KR20000009652A - Liquid dishwashing-detergent composition - Google Patents

Abstract

PURPOSE: A liquid dishwashing-detergent composition is provided which is advantageous for the economical aspect and cleaning power, and reduces skin irritation in comparison with conventional amphoteric detergents or alkylamineoxide. CONSTITUTION: The composition contains: at least one anionic surfactant selected from the group consisting alkylether sulfate, alkylsulfate, akylbezenesulfonate, alphaolefinsulfonate and alkanesulfonate; at least one nonionic surfactant selected from the group consisting of alkylglucoside, fatty acid alkanolamide and polyoxyethylene alkylether; and 0.1-30 wt.% of alkylamidoprpylamineoxide represented by formula I, wherein; R1 is C8-C18 alkyl; R2 and R3 are, independently, C1-C5 alkyl or hydroxyalkyl.

Description

Liquid detergent composition for washing dishes

[Industrial use]

The present invention relates to a dishwashing liquid detergent composition, and more particularly, to a dishwashing liquid detergent composition which is advantageous in terms of washing power and economical efficiency, and has low skin irritation.

[Prior art]

In general, detergent compositions useful for cleaning purposes include a variety of surfactants, additional cleaning components specifically tailored to the type of cleaning desired, and other ingredients added for processing or aesthetic purposes. There are various kinds of liquid detergent compositions for cleaning dishware, and it is already known that alkylpolyglycoside among surfactants, which are the main ingredients of the detergent, improves the cleaning properties and other physical properties through combination with at least one other surfactant. It is.

In addition, the use of sulfated or sulfonated anionic surfactants as detergent compositions among various surfactants is already known and commercialized and widely applied, which offsets the skin adsorption properties of these anionic surfactants and reduces skin irritation. It is also known that nonionic surfactants and amphoteric surfactants are used to mitigate and improve cleaning and foaming properties.

The application of dishwashing liquid detergents using alkylamine oxides and various amphoteric surfactants in nonionic surfactants is known from many patents. As some examples thereof, the application of alkylamine oxide, which is a nonionic surfactant, is known from US Pat. Nos. 282,976 (P & G), 371,696 (P & G), and Japanese Patent No. 91-81014 (Lion) and the like. Patents applying alkylamidopropyl betaine as an activator include European Patent No. 92-200679 (Berol), Japanese Patent No. 90-212601 (Unilever), 94-502198 (P & G), and the like. Patents using the rock facility fovetain include Japanese Patent Nos. 89-292098 (KaO), 89-297502 (KaO), and Korean Patent Application No. 96-61478 (LG Chemical). Japanese Patent Nos. 89-6424 (Mitsubishi), 93-214366 (Natural Chemicals) and the like are known.

There are many known liquid detergent compositions used to clean dishes, and many products are commercially available. These compositions may cause skin irritation by direct contact with the skin of the hand, although there are some differences depending on the product components. Denitrification of the nitrogenous powder from the skin provides a cause for rough hands. Accordingly, a method of increasing skin protection and moisturizing effects by using a combination of mild surfactants and additives has been proposed.

As such, the dishwashing liquid cleaner must have excellent cleaning power, and appropriate bubble amount, skin hypoallergenicity and economical efficiency are essential, and many studies have been conducted to prepare a dishwashing liquid detergent for satisfying all of these purposes. There was a branch.

The present invention is advantageous in terms of cleaning power and economical efficiency compared to conventional amphoteric surfactants or alkylamine oxides, and the dishwashing liquid detergent composition exhibiting excellent synergy such as reducing skin irritation index. The purpose is to provide.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a dishwashing liquid detergent composition comprising an anionic surfactant, a nonionic surfactant and an alkylamidopropylamine oxide of 0.1 to 30% by weight based on the total composition. to provide.

[Formula 1]

Wherein R ₁ is an alkyl group of C _8-18 , and R ₂ and R ₃ are each independently an alkyl or hydroxyalkyl group of C _1-5 .

Hereinafter, the present invention will be described in detail.

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a conventional amphoteric surfactant or alkylamine by containing an alkylamidopropylamine oxide as a nonionic surfactant in a dishwashing liquid detergent composition using at least one anionic surfactant and a nonionic surfactant. The present invention relates to a liquid detergent for dishwashing, which is advantageous in terms of cleaning power and economical efficiency compared to oxide, and has a synergistic effect of reducing skin irritation index.

As such, the liquid detergent composition exhibits an excellent cleaning effect when the non-ionic surfactant alkylamidopropylamine oxide is used in a constant ratio in a liquid detergent using at least one anionic surfactant and a nonionic surfactant. Also significantly reduces.

