JP2007533763A - Fibrous structure containing migratory drug - Google Patents

Abstract

Provided are fibrous structures containing migratory agents, single-ply or multi-ply sanitary tissue products made from the fibrous structures, and methods for their production.

Description

  The present invention relates to a fibrous structure containing a migratory agent, a single-ply or multi-ply sanitary tissue product produced from the fibrous structure, and methods for producing them. In particular, the present invention is a fibrous structure comprising a user contact surface that includes a migratory agent, wherein the migratory agent is in use by a user (eg, while touching the fibrous structure). ) More than about 6% by weight of the migratory agent co-exists in the fibrous structure so that it migrates from the fibrous structure to the surface (directly or indirectly on the surface of the fibrous structure) Present and / or present in the fibrous structure).

  Colds and allergies with tears and runny nose are a source of human suffering. In addition to the hassle of breathing, watching, talking, and treating runny nose, people suffering from these diseases often have to deal with the irritated nose and surrounding areas. In addition, the nose and the surrounding area often become red and inflamed, so that the attention of others is often attracted. There can be several causes of irritation and inflammation (redness). The main causes are, of course, unavoidably frequent bites of the nose with a tissue or cloth and wiping the runny nose from the nose and its surroundings. The degree of irritation and inflammation caused by biting or wiping the nose is very much related to the surface roughness of the tool used. The degree of irritation and inflammation is also closely related to the number of times the nose and surrounding area must contact the device, and the use of relatively weak or relatively non-absorbable devices is more prone to contact with the face. Those that require a large number of contacts and are less strong or relatively non-absorbable than when using a higher-strength or more absorbent device that can accommodate a larger amount of runny nose. Requires more contact with the face.

  Numerous attempts have been made to solve the irritation and inflammation problems caused by biting and wiping the nose. Examples of such previous attempts include the addition of lotions and / or beneficial skin chemicals to fibrous structures. However, such previous attempts have failed to transfer a sufficient amount, such as a clinically beneficial amount, to the user's skin and / or to provide clinical benefit, such as It has been found that lotions and / or chemicals cannot be efficiently transferred to the user's skin.

  As such, the fibrous structure can be co-located so that the migratory drug is fully and / or efficiently transferred to provide the desired effect, such as improving the condition of the user's stimulated skin. There is a need for fibrous structures containing existing migratory drugs.

  The present invention meets the above needs by providing a fibrous structure that includes a migratory agent that can be sufficiently and / or efficiently migrated to opposing surfaces to provide the desired effect.

  In one example of the present invention, a fibrous structure comprising a migratory agent, wherein the migratory agent is greater than about 6% and / or greater than about 7% by weight of the migratory agent during use by a user, And / or more than about 9% and / or more than about 11% and / or more than about 15% and / or more than about 17% by weight transferred from the fibrous structure to the surface. A fibrous structure is provided that co-exists in the fibrous structure.

  In yet another example of the present invention, a single-ply or multi-ply sanitary tissue product comprising a fibrous structure according to the present invention is provided.

  In yet another example of the present invention, a fibrous structure that needs to be treated so that, during use, greater than about 6% by weight of the migrating agent is transferred from the fibrous structure to the surface during use. A method for treating a fibrous structure comprising a step of coexisting a migratory drug.

  Accordingly, the present invention provides a fibrous structure containing a migratory agent, a product produced from the fibrous structure, and a method for producing them.

Definitions As used herein, “fiber” means an elongated particle having an apparent length that is much greater than its apparent diameter, ie, a ratio of length to diameter of at least about 10. Fibers having a non-circular cross-section are common, where “diameter” may be considered 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 papermaking fiber. The present invention contemplates the use of a variety of papermaking fibers such as natural or synthetic fibers, or any other suitable fiber, and any combination thereof.

  Natural papermaking fibers useful in the present invention include animal fibers, mineral fibers, plant fibers and mixtures thereof. The animal fibers may be selected from the group consisting of hair, silk and mixtures thereof, for example. Plant fiber consists of, for example, wood, cotton, cotton linter, flax, sisal, abaca, linen, hesperaloe, burlap, bamboo, bagasse, kudzu, corn, sorghum, god, agave, loofah and mixtures thereof It may be derived from a plant selected from the group.

  Wood fibers are often referred to as wood pulps, including chemical pulps such as kraft (sulfate) pulp and sulfite pulp, as well as, for example, groundwood pulp, thermomechanical pulp, chemi-mechanical pulp (CMP), Chemi-thermomechanical pulp (CTMP), neutral and semi-chemical sulfite pulp (NSCS) and other mechanical and semi-chemical pulps. Nonetheless, chemical pulp may be preferred because it provides excellent tactile flexibility to a tissue sheet made therefrom. Pulp derived from both deciduous trees (hereinafter also referred to as “hardwood”) and conifers (hereinafter also referred to as “coniferous”) can be used. Hardwood fibers and softwood fibers can be mixed or stacked in layers to provide a layered web and / or a layered web. U.S. Pat. Nos. 4,300,981 and 3,994,771 are hereby incorporated by reference for the purpose of disclosing hardwood and softwood fiber stratification. Fibers derived from recycled paper that contain any or all of the above categories and may contain other non-fibrous materials such as fillers and adhesives used to facilitate original papermaking Can also be used in the present invention.

  Wood pulp fibers may be short (specific to hardwood fibers) or long (specific to softwood fibers). Non-limiting examples of short fibers include acacia, eucalyptus, maple, oak, porcupine, birch, boxwood, alder, ash, cherry, elm, hickory, poplar, rubber, walnut, black acacia, sycamore, beech, sage, sasaslas, Mention may be made of fibers derived from a fiber source selected from the group consisting of Gmelina, Nemunoki, Anthocephalus and magnolia. Non-limiting examples of long fibers include fibers derived from pine, spruce, fir, American larch, American hemlock, cypress and cedar. In some cases, fibers of coniferous wood originating from the kraft process and originating from the northern climate are preferred. These are often referred to as northern policy leafwood kraft (NSK) pulp.

  The synthetic fiber may be selected from the group consisting of wet-spun fiber, dry-spun fiber, melt-spun (including meltblown) fiber, synthetic pulp fiber, and mixtures thereof. Synthetic fibers include, for example, cellulose (often referred to as “rayon”); cellulose derivatives such as esters, ethers, or nitrogen-containing derivatives; polyolefins (including polyethylene and polypropylene); polyesters (including polyethylene terephthalate) ); Polyamides (often referred to as “nylon”); acrylic resins; non-cellulosic polymeric carbohydrates (eg, chitin derivatives such as starch, chitin, and chitosan); and mixtures thereof.

  As used herein, “fibrous structure” refers to a structure that includes one or more fibers. Non-limiting examples of the method for producing a fibrous structure include known wet papermaking methods and airlaid papermaking methods. Such methods typically involve forming a wet or dry fiber composition, often referred to as a fiber slurry, in a wet process, followed by an initial fibrous structure. Placing a plurality of fibers on a forming wire or belt, drying and / or coexisting the fibers together to form a fibrous structure, and / or finished fiber Further processing the fibrous structure to form a structure. For example, in a typical papermaking method, the finished fibrous structure is a fibrous structure that has been wound on a reel at the end of papermaking but before being converted into a sanitary tissue product.

