JPS584960B2 - cleaning composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cleaning composition among synthetic detergents, which is used particularly for cleaning vegetables, fruits, tableware, etc., and moreover, it has more cleaning power than conventional commercially available synthetic detergents. This product is a strong, highly stable, low-pollution detergent composition that causes little skin damage. It has sufficient detergency even without containing it.

The main component of the present invention is an alkali metal salt or alkaline earth metal salt of N-β-hydroxyalkyl°N-hydroxyethyl β-alanine having the following general formula (1).

(wherein n21-2, M, alkali metal or alkaline earth metal) In the case of n21, the main component itself has low detergency, but as a subcomponent. By mixing appropriate amounts of anionic surfactant detergents, the cleaning effects of both can be significantly increased.

Detergents containing anionic surfactants are currently commercially available as subcomponents to be added to the above main components, but detergents containing anionic surfactants each have fatal flaws, and even if they have cleaning power, It foams strongly and is becoming a major problem as it causes skin damage and environmental pollution.

On the other hand, by mixing the amino acid-based amphoteric surfactant, which is the main component of the present invention, with the above-mentioned subcomponents, the various drawbacks of the conventional synthetic detergents can be almost completely eliminated.

The present inventors believe that although the main component of the present invention has low cleaning power by itself, by mixing and using an anionic surfactant detergent as various subcomponents, the detergent is superior to commercially available excellent detergents. In general, amphoteric surfactants have different cleaning effects depending on the pH level, either alkaline or acidic, but the cleaning agent of the present invention has cleaning effects over a fairly wide range of pH. They found that the effect remained unchanged.

In addition, it has been confirmed that an aqueous solution free from precipitation can be obtained by adjusting the pH and temperature regarding mutual solubility when mixed with each side component.

Examples of the anionic surfactant as a subcomponent added to the main component of the present invention include (a) alkyl ether sulfate;

This is a synthetic detergent that was put into practical use before the development of ABS, which will be described later, and is suitable as a subcomponent of the present invention.

Due to the superior cleaning power of ABS, ABS has become popular and is now mainly used as a synthetic hair detergent (shampoo), but like ABS, it has skin permeability, so it is used as a single item as dish detergent, etc. Not done.

(b) Alkaline salts of higher fatty acids, so-called soaps.

Soap does not cause skin damage and is highly biodegradable even in wastewater, so it has little negative impact on fish in water bodies, but it has the disadvantage that its cleaning action as a cleaning agent is inferior to commercially available synthetic agents.

When soap is added as a subcomponent of the present invention, it is a suitable cleaning composition because it does not reduce the cleaning effect and does not cause environmental pollution.

(1) ABS and LASl are commonly used as anionic surfactants.
It is an alkynebenzene sulfonate, and C1□~C14
A side-chain type having an alkyl group is called ABS, and a straight-chain type is called LAS.

ABS has very poor biodegradability and is hardly used at present due to environmental pollution. LA, which has better biodegradability than ABS,
S is the main component of commercially available products.

LAS is also not completely biodegradable, and residual LAS
is highly toxic to fish.

Furthermore, it is necessary to add sodium tripolyphosphate to detergents containing LAS as a main component in order to increase the cleaning effect.

It is a well-known fact that sodium tripolyphosphate promotes eutrophication of water bodies, and there has been a long-awaited desire for sodium tripolyphosphate-free products.

When LAS or ABS is added as a subcomponent to the main component of the present invention, it exhibits a cleaning effect equal to or greater than that of ABS or LAS with sodium tripolyphosphate added, without adding sodium tripolyphosphate, and significantly reduces environmental pollution of water bodies. It can be reduced.

2) High alcohol detergent This agent also has skin penetration, although it is slightly less than ABS.
It has an LD50 (half-lethal dose) similar to ABS, and requires the use of sodium tripolyphosphate.

When used as a subcomponent of the present invention, the higher alcohol detergent has CW<T which improves the cleaning effect like LAS, and also significantly reduces environmental pollution (e) Paraffinic sulfate (C12-Cl8) α-olefin type Sulfate (C15-C
20) Polyoxymethylene alkyl ether sulfonate (C12-Cl8) [CH3''CH2CH2...CH20(CH2
CH20)n]505M These are not used alone, and are either higher alcohol sulfates or ABS, LA
It is used in combination with S and the like, but as mentioned above, there are various problems when used in combination with these conventional anionic surfactants.

