WO2002042556A2 - Water-soluble lotions for paper products - Google Patents
Water-soluble lotions for paper products Download PDFInfo
- Publication number
- WO2002042556A2 WO2002042556A2 PCT/US2001/050043 US0150043W WO0242556A2 WO 2002042556 A2 WO2002042556 A2 WO 2002042556A2 US 0150043 W US0150043 W US 0150043W WO 0242556 A2 WO0242556 A2 WO 0242556A2
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- Prior art keywords
- weight
- lotion composition
- paper product
- water
- lotion
- Prior art date
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Classifications
-
- 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
- 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
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/34—Alcohols
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/37—Esters of carboxylic acids
- A61K8/375—Esters of carboxylic acids the alcohol moiety containing more than one hydroxy group
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
- A61K8/41—Amines
- A61K8/416—Quaternary ammonium compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/86—Polyethers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
- A61K8/925—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of animal origin
-
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/22—Agents rendering paper porous, absorbent or bulky
Definitions
- Absorbent paper products such as hand towels are commonly used to absorb fluids applied to the skin of a user during hand washing.
- the paper products are designed to absorb fluids from the skin and leave the skin dry.
- the soap ingredients often used to cleanse a person's hands or skin can remove oils, lipids, and natural skin conditioners and moisturizers from the stratum corneum of the person, leaving the skin excessively dry and subject to various skin problems, such as erythema, scales, flakes, and fissures.
- many people commonly wash their hands in environments susceptible to various diseases caused by the spread or growth of microbes, such as bacteria and viruses.
- the present invention is directed to a paper product that can dry and condition the skin of a user.
- a water-soluble lotion composition is applied to the paper product.
- the lotion composition contains water in an amount up to about 90% by weight of the lotion composition, a water- soluble skin conditioning component in an amount up to about 75% by weight of the lotion composition and a viscosity modifier component in an amount up to about 10% by weight of the lotion composition.
- the add-on level of the lotion composition is between about 1% to about 25% by weight of the paper product.
- the lotion composition applied to the paper product includes water in an amount between about 10% to about 30% by weight of the lotion composition.
- the lotion composition also contains a water-soluble skin conditioning component in an amount between about 10% to about 40% by weight of the lotion composition.
- the water-soluble skin conditioning component can include, glycerin, propylene glycol, sorbitol, or combinations thereof.
- a viscosity modifier component can also be utilized in an amount between about 2% to about 5% by weight of the lotion composition.
- the viscosity modifier component can include a surfactant that increases the viscosity of the lotion, such as talloweth-60-myristyl glycol.
- a process for producing a paper product for drying and conditioning the skin of a user includes forming a fibrous web, through-drying the web to remove water therefrom, and thereafter treating the dried web with a lotion composition such that the lotion has an add-on level of between about 1 % to about 10% by weight of said paper product.
- the lotion composition can be printed onto the paper web. In other embodiments, the lotion composition can also be sprayed onto the paper web.
- any given range presented herein is intended to include any and all lesser included ranges.
- a range of from 45-90 would also include 50-90; 45-80; 46-89 and the like.
- the range of 95% to 99.999% also includes, for example, the ranges of 96% to 99.1%, 96.3% to 99.7%, and 99.91 to 99.999%.
- Other features and aspects of the present invention are discussed in greater detail below.
- the present invention is directed to a paper product that contains a lotion useful for treating a person's skin.
- the lotion is a water-soluble lotion that contains water, a water-soluble skin conditioning component, a viscosity modifier component, an optional liquid-coupling component, and various other ingredients, such as anti-microbial agents, preservatives, etc.
- the particular selection and amount of ingredients utilized in the lotion of the present invention can provide a synergistic effect when applied to a paper product.
- the lotion of the present invention can be applied at relatively low addon levels to a paper product such that the resulting paper product can remain absorbent.
- the paper product of the present invention can dry a person's skin after washing, while simultaneously imparting certain benefits to the skin, such as inhibiting microbial growth, skin disease, skin dryness, etc.
- Paper products made in accordance with the present invention can include various types of products, such as towels, wipes, napkins, facial and bath tissue, and the like.
- the paper product can generally be produced from paper webs having one or multiple layers.
- the paper product can contain one or multiple plies where each ply can contain one or more paper layers.
