JP2010095571A - Liquid detergent composition for kitchen - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid detergent composition for kitchen, which is improved in detergency to oil stain with low skin irritation, has satisfactory rinsing property in water as well as excellent foam stability, and excellent in feeling such as moist or smooth touch of skin after use. <P>SOLUTION: The liquid detergent composition for kitchen contains (a) 0.1-5 mass% block type alkylene oxide derivative expressed by formula (I): Z-[O(AO)<SB>a</SB>-(EO)<SB>b</SB>-R]<SB>2</SB>; (b) 5-60 mass% polyoxyethylene alkyl ether sulfate ester salt; and (c) 0.1-5 mass% tertiary amine oxide expressed by formula (II): R<SP>3</SP>(OCH<SB>2</SB>CH<SB>2</SB>)<SB>m</SB>-N(-R<SP>2</SP>)(-R<SP>4</SP>)→O. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a liquid detergent composition for kitchen, and more particularly to improvement of its cleaning property and feeling of use.

  Kitchen liquid cleaners are routinely used to remove oil stains such as tableware. As a function desired for the liquid detergent for kitchens, in addition to the ability to clean oil stains, it often touches the skin during use, and therefore, it is desired to be a mild and low skin irritation composition. In addition, during use, since it is common to use additionally when foaming is reduced, it is desired that the foam can be sustained with a small amount of use and has good rinsing properties.

  Liquid detergents for kitchen use include anionic surfactants such as alkylbenzene sulfonates and higher alkyl ether sulfates, higher fatty acid alkanolamides, and polyoxyethylene alkyl ethers as detersive and foaming ingredients. An amphoteric surfactant such as an ionic surfactant or amidopropyl betaine and a tertiary amine oxide are used in combination. Tertiary amine oxides are used in combination with the aforementioned surfactants because they provide improved detergency, foam stability, and are mild to the skin. However, when a tertiary amine oxide is used in combination, the skin irritation is relieved, but there is a problem that the feeling after use such as moist feeling, smooth feeling and refreshing feeling is inferior.

  As means for solving this problem, various proposals for pursuing low irritation to surfactants which are detergency and foaming components have been made. For example, a liquid detergent composition containing polyoxyethylene alkyl ether, fatty acid diethanolamide, amine oxide, and sugar ester surfactant has been proposed (for example, Patent Document 1). However, these are mild and mild to the skin, but the rinsing properties and the smoothness and moistness after use are not sufficient.

  In addition, sulfosuccinamide type anionic surfactant, polyoxyethylene alkyl ether sulfate ester salt or alkyl sulfate ester salt, linear nonionic surfactant containing oxybutylene group, and amine oxide are essential components. A liquid detergent composition for kitchens has also been proposed (for example, Patent Document 2). However, the straight-chain nonionic surfactant does not have sufficient detergency and foam persistence, and a structure having a terminal hydroxyl group does not have a satisfactory effect on skin irritation.

Furthermore, a liquid detergent composition for kitchens containing surfactant and saponin as essential components has also been proposed (for example, Patent Document 3). However, although saponin promotes biodegradation of surfactants, it does not have sufficient detergency and persistence of foam, and furthermore, a satisfactory effect has not been obtained in touch (especially a refreshing feeling after use). .
Two different anionic surfactants, polyethylene glycol, foam stabilizing surfactants, and kitchen detergent compositions for hand washing containing optional components as essential components have also been proposed (for example, Patent Document 4). In the touch (especially refreshing feeling after use), a sufficiently satisfactory effect was not obtained.
There has also been a proposal (for example, Patent Document 5) in which a linear polyalkylene oxide dialkyl ether having an alkyl group introduced at the terminal hydroxyl group is blended. Was insufficient.
Japanese Patent Laid-Open No. 3-188195 Japanese Patent Application Laid-Open No. 2002-226887 JP-A-10-324893 JP 2004-51958 A Japanese Patent No. 4090330

  The present invention has been made in view of the above-mentioned problems, and its purpose is low skin irritation, improved washing performance against oil stains, excellent foam persistence, and good rinsing properties during washing. An object of the present invention is to provide a liquid detergent composition for kitchens which has an excellent feeling after use, particularly a refreshing feeling.

  As a result of intensive studies by the present inventors in order to solve the above-mentioned problems, a block type alkylene oxide derivative having a specific structure is blended with a polyoxyethylene alkyl ether sulfate salt and a tertiary amine oxide to perform washing. In order to complete the present invention, it has been found that a liquid detergent composition for kitchen can be obtained that has excellent properties, foam persistence, rinsing properties, low irritation to the skin, and excellent feeling after use, particularly refreshing feeling. It came.

