Classifications

• • 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
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q5/00—Preparations for care of the hair
  • A61Q5/12—Preparations containing hair conditioners
• • 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
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P17/00—Drugs for dermatological disorders
• • 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
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q19/00—Preparations for care of the skin
  • A61Q19/10—Washing or bathing preparations
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q5/00—Preparations for care of the hair
  • A61Q5/02—Preparations for cleaning the hair
• • 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
  • A61Q17/005—Antimicrobial preparations
• • 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
  • A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
• • 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
  • A61Q19/04—Preparations for care of the skin for chemically tanning the skin
• • 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
  • A61Q19/08—Anti-ageing preparations

Definitions

• the present invention relates to disposable, personal care articles suitable for cleansing and/or therapeutically treating the skin, hair and any other sites in need of such treatment.
• These articles each comprise a water insoluble substrate comprising a nonwoven layer; and a therapeutic benefit component, disposed adjacent to said water insoluble substrate, wherein said component comprises from about 10% to about 1000%, by weight of the water insoluble substrate, of a therapeutic benefit composition comprising a hydrophilic conditioning agent wherein the conditioning agent exhibits a Leaching Value of less than about 25% at 1 minute and less than about 50% at 5 minutes when the article is exposed to water.
• Disposable products are convenient because they obviate the need to carry or store cumbersome bottles, bars, jars, tubes, and other forms of clutter including cleansing products and other products capable of providing therapeutic or aesthetic benefits. Disposable products are also a more sanitary alternative to the use of a sponge, washcloth, or other cleansing implement intended for extensive reuse, because such implements can develop bacterial growth, unpleasant odors, and other undesirable characteristics related to repeated use.
• the disposable articles of the present invention may be removeably attached to a handle or grip suitable for moving the article over the surface to be cleansed and/or therapeutically treated (e.g., conditioned).
• a handle or grip suitable for moving the article over the surface to be cleansed and/or therapeutically treated (e.g., conditioned).
• the articles of the present invention are suitable for personal care applications, they may also be useful in a variety of other industries such as the automotive care, marine vehicle care, household care, animal care, etc. where surfaces or areas are in need of cleansing and/or application of a benefit agent, e.g., wax, conditioner, UV protectant, etc..
• a benefit agent e.g., wax, conditioner, UV protectant, etc.
• the present invention also relates to a method of cleansing and/or conditioning the skin and hair which comprises the steps of: a) wetting such articles with water and b) contacting the skin or hair with the wetted articles.
• substantially dry means that the articles of the present invention exhibit a Moisture Retention of less than about 0.95 gms, preferably less than about 0.75 gms, even more preferably, less than about 0.5 gms, even more preferably less than about 0.25 gms, even still more preferably less than about 0.15 gms, and most preferably, less than about 0.1 gms. The determination of the Moisture Retention is discussed later.
• synthetic means that the materials are obtained primarily from various man-made materials or from natural materials which have been further altered. Suitable synthetic materials include, but are not limited to, acetate fibers, acrylic fibers, cellulose ester fibers, modacrylic fibers, polyamide fibers, polyester fibers, polyolefin fibers, polyvinyl alcohol fibers, rayon fibers, polyethylene foam, polyurethane foam, and combinations thereof. Preferred synthetic materials, particularly fibers, may be selected from the group consisting of nylon fibers, rayon fibers, polyolefin fibers, polyester fibers, and combinations thereof.
• Preferred polyolefin fibers are fibers selected from the group consisting of polyethylene, polypropylene, polybutylene, polypentene, and combinations and copolymers thereof. More preferred polyolefin fibers are fibers selected from the group consisting of polyethylene, polypropylene, and combinations and copolymers thereof.
• Preferred polyester fibers are fibers selected from the group consisting of polyethylene terephthalate, polybutylene terephthalate, polycyclohexylenedimethylene terephthalate, and combinations and copolymers thereof. More preferred polyester fibers are fibers selected from the group consisting of polyethylene terephthalate, polybutylene terephthalate, and combinations and copolymers thereof.
• the fibers of the nonwoven layer may exhibit a helical or spiral or crimped configuration, particularly the bicomponent type fibers.
• the batting nonwoven layer may also comprise natural fibers.
• the nonwoven layer of the present invention may comprise a composite material, i.e., a material having one or more plies of the same or different suitable materials merely superimposed physically, joined together continuously (e.g., laminated, etc.) or in a discontinuous pattern, or by bonding at the external edges (or periphery) of the layer and/or at discrete loci.
• the nonwoven layer may further comprise composite materials selected from the group consisting of fibrous nonwovens, sponges, foams, reticulated foams, polymeric nets, scrims, vacuum-formed laminates, formed films and formed film composite materials.
• suitable synthetic materials include acrylics such as acrilan, creslan, and the acrylonitrile-based fiber, orlon; cellulose ester fibers such as cellulose acetate, arnel, and accelerator; polyamides such as nylons (e.g., nylon 6, nylon 66, nylon 610, and the like); polyesters such as fortrel, kodel, and the polyethylene terephthalate fiber, polybutylene terephalate fiber, dacron; polyolefins such as polypropylene, polyethylene; polyvinyl acetate fibers; polyurethane foams and combinations thereof.
• acrylics such as acrilan, creslan, and the acrylonitrile-based fiber, orlon
• cellulose ester fibers such as cellulose acetate, arnel, and accelerator
• polyamides such as nylons (e.g., nylon 6, nylon 66, nylon 610, and the like)
• polyesters such as fortrel, kodel, and
• HEF Nubtex® 149-801 a nubbed, apertured hydroentangled material, containing about 100% polyester, and having a basis weight of about 84 gsm, available from Veratec, Inc. Walpole, MA;
• the nonwoven layer may also comprise formed films and composite materials, i.e., multiply materials containing formed films.
• formed films comprise plastics which tend to be soft to the skin.
• Suitable soft plastic formed films include, but are not limited to, polyolefins such as low density polyethylenes (LDPE).
• LDPE low density polyethylenes
• the nonwoven layer comprises a plastic formed film, it is preferred that the nonwoven layer be apertured, e.g., macroapertured or microapertured, such that the layer is fluid permeable.
• the nonwoven layer comprises a plastic formed film which is only microapertured.
• the nonwoven layer comprises a plastic formed film which is both microapertured and macroapertured.
• the nonwoven layer is well-suited to contact the area to be cleansed given the cloth-like feel of such microapertured films.
• the surface aberrations of the microapertures face opposite of the surface aberrations of the macroapertures on the nonwoven layer. In such an instance, it is believed that the macroapertures maximize the overall wetting/lathering of the article by the three-dimensional thickness formed from the surface aberrations which are under constant compression and decompression during the use of the article thereby creating lathering bellows.
• hydrophilic conditioning agents include those selected from the group consisting of polyhydric alcohols, polypropylene glycols, polyethylene glycols, ureas, pyrolidone carboxylic acids, ethoxylated and/or propoxylated C3-C6 diols and triols, alpha-hydroxy C2-C6 carboxylic acids, ethoxylated and/or propoxylated sugars, polyacrylic acid copolymers, sugars having up to about 12 carbons atoms, sugar alcohols having up to about 12 carbon atoms, and mixtures thereof.
• the hydrophobic conditioning agent may be selected from one or more hydrophobic conditioning agents such that the weighted arithmetic mean solubility parameter of the hydrophobic conditioning agent is less than or equal to 10.5. It is recognized, based on this mathematical definition of solubility parameters, that it is possible, for example, to achieve the required weighted arithmetic mean solubility parameter, i.e., less than or equal to 10.5, for a hydrophobic conditioning agent comprising two or more compounds if one of the compounds has an individual solubility parameter greater than 10.5.
• hydrophobic conditioning agents include those selected from the group consisting of mineral oil, petrolatum, lecithin, hydrogenated lecithin, lanolin, lanolin derivatives, C7-C40 branched chain hydrocarbons, C1-C30 alcohol esters of C1-C30 carboxylic acids, C1-C30 alcohol esters of C2-C30 dicarboxylic acids, monoglycerides of C1-C30 carboxylic acids, diglycerides of C1-C30 carboxylic acids, triglycerides of C1-C30 carboxylic acids, ethylene glycol monoesters of C1-C30 carboxylic acids, ethylene glycol diesters of C1-C30 carboxylic acids, propylene glycol monoesters of Cl- C30 carboxylic acids, propylene glycol diesters of C1-C30 carboxylic acids, C1-C30 carboxylic acid monoesters and polyesters of sugars, polydialkylsiloxanes, polydiaryls
• Lecithin is also useful as a hydrophobic conditioning agent. It is a naturally occurring mixture of the diglycerides of certain fatty acids, linked to the choline ester of phosphoric acid. Straight and branched chain hydrocarbons having from about 7 to about 40 carbon atoms are useful herein. Nonlimiting examples of these hydrocarbon materials include dodecane, isododecane, squalane, cholesterol, hydrogenated polyisobutylene, docosane (i.e. a C22 hydrocarbon), hexadecane, isohexadecane (a commercially available hydrocarbon sold as Permethyl® 101 A by Presperse, South Plainfield, NJ).
• solid esters examples include: sorbitol hexaester in which the carboxylic acid ester moieties are palmitoleate and arachidate in a 1:2 molar ratio; the octaester of raffinose in which the carboxylic acid ester moieties are linoleate and behenate in a 1 :3 molar ratio; the heptaester of maltose wherein the esterifying carboxylic acid moieties are sunflower seed oil fatty acids and lignocerate in a 3:4 molar ratio; the octaester of sucrose wherein the esterifying carboxylic acid moieties are oleate and behenate in a 2:6 molar ratio; and the octaester of sucrose wherein the esterifying carboxylic acid moieties are laurate, linoleate and behenate in a 1:3:4 molar ratio.
• a preferred solid material is sucrose polyester in which the degree of esterification is 7-8, and in which the fatty acid moieties are C18 mono- and/or di-unsaturated and behenic, in a molar ratio of unsaturates: behenic of 1:7 to 3:5.
• a particularly preferred solid sugar polyester is the octaester of sucrose in which there are about 7 behenic fatty acid moieties and about 1 oleic acid moiety in the molecule.
