JP2657556B2 - Detergent composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention is a detergent composition which is excellent in feel, foaming power and detergency given to hands at the time of washing and after washing, and which is less irritating to the skin. About.

[Problems to be solved by conventional technology and invention]

Hard surface cleaning agents for tableware and the like usually have a main purpose of removing grease stains. When trying to remove greasy stains using such a cleaning agent, the user generally performs the operation while whipping with a hand or a sponge. The function of the foam at this time is to reduce the force required to scrape the dirt, and in many cases, the foaming power of the cleaning agent is often a measure of the cleanability of oily dirt. Is an important factor in such cleaning agents. Accordingly, detergents having excellent ability to remove greasy stains and foaming power have been widely used. Examples of this include those using anionic surfactants such as alkyl benzene sulfonate, α-olefin sulfonate, alkyl sulfate, paraffin sulfonate, ethoxylated alkyl ether sulfate as the main surfactant, and especially alkyl benzene sulfonate. Sodium sulfonate has been widely used as a base with excellent cleaning performance. However, those using these anionic surfactants have a problem in that they have a strong degreasing power from the skin and tend to cause rough hands.

Therefore, recently, polyoxyethylene alkyl ether sulfate, which is less irritating to the skin, is used as the main cleaning base, and a tertiary amine oxide, higher fatty acid diethanolamide, etc. are used in combination as auxiliary surfactants. Detergents have been used which further improve various performances and at the same time make the action on the skin milder.

However, although the effects of various cleaning agents on the skin are milder than before,
At present, it has not yet reached a satisfactory level.

Alkyl glycosides, which are sugar derivative surfactants, on the other hand, are low-irritant surfactants and, despite being non-ionic surfactants, not only produce stable foams themselves, but also have other negative effects. It is known to act as a foam stabilizer for ionic surfactants, and has been receiving attention in recent years. For example, JP-A-58-104625 discloses a foaming surfactant composition containing an alkyl glycoside and an anionic surfactant, and JP-A 62-74999 discloses an alkyl glycoside and an anionic surfactant. A low-irritant, foaming and washing liquid detergent composition containing an activator and a fatty acid alkanolamide, which is excellent in detergency, has been disclosed in Japanese Patent Application Laid-Open No. 58-133204, alkyl glycosides, alkyl glyceryl ethers, nonionic A detergent composition for clothing containing an active agent and having good detergency is described. As described above, a detergent containing an alkylglycoside as a main component is expected to be less irritating to the skin and more excellent in foaming power and the like than conventional detergents.

A first object of the present invention is to provide a detergent composition which has a better feeling given to hands at the time of washing and after washing without impairing the performance of the alkyl glycoside, and It is an object of the present invention to provide a detergent composition having enhanced detergency against oil (oil re-adhesion prevention effect).

[Means for solving the problem]

Under such circumstances, the present inventors have conducted intensive studies to maximize the properties of alkyl glycosides, and as a result, if an alkyl polyglyceryl ether having HLB of 5 or more is used in combination at a specific ratio as a cosurfactant, At the time of washing, a cleaner having a good feeling given to hands after washing is obtained,
It has also been found that the addition of an ethylene oxide-added non-ionic surfactant to this compound improves the detergency (the effect of preventing oil re-adhesion), thus completing the present invention.

That is, the present invention relates to the following components (a) and (b): (a) an alkylglycoside; (b) an alkylpolyglyceryl ether having an HLB of 5 or more (a): (b) = (100): (1 to 50) It is intended to provide a cleaning composition characterized in that it is contained in a weight ratio.

The present invention also relates to the following components (a), (b) and (c): (a) an alkyl glycoside; (b) an alkyl polyglyceryl ether having an HLB of 5 or more; and (c) an ethylene oxide-added nonionic surfactant. ): (B): (c) = (100): (1-50):
The present invention also provides a detergent composition characterized in that it is contained in a weight ratio of (1 to 50).

In the present invention, the alkylglycoside of the component (a), which is the main surfactant, is represented by the following general formula (I) R ₁ (OR ₂ ) _x G _y (I) (wherein, R ₁ has 8 to 18 carbon atoms) A linear or branched alkyl, alkenyl or alkylphenyl group; R ₂ represents an alkylene group having 2 to 4 carbon atoms;
And G is a residue derived from a reducing sugar having 5 to 6 carbon atoms, and y is a number having an average value of 1.0 to 3.0).

