ES2674577T3 - Highly viscous detergent emulsion - Google Patents

Abstract

A concentrated liquid cleaning composition in the form of a thickened aqueous emulsion having a continuous aqueous phase and a dispersed phase, the composition comprising a phase stable thickened emulsion, comprising: (a) an effective amount of dirt removal comprising 50% by weight of an alkalinity source; (b) an effective amount of dirt removal comprising from 10 to 30% by weight of a non-ionic surfactant; (c) an effective amount of water conditioning or sequestering activity comprising from 0.1 to 10% by weight of a water conditioning agent or sequestering agent; (d) an effective thickener amount of polyacrylic acid comprising from 5 to 25% by weight; and (e) an effective stabilizing and thickening amount of fatty acid comprising from 0.25 to 5% by weight; wherein the dispersed phase comprises at least a portion of the non-ionic surfactant and the emulsion concentrate has a shear thinning that allows dispensing during manufacture and use and the viscosity comprises more than 100 Pa · s at 20 ° C using a Bohlin CVO rheometer measurement in rotary shear mode at the shear rate of 0.2 per second; wherein the composition has a low water content and a high concentration of active ingredients of more than 60% by weight based on the concentrate composition.

Description

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DESCRIPTION

Highly viscous detergent emulsion Field of the invention

The invention relates to a stable alkaline cleaning concentrate or composition in a high viscosity phase characterized by a reduced water concentration (a high concentration of active materials such as alkalinity and surfactants) and methods of their use and preparation. In industrial or institutional applications, the materials are stable in phase, have a very high viscosity, however, they can continue to be supplied by automatic or programmable dispensers to a place of use where they are easily mixed with water in a place of use to form a aqueous cleaner Thickened emulsions are easily produced and are effective in removing dirt in laundry applications, washing utensils, cleaning in place and dairy products. The compositions provide enhanced or enhanced dirt removal properties due to high alkaline and surfactant contact.

Background of the invention

The cleaning compositions have been formulated as a solid, particulate and liquid block. Solid forms provide high concentrations of assets, but they must be dissolved in water to form a cleaning liquid.

WO 96/27000 patent document refers to a concentrated liquid gel detergent composition for washing utensils containing from 5% to 30% by weight of an alkaline polyphosphate, from 8% to 50% by weight of a source alkalinity, from 0% to 5% by weight of a surface active agent, from 0.1% to 2% by weight of a hydrophilic crosslinked polycarboxylate thickening agent, from 0.1% to 2% by weight of an agent hydrogen bonding for the polycarboxylate, and 0 to 15% of a polyacrylate, the rest being water.

WO 2007/101470 A1 refers to a liquid detergent concentrate composition comprising an emulsion having an aqueous phase and an oil phase, the composition comprising 5-30% by weight of one or more alkalinity sources 1- 70% by weight of at least one non-ionic surfactant 0.01-10% by weight of at least one cross-linked or partially cross-linked polyacrylic acid or polymethacrylic acid.

EP 0953631 A1 refers to an alkaline emulsion detergent composition with improved phase stability, useful viscosity and excellent dirt removal properties that can comprise in an aqueous phase, an emulsion comprising an alkalinity source, a mixture of non-ionic surfactants, a water conditioning agent and an alkyl polyglucoside. Enhanced stable emulsions can be used in laundry applications or other dirt removal procedures. The compositions are typically prepared by forming a non-ionic alkaline mixture that combines the mixture with a water conditioning agent and the alkyl polyglucoside and shearing the resulting aqueous mixture to form an emulsion characterized by a preferred particle size and viscosity.

In recent years, considerable attention has been given to liquid detergent concentrates and, in particular, to emulsion detergent liquids. Such detergent concentrates are generally not as active as solids and are often more than 50% water. Detergent emulsion concentrates have been used as multipurpose cleaners, utensil washing detergents and in formulations for cleaning hard surfaces by diluting the concentrate with water.

The typical emulsion liquid has less than 60% active ingredients, less than 10% surfactants less than 30-40% alkalinity. Many of the emulsions of the prior art are not sufficiently stable in terms of the phases, which means that they do not remain globally homogeneous for storage and use in a variety of applications, have a reduced concentration of active ingredients (they comprise more than 50% water) or show reduced properties compared to other useful forms of detergent or are difficult to manufacture, dispense or store. Many prior art emulsions have a relatively low caustic content and relatively low content of sequestrants and surfactants.

Substantial attention has been directed to concentrated materials that have a substantially increased active ingredient content that can be produced as stable liquids. There is a need to boost the active concentrate of the detergent components in the emulsion from 60 to 65% to provide the efficiency and performance of the solids. These liquids must have a stable viscosity and a manipulable viscosity so that the liquid can be reliably supplied from a source of the material to a place of use such as a laundry machine. The authors of the present invention have discovered that, if the materials of the prior art simply increase in concentration without the introduction of a new technology, the resulting materials do not form simple solutions nor form stable phase emulsions. While the prior art describes a variety of liquid emulsion detergent compositions that can be used in a variety of ways, the prior art does not provide a highly alkaline, highly viscous, stable composition with a cleaning composition with high content of active ingredients. that is easy to produce, that has acceptable cleaning properties in laundry, washing of utensils and other uses, and that is dispensable due to its

shear thinning characteristics in specialized detergent dispensers and that is compatible with typical industrial or institutional cleaning equipment. The authors have covered a substantial need to improve the stability of the composition with desirable cleaning properties by improving formulations and manufacturing methods. A substantially improved thickened emulsion detergent composition, the methods of its use and the methods of preparation have been discovered and are described below.

Compendium of the invention

The authors of the present invention have discovered a highly viscous and highly alkaline enhanced detergent composition that has a high content of active ingredients. The composition comprises a thickening system compatible with the high alkalinity formula which results in a composition with high viscosity that shows shear thinning. The composition of the invention is particularly novel since its rheology is unique. The composition can be defined as a solid when no shear is applied, but once the shear is applied, the composition begins to flow. The composition comprises from 15 to 50% by weight of an alkalinity source, from 10 to 30% by weight of one or more non-ionic surfactants, from 0.1 to 10% by weight of a sequestering or water conditioning agent, a optional alkyl polyglucoside surfactant and a thickener system comprising from 0.25 to 5% by weight of a fatty acid and from 5 to 25% by weight of a polyacrylic acid, wherein the resulting stable compositions are characterized by a low content of water, a high concentration of active ingredients of more than 60% by weight based on the composition of concentrate, high alkalinity, and a viscosity greater than 250 Pas (250,000 centipoise) at 20 ° C using a Bohlin CVO rheometer measured in shear mode rotating at a shear rate of 0.2 20 per second. This enhanced detergent can be used for a variety of applications, but is preferably used in laundry applications. The authors of the present invention have achieved cleansing formulations comprising more than 30% by weight of the combined alkaline source and surfactant loading.

