FR2879172A1 - Kit, useful for washing crockery, comprises a foam distributing generator to generate foam and crockery washing composition having low solubility in water - Google Patents

Abstract

Kit (I) for washing crockery comprises a container comprising a foam distributing generator (II) to generate foam and a crockery washing composition (III) comprising an organic ester solvent (IV) with low solubility in water. Independent claims are also included for: (1) a wrought applicator to be used with a kit for washing crockery; and (2) a crockery washing composition (III), comprising a surface active agent, an organic solvent with low solubility in water and a set of instructions containing the recommendations to use (III) in combination with a distributor generating a foams.

Description

TECHNICAL AREA

  The present invention relates to a kit for dishwashing comprising a dispenser generating a foam and a dishwashing composition contained therein. The dish washing composition comprises an organic ester solvent with low water solubility.

  BACKGROUND OF THE INVENTION During cleaning, particularly dishwashing, and more specifically manual dishwashing, a bulky foam is considered a direct indicator of the appropriate concentration of the washing composition of the laundry. the dishes. In a consumer cleaning product, consumers also consider the foam as an indication of how well the composition cleans and / or removes oil and dirt. It is a natural habit for a dishwashing person to add an extra amount of dishwashing composition when the level or volume of the foam decreases, as the cleaning performance is erroneously considered to be ineffective. direct correlation with the level of foam; as the foam level decreases, the cleaning performance is perceived to be decreasing.

  Foam generation is particularly difficult when a composition formulated as a microemulsion is used. It has been discovered that during the use of a microemulsion and certain other modern cleaning compositions, the foaming profile may not correspond directly to the most effective cleaning concentration. For example, microemulsions based on conventional nonionic surfactants may exhibit their maximum fat absorption capabilities at dilution levels at which little or no foam is formed, even with regular agitation such as place during manual dishwashing. In fact, in some microemulsion systems, the microemulsion itself acts to prevent or reduce foam formation during normal dishwashing. Similarly, a highly concentrated anionic surfactant system containing an alkyl ethoxysulfate may not exhibit significant foaming characteristics, even if the system is capable of effectively and efficiently removing significant amounts of fat and oils from the foams. dishes, cutlery, and even plastic.

  The consumer is reluctant to purchase and use such dishwashing compositions because such compositions are considered to be lacking in suds and thus (incorrectly) also considered to lack acceptable cleaning performance. To overcome this lack of foam, chemical foam boosters have been added to many manual dishwashing formulations; however, these foam boosters can be expensive and provide little or no real cleaning benefits. In addition to raising the costs of formulation, these foam boosters may also be incompatible with some surfactant systems.

  Another problem encountered by the Applicant was the need to precisely control the viscosity of the cleaning composition contained inside the foam dispenser. The surfactants of the composition tend to increase the viscosity of the product. However, a composition having a viscosity exceeding a maximum threshold of 200 cPs can not be readily dispensed from a foam dispenser. Many solvents are capable of lowering the viscosity of said composition, but have the deleterious effect of also negatively influencing the cleaning performance, increasing the unpleasant odor level and decreasing the flash point of the composition.

  Containers, and more particularly dispensing containers for forming a foam, are well known in the sprayer and aerosol activator techniques, the toilet bowl cleaning technique, the shaving foam technique and the laundry washing techniques. hands and body. These dispensers generally contain a gas injection mechanism such as an air injection piston, a propellant gas, a foam generating orifice, and / or a pressurized gas which is combined in turbulence with a liquid soap when it comes out of the container. By using this turbulence mixture and / or a foam-generating orifice, a foam is created which is then used to wash the hands and / or the body. These foaming hand and body wash compositions are particularly preferred by some consumers because they believe that they are soft and harmless to the skin, while spreading easily and evenly over the skin. In addition, while foam-generating dispensers are also known for cleaning purposes, such as automobile washing and industrial cleaning, these foam-generating dispensers have not heretofore been used to contain and control foam. dispense a dishwashing composition.

  Therefore, there is a need for an improved cleaning and / or dishwashing composition that exhibits acceptable foaming without the need for foam enhancers. There is also a need for a cleaning and / or dishwashing kit which generates a foam in which the solubilization of the oil is maximized, and which provides acceptable foaming at a dilution at which the characteristics of the Oil solubilization of the dishwashing composition are greater than they are at the dilution at which an acceptable foam is formed during use. And finally there is a need for a means of obtaining the above characteristics with an acceptable viscosity for use with a foam generating dispenser.

  SUMMARY OF THE INVENTION In accordance with the present invention, there is provided a dishwashing kit comprising a container comprising a foam generating dispenser for generating a foam and a dishwashing composition contained within said container comprising an organic ester solvent with low solubility in water.

