EA024996B1 - Liquid hard surface cleaning composition - Google Patents

Abstract

Liquid hard surface cleaning composition comprising from 10 to 95 wt.% of liquid solvent, and from 0.025 to 5 wt.% of activated citrus fibre, and from 1 to 75 wt.% of abrasive calcite particles, wherein the pH of the liquid hard surface cleaning composition is at least 8. It was found that the combination of calcite particles and activated citrus fibre provide an improved cleaning efficiency of hard surfaces. In addition it was found that the improved cleaning efficiency of calcite particles and activated citrus fibre may be used to reduce the amount of surfactant in a liquid hard surface cleaning composition with little or no reduction in cleaning efficiency.

Description

This invention relates to a liquid composition for cleaning hard surfaces, including activated citrus fiber and abrasive particles of calcite.

State of the art

Many people regularly spend a significant amount of time and effort on cleaning hard surfaces at their place of residence or place of work or in their vicinity. Examples of hard surfaces are countertops, leather, ceramic tiles, tableware and car bodies.

When cleaning hard surfaces, cleaning compositions are typically used to improve cleaning performance (for example, to reduce the required time and / or effort).

Compositions for cleaning hard surfaces usually contain surfactants that can help remove stains and / or dirt, such as grease stains / dirt. Surfactants typically reduce the surface tension of a liquid, the interfacial surface tension between two liquids, and / or the interfacial surface tension between a liquid and a solid. Surfactants can function as detergents, wetting agents, emulsifiers, foaming agents and dispersants.

As a common component of purification compositions, surfactants in large quantities can enter soil and / or water ecosystems. This can be problematic because surfactants themselves can have a toxic effect on the life of animals and plants and / or can increase the diffusion of other environmental pollutants and increase the impact of the latter on the life of animals and plants.

Therefore, it is desirable to reduce the amount of surfactants or even replace them in compositions for cleaning hard surfaces using alternative ingredients that have less or no adverse environmental impact when precipitated in ecosystems. However, it must be understood that the aforementioned quantity reduction / substitution should preferably have little or no effect on the purification efficiency. Therefore, it is even more preferable when the mentioned alternative options will be of natural origin and will be biodegradable.

Publication νθ 2012/040142 describes liquid cleansing compositions intended for cleansing a wide range of non-living matter surfaces, including bleached cleansing particles in the form of abrasives, characterized by a degree of whiteness (b *) greater than 65 as measured by lighting under Ό 65.

The publication I8 3956158 describes fluid liquids comprising a three-dimensional network of insoluble entangled filaments, characterized by a diameter in the range from 0.1 to 100 μm and a ratio between length and diameter of at least 60, and solid particles dispersed in the medium and prevented from separation from the environment by using a mesh of filaments.

The publication I8 2007/019779 describes the use of microfiber cellulose as a structuring system.

Publications I8 2004/0086626, I8 2009/269376 and νθ 2012/019934 describe citrus fibers and their use for structuring food products and personal care compositions.

One objective of the present invention is to provide a composition for cleaning hard surfaces, characterized by improved cleaning performance.

One additional objective of the present invention is to provide a composition for cleaning hard surfaces, where part or all of the amount of surfactants can be replaced using one or more alternative ingredients, characterized by a small or zero decrease in cleaning efficiency.

One additional objective of the present invention is to provide a composition for cleaning hard surfaces, entirely consisting of natural and / or biodegradable ingredients, characterized by good cleaning performance, which is preferably identical to commonly used compositions for cleaning hard surfaces.

SUMMARY OF THE INVENTION

Surprisingly, a combination of calcite particles and activated citrus fiber has been found to provide improved cleaning performance for hard surfaces.

As you can imagine without the desire to bind yourself with theory, in ordinary liquid cleansing compositions, calcium particles move relatively freely. Therefore, calcite particles can move (for example, rotate) under the influence of the applied force. The result of this is that the force applied to the particles, for example, as a result of the frictional force created by man, is not effectively transmitted to a solid surface (containing dirt / stains). The added activated citrus fiber appears to form a grid in the liquid cleansing composition, which reduces the free movement of calcite particles and thus improves the abrasive force exerted by the particles on the stains / dirt.

- 1,024,996

Therefore, the invention relates to a liquid composition for cleaning hard surfaces, comprising from 10 to 95 wt.% A liquid solvent, from 0.025 to 5 wt.% Activated citrus fiber and from 1 to 75 wt.% Abrasive particles of calcite, where the pH value of the liquid composition for cleaning hard surfaces is at least 8.

In one additional aspect, the invention relates to the use of activated citrus fiber in a liquid composition for cleaning hard surfaces, including calcite abrasive particles and a liquid solvent, to improve the cleaning performance.

In addition to this, it has been found that improved cleaning performance for calcite particles and activated citrus fiber can be used to reduce the amount of surfactant in liquid compositions for cleaning hard surfaces with little or no decrease in cleaning performance.

Therefore, in one additional aspect, the invention relates to the use of activated citrus fiber in a liquid composition for cleaning hard surfaces, including calcite abrasive particles and a liquid solvent, to replace part or all of the surfactant with little or no effect on the cleaning performance.

In addition, it was found that a liquid composition for cleaning hard surfaces, including only natural ingredients such as water, calcite particles and activated citrus fiber, shows good cleaning performance.

Therefore, in one additional aspect, the invention relates to the use of activated citrus fiber in a liquid composition for cleaning hard surfaces, including calcite abrasive particles and a liquid solvent, to obtain an effective composition for cleaning, which essentially consists of natural ingredients.

According to the observations, in the case of using certain technological conditions for the manufacture of a liquid cleaning composition according to the invention, more stable liquid compositions for cleaning hard surfaces corresponding to the invention will be obtained.

