JP2824192B2 - Detergent composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detergent composition, and more particularly, it has a rich and stable foaming at the time of washing oil and fat stains, and exerts a strong oil and fat stain washing power without impairing the foam amount. In particular, the present invention relates to a cleaning composition which is effective for removing grease stains on low-energy surfaces such as polyethylene and polypropylene and has good solution stability.

[0002]

2. Description of the Related Art The most basic performance required of household cleaning compositions is detergency and foaming power. It is generally said that there is no universal relationship between detergency and foaming power. However, consumers often judge the detergency based on disappearance of bubbles during washing, and also tend to prefer rich foaming in terms of palatability. For this reason, as a commercial product, a cleaning agent having foaming power, particularly rich foaming even in the presence of oil stains, is preferable.

Conventional cleaning agents use an anionic surfactant as a main cleaning base mainly for the reason of foaming power, and for the purpose of enhancing foaming power in the presence of oil stains and alleviating the action on the skin. , Tertiary amine oxides, higher fatty acid alkanolamides, alkylbetaines, and other nitrogen-containing amphoteric or nonionic surfactants. However, in the case of a detergent composition using a combination of these surfactants, the foaming power tends to be impaired as the emulsifying power for oil and fat stains increases in general, due to the surface chemistry of the surfactant.

[0004] Alkyl benzene sulfonates are
It is a surfactant having excellent detergency and foaming power, and has been widely used as a raw material for liquid detergents. However, since the low-temperature stability of the formulation is poor, low-temperature stabilizers include lower alcohols such as ethanol, lower alkylbenzene sulfonates such as benzenesulfonate and p-toluenesulfonate, ethylene glycol and propylene glycol. Glycols, urea and the like have been used alone or in combination. Among them, urea is widely used because of its excellent effect and economical.
When stored at a high temperature, it has the disadvantage that it decomposes to generate an unpleasant odor such as an ammonia odor or raises the pH. On the other hand, other low-temperature stabilizers are less effective in small amounts,
Even if a large amount is blended, a sufficient low-temperature stabilizing effect is not recognized and it is uneconomical.

Therefore, it has a detergency as a surfactant,
Attempts have also been made to use alcohol ethoxylate-based nonionic surfactants that have a low-temperature stabilizing effect, but the low-temperature stabilizing effect is not yet sufficient, and when used in a large amount, the detergency and foaming properties deteriorate. was there.

[0006] On the other hand, from the viewpoint of emulsifying power for fats and oils, it is known that use of a magnesium salt or a calcium salt of an anionic surfactant increases emulsifying power and excellent cleaning properties for fats and oils. -43550). However, it is not enough to achieve stable foaming in the presence of fats and oils, and in addition to detergency, the selection of other components and the optimal blending composition are necessary to satisfy low-temperature stability, foam persistence, etc. There are still many issues left.

[0007] Although alkyl glycosides and sugar fatty acid esters are nonionic surfactants,
It is known that it forms a stable foam by itself and also acts as a foam stabilizer against other anionic surfactants.

For example, JP-A-58-104625 describes a foaming surfactant composition containing an alkyl glycoside and an anionic surfactant.
JP-A-2-74999 discloses a low-irritant, hand-washing liquid detergent composition having excellent foaming power and detergency, comprising an alkyl glycoside, an anionic surfactant and a fatty acid alkanolamide. However, these cleaning compositions were not yet sufficient in solution stability at low temperatures.

Accordingly, an object of the present invention is to provide rich and stable foaming at the time of cleaning oil and fat stains, and to exert a strong oil and fat stain cleaning power without impairing the amount of the foams. It is an object of the present invention to provide a cleaning composition which is effective for removing oil and dirt on the surface and has good solution stability.

[0010]

Means for Solving the Problems In order to achieve the above object, the present inventors have conducted intensive studies, particularly on the point of achieving both emulsifying power, detergency and foaming power. It has been found that a detergent composition that achieves the above object can be obtained by using a specific amount of an alkaline earth metal as a counter ion of the agent and using a specific sugar derivative surfactant in combination.

[0011] The present invention has been made based on the above findings, and comprises the following components (a) , (b) and (c) ;
The total content of component (a) and component (b) is 5 to 50% by weight,
The mixing ratio (b) / (a) is 1/50 to 1/1 (weight ratio)
The present invention provides a detergent composition characterized in that the content of the component (c) is 0.1 to 20% by weight .

(A) Polyoxyethylene alkyl ether
A Le sulfate, 10-100% of the total amount of the salt (eq) is anionic surfactant component is a magnesium salt, or a polyoxyethylene alkyl ether sulfate <br/>, and the salt the substitution can be water soluble magnesium salt 10-300% based on the total weight of the salt (eq) anionic surfactant component coexisted.

