Cleansing and disinfecting composition

The combination of povidone iodine and acylmethyl taurine salt in a cleaning and disinfecting composition addresses the issue of insufficient foaming, providing enhanced foaming and sterilization efficacy.

JP2025100258AActive Publication Date: 2025-07-03KENEI CORP
View PDF 6 Cites 0 Cited by

Patent Information

Application Number
JP2023223901
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-12-21
Publication Date
2025-07-03
Estimated Expiration
2043-12-21

AI Technical Summary

Technical Problem

Existing cleaning and disinfecting compositions, such as those described in Patent Document 1, suffer from insufficient foaming, particularly when dealing with strong dirt like sebum.

Method used

A cleaning and disinfecting composition comprising povidone iodine and acylmethyl taurine salt, preferably coconut oil fatty acid methyl taurine salt, with specific concentration ranges for both, along with optional surfactants and pH adjusters to enhance foaming and stability.

Benefits of technology

The composition achieves improved foaming and effective sterilization, even with sebum, while minimizing skin irritation and maintaining composition stability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2025100258000001
    Figure 2025100258000001
  • Figure 2025100258000002
    Figure 2025100258000002
  • Figure 2025100258000003
    Figure 2025100258000003
Patent Text Reader

Abstract

To provide a cleansing and disinfecting composition having improved foaming properties.SOLUTION: The cleansing and disinfecting composition comprises povidone-iodine and an acylmethyltaurine salt.SELECTED DRAWING: None
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to a cleaning and disinfecting composition.

Background Art

[0002] For example, Patent Document 1 discloses a cleaning and disinfecting composition containing povidone iodine and a specific surfactant such as sodium lauryl sulfate, sodium lauroyl sarcosinate, or polyoxyethylene alkyl ether.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the cleaning and disinfecting composition described in Patent Document 1, foaming is not sufficient, especially when the dirt such as sebum is strong, and further foaming has been required. Therefore, an object of the present invention is to provide a cleaning and disinfecting composition with improved foaming.

Means for Solving the Problems

[0005] A cleaning and disinfecting composition according to one embodiment of the present invention contains povidone iodine and an acylmethyl taurine salt. The concentration of the acylmethyl taurine salt is preferably 0.5 to 10 w / v%. Also, the acylmethyl taurine salt is preferably a coconut oil fatty acid methyl taurine salt. The cleaning and sterilizing composition according to one embodiment of the present invention preferably further contains at least one surfactant selected from nonionic surfactants or amphoteric surfactants such as polyoxyalkylene, polyoxyalkylene alkyl ether, alkyldimethylamine oxide, or fatty acid alkanolamide.

[0006] According to the above configuration, the foaming when cleaning fingers or the like in the cleaning and sterilizing composition can be improved.

Effect of the Invention

[0007] According to the cleaning and sterilizing composition of the present invention, even if the fingers are soiled with sebum or the like, it has good foaming and can sterilize while removing the dirt.

Mode for Carrying Out the Invention

[0008] The cleaning and sterilizing composition of the present invention contains povidone iodine and acylmethyl taurine salt.

[0009] The concentration of povidone iodine in the above cleaning and sterilizing composition is preferably 0.03 to 20 w / v%, more preferably 0.15 to 15 w / v%. If the concentration of povidone iodine is less than 0.03 w / v%, there is a risk that it may not show a sufficient sterilizing effect. On the other hand, if the concentration of povidone iodine exceeds 20 w / v%, povidone iodine may not dissolve and may precipitate.

[0010] Examples of the above acylmethyl taurine salt include lauroylmethyl taurine salt, myristoyl methyl taurine salt, palmitoyl methyl taurine salt, stearoyl methyl taurine salt, tallow fatty acid methyl taurine salt, coconut oil fatty acid methyl taurine salt, decanoyl methyl taurine salt, and the like. Among these, sodium coconut oil fatty acid methyl taurine is particularly preferred.

[0011] As the acylmethyl taurine salt, a sodium salt is preferably used. The concentration of the acylmethyl taurine salt is preferably 0.5 w / v% or more, more preferably 1.5 w / v% or more. When the concentration of the acylmethyl taurine salt is less than 0.5 w / v%, sufficient foaming cannot be obtained, and the cleaning ability may be inferior. The acylmethyl taurine salt can obtain sufficient foaming of the cleaning and sterilizing composition in a relatively small amount. On the other hand, the upper limit of the concentration of the acylmethyl taurine salt is not particularly limited, but is preferably 10 w / v% or less, more preferably 8 w / v% or less, and even more preferably 6 w / v% or less. When the concentration of the acylmethyl taurine salt exceeds 10 w / v%, further foaming cannot be expected, and there is a risk of causing skin irritation. Also, by setting it within the above range, sufficient foaming can be obtained and an increase in cost can be suppressed.

[0012] The above cleaning and sterilizing composition may contain a surfactant other than the acylmethyl taurine salt.