When used as a subcomponent in the present invention, it provides a cleaning composition that is effective in increasing cleaning effectiveness and reducing environmental pollution.

By adding the above-mentioned five types of anionic surfactant detergents as subcomponents to the present invention, the advantages of each of the main and subcomponents are promoted as a synergistic effect, and the drawbacks of the added subcomponents are significantly reduced. In view of the current situation where synthetic detergents have become a major social problem, the present invention has great significance.

Furthermore, the cleaning composition of the present invention is characterized in that it has a better cleaning effect on hard water than the above-mentioned commercially available anionic surfactants.

Furthermore, the present invention can contain appropriate amounts of various additives such as CMC, glycerin, citric acid, ethanol, fragrance, and water, as in ordinary detergents, and in addition to the above-mentioned subcomponents, lauric acid gel By incorporating tanolamide, the physical properties of the cleaning composition of the present invention can be improved.

Next, the present invention will be explained in detail with reference to Examples.

In all of the following examples, as the main component, The cleaning effectiveness was compared in a dishwashing test.

That is, a detergent solution is dropped into a washing pole from a funnel provided at a height of 70 cm to form bubbles.

A 25 cm diameter dish coated with Crisf stain is washed in the washing solution and the washing is repeated until the bubbles disappear.

The cleaning solution concentration is 0.5%.

Crisf stain was melted at 60°C and cooled to 25°C, and 251 coats were applied to each plate.

In addition, 0.01% of the dye oil red was mixed in the cloth to make it easier to see the removal of dirt (see Figure 1). Three people cleaned the cloth, and the cleaning was done by one person after every 5 sheets.

For the foaming test, take 0.5% cleaning solution in a bottle and apply 1 amplitude of 10c.
m, height of foam after shaking 60 times/min (cm).

Example I For cleaning compositions of A,,A2 and alkyl ether sulfate: Bl+(Cto)C10H210(C2H4)O8O3
NaB2t (CI2) CI2H250 (C2H4) 08
03NaBs, (CI?)Ct7Hs50 (C2H4)
The mixed concentration of O8O3NaA and B is 20% in the cleaning composition.
It is.

The results are shown in Table 1.

From the results shown in Table 1, among the various composition ratios of A and B, the combination of A:B of 4:1 to 1:3 had particularly good cleaning effects.

In addition, in BltB2+B3, CH2(
When m=1), almost the same results were obtained in the number of washed sheets and the foaming test as shown in Table 1.

Next, a number of experiments were conducted on the skin irritation properties of the cleansing composition of the present invention using compositions having the following proportions, one example of which is shown in Table 2 below.

Test conditions: 0.5% cleaning solution on phosphorus cloth on the back of the human body, 0
．． 5m! The back of the human body is sensitive to the drug, and when it was applied manually, there was no fever in 50 cases.

Biodegradable, the cleaning composition of the present invention was decomposed to 90% within 7 days, and its toxicity to fish is significantly lower than that of commercially available products.

Furthermore, as mentioned above, the cleaning composition of the present invention does not contain sodium tripolyphosphate, and there is no environmental pollution caused by this.

Example 2 Alkaline salts of higher fatty acids (CnH2n+1cooM), so-called soaps, are mixed with various numbers of C as subcomponents, but the soap used in the present invention contains a large amount of sodium laurate as an alkaline salt of higher fatty acids. However, it also contains other ingredients such as sodium myristate, sodium palmitate, and sodium stearate.The ingredients of the soap are now represented by C, and the cleaning effect when combined with A1 and A2 was verified in the third test. Shown in the table.

From the results in Table 3, A is obtained when components A and C are mixed.

A cleaning effect superior to that of each C alone was obtained.

In particular, it has been found that A:C2 3:1 to 1:4 is most effective when used on dogs.

Example 3 When ABS and LAS are used as subcomponents, DI C
[2H25C6H4sosNa (ABS)D2
C14H2gC6H4C14H2 (ABS) D3 Cl
2H2,C6H4S03Na (LAS)D4 C
1+H2oC6H+5OsNa (LAS) The cleaning effect and foaming when these are combined with A, A2 are shown in Table 4, and the results of the fabric damage test are shown in Tables 5 and 6.

From Table 4, it was found that the case of A:D=3:1 to 1:2 was most effective for dogs.

(Here, A represents A1 or A2, and D represents DItD2yD3 or D4.

) Example 4 When paraffinic sulfonate (SAS) is used as a subcomponent, C...1...80·a (E·) is used as SAS.