（式中、Ｚは、ダイマージオールから水酸基を除いた残基、ＥＯはオキシエチレン基、ＡＯは炭素数３〜４のオキシアルキレン基であり、これらの付加形態はブロック状である。ａ、およびｂは、各々前記オキシアルキレン基、オキシエチレン基の平均付加モル数で、１≦２×ａ≦１５０、１≦２×ｂ≦１５０であり、炭素数３〜４のオキシアルキレン基とオキシエチレン基の合計に対するオキシエチレン基の割合は１０〜９９質量％である。Ｒは、同一もしくは異なってもよい炭素数１〜４の炭化水素基である。）
（化２）

（式中、Ｒ^３は炭素数１０〜２０の炭化水素基、Ｒ^２またはＲ^４は炭素数１〜４のアルキル基もしくはヒドロキシアルキル基、ｍは平均付加モル数で、０≦ｍ≦１１である。） That is, the liquid detergent composition for kitchen according to the present invention comprises (a) 0.1 to 5% by mass of a block type alkylene oxide derivative represented by the following formula (I), and (b) polyoxyethylene alkyl ether sulfate. It contains 5 to 60% by mass of a salt and (c) 0.1 to 5% by mass of a tertiary amine oxide represented by the following formula (II).
(Chemical formula 1)

(In the formula, Z is a residue obtained by removing a hydroxyl group from dimer diol, EO is an oxyethylene group, AO is an oxyalkylene group having 3 to 4 carbon atoms, and these addition forms are block-like. A, and b is an average addition mole number of the oxyalkylene group and oxyethylene group, respectively, 1 ≦ 2 × a ≦ 150, 1 ≦ 2 × b ≦ 150, and an oxyalkylene group having 3 to 4 carbon atoms and an oxyethylene group (The ratio of the oxyethylene group to the total of is from 10 to 99% by mass. R is the same or different hydrocarbon group having 1 to 4 carbon atoms.)
(Chemical formula 2)

(Wherein R ³ is a hydrocarbon group having 10 to 20 carbon atoms, R ² or R ⁴ is an alkyl group or hydroxyalkyl group having 1 to ⁴ carbon atoms, m is an average added mole number, and 0 ≦ m ≦ 11. is there.)

  In the kitchen liquid detergent composition, in the block-type alkylene oxide derivative represented by the formula (I), AO is preferably an oxybutylene group.

  According to the present invention, by simultaneously blending a block type alkylene oxide derivative having a specific structure with a polyoxyethylene alkyl ether sulfate ester salt and a tertiary amine oxide, the skin-irritating property is low, and it is easy to clean oil stains. In addition, it is possible to obtain a very useful kitchen liquid detergent composition having excellent foam persistence, good rinsing properties when washed off, and excellent feeling after use, particularly refreshing feeling.

Hereinafter, preferred embodiments of the present invention will be described.
The liquid detergent composition for kitchen according to the present invention comprises (a) a block-type alkylene oxide derivative having a specific structure, (b) a polyoxyethylene alkyl ether sulfate ester salt, and (c) a tertiary amine having a specific structure. Each contains a specific amount of oxide. Hereinafter, the essential components will be described in detail.

(A) Block-type alkylene oxide derivative In the present invention, a block-type alkylene oxide derivative represented by the following formula (I) can be applied.
The liquid detergent composition for kitchen concerning this invention contains the block type alkylene oxide derivative shown by following formula (I).
(Chemical formula 1)

In the alkylene oxide derivative represented by the formula (I), Z is a residue obtained by removing a hydroxyl group from dimer-diol, and EO is an oxyethylene group having 2 carbon atoms. AO is an oxyalkylene group having 3 to 4 carbon atoms, and examples thereof include an oxypropylene group, an oxybutylene group, an oxyisobutylene group, and an oxy t-butylene group. Preferably, it is an oxypropylene group, an oxybutylene group, and more preferably an oxybutylene group. These additional forms are block-shaped.
a and b are the average addition mole number of the said oxyethylene group and an oxyalkylene group, respectively, 1 <= 2 * a <= 150, 1 <= 2 * b <= 150. Preferably 2 ≦ 2 × a ≦ 150, 2 ≦ 2 × b ≦ 150, more preferably 2 ≦ 2 × a ≦ 120, 10 ≦ 2 × b ≦ 130. When 2 × a is 0 and 2 × a exceeds 150, when blended in a kitchen detergent composition, the refreshing feeling after use tends to be inferior. When 2 × b is 0, the skin irritation tends to be inferior, and when it exceeds 150, the refreshing feeling after use tends to be inferior.