  "Hygiene tissue products" are used as wiping tools (toilet paper) for urination and post-defecation cleaning, as wiping tools (facial tissue and / or disposable handkerchiefs) for otolaryngological secretions, And one or more fibrous structures that have been converted or not converted to these devices, useful as multifunctional absorbent and cleaning applications (absorbent towels). In one example, the present invention provides a multi-ply disposable handkerchief containing a lotion composition having a thickness of about 0.1 mm to about 0.4 mm.

  As used herein, a “ply (s)” is optionally positioned substantially in close proximity to other plies to provide a multi-ply finished fibrous structure product and / or Or represents individual finished fibrous structures that form a sanitary tissue product. It is believed that a single fibrous structure can also efficiently form a two “ply” or multiple “plies”, for example by folding itself.

  As used herein, “surface of a fibrous structure” refers to the portion of the fibrous structure that is exposed to the external environment. In other words, the surface of the fibrous structure is a part of the fibrous structure that is not completely surrounded by other parts of the fibrous structure.

  As used herein, “user contact surface” refers to a portion of the fibrous structure and / or directly or indirectly on the surface of the fibrous structure exposed to the external environment. Migratory agent and / or surface treatment composition and / or lotion composition. In other words, the user contact surface is a surface formed of a fibrous structure that is directly and / or indirectly on the surface of the fibrous structure that contacts the opposing surface when the user uses it. And any surface treatment composition and / or lotion composition present. For example, the user contact surface is a surface formed of a fibrous structure that contacts the user's skin when the user wipes his skin with the fibrous structure of the present invention. Any surface treatment composition and / or lotion composition present directly and / or indirectly above is included.

  In one example, the user contact surface is fibrous, particularly in the case of embossed and / or structured fibrous structures, such as air-dried and / or embossed fibrous structures. The part which became one step higher in the structure and the recessed part position may be included. In the case of a fibrous structure that has been air-dried and subjected to pattern compression, the raised portion may be a joint, and the recessed portion may be a cushion, and vice versa. obtain. Accordingly, the joint portion may include a lotion composition directly and / or indirectly, and the cushion portion may include a surface treatment composition, and vice versa, so that the user can When the skin is touched with a fibrous structure, both the lotion composition and the surface treatment composition come into contact with the user's skin. The same applies to an embossed fibrous structure that includes an embossed portion, where the embossed portion may include a lotion composition directly and / or indirectly, while the non-embossed portion is surface treated. Compositions may be included and vice versa.

  In one example, the user contact surface must be configured with a sufficiently sized area so that, in use, two or more different areas (including different compositions) are exposed on the opposing surface. In other words, a fiber that is almost covered with a lotion composition (on a microscopic scale) so that the lotion composition just touches the user's skin, but is completely covered with such a lotion composition on a macroscopic scale. The surface of the sex structure does not include two different areas within the user contact surface. In one example, the user contact surface may constitute an outer layer of a multilayer fibrous structure, and the outer layer may include a surface treatment composition and / or a lotion composition.

  The user contact surface may be present on the fibrous structure and / or sanitary tissue product prior to use by the user and / or the user contact surface may be, for example, fibrous on the user's own skin. Prior to and / or use of the fibrous structure and / or sanitary tissue product by the user, such as when pressure is applied to the fibrous structure and / or sanitary tissue product while in contact with the structure and / or sanitary tissue product. May be made / formed in.

  All percentages and ratios are calculated by weight unless otherwise indicated. All percentages and ratios are calculated based on the total composition unless otherwise indicated.

  Unless otherwise stated, all concentrations of a component or composition relate to the activity level of the component or composition and exclude impurities that may be present in commercial sources, such as residual solvents or by-products. The

Fibrous Structure The migratory agent of the present invention may be present in the surface treatment composition and / or lotion composition and / or directly on and / or in the fibrous structure or It may exist indirectly.

  FIG. 1 is a schematic explanatory view of a fibrous structure according to the present invention. As shown in FIG. 1, the fibrous structure 10 includes a user contact surface 12 that includes a first region 14 and a second region 16. The user contact surface 12 coexists with the surface 18 of the fibrous structure. As shown, the surface 18 of the fibrous structure may include one or more fibers 20.

  The first region 14 and / or the second region 16 may exist (coexist with the surface) on the surface 18 of the fibrous structure. When the first region 14 and / or the second region 16 are present on the surface 18 of the fibrous structure, one or both of them are continuous or substantially continuous on the surface 18 of the fibrous structure. It may exist in the form of a reticulated network and / or in multiple discrete sites (sometimes known as “islands”).

  When present on the surface 18 of the fibrous structure, the first region 14 and / or the second region 16 may be in contact with all or substantially the entire surface area of the surface 18 of the fibrous structure, and The entire surface area or substantially the entire surface area may be covered. In one example, the first region 18 is in contact with and / or covers all or substantially the entire surface area of the surface 18 of the fibrous structure.

  When present on the surface 18 of the fibrous structure, the first region 14 and / or the second region 16 may be in contact with less than or substantially less than the entire surface area of the surface 18 of the fibrous structure; And / or less than the entire surface area or substantially less than the entire surface area. In one example, the second region 16 is in contact with less than or substantially less than the entire surface area of the surface 18 of the fibrous structure and / or covers less than or substantially less than the entire surface area. . If either region covers substantially less than the entire surface area of the surface 18 of the fibrous structure, the region may be in the form of a plurality of separate sites.

  As shown in FIG. 2, the first region 14 is in contact with and / or covers substantially the entire surface area of the surface 18 of the fibrous structure, and the second region 14. Region 16 is in contact with and / or covers substantially less than the entire surface area of the surface 18 of the fibrous structure. The first region 14 may be in the form of a continuous or substantially continuous network and the second region 16 leads to the first region 14 of a continuous or substantially continuous network. It may be in the form of a plurality of separate sites arranged in place.

  Either region may be in contact with the other region. As shown in FIG. 3, the second region 16 is in contact with the first region 14 such that the first region 14 is located between the second region 16 and the surface 18 of the fibrous structure. The second region 16 may be present on less than the entire 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 separate sites. As shown in FIGS. 1, 4, and 5, a portion of the second region 16 is formed such that both the second region 16 and the first region 14 are in direct contact with the surface 18 of the fibrous structure. 14 is in contact. As shown also in FIGS. 4 and 5, a part of the second region 16 is not in contact with the first region 14.

  4 and 5 also show that substantially less than the entire surface area of the surface 18 of the fibrous structure is in contact with or covered by the first region 14 and the second region 16. Yes. In these examples, the user contact surface 12 includes, in addition to the first region 14 and the second region 16, a third region, namely the surface 18 of the fibrous structure.

  FIG. 6 is a schematic explanatory diagram of another example of the fibrous structure according to the present invention. The fibrous structure 10 includes a user contact surface 12 that includes a first region 14, a second region 16, and a third region, the third region being in this case a fibrous material that includes one or more fibers 20. A surface 18 of the structure.

  The first region 14 includes a surface treatment composition.

  The second region 16 includes a lotion composition.

  In one example, the surface treatment composition and / or lotion composition may be present on the surface 18 of the fibrous structure in a weight-based concentration that is higher than the interior of the fibrous structure.

  In another example, the surface treatment composition and / or lotion composition may be present in the fibrous structure at a higher weight based concentration than on the surface 18 of the fibrous structure.

  The surface treatment coverage of the surface treatment composition on the surface of the fibrous structure is greater than about 10%, and / or greater than about 30%, and / or greater than about 50% to about 100%, and / or Or up to about 90% and / or up to about 85%.