According to the invention, a concentrated liquid cleaning composition is provided in the form of an aqueous thickened emulsion having a continuous aqueous phase and a dispersed phase, the composition comprising a stable phase thickened emulsion, comprising:

(a) an effective amount of dirt removal comprising 15 to 50% by weight of an alkalinity source;

(b) an effective amount of dirt removal comprising from 10 to 30% by weight of a non-ionic surfactant;

30 (c) an effective amount of water conditioning or sequestering activity comprising from 0.1 to 10% in

weight of a water conditioning agent or sequestrant;

(d) an effective thickener amount of polyacrylic acid comprising from 5 to 25% by weight; Y

(e) an effective stabilizing and thickening amount of fatty acid comprising from 0.25 to 5% by weight;

wherein the dispersed phase comprises at least a portion of the non-ionic surfactant and the emulsion concentrate 35 has a shear thinning that allows distribution during manufacture and use and the viscosity comprises more than 100 Pa at 20 ° C using a rheometer Bohlin CVO measured in rotary shear mode at the shear rate of 0.2 per second; wherein the composition has a low water content and a high concentration of active ingredients of more than 60% by weight based on the concentrate composition.

40 In laundry applications, dirty articles are contacted with an aqueous liquid cleaning liquor comprising a significant proportion of water and 0.5 to 3.0 ppm of the emulsion detergent. The clothing is contacted with the wash liquor at an elevated temperature of 25 ° C to 80 ° C for a period of time to remove dirt. Dirt and used liquor are rinsed after clothing in a rinse cycle. The improved detergents of the invention are made by a process comprising the steps of combining the non-ionic surfactant or the mixture of surfactant with anionic surfactants, chelating components and various other textile detergent components. To this mixture, the alkalinity sources followed by the polyacrylic acid are added. Using standard mixing tanks, all components are mixed briefly until the product is homogeneous, at which point it is filled and allowed to reach its final viscosity as described above. In non-laundry applications, small adjustments can be made to the formulation, such as the selection of a suitable surfactant system, to be suitable for washing utensils, or for cleaning hard surfaces.

For the purposes of this patent application, the term "thickened emulsion" defines a substance that behaves like a solid until a sufficiently large load or effort is applied, at which point it flows as a fluid. Rheologically, a thickened emulsion is a viscoplastic material that behaves like a rigid body at low stresses but flows like a viscous fluid at high stress. The thickened emulsions of the invention comprise two immiscible liquids. For the purposes of the invention, the continuous phase is substantially composed of caustic salts and other components dissolved in an aqueous medium. However, since no

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Additional water is added to the compositions of the invention, the thickened emulsions of the invention result in a composition having a substantially low aqueous phase or a low water content. For the purposes of this invention, "emulsion" and "thickened emulsion" are used interchangeably. However, it is noted that when generally used in the art, the term "emulsion" refers to compositions that have substantially lower viscosities than those of the present invention.

Without being limited by theory, as mentioned above, it is believed that the thickened emulsions of the invention are composed of two limitedly miscible liquid phases. The compositions of the invention may comprise a third solid particulate material composed substantially of carboxymethyl cellulose or one or more optical brighteners, if any, to formulate the thickened emulsions of the invention. If a third phase exists, it is believed that this discrete phase includes particles in the range of 1 micrometer to 100 micrometers; however, the compositions of the invention may include substantially larger particles that include those measuring more than 100 micrometers.

The insoluble or non-water soluble part, typically a liquid non-ionic surfactant, forms dispersed droplets having a particle size of less than 10, less than 5 micrometers, preferably between 0.5 and 8 micrometers. The stable phase implies that under typical conditions of manufacture, storage and use, the dispersed phase does not substantially lose its finely divided form and does not separate from the aqueous phase to the point that the material is not useful in a laundry or other purpose of cleaning. A small amount of separation can be tolerated provided that the thick emulsion retains more than 98% of the discontinuous phase (predominantly organic materials) in small emulsified form and provides a cleaning activity.

The aqueous materials of the invention typically involve the emulsification of a relatively insoluble product, typically an organic phase and an aqueous phase. The organic phase may contain one or more components such as surfactants, water conditioning agents, brighteners, etc., while the aqueous phase may contain, in an aqueous medium, water soluble components such as sodium hydroxide, water conditioning agents. , brighteners, dyes and other components. The materials are typically prepared by dispersing the relatively "oily" organic insoluble phase in the aqueous phase stabilized by an emulsion stabilizing composition with the application of shear. In this invention, the emulsion stabilizer typically comprises polyacrylic acid in combination with a fatty acid in an amount that can enhance a stable thick emulsion. The authors of the present invention have discovered that alkyl polyglycoside (APG) surfactants can be added to improve emulsion stabilization. In another embodiment, the authors have discovered that emulsion stabilizers are polyacrylic acid in combination with an anionic surfactant that are sufficiently soluble in sodium hydroxide and enhance the formation of small particles in the typical organic phase used in thickened emulsions of the invention. The authors have discovered that simple mixtures of aqueous sodium hydroxide and non-ionic surfactant such as an alkyl ethoxylate without an emulsion stabilizer will quickly separate into two separate phases. Said surfactants have low solubility in sodium hydroxide while sodium hydroxide is insoluble in this organic compound. The process useful for forming the dispersions of the invention involves combining one or more ethoxylated fatty alcohols with alkyl polyglucoside, carboxymethyl cellulose and resin oil. The APG can be added at this time and the contents of the container can be strongly shaken. Any optical brightener is added to the described combination and then aqueous caustic, typically 50% by weight aqueous caustic, is added to a large metal container containing a stirring apparatus. Monoethanolamine is added to the combination followed by polyacrylic acid as the final ingredient.

Although the main emphasis is on laundry detergents, this emulsion concept could also be applied in other applications. These would include washing utensils and equipment, cleaners and disinfectants to clean on site, in the food and dairy sector. In general, this emulsion concept could be used in any formulation in which relatively insoluble nonionic surfactants are mixed with caustic solutions to form a thickened emulsion with balanced properties for the selected end use. Low foaming surfactants may comprise nonionic compounds such as ethoxylated linear alcohols (Lutensol® available from BASF located in Ludwigshafen, Germany), particularly C13-C15 ethoxylated fatty alcohols having 2 to 10 polyethylene oxide groups . Thickening agents useful in the invention include a combination of linear polyacrylic acid such as Acusol® (Rohm & Haas) and a fatty acid such as resin oil.

Brief description of the figures

Figures 1-2 each have an x axis and a y axis. The x-axis in Figure 1 is the shear rate, in Figure 2 the concentration deviation of a standard mixture. The y axis is the viscosity in both cases.

Figure 1 is a graph illustrating the decreasing viscosity of a composition of the invention with increasing shear rate.

Figure 2 is a graph illustrating the effect of the concentration variation of some of the ingredients on viscosity.

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Detailed analysis of the invention

The term "surfactant" or the term "surface active agent" refers to an organic chemical component that when added to a liquid changes the properties of that liquid on a surface.

The terms OE, OP, or OE / OP as used herein refer to ethylene oxide and propylene oxide, respectively. OE / OP refers to ethylene oxide and propylene oxide groups.

The term "substantially free" may refer to any component that the composition of the invention lacks or for the most part lacks. When referring to "substantially free", it is intended that the component is not intentionally added to the compositions of the invention. The use of the "substantially free" expression of a component allows trace amounts of that component to be included in the compositions of the invention because they are present in another component. However, it is recognized that only trace or minimum amounts of a component will be allowed when the composition is said to be "substantially free" of that component.

