CN110139921B - Hard surface cleaning compositions - Google Patents

Hard surface cleaning compositions Download PDF

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CN110139921B
CN110139921B CN201780082027.1A CN201780082027A CN110139921B CN 110139921 B CN110139921 B CN 110139921B CN 201780082027 A CN201780082027 A CN 201780082027A CN 110139921 B CN110139921 B CN 110139921B
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hard surface
detergent surfactant
weight
cleaning
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CN110139921A (en
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P·班德佑帕德雅
J·P·科图卡帕里
U·玛达范
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Unilever IP Holdings BV
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    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/37—Mixtures of compounds all of which are anionic
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/29—Sulfates of polyoxyalkylene ethers
    • C11D2111/14—

Abstract

A hard surface cleaning composition comprising: 5 to 60 wt% of a detergent surfactant, 0.5 to 4 wt% of a polymer comprising acrylic acid, and; water; wherein the composition is silicone-free and metal-free bleach catalyst; wherein the composition has a pH of 5.5 or less; and wherein at least 50% of the total detergent surfactant is a combination of alkyl ether sulphate and alkylbenzene sulphonate, wherein the ratio of alkyl ether sulphate to alkylbenzene sulphonate is at least 1: 1. A method of cleaning a hard surface comprising the steps of: a. applying the composition in neat or diluted form to a hard surface, b.

Description

Hard surface cleaning compositions
Technical Field
The present invention relates to hard surface cleaning compositions.
Background
There are several situations in daily activities, such as washing, including laundry, dishwashing and household cleaning, which require cleaning compositions. In particular, dishwashing and home cleaning include cleaning hard surfaces such as utensils, tableware, sinks, platforms, kitchen countertops, tiles, floors, cabinets and doors. Hard surfaces like these are typically cleaned by applying the hard surface cleaning composition in neat or diluted form and then cleaning the hard surface by a suitable method, such as scrubbing, sponge, paper, cloth, wipe, and simply by hand and rinsing the hard surface.
Consumers often prefer to use as much amount of hard surface cleaning composition as they produce enough foam because they typically correlate the efficacy of the cleaning composition to the volume of foam they produce, i.e., more foam is more effective. This sometimes results in the consumer using more than the desired amount of the cleaning composition.
Many hard surface cleaning compositions available on the market are found to contain increased amounts of detergent surfactant. These increased amounts of detergent surfactant generally provide effective cleaning, and it is generally found that these increased amounts of detergent surfactant produce increased volumes of suds.
However, recently, the trend of using reduced amounts of detergent surfactants in cleaning compositions is increasing from an environmental point of view.
However, reducing the amount of detergent surfactant in the cleaning composition may result in ineffective cleaning. Also, in many cases, it also results in a reduction in foam volume, which is less preferred by consumers as they correlate low foam volume with low or no efficacy of the cleaning composition.
JP05-072960(Shiseido KK) discloses an acidic detergent composition having a pH of 1.5-4.0 comprising an anionic surfactant having a sulfonic acid or sulfuric acid group, a water-soluble polyacrylic acid or salt thereof, and an organic acid.
Despite efforts to date, there remains a need for cleaning compositions that provide effective cleaning and/or high lather volume despite the use of lower amounts of detergent surfactant.
It has been found that by providing a composition comprising a specific combination of anionic detergent surfactant, acrylic acid containing polymer, and water, and having a pH of 5.5 or less, a reduction in the amount of detergent surfactant is achieved while maintaining at least partial cleaning efficacy and/or lather volume.
Disclosure of Invention
In a first aspect, the present invention provides a hard surface cleaning composition comprising:
5 to 60% by weight of a detergent surfactant,
0.5 to 4% by weight of a polymer comprising acrylic acid, and;
water;
wherein the composition is silicone-free and metal-free bleach catalyst;
wherein the composition has a pH of 5.5 or less; and
wherein at least 50% of the total detergent surfactant is a combination of Alkyl Ether Sulphate (AES) and Alkyl Benzene Sulphonate (ABS), wherein the ratio of AES to ABS is at least 1: 1.
In a second aspect, the present invention provides a method of cleaning a hard surface comprising the steps of:
a. the composition according to the invention is applied to a hard surface in neat or diluted form,
b. cleaning the hard surface by a suitable method or simply by hand, and
c. rinsing the hard surface.
Detailed Description
Amounts used herein are expressed as weight percent based on the total weight of the composition and are abbreviated as "wt%" unless otherwise indicated.
The use of any and all examples, or exemplary language (e.g., "such as") provided herein, is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention otherwise claimed.
