Cleaning product

Abstract

To provide a cleaning product comprising a spray dispenser and a cleaning composition, which enables effective removal of crystalline fats without compromising the stability and functionality of the spray detergent, especially at more neutral pH.SOLUTION: The foregoing problem is solved by formulating a spray cleaning composition using alkyl polyglucoside nonionic surfactants and little or no anionic surfactants, in combination with at least two glycol ether solvents.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a cleaning product including a spray dispenser and cleaning composition that improves cleaning of crystalline grease while also being more stable. [Background technology]

[0002] Dishwashing detergents have long been used to facilitate the removal of grease, oils, and crystalline fats from cookware, dishes, and kitchen utensils. Conventional dishwashing detergents are generally available in liquid form and are effective in removing a wide range of food residues.

[0003] In recent years, there has been an increasing demand for convenient and efficient dishwashing products that provide a fast and effective cleaning solution. In response to this demand, dishwashing detergent sprays have gained popularity as a convenient and time-saving alternative to traditional dishwashing methods. Hand dishwashing detergent sprays typically consist of a liquid detergent composition contained in a container with a manually activated spray nozzle. When the nozzle is activated, the detergent is dispensed as a fine mist or spray, allowing for targeted application to the soiled dish surface. The user can then scrub the treated surface to loosen and remove food residues. However, to improve convenience and efficiency, it is desirable for the spray composition to solubilize and "lift off" greasy soils with little or no scrubbing required.

[0004] Dishwashing detergent sprays offer convenience and ease of use, but face challenges when it comes to effectively removing crystalline fats. Crystalline fats, such as beef, lard, and other animal fats, can be particularly stubborn and difficult to remove. The surface tension and adhesive properties of crystalline fats make them resistant to regular dishwashing detergents, resulting in incomplete or unsatisfactory cleaning or requiring more manual labor. Compositions containing high concentrations of anionic surfactants, such as alkyl ethoxylated sulfate surfactants, are particularly effective at removing liquid greasy soils. However, over-spray of such anionic-rich compositions is likely to cause nasal and eye irritation. Spray detergent compositions can be formulated to be nonionic-rich, with limited or no anionic surfactants, resulting in a spray that is less irritating to the nasal passages and eyes. However, such compositions have a significantly reduced ability to lift crystalline fats with little or no scrubbing.

[0005] To address this issue, dishwashing detergent sprays are formulated with solvents to aid in the removal of crystalline fats. Hydrophobic solvents such as tripropylene glycol n-butyl ether are particularly effective at dissolving and dispersing fat molecules, making them easier to remove with little or no scrubbing.

[0006] Such solvents are particularly effective in removing crystalline fats, but are difficult to stably formulate into detergent compositions, especially those for hand dish spray applications that have low viscosity and relatively low surfactant concentrations. Such hydrophobic solvents can affect the viscosity, surface tension, and emulsion stability of the detergent formulation, causing phase separation, settling, or reduced shelf life. A less stable detergent spray composition can result in poor performance, poor spray pattern, nozzle clogging, or limited shelf life, which can limit the commercial viability and consumer acceptance of such products. Hydrophobic solvents can be solubilized by the use of co-solvents. However, such co-solvents are typically found to reduce the effectiveness of the hydrophobic solvent.

[0007] By formulating spray detergent compositions to be rich in nonionic surfactants, especially alkyl polyglucosides, while limiting the level of anionic surfactants, the removal of non-crystalline greasy and oily residues can be improved.However, it is even more difficult to stably formulate hydrophobic solvents such as tripropylene glycol n-butyl ether when the detergent composition contains only low levels or no anionic surfactants.

[0008] Typically, high pH is used to improve grease removal efficacy, however, high pH is typically detrimental to perfume stability since many perfume ingredients have poor chemical or physical stability at high pH.

[0009] Therefore, there is a need for improved dishwashing detergent spray compositions that effectively remove crystalline fats, particularly at more neutral pH, without compromising the stability and functionality of the spray detergent, and that provide a spray overflow that is less irritating to the nasal passages and eyes.

[0010] EP 4124651(A) relates to a cleaning product comprising a spray dispenser and a cleaning composition contained within the spray dispenser. The cleaning composition comprises from about 5% to about 25% by weight of the composition of a surfactant system. The surfactant system comprises an alkyl polyglucoside surfactant, a co-surfactant selected from a zwitterionic surfactant, an amphoteric surfactant, or a mixture thereof, and less than about 3% by weight of the cleaning composition of an anionic surfactant. The alkyl polyglucoside surfactant and the co-surfactant are present in a weight ratio of from about 10:1 to about 1:2. The cleaning composition further comprises from about 0.1% to about 10% by weight of the composition of an organic solvent. The pH of the composition is less than about 8, more preferably from about 3 to about 7, and most preferably from about 4 to about 6, measured neat at 20°C. WO2021126643(A) relates to a cleaning product comprising a spray dispenser and a cleaning composition contained therein that improves cleaning of crystalline greases and provides good initial foaming, thus reducing the time to clean dishes. The cleaning composition comprises an alkyl polyglucoside surfactant, a co-surfactant selected from amphoteric surfactants, zwitterionic surfactants, and mixtures thereof, and an organic solvent.

[0011] US Patent No. 5,929,007 (A) relates to an alkaline aqueous hard surface cleaning composition for cleaning hardened, dried or baked on greasy soil deposits. US Patent No. 5,786,319 (A) relates to a concentrated detergent formulation effective for removing grease, comprising a glycol ether solvent system in combination with a highly concentrated surfactant system stably dispersed in water. US Patent Application Publication No. 20030069152 (A1) relates to a cleaning and degreasing agent that can save energy, shorten cleaning time, and exhibit good cleaning and degreasing capabilities without changing the system used and without compromising the raw materials. US Patent No. 8,299,012 (B2) relates to a hard surface treatment composition comprising (preferably consisting essentially of, even more preferably consisting of) the following components: a detersive anionic surfactant, a detersive nonionic surfactant, an alkyl glycol ether solvent, a phenyl-containing glycol ether solvent, an organic acid, preferably selected from citric acid, lactic acid, and mixtures thereof, optionally but preferably a film-forming polymer based on a quaternized copolymer of vinylpyrrolidone and dimethylaminoethyl methacrylate, optionally one or more further components that may improve the aesthetic or functional characteristics of the composition, and water.