It is assumed herein that all numerical values are modified by the term "," whether or not they are explicitly indicated. The term "" generally refers to a range of numbers that a person skilled in the art would consider equivalent to the value cited (that is, having the same function or result). In many cases, the terms "" may include numbers that are rounded to the nearest significant figure.

Weight percent, weight percentage, weight%, and the like are synonyms that refer to the concentration of a substance such as the weight of that substance divided by the weight of the composition and multiplied by 100.

Unless otherwise indicated, all weight percentages provided herein reflect the weight percentage of the raw material as provided by the manufacturer. The percentage of active ingredient weight of each component is easily determined from the information provided through the use of product data sheets provided by the manufacturer.

Traditionally, emulsions have referred to systems of two isotropic liquids, substantially Newtonian, one being dispersed in the other in the form of small droplets. The system is stabilized by absorbed amphiphiles that modify the interfacial properties. However, the authors of this invention have discovered that a large number of emulsions act in more than two phases. An analysis of emulsions and emulsion stability will begin with the traditional two-phase system. An emulsion is formed when two immiscible liquids, usually water and oil, for example, are stirred so that one liquid forms droplets dispersed within the other liquid. The emulsions are stabilized by a compound adsorbed on the interface. This compound is called "emulsifier." These are molecules that have both polar and non-polar parts and serve to close the gap between the two immiscible liquids. For example, in an oil and water emulsion, the polar part of an emulsifier is soluble in the water phase, while the non-polar part is soluble in the oil phase. In general, the formation of an emulsion or emulsification involves breaking the large drops into smaller ones due to shear forces.

In order to analyze the stability of emulsions, it is necessary to first analyze how an emulsion fails. The initial stage in the emulsion failure is known as flocculation, in which the individual droplets join together, but are still separated by a thin film of the continuous phase. The next stage is coalescence, in which the thin liquid film between the individual drops is destabilized, allowing large drops to form. As coalescence continues, the emulsion separates into an oil layer and an aqueous layer. In general, emulsions stabilize by slowing the destabilization or flocculation procedure. This can be done by reducing the mobility of the drops, increasing the viscosity or by inserting an energy barrier between the droplets. In the invention, the size of the droplets or particles of the dispersed phase is less than 10 micrometers, preferably less than 5 micrometers in diameter.

Rheological characteristics

The compositions of the invention are particularly unique in their rheological characteristics. The inventors have characterized their invention as a "thickened emulsion" despite the fact that the compositions of the invention behave differently than any currently known emulsion. The compositions are characterized as emulsions because they are composed of at least two immiscible phases as is commonly known in the art of emulsions. However, thickened emulsions of the invention show characteristics of a solid when not under shear. The thickened emulsions of the invention have a viscosity of more than 1,000 Pas at zero shear. As the shear increases, the rheology of the composition of the invention changes substantially until, when the compositions of the invention that are under high shear, have properties of a liquid.

The compositions of the invention have an unusually high viscosity. In one embodiment, the thickened emulsions of the invention show a viscosity of more than 100 Pas at 20 degrees Celsius when using a Bohlin CVO rheometer measured in a rotating shear mode at the shear rate of 0.2 per second. In other embodiments, the thickened emulsions of the invention have a viscosity greater than 300 Pa.s,

greater than 500 Pa.s, greater than 700 Pa.s, greater than 900 Pas, greater than 1,100 Pas, greater than 1,300 Pas, to greater than 1,500 Pa at 20 degrees Celsius when measured using a Bohlin CVO rheometer measured in mode of Rotary shear at a shear rate of 0.2 per second. The viscosity of the compositions of the invention can be designed to suit a specific use or dispensing system. In general, as the amount of thickening agents such as fatty acid and polyacrylic acid increases, so does the

viscosity of the composition.

It has been found that fatty acids, polyacrylates positively influence the viscosity of the present invention. Compositions prepared in another manner according to the invention, except that they lack fatty acids, are viscous fluids with viscosities of 10 Pas when taken at 0.2s-1. Increasing the content of fatty acids from 0% to 1% results in a continuous increase in shear viscosity to several hundred

from Pas along with changing the appearance of a fluid fluid to a solid gel or paste. Similar observations are made when the concentration of polyacrylic acid is modified. As mentioned before, without polyacrylic acid, the composition appears as a viscous liquid with shear viscosity below 10 Pas (0.2 s-1). With the concentration of polyacrylic acid between 5 and 8 weight percent, the composition is converted into a paste that results in viscosities in the range of 100-1,000 Pas (0.2s-1).

Alkalinity source

An alkalinity source is needed to control the pH of the use detergent solution. The alkalinity source is selected from the group consisting of alkali metal hydroxide, such as sodium hydroxide, potassium hydroxide or mixtures thereof; an alkali metal silicate such as sodium metasilicate and carbonate salts can also be used. The preferred source, which is the most affordable commercially available sodium hydroxide that can be obtained in aqueous solutions in a concentration of 50% by weight and in a variety of solid forms in different particle sizes. Sodium hydroxide can be used in the invention in liquid or solid form or a mixture of both. Other sources of alkalinity are useful, but are not limited to the following: alkali metal carbonates, alkali metal bicarbonates, alkali metal sesquicarbonates, alkali metal borates and alkali metal silicate. In one embodiment, between 40 and 80 percent by weight, between 45 and 75 percent by weight, and between 50 and 70 percent by weight sodium hydroxide (50% active ingredients) is included in the composition of the invention. .

Nonionic Surfactant

Conventional non-ionic detersive surfactants that can be used with the invention include ethoxylated alcohols. A combination of non-ionic surfactants is preferred. These include linear and branched ethoxylated alcohols. Suitable ethoxylated alcohols include those having between 5 and 10 OE, between 6 and 8 OE and a linear ethoxylated alcohol having between 1 and 6 OE, between 2 and 5 OE. Examples of these include ethoxylated C13-C15 fatty alcohol (7OE) commercially available as Lutensol® AO7 and ethoxylated C13-C15 fatty alcohol (3OE) commercially available as Lutensol® AO3, both available from BASF. The dehydrol surfactants available from Cognis and the Malipal surfactants available from Sasol are also useful in the present invention. Lutensol® surfactants are oxo-alcohol ethoxylates that are synthetic alcohols. Still other examples of nonionic surfactants suitable for use in the present invention include, but are not limited to, ethylene oxide / propylene oxide copolymers, ethylene oxide / propylene oxide / ethylene oxide copolymers, oxide copolymers propylene / ethylene oxide / propylene oxide (such as those available under BASF's Pluronics and Pluronics R brand, surfactants sold under BASF's Plurafacs brand and those sold under BASF's Polytergents brand).

In one embodiment, the compositions of the invention include between 5 and 35 percent by weight of non-ionic surfactant or mixture of non-ionic surfactants, between 10 and 30 percent by weight, and between 15 and 25 percent by weight. In another embodiment, the composition comprises between 2 and 25 percent by weight, between 5 and 20 percent by weight, and between

8 and 17 percent by weight of a first non-ionic surfactant; and between 0.5 and 15 percent by weight, between 2 and 13 percent

weight percent, and between 5 and 10 weight percent of a second non-ionic surfactant.