The present invention relates to a composition comprising a specific combination of anionic detergent surfactant, acrylic acid containing polymer, water and having a pH of 5.5 or less.
Detergent surfactant
There are various types of detergent surfactants, i.e. anionic, nonionic, amphoteric and cationic detergent surfactants. Detergent surfactants are one of the main ingredients known to provide cleaning benefits.
The composition according to the invention comprises from 5 to 60 wt%, preferably from 10 to 50 wt%, more preferably from 20 to 40 wt%, even more preferably from 30 to 35 wt% of detergent surfactant.
At least 50%, preferably at least 60%, more preferably at least 70%, even more preferably at least 80%, even more preferably at least 90%, most preferably 100% of the total amount of detergent surfactant consists of a combination of Alkyl Ether Sulphate (AES) and Alkyl Benzene Sulphonate (ABS).
For example, when the composition comprises 60 wt% of detergent surfactant, then at least 50% of the detergent surfactant, i.e. in this case 30 wt% of the composition, consists of AES and ABS.
AES
AES is of the formula R1-(OR')n-O-SO3 -M+The anionic detergent surfactant of (1),
wherein R is1Is saturated or unsaturated C8-C16Preferably C12-C14An alkyl chain; preferably, R1Is saturated C8-C16More preferably saturated C12-C14An alkyl chain;
r' is ethylene;
n is 1 to 18; preferably 1 to 15, more preferably 1 to 10, even more preferably 1 to 5.
M+Are suitable cations that provide charge neutrality, preferably sodium, calcium, potassium or magnesium, more preferably sodium cations.
Illustrative examples of AES include Sodium Lauryl Ether Sulfate (SLES), sodium myristyl ether sulfate, and sodium palmityl ether sulfate. Preferred AES is SLES with 1-3 ethylene oxide units per molecule is preferred. SLES having 1 to 2 ethylene oxide units per molecule are most preferred.
SLES is found in many products, such as soaps, shampoos, toothpastes and cleaning compositions including laundry and hard surfaces.
ABS
ABS is an anionic detergent comprising a water-soluble alkali metal salt of an organic sulphonic acid having an alkyl group, typically containing from 8 to 22 carbon atoms, preferably from 8 to 18 carbon atoms, more preferably from 12 to 15 carbon atoms, and may be unsaturated.
Illustrative examples of ABS include sodium salt of linear alkylbenzene sulfonic acid (LAS), alkyltoluene sulfonate, alkylxylene sulfonate, alkylphenol sulfonate, alkylnaphthalene sulfonate, ammonium dipentylnaphthalene sulfonate and sodium dinonylnaphthalene sulfonate and mixtures with olefin sulfonates.
The preferred ABS is a LAS having an alkyl group containing 12 to 14 carbon atoms.
Ratio of AES to ABS
The detergent surfactant of the composition comprises at least 50% of its total amount as a combination of AES and ABS. The ratio of AES to ABS weight to weight is at least 1:1, preferably at least 2:1, more preferably at least 3:1, even more preferably at least 4:1, even more preferably at least 6:1, yet more preferably at least 8: 1.
When the ratio of AES to ABS is 4:1, there is 4 parts AES per 1 part ABS. For example, when the SLES: LAS ratio is 4:1, there are 4 parts SLES per 1 part LAS.
Preferably the amount of AES is greater than the amount of ABS.
Additional detergent surfactant
The composition may further comprise one or more additional detergent surfactants, i.e. in addition to AES and ABS, as part of the detergent surfactant. These detergent surfactants may be selected from anionic, nonionic, cationic and amphoteric types of detergent surfactants.
Illustrative examples of anionic detergent surfactants other than SLES and LAS are sodium lauryl sulfate, ammonium lauryl sulfate, soap, diethanolamine lauryl sulfate.
Illustrative examples of nonionic detergent surfactants include the condensation products of higher alcohols (e.g., alkanols containing from about 8 to 18 carbon atoms in a straight or branched chain configuration) with from about 5 to 30 moles of ethylene oxide, for example the condensation products of lauryl or myristyl alcohol with about 16 moles of Ethylene Oxide (EO), tridecyl alcohol with about 6 moles of EO, myristyl alcohol with about 10 moles of EO per mole of myristyl alcohol, EO with a fraction of coconut fatty alcohol containing a mixture of fatty alcohols having alkyl chains from 10 to about 14 carbon atoms in length, where the condensate contains about 6 moles of EO per mole of total alcohol or about 9 moles of EO per mole of alcohol, and tallow alcohol ethoxylates containing from 6EO to 11EO per mole of alcohol. Especially preferred are lauryl alcohols (laureth 5, 7 and 9) condensed with 5, 7 and 9 moles of ethylene oxide.