In the liquid detergent composition of the present invention, as the anionic surfactant, at least one compound selected from the group consisting of alkyl ether sulfate, alkyl sulfate, alkylbenzenesulfonate, alphaolefin sulfonate and alkanesulfonate is used, wherein the anionic surfactant composition Medium olefin sulfonate is less expensive than alkyl ether sulfate or alkyl sulfate, and has an advantage of superior biodegradability than alkyl benzene sulfonate, so it may be applied within about 30% of the total anionic surfactant.

In addition, in the composition of the present invention, at least one compound selected from the group consisting of alkyl glucoside, fatty acid alkanolamide and polyoxyethylene alkyl ether is used as the nonionic surfactant, and such nonionic surfactant is used as an auxiliary surfactant. However, nonionic surfactants may be used as a main ingredient to lower the irritation index on the skin.

In addition, the composition of the present invention essentially comprises an alkylamidopropylamine oxide of the formula (1), the amount used is 0.1-30% by weight, preferably 1-15% by weight of the total composition. If the amount of the alkylamidopropylamine oxide is less than 0.1% by weight, the synergistic effect of the composition may not be expected, and if it exceeds 30% by weight, it is difficult to maintain a detergent formulation having fluidity, and such alkylamidopropylamine Oxide is more expensive than anionic surfactants or other nonionic surfactants, so it is preferable to use the oxide at 15% by weight or less unless it is an advanced product that emphasizes the effect.

[Formula 1]

Wherein R ₁ is an alkyl group of C _8-18 , preferably an alkyl group of C _12-14 , and R ₂ and R ₃ are each independently C _1-5 alkyl or hydroxyalkyl groups, preferably The methyl group of C ₁ is used.

When the liquid detergent composition of the present invention contains an anionic surfactant as a main component, a ratio of alkylamidopropylamine oxide and an anionic surfactant is 1:30 to 1: 2, and a nonionic surfactant is a main component. The ratio of alkylamidopropylamine oxide and nonionic surfactant is used in 1: 10-3: 1.

In addition, the liquid detergent composition of the present invention may be used in combination with a variety of amphoteric surfactants, such as nonionic surfactants such as alkylamine oxide of the formula (2) or alkyl amidopropyl betaine of the formula (3), The use of alkylaminopropylamine oxide is superior in effect of cleaning power and the like to alkylamine oxide, and is more economically superior to alkylamidopropyl betaine.

[Formula 2]

[Formula 3]

Wherein R is an alkyl group of C _8-16 .

In the liquid detergent composition of the present invention, a solubilizer may be used in order to maintain a transparent appearance and low temperature stability. Such solubilizers include ethanol, ethylene glycol, propylene glycol, toluenesulfonate, xylenesulfonate, cumenesulfonate, and the like. It is used properly. In addition, as other carrier components that are typically used, fungicides such as pH adjusters, dyes, triclosan, fragrances, and the like can be used.

EXAMPLE

The following presents preferred examples and comparative examples to aid in understanding the invention. However, the following examples are merely provided to more easily understand the present invention, and the present invention is not limited to the following examples.

Example 1-10

Each component shown in Table 1 below was added in an amount shown in Table 1 and mixed to prepare a liquid detergent composition.

* Alkylaminopropylamine oxide: Surfactant which has a _C12-14 alkyl group and a dimethyl group.

Example 11-13

Each component shown in Table 2 below was added and mixed in an amount shown in Table 2 to prepare a liquid detergent composition mainly containing an anionic surfactant.

Comparative Example 1-7

Each component shown in Table 2 below was added and mixed in an amount shown in Table 2 to prepare a liquid detergent composition mainly containing an anionic surfactant.

* Alkylaminopropylamine oxide: Surfactant which has a _C12-14 alkyl group and a dimethyl group.

Example 14-16

Each component shown in Table 3 below was added in an amount shown in Table 3 and mixed to prepare a liquid detergent composition containing a nonionic surfactant as a main component.

Comparative Example 8-14

Each component shown in Table 3 below was added in an amount shown in Table 3 and mixed to prepare a liquid detergent composition containing a nonionic surfactant as a main component.

* Alkylaminopropylamine oxide: Surfactant which has a _C12-14 alkyl group and a dimethyl group.

Using the liquid detergent composition prepared in the above Examples and Comparative Examples was experimented according to the following method to evaluate the properties of the composition.

(1) cleaning power evaluation

As shown in Table 4 below, the main ingredient was made of tallow and soybean oil, and uniformly coated on glass specimens (2.5 cm × 7.5 cm), followed by a stirring mixed cleaning tester (TERG- O-TOMETER, UNITED STATES TESTING CO., INC) was used to wash at 100 rpm for 3 minutes, and the residual contamination was dissolved in chloroform, and the absorbance was measured using an ultraviolet absorbance spectrometer.