Stabilizing agents

Alkyl polyglucoside surfactant

The present authors have discovered that the thickened emulsions of the invention are stabilized using a soap and polyacrylic acid and the alkyl polyglycosides optionally improve the consistency, stability and homogeneity of the thickened emulsions of the invention. Said surfactants have a strongly hydrophobic alkyl group with a strongly hydrophilic glycoside group which can have its hydrophilicity modified by the presence of ethylene oxide groups. The authors have discovered that these materials are effective emulsion stabilizing agents when the material is soluble in the aqueous phase and can enhance the 55 small particle size emulsions. The alkyl polyglucoside, Glucopon 215 contains a hydrophobic group with a linear alkyl chain from Ce to C10. This material has good solubility in sodium hydroxide solutions. There are other commercially available alkyl polyglycosides with different alkyl and DP groups. The general class of alkyl polyglycosides produces a low interfacial tension between mineral oil and water. The interfacial low voltage is

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probably responsible for the success of these surfactants in stabilizing the thickened emulsion. The system used is different from the typical emulsion. The oil phase is the surfactant (ethoxylated fatty alcohol) while the aqueous phase is the solution of sodium hydroxide together with other materials. Without being conditioned by the theory, it is believed that the surfactant drops are stabilized by the presence of a surfactant at the interface and the unusually high viscosity of the system. The surfactant (ethoxylated fatty alcohol) has essentially no solubility in the sodium hydroxide solution and sodium hydroxide has essentially no solubility in the surfactant phase.

The alkyl polyglucoside is a surfactant useful as an emulsifier and is known from the literature that reduces the interfacial tension between the sodium hydroxide solution phase and the surfactant phase. With this general concept, it can be envisioned that other surfactants can be used and that they would stabilize the thickened emulsion in these systems if they reduced the interfacial tension of the sodium hydroxide solution with a surfactant. In one embodiment, the compositions of the invention optionally comprise between 0.01 and 10 percent by weight of alkyl polyglycoside, between 0.5 to between 8 percent by weight, and between 1 and 5 percent by weight (50% ingredient active).

It has been found that alkyl polyglycosides ("APG") have a thickening, stabilizing, and synergistic homogenization effect when used in combination with certain other thickening agents. In one embodiment, APG is used in combination with a fatty acid and / or a polyacrylic acid. In another embodiment, the APG is used in combination with a polyacrylate copolymer. In yet another embodiment, APG is used in combination with an ethoxylated alcohol and / or an acrylic acid polymer and / or a polyacrylic acid. Each of these thickening agents is analyzed in more detail below.

Thickening agents

Fatty acid

It has surprisingly been found that the combination of fatty acid with polyacrylic acid and optionally alkyl polyglucoside in the present formulation provides a composition having a sufficiently high viscosity, improved homogeneity and stability even at the high alkalinity required. At high pH and high caustic content in the formulation of the invention, it was found that other thickening agents widely known in the industry such as CMC, guar gums, xanthan gums, polyethylene glycol, to name a few, decompose and, therefore, They are ineffective in creating a high viscosity formulation. It is unusual for a composition having a high caustic content and high alkalinity to reach a high viscosity as shown by the compositions of the present invention.

A fatty acid of choice in the compositions of the invention comprises resin oil. Resin oil is also known as a liquid resin and is a dark yellowish resinous oily liquid composed of a mixture of rosins, fatty acids, sterols, high molecular weight alcohols, and other alkyl chain materials. The crude resin oil is distilled in rosin of resin oil (which has a rosin content of 10-35%), the subsequent refining of fatty acid from resin oil (rosin content of 1 to 10%). Resin oil fatty acid is particularly preferred in the compositions of the invention due to its low cost and fluidity. Unlike many other fatty acids, resin oil remains liquid at room temperature

which makes it easier to handle than other fatty acids. Resin oil is an unsaturated fatty acid that

It mainly contains a combination of oleic and linolic acids and, to a lesser extent, palmitic and stearic acids, among others. In embodiments of the invention, the resin oil fatty acid comprises from 0.01 to 5

weight percent, 0.1 to 4 weight percent, and 0.2 to 3 weight percent.

Polyacrylic acids

Polyacrylic acids are also useful as thickening agents in the compositions of the invention. ACUSOL® 445 is a partially neutralized liquid detergent polymer. In the presently more preferred embodiment of the invention, the polyacrylate comprises ACUSOL® 445, a polyacrylic acid with a molecular weight of 4,500 manufactured by Rohm and Haas, Philadelphia, Pennsylvania. Other molecular weight polyacrylic acids 4,500 (CRITERION 2005) and 8000 (CRITERIO) 2108) can be purchased from Kemira Chemicals, Kennesaw, Georgia. Other suitable examples are believed to include Soakalan CP5 available from BASF, Coatex DE185, or Isol Dispersant HN44.

In embodiments of the invention, polyacrylic acid comprises 5 to 25 percent by weight.

Ethoxylated alcohols and acrylic acid polymers

Ethoxylated alcohols are also useful as thickening agents in the compositions of the invention. Ethoxylated isotridecanol is a non-ionic surfactant available as Lutensol® TO 8 from BASF that has been found to be effective in providing thickening, stabilization, and homogeneity to the compositions of the invention. Ethoxylated alcohols such as ethoxylated isotridecanol have improved performance as a thickening agent when combined with a polyacrylic acid such as Accusol® 445 discussed above, and / or an acrylic acid polymer such as Carbopol® ETD 2691 available from Lubrizol Corporation. Carbopol® is a slightly crosslinked polyacrylic acid polymer.

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In one embodiment of the invention, ethoxylated alcohols are present in an amount of 0.5 to 10 percent by weight, 0.75 to 9.5 percent by weight, and 0.9 to 9.0 percent in weigh.

Polyacrylate Copolymer

Polyacrylate copolymers are also useful thickening, stabilizing and homogenizing agents when incorporated into the compositions of the invention. An example of such a copolymer is Cosmedia® available from Cognis. Cosmedia® is an emulsifying copolymer consisting of ethyl and butyl ester of methacrylic acid and acrylic acid.