Therefore, the invention further relates to a method for manufacturing a liquid cleansing composition according to the invention, comprising the following steps:

a) supply of a liquid solvent;

b) feeding a pre-mix comprising activated citrus fiber;

c) supply of calcite abrasive particles;

g) mixing the ingredients mentioned in steps a), b) and c) at least in a partial vacuum.

To clean a hard surface, a composition according to the invention is applied to the hard surface to be cleaned. After this, it is preferable that the composition on a hard surface be mixed using manual and / or suitable mechanical means.

According to observations, the cleaning efficiency is further improved by mixing the composition on the surface using non-absorbent agents such as a brush or non-absorbent cloth.

Therefore, the invention also relates to a method for cleaning a hard surface, comprising the following steps:

a) applying a liquid composition for cleaning hard surfaces in accordance with the invention, on a hard surface;

b) mixing said composition on a solid surface using non-absorbent agents.

DETAILED DESCRIPTION OF THE INVENTION

In the context of the present invention, the terms dirt and stain as used herein generally include all types of dirt and stains, generally found in the household, of either organic or inorganic origin, whether visible or invisible to the naked eye, including solid pollution particles and / or bacteria or other pathogens. The term “dirt” includes persistent dirt, which means sticky dirt that is usually very difficult to remove, such as burnt and / or sintered food debris. The level of mass percentage (wt.%) Is obtained when calculating the total weight of the composition, unless otherwise approved. In the course of the entire presentation of this description of the invention, all declared viscosities are viscosities measured at a shear rate of 20 s ^-1 and at a temperature of 25 ° C, unless otherwise stated. This shear rate is the shear rate, which usually affects the liquid when poured from a bottle. The liquid detergent compositions of the invention are shear thinning liquids.

A solid surface is any type of surface that is usually found inside or in the vicinity of residential or office premises, such as kitchens, bathrooms and the like, for example, in the case of floors, walls, tiles, windows, cupboards, kitchen sinks , showers, plasticized curtains for bathtubs, washbasin sinks, toilets, fittings and accessories and the like, made of various materials such as ceramics, vinyl plastic, vinyl-free plastic, linoleum, melamine , Glass, stainless steel, plastic Rott1sa, glass, any plastics, plastified wood, metal or any surface coated with paint or varnish or sealer, and the like. Hard surfaces at the place of residence or at the place of work also include household electrical appliances, including, but not limited to, refrigerators, freezers, washing machines, automatic dryers, ovens, microwave ovens, dishwashers, and the like. Such hard surfaces can be found in private households as well as in commercial, institutional and industrial environments. Hard surfaces at the place of residence or at the place of work include the surfaces of dishes. Under the surface of the dishes in this document refers to bowls, glasses, pans, pans, baking dishes and small dishes made of ceramics, porcelain, metal, glass, plastic (polyethylene, polypropylene, polystyrene and the like), wood, enamel, stainless steel , teflon or any other material commonly used in the manufacture of articles used for food and / or cooking.

Improved cleaning performance (i.e., improved cleaning) indicates that removing dirt and / or stains from a hard surface requires less time and / or effort (for example, forces exerted by the user). For example, the cleaning efficiency will be improved if it is necessary to use a lower intensity sweeping action to remove stains / dirt from a solid surface using approximately the same force. For example, the cleaning efficiency will be improved if it is necessary to use the same intensity of sweeping actions, but if necessary, use less force. It is clear that improved cleaning can also be indicated by similar efforts to remove the increased amount of dirt / stain. You must understand that some types of stains / dirt are more difficult to remove in comparison with others, and that to compare the effectiveness of cleaning, the comparison is preferably carried out using cleaning from the same type of stain / dirt.

Calcite abrasive particles.

Preferably, the amount of calcite particles in the liquid composition for cleaning hard surfaces according to the invention is in the range from 2 to 65 wt.%, More preferably from 3 to 60 wt.%, Even more preferably from 4 to 55 wt.%, Even more preferably from 5 to 50 wt.% and even more preferably from 6 to 45 wt.%.

It should be understood that the average particle size for calcite particles is not excessively large or excessively small in order to obtain good cleaning performance. For example, on the one hand, an aggregate of calcite particles characterized by an excessively large average particle size (for example, greater than 2000 μm) does not significantly increase the degree of purification due to the small ratio between surface area and mass and would require the use of a very large degree of introduction of particles into the composition for achieve efficiency. In addition to this, excessively large particles are easily detected visually or create unpleasant tactile sensations when handling them. For example, on the other hand, an aggregate of calcite, characterized by an excessively small average particle size (for example, less than 0.1 μm), is undesirable, since its removal from a solid surface may be difficult when visible residues remain on the surface.

According to observations, the cleaning efficiency for the liquid composition of the invention improves a certain average particle size of calcite. Preferably, the average particle size of calcite is in the range of 0.1 to 500 microns, more preferably is in the range of 0.5 to 200 microns, even more preferably is in the range of 1 to 100 microns, even more preferably is in the range of 2 up to 75 microns, even more preferably in the range of 3 to 50 microns, and even more preferably in the range of 4 to 25 microns.

The calcite abrasive particles according to the invention and characterized by a suitable average size for use can be made of calcium carbonate in accordance with methods known in the art. For example, said particles can be made of calcium carbonate by mechanical grinding followed by sorting methods of suitable size for use, such as screening. In addition, calcite abrasive particles from a certain range of average particle sizes are commercially available. For example, calcite particles are available, characterized by an average particle size of 2.6, 5 or 35 μm, for example, under the trade names Otuasat 2 - Αν, Otuasag 5 - Αv and Otuasag 30 - Αν respectively, (Otua Szegaeg δοιιΐΐι. .

