WO2000064501A1 - Articles absorbants doux pour la peau et compositions associees - Google Patents

Articles absorbants doux pour la peau et compositions associees Download PDF

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Publication number
WO2000064501A1
WO2000064501A1 PCT/US2000/010957 US0010957W WO0064501A1 WO 2000064501 A1 WO2000064501 A1 WO 2000064501A1 US 0010957 W US0010957 W US 0010957W WO 0064501 A1 WO0064501 A1 WO 0064501A1
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WO
WIPO (PCT)
Prior art keywords
composition
oil
weight percent
skin
sterol
Prior art date
Application number
PCT/US2000/010957
Other languages
English (en)
Inventor
Duane Gerard Krzysik
David Roland Otts
Beth Anne Lange
Brenda Marie Nelson
Original Assignee
Kimberly-Clark Worldwide, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US09/382,018 external-priority patent/US6475197B1/en
Application filed by Kimberly-Clark Worldwide, Inc. filed Critical Kimberly-Clark Worldwide, Inc.
Priority to KR1020017013461A priority Critical patent/KR20020030264A/ko
Priority to BR0009925-2A priority patent/BR0009925A/pt
Priority to DE10084522T priority patent/DE10084522T1/de
Priority to AU46581/00A priority patent/AU4658100A/en
Priority to GB0126294A priority patent/GB2363721B/en
Publication of WO2000064501A1 publication Critical patent/WO2000064501A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/20—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing organic materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0208—Tissues; Wipes; Patches
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/24—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/34—Oils, fats, waxes or natural resins
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/48—Surfactants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/74—Biological properties of particular ingredients
    • A61K2800/75—Anti-irritant

