KR100676794B1 - Absorbent Tissues Providing Skin Barrier Enhancement - Google Patents

Abstract

A lipid-reinforced oil-based hydrophobic melt composition comprising natural fats or oils, sterols or sterol derivatives, emulsifying surfactants having a HLB value in the range of about 3 to about 6, wetting agents, emollients, waxes and thickeners, may be applied to the surface (s) of the tissue ) And then re-stocking the composition to distribute the solid composition on the tissue surface (s), thereby producing tissue products with improved skin barrier properties, such as cosmetic tissue, toilet tissue or paper towels. Can be.

Natural fats, natural oils, sterols, sterol derivatives, emulsifying surfactants, wetting agents, emollients, waxes, thickeners, skin barriers, tissues, hydrophobic, lipids

Description

Absorbent Tissues Providing Skin Barrier Enhancement}

The present invention relates to the inclusion of hydrophobic lotions with lipid reinforcement on absorbent tissue products such as cosmetic tissues, toilet tissues, paper towels and the like. More specifically, the present invention relates to improving skin barrier action by delivering an oil based hydrophobic composition from an absorbent tissue product to the skin.

The stratum corneum is the outermost layer of the skin, regulating the skin's water content and acting as a barrier to chemicals and other stressors found in the environment. The complex arrangement of lipids in the intercellular space of the stratum corneum serves to establish the usual barrier function. In addition to some other minor lipids, the multilayer structure of cholesterol, ceramides and fatty acids provides a major barrier to the migration of hydrophilic substances into or through the skin. The link between blocking action and skin health is evident from skin inflammation caused by the extraction of lipids from the skin.

Skin barrier can be impaired by many mechanisms. Physical polishing, for example caused by repeatedly rubbing an absorbent tissue product onto the skin, exfoliates the skin layer and thus impairs skin barrier. Biological fluids such as urine, feces, nasal and vaginal secretions may contain various components that can impair skin barrier. Examples of such ingredients include proteases, lipases, bile acids and fatty acids. Once the skin barrier is impaired, in addition to these components, other components in the biological fluid can also cause or exacerbate skin irritation.

Excessive hydration also negatively affects skin barrier. Frequent contact with the skin, such as nasal secretions, can increase skin hydration. Increased skin hydration destroys skin lipid tissue in the stratum corneum. Such destruction increases the skin penetration of the stimulant, thus increasing the risk of skin inflammation.

Absorbent tissue products, such as cosmetic tissues and toilet tissues, have been used to absorb body fluids and keep skin dry. However, in addition to absorbing fluids, absorbent tissues wear away the skin during use, often do not keep the skin completely dry and do not completely remove the fluid that the tissue is trying to absorb. For example, the skin may peel off and appear red during frequent blowing of the nose or around the anus, and painful contact. In order to reduce damage to the skin, tissue additive compositions can be applied to the tissue, which additive composition provides lubricity to leave the tissue smoothly moving on the surface of the skin or is deposited on the skin leaving the tissue.

Once deposited on the skin, these additive compositions provide benefits to the skin by blocking the skin. Thus, even if the underlying stratum corneum is still damaged, this composition provides a short term advantage by providing an artificial barrier.                 

Therefore, what is needed in the art is a composition that, when applied from an absorbent tissue, improves skin barrier properties by delivering lipid chemicals and minimizes the physical damage caused by rubbing the absorbent tissue on the skin surface.

Summary of the Invention

An oil based hydrophobic composition comprising a natural fat or oil, a sterol or sterol derivative, a wetting agent, an emulsifying surfactant having a HLB value in the range of about 3 to about 6, an emollient, a wax, and optionally a thickener, is then applied onto the tissue, and then the composition It has been found that stock remediation improve absorbent tissue products can be prepared by restocking such that solid deposits are distributed, preferably evenly, onto the tissue surface (s). Since the composition is solid at room temperature, it solidifies rapidly after deposition and has a low tendency to penetrate or migrate into the sheet. Compared to tissues treated with the liquid composition, a greater proportion of the added anhydrous solid lotion composition remains on the surfaces of the tissues and they can contact and move the user's skin to provide improved skin health benefits. Furthermore, since the composition is effectively disposed on substantially the surface of the product, smaller amounts can be used to provide the same benefits at lower cost.

In one aspect, the present invention provides oils in the range of about 0.1 to about 95 weight percent of natural fats or oils, about 0.1 to about 10 weight percent of sterols or sterol derivatives, about 0.5 to about 20 weight percent of wetting agents, and HLB values in the range of about 3 to about 6. An oil based composition comprising about 1 to about 20 weight percent heavy water emulsifying surfactant, about 5 to about 95 weight percent softener, about 5 to 95 weight percent wax, and optionally about 0 to about 25 weight percent thickener. The melting point of the composition is from about 30 ° C. to about 100 ° C. and the processing viscosity exceeds about 50 centipoise. In addition, the penetration hardness of the composition is from about 5 millimeters to about 360 millimeters.

In another aspect, the invention provides about 0.1 to about 95 weight percent natural fat or oil, about 0.1 to about 10 weight percent sterol or sterol derivative, about 0.5 to about 20 weight percent humectant, and an HLB value in the range of about 3 to about 6 Of an oil based composition comprising about 1 to about 20 weight percent phosphorus water-in-oil emulsifying surfactant, about 5 to about 95 weight percent softener, about 5 to about 95 weight percent wax, and optionally about 0 to about 25 weight percent thickener. Provided are tissues or towel products comprising solidified deposits on one or both sides of the outer surface. The melting point / solidification point of the composition is from about 30 ° C. to about 100 ° C. and the processing viscosity exceeds about 50 centipoise. In addition, the transmission hardness of the composition is from about 5 millimeters to about 360 millimeters.

In another aspect, the invention comprises (a) natural fats or oils, sterols or sterol derivatives, wetting agents, water-in-oil emulsifying surfactants, emollients, waxes, and optionally thickeners having an HLB value ranging from about 3 to about 6, Heating and melting a composition that improves skin barrier to a temperature above its melting point, (b) uniformly applying the molten composition to one or both sides of the tissue or towel in spaced apart deposits, and (c ) A method of making a tissue or towel product comprising the steps of solidifying deposits of the molten composition. The melting point of the composition is about 30 ° C to about 100 ° C.