The ratio of EO to the total of AO and EO in the formula (I) is 10 to 99% by mass, preferably 20 to 70% by mass. If it is less than 10% by mass, the skin irritation tends to be inferior.
The addition form of the oxyethylene group and the oxyalkylene group having 3 to 4 carbon atoms is block-like, and the addition order is bonded to the dimer diol in the order of AO and EO.

  R is an indispensable condition for improving the feeling of use, and is a hydrocarbon group having 1 to 4 carbon atoms, and examples of the hydrocarbon group include a methyl group, an ethyl group, an N-propyl group, an isopropyl group, and an N-butyl group. , Sec-butyl group, tert-butyl group, and mixed groups thereof. In the present invention, a methyl group and an ethyl group are preferable. When the carbon number is larger than 5, the foamability tends to be inferior.

In the alkylene oxide derivative represented by the formula (I), Z is a residue obtained by removing a hydroxyl group from dimer diol. Here, the dimer diol is a diol obtained by reducing dimer acid.
The dimer acid used as a raw material for the dimer diol used in the present invention is a dimer obtained by polymerizing an unsaturated fatty acid or a lower alcohol ester thereof. Specifically, it can be synthesized by a method of reacting an unsaturated fatty acid such as oleic acid, linoleic acid or linolenic acid or an ester of these lower alcohols by thermal polymerization such as Diels-Alder reaction, or other reaction methods. Any unreacted fatty acid may remain in the generated dimer acid as long as the effects of the present invention are not impaired.
The dimer acid is preferably a dimerized unsaturated fatty acid having 12 to 24 carbon atoms or a lower alcohol ester thereof. Such unsaturated fatty acids include myristoleic acid, palmitoleic acid, oleic acid, elaidic acid, vaccenic acid, gadoleic acid, erucic acid, nervonic acid, linoleic acid, linolenic acid and their lower alcohols having 1 to 3 carbon atoms. Examples of such an ester include an unsaturated fatty acid having 18 carbon atoms, and oleic acid or a lower alcohol ester is particularly preferable.
As dimer diol, those derived from animal fats and oils and vegetable fats and oils are distributed, and both can be used in the present invention, but those derived from vegetable fats and oils are more preferable. Examples of such dimer diols include Cognis Japan's Sovermol 908, Unikema's PRIPOL 2033, Toagosei Co., Ltd. PESPOL HP-1000, and the like.

Specific examples of the alkylene oxide derivative blended in the liquid detergent composition for kitchen according to the present invention include POB (25) POE (34) dimethyl dimer-diol ether, POB (25) POE (35) dimethyl dimer. Diol ether, POB (4) POE (13) dimethyl dimer-diol ether, POB (25) POE (52) dimethyl dimer-diol ether, POB (18) POE (41) dimethyl dimer-diol ether, POB (18) POE (41) Diethyl dimer-diol ether, POB (18) POE (41) dipropyl dimer-diol ether, POB (18) POE (41) dibutyl dimer-diol ether, POB (11) POE (30) dimethyl dimer-diol ether, POB (15) OE (45) dimethyl dimer-diol ether, POB (18) POE (50) dimethyl dimer-diol ether, POB (21) POE (56) dimethyl dimer-diol ether, POB (12) POE (50) dimethyl dimer-diol Ether, POB (18) POE (61) dimethyl dimer-diol ether, POB (3) POE (40) dimethyl dimer-diol ether, POB (6) POE (82) dimethyl dimer-diol ether, POB (40) POE ( 120) dimethyl dimer-diol ether, POB (100) POE (40) dimethyl dimer-diol ether, POE (35) POP (30) dimethyl dimer-diol ether, POE (52) POP (30) dimethyl dimer-diol ether, etc. Is mentioned.
The POE, POB, and POP are abbreviations for polyoxyethylene, polyoxybutylene, and polyoxypropylene, respectively, and may be abbreviated as follows.

  The block-type alkylene oxide derivative blended in the liquid detergent composition for kitchen according to the present invention can be produced by a known method. For example, it is obtained by subjecting dimer diol to addition polymerization of alkylene oxide having 3 to 4 carbon atoms and ethylene oxide in this order, and then subjecting an alkyl halide to ether reaction in the presence of an alkali catalyst.