The average particle size can be measured using methods and equipment known in the art (for example, when using particle size analysis). It is preferable to measure the particle size using a device Model Ma81eg81 / eG X (Layout 1n81gitep18, oggse81eg8kg, IR), operating in accordance with the instructions of the supplier.

- 3,049,996

Preferably, the calcite particles have sharp edges, and on average one particle has at least one sharp edge. More preferably, one particle has a plurality of sharp edges on average. A sharp edge is an edge characterized by a tip radius of less than 20 pm, preferably less than 8 pm, most preferably less than 5 pm. The radius of the vertex is determined by the diameter of an imaginary circle that describes the curvature of the extreme points of the edge.

Citrus fiber.

Activated citrus fiber, if appropriate, may be made from powdered citrus fiber. Powdered citrus fiber can be made in accordance with the following general method.

Citrus fruits (mainly lemons and limes) are freed from juice to produce insoluble material on the walls of plant cells and some sugar and pectin contained inside. All this is dried and sieved, and then washed to increase the level of fiber content. The dried material contains large (100 micron) cell fragments, which consist of tightly bound / adhered fibrils. After milling, a powdered citrus fiber material is obtained. The method used leaves many walls of natural cells intact while removing sugars. The resulting highly swellable citrus fiber materials are typically used as food additives and used in low-fat mayonnaise. The pH of the dispersed powder is acidic.

As demonstrated by microscopy, powdered citrus fiber is a heterogeneous mixture of particles having different sizes and shapes. The main part of the material consists of aggregated lumps of cell walls and debris of cell walls. However, several tube-shaped structures having an opening diameter of approximately 10 μm, and often arranged in clusters, can be identified. These so-called xylem vessels are channels for transporting water, which are mainly located in the peel of citrus fruits. Xylem vessels consist of stacks of fixed cells connected to each other to form relatively long tubes with lengths ranging from 200 to 300 microns. The outer surfaces of the tubes are hardened by lignin, which is often stacked in the form of rings or spirals, which prevents the tubes from collapsing due to capillary forces acting on the walls of the tubes during transport of water.

One preferred type of powdered citrus fiber is the NegLaGobk 'NegLae1 LO + 1ure N citrus fiber. This citrus fiber is characterized by a combined level of (soluble and insoluble) fiber greater than 80% and a soluble fiber content greater than 20%. It is supplied in the form of a fine dried powder having a non-intense color and having the ability to bind water, comprising approximately 20 kg of water per one kg of powder.

Activated citrus fiber.

When appropriate, activated citrus fiber can be made from powdered citrus fiber by activating powdered citrus fiber (hydrated and structurally open) as a result of high shear dispersion at a low concentration in water to form a pre-mix. Due to the biodegradability of the dispersed activated citrus fiber, it is advantageous to include a preservative in the premix.

The shift should not be intense enough to stimulate the passage of defibrillation. If a high pressure homogenizer is used, it should function in the range of 200 to 600 bar. The larger the shear applied, the less dense the resulting particles will be. Despite the change in morphology due to high shear, the technological size of the aggregates does not seem to change. The fibers are destroyed, and then fill the aqueous phase. The shear also abrades the external parts of the cell walls to friability, and they become able to form a matrix that structures the water outside the original fiber.

The activated citrus fiber structuring the pre-mix can alternatively be made by milling using a high-shear mixer such as Zyuegkoi. The pre-mix can be passed through several successive high shear stages in order to ensure complete hydration and dispersion of the citrus fiber to obtain a dispersion of activated citrus fiber.

The preliminary mixture can be left for additional hydration (aging) after high shear dispersion. The activated pre-mix is preferably used fresh.

Pre-mixes homogenized at high pressure are preferred over ground pre-mixes because they are more mass-efficient to obtain a sufficient suspension mode of operation for liquids. An increase in homogenization pressure gives the pre-mixture an additional increased mass efficiency. One suitable operating pressure is about 500 bar (g).

The level of activated citrus fiber in the pre-mix is preferably in the range from 1 to 5 wt.%, More preferably from 1.5 to 2.5 wt.%. The concentration of activated citrus fiber in the pre-mix depends on the ability of the equipment to work with high viscosity due to increased concentrations. Preferably, the amount of water in the pre-mix is at least 20 times greater in comparison with the amount of citrus fibers, more preferably at least 25 times, even up to 50 times. The presence of excess water is beneficial in order to fully hydrated activated citrus fiber.

Preferred pre-mixtures are characterized by a measured stress at yield strength of at least 70 Pa according to the measurement using the geometry of the serrated bowl and float device прибораηΐοη Raag at 25 ° C.

Activated citrus fiber is compatible with enzymes used in detergent compositions for laundry and household use.

The amount of activated citrus fiber in the liquid cleansing composition according to the invention is in the range from 0.025 to 5 wt.%, Preferably from 0.05 to 5 wt.%, More preferably from 0.1 to 4 wt.%, Even more preferably from 0.15 to 3 wt.% and even more preferably from 0.2 to 2 wt.%.

Surfactants.

Despite the desirability of reducing the amount of surfactant, the cleansing composition used in accordance with the invention may contain a surfactant. Said surfactant (a substance that enhances the action of detergents) is generally selected from anionic and non-ionic substances that enhance the action of detergents. The composition for purification in an additional or alternative embodiment may contain cationic, amphoteric and zwitterionic surfactants. Typically, the amount of surfactant is in the range of 0.1 to 75% by weight.

Preferably, the liquid composition for cleaning hard surfaces of the invention comprises at most 50 wt.%, More preferably at most 20 wt.%, Even more preferably at most 10 wt.%, Even more preferably at most 5 wt.% And even even more preferably at most 1 wt.% surfactant.