Definitions

  • the present invention relates to the incorporation of a lipid-enriched hydrophilic lotion on the body facing material of disposable absorbent articles, such as diapers, training pants, adult incontinence products, under pants, and feminine care products, and the like. More particularly, the present invention relates to improving skin health via enhancement of skin barrier function by the delivery of lipids and humectants of a hydrophilic lotion from the body facing material of absorbent articles to the skin.
  • the stratum corneum is the outer-most layer of the skin and is responsible for regulating skin water levels and functioning as a barrier against chemicals and other stressors found in the environment.
  • the complex arrangement of lipids in the intercellular space of the stratum corneum is responsible for the establishment of normal barrier function.
  • Multi-layered structures of cholesterol, ceramides, and fatty acids, as well as some other minor lipids provides the major barrier to the transport of hydrophillic substances into the or through the skin.
  • the link between the barrier function and skin health is apparent from the skin inflammation caused by lipid extraction from the skin.
  • Skin barrier can be damaged due to a number of mechanisms. Physical abrasion, for example caused by the repeated rubbing of abrasive materials, such as absorbent tissues or wipes, on the skin, strips away layers of the skin and thus damages skin barrier.
  • Biological fluids such as urine, feces and vaginal secretions, may contain a variety of components that can damage skin barrier. Examples of these components include proteases, lipases, and bile acids. Once the skin barrier is compromised, these components, in addition to other constituents of biological fluids, can initiate or exacerbate skin inflammation.
  • Diaper dermatitis for example, is a genre of skin conditions that, in large part, originate from impaired barrier function. Impairment of the skin barrier can result from a variety of factors, including; increased skin hydration due to the occlusion of the skin caused by diapers, enzymatic skin damage due to fecal and urinary enzymes, and from physical damage imparted by wiping with a wet wipe.
  • Excessive hydration also has a negative impact on skin barrier.
  • the hydration level of diapered skin may reach between five to ten times that of undiapered skin. Frequent contact of diapered skin with urine may also contribute to increased skin hydration.
  • Increased skin hydration disrupts skin lipid organization in the stratum corneum. This disruption may increase-the skin permeability of irritants from feces and urine, thus increasing the risk of skin inflammation.
  • Diapered skin is normally cleansed several times a day with wipes utilizing solutions containing surfactants.
  • the surfactants can extract lipids from the stratum corneum or disorganize the lipid structure within the stratum corneum, thereby decreasing the barrier function.
  • the wipe material can cause physical damage to the skin and thus lead to decreased barrier function.
  • barrier creams, lotions and ointments are used to provide an artifical hydrophobic barrier on the skin.
  • These products typically contain mineral oils, petrolatum and silicones that are heavy, greasy to the touch, and are typically used to treat, rather than prevent skin irritation.
  • Disposable absorbent articles such as diapers, training pants, adult incontinence products, absorbent under pants, and feminine care products have been used to absorb body fluids and leave the skin dry.
  • Disposable absorbent articles of this type generally comprise a liquid impermeable back sheet member, an absorbent core or assembly, and a liquid permeable bodyside liner. It is the bodyside liner or other body facing material that comes into contact with the wearer's skin. While the body facing material is made of a soft compliant material, it can abrade the skin during use and may not leave the skin completely dry and free of the bodily fluids, such as solid or semi-solid waste, the absorbent article is trying to absorb. During frequent insults of bodily fluids and frequent use of disposable absorbent articles, the skin can become so abraded as to appear red and be sore to the touch.
  • additive formulations can be applied to the body facing material such that, in use, the additive formulation either provides lubricity thereby reducing abrasive contact, or leaves the body facing material and is deposited on the skin where it can soothe the skin.
  • these additive formulations provide a skin benefit by occluding the skin surface due to the hydrophobic waxes present in the formulation.
  • these formulations provide a short-term benefit by providing an artificial barrier, even though the underlying stratum corneum is still damaged.
  • these additive formulations have been liquids or oil based and typically from petroleum (lipophilic materials) based semi-solids or oil based solids at room temperature.
  • the liquid or oil based semi-solid type of formulations require a high amount of formulation added to the body facing material to deliver the benefit of reduced skin irritation and redness because these formulations absorb into a body facing material, leaving less on the surface to provide the benefit.
  • the oil based solid formulations can be applied heated (slightly above the melting point of the formulation) to the surface of a body facing material thereafter resolidifying the formulation on the surface(s) of the body facing material where the formulation is readily available for transfer to the users skin to protect the skin from or prevent further irritation and redness in an efficient cost-effective manner.
  • these formulations are lipophilic, it is sometimes difficult to incorporate hydrophilic or water soluble surfactants, cosmetic materials or active ingredients.
  • a skin barrier enhancing disposable absorbent articles can be made applying, on the outer surface of the body facing material, a melted hydrophilic composition comprising a hydrophilic solvent, a high molecular weight polyethylene glycol, a fatty alcohol (C 14 - C 30 or greater), a humectant, an oil-in-water emulsifying surfactant having an HLB range greater than 7, a sterol or sterol derivative, and a natural fat or oil, and thereafter resolidifying the composition to form a distribution of a melted lipid-enriched hydrophilic composition on the outer surface of the body facing material.
  • a melted hydrophilic composition comprising a hydrophilic solvent, a high molecular weight polyethylene glycol, a fatty alcohol (C 14 - C 30 or greater), a humectant, an oil-in-water emulsifying surfactant having an HLB range greater than 7, a sterol or sterol derivative, and a natural fat or oil
  • the hydrophilic composition is a solid at room temperature and rapidly solidifies after application, it has less tendency to penetrate and migrate into the body facing material. Compared to body facing material treated with liquid formulations, this leaves a greater percentage of the added solid lotion composition on the surface of the body facing material where it can contact and transfer to the user's skin to provide a benefit. Furthermore, a lower add-on amount can be used to deliver the same benefit at a lower cost because of the efficient placement of the composition substantially at the surface of the body facing material of the absorbent articles.
  • the present invention is a hydrophilic composition
  • a hydrophilic composition comprising from about 10 to about 90 weight percent hydrophilic solvent, from about 5 to about 95 weight percent high molecular weight polyethylene glycol (preferably having a molecular weight of about 720 or greater), from about 1 to about 30 weight percent of a C 14 to C 30 or greater fatty alcohol, from about 0.5 to about 30 weight percent of humectant, from about 1 to about 20 weight percent emulsifying surfactant having an HLB range greater than 7, from about 0.1 to about 10 weight percent of sterol or sterol derivative, and from about 0.1 to about 30 weight percent of natural fats or oils.
  • the hydrophilic composition may have a melting point from about 30 °C. to about 100 °C. and a process viscosity of greater than 50 centipoise.
  • the composition may also have a penetration hardness of from about 5 millimeters to 360 millimeters.
  • the present invention is a body facing material wherein the outer surface of the body facing material have solidified deposits of a hydrophilic composition comprising from about 10 to about 90 weight percent hydrophilic solvent, from about 5 to about 95 weight percent high molecular weight (defined as a solid at room temperature) polyethylene glycol (preferably having a molecular weight of about 720 or greater), from about 1 to about 30 weight percent of a C 14 to C 30 or greater fatty alcohol, from about 0.5 to about 30 weight percent of humectant, from about 1 to about 20 weight percent emulsifying surfactant having an HLB range greater than 7, from about 0.1 to about 10 weight percent of sterol or sterol derivative, and from about 0.1 to about 30 weight percent of natural fats or oils.
  • a hydrophilic composition comprising from about 10 to about 90 weight percent hydrophilic solvent, from about 5 to about 95 weight percent high molecular weight (defined as a solid at room temperature) polyethylene glycol (preferably having a molecular weight of about 720 or greater), from about
  • the hydrophilic composition may have a melting/freezing point of from about 30 °C. to about 100 °C. and a process viscosity of greater than 50 centipoise.
  • the composition may also have a penetration hardness from about 5 millimeters of penetration to 360 millimeters of penetration.
  • the present invention is a method of making a body facing material in an absorbent article comprising: (a) heating a composition comprising a hydrophilic solvent, high molecular weight polyethylene glycol, a fatty alcohol, a humectant, an emulsifying surfactant having an HLB range greater than 7, a sterol or sterol derivative, and a natural fat or oil to a temperature above the melting point of the composition, causing the composition to melt; (b) uniformly applying the melted composition to the outer surface of the body facing material web in spaced-apart deposits; and (c) resolidifying the deposits of the melted composition.
  • the hydrophilic composition may have a melting point of from about 30 °C. to about 100 °C.
  • FIGURE 1 representatively shows a partially cutaway, top plan view of an absorbent article according to one embodiment of the present invention.
  • FIGURE 2 representatively shows a partially cutaway, top plan view of an absorbent article according to another embodiment of the present invention.
  • One embodiment of the present invention is a body facing material having an outer surface with solidified deposits of a lipid-enriched hydrophilic composition.
  • the composition may comprise from about 10 to about 90 weight percent hydrophilic solvent, from about 5 to about 95 weight percent high molecular weight polyethylene glycol having a molecular weight of about 720 or greater, from about 1 to about 30 weight percent of a C 14 to C 30 or greater fatty alcohol, from about 0.5 to about 10 weight percent of humectant, from about 1 to about 20 weight percent of oil-in-water emulsifying surfactant having an HLB range greater than 7, from about 0.1 to about 10 weight percent of sterol or sterol derivative, and from about 0.1 to about 30 weight percent of natural fats or oils.
  • the composition may have a melting point from about 30 °C to about 100 °C.
  • the composition may have a process viscosity of greater than about 50 centipoise.
  • the composition may have a penetration hardness of from about 5 millimeters to about 360 millimeters.
  • the add-on amount of the composition may be from about 0.1 grams per meter squared (g/m 2 ) to about 30 g/m 2 of the material, and more preferably from about 0.5 g/m 2 to about 25 g/m 2 .
  • the hydrophilic solvent used in the composition may include water, propylene glycol, a low molecular weight polyethylene glycol, glycerin, or hydrogenated starch hydrolysate.
  • the fatty alcohol used in the composition may include cetyl alcohol, stearyl alcohol, arachidyl alcohol, or behenyl alcohol.