[0012] EP 3118301(B1) relates to cleaning products, in particular to cleaning products comprising a spray dispenser and a cleaning composition for making dishwashing easier and faster. JP 2016198765 relates to a high foaming cleaning method for tableware, in particular for removing oil from hard or inaccessible parts of the tableware. WO 2017204149(A1) relates to detergent compositions that exhibit excellent cleaning properties against oily soils containing solid fats attached to hard surfaces including tableware, which can be applied to the hard surfaces via a spray. WO 2017204148(A1) relates to a method for cleaning tableware without applying mechanical force, which is carried out by contacting tableware having oily stains such as solid fat stains with a liquid detergent composition containing 1% by weight or more of a surfactant, 1% by weight or more of a chelating agent, and water, the weight ratio of the surfactant to the chelating agent being 0.25 or more, and the liquid detergent composition having a conductivity of 0.70 S / m or more at 25° C. JP 2017210577(A) relates to a liquid detergent composition for tableware that has excellent low-temperature stability and can sufficiently clean oily stains including solid fats attached to the surface of tableware without applying mechanical force by applying the liquid detergent composition containing a branched anionic surfactant, a glycol solvent having 2 to 12 carbon atoms, and water without rubbing with a flexible material such as a sponge, and for example, via a spray. JP2017210576(A) relates to a liquid detergent composition for hard surfaces, including tableware, having excellent cleaning properties against oily stains including solid fats attached to plastic hard surfaces, and a method for cleaning hard surfaces using the composition, the composition comprising a sulfosuccinate ester or a salt thereof, an anionic surfactant comprising a hydrocarbon group having 8 to 21 carbon atoms and a sulfate ester group or a sulfonic acid group, a specific nonionic surfactant, and water.WO2017110773(A) relates to a liquid detergent composition for hand washing of dishes, including tableware, having excellent cleaning properties against oily stains, the composition comprising a sulfosuccinate or salt thereof, a further anionic surfactant having a hydrocarbon group having 8 to 21 carbon atoms and a sulfate ester group or a sulfonic acid group, an amphoteric surfactant, and water. WO2016110827(A1) relates to a detergent solution for cleaning containers for milk or liquid milk-derived products, which can be applied as a spray, the detergent solution comprising water, one or more surfactants, and an odor-absorbing compound, the surfactant dissolves the greasy residues from the milk from the container, and the odor-absorbing compound neutralizes the odors resulting from the remaining milk-derived residues that are not removed by the surfactant. WO 2017011191(A1) relates to a cleaning product comprising a spray dispenser and a cleaning composition contained in the spray dispenser, the composition comprising 5% to 15% by weight of the composition of a surfactant system, the surfactant composition comprising ii. 40% to 90% by weight of the surfactant system of a nonionic surfactant, 10 to 60% by weight of the surfactant system of a co-surfactant selected from anionic, amphoteric, zwitterionic, and mixtures thereof, and a glycol ether solvent. US 20070179079(A) and US 20060009369(A) relate to cleaning compositions comprising a cationic biocide and adapted to clean a variety of hard surfaces, the cleaning composition may be applied via an impregnated material or dispensed or sprayed as a liquid from a container, or as a liquid crystal, powder, paste, or other semi-solid or solid form from a container. US Patent Publication No. 20190055500(A) relates to antimicrobial hard surface cleaning compositions that provide good antimicrobial efficacy even at low concentrations of antimicrobial agents while also improving surface gloss. US Patent Publication No. 20100160201(A) relates to cleaning compositions having a limited number of hydrophobic syndetic, hydrophilic syndetic, and natural ingredients, including biguanides or cationic quaternary ammonium salts, that can be used to clean laundry, soft surfaces, and hard surfaces.US Patent Publication No. 20180002636(A) relates to a detergent solution for cleaning containers of milk or milk-derived liquid products, the detergent solution comprising water, one or more types of surfactants, and an odor absorbing compound, the surfactants being provided to dissolve dairy-based greasy residues from the container.EP Patent Nos. 3418357(A), 3418358(A), and 3418356(A) relate to compositions that reduce or prevent irritation and / or stinging of a user's skin, eyes, nose, throat, or combinations thereof upon contact with a cleaning product when sprayed. US Patent No. 6,159,924(A) relates to an aqueous cleaning composition simultaneously characterized by disinfection, low residue deposition and good cleaning properties, comprising one or more quaternary amine compounds as disinfectant active agents, an organic solvent system, one or more amine oxides, one or more non-ionic alkyl polyglycosides, water, and optionally further conventional additives including pH buffers, dyes, fragrances, etc. [Prior art documents] [Patent documents]

[0013] [Patent Document 1] European Patent No. 4124651(A) [Patent Document 2] International Publication No. 2021126643(A) [Patent Document 3] U.S. Patent No. 5,929,007(A) [Patent Document 4] U.S. Patent No. 5,786,319(A) [Patent Document 5] U.S. Patent Application Publication No. 20030069152(A1) [Patent Document 6] US Patent No. 8299012(B2) [Patent Document 7] European Patent No. 3118301(B1) [Patent Document 8] Patent Publication No. 2016198765 [Patent Document 9] International Publication No. 2017204149(A1) [Patent Document 10] International Publication No. 2017204148(A1) [Patent Document 11] Patent Publication No. 2017210577(A) [Patent Document 12] Patent Publication No. 2017210576(A) [Patent Document 13] International Publication No. 2017110773(A) [Patent Document 14] International Publication No. 2016110827(A1) [Patent Document 15] International Publication No. 2017011191(A1) [Patent Document 16] U.S. Patent Application Publication No. 20070179079(A) [Patent Document 17] U.S. Patent Application Publication No. 20060009369(A) [Patent Document 18] U.S. Patent Application Publication No. 20190055500(A) [Patent Document 19] U.S. Patent Application Publication No. 20100160201(A) [Patent Document 20] U.S. Patent Application Publication No. 20180002636(A) [Patent Document 21] European Patent No. 3418357(A) [Patent Document 22] European Patent No. 3418358(A) [Patent Document 23] European Patent No. 3418356(A) [Patent Document 24] U.S. Patent No. 6,159,924(A) Summary of the Invention [Means for solving the problem]

[0014] The present invention relates to a cleaning product comprising a spray dispenser and a cleaning composition, the composition being contained in a spray dispenser, the cleaning composition comprising from 2% to 25%, by weight of the composition, of a surfactant system comprising an alkyl polyglucoside surfactant; a co-surfactant selected from an amphoteric surfactant, a zwitterionic surfactant, and mixtures thereof; and less than 3%, by weight of the cleaning composition, of an anionic surfactant; and a glycol ether solvent having the formula (I): R 1 O(R 2 O)3R 3 (In the formula, R 1 is a straight or branched C4, C5, or C6 alkyl or substituted or unsubstituted phenyl; R 2 is ethyl or propyl, R 3 is hydrogen or methyl), and a glycol ether solvent of formula (II): R 4 O(R 5 O)3R 6 (In the formula, R 4 is methyl or ethyl, R 5 is ethyl or propyl, R 6 wherein R is hydrogen or methyl, and wherein the composition comprises 1.0% to 15% by weight of the total composition of the glycol ether solvent, and the composition comprises glycol ether solvent of formula (I) and glycol ether solvent of formula (II) in a weight ratio of less than 2.5:1. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] The need for a cleaning product, including a spray dispenser and a cleaning composition, that improves cleaning of crystalline grease without compromising the stability of the formulation is met by formulating a cleaning composition comprising a surfactant system, including an alkyl polyglucoside surfactant and a co-surfactant that is an amphoteric surfactant and / or a zwitterionic surfactant, in combination with a solvent system, while limiting the amount of anionic surfactant present, as described herein. Such a cleaning composition has been found to better improve the softening of crystalline grease and thus aid in its removal from the dishware items being treated. Moreover, because the detergent composition is contained in a spray container, the composition can be applied evenly to the surface of the items and left for a period of time to further lift the crystalline grease as part of a pre-treatment step before the main washing step.

[0016] The present invention relates to a cleaning product, which is a hand dishwashing cleaning product, the product comprising a spray dispenser and a cleaning composition, the cleaning composition being contained in the spray dispenser.

[0017] For purposes of this invention, "dishware" includes any article used for preparing or serving and eating food.