• Other materials include cottonseed oil or soybean oil fatty acid esters of sucrose. The ester materials are further described in, U. S. Patent No. 2,831,854, U. S. Patent No. 4,005,196, to Jandacek, issued January 25, 1977; U. S. Patent No.
• R 3 SiO[R 2 SiO] ⁇ SiR2 ⁇ H and HOR2SiO[R2SiO] x SiR 2 OH wherein R is an alkyl group (preferably R is methyl or ethyl, more preferably methyl) and x is an integer up to about 500, chosen to achieve the desired molecular weight.
• R is an alkyl group (preferably R is methyl or ethyl, more preferably methyl) and x is an integer up to about 500, chosen to achieve the desired molecular weight.
• dimethiconols are typically sold as mixtures with dimethicone or cyclomethicone (e.g. Dow Corning® 1401, 1402, and 1403 fluids).
• polyalkylaryl siloxanes with polymethylphenyl siloxanes having viscosities from about 15 to about 65 centistokes at 25°C being preferred. These materials are available, for example, as SF 1075 methylphenyl fluid (sold by General Electric Company) and 556 Cosmetic Grade phenyl trimethicone fluid (sold by Dow Corning Corporation). Alkylated silicones such as methyldecyl silicone and methyloctyl silicone are useful herein and are commercially available from General Electric Company. Also useful herein are alkyl modified siloxanes such as alkyl methicones and alkyl dimethicones wherein the alkyl chain contains 10 to 50 carbons.
• Examples of vegetable oils and hydrogenated vegetable oils include safflower oil, castor oil, coconut oil, cottonseed oil, menhaden oil, palm kernel oil, palm oil, peanut oil, soybean oil, rapeseed oil, linseed oil, rice bran oil, pine oil, sesame oil, sunflower seed oil, hydrogenated safflower oil, hydrogenated castor oil, hydrogenated coconut oil, hydrogenated cottonseed oil, hydrogenated menhaden oil, hydrogenated palm kernel oil, hydrogenated palm oil, hydrogenated peanut oil, hydrogenated soybean oil, hydrogenated rapeseed oil, hydrogenated linseed oil, hydrogenated rice bran oil, hydrogenated sesame oil, hydrogenated sunflower seed oil, and mixtures thereof.
• water may refer not only to water but also water soluble or water miscible agents like glycerin.
• Preferred therapeutic benefit components comprise an emulsion, which further comprises an aqueous phase and an oil phase.
• a given component will distribute primarily into either the aqueous or oil phase, depending on the water solubility/dispersibility of the therapeutic benefit agent in the component.
• the oil phase comprises one or more hydrophobic conditioning agents.
• the aqueous phase comprises one or more hydrophilic conditioning agents.
• Therapeutic benefit components in emulsion form will preferably further contain from about 1% to about 10%, more preferably from about 2% to about 5%, of an emulsifier, based on the weight of therapeutic benefit component.
• Emulsifiers may be nonionic, anionic or cationic. Suitable emulsifiers are disclosed in, for example, U.S. Patent 3,755,560, issued August 28, 1973, Dickert et al.; U.S. Patent 4,421,769, issued December 20, 1983, Dixon et al.; and McCutcheon's Detergents and Emulsifiers. North American Edition, pages 317-324 (1986).
• Therapeutic benefit components in emulsion form may also contain an anti-foaming agent to minimize foaming upon application to the skin. Anti-foaming agents include high molecular weight silicones and other materials well known in the art for such use.
• the therapeutic benefit component may also be in the form of a microemulsion.
• microemulsion refers to thermodynamic stable mixtures of two immiscible solvents (one apolar and the other polar) stabilized by an amphiphilic molecule, a surfactant.
• Preferred microemulsions include water- in-oil microemulsions.
• the cationic polymer is a synthetic backbone amphoteric type polymer. Even still more preferably, the cationic polymer is a polyamine.
• the polyamine may be hydrophobically or hydrophilically modified.
• the cationic polyamine polymer is selected from the group consisting of benzylated polyamines, ethoxylated polyamines, propoxylated polyamines, alkylated polyamines, amidated polyamines, esterified polyamines and combinations thereof.
• the coacervate-forming composition comprises from about 0.01% to about 20%, more preferably from about 0.05% to about 10%, and most preferably from about 0.1% to about 5%, by weight of the coacervate- forming composition, of the cationic polymer.
• anionic surfactants are suitable for use in the compositions of the present invention.
• anionic surfactants include the acyl isethionates (e.g., C 12 -C 30 ), alkyl and alkyl ether sulfates and salts thereof, alkyl and alkyl ether phosphates and salts thereof, alkyl methyl taurates (e.g., C 12 -C 3 0), monoalkanol amine phosphates and soaps (e.g., alkali metal salts like sodium or potassium salts) of fatty acids.
• acyl isethionates e.g., C 12 -C 30
• alkyl and alkyl ether sulfates and salts thereof alkyl and alkyl ether phosphates and salts thereof
• alkyl methyl taurates e.g., C 12 -C 3 0
• monoalkanol amine phosphates and soaps e.g., alkali metal salts like sodium or potassium salts
• the anionic surfactant is selected from the group consisting of sodium lauroyl sarcosinate, monosodium lauroyl glutamate, sodium alkyl sulfates, ammonium alkyl sulfates, sodium alkyleth sulfates, ammonium alkyleth sulfates, monoalkanol amine phosphates, and combinations thereof.
• Suitable gums include alginates (e.g., propylene glycol alginate), pectins, chitosans (e.g., chitosan lactate), and modified gums (e.g., starch octenyl succinate), and combinations thereof. More preferably, the anionic polymer is selected from the group consisting of polyacrylic acid polymers, polyacrylamide polymers, pectins, chitosans, and combinations thereof. Preferred articles of the present invention comprise from about 0.01% to about 20%, more preferably from about 0.05% to about 10%, and most preferably from about 0.1% to about 5%, by weight of the coacervate-forming composition, of the anionic polymer. Suitable cationic surfactants include, but are not limited to, those discussed herein.
• the therapeutic benefit component of the article is suitable for providing therapeutic or aesthetic skin or hair benefits by deposition onto such surfaces of not only conditioning agents but also various agents including, but not limited to, anti-acne actives, anti-wrinkle actives, anti-microbial actives, anti- fungal actives, anti-inflammatory actives, topical anesthetic actives, artificial tanning agents and accelerators, anti-viral agents, enzymes, sunscreen actives, anti-oxidants, skin exfoliating agents, and combinations thereof.
• agents including, but not limited to, anti-acne actives, anti-wrinkle actives, anti-microbial actives, anti- fungal actives, anti-inflammatory actives, topical anesthetic actives, artificial tanning agents and accelerators, anti-viral agents, enzymes, sunscreen actives, anti-oxidants, skin exfoliating agents, and combinations thereof.
• therapeutic benefit component may be contained within the cleansing component of the present invention or vice versa such that they form a unitary component with indistinguishable ingredients.
• conditioning agents to substrates employ processes and/or product rheologies unsuitable for the purposes of the present invention. For example, a process to dip the substrate web in a fluid bath of conditioning agent and then squeeze the substrate web through metering rolls, so called “dip and nip" processing, applies conditioning agent through the entire substrate and therefore does not afford opportunity for effective direct transfer of the composition off the cloth and onto another surface during use. Furthermore, many of the articles of the present invention utilize sufficient loadings of conditioning agent onto substrates to provide an effective whole body benefit, usually requiring about 100-200% loading rates based on the weight of the dry substrate.
• the articles of the present invention may also be packaged individually or with additional articles suitable for providing separate benefits not provided by the primary article, e.g., aesthetic, therapeutic, functional, or otherwise, thereby forming a personal care kit.
• the articles of the present invention may contain one or more skin treating agents.
• Suitable skin treating agents include those effective for preventing, retarding, arresting, and/or reversing skin wrinkles.
• artificial tanning actives and accelerators useful for the articles of the present invention include, but are not limited to, dihydroxyacetaone, tyrosine, tyrosine esters such as ethyl tyrosinate, and phospho-DOPA.
• the articles of the present invention may further comprise one or more anti-viral agents.
• Suitable anti-viral agents include, but are not limited to, metal salts (e.g., silver nitrate, copper sulfate, iron chloride, etc.) and organic acids (e.g., malic acid, salicylic acid, succinic acid, benzoic acid, etc.).
• metal salts e.g., silver nitrate, copper sulfate, iron chloride, etc.
• organic acids e.g., malic acid, salicylic acid, succinic acid, benzoic acid, etc.
• compositions which contain additional suitable anti-viral agents include those described in copending U. S. patent applications Serial Nos.
• sunscreens include those selected from the group consisting of 4-N,N-(2-ethylhexyl)methylaminobenzoic acid ester of 2,4-dihydroxybenzophenone, 4-N,N-(2-ethylhexyl)methylaminobenzoic acid ester with 4- hydroxydibenzoylmethane, 4-N,N- (2-ethylhexyl)-methylaminobenzoic acid ester of 2-hydroxy-4-(2- hydroxyethoxy)benzophenone, 4-N,N-(2-ethylhexyl)-methylaminobenzoic acid ester of 4-(2- hydroxyethoxy)dibenzoylmethane, and mixtures thereof.
• HydrocoUoids may also be optionally included in the articles of the present invention. HydrocoUoids are well known in the art and are helpful in extending the useful life of the surfactants contained in the cleansing component of the present invention such that the articles may last throughout at least one entire showering or bathing experience. Suitable hydrocolloids include, but are not limited to, xanthan gum, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxylpropyl cellulose, methyl and ethyl cellulose, natural gums, gudras guar gum, bean gum, natural starches, deionitized starches (e.g., starch octenyl succinate) and the like. Exothermic Zeolites
• Preferred cross-linking agents include the di- or polyesters of unsaturated mono- or polycarboxylic acids mono-allyl esters of polyols, the bisacrylamides, and the di- or tri-allyl amines.
• Specific examples of especially preferred cross-linking agents include N,N'- methylenebisacrylamide and trimethylol propane triacrylate.
