JPS6386798A - Liquid detergent composition - Google Patents

Abstract

(57) [Abstract] 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 relates to a liquid detergent composition having excellent detergency and rich lathering at low concentrations.

[Conventional technology]

Cleaning power and foaming power are the most basic properties required of household cleaning compositions. It is generally said that there is no universal relationship between foaming power and detergent power, and it cannot be said that a detergent with good foaming power necessarily has good detergent power.

On the other hand, consumers often judge detergency by the disappearance of foam during washing, and they also tend to prefer rich foaming from the viewpoint of palatability [6]. For this reason, it is preferable that the product has excellent detergency and foaming power.

Conventional detergents use anionic surfactants as the main cleaning base mainly for the reason of foaming power, and also use tertiary grade surfactants for the purpose of increasing the detergency or foaming power in the presence of oil stains. Nitrogen-containing amphoteric or nonionic surfactants such as amine oxides, higher fatty acid alkanolamides, and alkyl betaines are used in combination.

[Problems to be Solved by the Invention] However, conventional liquid detergents that use an anionic surfactant in combination with a nitrogen-containing amphoteric or nonionic surfactant cannot be used at relatively high concentrations of 1% or more. Although it has cleaning power and foaming power, at a low concentration of less than 14, the cleaning power against oily stains is insufficient, and once removed, the dirt tends to re-adhere to the object to be cleaned.

In recent years, consumers have tended to use detergents in low concentrations to prevent or reduce the roughness of their hands caused by detergents.

Also, from the viewpoint of economy, it is desirable to use it at a low concentration.

For this reason, there has been a strong desire to develop a liquid detergent that has excellent detergency and foaming power even at low concentrations.

[Means for solving problems]

Under such circumstances, the present inventors have conducted intensive research to overcome the above problems, and as a result, have developed a cleaning composition that uses a salt ionic surfactant and a nitrogen-containing amphoteric or nonionic surfactant in combination. By adding a specific polyoxyalkylene-added nonionic surfactant to the liquid detergent composition, a liquid detergent composition with excellent detergency and foaming power can be obtained even at a low concentration of less than 1%. They discovered this and completed the present invention.

That is, the present invention provides the following components, (c) and 0(A)
Synthetic anionic surfactant 10-40% by weight CB) Nitrogen-containing amphoteric or nonionic surfactant 1-10% by weight xyalkylene/Nitrogen-free polyoxyalkylene with an added mole number of 50-300 The present invention provides a liquid detergent composition containing 0.5 to 10% by weight of an additional nonionic surfactant.

Components used in the present invention include, for example, polyoxyethylene alkyl or alkenyl ether sulfates,
Alkylbenzene sulfonate,? Examples of lyoxyethylene alkyl include alkenyl ether acetate, α-olefin sulfonate, alkanesulfonate, α-sulfo fatty acid ester salt, etc., but what about their skin-friendly properties? Dioxyethylene alkyl 4L<t-tAlkenyl ether sulfate is preferable from the viewpoint of detergency and cost, and alkylbenzene sulfonate is preferable. Preferred examples of these synthetic anionic surfactants are as follows.

As the polyoxyethylene alkyl or alkenyl ether sulfate, the following general formula (I) R, -0-(CH
, CH, 0) So, M (I) [wherein, R1 represents an alkyl group or alkenyl group having 10 to 24 carbon atoms, a represents a number from 1 to 5, and M represents an alkali metal, ammonium, or alkanolamine. ] Compounds represented by these can be mentioned. As the alkylbenzene sulfonate, a compound represented by the following general formula (6) [wherein represents an alkyl group having 8 to 2 o carbon atoms, and M has the same meaning as above] may be mentioned. As a broken oxyethylene alkyl or alkenyl acetate, the following general formula) R1-0-(CH,CH,O)aCI(,C00M
Examples include compounds represented by @0 [wherein R1, a and M have the same meanings as defined above]. In addition, examples of α-olefin sulfonates and alkali/sulfonates include those having 10 to 24 carbon atoms, and examples of α-sulfo fatty acid ester salts include those in which the raw fatty acid has 10 to 2 carbon atoms.
4 is included.

The nitrogen-containing amphoteric or nonionic surfactant for the component is not particularly limited as long as it is compatible with the above component (6), but monolong chain alkyl or alkenyl tertiary amine oxide, Higher fatty acid alkanolamides or their ethylene oxide adducts are preferred. Examples of the mono-long chain alkyl or alkenyl tertiary amine oxide include the following general formula (IV) Bird-N→0(■) R.

