WO2023128948A1

WO2023128948A1 - Personal cleaning product effective against malodors

Info

Publication number: WO2023128948A1
Application number: PCT/TR2022/050587
Authority: WO
Inventors: Nurdan Didem BILIR
Original assignee: Eczacibasi Tuketim Urunleri Sanayi Ve Ticaret Anonim Sirketi
Priority date: 2021-12-27
Filing date: 2022-06-14
Publication date: 2023-07-06

Abstract

The subject of the invention relates to a personal cleaning product composition effective against the malodors and to a personal cleaning product comprising said composition. The composition developed within the scope of the invention to be effective against the malodors comprises at least one type of surfactant, at least one type of moisturizing agent, at least one type of chelating agent and at least one type of essence.

Description

PERSONAL CLEANING PRODUCT EFFECTIVE AGAINST MALODORS

Subject of the Invention

The subject of the invention relates to a personal cleaning product composition effective against the malodors and to a personal cleaning product comprising said composition.

State of the Art

The malodors may form in the houses or workplaces or in many ambiences being public spaces, and since these occasionally occurring malodors cause nuisance in the persons in the ambience, such malodors occurring despite being undesirable are expected to be eliminated in the shortest time.

In terms of classification of malodors, the acids lead to malodors. For example, the smell of sweat, the kitchen odors, the garbage odors or the mold odor are among the malodors. Another group of malodors are the odors forming in the presence of amines/nitrogen compounds. For instance, the odors forming after the use of toilets, the cigarette smell, the kitchen odors originating from the fish and other sea products, the garbage odor and the odors originating from the pets may be mentioned as the examples of this group. Another group includes the odors of the sulfur origin. The smell of sweat, the kitchen odors originating from the kitchenware like dirty dishes and from the onion or garlic, the odors possible to occur in the bathrooms, the garbage odor or the odors originating from the pets may be mentioned as the examples of this group.

Since it is unfortunately not much possible to prevent the formation of the malodors, some measures for eliminating the formed malodors are used according to the state of the art.

Although ventilating the ambience may be employed for removing the formed malodor, this method does not provide a solution to the smells originating from the individuals such as the smell of sweat and is not possible to use as a solution in cases where the fresh air supply to the ambience is not adequate or possible. Moreover, ventilation of the ambience does not product a sufficiently rapid response for eliminating the malodor.

On the other hand, the use of the products such as cologne or perfume is preferred for eliminating the odors permeating the persons such as the kitchen odors and cigarette smell or the odors originating from the persons themselves such the smell of sweat. However, such products fail to provide adequate action for the suppression of the strong odors and the combination of the smells of such products with the odors permeating the persons lead to the development of even more unpleasant odors.

Another method employed is to eliminate the malodors by way of neutralizing the same. This method includes different alternative solutions according to the cause of the odor and the area of use. It is possible to employ the methods such as neutralization with an acid, oxidation of the components like thiol, absorption of malodor with zeolite and coal, formation of complexes with metal ions such as iron (Fe) and zinc (Zn), formation of complexes with cyclodextrin and masking the malodor with essence ingredients.

However, the methods employed in the state of the art do not provide a solution for very strong odors and the essence-containing products such as cologne and perfume used for removing the malodors, besides being unable to eliminate the malodors in the ambience, even lead to worse situations when the perfume sprayed or the cologne poured on the hands combines with the malodor.

It was observed that the malodors to which the people are exposed are able to be eliminated in a short time owing to the composition developed within the scope of the invention to be effective against said tangy and strong odors and to the personal cleaning products obtained with said composition.

Object of the Invention

An object of the invention is to develop a formulation/composition with ingredients capable of being effective against the malodors. Another object of the invention is to develop a personal cleaning product capable of being effective against the malodors.

Another object of the invention is to develop a personal cleaning product such as a soap, shampoo, shower gel and wet wipe capable of being effective against the malodors.

Description of the Tables

Table 1: Scores of the product (liquid soap), which is developed within the scope of the invention and is an alternative embodiment of the invention

Detailed Description of the Invention

The composition developed within the scope of the invention to be effective against the malodors comprises at least one type of surfactant, at least one type of moisturizing agent, at least one type of chelating agent and at least one type of essence.

In an alternative embodiment, the composition developed within the scope of the invention additionally comprises at least one thickening agent.

In an alternative embodiment, the composition developed within the scope of the invention additionally comprises at least one pH regulating agent.

In an alternative embodiment, the composition developed within the scope of the invention comprises at least one preservative agent.

In an alternative embodiment, the composition developed within the scope of the invention comprises at least one agent for protection against UV rays serving the function of at least one UV filter. Within the scope of the invention, benzophenone-4 is preferably used for this purpose.