• Hydrogel forming polymeric gelling agents suitable for use herein are also described in U. S. Patent 4,731 ,067, Le-Khac, issued March 15, 1988, U. S. Patent 4,743,244, Le-Khac, issued May 10, 1988, U. S. Patent 4,813,945, Le-Khac, issued March 21, 1989, U. S. Patent 4,880,868, Le-Khac, issued November 14, 1989, U. S. Patent 4,892,533, Le-Khac, issued January 9, 1990, U. S. Patent 5,026,784, Le- Khac, issued June 25, 1991, U. S. Patent 5,079,306, Le-Khac, issued January 7, 1992, U. S. Patent 5,151,465, Le-Khac, issued September 29, 1992, U.
• the articles of the present invention may also contain other hydrophilic gelling agents.
• These include carboxylic acid-containing polymers as otherwise described above, except which have relatively lower degrees of crosslinking, such that they exhibit a Tg below 140°C, as well as a variety of other water soluble or colloidally water soluble polymers, such as cellulose ethers (e.g. hydroxyethyl cellulose, methyl cellulose, hydroxy propylmethyl cellulose), polyvinylpyrrolidone, polyvinylalcohol, guar gum, hydroxypropyl guar gum and xanthan gum.
• Preferred among these additional hydrophilic gelling agents are the acid-containing polymers, particularly carboxylic acid-containing polymers.
• these polymers contain from about 96 to about 97.9 weight percent of acrylic acid and from about 2.5 to about 3.5 weight percent of acrylic esters wherein the alkyl group contains 12 to 22 carbon atoms, and R ] is methyl, most preferably the acrylate ester is stearyl methacrylate.
• the amount of crosslinking polyalkenyl polyether monomer is from about 0.2 to 0.4 weight percent.
• lathering surfactants include those selected from the group consisting of anionic lathering surfactants, nonionic lathering surfactants, cationic lathering surfactants, amphoteric lathering surfactants, and mixtures thereof.
• Anionic surfactants for use in the cleansing component include alkyl and alkyl ether sulfates. These materials have the respective formulae R10-S03M and Rl(CH2H40)x-0-S03M, wherein Rl is a saturated or unsaturated, branched or unbranched alkyl group from about 8 to about 24 carbon atoms, x is 1 to 10, and M is a water-soluble cation such as ammonium, sodium, potassium, magnesium, triethanolamine, diethanolamine and monoethanolamine.
• the alkyl sulfates are typically made by the sulfation of monohydric alcohols (having from about 8 to about 24 carbon atoms) using sulfur trioxide or other known sulfation technique.
• the alkyl ether sulfates are typically made as condensation products of ethylene oxide and monohydric alcohols (having from about 8 to about 24 carbon atoms) and then sulfated. These alcohols can be derived from fats, e.g., coconut oil or tallow, or can be synthetic.
• Specific examples of alkyl sulfates which may be used in the cleansing component are sodium, ammonium, potassium, magnesium, or TEA salts of lauryl or myristyl sulfate.
• alkyl ether sulfates which may be used include ammonium, sodium, magnesium, or TEA laureth-3 sulfate.
• Suitable anionic surfactants include olefin sulfonates of the form R1S03M, wherein Rl is a mono-olefin having from about 12 to about 24 carbon atoms, and M is a water-soluble cation such as ammonium, sodium, potassium, magnesium, triethanolamine, diethanolamine and monoethanolamine.
• Rl is a mono-olefin having from about 12 to about 24 carbon atoms
• M is a water-soluble cation such as ammonium, sodium, potassium, magnesium, triethanolamine, diethanolamine and monoethanolamine.
• Still other anionic surfactants suitable for this cleansing component include the primary or secondary alkane sulfonates of the form R1S03M, wherein Rl is a saturated or unsaturated, branched or unbranched alkyl chain from about 8 to about 24 carbon atoms, and M is a water-soluble cation such as ammonium, sodium, potassium, magnesium, triethanolamine, diethanolamine and monoethanolamine.
• Rl is a saturated or unsaturated, branched or unbranched alkyl chain from about 8 to about 24 carbon atoms
• M is a water-soluble cation such as ammonium, sodium, potassium, magnesium, triethanolamine, diethanolamine and monoethanolamine.
• Rl is a saturated or unsaturated, branched or unbranched alkyl chain from about 8 to about 24 carbon atoms
• M is a water-soluble cation such as ammonium, sodium, potassium, magnesium, triethanolamine, diethanolamine and monoethanolamine.
• Rl is a saturated or
• acyl isethionates Another class of anionic surfactants suitable for use in the cleansing component are the acyl isethionates.
• the acyl isethionates typically have the formula R1CO-0-CH2CH2S03M wherein Rl is a saturated or unsaturated, branched or unbranched alkyl group having from about 10 to about 30 carbon atoms, and M is a cation. These are typically formed by the reaction of fatty acids (having from about 8 to about 30 carbon atoms) with an alkali metal isethionate.
• Nonlimiting examples of these acyl isethionates include ammonium cocoyl isethionate, sodium cocoyl isethionate, sodium lauroyl isethionate, and mixtures thereof.
• alkylglyceryl ether sulfonates of the form Rl- OCH2-C(OH)H-CH2-S03M, wherein Rl is a saturated or unsaturated, branched or unbranched alkyl group from about 8 to about 24 carbon atoms, and M is a water-soluble cation such as ammonium, sodium, potassium, magnesium, triethanolamine, diethanolamine and monoethanolamine.
• Rl is a saturated or unsaturated, branched or unbranched alkyl group from about 8 to about 24 carbon atoms
• M is a water-soluble cation such as ammonium, sodium, potassium, magnesium, triethanolamine, diethanolamine and monoethanolamine.
• Rl is a saturated or unsaturated, branched or unbranched alkyl group from about 8 to about 24 carbon atoms
• M is a water-soluble cation such as ammonium, sodium, potassium, magnesium, triethanolamine, diethanolamine and monoethanolamine.
• Rl is a saturated
• Rl is a saturated or unsaturated, branched or unbranched alkyl group from about 8 to about 24 carbon atoms.
• These can be formed by the sulfonation of fatty acids or alkyl methyl esters (having from about 8 to about 24 carbon atoms) with sulfur trioxide or by another known sulfonation technique. Examples include alpha sulphonated coconut fatty acid and lauryl methyl ester.
• anionic materials include phosphates such as monoalkyl, dialkyl, and trialkylphosphate salts formed by the reaction of phosphorous pentoxide with monohydric branched or unbranched alcohols having from about 8 to about 24 carbon atoms. These could also be formed by other known phosphation methods.
• An example from this class of surfactants is sodium mono or dilaurylphosphate.
• anionic materials include acyl glutamates corresponding to the formula RICO-N(COOH)- CH2CH2-C02M wherein Rl is a saturated or unsaturated, branched or unbranched alkyl or alkenyl group of about 8 to about 24 carbon atoms, and M is a water-soluble cation.
• Rl is a saturated or unsaturated, branched or unbranched alkyl or alkenyl group of about 8 to about 24 carbon atoms
• M is a water-soluble cation.
• anionic materials include alkanoyl sarcosinates corresponding to the formula
• anionic materials include alkyl ether carboxylates corresponding to the formula Rl- (OCH2CH2)x-OCH2-C02M wherein Rl is a saturated or unsaturated, branched or unbranched alkyl or alkenyl group of about 8 to about 24 carbon atoms, x is 1 to 10, and M is a water-soluble cation.
• Rl is a saturated or unsaturated, branched or unbranched alkyl or alkenyl group of about 8 to about 24 carbon atoms
• x is 1 to 10
• M is a water-soluble cation.
• anionic materials include natural soaps derived from the saponification of vegetable and/or animal fats & oils exmaples of which include sodium laurate, sodium myristate, palmitate, stearate, tallowate, cocoate.
• any counter cation, M can be used on the anionic surfactant.
• the counter cation is selected from the group consisting of sodium, potassium, ammonium, monoethanolamine, diethanolamine, and triethanolamine. More preferably, the counter cation is ammonium.
• Nonionic lathering surfactants Nonlimiting examples of nonionic lathering surfactants for use in the compositions of the present invention are disclosed in McCutcheon's, Detergents and Emulsifiers. North American edition (1986), published by allured Publishing Co ⁇ oration; and McCutcheon's, Functional Materials. North American Edition (1992); both of which are inco ⁇ orated by reference herein in their entirety.
• Nonionic lathering surfactants useful herein include those selected from the group consisting of alkyl glucosides, alkyl polyglucosides, polyhydroxy fatty acid amides, alkoxylated fatty acid esters, sucrose esters, amine oxides, and mixtures thereof.
• Alkyl glucosides and alkyl polyglucosides are useful herein, and can be broadly defined as condensation products of long chain alcohols, e.g., C8-30 alcohols, with sugars or starches or sugar or starch polymers, i.e., glycosides or polyglycosides.
• These compounds can be represented by the formula (S) n -0-R wherein S is a sugar moiety such as glucose, fructose, mannose, and galactose; n is an integer of from about 1 to about 1000, and R is a C8-30 alkyl group.
• long chain alcohols from which the alkyl group can be derived include decyl alcohol, cetyl alcohol, stearyl alcohol, lauryl alcohol, myristyl alcohol, oleyl alcohol, and the like.
• Preferred examples of these surfactants include those wherein S is a glucose moiety, R is a C8-20 alkyl group, and n is an integer of from about 1 to about 9.
• Commercially available examples of these surfactants include decyl polyglucoside (available as APG 325 CS from Henkel) and lauryl polyglucoside (available as APG 600CS and 625 CS from Henkel).
• sucrose ester surfactants such as sucrose cocoate and sucrose laurate.
• R2 C N Z wherein: R is H, C -C . alkyl, 2-hydroxyethyl, 2-hydroxy- propyl, preferably C -C alkyl, more
• Other examples of nonionic surfactants include amine oxides.
• Amine oxides correspond to the general formula RjR2R3N ⁇ 0, wherein R j contains an alkyl, alkenyl or monohydroxy alkyl radical of from about 8 to about 18 carbon atoms, from 0 to about 10 ethylene oxide moieties, and from 0 to about 1 glyceryl moiety, and R2 and R3 contain from about 1 to about 3 carbon atoms and from 0 to about 1 hydroxy group, e.g., methyl, ethyl, propyl, hydroxyethyl, or hydroxypropyl radicals.
