JPH0366609A - Cleaning agent composition - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention has cleaning properties due to mild degreasing power, is less irritating to the skin, has high viscosity, is slightly acidic, and has a long shelf life. This invention relates to an excellent face and body cleansing composition.

[Prior Art and Section B] Typical examples of conventionally used cleaning compositions include salts obtained by neutralizing unneutralized mono- or dialkyl phosphate esters with an alkaline substance. It will be done. In this case, it is divided into sodium salt, potassium salt, alkanolamine salt, etc. depending on the alkaline substance used for neutralization.

However, sodium salts and potassium salts have poor solubility in water and high Kraft points, and crystals precipitate at low temperatures, resulting in a separated aqueous layer.

In addition, alkanolamine salts have increased fluidity, resulting in a decrease in viscosity.

Therefore, when using sodium salts, potassium salts, alkanolamine salts, etc. alone, it is impossible to obtain a highly viscous detergent composition that is stable at room temperature. In this respect, it was not fully satisfactory as a cleaning composition.

As a means of compensating for these drawbacks, additives such as sodium lauroyl methylalanine and sodium polyoxyethylene alkyl ether sulfate are considered to be incorporated to prevent crystal precipitation, and hardened palm is added to improve viscosity. Additives such as sodium oil fatty acid glyceryl sulfate, polio, sodium xyethylene alkyl ether acetate, sodium α-olefin sulfonate, and sodium lauryl sulfoacetate are said to be suitable.

However, there are restrictions on the addition ratio of these additives; for example, when sodium lauroyl methylalanine or sodium polyoxyethylene alkyl ether sulfate is blended, the viscosity will decrease if the concentration ratio to mono- or dialkyl phosphate ester salt is high. However, if the concentration ratio is low, separation from water will occur.

Therefore, the addition ratio must be determined, and even in the case of practical use, there has been no satisfactory high-viscosity cleaning composition.

Therefore, it has been desired to develop a high viscosity detergent composition that has stable quality over a long period of time and is less irritating to the skin.

[Means for Solving the Problems] As a result of intensive studies on cleaning compositions in order to solve the above problems, the present inventors have developed potassium salts of mono- or dialkyl phosphates and alkanols of mono- or dialkyl phosphates. Detergent compositions containing amine salts, mono- or dialkyl phosphates, sodium polyoxyethylene alkyl ether sulfates and neutral inorganic salts, and potassium salts of mono- or dialkyl phosphates, alkanolamine salts of mono- or dialkyl phosphates, mono- Alternatively, a detergent composition containing dialkyl phosphoric acid, sodium polyoxyethylene alkyl ether sulfate, a neutral inorganic salt, and chitosan becomes a highly viscous detergent composition, and the quality of the detergent composition is stable over a long period of time. The present invention was completed based on this discovery.

That is, the present invention is as shown below.

(1) A cleaning composition comprising a potassium salt of mono- or dialkyl phosphoric acid, an alkanolamine salt of mono- or dialkyl phosphoric acid, mono- or dialkyl phosphoric acid, sodium polyoxyethylene alkyl ether sulfate, and a neutral inorganic salt.

(2) A paste-like weak acid cleaning comprising a potassium salt of mono- or dialkyl phosphoric acid, an alkanolamine salt of mono- or dialkyl phosphoric acid, mono- or dialkyl phosphoric acid, sodium polyoxyethylene alkyl ether sulfate, and a neutral inorganic salt. agent composition.

(3) A cleaning composition comprising a potassium salt of mono- or dialkyl phosphoric acid, an alkanolamine salt of mono- or dialkyl phosphoric acid, mono- or dialkyl phosphoric acid, sodium polyoxyethylene alkyl ether sulfate, a neutral inorganic salt, and chitosan. .

(4) Composition ratio: 7 to 28 parts of mono- or dialkyl phosphoric acid potassium salt, 9-35 parts of mono- or dialkyl phosphoric acid alkanolamine salt, 1-3 parts of mono- or dialkyl phosphoric acid, polyoxyethylene alkyl ether sulfuric acid A cleaning agent comprising 2 to 10 parts of sodium, 1 to 4 parts of a neutral inorganic salt, and 0 to 5 parts of chitosan, to which a polyhydric alcohol and/or water is added to make a total of 100 parts. Composition.

Hereinafter, the cleaning compositions (1), (2), (3) and (4) are collectively referred to as the cleaning composition of the present invention.

