UA119062C2 - Composition for producing a cleaning solution for carpets and upholstery - Google Patents

Abstract

The present invention relates to a composition in the form of a solid mixture for producing a cleaning solution for carpets and upholstery, comprising at least one complexing agent, at least one surfactant and at least one component for encapsulating impurities. The composition comprises, as a complexing agent, citric acid and/or citrate, oxalic acid and/or oxalate, a silicate, in particular a metasilicate.

Description

The present invention relates to a composition (composition) in the form of a dry (solid phase) mixture for the manufacture of a cleaning solution for cleaning carpets and soft upholstery, containing at least one complexing agent, at least one surface-active substance and at least one component for encapsulating contaminants.

The invention further relates to the use of a similar composition for the production of a cleaning solution for cleaning carpets and soft upholstery, primarily for use together with a spray-suction device.

Highly efficient cleaning of carpets (that is, primarily carpet floor coverings) and soft upholstery (for example, upholstery of upholstered furniture or upholstery inside cars) is possible mainly with the help of a spray-suction device.

At the same time, a special cleaning solution in a certain dosage is applied to the carpet to be cleaned or to the upholstery to be cleaned, which after a certain time of exposure, which can be from a few seconds to several hours, is absorbed again together with the dissolved, accordingly dispersed in it pollution by the same device. With an extremely short duration of exposure to the cleaning solution, its application and absorption can be carried out during the same work operation.

In many cases, the user of the spray-suction device receives a ready-made cleaning solution that can be poured directly into the corresponding consumable

Capacity in the device. This makes the cleaning solution particularly easy to use, as the user does not need to dissolve or dilute the product.

However, the disadvantage inherent in the production of ready-made cleaning solutions is that in this case, due to the aqueous component of the cleaning solution, it is necessary to transport and store products of relatively large mass and volume, and this problem is manifested primarily in industrial or professional applications, in which correspondingly larger amounts of cleaning solution are required.

Therefore, as an alternative to ready-made cleaning solutions, there are also dry mixtures on sale that the user needs to dissolve or dilute in water to make a cleaning solution. Such dry mixtures can be presented either in the form of powder or in the form of pressed molded products (tablets), and the latter significantly facilitate the dosing of the dry mixture.

A composition of this type can contain many different components to achieve the highest cleaning effect, but usually they contain at least the ingredients mentioned at the beginning of the description (complex formers, surface-active substances and components for encapsulating impurities).

At least one complexing agent contained in the cleaning composition is necessary primarily to reduce the hardness of water, that is, to form complexes with calcium and magnesium ions in tap water, which is used by the user to dissolve the cleaning composition. However, the complexing agent also makes a significant contribution to the cleansing effect. The compositions known from the state of the art contain primarily phosphates as a complexing agent, the presence of which is extremely undesirable from an ecological point of view, but which, however, still have not been replaced by alternative complexing agents that would provide comparable cleaning efficiency.

Based on the above, the basis of this invention was to propose a composition in the form of a dry mixture for the production of a cleaning solution for cleaning carpets and soft upholstery, the composition of which would have a high cleaning efficiency and would contain complexing agents other than phosphates.

The specified problem regarding the composition of the type indicated at the beginning of the description is solved according to the invention due to the fact that such a composition contains citric acid and/or citrate, oxalic acid and/or oxalate, as well as silicate, primarily metasilicate, as a complexing agent.

During the creation of the invention, it was established that when using exactly three specified complexing agents in combination with each other, it is possible to achieve exceptionally good results when cleaning carpets and soft upholstery, when a cleaning solution made from this composition is used for cleaning carpets or soft upholstery with a spray- suction device.

The advantage of the composition proposed in the invention is that it does not contain phosphates and is therefore environmentally less harmful to use than the corresponding compositions known from the prior art.

The cleaning efficiency of the composition proposed in the invention can be further optimized by choosing the relative amounts of different complexing agents. It is most appropriate to use citric acid and/or citrate in a mass ratio with oxalic acid and/or oxalate in the range from 5:1 to 20:1. At the same time, "citric acid and/or citrate" 60 refers to the total relative amount of free citric acid and/or one or more salts of citric acid in which these components are contained in the dry mixture. When dissolving the dry composition in water, as is known, an equilibrium is established between the variously proportioned forms of the citrate molecule, which depends on the pH value of the cleaning solution. The same applies to the expression "oxalic acid and/or oxalate".