  It has now been found that the combination of a foam generating dispenser and a dishwashing composition can simultaneously provide both acceptable foaming and superior solubilization characteristics. Without wishing to be bound by theory, it is believed that when graphically plotted against dilution with water, the typical foam generation curve in use and the solubilization curve of the oil tend to not to substantially overlap, particularly in the case of a microemulsion dishwashing composition and / or a protomicroemulsion dishwashing composition. However, by using a foam generating dispenser to dispense a dishwashing composition, the user is positively encouraged to use the dishwashing composition when the solubilization of the oil and the cleaning is more effective. Therefore, it is believed that such a combination results in significantly cleaner dishes, reduced effort, reduced formulation costs, and more efficient use of the dishwashing composition.

  The use of specific water insoluble solvents such as organic esters results in a composition that provides preferred viscosities, performance, odor and flash points for dispensing from a foam generating dispenser. . More particularly, the Applicant has discovered that the combination of dibutyl adipate and a mixture of anionic surfactants (paraffin sulfonate and alkyl ethoxysulfate) provides a preferred foam delivery from the dispenser, while maintaining a acceptable performance, odor and flash point.

BRIEF DESCRIPTION OF THE DRAWINGS

  Although the description ends with the claims specifically highlighting and claiming the invention distinctly, it is believed that the invention will be better understood from the following description of the accompanying figures, in which like reference numerals identify similar elements. and wherein: Figure 1 is a sectional view of a preferred embodiment of the foam generating dispenser; Figure 2 is a perspective sectional view from above of a preferred embodiment of the shaped applicator; and Fig. 3 is a perspective sectional view of a preferred embodiment of the shaped applicator.

  The present figures are not necessarily scaled.

  DETAILED DESCRIPTION OF THE INVENTION

  In this specification, all percentages, ratios, and proportions are by weight of the final dishwashing composition, unless otherwise indicated. All temperatures are in degrees Celsius (C) unless otherwise indicated.

  As used herein, the term "comprising" means that other steps, ingredients, elements, etc. that do not affect the end result can be added. This term includes the terms "consisting of" and "consisting essentially of".

  As used herein, the term "tableware" means dish, tableware, baking dish, glassware, cutlery, cutting board, food preparation equipment, etc., which is washed before or after food contact, that is used in a food preparation process and / or for serving a food.

  As used herein, the terms "foam" and "foam formation" are used interchangeably and refer to separate gas bubbles bound by and suspended in a liquid phase.

  As used herein, the term "microemulsion" refers to an oil-in-water emulsion that has the ability to emulsify oil in the form of invisible droplets. These invisible droplets generally have a maximum diameter of less than about 100 Angstroms (Å), preferably less than 50 Å, as measured by methods known in the art, such as ISO 7027 which measures turbidity at a length of wave of 880 nm. Turbidity measuring equipment is readily available from, for example, Omega Engineering, Inc., Stamford, Connecticut, United States of America.

  As used herein, the term "protomicroemulsion" refers to a composition that can be diluted with water to form a microemulsion.

CONTAINER

  The container useful herein has a hollow body for containing a dishwashing composition, and is generally a bottle or can made of plastic, glass and / or metal, preferably a polymer or resin such as polyethylene, polypropylene, polyethylene terephthalate, polycarbonate, polystyrene, ethyl vinyl alcohol, polyvinyl alcohol, a thermoplastic elastomer, and combinations thereof, although other materials known in the art may also be used. These containers will generally contain about 100 ml to about 2 liters of liquid, preferably about 150 ml to about 1.2 liters of liquid, and more preferably about 200 ml to about 1 liter of liquid, and are well known to contain liquid consumption. These containers are widely available from many packaging suppliers.

  The foam generating dispenser is operatively connected to the container, either directly or indirectly, to generate a foam. When activated, the foam generating dispenser generates foam and concurrently distributes the suds / dishwashing composition from the container. The foam generating dispenser may either form an integral part or be distinct from the container. If formed separately, the foam generating dispenser can be attached to the container by methods known in the art, such as using a transition piece, corresponding male and female threaded members, gaskets under pressure and not under pressure, locking and clipping parts, and / or other methods known in the art. Preferably, the foam generating dispenser is attached to the container via a transition piece and / or corresponding male and female threaded elements which allow easy refilling.

