WO2002090484A2 - Hard surface cleaning wipe - Google Patents

Hard surface cleaning wipe Download PDF

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Publication number
WO2002090484A2
WO2002090484A2 PCT/EP2002/004587 EP0204587W WO02090484A2 WO 2002090484 A2 WO2002090484 A2 WO 2002090484A2 EP 0204587 W EP0204587 W EP 0204587W WO 02090484 A2 WO02090484 A2 WO 02090484A2
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WO
WIPO (PCT)
Prior art keywords
weight
alkyl
composition
total weight
cleaning
Prior art date
Application number
PCT/EP2002/004587
Other languages
French (fr)
Other versions
WO2002090484A3 (en
Inventor
Giuseppe Vincenzo Bolzoni
Emanuela Ferro
Carolyn Elizabeth Jones
Gianluca Lucchini
Original Assignee
Unilever Plc
Unilever Nv
Hindustan Lever Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unilever Plc, Unilever Nv, Hindustan Lever Limited filed Critical Unilever Plc
Priority to AU2002312854A priority Critical patent/AU2002312854A1/en
Publication of WO2002090484A2 publication Critical patent/WO2002090484A2/en
Publication of WO2002090484A3 publication Critical patent/WO2002090484A3/en

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Classifications

    • 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
    • C11D3/36—Organic compounds containing phosphorus
    • C11D3/361—Phosphonates, phosphinates or phosphonites
    • 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
    • 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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
    • C11D17/049—Cleaning or scouring pads; Wipes
    • 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
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2068—Ethers
    • 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
    • C11D3/43—Solvents
    • 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
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces

