MXPA06006313A - Massaging toilet bar with disintegrable agglomerates - Google Patents

Massaging toilet bar with disintegrable agglomerates

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Publication number
MXPA06006313A
MXPA06006313A MXPA/A/2006/006313A MXPA06006313A MXPA06006313A MX PA06006313 A MXPA06006313 A MX PA06006313A MX PA06006313 A MXPA06006313 A MX PA06006313A MX PA06006313 A MXPA06006313 A MX PA06006313A
Authority
MX
Mexico
Prior art keywords
bar
agglomerates
weight
skin
particles
Prior art date
Application number
MXPA/A/2006/006313A
Other languages
Spanish (es)
Inventor
Husain Abbas Syed
Luigi Spadini Alessandro
Iva Katz Melissa
Hillman Evan
Original Assignee
Unilever Home & Personal Care Usa Division Of Conopco Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unilever Home & Personal Care Usa Division Of Conopco Inc filed Critical Unilever Home & Personal Care Usa Division Of Conopco Inc
Publication of MXPA06006313A publication Critical patent/MXPA06006313A/en

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Abstract

Massaging toilet bar compositions are described that contain disintegrable agglomerates that provide simultaneous exfoliation and massaging to the skin and hair. Agglomerates are made by treating them with hydrophilic liquids, hydrophobic liquids, or a combination thereof. This treatment makes the agglomerate softer but not so soft as to make it break apart during the manufacture of the bars.

Description

MASSAGE TOILET BAR WITH DISINTEGRABLE AGGLOMERATES The present invention relates to a toilet bar for massage with disintegrable agglomerates suitable for topical application for massaging and cleansing the human body, such as skin and hair. Exfoliating toilet bars are well known. However, most of them are very irritating to the skin due to the fact that they have high levels of hard or marginally effective exfoliants. Examples of such prior art toilet rods with exfoliating particles or beads, such as polyethylene beads, silica, walnut shells and apricot kernels, and the like, are described in, for example, US Pat. 6,376,441; US patent no. 6,342,470; US patent no. 6,384,000; and US patent no. 6,074,998. These exfoliating particles are usually very hard and impart an undesirable abrasive sensation. The agglomerates of the prior art of such particles are often also sharp and sharp. Surprisingly, it has been found that disintegrable agglomerates can be formulated in toilet bars, such as soap bars (including translucent glycerin type), warp bars (syndet / soap), syndet bars or melt-cast bars. Such agglomerates can be made and used as massaging components in such bars by pre-treating them with hydrophilic or hydrophobic liquids which are preferably anhydrous. These inventive massaging bars will provide the user with the benefits of a gentle massage and increased blood circulation, and reduction in muscle tension, which would thus improve the overall well-being of the users. Integral to the massage experience is the lubrication of the hydrophilic / hydrophobic liquid used to treat the inventive agglomerates. It is expected that additional deposition will occur on the skin of the hydrophilic / hydrophobic liquid from the treated agglomerate. Additionally, the treatment liquid assists in wetting and feeling the skin during the use of the inventive bar. Surprisingly, it was found that the pre-treatment allows the integration of relatively large particles that would otherwise be very hard. Such large but soft particles provide a unique sensation in the skin that can not be obtained with smaller and normally rougher particles. In one aspect of the invention is a massage bar for massage, including but not limited to: a. about 5% up to 80% by weight of one or more anionic surfactants; b. about 0.02% to 20% by weight of disintegrable agglomerates, the agglomerates include a plurality of particles, optionally containing a binder; and a treatment fluid covering at least a portion of an inner surface of the particles in the agglomerates, the fluid being selected from a hydrophilic compound, a hydrophobic compound or a mixture thereof; c. wherein the agglomerates have a fracture index of less than 1.0; and d. wherein the bar has a stiffness index of more than about 0.2 Mpa at 25 ° C. In another aspect of the invention a process for manufacturing a bar for massage is provided, including but not limited to the steps of, in a particular order: a. contacting the particle agglomerates with a treatment fluid under effective conditions so that the agglomerate reaches a fracture index of less than 1.0 to form a pre-treated agglomerate, the fluid being selected from a hydrophilic compound, a hydrophobic compound or a mixture thereof; b. mixing the pre-treated agglomerate with at least one component of a toilet bar base selected from a soap base, a syndet base, or a warming base, optionally containing a fragrance and other minor components to form a mixed mass; c. treat the mixed dough via an effective combination of grinding, refining and / or extrusion to form a refined dough; and d. processing the refined mass either by extrusion followed by stamping, cutting or a combination thereof; or emptying followed by hardening to form a bar for massage. In a further aspect of the present invention, there is provided a method for cleaning skin with a massage bar, including but not limited to the steps of: a. moisturize a bar for massage with water; The bar includes: 1. about 5% up to 80% by weight of one or more anionic surfactants; 2. about 0.02% to 20% by weight of water-disintegrable agglomerates, the agglomerates include a plurality of particles, optionally containing a lingant; and a treatment fluid that covers at least a portion of an inner surface of the particles in the agglomerates, the fluid being selected from a hydrophilic compound, a hydrophobic compound or a mixture thereof; 3. where the agglomerates have a lower fracture index than 1 .0; and 4. where the bar has a stiffness index of more than 0.2 Mpa at 25 ° C; and b. rub the wet bar on the skin with enough force to cause the agglomerates to disintegrate while cleaning and massaging the skin. In one aspect of the invention, a toilet bar for massage is provided, including but not limited to: a. about 5% up to 80% by weight of one or more anionic surfactants; b. about 0.02% to 20% by weight of disintegrable agglomerates, the agglomerates include a plurality of particles, optionally containing a lingant; and a treatment fluid that covers at least a portion of an interior surface of the particles in the agglomerates, the fluid being selected from a hydrophilic compound, a hydrophobic compound or a mixture thereof (preferably, the disintegrable agglomerates contain a minimum of about 0.05, 0.1, 0.2, 0.3, 0.5 and a maximum of about 1.1, 1.1, 1.5, 2, 3, 5, 6, 7, 10, 1, 15, or 20% by weight of the fluid of treatment based on the agglomerate, where the agglomerates have a fracture index of less than 1.0 (preferably 0.9, 0.8, 0.7, 0.6, 0.5 or less), and where the bar has an index of stiffness of more than 0.2 Mpa at 25 ° C. The hardness of the granules before and after wetting in the components of benefit is expressed as number of fracture index.The number of fracture index is defined as the proportion of the applied pressure (in grams) to break the pre-moistened granule as it is with the necessary pressure to break an untreated granule. The fracture index for the different types of granules should be less than 1.0. Ideally, it should be from 0.5-0.9. The fracture index number can be obtained with the fracture index method defined below. It was found that useful pre-treated agglomerates with a diameter of 0.3-1.0 mm had a fracture index of approximately 0.9, and pre-treated agglomerates with a diameter of 1.4-2.0 mm had a fracture index of approximately 0.7. Both hydrophilic and hydrophobic beads can be used to obtain the desired fracture index. Hydrophilic beads preferably require a treatment fluid or dispersion medium which is hydrophobic, and it will be noted that the polarity of the hydrophobic medium has a large effect on the number of fracture index. The desired fracture index number can be achieved by changing the polarity of the medium when selecting different liquids, or by mixing 2 or more liquids of different polarity and the like. Examples of such beads are unmodified clay agglomerates, starch derivatives and the like. The hydrophobic beads preferably require a dispersion medium that is hydrophilic, such as water, alcohols, polyols, PEGs, alkanolamines, such as TEA and the like. The agglomerates of these beads can also be hydrophobically modified. Such modifications can be made to clay, cellulose materials or other starch derivatives and the like. Additionally, mixtures of either of these two types of beads could be used to obtain a desired fracture index by mixing the appropriate level of hydrophilic and hydrophobic liquids with different polarities. A preferred embodiment of a method for wetting the agglomerates is as follows: 1. Combine the agglomerates and the treatment fluid. 2. Mix to ensure all agglomerates are soaked in fluid. 3. Let soak the agglomerates for a minimum of 20 minutes. 4. Once the agglomerates have been soaked, add them to a flake mixer with a soap base. 5. Add the fragrance and other ingredients to the mixer. 6. Send to the extruder to be exempted.