• the arrow in the formula is a conventional representation of a semipolar bond.
• amine oxides suitable for use in this invention include dimethyl-dodecylamine oxide, oleyldi(2-hydroxyethyl) amine oxide, dimethyloctylamine oxide, dimethyl-decylamine oxide, dimethyl-tetradecylamine oxide, 3,6,9- trioxaheptadecyldiethylamine oxide, di(2-hydroxyethyl)-tetradecylamine oxide, 2- dodecoxyethyldimethylamine oxide, 3-dodecoxy-2-hydroxypropyldi(3-hydroxypropyl)amine oxide, dimethylhexadecylamine oxide.
• Nonlimiting examples of preferred nonionic surfactants for use herein are those selected form the group consisting of C8-C14 glucose amides, C8-C14 alkyl polyglucosides, sucrose cocoate, sucrose laurate, lauramine oxide, cocoamine oxide, and mixtures thereof.
• Cationic Lathering Surfactants are those selected form the group consisting of C8-C14 glucose amides, C8-C14 alkyl polyglucosides, sucrose cocoate, sucrose laurate, lauramine oxide, cocoamine oxide, and mixtures thereof.
• Cationic lathering surfactants are also useful in the articles of the present invention.
• Suitable cationic lathering surfactants include, but are not limited to, fatty amines, di-fatty quaternary amines, tri- fatty quaternary amines, imidazolinium quaternary amines, and combinations thereof.
• Suitable fatty amines include monalkyl quaternary amines such as cetyltrimethylammonium bromide.
• a suitable quaternary amine is dialklamidoethyl hydroxyethylmonium methosulfate. The fatty amines, however, are preferred.
• amphoteric lathering surfactants can be used in the compositions of the present invention. Particularly useful are those which are broadly described as derivatives of aliphatic secondary and tertiary amines, preferably wherein the nitrogen is in a cationic state, in which the aliphatic radicals can be straight or branched chain and wherein one of the radicals contains an ionizable water solubilizing group, e.g., carboxy, sulfonate, sulfate, phosphate, or phosphonate.
• an ionizable water solubilizing group e.g., carboxy, sulfonate, sulfate, phosphate, or phosphonate.
• R ⁇ and R ⁇ are CH3;
• R has from about 9 to about 13 carbon atoms
• amphoteric surfactants examples include alkyliminoacetates, and iminodialkanoates and aminoalkanoates of the formulas RN[CH Stamm) CO rememberM]schreib and RNH(CH remember) CO courseM wherein m is from 1 to
• Preferred lathering surfactants are selected from the group consisting of anionic lathering surfactants selected from the group consisting of ammonium lauroyl sarcosinate, sodium trideceth sulfate, sodium lauroyl sarcosinate, ammonium laureth sulfate, sodium laureth sulfate, ammonium lauryl sulfate, sodium lauryl sulfate, ammonium cocoyl isethionate, sodium cocoyl isethionate, sodium lauroyl isethionate, sodium cetyl sulfate, sodium monolauryl phospate, sodium cocoglyceryl ether sulfonate, sodium C 9 -C 22 soap, and combinations thereof; nonionic lathering surfactants selected from the group consisting of lauramine oxide, cocoamine oxide, decyl polyglucose, lauryl polyglucose, sucrose cocoate, C12-14 glucosamides, suc
• R j is an alkyl group having from about 12 to about 18 carbon atoms
• R2 is selected from H or an alkyl group having from about 1 to about 18 carbon atoms
• R3 and R4 are independently selected from H or an alkyl group having from about 1 to about 3 carbon atoms
• X is as described in the previous paragraph.
• R j is an alkyl group having from about 12 to about 18 carbon atoms; R2, R3, and R4 are selected from H or an alkyl group having from about 1 to about 3 carbon atoms; and X is as described previously.
• other useful cationic surfactants include amino-amides, wherein in the above structure R j is alternatively R5CO-(CH2) n -, wherein R5 is an alkyl group having from about 12 to about
• Nonlimiting examples of these cationic emulsifiers include stearamidopropyl PG-dimonium chloride phosphate, stearamidopropyl ethyldimonium ethosulfate, stearamidopropyl dimethyl (myristyl acetate) ammonium chloride, stearamidopropyl dimethyl cetearyl ammonium tosylate, stearamidopropyl dimethyl ammonium chloride, stearamidopropyl dimethyl ammonium lactate, and mixtures thereof.
• Additional quaternary ammonium salts include those wherein the C12 to C22 alkyl carbon chain is derived from a tallow fatty acid or from a coconut fatty acid.
• tallow refers to an alkyl group derived from tallow fatty acids (usually hydrogenated tallow fatty acids), which generally have mixtures of alkyl chains in the C16 to C18 range.
• coconut refers to an alkyl group derived from a coconut fatty acid, which generally have mixtures of alkyl chains in the C12 to C14 range.
• Preferred cationic surfactants useful herein include those selected from the group consisting of dilauryl dimethyl ammonium chloride, distearyl dimethyl ammonium chloride, dimyristyl dimethyl ammonium chloride, dipalmityl dimethyl ammonium chloride, distearyl dimethyl ammonium chloride, and mixtures thereof.
• the articles of the present invention may also comprise a safe and effective amount of a chelator or chelating agent.
• chelator or “chelating agent” means an active agent capable of removing a metal ion from a system by forming a complex so that the metal ion cannot readily participate in or catalyze chemical reactions.
• the inclusion of a chelating agent is especially useful for providing protection against UV radiation that can contribute to excessive scaling or skin texture changes and against other environmental agents, which can cause skin damage.
• a safe and effective amount of a chelating agent may be added to the compositions of the subject invention, preferably from about 0.1% to about 10%, more preferably from about 1% to about 5%, of the composition. Exemplary chelators that are useful herein are disclosed in U.S.
• Preferred chelators useful in compositions of the subject invention are furildioxime and derivatives thereof. Flavonoids
• Flavonoids are broadly disclosed in U.S. Patents 5,686,082 and 5,686,367, both of which are herein inco ⁇ orated by reference.
• Flavonoids suitable for use in the present invention are flavanones selected from the group consisting of unsubstituted flavanones, mono-substituted flavanones, and mixtures thereof; chalcones selected from the group consisting of unsubstituted chalcones, mono-substituted chalcones, di-substituted chalcones, tri-substituted chalcones, and mixtures thereof; flavones selected from the group consisting of unsubstituted flavones, mono-substituted flavones, di-substituted flavones, and mixtures thereof; one or more isoflavones; coumarins selected from the group consisting of unsubstituted cou
• unsubstituted flavanone methoxy flavanones, unsubstituted chalcone, 2', 4-dihydroxy chalcone, and mixtures thereof.
• unsubstituted flavanone especially the trans isomer
• chalcone especially the trans isomer
• Flavonoid compounds useful herein are commercially available from a number of sources, e.g., Indofine Chemical Company, Inc. (Somerville, New Jersey), Steraloids, Inc. (Wilton, New Hampshire), and Aldrich Chemical Company, Inc. (Milwaukee, Wisconsin).
• the herein described flavonoid compounds are preferably present in the instant invention at concentrations of from about 0.01% to about 20%, more preferably from about 0.1% to about 10%, and most preferably from about 0.5% to about 5%.
• Sterols are preferably present in the instant invention at concentrations of from about 0.01% to about 20%, more preferably from about 0.1% to about 10%, and most preferably from about 0.5% to about 5%.
• the articles of the present invention may comprise a safe and effective amount of one or more sterol compounds.
• useful sterol compounds include sitosterol, stigmasterol, campesterol, brassicasterol, lanosterol, 7-dehydrocholesterol, and mixtures thereof. These can be synthetic in origin or from natural sources, e.g., blends extracted from plant sources (e.g., phytosterols).
• Anti-Cellulite Agents include sitosterol, stigmasterol, campesterol, brassicasterol, lanosterol, 7-dehydrocholesterol, and mixtures thereof. These can be synthetic in origin or from natural sources, e.g., blends extracted from plant sources (e.g., phytosterols).
• Anti-Cellulite Agents include sitosterol, stigmasterol, campesterol, brassicasterol, lanosterol, 7-dehydrocholesterol, and mixtures thereof. These can be synthetic in origin or from natural sources, e.g., blends
• the articles of the present invention may also comprise a safe and effective amount of an anti- cellulite agent.
• Suitable agents may include, but are not limited to, xanthine compounds (e.g., caffeine, theophylline, theobromine, and aminophylline).
• Materials suitable for use in the additional layer having a thickness of at least one millimeter include, but are not limited to, those web materials disclosed in U. S. Patent No. 5,518,801, issued to Chappell et al. on May 21, 1996, which is inco ⁇ orated by reference herein in its entirety.
• the present invention also relates to a method of cleansing the skin and/or hair with a personal care article of the present invention.
• These methods comprise the steps of: a) wetting with a substantially dry, disposable personal care article, said article comprising a water insoluble substrate comprising a nonwoven layer; and a therapeutic benefit component, disposed adjacent to said water insoluble substrate, wherein said component comprises from about 10% to about 1000%, by weight of the water insoluble substrate, of a therapeutic benefit composition comprising a hydrophilic conditioning agent wherein the agent exhibits a Leaching Value of less than about 25% at 5 minutes and less than about 50% at 30 minutes when the article is exposed to water and b) contacting the skin or hair with the wetted article.
• a representative powdery cleansing component for the articles of the present invention is prepared in the following manner.
• Blend the bar soap flakes with sodium bicarbonate in a 90:10 weight ratio Mill the mixture twice in a standard 3-roll mill. Collect the flakes and store in a suitable sealed container.
• Example 6 Prepare a representative cleansing component for the articles of the present invention in the following manner. Blend the cleansing component of Example 2 with 0.1% by weight of the bar soap flakes of a protease enzyme. Next, blend the resultant mixture with 2% by weight of the cleansing component of a dry hydrocolloid, sodium carboxymethylcellulose, and mill. Store the enzyme cleansing component in a suitable sealed container.