(I) In the formula, R ₁ is a linear or branched alkyl group, alkenyl group or alkylphenyl group having 8 to 18 carbon atoms.
10-14 are preferred. R ₂ is an alkylene group having 2 to 4 carbon atoms, but preferably has 2 to 3 carbon atoms in view of water solubility. x has an average value of 0 to 5, and this value adjusts the water solubility and crystallinity of the component (a). That is, the larger the value of x, the higher the water solubility and the lower the crystallinity. Therefore, a preferable value of x is 0 to 2
It is. (I) In the formula, the structure of G is determined by a raw material of monosaccharide or disaccharide or more. As a raw material of G, glucose, galactose, xylose,
Mannose, lyxose, arabinose sugar and mixtures thereof, etc., in the case of two or more sugars, maltose, xylobiose, isomaltose, cellobiose, gentibiose,
Lactose, sucrose, nigerose, turanose, raffinose, gentianose, melezitose and the like, and mixtures thereof. Among these, particularly preferred monosaccharide raw materials are glucose or fructose in view of their availability and low cost, and maltose or sucrose for disaccharides or more. When y has an average greater than 1, that is, when two or more sugar chains are a hydrophilic group, the sugar chain binding mode is 1-2, 1-3, 1-4, 1-6 bond, and further α-, It is possible to include β-pyranoside, or any mixture having a furanoside bond and a mixed bond mode thereof (the method of measuring y in the present invention is by a proton NMR method). The average value of y is 1.3
The content of the component (b) and the component (c) is preferably 1.2 to 1.45 in order to obtain a sufficient cleaning effect with a smaller amount. The component (a) is incorporated in the detergent composition of the present invention in an amount of 1 to 50% by weight, preferably 10 to 35% by weight.

(B) used as a co-surfactant in the present invention
As the component, those represented by the following general formula (II) are preferable.

R ₃ O (GL) _z (II) (wherein, R ₃ represents a linear or branched alkyl, alkenyl or alkylphenyl group having 8 to 18 carbon atoms, GL represents a residue derived from glycerin, z has an average value of 2
The average value of z in the formula (II) is 2 to 4, but it is necessary to be 2 to 3 in consideration of the water solubility and detergency of the cleaning composition of the present invention. is there. The HLB of the component (b) is preferably 5 or more. The component (b) is used in a weight ratio of 1/100 to 1/2, preferably 1/3 to 1/30 with respect to the alkyl glycoside of the component (a), and is used in the detergent composition of the present invention. It is blended in the range of 0.1 to 10% by weight, preferably 1 to 6% by weight.

By adding an ethylene oxide-added nonionic surfactant as the component (c) in addition to the components (a) and (b), the detergency against oil (the effect of preventing oil re-adhesion) can be improved. .

The ethylene oxide addition type nonionic surfactant component (c) include polyoxyethylene (average addition molar number: 3 to 20) alkyl (C ₈ -C ₂₀₎ ether, polyoxyethylene (average addition mole number 3 20) alkyl (C ₅
-C ₂₀₎ phenyl ether, polyoxyethylene (average addition molar number: 3 to 20) sorbitan fatty acid (C ₇ -C ₁₉₎ esters, polyoxyethylene (average addition molar number: 3-20) sorbitol fatty acid (C ₇ -C ₁₉ ) Ester, polyethylene (average number of moles added: 3 to 20) glycol fatty acid (C ₇ to
C ₁₉₎ esters, polyoxyethylene (average addition molar number: 3 to 20) polyoxypropylene (average addition mole number 3-2
0) alkyl (C ₈ -C ₂₀ ) ether, polyoxyethylene (average addition mole number 3-20) castor oil, polyoxyethylene (average addition mole number 3-20) hydrogenated castor oil, polyoxyethylene (average addition mole) Number 3 to 20) alkyl (C ₈ to
C ₂₀ ) amine, polyoxyethylene (average number of moles added: 3)
20) fatty acid (C ₇ -C ₁₉₎ such as amide.
The component (c) is 1/100 to 1 / weight ratio of the component (a).
2, preferably used in the range of 1/3 to 1/30, and incorporated in the detergent composition of the present invention in the range of 0.1 to 10% by weight, preferably 1 to 6% by weight.

In the cleaning composition of the present invention, in addition to the above-mentioned essential components, a known activator for a cleaning agent can be appropriately added and blended as needed within a range not to impair the effects of the present invention. Such activators include, for example, mono- or dialkanol (C ₂ -C ₃ ) amides of C ₃ -C ₂₂ higher fatty acids, tertiary alkyl (C ₈ -C ₁₈ linear or branched) amine oxides and the like. Nonionic surfactant; α-olefin (C ₈ -C ₂₀ ) sulfonate [Na, K, Mg, triethanolamine (TEA), NH ₄ ]
Polyoxyethylene (average addition moles 2 to 8) alkyl (C ₃ -C ₁₃ linear or branched) sulfate [Na, K, Mg, T
EA, NH ₄ ], the following general formula (III) Wherein R ₄ represents an alkyl or alkenyl group having 8 to 18 carbon atoms, R ₅ represents an alkyl group having 1 to 4 carbon atoms, and M represents an alkali metal. , N- acyl (C ₈ ~C ₁₈₎ glutamate [Na, K, TEA], monoalkyl (C ₈ ~C ₁₈₎ phosphate [Na, K, TEA, arginine], linear alkyl (C ₁₀ ~ _C18 ) Benzenesulfonic acid salt [Na, K, M
g] and the like; and amphoteric activators such as alkyl betaine and alkyl sulfo betaine.