  As a compounding quantity of the block-type alkylene oxide derivative obtained as mentioned above, it is preferable that it is 0.1-5 mass% with respect to the liquid cleaning composition composition for kitchens concerning this invention, More preferably, it is 1 0.0-3 mass%. If the blending amount is less than 0.1% by mass, the skin irritation may not be sufficiently reduced. If the blending amount exceeds 3% by mass, the refreshing feeling after washing tends to be inferior.

(B) Polyoxyethylene alkyl ether sulfate ester salt The polyoxyethylene alkyl ether sulfate ester salt that can be applied to the present invention is preferably one or two or more of 8 to 20 carbon atoms, and has 12 carbon atoms. More preferred are those of ˜18. When the carbon number of the alkyl group is smaller than 8, the cleaning property may be inferior. When the carbon number exceeds 20, the rinsing property and the refreshing feeling after the cleaning may be inferior.

  In the present invention, the polyoxyethylene alkyl ether sulfate ester salt is preferably neutralized with a basic compound. Examples of the basic compound include alkali metal ions such as sodium and potassium, amine substances such as triethanolamine, and basic amino acids such as lysine. Neutralization with an alkali metal is particularly preferable.

  As a compounding quantity of the said polyoxyethylene alkyl ether sulfate ester salt in the liquid cleaning composition for kitchens concerning this invention, it is preferable that it is 5-60 mass% with respect to the composition whole quantity, More preferably, it is 3-30. % By mass. If the blending amount is less than 5% by mass, the detergency against oil stains may not be sufficient, and if it exceeds 60% by mass, the skin irritation tends to be inferior, which is not preferable.

(C) Tertiary amine oxide In the present invention, a tertiary amine oxide represented by the following formula (II) can be applied.
(Chemical formula 2)

In the tertiary amine oxide represented by the formula (II), R ³ is a hydrocarbon group having 10 to 20 carbon atoms, more preferably a hydrocarbon group having 12 to 18 carbon atoms. Examples of such hydrocarbon groups include linear or branched saturated hydrocarbon groups such as decyl group, dodecyl group, tridecyl group, tetradecyl group, hexadecyl group, and isostearyl group, oleyl group, and linole group. Examples thereof include mixed hydrocarbon groups such as unsaturated hydrocarbon groups, coconut oil alkyl groups, and beef tallow alkyl groups, and these can be used alone or in combination.
When the carbon number of R ³ is smaller than 10, the skin irritation may be inferior, and when the carbon number exceeds 20, the rinsing property and the refreshing feeling after washing may be inferior.

R ² and R ⁴ are an alkyl group having 1 to ⁴ carbon atoms or a hydroxyalkyl group. Examples of such alkyl group or hydroxyalkyl group include methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, hydroxymethyl group, hydroxyethyl group, hydroxypropyl group, hydroxyisopropyl group, hydroxybutyl group, etc. In particular, a methyl group, an ethyl group, a hydroxyethyl group, a hydroxypropyl group, and a hydroxyisopropyl group are preferable.

m represents the average number of added moles of oxyethylene groups, and 0 ≦ m ≦ 11, preferably 0 ≦ m ≦ 3. When m is larger than 11, the cleaning property and the persistence of foam may be impaired, which is not preferable.
As a compounding quantity of the said 3rd amine oxide in the liquid cleaning composition for kitchens concerning this invention, it is preferable that it is 0.1-5 mass% with respect to the composition whole quantity, More preferably, it is 1-3 mass%. It is. If the blending amount is less than 0.1% by mass, detergency, foam persistence and skin irritation are reduced, and if the blending amount exceeds 5% by mass, rinsing properties and a refreshing feeling after use may be inferior. There is not preferable.

In addition to the above-described essential components (a) to (c), the liquid detergent composition for kitchen according to the present invention is blended with components that are usually blended in the detergent within a range not impairing the effects of the present invention. be able to. That is, the liquid detergent composition for kitchen according to the present invention can be obtained by a method that is usually applied in the production of a detergent composition by appropriately blending the above essential components and the following optional components.
Optional components include, for example, amphoteric surfactants such as alkyl ether alkyl betaines, amide betaines, imidazolinium betaines, sulfobetaines, higher fatty acid alkanolamides, esters of fatty acids and polyhydric alcohols such as fatty acid monoglycerides, glycerin, propylene Polyols such as glycol, 1,3-butylene glycol, polyoxyethylene alkyl ether, polyoxyethylene alkenyl ether, polyoxyethylene fatty acid ester, fatty acid sorbitan ester and its ethylene oxide adduct, polyoxyethylene glycerin fatty acid ester, polyoxy Nonionic surfactant such as ethylene sorbitol fatty acid ester, lower alcohol, polyhydric alcohol, polyethylene glycol, lower aryl sulfonic acid Hydrotropes include citric acid, ethylenediaminetetraacetic acid derivatives, chelating agents such as nitrilotriacetic acid trisodium, sodium benzoate, a preservative such as parahydroxybenzoate esters, anti-inflammatory agents, dyes, perfumes and the like.