In one embodiment of the invention, polyacrylate copolymers are present in an amount of 0.5 to 10 percent by weight, 0.75 to 9.5 percent by weight, and 0.9 to 9.0 per weight percent

Water conditioners

The compositions of the invention preferably include water conditioning agents. The thickened emulsion compositions of the invention may comprise a complexing, sequestering or chelating agent of polyvalent metals that aids in the removal of metal compounds and in reducing the harmful effects of the hard components of the service water. Typically, a polyvalent metal compound or cation such as a compound or cation of calcium, magnesium, iron, manganese, molybdenum, etc., or mixtures thereof, may be present in the service water and in complex dirt. Said compounds or cations may comprise a resistant dirt or may interfere in the action both in the washing compositions and in the rinsing compositions during a cleaning procedure. A chelating agent can effectively complex and remove such compounds or cations from dirty surfaces and can reduce or eliminate inappropriate interaction with active ingredients, including non-ionic surfactants and anionic surfactants of the invention. Both organic and inorganic chelating agents are common and can be used. Inorganic chelating agents include compounds such as sodium tripolyphosphate and other species of higher linear and cyclic polyphosphates. Organic chelating agents include both polymeric chelating agents and small molecule chelating agents. Organic small molecule chelating agents are typically organocarboxylate compounds or organophosphate chelating agents. Polymeric chelating agents commonly comprise polyanionic compositions such as polyacrylic acid compounds. Small molecule organic chelating agents include sodium gluconate, sodium glucoheptonate, N-hydroxyethylenediaminetriacetic acid (HEDTA), ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA), diethylenetriaminepentaacetic acid (DTPA), ethylenediaminethiaminetetraacetic acid (thioethenamic acid) and the respective alkali metal, ammonium and substituted ammonium salts thereof, tetrasodium salt of ethylenediaminetetraacetic acid (EDTA), trisodium salt of nitrilotriacetic acid (NTA), disodium salt of ethanediglycine (EDG), sodium salt of diethagolineoline (DEG) ), and 1,3-propylenediaminetetraacetic acid (PDTA), tetrasodium salt of dicarboxymethyl glutamic acid (GLDA), trisodium salt of methylglycine-NN-diacetic acid (MGDA), and sodium salt of iminodisuccinate (IDS). All of these are known and commercially available. Organic small molecule chelating agents also include biodegradable sequestering agents that have combinations of chelation and hydrotrop functionalities of EDG, MGDA and GLDA type molecules. Preferred sequestering agents include the ethhanoldiglycine disodium salt (EDG), the tetrasodium salt of dicarboxymethyl glutamic acid (GLDA), and the trisodium salt of methylglycine-NN-diacetic acid (MGDA), due to its biodegradability and its ability to readily bind with hydrotropes to form ultracompact concentrates. However, other sequestering agents that are suitable for inclusion in the compositions of the invention include anionic polyelectrolytes such as polyacrylates and acrylic acid copolymers, itaconic acid copolymers such as an acrylic / itaconic acid copolymer, maleates, sulphonates and their copolymers, alkali metal gluconates. Other suitable chelating agents are organic phosphonates such as 1-hydroxyethylidene-1,1-diphosphonic acid, amino tri (methylene) phosphonic acid), hexamethylenediamine tetra (methylene phosphonic) acid, diethylenetriamine penta (methylene) phosphonic acid) and 2-phosphonobutane acid -1,2,4-tricarboxylic and other organic phosphonate water conditioning agents commercially available. Most conventional agents seem to work since they are compatible in the continuous phase or drop phase.

In one embodiment, a chelating agent is present in the concentrate of the composition in an amount of between 0.05 and 15 percent by weight, more preferably 1 to 10% by weight, most preferably 3 to 8% by weight. .

Dequest® 2010 can be included in the compositions of the invention as a sequestering or chelating agent. Dequest® 2010 is 1-hydroxyethylidene-1,1-diphosphonic acid, acts as a sequestering agent in the present invention, and is commercially available from ClearTech Industries, Inc., based in Saskatoon, Saskatchewan, Canada. In one embodiment the compositions of the invention comprise between 0.01 and 10 percent by weight of sequestering agent, between 0.5 to between 8 percent by weight, and between 1 and 5 percent by weight (60% active).

Baypure® CX100 can be included in the compositions of the invention as a chelating agent. Baypure® CX100 is a medium intensity complexing agent with low heavy metal remobilization. It is effective in forming iron and copper complexes and calcium ions and is biodegradable. If Baypure® CX100 is included in the compositions of the invention, it is included in an amount of 1 to 30 percent by weight, 2 to 20 percent

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percent by weight, and 3 to 10 percent by weight for 34% of active ingredients in the Baypure® solution.

As one skilled in the art will recognize, one or a combination of sequestering agents may be included in the invention.

Water

The composition of the invention generally does not include additional water. While it is recognized that certain ingredients contain a certain amount of water because they are provided as a solution in water, generally no additional water is added to the compositions of the invention. This is important in particular to maintain the high viscosity required of the compositions of the invention. The compositions of the invention can be formulated without additional water or can be provided with a relatively small amount of water in order to reduce the transport cost of the composition.

The dilution water that can be used to dilute the composition to form a use composition is preferably soft water. That is, it is preferable that the dilution water be substantially free of hardness. Water can be characterized as hard water when it includes at least 1 grain hardness.

Minor ingredients

Detergents usually contain a quantity of conventional ingredients, important but minor. These may include optical brighteners, dirt antiredeposition agents, antifoaming agents, low foaming surfactants, antifoaming surfactants, pigments and dyes, which are used in these formulas. The compositions may also include chlorine and oxygen bleach, which are not currently used in these formulas. Such materials can be formulated with the other ingredients or added during cleaning operations.

Color stabilizing agent

Compositions of the invention optionally include a component for inhibiting discoloration or browning of the formulation otherwise called a color stabilizing agent. Said color stabilizer is optional; However, due to the unpleasant nature of discolored laundry detergent it is a desirable option to include. In the compositions of the invention this color stabilizing agent is monoethanolamine. In one embodiment of the invention, a color stabilizing agent comprises from 0.01 to 5 percent by weight, from 0.05 to 3 percent by weight, and from 0.10 to 2 percent by weight.

Optical brighteners

Optical brighteners can also be optionally added to the compositions of the invention. Brighteners are commonly added to laundry detergents to replace bleaching agents that were removed during washing and to make clothes appear cleaner. Optical brighteners are generally dyes that absorb light in the ultraviolet and violet region (usually 340-370nm) of the electromagnetic spectrum, and re-emit light in the blue region (typically 420-470nm). These additives are often used to improve the appearance of the color of the fabric, which causes a perceived "whitening" effect, making the materials look less yellowish by increasing the total amount of reflected blue light.

Optical brighteners may or may not be a desirable addition to the compositions of the invention. Whether or not you want to include optical brighteners depends on the user. For example, a side effect of optical whitening is that it makes treated fabrics more visible with night vision devices compared to untreated ones. For military or other applications this effect would probably not be desirable.

Examples of class types of optical brighteners include triazine-stilbenes (di-, tetra- or hexa-sulphonates), coumarins, imidazolines, diazoles, triazoles, benzoxazolines and biphenyl-stilbenes to name a few. A single optical brightener or combinations of optical brighteners may be useful in the compositions of the invention. In one embodiment of compositions of the invention, optical brighteners comprise 0.1 to 5 percent by weight, 0.15 to 3 percent by weight, and 0.2 to 2 percent by weight. Examples of commercially available optical brighteners suitable for use in the compositions of the invention include, but are not limited to, DMS-X and CBS-X, a distyryl biphenyl derivative, both available from Vesta-Intracon BV.

Antiredeposition agents of dirt

The compositions of the invention may further include anti-redeposition agents. Anti-redeposition agents can be formed from complex cellulosic materials such as carboxymethyl cellulose (CMC) or synthetic materials such as polyethylene glycol and polyacrylates. They help prevent loose dirt from being deposited on clean fabrics again. Polyphosphate detergent builders also help reduce redeposition.