Advantageously, the disintegrable agglomerates are disintegrable in water or any other hydrophilic substance, with or without applied cutting force. Preferably, the average weight ratio of the particulate treatment fluid and optional binder in the agglomerates is in the range of about 1: 5 to about 5: 1.; more preferably 1: 4 to 1: 2. Preferably, the average diameter of the agglomerates is in the range of about 0.1 to 20.0 mm (preferably with a minimum diameter of 0.2, 0.3, 0.5, 0.7, 1.0 and 2.0 mm and a maximum diameter of approximately 5, 10. or 15 mm). The diameter is defined herein as the largest dimension of an irregularly shaped agglomerate or the diameter of a spherical agglomerate. Advantageously, the treatment fluid is in an effective viscosity range for the fluid to at least partially permeate the agglomerates and coat at least a portion of the interior surface of the particles in the agglomerates before the bar solidifies. Preferably, the fluid has a maximum viscosity of 1000 cps measured at a cutoff speed of 10"1s using a Brookfield RVF viscometer and RV5 spindle for 30 seconds taken at the agglomerate processing temperature that produces a viscosity within this range. More preferably, the fluid has a minimum viscosity of about 0.7, 1, 2, 4, 10 or 15 cps and a maximum viscosity of 100, 200, 300 or 500 cps at 25 ° C; or where the viscosity is measured at the processing temperature of the bar. Advantageously, the portion of the inner surface of the agglomerate coated by the treatment fluid is greater than about 1, 2, 5, 10, 11, 15, 20, 30, 40, 50, 60, 70, 80 or 90 percent of the total interior surface area available for the coating. Preferably, the treatment fluid is selected from polyhydric alcohols (such as glycerin, propylene glycol and the like), fatty acids (such as stearic acid, coconut fatty acid and the like); polyols (such as polyethylene glycol of from about 200 to 1,000,000 molecular weight and the like), tri- and diglyceride oils (such as plant derivatives, animal derivatives, or synthetic oils or mixtures and derivatives of the isms), petroleum oils (such as molten petrolatum or wax, mineral oil and the like); silicone oils, fluorinated oils, brominated oils, lower alkyl and C14 esters; lower alkyl and C14 alcohols; or mixtures and derivatives thereof. Advantageously, the treatment fluid has less than about 10% water (preferably less than about 5, 3 or 1, and more preferably is anhydrous). Advantageously, the plurality of particles is agglomerated before being formulated in the bar, agglomerated during bar formulation, or agglomerated using a combination thereof. Preferably, the plurality of particles is agglomerated before the bar formulation. Preferably, the plurality of particles is selected from hydrophilic clays (such as kaolin, bentonite, etc.); hydrophobically modified clays (such as kaolin, bentonite and the like); silica; zeolite; cellulose; starch (such as gelatinized starch, crosslinked starch, cyclodextrin starch, and the like); or mixtures and derivatives thereof. Most preferably, the plurality of particles is selected from bentonite clay agglomerates, as provided by Bentonit Uniao Nordeste S.A. (Brazil) or cyclodextrin starch grated by well-known starch processing technology and provided by companies such as Cerestar (Mechelen, Belgium). In a preferred embodiment of the massage bar, the anionic surfactant (s) includes a. about 0 to 30% by weight of one or more fatty acid soaps; and b. about 15% to 60% by weight of one or more non-soap anionic surfactants. Preferably, this bar contains about 0 to 20% by weight of one or more fatty acid soaps and about 20% to 55% by weight of one or more non-soap anionic surfactants. In another preferred embodiment of the massage bar, the anionic surfactant (s) include a. about 30% up to 80% by weight of one or more fatty acid soaps; and b. about 5% to 40% by weight of one or more non-soap anionic surfactants. Preferably, this bar contains about 40% to 70% by weight of one or more fatty acid soaps and about 75 to 30% by weight of one or more non-soap anionic surfactants. In another preferred embodiment of the massage bar, the anionic surfactant (s) include a. about 30% up to 80% by weight of one or more fatty acid soaps; and b. about 0 to 10% by weight of one or more non-soap anionic surfactants. Preferably, this bar contains approximately 50% up 80% by weight of one plus fatty acid soaps and about 0 to 7% of one or more non-soap anionic surfactants. The inventive massage bar provides effective exfoliation (as measured by the Exfoliation Test described below), while reducing the skin's abrasiveness (as measured by the Skin Abrasivity Test defined below), compared with the comparative exfoliation bars. Additionally, the inventive bar maintains or improves the smoothness of the skin and smoothness of the skin (as measured by the Skin Smoothness and Smoothness Tests defined below), as compared to comparative exfoliation bars with less exfoliation perception , as measured by the sensory exfoliation index method of the bar as described below, compared to the comparative bars. In another aspect of the invention, a process for manufacturing a bar for massage is provided, including but not limited to the steps of, in no particular order: a. contacting particle agglomerates (preferably having a diameter in the range of about 0.1-20.0 mm) with a treatment fluid under effective conditions (preferably for a time in the range of about 10 seconds to 24 hours, agitation in a circuit of recirculation and temperature in the range of approximately 20 ° C to 30 ° C) so that the agglomerate reaches a fracture index of less than 1.0 to form a pre-treated agglomerate, being selected from the fluid of a hydrophilic compound, a hydrophobic compound or a mixture of them; b. mixing the pre-treated agglomerate with at least one component of a toilet bar base selected from a soap base, a syndet base, or a warming base, optionally containing a fragrance and other minor components to form a mixed mass; c. treating the mixed dough via an effective combination of grinding, refining and / or extrusion to form a refined dough; and d. processing the refined mass by either extrusion followed by stamping, cutting or a combination thereof; or emptying followed by hardening to form a bar for massage. In another aspect of the present invention, there is provided a method for cleaning skin with a massage bar, including but not limited to the steps of: a. moisturize a bar for massage with water; The bar includes: 1. about 5% up to 80% by weight of one or more anionic surfactants; 2. about 0.02% to 20% by weight of water-disintegrable agglomerates, the agglomerates include a plurality of particles, optionally containing a binder; and a treatment fluid that covers at least a portion of an inner surface of the particles in the agglomerates, the fluid being selected from a hydrophilic compound, a hydrophobic compound or a mixture thereof; 3. where the agglomerates have a fracture index of less than 1.0; and 4. where the bar has a stiffness index of more than 0.2 Mpa a ° C; and b. rub the wet bar on the skin with enough force to cause the agglomerates to disintegrate while cleaning and massaging the skin. Surfactants are an essential component of the inventive toilet bar. They are compounds that have hydrophobic and hydrophilic portions that act to reduce the surface tension of the aqueous solutions in which they dissolve. Useful surfactants include anionic, nonionic, amphoteric and cationic surfactants, and mixtures thereof. The massage bar of the present invention may contain one or more non-soap anionic detergents (syndets), conveniently synthetic anionic surfactants. Preferably, the syndets have a zein value of 50 or less. The zein value can be measured using the test method described below. The anionic detergent active, which may be used, may be aliphatic sulfonates, such as primary alkane sulfonate (eg, C8-C22) primary alkane disulfonate (eg, C8-C22). C8-C22 alkene sulphonate, C8-C22 hydroxyalkane sulphonate or alkyl glyceryl ether sulfonate (AGS); or aromatic sulfonates, such as, alkyl benzene sulfonate.
