MXPA06007460A - Rinse-aid composition - Google Patents

Rinse-aid composition

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Publication number
MXPA06007460A
MXPA06007460A MXPA/A/2006/007460A MXPA06007460A MXPA06007460A MX PA06007460 A MXPA06007460 A MX PA06007460A MX PA06007460 A MXPA06007460 A MX PA06007460A MX PA06007460 A MXPA06007460 A MX PA06007460A
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Mexico
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composition
super
surfactant
further characterized
surfactants
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MXPA/A/2006/007460A
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Spanish (es)
Inventor
Anju Deepali Massey Brooker
Andrew Paul Nelson
Jun Wang
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The Procter & Gamble Company
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Publication of MXPA06007460A publication Critical patent/MXPA06007460A/en

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Abstract

A substantially non-aqueous concentrated rinse-aid composition for the heat-free drying of plastic-ware and other dishwashing items, the composition comprising at least 20%by weight of one or more super-wetting surfactants. The composition provides excellent finishing and care of the dishwashing load.

Description

AUXILIARY RINSE COMPOSITION TECHNICAL FIELD The present invention corresponds to the field of dishwashing, it specifically refers to auxiliary rinsing compositions and to the uses of these compositions. The compositions provide drying, finishing and care benefits for washed articles. The invention also relates to unit dose compositions and dishwashing methods that utilize the rinse aid compositions.
BACKGROUND OF THE INVENTION Nowadays, consumers not only expect to get a good cleaning of the automatic dishwashing process, but they also expect that the items that have been cleaned have a good finish. The process must also be smooth enough to avoid damaging these items. The variety of materials that are cleaned in automatic washing machines has gradually increased. Traditional loads include mainly glass, ceramic and metal articles. The current loads include more and more articles of plastic and some of wood.
An unsatisfied need in the dishwashing process is the finishing of plastics, specifically drying. Normally, at the end of the warewashing process the plastic items remain moist, which requires an additional step of manual drying or runoff before they can be stored. Other problems that commonly arise in the dishwashing process are related to the care and appearance of the items that are cleaned. The dishwashing process can promote the corrosion of glass and metal and deteriorate wooden articles or those that have a decorative design. Another problem relates to the appearance of items that have been cleaned, as they sometimes have a lack of gloss and an opaque appearance, particularly glass and metal articles. Another common problem is that of white spots on Teflon articles. U.S. Pat. no. 5,603,776 provides a method for cleaning dishes or plastic utensils in a dishwasher; said method comprises contacting the plastic ware with an aqueous rinse comprising from 2 to 100 ppm of a nonionic surfactant, 0.01 to 10 ppm of a fluorinated hydrocarbon surfactant, and 0.01 to 10 ppm of polydimethylsiloxane modified with a polyalkylene. However, the method set forth in document '776 does not solve the problems mentioned hereinabove. Taking into account these problems, there is a need to have a method for dishwashing that provides a good finish of the items that are cleaned while avoiding or reducing the deterioration of these items.