One embodiment of the invention is a tissue or towel product having two outer surfaces. One or both outer surfaces of the product include solidification deposits of the composition that improve skin barrier properties. The composition comprises about 0.1 to about 95 weight percent natural fat or oil, about 0.1 to about 10 weight percent sterol or sterol derivative, about 1 to about 20 weight percent water-in-oil emulsifying surfactant having an HLB value in the range of about 3 to about 6, About 0.5 to about 20 weight percent wetting agent, about 5 to about 95 weight percent softener, about 5 to about 95 weight percent wax, and about 0 to about 25 weight percent thickener.

The melting point of the composition is about 30 ° C to about 100 ° C. The penetration hardness of the composition is from about 5 millimeters to about 360 millimeters. The amount of the composition added is about 0.5 to about 30 weight percent based on the weight of the product. In addition, the amount of the composition added may be expressed in about 0.1 grams to about 30 grams per square meter of tissue or towel product, more preferably from about 0.5 g / m 2 to about 25 g / m 2.

Natural fats or oils used in the composition may include sunflower oil, borage oil, avocado oil. Sterols or sterol derivatives used in the composition may include soy sterol, cholesterol or lansterol. Wetting agents used in the compositions may include glycerin, sorbitol or starch hydrolysates. Emulsifying surfactants used in the compositions may include sorbitan oleate, sorbitan trioleate or sorbitan stearate. Emollients used in the compositions may include petrolatum, mineral oil or stearyl alcohol. Waxes used in the composition may include cerasin, ozokerite or microcrystalline wax. Thickeners used in the compositions may include ethylene / vinyl acetate copolymers or polyethylene.

Another embodiment of the invention provides a skin barrier comprising (a) natural fats or oils, sterols or sterol derivatives, wetting agents, emulsifying surfactants, emollients, waxes, and thickeners having an HLB value ranging from about 3 to about 6 Heating and melting the composition to improve its temperature to a temperature above its melting point, (b) uniformly applying the molten composition to one or both sides of the tissue or towel in the form of spaced apart deposits, and (c) the A method of making a tissue or towel product having two outer surfaces, the method comprising restocking deposits of the melt composition.

The melting point of the composition is about 30 ° C to about 100 ° C. The penetration hardness of the stocked composition is from about 5 millimeters to about 360 millimeters. The molten composition may be applied by a printing method.

Another embodiment of the present invention provides water-in-oil emulsifying surfactants having a range of about 0.1 to about 95 weight percent natural fat or oil, about 0.1 to about 10 weight percent sterol or sterol derivative, and an HLB value in the range of about 3 to about 6. Skin barrier properties, including from about 20 weight percent, wetting agent about 0.5 to about 20 weight percent, about 5 to about 95 weight percent emollient, about 5 to about 95 weight percent wax, and about 0 to about 25 weight percent thickener. To improve the composition.

The melting point of the composition is about 30 ° C to about 100 ° C. The penetration hardness of the stocked composition is from about 5 millimeters to about 360 millimeters.

The natural fats or oils of the composition are avocado oil, apricot oil, babassu oil, borage oil, camellia oil, canola oil, castor oil, camomile oil, coconut oil, corn oil, cottonseed oil, golden oak Oils, hemp seed oil, hardened cottonseed oil, hardened palm kernel oil, maleated soybean oil, meadowfoam oil, palm kernel oil, phospholipids, rapeseed oil, palmitic acid, stearic acid, linoleic acid, rose fruit oil, Safflower oil, sunflower oil, soybean oil, sweet almond oil, PROLIPID 141 (patent blend of glyceryl stearate, fatty acids, fatty alcohols and phospholipids), or derivatives of natural fats or oils such as stearyl alcohol, lauryl alcohol , Myristyl alcohol, and benenyl alcohol, etc.), and mixtures thereof (PROLIPID is I, Wayne, NJ). Commercially available from nternational Specialty Products, Inc. PROLIPID is generally described in US Pat. No. 5,849,315 (Rerek et al.), filed December 15, 1998, which is to the extent relevant to this specification. Is incorporated herein by reference).

The sterols or sterol derivatives of the composition may be selected from the group consisting of cholesterol, cytosterol, stigmasterol, ergosterol, lansterol, soy sterol, avocado sterol, sterol esters and the like and mixtures thereof. The emulsifying surfactant of the composition may be selected from the group consisting of sorbitan oleate, sorbitan sesquioleate, sorbitan stearate, sorbitan tristearate, sorbitan trioleate, and the like, and mixtures thereof.

Wetting agents of the composition may be selected from the group consisting of glycerin, hydrogenated starch hydrolyzate, propylene glycol, sodium PCA, sodium lactate, sorbitol, and the like, and mixtures thereof. The emollient of the composition may be selected from the group consisting of mineral oil, petrolatum, stearyl alcohol, cetearyl alcohol, cetyl alcohol, behenyl alcohol, octyldodecanol, cosmetic esters and the like and mixtures thereof.

The wax of the composition may be selected from the group consisting of carnuba, cerasin, cetyl ester, microcrystalline wax, montan wax, wax, synthetic wax and the like and mixtures thereof. The thickener of the composition may be selected from the group consisting of polyolefin resins, polyolefin polymers, ethylene / vinyl acetate copolymers, polyethylene and the like and mixtures thereof.

The amount of natural fat or oil used in the composition may be about 0.1 to about 95 weight percent. The amount of sterol or sterol derivative used in the composition may be about 0.1 to about 10 weight percent. The amount of emulsifying surfactant used in the composition may be about 1 to about 20 weight percent. The amount of wetting agent used in the composition may be about 0.5 to about 20 weight percent. The amount of emollient used in the composition may be about 5 to about 95 weight percent. The amount of wax used in the composition may be about 5 to about 95 weight percent. The amount of thickener used in the composition may be about 0 to about 25 weight percent.