The anionic surfactant can also be an alkyl sulfate (for example, C12-C18 alkyl sulfate) or alkyl ether sulfate (including alkyl glyceryl ether sulfates). Among the alkyl ether sulfates are those having the formula: RO (CH2CH2O) nSO3M wherein R is an alkyl or alkenyl having 8 to 18 carbons, preferably 12 to 18 carbons, n has an average value of more than 1.0, preferably greater than 3; and M is a solubilizing cation such as sodium, potassium, ammonium or substituted ammonium. Sodium ammonium lauryl ether sulfates are preferred. The anionic surfactants can also be alkyl sulfosuccinates (including mono- and dialkyl, for example, C6-C22 sulfosuccinates); alkyl and acyl taurates, alkyl and acyl sarcosinates, sulfoacetates, C8-C22 alkyl phosphates and phosphates, alkyl phosphate esters and esters of alkoxyl alkyl phosphate, acyl lactates, C8-C22 monoalkyl succinates and maleates, sulfoacetates, alkyl glucosides and acyl isethionates, and similar. The sulfosuccinates can be monoalkyl sulfosuccinates having the formula: R4O2CCH2CH (SO3M) CO2M; Y amide-MEA sulfosuccinates of the formula; R4CONHCH2CH2O2CCH2CH (S? 3M) CO2M wherein R 4 ranges from C 8 -C 22 alkyl and M is a solubilizing cation. Sarcosinates are usually indicated by the formula: R1CON (CH3) CH2CO2M, wherein R1 varies from C8-C20 alkyl and M is a solubilizing cation. Tauratos are usually identified by the formula: R2CONR3CH2CH2SO3M wherein R2 ranges from C8-C20 alkyl. R3 varies from C1-C4 alkyl and M is a solubilizing cation. The inventive massage bar preferably contains C8-C1 acyl isethionates. These esters are prepared by reaction between alkali metal isethionate with mixed aliphatic fatty acids having from 6 to 12 carbon atoms and an iodine value of less than 20. The acyl isethionate can be an alkoxylated isethionate, as described in Llardi et al. al., US patent no. 5,393,466, entitled "Fatty Acid Esters of Polyalkoxylated isethonic acid" (Esters of fatty acids of polyalkoxylated isethonic acid), issued February 28, 1995; incorporated herein by reference. This compound has the general formula: o x y • II i i R C-0-CH-CH2- (0CH-CH2) m-SO3M + wherein R is an alkyl group having 8 to 18 carbons, m is an integer from 1 to 4, X and Y are hydrogen or an alkyl group having 1 to 4 carbons and M + is a monovalent cation, such as, for example, sodium , potassium or ammonium. In another embodiment of the inventive toilet rod, there is less than 5% by weight of any of the following anionic surfactants: alkyl sulphates, alkyl sulfonates, alkyl benzene sulfonates, alkyl alkoxy sulphates, acyl taurides, acyl sulfates, and polyhydroxy acid amides fatty either individually or a mixture thereof. Preferably, there is less than 1%, and more preferably less than 0.1% by weight of these surfactants. The bar for inventive massage can contain soap. The term "Soap" is used herein in its popular sense, i.e., the alkali metal or alkanol ammonium salts of alkane- or alkene monocarboxylic acids. The cations of sodium, potassium, mono-, di- and tri-ethanol ammonium, or combinations thereof, are suitable for the purposes of this invention. In general, soaps of sodium, potassium, ammonium, mono-, di- and tri-ethanol of saturated C8-C14 alkyl chains and unsaturated fatty acids, preferably having C8-C22 alkyl chains, are soluble soaps. One or more amphoteric surfactants can be used in this invention. Such surfactants include at least one acid group. This may be a carboxylic acid or sulfonic acid group. They include quaternary nitrogen and therefore are quaternary amino acids. Generally they should include an alkyl or alkenyl group of 7 to 18 carbon atoms. They will usually comply with a global structure formula: O R2 R - [-C-NH (C? 2) n ~ J p.-N -X-Y I R3 wherein R1 is alkyl or alkenyl of 7 to 18 carbon atoms; R2 and R3 are each independently alkyl, hydroxyalkyl or carboxyalkyl of 1 to 3 carbon atoms; n is 2 to 4; m is 0 to 1; X is alkylene of 1 to 3 carbon atoms optionally substituted with hydroxyl; and Y is -CO2- or -SO3- Suitable amphoteric surfactants within the above general formula include simple betaines of formula: O R R - [-C- »H (CH2) n-] a-N '-X-Y R ~ and amido betaines of the formula: R2 I R1 - C0NH (Cf2) n-N + -CH2C? 2 ~ I R3 where n is 2 or 3. In both formulas R1, R2 and R3 are as previously defined. R1 can be in particular a mixture of C2 and C14 alkyl groups derived from coconut oil, so that at least half, preferably at least three quarters of the R1 groups have 10 to 14 carbon atoms. R2 and R3 are preferably methyl. A further possibility is that the amphoteric detergent is a sulfobetaine of formula: R2 1 + R -N - (CH2) 3S03 R R2 i R1 - CONH (CH2) m-W + - (CH2) 3S? 3 3 R where m is 2 or 3, or variants of these in which - (CH2) 3 SO3"is replaced by OH -CH2CHCH2SO3 In these formulas R1, R2 and R3 are as previously discussed. The amphoacetates and dianfoacetates are also intended to be coated in zwitterionic and / or amphoteric compounds, which may be used such as, for example, sodium lauroamphoacetate, sodium cocoamphoacetate and mixtures thereof, and the like. One or more non-ionic surfactants may also be used in the massage bar of the present invention. Nonionic surfactants that may be used include, in particular, the reaction products of compounds having a hydrophobic group and a reactive hydrogen atom, for example, aliphatic alcohols, acids, amides or alkylphenols with alkylene oxides, especially sodium oxide. ethylene either solid or with propylene oxide. Specific suitable nonionic detergent compounds are condensates of (C6-C22) alkyl phenols, ethylene oxide, the condensation products of linear or branched C8-C? 8 aliphatic alcohols, primary or secondary, with ethylene oxide, and products made by the condensation of ethylene oxide with the reaction products of propylene oxide and ethylenediamine. Other so-called non-ionic detergent compounds include long chain tertiary amine oxides, long chain tertiary phosphine oxides and dialkyl sulfoxide and the like. The nonionic surfactant may also be a sugar amide, such as a polysaccharide amide. Specifically, the surfactant may be one of the lactobionamides described in U.S. Pat. 5,389,279 for Au et al. Titled "Compositions Comprising Nonionic Glycolipid Surfactants" (Compositions comprising non-ionic surfactants of glycolipids), issued on February 14, 1995; which is incorporated herein by reference or may be one of the sugar amides described in the patent no. 5,009,814 for Kelkenberg, entitled "Use of N-Poly Hydroxyalkyl Fatty Acid Amides as Thickening Agents for Liquid Aqueous Surfactant Systems" (Use of N-polyhydroxyalkyl fatty acid amides as thickening agents for liquid aqueous surfactant systems), issued on April 23 of 1991; incorporated in the present application by reference. An optional component in compositions according to the invention is a cationic sensing agent or polymer in the skin, which may be a cationic skin conditioning agent, such as, for example, cationic celluloses. Cationic cellulose is available, for example, from Amerchol Corp. (Edison, NJ, US) in its polymer series Polymer JR (trademark) and LR (trademark), as hydroxyethyl cellulose salts reacted with epoxide substituted with trimethyl ammonium , referred to in the industry (CTFA) as Polyquaternium 10. Another type of cationic cellulose include the polymeric quaternary ammonium salts of hydroxyethyl cellulose reacted with epoxide substituted with lauryl dimethyl ammonium, referred to in the industry (CTFA) as Polyquaternium 24. These materials are available from Amerchol Corp. (Edison, NJ, US) under the tradename Polymer LM-200 and quaternary ammonium compounds such as alkyldimethylammonium halides. A particularly suitable type of cationic polysaccharide polymer that can be used is a cationic guar gum derivative, such as guar hydroxypropyltrimonium chloride (commercially available from Rhone-Poulenc in its trademark series JAGUAR). Examples are JAGUAR C13S, which has a low degree of substitution of the cationic groups and high viscosity, JAGUAR C15, having a moderate degree of substitution and a low viscosity, JAGUAR C17 (high degree of substitution, high viscosity), JAGUAR C16, which is a cationic derivative of hydroxypropylated guar containing a low level of