[0018] By "spray dispenser" is meant herein a container that includes a housing for containing a composition and a means for spraying the composition. A preferred spraying means is a trigger spray. The compositions used in the present invention foam when sprayed onto the surface to be treated.

[0019] Cleaning composition: The cleaning composition is preferably a hand dishwashing cleaning composition, preferably in liquid form. The cleaning composition is suitable for spraying.

[0020] The pH of the composition may be 6 or greater, more preferably 6 to 12, and most preferably 6.5 to 8.0, measured undiluted at 20°C. Typically, a higher pH is desired to improve the removal of liquid grease. However, the more neutral pH of the present composition has been found to improve the removal of crystalline grease, especially when scrubbing is limited. Additionally, perfume compositions are typically less stable at higher pHs, and therefore formulating the composition using a more neutral pH can improve the perfume odor.

[0021] A cleaning product according to the present invention may comprise a composition having a Newtonian viscosity at 20°C, measured using the method defined herein, of for example from 1 mPa·s to 50 mPa·s, preferably from 1 mPa·s to 20 mPa·s, more preferably from 1 mPa·s to 10 mPa·s.

[0022] Alternatively, the cleaning product according to the present invention may comprise a composition having a shear thinning rheological profile, for example a shear thinning rheological profile of 1000 s at 20° C. -1 and may have a high shear viscosity of from 1 mPa s to 50 mPa s, preferably from 1 mPa s to 20 mPa s, more preferably from 5 mPa s to 15 mPa s, when measured at a shear rate of 0.1 s at 20° C. using the method defined herein. -1 When measured at 100° C., the composition has a low shear viscosity of 100 mPa·s to 1,000 mPa·s, and preferably 200 mPa·s to 500 mPa·s.

[0023] Preferably, the cleaning compositions used in the present invention have a Newtonian viscosity.

[0024] The liquid cleaning composition typically comprises an aqueous carrier in which all other active ingredients are dissolved or ultimately dispersed, with water being present in an amount of from 60% to 90%, preferably from 75% to 85% by weight of the composition.

[0025] The liquid cleaning composition comprises a surfactant system and a glycol ether solvent system.

[0026] The surfactant system and glycol ether solvent are preferably present in a weight ratio of 3:1 to 1:3, preferably 1.5:1 to 1:2, most preferably 1:1 to 1:1.5. Compositions used in the present invention having such weight ratios of surfactant system to glycol ether solvent have been found to improve dishware coverage while minimizing overspray (residual spray droplets that remain dispersed in the air). Thus, such spray compositions reduce waste and minimize the amount of spray droplets that can be inhaled.

[0027] Surfactant system: The composition comprises from 2% to 20%, preferably from 3% to 15%, more preferably from 3.5% to 8.0% by weight of the composition of a surfactant system. The surfactant system comprises an alkyl polyglucoside surfactant. The surfactant system comprises a co-surfactant selected from the group consisting of amphoteric surfactants, zwitterionic surfactants, and mixtures thereof, preferably selected from amphoteric surfactants, more preferably selected from amine oxide surfactants. The alkyl polyglucoside surfactant and the co-surfactant may be present in a weight ratio of from 10:1 to greater than 1:10, preferably from 5:1 to 1:5, most preferably from 2:1 to 1:2.

[0028] Alkyl polyglucoside surfactants: The surfactant system preferably comprises an alkyl polyglucoside ("APG") at a concentration of from 0.5% to 10%, preferably from 1.0% to 5.0%, more preferably from 1.5% to 3.0% by weight of the composition.

[0029] For purposes of improved crystalline fat removal, the alkyl polyglucoside surfactants may have a number average alkyl carbon chain length of 8 to 18, preferably 10 to 16, most preferably 12 to 14, with an average degree of polymerization of 0.1 to 3.0, preferably 1.0 to 2.0, most preferably 1.2 to 1.6.

[0030] To improve initial foaming, the alkyl polyglucoside surfactant may have a number average alkyl carbon chain length of 8 to 18, preferably 8 to 14, most preferably 8 to 10, with an average degree of polymerization of 0.1 to 3.0, preferably 1.0 to 2.0, most preferably 1.2 to 1.6.

[0031] C8-C18 alkyl polyglucosides are commercially available from several sources (e.g., Simusol® surfactants from Seppic Corporation; and Glucopon® 600CSUP, Glucopon® 650EC, Glucopon® 600CSUP / MB, and Glucopon® 650EC / MB from BASF Corporation).

[0032] Co-surfactant: The co-surfactant is selected from the group consisting of amphoteric surfactants, zwitterionic surfactants, and mixtures thereof. The cleaning composition may comprise the co-surfactant at a level of from 0.5 to 7.5%, preferably from 1.0% to 5.0%, more preferably from 1.5% to 3.0%, by weight of the composition.

[0033] Amphoteric surfactants: As mentioned above, amine oxide surfactants are preferred for use as co-surfactants. The amine oxide surfactants may be linear or branched, with linear being preferred. Suitable linear amine oxides are typically water-soluble and characterized by the formula R1-N(R2)(R3)O, where R1 is a C8-18 alkyl and the R2 and R3 moieties are selected from the group consisting of C1-3 alkyl groups, C1-3 hydroxyalkyl groups, and mixtures thereof. For example, R2 and R3 may be selected from the group consisting of methyl, ethyl, propyl, isopropyl, 2-hydroxyethyl, 2-hydroxypropyl, and 3-hydroxypropyl, and mixtures thereof, with one or both of R2 and R3 being preferably methyl. Linear amine oxide surfactants may include, inter alia, linear C10-C18 alkyl dimethyl amine oxides and linear C8-C12 alkoxyethyl dihydroxyethyl amine oxides.

[0034] Preferably, the amine oxide surfactant is selected from the group consisting of alkyl dimethylamine oxide, alkyl amidopropyl dimethylamine oxide, and mixtures thereof. Preferred are alkyl dimethylamine oxides such as C8-18 alkyl dimethylamine oxide or C10-16 alkyl dimethylamine oxide (such as cocodimethylamine oxide). Suitable alkyl dimethylamine oxides include C10 alkyl dimethylamine oxide surfactants, C10-12 alkyl dimethylamine oxide surfactants, C12-C14 alkyl dimethylamine oxide surfactants, and mixtures thereof. Particularly preferred are C12-C14 alkyl dimethylamine oxides.

[0035] Alternative suitable amine oxide surfactants include mid-branched amine oxide surfactants. As used herein, "mid-branched" means that the amine oxide has one alkyl moiety with n1 carbon atoms, and one alkyl branch in the alkyl moiety has n2 carbon atoms. The alkyl branch is located on the alpha carbon from the nitrogen on the alkyl moiety. This type of branching of amine oxides is also known in the art as internal amine oxides. The sum of n1 and n2 may be 10-24, preferably 12-20, more preferably 10-16 carbon atoms. The number of carbon atoms in one alkyl moiety (n1) is preferably the same or similar to the number of carbon atoms in one alkyl branch (n2), thereby providing symmetry between the one alkyl moiety and the one alkyl branch. As used herein, "symmetric" means that in at least 50% by weight, more preferably at least 75% to 100% by weight of the mid-branched amine oxides used herein, |n1-n2| is 5 or less, preferably 4, and most preferably 0 to 4 carbon atoms. The amine oxide further comprises two moieties independently selected from a C1-3 alkyl, a C1-3 hydroxyalkyl group, or a polyethylene oxide group containing an average of about 1 to about 3 ethylene oxide groups. Preferably, these two moieties are selected from a C1-3 alkyl, more preferably both are selected as a C1 alkyl.