2 to 30 moles of ethylene oxide with sorbitan mono-and tri-C having an HLB of 8 to 1510-C20Condensates of alkanoic acid esters, such as polyoxyethylene (4) sorbitan monolaurate, polyoxyethylene (4) sorbitan monostearate, polyoxyethylene (20) sorbitan trioleate, and polyoxyethylene (20) sorbitan tristearate, may also be used as nonionic detergent surfactants. These surfactants are available from Imperial Chemical Industries under the trade name TweenTMAre commercially available.
Preferred nonionic detergent surfactants are laureth 5, laureth 7 and laureth 9.
An illustrative example of a cationic detergent surfactant is a quaternary ammonium salt, characterized in that the ammonium salt has the general formula: r1R2R3R4N+X-Wherein R is1Is C12-C18Alkyl radical, R2、R3And R4Each independently is C1-C3Alkyl, X is an inorganic anion. R1Preferably C14-C16Straight chain alkyl, more preferably C16。R2-R4Preferably methyl. The inorganic anion is preferably selected from halide, sulfate, hydrogen sulfate or OH-. Thus, for the purposes of the present invention, quaternary ammonium hydroxides are considered to be quaternary ammonium salts. More preferably the anion is a halide or sulfate, most preferably chloride, bromide or sulfate. Cetyl trimethylammonium bromide is a specific example of a suitable compound.
Another type of quaternary ammonium cationic surfactant is the benzalkonium halide class, also known as alkyldimethylbenzyl ammonium halides. The most common and preferred is benzalkonium chloride, also known as alkyldimethylbenzyl ammonium chloride (or ADBAC). One preferred class of benzalkonium chloride is given in the formula below.
Figure BDA0002115725650000061
Amphoteric detergent surfactants may be of the amide, betaine and amine oxide type, i.e. cocamidopropyl betaine, cocamidopropyl amine oxide, cocodiethanolamide and cocomonoethanolamide. A preferred amphoteric detergent surfactant is cocamidopropyl betaine.
When used, these additional detergent surfactants may be used in amounts of 0.1 to 30 wt%, preferably 1 to 25 wt%, more preferably 3 to 20 wt%, even more preferably 5 to 15 wt%, and even more preferably 8 to 13 wt%. For the avoidance of doubt, 25 wt% of additional detergent surfactant means that if the composition comprises 60 wt% of detergent surfactant, then 60 wt% consists of 35 wt% of AES and ABS and the remaining 25 wt% of additional detergent surfactant.
Polymer and method of making same
The composition also includes an acrylic-containing polymer. The polymer may be a homopolymer or a copolymer. The composition may comprise a combination of homopolymers and copolymers comprising acrylic acid.
We have found that polymers in combination with the detergent surfactant of the composition enhance cleaning. It also enhances the foaming capacity, i.e. the foam volume, of the composition.
An illustrative example of a homopolymer of acrylic acid is that which may be under the tradename AcusolTM805s Hydrophobically modified acrylic-based polymer emulsion commercially available and available under the trade name AcusolTM445 commercially available acrylic acid homopolymer. The preferred homopolymer is an acrylic homopolymer.
Illustrative examples of copolymers comprising acrylic acidIs available under the trade name AcusolTM845A polymer of acrylic and methacrylic acid esters, commercially available under the tradename AcusolTM497N commercially available copolymer of acrylic acid and maleic anhydride and available under the tradename AcusolTM505N of a commercially available acrylic acid/maleic acid copolymer. Preferred copolymers comprising acrylic acid are polymers of acrylic acid and methacrylic acid esters.
The total amount of acrylic acid-containing polymers that may be present in the composition is from 0.5 to 4 weight percent, preferably from 0.8 to 3.5 weight percent, more preferably from 1 to 3.2 weight percent, even more preferably from 1.3 to 3 weight percent, and still more preferably from 1.5 to 2.8 weight percent.
Water (W)
The composition further comprises water. The amount of water is preferably 40 to 94% by weight, more preferably 50 to 90% by weight, even more preferably 60 to 80% by weight, and still more preferably 65 to 75% by weight.
Silicone-free and metal-free catalytic bleaching agent
The composition is silicone-free. Silicones have been found to compromise the soil resistance of the composition. Silicone is intended to include any derivatives thereof. Silicone-free is defined as no more than 1.5 wt% silicone in the total composition. Preferably, the composition comprises no more than 1 wt%, more preferably no more than 0.5 wt% silicone. Even more preferably, the composition is substantially free of silicone and does not contain any silicone.