[0013] Examples of such surfactants include alkane sulfonates such as sodium alkane sulfonate;, alkyl amide propyl betaines such as lauric acid amide propyl betaine and coconut oil fatty acid amide propyl betaine;, alkyl glucosides such as decyl glucoside, lauryl glucoside, and coconut oil alkyl glucoside;, alkyl dimethyl amine oxides such as lauryl dimethyl amine oxide and coconut oil alkyl dimethyl amine oxide;, alkyl betaines such as lauryl betaine, stearyl betaine, and coconut oil alkyl betaine;, alkyl benzene sulfonates such as sodium decyl benzene sulfonate, sodium dodecyl benzene sulfonate, and sodium tetracyl benzene sulfonate;, alkyl sulfates such as sodium lauryl sulfate, ammonium lauryl sulfate, and triethanolamine lauryl sulfate;, α-olefin sulfonates such as sodium α-olefin sulfonate; Glycerin fatty acid esters such as polyglycerol caprylate, polyglycerol caprate, and polyglycerol laurate; Sucrose fatty acid esters such as sucrose laurate and sucrose myristate; Sulfobetaines such as lauryl hydroxysulfobetaine; Polyoxyethylene alkyl ethers such as polyoxyethylene lauryl ether; Polyoxyethylene alkyl ether sulfates such as sodium polyoxyethylene lauryl ether sulfate, ammonium polyoxyethylene lauryl ether sulfate, and triethanolamine polyoxyethylene lauryl ether sulfate; Polyoxyethylene alkyl ether acetates such as sodium polyoxyethylene alkyl ether acetate; Polyoxyethylene sorbitan fatty acid esters such as polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, and polyoxyethylene sorbitan monooleate; Lauryl sarcosine salts such as sodium lauroyl sarcosine, potassium lauroyl sarcosine, and triethanolamine lauroyl sarcosine; Fatty acid alkanolamides such as coconut oil fatty acid diethanolamide, lauric acid diethanolamide, stearic acid diethanolamide, oleic acid diethanolamide, palm kernel oil fatty acid diethanolamide, coconut oil fatty acid monoethanolamide, coconut oil fatty acid N-methyl ethanolamide, stearic acid monoethanolamide, and polyoxyethylene coconut oil fatty acid monoethanolamide; Polyalkylene glycols such as polyoxyethylene glycol, polyoxypropylene, and polyoxyethylene polyoxypropylene glycol; are included.

[0014] Among the above surfactants, nonionic surfactants or amphoteric surfactants are preferred. As nonionic surfactants, polyalkylene glycols such as polyethylene glycol and polyoxyethylene polyoxypropylene glycol, polyoxyethylene alkyl ethers such as polyoxyethylene lauryl ether, and fatty acid alkanolamides such as lauric acid diethanolamide are particularly preferred. As amphoteric surfactants, alkyldimethylamine oxides such as lauryldimethylamine oxide are particularly preferred. By adding the above surfactants, foaming, foam quality and detergency can be adjusted. The total concentration of the surfactant combination of acylmethyl taurine salt and other surfactants is preferably 0.5 to 15 w / v%, more preferably 1 to 10 w / v%. By setting it within the above range, sufficient foaming can be obtained and skin irritation can be reduced.

[0015] The above cleaning and disinfecting composition may further contain at least one selected from the group consisting of acids such as hydrochloric acid, sulfuric acid, citric acid, gluconic acid, succinic acid, acetic acid, tartaric acid, lactic acid, phosphoric acid, malic acid, and salts thereof, and alkali metal hydroxides.

[0016] Examples of the salts of the acids include alkali metal salts and alkaline earth metal salts, preferably sodium salts and potassium salts.

[0017] Examples of the alkali metal hydroxides include sodium hydroxide and potassium hydroxide.

[0018] The pH of the above cleaning and disinfecting composition can be adjusted using these compounds. The pH of the above cleaning and disinfecting composition is preferably 1.5 to 6.0. By setting the pH within the above range, the stability of the cleaning and disinfecting composition over time can be improved and skin irritation during use can be reduced.

[0019] The above-mentioned cleaning and sterilizing composition may further contain a thickening agent. Such a thickening agent is not particularly limited as long as it can adjust the kinematic viscosity of the cleaning and sterilizing composition. For example, polyhydric alcohols such as propylene glycol, 1,3-butylene glycol, dipropylene glycol, and glycerin; polymers such as povidone (polyvinylpyrrolidone), carboxyvinyl polymer, and alkyl-modified carboxyvinyl polymer; cellulose derivatives such as hypromellose (hydroxypropylmethylcellulose), hydroxyethyl cellulose, hydroxypropyl cellulose, and hydrophobized hydroxypropylmethylcellulose. Among them, glycerin is preferred. By containing a thickening agent, an appropriate viscosity can be imparted to the cleaning and sterilizing composition to prevent the cleaning and sterilizing composition from spilling from the hand during use, and the foaming can be further improved. Further, in the above-mentioned cleaning and sterilizing composition, by containing acylmethyl taurine salt, the foaming property can be improved even if a thickening agent is contained.