[0036] Alternatively, the amine oxide surfactant may be a mixture of amine oxides, including a mixture of low cut and mid cut amine oxides. Thus, the amine oxide of the composition of the present invention may be: a) about 10% to about 45% by weight of an amine oxide of a low cut amine oxide of formula R1R2R3AO, where R1 and R2 are independently selected from hydrogen, C1-C4 alkyl, or mixtures thereof, and R3 is selected from C10 alkyl and mixtures thereof; b) 55% to 90% by weight of the amine oxide, a mid-cut amine oxide of formula R4R5R6AO, where R4 and R5 are independently selected from hydrogen, C1 to C4 alkyl, or mixtures thereof, and R6 is selected from C12 to C16 alkyl, or mixtures thereof.

[0037] In the low cut amine oxides preferred for use herein, R3 is n-decyl, and preferably R1 and R2 are both methyl. In the mid cut amine oxides of formula R4R5R6AO, preferably R4 and R5 are both methyl.

[0038] Preferably, the amine oxide comprises less than about 5% by weight of the amine oxide, more preferably less than 3% by weight of the amine oxide of formula R7R8R9AO, where R7 and R8 are selected from hydrogen, C1-C4 alkyl, and mixtures thereof, and R9 is selected from C8 alkyl, and mixtures thereof. By limiting the amount of amine oxide of formula R7R8R9AO, both physical stability and suds persistence are improved.

[0039] Zwitterionic surfactants: The use of zwitterionic surfactants as co-surfactants in the compositions of the present invention has been found to improve the removal of polymerized or "burned-on" grease. Suitable zwitterionic surfactants include betaine surfactants. Such betaine surfactants include alkyl betaines, alkyl amido betaines, amido azolinium betaines, sulfo betaines (INCI sultaines), and phospho betaines, such surfactants preferably satisfying formula (II): R 1 -[CO-X(CH2) n ] x -N + (R 2 )(R3)-(CH2) m -[CH(OH)-CH2] y -Y - In formula (II), R1 is selected from the group consisting of saturated or unsaturated C6-22 alkyl residues, preferably C8-18 alkyl residues, more preferably saturated C10-16 alkyl residues, and most preferably saturated C12-14 alkyl residues; X is selected from the group consisting of NH, NR4 (wherein R4 is a C1-4 alkyl residue), O, and S; n is an integer of 1 to 10, preferably 2 to 5, and more preferably 3; x is 0 or 1, preferably 1; R2 and R3 are independently selected from the group consisting of C1-4 alkyl residues, substituted hydroxy such as hydroxyethyl, and mixtures thereof, preferably both R2 and R3 are methyl; m is an integer from 1 to 4, preferably 1, 2, or 3; y is 0 or 1; Y is selected from the group consisting of COO, SO3, OPO(OR5)O, or P(O)(OR5)O, where R5 is H or a C1-4 alkyl residue.

[0040] Preferred betaines are the alkyl betaines of formula (Ia), the alkyl amidopropyl betaines of formula (Ib), the sulfo betaines of formula (Ic) and the amido sulfo betaines of formula (Id):

[0041] [ka] In the formula, R1 has the same meaning as in formula (II). Particularly preferred are the carbobetaines of formulas (Ia) and (Ib) [i.e., in formula (II), Y- is COO-], and more preferred are the alkylamidobetaines of formula (Ib).

[0042] Suitable betaines may be selected from the group consisting of capryl / capramidopropyl betaine, cetyl betaine, cetylamidopropyl betaine, cocamidoethyl betaine, cocamidopropyl betaine, coco betaine, decyl betaine, decylamidopropyl betaine, hydrogenated tallow betaine / amidopropyl betaine, isostearamidopropyl betaine, lauramidopropyl betaine, lauryl betaine, myristyl amidopropyl betaine, myristyl betaine, oleadopropyl betaine, oleyl betaine, palmamidopropyl betaine, palmitamidopropyl betaine, palm kernelamidopropyl betaine, stearamidopropyl betaine, stearyl betaine, tallowamidopropyl betaine, tallow betaine, undecylenamidopropyl betaine, undecyl betaine, and mixtures thereof, or [named according to INCI]. Preferred betaines are selected from the group consisting of cocamidopropyl betaine, coco betaine, lauramidopropyl betaine, lauryl betaine, myristyl amidopropyl betaine, myristyl betaine, and mixtures thereof. Cocamidopropyl betaine is particularly preferred.

[0043] Anionic surfactants: When the detergent composition contains an anionic surfactant, suitable anionic surfactants include, but are not limited to, surface-active compounds that contain an organic hydrophobic group, generally containing 8 to 22 carbon atoms or generally 8 to 18 carbon atoms in its molecular structure, and at least one water-soluble group, preferably selected from sulfonate, sulfate, and carboxylate, to form a water-soluble compound. Typically, the hydrophobic group contains a linear or branched C8 to C22 alkyl or acyl group. Such surfactants are used in the form of water-soluble salts, with the salt-forming cations typically selected from sodium, potassium, ammonium, magnesium, and mono-, di-, or tri-alkanolammonium, and the cation usually selected is sodium.

[0044] Anionic surfactants are not preferred in the compositions used in the present invention, so the surfactant system comprises less than 3.0%, preferably less than 2.0%, more preferably less than 1.0% anionic surfactant by weight of the detergent composition. Most preferably, the detergent composition according to the present invention does not comprise anionic surfactants.

[0045] Further non-ionic surfactants: The surfactant system may further comprise a non-ionic surfactant. If present, the surfactant system may comprise from 0.5% to 12%, preferably from 1.0% to 7.0%, more preferably from 2.0% to 6.0% by weight of the composition of a further non-ionic surfactant.

[0046] Further suitable nonionic surfactants include alkyl alkoxylated nonionic surfactants, more preferably ethoxylated nonionic surfactants.Suitable nonionic surfactants include condensation products of aliphatic alcohols with 1 to 25 moles of ethylene oxide.The alkyl chain of the aliphatic alcohol may be linear or branched, substituted or unsubstituted, preferably linear.

[0047] The further non-ionic surfactant is preferably a low cut alkyl ethoxylate surfactant. Low cut alcohol ethoxylate surfactants include alcohol ethoxylate surfactants having an average alkyl carbon chain length of C10 or less. More preferably, the alkyl ethoxylate surfactant has an average alkyl chain length of C5 to C8, preferably C5 to C7, and a number average degree of ethoxylation of 1 to 10, preferably 3 to 8, more preferably 4 to 6. Suitable non-ionic alcohol ethoxylate surfactants include commercially available materials such as Emulan® HE50 or Lutensol® CS6250 (available from BASF).

[0048] Other suitable nonionic surfactants for use herein may be selected from fatty alcohol polyglycol ethers, fatty acid glucamides, and mixtures thereof.

[0049] Most preferably, the surfactant system comprises an alkyl polyglucoside surfactant, an amine oxide surfactant, and an alkyl ethoxylate surfactant, especially a low cut alcohol ethoxylate surfactant, as previously described.