substituent groups as well as cationic quaternary ammonium groups, and JAGUAR 162, which is a guar gum of high transparency, medium viscosity having a low degree of substitution. Particularly preferred cationic polymers are JAGUAR C13S, JAGUAR C15, JAGUAR C17, JAGUAR C16 and JAGUAR C162, especially Jaguar C13S. Other cationic skin feel agents known in the art can be used, so long as they are compatible with the inventive formulation. Other preferred cationic compounds that are useful in the present invention include amide quaternary ammonium compounds, such as quaternary ammonium lactate and propionate salts, and quaternary ammonium hydrolysates of silk or wheat protein and the like. Many of these compounds can be obtained as the amido functional amines Mackine ™, mackalene ™ functional amido tertiary amine salts and Macpro® cationic protein hydrolysates from Mclntyre Group LTd. (University Park, IL). In a preferred embodiment of the invention having a hydrolyzed protein conditioning agent, the average molecular weight of the hydrolyzed protein is preferably about 2500. Preferably 90% of the hydrolyzed protein is between a molecular weight of about 1500 to about 3500. In In a preferred embodiment, MACKPROMR WWP (ie, whey wheat amide dimethylamine hydrolyzed wheat protein) is added at a concentration of 0.1% (as is) in the bar. This results in a "solid" MACPRO R WWP of 0.035% in the final bar formula for this modality. One or more cationic surfactants can also be used in the bar for inventive massage. Examples of cationic detergents are quaternary ammonium compounds, such as alkyldimethylammonium halides. Other suitable surfactants, which may be used, are described in U.S. Pat. 3,723,325 for Parran Jr. Titled "Detergent Compositions Containing Particle Deposition Enhancing Agents" (Detergent Compositions Containing Particle Deposition Intensifying Agents), issued March 27, 1973; and "Surface Active Agents and Detergents", (Vol. I &II), by Scwartz, Perry & Berch, both also incorporated in the present application by reference. In addition, the inventive composition, especially the toilet bar of the invention may include 0 to 15% by weight of optional ingredients as follows: perfumes; sequestering agents, such as tetrasodium ethylenediaminetetraacetate (EDTA), EHDP or mixtures in an amount of 0.01% to 1%, preferably 0.01% to 0.05%; and dyeing, opacifying and sizing agents, such as zinc stearate, magnesium stearate, TiO2, EGMS (ethylene glycol monostearate) or Lytron 621 (styrene / acrylate copolymer) and the like; all of which are useful to intensify the appearance or cosmetic properties of the product. The compositions may further comprise preservatives, such as dimethyloldimethylhydantoin (Glydant XL1000), parabens, sorbic acid, etc. , and similar. The compositions may also comprise coconut acyl mono- or diethanolamides as suds reinforcers, and strongly ionizing salts, such as sodium chloride and sodium sulfate may also be used to take advantage. Antioxydants, such as, for example, butylated hydroxytoluene (BHT) and the like, can be advantageously used in amounts of about 0.01% or greater, if appropriate. In addition to agglomerates, humectants also expressed as either humectants or emollients, can be advantageously used in the present invention. Wetting agents, such as polyhydric alcohols, for example, glycerin and propylene glycol and the like; and polyols such as the polyethylene glycols listed below and the like. Humidifiers can be used at levels greater than 0.01, 0.05, 0.1, 0.2, 0.5, 0.9, 1.0, 1.1, 2.0, 3.0, 5, 9, 10, 11, 15 or 20% by weight.
Polyox WSR-205 PEG 14M, Polyox WSR-N-60K PEG 45M, or Polyox WSR-N-750 PEG 7M.
The emollients can be added to the inventive product separately from agglomerates, or at least a portion of the agglomerates can be used that has been enriched in emollients. These separate emollients which are distinct from the agglomerates may be composed of a single wetting agent component, or may be a mixture of two or more compounds, one or all of which may have a wetting appearance. In addition, the wetting agent by itself can act as a carrier for other components that one may wish to add to the bar for inventive massage. Hydrophobic emollients, hydrophilic emollients, or a mixture thereof can be used. Preferably, the hydrophobic emollients are used in excess of hydrophilic emollients in the cleansing composition or for the care of the inventive toilet skin. The hydrophobic emollients are preferably present in a concentration greater than about 0.01, 0.05, 0.1, 0.2, 0.5, 0.9, 1.0, 1.1, 2.0, 3.0, 5, 9, 10, 11, 15, 20, 25 or 30% by weight. The hydrophobic emollients added separately from the agglomerates may be present in the inventive product at levels greater than about 0.01, 0.05, 0.1, 0.2, 0.5, 0.9, 1.0, 1.1, 2.0, 3.0, 5, 9, 10 , 1 1, 15 or 20% by weight. The term "emollient" is defined as a substance, which softens or improves the elasticity, appearance and youth of the skin (stratum corneum) by increasing its water content, and keeps it soft by slowing down its water content. Useful emollients include the following: (a) silicone oils and modifications thereof, such as linear and cyclic polydimethylsiloxanes; amino, alkyl, alkylaryl and aryl silicone oils; (b) fats and oils including natural fats and oils, such as jojoba, soybean, sunflower, rice bran, avocado, almond, olive, sesame, persic, castor, coconut, mink oils; cocoa fat; beef fat, lardo; hardened oils obtained by hydrogenating the aforementioned oils; and synthetic mono, di and triglycerides, such as myristic acid glyceride and 2-ethylhexanoic acid glyceride; (c) waxes, such as carnauba, spermaceti, beeswax, lanolin and derivatives thereof; (d) hydrophobic and hydrophilic plant extracts; (e) hydrocarbons, such as liquid paraffin, petrolatum, microcrystalline wax, ceresin, squalene, pristan and mineral oil; (f) higher fatty acids, such as lauric, myristic, palmitic, stearic, behenic, oleic, linoleic, linolenic, lanolic, isostearic, arachidonic and polyunsaturated fatty acids (PUFA); (g) higher alcohols, such as lauryl, cetyl, stearyl, oleyl, behenyl, cholesterol and 2-hexydecanol; (h) esters such as cetyl octanoate, myristyl lactate, cetyl lactate, isopropyl myristate, myristyl myristate, isopropyl palmitate, isopropyl adipate, butyl stearate, decyl oleate, cholesterol isostearate, glycerol monostearate, glycerol distearate, glycerol tristearate, alkyl lactate, alkyl citrate and alkyl tartrate; (i) essential oils and extracts thereof, such as, mint, jasmine, camphor, white cedar, bitter orange peel, ryu, turpentine, cinnamon, bergamot, citrus unshiu, calamus, pine, lavender, laurel, clove, hiba , eucalyptus, lemon, chicken milk, thyme, mint, rose, sage, sesame, ginger, basil, juniper, lemon grass, rosemary, rosewood, avocado, grape, grape seed, myrrh, cucumber, watercress, calendula , elder flower, geranium, lime flower, amaranth, seaweed, ginko, ginseng, carrot, guarana, tea tree, jojoba, comfrey, oats, cocoa, neroli, vanilla, green tea, pennyroyal, aloe vera, menthol, cineole, eugenol, citral, citronella, borneol, linalool, geraniol, herb ass, camphor, thymol, espirantol, penene, limonene and terpenoid oils; and (j) mixtures of any of the above components and the like. Preferred emollient wetting agents are selected from fatty acids, triglyceride oils, mineral oils, petrolatum and mixtures thereof. Additional preferred emollients are fatty acids. Additional exfoliants other than agglomerates can be used. Such exfoliants used in the art include natural minerals, such as silica, talc, calcite, pumice, tricalcium phosphate; seeds, such as rice, apricot seeds, etc; ground husks, such as almond and walnut shells; oats; polymers, such as polyethylene and polypropylene beads, petals and flower leaves; beads of microcrystalline wax; jojoba ester beads, and the like. These exfoliants come in a variety of particle sizes and morphology ranging from micron size to a few millimeters. They also have a range of hardness. Some examples are given in table 1 below. Preferably, such additional scrubs are selected from milder varieties, such as those with a Mohs hardness of less than about 4, 3 or 2. In a preferred embodiment, no additional scrubs are used.