  The surface area coverage of the lotion composition on the surface of the fibrous structure is greater than about 1% and / or greater than about 5% and / or greater than about 10% and / or greater than about 20% Up to about 99% and / or up to about 90% and / or up to about 75% and / or up to about 50%.

  In one example, the surface area of the fibrous structure and / or sanitary tissue product is greater than about 10%, and / or greater than about 20%, and / or greater than about 50%, and / or greater than about 70%, And / or greater than about 80% and / or greater than about 90% of the surface treatment composition and 0 to about 90% and / or 0 to about 80% and / or 0 to about 50%, And / or 0 to about 30% and / or 0 to about 20% and / or 0 to about 10% lotion composition. If the surface area of the surface of the fibrous structure and / or sanitary tissue product comprises 0% of the lotion composition, the lotion is contained within the fibrous structure and / or the sanitary tissue product, eg, a two-ply sanitary tissue product. It may be between.

  In another example, the surface area of the user contact surface is from about 20% to about 97%, and / or from about 50% to about 97%, and / or from about 80% to about 97%. And about 3% to about 80% and / or about 3% to about 50% and / or about 3% to about 20% and / or about 3% to about 15% lotion composition including.

  The surface area coverage of the fibrous structure and / or sanitary tissue product may be determined by the surface area coverage test method described herein.

  Each region may exhibit a differential concentration and / or a differential height (projection from the surface of the fibrous structure) of each of their respective compositions therein. is there.

  The area of the user contact surface is greater than about 10% and / or greater than about 30% and / or greater than about 50% to about 100% and / or about 90% and / or about 85 % Surface treatment composition, and / or greater than about 1%, and / or greater than about 5%, and / or greater than about 10%, and / or greater than about 20% to about 99%, and Up to about 90% and / or up to about 75% and / or up to about 50% lotion composition may be included.

  The combination of the surface treatment composition and the lotion composition on the user contact surface exhibits greater flexibility than the user contact surface comprising either the surface treatment composition or the lotion composition alone.

  The user contact surface may be planar or may have protrusions of either the surface treatment composition and / or the lotion composition such that the user contact surface exhibits a differential height. Good.

  In another example, the user contact surface may have a higher concentration lotion composition portion and / or a higher lotion composition portion and a lower concentration lotion composition portion and / or a lower height. The lotion composition part and the surface treatment composition part may be provided.

  The surface treatment composition and the lotion composition comprise a first region in which the user contact surface comprises a composition separate from the composition present in the second region (at least one component is different in the composition). As such, it may contain one or more similar and / or identical components.

  Non-limiting types of fibrous structures according to the present invention include conventional types of felt-compressed fibrous structures, pattern-compressed fibrous structures, and very bulky uncompressed fibrous structures Is included. The fibrous structure may be a homogeneous structure or a multi-layer (two or more layers) structure, and the sanitary tissue product produced therefrom may be a single-ply structure, Or a multi-ply structure may be sufficient.

  The fibrous structure may be post-processed, for example by embossing and / or by calendering and / or by folding and / or printing an image thereon.

  The fibrous structure may be an air-dried fibrous structure or a normally dried fibrous structure.

  The fibrous structure may be creped or not creped.

The fibrous structure and / or sanitary tissue product of the present invention may have from about 10 g / m ² to about 120 g / m ² and / or from about 12 g / m ² to about 80 g / m ² and / or about 14 g / m ^2. A basis weight of ˜about 65 g / m ² may be indicated.

  The fibrous structure and / or sanitary tissue product of the present invention is greater than about 59 g / cm (150 g / inch) and / or from about 78 g / cm (200 g / inch) to and / or about 98 g / cm (250 g). / Inch) to about 1182 g / cm (3000 g / inch) and / or up to about 984 g / cm (2500 g / inch) and / or up to about 787 g / cm (2000 g / inch) and / or about 394 g / cm. A total dry tensile strength of up to (1000 g / inch) and / or up to about 335 g / cm (850 g / inch) may be indicated.

Fibrous structure and / or sanitary tissue products of the present invention is 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 / cm ^3, and / or less than about 0.07 g / cm ^3, and / or less than about 0.05 g / cm ^3, and / or from about 0.01 g / cm ³ ~ about 0.20 g / until cm ^3, and / or may exhibit about density of up to 0.02 g / cm ³ ~ about 0.10 g / cm ^3.

  The fibrous structure and / or sanitary tissue product of the present invention is greater than about 0.1 and / or greater than about 0.5 and / or greater than about 1.0 and / or greater than about 1.5. And / or more than about 2.0 and / or more than about 3.0 and up to about 20 and / or up to about 15 and / or up to about 13 and / or up to about 10 and / or An average lint value of up to about 8 may be indicated.

Migratory Agent The fibrous structure of the present invention is less than about 50% and / or less than about 40% and / or less than about 30% and / or less than about 20% and / or about 10%. Less than wt.%, And / or less than about 5 wt.% To about 0.01 wt.%, And / or up to about 0.1 wt.%, And / or up to about 1 wt.

  The migratory drug may be an anti-inflammatory compound, lipid, inorganic anions, inorganic cations, proteolytic enzyme inhibitors, sequestering agents and mixtures thereof.

In one example, the migratory agent is less than about 10 g / m ² and / or less than about 8 g / m ² and / or less than about 6 g / m ² to about 0.5 g / m ^{2 on} the user contact surface, and And / or coexisting up to about 1.0 g / m ² and / or up to about 1.5 g / m ² .

  In one example, the migratory agent may be any substance that has a higher affinity for oil on water and / or provides skin health benefits by direct contact with the skin. Suitable examples of such benefits include, but are not limited to, improving skin barrier function, improving moisturizing power and providing nutrients to the skin.

  Non-limiting examples of suitable migratory agents include fatty acids, fatty acid esters, fatty alcohols, triglycerides, phospholipids, mineral oils, essential oils, sterols, sterol esters, emollients , Waxes, and combinations thereof.

  The migratory agent may be alone, may be included in the lotion composition, and / or may be included in the surface treatment composition. A commercially available lotion composition containing a migratory drug is Vaseline® Intensive Care Lotion (Chesebrough-Pond's, Inc.).