[0050] Other surfactants: The composition used in the present invention is preferably free of cationic surfactants, especially free of antibacterial cationic surfactants, because such surfactants are typically detrimental to grease cleaning and surface gloss.Such antibacterial cationic surfactants include quaternary ammonium compounds, such as dodecyl dimethyl ammonium chloride, alkyl dimethyl benzyl ammonium chloride, alkyl dimethyl ethyl benzyl ammonium chloride, and mixtures thereof.

[0051] Glycol Ether Solvents: The glycol ether solvent combinations described herein have been found to be particularly effective when used in combination with alkyl polyglucosides to provide a stable composition while removing crystalline fat even at more neutral pH. Specifically, the composition comprises a glycol ether solvent, which comprises: a. Formula (I): R 1 O(R 2 O)3R 3 (In the formula, R 1 is a straight or branched chain C4, C5, or C6 alkyl or substituted or unsubstituted phenyl; R 2 is ethyl or propyl, e.g., isopropyl; R 3 is hydrogen or methyl), and b.Formula (II):R 4 O(R 5 O)3R 6 (In the formula, R4 is methyl or ethyl, R 5 is ethyl or propyl, e.g., isopropyl; R 6 is hydrogen or methyl).

[0052] The glycol ether solvents of formula (I) are particularly effective in removing crystalline fats from dishes with little or no scrubbing. Such solvents are believed to be effective in removing such crystalline fats because they are hydrophobic. However, the hydrophobic nature of such solvents makes them difficult to formulate into aqueous detergent compositions, especially aqueous detergent compositions suitable for spraying, because such compositions typically have low viscosities and relatively low concentrations of surfactants. Furthermore, they are typically less stable in compositions that contain low or no anionic surfactants. For such solvents, a co-solvent is typically required in the composition to stably formulate the solvents of formula (I). However, it has been found that solubilizing the solvents of formula (I) reduces their effectiveness in removing crystalline fats from dishes.

[0053] In the present invention, the glycol ether solvent of formula (II) is incorporated into the formulation to stably formulate the glycol ether solvent of formula (I), but the effect of the solvent on the fat removal efficacy is negligible.

[0054] In the glycol ether solvent of formula (I), aR 1 is preferably linear or branched C4 or C5, preferably linear or branched C4, more preferably linear butyl; bR 2 is preferably propyl, more preferably isopropyl; cR 3 is preferably hydrogen.

[0055] Suitable glycol ether solvents according to formula (I) include triethylene glycol n-butyl ether, triethylene glycol isobutyl ether, triethylene glycol n-pentyl ether, triethylene glycol isopentyl ether, triethylene glycol n-hexyl ether, triethylene glycol isohexyl ether, triethylene glycol phenyl ether, tripropylene glycol n-butyl ether, tripropylene glycol isobutyl ether, tripropylene glycol n-pentyl ether, tripropylene glycol isopentyl ether, tripropylene glycol n-hexyl ether, tripropylene glycol isohexyl ether, tripropylene glycol phenyl ether, triethylene glycol methyl n-butyl ether, triethylene glycol isobutyl methyl ether, triethylene glycol methyl n-pentyl ether, triethylene glycol isopentyl methyl ether, triethylene glycol methyl n-hexyl ether, triethylene glycol isohexyl methyl ether, triethylene glycol methyl phenyl ether, tripropylene glycol methyl n-butyl ether, tripropylene glycol isobutyl methyl ether, tripropylene glycol methyl n-pentyl ether, triethylene glycol isopentyl methyl ether, triethylene glycol methyl n-hexyl ether, triethylene glycol isohexyl methyl ether, triethylene glycol methyl phenyl ether, tripropylene glycol methyl n-butyl ether, tripropylene glycol isobutyl methyl ether, tripropylene glycol methyl n-pentyl ether, tripropylene glycol isopentyl Methyl ether, tripropylene glycol methyl n-hexyl ether, tripropylene glycol isohexyl methyl ether, tripropylene glycol methylphenyl ether, or mixtures thereof, preferably tripropylene glycol n-butyl ether, tripropylene glycol isobutyl ether, tripropylene glycol n-pentyl ether, tripropylene glycol isopentyl ether, or mixtures thereof, most preferably tripropylene glycol n-butyl ether, tripropylene glycol isobutyl ether, or mixtures thereof. Suitable glycol ether solvents of formula (I) can be purchased from The Dow Chemical Company, in particular as Dowanol® E or P series, for example Dowanol® TPnB.

[0056] In the glycol ether solvent of formula (II), aR 4 is preferably C1, preferably methyl; bR 5 is preferably propyl, more preferably isopropyl; cR 6 is preferably hydrogen.

[0057] Suitable glycol ether solvents according to formula (II) include triethylene glycol methyl ether, triethylene glycol ethyl ether, tripropylene glycol methyl ether, tripropylene glycol ethyl ether, triethylene glycol dimethyl ether, triethylene glycol ethyl methyl ether, tripropylene glycol dimethyl ether, tripropylene glycol ethyl methyl ether, or mixtures thereof, preferably tripropylene glycol methyl ether.Suitable glycol ether solvents according to formula (I) can be purchased from The Dow Chemical Company, in particular as Dowanol® E or P series, for example Dowanol® TPM.

[0058] The composition comprises from 1.0% to 15% by weight of the total composition, preferably from 2.0% to 10.0% by weight, more preferably from 4.5% to 7.5% by weight of the glycol ether solvent.

[0059] The composition comprises a glycol ether solvent of formula (I) and a glycol ether solvent of formula (II) in a weight ratio of less than 2.5:1, preferably from 1:1 to 2.25:1, more preferably from 1.25:1 to 2.0:1. When formulated in the aforementioned ratio, the stability of the glycol ether solvent of formula (I) in a composition containing little or no anionic surfactant is particularly improved without affecting the crystalline fat removal efficacy of the composition.

[0060] Further optional ingredients: Fragrance: The composition preferably includes a fragrance. The fragrance may be present at a concentration of 0.05% to 2.5%, preferably 0.1% to 2.0%, more preferably 0.3% to 1.0% by weight of the composition. As mentioned above, there are some fragrance ingredients, especially those derived from natural extracts, which are typically not stable at high pH levels. Such fragrance ingredients can include essential oils such as lemon, lime, orange, and patchouli, which typically contain volatile compounds that can decompose or evaporate at high pH. Floral extracts such as rose, lavender, and jasmine are also typically sensitive to alkaline conditions and therefore lose their fragrance or undergo chemical changes at high pH levels. Fragrance esters, aldehydes, and ketones also undergo chemical reactions or decomposition at high pH, ​​resulting in loss of fragrance or changes in the fragrance profile. Some natural resins, such as benzoin or myrrh, become less soluble or undergo chemical changes at high pH, ​​affecting their fragrance properties.

[0061] Because the compositions of the present invention are effective at a more neutral pH, the compositions preferably comprise a fragrance, preferably comprising a fragrance ingredient selected from essential oils, flower extracts, fragrance esters, fragrance aldehydes, fragrance ketones, and mixtures thereof.

[0062] Further organic solvents: The composition may further comprise 0.01% to 5% by weight of the composition of an organic solvent selected from the group consisting of C2 to C4 alcohols, C2 to C4 polyols, polyalkylene glycols, in particular polypropylene glycols having a weight average molecular weight of 1500 to 4000, and mixtures thereof.