The composition comprises water as the complementary ingredient.

The composition developed within the scope of the invention comprises at least one surfactant. The use of anionic and/or nonionic surfactants is preferred within the scope of the invention. Within the scope of the invention, at least one surfactant selected from sodium laureth sulfate, or shortly SLES, disodium laureth sulfosuccinate, ammonium lauryl sulfate, potassium lauroyl sarcosinate, sodium lauroyl sarcosinate, cocamidopropyl betaine, lauryl glucoside, PEG 7 glyceryl cocoate and PEG 40 hydrogenated castor oil is used.

Sodium laureth sulfate, or shortly SLES, is an anionic surfactant present in many personal care products. Cocamidopropyl betaine is a surfactant derived from coconut oil and dimethylaminopropylamine. Lauryl glucoside is a surfactant used in the cosmetics and laundry detergents. It is a glucoside produced from glucose and lauryl alcohol. PEG 7 glyceryl cocoate is a water soluble vegetable emulsifying agent produced from glycerol and coconut oil. It is produced by way of ethoxylation of glyceryl cocoate. It is a nonionic surfactant with light yellow color and characteristic odor. It used in the cosmetics as a lubricant and softener for the skin and hair. The coconut fatty acids it contains restore the lipid barrier of the skin by enhancing the moisture retention ratio of the skin.

Within the scope of the invention, at least one moisturizer selected from polyhydric alcohols such as glycerin, propylene glycol, pentylene glycol and caprylyl glycol, cationic ingredients such as polyquaternium 7 and polyquaternium 10, esters such as C12-15 alkyl lactate, ingredients such as bisabolol reducing the irritant effect of surfactants, extracts and active ingredients, sodium lactate, sodium gluconate, sodium PCA, ethylene glycol, lactic acid, serine, urea, sorbitol and olive oil PEG-7 esters is used as the moisturizing agent.

Glycerin (glycerol) is a colorless, odorless, syrupy liquid. The vegetable glycerin is produced by fermentation. It has a skin moisturizing action and it enhances the softness of the skin. It is used at a ratio of 0.2-1.5% by weight. Olive oil PEG-7 esters provide all the benefits of olive oil, as they are very similar in composition to the olive oil fatty acid. In case they are used in the rinsed products, they renew the skin barrier and reduce the damage caused by the aggressive surfactants in the repeat washes. They reduce the irritation index. They enable the skin to remain moist by reducing the water loss from the skin.

In the composition developed within the scope of the invention, at least one chelating agent selected from succimer (dimercaptonol), dimercaprol (BAL), sodium stannate, diethylenetriaminepentaaceticacid, ethylenediaminetetraaceticacid (EDTA) and tetrasodiumglutamatediacetate is used as the chelating agent. The chelating agents are the ligands, which are able to form two or more coordinate covalent bonds with a metal ion and which constitute together with these metal ions the complexes (chelates) with a stable structure that are usually water-soluble. In this way, the chelating agents reduce the effect of the metal ions through the complexes they form. Although they are not antioxidants, the chelating agents are effective antioxidant synergists as they remove from the ambience the metal ions catalyzing the oxidation.

In an alternative embodiment, the composition developed within the scope of the invention additionally comprises at least one pH regulating agent. The use of citric acid or lactic acid is preferred as the pH regulating agent.

In an alternative embodiment, the composition developed within the scope of the invention comprises at least one thickening agent. At least one agent selected from sodium chloride, acrylate polymers and sodium sulfate is preferred as the thickening agent.

In an alternative embodiment, the composition developed within the scope of the invention comprises at least one preservative agent. At least one preservative agent selected from phenoxyethanol, ethyl hexyl glycerin, iodopropynyl butylcarbamate, bronopol, methylparaben, benzyl alcohol, DMDM hydantoin, sodium benzoate, potassium sorbate, methylisothiazolinone, methyl chloroisothiazolinone and benzisothiazolinone is preferred as the preservative agent.

In an alternative embodiment, the composition developed within the scope of the invention comprises at least one agent for improving the product appearance. For this purpose, the use of at least one agent selected from sodium laureth sulfate, glycol distearate, cocamide MEA and laureth-10 or at least one type of opacifier selected from styrene/acrylate copolymers and coco-glucoside or at least one type of coloring agent/dyestuff may be preferred.

An alternative embodiment of the invention comprises at a ratio of 0.3-20% by weight at least one surfactant, at a ratio of 0.2-2% by weight at least one moisturizing agent, at a ratio of 0.05-0.5% by weight at least one chelating agent and at a ratio of 0.1-2% by weight at least one type of essence.