[In the formula, R3 represents an alkyl group or alkenyl group having 10 to 18 carbon atoms, and R4 and horse represent an alkyl group having 1 to 2 carbon atoms]. Higher fatty acid alkanolamides or their ethylene oxide adducts are, for example, the following general formula M [wherein R6 is an alkyl group or alkenyl group having 10 to 18 carbon atoms, b is a number of 1 to 3, and C is O The number of ~3 is shown] Compounds represented by the following are mentioned.

The number of moles of oxyalkylene added as component 0 is 50 to 30
Examples of the nitrogen-free polyoxyalkylene-added nonionic surfactant having a nitrogen content of 0 include the following.

■ The following general formula (VI) Ry -0-(AO) dRs (VI) [In the formula, is an alkyl group, alkenyl group or acyl group having 10 to 24 carbon atoms, and Rs is an alkyl group having 10 to 24 carbon atoms. group, alkenyl group, acyl group, or hydrogen atom, A represents ethylene or propylene group, and d represents a number from 50 to 300]
A polyoxyalkylene alkyl moiety represented by alkenyl ether or polyoxyalkylene fatty acid ester.

■ The following general formula (■) CH, O (AO) eR.

CHO(AO),R,. (□)CH,O(A
O) gRl, [wherein Tori~R11 is an alkyl group, alkenyl group, acyl group, or hydrogen atom each having 10 to 24 carbon atoms (however, at least one of Tori~R11 is an alkyl group, alkenyl group, or acyl group) ), A represents ethylene or propylene group, and e-g each represent a number from 0 to 100 (
However, the sum of e-g is 50 to 300)] Polyoxyalkylene glycerin alkyl or alkenyl ether, polyoxyalkylene glycerin fatty acid ester O ■ The following general formula () 1) % formula % [In the formula, Rtz ~ RI7 each represents an alkyl group, alkenyl group, acyl group, or hydrogen atom having 10 to 24 carbon atoms; however, at least one of R12 to RI7 is an alkyl group, alkenyl group, or acyl group), A is ethylene or zolopyrene group, h-wm are each 0 to 10
0 (however, the sum of hm is 50 to 300)] Polyoxyalkylene lupitane alkyl 4L<a alkenyl ether ? 'Lioxyalkylenerupitan fatty acid ester O ■ The following general formula (IX) [In the formula, R11 to Bird1 each represent an alkyl group, an alkenyl group, an acyl group, or a hydrogen atom having 10 to 24 carbon atoms, provided that Rts-R21 at least one of which is an alkyl group, an alkenyl group, or an acyl group), A represents ethylene or a zolopyrene group, and """q each represents O to 100.
(however, the sum of n - q is 50 to 300) ] Polyoxyalkylene Solpit alkyl or alkenyl ether, polyoxyalkylene Solpit fatty acid ester.

(2) Polyoxyalkylene castor oil or hardened castor oil derivatives (however, the average number of added moles of oxyalkylene is 50 to 300).

Korela's polyoxyalkylene type nonionic surfactant is characterized by having a long chain alkylene oxide group, and the number of moles of the alkylene oxide group added is suitably 50 to 300, preferably 70 to 300. It is 200. If the number of moles added is less than 50, the effect of enhancing detergency at low concentrations is small, and on the contrary, foaming tends to be inhibited, which is not preferable. Moreover, if the number of moles added exceeds 300, the viscosity increases, which is not preferable.

The liquid detergent composition of the present invention contains 10 to 40% of component (6).
0-40% by weight B) 1-10% by weight, component 0 0.5%
~10% by weight is blended.

In addition to the above-mentioned essential components, the liquid detergent composition of the present invention may contain conventionally known low-temperature stabilizers as optional components, such as lower alcohols such as ethanol and isoprono-9ol, and ethylene glycol. ,? Lioethylene glycol, propylene glycol? Glycols such as riderogylene glycol, benzenesulfonic acid,
Examples include lower alkyl (C, to Cs) be/zene sulfonic acids such as p-toluenesulfonic acid and xylene sulfonic acid, aromatic urgonic acids such as benzoates and salicylates, and urea. Furthermore, various substances known to be compoundable in detergents can be used in combination depending on the purpose. These include organic builders and inorganic builders to improve detergency such as citric acid, malic acid, gluconic acid, or their salts, as well as anti-aging agents, enzymes, protein derivatives, opacifying agents, and coloring agents. , preservatives, fragrances, and other additives.

Furthermore, in practice, the pH of the cleaning composition is 5 to 9.
It is desirable that the pH is 6 to 8, and more preferably the pH is 6 to 8.

[Action and effect of invention]

The liquid detergent composition of the present invention exhibits excellent detergency and foaming power even in a low concentration range of less than 1%. Therefore, the detergent not only has the original cleaning power and foaming power of the detergent, but also can be used at a low concentration, causing less roughness on the skin of the hands, and is also excellent in terms of economy.

〔Example] Next, the present invention will be explained with reference to Examples.