It is preferable to further use oxalic acid and/or oxalate in a mass ratio with silicate contained in the composition proposed in the invention, ranging from 1:1 to 3/1.

A preferred silicate is, as mentioned above, a metasilicate, such as sodium metasilicate.

Along with the three specified components, the composition proposed in the invention may also contain other complexing agents. In one of the preferred options, the composition proposed in the invention also contains gluconic acid and/or gluconate as additional complexing agents.

The proportion of all complexing agents in the dry mixture in the optimal version is from 15 to 40 wt. 95, primarily from 20 to 30 wt. 95.

In one of the preferred embodiments of the invention, the proposed composition contains free citric acid, free oxalic acid and sodium metasilicate, as well as optionally sodium gluconate.

In another preferred variant, the composition proposed in the invention contains the following ingredients: - citric acid in an amount from 10 to 30 wt. 95, - optional trisodium citrate in the amount of up to 10 wt. 95, - sodium gluconate in the amount of 4 to 6 wt. 95, - oxalic acid in the amount from 1 to 3 wt. 95, - sodium metasilicate in the amount from 0.5 to 1.5 wt. 9.

Another ingredient of the composition proposed in the invention is at least one component for encapsulating contaminants. Such components bind pollution and facilitate their further removal, that is, first of all, their suction with a spray-suction device. In a preferred version, the composition proposed in the invention contains polyacrylic acid or its salt, primarily its sodium salt, as a component for encapsulating impurities.

Polyacrylic acids, respectively, their salts with

With a molecular weight in the range from 3000 to 5000 g/mol. The proportion of polyacrylic acid or its salt is preferably from 2.5 to 3.5 wt. 9.

As a surface-active substance, the composition proposed in the invention preferably contains one or more nonionic surface-active substances. The use of one or more simple ethers of polyalkylene glycols as nonionic surface-active substances, which are also called ethoxylates of fatty alcohols, has proven to be particularly advantageous.

It is obvious that, along with the specified surfactants, the composition proposed in the invention may also contain other surfactants, for example, anionic or amphoteric surfactants.

Another suitable option, in which the composition proposed in the invention also contains at least one odor-absorbing component (odor absorber). Thanks to this, in addition to the cleaning action of 3, another superior effect can be achieved when cleaning carpets or soft upholstery. It is especially preferable to use zinc ricinoleate as an odor-absorbing component.

As another preferred component, the composition proposed in the invention may contain one or more dissolution accelerators. In this case, we are talking about substances that have a particularly good solubility in water, which facilitate and accelerate the dissolution of the dry mixture, in a preferred version, the composition proposed in the invention contains sodium carbonate and/or sodium hydrogen carbonate as a dissolution accelerator.

Another preferred component in the composition proposed in the invention is cellulose fibers. They improve the flowability of the dry mixture and prevent it from clumping, which makes it possible to dispense the composition proposed in the invention without any problems.

According to this invention, the dry mixture can be presented either in the form of a powder or in the form of a pressed molded product, that is, in the form of a tablet. In the case of tablets, the dosage of the composition proposed in the invention is simplified for the user, since the user does not need any auxiliary means to measure a certain portion of the mixture.

The qualitative and quantitative composition of the dry mixture is basically the same in powder and in tablets, even though in the case of a tablet, the cleaning solution made from it usually has a lower concentration. At the same time, due to the greater convenience in dealing with tablets, it is entirely possible to ignore the slightly reduced cleaning efficiency of the cleaning solutions made from them.

However, the differences in the composition between the powder and the tablet exist in that the composition in the form of a tablet usually does not contain an odor-absorbing component, since it would be ineffective in a low dosage. In addition, the composition in the form of a tablet contains dissolution accelerators preferably in a larger relative amount, primarily in an amount from 40 to 50 wt. 9, in order to ensure the fastest possible disintegration and dissolution of the pressed molded product upon contact with water.

It is advisable to place the pressed molded product in a shell or wrapper made of a water-soluble film, primarily based on polyvinyl alcohol. Thanks to this, it is possible to avoid unwanted contact of the components of the composition with human skin.

The object of this invention is the further use of the above-described composition for the production of a cleaning solution for cleaning carpets and soft upholstery, primarily for use together with a spray-suction device.