Definitions

  • the present invention relates to a cleaning wipe which is designed in particular for the cleaning of hard surfaces such as are found in the household, or in institutional or hospital environments .
  • the wipe contains a cleaning formulation based on a particular type of anionic surfactant.
  • EP 0 240 009 describes a pre-moistened wipe for cleaning a hard surface to a substantially streak-free finish comprising a flexible substrate carrying a liquid cleaning composition based on surface active agent, aliphatic alcohol and water.
  • the cleaning composition typically contains from 15 to 25% by weight ethanol .
  • EP 0 948 892 describes a liquid disinfectant for hard surfaces in which reduced filming or streaking is observed due, it is said, to the presence of a poly (alkylene glycol) alkyl ether.
  • Organic solvents such as ethanol, butyl carbitol and n-butoxypropanol are also included to enhance cleaning.
  • O98/50518 describes aqueous alkaline hard surface cleaners demonstrating superior film/streak performance.
  • the compositions are designed for spray dispensation and are based on a low level of anionic surfactant (preferably alkyl sulphate) in combination with ethanol, at a typical level of 5.0% by weight, and an alkalising agent in order to raise the pH above 12.5.
  • EP 0 823 937 relates to glass cleaning compositions which impart good cleaning without objectionable levels of filming or streaking which comprise less than 1% by weight of a linear alkyl sulphate detergent surfactant, in combination with water, hydrophobic solvent and non-aqueous polar solvent.
  • the compositions typically contain at least 2% by weight of non-aqueous polar solvent such as ethanol, and at least 2% by weight of hydrophobic solvent such as butoxypropanol .
  • the solution proposed by EP 0 604 996 uses a pre- moistened wiping article comprising a flexible substrate carrying a liquid composition comprising an aqueous solution of from 5 to 15% by weight of a onohydric aliphatic alcohol, preservative and from 0.01 to 1% by weight of an alkylpolyglycoside. This is stated to be a low alcohol content formulation which still achieves the favourable results associated with higher alcohol content formulations.
  • EP 0 604 996 still contains a significant amount of alcohol (typically 6-8% by weight) .
  • WOOO/23553 provides a surface cleaner for misting showers and bathtubs which does not spot or streak when dry and which is aqueous based and alcohol free.
  • the composition contains chelating agent in combination with from 0.1 to 1% by weight of a surfactant which is preferably a combination of amine oxide and alkylpolyglycoside.
  • a surfactant which is preferably a combination of amine oxide and alkylpolyglycoside.
  • the composition is not an aggressive cleaner and is not designed for scrubbing or wiping.
  • the cleaner of WOOO/23553 is described as a rinsing solution which maintains a shower clean after repeated cycles of spray application by keeping deposits in suspension and rinsable from the surfaces during subsequent showers .
  • the present invention provides a pre-moistened wipe suitable for the cleaning of hard surfaces such as floors, and which comprises a substrate incorporating an aqueous composition comprising: (i) from 0.001 to 1% by weight, based on total weight of the composition, of an alkyl alkoxylated sulphate surfactant having the general formula (I) :
  • R is an unsubstituted C 6 -C 20 alkyl or hydroxyalkyl group having a C 5 -C 20 alkyl component, A is an ethoxy or propoxy unit, m is an integer greater than one, and M is a suitable counterion;
  • R ⁇ _ and R 2 are independently C 2 - 6 alkyl or hydrogen, but not both hydrogen, m and n are independently 0-5, EO represents an ethyleneoxy group and PO represents a propyleneoxy group.
  • Wipes according to the invention show both excellent cleaning and superior "end-results" (i.e. no significant residues, streaks or spotting left behind after use) . It has been found that these properties are apparent even at very low levels of active ingredient and with little or no organic solvent, which is surprising in view of the teachings of the prior art discussed above.
  • Wipes of the invention are designed in particular for the cleaning of hard surfaces.
  • hard surfaces are meant those surfaces which are typically found in the household, or in institutional or hospital environments. Examples include lavatory fixtures, lavatory appliances (toilets, bidets, shower stalls, bathtubs and bathing appliances) , wall and flooring surfaces and those surfaces associated with kitchen environments and other environments associated with food preparation.
  • Wipes of the invention are especially suitable for the cleaning of large surface areas such as floors.
  • peel it is meant a disposable substrate such as a porous or absorbent sheet or cloth which has been pre- treated with the aqueous composition as defined above (hereinafter referred to as “the composition of the invention”) so as to incorporate the composition of the invention into or onto the substrate prior to its use by the consumer .
  • This product form is particularly advantageous since it allows for safe and convenient one-step cleaning of surfaces by the user, without the need for dilution, spraying, or post-treatment rinsing.
  • the wipe is formed by absorbing the composition of the invention onto the substrate to form a moist wipe.
  • a batch of wipes can then be placed in a container which can be opened when needed and when closed, sufficiently seals to prevent evaporation of any components from the composition.
  • the composition of the invention is impregnated at the desired weight onto one or both sides of a substrate which may be formed from any woven or nonwoven fibre, fibre mixture or foam of sufficient wet strength and absorbency to hold an effective amount of the composition.