One embodiment of the composition comprises about 10% by weight sunflower oil, about 0.8% by weight soy sterol, about 1% by weight sorbitan oleate, about 5% by weight glycerin, about 43.2% by weight petrolatum, about 20% by weight stearyl alcohol and cera About 20% by weight.

One embodiment of another composition includes about 10 weight percent borage oil, about 0.8 weight percent soy sterol, about 1 weight percent sorbitan oleate, about 5 weight percent glycerin, about 43.2 weight percent petrolatum, about 20 weight stearyl alcohol % And about 20% cerasin by weight.

One embodiment of another composition includes about 10% by weight avocado oil, about 0.8% by weight soy sterol, about 1% by weight sorbitan oleate, about 5% by weight glycerin, about 43.2% by weight petrolatum, about 20% by weight stearyl alcohol And about 20 wt% cerasin.

One embodiment of another composition includes about 2% by weight PROLIPID 141 (International Specialty Products, Wayne, New Jersey), about 10% by weight sunflower oil, about 1% by weight soy sterol, about 1% by weight sorbitan oleate, about glycerin 5 weight percent, about 32 weight percent of petrolatum, about 15 weight percent of behenyl alcohol, about 32 weight percent of cerasin and about 2 weight of viscous polyethylene.

One embodiment of another composition includes about 2% by weight of PROLIPID 141 (International Specialty Products, Wayne, New Jersey), about 30% by weight sunflower oil, about 3% by weight soy sterol, about 5% by weight sorbitan oleate, about sorbitol 5% by weight, about 10% by weight of petrolatum, about 10% by weight of behenyl alcohol, about 30% by weight of wormwood and about 5% by weight of polyethylene.

One embodiment of another composition includes about 5% by weight lanolin, about 20% by weight sunflower oil, about 3% by weight cholesterol, about 5% by weight sorbitan stearate, about 5% by weight hydrogenated starch hydrolyzate, about 5% by weight petrolatum , About 5% by weight octyldodecanol, about 15% by weight stearyl alcohol, about 30% by weight microcrystalline wax and about 5% by weight ethylene / vinyl acetate copolymer.                 

One embodiment of another composition includes about 27% by weight avocado oil, about 3% by weight avocadodine or avocado sterol, about 2% by weight sorbitan trioleate, about 15% by weight glycerin, about 17% by weight petrolatum, about cetyl alcohol 18 weight percent and about 18 weight percent cerasin.

One embodiment of another composition includes about 15% by weight avocado oil, about 5% by weight sterol ester, about 10% by weight sorbitan trioleate, about 8% by weight glycerin, about 2% by weight petrolatum, blend of zewi and cetyl ester About 55 weight percent and about 5 weight percent polyethylene. The blend of the wax and cetyl ester comprises about 90% by weight of the wax and about 10% by weight cetyl ester.

One embodiment of another composition includes about 25% by weight of borage oil, about 10% by weight avocadodine or avocado sterol, about 5% by weight sorbitan trioleate, about 1% by weight glycerin, about 11% by weight petrolatum, stearyl About 10% alcohol, about 36% cerasin and about 2% polyethylene.

One embodiment of another composition includes about 25% sunflower oil, about 3% lanasterol, about 2% sorbitan trioleate, about 5% glycerine, about 15% petrolatum, about 10% stearyl alcohol %, About 10% by weight behenyl alcohol, about 45% by weight microcrystalline wax and about 5% by weight polyethylene.

One embodiment of another composition includes about 35% by weight avocado oil, about 3% by weight cytosterol, about 5% by weight sorbitan trioleate, about 5% by weight glycerin, about 1% by weight petrolatum, about 10% by weight stearyl alcohol About 21% by weight and about 10% by weight polyethylene.

Another embodiment of the present invention is a method for improving / recovering / maintaining a skin blocking function of a user. This method

(a) contacting a user's skin with a tissue or towel product comprising a skin barrier improvement / recovery / maintenance composition and providing the benefit of improving / recovering / maintaining skin barrier when the composition is delivered to the user's skin Steps,

(b) delivering at least a portion of the composition while using the tissue or towel product, and

(c) sufficient to improve / recover / maintain skin barrier properties of the skin area in contact with the tissue or towel compared to skin in contact with an equivalent tissue or towel product that does not include the skin barrier improvement / recovery / maintenance composition. Repeating steps (a) and (b) with one or more additional tissues or towel products in frequency.

The skin barrier improvement / recovery / maintenance composition of the method comprises about 0.1 to about 95 weight percent of natural fat or oil, about 0.1 to about 10 weight percent of sterol or sterol derivative, and water-in-oil emulsification with HLB value in the range of about 3 to about 6. About 1 to about 20 weight percent surfactant, about 0.5 to about 20 weight percent wetting agent, about 5 to about 95 weight percent softener, about 5 to about 95 weight percent wax and about 0 to about 25 weight percent thickener.

The melting point of the composition may be about 30 ° C to about 100 ° C. The processing viscosity of the stocking composition may exceed 50 centipoise. The penetration hardness of the stocking composition may be about 5 to about 360 millimeters. The method may further comprise the step of the user using a tissue or towel product comprising the skin barrier improvement / recovery / maintenance composition at each time of use. The method may further comprise the user intermittently using a tissue or towel product that does not include a skin barrier improvement / recovery / maintenance composition. The method may further comprise using the tissue or towel product comprising the skin barrier improvement / recovery / maintenance composition at a frequency sufficient for a user with damaged skin to improve skin barrier.

The amount of natural fats or oils or mixtures of natural fats or oils in the oil based hydrophobic composition may be about 0.1 to about 95 weight percent, more specifically about 5 to about 75 weight percent, more specifically about 10 to about 50 weight percent. Can be. As used herein, the term natural fats or oils is understood to include fats, oils, essential fats, fatty acids, fatty alcohols, phospholipids and mixtures thereof. Stable natural fats or oils as used herein include, but are not limited to, the following substances classified according to the CTFA definition.