Suitable synthetic anionic surfactants (non-soap type) are water-soluble salts of organic monoesters of organic sulfuric acids and sulfonic acids, which in the molecular structure contain a branched or straight chain alkyl group containing from 6 to 22 carbon atoms in the alkyl part .

Examples of such anionic surfactants are water-soluble salts of sulfates of (primary) long chain (e.g. containing 6-22 C atoms) alcohols (hereinafter referred to as PA§), especially those compounds resulting from the sulfation of fatty alcohols resulting from the reduction of tall oil or coconut glycerides;

alkylbenzenesulfonates, such as those compounds in which the alkyl group contains from 6 to 20 carbon atoms;

secondary alkanesulfonates and mixtures thereof.

Also suitable for use are sulfate salts of alkyl glyceryl ethers, especially fatty alcohol ethers derived from tall and coconut oil;

fatty acid monoglycerides sulfates;

sulfates of ethoxylated aliphatic alcohols containing 1-12 ethyleneoxy groups; alkyl phenol ethyleneoxy ether sulfates containing from 1 to 8 ethyleneoxy units per molecule, and in which the alkyl groups contain from 4 to 14 carbon atoms;

reaction product for fatty acids esterified using isethionic acid to form esters and neutralized using alkali, and mixtures thereof.

Preferred water soluble synthetic anionic surfactants are those obtained using alkali metals (such as sodium and potassium) and alkaline earth metals (such as calcium and magnesium) salts of alkylbenzenesulfonates and mixtures with olefinsulfonates and alkyl sulfates and sulfates of fatty acid monoglycerides.

The most preferred anionic surfactants are alkyl aromatic sulfonates, such as alkyl benzene sulfonates containing from 6 to 20 carbon atoms in a straight or branched chain alkyl group, specific examples of which are sodium salts of alkyl benzene sulfonates or alkyl toluene, xylene and phenolsulfonates alkylnaphtha-5 024996 talinsulfonates, ammonium diamylnaphthalenesulfonate and sodium dinonylnaphthalenesulfonate.

If it is necessary to use a synthetic anionic surfactant, the amount present in the compositions for cleaning the invention will generally be at least 0.1 wt.%, Preferably at least 0.5 wt.%, More preferably at least 1.0 wt.%, But not more than 20 wt.%, Preferably at most 10 wt.%, And more preferably not more than 5 wt.%.

One suitable class of nonionic surfactants in a broad sense can be described as compounds obtained by condensing simple alkylene oxides, which by their very nature are hydrophilic, with an aliphatic or alkyl aromatic hydrophobic compound containing a reactive hydrogen atom. The length of the hydrophilic or polyoxyalkylene chain that attaches to any particular hydrophobic group can easily be adjusted to produce a compound characterized by the desired balance between hydrophilic and hydrophobic elements. This makes it possible to select nonionic surfactants characterized by an appropriate HLB value.

Specific examples include condensation products of aliphatic alcohols containing from 8 to 22 carbon atoms in either a straight or branched chain configuration with ethylene oxide, such as coconut alcohol / ethylene oxide condensates containing from 2 to 15 mol of ethylene oxide per mol coconut alcohol;

condensates of alkyl phenols containing C6-C15 alkyl groups with 5-25 moles of ethylene oxide per mole of alkyl phenol;

condensates of the reaction product between ethylene diamine and propylene oxide with ethylene oxide, while the condensates contain from 40 to 80% ethyleneoxy groups on a weight basis and have a molecular weight in the range of 5000 to 11000.

Other classes of non-ionic surfactants are tertiary amine oxides having the structure Κ1Κ2Κ3Ν-Ο, where K1 represents an alkyl group containing from 8 to 20 carbon atoms, and each of K2 and C3 represents an alkyl or hydroxyalkyl group containing from 1 to 3 carbon atoms, for example dimethyldodecylamine oxide;

tertiary phosphine oxides having the structure K1K2K3P-O, where K1 represents an alkyl group containing from 8 to 20 carbon atoms, and each of K2 and KZ represents an alkyl or hydroxyalkyl group containing from 1 to 3 carbon atoms, for example dimethyldodecylphosphine oxide;

dialkyl sulfoxides having the structure K1K2§ = O, where K1 is an alkyl group containing from 10 to 18 carbon atoms, and K2 is methyl or ethyl, for example methyltetradecyl sulfoxide;

fatty acid alkylolamides such as ethanolamides; alkylene oxide condensates of fatty acid alkylolamides; alkyl mercaptans.

If it is necessary to use a non-ionic surfactant, the amount present in the compositions for cleaning the invention will generally be at least 0.1 (wt.%, Preferably at least 0.5 wt.%, More preferably at least 1.0 wt.%, But not more than 20 wt.%, Preferably at most 10 wt.%, And more preferably not more than 5 wt.%.

It is also possible to optionally include amphoteric, cationic or zwitterionic surfactants in said compositions.

Suitable amphoteric surfactants are derivatives of aliphatic secondary and tertiary amines containing an alkyl group containing from 8 to 20 carbon atoms and an aliphatic group substituted by using an anionic group solubilizing in water, for example, sodium 3-dodecylaminopropionate, Sodium 3-dodecylaminopropanesulfonate and sodium ^ 2-hydroxydodecyl- ^ methyltaurinate.

Examples of suitable cationic surfactants can be found among quaternary ammonium salts containing one or two alkyl or aralkyl groups containing from 8 to 20 carbon atoms, and two or three small aliphatic (e.g. methyl) groups, for example in the form of cetyltrimethylammonium chloride.