  • the molecular weight of the high molecular weight polyethylene glycol used in the composition may be from about 720 to about 1 ,840,000 daltons, and more specifically from about 1 ,400 to about 440,000 daltons.
  • the high molecular weight polyethylene glycol used in the composition may include polyethylene glycol 1 ,400 daltons, polyethylene glycol 8,000 daltons, or polyethylene glycol 10,000 daltons.
  • the humectant used in the composition may include glycerin, sorbitol, or hydrogenated starch hydrolysate.
  • the surfactant used in the composition may include glyceryl stearate SE, glycol stearate SE, or sorbitan stearate.
  • the sterol or sterol derivative used in the composition may include soy sterol, cholesterol, or lanasterol.
  • the natural fat or oil used in the composition may include sunflower oil, borage oil, or avocado oil.
  • Another embodiment of the present invention is a method of making a soft body facing material having an outer surface comprising: (a) heating a composition comprising a hydrophilic solvent, a high molecular weight polyethylene glycol, a fatty alcohol, a humectant, an oil-in-water emulsifying surfactant having an HLB range greater than 7, a natural fat or oil, and a sterol or sterol derivative, to a temperature above the melting point of the composition, causing the composition to melt; (b) applying said melted composition to said outer surface of a body facing material web in spaced-apart deposits; and (c) resolidifying the deposits of the melted composition.
  • the composition may have a melting point of from about 30 °C to about 100 °C.
  • the composition may have a process viscosity of greater than about 50 centipoise.
  • the resolidified composition may have a penetration hardness of from about 5 to about 360 millimeters.
  • the melted composition may be applied by spraying.
  • the melted composition may be applied by spraying, slot coating, or printing.
  • composition that enhances skin barrier comprising from about 5 to about 90 weight percent hydrophilic solvent, from about 5 to about 95 weight percent high molecular weight polyethylene glycol having a molecular weight of about 720 or greater, from about 1 to about 25 weight percent of a C 14 to C 30 or greater fatty alcohol, from about 0.5 to about 10 weight percent of humectant, from about 1 to about 20 weight percent of oil-in-water emulsifying surfactant having an HLB range greater than 7, and from about 0.1 to about 10 weight percent of sterol or sterol derivative.
  • the composition may have a melting point from about 30 °C. to about 100 °C.
  • the composition may have a process viscosity of greater than about 50 centipoise.
  • the resolidified composition may have a penetration hardness of from about 5 to about 360 millimeters.
  • the hydrophilic solvent of the composition may be selected from the group consisting of: water, propylene glycol, low molecular weight polyethylene glycol, glycerin, sorbitol, hydrogenated starch hydrolysate, silicone glycol, and mixtures thereof.
  • the fatty alcohol of the composition may be selected from the group consisting of: cetyl alcohol, stearyl alcohol, arachidyl alcohol, behenyl alcohol, and mixtures thereof.
  • the high molecular weight polyethylene glycol of the composition may be selected from the group consisting of: polyethylene glycols having a average molecular weight greater than 720 daltons.
  • the humectant of the composition may be selected from the group consisting of: glycerin, propylene glycol, sorbitol, polyethylene glycol, hydrogenated starch hydrolysates, sodium PCA, potassium PCA , sodium lactate, and mixtures thereof.
  • the surfactant of the composition may be selected from the group consisting of: glyceryl stearate SE, glyceryl stearate, glycol stearate SE, glycol stearate, and mixtures thereof.
  • the sterol or sterol derivative of the composition may be selected from the group consisting of: cholesterol, sitosterol, stigmasterol, and ergosterol, lanasterol, soy sterol, avocado sterols, cholesterol esters, sterol esters, and mixtures thereof.
  • the natural fat or oil of the composition may be selected from the group consisting of: avocado oil, apricot oil, babassu oil, borage oil, camellia oil, canola oil, castor oil, coconut oil, corn oil, cottonseed oil, evening primrose oil, hydrogenated cottonseed oil, hydrogenated palm kernal oil, maleated soybean oil, meadowfoam oil, palm kernal oil, phospholipids, rapeseed oil, palmitic acid, stearic acid, linoleic acid, rose hip oil, sunflower oil, soybean oil, derivatives of natural fats or oils (such as stearyl alcohol, lauryl alcohol, myristyl alcohol, benenyl alcohol, and the like), and the like, and mixtures thereof.
  • avocado oil apricot oil, babassu oil, borage oil, camellia oil, canola oil, castor oil, coconut oil, corn oil, cottonseed oil, evening primrose oil, hydrogenated cottonseed oil, hydrogenated palm
  • the amount of the hydrophilic solvent used in the composition may be from about 5 to about 90 weight percent, and more specifically from about 25 to about 75 percent.
  • the amount of the high molecular weight polyethylene glycol used in the composition may be from about 5 to about 95 weight percent, and more specifically from about 15 to about 50 weight percent.
  • the amount of the fatty alcohol used in the composition may be from about 1 to about 30 percent.
  • the amount of the surfactant used in the composition may be from about 1 to about 20 percent.
  • the amount of the sterol or sterol derivative used in the composition may be from about 0.1 to about 10 percent.
  • the amount of said natural fat or oil used in the composition may be from about 0.1 to about 30 percent.
  • composition comprises about 48.2 weight percent propylene glycol, about 20 weight percent polyethylene glycol 8000, about 20 weight percent stearyl alcohol about 5 weight percent glycerin, about 3 weight percent glyceryl stearate SE, about 0.8 weight percent soy sterol, and about 3 weight percent borage oil.
  • compositions comprises about 34 weight percent propylene glycol, about 20 weight percent polyethylene glycol 8000, about 10 weight percent stearyl alcohol, about 10 weight percent behenyl alcohol, about 15 weight percent glycerin, about 5 weight percent propylene glycol oleate SE, about 1 weight percent cholesterol, and about 5 weight percent sunflower oil.
  • compositions comprises about 42.2 weight percent propylene glycol, about 20 weight percent polyethylene glycol 8000, about 20 weight percent stearyl alcohol, about 5 weight percent glycerin, about 2 weight percent glyceryl stearate SE, about 0.8 weight percent soy sterol, and about 10 weight percent borage oil.
  • compositions comprises about 42.2 weight percent propylene glycol, about 20 weight percent polyethylene glycol 8000, about 20 weight percent stearyl alcohol, about 5 weight percent glycerin, about 2 weight percent glyceryl stearate SE, about 0.8 weight percent soy sterol, and about 10 weight percent avocado oil.
  • compositions comprises about 42.2 weight percent propylene glycol, about 20 weight percent polyethylene glycol 8000, about 20 weight percent stearyl alcohol, about 5 weight percent glycerin, about 2 weight percent glyceryl stearate SE, about 0.8 weight percent soy sterol, and about 10 weight percent lanolin oil.
  • compositions comprises about 42.2 weight percent propylene glycol, about 20 weight percent polyethylene glycol 10,000, about 20 weight percent behenyl alcohol, about 5 weight percent glycerin, about 2 weight percent glyceryl stearate SE, about 0.8 weight percent avocadin, and about 10 weight percent sunflower oil.
  • compositions comprises about 32.2 weight percent polyethylene 200, about 20 weight percent polyethylene glycol 1 ,000, about 30 weight percent behenyl alcohol, about 5 weight percent hydrogenated starch hydrolysate, about 2 weight percent glyceryl stearate SE, about 0.8 weight percent avocadin, and about 10 weight percent sunflower oil.
  • compositions comprises about 32.2 weight percent polyethylene 200 about 20 weight percent polyethylene glycol 1 ,000, about 30 weight percent behenyl alcohol, about 5 weight percent hydrogenated starch hydrolysate, about 2 weight percent glyceryl stearate SE, about 0.8 weight percent avocadin, and about 10 weight percent sunflower oil.
  • compositions comprises about 37 weight percent polyethylene 200, about 20 weight percent polyethylene glycol 8,000, about 10 weight percent behenyl alcohol, about 10 weight percent stearyl alcohol, about 5 weight percent hydrogenated starch hydrolysate, about 5 weight percent glycol stearate SE, about 3 weight percent avocado sterols, and about 10 weight percent borage oil.
  • compositions comprises about 20 weight percent polyethylene glycol 200, about 20 weight percent propylene glycol, about 20 weight percent polyethylene glycol 8,000, about 10 weight percent behenyl alcohol, about 10 weight percent stearyl alcohol, about 5 weight percent sodium PCA, about 5 weight percent glycol stearate SE, about 2 weight percent cholesterol, and about 8 weight percent borage oil.
  • Another embodiment of the composition comprises about 42 weight percent polyethylene 200, about 20 weight percent polyethylene glycol 8,000, about 10 weight percent behenyl alcohol, about 10 weight percent stearyl alcohol, about 5 weight percent glycerin, about 5 weight percent glycol stearate SE, about 3 weight percent soy sterol, and about 5 weight percent evening primrose oil.
  • Another embodiment of the present invention is a method for enhancing/restoring/maintaining the skin barrier function of a user.
  • the method comprises the steps of: a) contacting a body facing material on the skin of the user wherein said material comprises a skin barrier enhancing/restoring/maintaining composition that provides a skin barrier enhancing/restoring/maintaining benefit upon transfer of the composition to said user's skin; b) transferring at least a portion of the composition during use of the body facing material; and, c) repeating steps a) and b) with one or more additional body facing material with sufficient frequency to enhance/restore/maintain said skin barrier in an area of skin contacted by the body facing material, relative to skin contacted by an equivalent body facing material that does not comprise the skin barrier enhancing/restoring/maintaining composition.
  • the skin barrier enhancing/restoring/maintaining composition of the method comprises from about 5 to about 90 weight percent hydrophilic solvent, from about 5 to about 95 weight percent high molecular weight polyethylene glycol having a molecular weight of about 720 or greater, from about 1 to about 25 weight percent of a C 14 to C 30 or greater fatty alcohol, from about 0.5 to about 10 weight percent of humectant, from about 1 to about 20 weight percent of oil-in-water emulsifying surfactant having an HLB range greater than 7, and from about 0.1 to about 10 weight percent of sterol or sterol derivative.
  • the composition may have a melting point from about 30 °C. to about 100 °C.
  • the resolidified composition may have a process viscosity greater than about 50 centipoise.
  • the resolidified composition may have a penetration hardness of from about 5 to about 360 millimeters.
  • the method may further comprise using a body facing material having a skin-barrier enhancing/restoring/maintaining composition by the user on each use occasion.
  • the method may further comprise using a body facing material which does not comprise a skin-barrier enhancing/restoring/maintaining composition by the user intermittently.
  • the method may further comprise using the body facing material comprising a skin-barrier enhancing/restoring/maintaining composition by a user whose skin is compromised and with sufficient frequency to improve skin-barrier function.
  • the amount of hydrophilic solvent, including water if present, in the hydrophilic composition can be from about 10 to about 90 weight percent, more specifically from about 25 to about 75 weight percent, more specifically from about 30 to about 60 weight percent.