- the basis weight of the paper products can vary dependent on the particular application. In some embodiments, for example, the paper product can have a, basis weight from about 1 to about 50 pounds per 2,880 square feet (i.e., ream), and in some embodiments, between about 5 to about 45 pounds per square ream.
- paper towels can sometimes be formed to have a basis weight of from about 10 to about 45 pounds per ream, and in some embodiments, between about 20 to about 30 pounds per ream.
- the paper product of the present invention is applied with a lotion that is water-soluble.
- water-soluble refers to a compound that has a hydrophilic-lipophilic balance (HLB) number of 7 or greater.
- HLB index is well known in the art and is a scale that measures the balance between the hydrophilic and lipophilic solution tendencies of a compound.
- the HLB scale ranges from 1 to approximately 100, with the lower numbers representing highly lipophilic tendencies and the higher numbers representing highly hydrophilic tendencies.
- the amount of water utilized in the present invention can vary depending on the desired characteristics of the paper product.
- water can be utilized in an amount up to about 90% by weight of the composition, in some embodiments, up to about 50% by weight of the composition, and in some embodiments, between about 10% to about 30% by weight of the composition.
- the water-soluble lotion composition can also contain a variety of other ingredients.
- the water-soluble lotion can contain a water-soluble skin conditioning component that includes one or more water-soluble skin conditioning agents.
- a water-soluble skin conditioning component can provide a number of benefits to the lotion of the present invention. For example, a lotion applied to a paper product can be transferred to a person's hand after use.
- the water-soluble skin conditioning component of the lotion can enhance the retention of moisture on the person's skin and inhibit transepidermal water loss, even after the person uses the paper product. By retaining water, a user's skin will be less prone to becoming excessively dry, as well as being inhibited from developing certain skin problems, such as erythema.
- the water-soluble skin conditioning component can also contain ingredients that can help to maintain the soft, smooth, and pliable appearance and feel of the skin.
- the amount of the water-soluble skin conditioning component can generally vary.
- the amount of the water-soluble skin conditioning component can be up to about
- the lotion composition in some embodiments up to about 40% by weight of the composition, and in some embodiments, between about 10% to about 40% by weight of the composition.
- water-soluble skin conditioning agents may be suitable for use in the present invention.
- suitable water-soluble skin conditioning agents include, but are not limited to, allantoin; polydimethyl siloxanes, such as polysiloxane ethers and organo-betaines and dimethicone copolyol benzoate; amino acids, such as collagen, potassium lauryl wheat, silk, cocodimonium hydroxypropyl silk, and keratin; monoethanol amines (MEA), such as acetamide and lactamide; quaternized materials, such as cetyl trimethyl ammonium chloride, stearyl dimethyl benzyl ammonium chloride, stearamidopropyl dimethyl myristyl acetate ammonium chloride, cationic cellulose, quatemium 75, canolamidopropyl ethyldimonium ethosulfate, linoleamidopropyl ethyldimoni
- PEG-6 caprylic/capric glycerides PEG-20 almond glycerides, PEG-60 almond glycerides, PEG-20 corn glycerides, PEG-40 castor oil, PEG- 80 castor oil, and PEG-80 glyceryl cocoate; ethoxylated and propoxylated glucose derivatives, such as Glucam E-10, Glucam E-20, Glucam P-10, polyethylene oxides, such as PEG-2000, PEG-9, PEG-
- the skin conditioning component can include a humectant (i.e., a compound that has an affinity for water).
- a humectant can generally provide a number of benefits to a lotion of the present invention.
- a humectant which has an affinity for water, can further enhance the retention of moisture on the person's skin and inhibit transepidermal water loss.
- humectants may be suitable for use in the present invention.
- suitable water-soluble humectants include, but are not limited to, glycerin; ethoxylated glycerins, such as POE-26 glycerine, POE-7 glycerin, sorbitol, 1 ,2,6- hexanetriol sorbitol, and hydroxypropyl sorbitol; phosphinic carboxylic acid (PCA) and salts thereof, such as sodium PCA; alpha hydroxy acids and salts thereof, such as lactic acid, sodium lactate, and glycolic acid; glucose derivatives, such as glucose glutamate; polyalkylene glycols and alkylene polyols and their derivatives, including propylene glycol, dipropylene glycol, polypropylene glycol, polyethylene glycol,
- PCA phosphinic carboxylic acid
- alpha hydroxy acids and salts thereof such as lactic acid, sodium lactate, and glyco
- glycerin may be particularly useful in moisturizing the skin of a user and protecting it from excessive drying and other problems with the skin.