  Non-limiting classes of fats and oils useful as migratory agents include apricot oil, avocado oil, babas oil, borage seed oil, butter, C12 (subscript number) (C.sub.12) to C18 (subscript) Number) (C.sub.18) acid triglyceride, camellia oil, canola oil, caprylic acid / capric acid / lauric acid triglyceride, caprylic acid / capric acid / linoleic acid triglyceride, caprylic acid / capric acid / stearic acid triglyceride, caprylic acid / Capric acid triglyceride, carrot oil, cashew nut oil, castor oil, cherry seed oil (Cherry Pit Oil), chia oil, cacao butter, coconut oil, cod liver oil, corn germ oil, corn oil, cottonseed oil, C10 (subscript number) ) (C.sub.10) to C18 (subscript) (C.sub.18) triglycerides, egg oil, epoxidized soybean oil, pine Evening primrose oil, glyceryl triacetylhydroxystearate, glyceryl triacetylricinoleate, glycosphingolipid, grape seed oil, hazelnut oil, human placenta lipid, hybrid safflower oil, hybrid sunflower seed oil, hydrogenated castor oil, hydrogenated castor Oil laurate, hydrogenated coconut oil, hydrogenated cottonseed oil, hydrogenated C12 (subscript) (C.sub.12) to C18 (subscript) (C.sub.18) triglyceride, hydrogenated fish oil, hydrogenated lard, hydrogenated menhaden oil , Hardened mink oil, hardened orange luffy oil, hardened palm kernel oil, hardened palm oil, hardened peanut oil, hardened shark liver oil, hardened soybean oil, hardened tallow, hardened vegetable oil, lanolin and lanolin derivatives, lard, lauric acid / palmitin Acid / oleic acid triglyceride, North American cruciferous oil (Lesquerel la Oil), flaxseed oil, macadamia nut oil, maleated soybean oil, meadow foam oil, menhaden oil, mink oil, moringa oil, Mortierella oil, cow leg oil, oleic acid / linole Acid triglyceride, oleic acid / palmitic acid / lauric acid / myristic acid / linoleic acid triglyceride, oleostearin, olive husk oil, olive oil, Omental Lipids, orange luffy oil, palm kernel oil , Palm oil, apricot oil, peanut oil, Pengawar Djambi Oil, Pentadesma Butter, phospholipids, pistachio nut oil, placenta lipids, rapeseed oil, rice bran oil, safflower oil, sesame oil , Shark liver oil, shea butter, large Oil, sphingolipids, sunflower seed oil, sweet tonsil oil, tall oil, tallow, tribehenine, tricaprin, tricaprylin, triheptanoin, trihydroxymethoxy stearin, trihydroxy stearin, triisononanoin, triisostearin, trilaurin, trilinolein, Examples include trilinolenin, trimyristin, trioctanoin, triolein, tripalmitin, trisebacin, tristearin, triundecanoin, vegetable oil, walnut oil, bran lipid, wheat germ oil and zadoary oil .

  Non-limiting examples of fatty acids suitable as migratory agents include arachidic acid, arachidonic acid, behenic acid, capric acid, caproic acid, caprylic acid, coconut oil fatty acid, corn oil fatty acid (Corn Acid), cottonseed oil fatty acid ( Cottonseed Acid), hardened palm oil fatty acid, hardened Menhaden oil fatty acid (Hydrogenated Menhaden Acid), hardened tallow acid, hydroxystearic acid, isostearic acid, lauric acid, linoleic acid, linolenic acid, linseed oil fatty acid, myristin Acid, oleic acid, palmitic acid, palm kernel acid fatty acid (Palm Kernel Acid), pelargonic acid, ricinoleic acid, soybean oil fatty acid (Soy Acid), stearic acid, tall oil fatty acid (Tall Oil Acid), tallow fatty acid (Tallow Acid) , Undecanoic acid, undecylenic acid and wheat germ oil fatty acid (Wheat Germ Acid).

  Non-limiting examples of fatty alcohols suitable as migratory agents include behenyl alcohol, C9 (subscript) (C.sub.9) to C11 (subscript) (C.sub.11) alcohols , C12 (subscript) (C.sub.12) to C13 (subscript) (C.sub.13) alcohols, C12 (subscript) (C.sub.12) to C15 (subscript) ) (C.sub.15) alcohols, C12 (subscript) (C.sub.12) to C16 (subscripts) (C.sub.16) alcohols, C14 (subscript) (C.sub. sub.14) to C15 (subscript) (C.sub.15) alcohols, capryl alcohol, cetearyl alcohol, cetyl alcohol, coconut oil alcohol, decyl alcohol, hardened tallow alcohol, lauryl alcohol, myristyl alcohol, oleyl alcohol , Palm oil alcohol, palm kernel oil al Examples include coal, stearyl alcohol, tallow alcohol and tridecyl alcohol.

  Non-limiting examples of essential oils suitable as migratory agents include anise oil, balm mint oil, basil oil, bee balm oil, bergamot oil, birch oil, bitter almond oil, bitter orange oil, calendula oil, California nutmeg oil, Castor oil, cardamom oil, chamomile oil, cinnamon oil, salvia oil, clove leaf oil, clove oil, coriander oil, cypress oil, eucalyptus oil, fennel oil, gardenia oil, geranium oil, ginger oil, grapefruit oil, hop oil, Crab genus oil (Hyptis Oil), Blackwood oil (Indigo Bush Oil), Jasmine oil, Juniper oil, Kiwi oil, Laurel oil, Lavender oil, Lemongrass oil, Lemon oil, Linden oil, Raviji oil, Mandarin orange oil, Matricaria Oil, mussel oil, nutmeg oil, frankincense, orange flower oil, Orange oil, patchouli oil, peniroy alba mint oil, peppermint oil, pine oil, pine tar oil, rosehip oil, rosemary oil, rose oil, henrouda oil, sage oil, elderflower oil (Sambucus Oil), sandalwood oil, Sassafras oil, European fir oil, spearmint oil, Majorana oil, violet oil oil, tar oil, tea tree oil, thyme oil, Wild Mint Oil, yarrow oil and ylang ylang oil.

Non-limiting examples of sterols and / or sterol derivatives suitable as migratory agents include sterols having a tail at position 17 and no polar groups, such as cholesterol, sitosterol, stigma sterols and ergosterol, as well as C ₁₀ -C ₃₀ cholesterol / lanosterol esters, cholecalciferol, cholesteryl hydroxystearate, cholesteryl isostearate, cholesteryl stearate, 7-dehydrocholesterol, dihydrocholesterol, dihydrocholesteryl octyl decanoate, Dihydrolanosterol, dihydrolanosteryl octyl decanoate, ergocalciferol, tall oil sterol, soy sterol acetate, lanasterol, soy sterol Avocado sterols, Abokajin (avocadin) and sterol esters.

  Non-limiting examples of emollients suitable as migratory agents include mineral oil, mineral jelly, petrolatum, cosmetic esters, fatty acid esters, glyceryl esters, alkoxylated carboxylic acids, alkoxylated alcohols, aliphatic Examples include alcohols, lanolin and lanolin derivatives, petrolatum base oils, silicones, fats, hydrogenated vegetable oils, and polyhydroxy esters.

Non-limiting examples of waxes suitable as migratory agents include natural and synthetic waxes such as bayberry wax, beeswax, _C30 alkyl dimethicone, candelilla wax, carnuaba, ceresins, cetyl esters, Hardened cottonseed oil, hardened jojoba oil, hardened jojoba wax, hardened microcrystalline wax, hardened rice bran wax, hardwood wax, jojoba butter, jojoba esters, jojoba wax, lanolin wax, microcrystalline wax, mink wax, motan acid wax ), Motan wax, ourikari wax, ozokerite, paraffin, PEG-6 beeswax, PEG-8 beeswax, rice bran wax, shellac wax, barley malt shell wax, steryl dimethicone synthetic beeswax, synthetic Candelilla wax, synthetic carnauba wax, synthetic wood wax, synthetic hojo Examples include wax and synthetic wax. In one example, the wax includes carnauba, keracin, cetyl esters, microcrystalline wax, montan wax, ozokerite and / or synthetic wax.

  Non-limiting examples of moisturizers suitable as migratory 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, Glyceres-7, Glyceres-12, Glyceres-20, Glyceres-26, Glycerin, honey, hydrogenated honey, hydrogenated starch hydrolysate, hydrolyzed corn starch, lactamide MEA, lactic acid, lactose lysine PCA, Mannitol, methyl glutes-10, methyl glutes-20, PCA, PEG-2 lactamide, PEG-10 propylene glycol, polyamino sugar condensate, potassium PCA, propylene glycol , Propylene glycol citrate, saccharide hydrolyzate, saccharide isomerate (Saccharide Isomerate), sodium aspartate, sodium lactate, sodium PCA, sorbitol, and TEA- lactate and the like.