  • suitable hydrophilic solvents include, but are not limited to, the following materials: water, propylene glycol, low molecular weight polyethylene glycols (molecular weights of less than 720 and liquid at room temperature), methoxyisopropanol, PPG-2 propyl ether, PPG-2 butyl ether, PPG-2 methyl ether, PPG-3 methyl ether, dipropylene glycol propyl ether, dipropylene glycol butyl ether, dipropylene glycol, methyl propanediol, propylene carbonate, water soluble/dispersible polypropylene glycols, ethoxylated polypropylene glycol, glycerin, sorbitol solutions, hydrogenated starch hydrolysate, and silicone glycols
  • the amount of high molecular weight polyethylene glycol in the hydrophilic composition can be from about 5 to about 95 weight percent, more specifically from about 10 to about 50 weight percent, and still more specifically from about 15 to about 25 weight percent.
  • the high molecular weight polyethylene glycol in the hydrophilic lotion compositions of the present invention primarily functions as an immobilizing agent for the hydrophilic solvent and any active ingredient. In addition to immobilizing the solvent, and reducing its tendency to migrate, the high molecular weight polyethylene glycol in the hydrophilic lotion composition provides a tackiness to the hydrophilic lotion composition which improves the transfer to the skin of the wearer.
  • suitable high molecular weight polyethylene glycols include, but are not limited to, the following materials: polyethylene glycols having an average molecular weight of 720 or greater, and the like, as well as mixtures thereof. These materials are not liquid at room temperature. Particularly suitable high molecular weight polyethylene glycols can have an average molecular weight of from 720 to about 1 ,840,000, more specifically from about 1400 to about 440,000, and still more specifically from about 1760 to about 10,570.
  • the amount of fatty alcohol in the hydrophilic composition can be from about 1 to about 30 weight percent, more specifically from about 10 to about 25 weight percent, and still more specifically from about 15 to about 20 weight percent.
  • suitable fatty alcohols include, but not limited to, the following materials: alcohols having a carbon chain length of C 14 -C 30 or greater, including cetyl alcohol, stearyl alcohol, arachidyl alcohol, and behenyl alcohol, and the like as well as mixtures thereof.
  • the amount of humectant in the hydrophilic composition can be from about 0.5 to about 30 weight percent, more specifically from about 1 to about 20 weight percent, and still more specifically from about 5 to about 10 weight percent.
  • Humectants are typically cosmetic ingredients used to increase the water content of the top layers of the skin. This groups of materials includes primarily hydroscopic ingredients.
  • suitable humectants include, but are not limited to, the following materials: Acetamide MEA, Aloe Vera Gel, Arginine PCA, Chitosan PCA, Copper PCA, Corn Glycerides, Dimethyl
  • the amount of oil-in-water emulsifying surfactant having an HLB range greater than 7 in the hydrophilic composition can be from about 1 to about 20 weight percent, more specifically from about 2 to about 15 weight percent, and still more specifically from about 3 to about 10 weight percent.
  • Emulsifying surfactants are employed typically in cosmetic preparations to form emulsions of various components.
  • the immiscible phase, such as an oil is dispersed as droplets in the continuous phase, such as water or in this case the hydrophilic solvent.
  • the preferred surfactants include, but not limited to Emulsifying Wax NF, Glyceryl Stearate, Glyceryl Stearate SE, Glycol Stearate, Glycol Stearate SE, Glycereth-20 Stearate, Glyceryl Behenate, Glyceryl Hydroxystearate, Glyceryl Laurate SE, Glyceryl Oleate, Glyceryl Oleate SE, Propylene Glycol Oleate, Propylene Glycol Oleate SE, Propylene Glycol Stearate, Propylene Glycol Stearate SE, Sorbitan Stearate, Sorbitan Trioleate, and the like, as well as mixtures thereof.
  • the amount of a sterol or sterol derivatives or mixture of sterols and sterol derivatives in the hydrophilic composition can be from about 0.1 to about 10 weight percent, more specifically from about 0.5 to about 5 weight percent, and still more specifically from about 0.8 to about 3 weight percent.
  • suitable sterols and sterol derivatives include, but are not limited to, the following materials: ⁇ -sterols having a tail on the 17 position and having no polar groups, for example cholesterol, sitosterol, stigmasterol, and ergosterol, as well as, C 10 -C 30 cholesterol/lanosterol esters, cholecalciferol, cholesteryl hydroxystearate, cholesteryl isostearate, cholesteryl stearate, 7-dehydrocholesterol, dihydrocholesterol, dihydrocholesteryl octyldecanoate, dihydrolanosterol, dihydrolanosteryl octyldecanoate, ergocalciferol, tall oil sterol, soy sterol acetate, lanasterol, soy sterol, avocado sterols, cholesterol esters, sterol esters, and the like, as well as mixtures thereof.
  • the amount of a natural fat or oil or a mixture of natural fats or oils in the hydrophilic composition can be from about 0.1 to about 30 weight percent, more specifically from about 0.5 to about 20 weight percent, and still more specifically from about 1 to about 10 weight percent.
  • natural fats or oils is understood to include fats, oils, essential oils, fatty acids, fatty alcohols, phopholipids, and mixtures thereof.
  • suitable natural fats or oils include, but are not limited to, the following materials:
  • Fatty Acids Arachidic Acid, Arachidonic Acid, Behenic Acid, Capric Acid, Caproic Acid, Caprylic Acid, Coconut Acid, Corn Acid, Cottonseed Acid, Hydrogenated Coconut Acid, Hydrogenated Menhaden Acid, Hydrogenated Tallow Acid, Hydroxystearic Acid, Isostearic Acid, Why Acid, Linoleic Acid, Linolenic Acid, Linseed Acid, Myristic Acid, Oleic Acid, Palmitic Acid, Palm Kernel Acid, Pelargonic Acid, Ricinoleic Acid, Soy Acid, Stearic Acid, Tall Oil Acid, Tallow Acid, Undecanoic Acid, Undecylenic Acid, Wheat Germ Acid, and the like, as well as mixtures thereof.
  • Fatty Alcohols Behenyl Alcohol, Alcohols, C 12 -C 13 Alcohols, C 12 -C 15 Alcohols, C 12 - C 16 Alcohols, C 14 -C 15 Alcohols, Caprylic Alcohol, Cetearyl Alcohol, Cetyl Alcohol, coconut Alcohol, Decyl Alcohol, Hydrogenated Tallow Alcohol, Lauryl Alcohol, Myristyl Alcohol, Oleyl Alcohol, Palm Alcohol, Palm Kernel Alcohol, Stearyl Alcohol, Tallow Alcohol, Tridecyl Alcohol, and the like, as well as mixtures thereof.
  • Essential Oils 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, Caraway Oil, Cardamom Oil, Chamomile Oil, Cinnamon Oil, Clary Oil, Cloveleaf Oil, Clove Oil, Coriander Oil, Cypress Oil, Eucalyptus Oil, Fennel Oil, Gardenia Oil, Geranium Oil, Ginger Oil, Grapefruit Oil, Hops Oil, Hyptis Oil, Indigo Bush Oil, Jasmine Oil, Juniper Oil, Kiwi Oil, Laurel Oil, Lavender Oil, Lemongrass Oil, Lemon Oil, Linden Oil, Lovage Oil, Mandarin Orange Oil, Matricaria Oil, Musk Rose Oil, Nutmeg Oil, Olibanum, Orange Flower Oil, Orange Oil, Patchouli Oil, Pennyroyal Oil, Peppermint Oil, Pine Oil, Pine Tar Oil, Rose Hips Oil, Rosemary Oil, Rose Oil, Rue Oil, Sage Oil,
  • the hydrophilic composition may contain petrolatum or mineral oil.
  • the amount of petrolatum or mineral oil in the composition can be from about 0 to about 20 weight percent, more specifically from about 0 to aboutlO weight percent, and still more specifically from about 0 to about 5 weight percent.
  • the term 'body facing material' includes, but is not limited to, materials such as: body side liner; elastic material; tissue; intake and distribution material, absorbent material, including, but not limited to coform, woven and nonwoven materials, back sheet liner material, or any other material known in the art that are or can be used in the construction of personal care absorbent articles, such as diapers, training pants, absorbent underpants, adult incontinence product, feminine hygiene products.
  • absorbent material including, but not limited to coform, woven and nonwoven materials, back sheet liner material, or any other material known in the art that are or can be used in the construction of personal care absorbent articles, such as diapers, training pants, absorbent underpants, adult incontinence product, feminine hygiene products.
  • the term 'body facing material' is understood to include materials that are both typically and less frequently in contact with the wearer's skin.
  • the body facing material of the present invention can be a single layer or multi-layers.
  • composition of the present invention can be applied to a specific portion or component of the absorbent article or to the entire surface of the absorbent article that comes into contact with the wearer's skin during use of the absorbent article.
  • the composition can be applied in varying concentration or deposition amounts on the skin contacting surface of the absorbent article or portion thereof.
  • the compositions are applied such that the compositions will be delivered via contact with the user's skin during the use of the absorbent article.
  • the compositions of the present invention can be applied after the body facing material has been incorporated into the absorbent article or prior to incorporating the body facing material into the absorbent article.
  • the phrase 'effective amount of the composition' is understood to mean an amountof the composition of the present invention which, when applied to the body facing material, will be effective in providing skin barrier enhancing benefits.
  • Resolidification of the deposits of the hydrophilic composition can occur almost instantaneously, without the need for external cooling means such as chill rolls, if the composition is heated to a temperature only slightly above or at the melting point of the composition.
  • external means such as chill rolls, either before or after the application of melt, can be used if desired to accelerate resolidification.
  • Such instantaneous resolidification tends to impede penetration of the composition into the bodyside liner 18 or tissue material 20 and retain it on the outer surface 28 of the bodyside liner 18 or tissue material 20, which is advantageous.
  • the temperature of the melted composition can advantageously be above the melting point about 10°C. or less, more specifically about 5°C. or less and still more specifically about 2 °C. or less. As the temperature of the melted composition approaches the melting point, the viscosity of the melted composition generally increases, which further enhances the tendency of the melted composition to be retained on the outer surface 28.
  • melting point is the temperature at which the majority of the melting occurs, it being recognized that melting actually occurs over a range of temperatures.
  • the melting point of the compositions of this invention can be from about 30 °C. to about 100 °O, more specifically from about 40 °C. to about 70 °C, and still more specifically from about 50 °C. to about 60 °C.
  • penetration hardness is the needle penetration in millimeters according to ASTM D 1321 , “Needle Penetration of Petroleum Waxes. Lower needle penetration hardness values correspond to harder materials.
  • the penetration hardness of the compositions of this invention can be from about 5 to 360 millimeters, more specifically from about 5 to about 200 millimeters, more specifically from about 5 to about 150 millimeters, and still more specifically from about 5 to about 100 millimeters. (Formulations having a needle penetration hardness greater than 360 millimeters cannot be measured using ASTM method D 1321 ).
  • the hardness of the formulations or compositions of this invention is important for two reasons. First, the softer the formulation the more mobile the formulation will be, making the formulation more likely to migrate to the interior of the bodyside liner 18 or tissue material 20 as well as the absorbent core 14, which is not desirable. Secondly, softer formulations tend to be more greasy/oily to the touch, which is also less desirable. In general, formulations having a needle penetration hardness of from about 200 to 360 millimeters feel creamy to slightly greasy with less smoothness (depending on additives). Formulations that have needle penetration hardness values of from about 5 to about 200 millimeters feel silky to creamy and very smooth (depending on additives).