Fatty and oils : apricot seed oil, avocado oil, babassu oil, borage seed oil, butter, C ₁₂ -C ₁₆ acid triglycerides, camellia oil, canola oil, caprylic / capric / lauric triglycerides, caprylic / Capric / linoleic triglycerides, caprylic / capric / stearic triglycerides, caprylic / capric triglycerides, carrot oil, cashew oil, castor oil, cherry pit oil, chia oil, cocoa butter, coconut oil, cod liver oil , Corn seed oil, corn oil, cotton seed oil, C ₁₀ -C ₁₈ triglycerides, egg oil, epoxidized soybean oil, evening primrose oil, glyceryl triacetyl hydroxystearate, glyceryl triacetyl ricinoleate, glycospin ring Feeds, grape seed oil, hazelnut oil, human placenta lipid, mixed safflower oil, mixed sunflower seed oil, hardened castor oil, hardened castor oil Lau Sites, hardened coconut oil, hardened cottonseed oil, hardened C ₁₂ -C ₁₈ triglyceride acids, hardened fish oil, hardened lard, herring hardened oil, hardened mink oil, orange curing reopi (Roughy) oil, hardened palm kernel oil, hardened palm oil , Hardened peanut oil, hardened shark liver oil, hardened soybean oil, hardened resin, hardened vegetable oil, lard, lauric / palmitic / oleic glycerides, lanolin and lanolin derivatives, resquarella oil, flaxseed oil, macadamia nut oil, maleic acid Chlorinated Soybean Oil, Meadowfoam Seed Oil, Herring Oil, Mink Oil, Moringa Oil, Mortierella Oil, Shellfish Oil, Oleic / Linoleic Triglycerides, Oleic / Palmetic / Lauric / Mystic / Linoleic Triglycerides, Ol Leo Stearin, Olive Peel Oil, Olive Oil, Omental Lipid, Orange Rough Oil, Palm Core Oil, Palm Oil, Peach Seed Oil, Peanut Oil, Penguin D'Zambi Oil, Pentades Hemp Butter, Phospholipids, Pistachio Nut Oil, Placental Lipids, Rapeseed Oil, Rice Bran Oil, Safflower Oil, Sesame Oil, Shark Liver Oil, Shea Butter, Soybean Oil, Spinach Feed, Sunflower Seed Oil, Sweet Almond Oil, Tall Oil, Resin ( Tallow), Tribehenin, Tricaprine, Tricapryline, Triheptanoin, Trihydroxymethoxystearin, Trihydroxystearin, Triisononanoin, Triisostearin, Trilaurin, Trilinolein, Tri Linolenin, Trimyristin, Trioctanoin, Triolein, Tripalmitin, Tricevacin, Tristearin, Triundecanoine, Vegetable Oil, Walnut Oil, Wheat Bran Lipid, Wheat Germ Oil, Jadaria Oil, etc. mixture.

Fatty acids : arachidic acid, arachidonic acid, behenic acid, capric acid, caproic acid, caprylic acid, coconut acid, cornic acid, cottonseed acid, hardened coconut acid, hardened menhadic acid, hardened resin acid, hydride Oxy stearic acid, isostearic acid, lauric acid, linoleic acid, linolenic acid, flaxseed acid, myristic acid, oleic acid, palmitic acid, palm nucleic acid, perlargonic acid, ricinoleic acid, soybean acid, stearic acid , Tol lactic acid, resin acid, undecanoic acid, undecylenic acid, wheat germ acid, and the like and mixtures thereof.

Fatty alcohols : behenyl alcohol, C ₉ -C ₁₁ alcohols, C ₁₂ -C ₁₃ alcohols, C ₁₂ -C ₁₅ alcohols, C ₁₂ -C ₁₆ alcohols, C ₁₄ -C ₁₅ alcohols, capryl Ric alcohol, cetearyl alcohol, cetyl alcohol, coconut alcohol, decyl alcohol, cured resin alcohol, lanolin alcohol, lauryl alcohol, myristyl alcohol, oleyl alcohol, palm alcohol, palm kernel alcohol, stearyl alcohol, resin alcohol, Tridecyl alcohol and the like and mixtures thereof.

Essential oils : Anise oil, peppermint oil, basil oil, bee balm oil, bergamot oil, birch oil, bitter almond oil, bitter orange oil, marigold oil, California nutmeg oil, fennel oil, kara Damon Oil, Chamomile Oil, Cinnamon Oil, Sage Oil, Clove Leaf Oil, Clove Oil, Coriander Oil, Evergreen Oil, Eucalyptus Oil, Fennel Oil, Gardenia Oil, Geranium Oil, Ginger Oil, Grapefruit Oil, Oils, hip oils, citrus oils, jasmine oils, juniper oils, kiwi oils, laurel oils, lavender oils, lemongrass oils, lemon oils, linden oils, herbaceous oils, mandarin orange oils, matricaria oils Rose Oil, Nut Mug Oil, Olivanum, Orange Blossom Oil, Orange Oil, Patchouli Oil, Penny Royal Oil, Peppermint Oil, Pine Oil, Pine Wood Oils, rose fruit oil, rosemary oil, rose oil, rouge oil, sage oil, sambucus oil, sandalwood oil, camphor oil, fir oil, spearmint oil, marjoram oil, violet oil, tar oil, tea tree oil, thyme oil , Wild mint oil, spruce oil, ylang-ylang oil and the like and mixtures thereof.

Preferred natural oils are avocado oil, apricot oil, babasu oil, borage oil, camellia oil, canola oil, castor oil, coconut oil, corn oil, cottonseed oil, evening primrose oil, hardened cottonseed oil, hardened palm kernel oil, male Acidified soybean oil, meadowfoam oil, palm kernel oil, phospholipids, rapeseed oil, palmitic acid, stearic acid, linoleic acid, rose fruit oil, sunflower oil, soybean oil, prolipid 141 (glyceryl stearate, fatty acid, fatty alcohol And derivatives of natural fats or oils (e.g., stearyl alcohol, lauryl alcohol, myristyl alcohol, benenyl alcohol, etc.), and mixtures thereof, as patent blends of phospholipids, Wayne, NJ). Including but not limited to these.