Surface treatment composition A surface treatment composition for the purposes of the present invention comprises a fibrous structure and / or sanitary tissue that is held by a user holding the fibrous structure and / or a sanitary tissue product comprising the fibrous structure. A composition that imparts the surface feel of a fibrous structure perceived by rubbing the user's skin with the product. Such tactile sensation can be characterized by friction, suppleness, and smoothness, as well as subjective descriptions, such as a smooth, velvet, silk, or flannel feel. However, it is not limited to these.

  The surface treatment composition may or may not be transferable. Typically, the surface treatment composition is not substantially transferable.

  The surface treatment composition can increase or decrease the surface friction of the surface of the fibrous structure, particularly the surface for user contact of the fibrous structure. Typically, the surface treatment composition reduces the surface friction of the surface of the fibrous structure relative to the surface of the fibrous structure that does not include such a surface treatment composition.

  The surface treatment composition may have a wet tension that is less than or equal to the surface tension of the lotion composition so as to minimize diffusion of the lotion composition in contact with the surface treatment composition.

  The surface treatment composition includes a surface treatment agent. The surface treatment composition when applied to the fibrous structure is at least about 0.1 wt%, and / or at least about 0.5 wt%, and / or at least about 1 wt%, and / or at least about 3 wt% And / or at least about 5% to about 90% and / or up to about 80% and / or up to about 70% and / or up to about 50% and / or about 40% Up to the surface treatment agent may be included. In one example, the surface treatment composition comprises from about 5% to about 40% by weight of the surface treatment agent.

  The surface treatment composition present on the fibrous structure of the present invention and / or a sanitary tissue product comprising the fibrous structure is at least about 0.01% of the total basis weight, and / or at least about 0.05. % And / or at least about 0.1% of a surface treatment agent. In one example, the fibrous structure and / or sanitary tissue product is about 0.01% to about 20%, and / or about 0.05 to about 15%, and / or about 0.1% of the total basis weight. About 10%, and / or about 0.01% to about 5%, and / or about 0.1% to about 2% of a surface treatment agent.

  In one example, the surface treatment composition of the present invention is a microemulsion in water of a surface treatment agent (eg, an amino functional polydimethylsiloxane). In such examples, the concentration of the surface treatment agent in the surface treatment composition is about 3% to about 60%, and / or about 4% to about 50%, and / or about 5% to about 40%. It may be. Non-limiting examples of such microemulsions are commercially available from Wacker Chemie, Dow Corning and / or General Electric Silicones. .

Non-limiting examples of suitable surface treatment agents include polymers such as polyethylene and its derivatives, hydrocarbons, waxes, oils, silicones (polysiloxanes), quaternary ammonium compounds, fluorocarbons, substituted C ₁₀ -C ₂₂ alkanes, substituted C ₁₀ -C ₂₂ alkenes, in particular derivatives of fatty alcohols and fatty acids (e.g., fatty acid amides, fatty acid condensates and fatty alcohol condensates), polyols Can be selected from the group consisting of polyol derivatives (eg, esters and ethers), sugar derivatives (eg, ethers and esters), polyglycols (eg, polyethylene glycol), and mixtures thereof. .

  The surface treatment composition may comprise an additional component such as a vehicle as described herein below, wherein the additional component comprises a fibrous structure and / or a sanitary tissue product comprising the fibrous structure. May not exist on top of. In one example, the surface treatment composition may include a surface treatment agent and a vehicle such as water to facilitate application of the surface treatment agent on the surface of the fibrous structure.

Lotion composition The lotion composition may comprise oils and / or emollients and / or waxes (any or all of which may be migratory agents) and / or fixatives. . In one example, the lotion composition comprises about 10% to about 90% oils and / or liquid emollients, and about 10% to about 50% fixatives, and / or about 0% to about 60%. Contains petrolatum, and optionally the remaining amount of vehicle.

  The lotion composition may be heterogeneous. The lotion composition may contain solids, gel structures, polymeric materials, multiple phases (eg, oil and water phases) and / or emulsifying components. It may be difficult to accurately determine the melting temperature of the lotion composition, in other words it may be difficult to determine the transition temperature between the liquid, the pseudo-liquid, the pseudo-solid, and the solid. . The terms melting temperature, melting point, transition point and transition temperature are used interchangeably herein and have the same meaning.

  Since the lotion composition can be a high viscosity semi-solid, it will not substantially flow without being activated during the lifetime of the product or gel structure.

  The lotion composition may be thin and / or the lotion composition may vary greatly in viscosity near the skin temperature so that it can migrate to the user's skin and easily diffuse there.

  The lotion composition may be in the form of an emulsion and / or dispersion.

  In one example of a lotion composition, the moisture content of the lotion composition is less than about 20%, and / or less than 10%, and / or less than about 5%, or less than about 0.5%.

  In another example, the solids content of the lotion composition is 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 Or up to about 95%, and / or up to about 90%, and / or up to about 80%.

  Non-limiting examples of suitable oils and / or emollients include glycols (eg, propylene glycol and / or glycerin), polyglycols (eg, triethylene glycol), petrolatum, fatty acids, fats Aliphatic alcohols, aliphatic alcohol ethoxylates, aliphatic alcohol esters and aliphatic alcohol ethers, fatty acid ethoxylates, fatty acid amides and fatty acid esters, hydrocarbon oils (eg mineral oil), squalane, fluorinated Examples include emollients, silicone oils (eg, dimethicone), and mixtures thereof.

  In the fixing agent, the emollient mainly remains on the surface of the fibrous structure and / or sanitary tissue product and / or on the surface treatment composition on the surface of the fibrous structure and / or sanitary tissue product. Agents that may prevent the emollient migration into the fibrous structure are included to facilitate the transfer of the lotion composition to the user's skin. The immobilizing agent may function as a viscosity increasing agent and / or a gelling agent.

  Non-limiting examples of suitable fixing agents include waxes (eg, ceresin wax, ozokerite, microcrystalline wax, petroleum wax, Fischer-Tropsch wax, silicone wax, paraffin wax), aliphatic alcohols (Eg, cetyl and / or stearyl alcohol), fatty acids and their salts (eg, metal stearates), mono and polyhydroxy fatty acid esters, mono and polyhydroxy fatty acid amides, silica and silica derivatives, gels Examples include agents, thickeners, and mixtures thereof.

  In one example, the lotion composition comprises at least one fixative and at least one emollient.

  In one example, the lotion composition comprises a sucrose ester of a fatty acid.

  The lotion composition may be added to the fibrous structure at any point during the papermaking and / or conversion process. In one example, the lotion composition is added to the fibrous structure during the conversion process.

  Since the lotion composition may contain a migratory agent, it can be considered to be a migratable lotion composition. The transferable lotion composition comprises at least one transferable agent that can be transferred to an opposing surface, such as the user's skin, during use. In one example, at least 0.1% of the transferable lotion present on the user contact surface transfers to the user's skin during use. The amount of transferable composition that is transferred to the user's skin during use is determined by the Tegaderm Tapes available from 3M (3M) after the user has used the fibrous structure and / or sanitary tissue product. Tape) for the transferable composition or one component in the transferable composition, assuming that all components of the transferable composition transfer evenly. Can be obtained by a known method such as analyzing the above.