  The foam generating dispenser can generate a foam by any method, such as a chemical reaction, an enzymatic reaction and / or a mechanical action. However, a mechanical action is preferred here, and generally involves a mechanism that transmits a gas, such as air, nitrogen, carbon dioxide, etc., directly into the dishwashing composition, so turbulent during the distribution, so as to physically form the foam. Preferably, the foam generating dispenser comprises a gas transmitting mechanism for forming the foam such as, for example, a propellant or a liquefied gas, a pressurized gas, an aerosol gas, an air injection piston , a foam-generating orifice, an impact surface, a screen or mesh network, a pump, and / or a sprayer, more preferably an air injection piston, a pump, an impact surface, a sieve or network of meshes and / or a sprayer that injects or transmits air from the atmosphere into the dishwashing composition.

  The foam generating dispenser also generally comprises an activator, for example a manual activator, such as, for example, a trigger, a pressure activated pumping mechanism, a button, and / or a slider, more preferably a trigger. and / or a pressure activated pumping mechanism that can be activated with a single finger. It is particularly preferred that the activator is designed so that the consumer can easily activate it when his hands are wet and / or slippery, such as in the middle of a manual dishwashing process. Such an activator must allow the user to easily and conveniently control both the speed of distribution and the volume dispensed. For some applications, such as in industry or local administrative offices, other activators may be useful, such as an electronic activator. a computer-assisted activator, an electric eye or an infrared sensing activator, a lever-assisted manual activator, etc. Figure 1 is a sectional view of a preferred embodiment of the foam generating dispenser 10 with a nozzle 12 from which the foam dishwashing composition is dispensed. The dishwashing composition enters the foam generating dispenser through a dip tube, 14, and flows past a ball, 16, and into a cylinder, 18. A plug, 20, prevents the ball, 16, from escaping and also supports a coil spring, 22, and an inner rod, 24. A liquid piston, 26, creates a suction which results in the dishwashing composition over the beyond the ball, 16, and the plug, 20, in a liquid chamber, 28, and thereby initiates the foam generating dispenser, 10. Meanwhile, an air chamber, 30, and an air piston, 31 are also primed and, when the activator 32 is lowered, both air from the air chamber 30 and the dishwashing composition from the liquid chamber 28 are turbulence in the mixing chamber, 34, and beyond a first sieve, 36, and a second sieve, 38, which are both maintained in 40. When the turbulent mixture of air / dishwashing composition is forced past the first sieve, 36, a first raw foam is generated, which becomes thinner and uniform after passing through the sieve. 38. The first screen and the second screen may have the same or different pore sizes. In addition, additional sieves can be used if desired.

  Fig. 1 also shows a base cap 42 which secures the foam dispenser to the container 44 which contains the dishwashing composition.

  Preferred foam generating dispensers, useful herein, include T8900 Foamers, OpAd FO, Series 8203 and 7512, from Alfa-Polytek, Helmond, The Netherlands; the foaming devices T1, F2 and WR-F3 from Airspray International, Inc., Alkmaar, The Netherlands or North Pompano Beach, Florida, United States of America; the TS-800 and Mixor series, by Saint Gobain Calmar, Inc., City of Industry, California, United States of America; pump foaming devices and pressure foaming devices from Daiwa Can Company, Tokyo, Japan; the foaming devices of the TS1 and TS2 series of Guala Dispensing USA, Inc., Hillsborough, New Jersey, United States of America; and YT-87L-FP, YT-87L-FX and YT-97 series foaming devices from Yoshino Kogyosho Co., Ltd., Tokyo, Japan. See also the foam-generating dispensers disclosed in the Japanese language publications Food & Package (2001), Vol. 42, No. 10, pages 609-13; Food & Package (2001), Volume 42, No. 11, pages 676-79; and Food & Package (2001), Volume 42, No. 12, pages 732-35. Existing foam-generating variations and modifications of dispensers may also be useful here, especially if it is necessary to optimize performance because of the rheology of the product. More particularly, variations concerning the piston volume ratio of the air are envisaged: piston of the product, the sizes of the sieves / mesh networks, the angle of impact, etc., as well as the optimization of the cylinder, the sizes and dimensions of the rod, dip tube, nozzle, etc. The foam generating dispenser useful herein generates a foam having a foam weight ratio of greater than about 2 ml / g, more preferably about 3 ml / g to about 10 ml / g, and even more preferably about 4 ml / g. ml / g at about 8 ml / g. In addition, the foam-producing dispenser useful herein generates at least about 2 ml of foam, preferably about 3 ml to about 10 ml, and more preferably about 4 ml to about 8 ml, per ml of dishwashing composition. "Creamy" and "smooth" foams having fine bubbles dispersed relatively uniformly throughout the structure may be particularly preferred for their cosmetic or performance characteristics. In some cases, the preferred foams are those which do not significantly degrade to a liquid in a period of 3 minutes. More particularly, when the foam is dispensed onto a clean glass surface (eg a PYREXTM plate), and left standing for 3 minutes at 25 ° C, less than 1 mm of liquid should be apparent. Preferably, no liquid is visible at the edge of the foam after 3 minutes. However, in other cases, it has also been found that a certain amount of liquid (i.e., non-foam) is also preferable because this liquid then enters the applicator (e.g., a sponge) and further elongates the path of the high viscosity composition when used, for example, for cleaning dishes. The present dishwashing composition generally comprises an organic ester solvent with low water solubility, and optionally one or more ingredients known in the cleaning art, and particularly the cleaning agent. dishwashing, such as a surfactant, other solvents, a colorant, a perfume, a thickener, a pH control agent, a reducing or oxidizing bleaching agent, a control agent of the odor, antioxidants and free radical inhibitors, and mixtures thereof.