  • Preferable materials used to form the substrate include in general all nonwoven materials with sufficient liquid absorption capacity to contain the aqueous composition of the invention and to deliver it in use.
  • suitable nonwoven materials include fibres from natural sources such as viscose, cellulose, or from synthetic origin such as polypropylene or polyester. Especially suitable are mixtures of these materials such as viscose/polyester, viscose/polypropylene, and cellulose/polyester.
  • latex binders can be added.
  • These latex binders can typically include one or more monomers selected from styrene-2-ethyl hexyl acrylate, butyl acrylate, methyl methacrylate, ethyl acrylate, methyl acrylate, acrylonitrile and vinyl acetate.
  • the materials can be formed into webs using technologies generally known in the art such as carding, drylaid, wetlaid, airlaid and extrusion.
  • Webs can be bonded using technologies known in the art such as needlepunch, stitchbond, hydroentangling, chemical bonding, thermal bonding, spunbinding and meltblowing.
  • the specific weight of the substrate ranges from 40 to 150 grams/sq.m, preferably from 60 to 100 grams/sq.m, most preferably from 75 to 90 grams/sq.m.
  • a commercially available example of a suitable material used to form the substrate is Akena VPE ex Orlandi, (a viscose/polyester material available in different specific weights varying from 40 grams/sq. m to 150 grams/sq. m) .
  • compositions of the invention will typically have ingredient percentages (by weight based on total weight of the composition) as follows:
  • Alkyl alkoxylated sulphate surfactant of formula (I) from 0.002 to 0.5%, preferably from 0.005 to 0.1%, most preferably about 0.05%.
  • Sequestering agent from 0.001 to 0.1%, preferably from 0.005 to 0.05%, most preferably about 0.01 to 0.02%.
  • Organic solvent of formula (II) less than 0.1%, preferably less than 0.01%, preferably 0%.
  • the total content of surfactants present is preferably no greater than 0.2%, more preferably no greater than 0.1%, most preferably no greater than 0.05% (by weight based on total weight of the composition) .
  • the weight ratio of composition of the invention to substrate suitably ranges from 1:1 to 6:1, and is preferably from 1:1 to 4:1, more preferably from 2:1 to 3:1.
  • compositions of the invention will be further described as follows:
  • compositions of the invention are aqueous compositions which preferably contain relatively low levels of actives.
  • the principal ingredient is water, which is normally present at a level of at least 80%, preferably at least 90%, more preferably at least 95%, by weight based on total weight.
  • the use of distilled or demineralised water is preferred, but not essential to the invention.
  • compositions of the invention contain an alkyl alkoxylated sulphate surfactant having the general formula (I) :
  • R is an unsubstituted C 6 -C 20 alkyl or hydroxyalkyl group having a C 6 -C 20 alkyl component
  • A is an ethoxy or propoxy unit
  • m is an integer greater than one
  • M is a suitable counterion.
  • Suitable counterions M include hydrogen or a cation such as an alkali metal cation (e.g., sodium, potassium, lithium, calcium, and magnesium) or ammonium or substituted ammonium (e.g., methyl-, dimethyl-, and trimethyl ammonium cations and quaternary ammonium cations, such as tetramethyl- ammonium and dimethyl piperidinium cations and quaternary ammonium cations derived from alkylamines such as ethylamine, diethylamine, triethylamine, and mixtures thereof) .
  • M is preferably sodium.
  • R is preferably a Cs-Cis alkyl or hydroxyalkyl group, more preferably C 10 -C 16 alkyl or hydroxyalkyl, most preferably C 12 -C 14 alkyl.
  • R can be linear, branched or mixed linear/branched, and is preferably linear.
  • m is preferably between 2 and 6, more preferably 2 or 3 , especially 3.
  • An example of a suitable commercially available alkyl alkoxylated sulphate surfactant is COSMACOL® AES 70-3-24, ex Condea. This material can be described as
  • compositions of the invention contain a sequestering agent.
  • suitable sequestering agents include ethylenediamine tetraacetate, organophosphonic acids and their salts, phosphates and a wide variety of other polyfunctional organic acids and salts.
  • Preferred sequestering agents are organophosphonic acids and their salts, such as those in the DEQUEST® range. Examples include hydroxyethylidene diphosphonic acid (DEQUEST® 2010) , ethylenediamine tetra(methylene-phosphonic acid) (DEQUEST® 2040), diethylene-triamine penta (methylene-phosphonic acid) (DEQUEST® 2060) and their salts.
  • compositions of the invention will generally have a pH of greater than 7, preferably between 8 and 12.
  • the pH of the aqueous composition may fall when in contact with the wipe substrate, however for improved preservation it is preferred that it does not fall below 8.
  • a water soluble base such as an alkali metal hydroxide, (typically sodium hydroxide) is generally used to regulate the pH to the required level.
  • alkali metal hydroxide typically sodium hydroxide
  • compositions of the invention can contain other optional ingredients which aid in their cleaning performance and maintain the physical and chemical stability of the product .
  • Examples include: preservatives, perfumes, colours and dyes, hygiene agents, foam-control agents, viscosity modifying agents and mixtures thereof.
  • a liquid formulation was prepared having ingredients as shown in the following Table :
  • a floor cleaning wipe was formed by impregnating a spunlace substrate with the above liquid formulation.
  • the wipe was used to treat a test surface and gave excellent cleaning performance with substantially no streaks left behind after use. The presence of streaks was significantly reduced in comparison with wipes impregnated with control formulations in which the following alternative surfactants were substituted in place of the COSMACOL® AES 70-3-24:
  • NONIDAC® 103A fatty alcohol ethoxylate based nonionic surfactant, ex Condea