Dyes

The dyes are optionally added to the compositions of the invention. The dyes may be in the form of a pigment or a dye and may be added to provide a certain color to the composition. In addition, blue dyes can be added to provide a bluish hue that imparts a desirable blue / white color to the 5 white fabrics.

Fragrances

Fragrances are optionally added to the compositions of the invention. Fragrances generally provide three functions, regardless of the smell used. They cover the chemical smell of the detergent and the smell of dirt in the washing solution and impart a pleasant aroma to the fabrics, thus reinforcing the cleaning performance. 10 In addition, a fragrance can contribute to the character of the product. In an alternative embodiment, the compositions of the invention may omit a fragrance to provide a fragrance-free version that consequently attracts consumers who prefer little or no fragrance in laundry or for those whose skin is sensitive to the fragrance ingredients.

The following table includes examples of ingredients and amounts for preparing compositions of the invention:

 Ingredient

 % by weight% by weight% by weight

 Sodium Hydroxide (50%)

 40-80 45-75 50-70

 Ethoxylated C13-C15 fatty alcohol (7OE)

 4-20 9-15 10-14

 Ethoxylated C13-C15 fatty alcohol (3OE)

 7-15 6-12 4-10

 C10 ethoxylated alcohol

 - - -

 Fatty alcohol (C12-C14) OEOP

 - - -

 Ethoxylated isotridecanol

 - - -

 Polyacrylic Acid (20%)

 25 20 15

 Monoethanolamine

 0.01-5 0.05-3 0.1-2.0

 Alkyl polyglycoside

 0.1-7 0.5-5 1.0-3.0

 Polyacrylate Copolymer

 - - -

 Acrylic acid polymer

 - - -

 Hydroxyethylidendiphosphonic acid (60%)

 0.1-7 0.5-5 1.0-3.0

 Iminodisuccinate, sodium salt (34%)

 - - -

 GLDA

 - - -

 Carboxymethyl cellulose

 0.1-7 0.5-5 1.0-3.0

 Distyril Biphenyl Derivative

 0.1-5 0.25-3 0.5-2.0

 Fatty acid

 5 3 0.25-2.0

 Polyacrylic Acid (20%)

 30 25 20

 Water

 - - -

 Optical brightener

 0-5 0-2 0-1

 Defoamer

 - - -

fifteen

Preparation of compositions of the invention

The compositions of the invention are prepared by combining a non-ionic surfactant, a composition of alkyl polyglucoside, CMC and resin oil. APG can be added at this time along with strong agitation. Any optical brightener is added to the combination followed by the addition of an aqueous base,

5

10

fifteen

twenty

25

30

35

the aqueous base comprising aqueous sodium hydroxide 50% by weight active te, to form a mixture of alkaline surfactant. Monoethanolamine is added to the combination followed by polyacrylic acid as the final ingredient. The final mixture is exposed to high shear to form a stable thick emulsion characterized by a viscosity of more than 250 Pas at 20 degrees Celsius using the Bohlin CVO rheometer with air bearing and thermostat. The measurement is performed using two parallel plates, each of which has a diameter of 20 mm with a distance of 2 mm between the plates. The sample is confined in the space between the two plates at a constant temperature of 20 degrees Celsius. The measurement is carried out in such a way that the upper plate is rotating at a certain speed (shear rate) and the lower plate is fixed, thus shearing is applied to the sample between the plates. The torque required to maintain a certain shear rate is measured. The shear stress in the sample is calculated from the torque and the viscosity is obtained as the ratio of the shear stress and shear rate.

Methods for using the compositions of the invention

The present invention also includes methods of use. Such methods include contacting dirty laundry items with a wash liquor comprising a significant proportion of water and 0.5 to 3.0 ppm of a concentrated liquid cleaning composition in the form of an aqueous emulsion having a continuous phase and a dispersed phase, the thickened emulsion having a stable dispersed phase viscosity and particle size, the composition comprising a phase stable thickened emulsion comprising a continuous phase; an effective amount of dirt removal comprising 15 to 50% by weight of an alkalinity source; an effective amount of dirt removal comprising from 10 to 30% by weight of a non-ionic surfactant; an effective amount of water conditioning or sequestering effect of 0.1 to 10% by weight of a water conditioning agent or sequestering agent; an effective amount of dirt removal and emulsion stabilizer comprising up to 5% by weight of an alkyl polyglucoside surfactant; an effective thickener amount of polyacrylic acid comprising from 5 to 20% by weight; and an effective thickening amount of fatty acid comprising from 0.25 to 5% by weight; wherein the dispersed phase comprises at least a part of the non-ionic surfactant and the thickened emulsion concentrate has a viscosity of more than 250 Pa at 20 ° C using a Bohlin CVO rheometer measured in rotary shear mode at the shear rate of 0 , 2 per second and has a shear thinning that allows dispensing during manufacture and use to obtain a washed clothes; and rinse the washed clothes with an aqueous rinse.

Examples

Example I

The compositions were prepared according to the invention except that they lacked fatty acids. These comparative compositions were viscous fluids with viscosities of 10 Pas when taken at 0.2 s-1. The increase in the fatty acid content from 0% to 1% resulted in a continuous increase in shear viscosity by changing the appearance of a fluid liquid to a gel or solid paste.

The compositions were prepared according to the invention, except that they lacked polyacrylic acid. Without polyacrylic acid, the composition appears as a viscous liquid with a shear viscosity below 10 Pas (0.2 s-1). With the concentration of polyacrylic acid between 5 and 8 percent by weight, the composition is converted into a paste that results in viscosities in the range of 100-1,000 Pas (0.2s-1).

The compositions were prepared according to the following tables.

 1A * 1 3A * 1 5A 6A 8A

 Ethoxylated C13-15 fatty alcohol (7OE)

 15% 15% 15% 15% 15%

 Ethoxylated C13-15 fatty alcohol (3OE)

 4% 4% 4% 4% 4%

 Alkyl Polyglucoside (50%)

 2% 2% 2% 2% 2%

 Carboxymethyl cellulose

 2% 2% 2% 2% 2%

 Fatty acids of resin oil

 0% 0.4% 0.65% 0.75% 1%

 DMS-X optical brightener

 0.5% 0.5% 0.5% 0.5% 0.5%

 Distyril Biphenyl Derivative

 0.25% 0.25% 0.25% 0.25% 0.25%

 Hydroxyethylidendiphosphonic acid (60%)

 2% 2% 2% 2% 2%

 Sodium hydroxide solution (50%)

 61% 60.6% 60.35% 60.25% 60%

 Monoethanolamine

 0.25% 0.25% 0.25% 0.25% 0.25%

 Polyacrylic Acid (48%)

 13% 13% 13% 13% 13%

 = Comparative example

 1B "2 3B" 2 8B

 Ethoxylated C13-15 fatty alcohol (7OE)

 15% 15% 15%

 Ethoxylated C13-15 fatty alcohol (3OE)

 4% 4% 4%

 Alkyl Polyglucoside (50%)

 2% 2% 2%

 Carboxymethyl cellulose

 2% 2% 2%

 Fatty acids of resin oil

 0.75% 0.75% 0.75%

 DMS-X optical brightener

 0.5% 0.5% 0.5%

 Distyril Biphenyl Derivative

 0.25% 0.25% 0.25%

 Hydroxyethylidendiphosphonic acid (60%)

 2% 2% 2%

 Sodium hydroxide solution (50%)

 73.25% 69.25% 59.25%

 Monoethanolamine

 0.25% 0.25% 0.25%

 Polyacrylic Acid (48%)

 0% 4% 14%

 2 = Comparative example

The viscosity was measured using a system of parallel plates having each plate 20 mm in diameter with a space of 2 mm distance between the plates. The measurements were taken at 20 degrees Celsius. Each sample 5 was limited to the space between the two plates and the measurement was performed in such a way that the upper plate rotated at a certain speed (shear rate) while the lower plate remained fixed, thereby shearing the sample between the plates. The torque required to maintain a certain shear rate was measured. The shear stress in the sample was calculated from the torque and the viscosity results as the ratio between the shear stress and the shear rate.