  The term organic solvent with low solubility in water refers to a solvent which is less than 4% soluble in water. More preferably, the organic solvent with low water solubility is selected from those which are less than 2% soluble in water, and most preferably less than 1% soluble in water.

  The water-solubilized organic ester solvent is preferably selected from those having the general formula: ROC (O) - (CH 2) C (O) OR wherein R is a linear or branched C 1 -C 10 hydrocarbon, and n is an integer having a value of 0 to 8. More preferably, R is linear or branched to C4, and n is 4. More preferably, the organic solvent with low water solubility is selected from the group consisting of dialkyl esters of C 1 -C 10 diacids, such as adipic, oxalic, malonic, succinic, glutaric and pimelic acids, and mixtures thereof.

  The present composition preferably comprises a surfactant system. Surfactants suitable for use herein include anionic surfactant, amphoteric surfactant, cationic surfactant, nonionic surfactant, zwitterionic surfactant, or a mixture thereof. this. More preferably, the surfactant system comprises an alkyl sulphate, an alkoxysulphate, an alkyl sulphonate, an alkoxysulphonate, an alkylarylsulphonate, an amine oxide, a betaine or a derivative of a secondary or tertiary aliphatic or heterocyclic amine, a quaternary ammonium surfactant, an amine, a single or multiple alkoxylated alcohol, an alkylpolyglycoside, a fatty acid amide surfactant, a C8 to C20 ammonia amide, a monoethanolamide, a diethanolamide, an isopropanolamide, a polyhydroxy fatty acid amide, and a mixture of these. The surfactants useful herein may further be branched and / or linear, substituted or unsubstituted as desired. See also "Surface Active Agents and Detergents", (Volumes I and II, by Schwartz, Perry and Berch).

  In a preferred embodiment, the surfactant system comprises an anionic surfactant and optionally other surfactants. In a particularly preferred embodiment, the surfactant system comprises paraffin sulfonate, linear alkylbenzenesulfonate, alkyl ethoxysulfate, and mixtures thereof resulting in preferred viscosities, performance, odor, and flashpoints for delivery from a dispenser generating a foam. More particularly, we have found that the combination of dibutyl adipate and a mixture of anionic surfactants, especially paraffin sulfonate and alkyl ethoxysulfate, results in a preferred system.

  The compositions of the present invention may include additional solvents. Said additional solvent is generally selected from the group consisting of water, alcohols, glycols, ether alcohols, and a mixture thereof. More preferably, the additional solvent is selected from the group consisting of water, glycol, ethanol, glycol ethers, water and a mixture thereof, and even more preferably from the group consisting of propylene carbonate, propylene glycol, tripropylene glycol n-propyl ether, diethylene glycol n-butyl ether, water, and a mixture thereof.

  The solvents which are capable of lowering the viscosity of the product and / or of imparting to the compositions a shear separation or non-Newtonian separation rheology profile, are particularly preferred here as additional solvents, since they can interact synergistically with the generating distributor. foam to provide improved cosmetic characteristics, easier formulation, superior foam generation, easier pumping ability, etc. These additional solvents include mono-, di- and polyhydric alcohols, ethers, and mixtures thereof. Alkyl carbonates such as propylene carbonate are also preferred.

  A cleaning composition and in particular a microemulsion or protomicroemulsion dishwashing composition also generally contains a low water-solubility oil having a solubility in water of less than about 4%, preferably less than 2%, more preferably less than 1%. Preferred low water solubility oils useful herein include terpenes, isoparaffins, and other oils having the above solubility, and a mixture thereof.

