KR20250138890A - Antimicrobial and Deodorants Composition with low irritant - Google Patents

Abstract

The present invention relates to an antibacterial and deodorizing composition having antibacterial properties and cleaning power while being hypoallergenic, comprising ethanol, a nonionic surfactant, laurylpyridinium chloride, methyl hydrogenated rosinate, and menthyl acetate, and an antibacterial and deodorizing agent comprising the same.

Description

Antimicrobial and Deodorants Composition with Low Irritant

The present invention relates to a hypoallergenic antibacterial deodorizing composition, and more particularly, to an antibacterial deodorizing composition having hypoallergenicity, antibacterial properties, and cleaning power, comprising ethanol, laurylpyridinium chloride, a nonionic surfactant, methyl hydrogenated rosinate, and menthyl acetate, and an antibacterial deodorant comprising the same.

Deodorization involves removing the gas molecules that cause odors. Deodorizing agents typically remove the odor-causing gas by adsorption or through chemical or combustion reactions. These deodorizing agents are widely used in refrigerators, bathrooms, shoe cabinets, and other places.

Among these, chemical deodorization methods remove odorous gases by oxidizing and decomposing them. Highly reactive substances like chlorine and ozone are used as deodorizers. A representative deodorizing agent is chlorine dioxide, which is typically found in gel-type deodorizers. It slowly evaporates, releasing chlorine gas to eliminate odors.

Refrigerators, bathrooms, and shoe cabinets, where deodorizers are commonly used, contain not only foul odors but also a large number of microorganisms like bacteria and other unsanitary contaminants. Therefore, cleaning agents with antibacterial or sterilizing properties are added to maintain a sanitary condition.

For example, traditionally, products (such as bleach) primarily used hydrochloric acid (HCl), a type of strong acid, as their main ingredient to disinfect and sterilize microorganisms. However, while hydrochloric acid has a sterilizing effect based on its strong oxidizing power and subsequent disinfecting effect, it also causes strong corrosion and, when used in contact with skin, can cause dermatitis and unpleasant odors.

Additionally, conventional toilet or bathroom cleaners, when diluted in hard water, produce white sediment, leaving stains or residue after use.

The present invention provides an antibacterial and deodorizing composition that can provide antibacterial and sterilizing functions while solving environmental problems by reducing the use of hydrochloric acid, phosphoric acid, or hazardous substances.

The present invention provides an antibacterial and deodorizing composition having excellent cleaning power that dissolves well in water and leaves no sediment or stains.

The present invention provides an antibacterial and deodorizing composition that can be used not only as a bathroom cleaner but also as a hand cleaner.

In one embodiment, the present invention

10-20 wt% ethanol;

Laurylpyridinium chloride 5-15 wt%;

20-40 wt% nonionic surfactant;

5-15 wt% methyl hydrogenated rosinate;

Menthyl acetate 10-20 wt%; and

Regarding an antibacterial and deodorizing composition containing 5 to 15 wt% of a viscosity modifier.

In another aspect, the present invention relates to an antibacterial deodorant comprising 0.1 to 15 parts by weight of the antibacterial and deodorant composition per 100 parts by weight of water.

The deodorizing composition of the present invention uses methyl hydrogenated rosinate, which has low toxicity and low vapor pressure, as a deodorizing agent, and lauryl pyridinium chloride and ethanol, which have excellent antibacterial and sterilizing effects but low irritation, as a sterilizing agent, thereby reducing environmental problems and human harmfulness problems.

The composition of the present invention can provide a deodorant having excellent cleaning power that does not leave sediment or stains by using polyoxyethylene (23) lauryl ether, which is a nonionic surfactant, and including a fragrance and a sterilizer having high solubility in water.

The present invention can be fully achieved through the following description. It should be understood that the following description describes preferred embodiments of the present invention and is not necessarily limited thereto. Furthermore, the attached drawings are provided to aid understanding and are not intended to limit the present invention. Details regarding individual components can be appropriately understood through the specific intent of the related descriptions described below.

Terms used in this specification may be defined as follows:

When we say that a component "includes" something, we mean that it may also include other components and/or steps, unless otherwise stated.

The antibacterial and deodorizing composition of the present invention comprises ethanol, a nonionic surfactant, methyl hydrogenated rosinate, menthyl acetate, laurylpyridinium chloride, and a viscosity modifier.