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
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Abstract

Pre-moistened wipe for cleaning hard surfaces such as floors, which comprises a substrate incorporating an aqueous composition comprising: (i) from 0.001 to 1 % by weight, based on total weight of the composition, of an alkyl alkoxylated sulphate surfactant having the general formula (I):RO(A)mSO3M wherein R is an unsubstituted C6-C20 alkyl or hydroxyalkyl group having a C6-C20 alkyl component, A is an ethoxy or propoxy unit, m is an integer greater than one, and M is a suitable counterion; (i) )from 0.001 to 1 % by weight, based on total weight of the composition, of a sequestering agent, and (iii) less than 0.5 % by weight, based on total weight of the composition, of organic solvent having the general formula (II): R1-O-(EO)m-(PO)n-R2 wherein R1 and R2 are independently C2-6 alkyl or hydrogen, but not both hydrogen, m and n are independently 0-5, EO represents an ethyleneoxy group and PO represents a propyleneoxy group.

Description

HARD SURFACE CLEANING WIPE
Technical Field
The present invention relates to a cleaning wipe which is designed in particular for the cleaning of hard surfaces such as are found in the household, or in institutional or hospital environments . The wipe contains a cleaning formulation based on a particular type of anionic surfactant.
Background to the Invention and Prior Art
Various liquid compositions have been described which were designed in particular for the cleaning of hard surfaces without residues, streaking or spotting left behind after use.
EP 0 240 009 describes a pre-moistened wipe for cleaning a hard surface to a substantially streak-free finish comprising a flexible substrate carrying a liquid cleaning composition based on surface active agent, aliphatic alcohol and water. The cleaning composition typically contains from 15 to 25% by weight ethanol .
EP 0 948 892 describes a liquid disinfectant for hard surfaces in which reduced filming or streaking is observed due, it is said, to the presence of a poly (alkylene glycol) alkyl ether. Organic solvents such as ethanol, butyl carbitol and n-butoxypropanol are also included to enhance cleaning. O98/50518 describes aqueous alkaline hard surface cleaners demonstrating superior film/streak performance. The compositions are designed for spray dispensation and are based on a low level of anionic surfactant (preferably alkyl sulphate) in combination with ethanol, at a typical level of 5.0% by weight, and an alkalising agent in order to raise the pH above 12.5.
EP 0 823 937 relates to glass cleaning compositions which impart good cleaning without objectionable levels of filming or streaking which comprise less than 1% by weight of a linear alkyl sulphate detergent surfactant, in combination with water, hydrophobic solvent and non-aqueous polar solvent. The compositions typically contain at least 2% by weight of non-aqueous polar solvent such as ethanol, and at least 2% by weight of hydrophobic solvent such as butoxypropanol .
A problem with the above proposals is that the formulations all contain a significant amount of volatile organic compounds as solvents. As is described in EP 0 604 996, a high alcohol content is traditionally seen as desirable in formulations for cleaning hard surfaces without streaking or spotting. However, environmental and flammability concerns have prompted research into reducing the level of volatile organic compounds in consumer products. The problem then arises that adding other ingredients to compensate for the reduced alcohol content is associated with a "streak" effect on the surface once the liquid dries due to residues left behind. The solution proposed by EP 0 604 996 uses a pre- moistened wiping article comprising a flexible substrate carrying a liquid composition comprising an aqueous solution of from 5 to 15% by weight of a onohydric aliphatic alcohol, preservative and from 0.01 to 1% by weight of an alkylpolyglycoside. This is stated to be a low alcohol content formulation which still achieves the favourable results associated with higher alcohol content formulations.
It can be seen that the formulation of EP 0 604 996 still contains a significant amount of alcohol (typically 6-8% by weight) .
WOOO/23553 provides a surface cleaner for misting showers and bathtubs which does not spot or streak when dry and which is aqueous based and alcohol free. The composition contains chelating agent in combination with from 0.1 to 1% by weight of a surfactant which is preferably a combination of amine oxide and alkylpolyglycoside. According to WOOO/23553, the composition is not an aggressive cleaner and is not designed for scrubbing or wiping. The cleaner of WOOO/23553 is described as a rinsing solution which maintains a shower clean after repeated cycles of spray application by keeping deposits in suspension and rinsable from the surfaces during subsequent showers .
Summary of the Invention