BRIEF DESCRIPTION OF THE INVENTION In accordance with a first aspect of the present invention, a virtually nonaqueous concentrated rinse aid composition is provided for the drying of plastic ware and other dishwashing utensils without the application of heat. The composition preferably comprises at least about 20%, more preferably at least about 25%, by weight, of one or more super wetting surfactants, as defined hereinbelow. As used herein, the term "practically non-aqueous" is intended to include compositions containing less than about 20%, preferably less than about 15% and, more preferably, less than about 10% water, by weight of the composition. The compositions herein are applied in the aqueous rinse cycle of an automatic dishwashing machine and are capable of completely drying the plastic ware and other items of dishwashing in the subsequent drying cycle without the application of heat. More specifically, a composition is said to be useful for "drying plastic dishes and other items of dishwashing without the application of heat" when a rinse concentration of less than about 450 ppm, for example less than about 350 ppm, preferably less than about 300 ppm, and more preferably less than about 200 ppm provides total drying of a 20 cm by 15 cm plastic sheet of polypropylene or polystyrene when placed vertically in the top rack of a GE500 dishwasher using the program called "normal" at a temperature of 37 to 50 ° C without applying heat during the drying cycle. The plastic sheet is visually evaluated 5 minutes after the end of the program (during this time the dishwasher remains closed). Total drying is obtained when the plastic sheet exhibits less than 5 droplets, preferably less than 3 droplets, and most preferably no droplet at all. Of the surfaces that are in a load typical of lavavajilas, the plastic is one of the most difficult surfaces to dry; therefore, it is expected that if the plastic can be dried under certain conditions (including the presence of a rinse aid), other articles can also be dried. Generally, a surfactant is considered to be "super moisturizing" if a drop of a 0.3% aqueous solution, preferably 0.03%, by weight of the surfactant spontaneously spreads in an essentially uniform film on a smooth plastic surface (eg polypropylene or polystyrene). and flat in less than about 10 minutes, preferably in less than about 5 minutes, more preferably in less than 3 minutes and, especially, after less than one minute. For the purpose of this invention, it can be evaluated whether a surfactant is super humid or not according to the following method: using a micropipette a drop is created, preferably a drop of 20 μL, of the aqueous solution (distilled water) of the surfactant which it will be tested and placed on a flat and flat horizontal surface of polypropylene or polystyrene (for example a "crystal grade" polystyrene petri dish, supplied by SPI) pre-washed with distilled water and dried at room temperature, ie at 20 ° C with humidity of 30% to 40%. The distance between the drop that has just been released from the tip of the micropipette and the surface is approximately 3 mm. After a certain time, the diameter of the drop (or strictly the region of the surface moistened by the drop) is measured with the help of a medium of images (camera) or to the naked eye (a grid is placed under the plate) petri in order to quantify the diameter of the drop). The test is then repeated using a drop of pure (deionized) water. A surfactant is considered to be super-wetting if the extension factor (diameter of the surfactant solution / diameter of the pure water solution) is greater than about 2, preferably greater than about 3, more preferably greater than about 4, and especially higher about 8, after 5 minutes, preferably after 3 minutes, more preferably after 1 minute. Preferably, the super wetting surfactants (0.3% aqueous solution, preferably 0.03%) have a contact angle of less than about 15 °, preferably less than about 13 °, and more preferably less than about 11 ° over a surface of polypropylene or polystyrene. Preferably, the compositions of the invention (aqueous solution at 0.3%, preferably at 0.03%) have a contact angle of less than about 16 °, preferably less than about 14 °, on the surface of polypropylene or polystyrene. The contact angle can be measured by preparing an aqueous solution comprising 0.3%, preferably 0.03%, by weight, of the surfactant solution or auxiliary rinse composition to be measured. An FTA 200 contact angle measuring device from First Ten Angstroms is used. The measurements are carried out at room temperature in 2 cm x 5 cm polypropylene (roll of natural color plastic sheets from Polymex, supplied by Plástic Shims &Gaskets Co. Ltd.) or polystyrene strips. Using a syringe, a drop of the solution is placed on a strip of polypropylene or polystyrene. The distance between the strip and the tip of the syringe is approximately 3 to 5 mm. The photos of the extension are taken with a high speed CCD camera (Charge Coupled Device or charge coupled device), and analyzed with the FTA 200 software. Preferably, the super wetting compositions and surfactants of the present satisfy the above tests in at least one and preferably both surfaces mentioned above, with polypropylene being preferred.