Table 1 Advantageously, the optional active agents other than humectants defined above can be added to the agglomerate in a safe and effective amount before or during the formulation of the inventive massage bar, in order to immobilize and / or stabilize such ingredients, with the to allow a controlled release and effective use of these ingredients and for the skin during the use of the product. These active ingredients can be advantageously selected from antimicrobial and antifungal active ingredients, vitamins, anti-acne active ingredients; active anti-wrinkle, anti-atrophy of the skin and skin repair; skin barrier repair assets; cosmetic non-spheroidal soothing actives; artificial bronzing agents and accelerators; skin lightening assets; active sun blockers; sebum stimulants; sebum inhibitors; anti-oxidants; protease inhibitors; skin firming agents; anti-itch ingredients; hair growth inhibitors; 5-alpha reductase inhibitors; inhibitors of descaling enzymes; anti-glycation agents; topical anesthetics, or mixtures thereof; and similar. These active agents can be selected from water soluble active agents, oil soluble active agents, pharmaceutically acceptable salts and mixtures thereof. Advantageously, the agents will be soluble or dispersal in the treatment fluid used to treat the agglomerate. The term "active agent", as used herein, means personal care assets, which can be used to deliver a benefit to the skin and / or hair, and which are generally not used to confer a conditioning benefit. , as conferred by humectants and emollients previously described herein. The term "safe and effective amount", as used herein, means an amount of active agent sufficiently high to modify the condition to be treated or to deliver the benefit for the desired skin care, but low enough to avoid effects. serious laterals. The term "benefit", as used herein, means the therapeutic, prophylactic and / or chronic benefits associated with treating a particular condition with one or more of the active agents described herein. What is a safe and effective amount of the active agent ingredient will vary with the specific active agent, the ability of the active to penetrate through the skin, the age, health condition and condition of the user's skin and other similar factors. Preferably, the massage bars of the present invention comprise from about 0.01% to about 50%, more preferably from about 0.05% to about 25%, even more preferably 0.1% to about 10%, and most preferably 0.1% to about 5%. % by weight of the active agent component. Anti-acne assets can be effective in treating acne vulgaris, a chronic disorder of pilosebaceous follicles. Non-limiting examples of useful anti-acne actives include keratolytics, such as salicylic acid (o-hydroxybenzoic acid), salicylic acid derivatives, such as 5-octanoyl salicylic acid and 4-methoxysalicylic acid, and resorcinol; retinoids, such as retinoic acid and its derivatives (e.g., cis and trans); amino acids D and L containing sulfur and its derivatives and salts, in particular its N-acetyl derivatives, mixtures thereof and the like. Anti-microbial and anti-fungal assets can be effective to prevent the proliferation and growth of bacteria and fungi. Non-limiting examples of ani-microbial and anti-fungal actives include b-lactam drugs, quinoline drugs, ciprofloxacin, norfloxacin, tetracycline, erythromycin, amikacin, 2,4,4'-trichloro-2'-hydroxy diphenyl ether, 3,4 , 4'-trichlorobanilide, phenoxyethanol, triclosan; triclocarban; and mixtures thereof and the like. Active anti-wrinkles, anti-atrophy of the skin and repair of the skin can be effective to fill or rejuvenate the epidermal layer. These assets generally provide these desirable benefits for skin care by promoting or maintaining the natural process of peeling. Non-limiting examples of active anti-wrinkle and anti-atrophy of the skin include vitamins, minerals and nutrients of the skin, such as milk, vitamins A, E and K; alkyl esters of vitamin, including alkyl esters of vitamin C; magnesium, calcium, copper, zinc and other metal components; retinoic acid and its derivatives (e.g., cis and trans); retinal; retinol; retinyl esters, such as retinyl acetate, retinyl palmitate and retinyl propionate; compounds of vitamin B3 (such as niacinamide and nicotinic acid), alpha hydroxy acids, beta hydroxy acids, for example, salicylic acid and derivatives thereof (such as 5-octanoyl salicylic acid, 4-salicylic heptyloxy acid and 4-acid) methoxy salicylic); mixtures thereof and the like. Skin barrier repair assets are those active for skin care, which can help repair and fill in the natural moisture barrier function of the epidermis. Non-limiting examples of the skin barrier repair actives include lipids such as cholesterol, ceramides, sucrose esters and pseudo-ceramides as described in the European patent specification no. 556,957; ascorbic acid; biotin; esters of biotin; phospholipids, mixtures thereof and the like. Non-spheroidal soothing cosmetics can be effective in preventing or treating inflammation of the skin. The soothing active enhances the skin appearance benefits of the present invention, for example, such agents contribute to a more uniform and acceptable skin tone or color. Non-limiting examples of soothing cosmetic agents include the following categories; propionic acid derivatives; acetic acid derivatives; phenamic acid derivatives; mixtures thereof and the like. Many of these soothing cosmetic actives are described in U.S. Pat. 4,985,469 for Sunshine et al. , issued on January 15, 1991, incorporated by reference herein in its entirety. Active artificial tanning agents can help simulate a natural tan by increasing melanin in the skin, or by producing the appearance of increased melanin in the skin. Non-limiting examples of artificial bronzing agents and accelerators include dihydroxyacetone; tyrosine; tyrosine esters, such as ethyl tyrosinate and glucose tyrosinate; mixtures thereof and the like. Lightening active ingredients of the skin can actually decrease the amount of melanin in the skin, or provide such an effect by other mechanisms. Non-limiting examples of skin lightening assets useful herein include aloe extract, alpha-glyceryl-L-ascorbic acid, aminothiroxine, ammonium lactate, glycolic acid, hydroquinone, 4-hydroxyanisole, mixtures thereof and the like. Sunscreen active ingredients are also useful herein.