• Example 6 Blend the cleansing component of Example 2 with 0.1% by weight of the bar soap flakes of a protease enzyme. Next, blend the resultant mixture with 2% by weight of the cleansing component of a dry hydrocolloid, sodium carboxymethylcellulose, and mill. Store the enzyme cleansing component in a suitable sealed container.
• Example 14 Melt the ethylene vinyl acetate polymer into the SEFA cottonate at 90 degrees Celsius and high shear mix. Add the surfactant powders and citric acid and mix. Add the silicone polymer microbeads, mix, and cool to set. The composition is remeltable and easy impregnates into or coat onto cloths.
• Example 14 Melt the ethylene vinyl acetate polymer into the SEFA cottonate at 90 degrees Celsius and high shear mix. Add the surfactant powders and citric acid and mix. Add the silicone polymer microbeads, mix, and cool to set. The composition is remeltable and easy impregnates into or coat onto cloths. Example 14
• Examples 23-27 Prepare a representative skin conditioning component by mixing the following components.
• Examples 29-31 Prepare a representative skin conditioning component by mixing the following components.
• hydrophobic phase Heat the hydrophobic phase to 70°C, add the hydrophobic active skin care ingredients, and stir until homogenous. Premix the hydrophilic phase ingredients with the hydrophilic active skin care ingredients, heating gently if necessary to dissolve or disperse them. Add these slowly to the hydrophobic phase, continuing to stir. Homogenize (high shear mixer; ultrasonic homogenizer; or high pressure homogenizer such as Microfluidizer from Microfluidics Co ⁇ .). Apply immediately to substrate surface or cool rapidly to below room temperature in ice or ice water. Store in controlled environment, under nitrogen if needed for chemical stability.
• Examples 37-41 Prepare a representative conditioning component as described in Examples 32-36 using the following ingredients.
• Example 43 Glycerin inco ⁇ orated into microspheres, then blended into molten lipid phase and cooled for storage or applied to substrate.
• Epomin SP-018 available as Epomin SP-018 from Nippon Shokubai Co.
• Epomin SP-018 molecular weight about 1800, from Nippon Shokubai Co.
• Epomin SP-018 molecular weight about 1800, from Nippon Shokubai Co.
• Example 75 Prepare a representative skin cleansing article in the following manner.
• Example 1 1 Four grams of the cleansing component of Example 1 1 is applied to one side of a permeable, fusible web comprised of low-melting heat-sealable polyamide fibers.
• the permeable web is Wonder Under manufactured by Pellon, available from H. Levinson & Co., Chicago, IL.
• the cleansing component is applied to an oval area approximately 13 cm by 18 cm.
• the cleansing component is air dried.
• a layer of 2 oz/sq yd polyester batting cut to the same size as the web is placed over the fusible web.
• the polyester batting has a basis weight of 2 oz/yd 2 and is comprised of a blend of fibers of about 23 microns and 40 microns average diameter, at least some of which are crimped.
• Example 76 Prepare a representative skin cleansing article in the following manner.
• the cleansing component of Example 11 is applied to one side of a first substrate by extruding it through a coating head continuously in four lines separated by a distance of 20 mm, 40 mm, and 20 mm respectively, measuring widthwise across the web, making a pair of parallel lines on each side of the web.
• the cleansing component is extruded at a rate to yield 4.4 grams of cleansing component per finished article.
• the substrate is a spunlace blend of 70% rayon and 30% PET fibers, bonded with a styrene- butadiene adhesive, which is hydroapertured to form holes about 2 mm in diameter and having a basis weight of about 70 gsm.
• a second web which is an airlaid, lofty, low density batting is continuously fed over the first substrate placing it in contact with the surfactant-containing layer.
• the batting comprises a blend of 30% 15 denier PET fibers, 35% 3 denier bicomponent fibers with PET core and PE sheath, and 35% 10 denier bicomponent fibers of the same core-sheath composition, and has a basis weight of about 100 grams per square meter (gsm).
• the webs are continuously fed to an ultrasonic sealer which seals a dot pattern comprising a grid of 4 mm diameter sealing points spaced evenly across the web.
• the web is cut into individual articles measuring about 120 mm x 160 mm rectangles with rounded corners, which has a total of about 51 sealing points per article.
• Example 78 Three grams of the skin conditioning composition of Example 34 is applied, half to each side, of the finished article of Example 75.
• the composition is applied by slot coating the composition as a hot liquid (60-70°C) to the article surfaces evenly, half of the composition on each side of the article.
• Example 78
• Example 79 Three grams of the skin conditioning composition of Example 18 is applied, half to each side, of the finished article of Example 75.
• the composition is applied by slot coating the composition as a hot liquid (60-70°C) to the article surfaces evenly, half of the composition on each side of the article.
• Example 79
• Example 80 Prepare a representative skin cleansing and conditioning article in the following manner.
• Example 18 Three grams of the skin conditioning composition of Example 18 is applied, half to each side, of the finished article of Example 76.
• the composition is applied by slot coating the composition as a hot liquid (60-70°C) to the article surfaces evenly, half of the composition on each side of the article.
• Example 82 Prepare a representative skin cleansing and conditioning article in the following manner.
• Example 65 Three grams of the skin conditioning composition of Example 65 is applied, half to each side, of the finished article of Example 76.
• the composition is applied by slot coating the composition as a hot liquid (60-70°C) to the article surfaces evenly, half of the composition on each side of the article.
• Example 83 Prepare a representative skin cleansing article in the following manner.
• a second web which is an airlaid, lofty, low density batting is continuously fed over the first substrate placing it in contact with the surfactant-containing layer.
• the batting comprises a blend of 30% 15 denier PET fibers, 35% 3 denier bicomponent fibers with PET core and PE sheath, and 35% 10 denier bicomponent fibers of the same core-sheath composition, and has a basis weight of about 100 grams per square meter (gsm).
• the webs are continuously fed to an ultrasonic sealer which seals a dot pattern comprising a grid of 4 mm diameter sealing points spaced evenly across the web.
• the web is cut into individual articles measuring about 120 mm x 480 mm rectangles with rounded corners.
• Example 84 Prepare a representative skin cleansing article in the following manner.
• the cleansing component of Example 1 1 is applied to one side of a first substrate by extruding it through a coating head continuously in four lines separated by a distance of 20 mm, 40 mm, and 20 mm respectively, measuring widthwise across the web, making a pair of parallel lines on each side of the web.
• the cleansing component is extruded at a rate to yield 4.4 grams of cleansing component per finished article.
• the substrate is a spunlace blend of 70% rayon and 30% PET fibers, bonded with a styrene- butadiene adhesive, which is hydroapertured to form holes about 2 mm in diameter and having a basis weight of about 70 gsm.
• Example 12 Four grams of the cleansing component of Example 12 is applied to one side of a permeable, fusible web comprised of low-melting heat-sealable polyamide fibers.
• the permeable web is Wonder Under manufactured by Pellon, available from H. Levinson & Co., Chicago, IL.
• the cleansing component is applied to an oval area approximately 13 cm by 18 cm.
• the cleansing component is air dried.
• a layer of 2 oz/sq yd polyester batting cut to the same size as the web is placed over the fusible web.
• the polyester batting has a basis weight of 2 oz/yd 2 and is comprised of a blend of fibers of about 23 microns and 40 microns average diameter, at least some of which are crimped.
• the thickness of the batting is about 0.23 in. measured at 5 gsi.
• the batting has an air permeability of about 1270 cfm/ft 2 and a foam permeability critical pressure of about 2.7 cm H 2 0.
• the batting is believed to be heat-bonded, utilizing no adhesive.
• a layer of a nonwoven is placed under the fusible web to form the second side of the article.
• the nonwoven is a spunlace blend of 70% rayon and 30% PET fibers, bonded with a styrene-butadiene adhesive, which is hydroapertured to form holes about 2 mm in diameter and having a basis weight of about 70 gsm.
• the shape of the article is about 122 mm x 160 mm oval.
• the layers are sealed together using point bonds in a grid pattern with a heat sealing die utilizing a pressure-platen heat sealing device such as a Sentinel Model 808 heat sealer available from Senco ⁇ , Hyannis, MA.
• the point bonds measure about 4 mm diameter each and there are about 51 individual sealing points evenly spaced.
• the article is trimmed and ready for use. Examples 86-88
• a permeable, fusible web comprised of low-melting heat-sealable fibers in four quadrants forming a rectangle about 10 inches by 12 inches, leaving space at the edge and between quadrants to seal layers without the presence of surfactant.
• the permeable web is a fibrous, low density polyethylene (LDPE or LLDPE) material commonly available from sewing supply distributors.
• LDPE low density polyethylene
• a layer of 4 oz/sq yd polyester batting cut to the same size as the web is placed over the fusible web.
• the polyester batting has a basis weight of 4 oz/yd 2 and is comprised of polyester fibers of about 30 microns average diameter and is adhesive bonded, available for example as Mountain Mist Extra Heavy Batting #205 from Stearns Textiles, Cincinnati, OH.
• a layer of fibrous nonwoven which is a hydroentangled blend of 55% cellulose and 45% polyester having a basis weight of about 65 gsm (available as Technicloth II from The Texwipe Company, Saddle River, NJ) is placed under the fusible web.
• the layers are sealed together in a rectangular windowpane shape with a heat sealing die utilizing a pressure-platen heat sealing device such as a Sentinel Model 808 heat sealer available from Senco ⁇ , Hyannis, MA with sufficient temperature and pressure to cause the batting to melt and flow into the first layer and hence form an adequate seal, usually about 300 degrees Fahrenheit and 30 psi machine pressure sealing for 6-10 seconds is sufficient.
• the seal is continuous around the edges and has a single windowpane cross-member in each X- and Y-direction measuring about 2 mm width. After cooling the article is trimmed and the corners rounded and it is stored until ready for use. Examples 89-90
• a permeable, fusible web comprised of low-melting heat-sealable fibers.
• the permeable web is Wonder Under manufactured by Pellon, available from H. Levinson & Co., Chicago, IL.
• the powder is sprinkled evenly over an oval area approximately 17 cm by 19 cm.
• a layer of 2 oz/sq yd polyester batting cut to the same size as the web is placed over the fusible web.
• the polyester batting has a basis weight of 2 oz/yd 2 and is comprised of a blend of fibers of about 23 microns and 40 microns average diameter, at least some of which are crimped.