  • melt point viscosity and/or the process temperature viscosity of the formulations or compositions of this invention is important for two reasons: First, the higher the melt point viscosity or the process temperature viscosity as it is applied to the outside surface of the diaper liner, the formulation is less likely to penetrate through to the inner surface of the diaper liner. The less formulation penetrate through the liner the more there is on the surface of the liner where it can readily transfer to the wearers skin surface. Secondly, the higher the viscosity of the formulation at the above or at the melting point of the formulation, the less likely the formulation will migrate at typical or adverse storage conditions.
  • ingredients can be used.
  • the classes of ingredients and their corresponding benefits include, without limitation: antifoaming agents (reduce the tendency of foaming during processing); antimicrobial actives; antifungal actives; antiseptic actives; antioxidants (product integrity to prevent oxidation of the natural oils and other ingredients in the formulation); astringents - cosmetic (induce a tightening or tingling sensation on skin); astringent - drug (a drug product which checks oozing, discharge, or bleeding when applied to skin or mucous membrane and works by coagulating protein); biological additives (enhance the performance or consumer appeal of the product including vitamins); colorants (impart color to the product); deodorants (reduce or eliminate unpleasant odor and protect against the formation of malodor on body surfaces); emollients (help to maintain the soft, smooth, and pliable appearance of the skin by their ability to remain on the skin surface or in the stratum corneum to act as lubricants, to reduce flaking, and to
  • oil soluble/dispersible or lipophilic materials can be easily emulsified into the formulation using anionic, amphoteric, cationic, nonionic and/or zwitterionic surfactants.
  • Lipophilic materials without limitation include: silicones/organomodified silicones (protection, tissue water resistance, lubricity, tissue softness); emollients, fatty esters and, the like. Powders to enhance lubricity, oil adsorption, provide skin protection, astringency, opacity, etc. and microencapsulated ingredients can also be dispersed into the formulation.
  • the minimum level of the composition to be applied to the bodyside liner 18 or tissue material 20 is an amount effective for reducing abrasion or irritation of the skin of the wearer.
  • the total bodyside liner 18 or tissue material 20 add-on of the composition can be from about 0.5 to about 40 weight percent, more specifically from about 5 to about 30 weight percent, and more specifically from about 10 to about 15 weight percent, based on the weight of the bodyside liner 18 or tissue material 20.
  • the add-on amount will depend upon the desired effect of the composition on the product attributes and the specific composition.
  • a preferred method to uniformly apply the heated composition to the outer surface 28 of the web of body facing material is spraying or slot coating.
  • other printing methods such as flexographic printing or roto-gravure printing can be used.
  • absorbent article refers to articles or products that are used to absorb and contain bodily fluids. Disposable absorbent articles include such products as diapers, training pants, adult incontinence articles, absorbent under pants, and feminine care products that have been used to absorb body fluids and leave the skin dry.
  • Disposable absorbent articles 10 of this type generally comprise a liquid impermeable back sheet member 12, an absorbent core 14 or absorbent assembly 16, and a liquid permeable bodyside liner 18. (See Figures 1 and 2.) It is the bodyside liner 18 or tissue material 20 that comes into contact with the wearer's skin. Typically, the back sheet member 12 is joined to the bodyside liner 18 with the absorbent core 14 disposed between the back sheet member 12 and the bodyside liner 18. A general description of these components, the back sheet member 12, the bodyside liner 18, and the absorbent core 14, will be discussed below.
  • the absorbent core 14 absorbs and retains bodily fluids, such as urine, menses, and other body exudates.
  • the absorbent core 14 is preferably compressible, conformable, and non-irritating to the wearer's skin.
  • the absorbent core 14 may take a variety of sizes and shapes, such as rectangular, oval, hourglass, "T" shaped, asymmetric, dog bone, and the like.
  • the absorbent core 14 may be comprised of a wide variety of liquid absorbent materials commonly used in absorbent articles 10.
  • Absorbent cores 14 typically include a porous fibrous matrix 22 and high absorbency material 24.
  • the porous fibrous matrix 22 of absorbent core 14 is preferably an air laid batt of fluff and high absorbency material 24 which may be formed in many ways, for example according to the teaching of Mazurak and Fries as set forth in U.S. Patent 4,381 ,782 the entire disclosure of which is incorporated herein by reference.
  • the absorbent core 14 can comprise an air-formed mixture of high absorbency material 24 (SAP) and fibers 22, preferably of fluff pulp.
  • SAP high absorbency material 24
  • the mixing of the fluff fibers 22 and the high absorbency material 24 can be homogeneous, graduated, or layered.
  • the fibers 22, other than fluff pulp such as chemically stiffened and thermo-mechanical pulps, can be used.
  • the absorbent core 14 can comprise absorbent material other than air formed fluff 22 and SAP 24.
  • absorbent material other than air formed fluff 22 and SAP 24.
  • coform materials as referenced in US Patents 4,818,464 to Lau and 4,100,324 to Anderson can be used to make the absorbent as long as they also contain high absorbency materials.
  • wet formed composite materials comprising a combination of fibers and high absorbency materials as disclosed in US Patent 5,651 ,862 to Anderson et al. can also be used.
  • Stabilized air-laid materials comprising a mixture of fibers, binder fibers, and high absorbency materials which are bound together by latex binding or through air bonding are also usable as absorbent materials.
  • any material known in the art that serves to absorb body exudates can be used to construct the absorbent core 14 as shown in the present invention.
  • the high absorbency materials 24 are typically hydrogel polymers that are desirably sufficiently cross-linked to render the materials substantially water-insoluble. Cross-linking may, for example, be by irradiation or by covalent, ionic, van der Waals or hydrogen bonding. Suitable materials are available from various commercial vendors, such as Dow Chemical Company (Drytech 2035 LD), Hoechst-Celanese Corporation and Allied-Colloid. Typically, the high-absorbency material 24 is capable of absorbing at least about 15 times its weight in water, and desirably is capable of absorbing more than about 25 times its weight in water.
  • the high-absorbency material 24 can be distributed or otherwise incorporated into the absorbent core 14 employing various techniques.
  • the high-absorbency material 24 can be substantially uniformly distributed among the fibers 22 comprising the absorbent core 14.
  • the materials can also be non-uniformly distributed within the fibers 22 of the absorbent core 14 to form a generally continuous gradient with either an increasing or decreasing concentration of the high-absorbency material 24, as determined by observing the concentration moving inward from the back sheet member 12.
  • the high-absorbency material 24 can comprise a discrete layer separate from the fibers 22 of the absorbent core 14, or can comprise a discrete layer integral with the absorbent core 14.
  • the absorbent core 14 may also include a wrap layer 26 to help maintain the integrity of the fibrous absorbent core 14.
  • This wrap layer 26 may comprise a cellulosic tissue or spunbond, meltblown or bonded-carded web material composed of synthetic polymer filaments, such as polypropylene, polyethylene, polyesters or the like or natural polymer filaments such as rayon or cotton.
  • the wrap layer 26 may be made of the same materials as those used in the bodyside liner 18 or be made of materials differing from those used in the bodyside liner 18. In some cases, the bodyside liner 18 may be absent, and the wrap layer 26, also referred to as the tissue material 20, will serve as the bodyside layer of the absorbent article 10, coming in contact with the wearer's skin.
  • the absorbent core 14 can include additional components to assist in the acquisition, distribution, and storage of bodily exudates, such as a dusting layer, a transport layer, a wicking or acquisition/distribution layer, an intake layer, or a surge layer.
  • additional components to assist in the acquisition, distribution, and storage of bodily exudates, such as a dusting layer, a transport layer, a wicking or acquisition/distribution layer, an intake layer, or a surge layer.
  • a surge management layer such as described in U.S. Patent 5,486,166 issued January 23, 1996, to Bishop et al., U.S. Patent 5,364,382 issued November 15, 1994, to Latimer et al., U.S. Patent 5,490,846 to Ellis et al., U.S. patent 5,429,629 to Latimer et al., U.S. Patent 5,509,915 to Hanson et al., U.S. Patent 5,192,606 to Prox
  • the bodyside liner 18 consists of a nonwoven or other soft material for contacting the wearer's skin.
  • the bodyside liner 18 has an outer (exterior) surface 28 that faces toward the wearer and an inner (interior) surface 30 that faces away from the wearer.
  • the bodyside liner 18 is described in more detail below.
  • the bodyside liner 18 is compliant and soft feeling to the wearer.
  • the bodyside liner 18 may be any soft, flexible, porous sheet that is aqueous liquid permeable, permitting aqueous liquids to readily penetrate into its thickness.
  • a suitable bodyside liner 18 may be manufactured from a wide range of materials, such as natural fibers (e.g., wood or cotton fibers), synthetic fibers (e.g., polyester or polypropylene fibers) or from a combination of natural and synthetic fibers or reticulated foams and apertured plastic films.
  • natural fibers e.g., wood or cotton fibers
  • synthetic fibers e.g., polyester or polypropylene fibers
  • the bodyside liner 18 is formed of an aqueous liquid permeable material so that aqueous liquid waste, and possibly semi-solid waste as well, can pass through to the absorbent core 14 and be absorbed by the absorbent core 14 of the absorbent article 10.
  • a suitable bodyside liner 18 may be comprised of a nonwoven web, a spunbond, meltblown or bonded-carded web composed of synthetic polymer filaments or fibers, such as polypropylene, polyethylene, polyesters or the like, a perforated film, or a web or natural polymer filaments or fibers such as rayon or cotton.
  • the bodyside liner 18 may be treated with a surfactant to aid in aqueous liquid transfer.
  • the bodyside liner 18 is a nonwoven spunbond.
  • the spunbond material is available from Kimberly-Clark Corporation, located in Roswell, GA.
  • the bodyside liner 18 has a weight from about 0.3 oz. per square yard (osy) to about 2.0 osy and alternatively about 0.5 osy.
  • the bodyside liner 18 of the underpant maybe printed, colored or decoratively embossed.
  • the bodyside liner 18 can also be a nonwoven web or sheet of polyolefin fibers, such as polypropylene, polyester, polyethylene, Rayon, chisso and the like.
  • the bodyside liner 18 may also be a plastic film with perforations, an expanded plastic webbing material or a scrim material.
  • the bodyside liner 18 has a pore size that readily allows the passage therethrough of air, sweat, perspiration due to the breathability of the material.
  • the bodyside liner 18 may be selectively embossed or perforated with discrete slits or holes extending therethrough.
  • the fabric of the bodyside liner 18 is surface treated with a surfactant such as that commercially available from Union Carbide Chemicals and Plastics Company, Inc., of Danbury, Connecticut, U.S.A. under the trade designation TRITON X-102.
  • a surfactant such as that commercially available from Union Carbide Chemicals and Plastics Company, Inc., of Danbury, Connecticut, U.S.A. under the trade designation TRITON X-102.