The above ethanol is used as a solvent and disinfectant (antibacterial) ingredient. Ethanol can be used in an antibacterial and deodorizing composition at a concentration of 10-20% by weight.

Generally, ethanol-based disinfectants with ethanol concentrations greater than 60% by weight exhibit broad antibacterial efficacy against bacteria, viruses, parasites, and fungi. However, safety concerns have been raised, such as inhalation of ethanol vapor. Conversely, when ethanol concentrations are below 40% by weight, antibacterial efficacy decreases sharply.

The composition of the present invention uses 10 to 20 wt% of ethanol, which is lower than 40 wt%, and contains 5 to 15 wt% of laurylpyridinium chloride, which is used as an antibacterial agent or preservative, thereby maintaining the antibacterial properties of the composition while reducing irritation to the human body (skin or eyes) due to vaporization.

In addition, the above-mentioned laurylpyridinium chloride has a short carbon number, which allows for excellent solubility and diffusion in water, and has a lower vapor pressure than ethanol, which can reduce irritation to the human body.

The above laurylpyridinium chloride can also perform a deodorizing function.

If the above laurylpyridinium chloride is included in an amount of less than 5 wt%, the sterilizing power may be weakened.

Additionally, the total weight of the lauryl pyridinium chloride and ethanol may be no more than 35% by weight. If the weight exceeds 35% by weight, sterilizing power may be enhanced, but skin irritation may also increase.

The composition may contain 20 to 40 wt% of a surfactant. The surfactant may be a cationic surfactant, an anionic surfactant, or a nonionic surfactant.

The cationic surfactant may be selected from dodecyl ammonium chloride, cetyltrimethylammonium bromide, alkylammonium methosulfate, alkyldimethylammonium chloride, and mixtures thereof.

The anionic surfactant may be selected from sodium stearate, sodium laurate, sodium palmitate, potassium stearate, potassium laurate, potassium palmitate, sodium lauryl sulfate, sodium dodecylbenzene sulfonate, and mixtures thereof.

The above nonionic surfactant may be a polyoxyethylene alkyl ether, a fatty acid sorbitan ester, a fatty acid diethanolamine, or an alkyl monoglyceryl ether, and preferably, polyoxyethylene (23) lauryl ether, which is a polyoxyethylene-based surfactant.

The above nonionic surfactants can function as surfactants even at lower concentrations than ionic surfactants and have the advantage of causing less skin irritation. Therefore, nonionic surfactants are preferred as the surfactant. Furthermore, among nonionic surfactants, polyoxyethylene (23) lauryl ether, which has excellent compatibility with ethanol and laurylpyridinium chloride, is most preferred.

The composition of the present invention may use 5 to 15 wt% of methyl hydrogenated rosinate and 10 to 20 wt% of menthyl acetate as a fragrance.

The above methyl hydrogenated rosinate may be an ester of methyl alcohol and hydrogenated alicyclic acid derived from rosin. The above methyl hydrogenated rosinate may be a naturally derived ingredient.

The above-mentioned methyl hydrogenated rosinate is a fragrance with low vapor pressure and hypoallergenic properties. In particular, the above-mentioned methyl hydrogenated rosinate has excellent solubility in ethanol and water.

The above-mentioned menthyl acetate is a fragrance ingredient with a soft mint and rose scent. When the composition is diluted in water and sprayed or used as a detergent, it can block ammonium or chlorine odors and provide a minty scent.

The antibacterial and deodorizing composition of the present invention may additionally include 1 to 5 wt% of limonene, 1 to 5 wt% of menthol, 1 to 5 wt% of dihydromyrcenol, and 0.1 to 1 wt% of hexyl cinnamic aldehyde as a fragrance.

The antibacterial and deodorizing composition of the present invention may contain 5 to 15 wt% of a viscosity modifier. If the viscosity modifier is contained in a small amount, it may be difficult to ensure stability of the formulation. The viscosity modifier may be at least one selected from the group consisting of hexylene glycol, hydrated silica, silica dimethicone silylate, silica dimethyl silylate, silica silylate, silica caprylyl silylate, silica cetyl silylate, hydrogenated styrene/isoprene copolymer, silica dimethyl silylate, and hydrogenated styrene/butadiene copolymer, and preferably hexylene glycol.