The amount of sterols or sterol derivatives or mixtures of sterols or sterol derivatives in the oil based hydrophobic composition is about 0.1 to about 10 weight percent, more specifically about 0.5 to about 5 weight percent, even more specifically about 0.8 to about 1 Weight percent. Suitable sterols and sterol derivatives used in the present invention include β-sterols having a tail at position 17 and not having a polar group such as cholesterol, cytosterol, stigmasterol and ergosterol, and C ₁₀ -C ₃₀ cholesterol Lanosterol esters, cholecalciferol, cholesteryl hydroxystearate, cholesteryl isostearate, cholesteryl stearate, 7-dehydrocholesterol, dihydrocholesterol, dihydrocholesteryl octyldecano Ate, dihydrolanosterol, dihydrolanosteryl octyldecanoate, ergocalciferol, tall oil sterol, soy sterol acetate, lansterol, soy sterol, avocado sterols, sterol esters and the like and natural extracts (e.g. avocadine And lanolin, and the like, and mixtures thereof.

The amount of water-in-oil emulsifying surfactant / surfactant combination in the oil based hydrophobic composition, having an HLB value in the range of about 3 to about 6, is about 1 to about 20 weight percent, more specifically about 2 to about 10 weight percent, and more specifically And from about 3 to about 8 weight percent. Emulsifying surfactants are typically used in cosmetic preparation to shape emulsions of various components. Difficult to mix phases, for example water and non-mixing phases such as water soluble / water dispersible materials, are dispersed in small droplets in a continuous phase such as oil.

Preferred surfactants include, but are not limited to, sorbitan monooleate, glyceryl stearate, sorbitan sequioleate, sorbitan trioleate, sorbitan stearate, sorbitan tristearate, and the like, and mixtures thereof. Do not.                 

The amount of wetting agent in the oil based hydrophobic composition may be about 0.5 to about 20 weight percent, more specifically about 1 to about 15 weight percent, even more specifically about 3 to about 10 weight percent. Wetting agents are components of typical cosmetics used to increase the moisture content of the outermost layer of the skin. This group of materials includes hygroscopic components. Suitable wetting agents used in the present invention 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, Cured Honey, Hydrogenated Starch Hydrolyzate, Hydrolyzed Corn Starch, Lactamide MEA, Lactic Acid, Lactose Lysine PCA, Mannitol, Methyl Gluses-10, Methyl Gluses-20, PCA, PEG-2 Lactamide, PEG-10 Propylene Glycol, Polyamino Sugar Concentrate, Potassium PCA, Propylene Glycol, Propylene Glycol Citrate, Sugar Hydrolyzate, Sugar Isomerate , Sodium asphaltate, sodium lactate, sodium PCA, sorbitol, TEA-lactate, TEA-PCA, urea, xylitol, and the like and mixtures thereof But it is not limited to.

Preferred humectants include, but are not limited to, glycerin, hydrogenated starch hydrolyzate, polypropylene glycol, sodium PCA, sodium lactate, sorbitol, and the like and mixtures thereof.

The amount of emollient in the oil based hydrophobic composition may be about 5 to about 95 weight percent, more specifically about 15 to about 80 weight percent, even more specifically about 20 to about 65 weight percent. Suitable emollients used in the present invention include mineral oils, mineral jelly, petrolatum, cosmetic esters (isopropyl palmitate, isopropyl myristate, isopropyl adipate, C ₁₂ -C ₁₄ benzoate, stearyl benzoate, bee Heyl benzoate, octyl palmitate and the like), glyceryl esters, alkoxylated carboxylic acids, alkoxylated alcohols, fatty alcohols (lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, cetearyl alcohol, Behenyl alcohol, octyl dodecanol, etc.), lanolin and lanolin derivatives, natural oils, base oils, silicones, silicones with organic groups, cured vegetable oils, and the like and mixtures thereof.

Preferred softeners include, but are not limited to, mineral oils, petrolatum, cosmetic esters, fatty alcohols, and the like and mixtures thereof.

The amount of wax in the oil based hydrophobic composition may be about 5 to about 95 weight percent, more specifically about 10 to about 75 weight percent, even more specifically about 20 to about 60 weight percent. Suitable waxes used in the present invention include natural and synthetic waxes, such as bayberry wax, beeswax, C ₃₀ alkyl dimethicone, candelilla wax, carnuaba, ceresin, cetyl esters, hardened cottonseed oil, hardened jojoba (jojoba) oil, hardened jojoba wax, hardened microcrystalline wax, hardened rice bran wax, Japan wax, jojoba butter, jojoba esters, jojoba wax, lanolin wax, microcrystalline wax, mink wax, montan wax, montan wax , Ouricury wax, wax, paraffin, PEG-6 beeswax, PEG-8 beeswax, rice bran wax, shellac wax, grain ground wax, sterilic dimethicone synthetic beeswax, synthetic candelilla wax, synthetic carnuba wax, Synthetic japan wax, synthetic jojoba wax, synthetic wax, and the like and mixtures thereof.

Preferred waxes include, but are not limited to, carnuba, cerasin, cetyl esters, microcrystalline wax, montan wax, wax, synthetic wax, and the like and mixtures thereof.

Optionally, the amount of thickener in the oil based hydrophobic composition may be from about 0 to 25 wt%, more specifically from about 5 to about 20 wt%, even more specifically from about 10 to about 15 wt%. Suitable thickeners used in the present invention include, but are not limited to, polyolefin resins, polyolefin polymers, ethylene / vinyl acetate copolymers, polyethylene, and the like and mixtures thereof.

When the composition is heated to the melting point of the composition or slightly above it, the oil based molten hydrophobic composition can be reconsidered almost instantaneously without an external cooling device such as a chill roll. However, if necessary, an external device such as a chill roll can be used before or after application of the melt to accelerate inventory. Such instantaneous re-stocking tends to prevent the composition from penetrating into the tissue and thus maintain the composition on the surface of the tissue, which is desirable. For example, it may be advantageous to make the temperature of the melt composition as high as about 10 ° C. or less, more specifically about 5 ° C. or less, even more specifically about 2 ° C. or less, above the melting point. As the temperature of the melt composition approaches the melting point, the viscosity of the melt composition generally increases, which further increases the tendency for the melt composition to remain on the surface.                 