  Other optional ingredients that can be included in the lotion composition include vehicles, fragrances, particularly perfumes and / or persistent fragrances, antibacterial active substances, antiviral active substances, disinfectants, pharmaceutically active substances, film formation Agents, deodorants, opacifiers, astringents, solvents, cooling sensate agents and the like. Specific examples of components of the lotion composition include camphor, thymol, menthol, chamomile extract, aloe vera, calendula, α-bisalbolol, vitamin E, vitamin E acetate.

In one example of a lotion composition of the present invention, the melting point of the lotion composition is greater than about 35 ° C. By way of example, the lotion composition is a substantial amount of the lotion composition (eg, an amount greater than 30% and / or greater than 40% and / or greater than 50% and / or greater than 60%). Must be exposed to temperatures above about 35 ° C. before it dissolves. This can be expressed as:
(1) ΔH ² / ΔH ¹ is about 1 or more, and / or about 4 or more, and / or about 9 or more, and / or (2) ΔH ² is about 30 J / g or more, 40 J / g, and / Or about 60 J / g or more (especially when ΔH ¹ is 0),
Here, ΔH ¹ is energy required to raise the temperature of the lotion composition from 15 ° C. to 35 ° C., and ΔH ² is the temperature of the lotion composition from 35 ° C., so that the lotion composition is completely liquefied. The energy required to increase the temperature to less than 100 ° C., or to a temperature below 100 ° C. where no further melting occurs if the lotion composition contains a component that melts only above 100 ° C.

ΔH is measured by DSC techniques using standard parameters known to those skilled in the art. DSC data was obtained using a Thing Albert DSC 2920 instrument calibrated with a metallic indium standard with a melting onset temperature of 156.6 ° C. and a heat of fusion of 6.80 cal / gram as reported in the literature. It is done. The sample was first heated to 100 ° C. at a rate of 10 ° C./min, equilibrated at 100 ° C. for 5 minutes, cooled to −30 ° C. at a rate of −2.5 ° C./min, and 5 at −30 ° C. After equilibrating for minutes, the melt properties are evaluated by finally heating from −30 ° C. to + 100 ° C. at a rate of 2.5 ° C./min. When obtaining ΔH ¹ and ΔH ² , the last heating gradient is used. ΔH ¹ is the area surrounded by the DSC curve from 15 ° C. to 35 ° C. and the baseline, and ΔH ² is the temperature at which the lotion composition is completely liquefied from 35 ° C. or the lotion composition is 100 ° C. In the case of including a component that melts only above the temperature, the area surrounded by the DSC curve and the baseline up to a temperature of less than 100 ° C. at which no further melting occurs. By way of example, the lotion composition of the present invention comprises about 40% stearyl alcohol, about 30% mineral oil and about 30% petrolatum, with a ΔH ² / ΔH ¹ value greater than 9 and a ΔH ² value of Over 60 J / g.

In one example, the lotion composition is user contacted on the surface of the fibrous structure and / or sanitary tissue product and / or on the surface treatment composition present on the surface of the fibrous structure and / or sanitary tissue product. It is present at a concentration of at least about 0.5 g / m ² and / or at least about 1.0 g / m ² and / or at least about 1.5 g / m ² per working surface. In another example, the lotion composition is on the surface of the fibrous structure and / or sanitary tissue product and / or on the surface treatment composition present on the surface of the fibrous structure and / or sanitary tissue product. From about 0.5 g / m ² to and / or from about 1.0 g / m ² to and / or from about 1.5 g / m ² to about 10 g / m ² and / or about 8 g / to m ^2, and / or present in a concentration of up to about 6 g / m ^2.

Vehicle As used herein, “vehicle” is used to dilute and / or emulsify the agent that forms the surface treatment composition and / or lotion composition to form a dispersion / emulsion. It is a substance that can The vehicle may be included in the surface treatment composition and / or in the lotion composition, particularly upon application of the surface treatment composition and / or upon application to the fibrous structure. The components may be dissolved in the vehicle (true solution or micelle solution), or the components may be dispersed throughout the vehicle (dispersion or emulsification). Suspension or emulsion vehicles are typically their continuous phase. That is, other components of the dispersion or emulsion are dispersed throughout the vehicle at the molecular level or as individually separated particles.

  Suitable materials for use as the vehicle of the present invention include hydroxyl functional liquids, including but not limited to water. In one example, the lotion composition is less than about 20% w / w, and / or less than about 10% w / w, and / or less than about 5% w / w, and / or less than about 0.5% w / w. Including a vehicle such as water. In one example, the surface treatment composition can be greater than about 50% w / w and / or greater than about 70% w / w and / or greater than about 85% w / w and / or about 95% w / w. Vehicles such as water, including greater than w and / or greater than about 98% w / w are included.

Processing aids Processing aids may also be used in the lotion compositions of the present invention. Non-limiting examples of suitable processing aids include brighteners such as TINOPAL CBS-X® available from CIBA-GEIGY of Greensboro, NC Is mentioned.

  Non-limiting examples of lotion compositions

＊ 米国、シンシナティのプロクター・アンド・ギャンブル・ケミカルズ社（Procter & Gamble Chemicals）より入手可能
＊＊ クロンプトン社（Crompton Corporation）より入手可能
ローション組成物の融点は約５１℃であり、５６℃でのその溶融粘度は、ずり速度０．１ １／ｓで測定すると約１７ｍ・Ｐａｓ（m*Pas）である。この配合に使用した鉱油の粘度は、２０℃で約２１ｍＰａ・ｓである。ローション組成物は、繊維性構造体の片面又は両面に、３．６ｇ／ｍ²、４．２ｇ／ｍ²、６ｇ／ｍ²、７．２ｇ／ｍ²、８．４ｇ／ｍ²及び１１．４ｇ／ｍ²の合計付加濃度で適用することができる。

* Available from Procter & Gamble Chemicals, Cincinnati, USA ** Available from Crompton Corporation The melting point of the lotion composition is about 51 ° C and its The melt viscosity is about 17 m · Pas (m * Pas) when measured at a shear rate of 0.1 1 / s. The viscosity of the mineral oil used for this blending is about 21 mPa · s at 20 ° C. The lotion composition has 3.6 g / m ² , 4.2 g / m ² , 6 g / m ² , 7.2 g / m ² , 8.4 g / m ² and 11. It can be applied at a total additive concentration of 4 g / m ² .

Process for treating fibrous structures and / or sanitary tissue products a. Migratory agent and / or surface treatment composition:
Any contact or non-contact application suitable for applying the migratory agent and / or surface treatment composition, eg spraying, dipping, padding, printing, slot extrusion, rotogravure printing, flexographic printing, offset printing, screen Using printing, masking or stencil application methods, and mixtures thereof, migrating agents and / or surface treatment compositions can be applied to fibrous structures and / or sanitary tissue products and / or fibrous structures and / or It can be applied to lotion compositions present on the surface of sanitary tissue products. The migratory agent and / or surface treatment composition may be applied to the fibrous structure and / or sanitary tissue product before, simultaneously with, or after applying the lotion composition to the fibrous structure and / or sanitary tissue product. Can be applied. If the migratory agent and / or surface treatment composition is applied to a layered fibrous structure and / or an outer layer of a sanitary tissue product comprising the layered fibrous structure, in particular during papermaking and / or It can be applied during conversion.