[0063] Chelating Agents: The compositions herein may optionally further comprise a chelating agent at a concentration of from 0.1% to 10%, preferably from 0.2% to 5%, more preferably from 0.2% to 3%, and most preferably from 0.5% to 1.5% by weight of the composition.

[0064] Suitable chelating agents may be selected from the group consisting of amino carboxylates, amino phosphonates, polyfunctionally substituted aromatic chelating agents, and mixtures thereof.

[0065] Aminocarboxylates include ethylenediaminetetraacetic acid, N-hydroxyethylethylenediaminetriacetic acid, nitrilotriacetic acid, ethylenediaminetetrapropionic acid, triethylenetetraaminehexaacetic acid, diethylenetriaminepentaacetic acid, and ethanoldiglycine, the alkali metal, ammonium, and substituted ammonium salts thereof, and mixtures thereof, as well as MGDA (methyl-glycine-diacetic acid), and its salts and derivatives, and GLDA (glutamic acid-N,N-diacetic acid), and its salts and derivatives. GLDA (its salts and derivatives) is particularly preferred according to the invention, and its tetrasodium salt is particularly preferred.

[0066] builder: The compositions herein may include a builder, preferably a carboxylate builder. Salts of carboxylic acids useful herein include salts of C1-6 linear or cyclic acids containing at least 3 carbons. The linear or cyclic carbon-containing chain of the carboxylic acid or salt thereof may be substituted with a substituent selected from the group consisting of hydroxyl, ester, ether, aliphatic groups having 1 to 6, more preferably 1 to 4, carbon atoms, and mixtures thereof.

[0067] Preferred carboxylic acid salts are those selected from the group consisting of salicylic acid, maleic acid, acetylsalicylic acid, 3 methylsalicylic acid, 4 hydroxyisophthalic acid, dihydroxyfumaric acid, 1,2,4 benzenetricarboxylic acid, pentanoic acid, citric acid, and mixtures thereof, preferably citric acid.

[0068] Additional carboxylate builders suitable for use in the compositions of the present invention include salts of fatty acids, such as palm kernel derived fatty acids or coconut derived fatty acids, or salts of polycarboxylic acids.

[0069] The cation of the salt is preferably selected from alkali metals, alkaline earth metals, monoethanolamine, diethanolamine, or triethanolamine, and mixtures thereof, and is preferably sodium.

[0070] When present, the carboxylic acid or salt thereof is preferably present at a concentration of from 0.05% to 5% by weight of the total composition, more preferably from 0.1% to 1%.

[0071] Hydrotropes The composition according to the invention may further comprise a hydrotrope. Preferably, the hydrotrope is selected from cumene sulfonate, xylene sulfonate, toluene sulfonate, most preferably sodium neutralized cumene sulfonate. When present, the hydrotrope is present in an amount of from 0.1% to 5%, preferably from 0.25% to 3%, most preferably from 0.5% to 2% by weight of the detergent composition.

[0072] Shear thinning rheology modifiers: The composition according to the present invention can further comprise a rheology modifier to provide the product with a shear-thinning rheology profile.By incorporating a rheology modifier polymer, the particle size distribution of the resulting spray can be improved, and the stinging sensation of the spray droplets can also be reduced.Preferably, the rheology modifier is a non-crystalline polymeric rheology modifier.The polymeric rheology modifier can be a synthetic or naturally derived polymer.

[0073] Examples of naturally occurring polymeric structuring agents used in the present invention include hydroxyethylcellulose, hydrophobically modified hydroxyethylcellulose, carboxymethylcellulose, polysaccharide derivatives, and mixtures thereof.Polysaccharide derivatives include, but are not limited to, pectin, alginate, arabinogalactan (gum arabic), carrageenan, karaya gum, tragacanth gum, gellan gum, xanthan gum, and guar gum.Examples of synthetic polymeric structuring agents used in the present invention include polymers and copolymers including polycarboxylates, polyacrylates, polyurethanes, polyvinylpyrrolidone, polyols, and derivatives and mixtures thereof.Alternatively, the composition used in the present invention may include polyethylene oxide (PEO) polymers.

[0074] Preferably, the composition according to the invention comprises a rheology modifying polymer of natural origin, most preferably selected from xanthan gum, polyethylene oxide, or mixtures thereof.

[0075] Generally, the rheology modifying polymer is included at a concentration of from 0.001% to 1%, alternatively from 0.01% to 0.5%, more alternatively from 0.05% to 0.25% by weight of the composition.

[0076] Other Ingredients: The compositions of the present invention may include cleaning amines, such as cyclic cleaning amines. The term "cyclic diamine" as used herein includes single cleaning amines and mixtures thereof. The amine may be subject to protonation depending on the pH of the cleaning medium in which it is used. Particularly preferred for use herein are cyclic diamines selected from the group consisting of 1,3-bis(methylamine)-cyclohexane, 2-methylcyclohexane-1,3-diamine, 4-methylcyclohexane-1,3-diamine, and mixtures thereof. Particularly preferred for use herein is 1,3-bis(methylamine)-cyclohexane. Also preferred for use herein is a mixture of 2-methylcyclohexane-1,3-diamine, 4-methylcyclohexane-1,3-diamine.

[0077] The composition may also include pH adjusters and / or buffers, such as sodium hydroxide, alkanolamines, including monoethanolamine, and inorganic bicarbonates. The composition may further include minor ingredients selected from preservatives, UV stabilizers, antioxidants, fragrances, colorants, and mixtures thereof.

[0078] Spray Dispenser: The spray dispenser comprises a reservoir for containing the composition of the present invention and a spraying means. Suitable spray dispensers include hand pump (sometimes called "trigger") devices, pressurized can devices, electrostatic spray devices, and the like. Preferably, the spray dispenser is non-pressurized, and the spraying means is of trigger dispensing type. The reservoir is typically a container such as a bottle, more typically a plastic bottle.

[0079] The cleaning product of the present invention comprises a cleaning composition. This cleaning composition is typically suitable for spraying ("direct application") from a spray dispenser onto the surface of the dish to be treated. This composition preferably forms a foam on the surface immediately after application without the need for any additional physical (e.g., rubbing with hands) intervention.

[0080] A spray dispenser typically includes a trigger lever that, when depressed, activates a small pump. The main drive of the pump is typically a piston, housed in a cylinder with the piston pressed against a spring. By pressing the trigger, the piston is pushed into the cylinder and against the spring, compressing it and forcing the composition housed in the pump out of the nozzle. When the trigger lever is released, the spring pushes the piston back, expanding the cylinder area, drawing the composition from a reservoir, typically through a one-way valve, and refilling the pump. The pump is typically attached to a tube that draws the composition from the reservoir into the pump. The spray dispenser may include an additional one-way valve located between the pump and the nozzle.

[0081] The nozzle includes an orifice through which the composition is dispensed. The nozzle utilizes the kinetic energy of the composition to break the composition into droplets as it passes through the orifice. Suitable nozzles may be simple or shaped, or may include a swirl chamber immediately prior to the orifice. Such a swirl chamber induces a rotational fluid motion of the composition, causing the composition within the swirl chamber to swirl. A film is emitted from the periphery of the orifice, and the composition is typically dispensed from the orifice as finer droplets.

[0082] Because such trigger-activated spray dispensers include a pump, the composition is preferably not pressurized in the reservoir and preferably does not include a propellant.