One particular group of surfactants is tertiary amines obtained by condensing ethylene and / or propylene oxide with long chain aliphatic amines. Compounds behave like non-ionic surfactants in an alkaline environment and like cationic surfactants in an acidic environment.

Examples of suitable zwitterionic surfactants can be found among derivatives of aliphatic quaternary ammonium, sulfonium and phosphonium compounds containing an aliphatic group containing from 8 to 18 carbon atoms and an aliphatic group substituted with an anionic a group solubilizing in water, for example betaine and betaine derivatives such as alkyl betaine, in particular C12-C16 alkyl betaine, 3- (Ν, Ν dimethyl-H-hexadecylammonium) propane-1-sulfonate betaine, 3- (dodecylmethyl sulfone d) propan-1sulfonatbetain, 3- (tsetilmetilfosfony) propan-1sulfonatbetain and N ^ -dimethyl-N-dodetsilglitsin. Other well-known betaines are alkylamidopropyl betaines, for example, those compounds wherein the alkylamide group is derived from coconut oil fatty acids.

Additional examples of surfactants suitable for use are compounds commonly used as surfactants presented in well-known training manuals: 8gGase LsOue Ldeu νοί. 1, b, 5> b1, vag1 / & Reggu, 1n1sg5supss 1949; ZigGase Lsou Ldey νοί. 2, bj 5> cb \ ya1 /. Reggu & Vegs, 1n1eg5s1epse 1958; a modern edition of the publication of the International Union of Socialists and Entrepreneurships of Europe and the United States of America and the United States of America; Sotrapu; Tep81be-Ta8cebis, N. Chase, 2pb Ebp., Cag1 Naizeg ^ r1ad, 1981.

System of mixed surfactants.

Synthetic surfactants preferably form the bulk of the surfactant system. According to the choice of the formulation compiler, all mixtures of synthetic anionic and nonionic surfactants or a system of completely anionic mixed surfactants or mixed formulations of anionic surfactants can be used to obtain the desired operating mode for cleaning and the required dosage of the detergent composition. substances, non-ionic surfactants, and amphoteric or zwitterionic surfactants.

Liquid solvent.

The liquid solid surface cleansing compositions of the invention contain from 10 to 95% by weight of a liquid solvent, which is preferably water, an organic solvent (e.g. ethanol, glycerin), or a mixture thereof.

The composition according to the invention preferably contains from 35 to 92% by weight, more preferably from 55 to 90% (by weight) and even more preferably from 65 to 85% (by weight) of a liquid solvent.

Preferably, the composition of the invention comprises a liquid solvent, wherein the liquid solvent contains at least 50 wt.%, More preferably at least 75 wt.%, Even more preferably at least 85 wt.% And even more preferably at least 95% water, based on the total weight of the liquid solvent.

The liquid composition for cleaning hard surfaces in accordance with the invention is characterized by a pH of at least 8. It has been found that when the pH is less than 8, the cleaning efficiency of the composition according to the invention is reduced.

Preferably, the pH of the liquid composition of the invention is at least 8.5, more preferably at least 9, even more preferably at least 9.5, even more preferably at least 10, even more preferably at least at least 10.5 and even more preferably at least 11.

Preferably, the liquid composition for cleaning hard surfaces of the invention is characterized by a pH value of at most 13.

The pH value for the purification composition of the invention can be adjusted, if appropriate, using organic or inorganic acids or bases. Preferred inorganic bases are preferably alkali or alkaline earth metal hydroxides, ammonia, carbonates or bicarbonates, the alkali metal preferably being sodium or potassium, or the alkaline earth metal is preferably calcium or magnesium. The organic bases are preferably amines, alkanolamines and other suitable amino compounds. Inorganic acids may include hydrochloric acid, sulfuric acid or phosphoric acid, and organic acids may include acetic acid, citric acid or formic acid, as well as mixtures of dicarboxylic acids, such as products Cab1t1x (trademark, Cabu Ogoyr) and Zokaap ESZ (trademark, VL8R).

Other optional ingredients.

The composition may include additional optional ingredients, such as non-calcite abrasive particles and additional ingredients that contribute to the implementation of the performance of the cleaning.

For example, in particular, if the composition contains one or more anionic surfactants, the composition may preferably contain detergent components of the detergent in an amount, more preferably in the range from 0.1 to 25 wt.%. Suitable inorganic and organic detergent components are well known to those skilled in the art.

For example, a composition of the invention may contain a soap foam control material that can be used in compositions that tend to form excessive soap foam during use. In the case of the presence of a hydrocarbon solvent at a sufficiently high level of content, this alone can ensure the achievement of some or all of the required activity to prevent foaming.

For example, the composition of the invention may also contain ingredients such as colorants, whiteners, optical brighteners, suspending mud substances, detergent enzymes, compatible bleaching agents (in particular peroxide compounds and active chlorine releasing compounds), solvents, joint solvents, gel control additives, in addition, stabilizers for freeze-thaw cycles, bactericides, preservatives (e.g. 1,2-benzothiazolin-3-one), hydrotropes, Limers and fragrances.

Examples of optional enzymes include lipase, cellulase, protease, mannanase, amylase, and pectatliase.

The density of the liquid composition for cleaning hard surfaces.

The liquid cleansing composition according to the invention preferably has a viscosity in the range from 100 to 10,000 mPa-s, more preferably from 200 to 8,000 mPa-s, even more preferably from 400 to 6,500 mPa-s, and even more preferably from 800 to 5,000 MPa-s as measured at a shear rate of 20 s ^-1 and at a temperature of 25 ° C.

Viscosity in a case suitable for use can be determined by using the NAAKE O8co1e81eg UT550 device (CeBibeg NAAKE STN, KagPgie, Oegtaiu) using a measuring cylinder 18/8 81at1e88 81е1 МУ and a float МУ2. Viscosity was measured at a shear rate of 20 s ^-1 and at a temperature of 25 ° C.