The essence used in the composition developed within the scope of the invention comprises at least one neutralizing agent in order to eliminate the malodors. Said neutralizing agent is preferably betahydrane and the use of betahydrane-containing essences is preferred within the scope of the invention.

An alternative embodiment of the invention additionally comprises at a ratio of 0.3-1% by weight at least one preservative agent.

An alternative embodiment of the invention additionally comprises at a ratio of 0.05-0.5% by weight at least one thickening agent.

An alternative embodiment of the invention additionally comprises at a ratio of 0.01-0.1% by weight at least one agent for protection against UV rays.

In an embodiment, the composition developed within the scope of the invention comprises as the surfactant at a ratio of 5-10% by weight at least one anionic surfactant, at a ratio of 1-5% by weight at least one nonionic surfactant and at a ratio of 1-5% by weight at least one other auxiliary surfactant. In said embodiment, the use of sodium laureth sulfate as the anionic surfactant and of PEG 7 glyceryl cocoate and lauryl glucoside as the nonionic surfactant is preferred. The use of cocamidopropyl betaine is preferred as the auxiliary surfactant. This embodiment comprises at a ratio of 0.05-0.5% by weight at least one chelating agent. In said embodiment, EDTA is preferably used as the chelating agent. Said embodiment comprises at a ratio of 0.2-1% by weight at least one moisturizing agent and at a ratio of 0.1-2% by weight at least one type of essence. This embodiment additionally comprises at a ratio of 0.3-1% by weight at least one preservative agent, at a ratio of 0.05- 0.5% by weight at least one thickening agent and at a ratio of 0.01-0.1% by weight at least one agent for protection against UV rays. In said embodiment, the use of sodium sulfate as the thickening agent and of benzophenone-4 as the agent for protection against UV rays is preferred. The embodiment additionally comprises deionized water.

Another alternative embodiment of the composition developed within the scope of the invention comprises as the surfactant at a ratio of 0.2-2% by weight at least one nonionic surfactant and at a ratio of 0.1-1% by weight at least one auxiliary surfactant. This embodiment comprises PEG 7 glyceryl cocoate and PEG 40 hydrogenated castor oil as the nonionic surfactant and cocamidopropyl betaine as the auxiliary surfactant. This embodiment comprises at a ratio of 0.3-2% by weight at least one moisturizing agent, at a ratio of 0.05-0.5% by weight at least one chelating agent and at a ratio of 0.1-1% by weight at least one type of essence. In said embodiment, EDTA is used as the chelating agent. This embodiment of the invention additionally comprises at a ratio of 0.3-1% by weight at least one preservative agent.

The choices of fragrance for the composition developed within the scope of the invention may include, but are not limited to, the floral aldehydic fragrances with green, water, sea, ozone, melon and orange blossom notes, the citrus and fruity fragrances with lemon, orange, cologne and freshness notes, and the floral and fruity fragrances with white flowers, jasmine, apple, pear and peach notes.

The personal cleaning products such as liquid soap, shower gel, shampoo, foaming soap and wet wipe obtained with the composition developed within the scope of the invention are also included within the scope of the invention.

The compositions developed within the scope of the invention were subjected to the activity tests.

Odor panelist tests were performed according to the specified protocol for the products such as liquid soap, foaming soap and wet wipe obtained with the composition developed within the scope of the invention. The essence ratios were adjusted to be optimum based on the test results. The hands were contacted with the odor-emitting materials before the use of the product and the hands were then washed with the liquid soap. The strength of the malodor and the ratio of perception of the malodor were assessed by way of smelling at the beginning and about 30 minutes later.

For the performance testing, after the hands were contacted with the malodor-generating onion, garlic, fish, kebab, minced meat/raw meat, laundry bleach, cigarette and metal, the odor removal performance by the use of the product was evaluated. All the kitchen odors and the cigarette smell were evaluated above 4 points at the end of the tests. The performance in removing the odor of metal and laundry bleach was also found successful.

During the tests, the subjects were asked whether they found the product appealing, whether the property of the product was noticed in every use, whether it would be preferable over the other soaps and whether they would be willing to pay more for this product than the other soaps. The results were evaluated as positive.

The products developed within the scope of the invention were subjected to stability tests, freezing-thawing test, sun test, organoleptic (color, odor, appearance) test, solid matter content test, pH test, viscosity test, density test and microbiological tests. For the stability tests, the tin can packages were cut open and whether the products interacted with the metal was checked. Within the scope of the tests, the liquid containing the product samples were frozen at -15°C and then thawed. The clarity of the liquid was checked. The liquid was kept at 4°C under the refrigerator conditions and the clarity of the liquid was checked. In order to determine whether the products and the perfume ingredients of the same would be affected by the sun, the UV test (sun test) was performed in a sun test device.