The term "melting point" as used herein is the temperature at which most of the melting occurs, recognizing that the melting actually occurs over a range of temperatures. Melting points of the compositions of the present invention may be from about 30 ° C to about 100 ° C, more specifically from about 40 ° C to about 90 ° C, even more specifically from about 50 ° C to about 70 ° C.

In addition, the term "penetration hardness" as used herein refers to needle penetration in millimeters according to ASTM D 1321, ie, "needle penetration of petrolatum wax". Lower needle penetration hardness values correspond to harder materials. The penetration hardness of the compositions of the present invention may be from about 5 to about 360 millimeters, more specifically from about 5 to about 200 millimeters, more specifically from about 5 to about 150 millimeters, and even more specifically from about 5 to about 100 millimeters. (Compositions with needle penetration hardness greater than 360 millimeters cannot be measured using the ASTM D 1321 method).

The hardness of the compositions of the present invention is important for two reasons. First, the softer the composition, the more fluid the composition will be and the easier it will be to move into the inner layer of the tissue, which is undesirable. Second, softer compositions tend to make the feel more slippery and smudged, which is also undesirable. In general, compositions having a needle penetration hardness of about 200 to about 360 millimeters are less smooth and creamy to slightly smooth (depending on the additive). Compositions with a needle penetration hardness of about 5 to about 200 millimeters are very smooth and silky or creamy (depending on the additive).                 

Melting point viscosity and / or processing temperature viscosity of the compositions and compositions of the present invention are important for two reasons. First, the higher the melting point viscosity or processing temperature viscosity when applied to the outer surface of the diaper liner, the less the composition tends to penetrate into the inner layer (s) of the tissue. The less the composition penetrates into the tissue, the more amount remains on the surface of the tissue so that it can easily migrate to the user's skin surface. Second, the higher the viscosity of the composition at the melting point or higher of the composition, the less the composition will migrate under typical or adverse storage conditions.

In order to further increase the benefit of consumers, additional ingredients are used. The classification of components and their corresponding benefits include anti-acne activators (medicines used to reduce the number of acne scratches, acne pimples, blackheads and whiteheads), antifoams (the tendency for bubbles to develop during processing). Antimicrobial actives, antifungal agents, preservatives, antioxidants (products to inhibit oxidation of natural oils or other composition ingredients), astringent cosmetics (causes skin tightening or tingling sensation), astringent drugs ( Drugs that coagulate proteins to prevent secretion, release and bleeding when applied to skin or mucous membranes, biological additives (products containing vitamins increase performance or consumer popularity), colorants (coloring products) , Deodorants (reduces or removes unpleasant odors from the body surface and prevents the formation of odors), emollients (retained on the skin surface or in the stratum corneum, lubricant Acts on the skin by reducing skin exfoliation and improving skin appearance, thereby helping to maintain a smooth, smooth and supple skin appearance, and a film former (forming a continuous film on the skin when dry). Ingredients), fragrances (enchanting consumers), natural moisturizing agents (NMF) and other moisturizing ingredients known in the art, skin conditioning agents, skin release agents (alpha hydroxy acids and beta hydrides) Ingredients that increase the rate of skin cell conversion, such as hydroxy acids, skin protectants (medicines that protect damaged or exposed skin or mucosal surfaces from harmful or annoying irritation), solvents (known to be useful for cosmetics or pharmaceuticals) Liquids used to dissolve the components), sunscreens (in the ultraviolet range of wavelengths from 290 to 420 nanometers). Ultraviolet light of longer wavelength than the absorbed light, but at least 85%, and 420 nanometers component to pass), and the surfactant acids (including, but a cleaning agent flow, flow agents, suspension agents and wetting agents omphalocele acids) are not limited to.

The total amount of the composition added to the tissue may be about 0.5 to about 40 weight percent, more specifically about 5 to about 30 weight percent, and even more specifically about 10 to about 15 weight percent based on the weight of the tissue. . The amount added depends on the particular composition and the desired effect that the composition on the product contributes. The preferred method for evenly applying the heated composition to the surface of the tissue web is direct or indirect (offset) rotogravure printing, which is a more accurate printing process that gives the best control over the distribution and speed of movement of the composition. to be. However, other printing methods such as, for example, flexographic printing methods or spray methods such as WEKO can also be used, but are not limited to these.

In this specification, although not explicitly mentioned, all stated amounts, temperatures, molecular weights and transmission hardness are intended to include all subranges within the stated ranges.                 

The compositions of the present invention may be applied to all or a portion of the outer surface (s) of tissue and towel products. The compositions of the present invention may be applied unevenly to the outer surfaces of tissues and towel products. As used herein, the term “non-uniformity” refers to the amount, pattern of distribution, thickness of application, area of non-application, and the like, with respect to which the composition may vary in the outer surface (s) of the tissue and towel.

The term "tissue product" as used herein may also be a cosmetic tissue, a toilet tissue, a paper towel, a table napkin, or the like. The tissue product of the present invention may be one, two, three or more. In all cases, after the product is dried, the composition is applied to one or both sides of the outer surface of the product. The composition can be applied after or before combining the layers. Each of the layers can be layered, mixed with one another (homogeneously), creped or uncreped, aeration dried or wet pressed.

The following examples are presented to more fully understand the present invention. Specific materials and parameters are exemplary and are not intended to limit the scope of the invention.

The following compositions were used in Examples 1-4.