- a water-soluble skin-conditioning component containing glycerin, propylene glycol, and/or sorbitol may be particularly useful in moisturizing the skin of a user and protecting it from excessive drying and other problems with the skin.
- the amount of glycerin can be up to about 25% by weight of the lotion composition, in some embodiments up to about 15% by weight of the composition, and in some embodiments, between about 2% to about 15% by weight of the composition.
- the amount of propylene glycol can be up to about 30% by weight of the lotion, and in some embodiments, between about 5% to about 20% of the lotion.
- the amount of sorbitol can be up to about 30% by weight of the lotion, and in some embodiments, between about 5% to about 20% of the lotion.
- a viscosity modifier component that includes one or more viscosity modifiers may also be utilized in the lotion composition.
- viscosity modifiers can be used to increase the viscosity of (i.e., thicken) the water-soluble lotion such that it can be better retained on the surface of the paper product.
- the amount of the viscosity modifier component can be up to about 10% by weight of the lotion composition, in some embodiments up to about 5% by weight of the composition, and in some embodiments, between about 2% to about
- suitable viscosity modifiers can include, but are not limited to, cellulosic derivatives, polyalkylene glycols, polyvinyl alcohol, sodium polyacrylate and other water-soluble macromolecules, etc.
- the viscosity modifier can also clean and/or moisturize the skin of a user.
- some viscosity modifiers that may also condition the skin of a user can include certain surfactants, such as, but not limited to, PEG- 80 glyceryl cocoate, behentrimonium methosulfate and cetearyl alcohol, PEG-2000, sodium stearoyl lactylate, PEG-75 lanolin, and the like.
- alkyoxylated alcohol surfactants such as talloweth-60- myristyl glycol (sold under the name Elfacos® GT-282S by Akzo Nobel), can be particularly useful in thickening the water-soluble lotion and in cleaning and/or moisturizing the skin of a user.
- alkyoxylated alcohol surfactants such as talloweth-60- myristyl glycol (sold under the name Elfacos® GT-282S by Akzo Nobel)
- talloweth-60- myristyl glycol can be particularly useful in thickening the water-soluble lotion and in cleaning and/or moisturizing the skin of a user.
- Other suitable viscosity modifiers may also be described in U.S. Patent No. 6,025,431 to Cardinali. et al.. which is incorporated herein in its entirety by reference thereto for all purposes.
- an optional liquid-coupling component that includes one or more liquid-coupling agents can also be utilized.
- liquid-coupling agents can be used to couple the ingredients of the composition together to ensure that the lotion composition does not separate into more than one liquid phase. As a result, the ingredients of the lotion composition can be more uniformly applied to the skin of a user.
- a liquid-coupling surfactant can also aid in solubilizing certain ingredients, such as anti-microbial agents.
- the liquid-coupling agent(s) may or may not also act as a viscosity modifier and/or as a skin conditioning agent.
- the amount of the liquid-coupling component can generally vary.
- the amount of the liquid-coupling component can be up to about 60% by weight of the lotion composition, in some embodiments up to about 50% by weight of the composition, and in some embodiments, between about 20% to about 40% by weight of the composition.
- liquid-coupling agents may be utilized in the present invention.
- various surfactants may be utilized within the liquid-coupling component.
- some nonionic surfactants include, but are not limited to, an alkoxylated fatty acid (e.g., DI600® from High Point Chemical Corp), alkyl phenyl ethers of polyethylene glycol (e.g., Union Carbide's Tergitol® series of surfactants), alkylphenolethylene oxide condensation products (e.g., Rhone Poulenc, Incorporated's Igepal® series of surfactants), and aryl alkyl polyether alcohols (e.g., Rohm and
- Haas's Triton® series of surfactants such as Triton® X-100), Calgon Corporation's ORLENE® series surfactants, such as ORLENE® 1070, 1071 , 1084 and 1060; alkyl polyglycosides (APG) derived as a condensation product of dextrose (D-glucose) and a straight or branched chain alcohol (e.g., Horizon Chemical's APG Series, such as
- APG-300, APG-350, and APG-500 are examples of the following components.