  In one example, the surface treatment composition is applied in an application method that provides a relatively large surface area coverage on the surface of the fibrous structure and / or sanitary tissue product. Examples of such suitable methods of application include, but are not limited to, printing with fine particles, slot extrusion, and / or spraying (although spraying is intended to achieve a large area coverage). Have the disadvantage of producing aerosols).

b. Migratory drug and / or lotion composition:
Any contact or non-contact application suitable for applying the migratory agent and / or lotion composition, e.g. spraying, dipping, padding, printing, slot extrusion, rotogravure, flexographic printing, offset printing, screen printing, Using a mask or stencil application method and mixtures thereof, the migratory agent and / or lotion composition can be applied to the fibrous structure and / or sanitary tissue product and / or the fibrous structure and / or sanitary tissue product. It can be applied to a surface treatment composition present on the surface of The migratory agent and / or lotion composition may be applied to the fibrous structure and / or sanitary tissue before, simultaneously with, and / or after applying the surface treatment composition to the fibrous structure and / or sanitary tissue product. It can be applied to products. In one example, the migratory agent and / or lotion composition is applied to a surface treatment composition that is present on the surface of the fibrous structure and / or sanitary tissue product.

  In one example, the migratory agent and / or lotion composition is a surface treatment composition present on the surface of the fibrous structure and / or sanitary tissue product and / or on the surface of the fibrous structure and / or sanitary tissue product. Above, the area of the surface treatment composition and the area of the lotion composition are applied in an application method that provides a relatively small surface area coverage so as to provide a surface for user contact. Examples of such suitable application methods include, but are not limited to, spraying, particularly spraying with a rotating disk, printing, slot extrusion with stripes and / or other patterns.

  In one example, the surface treatment composition may be added to a fiber furnish that forms the outer layer of the multilayer fibrous structure. The migratory agent and / or lotion composition may be applied to the surface formed by the outer layer of the multilayer fibrous structure.

  In one example, the surface treatment composition is applied to the surface of the fibrous structure during the method of manufacturing the fibrous structure, for example, before and / or after drying of the fibrous structure. The migratory agent and / or lotion composition may then be applied to the surface treatment composition on the surface of the fibrous structure during the conversion process.

  In one example, the surface treatment composition is less than about 5%, and / or less than about 3%, and / or less than about 1%, and / or less than about 0.5% at the time the lotion composition is applied. Contains moisture.

Application of the migratory agent and / or lotion composition to the fibrous structure:
In one example, the migratory agent and / or lotion composition is applied to the fibrous structure and / or sanitary tissue product immediately after the surface treatment composition is applied to the surface of the fibrous structure. The range of fibrous structures and / or sanitary tissue products spanning two operations was about 5 meters. Commercial rotary spray application system RFT-Compact-III with applicator heads for the tissue and textile industry Weitman & of Leinfelden Echterdingen, Germany A modification of Conrad (available from Weitmann & Konrad GmbH & Co KG) was used to carry out the present invention. The application head is provided with 5 sets of rotating disks (1/1 type), and the effective application width is 448 mm. The coating head housing was replaced with water heated walls at the top, bottom and rear of the coating head. As a result, the entire unit was isolated from the outside. These two modified application heads were placed facing each other so that both sides of the fibrous structure and / or sanitary tissue product could be processed simultaneously. A heating unit with a built-in pump (model W60 / 10-12 / 40 available from Kelviplast GmbH, Germany) is used to supply the application unit with water of the desired temperature. In particular, the design of the heating member was selected so that the temperature inside the coating head was within ± 2 ° C. of the target temperature. The infeed of the migrating agent and / or lotion composition by the application head is connected to a heated pump via a heat traced piping system, the pump being heat tracked ( heat traced) and connected to a heated 100 liter tank through which the molten migratory drug and / or lotion composition is contained. The return pipe of the applicator returns to the heated tank. A heated flow meter was installed in the lotion composition supply line between the pump and the application head. The flow meter (Promass 63M, available from Endress & Hauser, Switzerland) is connected to the controller of the RFT-Compact-III system. As a result, the system is used to control the migratory drug and / or lotion composition pump (Labu Brox gear pump) to apply the desired migratory drug and / or lotion composition flow rate. Supplied to the head.

  The setting, shape and dimensions of the rotating surface in the commercial application head are not changed at all. Each set of rotating surfaces consisted of two rotating disks stacked on top of each other. The supply of migrating agent and / or lotion composition to the two rotating surfaces of each laminate is evenly distributed. The disk has a diameter of about 98 mm. Five separate stacks of rotating surfaces are spaced about 112 mm apart. The first, third, and fifth sets of rotating surfaces are staggered vertically with the second and fourth stacks of rotating surfaces to avoid collisions between horizontally overlapping droplet streams. A set of rotating surfaces is commercially available from Weitmann & Konrad GmbH & Co, Germany (1/1 type, product number 618996 [upper set] and product number 618997 [lower set]). . The applicator is operated horizontally with a spacing of about 154 mm between the fibrous structure and / or sanitary tissue product and the center of the disc. The fibrous structure and / or sanitary tissue product is moved vertically between the two application heads. If the space between the rotating surface and the fibrous structure and / or sanitary tissue product is controlled by the housing window, each laminate on the rotating surface will have two laminates outside the rotating surface of the applicator that are only targeted by 112 mm. Except for a transverse width of about 224 mm on the fibrous structure and / or sanitary tissue product. At each position, the flow of the two laminates on the rotating surface overlaps. An even distribution over the individual disk stacks was achieved using a 1 mm diameter throttle installed between the feed to the rotating disk and the central supply line of the applicator. The temperature of the migratory agent and / or lotion composition is controlled to a predetermined value by heating the temperature in the tank, piping and application head to a target value. The flow rate is adjusted to obtain the desired additional amount of fibrous structure. During application, the fibrous structure and / or sanitary tissue product is typically kept at room temperature. The migratory agent and / or lotion composition solidifies almost immediately after impacting the fibrous structure and / or sanitary tissue product.

Test Method A. Migration Test Method for Migration Agent The migration amount and / or migration efficiency of the migration agent to the opposite surface can be measured by the following method.

  First, the amount of lotion present in and / or on the surface of the fibrous structure is determined. Methods for determining such quantities are known in the art, such as PNMR and near infrared spectroscopy. An example of a method is described in US Pat. No. 6,261,580, the description of which is incorporated herein by reference in the relevant part.

  Next, the amount of lotion transferred to the opposing surface is obtained. Methods for determining this are also known in the art. U.S. Pat. No. 6,261,580 describes an example of such a method.

  The amount of migratory drug transferred from the treated tissue product can be obtained with the Sutherland Rub Tester (available from Testing Machines, Inc., Amityville, NY) Ask. The machine uses a motor to rub the treated tissue sample 5 times on the impermeable transition surface. Some of the migrating drug that has migrated from the treated tissue is extracted from the migrating surface and the amount migrated is determined using gas chromatography.

  Prior to conducting a migration test for migratory agents, the fibrous structure sample to be tested must be conditioned according to TAPPI method # T402OM-88. Here, the sample is preconditioned for 24 hours at a relative humidity of 10-35% and a temperature range of 22-40 ° C. After this pre-humidification step, the sample needs to be conditioned for 24 hours at a relative humidity of 48-52% and a temperature range of 22-24 ° C. Transition tests also need to be performed in a room with constant temperature and humidity.