Suitable super-moisturizing surfactants for use herein include a variety of siloxane and hydrocarbon based surfactants. In a preferred embodiment, the super-moisturizing surfactant is selected from the group comprising: i) polyoxyalkylene siloxanes, wherein the polyalkylene oxide residue has the general formula (EO) n (PO) m, wherein EO is ethoxy, PO is propoxy , n is at least about 3 and greater than m; ii) nonionic ethoxylated alcohols having an average of about 4 to about 10 moles of EO per mole of alcohol and an average chain length of about 6 to about 15 carbon atoms; iii) and mixtures of these. The nonionic alkyl ethoxylated super humic surfactants are preferably free of propoxy groups. Preferably, the rinse aid compositions of the present invention comprise a cosurfactant. The cosurfactant is not super humid itself (on polypropylene or polystyrene surfaces, in accordance with the tests mentioned above) and is mainly used for two different reasons: i) as a synergist or diluent to minimize the amount of super-moisturizing surfactant needed to achieve total drying; or ii) to suppress the foam in the case of super-wetting surfactants that produce foam. Suitable cosurfactants for the first reason include non-ionic alkylethoxylated / propoxylated surfactants with a degree of ethoxylation greater than the degree of propoxylation and having an average of about 4 to about 9 moles of EO per mole of alcohol, from about 1 to about 4. moles of PO per mole of alcohol and preferably at least about 25%, more preferably at least about 75%, of surfactant with a linear alkyl chain and containing from about 6 to about 15 carbon atoms. Preferably, these cosurfactants have a surface tension of about 35 to about 27 nm / m, according to measurements in a 1% by weight aqueous solution at 20 ° C. Preferably, these cosurfactants are low foaming. Suitable cosurfactants for the second ratio (nonionic foam suppressors) include nonionic surfactants having a low cloud point. Preferably, the cosurfactants have a contact angle (aqueous solution at 0.3%, preferably at 0.03%) of about 17 ° to about 35 °, preferably about 18 ° to about 22 °, on a polypropylene surface. In a preferred embodiment, the composition comprises at least about 10%, preferably at least about 20%, by weight of the composition, of a siloxane super wetting surfactant and a cosurfactant; the super wetting surfactant and the cosurfactant are in a ratio of about 1: 1 to about 1: 5, preferably about 1: 2. A preferred composition according to this embodiment comprises from about 10% to about 40%, preferably from about 20% to about 30% by weight of the composition of a siloxane, especially a methyl trisiloxane super wetting surfactant (and which is preferably practically free of super-moisturizing surfactant other than siloxane) and from about 30% to about 70%, preferably from about 40% to about 60% by weight of the composition of a cosurfactant, preferably a non-ionic alkylethoxylated / propoxylated cosurfactant. In another preferred embodiment, the composition comprises a foam suppressant as a cosurfactant, and the super wetting surfactant and the cosurfactant are in a ratio of about 5: 1 to about 1: 1. A preferred composition according to this embodiment comprises from about 1% to about 10%, preferably from about 2% to about 6% by weight of the composition of a siloxane, especially a super-methyl surfactant methyl trisiloxane; from about 30% to about 70%, preferably from about 40% to about 60% by weight of the composition of a nonionic surfactant superhumectant of ethoxylated alcohol; and from about 10% to about 40%, preferably from about 18% to about 25% by weight of the composition, of a foam suppressant. Preferably, the compositions of the invention further comprise one or more additional ingredients selected from the group comprising organic carriers, antifoaming agents, humectants, dispersants, crystal growth inhibitors and mixtures thereof. Compositions comprising dispersants or inhibitors of crystal growth are especially preferred, because they reduce or prevent the formation of watermarks on dried objects. The compositions of the invention preferably have a pH of from about 6 to about 8, as measured in a 1% by weight aqueous solution at 20 ° C. This is particularly favorable for compositions comprising a siloxane surfactant, since they are not stable at an alkaline or acidic pH. According to another aspect of the invention, a unit dose product comprising at least two phases is provided, wherein one of the phases comprises an auxiliary rinse composition of the invention and means for releasing the composition in the rinse cycle. of a domestic dishwashing machine. Preferably, at least one of the phases that does not comprise the auxiliary rinse composition comprises a main washing detergent for washing the dishes, preferably one containing a dispersant or a crystal growth inhibitor. A method for cleaning tableware or kitchenware in an automatic dishwashing machine is also provided; said method comprises the step of contacting the tableware or kitchenware with an aqueous solution comprising from about 200 ppm to about 450 ppm of the rinse aid composition of the invention during the rinse cycle of a dishwashing machine to provide a total drying. This method allows to obtain a total drying even without the application of heat during the drying cycle, which represents a considerable saving of energy. In addition, the absence of heat in combination with the reduction of the water remaining in the articles after the rinse cycle obtained with this method helps to alleviate the corrosion of glass articles, and in particular those of metal, and the deterioration of the wooden objects. Surprisingly, it has been found that the white spots that are produced on the Teflon surfaces after the dishwashing process are eliminated when the compositions of the invention are used. Moreover, it has been observed that the compositions of the invention provide benefits for the care of glass articles, wood articles and those that include a decorative design.