Composition 1 weight% vaseline 93.7% glycerin 5% PROLIPID 141 (International Specialty Products, Wayne, NJ) 1.0% Tocopherol acetate 0.3%

Composition 2 weight% vaseline 88.7% glycerin 5% PROLIPID 141 (International Specialty Products, Wayne, NJ) 1.0%                                      Tocopherol acetate 0.3% Avocadodine (CRODA) 5.0%

Composition 3 weight% vaseline 83.7% glycerin 5% Tocopherol acetate 0.3% Sunflower oil 9.2% Soybean Sterols 0.8% PROLIPID 141 (ISP) (International Specialty Products, Wayne, NJ) 1.0%

Composition 4 weight% vaseline 100%

Composition 5 weight% vaseline 85.4% glycerin 5% Glyceryl Monooleate 3% Borage Oil 3% Soybean Sterols 3% Aloe 0.3% Tocopherol acetate 0.3%

Composition 6 weight% vaseline 86.4% glycerin 5% Glyceryl Monooleate 3% Borage Oil 3% Soybean Sterols One% PROLIPID 141 (ISP) (International Specialty Products, Wayne, NJ) 1.0% Aloe 0.3% Tocopherol acetate 0.3%

Composition 7 weight% vaseline 44% Mineral oil 10.8% Cerasin 10% Stearyl alcohol 25% Isopropyl Palmitate 3% Sunflower oil 3% Soybean Sterols 3% Dimethicone One% Aloe extract 0.1% Vitamin E Acetate 0.1%

Composition 8 weight% vaseline 36% Mineral oil 10.8% Cerasin 10% Stearyl alcohol 25% glycerin 5% Glycerin Monooleate 3% Isopropyl Palmitate 3% Sunflower oil 3% Soybean Sterols 3% Dimethicone One% Aloe extract 0.1% Vitamin E Acetate 0.1%

Example 1

Lipid-reinforcing compositions for treating absorbent tissues promote blockade recovery as measured by TEWL.

All studies were conducted in a room with controlled temperature and humidity (71 ° ± 5 ° F; 40% ± 5% relative humidity).

Water loss through the epidermis (TEWL)

The palm forearm of 24 test subjects was peeled off with emery cloth to increase the TEWL rating to 18-20 g / m ² h. After attrition, 15 microliters of lipid-reinforced composition was applied topically to the palm forearm. TEWL measurements were taken after 1, 2 and 4 hours using a Dermalab evaporimeter. The average TEWL value is shown in Table 1. Repeated measurement ANOVA was used to adjust repeated TEWL measurements.

TEWL (g / m ² / hr) result-lipid reinforced absorbent tissue composition PIR average 1 hour average 2 hour average 4 hour average Composition 1 19.8 6.6 * 6.6 * 7.9 * Composition 2 18.3 6.4 * 6.6 * 7.3 * Composition 3 19.2 6.5 * 6.5 * 7.1 * Untreated 19.2 15.2 14.3 14.3

* Indicates markedly different cases than untreated sites

The above data clearly demonstrates that lipid adjuvant compositions improve skin barrier recovery.

Example 2

Lipid reinforcing compositions for treating absorbent tissues enhance skin moisturization as measured by conductance.

All studies were conducted in a room with controlled temperature and humidity (71 ° ± 5 ° F; 40% ± 5% relative humidity).

Conductance

15 microliters of lipid reinforcing composition for absorbent tissue was topically applied to the palm forearm. Conductance measurements were taken at 1, 2, 4 and 6 hours using a skicon apparatus. Conductance average values are shown in Table 2. Pair-wise comparisons were applied for each time period using single-variable ANOVAs.

Conductance-Lipid Reinforcement Compositions for Absorbent Tissues Standard time average 1 hour average 2 hour average 4 hour average 6 hour average Composition 1 202 370 * 357 * 335 * 310 * Composition 2 220 334 * 349 * 333 * 319 * Composition 3 220 342 * 340 * 333 * 320 * Untreated 200 220 235 232 223

* Indicates markedly different cases than untreated sites

The data clearly demonstrates that lipid reinforcing compositions improve skin barrier moisturizing action.

Example 3

Lipid reinforcing compositions for treating absorbent tissues enhance skin moisturization as measured by conductance.

All studies were conducted in a room with controlled temperature and humidity (71 ° ± 5 ° F; 40% ± 5% relative humidity).

conductance

15 microliters of absorbent tissue composition supplemented with lipids were applied topically to the palm forearm. Conductance measurements were taken at 1, 2, 4 and 6 hours. The average conductance values at 4 h and 6 h after baseline are shown in Table 3. Pair-wise comparisons were applied for each time period using single-variable ANOVAs.

Conductance-Absorbent Tissue Compositions Standard time average 4 hour average 6 hour average Composition 4 187 243 247 Composition 5 179 281 * 289 * Composition 6 195 295 * 297 * Untreated 194 210 215

* Indicates markedly different cases than untreated sites

The data clearly demonstrates that lipid reinforcing compositions improve skin barrier moisturizing action.

Example 4

Rubbing repeatedly with absorbent tissue treated with a hydrophobic lipid-reinforced composition reduces barrier damage compared to untreated absorbent tissue.

Absorbent tissue treated with a hydrophobic lipid-reinforced composition was repeatedly rubbed on the face and TEWL was measured to determine the extent of barrier damage. The experiment consisted of rubbing the faces of ten test subjects with absorbent tissues in a total of 15 cycles. The rubbing cycles were timed approximately 30 minutes between each rubbing cycle consisting of 20 rubs. Dermalab evaporimeter was used to measure the baseline TEWL value and TEWL values after every two rub cycles for each subject. For each treatment the change in the TEWL value between the rub cycles was measured.

process Estimated TEWL Increment / Rubber Cycle Absorbent Tissue Treated with Composition 7 4.2 * Absorbent tissue treated with composition 8 4.3 * Untreated absorbent tissue 6.4

* Indicates statistical difference from untreated absorbent tissue

Rubbing repeatedly with an absorbent tissue treated with a hydrophobic composition enriched in lipids impairs skin barrier less than an untreated absorbent tissue.

That is, the present examples representatively illustrate that the lipid-reinforced hydrophobic composition of the present invention can provide an absorbent tissue product that provides not only improved softness but also improved skin barrier protection. Thus, the different aspects of the present invention can advantageously provide an absorbent tissue product having a softer and improved skin barrier protective action than conventional tissue products. The absorbent tissue products may be advantageously used for absorbent tissue products such as cosmetic tissues, toilet tissues, paper towels and the like.

While detailed description of the specific aspects of the present invention, it will be understood that those skilled in the art can easily conceive of modifications, changes, and equivalents of the above embodiments. Accordingly, the scope of the invention should be assessed as that of the appended claims and any equivalents thereto.