A wide variety of sunscreen agents are described in U.S. Pat. 5,087,445, for Haffey et al. , issued on February 1, 1992; US patent no. 5,073,372, for Turner et al. , issued on December 17, 1991; US patent no. 5,073,371, for Turner et al. , issued on December 17, 1991; and Segarin, et al. , in Chapter VII I, pages 189 et seq. , from Cosmetics Science and Technology, all of which are incorporated herein by reference in their entirety. Non-limiting examples of sunblockers, which are useful in the compositions of the present invention are those selected from the group consisting of octyl methoxy cinnamate (Parsol MCX) and butyl methoxy benzoylmethane (Parsol 1789), 2-ethylhexyl p-methoxycinnamate, -ethylhexyl N, N-dimethyl-p-aminobenzoate, p-aminobenzoic acid, 2-phenylbenzimidazole-5-sulfonic acid, oxybenzone, mixtures thereof and the like. Sebum stimulants can increase the production of sebum by the sebaceous glands. Non-limiting examples of sebum-stimulating actives include brionolic acid, dehydroethiandresterone (DHEA), oryzanol, mixtures thereof, and the like. Sebum inhibitors can decrease the production of sebum by the sebaceous glands. Non-limiting examples of useful sebum inhibiting actives include aluminum hydroxy chloride, corticosteroids, dehydroacetic acid and its salts, dichlorophenyl imidazoldioxolane (available from Elubiol), mixtures thereof and the like. Protease inhibitors are also useful as active in the present invention. The protease inhibitors can be divided into two general classes; the proteinases and the peptidases. Proteinases act in protein-specific inner peptide lanes and peptidases act on peptide bonds adjacent to a free amino or carboxyl group at the end of a protein and thus, cut the protein from the outside. Suitable protease inhibitors for use in the present invention include, but are not limited to, proteinases such as serine proteases, metalloproteases, cysteine proteases and aspartyl protease, and peptidases, such as carboxypeptidases, dipeptidases and aminopeptidases, mixtures thereof and the like . Other active ingredients useful in the present invention are skin firming agents. Non-limiting examples of skin firming agents, which are useful in the compositions of the present invention include monomers, which can bind a polymer to the skin, such as terpolymers of vinylpyrrolidone, (meth) acrylic acid and a hydrophobic monomer comprised by long-chain alkyl (meth) acplants, mixtures thereof, and the like. The active ingredients in the present invention may also include anti-itch ingredients. Suitable examples of anti-itch ingredients, which are useful in the compositions of the present invention include hydrocortisone, metdilizine and trimeprazineare, mixtures thereof and the like. Non-limiting examples of hair growth inhibitors, which are useful in the compositions of the present invention include 17 beta estradiol, anti-angiogenic spheroids, turmeric extract, cycloxygenase inhibitors, donut grass oil, linoleic acid and the like. Suitable 5-alpha reductase inhibitors are such as ethinylestradiol and genistin and mixtures thereof and the like. Non-limiting examples of descaling enzyme enhancers, which are useful in the compositions of the present invention include alanine, aspartic acid, N-methyl serine, serine, trimethyl glycine, mixtures thereof and the like. A non-limiting example of an anti-glycation agent, which is useful in the compositions of the present invention would be amdorine (available from Barnet Products Distributor), and the like. Active agents can be immobilized within or adjacent to agglomerates by any recognized technique, such as, when contacting the agglomerates with a solution or suspension (i.e., a transfer medium) of one or more active agents under conditions sufficient to allow the transfer of a desired amount of active agent to the agglomerates contained in the bar for massage. Preferably, the active agents can be added to the treatment fluid for the agglomerates. This step can then be followed by the isolation of the agglomerates via filtration, evaporation of the solvent or any other process step recognized in the art to produce agglomerates containing active agent. Alternatively, the agglomerates can be formulated directly on the massage bar without being isolated from the transfer medium, as long as the medium is compatible with the bar formulation to which it is added, or a combination of agglomerates and media can be used. transfer. The transfer medium can be a liquid, gel, solid, particulate or mixture thereof, and the like.
Except in the operation and comparison examples, or where explicitly stated otherwise, all figures in this description indicating quantities of material should be understood as modified by the word "approximately".
EXAMPLES The following examples more fully illustrate the embodiments of this invention. All parts, percentages and proportions referred to herein and in the appended claims are by weight unless otherwise noted. The physical test methods are described below. The following inventive toilet rods can be formulated according to the manufacturing methods described below.
Example 1: Normal toilet soaps Pre-moistened agglomerates are added in a flake mixer together with the base of soap, fragrance and other minor components (where all concentrations are based on the finished bar). The gelatinized starch was produced by gelatinization of corn starch at 90 ° C in the presence of water using techniques recognized in the art. This gelatinized starch paste was dried and milled to the desired particle size. The gelatinized starch granules are soaked in the conditioning and benefit agents mentioned above to reduce the rough feel of the particles in the skin.
The soap base can be of varying proportions of the soap components of different fatty acids (one example is described below). The minor components may be the common ingredients used in the manufacture of soap bars including emollients, active agents, colorants, opacifiers, brighteners, etc.
Then, the mixed dough is ground / refined and extruded. The extruded bars are pressed in the desired shape. Four examples of such bars (a, b, c and d) can be made as follows (the concentrations are in% by weight of the bar). Bars Ingredients a b c d Pre-moistened agglomerates: Sunflower seed oil 1 .0 0.5 - 0.5 Mineral oil - - 0.5 Glycerin - - - 1 .0 Gelatinized starch 0.5 0.5 Bentonite granules - - 0.5 0.5 Other bar components: Soap base 87.0 87.3 87.5 86.5 Perfume 1 .0 1 .0 1 .0 1 .0 Irgason DP 300 - 0.2 - - Titanium dioxide 0.5 0.5 0.5 0.5 Water 10.0 10.0 10.0 10.0 Total 100 100 100 100 Example 2: Combar for massage The pre-moistened granules can be added in a flake mixer together with the beating base (described below), having a mixture of soapy and non-soapy active ingredients and other minor components. Then the mixed dough is ground / refined and extruded. The extruded bars are pressed in the desired shape. Three examples of such bars e, f and g can be made as follows (the concentrations are in% by weight of the bar).
Ingredients Pre-moistened agglomerates Gelatinized starch 0.5 0.5 Bentonite granules 0.5 Sunflower seed oil 1 .0 Mineral oil 1 .0 Propylene glycol 1 .0 Other bar components: Soap base 76.8 83.8 71.5 Sodium cocoyl isethionate 10.0 10.0 Alpha olefin sulfonate 3.0 3.0 Cocoamido propil betaína 2.0 Perfume 1 .0 1 .0 1 .0 Salt (sodium chloride) 0.7 0.7 1 .0 Water 10.0 10.0 10.0 Total 100 100 100 Example 2A: Combar for massage A further example was made of an inventive toilet rod q 'prepared according to the method of example 2 as follows:% Active ingredient Tallow / coconut soap noodles 70/30 (at 100) 68 EHDP 0.02 60 EDTA 0.02 39 Sulfomethylester 2 44.5 Betaine 1 .8 28.2 Stearic acid 5 100 Glycerin 0.5 100 Water 1 1 .5 100 Merquat 100 or Mackernium 0.2 40 Coconut fatty acid 0.5 100 Titanium dioxide 0.6 100 Mineral oil (heavy) - Hydi robrite 1000 0.5 100 Petrolato - (2.5 hard) 1 100 Softben-10 (0.3-1 .0 mm) 1 100 Softben-10 (1 .4-2.0 mm) 1 100 A-C Polyethylene 9A 0.05 100 Sunflower seed oil 0.5 100 Fragrance 1 .05 100 Wheat protein - MacPro WWP 0.1 35 Total 100 Note: The sulfonyl ester known as Alpha Step BSS-45 from Stepan.