- anionic surfactant may also be used.
- anionic surfactant that can be utilized is a water- soluble sulfated and sulfonated anionic alkali metal and alkaline earth metal detergent salts containing a hydrophobic higher alkyl moiety
- anionic surfactants include, but are not limited to, the alkali metal salts of alkyl naphthalene sulfonic acids (methyl naphthalene sodium sulfonate, Petro AA, Petrochemical Corporation); sulfated higher fatty acid monoglycerides, such as the sodium salt of the sulfated monoglyceride of cocoa oil fatty acids and the potassium salt of the sulfated monoglyceride of tallow fatty acids; alkali metal salts of sulfated fatty alcohols containing from about 10 to 18 carbon atoms (e.g., sodium lauryl sulfate and sodium stearyl sulfate); sodium C 14 -C 16 alphaolefin sulfonates such as the Bio-Terge series (Stepan Chemical Co.); alkali metal salts of sulfated ethyleneoxy fatty alcohols (the sodium or ammonium sulfates of the condensation products of about 3 mo
- a further useful class of anionic surfactants includes the 8-(4-n- alkyl-2-cyclohexenyl)-octanoic acids, wherein the cyclohexenyl ring is substituted with an additional carboxylic acid group.
- These compounds or their potassium salts are commercially-available from Westvaco Corporation as Diacid 1550 or H-240.
- these anionic surfactants can be employed in the form of their alkali metal salts, ammonium or alkaline earth metal salts.
- Another example of a suitable anionic surfactant includes an amino-acid based surfactant, such as acylglutamate, which is marketed under the name "Amisoft" by Ajinomoto Corp., Tokyo, Japan.
- anionic surfactants include, but are not limited to, ammonium or sodium salts of a sulfated ethoxylate derived from a 12 to 14 carbon linear primary alcohol such as Vista's
- Alfonic® 1412A or 1412S Alfonic® 1412A or 1412S; and, sulfonated naphthalene formaldehyde condensates, (e.g., Rohm and Haas's Tamol® SN).
- a cationic surfactant can also be used.
- Suitable cationic surfactants can include, but are not limited to, CIBA-GEIGY's Amasoft® 16-7 and Sapamine® P; Quaker Chemicals'
- an antimicrobial agent i.e., an additive that is capable of killing viruses, bacteria, fungi, and other microbes
- an antimicrobial agent utilized in the present invention is biocompatible.
- the antimicrobial agent can also be water-soluble or capable of being solubilized by an ingredient of the lotion composition.
- some suitable antimicrobial agents that can be used in the present invention include, but are not limited to, chlorohexidine gluconate; parachlorometaxylenol (PCMX); benzylthoneium chloride; chitosan, such as chitosan pyrrolidone carboxylate; 2,4,4'-trichloro-2'- hydroxydiphenyl ether (triclosan), etc.
- PCMX parachlorometaxylenol
- benzylthoneium chloride chitosan, such as chitosan pyrrolidone carboxylate; 2,4,4'-trichloro-2'- hydroxydiphenyl ether (triclosan), etc.
- Other suitable antimicrobial agents are described in U.S. Patent Nos. 5,871 ,763 to Luu. et al..
- the amount of an antimicrobial agent(s) utilized in the lotion composition of the present invention can generally vary.
- the amount of the antimicrobial agent(s) can be up to about 20% by weight of the composition, in some embodiments up to about 10% by weight of the composition, and in some embodiments, between about 0.01% to about 5% by weight of the composition.
- the lotion can also contain one or more preservatives.
- the preservative(s) can inhibit the growth of certain microbes on the paper product before and/or after use. Moreover, when the lotion composition is transferred to the skin of a user, the preservative(s) can further inhibit the growth of microbes thereon.
- the amount of the preservative(s) utilized in the lotion composition of the present invention can generally vary. For example, in some embodiments, the amount of the preservative(s) can be up to about 5% by weight of the composition, in some embodiments up to about 3% by weight of the composition, and in some embodiments, between about 0.1% to about 2% by weight of the composition.