Claims (69)

Having two outer surfaces, one or both of which have a solidification deposit of the composition which improves skin barrier properties, the composition comprising 0.1 to 95% by weight natural fat or oil, 0.1 to 10% by weight sterol or sterol derivative %, 1 to 20% by weight of water-in-oil emulsifying surfactant having an HLB value of 3 to 6, 0.5 to 20% by weight of wetting agent, 5 to 95% by weight of softener, 5 to 95% by weight of wax, and 0 to 25% by weight of thickener. Tissue or towel products. The product of claim 1 wherein the melting point of the composition is from 30 ° C. to 100 ° C. 3. The product according to claim 1 or 2, wherein the penetration hardness of the composition is from 5 millimeters to 360 millimeters. The product according to claim 1 or 2, wherein the amount of the composition added is 0.5 to 30% by weight based on the weight of the product. The product according to claim 1 or 2, wherein the amount of the composition added is 0.1 gram to 30 grams per square meter of the product. The product of claim 1 or 2, wherein the natural fat or oil is sunflower oil. The product of claim 1 or 2, wherein the natural fat or oil is a borage oil. The product of claim 1 or 2, wherein the natural fat or oil is avocado oil. The product of claim 1 or 2, wherein the sterol or sterol derivative is soy sterol. The product according to claim 1 or 2, wherein the sterol or sterol derivative is cholesterol. The product according to claim 1 or 2, wherein the sterol or sterol derivative is lanasterol. The product according to claim 1 or 2, wherein the humectant is glycerin. The product of claim 1 or 2, wherein the humectant is sorbitol. The product of claim 1 or 2, wherein the humectant is a hydrogenated starch hydrolyzate. The product of claim 1 or 2, wherein the emulsifying surfactant is sorbitan oleate. The product of claim 1 or 2, wherein the emulsifying surfactant is glyceryl stearate. The product of claim 1 or 2, wherein the emulsifying surfactant is sorbitan stearate. The product according to claim 1 or 2, wherein the softener is petrolatum. The product of claim 1 or 2, wherein the softener is a mineral oil. The product of claim 1 or 2, wherein the softener is stearyl alcohol. The product of claim 1 or 2, wherein the wax is cerasin. The product of claim 1 or 2, wherein the wax is ozokerite. The product of claim 1 or 2, wherein the wax is microcrystalline wax. The product of claim 1 or 2, wherein the thickener is an ethylene / vinyl acetate copolymer. The product according to claim 1 or 2, wherein the thickener is polyethylene. delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete (a) a composition for improving skin barrier properties comprising natural fats or oils, sterols or sterol derivatives, wetting agents, emulsifying surfactants having an HLB value in the range of 3 to 6, emollients, waxes and thickeners, to a temperature above its melting point Melting step, (b) applying the molten composition to one or both surfaces of a tissue or towel web, and (c) refining the molten composition; a method of making a tissue or towel product having two outer surfaces. 56. The method of claim 55, wherein the melting point of the composition is 30 ° C to 100 ° C. The method of claim 55 or 56, wherein the penetrating hardness of the stocked composition is between 5 and 360 millimeters. 57. The method of claim 55 or 56, wherein the molten composition is applied by a printing method. 0.1 to 95% by weight of natural fats or oils, 0.1 to 10% by weight of sterols or sterol derivatives, 1 to 20% by weight of water-in-oil emulsifying surfactants having HLB values in the range of 3 to 6, 0.5 to 20% by weight of wetting agents, 5 to 95 A stocked composition that improves skin barrier properties, including weight percent, 5 to 95 weight percent wax, and 0 to 25 weight percent thickener. 60. The composition of claim 59, wherein the melting point of the composition is 30 ° C to 100 ° C. 61. The composition of claim 59 or 60, wherein the penetration hardness of the composition is from 5 millimeters to 360 millimeters. 61. The method of claim 59 or 60, wherein the natural fat or oil is avocado oil, apricot oil, babassu oil, borage oil, camellia oil, canola oil, castor oil, camomile oil, coconut oil. , Corn oil, cottonseed oil, evening primrose oil, hemp seed oil, hydrogenated cottonseed oil, hydrogenated palm kernel oil, maleated soybean oil, meadowfoam oil, palm kernel oil, phospholipid, rapeseed oil, palmitic acid, stearic oil And acid, linoleic acid, rose fruit oil, safflower oil, sunflower oil, soybean oil, sweet almond oil, stearyl alcohol, lauryl alcohol, myristyl alcohol and benenyl alcohol and mixtures thereof. 61. The composition of claim 59 or 60, wherein the sterol or sterol derivative is selected from the group consisting of cholesterol, cytosterol, stigmasterol, ergosterol, lansterol, soy sterol, avocado sterol, sterol esters and mixtures thereof. . 61. The composition of claim 59 or 60, wherein said sterol is selected from natural extracts containing sterols or sterol derivatives selected from the group consisting of lanolin, avocadine and mixtures thereof. 61. The method of claim 59 or 60, wherein the emulsifying surfactant is sorbitan oleate, sorbitan sesquioleate, glyceryl stearate, sorbitan stearate, sorbitan tristearate, sorbitan trioleate and The composition is selected from the group consisting of. 61. The composition of claim 59 or 60, wherein the humectant is selected from the group consisting of glycerin, hydrogenated starch hydrolyzate, propylene glycol, sodium PCA, sodium lactate, sorbitol, and mixtures thereof. 61. The method of claim 59 or 60, wherein the softener is selected from the group consisting of mineral oil, petrolatum, stearyl alcohol, cetearyl alcohol, cetyl alcohol, behenyl alcohol, octyldodecanol, cosmetic esters and mixtures thereof Composition. 61. The method of claim 59 or 60, wherein the wax is selected from the group consisting of carnuba, cerasin, cetyl esters, microcrystalline waxes, montan waxes, waxes, synthetic waxes and mixtures thereof. Phosphorus composition. 61. The composition of claim 59 or 60, wherein the thickener is selected from the group consisting of polyolefin resins, polyolefin polymers, ethylene / vinyl acetate copolymers, polyethylenes and mixtures thereof.