• the thickness of the batting is about 0.23 in.
• a second nonwoven layer is prepared which is hydroapertured, comprising polyester fibers of about 10 microns diameter and containing within it an interlaced polypropylene scrim having a fiber diameter about 150 microns, laced at about 0.8 cm intervals.
• the second layer is cut larger than the required article dimensions and placed in a convection oven at a temperature of about 150 degrees Celsius for about 10 minutes, until the X- and Y-dimensions of the layer have shrunk to about 70 percent of their original size and the layer has a macroscopic thickness of about 0.12 in. measured at 5 gsi.
• the layer has a macroscopic average basis weight of about 64 gsm before shrinking, and apertures measuring about 0.5 mm average diameter.
• the second layer is placed under the fusible web and the layers are sealed together using point bonds and also a 2 mm wide seal around the perimeter with a heat sealing die utilizing a pressure-platen heat sealing device such as a Sentinel Model 808 heat sealer available from Senco ⁇ , Hyannis, MA.
• the point bonds measure about 3 mm diameter each and there are about 51 individual sealing points evenly spaced.
• the article is trimmed, and 2.5 grams of the skin conditioning composition of Example 25 is applied to the lofty batting side of the article by feeding the composition through a slotted rolling device with a machined 1.5 mm gap and a feed reservoir held at about 60°C.
• the composition quickly cools on the article surface and is stored in a sealed, metallized film package until ready for use. Examples 91-96
• Liquid cleansing component is applied to one side of a first substrate by coating with a brush until 2 grams of solid cleansing component has been applied, in a windowpane design avoiding the edges and the sealing loci.
• the substrate is a spunlace blend of 70% rayon and 30% PET fibers, bonded with a styrene-butadiene adhesive, which is hydroapertured to form holes about 2 mm in diameter and having a basis weight of about 70 gsm.
• the substrates are air dried in a convection oven at 45°C for about 6 hours or until dry to the touch.
• a second substrate which is an airlaid, lofty, low density batting is placed over the first substrate placing it in contact with the surfactant-containing layer.
• the batting comprises a blend of 30% 15 denier PET fibers, 35% 3 denier bicomponent fibers with PET core and PE sheath, and 35% 10 denier bicomponent fibers of the same core-sheath composition, and has a basis weight of about 100 grams per square meter (gsm).
• the layers are sealed together in a rectangular windowpane shape with a heat sealing die utilizing a pressure-platen heat sealing device such as a Sentinel Model 808 heat sealer available from Senco ⁇ , Hyannis, MA with sufficient temperature and pressure to cause the batting to melt and flow into the first layer and hence form an adequate seal, usually about 300 degrees Fahrenheit and 30 psi machine pressure sealing for 6-10 seconds is sufficient.
• the seal is continuous around the edges and has a single windowpane cross-member in each X- and Y-direction measuring about 2 mm width.
• Example 7 Prepare representative skin cleansing and conditioning articles with the liquid cleansing components of Example 7 and the skin conditioning compositions of Examples 19 through 24 in the following manner.
• Four strips of the liquid cleansing component are extruded continuously on a moving first web which is an airlaid, lofty, low density batting.
• the batting comprises a blend of 30% 15 denier PET fibers, 35% 3 denier bicomponent fibers with PET core and PE sheath, and 35% 10 denier bicomponent fibers of the same core-sheath composition, and has a basis weight of about 100 grams per square meter (gsm), and is airlaid and heat bonded with no adhesive.
• the liquid cleansing component is heated to melting point and held in a reservoir at about 65°C and fed by pump to an extrusion head which continuously meters 4 cylindrical strands onto the web at even spacing across the web, to achieve a final add-on rate of about 5 grams of composition per finished article.
• a second web which is a microapertured and macroapertured formed film which is the formed film of U.S. Patent No. 4,629,643 is continuously fed onto the first web, macroapertured male side towards the batting and cleansing component.
• the skin conditioning composition is slot coated evenly onto the exposed batting surface at a rate of 3 grams of composition per finished article while hot, cooling on the article surface to solidify.
• the webs are continuously sealed and cut into 120mm by 160 mm rectangles with rounded corners using a heated metal roll and a pressure roll applied against the formed film side.
• the articles are packaged until ready for use. Examples 103-105
• the substrate is an airlaid, lofty, low density batting comprising a blend of 30% 15 denier PET fibers, 35% 3 denier bicomponent fibers with PET core and PE sheath, and 35% 10 denier bicomponent fibers of the same core-sheath composition, and has a basis weight of about 100 grams per square meter (gsm).
• the cleansing component is dried.
• a second substrate which is a high wet strength, adhesive bonded cellulose paper towel with good loft and a basis weight of about 53 gsm is placed over the cleansing component exposed side of the batting.
• a useful towel is available from The Procter & Gamble Company and marketed as Bounty Rinse & Reuse ®, which retains its Z-direction height when wet, and which has a thickness of about 0.047 inches at 5 gsi and a Loft/Soft ratio of about 1.28.
• the layers are sealed together in a rectangular windowpane shape with a heat sealing die utilizing a pressure-platen heat sealing device such as a Sentinel Model 808 heat sealer available from Senco ⁇ , Hyannis, MA with sufficient temperature and pressure to form an adequate seal.
• the seal is continuous around the edges and has a single windowpane cross-member in each X- and Y-direction measuring about 2 mm width.
• Example 106 Prepare a representative skin cleansing and conditioning article in the following manner.
• the cleansing component of Example 12 is applied to one side of a first substrate by extruding it through a coating head continuously in four lines separated by a distance of 20 mm, 40 mm, and 20 mm respectively, measuring widthwise across the web, making a pair of parallel lines on each side of the web.
• the cleansing component is extruded at a rate to yield 4.4 grams of cleansing component per finished article.
• the substrate is a spunlace blend of 70% rayon and 30% PET fibers, bonded with a styrene- butadiene adhesive, which is hydroapertured to form holes about 2 mm in diameter and having a basis weight of about 70 gsm.
• a second substrate web which is an airlaid, lofty, low density batting is continuously fed over the first substrate placing it in contact with the surfactant layer.
• the batting comprises a blend of 30% 15 denier PET fibers, 35% 3 denier bicomponent fibers with PET core and PE sheath, and 35% 10 denier bicomponent fibers of the same core-sheath composition, and has a basis weight of about 100 grams per square meter (gsm).
• a third substrate web which is the same as the second substrate web is continuously fed over the second substrate web placing it in contact with the second substrate.
• the webs are continuously fed to an ultrasonic sealer which seals a dot pattern comprising a grid of 4 mm diameter sealing points spaced evenly across the web.
• the skin conditioning liquid of Example 53 is sprayed onto the web at a rate of about 25 gsm per side, or about 0.5 grams of composition per finished article.
• the web is cut into individual articles measuring about 120 mm x 90 mm rectangles with rounded corners and packaged until ready for use.
• the low water activity cleansing component of Example 2 is three-roll milled with aluminosilicate (available as Advera 401 N from The PQ Co ⁇ oration, Valley Forge, PA, which generates heat due to an exothermic reaction upon exposure to water) in a ratio of 1 :1.
• aluminosilicate available as Advera 401 N from The PQ Co ⁇ oration, Valley Forge, PA, which generates heat due to an exothermic reaction upon exposure to water
• Ten grams the cleansing component is applied to one side of a layer of batting.
• the batting is an airlaid, lofty, low density batting comprising a blend of 30% 15 denier PET fibers, 35% 3 denier bicomponent fibers with PET core and PE sheath, and 35% 10 denier bicomponent fibers of the same core-sheath composition, and has a basis weight of about 100 grams per square meter (gsm).
• a second nonwoven layer is prepared which is hydroapertured, comprising polyester fibers of about 10 microns diameter and containing within it an interlaced scrim having a fiber diameters about 100 microns running across the width of the nonwoven and about 250 microns orthogonal to the width, laced (bonded) at about 1 cm intervals.
• Such a scrim is available from Conwed plastics, Minneapolis, MN.
• the second nonwoven has a basis weight of about 70 gsm, and is slightly creped due to web tension during manufacture of the nonwoven, and subsequent relaxation of the tension.
• the layers are sealed together using point bonds and also a 2 mm wide seal around the perimeter with a heat sealing die utilizing a pressure-platen heat sealing device such as a Sentinel Model 808 heat sealer available from Senco ⁇ , Hyannis, MA.
• the point bonds measure about 3 mm diameter each and there are about 51 individual sealing points evenly spaced.
• the article is trimmed, and 4 grams of skin conditioning composition is applied to the lofty batting side of the article by feeding the composition through a slotted rolling device with a machined 1.5 mm gap and a feed reservoir held at about 60°C.
• the composition quickly cools on the article surface and is stored in a sealed, metallized film package until ready for use. Examples 109-116
• a layer of fibrous nonwoven which is a hydroentangled blend of 55% cellulose and 45% polyester having a basis weight of about 65 gsm (available as Technicloth II from The Texwipe Company, Saddle River, NJ) is placed over the cleansing component coated side of the batting.
• the layers are sealed together using interlocking sealing plates using an unheated plate having inverted thimble-shaped reservoirs spaced evenly in a hexagonal grid pattern.
• the thimble shaped reservoirs are about 1.2 cm diameter at the base and are spaced about 2 cm apart, center-to-center.
• the land area between the dimples on the unheated plate is concave inwards by several mm, forming an interconnected trough.
• the polyester batting has a basis weight of 4 oz/yd 2 and is comprised of polyester fibers of about 30 microns average diameter and is adhesive bonded, available for example as Mountain Mist Extra Heavy Batting #205 from Steams Textiles, Cincinnati, OH.
• a layer of fibrous nonwoven which is a hydroentangled blend of 55% cellulose and 45% polyester having a basis weight of about 65 gsm (available as Technicloth II from The Texwipe Company, Saddle River, NJ) is placed under the fusible web.
• the cleansing component of Example 1 1 is applied to one side of a first substrate by extruding it through a coating head continuously in four lines separated by a distance of 20 mm, 40 mm, and 20 mm respectively, measuring widthwise across the web, making a pair of parallel lines on each side of the web.