  In the absence of a foam generating dispenser, the present cleaning and / or dishwashing composition generally has an effective foaming dilution range of less than about 50%, preferably from about 0% to about 40%. %, and more preferably from about 0% to about 35% of the dilution range. However, in one embodiment of the present invention, the dishwashing composition, when used with the foam generating dispenser, exhibits an effective foaming dilution range of at least about 50%, preferably from about 50% to about 100%, more preferably from about 75% to about 100%, and still more preferably from about 85% to about 100% of the dilution range. The effective foaming dilution range is calculated as follows: The foam generation curves of graph I are generated by testing various dilutions of a dishwashing composition through the present foam roll test. Such a curve can be generated either with or without dispensing from a foam generating dispenser in the cylinders. "Effective foam" is defined herein as a foam that accounts for at least half (50%) of the maximum foam volume generated for a given dishwashing composition according to the foam generation curve. Therefore, in graph I for which the foam generating dispenser is not used, effective foaming is formed from about 28% to about 2% product concentration, resulting in an effective foaming dilution of 26% (i.e., 28% -2%). However, when the same cleaning and / or dishwashing composition is used with the (ie dispensed from) foam generating dispenser, it can be seen that the effective foam is generated from the dispensing point. (product concentration of 100%) until a product concentration of about 3% is reached. This is because the cleaning and / or dishwashing kit generates a foam at a dilution of dishwashing composition in the water substantially different from the dilution at which the maximum volume of foam is formed in accordance with the test of the foam cylinder. Thus, the effective foam dilution interval when the dishwashing composition of Chart I is dispensed by a foam dispenser is 97% (i.e., 100% -3%). a.m

  00 00 p Product Concentration 1% 1 Foam Generating Foam Foam Foam Genome Without Dispenser Generating Foam Germination Curve with Generic Dispenser in m! kit generated foam Hut solubilization curve in%, oil 00h, bileo by urm microemulsion of ionic base Graph 1 The cleaning and / or dishwashing composition useful here has an oil solubilization curve which is generated by the oil solubilization test defined herein. "Effective oil solubilization" is defined herein as an oil solubilization which is at least 20% of the maximum amount of solubilized oil for a dishwashing composition given in accordance with the solubilization curve of oil which is graphically plotted against product concentration (ie, dilution). Therefore, in Chart I, the maximum amount of solubilized oil is about 4.7 at a product concentration of 70%, and thus the effective oil solubilization is an amount of at least about 0.94. . Effective oil solubilization occurs from about 96% to about 42% dilution ranges, resulting in an effective oil solubilization dilution interval of about 54%.

  As can be seen in graph I, there is virtually no overlap between the foamless distributorless foam generation curve and the effective oil solubilization dilution range. Similarly, it can be seen that without a foam-generating dispenser there is no overlap between the effective foam dilution range (28% to 2%) and the solubilization dilution range of effective oil (from 42% to 96%). On the other hand, when using a foam generating dispenser, the effective foam dilution range (3% to 100%) completely overlaps (100%) the entire effective oil solubilization dilution range. (from 42% to 96%). In a preferred embodiment, the effective foam dilution interval overlaps the effective oil solubilization dilution range, preferably the effective foam dilution interval overlaps the effective oil solubilization dilution range. at least about 10%, more preferably from about 25% to about 100%, and still more preferably from about 50% to about 100%, particularly in the case of a microemulsion or a protomicroemulsion. In addition, it is highly preferred that the effective foam dilution interval overlaps the point in the oil solubilization curve when oil solubilization is at a maximum. Thus, the present invention encourages a user to use the product at a concentration / dilution of the product that solubilizes the oil more effectively and thus optimizes cleaning.

  The present invention has recognized that such a dishwashing composition, and particularly microemulsion and protomicroemulsion dishwashing compositions, require that the present foam-generating container and dispenser achieve consumer-acceptable foaming. at a dilution at which the oil solubilization curve is more efficient, and preferably maximized. Therefore, it is preferred that when the dishwashing composition is used with the container and the foam generating dispenser, an effective foam is generated at a dilution factor significantly different from the foam generation curve when the container and the distributor generating a foam are not used. Without wishing to be bound by theory, it is believed that those skilled in the art will understand that such a graph is generally equally applicable to a microemulsion and / or protomicroemulsion cleaning composition as described herein.