Example 3: syndet bar for massage The pre-moistened agglomerated particles of the massage components can be added in a flake mixer together with the syndet base (described below), having a mixture of non-soap active ingredients and the other minor components. A small amount of soap base can be added in the flake mixer to facilitate the process. Then, the mixed dough is ground / refined and extruded. The extruded bars are pressed in the desired shape. The base is made by melting sodium cocoyl isethionate with stearic acid, salt and a small amount of soap. This melt is ground into cooled rollers and then used as a base. Three examples of such bars (h, i and j) can be made as follows (the concentrations are in% by weight of the bar): Ingredients h i j Pre-moistened agglomerates: Gelatinized starch 0.5 0.5 Bentonite granules - - 0.5 Sunflower seed oil - - 3.0 Mineral oil 1 .0 Glycerin - 0.5 Other bar components: Syndet soap base 92.5 93.0 90.5 Perfume 1 .0 1 .0 1.0 Water 5.0 5.0 5.0 Total 100 100 100 Example 4: Translucent bar The first translucence is created at the base of transparent soap (described below), by mixing high cut at 47-50 ° C for about 30 minutes up to 50 minutes. The pre-treated agglomerates are added in the mixer together with the fragrance at the end of this period of 30 to 50 minutes and mixed for about 5 minutes. Then the mass is extruded under controlled temperature conditions to obtain a translucent bar with the dispersed agglomerates. Four examples of such bars (k, I, m and n) can be made as follows (the concentrations are in% by weight of the bar): Ingredients k I m n Pre-moistened agglomerates Gelatinized starch 0.15 0.15 Bentonite granules - - 0.15 0.15 Sunflower seed oil 0.35 Mineral oil - 0.35 Propylene glycol - - 0.35 0.35 Other bar components: Soap 1 82/18 (anhydrous) 70.5 71 .5 72.5 72.5 Glycerin 5.0 3.0 5.0 - Propylene glycol 5.0 3.0 - 5.0 Triethanolamine - 3.0 3.0 3.0 Perfume 1 .0 1 .0 1 .0 1 .0 Water 18.0 18.0 18.0 18.0 Total 100 100 100 100 1 Seboato / cocoato Example 5: Melt-pour bar formulations Melt-pour bars can also be made depending on the melting properties of the particular mixture used. In this case, the formulation is made by melting all the ingredients at 60-95 ° C. The homogeneous liquid, whether transparent or opaque, is cooled to preferably 65-70 ° C. The pre-treated agglomerates and fragrance are added to this temperature in the melt, homogenized and then the product is emptied into the molds. The mixture is then allowed to solidify under ambient or accelerated cooling conditions. It is preferred to premix the agglomerates in glycerin or any other suitable liquid for better dispersion. The bars after cooling may be transparent, translucent or opaque depending on the formulation. The use of hydrophobic wetting components, such as triglycerides in transparent soap formulations, can reduce transparency. The agglomerates advantageously maintain the oil, thereby preserving the transparency and providing an attractive visual effect on the bar. The control of particle size and the viscosity of the melt are critical for the stable suspension of the powder. Three examples of opaque fusion casting formulations (o, p and q) are as follows (the concentrations are in% by weight of the bar): Ingredients or p q Pre-moistened agglomerates: Gelatinized starch 1 .5 2.5 Bentonite granules - - 1 .5 Sunflower seed oil 3.5 Mineral oil - 4.5 Propylene glycol - - 3.5 Other bar components: Cocoyl isethionate sodium 40.77 42.6 42.00 Stearic acid / palmitic acid 10.00 10.00 10.00 Coconut fatty acid 0.67 - - Sodium Isethionate 0.56 - - Alpha olefin sulfonate 5.00 3.70 4.00 Sodium lauryl ether sulfate (2 EO) 5.00 3.7 1 .00 Perfume 1 .00 1 .00 1 .00 Titanium dioxide 1 .00 1 .00 1 .00 Propylene glycol 7.00 5.00 5.00 Glycerin 4.00 4.00 6.00 Lauryl alcohol 5.00 5.00 6.00 12-hydroxystearic acid 1 1 .00 13.00 15.00 Water q.s. at 100% q.s. at 100% q.s. a Table 2: Toilet bar bases: DESCRIPTION OF TEST METHODS Test methods One or more of the following test methods can be used to characterize toilet bars for massage and compare them with comparative toilet bars. to. Fracture index A quantity of agglomerate is weighed and placed in a test station. An Instron Model-4500 instrument is used using a compression program that runs at 1 mm / minute, to apply an increasing load until the agglomerate fractures. This reading is compared to the fracture load obtained for an equal amount of agglomerate that has been pre-treated with a treatment fluid. The fracture load measured for the treated agglomerate divided by the measured load for the same agglomerate without treatment is the fracture index. b. stiffness index Equipment used: Instron Basic method 1. Load the cell with the solid / semi-solid bar that is balanced and maintained at a constant temperature of 25 ° C using a water bath. 2. Apply the force from the top so that the solid / semi-solid bar is moved at a speed of 10 mm / min through a hole in the bottom of the cell and measure the applied force in kN. The hole has a diameter of 2 mm and a length of 60 mm. The pressure drop across the capillary length defines how rigid the material is. This stiffness index is defined as: Stiffness index = Pressure drop (kPA) = Force (kN) / Area (m 2) where the Area = PI * Diam 2/4 Diam = diameter of the bar that applies force, in this case 31. 4 mm c. Exfoliation test An appropriate corneocyte stain (eg, gentian violet) stain is applied to a 2-5 cm diameter spot on the skin (arm / leg or any other part of the body as desired) and left for 5 minutes to ensure uniform staining of the skin surface cells (corneocytes). The excess dye is then washed by rinsing the stain under running water at 35 ° C for 30 seconds without rubbing the skin.
The stained sites are then washed with the test product. For the bar, the following washing method is adopted. Wet the stain on the skin, pre-wet the bar, rub the bar directly on the stain for 30 s (movement back and forth), rinse for 15 s under running water at 35 ° C for 30 s without rubbing the skin and pat dry gently. Allow the site to dry for 10 minutes. A desquamation tape (Cuderm® manufactured by CuDerm Corporation (Dallas, TX)) is applied on the stain washed under uniform pressure for 30 s and then removed. An image of the descaling tape is formed using a Kodak digital camera DCS 420 with a 105 mm lens. The image is analyzed using a computer image analysis software Optimal for covered area / total intensity of stained cells (Óptimas® is available from Media Cybernetics, Silver Springs, MD). When comparing these data to similar information from an unwashed site, one can estimate the amount of exfoliation caused by the test product as follows: Exfoliation = (area of flaking covered by spot in unwashed site-area of flaking covered by spot in washed site) / (area of flaking covered by spot in unwashed site) Alternatively, exfoliation can also be evaluated in a consumer trial as follows: The test protocol consists of: 1) Recruit approximately 10-20 women in the age group of 25-65 and those who would be using bar for nature. 2) Use test and comparative products for one week each. Half of the panelists would use the test product first and the other half would use the comparative product first. 3) At the end of the test, the panelists rate their preference (on a scale of 0-5 points) on the "exfoliation" attribute. The degree of exfoliation is defined according to the rating of the consumer in the scale of 0-5 points. d. Abrasiveness test on the skin Abrasiveness on the skin is defined as the qualified response of the consumer of abrasiveness on a scale of 0-9 (0 means no abrasion, 10 is abrasiveness caused by a "pouf" (ie an implement) for shower composed of thin plastic filaments, see also, for example, US Patent No. 6,560,384 for Gordon et al.) This test is performed with 50 untrained consumers and is asked to grade the abrasiveness of the test product on a scale of 0-9 punctos The data is normalized based on its response to a bar without exfoliants, to which a value of zero is assigned, and a pouf to which a value of 9 is assigned. The test products are applied to the area of flexion of the forearm when wetting the bar and rub back and forth 10-15 times. and. Skin smoothness The smoothness of the skin is evaluated (clinically) via Primos® (optical skin topography measuring device, in vivo, provided by GFM Esstezhnik GmbH, Berlin, Germany). Baseline roughness is measured (in legs / rails - initiating dryness around grade 1-2). For washing, the bar is rubbed on the skin for 30 s and the foam is left for 90 s, rinsed for 30 s at 35 ° C. Measure the roughness again 30 minutes after the washing process. This procedure can be performed twice a day for a period of up to 5 days. Smoothness is defined as the average decrease in roughness at the end of the study period. Alternatively, the smoothness of the skin can also be evaluated in a consumer trial as follows. The consumer test protocol consists of: 1) Recruit approximately 10-20 women in the age group of 25-65 and those who would use bar by nature. 2) Use test and comparative products for one week each. Half of the panelists would use the test product first and the other half would use the comparative product first. 3) At the end of the test, the panelists rate their preference (on a scale of 0-5 points) on the attribute of "the skin feels softer". Softness is defined as the consumer rating on the 0-5 point scale.