The cleaning composition of the present invention can be obtained, for example, as follows.

Neutralize by adding alkanolamine aqueous solution and potassium hydroxide aqueous solution to mono- or dialkyl phosphoric acid, add sodium polyoxyethylene alkyl ether sulfate, and further neutral inorganic salt, and mix uniformly. By adding chitosan, a highly viscous weakly acidic detergent composition can be obtained.

More specifically, water and/or glycerin are added as needed to 10 to 35 parts of mono- or dialkyl phosphoric acid, and an aqueous solution equivalent to 1 to 5 parts of potassium hydroxide is added. Next, 2 to 12 parts of alkanolamine are added, and to this mixture 3 to 11 parts of sodium polyoxyethylene alkyl ether sulfate are added, followed by 1 part of a neutral inorganic salt.
Add ~4 parts.

At this time, add 1 to 3 parts by weight of chitosan as necessary.
It may be dispersed or dissolved.

The cleaning composition of the present invention can be obtained by further adding glycerin and/or water and mixing the mixture uniformly to make a total of 100 parts.

The mixing ratio of the potassium hydroxide aqueous solution and the alkanolamine aqueous solution used during neutralization is important in order to obtain a detergent composition with stable viscosity, and the ratio of potassium hydroxide is 35 to 65% of the total amount of alkali. It is appropriate that

A more preferable ratio is that potassium hydroxide accounts for 50 to 60% of the total amount of alkali.

The above total alkali amount refers to potassium hydroxide and alkanolamine, and if potassium hydroxide is 40% of the total alkali amount, alkanolamine is 60%.
It is.

Also, sodium polyoxyethylene alkyl ether sulfate is added to the mixture neutralized within the above range,
This is added for the purpose of preventing precipitation of crystals, and another example of achieving this purpose is sodium lauroylmethylalanine. In this case, the appropriate amount to add is about 3 to 16 parts in terms of coulometric ratio.

Next, specific examples of the neutral inorganic salt to be added include sodium chloride and sodium sulfate, with sodium chloride being the most suitable.

By performing the operations as described above and mixing uniformly, a highly viscous weakly acidic detergent composition is obtained.

Furthermore, at this time, chitosan may be added in order to react with excess mono- or dialkyl phosphoric acid to obtain a stable detergent composition. In this case, chitosan is 1 to 1 when the weight of mono- or dialkyl phosphoric acid is 100.
0F4 is appropriate.

In addition, the cleaning composition of the present invention can be used without any problem even if various additives used in boat fishing are added as shown below.

Higher alcohols such as polycations, cetanol, stearyl alcohol, lanolin alcohol, behenyl alcohol, and jojoba alcohol.

Polyhydric alcohols such as sorbitol and glycerin.

Sugars such as lactose and pectin.

Talc, kaolin, clay, titanium dioxide, silicic anhydride, zeolite, bentonite, dextrin, cellulose powder, sericite powder, alginate propylene glycol ester and amino acids.

Dyes and pigments as colorants.

As bactericidal preservatives, roseoxybenzoic acid esters, isopropyl methylphenol, etc.

Note that the term "weakly acidic" as used herein refers to a pH range of 5 to 7.

Specific examples of alkanolamines include triethanolamine, diisopropanolamine, etc.
Triethanolamine is most preferred.

The alkyl of the alkyl phosphoric acid suitably has 10 to 16 carbon atoms, and specific examples thereof include lauryl phosphoric acid and the like.

Next, the fact that the detergent composition of the present invention is a weakly acidic detergent with excellent stability and less irritation to the skin will be explained with reference to experimental examples.

Experimental example 1 <Preparation of sample> The samples used in the experiment were prepared as follows.

Note that samples (L) to (0) are cleaning compositions of the present invention.

・Preparation of sample (A) 20.0 parts of mono- or dialkyl phosphoric acid, 2 parts of glycerin
Weigh out 0.0 parts and an amount equivalent to 10 parts of triethanolamine in a beaker, stir while heating with hot water to 80-85°C, make it homogeneous, slowly cool it, and when the temperature reaches 50°C, 5.0 parts of sodium oxyethylene alkyl ether sulfate was added, and water was further added to bring the total to 100.0 parts, and the mixture was stirred uniformly until the temperature reached room temperature, and sample (A) was obtained.