The composition is free of metal bleach catalysts. Metal-free bleach catalyst is defined as not more than 0.05 wt% metal bleach catalyst. Preferably, the composition is substantially free of metal bleach catalysts and does not comprise any metal bleach catalysts.
Preferably, the composition does not contain any bleach, as this may be considered too caustic for use as a hand dishwashing composition. Bleaching agents include chlorine-containing compounds such as hypochlorite, hydrogen peroxide, ozone and the like. Bleach free is defined as no more than 1.5% by weight of bleach in the total composition. Preferably, the composition comprises no more than 1 wt%, more preferably no more than 0.5 wt% of a bleaching agent. Even more preferably, the composition is substantially free of bleach and does not contain any bleach.
pH of the composition
It was found that the polymers as described above enhance cleaning in combination with the detergent surfactant of the composition. It also enhances the foaming capacity, i.e. the foam volume, of the composition. However, these effects were found to be pH dependent and were only obtained when the pH of the composition was 5.5 or lower.
The pH of the composition is 5.5 or less, preferably less than 5.0, more preferably less than 4.5, even more preferably less than 4.0, and still more preferably less than 3.5.
The pH is adjusted using conventional pH adjusters such as citric acid and sodium hydroxide.
Preferably, the hard surface cleaning composition comprises:
5 to 60% by weight of a detergent surfactant,
0.5 to 4% by weight of a polymer comprising acrylic acid, and;
water;
wherein the composition has an acidic pH of 5 or less; and
wherein at least 50% of the total amount of surfactant is a combination of AES and ABS, wherein the ratio of AES to ABS is at least 1: 1.
Product form
The composition may be used as such, i.e. neat, or may be diluted prior to use. For hard surface cleaning, the composition is typically applied directly to the surface in its neat form. However, if applied in diluted form, the composition may be diluted with water in a ratio of 1:1 to 1: 10.
Optional ingredients
The composition may further comprise optional ingredients to aid in cleaning or sensory properties, such as colorants, preservatives, antimicrobials, perfumes, chelating agents and hydrotropes, as well as polymers, such as POLYOXTMWSR N60K。
Method for cleaning hard surfaces
In a second aspect, the present invention relates to a method of cleaning a hard surface comprising the steps of:
a. the composition according to the invention is applied to a hard surface in neat or diluted form,
b. cleaning said hard surface by a suitable method, and
c. rinsing the hard surface.
The composition may be applied to the hard surface by using any suitable method, for example by using a wipe, sponge, paper, cloth, wipe, or simply applying the composition directly by hand. The same suitable method can then be used to clean the hard surface.
The invention will now be illustrated by the following non-limiting examples.
Examples
Scheme(s)
All of the compositions shown in examples 1, 2 and 3 were prepared as described below, and using SLES, LAS and acrylic acid containing polymers in the amounts shown for the compositions in each of examples 1, 2 and 3 below. All compositions contain the balance water to 100% by weight and minor ingredients such as fragrance, colour.
Preparation of the composition:
LAS acid was dissolved in water and neutralized with sodium hydroxide. SLES was then added and the mixture was stirred continuously with an overhead stirrer until SLES was completely dissolved. To this was added 2.7 wt% magnesium sulfate and minor ingredients such as perfume and colour. Finally, the polymer is added and the pH is adjusted to the desired value with citric acid or sodium hydroxide.
Preparing dirt:
the soil used for the test was a mixture of wheat flour (Aasharvaad Select Superior Sharbati Atta from ITC), sunflower oil (Sunpure, MK Agrotech Pvt Ltd), oleic acid (Loba Chemie) and stearic acid (SD fine chemicals Ltd). Typical compositions of the soil are provided in table 1.
Table 1: composition of soil
Components Soil composition (% by weight) Soil preparation (for 230g)
Stearic acid 0.22 0.5
Oleic acid 0.22 0.5
Sunflower oil 8.26 19
Common wheat flour 8.7 20
Demineralized water 82.6 190
Stearic acid and oleic acid are added to sunflower oil and heated until the stearic acid melts. Water heated to 60 ℃ was added to the wheat flour and mixed thoroughly to avoid any caking. The oil mixture was then added to wheat flour and mixed thoroughly. The final remaining amount of boiling water was added to the mixture and stirred to break up any lumps. The mixture was then heated on a hot plate and bubbled for 3 to 4 minutes. Finally, the mixture was cooled at room temperature and then used for the study.
Foam volume measurement procedure:
the initial foam volume of the composition was evaluated using the Bartsch method. Stock solutions containing 6.25g/L of the test solution were prepared in 24FH water. 50mL of the stock solution was placed in 250mL glass cylinders and each cylinder was manually inverted 10 times 180 using manual shaking. The total foam height was taken as the total foam volume (excluding an aliquot of water). Data are reported as% foam by volume relative to control.