For the stability checks, the products were kept under the refrigerator conditions (4°C), oven conditions (40°C), ambient conditions (25°C) and solar conditions. The criteria that could change during the shelf life were monitored at specified intervals for 3 months during the stability tests. For the stability tests; the pH, viscosity, solid matter content and density values of the filled products were measured and the products were subjected to the organoleptic checks and whether the measured values were consistent with the initial measurement values prior to stability testing was checked for the purpose of verifying whether the aggressive conditions to which the products were exposed affected the properties of the products. The microbiological conformity test was performed on the products in order to verify that the bacteria, mold and fungi undesirable pursuant to the regulation on cosmetics did not grow in the finished products.

For the essence checks, the stability of the essences was assessed by comparing the samples kept in the oven and in the refrigerator and evaluating the samples in terms of fragrance perception ratio and fragrance change at the end of 3 months. The essences the fragrance of which became excessively weak and the fragrance direction of which altered were ruled out.

The color checks for the critical products were performed in the beginning and at specified intervals by means of a colorimeter. The color stability was assessed according to color change.

The products successfully passing the microbiological conformity tests were subjected to the preservative activity test (challenge test) in order to observe the performance of the preservatives used in the products in inhibiting the microbial growth. The water-based products were sent to analysis for testing the activity of the preservatives in the product that provide the in-package preservation and the results were evaluated as conforming.

Within the scope of the invention, a composition effective against the undesirable heavy odors such as the odors of onion, garlic, cigarette, laundry bleach, meat, fish and metal has been developed and the personal cleaning products have been obtained by using said composition.

Claims

1. A composition effective against the odors characterized in that the composition comprises

• at least one type of surfactant,

• at least one type of moisturizing agent,

• at least one type of chelating agent, and

• at least one type of essence.

2. A composition according to Claim 1 characterized in that the composition additionally comprises at least one thickening agent.

3. A composition according to Claim 1 or 2 characterized in that the composition additionally comprises at least one agent for protection against UV rays serving the function of a UV filter.

4. A composition according to any one of Claims 1-3 characterized in that the composition additionally comprises at least one agent for improving the product appearance.

5. A composition according to any one of the preceding claims characterized in that the composition additionally comprises at least one preservative agent.

6. A composition according to any one of the preceding claims characterized in that the surfactant is an anionic and/or nonionic surfactant.

7. A composition according to any one of the preceding claims characterized in that said essence comprises at least one type of neutralizing agent.

8. A composition according to Claim 7 characterized in that said neutralizing agent is betahydrane. A composition according to any one of the preceding claims characterized in that said surfactant is at least one surfactant selected from sodium laureth sulfate, or shortly SLES, disodium laureth sulfosuccinate, ammonium lauryl sulfate, potassium lauroyl sarcosinate, sodium lauroyl sarcosinate, cocamidopropyl betaine, lauryl glucoside, PEG 7 glyceryl cocoate and PEG 40 hydrogenated castor oil. A composition according to any one of the preceding claims characterized in that the composition comprises as the moisturizing agent at least one moisturizer selected from polyhydric alcohols such as propylene glycol, pentylene glycol and caprylyl glycol, cationic ingredients such as polyquaternium 7 and polyquaternium 10, esters such as C12-15 alkyl lactate, ingredients reducing the irritant effect of surfactants such as bisabolol, extracts and active ingredients, sodium lactate, sodium gluconate, sodium PCA, ethylene glycol, glycerin, lactic acid, serine, urea, sorbitol and olive oil PEG-7 esters. A composition according to any one of the preceding claims characterized in that the composition comprises as the chelating agent at least one chelating agent selected from succimer (dimercaptonol), dimercaprol (BAL), sodium stannate, diethylenetriaminepentaaceticacid, ethylenediaminetetraaceticacid (EDTA) and tetrasodiumglutamatediacetate. A composition according to any one of Claims 2-11 characterized in that said thickening agent is at least one agent selected from sodium chloride, acrylate polymers and sodium sulfate. A composition according to any one of Claims 5-12 characterized in that said preservative agent is at least one preservative agent selected from phenoxyethanol, ethyl hexyl glycerin, iodopropynyl butylcarbamate, bronopol, methylparaben, benzyl alcohol, DMDM hydantoin, sodium benzoate, potassium sorbate, methylisothiazolinone, methyl chloroisothiazolinone and benzisothiazolinone. A composition according to any one of Claims 4-13 characterized in that said additional agent for improving the product appearance is at least one agent selected from sodium laureth sulfate, glycol distearate, cocamide MEA and laureth-10 or is at least one type of opacifier selected from styrene/acrylate copolymers and coco-glucoside or is at least one type of coloring agent/dyestuff. A composition according to any one of the preceding claims characterized in that the composition additionally comprises at least one type of pH regulating agent. A composition according to Claim 15 characterized in that the composition comprises citric acid or lactic acid as the pH regulating agent. A composition according to any one of the preceding claims characterized in that the essence is a betahydrane-containing essence. A composition according to Claim 1 characterized in that the composition comprises said surfactant at a ratio of 0.3-20% by weight, said moisturizing agent at a ratio of 0.2-2% by weight, said chelating agent at a ratio of 0.05-0.5% by weight and said essence at a ratio of 0.1-2% by weight. A composition according to Claim 1 characterized in that the composition comprises