• the cleansing component is extruded at a rate to yield 4.4 grams of cleansing component per finished article.
• the substrate is a spunlace blend of 70% rayon and 30% PET fibers, bonded with a styrene- butadiene adhesive, which is hydroapertured to form holes about 2 mm in diameter and having a basis weight of about 70 gsm.
• a second substrate web which is an airlaid, lofty, low density batting is continuously fed over the first substrate placing it in contact with the surfactant -containing ayer.
• the batting comprises a blend of 30% 15 denier PET fibers, 35% 3 denier bicomponent fibers with PET core and PE sheath, and 35% 10 denier bicomponent fibers of the same core-sheath composition, and has a basis weight of about 100 grams per square meter (gsm).
• a third substrate web which is the same as the second substrate web is continuously fed over the second substrate web placing it in contact with the second substrate.
• the webs are continuously fed to an ultrasonic sealer which seals a dot pattern comprising a grid of 4 mm diameter sealing points spaced evenly across the web.
• the cleansing component of Example 1 1 is applied to one side of a first substrate by extruding it through a coating head continuously in four lines separated by a distance of 20 mm, 40 mm, and 20 mm respectively, measuring widthwise across the web, making a pair of parallel lines on each side of the web.
• the cleansing component is extruded at a rate to yield 4.4 grams of cleansing component per finished article.
• the substrate is a spunlace blend of 70% rayon and 30% PET fibers, bonded with a styrene- butadiene adhesive, which is hydroapertured to form holes about 2 mm in diameter and having a basis weight of about 70 gsm.
• a second substrate web which is an airlaid, lofty, low density batting is continuously fed over the first substrate placing it in contact with the surfactant-containing layer.
• the batting comprises a blend of 30% 15 denier PET fibers, 35% 3 denier bicomponent fibers with PET core and PE sheath, and 35% 10 denier bicomponent fibers of the same core-sheath composition, and has a basis weight of about 100 grams per square meter (gsm).
• a third substrate web which is the same as the second substrate web is continuously fed over the second substrate web placing it in contact with the second substrate.
• the webs are continuously fed to an ultrasonic sealer which seals a dot pattern comprising a grid of 4 mm diameter sealing points spaced evenly across the web.
• Skin conditioning composition is slot coated from a hot reservoir pumped through a slot dye onto both sides of the substrate web at a rate equal to 3 grams of skin conditioning composition per finished article (about 140 gsm add-on per side), and passed across a cooling fan so the composition cools quickly on the article outer surfaces.
• the slot coating reservoir is continuously mixed to maintain stability of the emulsion.
• the web is cut into individual articles measuring about 120 mm x 90 mm rectangles with rounded comers. Examples 146-147
• a first substrate and a second substrate are cut to about 12 inch by 9 inch rectangles.
• the first substrate is a spunlace blend of 70% rayon and 30% PET fibers, bonded with a styrene-butadiene adhesive, which is hydroapertured to form holes about 2 mm in diameter and having a basis weight of about 70 gsm.
• the second substrate is a batting comprising a blend of 30% 15 denier PET fibers, 35% 3 denier bicomponent fibers with PET core and PE sheath, and 35% 10 denier bicomponent fibers of the same core- sheath composition, and has a basis weight of about 100 grams per square meter (gsm).
• the substrates are sealed together in a windowpane design with a heat sealing die utilizing a pressure-platen heat sealing device such as a Sentinel Model 808 heat sealer available from Senco ⁇ , Hyannis, MA with sufficient temperature and pressure to cause the batting to melt and flow into the first layer and hence form an adequate seal, usually about 300 degrees Fahrenheit and 30 psi machine pressure sealing for 6-10 seconds is sufficient.
• the seal is continuous around the edges and has a single windowpane cross-member in each X- and Y-direction measuring about 2 mm width. After cooling the article is trimmed to about 1 1 inches by 8.5 inches, and 10 grams of skin cleansing and conditioning composition is brushed onto the outer surfaces of both sides, about half the composition per side. The composition is dried and the article is stored until ready for use. Examples 148-149
• a first substrate and a second substrate are cut to about 12 inch by 9 inch rectangles.
• the first substrate is a spunlace blend of 70% rayon and 30% PET fibers, bonded with a styrene-butadiene adhesive, which is hydroapertured to form holes about 2 mm in diameter and having a basis weight of about 70 gsm.
• the second substrate is a batting comprising a blend of 30% 15 denier PET fibers, 35% 3 denier bicomponent fibers with PET core and PE sheath, and 35% 10 denier bicomponent fibers of the same core- sheath composition, and has a basis weight of about 100 grams per square meter (gsm).
• the substrates are sealed together in a windowpane design with a heat sealing die utilizing a pressure-platen heat sealing device such as a Sentinel Model 808 heat sealer available from Senco ⁇ , Hyannis, MA with sufficient temperature and pressure to cause the batting to melt and flow into the first layer and hence form an adequate seal, usually about 300 degrees Fahrenheit and 30 psi machine pressure sealing for 6-10 seconds is sufficient.
• the seal is continuous around the edges and has a single windowpane cross-member in each X- and Y-direction measuring about 2 mm width.
• the article is trimmed to about 1 1 inches by 8.5 inches, and 8 grams of skin cleansing and conditioning composition is slot coated onto the articles, 4 grams per side evenly distributed on the article surfaces using an X-Y table, which is a programmable controlled metering system comprising a heated reservoir maintained at about 70°C, a pump, an on-off valve, a slot head and a motorized X-Y coordinate control system for the coating head.
• the composition cools quickly on the surface of the articles.
• the articles are packaged until ready for use. Examples 150-152
• the cleansing components are applied to one side of a first substrate by brushing onto one side of the substrate until 10 grams of composition have been added to a 1 1 inch by 8.5 inch section.
• the substrate is a lofty, low density batting comprising a blend of 30% 15 denier PET fibers, 35% 3 denier bicomponent fibers with PET core and PE sheath, and 35% 10 denier bicomponent fibers of the same core-sheath composition, and has a basis weight of about 100 gsm.
• the first substrate is dried.
• a second substrate is laminated to the untreated side of the first substrate using an ultrasonic sealer which seals a dot pattern comprising a grid of 4 mm diameter sealing points spaced evenly across the web at 2 cm intervals.
• the second substrate is a spunlace blend of 70% rayon and 30% PET fibers, bonded with a styrene-butadiene adhesive, which is hydroapertured to form holes about 2 mm in diameter and having a basis weight of about 70 gsm.
• the skin conditioning composition of Example 19 is slot coated evenly onto entire surface of the second substrate at a rate of about 3 grams of composition per article, allowed to cool, and packaged until ready for use.
• the article confers sustained antiviral, antifungal and antibacterial activity against both gram negative and gram positive microorganisms, lathers well, and is relatively mild to the skin.
• Example 153 Prepare a representative skin cleansing and conditioning article in the following manner.
• Example 1 1 Four grams of the cleansing component of Example 1 1 is spread evenly by hand across a lofty batting.
• the batting is a 4 oz/sq yd polyester batting cut to a size of 130 mm by 175 mm, comprising polyester fibers of about 30 microns average diameter and is adhesive bonded, available for example as Mountain Mist Extra Heavy Batting #205 from Steams Textiles, Cincinnati, OH.
• a layer of fibrous nonwoven which is a hydroentangled blend of 55% cellulose and 45% polyester having a basis weight of about 65 gsm (available as Technicloth II from The Texwipe Company, Saddle River, NJ) is placed over the surfactant coated side of the batting.
• the layers are sealed together using interlocking sealing plates using an unheated plate having inverted thimble-shaped reservoirs spaced evenly in a hexagonal grid pattern.
• the thimble shaped reservoirs are about 1.2 cm diameter at the base and are spaced about 1.5 cm apart, center-to-center.
• the land area between the dimples on the unheated plate is convex upwards by several mm, forming an interconnected ridge.
• the heated plate has an external trough which fits precisely onto the ridge of the unheated plate.
• the heated plate contacts the cellulose/polyester substrate and a heat seal is effected using a pressure-platen heat sealing device such as a Sentinel Model 808 heat sealer available from Senco ⁇ , Hyannis, MA.
• the resulting unfinished article has topographical features on both sides, assisting lather generation and also making it easy to grip and slide across the skin surface during use.
• the article is cut into a rectangle about 120 mm by 160 mm.
• a skin conditioning inverse emulsion paste is prepared for use with the article, as follows:
• the lipid soluble ingredients are heated to 70°C while stirring. Glycerin is slowly added with vigorous stirring. The composition is homogenized. Three grams of the skin conditioning inverse emulsion paste is pipetted hot into the depressed zones on the cellulose/polyester side of the article. The composition quickly cools to a semi-solid paste. The article is packaged until ready for use.
• the conditioning composition is applied to one side of a first substrate by extruding it through a coating head continuously in four strips, each 5 mm wide, separated by a distance of 20 mm, 40 mm, and 20 mm respectively, measuring widthwise across the web, making a pair of parallel lines on each side of the web.
• the composition is extruded at a rate to yield 3 grams of composition per finished article.
• the substrate is a spunlace blend of 70% rayon and 30% PET fibers, bonded with a styrene-butadiene adhesive, which is hydroapertured to form holes about 2 mm in diameter and having a basis weight of about 70 gsm.
• a second web which is an airlaid, lofty, low density batting is continuously fed over the first substrate placing it in contact with the first substrate on the side containing no skin conditioning composition.
• the batting comprises a blend of 30% 15 denier PET fibers, 35% 3 denier bicomponent fibers with PET core and PE sheath, and 35% 10 denier bicomponent fibers of the same core-sheath composition, and has a basis weight of about 100 grams per square meter (gsm).
• the webs are continuously fed to an ultrasonic sealer which seals a dot pattern comprising a grid of 4 mm diameter sealing points spaced evenly across the web.
• the web is cut into individual articles measuring about 120 mm x 160 mm rectangles with rounded co ers, which has a total of about 51 sealing points per article. Examples 159-163
• a second web which is an airlaid, lofty, low density batting is continuously fed over the first substrate placing it in contact with the first substrate on the side containing no skin conditioning composition.