  Next, a sheet of 76 cm (30 inch) × 101 cm (40 inch) Crescent # 300 cardboard from Cordage Inc. of Cincinnati, Ohio is prepared. Using a paper cutter, cut six pieces of cardboard with dimensions of 5.7 cm x 18.4 cm (2.25 inches x 7.25 inches). Draw two lines parallel to the short dimension at 1.125 inches from the top and bottom edges of the white side of the cardboard. Using a straight ruler as a guide, carefully cut the entire length of the line with a razor blade. The score line is made to a depth of about half of the total thickness of the paper. This score line allows the cardboard / felt combination to be firmly combined around the weight of the Sutherland Rub tester. Draw an arrow that runs parallel to the long dimension of the cardboard on the side of the cardboard where the score line is inserted.

  Next, six black felts (F-55 or equivalent manufactured by New England Gasket, Bristol, Conn.) Were 5.7 cm x 21.6 cm x 1.6 cm (2.25 inches). Cut to dimensions of 8.5 inches x 0.0625 inches. The felt is placed on the green side of the cardboard where there is no cut line so that both the felt and cardboard long edges are parallel and aligned. Make sure that the fluff side of the felt is facing up. In addition, it should extend about 0.5 inches from the top and bottom edges of the cardboard. Cut the fibrous structure sample to the same dimensions as the felt and place it centered on the felt. Fold the overhanging edges so that they fit snugly, and use tape (preferably 3M Scotch® tape from St. Paul, Minnesota) to place the sample and felt on the cardboard Affix to the back side to complete the felt / cardboard / sample preparation.

A 1.8 kilogram (4 pound) weight is placed on an effective contact area of 4 cm ² (26 cm ² ) at a contact pressure of 6.8 kPa (1 psi). The contact pressure can be changed by replacing the rubber pad attached to the face of the weight, so the manufacturer (Brown Inc., Mechanical Services Department, Kalamazoo, Michigan) It is important to use only supplied rubber pads. These pads must be replaced if they become hard, wear or peel.

  When not in use, the weight should be positioned so that the pad does not support the full weight of the weight. It is best to store the weight on its side.

  When measuring the actual tissue / cardboard combination, place the transition surface (glass reflector) against the holding pin on the floor plate of the tester. The presser pin prevents the mirror from moving during the test.

  The calibration felt / cardboard / sample is clamped on a 4 pound weight so that the cardboard side contacts the weight pad. Make sure the cardboard / felt / tissue combination rests flat against the weight. This weight is hung on the arm of the testing machine. The felt / cardboard / tissue sample must rest flat on the mirror and be in 100% contact with the mirror surface.

  The tester is then activated by pressing the “push” button. At the end of 5 strokes, the tester will automatically stop.

  Remove the weight with cardboard covered with felt. Examine the tissue sample. If it is torn, discard the felt and tissue and start over. If the tissue sample is intact, remove the felt-covered cardboard from the weight. For accurate measurements, repeat with 3 more felt / cardboard / tissue samples to check that sufficient lotion has transferred.

  The above process is repeated to generate 6 replicates for each test condition.

  After measuring all conditions, remove and discard all felt. Do not reuse felt strips. Cardboard is used until it bends, tears, weakens or no longer has a smooth surface.

  Each mirror is washed once into a beaker with a 4 milliliter aliquot of toluene. The extract is transferred to a sample vial and dried using dry nitrogen. The second time, the mirror is washed with a 2 milliliter aliquot of toluene and the liquid is transferred and dried as described above.

  Next, 1 milliliter of toluene is added to each sample vial and the vial is sealed. The vial is then gently agitated to dissolve the transferred mirror extract. Thereafter, the concentration of the migratory drug in the dissolved extract is determined using known gas chromatographic techniques.

  As is often done in the art, the gas chromatograph instrument constant is determined by determining the recovery constant of the migratory drug (for the wash and transfer steps) using a known standard sample.

  The amount of migratory drug determined by chromatographic analysis is divided by the recovery constant to estimate the amount of migratory drug on the mirror. Report results in milligrams.

B. Relative concentration of composition in surface test method
The relative concentration of the composition on the surface of the fibrous structure and / or sanitary tissue product can be determined using near infrared spectroscopy, particularly when the sample comprises a hydrocarbon-containing composition. Near-infrared spectroscopy can use a filter photomer or other near-infrared device, but must be configured for backscatter detection. Use a suitable wavelength.

  A fibrous structure and / or sanitary tissue product is placed under the near infrared device to obtain a reading. The sample is then turned over to obtain a reading from the other side of the sample.

  In addition to near infrared spectroscopy, mid infrared spectroscopy using suitable equipment and wavelengths may be used to determine the relative concentration of the composition on the surface of the fibrous structure and / or sanitary tissue product. .

  All documents cited in “Best Mode for Carrying Out the Invention” are incorporated herein by reference in their relevant parts, and any citation of any document shall be considered prior art with respect to the present invention. It should not be construed as acceptable.

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

The schematic explanatory drawing of the fibrous structure by this invention. Sectional drawing taken along line 2-2 in FIG. Sectional drawing of another example of the fibrous structure by this invention. Sectional drawing of another example of the fibrous structure by this invention. Sectional drawing of another example of the fibrous structure by this invention. The schematic explanatory drawing of another example of the fibrous structure by this invention.

Claims (11)

  A fibrous structure comprising a migrating agent, wherein the migrating agent is such that more than 6% by weight of the migrating agent is transferred from the fibrous structure to the surface during use by a user. A fibrous structure that coexists in a structure.   The fibrous structure of claim 1, wherein the fibrous structure comprises less than 50% by weight of the migratory agent of the fibrous structure. The migratory drug coexists on the user contact surface present on the surface of the fibrous structure, preferably the migratory drug coexists on the user contact surface at less than 10 g / m ² . The fibrous structure according to claim 1.   The migratory agent is present in a lotion composition comprising a compound selected from the group consisting of hydrocarbons, fatty acid esters, alcohol ethoxylates and mixtures thereof, preferably the lotion composition is softened The fibrous structure according to claim 1, comprising an agent.   The fibrous structure according to claim 1, wherein the migratory drug comprises a skin care agent.   The migratory agent is present at a higher concentration on the surface of the fibrous structure compared to the interior of the fibrous structure, preferably the migrating agent is the entire surface area of the surface of the fibrous structure. The fibrous structure according to claim 1, wherein less than is coated. The surface of the fibrous structure contains a surface treatment composition, preferably the surface treatment composition comprises polymers, hydrocarbons, waxes, oils, silicones, quaternary ammonium compounds, fluorocarbons. class, substituted C ₁₀ -C ₂₂ alkanes, substituted C ₁₀ -C ₂₂ alkenes, polyols, sugar derivatives, and a surface treatment agent selected from the group consisting of mixtures according to claim 6 Fibrous structure.   The fibrous structure according to claim 7, wherein the fibrous structure exhibits a degree of flexibility greater than that of a fibrous structure that does not include the migratory agent.   The fibrous structure of claim 1, wherein the migrating agent comprises a medical agent, and a clinically beneficial amount of the medical agent is transferable from the fibrous structure to a user's skin.   A single-ply or multi-ply sanitary tissue product comprising the fibrous structure of claim 1.   Including coexisting the migratory agent in the fibrous structure that needs to be treated so that more than 6% by weight of the migrating agent is transferred from the fibrous structure to the surface during use by a user A method of treating a fibrous structure with a migratory agent to produce the fibrous structure according to any one of claims 1-9.

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