The pH range of the stock solution of the cleaning composition of the present invention is preferably from 4 to 10, and particularly preferably from 5 to 8.

Further, other optional components can be added to the cleaning composition of the present invention as long as the separation stability, cleaning performance and foaming performance of the composition are not impaired. For example, lower aliphatic alcohols such as ethyl alcohol; solubilizers such as sodium and potassium salts of toluenesulfonic acid and xylenesulfonic acid and uric acid; viscosity modifiers such as clay minerals and water-soluble polymer substances; calcite and silica stone Water-insoluble abrasives such as calcium phosphate, zeolite, polyethylene, nylon, and polystyrene; humectants such as glycerin and sorbitol; feel-improving agents such as cationized cellulose; can do.

〔The invention's effect〕

The cleaning composition of the present invention is a low-irritating cleaning composition having excellent detergency and rich foaming power, and having a high practical value with an excellent hand feel during use, and in particular, tableware. Washing soap,
It is a detergent composition suitable as a shampoo, a skin detergent, and a light detergent for clothing.

〔Example〕

Next, the present invention will be described more specifically with reference to examples, but the present invention is not limited to these examples.

Example 1 The compositions shown in Table 1 below were prepared, and evaluated for foaming power, hand oil re-adhesiveness (detergency) during and after use by the following test methods. Table 1 shows the results.

<Test method> (1) Foaming force test Detergent solution with 5% detergent concentration (water for use: water with a hardness of 3.5 ° DH) 3
0 g in a 5 l measuring cylinder at 20 ° C for 90 seconds with a sponge,
Rinse and measure the amount of foam after foaming.

(2) Hand feel at the time of use and after use Two kinds of detergents A (comparative product 1) and B (comparative products 2 to 7, present invention products 8 to 16) are prepared, and each is put in a 2 l beaker at 40 ° C.
Prepare a 10% by weight detergent solution. The feels of the aqueous solutions of the detergents A and B are compared by a sensory test as follows.

Feel of the liquid Immerse the left and right hands separately in the aqueous solution of detergent A and B up to the wrist.
The feel of the liquid 1 minute after the immersion is scored on the basis of the detergent A based on the following evaluation points.

Feeling after use After sufficient rinsing, the hand feeling after wiping hands with a dry towel is scored based on the following evaluation points based on detergent A.

The above test is performed on 10 test subjects, and the feeling of use of the detergent B is evaluated by the sum of the scores obtained for each item.

(3) Oil re-adhesion test Detergent solution with a detergent concentration of 0.1% (service water: water with a hardness of 3.5 ° DH)
Add 500 mg of salad oil as a dirt component to 100 g, and add 2
Stir at 0 ° C. for 5 minutes. After standing for 1 minute, a polyethylene plate is put into the solution for 5 seconds, gently pulled up, rinsed with running water (tap water) for 10 seconds, dried, and the amount of salad oil on the plate is measured.

Example 2 Dishwashing detergent: (% by weight) Alkyl glycoside ¹⁾ 20 Diglycerin-α-monolauryl 3 ether ²⁾ (HLB = 5.8) Coconut oil fatty acid diethanolamide 3 Polyoxyethylene (= 8) alkyl 2 (C ₁₂ ) -C ₁₃₎ ether ethanol 3 perfume, dye trace water balance 100 ¹⁾ in formula (I), x = 0, y = 1.35 R 1: C 9 ~C 11 G: glucose residue This composition was excellent in foaming power, excellent in prevention of oil re-contamination, and had good hand feel during use, and gave a sufficient and satisfactory effect as a dishwashing detergent.

Claims (2)

(57) [Claims] (1) The following components (a) and (b): (a) an alkylglycoside; (b) an alkylpolyglyceryl ether having an HLB of 5 or more: (a) :( b) = (100) :( 1-50) A cleaning composition characterized in that it is contained in a weight ratio. 2. The following components (a), (b) and (c): (a) an alkyl glycoside; (b) an alkyl polyglyceryl ether having an HLB of 5 or more; and (c) an ethylene oxide-added nonionic surfactant. a): (b): (c) = (100): (1 to 50):
A detergent composition comprising (1 to 50) by weight.