DETAILED DESCRIPTION OF THE INVENTION The present invention provides auxiliary rinsing compositions and uses of these compositions capable of providing excellent care and finishing to dishwashing load. The compositions provide total drying of the plastic tableware, even without the application of heat during the drying cycle, and also avoid stains on Teflon surfaces, corrosion of metals, deterioration of decorative designs, time they provide care for glass and wood articles. The rinse aid compositions of the invention comprise super-moisturizing and optionally cosurfactant surfactants, organic carriers, foam suppressors, humectants, dispersants, crystal growth inhibitors, conventional rinsing aid ingredients and mixtures thereof. 1. Super-wetting Surfactants The super-moisturizing surfactants for use herein are preferably selected from the group comprising i) polyalkylene oxide-modified siloxane, preferably methyl siloxane surfactants, containing from 1 to about 9, preferably 3 to about 6, and with higher preferably 3 siloxane entities, wherein the polyalkylene oxide residue has the general formula (EO) n (PO) m, wherein n is at least 3 and greater than m; ii) nonionic ethoxylated alcohol surfactants having an average of about 4 to about 9 moles of EO per mole of alcohol and an average chain length of about 6 to about 15 carbon atoms; iii) and mixtures of these. The surfactants belonging to groups i) and ii) are described hereinafter (subsections 1.1 and 1.2, respectively). 1.1 Polyoxyalkylene Siloxane Surfactants The polyoxyalkylene siloxanes suitable for use herein have a polyalkylene oxide residue of formula (EO) n (PO) m, wherein n is at least 3 and greater than m, wherein EO is ethoxy; PO, propoxy; and n and m are average numbers. Preferably, n is from about 3 to about 9, more preferably from about 4 to about 8, and m is from about 0 to about 4, preferably 1. Trisiloxanes are especially preferred. The preferred trisiloxane surfactant for use herein is a modified polyalkylene oxide dimethyl trisiloxane, preferably a linear methyl trisiloxane to which polyethers have been grafted through a hydrosilation reaction. This process results in an alkyl pendant copolymer (AP), in which the polyalkylene oxide groups are attached along the siloxane backbone through a series of hydrolytically stable Si-C bonds. The siloxane surfactants described herein are marketed under the trademark SILWET®, available from Union Carbide, or ABIL® polyether siloxanes available from Goldschmidt Chemical Corp. Preferred siloxanes for use herein are Silwet L77, Silwet L7280, Silwet L7607 and Silwet L7608. Silwet L7280 is particularly preferred for its environmental profile. Other suitable siloxane surfactants are those supplied by Degusa (marketed under numbers 5840, 5847 and 5878), DowComing (marketed under the numbers DC 5211 and DC5212) and Waker (marketed under number LO66). These compounds are also known as polyoxyalkylene siloxane copolymers, siloxane polyethers, polyalkylene oxide silicone copolymers, poly (oxyalkylene) silicone copolymers, silicone glycol copolymers (or surfactants). Preferred polyoxyalkylene methyl siloxane surfactants for use herein have a surface tension of less than about 25 nm / m, preferably less than 22 nm / m, according to measurements in a 1% by weight aqueous solution at 20 ° C. 1.2 Nonionic alcohol ethoxylated surfactants The alkyl ethoxylated condensation products of aliphatic alcohols with an average of about 4 to about 10, preferably from about 5 to about 8 moles of ethylene oxide per mole of alcohol are suitable for use herein. The alkyl chain of the aliphatic alcohol generally contains from about 6 to about 15, preferably from