The present invention provides a pre-moistened wipe suitable for the cleaning of hard surfaces such as floors, and which comprises a substrate incorporating an aqueous composition comprising: (i) from 0.001 to 1% by weight, based on total weight of the composition, of an alkyl alkoxylated sulphate surfactant having the general formula (I) :
RO (A) mS03M
wherein R is an unsubstituted C6-C20 alkyl or hydroxyalkyl group having a C5-C20 alkyl component, A is an ethoxy or propoxy unit, m is an integer greater than one, and M is a suitable counterion;
(ii) from 0.001 to 1% by weight, based on total weight of the composition, of a sequestering agent, and
(iii) less than 0.5% by weight, based on total weight of the composition, of organic solvent having the general formula (II) :
R1-0-(EO)m-(PO)n-R2
wherein Rη_ and R2 are independently C2-6 alkyl or hydrogen, but not both hydrogen, m and n are independently 0-5, EO represents an ethyleneoxy group and PO represents a propyleneoxy group.
Wipes according to the invention show both excellent cleaning and superior "end-results" (i.e. no significant residues, streaks or spotting left behind after use) . It has been found that these properties are apparent even at very low levels of active ingredient and with little or no organic solvent, which is surprising in view of the teachings of the prior art discussed above.
Detailed Description of the Invention
Product Form and Ingredient Levels
Wipes of the invention are designed in particular for the cleaning of hard surfaces. By "hard surfaces" is meant those surfaces which are typically found in the household, or in institutional or hospital environments. Examples include lavatory fixtures, lavatory appliances (toilets, bidets, shower stalls, bathtubs and bathing appliances) , wall and flooring surfaces and those surfaces associated with kitchen environments and other environments associated with food preparation.
Wipes of the invention are especially suitable for the cleaning of large surface areas such as floors.
By "wipe" it is meant a disposable substrate such as a porous or absorbent sheet or cloth which has been pre- treated with the aqueous composition as defined above (hereinafter referred to as "the composition of the invention") so as to incorporate the composition of the invention into or onto the substrate prior to its use by the consumer .
This product form is particularly advantageous since it allows for safe and convenient one-step cleaning of surfaces by the user, without the need for dilution, spraying, or post-treatment rinsing.
Typically the wipe is formed by absorbing the composition of the invention onto the substrate to form a moist wipe. A batch of wipes can then be placed in a container which can be opened when needed and when closed, sufficiently seals to prevent evaporation of any components from the composition. The composition of the invention is impregnated at the desired weight onto one or both sides of a substrate which may be formed from any woven or nonwoven fibre, fibre mixture or foam of sufficient wet strength and absorbency to hold an effective amount of the composition.
Preferable materials used to form the substrate include in general all nonwoven materials with sufficient liquid absorption capacity to contain the aqueous composition of the invention and to deliver it in use.
Illustrative examples of suitable nonwoven materials include fibres from natural sources such as viscose, cellulose, or from synthetic origin such as polypropylene or polyester. Especially suitable are mixtures of these materials such as viscose/polyester, viscose/polypropylene, and cellulose/polyester.
Optionally one or more latex binders can be added. These latex binders can typically include one or more monomers selected from styrene-2-ethyl hexyl acrylate, butyl acrylate, methyl methacrylate, ethyl acrylate, methyl acrylate, acrylonitrile and vinyl acetate. The materials can be formed into webs using technologies generally known in the art such as carding, drylaid, wetlaid, airlaid and extrusion.
Webs can be bonded using technologies known in the art such as needlepunch, stitchbond, hydroentangling, chemical bonding, thermal bonding, spunbinding and meltblowing.
Preferably the specific weight of the substrate ranges from 40 to 150 grams/sq.m, preferably from 60 to 100 grams/sq.m, most preferably from 75 to 90 grams/sq.m.
A commercially available example of a suitable material used to form the substrate is Akena VPE ex Orlandi, (a viscose/polyester material available in different specific weights varying from 40 grams/sq. m to 150 grams/sq. m) .
Compositions of the invention will typically have ingredient percentages (by weight based on total weight of the composition) as follows:
Alkyl alkoxylated sulphate surfactant of formula (I) : from 0.002 to 0.5%, preferably from 0.005 to 0.1%, most preferably about 0.05%.
Sequestering agent: from 0.001 to 0.1%, preferably from 0.005 to 0.05%, most preferably about 0.01 to 0.02%.