・Preparation of sample (B) 20.0 parts of mono- or dialkyl phosphoric acid, 2 parts of glycerin
Weigh out an amount equivalent to 0.0 part and 10.0 parts of triethanolamine in a beaker, stir while heating with hot water to 80-85°C, make it homogeneous, and slowly cool it to 50°C. At that point, add 5.0 parts of sodium polyoxyethylene alkyl ether sulfate, add enough water to make a total of 100.0 parts, add 2.0 parts of sodium chloride, and continue stirring until the mixture reaches room temperature. was made uniform and designated as sample (B).

・Preparation of sample (C) 20.0 parts of mono- or dialkyl phosphoric acid, 2 parts of glycerin
Weigh out 0.0 part and an amount equivalent to 10.0 parts of triethanolamine in a beaker, stir while heating with hot water to 80 to 85°C, make it homogeneous, and slowly cool it down to 50°C. Add 5.0 parts of sodium polyoxyethylene alkyl ether sulfate and 1.0 part of chitosan, then add enough water to make the total 100.0 parts, add 2.0 parts of sodium chloride, and let the mixture reach room temperature. The mixture was stirred until the mixture was uniformly mixed, and the mixture was used as sample (C).

・Preparation of sample (D) 20.0 parts of mono- or dialkyl phosphoric acid, 2 parts of glycerin
Weigh 0.0 part and an amount equivalent to 4.0 parts of potassium hydroxide in a beaker, stir while heating with hot water to 80 to 85°C, make it homogeneous, and slowly cool it until it reaches 50°C. Sodium polyoxyethylene alkyl ether sulfate 5
．． Add 0 parts, then add enough water to make the total 100.0 parts, stir until the temperature reaches room temperature, keep stirring uniformly, and add the sample (
D).

・Preparation of sample (E) 20.0 parts of mono- or dialkyl phosphoric acid, 2 parts of glycerin
Weigh out 0.0 part and an amount equivalent to 4.0 parts of potassium hydroxide in a beaker, stir while heating with hot water to 80 to 85°C, make it homogeneous, and slowly cool it until it reaches 50°C. Sodium polyoxyethylene alkyl ether sulfate 5
．． 0 parts were added thereto, and water was added in an amount to bring the total to 100.0 parts, and 2.0 parts of sodium chloride was added thereto, and the mixture was stirred uniformly until the temperature reached room temperature, and sample (E) was obtained.

・Preparation of sample (F) 20.0 parts of mono- or dialkyl phosphoric acid, 2 parts of glycerin
Weigh out 0.0 part and an amount equivalent to 4.0 parts of potassium hydroxide in a beaker, stir while heating with hot water to 80 to 85°C, make it homogeneous, and slowly cool it until it reaches 50°C. Sodium polyoxyethylene alkyl ether sulfate 5
．． 0 parts and 1.0 parts of chitosan were added, and the whole was further reduced to 1.0 parts.
00.0 parts of water was added thereto, 2.0 parts of sodium chloride was added thereto, and the mixture was stirred until the temperature reached room temperature until the mixture was uniformly stirred to obtain a sample (F).

・Preparation of sample (G) 20.0 parts of mono- or dialkyl phosphoric acid, 2 parts of glycerin
Weigh out 0.0 part of potassium hydroxide, 1.2 parts of potassium hydroxide, and 6.0 parts of triethanolamine in a beaker, stir while heating with warm water to 80 to 85°C, make uniform, and then slowly cool. Add enough water to make the total 100.0 parts,
2.0 parts of sodium chloride was added to this, and the mixture was stirred uniformly until it reached room temperature, and this was used as sample (G).

・Preparation of sample (H') 20.0 parts of mono- or dialkyl phosphoric acid, 2 parts of glycerin
0.0 part, potassium hydroxide 12 parts, and triethanolamine 6.0 parts equivalent were weighed in a beaker, stirred while heating to 80-85°C with temperature-controlled water, and then cooled slowly after uniformity. Then, enough water was added to bring the total to 1000 parts, and 2.0 parts of sodium chloride was added thereto, and the mixture was stirred uniformly until the temperature reached room temperature, and sample (I4) was obtained.