C17H35SO3Na(F2) The results when El or F2 is used in combination with AI+A2 are shown in the seventh column.
From the table, the ratio of A:E = 3:1 to 1:3 was most suitable.

The results of the skin test are shown in Table 8.

The results of the skin test showed no abnormalities, with only two patients experiencing severe itching.

Example 5 When using olefinic sulfonate as a subcomponent C,5H2,5OsNaF.

C17H33SO3Na F2 A1. Table 9 shows the cleaning effects and foaming test results when Fl or F2 was used in combination with A2.

As is clear from Table 9, the most desirable combination ratio of the main component (AI or A2) and the subcomponent (F or F2) The results of the skin test were almost the same as those in Table 8.

Example 6 When polyoxyethylene alkyl ether sulfate was used as a subcomponent (AES) In this example, the following GI and G2 were used.

C6H1-gO(CH2CH20)8SO3Na GI
CoHl, 0(CH2CH20)9SO3Na G2A
The first test result is when G,,G2 is added to H2A2.
It is shown in Table 0.

From Table 10, the desirable combination of A:G is 3:1 to 1:2.
Met.

The results of the skin test were almost the same as those in Table 8.

The cleaning effects of the cleaning composition of the present invention and a commercially available product are shown in FIG.

Figure 1 shows commercially available products A, B, and C prepared by the method described above.

Four types of detergent D and two types of products E and F of the present invention were selected, and as described above, 0.01% of the dye Oil Red was mixed in Krinoko and a dishwashing test was conducted to compare the degree of shedding of the dye. The results show the cleaning status of the dishes; (1) is the status of the sample before cleaning; A, B, C, and D;

E and F are diagrams showing the cleaning status of commercially available products A, B, C, and D and cleaning compositions E and F of the present invention, respectively.

As is clear from the drawings, the cleaning results are as follows: E of the present invention.

When F was used, the degree of shedding of the oil red dye was the greatest, indicating that the cleaning was the best.

Example 7 When higher alcohol sulfate is used as a subcomponent C15H31O8O3NaH.

C17H3,0803Na H2AH,A2
Table 11 shows the test results when HI and H2 were added to.

The test results in Tables 1, 3, 4, 7, 9, 10, and 11 show that when using the product of the present invention, the cleaning effect and foaming test are equivalent to those of ordinary commercially available cleaning agents. Not only does it show that it is more effective than that,
Furthermore, as shown in Tables 2, 5, 6, and 8, the results of human tests show that the product of the present invention provides an excellent cleansing composition with low pollution, since it causes significantly less skin damage.

[Brief explanation of drawings]

Figure 1 shows the dye oil red 0.0 of the commercially available product and the product of the present invention.
FIG. 3 is a diagram showing a dishwashing test situation in which the cleaning effect was compared depending on the degree of dye shedding by mixing 1% of the dye into a clitoris. A, B, C, D, when the degree of coloring and shedding of dye oil red using a commercially available product is small and the cleaning effect is not sufficient. E, F, degree of coloring loss of dye oil red using the present invention is A. If it is a dog from B, C, or D. 1: Coloring status of the sample with dye oil red before cleaning.

Claims (1)

[Scope of Claims] 1. A cleaning composition comprising as a product an alkali metal salt or alkaline earth metal salt of a β-alanine derivative having the following general formula (1) and an anionic surfactant. where n, 1 to 2 M, alkali metal or alkaline earth metal 2 Alkyl ether sulfate (CnH2n+10) (CnH2m) O803M as anionic surfactant
The cleaning composition according to claim 1, wherein n=5 to 18 m=1.2 M, an alkali metal or an alkaline earth metal (the same applies hereinafter). 3. The cleaning composition according to claim 1, wherein an alkali salt or alkaline earth metal salt of a higher fatty acid having the general formula % is used as the anionic surfactant. 4. The cleaning composition according to claim 1, wherein an alkali salt or alkaline earth metal salt of an alkylbenzenesulfonic acid having the general formula % is used as the anionic surfactant. 5. The cleaning composition according to claim 1, wherein a paraffinic sulfonate having the general formula % is used as the anionic activator. 6. The cleaning composition according to claim 1, wherein an olefinic sulfonate having the general formula % is used as the anionic surfactant. 7. The cleaning composition according to claim 1, wherein a higher alcohol sulfate, CnH2n+tO8OsM, where n=12-18, is used as the anionic surfactant.