- Suitable preservatives include, but are not limited to, Mackstat H 66 (available from Mclntyre Group, Chicago, IL), DMDM hydantoin (e.g., Glydant PlusTM, Lonza, Inc., Fair Lawn, NJ), iodopropynyl butylcarbonate, Kathon (Rohm and Hass, Philadelphia, PA), methylparaben, propylparaben, 2- bromo-2-nitropropane-1 ,3-diol, benzoic acid, amidazolidinyl urea, diazolidinyl urea, and the like.
- Mackstat H 66 available from Mclntyre Group, Chicago, IL
- DMDM hydantoin e.g., Glydant PlusTM, Lonza, Inc., Fair Lawn, NJ
- iodopropynyl butylcarbonate e.g., Glydant PlusTM, Lonza,
- a preservative obtained under the name "Phenonip” from NIPA Hardwick can be utilized.
- Other suitable preservatives includes those sold by Sutton Labs, such as "Germall 115" (amidazolidinyl urea), “Germall II” (diazolidinyl urea), and “Germall Plus” (diazolidinyl urea and iodopropynyl butylcarbonate).
- ingredients can also be used.
- some classes of ingredients that can be used include, but are not limited to: antiacne actives (a drug product used to reduce the number of acne blemishes, acne pimples, blackheads, and whiteheads); antifoaming agents (reduce the tendency of foaming during processing); antiseptic actives; antioxidants (product integrity); anti-reddening agents, such as aloe extract; astringents-cosmetic (induce a tightening or tingling sensation on skin); astringents-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); colorants (impart color to the product); deodorants (reduce or eliminate unpleasant odor and protect against the formation of malodor on body surfaces); external analgesics (a topically applied drug that has a topical analgesic, an
- the viscosity modifier component may contain an ingredient, such as a surfactant, that thickens the solution and also acts as an ingredient of the liquid-coupling component and/or the water-soluble skin conditioning component to enhance the uniform application of the lotion and/or to moisturize the skin.
- an ingredient such as a surfactant
- the paper product may be formed from any papermaking process known in the art.
- a papermaking process of the present invention can utilize creping, embossing, wet-pressing, double creping, calendering, as well as other known steps in forming the paper web.
- One particular embodiment of the present invention utilizes a non-compressive drying technique, such as uncreped through-drying, to form the paper product.
- uncreped through-dried paper product may have good absorbency and wet-resiliency characteristics.
- uncreped through-drying generally involves the steps of: (1) forming a furnish of cellulosic fibers, water, and optionally, other additives, such as debonders and wet-strength agents; (2) depositing the furnish on a traveling foraminous belt, thereby forming a fibrous web on top of the traveling foraminous belt; (3) subjecting the fibrous web to through-drying to remove the water from the fibrous web; and (4) removing the dried fibrous web from the traveling foraminous belt.
- the lotion composition described above can then be applied.
- the lotion composition of the present invention can be applied to the paper product using a variety of methods.
- the composition can be applied to the surface of the paper product using rotogravure printing, either direct or indirect (offset).
- Rotogravure printing can sometimes offer better control of the distribution and transfer rate of the composition onto the paper product.
- other application methods such as flexographic printing, spraying (e.g., WEKO), hot melt adhesive spraying (e.g., Nordson), blade, saturant, coating, droplet throw, and foam applications, can be used.
- the lotion composition can be applied to one or both outer surfaces of the product after the product has been dried.
- the lotion composition can be applied after the plies are brought together or prior to bringing the plies together.
- the individual plies can be layered or blended (homogeneous), creped or uncreped, through-dried or wet-pressed.
- the paper product is an uncreped through-dried paper product.
- some ingredients of the lotion can be first entrapped within a porous delivery vehicle before being applied to the paper product such that the ingredients can be controllably released during drying and after the lotion is transferred to a user's skin.
- some delivery vehicles that can be used include, but are not limited to, microsponges, microcapsules, cyclodextrins and their derivatives, liposomes, polymeric sponges, and spray-dried starch.
- the lotion composition may contain microcapsules in an amount of up to about 25% by weight of the lotion, in some embodiments up to about 10% by weight of the lotion, and in some embodiments, between about 0.2% to about 5% by weight of the lotion.
- microsponges are described in U.S. Pat. No. 4,690,825 to Won, which is incorporated herein in its entirety by reference thereto for all purposes.
- Another delivery vehicle that may be useful is a sponge-like material, such as POLY-PORE® L200.