Organic solvent of formula (II) : less than 0.1%, preferably less than 0.01%, preferably 0%. Water: at least 80%, preferably at least 90% , most preferably at least 95%.
In the composition of the invention, the total content of surfactants present is preferably no greater than 0.2%, more preferably no greater than 0.1%, most preferably no greater than 0.05% (by weight based on total weight of the composition) .
In a wipe according to the invention, the weight ratio of composition of the invention to substrate suitably ranges from 1:1 to 6:1, and is preferably from 1:1 to 4:1, more preferably from 2:1 to 3:1.
Compositions
The ingredients of the compositions of the invention will be further described as follows:
Water
Compositions of the invention are aqueous compositions which preferably contain relatively low levels of actives. Typically the principal ingredient is water, which is normally present at a level of at least 80%, preferably at least 90%, more preferably at least 95%, by weight based on total weight. The use of distilled or demineralised water is preferred, but not essential to the invention. Alkyl Alkoxylated Sulphate Surfactant
Compositions of the invention contain an alkyl alkoxylated sulphate surfactant having the general formula (I) :
RO (A) mS03M
wherein R is an unsubstituted C6-C20 alkyl or hydroxyalkyl group having a C6-C20 alkyl component, A is an ethoxy or propoxy unit, m is an integer greater than one, and M is a suitable counterion.
Suitable counterions M include hydrogen or a cation such as an alkali metal cation (e.g., sodium, potassium, lithium, calcium, and magnesium) or ammonium or substituted ammonium (e.g., methyl-, dimethyl-, and trimethyl ammonium cations and quaternary ammonium cations, such as tetramethyl- ammonium and dimethyl piperidinium cations and quaternary ammonium cations derived from alkylamines such as ethylamine, diethylamine, triethylamine, and mixtures thereof) . M is preferably sodium.
R is preferably a Cs-Cis alkyl or hydroxyalkyl group, more preferably C10-C16 alkyl or hydroxyalkyl, most preferably C12-C14 alkyl. R can be linear, branched or mixed linear/branched, and is preferably linear.
m is preferably between 2 and 6, more preferably 2 or 3 , especially 3. An example of a suitable commercially available alkyl alkoxylated sulphate surfactant is COSMACOL® AES 70-3-24, ex Condea. This material can be described as
RO- (CH2CH20) 3S03Na where R is linear C12-14 alkyl.
Sequestering Agent
Compositions of the invention contain a sequestering agent. Suitable sequestering agents include ethylenediamine tetraacetate, organophosphonic acids and their salts, phosphates and a wide variety of other polyfunctional organic acids and salts. Preferred sequestering agents are organophosphonic acids and their salts, such as those in the DEQUEST® range. Examples include hydroxyethylidene diphosphonic acid (DEQUEST® 2010) , ethylenediamine tetra(methylene-phosphonic acid) (DEQUEST® 2040), diethylene-triamine penta (methylene-phosphonic acid) (DEQUEST® 2060) and their salts.
pH
Compositions of the invention will generally have a pH of greater than 7, preferably between 8 and 12. The pH of the aqueous composition may fall when in contact with the wipe substrate, however for improved preservation it is preferred that it does not fall below 8.
A water soluble base such as an alkali metal hydroxide, (typically sodium hydroxide) is generally used to regulate the pH to the required level. Optional Ingredients
Compositions of the invention can contain other optional ingredients which aid in their cleaning performance and maintain the physical and chemical stability of the product .
Examples include: preservatives, perfumes, colours and dyes, hygiene agents, foam-control agents, viscosity modifying agents and mixtures thereof.
The invention will now be illustrated by the following non- limiting Examples, in which all percentages are by weight based on total weight, unless otherwise indicated.
EXAMPLE
A liquid formulation was prepared having ingredients as shown in the following Table :
Figure imgf000012_0001
A floor cleaning wipe was formed by impregnating a spunlace substrate with the above liquid formulation.
The wipe was used to treat a test surface and gave excellent cleaning performance with substantially no streaks left behind after use. The presence of streaks was significantly reduced in comparison with wipes impregnated with control formulations in which the following alternative surfactants were substituted in place of the COSMACOL® AES 70-3-24:
* NONIDAC® 103A (fatty alcohol ethoxylate based nonionic surfactant, ex Condea)
* LIAL® 111 (10EO) (fatty alcohol ethoxylate based nonionic surfactant, ex Condea) * Alkyl ether sulphate (1EO)
Streaking was also significantly reduced in comparison to a wipe impregnated with a control formulation consisting purely of demineralised water.
These results are particularly surprising given that the formulation of the Example has such low levels of active ingredient and is free of organic solvent.