(B) of the following [Chemical 2] (same as [Chemical 1])
A nonionic surfactant component comprising an alkyl glycoside represented by the general formula (I) .

[0014]

Embedded image

(C) Amphoteric consisting of tertiary amine oxide
Surfactant component.

Hereinafter, the cleaning composition of the present invention will be described in detail.

Polyoxyethylene of component (a) of the present invention
The alkyl ether sulfate is not particularly limited, and for example, the following are used.

[0018] The carbon atom 8 to 22, preferably a carbon atom 1
Alcohols having 2 to 16 with ethylene oxide 1 to 3
Polyoxyethylene alkyl ether sulfates derived from ethoxylation at 0 mol, preferably 1 to 12 mol.

The component (a) of the present invention comprises the above polyoxyethylene
10% to 100% of the total amount of Tylene alkyl ether sulfate
(Eq), more preferably 25% to 100% (equivalent) of Ma
Anionic surfactant component that is a gnesium salt , or
The above polyoxyethylene alkyl ether sulfate ,
Water soluble magnesium salts can be substituted with a salt 10-300% based on the total weight of the salt (eq), more preferably 10 to
50% (equivalent) of an anionic surfactant component.

The method for obtaining the above-mentioned anionic surfactant component which is the component (a) of the present invention includes the above-mentioned polyoxyethylene
Ma Ji alkylether sulfates in the form of unneutralized acid
A method of neutralizing a mixture partially with gonium hydroxide and neutralizing the remainder with an alkali metal hydroxide, an alkanolamine having 1 to 3 carbon atoms, or the above polyoxyethylene alkyl ester.
For example, there is a method in which a water-soluble magnesium salt is mixed with an alkali metal salt such as sodium or potassium of ammonium sulfate, an ammonium salt, or an alkanol ammonium salt having 1 to 3 carbon atoms. Examples of the water soluble magnesium salt, magnesium sulfate, magnesium chloride, magnesium carbonate, magnesium nitrate, is acetic magnesium and the like.

The alkyl glycoside represented by the general formula (I) of the above-mentioned [ Chemical Formula 2 ] of the component (b) of the present invention is represented by the general formula:
When the average value of y in (I) is greater than 1, that is, when a nonionic surfactant represented by the general formula (I) having a disaccharide or higher sugar chain as a hydrophilic group is contained, the sugar chain Has a binding mode of 1-2, 1-3, 1-4, 1-6, and α
It is possible to include any mixture having-, [beta] -pyranoside bonds or furanoside bonds and their mixed modes of attachment. The average value of y in the general formula (I) is 1
To 1.4 , more preferably 1.1 to 1.4.
The measurement of y is based on the proton NMR method.

R ₁ in the general formula (I) is preferably an alkyl group having 10 to 14 carbon atoms from the viewpoint of solubility and detergency . In a further, G is its structure is determined by the monosaccharide or disaccharide or more ingredients, as a raw material for this G is
For monosaccharides, glucose, fructose, galactose,
Xylose, mannose, lyxose, arabinose,
And disaccharides, maltose, xylobiose, isomaltose, cellobiose, gentibiose, lactose, sucrose, nigerose, turanose, raffinose, gentianose, melezitose, and mixtures thereof. Among these, preferred raw materials are glucose and fructose for monosaccharides, and maltose and sucrose for disaccharides or more, in view of their availability and cost. Of these, glucose is particularly preferred in terms of availability.

The total content of the above components (a) and (b) is 5
-50% by weight, preferably 10-30% by weight, and the blending ratio (b) / (a) is 1 / 50-1 / 1, preferably 1/2.
0 to 1/5.

The detergent composition of the present invention, in order to improve the action on and the skin to improve the foaming power further component (c) as of the general formula [Formula 3] (1) or
(2) to contain one or more amphoteric surfactants selected from tertiary amineoxy de or Ranaru group of the formula. Its content is 0 . It is 1 to 20% by weight, more preferably 0.5 to 10% by weight.

[0025]

Embedded image

The balance of the above components of the cleaning composition of the present invention is water, but may further contain a nonionic surfactant such as a fatty acid alkanolamide. Further, conventionally known low-temperature stabilizers, for example, ethanol, lower alcohols such as isopropanol, ethylene glycol, polyethylene glycol, propylene glycol,
Glycols such as polypropylene glycol, benzenesulfonate, p-toluenesulfonate, lower alkylbenzenesulfonates such as xylenesulfonate,
Acetamides, aromatic carboxylate such as benzoate and salicylate can be used in combination. Other known substances which can be blended with the liquid detergent can be used in combination depending on the purpose. Examples of such a substance include an organic builder and an inorganic builder for improving detergency of citric acid, malic acid, gluconic acid or a salt thereof, and the like.
Further examples include additives such as anti-hand roughness agents, enzymes, protein derivatives, opacifiers, coloring agents, preservatives, and fragrances.