In addition, the test method in the example was performed as follows.

(a) Cleaning power test (1) Preparation of sludge bath Two pharmacopoeia beef tallow and pharmacopoeia soybean oil (1:1)
) mixed oil and fat 20? Prepare a sludge bath by dissolving Oil Red 0.1F in 60 dlC of chloroform.

(2) How to make model dirty glass pieces: A set of 6 clean glass slides will be used for the test, with 3 decimal points.
Measure the correct mass to the nearest digit. Each sheet is immersed in a sludge bath at 25±1° C. for 1 to 2 seconds to a depth of about 55 fl, and removed after the sludge has adhered to it. Use clean gauze or other cloth or filter paper to absorb dirt that has accumulated at the bottom of the slide glass, and then remove the dirt to a uniform state.
Air dry at °C. The model stained glass piece shall be subjected to the test after it has been left to air dry for at least 1 hour and within 2 hours. On this occasion,
The amount of dirt adhered to 6 pieces of model dirty glass is 0.1
Make it so that it becomes 0, 0 l Off. A set of 6 model dirty glass pieces will be used.

(3) Water used 3° DH (CaO/MgO% ratio 3/1) is used.

59.0 pounds of calcium chloride (dihydrate salt), 27.2 my of magnesium chloride (hexahydrate salt),
Dissolve in ion-exchanged water or distilled water to make 1,000-.

(4) Test operation cleaning: One set of model dirty glass pieces created in C2)
．． Put it in 700d of 15% detergent solution and test it for 3 times using a Linatsu improved detergency tester (rotation speed 250±10 times per minute).
Wash at 0±1°C for a specified period of time.

Rinse: After washing the model, remove the dirty glass pieces (3).
Rinse in 700ml of used water for 1 minute at 30±1°C using a Rinatsu improved cleaning tester.

Drying: After rinsing, the model dirty glass piece is air-dried day and night, and then subjected to determination of detergency.

(5) Evaluation of cleaning power The weight of the model-stained glass piece was measured, and the cleaning power was evaluated based on the drop-off ratio (C%) of the model soil.

←) Foaming power The foaming power is measured when 0.1% of commercially available putter is added as a stain component to a detergent solution with a detergent concentration of 0.5%. The measurement method is to place 4 Q cc of the above detergent solution to which butter has been added into a glass cylinder with a diameter of 5 c1n, rotate and stir for 10 minutes, and measure the foam height immediately after stopping.

Example 1 According to the above test method, cleaning power,
A foaming power test was conducted. The results are shown in Table IK.

Example 2 The detergent composition shown below was evaluated for its cleaning power and foaming power. The results are shown in Table 2 [Blend composition] Raw material name Blending ratio (heavy weight) POE (
3) *Sodium lauryl sulfate 20 laurylzomethylamine oxide 5 long chain P
OEI type nonionic surfactant O~8 (Table-
(See 2) Ethanol 5 Water
The rest of the table is all white Table -2 (): Number of moles of ethylene oxide added #PI) C: Abbreviation for d-lyethylene glycol (): Number of moles of ethylene oxide added Example 3 Detergent power of the cleaning composition shown below, Foaming power was evaluated. In addition, the appearance of the cleaning composition at room temperature was observed. The results are shown in Table-3.

Margin below

Claims (1)

[Claims] 1. The following components (A), (B) and (C) (A) 10 to 40% by weight of a synthetic anionic surfactant (B) A nitrogen-containing amphoteric or nonionic surfactant Agent 1~
A liquid cleaning agent characterized by containing 10% by weight (C) 0.5 to 10% by weight of a nitrogen-free polyoxyalkylene addition type nonionic surfactant having an oxyalkylene addition mole number of 50 to 300. Composition. 2. The liquid cleaning composition according to claim 1, wherein component (A) is a polyoxyethylene alkyl or alkenyl ether sulfate or an alkylbenzene sulfonate. 3. The liquid detergent composition according to claim 1, wherein component (B) is a mono-long chain alkyl or alkenyl tertiary amine oxide, a higher fatty acid alkanolamide, or an ethylene oxide adduct thereof. 4. Component (C) is polyoxyalkylene alkyl or alkenyl ether, polyoxyalkylene fatty acid ester, polyoxyalkylene glycerin alkyl or alkenyl ether, polyoxyalkylene glycerin fatty acid ester, polyoxyalkylene sorbitan alkyl or alkenyl ether, polyoxyalkylene sorbitan The claimed invention is one or more selected from the group consisting of fatty acid ester, polyoxyalkylene sorbitol alkyl or alkenyl ether, polyoxyalkylene sorbitol fatty acid ester, polyoxyalkylene castor oil, and polyoxyalkylene hydrogenated castor oil. A liquid cleaning composition according to scope 1.