  • the term “fabric” refers to all of the woven, knitted and nonwoven fibrous webs.
  • nonwoven web means a web of material that is formed without the aid of a textile weaving or knitting process.
  • an aqueous liquid permeable bodyside liner 18 can be made of a carded web of polyester fibers bonded to a spunbonded polypropylene or polyethylene carrier sheet.
  • the carded material is made up of about 20 to about 60 weight percent polypropylene or polyethylene and about 80 to about 40 weight percent polyester.
  • the basis weight of this material can be between about 30 gsm and about 70 gsm.
  • a "liner”, “liner product”, “diaper liner”, “top sheet”, “tissue” can be a bodyside liner 18 or the tissue material 20 of a personal care absorbent article 10, such as diapers, training pants, absorbent underpants, adult incontinence products feminine hygiene products, or the like.
  • the bodyside liner 18 or the tissue material 20 of this invention can be a single layer or multi-layers. In all cases, the compositions are typically applied to the outer surface 28 of the bodyside liner 18 or the tissue material 20 of the disposable absorbent article 10.
  • the compositions of the present invention can be applied after the bodyside liner 18 or tissue material 20 has been incorporated into the absorbent article 10 or prior to incorporating the bodyside liner 18 or the tissue material 20 into the absorbent article 10.
  • the back sheet member 12 is needed to prevent aqueous liquid strike through to the outer clothing when bodily fluid is discharged onto the absorbent core 14 of the absorbent article 10.
  • the back sheet member 12 typically consists of an aqueous liquid impermeable film such as polyethylene.
  • the aqueous liquid impermeable back sheet member 12 has an outer (exterior) surface 32 that faces away from the wearer and an inner (interior) surface 34 that faces toward the wearer.
  • the back sheet member 12 acting as a barrier, should retard the movement of the aqueous liquid through the absorbent article 10 by making the back sheet member 12 resistant to penetration normally encountered under wearing conditions.
  • the back sheet member 12 desirably comprises a material that is formed or treated to be aqueous liquid impermeable.
  • the back sheet member 12 may comprise an aqueous liquid permeable material and other suitable means (not shown), such as an aqueous liquid impermeable layer associated with the absorbent core 14 may be provided to impede aqueous liquid movement away from the absorbent core 14 of the absorbent article 10.
  • the disposable absorbent article 10 may be rendered aqueous liquid impermeable by any method well known in the art such as coating the absorbent core 14 or by securing a separate aqueous liquid impermeable material to the absorbent core 14.
  • the back sheet member 12 may comprise a thin, aqueous liquid impermeable web or sheet of plastic film such as polyethylene, polypropylene, polyvinyl chloride or similar material.
  • Other acceptable materials include a single spunbonded layer of the above types of materials, two layers of spunbonded and meltblown materials or a three-layer material of spunbonded- meltblown-spunbonded material.
  • Suitable foam materials may also be used, as well as materials that are both aqueous liquid impermeable and vapor- permeable.
  • the back sheet member 12 may comprise a nonwoven, fibrous web which has been suitably constructed and arranged to have low aqueous liquid permeability. Still alternately, the back sheet member 12 may comprise a layered or laminated material, such as a thermally bonded plastic film and nonwoven web composite. Alternatively, the back sheet member 12 consists of a aqueous liquid impermeable film or foam which is permeable to water vapor under normal wearing conditions. More preferred, the back sheet member 12 has a water vapor transmission rate of at least about 800 grams/m 2 /24 hours measured by ASTM E96-92. One example of a suitable film is a 39.4 grams per square meter microporous film produced by Mitsui and sold by Consolidated Thermoplastics (CT) under the tradename of ESPOIR® N-TAF-CT.
  • CT Consolidated Thermoplastics
  • the absorbent articles 10 may also include elastic members 36 in the waist 42 (in absorbent articles 10 such as under pants and briefs), in the regions surrounding the leg openings 38 and 40, in the waist portions (not shown) as fit elastics (in absorbent articles 10 such as under pants), in side panels (not shown) (in absorbent articles 10 such as briefs and under pants), and in flap or barrier structures(not shown).
  • the elastic members 36 may be in the form of strips, ribbons, connected ribbons or strips, sheets, strands, bands, threads, filaments, or any combination of these shapes and others known to the art.
  • the elastic members 36 may also be of latent elastic material that is activated after placement in the absorbent articles 10.
  • compositions of the present invention are solid or semisolid at 30° C.
  • the term "semisolid” refers to a composition having a rheology typical of pseudoplastic or plastic fluids. Because the compositions are in at as least a semisolid state at ambient temperatures, migration of the composition is minimized. The compositions, being solid or semisolid at ambient temperatures, do not have the tendency to migrate into the interior of the bodyside liner 18 or the tissue material 20 and ultimately into the absorbent article 10 to which the composition has been applied. The compositions are transferable to the wearer's skin by normal contact, movement of the wearer, or the body heat of the wearer.
  • the composition is applied to the outer surface 28 of the bodyside liner 18 or the tissue material 20 of the absorbent article 10.
  • Any of a variety of application methods that evenly distribute lubricious materials having a molten or liquid consistency can be used. Suitable methods include spraying, slot coating, printing (such as flexographic printing), coating (such as gravure coating), extrusion, or combinations of these methods, such as spraying the composition on a rotating surface, then transferring the composition to the outer surface 28 of the bodyside liner 18 or the tissue material 20.
  • the manner of applying the composition to the bodyside liner 18 or the tissue material 20 should be such that the bodyside liner 18 or the tissue material 20 does not become saturated with the composition. If the bodyside liner 18 or the tissue material 20 becomes saturated with the composition, the fluid permeability of the bodyside liner 18 or the tissue material 20 may be reduced or blocked. In addition, saturation of the bodyside liner 18 or the tissue material 20 is not necessary to obtain therapeutic or protective benefits from the composition of the present invention.
  • a variety of fastening means 44 can be used for securing the absorbent article 10 around or in contact with the wearer including tape fasteners, belts, ties, disposable and reusable garments, and mechanical type fasteners.
  • the mechanical type fasteners include buttons, button holes, snaps, buckles, clasps, hooks and loops, end extensions, tabs, and the like which are designed or adapted to interlock or engage some type of a complimentary device or the outer cover of the absorbent article 10.
  • Suitable engaging elements for such mechanical closure elements include self-engaging geometric shaped materials, such as hooks, loops, snaps, buckles, bulbs, mushrooms, arrowheads, balls on stems, male and female mating components, or the like.
  • the disposable absorbent articles 10 may also include flap or gasket structures (not shown). These flap or gasket structures can be assembled in a number of different configurations, including those disclosed in U.S. Patent 4,704,116 issued to Enloe on November 3, 1987, U.S. Patent 4,846,823 issued to Enloe on July 11 , 1989, U.S. Patent 5,413,570 issued to Enloe on May 9, 1995, U.S. Patent 5,415,644 issued to Enloe on May 16, 1995 and U.S. Patent 5,599,338 issued to Enloe on February 4, 1997.
  • compositions of the present invention may be applied to the entire outer surface 28 of the bodyside liner 18 or tissue material 20 or portions thereof.
  • the composition is applied in a stripe or pattern aligned with a centered on the longitudinal centerline 46 of the disposable absorbent article 10. (See Figure 1.)
  • the dimensions of the stripe or pattern will vary with the different absorbent articles 10 to which the composition is being applied.
  • compositions of the present invention may be applied non-uniformly to the outer surface 28 of the bodyside liner 18 or tissue material 20.
  • non-uniformly refers to the amount, pattern of distribution, thickness of the application, or the like, of the composition can be varied over the outer surface 28 of the bodyside liner 18 or tissue material 20.
  • the composition could be applied to the inner surface 30 of the bodyside liner 18 or tissue material 20, alone or in combination with the application of the composition to the outer surface 28.
  • the compositions of the present invention can be applied to the bodyside liner 18 or tissue material 20 at any point during assembly of the absorbent article 10.
  • the raw material web being formed into the bodyside liner 18 or tissue material 20 may be treated with the composition before the web is processed into the bodyside liner 18 or tissue material 20; the bodyside liner 18 or tissue material 20 may be treated with the composition before being incorporated into the absorbent article 10; and, the bodyside liner 18 or tissue material 20 may be treated with the composition after the bodyside liner 18 or tissue material 20 has been incorporated into the absorbent article 10.
  • PROLIPID is commercially available from International Specialty Products located in Wayne, New Jersey. PROLIPID is generally described in U.S. Patent No. 5,849,315 to Rerek et al. which issued December 15, 1998; which is herein incorporated by reference to the extent it is consistent herewith.
  • Lipomicron NSLE 5% (Sederma, Le Perray-en-Yvelines, France)
  • Lipid-enriched formulations for treatment of absorbent articles promote barrier repair as measured by Transepidermal water loss (TEWL).
  • TEWL Transepidermal water loss
  • All lipid-enriched absorbent article formulations repaired the skin barrier compared to the untreated site at 1 ,2 and 4 hours after application of the formulas as measured by TEWL.
  • Formula 4 and 5 repaired the skin barrier compared to the untreated site as measured by TEWL.
  • Formula 5 repaired the barrier significantly better than Formula 4.
  • Formula 4 contains Lipomicron NSLE.a Sederma (Le Perray-en-Yvelines, France) product at the recommended use level that is marketed as a product for protection of the cutaneous barrier.
  • Lipid-enriched absorbent article formulations enhance skin moisturization as measured bv conductance. All studies were conducted in a temperature and humidity controlled room (71° F ⁇ 5° F; 40 ⁇ 5% relative humidity).
  • All lipid-enriched absorbent article formulas significantly enhanced skin moisturization at 1 , 2, 4 and 6 hours post application of the formulas compared to the untreated site.
  • Formula 5 significantly enhanced skin moisturization at 1 , 2 and 4 hours post application of the formulas compared to the untreated site.
  • Formula 4 failed to enhance skin moisturization at any of the times tested.
  • Formula 4 contains Lipomicron NSLE.a Sederma (Le Perray-en-Yvelines, France) product at the recommended use level that is marketed as a product for protection of the cutaneous barrier.
  • the lipid-enriched hydrophilic composition of the present invention may provide absorbent article products having improved softness as well as providing improved protection of the skin barrier function. Accordingly, the different aspects of the present invention can advantageously provide absorbent article products which, when compared to conventional absorbent article products, are softer and have improved protection of skin barrier function. Such absorbent article products can advantageously be used for as diapers, training pants, adult incontinence products, under pants, and feminine care products, and the like.