- a microcapsule that may be suitable for use in the present invention is POLY-PORE® E200 (Chemdal
- the add-on level of the lotion can generally vary depending on the desired effect of the composition on the product attributes and the specific composition.
- the term "add-on level" refers to the weight of a paper product treated with the lotion composition subtracted by the weight of the product prior to treatment, wherein this calculated weight is divided by the weight of the treated paper product and then multiplied by 100.
- the add-on level of the composition can be from about 1 to about 25 weight percent, in some embodiments from about 1 to about 10 weight percent, in some embodiments from about 1 to about 6 weight percent, in some embodiments from about 1 to about 5 weight percent, and in some embodiments, from about 1 to about 3 weight percent based on the weight of the paper product.
- lotions for use on a paper product in accordance with the present invention were demonstrated.
- four lotions labeled A, B, C, and D were formed having the following characteristics:
- the liquid ingredients were first mixed together. Once mixed, the liquid mixture was then heated to 70°C and stirred while the remaining solid ingredients were added. Stirring was continued until all of the ingredients were dissolved. Thereafter, the lotion was allowed to cool to room temperature while being stirred. The resulting lotion was then applied to an uncreped through-dried hand towel using a liquid dropping device until the resulting add-on level was 7% by weight of the hand towel.
- the towel was formed from recycled fibers in an amount of 50% by weight of the web and from Pictou northern softwood fibers in an amount of 50% by weight of the web.
- the Pictou fibers were refined for 8 minutes using conventional refining techniques.
- the furnishes were then supplied to a machine chest and blended.
- a Kymene® 557H wet strength agent was also added to the machine chest in an amount of 20 pounds per ton.
- a Witco C-6001 imidazoline- based softener was applied to the machine chest thereafter in an amount of 1.5 pounds per ton.
- the fibrous furnish was then formed into a paper web and dried using a through-air dryer.
- the resulting hand towel had a basis weight of 25 pounds per ream.
- a lotion was first formed having the following composition:
- the lotion composition was formed by first providing purified water at a temperature between 170°F to 180°F. Thereafter, each of the ingredients was sequentially applied (as listed in descending order in Table 1) to the water and mixed until the lotion composition was achieved. Thereafter, the resulting lotion was printed onto an uncreped through-dried hand towel such that the resulting add-on level was 4% by weight of the hand towel.
- the towel was formed as described in Example 1.
- a lotion was first formed having the following composition: Table 3: Components of the Lotion Composition
- the lotion composition was formed by first providing purified water at a temperature between 170°F to 180°F. Thereafter, each of the ingredients was sequentially applied (as listed in descending order in Table 2) to the water and mixed until the lotion composition was achieved. Thereafter, the resulting lotion was printed onto an uncreped through-dried hand towel such that the resulting add-on level was 4% by weight of the hand towel.
- the towel was formed as described in Example 1.
- a lotion was first formed having the following composition: Table 4: Components of the Lotion Composition
- the lotion composition was formed by first providing purified water at a temperature between 170°F to 180°F. Thereafter, each of the ingredients was sequentially applied (as listed in descending order in Table 3) to the water and mixed until the lotion composition was achieved. Thereafter, the resulting lotion was printed onto an uncreped through-dried hand towel such that the resulting add-on level was 4% by weight of the hand towel.
- the towel was formed as described in Example 1.
- the properties of the hand towel of the present invention were compared to an untreated hand towel using a panel of health care professionals according to the following procedure where the code 435 represents the untreated sample and the code 258 represents the treated sample. Procedure:
- Table 5 reflects the percent of those tested who only used the corresponding number of towels to dry their hands after the first and sixth washes for the untreated sample.
- Table 5 Towel Usage (untreated sample)
- Table 6 reflects the percent of those tested who only used the corresponding number of towels to dry their hands after the first and sixth washes for the treated sample.
- the addition of the lotion composition onto a hand towel did not substantially affect the ability of the towel to dry a person's hands.
- the percentage of the subjects that needed four towels to dry their hands for the sixth wash actually decreased from 4.0% to 3.0%.
- a lotion was first formed having the following composition:
- the lotion composition was formed by first providing purified water at a temperature between 170°F to 180°F. Thereafter, each of the ingredients was sequentially applied (as listed in descending order in Table 8) to the water and mixed until the lotion composition was achieved. Thereafter, the resulting lotion was printed onto an uncreped through-dried hand towel such that the resulting add-on level was 4% by weight of the hand towel.