F. Skin softness Skin smoothness can be evaluated using a linear skin Rheometer (Goodyear Scientific Instruments, UK). Exfoliated skin has less dry scales - hence it is softer / less stiff. The test involves baseline skin rheometer readings (on the leg / arms) to measure the dynamic spring constant (mgf / mm) of the skin, which is related to the tightness / softness of the skin. For washing, the bar is rubbed on the skin for 30 s and the foam is left for 90 s, rinsed for 30 s (at a suitable temperature, eg, 35 ° C), and the skin is gently patted. This procedure can be performed twice a day for a period of up to 5 days. Softness is defined as the average decrease in the spring dynamic constant observed during the study period. Alternatively, the softness of the skin can also be evaluated in a consumer trial as follows. The test protocol consists of: 1) Recruit approximately 10-20 women in the age group of 25-65 and those who would use bar by nature. 2) Use test and comparative products for one week each. Half of the panelists would use the test product first and the other half would use the comparative product first. 3) At the end of the test, the panelists rate their preference (on a scale of 0-5 points) on the attribute of "the skin feels softer". Softness is defined as the rating of the consumer on a scale of 0-5 points. g) Zein test method The cleansing base of the inventive toilet rod preferably has zein solubilities of below about 50, 40, 30 and most preferably below about 5, using the zein solubility method set forth below. The lower the zein rating, the softer the product will be considered. This method involves measuring the solubility of zein (corn protein) in the cleaning base solutions as follows. Deeply mix 0.3 g of cleaning base and 29.7 g of water. To this is added 1.5 g of zein and mixed for 1 hour. The mixture is then centrifuged for 30 minutes at 3000 rpm. After centrifugation, the pellet is extracted, washed with water and dried in a vacuum oven for 24 hours until substantially all the water has evaporated. The weight of the dry pellet is measured and the percentage of solubilized zein is calculated using the following equation: % solubilized zein = 100 (1-dry pellet weight / 1.5).
The% zein is further described in the following references: E. Gotte, Skin compatibility of tensides measured by their capacity for dissolving zein protein (Compatibility of the skin of tesins measured by its ability to dissolve zein protein), Proc. IV International Congress of Surface Active Substances, Brussels, 1964, pp. 83-90. h) bar sensory exfoliation index The bar sensory exfoliation index is determined using the following procedure. The user takes the bar in one mana and turns it under running water at 35 ° C. The number of turns required for the exfoliant to be perceived (ie, by tactile sensation) by the user is registered. The bar exfoliation index is defined as the average number of turns required to perceive the exfoliating particles in the bar. i) General consumer test protocol The test protocol consists of: 1) Recruit approximately 10-20 women in the age group of 25-65 and those who are bar users by nature. 2) Use the test and comparative products for a week each. Half the panelists would use the test product first and the other half would use the comparative product first. 3) At the end of the test, the panelists rate their preference on a scale of 0-5 points for the following attributes: Exfoliates Provides gentle exfoliation Moisturizes and exfoliates The skin feels softer The skin feels smoother It is good for the skin Although this invention has been described with respect to particular embodiments of the present, it is evident that numerous other forms and modifications of the invention will be obvious to those skilled in the art. The appended claims and this invention should generally be construed to cover all those obvious forms and modifications, which are within the true spirit and scope of the present invention.

Claims (10)

1 . A massage toilet bar, comprising: a. 5% up to 80% by weight of one or more anionic surfactants; b. 0.02% to 20% by weight of disintegrable agglomerates, the agglomerates include a plurality of particles, optionally containing a binder; and a treatment fluid that covers at least a portion of an interior surface of the particles in the agglomerates, the fluid of a hydrophilic compound being selected, a hydrophobic compound a mixture thereof; c. wherein the agglomerates have a fracture index of less than 1.0; and d. wherein the bar has a stiffness index of more than about 0.2 Mpa at 25 ° C.
2. The bar of claim 1, wherein the disintegrable agglomerates are disintegrable in water or any other hydrophilic substance with or without applied cutting force. The bar of claim 1 or claim 2, wherein the average weight ratio of particle treatment fluid and optional binder in the agglomerates is in the range of 1: 5 to 5: 1. 4. The bar of any of the preceding claims, wherein the average diameter of the agglomerates is in the range of 0.1 to 20.0 mm. The bar of any of the preceding claims, wherein the treatment fluid is in an effective viscosity range for the fluid to at least partially permeate the agglomerates and coat at least a portion of the interior surface of the particles in the agglomerates before the bar solidifies. The bar of any of the preceding claims, wherein the treatment fluid is selected from polyhydric alcohols, fatty acids; polyols; tri- and diglyceride oils; petroleum oils; silicone oils, fluorinated oils, brominated oils, lower alkyl and C14 esters; lower alkyl and C14 alcohols; or mixtures and derivatives thereof. The bar of any of the preceding claims, wherein the treatment fluid has less than 10% water. The bar of any of the preceding claims, wherein the plurality of particles are agglomerated before being formulated in the bar, agglomerated during the bar formulation or agglomerated using a combination thereof. The bar of any of the preceding claims, wherein the plurality of particles is selected from hydrophilic clays; hydrophobically modified clays; silica; zeolite; cellulose; starch; or mixtures and derivatives thereof. The bar of any one of the preceding claims, wherein the one or more anionic surfactants contain a mixture selected from a mixture of 0 to 30% by weight of one or more fatty acid soaps, and 15 to 60% by weight of one or more anionic non-soap surfactants; a mixture of 30 to 80% by weight of one or more fatty acid soaps, and 5 to 40% by weight of one or more non-soap anionic surfactants; or a mixture of 30 to 80% by weight of one or more fatty acid soaps; and 0 to 10% by weight of one or more non-soap anionic surfactants. eleven . A process for manufacturing a bar for massage, comprising the steps of no particular order: a. contacting the particle agglomerates with a treatment fluid under effective conditions so that the agglomerate has reached a fracture index of less than 1.0 to form a pre-treated agglomerate, the fluid being selected from a hydrophilic compound, a hydrophobic compound or a mixture of them; b. mixing the pre-treated agglomerate with at least one component of a toilet bar base selected from a soap base, syndet base, or warming base, optionally containing a fragrance and other minor components to form a mixed mass; c. treating the mixed dough via an effective combination of milling, refining and / or extrusion to form a refined dough; and d. process the refined mass either by extrusion followed by stamping, cutting, a combination of extrusion / stamping and cutting, or casting followed by hardening to form a bar for massage. 12. A method for cleaning the skin with a massage bar, comprising the steps of: a. Moisten the bar for water massage; The bar includes: 1. 5% to 80% by weight of one or more anionic surfactants; 2. 0.02% to 20% by weight of water-disintegrable agglomerates, the agglomerates include a plurality of particles, optionally containing at least a portion of an interior surface of the particles in the agglomerates, the fluid of a hydrophilic compound being selected, hydrophobic compound or a mixture thereof;
3. where the agglomerates have a fracture index of less than 1.0; and
4. where the bar has a stiffness index of more than 0.2 Mpa a 25 ° C; and b. rub the wet bar on the skin with enough force to cause the agglomerates to disintegrate while cleaning and massaging the skin.
MXPA/A/2006/006313A 2003-12-05 2006-06-02 Massaging toilet bar with disintegrable agglomerates MXPA06006313A (en)

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Application Number Priority Date Filing Date Title
US10730635 2003-12-05

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MXPA06006313A true MXPA06006313A (en) 2006-10-17

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