• the batting comprises a blend of 10% 15 denier PET fibers, 50% 3 denier bicomponent fibers with PET core and PE sheath, and 40% 10 denier bicomponent fibers of the same core-sheath composition, and has a basis weight of about 80 grams per square meter (gsm).
• the webs are continuously fed to an ultrasonic sealer which seals a dot pattern comprising a grid of 4 mm diameter sealing points spaced evenly across the web.
• Example 164 Prepare a representative skin cleansing article in the following manner.
• the cleansing component of Example 11 is applied to one side of a first substrate by extruding it through a coating head continuously in four lines separated by a distance of 20 mm, 40 mm, and 20 mm respectively, measuring widthwise across the web, making a pair of parallel lines on each side of the web.
• the cleansing component is extruded at a rate to yield 0.40 grams of cleansing component per finished article.
• the substrate is a spunlace blend of 70% rayon and 30% PET fibers, bonded with a styrene- butadiene adhesive, which is hydroapertured to form holes about 2 mm in diameter and having a basis weight of about 70 gsm.
• a second substrate web which is an airlaid, low density batting is continuously fed over the first substrate placing it in contact with the surfactant layer.
• the batting comprises a blend of 10% 15 denier PET fibers, 50% 3 denier bicomponent fibers with PET core and PE sheath, and 40% 10 denier bicomponent fibers of the same core-sheath composition, and has a basis weight of about 80 grams per square meter (gsm).
• a third substrate web which is the same as the second substrate web is continuously fed over the second substrate web placing it in contact with the second substrate.
• the webs are continuously fed to an ultrasonic sealer which seals a dot pattern comprising a grid of 4 mm diameter sealing points spaced evenly across the web.
• the web is cut into individual articles measuring about 120 mm x 90 mm rectangles with rounded comers.
• Example 165-169 Prepare representative skin cleansing and conditioning articles utilizing the skin conditioning compositions of Examples 19, 28, 34, 55, and 69.
• the cleansing component of Example 1 1 is applied to one side of a first substrate by extruding it through a coating head continuously in four lines separated by a distance of 20 mm, 40 mm, and 20 mm respectively, measuring widthwise across the web, making a pair of parallel lines on each side of the web.
• the cleansing component is extruded at a rate to yield 0.52 grams of cleansing component per finished article.
• the substrate is a spunlace blend of 70% rayon and 30% PET fibers, bonded with a styrene- butadiene adhesive, which is hydroapertured to form holes about 2 mm in diameter and having a basis weight of about 70 gsm.
• a second substrate web which is an airlaid, lofty, low density batting is continuously fed over the first substrate placing it in contact with the surfactant layer.
• the batting comprises a blend of 10% 15 denier PET fibers, 50% 3 denier bicomponent fibers with PET core and PE sheath, and 40% 10 denier bicomponent fibers of the same core-sheath composition, and has a basis weight of about 80 grams per square meter (gsm).
• a third substrate web which is the same as the second substrate web is continuously fed over the second substrate web placing it in contact with the second substrate.
• the webs are continuously fed to an ultrasonic sealer which seals a dot pattern comprising a grid of 4 mm diameter sealing points spaced evenly across the web.
• Skin conditioning composition is slot coated from a hot reservoir pumped through a slot dye onto both sides of the substrate web at a rate equal to 1.25 grams of skin conditioning composition per finished article (about 55 gsm add-on per side), and passed across a cooling fan so the composition cools quickly on the article outer surfaces.
• the web is cut into individual articles measuring about 120 mm x 90 mm rectangles with rounded comers.
• a skin cleansing article is prepared.
• the cleansing component of Example 11 is applied to one side of a first substrate by extruding it through a coating head continuously in four lines separated by a distance of 20 mm, 40 mm, and 20 mm respectively, measuring widthwise across the web, making a pair of parallel lines on each side of the web.
• the cleansing component is extruded at a rate to yield 4.4 grams of cleansing component per finished article.
• the substrate is a spunlace blend of 70% rayon and 30% PET fibers, bonded with a styrene-butadiene adhesive, which is hydroapertured to form holes about 2 mm in diameter and having a basis weight of about 70 gsm.
• a second web which is an airlaid, lofty, low density batting is continuously fed over the first substrate placing it in contact with the surfactant-containing layer.
• the batting comprises a blend of 30% 15 denier PET fibers, 35% 3 denier bicomponent fibers with PET core and PE sheath, and 35% 10 denier bicomponent fibers of the same core-sheath composition, and has a basis weight of about 100 grams per square meter (gsm).
• the webs are continuously fed to an ultrasonic sealer which seals a dot pattern comprising a grid of 4 mm diameter sealing points spaced evenly across the web.
• the web is cut into individual articles measuring about 120 mm x 480 mm rectangles with rounded comers.
• a second web which is an airlaid, lofty, low density batting is continuously fed over the first substrate placing it in contact with the first substrate on the side containing no skin conditioning composition.
• the batting comprises a blend of 30% 15 denier PET fibers, 35% 3 denier bicomponent fibers with PET core and PE sheath, and 35% 10 denier bicomponent fibers of the same core-sheath composition, and has a basis weight of about 100 grams per square meter (gsm).
• the webs are continuously fed to an ultrasonic sealer which seals a dot pattern comprising a grid of 4 mm diameter sealing points spaced evenly across the web.
• the web is cut into individual articles measuring about 120 mm x 160 mm rectangles with rounded comers, which has a total of about 51 sealing points per article.
• the skin cleansing article and the skin conditioning article are packaged together in a single package.
• a skin cleansing article is prepared.
• the cleansing component of Example 11 is applied to one side of a first substrate by extruding it through a coating head continuously in four lines separated by a distance of 20 mm, 40 mm, and 20 mm respectively, measuring widthwise across the web, making a pair of parallel lines on each side of the web.
• the cleansing component is extruded at a rate to yield 4.4 grams of cleansing component per finished article.
• the substrate is a spunlace blend of 70% rayon and 30% PET fibers, bonded with a styrene-butadiene adhesive, which is hydroapertured to form holes about 2 mm in diameter and having a basis weight of about 70 gsm.
• a second web which is an airlaid, lofty, low density batting is continuously fed over the first substrate placing it in contact with the surfactant layer.
• the batting comprises a blend of 30% 15 denier PET fibers, 35% 3 denier bicomponent fibers with PET core and PE sheath, and 35% 10 denier bicomponent fibers of the same core-sheath composition, and has a basis weight of about 100 grams per square meter (gsm).
• the webs are continuously fed to an ultrasonic sealer which seals a dot pattern comprising a grid of 4 mm diameter sealing points spaced evenly across the web.
• the web is cut into individual articles measuring about 120 mm x 480 mm rectangles with rounded comers.
• a skin conditioning article is prepared.
• a substrate is prepared which is a hydroentangled blend of fibers, having softer, finer denier fibers on one side and coarser fibers on the second side.
• the substrate is prepared by airlaying two webs comprising 10 denier polyester (PET) fibers, one web on top of the other, each having a basis weight of about 20 gsm.
• a web of polypropylene scrim having a diameter about 100 microns, laced at about 0.8 cm intervals is fed over the fibrous webs continuously as a third web.
• Fourth and fifth webs comprising 3 denier polyester fibers are airlaid at about 20 gsm each on top of the web.
• the webs are hydroentangled and to fix them into a single web unit, and dried on drying cans until moisture free and about 20% shrinkage due to relaxation of the scrim has occurred.
• a low T g (about 5°C) waterbome acrylic adhesive copolymer is added to the coarse fiber side of the web by kiss roll application at a rate of about 7 gsm wet add-on rate, and dried.
• the skin conditioning composition of Example 21 is continuously added to the web by slot coating the composition evenly across both sides of the web at a rate of about 25 gsm on each side.
• the substrate web is cut into individual articles measuring about 120 mm x 100 mm rectangles with rounded comers using a hot cutting roll causing the scrim fibers to shrink back slightly from the edge of the article as they are cut.
• Example 172 The skin cleansing article and the skin conditioning article are packaged together in a single package.
• Example 172 The skin cleansing article and the skin conditioning article are packaged together in a single package.
• a first substrate is prepared.
• the first substrate is an airlaid, lofty, low density batting comprising a blend of 30% 15 denier PET fibers, 35% 3 denier bicomponent fibers with PET core and PE sheath, and 35% 10 denier bicomponent fibers of the same core-sheath composition, and has a basis weight of about 100 grams per square meter (gsm).
• the batting is embossed with a shaped, heated embossing roll leaving an imprinted land area surrounding raised, button-like repeating units which are shaped like light bulbs and which forms a material representative of a loop portion of a hook-and-loop type fastening system.
• Such a material is available from PGI Nonwovens, Benson, NC.
• Example 11 4.4 grams of the skin cleansing composition of Example 11 is applied evenly to the back (flat side) of a 10 inch by 8.5 inch rectangle of the first substrate.
• a second substrate which is a lofty, high wet strength, adhesive bonded cellulose paper towel with a basis weight of about 53 gsm is cut to a size of about 10 inches by 8.5 inches.
• a useful towel is available from The Procter & Gamble Company and marketed as Bounty Rinse & Reuse ®, which retains its Z-direction height when wet, and which has a thickness of about 0.047 inches at 5 gsi, a Loft/Soft ratio of about 1.28, and a high Crepe Ratio by being wet-formed on a shaped belt.
• the substrates are heat bonded at the edge and 4 dots in the article center (5 mm diameter, spaced evenly from each other and the nearest edge) using a pressure-platen heat sealing device such as a Sentinel Model 808 heat sealer available from Senco ⁇ , Hyannis, MA.
• a pressure-platen heat sealing device such as a Sentinel Model 808 heat sealer available from Senco ⁇ , Hyannis, MA.
• the article is trimmed, and 3 grams of the skin conditioning composition of Example 18 is applied hot by brushing onto both sides of the article. The article is cooled and packaged until ready for use.

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• 2000
  • 2000-11-20 AU AU17846/01A patent/AU1784601A/en not_active Abandoned
  • 2000-11-20 KR KR1020027006332A patent/KR20020063893A/ko active IP Right Grant
  • 2000-11-20 BR BR0015653-1A patent/BR0015653A/pt not_active Application Discontinuation
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