JPH0363600B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a liquid detergent composition, and more particularly, all of the main active agents are nonionic active agents.
This invention relates to a liquid cleaning composition for kitchen use and the like. Traditionally, liquid cleaning agents for kitchen use include LAS,
Generally, the main ingredient was an anionic activator such as SAS, higher alcohol sulfate, or higher alcohol ether sulfate. However, although these anionic active agents vary in size, they all have a protein denaturing effect and are therefore likely to cause skin damage to users. For this reason, it is recommended to dilute the solution to the standard concentration and use rubber gloves, but in reality, the majority of cases are in which the undiluted solution is applied directly to a sponge with bare hands.
On the other hand, kitchen detergents containing nonionic active agents such as sucrose fatty acid esters and sorbitan fatty acid ester ethoxylates as main ingredients are known as detergents that are less likely to cause rough hands. However, these have poor performance and
In particular, it is difficult to clean dishes with a lot of oil stains, and it can only be used for cleaning milk bottles, vegetables, etc. In addition, kitchen detergents made from soaps such as coconut oil fatty acids alone and soaps in which active agents such as alkylolamides and sucrose fatty acid esters are added as calcium soap dispersants are also known. Sometimes there are problems such as re-adhesion of dirt, and it is difficult to say that the performance is completely satisfactory. Also, due to the nature of soap, it has to be alkaline in pH, which causes the problem of rough hands. For the above reasons, the present inventors have conducted intensive studies to develop a cleaning agent that does not use sulfate or sulfonate type anionic activators that have protein denaturing effects, and that has the same performance as those that use them. Surprisingly, the inventors have discovered that the desired objective can be achieved by blending two amide type nonionic activators and amine oxide in a specific ratio, and have accomplished the present invention. The liquid detergent composition of the present invention contains the following (a) to (c) as essential components. (a) Amide ethoxylate 5 represented by formula (1)
~20% by weight (In formula (1), R ₁ has 9 to 17 carbon atoms, preferably 9 to 13 carbon atoms.
straight chain alkyl group, n is 4 to 20 on average, preferably 8 to 12) (b) an alkylolamide represented by formula (2) 3 to 10
weight% (In formula (2), R ₂ has 5 to 17 carbon atoms, preferably 9 to 13 carbon atoms.
(straight chain alkyl group) (c) tertiary amine oxide represented by formula (3) 0.5
~5% by weight (In formula (3), R ₃ has 6 to 18 carbon atoms, preferably 10 to 14 carbon atoms.
(R ₄ and R ₅ are methyl, ethyl or hydroxyethyl groups, preferably methyl groups) Each of the above components is known per se and can be obtained by various methods. The alkyl groups represented by R ₁ , R ₂ , and R ₃ in the general formula of each component above are preferably alkyl groups derived from fatty acids derived from coconut oil or palm kernel oil. The composition of the present invention can be obtained by adding and mixing the above-mentioned essential ingredients to water, but in addition to the above-mentioned essential ingredients, it may also contain other substances that are normally added to liquid detergents within the scope of the purpose of the present invention. For example, it may contain solvents such as ethanol and propylene glycol, urea, etc. to improve liquid stability, inorganic salts such as mirabilite and common salt, and various disinfectants to adjust viscosity. In addition, it is possible to contain compounds with surfactant ability as other components as long as it does not deviate from the purpose of the present invention, but it is better to limit the amount of sulfate-based or sulfonate-based compounds to 3% by weight at most. good. Furthermore, since all essential components of the cleaning composition of the present invention are nonionic active agents, it is not limited by pH, but it is preferably weakly acidic or neutral in view of irritation to the skin and eyes. EXAMPLES Hereinafter, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited to these Examples. Note that parts in the examples are based on weight. Examples Various cleaning powers, foaming, and roughness on hands of various cleaning agents having the formulation shown in Table 1 were evaluated by the methods shown below. The results are shown in Table 1. <Evaluation method> Γ cleaning power (Ciel modified method) 100 parts of margarine and 4 parts of oleic acid as dirt
104 parts of wheat flour, 21 cm in diameter.
3g of paint was applied to each plate in a circle with a diameter of 15 cm and left overnight to be washed. The washing solution was prepared by dissolving 1.5 ml of detergent in 1 part of water, placing it in a washing tub, and dropping another 1 part of water from 45 cm above the tub to foam the washing solution. Place the dish in this washing liquid and scrub it 10 times on each side with a scrubbing brush until the foam in the washing liquid disappears due to dirt and the liquid level reaches 50.
The evaluation was based on the number of dishes washed by %.
Note that tap water containing ₃ ppm of 58CaCO was used, and the temperature was adjusted to 25°C. Γ Cleaning Power (Sponge Washing Method) Put 15g of margarine in a Chinese pot, heat until it turns a cutlet color, then cool, then add 100ml of water. Pour the specified amount of cleaning agent into this, rub it 10 times on each side with a cleaning sponge, and check the degree of foam and oil removal.
Observe the emulsification state of the oil. The cleaning power of the cleaning agent was evaluated based on the amount of cleaning agent required to achieve a satisfactory condition. Γ Recontamination 20 dishes with a diameter of 21 cm and 3 g of mayonnaise spread in a circle with a diameter of 15 cm were used as the items to be washed.
5g of cleaning agent in a cleaning sponge measuring cm x 7cm x 3cm
I washed it with something attached to it. After washing, the dishes were soaked in a washing tub filled with water, and after 3 minutes, they were rinsed under running tap water and observed for oil adhesion after drying. Things+,
++ for something a little more, ++ for something worse
+ Γ Rough Hand Test The wrists were soaked in a 10% detergent solution at 40°C for 30 minutes twice a day for 2 days, and on the morning of the 3rd day, the condition was visually judged according to the following criteria. ΓNo abnormality is observed − ΓSlight roughness of hands is observed ＋ΓRoughness of hands is observed ++

【table】

Claims (1)

[Scope of Claims] 1. A liquid detergent composition characterized by containing the following (a) to (c) as essential components: (a) Amide ethoxylate represented by formula (1) 5
~20% by weight (In formula (1), R ₁ is a straight-chain alkyl group having 9 to 17 carbon atoms,
n is 4 to 20 on average) (b) Alkylolamide 3 to 10 represented by formula (2)
weight% (In formula (2), R ₂ is a linear alkyl group having 5 to 17 carbon atoms) (c) Tertiary amine oxide represented by formula (3) 0.5
~5% by weight (In formula (3), R ₃ is a straight chain alkyl group having 6 to 18 carbon atoms,
(R ₄ and R ₅ are methyl, ethyl, or hydroxyethyl groups) 2. Claim 1 in which each of the components (a) to (c) is obtained from coconut oil or palm kernel oil as a raw material. The liquid cleaning composition described in Section 1.