• at least one nonionic surfactant at a ratio of 0.2-2% by weight and at least one auxiliary surfactant at a ratio of 0.1-1% by weight as the surfactant,

• said moisturizing agent at a ratio of 0.3-2% by weight,

• said chelating agent at a ratio of 0.05-0.5% by weight, and

• said essence at a ratio of 0.1-1% by weight. A composition according to Claim 19 characterized in that the composition comprises 0.1-1% by weight PEG 7 glyceryl cocoate and at a ratio of 0.1-1% by weight PEG 40 hydrogenated castor oil as nonionic surfactants and at a ratio of 0.1-1% by weight cocamidopropyl betaine as the auxiliary surfactant. A composition according to Claim 1 characterized in that the composition comprises

• at least one anionic surfactant at a ratio of 5-10% by weight, at least one nonionic surfactant at a ratio of 1-5% by weight and at least one other auxiliary surfactant at a ratio of 1-5% by weight as the surfactant,

• said chelating agent at a ratio of 0.05-0.5% by weight,

• said moisturizing agent at a ratio of 0.2-1% by weight, and

• said essence at a ratio of 0.1-2% by weight. A composition according to Claim 21 characterized in that the composition additionally comprises at a ratio of 0.05-0.5% by weight at least one thickening agent. A composition according to Claim 22 characterized in that said thickening agent is at least one agent selected from sodium chloride, acrylate polymers and sodium sulfate, and is preferably sodium sulfate. A composition according to any one of Claims 21-23 characterized in that the composition additionally comprises at a ratio of 0.01-0.1% by weight at least one agent for protection against UV rays. A composition according to Claim 24 characterized in that said agent for protection against UV rays is benzophenone-4. A composition according to any one of Claims 19-25 characterized in that the composition additionally comprises at a ratio of 0.3-1% by weight at least one preservative agent.

27. A composition according to any one of Claims 21-26 characterized in that the composition comprises sodium laureth sulfate as the anionic surfactant and PEG 7 glyceryl cocoate and lauryl glucoside as the nonionic surfactant.

28. A composition according to any one of Claims 21-27 characterized in that the composition comprises cocamidopropyl betaine as the auxiliary surfactant.

29. A composition according to any one of Claims 19-28 characterized in that said chelating agent is at least one chelating agent selected from succimer (dimercaptonol), dimercaprol (BAL), sodium stannate, diethylenetriaminepentaaceticacid, ethylenediaminetetraaceticacid (EDTA) and tetrasodiumglutamatediacetate, and is preferably EDTA.

30. A composition according to any one of Claims 26-29 characterized in that said preservative agent is at least one preservative agent selected from phenoxyethanol, ethyl hexyl glycerin, iodopropynyl butylcarbamate, bronopol, methylparaben, benzyl alcohol, DMDM hydantoin, sodium benzoate, potassium sorbate, methylisothiazolinone, methyl chloroisothiazolinone and benzisothiazolinone.

31. A composition according to any one of Claims 19-30 characterized in that said moisturizing agent is at least one type of moisturizer selected from polyhydric alcohols such as propylene glycol, pentylene glycol and caprylyl glycol, cationic ingredients such as polyquaternium 7 and polyquaternium 10, esters such as C12-15 alkyl lactate, ingredients such as bisabolol reducing the irritant effect of surfactants, extracts and active ingredients, sodium lactate, sodium gluconate, sodium PCA, ethylene glycol, glycerin, lactic acid, serine, urea, sorbitol and olive oil PEG-7 esters.

32. A personal cleaning product characterized in that the personal cleaning product comprises a composition according to any one of the preceding claims. A personal cleaning product according to Claim 32 characterized in that the personal cleaning product is a liquid soap or a foaming soap or a shampoo or a shower gel or a wet wipe.