You must understand that the viscosity of the composition corresponding to the invention can be modified by adding a suitable agent that improves or decreases the viscosity, as is known in the art.

Preparation method.

Either the pre-mixture containing activated citrus fiber can be added to other ingredients of the liquid composition for cleaning hard surfaces as a subsequent dosing ingredient, or in the alternative, the composition can be formed by first preparing the pre-mixture and then adding other ingredients to it. . To completely disperse the pre-mixture in the composition, a certain high shear effect is preferably applied, but the operating mode is not as severe as when the pre-mixture was prepared.

Activated citrus fiber benefits from processing essentially in the absence of air, since it improves the stability of the resulting liquid compositions, especially with respect to the separation of the lower transparent layer. Processing essentially in the absence of air can be achieved in accordance with known techniques of the state of the art, such as in the case of processing of ingredients, at least in partial, preferably substantially complete vacuum.

Therefore, in accordance with the second section, the invention relates to a method for manufacturing a liquid composition for cleaning, corresponding to the invention, comprising the following steps:

a) supply of a liquid solvent;

b) feeding a pre-mix comprising activated citrus fiber;

c) supply of calcite abrasive particles;

b) mixing the ingredients mentioned in steps a), b) and c) at least in a partial vacuum.

At elevated levels of activated citrus fiber in the final composition, the amount of water that can be removed from the pre-mix base independently becomes excessively large, so subsequent dosing of the structuring pre-mix is not a viable solution. Instead, structured detergent compositions can be formed by first producing an activated fiber to which other ingredients are added in their usual order of addition. In addition to providing the introduction of a high level of activated fiber in the detergent liquid, this provides an additional advantage of continuing to disperse the activated fiber under high shear during the addition of subsequent ingredients, rather than as a subsequent shear step, thereby reduces the time spent on a batch.

The way to cleanse.

The cleaning of a solid surface can be carried out by simply applying a liquid composition for cleaning the solid surfaces of the invention to the surface and leaving it there for a sufficient period of time. However, preferably, after applying the composition to a hard surface, the composition is mixed. Mentioned mixing improves the cleaning performance by increasing the abrasive force exerted by the abrasive particles

- 8,024,996 calcite to stains / dirt. Mixing can be manual, such as in the form of an act of erasing and / or sweeping. Mixing can also be carried out using suitable mechanical devices known in the art. According to observations, results on further improved cleansing will be obtained if the composition is mixed using non-absorbent products, such as when using a brush or non-absorbent fabric. One example of an absorbent is a sponge or paper towel.

Therefore, in a second aspect, the invention relates to a method for cleaning a hard surface using a liquid composition for cleaning hard surfaces according to the invention, comprising the following steps:

a) applying a liquid composition for cleaning hard surfaces of the invention to a hard surface;

b) mixing said composition on a solid surface using non-absorbent agents.

Product form.

The liquid composition for cleaning hard surfaces in accordance with the invention may be a concentrated liquid, which may be diluted with, for example, water before use, or may be ready-to-use liquids. Preferably, the liquid compositions are flowable liquids.

In addition, it was found that a liquid composition for cleaning hard surfaces containing only natural and non-toxic ingredients, such as water, particles of calcite and activated citrus fiber, are characterized by good cleaning efficiency.

Therefore, in one additional aspect, the invention relates to the use of activated citrus fiber and calcite abrasive particles in a liquid composition for cleaning hard surfaces in order to obtain an effective composition for cleaning, which essentially consists of natural ingredients.

Packaging.

The liquid composition for cleaning hard surfaces of the invention may be packaged in any suitable container form. Preferably, the composition is packaged in a plastic bottle having a detachable cap / spout. The bottle may be rigid or deformable. A deformable bottle makes it possible to squeeze the bottle to facilitate a metered feed. In the case of using transparent bottles, they can be made of PET polymer. Polyethylene or clarified polypropylene may be used. Preferably, the container is transparent enough so that the liquid, together with any visual information in it, is visible from the outside. The bottle may be provided with one or more labels or a shrink film sheath, which is desirably at least partially transparent, for example 50% of the sheath surface area is transparent. The adhesive used for any transparent label should preferably not adversely affect transparency.

Devices for dosed fluid supply.

The liquid cleansing composition of the invention can be stored and dispensed using any suitable means, but containers that make easy and efficient application, such as metered-dose pumping devices, more preferably metered-dose spray devices, are particularly preferred. which are even more preferably manually actuated.

Preferably, the composition of the invention is packaged in a container including a metered dose spray device for dispensing a metered composition in the form of a spray. The metered dose spray device is preferably a trigger atomizer, but may be any mechanical means for ejecting a liquid in the form of a spray or aerosol.

The invention will now be further described with reference to the following non-limiting examples.

Examples

Performance assessment for cleaning.

Cleaning performance was evaluated using a film-to-film cleaning ratio (POP) for the \ U1RL brushing machine (also known as the Matyibae brushing machine) (δΌΤΑΤΤΑδ, M235, MapeNsChsg IR) in accordance with the representation below. The method was produced based on the publication of 81 okeu. O.K., Vitkatb, T.A., 8sketeot, V.K., Ιη νίίτο Ketoua1 о £ δίαίη \ νί11ι Oey Shpsek, I. Hey! Ke8 61 (11): 1236-1239, 1982.

Film Cleaning Ratio Test (PSC).

The stained film is slowly deposited onto bovine enamel plates over a period of time and subsequently removed using a mechanical brushing technique. The value of the FOP is estimated by removing the stain after brushing and measuring the change in the value of b * when using the chronometer. The b * values represent a black and white scale, and then they are used to calculate the percentage of purification of the chop.