  Manual dishwashing compositions, cleaning compositions, protomicroemulsion compositions, and microemulsion compositions useful in the present invention are known in the art, as described, for example, in WO 96/01305 A1, from Farnworth and Martin, published January 18, 1996; U.S. Patent No. 5,854,187, to Blum et al., issued December 29, 1998; U.S. Patent No. 6,147,047 to Robbins et al., issued November 14, 2000; WO 99/58631 A1, to Robbins et al. , published November 18, 1999; U.S. Patent No. 4,511,488 to Matta, issued April 16, 1985; U.S. Patent No. 5,075,026 to Loth et al. , issued December 24, 1991; U.S. Patent No. 5,076,954, de Loth et al., issued December 31, 1991; U.S. Patent No. US05082584, de Loth et al., issued January 21, 1992; U.S. Patent No. 5,108,643 to Loth et al., issued April 28, 1992; and U.S. Patent Application Serial No. 60/451064 (P & G Registration No. AA614FP), of Ford et al., entitled "Protomicroemulsion, Cleaning Implement Containing Same, And Method 3o Of Use Therefor", filed Feb. 28 2003; U.S. Patent Application Serial No. 60 / 479,441 (AA614P2 Registration P & G), Ford et al., entitled "Protomicroemulsion, Cleaning Implement Containing Same, And Method Of Use Therefor", filed May 23, 2003; the concurrently pending US Patent Application (PCT Registration No. AA614P3), of Ford et al., entitled "Protomicroemulsion, Cleaning Implement Containing Same, And Method Of Use Therefor", filed on and US Patent Application concurrently UT (P & G n Registration AA633FP), by Hutton and Foley, entitled "Photomicroemulsion, Cleaning Implement Containing Same, and Method of Use Therefor", filed on. The dishwashing compositions mentioned in the above references or variations of the above compositions are particularly preferred for use in combination with the foam generating container and dispenser described herein.

  The present cleaning and / or dishwashing composition generally has a viscosity of less than about 10 Pa * s, preferably about 0.01 Pa * s to about 10 Pa * s, more preferably about 0.02 Pa. at about 5 Pa * s, still more preferably from about 0.03 Pa * s to about 1 Pa * s, and most preferably from about 0.05 Pa * s to about 0.4 Pa * s. When the cleaning and / or dishwashing composition is dispensed from the foam generating dispenser, a foam dishwashing composition is produced.

APPLICATOR WAY

  It has further been found that a shaped applicator can, surprisingly, give significantly improved results and ease of use compared to a normal applicator. The shaped applicator is designed and calibrated to be easily held in the hand and is used to apply the dishwashing composition to the surface to be cleaned, i.e. the dishes. It has been found that if the foam dishwashing composition is applied to a flat applicator, then the foam dishwashing and / or washing composition is quickly wiped onto the first dish with which it is placed in contact. but that a small amount of the cleaning composition and / or dishwashing foam will remain on the flat applicator, to clean the following dishes. This makes the use of a foam cleaning and / or dishwashing composition both expensive, as the course of the composition is significantly reduced, and troublesome, because a new cleaning and / or washing composition Foam dishes should be constantly applied to the flat applicator.

  On the other hand, a shaped applicator that contains a receiving area, such as a protected indentation and / or a pocket for the cleaning and / or dishwashing composition of foam, will be maintained more effectively and will dispense the wash composition. foam crockery over time.

  Since the shaped applicator will often be used for scraping, it is preferred that at least one surface thereof be an abrasive surface. The shaped applicator is generally selected from a porous material such as a natural or artificial sponge, a brush, a metal cleaning device, a woven material, a nonwoven material, an abrasive material, a plastics material , a fabric material, a microfiber cleaning material, a polymeric material, a resin material, a rubber material, or a mixture thereof, preferably a natural or artificial sponge, a brush, a metal cleaning device an abrasive material, a foam rubber material, a functional absorbent material (FAM), a polyurethane foam, and a mixture thereof, and more preferably a natural or artificial sponge, an abrasive material, a foam rubber material and a mixture thereof, all types of open cell structures being highly preferred. These shaped applicators are available from a variety of commercial sources, such as Minnesota Mining and Manufacturing Company (3M), St. Paul, Minnesota, United States of America. If the shaped applicator is formed of a relatively delicate material, or a material that is easily torn, then it is preferable that this material be partially or completely covered with a more water-permeable material, such as than a non-woven material. Also useful are surfaces formed of plastics or polymers such as those available, for example, from Minnesota Mining and Manufacturing Company (3M), St. Paul, Minnesota, United States of America, and found therein, for example, as Scotch-BriteTM General Purpose Scrubbing Pads.

  Preferably, the FAM useful herein has an absorption capacity of greater than about 20 g H 2 O / g, more preferably 40 g H 2 O / g, by weight of the FAM. Such a preferred FAM is described in U.S. Patent No. 5,260,345 to DesMarais et al., Issued November 9, 1993 or U.S. Patent No. 5,889,893, to Dyer et al., Issued May 4, 1999. Examples of Preferred polyurethanes are described in U.S. Patent No. 5,089,534 to Thoen et al., issued Feb. 18, 1992; U.S. Patent No. 4,789,690 to Milovanovic-Lerik et al., issued December 6, 1988; Japanese Patent Publication No. 10-182780 to Kao Corporation, published July 7, 1998; Japanese Patent Publication No. 9-30215 to Yokohama Gum, published February 4, 1997; Japanese Patent Publication No. 5-70544, The Dow Chemical Company, published March 23, 1993; and Japanese Patent Publication No. 10-176073, The t 0 Bridgestone Company, published June 30, 1998.