The above-mentioned hexylene glycol is an aliphatic alcohol that can reduce the viscosity of the composition. Additionally, the hexylene glycol also has deodorizing and solvent functions.

In another aspect, the present invention relates to an antibacterial deodorant comprising 0.1 to 20 parts by weight, preferably 0.1 to 15 parts by weight, of the antibacterial and deodorant composition per 100 parts by weight of water.

More specifically, the antibacterial deodorant can be used as an air freshener or bathroom or kitchen cleaner by containing 5 to 15 parts by weight, preferably 5 to 12 parts by weight, of the antibacterial deodorant composition per 100 parts by weight of water.

In addition, the antibacterial deodorant can be used as a hand sanitizer, cosmetic composition, air freshener, bathroom or kitchen cleaner by adding 0.1 to 5 parts by weight, preferably 0.5 to 2 parts by weight, of the antibacterial deodorant composition to 100 parts by weight of water.

The above antibacterial and deodorant composition is highly soluble in water, so no separate solubilizer is required. Furthermore, the antibacterial and deodorant composition exhibits excellent antibacterial and sterilizing effects and cleansing power, while causing minimal skin irritation, making it suitable for use in hand sanitizers and cosmetic compositions.

Hereinafter, the present invention will be described in more detail through examples, but the present invention is not limited to these examples.

Examples 1-4, Comparative Examples 1-4

As shown in Table 1 below, the compositions of Examples 1 to 4 and Comparative Examples 1 to 4 were prepared. 10 g of the compositions were diluted in 1 L of water to obtain the final antibacterial and deodorant.

Example 5

10 g of the composition prepared in Example 1 was diluted in 100 g of water to obtain the final antibacterial and deodorant.

Example 6

10 g of the composition prepared in Example 2 was diluted in 100 g of water to obtain the final antibacterial and deodorant.

Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 ethanol 20 15 20 20 20 10 35 20 laurylpyridinium
chloride 15 15 15 5 20 10 - 5 polyoxyethylene lauryl ether 30 35 30 40 15 45 30 - Sodium lauryl sulfate 40 Methyl hydrogenated rosinate 10 10 10 10 15 10 10 10 Menthyl acetate 15 15 15 15 20 15 15 15 Hexylene glycol 10 10 10 10 10 10 10 10 limonene 5 menthol 2 Hydromyrcenol 2 Hexyl cinnamic aldehyde 1

Antibacterial test

Escherichia coli (strain number 2571) was obtained from the Korea Research Institute of Bioscience and Biotechnology (KCTC), and the initial bacterial count of the obtained E. coli was diluted to 10 ⁶ cfu/㎖ for use. The diluted E. coli was inoculated into 5 g of the antibacterial and deodorant agents of Examples 1 to 6 and Comparative Examples 1 to 4 and cultured at 35°C for 24 hours. The number of remaining viable cells was observed and evaluated as follows.

5: Viable cell count less than 100, 4: Viable cell count 100~10 ³

3: Viable bacteria count 10 ³ ~ Less than 10 ⁴ , 2:10 ⁴ ~ 10 ⁵

1:10 ⁵ ~ 10 ⁶

Cleaning power test

5g of the antibacterial and deodorant prepared in the Examples and Comparative Examples was placed in a spray bottle and sprayed onto a whiteboard with writing on it using a water-based pen and an oil-based pen, respectively, and then wiped with a wet tissue. The degree of wipe-off is indicated in Table 2 below.

5: Excellent, 4: Good, 3: Average, 1: Poor

Deodorization test

Nine beakers containing 5 g of a 2 ppm ammonia solution were prepared. Eight beakers were each mixed with 5 g of the antibacterial and deodorant prepared in the examples and comparative examples. One beaker was left without the antibacterial and deodorant. The test was conducted on 10 adult men and women. The evaluators compared the odors of the beakers without the antibacterial and deodorant and those containing the examples and comparative examples. The deodorization levels were evaluated as follows and are shown in Table 2.