about 8 to about 14, carbon atoms. Particularly preferred are the condensation products of alcohols having an alkyl group containing from about 8 to about 13 carbon atoms, with an average of about 6 to about 8 moles of ethylene oxide per mole of alcohol. Preferably, at least 25%, more preferably at least 75% of the surfactant is a straight chain ethoxylated primary alcohol. It is also preferred that the HLB (hydrophilic-lipophilic balance) of the surfactant be from about 7 to about 13. The products commercially available for use herein include the Lutensol®TO series, ethoxylated C13 oxo alcohol, supplied by BASF, being Lutensol ®T07 especially suitable for use in the present. 2. Cosurfactants The level of cosurfactant in the compositions of the invention is preferably from about 5% to about 70%, preferably from about 10% to about 60%, and more preferably from about 15% to about 55%, in weight of the composition. Preferred cosurfactants for use herein include non-ionic low-foaming surfactants of ethoxylated / propoxylated fatty alcohols and non-ionic surfactants capable of acting as foam suppressors for surfactants that foam more abundantly. 2.1 Nonionic Surfactants of Ethoxylated / Propoxylated Fatty Alcohols Ethoxylated / propoxylated fatty alcohols of C6-C-? 8 are particularly preferred surfactants for use as cosurfactants, especially when they are soluble in water. Preferably, the ethoxylated / propoxylated mixed fatty alcohols have an alkyl chain length of from about 8 to about 18, preferably from about 10 to about 14 carbon atoms, an average degree of ethoxylation of from 3 to 15, preferably from about 4 to about 8, and a degree of propoxylation of about 1 to about 10, preferably about 1 to about 4. Preferred non-ionic ethoxylated / propoxylated fatty alcohol surfactants are the Plurafac surfactants, available from BASF, particularly those of the RA series , specifically Plurafac RA30. 2.2 Nonionic Surfactants Foam Suppressants Nonionic surfactants for use as foam suppressors exhibit a low cloud point. The term "cloud point", as used herein, is a well-known property of non-ionic surfactants which makes the surfactant less soluble by increasing the temperature; the temperature at which the appearance of a second phase can be observed is called "cloud point" (See Kirk Othmer, pp. 360-362). As used herein, a "low cloud point" of a non-ionic surfactant is defined as an ingredient of the nonionic surfactant system having a cloud point of less than 30 ° C, preferably less than 20 ° C, even with more preferably less than 10 ° C and, most preferably, less than about 7.5 ° C. Nonionic surfactants with generally low cloud points include non-ionic alkoxylated surfactants, especially ethoxylates derived from primary alcohols and reverse polymers in polyoxypropylene / polyoxyethylene / polyoxypropylene (PO / EO / PO) blocks. In addition, these low cloud point nonionic surfactants include, for example, ethoxylated-propoxylated alcohols (for example Poly-Tergent® SLF18 from Olin Corporation) and poly (oxyalkylated) alcohols capped with epoxy (for example the Poly nonionic series). -Tergent® SLF18B from Olin Corporation, as described for example in U.S. Patent No. 5,576,281). Other suitable low-cloud point surfactants are poly (oxyalkylated) foam suppressors with ether cap, which have the formula: wherein R1 is a linear alkyl hydrocarbon having an average of about 7 to about 12 carbon atoms, R2 is a linear alkyl hydrocarbon of about 1 to about 4 carbon atoms, R3 is a linear alkyl hydrocarbon of about 1 to about 4 carbon atoms, x is an integer from about 1 to about 6, and is an integer from about 4 to about 15, and z is an integer from about 4 to about 25.