Receiving a sample.

Bovine incisor teeth were cut into square plates, polished and mounted in acrylic plastic. The enamel plates thus obtained were stained using a broth containing tea / coffee / mucin.

Staining broth was obtained by mixing 40 g of instant coffee (vendor No. 8caTe), 40 g of instant tea (vendor PO Τίρδ), 30 g of mucin (from porcine stomach, type II), 0.063 g of ferric chloride with 1 liter of Tgur product! oe 8ou ΒγοΙΙι (30 g of powdered tryptone-soy broth per 1 l).

The plates were strung on wires on a spotting device and incubated at an oblique angle and at a constant temperature of 50 ° C while rotating at 2 rpm. In this way, the surface of the plate was alternately immersed in a spotting broth and dried in air. The broth is replaced daily and, after five days, the plates are removed and washed using distilled water until all loose foreign particles are removed.

After that, the plates are brushed using soft toothbrushes (soft bristles with a diameter of 0.20 mm Mei1aeyi1, flat-cut), which were soaked for 30 minutes to hydrate the bristles. The plates are brushed, thus using 10 ml of distilled water to remove loose stains.

After this, the plates are dried in air and the values of b * (b * after staining) are measured using a CrSoYa CK321 chromometer set in the color space baB.

After this, the enamel plates are ranked in accordance with increasing basic values of b * to obtain a monotonic representation of the range of spots. When using standard randomization, the plates are then dispensed into various cleaning solutions.

The machine \ U1RL has four brush heads, and use eight plates of enamel from the teeth per experimental group using two repetitions per one head. The machine \ νΐΡΛ is set for about 5 minutes brushing at 160 cycles per minute (approximately 800 brush strokes) using the test liquid solution for cleaning.

After brushing with an νΐΚΆ machine, the enamel plates are rinsed using water to remove the cleaning liquid and dried using a soft cloth to prevent any color variation.

To repeat the measurement of the b * value (b * after brushing), a chromomer is used, making four measurements per one plate.

In conclusion, the enamel plates are cleaned with pumice using a cloth (grayish-beige twill) and pumice flour on a VieGie Ogseig RöpzNeg unit to remove all traces of the visible spot. After that, the enamel plate is rinsed using distilled water, dried and measured and the value of b * (b * after cleansing with pumice) is recorded.

The cleaning efficiency is expressed as the size of the chop when using the following equation:

ChOP = 100 · (b * after brush cleansing - b * after staining) / (b * after cleansing with pumice - b * after staining).

The results are analyzed using 1MP software to evaluate the value of the results.

Pre-mixed activated citrus fiber.

A preliminary mixture containing 2 wt.% Activated citrus fiber (ACV) was obtained using the materials presented in table. 1, in accordance with the following method.

Table 1

Material % at the time of delivery Mass (g) Demineralized water 97.92 1958.4 Rogohe] OH 0.08 1,6 Negase! Af + 1ure N 2.00 40,0

Demineralized water was mixed using a paddle mixer with top drive operating at 160 rpm. The preservative Rhohe1 OH was added. After this, the citrus fiber Negbase1 AO p1u8 N Cig8Ibge (from the company NegBeOtoyz) was gradually added while ensuring no clumping. Stirring was continued for another 15 minutes to ensure sufficient swelling of the fibers before the implementation of the stage of activation. The degree of activation was realized as a result of homogenization at high pressure (HWP) at 500 bar (g).

Obtaining solutions for purification.

The solution for purification in accordance with the instructions in the following examples was obtained using the above preliminary mixture. A sufficient amount of freshly prepared pre-mixture was added to the mixer to obtain the required level of activated 10,024,996 citrus fiber in the final composition and milling was carried out for 10 minutes. After that, the remaining ingredients of the cleansing solutions were added. A homogeneous dispersion was obtained using the device 8uyeg5op (L5T) integrated in the production line, operating at 9000 rpm with a residence time of 2 minutes.

The composition of the solutions for purification.

The liquid composition for purification from examples 1 to 3 and comparative examples 1 to 6 were obtained using the composition shown in table. 2.

table 2

The composition of the liquid compositions for cleansing

% (mass.) Ingredients Example 1 Comparative Example 1 Reference Example 2 ACV 0.25 0.25 - Calcite 5 AC ¹ 10 - 10 Water Balance sheet quantity Balance sheet quantity Balance sheet quantity

¹ Trade name: Otuasag 5-ΑΥ, supplier: Otua Ogéaeg 8oy1b

Table 2 continued

% (mass.) Ingredients Example 2 Example 3 Compare Example 3 Compare Example 4 Compare Example 5 Compare Example 6 Primary alcohol ethoxylate ² 5,0 5,0 5,0 5,0 5,0 5,0 Polyacrylic acid ³ 0.5 0.5 0.5 0.5 0.5 0.5 Lemon acid 1,0 1,0 1,0 1,0 1,0 1,0 2-aminoethanol 1,0 1,0 1,0 1,0 1,0 1,0 Sygoaluap 0.3 0.3 0.3 0.3 0.3 0.3 Plain dipropylene glycolΝ-butyl ether 1,0 1,0 1,0 1,0 1,0 1,0 1,2- benzisothiazolin-3- it 0.016 0.016 0.016 0.016 0.016 0.016 Palm kernel fatty acid 0.18 0.18 0.18 0.18 0.18 0.18 Anti-foaming agent b 0.001 0.001 0.001 0.001 0.001 0.001 Clouder ^β 0.1 0.1 OD 0.1 0.1 0.1 Sodium hydroxide 0.89 0.89 0.89 0.89 0.89 0.89 ACV ⁷ 0.25 0.25 - 0.25 - - Calcite 5 Αν 10 - - - 10 - Calcite 30 Αν ^a - 10 - - - 10 Water Balance sheets th quantity in Balance sheets th quantity in Balance sheets th quantity in Balance sheets th quantity in Balance sheets th quantity in Balance sheets th quantity in