[0083] The spray dispenser can be a pre-compressed sprayer that includes a pressurized buffer of the composition and a pressure-activated one-way valve between the buffer and the spray nozzle. Such a pre-compressed sprayer provides a more uniform spray distribution and a more uniform spray droplet size because the composition is sprayed at a more uniform pressure. Such pre-compressed sprayers include the Flairosol® spray dispenser manufactured and sold by Afa Dispensing Group (Netherlands) and the pre-compressed trigger sprayer described in US Patent Application Publication Nos. 2013 / 0112766 and 2012 / 0048959.

[0084] How to use: The cleaning products described herein are particularly suitable for a method of cleaning dishes, which method includes the steps of optionally pre-wetting the dishes, spraying the dishes with the cleaning composition, and optionally scrubbing the dishes and rinsing the dishes.

[0085] The cleaning products described herein are particularly effective in lifting soils, especially greasy soils. Thus, for particularly light soils, scrubbing is optional, especially if the dishware is left to stand for at least 15 seconds, preferably at least 30 seconds, after the spraying step, followed by a rinsing step.

[0086] The steps of scrubbing the dishes and rinsing the dishes can be performed at least partially simultaneously, for example, by scrubbing the dishes under running water or when the dishes are submerged in water. The scrubbing step can take from 1 second to 30 seconds.

[0087] The method can make cleaning of dishes faster and easier when the dishes are lightly soiled.When dishes are heavily soiled with stubborn food stains such as cooking stains, baked-on stains, and burnt-on stains, the method of the present invention facilitates cleaning when the soiled dishes are immersed in the product of the present invention in its undiluted form or diluted with water, preferably for 1 second to 30 seconds or more.

[0088] method A) Viscosity: The rheological profile is measured using a "TA instruments DHR1" rheometer (TA instruments, serial number: SN960912) using a cone and plate configuration (flat steel Peltier plate and 2.026° cone with a diameter of 60 mm). The viscosity measurement procedure includes a conditioning step at 20°C and a sweep step. The conditioning step is 10 seconds at zero shear at 20°C, followed by 10 seconds at 20°C. -1 The sweep step consisted of preshearing at 20° C. for 10 seconds followed by equilibrating the sample at zero shear at 20° C. for 30 seconds. -1 3,000 seconds from -1 The shear rate is increased logarithmically from 1000 to 10000 s with a sample time of 15 s and a maximum equilibration time of 200 s (based on a 3% tolerance, as determined by the rheometer). When measuring shear-thinning product compositions, the high shear viscosity is measured at 1,000 s. -1The low shear viscosity is defined as the shear rate of 0.1 s -1 The shear rate of a Newtonian fluid is defined as 1000 s -1 The shear rate at is recorded.

[0089] B) Stability: The liquid compositions are stored in 30 mL glass vials at a temperature of 50° C. for one day, after which the phase stability of the liquid compositions is visually evaluated.

[0090] C) Removal of crystalline fat: In order to be able to compare the crystalline grease removal abilities of a range of test compositions with each other, the test compositions are sprayed onto soiled substrates containing crystalline grease and the percent removal after the cleaning test is assessed by visual grading as described below.

[0091] The crystalline greasy soil used contained a mixture of CABF (Consumer Average Beef Fat, L2802405 / 200B3 / E3, supplied by J&R coordinating services Inc, Ohio, USA) and a liposoluble dye (Dye EGN Oil Red: CAS: 4477-79-6, Sigma Aldrich Ref. 234117) added at a concentration of 0.05% by weight. The crystalline greasy soil was prepared by melting the CABF in an oven at 50°C until it was completely liquefied, and then mixing the dye.

[0092] Molten CABF at a temperature of 50° C. was deposited on the tile evenly over the entire surface of the tile using a synthetic foam paint roller until an amount of 0.65 g + / - 0.05 g of CABF was deposited on the enamel tile (white enamel tile with a size of 25 cm x 7 cm, supplied by Emaillerie Belge, Rue Saint-Denis 122, 1190 Forest, BE). The tile is left at 23° C. and a humidity of 50 RH for 3 hours before being used for testing.

[0093] For each test composition, the test was repeated three times using three different enamel tiles.

[0094] Three tiles were placed horizontally on the surface. Using a Flairosol® sprayer (supplied by AFA), the test solution was sprayed six times for a total of about 5 seconds to cover half of the tile surface and allowed to act for 4 minutes. The tiles were then repositioned vertically and 20 mL of demineralized water was sprayed twice onto the tiles, and the foam was washed away using a 20 mL syringe.

[0095] A digital camera was used to take pictures of the tiles and then visually graded on a scale of 0 to 5, with 0 being no change and 5 being complete removal of the crystalline fat. EXAMPLES

[0096] Liquid detergent spray compositions according to the present invention and comparative compositions outside the scope of the present invention were evaluated for crystalline grease removal efficacy.

[0097] In Table 1, Example 1 of the present invention contained a combination of a solvent of formula (I), tripropylene glycol n-butyl ether, and a solvent of formula (II), tripropylene glycol methyl ether, as well as a surfactant system consisting of a C8-C10 alkyl polyglucoside, a C12-14 dimethylamine oxide as a co-surfactant, and a C6EO5 nonionic surfactant. The resulting composition was stable and effective in removing crystalline fat with little or no scrubbing. Comparative Example A was similar to Example 1, except that it did not contain the solvent of formula (II). Thus, while the composition was effective in removing crystalline fat, the composition was not stable and phase separated. Comparative Example B was similar to Example 1, except that it contained ethanol instead of the solvent of formula (II). Thus, the composition was stable, but the solvent of formula (I) was not as effective in the composition in removing crystalline fat.

[0098] Inventive Example 2 was similar to Example 1, except that it had a pH of 7.0 instead of 11.2. By comparing the results of Inventive Example 2 with those of Inventive Example 1, it can be seen that when the composition is formulated to have a more neutral pH, the removal of crystalline fat is improved with little or no scrubbing. Comparative Example C was similar to Example 2, except that it did not contain a solvent of formula (II). Thus, the composition was effective in removing crystalline fat, but the composition was not stable and phase separated. Comparative Example D was similar to Example 2, except that it contained ethanol instead of a solvent of formula (II). Thus, the composition was stable, but the solvent of formula (I) was not as effective in the composition in removing crystalline fat.

[0099] Comparing the results of Comparative Example C with those of Inventive Example 2 shows that the benefits of the solvent combination of formulae (I) and (II) are present even at lower pH, where ingredients such as perfumes are more chemically and odoriferously stable.

[0100] [Table 1] * comparison 1 Glucopon® 215, supplied by BASF 2 Lutensol® CS6250, supplied by BASF 3 Solvent of formula (I), sold under the trade name Dowanol TPNB, supplied by DOW 4 Solvent of formula (II), sold under the trade name Dowanol TPM, supplied by DOW

[0101] In Table 2, Example 3 of the present invention contained a surfactant system consisting of a C12-C14 alkyl polyglucoside, a C12-14 dimethylamine oxide as a co-surfactant, and a C6EO5 nonionic surfactant in addition to a combination of a solvent of formula (I), tripropylene glycol n-butyl ether, and a solvent of formula (II), tripropylene glycol methyl ether. The resulting composition was stable and effective in removing crystalline fat with little or no scrubbing. Comparative Example E was similar to Example 3, except that it did not contain the solvent of formula (II). Thus, the composition was effective in removing crystalline fat, but the composition was not stable and phase separated. Comparative Example F was similar to Example 1, except that it contained ethanol instead of the solvent of formula (II). Thus, the composition was stable, but was less effective in removing crystalline fat.