Other non-ionic surfactants with low cloud point are poly (oxyalkylated) surfactants with ether finishing, which have the following formula: R, 0 (R "0) nCH (CH3) OR", where R? is selected from the group comprising straight or branched chain hydrocarbon radicals, saturated or unsaturated, substituted or unsubstituted, aliphatic or aromatic having from about 7 to about 12 carbon atoms; R n may be the same or different and independently is selected from the group comprising branched chain alkylene or linear C 2 to C 7 in a given molecule; n is a number from 1 to 30; and Rm is selected from the group comprising: (i) A substituted or unsubstituted 4 to 8 membered heterocyclic ring containing from 1 to 3 heteroatoms; and (i) linear or branched, saturated or unsaturated, substituted or unsubstituted, cyclic or acyclic, aliphatic or aromatic hydrocarbon radicals containing from about 1 to about 30 carbon atoms; (b) provided that R2 is (ii), then: (A) at least one of the substituents R1 is different from the alkylene C2 to C3; or (B) R2 has from 6 to 30 carbon atoms, and as long as R2 has from 8 to 18 carbon atoms, R is different from a C-to C5 alkyl.
Preferably, when nonionic suds suppressors are used, they are used in a concentration of from about 5% to about 40%, preferably from about 10% to about 35%, and more preferably from about 15% to about 25%, by weight of the composition. 3. Organic carriers The organic carriers are preferably low molecular weight primary or secondary alcohols selected from the group comprising methanol, ethanol, propanol, isopropanol, glycerol, propylene glycol, ethylene glycol, 1,2-propanediol, sorbitol and mixtures thereof. When organic carriers are used, they are used at a level of from about 5% to about 40%, preferably from about 10% to about 35%, and more preferably from about 15% to about 25%, by weight of the composition . 4. Dispersants and Crystal Growth Inhibitors The function of the dispersant is to suspend the inorganic salts in the wash liquor and to minimize its deposit on the dishes. Some dispersants may also act as inhibitors of crystal growth. Suitable for use as dispersants herein are synthesized copolymers of acrylic acid, maleic acid and methacrylic acid such as Acusol 480N supplied by Rohm & Haas, and polymers containing carboxylate and sulfonate monomers such as Alcosperse polymers (supplied by Aleo). Preferred crystal growth inhibitors for use herein include organophosphonic acids. In this description, the term organodiphosphonic acid refers to an organodiphosphonic acid whose chemical structure does not contain nitrogen. Therefore, this definition excludes organo-aminophosphonates, which however can be included in the compositions of the invention as sequestering components of heavy metal ions. The organodiphosphonic acid is preferably a C- | -C4 diphosphonic acid, more preferably a C2 diphosphonic acid, such as ethylene diphosphonic acid or, more preferably, 1-hydroxy-1-ethane-1-diphosphonic acid (HEDP) and it can be present partially or totally ionized, especially as a salt or complex. 5. Antifoaming Silicone Agents Suitable anti-foam agents can be selected from the group comprising silicone-based antifoams, especially conventional antifoam agents of inorganically charged polydimethylsiloxane, particularly silica-loaded polydimethylsiloxane antifoam agents, as set forth in US Pat. UU no. 4,639,489 and no. 3,455,839. These and other suitable antifoam agents are commercially available under the trade names of Silcolapse 431 and Silicone EP 6508 from ICI United States Inc., Wilmington, Delaware, USA.; Rhodosil 454 from Rhone-Poulenc Chemical Co., Monmouth Junction, New Jersey, USA; and Silkonol AK 100, commercially available from Wacker-Chemie G.m.b.H., Munich, Federal Republic of Germany. 6. Moisturizers A humectant is a substance that can take moisture or emit it to the environment depending on the relative humidity of it. Suitable humectants for use herein include non-aqueous hydrophilic organic solvents including glycols and polyhydric alcohols, for example sorbitol, glycerol, dipropylene glycol and mixtures thereof. In a preferred embodiment of the present invention, the rinse composition forms part of a multiple phase unit dose product, preferably a two compartment water soluble bag, wherein one of the phases preferably comprises a main wash detergent composition . Preferred compositions and methods of manufacture for unit dose modalities are described in WO 02/42408. Any water-soluble film-forming polymer that is compatible with the compositions of the invention and which allows the delivery of the composition in the rinse cycle can be employed in the unit dose mode. The film must remain intact during the wash cycle and dissolve only at the beginning of or during the rinse cycle. This can be achieved by changing the thickness of the film or the solubility of the film material. The solubility of the film material can be retarded by, for example, the crosslinking of the film, as described in WO 02/102955, p. 17 and 18.