[0020] The kinematic viscosity of the above-mentioned cleaning and sterilizing composition is preferably 5 to 150 mm 2 / s, and more preferably 10 to 100 mm 2 / s. By setting the kinematic viscosity within the above range, when the cleaning and sterilizing composition is taken by hand, spilling from the hand can be suppressed and waste can be reduced. In addition, the foaming of the cleaning and sterilizing composition can be improved.

[0021] In addition to the above components, additives such as solvents and fragrances can be blended as necessary in the above-mentioned cleaning and sterilizing agent composition within a range that does not impair the effects of the present invention.

Examples

[0022] The present invention will be specifically described with reference to the following examples, but these examples do not limit the scope of the present invention.

[0023] Each component was mixed in the blending amounts shown in Tables 1 to 3, and finally water was added to make the total volume 100 mL to prepare a cleaning and sterilizing composition.

[0024]

Table 1

[0025]

Table 2

[0026]

Table 3

[0027] In addition, the following raw materials were used as each component. · Sodium methyl tauride of coconut oil fatty acid: NIKKOL CMT-30 (Nikko Chemicals) · Lauromacrogol: NIKKOL BL-9EX (Nikko Chemicals) · Macrogol 400: Macrogol 400R (NOF Corporation) · Macrogol 4000: Macrogol 4000R (NOF Corporation) · Macrogol 6000: Macrogol 6000 (NOF Corporation) · Macrogol 20000: Macrogol 20000 (NOF Corporation) · Polyoxyethylene (160) polyoxypropylene (30) glycol: Pronon #188P (NOF Corporation) · Lauryl dimethylamine oxide: Uniseafe A-LM (NOF Corporation) · Diethanolamide laurate: Amisol LDE-G (Kawaken Fine Chemicals) · Sodium lauryl sulfate: NIKKOL SLS (Nikko Chemicals) · Sodium lauroyl sarcosinate: Soypon SLP (Kawaken Fine Chemicals) · Sodium polyoxyethylene (2 E.O.) lauryl ether sulfate: Emal 270J (Kao Corporation) · Hypromellose ※1 : METOLOSE 90SH-4000SR (Shin-Etsu Chemical Co., Ltd.) · Hypromellose ※2:METOLOSE 60SH-4000(Shin-Etsu Chemical Co., Ltd.) ·Povidone: Kollidon® 90 F (BASF)

[0028] Regarding the cleaning and sterilizing compositions prepared in the examples and comparative examples, the appearance was evaluated, the foaming property was evaluated, and the pH was measured as follows. The results are shown in Tables 1 to 3.

[0029] (Appearance evaluation) The prepared liquid was visually observed for its appearance. The appearance was judged as follows. ○: No problems such as insolubles, gelation, separation, etc. were observed. ×: Problems such as insolubles, gelation, separation, etc. were observed.

[0030] (Foaming property evaluation) 1 mL of artificial sebum (a liquid obtained by mixing oleic acid and 2-propanol at a weight ratio of 1:9) was taken on the palm that had been previously washed with soap and running water, and rubbed until dry. After wetting this palm with water, 3 mL of the test sample was taken, and the foaming property during the cleaning and sterilizing operation of rubbing both hands together was evaluated. Note that oleic acid used for the preparation of artificial sebum was of GC purity 99.0% or higher. The foaming property was judged as follows. ○: Foaming property was exhibited. △: Slight foaming property was exhibited but it was insufficient. ×: No foaming property was exhibited.

[0031] (pH measurement) D-72 manufactured by Horiba, Ltd. was used as the pH meter. The pH meter was calibrated with a pH standard solution and the pH was measured.

Industrial applicability

[0032] According to the sterilizing and cleaning composition of the present invention, it has good foaming during use and can be used for effective sterilization and disinfection of fingers and the like.

Claims

1. Povidone iodine and, an acylmethyl taurine salt, A cleaning and sterilizing composition comprising the same.

2. The cleaning and sterilizing composition according to Claim 1, wherein the acylmethyl taurine salt is a coconut oil fatty acid methyl taurine salt.

3. The cleaning and sterilizing composition according to Claim 1 or 2, wherein the concentration of the acylmethyl taurine salt is 0.5 to 10 w / v%.

4. The cleaning and sterilizing composition according to Claim 1 or 2, further comprising at least one surfactant selected from nonionic surfactants or amphoteric surfactants.

5. The cleaning and sterilizing composition according to Claim 4, wherein the surfactant comprises at least one selected from polyoxyalkylene, polyoxyalkylene alkyl ether, alkyldimethylamine oxide or fatty acid alkanolamide.

6. The cleaning and sterilizing composition according to Claim 1 or 2, further comprising a thickener.

7. The cleaning and sterilizing composition according to Claim 6, wherein the thickener comprises at least one selected from polyhydric alcohols, hypromellose or povidone.

8. The cleaning and sterilizing composition according to Claim 6, wherein the thickener is glycerin.

Citation Information

Patent Citations

  • Povidone iodine compound, preparation method and application thereof

    CN109512683A

  • Quick soluble disposal oral cavity material

    JP1999197217A

  • Sanitizing compositions and methods

    JP2005515235A

  • Detergent composition

    JP2018131542A

  • Washing and sterilizing compositions

    JP2020075889A