  Preferably, the shaped applicator is not hard, but rather has a resilient portion, preferably a resilient portion that is covered with an abrasive surface. Such an optional resilient portion allows the user to vary the amount of contact, pressure, etc., between the scratching surface and the flat. The foam dishwashing composition is thus preferably applied in or on the shaped applicator directly from the foam generating dispenser.

  Turning to FIG. 2, which shows a top perspective sectional view of a preferred embodiment of the shaped applicator, here 12, a sponge-shaped shaped applicator, 12, contains an area of receiving, 50, to which the foam dishwashing composition is applied for use. The receiving zone, 50, is therefore generally bonded to a wall, 52, which prevents the foam composition from being rapidly wiped from the shaped applicator, 12. The receiving zone is preferably a concave indentation in the applicator shaped container that can have any shape and design that keeps the foam dishwashing composition in contact with the shaped applicator. In a preferred embodiment, the receiving area contains a relatively sloped concave wall or other structure that effectively holds the foam detergent in the receiving area and distributes it over time in typical use. In general, the receiving zone contains about 1 ml to about 200 ml, preferably about 2 ml to about 150 ml, and more preferably about 5 ml to about 100 ml of foam dishwashing composition.

  In Figure 2, the shaped applicator 12 further contains a plurality of abrasive surfaces 54 for scraping a plate. It is highly preferred that at least one abrasive surface be provided on the shaped applicator.

  Fig. 3 shows a perspective sectional view of a preferred embodiment of the shaped applicator 12, which is formed as a sponge shaped applicator 12, having a pocket-like receiving area. , 50, whose internal dimensions are indicated by dashed lines. The to-dishwashing detergent composition is added to the receiving area, 50, via a mouth, 56, which may be permanently open, or may be reclosable, if desired. An abrasive surface, 54, substantially covers the entire exterior of the shaped applicator, 12, to help remove stains from a dish.

  TEST METHODS In the present specification, the viscosity is measured on a Brookfield model n LVDVII + viscometer at 20 C. The rotor used for these measurements is a S31 rotor at the appropriate speed for measuring products of different viscosities; for example, 12 rpm for measuring products with a viscosity greater than 1 Pa * s; 30 rpm for measuring products having viscosities of between 0.5 Pa * s - 1 Pa * s; 60 rpm to measure products with viscosities less than 0.5 Pa * s.

  To measure the solubilization capacity, 10.0 g of the test product (this amount comprises water, if the test is carried out at a specific dilution) are placed in a 25 ml scintillation vial. To this is added 0.1 g of food grade rapeseed oil stained with 0.045% Pylakrome RED-LX1903 dye (a mixture of SOLVENT RED 24 no. 85-83-6 and SOLVENT RED 26 n). 4477-796, available from Pylam Products, Tempe, Arizona, United States of America), and the vial is capped. The flask is shaken vigorously by hand for 5 seconds, and allowed to stand until it becomes clear by an ISO 7027 turbidity measurement procedure, or after five minutes, regardless of the event. which takes place first. The ISO 7027 method measures turbidity at a wavelength of 880 nm with turbidity measurement equipment such as that available from Omega Engineering, Inc., Stamford, Connecticut, United States of America. If the vial becomes clear, then an additional amount of oil is added in increments of 0.1 g until the vial fails to become clear in the prescribed time. Percent oil dissolution is recorded as the maximum amount of oil that has successfully solubilized (i.e., the vial is clear) per 10.0 g of product. Preferably, the present dishwashing composition solubilizes at least about 1 g of colored rapeseed oil, more preferably at least about 3 g of colored rapeseed oil, and still more preferably at least about 4 g of oil. colored rapeseed when tested at a product concentration of 75%.

  The foaming profile can be measured using a Foam Cylinder Test Device (SCT), and using the results to establish a foam generation curve. The TBS has a set of four cylinders. Each cylinder generally has a length of 30 cm and a diameter of 10 cm. The walls of the cylinder have a thickness of 0.5 cm, and the bottom of the cylinder has a thickness of 1 cm. The SCT rotates a test solution in a closed cylinder, typically a plurality of clear plastic cylinders, at a rate of about 21 rpm for 2 minutes, after which the foam height is measured. Soils can then be added to the test solution, shaken again, and the resulting foam height measured again. Such an assay can be used to simulate the initial foaming profile of a composition, as well as its foaming profile during use, as more soils are introduced from the surface to be washed.