・Preparation of sample (1) 20.0 parts of mono- or dialkyl phosphoric acid, 2 parts of glycerin
Weigh 040 parts of potassium hydroxide, 1.2 parts of potassium hydroxide, and an amount equivalent to 6.0 parts of triethanolamine in a beaker, stir while heating fA temperature controlled water to 80-85°C, make it uniform, and then slowly cool it. When the temperature reached 50° C., 1.0 part of chitosan was added, and water was further added to make the total amount 100.0 parts, and stirring was continued until the temperature reached room temperature, and the mixture was stirred uniformly to prepare sample (1).

・Preparation of sample (, ■) 20.0 parts of mono- or dialkyl phosphoric acid, 2 parts of glycerin
Weigh out 0.0 part of potassium hydroxide, 1.2 parts of potassium hydroxide, and 6.0 parts of triethanolamine in a beaker, stir while heating with warm water to 80 to 85°C, make uniform, and then slowly cool. Then, when the temperature reached 50°C, 5.0 parts of sodium polyoxyethylene alkyl ether sulfate was added, and water was further added to bring the total to 100.0 parts, and the mixture was stirred until the temperature reached room temperature. This was designated as sample (J).

・Preparation of sample (K) 20.0 parts of mono- or dialkyl phosphoric acid, 2 parts of glycerin
0.0 parts of potassium hydroxide and 6.0 parts of triethanolamine were weighed out in a beaker, and
Stir while heating with water to 80-85°C, make it homogeneous, then slowly cool, and when the temperature reaches 50'C, add 5.0 parts of sodium polyoxyethylene alkyl ether sulfate and 1.0 part of chitosan. Add enough water to bring the total to 100.0 parts, stir until it reaches room temperature, and continue to stir until the mixture reaches room temperature.
This was designated as sample (K).

- Preparation of sample (L) Using the cleaning composition shown in Example 1 described later as sample (L), it was prepared by the method shown in Example 1.

・Preparation of sample (M) 20.0 parts of mono- or dialkyl phosphoric acid, 2 parts of glycerin
Weigh out 0.0 part of potassium hydroxide, 1.2 parts of potassium hydroxide, and 6.0 parts of triethanolamine in a beaker, stir while heating with warm water to 80 to 85°C, make uniform, and then slowly cool. When the temperature reached 50°C, 5.0 parts of sodium polyoxyethylene alkyl ether sulfate and 1.0 part of chitosan were added, and enough water was added to bring the total IQo to 0 parts, and 2 parts of sodium chloride was added. 0 part was added, and the mixture was stirred uniformly until the temperature reached room temperature, and this was used as a sample (M).

- Preparation of sample (N) Fertilization The detergent composition shown in Example 2 was used as sample (N), and the method shown in Example 2 was used to make a fertilizer saw.

- Preparation of Sample (0) A sample (0) was prepared by the method shown in Example 3 using the cleaning composition shown in Example 3 below.

Experimental method and results> Samples (A) to (0) prepared as above were repeatedly cooled to heated at a temperature of 5 to 40°C, respectively.
It was stored in a colorless transparent bottle with a tightly stopper.

Table 1 shows a list of the compositions of the above samples and the results after 2 months.

(However, in Table 1, phosphoric acid is mono- or dialkyl phosphoric acid, G is glycerin, KOHi! is the corresponding potassium hydroxide aqueous solution, TEA is monoethanolamine, and K is polyoxyethylene alkyl ether royl). In addition, in sample (N), other than those shown in the table (1.0 part of seranol, 0.1 part of isopropylmethylphenol)
0.5 part of fragrance, 1.0 part of silicic anhydride and 1.0 part of titanium dioxide were added. 0.2 part was added. ) The symbol of the result indicates the following state of affairs.

×: A transparent layer is formed in the upper or lower layer, separation or precipitation of wax crystals is large, and the layer (very unstable).

O. Although the viscosity decreases slightly, it is stable and stable without separation.

◎There is little decrease in viscosity, it maintains a paste-like state, and there is no separation.
Good stability.

From the above results, it was confirmed that the cleaning compositions (L) and (M) of the present invention have excellent stability.

In addition, the cleansing composition of the present invention is weakly acidic, and the cleaning composition of the present invention is
Since it has little effect on H fluctuations, it is a highly safe composition even for people whose skin is susceptible to changes.

[Effect of the invention] The effects of the present invention are listed below.

■It has cleansing properties due to the mild degreasing power unique to mono- or dialkyl phosphates, produces rich foam, and leaves a nice light feeling after washing.

■pi (due to being weakly acidic, p on the skin) (hardly affected by fluctuations, less irritation to the skin, and less pH load on the skin).