Other water soluble films designed to release rinses are described in U.S. Pat. no. 4,765,916.
EXAMPLES In the following examples, the compositions are cited as a percentage by weight of the composition: Trisiloxane surfactant, available from OSi Specialties Alcohol exoxylated C13 oxo, available from BASF Alcohol alkoxylate, available from BASF Trisiloxane surfactant, available from Dow Corning Low cloud point nonionic surfactant, available from Olin Corp Alkoxylated fatty alcohol nonionic surfactant, available of BASF Dipropylene glycol In a GE 500 dishwasher, a load was placed comprising 3 glasses of wine, 1 glass with decorative designs, 1 glass of daily use, 1 large plastic jug, 1 black plate, 1 large plastic lunch box, 1 small lunch box plastic, 1 metal spoon to serve. The water temperature was stabilized at 37-50 ° C with a tank system before pumping it into the dishwasher. The total dishwashing process was approximately 60 minutes ("normal" cycle) and the heat option of the drying cycle was deactivated. 50 grams of Cascade powder (available from Procter and Gamble) was used for the main wash and 2 mL of the rinse aid composition of Example 1 was supplied in the rinse cycle from the rinse aid receptacle. After the end of the drying cycle, the items were left in the dishwasher for 5 minutes and then evaluated. Total drying was observed, the articles showed no watermarks and were very bright. When using compositions 2 to 7, similar results can be observed.

Claims (10)

NOVELTY OF THE INVENTION CLAIMS
1. A practically non-aqueous concentrated rinse aid composition for the drying without heat application of plastic ware and other ware washing articles; the composition comprises at least 20% by weight of one or more super-moisturizing surfactants.
2. The composition according to claim 1, further characterized in that the super-moisturizing surfactant is selected from the group comprising: i) polyoxyalkylene siloxanes, wherein the polyalkylene oxide residue has the general formula (EO) n (PO) m, where n is at least about 3 and greater than m; I) nonionic ethoxylated alcohols with an average of about 4 to about 10 moles of EO per mole of alcohol and an average chain length of about 6 to about 15 carbon atoms; Ii) and mixtures of these.
3. The composition according to claim 1 or 2, further characterized in that it additionally comprises a cosurfactant which is not super moisturizing. The composition according to claim 2 or 3, further characterized in that the super wetting surfactant comprises at least 10% by weight of the composition of the siloxane surfactant, and wherein the super wetting surfactant and the cosurfactant are in a ratio of about 1: 1 to approximately 1: 5. The composition according to claim 2 or 3, further characterized in that the cosurfactant is a foam suppressant, and the super wetting surfactant and the cosurfactant are in a ratio of about 5: 1 to about 1: 1. The composition according to any of the preceding claims, further characterized in that it additionally comprises one or more additional ingredients selected from the group comprising organic carriers, antifoaming agents, humectants, dispersants, crystal growth inhibitors and mixtures thereof. The composition according to any of the preceding claims, further characterized in that it has a pH of from about 6 to about 8 as measured in a 1% by weight aqueous solution at 20 ° C. 8. A unit dose product comprising at least two phases, wherein one phase comprises a composition as defined in any of the preceding claims and means for releasing the composition in the rinse cycle of a dishwashing machine. 9. A method for cleaning tableware or kitchenware in an automatic dishwashing machine; The method comprises the step of contacting tableware or kitchenware with an aqueous solution comprising from about 200ppm to about 450ppm of the composition as defined in any of claims 1 to 5 during the rinsing cycle. a dishwasher to provide total drying. 10. The use of a composition as defined in any of claims 1 to 5 in an automatic dishwashing machine to prevent staining on Teflon surfaces, corrosion of metals, deterioration of decorative designs, and to provide care for articles of glass and wood.
MXPA/A/2006/007460A 2003-12-29 2006-06-28 Rinse-aid composition MXPA06007460A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03029914 2003-12-29
EP04257478 2004-12-01

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MXPA06007460A true MXPA06007460A (en) 2006-10-17

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