To make a cleaning solution, the composition is dissolved in an amount preferably from 3 to 15 g in one liter of water. As stated above, when using a dry mixture in the form of a powder, the resulting cleaning solution usually has a higher concentration (for example, 10 g/l) than when using a dry mixture in the form of a pressed molded product (in this case, the concentration of the cleaning solution is, for example, only 4 g/l).

The composition proposed in the invention can be optimized to provide a relatively fast dissolution of the dry mixture, regardless of whether it is presented in the form of a powder or a tablet (for example, within 5 minutes in cold water and within one minute in warm water). This can be achieved primarily by using dissolution accelerators in the appropriate amount.

Depending on the degree of contamination, cleaning using a spray-suction device can be performed by two different methods.

When cleaning with the first method, which is designed to remove stronger dirt, first the carpet, respectively soft upholstery, is sprayed over its entire surface with a cleaning solution that can thereby affect the dirt for a certain period of time (for example, for about 5 min or during the time required for

From spraying the cleaning solution, in one room). Then a one-time or two-time spray-suction treatment is carried out (that is, a cleaning solution is sprayed in one work operation and it is sucked again). After the surface to be cleaned has dried, the crystallized and/or encapsulated dirt left on it can be removed by suction.

When cleaning with the second method, which is usually suitable for removing only weaker dirt, the carpet or soft upholstery is subjected to only a spray-absorbent treatment and then allowed to dry. Crystallized and/or encapsulated dirt can be removed by vacuuming after the carpet or upholstery has dried or at its next scheduled cleaning.

The next washing of the carpet, respectively soft upholstery with water when using the composition proposed in the invention is not necessary in principle. Thanks to this, the time required for drying is reduced, which is usually about 12 hours.

The above, as well as other advantages of the invention are explained in more detail in the following examples.

Examples 1. Dry mixtures for use in the form of powder

In this case, six different compositions proposed in the invention are made in the form of dry mixtures in the form of powder (examples 1-6), the qualitative and quantitative composition of which is listed below in Table 1.

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Cleaning solutions are made from these six dry mixtures by dissolving 10 g of each powder in a liter of water.

The cleaning effect of solutions is determined by testing the following method.

A section of a light velor carpet floor covering made of artificial fibers is contaminated with experimental contamination in a drum intended for this purpose, which is filled with steel balls, polymer granulate and 0.5 g of experimental contamination in accordance with the IZO 11378-1 B.2 standard and then rotated for 10 min with the materials loaded to it, and then for another 20 min without them.

A piece of carpet flooring soiled in this way is then vacuumed three times to remove only loosely adhered dirt. Before and after contamination, the degree of whiteness (as a measure of reflectance) is determined using a spectrocolorimeter (Eigerpo). The measured values serve as reference or reference values for the subsequent calculation of the degree of purification.

For testing compositions from examples 1-4, in this case, "Experimental pollution A" is used, and for testing compositions from examples 5 and b - more intensive "Experimental pollution B" with cement and peat components.

Contaminated pieces of carpet floor coverings are cleaned with a spray-suction device (cleaning vacuum cleaner) "Ry7i 100" (firm Aitei Kagspeg Str 5 So. KO). At the same time, when using the compositions from examples 1-4, first pass the tested surface twice with a spray-suction device, spraying it with the appropriate cleaning solution and saturating the carpet floor covering with it. After 5 minutes of exposure time, the carpet floor covering is washed twice with a cleaning solution and immediately vacuumed again, after which it is only vacuumed twice. Then the carpet floor covering is washed twice with water, vacuumed twice with water suction and finally dried for 24 hours.

When using the compositions from examples 5 and b, the tested surface is treated only once with a cleaning solution that is sprayed onto it. After 5 minutes of exposure time, the carpet floor covering is washed twice with water and vacuumed with suction, and then dried for 24 hours.

After cleaning a piece of carpet flooring in the above-described way, measure the degree of whiteness again and calculate the degree of cleaning according to the following formula;

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Indicators of the degree of purification achieved when using the compositions proposed in the invention from Examples 1-6 are shown below in Table 2.

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Regarding the obtained results, it should be noted that the indicators of the degree of purification using the compositions from examples 5 and b should not be directly compared with the indicators of the degree of purification using the compositions from examples 1-4, since in this case a different experimental pollution and a different cleaning method were used (experimental pollution B, in contrast to experimental contamination A, contains cement and peat components). Therefore, the indicators of the degree of purification are generally lower, but at the same time, even a value of approximately 35 95, which was obtained in the experiment using the composition from example 6, is already considered quite acceptable.