■It has high viscosity, which not only improves usability, but also
Quality is stable over a long period of time.

■Good compatibility with other cleaning agent raw materials and additives,
It is possible to maintain a uniform condition.

Therefore, from the effects of the above invention, the cleaning composition of the present invention
It is useful as a cleansing composition for the face and body.

Next, the present invention will be explained in more detail with reference to Examples.
The present invention is not limited to this in any way.

Example! 20.0 parts of mono- or dilauryl phosphoric acid and 2 parts of glycerin
0.0 part of triethanolamine was added thereto, followed by 6.0 parts of triethanolamine, and the mixture was heated to 80 to 85°C. Further, an aqueous solution equivalent to 1.2 parts of potassium hydroxide was added, and the mixture was sealed uniformly. Next, after adding an amount equivalent to 5.0 parts of sodium polyoxyethylene alkyl ether sulfate, water was added to make the total 100.0 parts, and the mixture was cooled to room temperature while stirring, followed by 1.5 parts of sodium chloride. By adding 0.2 parts of methyl paraoxybenzoate as a preservative, a cleaning composition having a pi-1 of 5.93 in a 10% aqueous solution was obtained.

Example 2 15.0 parts of mono- or dilauryl phosphoric acid and 1 part of seranol
．． 0 parts, then 3.0 parts of triethanolamine were added, the mixture was heated to 80 to 85°C, and an aqueous solution equivalent to 1.2 parts of potassium hydroxide was added to make it homogeneous. Next, add an amount equivalent to 5.0 parts of sodium lauroylmethylalanine, and then add enough water to make a total of 100.0 parts.
The mixture was cooled to room temperature while stirring. Next, 1.5 parts of sodium chloride was added, 0.2 part of isopropyl methylphenol as a preservative, and 0.5 part of fragrance were added, stirred until uniform, and 1.0 part of silicic anhydride and 1.0 part of titanium dioxide were added.
p of a 10% aqueous solution by uniformly dispersing the
A cleaning composition having H of 5.96 was obtained.

Example 3 30.0 parts of mono- or dilauryl phosphoric acid and 2 parts of glycerin
5.0 parts of triethanolamine were added thereto, followed by 6.0 parts of triethanolamine, the mixture was heated to 80 to 85°C, and an aqueous solution equivalent to 3.4 parts of potassium hydroxide was added to make it homogeneous. Next, after adding an amount equivalent to 5.0 parts of sodium polyoxyethylene alkyl ether sulfate, water was added to make a total of 100.0 parts, and the mixture was cooled to room temperature while stirring, followed by 2.5 parts of sodium chloride. Add 2 parts of chitosan and 2 parts of chitosan.
．． A cleaning composition having a 10% aqueous solution having a pH of 6.13 was obtained by adding 0.2 parts of methyl benozoate as a preservative.

Claims (4)

[Claims] (1) A cleaning composition comprising a potassium salt of mono- or dialkyl phosphoric acid, an alkanolamine salt of mono- or dialkyl phosphoric acid, mono- or dialkyl phosphoric acid, sodium polyoxyethylene alkyl ether sulfate, and a neutral inorganic salt. (2) A paste-like weak acid cleaning comprising a potassium salt of mono- or dialkyl phosphoric acid, an alkanolamine salt of mono- or dialkyl phosphoric acid, mono- or dialkyl phosphoric acid, sodium polyoxyethylene alkyl ether sulfate, and a neutral inorganic salt. agent composition. (3) A cleaning composition comprising a potassium salt of mono- or dialkyl phosphoric acid, an alkanolamine salt of mono- or dialkyl phosphoric acid, mono- or dialkyl phosphoric acid, sodium polyoxyethylene alkyl ether sulfate, a neutral inorganic salt, and chitosan. . (4) Composition ratio: 7 to 28 parts of mono- or dialkyl phosphoric acid potassium salt, 9-35 parts of mono- or dialkyl phosphoric acid alkanolamine salt, 1-3 parts of mono- or dialkyl phosphoric acid, polyoxyethylene alkyl ether sulfuric acid 2 to 10 parts of sodium, 1 to 4 parts of neutral inorganic salt, and 0 to 5 parts of chitosan, and polyhydric alcohol and/or
Alternatively, a cleaning composition characterized in that the total amount is 100 parts by adding water.