10 The results are provided in the tables below:

 1A 3A 5A 6A 8A

 Conc. Of resin oil (% by weight)

 0 0.4 0.65 0.75 1

 Viscosity (0.2s-1) (Pas)

 12 28 118 711 928

 1B 3B 8B

 Conc. Of polyacrylic acid (%)

 0 4 14

 Viscosity (0.2s-1) (Pas)

 4 80 215

The results show that with the increase in the concentration of resin oil and the increase in the concentration of polyacrylic acid, the viscosity increases.

15 Example II

This Comparative Example demonstrates that not all thickening polymers are useful in the present invention. The compositions were prepared using Sokalan AT 10 from BASF, Carbopol EZ3 and EZ 4 from Noveon and Acusol 805S from Rohm & Haas, but the resulting mixtures were not stable and separated into two viscous liquid phases. The compositions were prepared according to the following table:

 Ingredient

 1C3 O b CM 3C3 4C3

 Water

 10.95% 10.95% 10.95% 10.95%

 KOH, 50%

 25.00% 25.00% 25.00% 25.00%

 DMS-X, stibenodisulfonic acid

 0.30% 0.30% 0.30% 0.30%

 CBS-X, Distyryl Biphenyl Derivative

 0.10% 0.10% 0.10% 0.10%

 Hydroxyethylene diphosphonic acid (60%)

 2.50% 2.50% 2.50% 2.50%

 Sodium Silicate (40%)

 10.00% 10.00% 10.00% 10.00%

 Iminodisuccinate, sodium salt (34%)

 14.75% 14.75% 14.75% 14.75%

 Methylglycine diacetic acid, trisodium salt (40%)

 7.50% 7.50% 7.50% 7.50%

 Polyacrylic Acid Copolymer

 7.50% 7.50% 7.50% 7.50%

 Silicone emulsion

 0.20% 0.20% 0.20% 0.20%

 Ethoxylated fatty alcohol mixture

 5.00% 5.00% 5.00% 5.00%

 Alkylbenzenesulfonate

 0.50% 0.50% 0.50% 0.50%

 Fatty alcohol (C12-14) OEOP

 9.50% 9.50% 9.50% 9.50%

 C10 ethoxylated long chain (iso) alcohol polymer

 5.00% 5.00% 5.00% 5.00%

 Fragrance

 0.20% 0.20% 0.20% 0.20%

 Thickener

 1% Carbopol EZ3 1% Carbopol EZ4 1% Sokalan AT10 1% Acusol 805S

 * 3 = Comparative example

The viscosities of each of the comparative compositions were taken as described in Example I. The results are shown in the table below:

 Formulation

 1C 2C 3C 4C

 Viscosity

 205 Pas 152 Pas 0.09 Pas 88 Pas

5 The viscosity was measured at a shear rate of 0.1 s-1. Since all these systems separate quickly, the given values are only approximate.

Example III

Increasing shear was applied to a sample prepared according to the formulation of Sample 6A. Figure 1 shows the shear thinning of Sample 6A of the invention. As the shear increases, the viscosity decreases by five orders of magnitude. As can be seen in the graph in Figure 1, the viscosity varies by more than 5 orders of magnitude at a shear rate in the range between 0.01 and 500s-1.

Example IV

This example demonstrates that both resin oil and polyacrylic acid have positive influences on the viscosity of compositions of the invention. The compositions were prepared according to the following table:

 Ingredient

 % in weigh

 Ethoxylated C13-15 fatty alcohol (7OE)

 10-14%

 Ethoxylated C13-15 fatty alcohol (3OE)

 5-9%

 Alkyl Polyglucoside (50%)

 2%

 Carboxymethyl cellulose

 0.5-2%

 Fatty acids of resin oil

 0.25% -0.75%

 DMS-X optical brightener

 0.5%

 Distyril Biphenyl Derivative

 0.25%

 Hydroxyethylidendiphosphonic acid (60%)

 2%

 Sodium hydroxide solution (50%)

 40-60%

 Monoethanolamine

 0.25%

 Polyacrylic Acid (48%)

 11.7-14.3%

This experiment was performed based on a statistical method of experiment design called DOE (Design of Experiment) - Mixture Design. Some ingredients were kept at a constant concentration 5 while the content of others was varied within the limits given in the table above. The evaluation of the viscosities measured with the statistical methods resulted in the graph shown in Figure 2, which demonstrates the effect of the various A-F ingredients on the viscosity when their concentrations are increased.

The viscosity of each composition in the table above was taken in accordance with the protocol provided in Example I. The graph in Figure 2 illustrates the results. As you can see, both resin oil and polyacrylic acid (Rheosolve or Acusol) have a strong positive effect on viscosity, NaOH and Lutensol AO3 (ethoxylated fatty alcohol) have a negative effect and Lutensol AO7 (ethoxylated fatty alcohol) and CMC do not influence viscosity to a large extent.

Example V

This example demonstrates that the thickened emulsion of the invention had a good cleaning performance of a variety of stains. A composition of the invention was prepared according to the following table:

 Ingredient

 Manufacturer% by weight

 Lutensol AO7

 BASF 15.00

 Lutensol AO3

 BASF 4.00

 Glucopon 215 UP

 Cognis 2.00

 CMC

 Hercules 2.00

 Resin oil

 Mosselman 0.50

 DMS-X

 Ciba 1.00

 CBS-X

 Hebei 0.25

 Dequest 2010

 Thermphos 2.00

 NaOH (50%)

 BASF 60.00

 Monoethanolamine

 BASF 0.25

 Accusol 445

 Rohm & Haas 13.00

5

10

fifteen

twenty

25

The pH of a 1% solution of the formulation identified above was in the range of 12.2 to 12.9.

For this example, standardized commercially available test stains from WFK (Krefeld / Germany) were used. Test stains were produced in a standardized manner and placed on test strips. These were introduced in a washing machine together with 6.5 kg of polyester textiles. Each procedure was repeated 4 times in 4 different washing machines, the values in the tables below being the averages of the 4 results for each procedure. The composition prepared above was introduced in doses of 1.5 g / l together with 1 ml / l of a bleaching agent (Ozonit super available from Ecolab, Inc.) in each test. The washing time was 10 minutes, at a temperature of 70 ° C, a bath ratio of 1: 5; soft water was used. After finishing the wash test, the removal of stains from the test strips was measured with an optical method, the light transmission at a fixed wavelength in the stain was measured before and after washing. The results are the remission values shown in the tables.

