight. Repeat with three other felt / cardboard / tissue samples to make sure that enough lotion was transferred to perform the exact measurement. Repeat the previous steps to generate six replicates for each test condition. After measuring all the conditions, remove and discard all the felt. The felt strips will not be used again. Carton stands are used only if they are not bent, broken or soft or if their surface remains smooth. Each mirror is washed once with a four milliliter aliquot of toluene in a beaker. The extract is transferred to a sample flask and dried using dry nitrogen. The mirror is washed a second time with an aliquot of two milliliters of toluene, the liquid is transferred and dried as described above. Then one milliliter of toluene is added to each sample flask before sealing it. The flasks are shaken gently to dissolve the extract transferred from the mirror. The amount of transferable agent in the dissolved extract is then measured using known gas chromatography techniques. As is customary in the industry, known patterns are used to determine the recovery constants of the transferable agent (for the washing and transfer steps) and to determine the constants of the gas chromatography equipment. The amount of transfer agent determined chromatographically is divided by the recovery constant to estimate the amount of transferable agent in the mirror. The results are reported in milligrams. B. Test method of the relative concentration of the composition on the surface The relative concentration of a composition on a surface of the fibrous structure and / or tissue paper hygienic product can be determined using infrared spectroscopy, especially if the composition included in the sample contains hydrocarbons. In the near infrared spectroscopy method, a filter photometer or other near-infrared instrument may be used, but must be configured for backscattering detection. The appropriate wavelengths are used. The fibrous structure and / or tissue paper hygienic product is placed below the near infrared instrument and a reading is obtained. The sample is turned over to obtain the reading on the other side.

In addition to Near Infrared spectroscopy, medium infrared spectroscopy with the equipment and the appropriate wavelengths can also be used to determine the relative concentration of a composition on a surface of a fibrous structure and / or tissue paper hygienic product. All documents cited in the Detailed Description of the Invention are incorporated in their pertinent part, as a reference herein; The citation of any document should not be construed as an admission that it is prior industry with respect to the present invention. While particular embodiments of the present invention have been illustrated and described, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. It has been intended, therefore, to cover all the changes and modifications within the scope of the invention in the appended claims.

Claims (11)

1. CLAIMS 1. A fibrous structure comprising a transferable agent; characterized in that the transferable agent is associated with the fibrous structure so that more than about 6% by weight of the transferable agent is transferred from the fibrous structure to the surface when the user uses it.
2. 2. The fibrous structure according to claim 1, further characterized in that the fibrous structure comprises less than about 50% of the transferable agent, by weight of the fibrous structure.
3. 3. The fibrous structure according to claim 1, further characterized in that the transferable agent is associated with the surface contacting the user present on the surface of the fibrous structure, preferably, the transferable agent is associated with the surface that is in contact with the user in an amount less than 10 g / m2.
4. The fibrous structure according to claim 1, further characterized in that the transferable agent is present in a lotion composition which further comprises a compound selected from the group comprising hydrocarbons, fatty acid esters, alcohol ethoxylates and mixtures thereof, preferably, lotion composition further comprises a softening agent.
5. 5. The fibrous structure according to claim 1, further characterized in that the transferable agent comprises a skin care agent.
6. 6. The fibrous structure according to claim 1, further characterized in that the transferable agent is present at a higher concentration on a surface of the fibrous structure compared to within the fibrous structure, preferably, the transferable agent covers less area than the fibrous structure. total surface area of the surface of the fibrous structure.
7. The fibrous structure according to claim 6, further characterized in that the surface of the fibrous structure further comprises a surface treatment composition, preferably, the surface treatment composition comprises a surface treatment agent selected from the group comprising polymers, hydrocarbons, waxes, oils, silicones, quaternary ammonium compounds, fluorocarbons, substituted C 1 -C 4 alkanes, substituted C 10 -C 22 alkenes, polyols, sugar derivatives, and mixtures thereof.
8. 8. The fibrous structure according to claim 7, wherein the fibrous structure exhibits a softness value that is greater than the softness value of the fibrous structure that does not contain the transferable agent.
9. 9. The fibrous structure according to claim 1, further characterized in that the transferable agent comprises a medicinal agent, preferably, a clinically beneficial amount of the medicinal agent is transferred from the fibrous structure to the wearer's skin.
10. A tissue or multi-sheet tissue paper hygienic product comprising a fibrous structure according to claim 1.
11. 11. A process for treating a fibrous structure with a transferable agent to produce a fibrous structure in accordance with any of claims 1-9; the process comprises the step of associating a transferable agent with a fibrous structure in need of treatment, such that more than 6% by weight of the transferable agent is transferred from the fibrous structure to the surface when a user uses it.