  The foaming profile test is as follows: 1. Prepare a set of clean and dry sized cylinders and water with a water hardness of 136.8 parts per million (2.1 grains per liter) and having a temperature of 25 C.

  2. Add the appropriate amount of the test composition to each cylinder and add water to reach a total of 500 ml of composition + water in each cylinder.

  3. Close the cylinders tightly and place them in the SCT.

  4. Turn on the TBS and rotate the cylinders for 2 minutes.

  5. After one minute, measure the height of the foam in centimeters.

  6. The foaming profile is the average foam level, in cm, generated by the composition.

  The compositions according to the invention preferably have a maximum foaming profile of at least about 2 cm, more preferably at least about 3 cm, and still more preferably about 4 cm.

  The examples of the invention are set out below by way of illustration Io and are in no way intended to limit the invention. The examples should not be construed as limitations of the present invention by many variations thereof are possible without departing from its spirit and scope.

EXAMPLE 1

  A dishwashing kit contains a 300 ml hollow plastic container filled with a dishwashing composition as mentioned in the table below, and a fixed set of Airspray Series Ti foamers. , similar to that shown in Figure 1. A shaped applicator according to Figure 3 is also included.

  A 13 CD Preferred Preferred Formula Highly Widely Compared W / Active Amine Active Polymer Sodium Paraffin Sulfonate Sodium Ethoxysulfate 28 9 4 9 Alkyl-6 - 4 Dimethylamine Oxide Ethoxylated Alcohol no 3 - - - Ionic Organic Solvent Solvent with Low Water Solubility Dibutyl Adipate - 6 4 8 Limonene 8 - - - Cosolvent Ethanol 8 6 6 8 Propylene Glycol 8 - - - Glycol - 8 4 8 Parameters Viscosity 80 cPs 40 cPs 40 cPs 50 cPs Flash point 38 C> 45 C> 45 C> 45 C Od Odor Strong Orange Low odor Low odor Low odor Control performance Equal to best cleaning While specific embodiments of the present invention have been illustrated and described, it should be apparent to those skilled in the art that various other changes or modifications can be made without departing from the spirit and of the scope of the invention.

  It is therefore contemplated to cover in the appended claims all such changes and modifications that are included within the scope of the present invention.

Claims (14)

  A dishwashing kit comprising: i) a container comprising a dispenser generating a foam for generating a foam; ii) a dishwashing composition contained within said container comprising an organic ester solvent with low water solubility.   2. A dishwashing kit according to claim 1, further comprising a shaped applicator.   The dishwashing kit of any of claims 1 or 2, wherein the foam generating dispenser comprises a gas injection mechanism.   4. A dishwashing kit according to any one of the preceding claims, wherein the dishwashing composition is either a microemulsion or a protomicroemulsion.   A dishwashing kit according to any one of the preceding claims, wherein the composition comprises a surfactant system The dishwashing kit of claim 5, wherein the surfactant system comprises at least one anionic surfactant selected from the group consisting of alkyl sulfates, alkyl ether sulfates, alkyl sulfonates, alkyl ethoxysulfates, and mixtures thereof.   The dishwashing kit of claim 5 or 6, wherein the surfactant system comprises paraffin sulfonate, alkyl ethoxysulfate and optionally other surfactants.   8. A dishwashing kit according to any one of the preceding claims wherein the low water solubility organic solvent has a solubility in water of less than 4%.   A dishwashing kit according to any one of the preceding claims, wherein the low water solubility organic solvent is an organic ester of the general formula: ROC (O) - (CH2) C (O) OR wherein R is a linear or branched C 1 -C 10 hydrocarbon, and n is an integer having a value of 1 to 8, when branching of the hydrocarbon is present, the branching units are C 1 -C 4 alkyl, at C4.   10. A dishwashing kit according to any one of the preceding claims, wherein the low water solubility organic solvent is selected from the group consisting of dialkyl esters of C, to C, diacids.   The dishwashing kit of claim 10, wherein the diacid is selected from the group consisting of adipic, oxalic, malonic, succinic, glutaric, pimelic, and mixtures thereof.   A dishwashing kit according to any one of the preceding claims, wherein the organic ester with low water solubility is dibutyl adipate.   An applicator shaped for use with a dishwashing kit according to any one of the preceding claims. 14. Dishwashing composition, comprising: a. a surfactant system; b. an organic solvent with low solubility in water; and c. a set of instructions including a recommendation to use the dishwashing composition in combination with a foam generating dispenser.