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  • Chemical Kinetics & Catalysis (AREA)
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  • Birds (AREA)
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  • Absorbent Articles And Supports Therefor (AREA)
  • Cosmetics (AREA)
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  • Medicinal Preparation (AREA)

Abstract

Dans cette invention, une matière supérieure en contact avec le corps disposée sur un article absorbant améliore la barrière cutanée. On peut obtenir cette matière en appliquant d'abord sur la surface externe de la matière en contact avec le corps une composition hydrophile fondue enrichie en lipides contenant un solvant hydrophile, un glycol de polyéthylène à poids moléculaire élevé, un alcool gras (C14-C30 ou plus), un humectant, un tensioactif émulsionnant huile dans l'eau présentant un rapport hydrophile-lipophile (HLB) supérieur à 7, un stérol ou un dérivé de stérol, et un corps gras naturel, ou une huile naturelle, et en resolidifiant ensuite la composition pour former une distribution de composition solide sur la surface externe de la matière en contact avec le corps.
PCT/US2000/010957 1999-04-23 2000-04-20 Articles absorbants doux pour la peau et compositions associees WO2000064501A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020017013461A KR20020030264A (ko) 1999-04-23 2000-04-20 피부-친화적 흡수 제품 및 조성물
BR0009925-2A BR0009925A (pt) 1999-04-23 2000-04-20 Material que melhora a barreira da parte superior da pele tal como revestimento voltado para o corpo em um artigo absorvente e processo de fabricação do mesmo
DE10084522T DE10084522T1 (de) 1999-04-23 2000-04-20 Hautfreundliche absorptionsfähige Artikel und Zusammensetzungen
AU46581/00A AU4658100A (en) 1999-04-23 2000-04-20 Skin-friendly absorbent articles and compositions
GB0126294A GB2363721B (en) 1999-04-23 2000-04-20 Skin-friendly absorbent articles and compositions

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US13090199P 1999-04-23 1999-04-23
US60/130,901 1999-04-23
US09/382,018 1999-08-24
US09/382,018 US6475197B1 (en) 1999-08-24 1999-08-24 Absorbent articles having skin health benefits

Publications (1)

Publication Number Publication Date
WO2000064501A1 true WO2000064501A1 (fr) 2000-11-02

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PCT/US2000/010957 WO2000064501A1 (fr) 1999-04-23 2000-04-20 Articles absorbants doux pour la peau et compositions associees

Country Status (8)

Country Link
KR (1) KR20020030264A (fr)
AR (1) AR023578A1 (fr)
AU (1) AU4658100A (fr)
BR (1) BR0009925A (fr)
CO (1) CO5160297A1 (fr)
DE (1) DE10084522T1 (fr)
GB (1) GB2363721B (fr)
WO (1) WO2000064501A1 (fr)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002049686A2 (fr) 2000-12-21 2002-06-27 Mcneil-Ppc, Inc. Bande de film polymere a ouvertures comportant un diol/agent de surface
WO2002064177A1 (fr) * 2001-02-15 2002-08-22 Sca Hygiene Product Ab Article absorbant
WO2002070026A1 (fr) * 2000-12-21 2002-09-12 Mcneil-Ppc, Inc. Bande de film polymere a trous, comportant un melange d'additifs tensio-actifs
EP1250941A1 (fr) * 2001-04-17 2002-10-23 The Procter & Gamble Company Articles contenant un agent rafraichissant sans odeur de menthe
EP1250940A1 (fr) * 2001-04-17 2002-10-23 The Procter & Gamble Company Article absorbant contenant un agent pouvant transmettre une sensation à l' utilisateur
US6534074B2 (en) 1999-08-24 2003-03-18 Kimberly-Clark Worldwide, Inc. Absorbent articles providing skin health benefits
WO2003057122A1 (fr) * 2001-12-22 2003-07-17 Kimberly-Clark Worldwide Inc. Systeme pour ameliorer la sante dermatologique des utilisateurs d'articles absorbants
US6749860B2 (en) 2000-12-22 2004-06-15 Kimberly-Clark Worldwide, Inc. Absorbent articles with non-aqueous compositions containing botanicals
US6756520B1 (en) 2000-10-20 2004-06-29 Kimberly-Clark Worldwide, Inc. Hydrophilic compositions for use on absorbent articles to enhance skin barrier
US6972010B2 (en) 2001-04-17 2005-12-06 The Procter & Gamble Company Absorbent article comprising an agent able to convey a perception to the wearer, without the need to create the external condition perceived
WO2007064264A1 (fr) 2005-12-01 2007-06-07 Sca Hygiene Products Ab Nouvel article absorbant
DE112008001315T5 (de) 2007-05-15 2010-03-11 The Procter & Gamble Company, Cincinnati Absorptionsartikel, umfassend eine Lotionszusammensetzung zum Reduzieren der Anhaftung von Fäkalien oder Menstruation an der Haut
US7771735B2 (en) 2000-12-22 2010-08-10 Kimberly-Clark Worldwide, Inc. Absorbent articles with compositions for reducing irritation response
WO2011034867A2 (fr) 2009-09-18 2011-03-24 The Procter & Gamble Company Substrat comprenant une composition de lotion limitant l'adhérence de matières fécales ou de menstrues à la peau
DE10196632B3 (de) * 2000-10-20 2012-06-21 Kimberly-Clark Worldwide, Inc. Absorbierende Artikel, die die Hautbarrierenfuntion verbessern,sowie Verfahren zum Auftragen einer Zusammensetzung auf eine körperseitige Beschichtung eines absorbierenden Artikels
US8217220B2 (en) 2005-10-05 2012-07-10 Sca Hygiene Products Ab Absorbent article comprising a thin film including an active agent
US8273367B2 (en) 2001-04-17 2012-09-25 The Procter And Gamble Company Articles comprising a mint odor-free cooling agent
US9035123B2 (en) 2002-10-01 2015-05-19 The Procter & Gamble Company Absorbent article having a lotioned topsheet
US9101680B2 (en) 2007-05-15 2015-08-11 The Procter & Gamble Company Absorbent article with lotion
CN106800872A (zh) * 2016-12-30 2017-06-06 福建恒安集团有限公司 瞬干型亲水性非织造布表层涂布剂以及一次性纸尿布