[0102] Inventive Example 4 was similar to Example 3 except that it had a pH of 7.0 instead of 11.2. By comparing the results of Inventive Example 4 with those of Inventive Example 3, it can be seen that when the composition is formulated to have a more neutral pH, the removal of crystalline fat is improved with little or no scrubbing.

[0103] Comparing the results of Comparative Example G with those of Inventive Example 3 shows that the benefit of the solvent combination of formulae (I) and (II) exists even at lower pH.

[0104] The results of Examples 1-2 and 3-4 of the present invention demonstrate that the benefits of the solvent combination of formulae (I) and (II) exist when the surfactant system contains alkyl polyglucosides of different chain lengths over a wide range of surfactant concentrations.

[0105] [Table 2] 1 Glucopon® 600, supplied by BASF 6Another ether solvent, sold under the trade name Dowanol DPNB, supplied by DOW

[0106] In Table 3, Comparative Example I and Inventive Examples 5-7 contained the same surfactant system and the same concentration of glycol ether solvent of formula (I), but the weight ratio of solvent of formula (I) to solvent of formula (II) was reduced. The results show that improved stability is achieved when the weight ratio of solvent of formula (I) to solvent of formula (II) is less than 2.5 or less than 2.0.

[0107] [Table 3]

[0108] In Table 4, examples contain anionic surfactant at a concentration of more than 3.0% by weight of composition.Therefore, both compositions are comparative examples.Examples J and K show that compositions containing high concentrations of anionic surfactant already provide good stability, and in such anionic-rich compositions, there is no problem of stably blending hydrophobic glycol ether solvent of formula (I).However, as mentioned herein, spray from such compositions is more likely to cause nasal and eye irritation.

[0109] [Table 4]

[0110] The data in Table 4 demonstrate that the problem of stabilizing liquid compositions containing glycol ether solvents of formula (I) does not exist in compositions containing high concentrations of anionic surfactants.

[0111] Dimensions and values ​​disclosed herein should not be understood as being strictly limited to the exact numerical values ​​recited. Instead, unless otherwise specified, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm."

Claims

1. 1. A cleaning product comprising a spray dispenser and a cleaning composition, the composition being contained in the spray dispenser, the cleaning composition comprising: a. from 2% to 20% by weight of the composition of a surfactant system, i. alkyl polyglucoside surfactants, ii. a co-surfactant selected from amphoteric surfactants, zwitterionic surfactants, and mixtures thereof; and iii. less than 3.0% by weight of the cleaning composition of an anionic surfactant A surfactant system comprising: b. A glycol ether solvent, i. Formula (I): R １ O (R ２ O) ３ R ３ (In the formula, R １ is a straight or branched C4, C5, or C6 alkyl or a substituted or unsubstituted phenyl; R ２ is ethyl or propyl, R ３ is hydrogen or methyl; and ii. Formula (II): R ４ O (R ５ O) ３ R ６ (In the formula, R ４ is methyl or ethyl, R ５ is ethyl or propyl, R ６ is hydrogen or methyl) and a glycol ether solvent comprising 1. A cleaning product, wherein said composition comprises from 1.0% to 15% by weight of the total composition of said glycol ether solvent, said composition comprising said glycol ether solvent of formula (I) and said glycol ether solvent of formula (II) in a weight ratio of less than 2.5:

1.

2. A cleaning product according to claim 1, wherein the composition comprises from 3% to 15%, preferably from 3.5% to 8.0%, of said surfactant system by weight of the composition.

3. 3. A cleaning product according to claim 1 or 2, wherein the cleaning composition comprises the alkyl polyglucoside at a level of from 0.5% to 7.5%, preferably from 1.0% to 5.0%, more preferably from 1.5% to 3.0% by weight of the composition.

4. 4. A cleaning product according to any one of the preceding claims, wherein the alkyl polyglucoside surfactant comprises an alkyl chain of from C8 to C18, preferably from C10 to C16, more preferably from C12 to C14, and the alkyl polyglucoside surfactant has a number average degree of polymerisation of from 0.1 to 3.0, preferably from 1.0 to 2.0, more preferably from 1.2 to 1.

6.

5. 5. A cleaning product according to any one of the preceding claims, wherein the cleaning composition comprises the co-surfactant at a level by weight of the composition of from 0.5% to 7.5%, preferably from 1.0% to 5.0%, more preferably from 1.5% to 3.0%.

6. 6. A cleaning product according to any one of the preceding claims, wherein the co-surfactant is an amphoteric surfactant selected from amine oxide surfactants, preferably the amine oxide surfactant is selected from the group consisting of alkyl dimethyl amine oxide, alkyl amidopropyl dimethyl amine oxide, and mixtures thereof, more preferably alkyl dimethyl amine oxide.

7. 6. A cleaning product according to any one of claims 1 to 5, wherein the co-surfactant is a zwitterionic surfactant selected from betaine surfactants, preferably the betaine surfactant is selected from the group consisting of cocamidopropyl betaine, coco betaine, lauramidopropyl betaine, lauryl betaine, myristyl amidopropyl betaine, myristyl betaine, and mixtures thereof, preferably cocamidopropyl betaine.

8. A cleaning product according to any preceding claim, wherein the alkyl polyglucoside surfactant and the co-surfactant are present in a weight ratio of from greater than 10:1 to 1:10, preferably from 5:1 to 1:5, more preferably from 2:1 to 1:

2.

9. In the glycol ether solvent of formula (I), a.R １ is linear or branched C4, C5, preferably linear or branched C4, more preferably linear butyl; b. R ２ is propyl, more preferably isopropyl; c.R ３ A cleaning product according to any one of claims 1 to 8, wherein is hydrogen.

10. In the glycol ether solvent of formula (II), a.R ４ is C1, preferably methyl; b. R ５ is propyl, more preferably isopropyl; c.R ６ A cleaning product according to any one of claims 1 to 9, wherein is hydrogen.

11. A cleaning product according to any preceding claim, wherein the composition comprises from 2.0% to 10.0%, preferably from 4.5% to 7.5% of said glycol ether solvent by weight of the total composition.

12. 12. A cleaning product according to any one of the preceding claims, wherein the composition comprises said glycol ether solvent of formula (I) and said glycol ether solvent of formula (II) in a weight ratio of from 1:1 to 2.25:1, preferably from 1.25:1 to 2.0:

1.

13. 13. A cleaning product according to any preceding claim, wherein the surfactant system and the organic solvent are present in a weight ratio of from 3:1 to 1:3, preferably from 1.5:1 to 1:2, most preferably from 1:1 to 1:1.

5.

14. A cleaning product according to any one of the preceding claims, wherein the composition has a pH, measured neat at 20°C, of ​​at least 6, preferably between 6 and 12, more preferably between 6.5 and 8.

0.

15. 15. A cleaning product according to any preceding claim, wherein the composition comprises a perfume, preferably the perfume comprises a perfume ingredient selected from essential oils, floral extracts, perfume esters, perfume aldehydes, perfume ketones, and mixtures thereof.

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