A comparison of the results obtained when using the compositions from examples 1 and 2 shows, first of all, that the use of meta sodium silicate as a complexing agent leads to an increase in the degree of purification compared to layered sodium silicate.

A comparison of the results obtained when using the compositions from examples 3 and 4 shows, first of all, that the addition of polyacrylic acid as a component for encapsulating impurities leads to a further increase in the degree of cleaning provided by the composition.

Comparison of the results obtained when using the compositions from examples 5 and 6,

Zo testifies first of all that the degree of purification can be increased by adding an additional nonionic surfactant (Vego! 260 product). In addition, the use of appropriate specific complexing agents indicates that instead of a combination of citric acid and trisodium citrate, it is also possible to use only citric acid. 2. Dry mixtures for the production of pressed molded products

In this case, three different compositions proposed in the invention are made in the form of dry mixtures (examples 7-9), suitable for their processing into pressed molded products (tablets).

The qualitative and quantitative composition of these dry mixes is listed below in Table 3.

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From these three compositions from examples 7-9, cleaning solutions were made by dissolving 4 g of each dry mixture in a liter of water (corresponds to the dissolution of one pressed molded product weighing 16 g in 4 l of water).

The degree of purification is determined by testing using the same method as when using compositions from examples 1-6, while testing each of the compositions from examples 7-9 using experimental contamination B with cement and peat components.

The obtained results are shown below in table 4. LYN shk "Denne Dyke "Experimental pollution B BV "Yetuviv awakening zha, aa, B

A comparison of these results shows that the cleaning efficiency achieved can be optimized by varying the relative amounts of the complexing agent as well as the components that act as dilution accelerators, which in this case are sodium carbonate and sodium bicarbonate.

Claims (18)

FORMULA OF THE INVENTION 1. Composition in the form of a dry mixture for the manufacture of a cleaning solution for cleaning carpets and soft upholstery, containing at least one surface-active substance and at least one component for encapsulating pollution and the following complexing agents: - from 10 to 30 wt. 95 citric acid, - optionally up to 10 wt. 95 trisodium citrate, - from 4 to 6 wt. 95 sodium gluconate, - from 1 to 3 wt. 95 of oxalic acid, - from 0.5 to 1.5 wt. 95 sodium metasilicate, and the total amount of all complexing agents ranges from 15 to 40 wt. 95 of the composition, and the mass ratio of citric acid and/or citrate to oxalic acid or oxalate is between 5:1 and 20:11, and the composition contains as a component for encapsulating impurities one polyacrylic acid or its salt. 2. The composition according to claim 1, in which the mass ratio of oxalic acid and/or oxalate to silicate is from 1:1 to 3:1. 3. The composition of claim 1, in which the relative amount of all complexing agents is from 20 to 30 wt. Fo. 4. The composition according to claim 1, in which the polyacrylic acid has a molecular weight in the range from 3000 to 5000 g/mol. (with; 5. The composition according to claim 1, in which the relative amount of polyacrylic acid or its salt is from 2.5 to 3.5 wt. about. b. Composition according to any of the previous items, containing as a surface-active substance one or more nonionic surface-active substances. 7. Composition according to claim 6, containing one or more simple ethers of polyalkylene glycols as nonionic surfactants. 8. The composition according to any of the previous items, which also contains at least one odor-absorbing component. 9. Composition according to claim 8, which contains zinc ricinoleate as an odor-absorbing component. 10. The composition according to any of the previous items, which also contains one or more disintegrants. 11. Composition according to claim 10, which contains sodium carbonate and/or sodium bicarbonate as a disintegrant. 12. The composition according to any of the previous items, also containing cellulose fibers to improve flowability. 13. The composition according to any of the previous items, while the dry mixture is presented in the form of a powder. 14. The composition according to any of claims 1-13, while the dry mixture is presented in the form of a pressed molded product. 15. Composition according to claim 10 or 11, containing a disintegrant in the amount of 40 to 50 wt. 95. 16. The composition according to claim 14, while the pressed molded product is covered with a shell made of a water-soluble film, primarily based on polyvinyl alcohol. 17. Application of the composition according to any of the previous items for the manufacture of a cleaning solution for cleaning carpets and soft upholstery. 18. Application according to claim 17 for the production of a cleaning solution for use together with a spray-suction device.