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* Cited by examiner, † Cited by third party
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SE0303123D0 (sv) * 2003-11-24 2003-11-24 Sca Hygiene Prod Ab Absorberande alster med hudvårdande medel

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US4604281A (en) * 1983-03-21 1986-08-05 Charles Of The Ritz Group Ltd. Cosmetic and skin treatment compositions containing acetylated sterols
WO1997031620A2 (fr) * 1996-03-01 1997-09-04 Johnson & Johnson Consumer Products, Inc. Compositions a usage local contenant une emulsion aqueuse et un retinoide
WO1999013861A1 (fr) * 1997-09-12 1999-03-25 The Procter & Gamble Company Article nettoyant et revitalisant pour la peau ou les cheveux
WO1999037744A2 (fr) * 1998-01-26 1999-07-29 Unilever Plc Composition sous forme de pain pour le demaquillage de la peau

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GB880276A (en) * 1959-05-29 1961-10-18 Upjohn Co Improvements in or relating to oleaginous pharmaceutical compositions
US4604281A (en) * 1983-03-21 1986-08-05 Charles Of The Ritz Group Ltd. Cosmetic and skin treatment compositions containing acetylated sterols
WO1997031620A2 (fr) * 1996-03-01 1997-09-04 Johnson & Johnson Consumer Products, Inc. Compositions a usage local contenant une emulsion aqueuse et un retinoide
WO1999013861A1 (fr) * 1997-09-12 1999-03-25 The Procter & Gamble Company Article nettoyant et revitalisant pour la peau ou les cheveux
WO1999037744A2 (fr) * 1998-01-26 1999-07-29 Unilever Plc Composition sous forme de pain pour le demaquillage de la peau

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6534074B2 (en) 1999-08-24 2003-03-18 Kimberly-Clark Worldwide, Inc. Absorbent articles providing skin health benefits
DE10196632B3 (de) * 2000-10-20 2012-06-21 Kimberly-Clark Worldwide, Inc. Absorbierende Artikel, die die Hautbarrierenfuntion verbessern,sowie Verfahren zum Auftragen einer Zusammensetzung auf eine körperseitige Beschichtung eines absorbierenden Artikels
US6756520B1 (en) 2000-10-20 2004-06-29 Kimberly-Clark Worldwide, Inc. Hydrophilic compositions for use on absorbent articles to enhance skin barrier
WO2002070026A1 (fr) * 2000-12-21 2002-09-12 Mcneil-Ppc, Inc. Bande de film polymere a trous, comportant un melange d'additifs tensio-actifs
CN100512886C (zh) * 2000-12-21 2009-07-15 麦克内尔-Ppc股份有限公司 具有二醇/表面活性剂添加剂的多孔聚合物膜卷材
WO2002049686A2 (fr) 2000-12-21 2002-06-27 Mcneil-Ppc, Inc. Bande de film polymere a ouvertures comportant un diol/agent de surface
WO2002049686A3 (fr) * 2000-12-21 2002-11-21 Mcneil Ppc Inc Bande de film polymere a ouvertures comportant un diol/agent de surface
US6570055B2 (en) 2000-12-21 2003-05-27 Mcneil-Ppc, Inc Apertured polymeric film web with surfactant mixture additive
AU2001297605B2 (en) * 2000-12-21 2007-11-15 Mcneil-Ppc, Inc. Apertured polymeric film web with surfactant mixture additive
US6743965B2 (en) 2000-12-21 2004-06-01 Mcneil-Ppc, Inc. Apertured polymeric film web with diol/surfactant additive
US7771735B2 (en) 2000-12-22 2010-08-10 Kimberly-Clark Worldwide, Inc. Absorbent articles with compositions for reducing irritation response
US6749860B2 (en) 2000-12-22 2004-06-15 Kimberly-Clark Worldwide, Inc. Absorbent articles with non-aqueous compositions containing botanicals
WO2002064177A1 (fr) * 2001-02-15 2002-08-22 Sca Hygiene Product Ab Article absorbant
US8273367B2 (en) 2001-04-17 2012-09-25 The Procter And Gamble Company Articles comprising a mint odor-free cooling agent
WO2002083191A1 (fr) * 2001-04-17 2002-10-24 The Procter & Gamble Company Article absorbant comprenant un agent capable de donner une sensation a un utilisateur
EP1250941A1 (fr) * 2001-04-17 2002-10-23 The Procter & Gamble Company Articles contenant un agent rafraichissant sans odeur de menthe
CZ302021B6 (cs) * 2001-04-17 2010-09-08 The Procter & Gamble Company Absorpcní výrobek obsahující cinidlo umožnující prenos vjemu vnímání
EP1250940A1 (fr) * 2001-04-17 2002-10-23 The Procter & Gamble Company Article absorbant contenant un agent pouvant transmettre une sensation à l' utilisateur
CN100540063C (zh) * 2001-04-17 2009-09-16 宝洁公司 包括不含薄荷气味的凉爽剂的制品
US6972010B2 (en) 2001-04-17 2005-12-06 The Procter & Gamble Company Absorbent article comprising an agent able to convey a perception to the wearer, without the need to create the external condition perceived
CN1501816B (zh) * 2001-04-17 2010-05-26 宝洁公司 包括能给穿着者传递感觉的试剂的吸收制品
WO2002083192A1 (fr) * 2001-04-17 2002-10-24 The Procter & Gamble Company Articles comprenant un agent de rafraichissement sans odeur de type menthe
WO2003057122A1 (fr) * 2001-12-22 2003-07-17 Kimberly-Clark Worldwide Inc. Systeme pour ameliorer la sante dermatologique des utilisateurs d'articles absorbants
US9035123B2 (en) 2002-10-01 2015-05-19 The Procter & Gamble Company Absorbent article having a lotioned topsheet
US9737446B2 (en) 2002-10-01 2017-08-22 The Procter & Gamble Company Absorbent article having a lotioned topsheet
US10687991B2 (en) 2002-10-01 2020-06-23 The Procter & Gamble Company Absorbent article having a lotioned topsheet
US8217220B2 (en) 2005-10-05 2012-07-10 Sca Hygiene Products Ab Absorbent article comprising a thin film including an active agent
WO2007064264A1 (fr) 2005-12-01 2007-06-07 Sca Hygiene Products Ab Nouvel article absorbant
US10058629B2 (en) 2005-12-01 2018-08-28 Sca Hygiene Products Ab Absorbent article with skin care agent composition immobilized in a lipid phase
DE112008001315T5 (de) 2007-05-15 2010-03-11 The Procter & Gamble Company, Cincinnati Absorptionsartikel, umfassend eine Lotionszusammensetzung zum Reduzieren der Anhaftung von Fäkalien oder Menstruation an der Haut
US9101680B2 (en) 2007-05-15 2015-08-11 The Procter & Gamble Company Absorbent article with lotion
US10517982B2 (en) 2007-05-15 2019-12-31 The Procter & Gamble Company Absorbent article comprising a lotion composition for reducing adherence of feces or menses to the skin
WO2011034867A2 (fr) 2009-09-18 2011-03-24 The Procter & Gamble Company Substrat comprenant une composition de lotion limitant l'adhérence de matières fécales ou de menstrues à la peau
CN106800872A (zh) * 2016-12-30 2017-06-06 福建恒安集团有限公司 瞬干型亲水性非织造布表层涂布剂以及一次性纸尿布

Also Published As

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KR20020030264A (ko) 2002-04-24
AU4658100A (en) 2000-11-10
AR023578A1 (es) 2002-09-04
GB0126294D0 (en) 2002-01-02
BR0009925A (pt) 2002-12-31
DE10084522T1 (de) 2002-05-02
GB2363721A (en) 2002-01-09
CO5160297A1 (es) 2002-05-30
GB2363721B (en) 2003-09-03

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