Pollutant Furtherance Uji: 1: 1 mixture of soybean oil 20 g Monooleate 0.25g chloroform 60 ml Oil red (Sudan III) CI-26100 0.1g

2. Skin irritation evaluation (alveolar test)

A sample of 2% detergent solution was applied to the inside of the test subject's upper arm and then removed after 48 hours, and erythema after 4 hours was visually judged according to the criteria in Table 5, and the plate for 15 subjects was tested. The static mean was taken as the stimulus score.

Visual judgment Judgment score No erythema 0 Weak erythema, red spot form One Median, irregular erythema 2 Strong erythema 3 Red, brown, blister, etc. 4

The liquid detergent compositions prepared in Examples and Comparative Examples were tested according to the above method, and the results are shown in Tables 6, 7, and 8, respectively.

Example One 2 3 4 5 6 7 8 9 10 Cleaning power (% decontamination) 92 96 95 92 90 94 94 96 88 80 Skin irritation 0.37 0.33 0.33 0.32 0.29 1.29 1.33 0.32 0.12 0.08

Example 11 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Example 12 Comparative Example 5 Comparative Example 6 Example 13 Comparative Example 7 Cleaning power (% decontamination) 94 94 88 90 90 92 88 90 90 86 Skin irritation 0.31 0.34 0.38 0.35 0.36 0.36 0.48 2.46 1.28 1.49

Example 14 Comparative Example 8 Comparative Example 9 Comparative Example 10 Comparative Example 11 Example 15 Comparative Example 12 Comparative Example 13 Example 16 Comparative Example 14 Cleaning power (% decontamination) 90 90 82 84 84 86 80 88 88 84 Skin irritation 0.22 0.27 0.30 0.30 0.31 0.52 0.58 2.10 1.05 1.22

As shown in Table 6, the liquid detergent composition containing the alkyl amido amine oxide shows a high cleaning power of 90% or more, or it can be seen that the skin irritation is remarkably low.

The results of Example 11 and Comparative Examples 1-4 of Table 7 for the liquid detergent composition containing an anionic surfactant as a main component are similar to or better than those of other nonionic amine oxides. It also shows that it shows higher cleansing power and lower skin irritation than the result of using the amphoteric surfactant alkylamidopropyl betaine, hydroxy sulfobetaine or alkyl betaine.

In addition, the results of Example 13 and Comparative Example 6-7 of Table 7 is the alkylamidoamine oxide to alleviate the irritability of the alkylbenzenesulfonate component, the effect is the alkyl amphoteric surfactant commonly used in liquid cleaners Better than amidopropylbetaine.

From the results of Table 8 for liquid detergent compositions containing nonionic surfactants as the main component, alkylamidoamine oxides exhibited similar or better performance than nonionic amine oxides, and are used as amphoteric surfactants, alkylamidopropylbane and hydride. It can be seen that the results show better results than oxysulfo-betaine and alkyl betaine. Especially, the alkylamidoamine oxide mitigates the irritancy of the alkylbenzenesulfonate component, and the effect is the amphoteric interface commonly used in liquid detergents. It is better than alkylamidopropyl betaine which is an activator.

The dishwashing liquid detergent composition of the present invention is advantageous in terms of cleaning power and economical efficiency by using alkyl amidopropylamine oxide, and reduces skin irritation index by using an amphoteric surfactant or alkylamine oxide. It shows an excellent synergistic effect, for example.

Claims (5)

Anionic surfactants; Nonionic surfactants; And 0.1-30% by weight of alkylamidopropylamine oxide of Formula 1, based on the total composition; A dishwashing liquid detergent composition comprising. [Formula 1] Wherein R ₁ is an alkyl group of C _8-18 , and R ₂ and R ₃ are each independently an alkyl or hydroxyalkyl group of C _1-5 . The dishwashing liquid detergent composition according to claim 1, wherein the ratio of the alkylamidopropylamine oxide and the anionic surfactant is from 1:30 to 1: 2 when the liquid detergent composition has an anionic surfactant as a main component. The dishwashing liquid detergent composition according to claim 1, wherein the ratio of alkylamidopropylamine oxide and other nonionic surfactants is 1:10 to 3: 1 when the liquid detergent composition is based on a nonionic surfactant. . The dishwashing liquid detergent composition according to claim 1, wherein the anionic surfactant is at least one compound selected from the group consisting of alkyl ether sulfate, alkyl sulfate, alkylbenzene sulfonate, alpha olefin sulfonate and alkanesulfonate. The dishwashing liquid detergent composition according to claim 1, wherein the nonionic surfactant is at least one compound selected from the group consisting of alkylglucoside, fatty acid alkanolamide and polyoxyethylene alkyl ether.