² Trade name: No. oyo 91.8EO, supplier: 8Pe11 ³ Trade name: Lsi8o1 190, supplier: KOt & Naa8 ⁴ Trade name: Sygo5 \ uap ϋΝ 195940, supplier: Igtets ⁵ Trade name: shSope ΌΒ301, supplier: ΥΒΌ Ras1ogu ⁶ Trade name: Ls8o1 OP 301, supplier: KOt & Naa8 ⁷ Pre-mix at 2 wt.% activated citrus fiber GVD (500 bar (g)) ⁸ Trade name: Otuasag 30-ΑΥ, supplier: Otua Ogeaeg 8oy1b

- 11 024996

Results.

The value of chop Mean Rms deviation Example 1 73 8.4 Comparative Example 1 4.4 4.1 Reference Example 2 45.0 5.2 Example 2 73.8 9.0 Example 3 66.6 8.7 Reference Example 3 11,4 3.8 Reference Example 4 10.8 3,5 Reference Example 5 57.5 6.0 Reference Example 6 28.9 8.7

The results clearly demonstrate the presence of a significantly improved effect on the cleaning performance of hard surfaces for a combination of calcite particles and activated citrus fiber (Example 1).

Significantly improved cleaning performance is also observed for a composition containing other typical ingredients found in hard surface cleaning compositions, such as a surfactant (Example 2, Example 3). As a matter of fact, the purification efficiency for example 1 (i.e., a natural liquid cleansing composition) is comparable to that for examples 2 and 3. Therefore, firstly, the composition according to the invention makes possible a completely natural liquid cleansing composition hard surfaces, characterized by good cleaning performance. Secondly, the composition according to the invention makes it possible to reduce the level of surfactant while having little or no effect on the purification efficiency.

Claims (15)

1. A liquid composition for cleaning hard surfaces, containing from 10 to 95 wt.% Liquid solvent, from 0.025 to 5 wt.% Activated citrus fiber and from 1 to 75 wt.% Abrasive particles of calcite, where the pH value of the liquid composition for cleaning solid surfaces is at least 8. 2. The composition according to claim 1, where the amount of calcite particles is in the range from 2 to 65 wt.%, Preferably from 3 to 60 wt.%, Preferably from 4 to 55 wt.%, Preferably from 5 to 50 wt.%, preferably from 6 to 45 wt.%. 3. The composition according to claim 1 or 2, where the average particle size of calcite is in the range from 0.1 to 500 microns, preferably is in the range from 0.5 to 200 microns, preferably is in the range from 1 to 100 microns, preferably is in the range of 2 to 75 microns, preferably in the range of 3 to 50 microns, preferably in the range of 4 to 25 microns. 4. The composition according to any one of claims 1 to 3, where the amount of activated citrus fiber in the final composition is in the range from 0.05 to 5 wt.%, Preferably from 0.1 to 4 wt.%, Preferably from 0.15 to 3 wt.%, Preferably from 0.2 to 2 wt.%. 5. The composition according to any one of claims 1 to 4, where the composition further comprises at most 50 wt.%, Preferably at most 20 wt.%, Preferably at most 10 wt.%, Preferably at most 5 wt.%, Preferably at most 1 wt.% Surfactant. 6. The composition according to any one of claims 1 to 5, where the composition contains from 35 to 92 wt.%, Preferably from 55 to 90 wt.%, Preferably from 65 to 85 wt.% Of a liquid solvent. 7. The composition according to any one of claims 1 to 6, where the liquid solvent contains at least 50 wt.%, Preferably at least 75 wt.%, Preferably at least 85 wt.%, Preferably at least 95% of water at based on the total weight of the liquid solvent. 8. The composition according to any one of claims 1 to 7, where the composition is characterized by a pH value of at least 8.5, preferably at least 9, preferably at least 9.5, preferably at least 10, preferably at least 10.5, preferably at least 11. 9. The composition according to any one of claims 1 to 8, where the composition has a viscosity in the range from 100 to 10,000 MPa-s, preferably from 200 to 8,000 MPa-s, preferably from 400 to 6,500 MPa-s, preferably from 800 to 5,000 MPa -c as measured at a shear rate of 20 s ^-1 and at a temperature of 25 ° C. 10. A method of manufacturing a liquid composition for purification according to any one of claims 1 to 9, comprising the following stages: a) supply of a liquid solvent; - 12,049,996 b) supplying a pre-mixture containing activated citrus fiber; c) supply of calcite abrasive particles; b) mixing the ingredients mentioned in steps a), b) and c) at least in a partial vacuum. 11. The method of cleaning a hard surface, comprising the following stages: a) applying a liquid composition according to any one of claims 1 to 9 on a hard surface; b) mixing said composition on a solid surface using non-absorbent agents. 12. The method according to claim 11, where the non-absorbent agent is a non-absorbent cloth or brush. 13. The use of activated citrus fiber in a liquid composition for cleaning hard surfaces containing calcite abrasive particles and a liquid solvent, to replace part or all of the surfactant with little or no effect on the cleaning efficiency. 14. The use of activated citrus fiber in a liquid composition for cleaning hard surfaces containing calcite abrasive particles and a liquid solvent, to obtain an effective composition for cleaning, which essentially consists of natural ingredients. 15. The use of activated citrus fiber in a liquid composition for cleaning hard surfaces containing calcite abrasive particles and a liquid solvent, to improve the cleaning performance.