- the towel was formed as described in Example 1.
- the properties of the hand towel of the present invention were compared to an untreated hand towel the following procedure. Initially, 39 health care professionals washed their hands one time with "Bacti-Stat" Soap and made an initial hand condition rating. Thereafter, the subjects then washed their hands six additional times and a technician dried one hand with the treated towel and the other hand with an untreated towel. The subjects were then asked to compare the overall hand feel of each towel by answering a survey, such as set forth above in the first survey form of Q2 in Example 3.
- a paper product of the present invention can provide numerous benefits to a user. It has been discovered that the particular selection and amount of ingredients utilized in the lotion of the present invention can provide a synergistic effect when applied to a paper product. For instance, the lotion applied to the paper product can help moisturize the skin of a user during use, as well as remaining on a user's hands for continued moisturizing affects. In some cases, the lotion can enhance the ability of a user's skin to retain water even after using the paper product. By retaining water, a user's skin can be prevented from becoming excessively dry, as well as being inhibited from developing certain skin problems, such as erythema.
- the lotion can help to maintain the soft, smooth, and pliable appearance of the skin by its ability to remain on the skin surface or in the stratum corneum to act as a lubricant, to reduce flaking, and to improve the skin's appearance.
- the lotion can even help disinfect the skin of a user to inhibit the growth and/or spreading of various microbes.
- a paper product formed therewith can also retain the ability to dry a person's skin.
- a person can initially wash his/her hands using conventional soap. Thereafter, the person can utilize a paper product of the present invention for drying the wetted skin.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002239687A AU2002239687A1 (en) | 2000-11-21 | 2001-11-12 | Water-soluble lotions for paper products |
DE60129729T DE60129729T2 (en) | 2000-11-21 | 2001-11-12 | WATER-SOLUBLE LOTIONS FOR PAPER PRODUCTS |
EP01987480A EP1335702B1 (en) | 2000-11-21 | 2001-11-12 | Water-soluble lotions for paper products |
MXPA03004416A MXPA03004416A (en) | 2000-11-21 | 2001-11-12 | Water-soluble lotions for paper products. |
CA2427277A CA2427277C (en) | 2000-11-21 | 2001-11-12 | Water-soluble lotions for paper products |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/718,071 | 2000-11-21 | ||
US09/718,071 US7195771B1 (en) | 2000-11-21 | 2000-11-21 | Water-soluble lotions for paper products |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002042556A2 true WO2002042556A2 (en) | 2002-05-30 |
WO2002042556A3 WO2002042556A3 (en) | 2003-03-13 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2001/050043 WO2002042556A2 (en) | 2000-11-21 | 2001-11-12 | Water-soluble lotions for paper products |
Country Status (7)
Country | Link |
---|---|
US (1) | US7195771B1 (en) |
EP (1) | EP1335702B1 (en) |
AU (1) | AU2002239687A1 (en) |
CA (1) | CA2427277C (en) |
DE (1) | DE60129729T2 (en) |
MX (1) | MXPA03004416A (en) |
WO (1) | WO2002042556A2 (en) |
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US8551518B2 (en) | 2006-06-12 | 2013-10-08 | The Procter & Gamble Company | Lotioned wipe product to reduce adhesion of soils or exudates to the skin |
US9119779B2 (en) | 2006-06-12 | 2015-09-01 | The Procter & Gamble Company | Lotioned wipe product comprising an anti-stick agent and a performance enhancing agent |
EP3278695A4 (en) * | 2015-03-31 | 2018-08-22 | Daio Paper Corporation | Tissue paper |
Also Published As
Publication number | Publication date |
---|---|
US7195771B1 (en) | 2007-03-27 |
WO2002042556A3 (en) | 2003-03-13 |
EP1335702A2 (en) | 2003-08-20 |
DE60129729D1 (en) | 2007-09-13 |
CA2427277A1 (en) | 2002-05-30 |
EP1335702B1 (en) | 2007-08-01 |
CA2427277C (en) | 2010-07-27 |
AU2002239687A1 (en) | 2002-06-03 |
DE60129729T2 (en) | 2007-12-06 |
MXPA03004416A (en) | 2003-09-04 |
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