For the control, a composition containing 18 wt% of detergent surfactant containing SLES and LAS in a 1:1 ratio was used. The initial foam volume of the control was found to be 210ml and was taken as 100% when determined by the method described above.
Soil resistance:
the initial foam was generated as described in the section above. Once a column of foam was produced, 0.5g of soil was added to the system and the cylinder was rotated 10 times 180 ° using hand shaking. The change in foam height was recorded. This process was repeated until the final foam volume had dropped to less than 10 mL. The total amount of soil required to reduce the foam column to less than 10mL is considered to be the soil tolerance of the surfactant system. The higher the soil resistance number, the better the surfactant system and thus the higher the efficacy of the composition. Soil resistance data is reported as% soil resistance relative to control.
For the control, a composition containing 18 wt% of detergent surfactant containing SLES and LAS in a 1:1 ratio was used. The soil resistance value of the control was found to be 9.5g and was considered to be 100% when measured by the soil resistance method described above.
Example 1: influence of pH
Table 2: influence of pH
Figure BDA0002115725650000101
Figure BDA0002115725650000111
As can be seen from example 1.3 in the table above, the soil resistance of the composition is 84% at pH 5.5. However, at pH 4, the composition of example 1.4 shows 100% soil resistance.
Example 2: effect of detergent surfactant ratio
Table 3: effect of detergent surfactant ratio (pH 4.0)
Figure BDA0002115725650000112
As can be seen from example 2.8 in the table above, the soil resistance of the composition containing SLES and LAS in a ratio of 4:1 is comparable to the soil resistance of the control. It can also be seen that the volume of foam produced was found to be 95% for the same composition, almost comparable to the volume of the control.
Example 3: effect of Polymer content
Table 4: effect of Polymer content (pH 4.0, SLES: LAS ratio 4:1)
Figure BDA0002115725650000113
Figure BDA0002115725650000121
As can be seen from the above table, with 1 or 2 wt% polymer, as good soil resistance as the control was obtained.
Thus, it can be concluded that the compositions of the present invention provide as effective cleaning as the control provides, i.e. stain tolerance, despite the use of reduced detergent surfactant (13 wt%) compared to the detergent surfactant (18 wt%) contained in the control. Furthermore, it was found that the compositions of the present invention provide as high a foaming capacity, i.e. foam volume, as the control provides.
Example 4: effect of Silicone on dirt resistance
Table 5: effect of Silicone on dirt resistance
Figure BDA0002115725650000122
PDMS ═ polydimethylsiloxane.

Claims (10)

1. A hard surface cleaning composition comprising:
5 to 60% by weight of a detergent surfactant,
0.5 to 4% by weight of a homopolymer of acrylic acid, and;
water;
wherein the composition comprises no more than 1.5 wt.% silicone and no more than 0.05 wt.% metal bleach catalyst;
wherein the composition has a pH of 5.5 or less; and
wherein at least 50 wt% of the total detergent surfactant is a combination of alkyl ether sulphate and alkylbenzene sulphonate, wherein the weight ratio of alkyl ether sulphate to alkylbenzene sulphonate is at least 1: 1.
2. The composition of claim 1, wherein the composition has a pH of 5 or less.
3. The composition of claim 1 or 2, wherein the alkyl ether sulfate is sodium lauryl ether sulfate.
4. The composition of claim 1 or 2 wherein the alkylbenzene sulfonate is a sodium salt of a linear alkylbenzene sulfonic acid.
5. The composition according to claim 1 or 2, wherein the detergent surfactant further comprises from 0.1 to 30 wt% of at least one additional anionic detergent surfactant, by weight of the hard surface cleaning composition.
6. The composition according to claim 1 or 2, wherein the detergent surfactant further comprises from 0.1 to 30 wt% of a nonionic detergent surfactant, by weight of the hard surface cleaning composition.
7. The composition of claim 1 or 2, wherein the detergent surfactant further comprises from 0.1 to 30 wt% of an amphoteric detergent surfactant, by weight of the hard surface cleaning composition.
8. The composition of claim 1 or 2, wherein the detergent surfactant further comprises from 0.1 to 30 wt% of a cationic detergent surfactant, by weight of the hard surface cleaning composition.
9. A composition according to claim 1 or 2, wherein the composition contains no more than 1.5% by weight of bleach.
10. A method of cleaning a hard surface comprising the steps of:
a. applying the composition according to any one of claims 1-9 in neat or diluted form to a hard surface,
b. cleaning said hard surface, and
c. rinsing the hard surface.
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