5: Almost no odor, 4: Odor reduced by 60-80%,

3: Odor reduced by 30-60%, 1: Similar to initial condition

eye irritation test

Beakers containing 5 g of the antibacterial and deodorant prepared in the examples and comparative examples were prepared. Ten adult men and women were tested. The evaluators maintained a distance of 30 cm from the beakers and inhaled the scent for one minute. The irritation to the eyes and respiratory system was rated on a scale of 1 to 5.

5: No irritation, 3: Mild irritation (uncomfortable smell or headache)

1: Strong stimulation

Skin irritation test

Beakers containing 5 g of the antibacterial and deodorant prepared in the Examples and Comparative Examples were prepared. Ten adult men and women were tested, and the antibacterial and deodorant was evenly applied to the wrists of 10 subjects, each 10 times at 10-minute intervals, in 1-cm-diameter patches. After complete drying, the skin irritation index was averaged on a scale of 1 to 5. The results are shown in Table 2.

5: No stimulation, 3: Mild stimulation

1: Strong stimulation

Antibacterial test cleansing power Deodorization test eye irritation skin irritation Example 1 4 4 4.3 5 4.7 Example 2 4 5 4.4 5 4.6 Example 3 4 4 4.4 5 4.5 Example 4 4 5 4.1 5 4.5 Example 5 5 5 4.9 5 4.1 Example 6 5 5 5 5 4.0 Comparative Example 1 4 3 4.5 5 4.6 Comparative Example 2 2 5 3.5 5 4.5 Comparative Example 3 4 5 2.5 5 4.2 Comparative Example 4 4 5 2.9 5 3.8

Examples 1 to 4 were able to significantly reduce the viable count of E. coli (less than 10 ³ ) by adding more than 5 wt% of laurylpyridinium chloride, even though ethanol was used in a low amount of 15 to 20 wt%. Furthermore, Examples 1 and 5 reduced the viable count by more than 99%. In contrast, Comparative Example 2 had a low sterilizing effect due to the small amounts of ethanol and laurylpyridinium chloride, which are sterilizing agents.

In Examples 2, 4, 5, and 6, writings written with water-based and oil-based pens were easily erased in one stroke. However, in Comparative Example 1, writing written with an oil-based pen could be erased with multiple wipes. Examples 1 and 3 demonstrated cleaning power intermediate to that of Example 2 and Comparative Example 1.

Examples 1 to 3 showed a significant reduction in ammonia odor, while Example 4 still retained a slightly unpleasant ammonia odor. In contrast, Comparative Examples 2 to 4 showed a readily detectable ammonia odor. In contrast, Examples 5 and 6 showed virtually no ammonia odor.

Examples 1 to 4 showed minimal skin irritation, while Examples 5 and 6 showed mild irritation. Comparative Example 4 caused significant irritation, with the wrist feeling itchy or tingling.

We have discussed specific embodiments of the present invention so far. Those skilled in the art will understand that the present invention can be implemented in modified forms without departing from its essential characteristics. The scope of the present invention is set forth in the claims, not the foregoing description, and all differences within the scope equivalent thereto should be construed as encompassed by the present invention.

Claims (5)

10-20% by weight of ethanol;
5 to 15 wt% of laurylpyridinium chloride;
20-40 wt% nonionic surfactant;
METHYL HYDROGENATED ROSINATE 5-15 wt.;
Menthyl acetate (flavoring agent) 10-20 wt%; and
An antibacterial and deodorizing composition comprising 5 to 15 wt% of a viscosity modifier. An antibacterial and deodorizing composition according to claim 1, characterized in that the nonionic surfactant is polyoxylethylene alkyl ether, fatty acid sorbitan ester, fatty acid diethanolamine, or alkyl monoglyceryl ether. An antibacterial and deodorizing composition according to claim 1, characterized in that the nonionic surfactant is polyoxyethylene (23) lauryl ether, and the viscosity modifier is hexylene glycol. In the first paragraph, the antibacterial and deodorizing composition is an air freshener.
1-5% by weight of limonene, 1-5% by weight of menthol, 1-5% by weight of dihydromyrcenol and
An antibacterial and deodorizing composition characterized by containing 0.1 to 1 wt% of hexyl cinnamic aldehyde. An antibacterial deodorant comprising 0.1 to 15 parts by weight of an antibacterial and deodorant composition according to any one of claims 1 to 4 in 100 parts by weight of water.