The following tables compare the results of the laboratory washing of the thickened emulsion of the invention with a commercially available detergent. The two upper tables show the results of washing performance with grease / pigment spots, while the lower table shows enzymatic spots. The results demonstrate that the thickened emulsion of the invention also behaved just as well or better than the commercially available detergent in most situations.

 Pigment / lanolin in cotton Pigment / lanolin in polyester / cotton Pigment / tallow in cotton Pigment / tallow in polyester / cotton Soot / mineral oil in cotton Soot / mineral oil in PES / CO

 Commercially available

 62.2 45.7 60.4 62.6 34.3 37.3

 Detergent

 Thickened emulsion

 63.2 49.9 62.7 68 35 38.7

 Engine oil used in cotton Engine oil used in polyester / cotton Makeup in cotton Makeup in polyester / cotton

 Commercially available detergent

 44.6 34.2 75 80.3

 Thickened emulsion

 44.4 34.5 75.3 81.9

 Aged blood Non-aged blood Blood / milk / ink on cotton Aged chocolate milk Blood / milk / soot on cotton Egg / soot on cotton

 Commercially available detergent

 87.4 85.4 32.9 43.9 53.7 48

 Thickened emulsion

 87 86.1 40 52 69.3 58

The invention has been described with reference to various specific and preferred embodiments and techniques. Modifications of proportions, the elements, the materials, and the components used in the practice of the invention, and on the contrary, those that are particularly adapted to specific environmental and operational requirements are foreseen by this application without departing from those principles. The attached claims are intended to cover and cover each and every one of said modifications.

Claims (15)

5 10 fifteen twenty 25 30 35 40 Four. Five fifty 1. A concentrated liquid cleaning composition in the form of a thickened aqueous emulsion having a continuous aqueous phase and a dispersed phase, the composition comprising a phase stable thickened emulsion, comprising: (a) an effective amount of dirt removal comprising 15 to 50% by weight of an alkalinity source; (b) an effective amount of dirt removal comprising from 10 to 30% by weight of a non-ionic surfactant; (c) an effective amount of water conditioning or sequestering activity comprising from 0.1 to 10% by weight of a water conditioning agent or sequestering agent; (d) an effective thickener amount of polyacrylic acid comprising from 5 to 25% by weight; Y (e) an effective stabilizing and thickening amount of fatty acid comprising from 0.25 to 5% by weight; wherein the dispersed phase comprises at least a portion of the non-ionic surfactant and the emulsion concentrate has a shear thinning that allows dispensing during manufacture and use and the viscosity comprises more than 100 Pas at 20 ° C using a Bohlin rheometer CVO measured in rotary shear mode at the shear rate of 0.2 per second; wherein the composition has a low water content and a high concentration of active ingredients of more than 60% by weight based on the concentrate composition. 2. The composition according to claim 1, wherein the viscosity is greater than 300 Pa s at 20 ° C using a Bohlin CVO rheometer measured in rotary shear mode at the shear rate of 0.2 per second; or where the viscosity is greater than 500 Pa at 20 ° C using a Bohlin CVO rheometer measured in rotary shear mode at the shear rate of 0.2 per second: or where the viscosity is greater than 700 Pa at 20 ° C using a Bohlin CVO rheometer measured in rotary shear mode at the shear rate of 0.2 per second; or where the viscosity is greater than 900 Pa s at 20 ° C using a Bohlin CVO rheometer measured in rotary shear mode at a shear rate of 0.2 per second. 3. The composition according to claim 1 or 2, wherein the nonionic surfactant comprises an ethoxylated C13-15 fatty alcohol having 4 to 10 moles of ethylene oxide; or wherein the nonionic surfactant comprises ethoxylated C13-15 fatty alcohol having 1 to 5 moles of ethylene oxide. 4. The composition according to claims 1 to 3, wherein the water conditioning agent comprises a phosphonic acid; or wherein the water conditioning agent comprises hydroxyethylidendiphosphonic acid. 5. The composition according to claims 1 to 4, wherein the polycarboxylic acid is composed of a linear polyacrylic chain. 6. The composition according to claims 1 to 5, wherein the fatty acid is composed of resin oil. 7. The composition according to claims 1 to 6, further comprising optical brightener, colorant, fragrance, anti-foaming agent, defoaming agent, bleaching agent, anti-redeposition agent, or combinations thereof. 8. The composition according to claims 1 to 7, further comprising a color stabilizing amount of monoethanolamine comprising from 0.01% by weight to 5% by weight 9. The composition according to claims 1 to 8, wherein the composition also has a viscosity greater than 1,000 Pas at zero shear. 10. The composition according to claims 1 to 9, wherein the composition comprises an effective amount of dirt removal and emulsion stabilizer of 0.1 to 10% by weight of an alkyl polyglucoside surfactant. 11. A method of cleaning dirty laundry items comprising: (i) contacting the dirty laundry articles with a washing liquor comprising a significant proportion of water and 0.5 to 3.0 ppm of a concentrated liquid cleaning composition in the form of a thickened aqueous emulsion having a phase continuous and a dispersed phase, the thickened emulsion having a 5 10 fifteen twenty 25 viscosity and a stable dispersed phase particle size, the composition comprising a phase stable thickened emulsion, comprising: (a) an effective amount of dirt removal comprising 15 to 50% by weight of an alkalinity source; (b) an effective amount of dirt removal comprising from 10 to 30% by weight of a non-ionic surfactant; (c) an effective amount of water conditioning or sequestering activity comprising from 0.1 to 20% by weight of a water conditioning agent or sequestering agent; (d) an effective thickener amount of polyacrylic acid comprising from 5 to 20% by weight; Y (e) an effective stabilizing and thickening amount of fatty acid comprising from 0.25 to 5% by weight; wherein the dispersed phase comprises at least a part of the non-ionic surfactant and the thickened emulsion concentrate has a viscosity greater than 250 Pas at 20 ° C using a Bohlin CVO rheometer measured in rotary shear mode at the shear rate of 0, 2 per second and presents a thinning by shear that allows the dispensing during the manufacture and use to obtain a washed clothes; and wherein the composition has a low water content and a high concentration of active ingredients of more than 60% by weight based on the composition of the concentrate; Y (ii) rinse the washed clothes with an aqueous rinse. 12. The method according to claim 11, wherein the temperature of the wash liquor is from 25 ° C to 80 ° C. 13. The method according to claim 11 or 12, wherein the wash liquor comprises 1.0 to 2.5 ppm of the liquid cleaner. 14. The method according to claims 11 to 13, wherein the composition has a viscosity of more than 1,000 Pa s at zero shear. 15. The method according to claims 11 to 14, wherein the composition comprises an effective amount of dirt removal and stabilization of the emulsion of 0.1 to 5% by weight of an alkyl polyglucoside surfactant.