Claims

1. A pre-moistened wipe suitable for the cleaning of hard surfaces such as floors, and which comprises a substrate incorporating an aqueous composition comprising :
(i) from 0.001 to 1% by weight, based on total weight of the composition, of an alkyl alkoxylated sulphate surfactant having the general formula
(I) :
RO (A) mS03M
wherein R is an unsubstituted Cg-C20 alkyl or hydroxyalkyl group having a C5-C20 alkyl component, A is an ethoxy or propoxy unit, m is an integer greater than one, and M is a suitable counterion;
(ii) from 0.001 to 1% by weight, based on total weight of the composition, of a sequestering agent, and
(iii) less than 0.5% by weight, based on total weight of the composition, of organic solvent having the general formula (II) :
Rχ-0- (EO)m- (PO)n-R2 wherein Rτ_ and R are independently C2-6 alkyl or hydrogen, but not both hydrogen, m and n are independently 0-5, EO represents an ethyleneoxy group and PO represents a propyleneoxy group.
2. A wipe according to claim 1, in which R in formula (I) is a linear C12 -C14 alkyl group and m in formula ( I ) is
3 .
3. A wipe according to claim 1 or , in which the sequestering agent is an organophosphonic acid or salt thereof .
4. A wipe according to any of claims 1 to 3 , in which the aqueous composition has a pH of from 8 to 12.
5. A wipe according to any of claims 1 to 4 , in which the aqueous composition has ingredient percentages (by weight based on total weight of the aqueous composition) as follows:
Alkyl alkoxylated sulphate surfactant of formula (I) : from 0.002 to 0.5%, preferably from 0.005 to 0.1%, most preferably about 0.05%.
Sequestering agent: from 0.001 to 0.1%, preferably from 0.005 to 0.05%, most preferably about 0.01 to 0.02%.
Organic solvent of formula (II) : less than 0.1%, preferably less than 0.01%, preferably 0%.
6. A method of cleaning hard surfaces such as floors comprising wiping the hard surface with a wipe according to any one of claims 1 to 5.
7. Use of a wipe according to any one of claims 1 to 5 for cleaning hard surfaces such as floors.
PCT/EP2002/004587 2001-05-08 2002-04-25 Hard surface cleaning wipe WO2002090484A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002312854A AU2002312854A1 (en) 2001-05-08 2002-04-25 Hard surface cleaning wipe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0111174.9 2001-05-08
GBGB0111174.9A GB0111174D0 (en) 2001-05-08 2001-05-08 Hard surface cleaning wipe

Publications (2)

Publication Number Publication Date
WO2002090484A2 true WO2002090484A2 (en) 2002-11-14
WO2002090484A3 WO2002090484A3 (en) 2007-10-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/004587 WO2002090484A2 (en) 2001-05-08 2002-04-25 Hard surface cleaning wipe

Country Status (4)

Country Link
AR (1) AR033713A1 (en)
AU (1) AU2002312854A1 (en)
GB (1) GB0111174D0 (en)
WO (1) WO2002090484A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100286013A1 (en) * 2005-10-24 2010-11-11 Bruner Eric L Chemical wipes
CN111454784A (en) * 2020-04-30 2020-07-28 中山榄菊日化实业有限公司 Floor cleaning agent and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0067016A1 (en) * 1981-05-29 1982-12-15 Unilever Plc Article suitable for wiping hard surfaces
EP0240009A2 (en) * 1986-04-02 1987-10-07 Sterling Drug Inc. Pre-moistened wipe
WO1999019449A1 (en) * 1997-10-14 1999-04-22 The Procter & Gamble Company Hard surface cleaning compositions comprising mid-chain branched surfactants
WO2000061106A1 (en) * 1999-04-13 2000-10-19 The Procter & Gamble Company Antimicrobial wipes which provide improved immediate germ reduction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0067016A1 (en) * 1981-05-29 1982-12-15 Unilever Plc Article suitable for wiping hard surfaces
EP0240009A2 (en) * 1986-04-02 1987-10-07 Sterling Drug Inc. Pre-moistened wipe
WO1999019449A1 (en) * 1997-10-14 1999-04-22 The Procter & Gamble Company Hard surface cleaning compositions comprising mid-chain branched surfactants
WO2000061106A1 (en) * 1999-04-13 2000-10-19 The Procter & Gamble Company Antimicrobial wipes which provide improved immediate germ reduction

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100286013A1 (en) * 2005-10-24 2010-11-11 Bruner Eric L Chemical wipes
US8445423B2 (en) * 2005-10-24 2013-05-21 Aculon, Inc. Chemical wipes
CN111454784A (en) * 2020-04-30 2020-07-28 中山榄菊日化实业有限公司 Floor cleaning agent and preparation method thereof

Also Published As

Publication number Publication date
AR033713A1 (en) 2004-01-07
WO2002090484A3 (en) 2007-10-25
GB0111174D0 (en) 2001-06-27
AU2002312854A8 (en) 2008-01-03
AU2002312854A1 (en) 2002-11-18

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