The detergent composition of the present invention comprises a detergent for clothing,
It is suitably used as a kitchen cleaner, a hair cleaner, a body cleaner, a house cleaner, a hard surface cleaner for metal plastics and the like.

[0028]

EXAMPLES The cleaning composition of the present invention will be described in more detail with reference to the following examples.

Example 1 A liquid detergent composition having the composition shown in Table 1 below was prepared.
For each, the foaming power, detergency, and freeze recovery (solution stability) were measured by the following test methods. The results are shown in Table 1 below.

(1) Foaming force test method (I) Commercially available butter was added as a soil component to a 1.0% by weight detergent solution (water used was 3.5 ° DH water) at 1.0% by weight. The foaming power at that time is measured. The measuring method was as follows: 40 ml of the above detergent containing butter was added to a 5 cm diameter glass cylinder,
Perform rotary stirring at 15 ° C. for 15 minutes, and measure the foam height immediately after stopping.

(2) Foaming power test method (II) Beef tallow / rapeseed oil (9/1) was melted, and 5.0 g was placed on a plate.
After being adhered, the soil component left in the room for several days is replaced with a detergent solution having a concentration of 5.0% by weight (water used is 3.5 ° DH water).
Sponge wash with 30 ml. The foam generated at this time is transferred to a measuring cylinder, and the volume of the foam is measured.

(3) Detergency test method After melting beef tallow / soybean oil (1/1) as a soil component and attaching it to a polypropylene plate in an amount of 0.5 g, this plate was washed with a 0.15% by weight detergent solution. 700 ml (water used is 3.5 ° DH water), and using a leanut improved detergency tester (rotation speed 250 times per minute) at 30 ° C.
Wash for 15 minutes. The plate is then rinsed with water and allowed to air dry overnight. Next, the weight of the polypropylene plate after standing is measured, and the ratio (%) of removal of the dirt component from the plate is determined, and this is used as an index of detergency.

(4) Freezing Recovery Test Method The composition is put in a glass sample bottle having a capacity of 100 ml, and left in a -15 ° C. constant temperature bath for 24 hours to freeze. Thereafter, the sample is transferred to a 5 ° C. constant temperature bath, and the state after 24 hours is visually observed, and the stability at the time of freezing recovery is determined according to the following criteria. ；: Uniform transparent solution ×: turbidity or precipitation in the entire solution

[0034]

[Table 1]

Example 2 A liquid detergent composition having the composition shown in Table 2 below was prepared.
For each, the foaming power, detergency, and freeze recovery were measured in the same manner as in Example 1. The results are shown in Table 2 below.

[0036]

[Table 2]

In the above [Table 1] and [Table 2 ] , * 1
The compounds marked with * 6 are as follows. _{* 1 AES-Mg (C 12} ); polyoxyethylene (4) dodecyl ether magnesium sulfate _{* 2 AES-Na (C 12} ); polyoxyethylene (4) dodecyl ether sulfate _{* 3 LAS-Na (C 12} ); Sodium linear dodecylbenzenesulfonate * 4 AS-Na (C ₁₂ ); sodium dodecyl sulfate * 5 AOS-Na (C ₁₄ ); sodium α-olefin sulfonate * 6 SAS-Na (C ₁₂ ); dodecane sulfonenic acid sodium

[0038]

The cleaning composition of the present invention has rich and stable foaming at the time of cleaning oil and fat stains, and exerts a strong detergency for oil and fat stains without impairing the amount of foams, especially polyethylene, polypropylene and the like. It is effective for removing grease stains on the low energy surface, and has good solution stability at low temperatures.

────────────────────────────────────────────────── ─── Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) C11D 1/22-1/29 C11D 1/68 C11D 1/88-1/92 WPI / L (QUESTEL)

Claims (1)

(57) [Claims] [Claim 1] The following components (a), the total amount of (b) and (c) containing, and components (a) and (b) 5 to 5
0% by weight, compounding ratio (b) / (a) is 1/50 to 1/1
(Weight ratio), and the content of the component (c) is 0.1 to 20.
A cleaning composition characterized in that it is a percentage by weight . (A) polyoxyethylene alkyl ether sulfate, 10-100% of the total amount of the salt (eq) is magnesium
Anionic surfactant component which is a sodium salt , or polio
The alkoxy polyoxyethylene alkyl ether sulfate, a water soluble magnesium salt which can be replaced with the salt, the total amount of the salt 10
An anionic surfactant component coexisting in an amount of up to 300% (equivalent). (B) alkyl represented by the following general formula (I)
A nonionic surfactant component comprising a glycoside . Embedded image (C) an amphoteric surfactant comprising a tertiary amine oxide
Minutes.