  Hereinafter, the present invention will be described more specifically with reference to examples, but the present invention is not limited thereto. The blending amount is expressed in mass% unless otherwise specified.

（Ｚ；炭素数３６のダイマージオール、ＡＯ；オキシブチレン基、２×ａ＝１８、２×ｂ＝４１、Ｒ＝メチル基、ＥＯ５８．２質量％）の合成
ダイマージオール２７０ｇ（０．５０モル、商品名：コグニスジャパン（株）製Ｓｏｖｅｒｍｏｌ ９０８、オレイン酸由来のダイマージオール）と水酸化カリウム７．０ｇをオートクレーブ中に仕込み、オートクレーブ中の空気を乾燥窒素で置換した後、攪拌しながら１４０℃にて触媒を完全に溶解させた。引き続き、１２０℃、０．２〜０．５ＭＰａ（ゲージ圧）にて、滴下装置よりブチレンオキシド６４８ｇを滴下させ、３時間撹拌した。続いて１２０℃、０．２〜０．５ＭＰａ（ゲージ圧）にて滴下装置よりオキシエチレン９０２ｇを滴下させ、２時間攪拌した。次に、水酸化カリウム１００ｇを仕込み、系内を乾燥窒素で置換した後、塩化メチル８０ｇを温度８０〜１３０℃、０．３ＭＰａ（ゲージ圧）にて圧入し６時間反応させた。その後オートクレーブより反応物を取り出し、塩酸で中和してｐＨ６〜７とし、含有する水分を１００℃で１時間処理することで除去した。さらに処理後生成した塩を除去するためにろ過を行い、目的化合物を得た。 Liquid cleaning compositions for kitchens (Test Examples 1 to 10) were prepared by conventional methods with the components and blending amounts shown in Table 1 below, and their characteristics were evaluated.
In addition, what has the following structures was used for the alkylene oxide derivative in a table | surface. When 2 × a = 18 and 2 × b = 41, it is expressed as (BO) ₁₈ (EO) ₄₁ . Synthesis examples of block type alkylene oxide derivatives are shown below.
<Synthesis example>
POB (18) POE (41) Dimethyl dimer diol ether (Chemical formula 3)

(Z: dimer diol having 36 carbon atoms, AO: oxybutylene group, 2 × a = 18, 2 × b = 41, R = methyl group, EO 58.2% by mass) Dimer diol 270 g (0.50 mol, Product name: Cognis Japan Co., Ltd. Sovermol 908, dimer diol derived from oleic acid) and 7.0 g of potassium hydroxide were charged into an autoclave, and the air in the autoclave was replaced with dry nitrogen, and then stirred at 140 ° C. The catalyst was completely dissolved. Subsequently, 648 g of butylene oxide was dropped from a dropping device at 120 ° C. and 0.2 to 0.5 MPa (gauge pressure), and the mixture was stirred for 3 hours. Subsequently, 902 g of oxyethylene was dropped from the dropping device at 120 ° C. and 0.2 to 0.5 MPa (gauge pressure), and the mixture was stirred for 2 hours. Next, after charging 100 g of potassium hydroxide and replacing the system with dry nitrogen, 80 g of methyl chloride was injected at a temperature of 80 to 130 ° C. and 0.3 MPa (gauge pressure) and reacted for 6 hours. Thereafter, the reaction product was taken out from the autoclave, neutralized with hydrochloric acid to pH 6-7, and the contained water was removed by treating at 100 ° C. for 1 hour. Furthermore, in order to remove the salt produced | generated after a process, it filtered and obtained the target compound.

Each evaluation item in Table 1 is based on the following evaluation tests and standards. The evaluation results are also shown in Table 1.
"Evaluation (1): Detergency"
This was carried out in accordance with the lean nut improved washing test method (JIS K-3370 4.9). After washing at 25 ° C. for 3 minutes (250 rpm), rinsing was performed for 1 minute, and the washing rate (%) was determined from the weight before and after washing by the following formula to evaluate the washing power. Washing was performed by diluting with water so that the surfactant concentration of each composition was 300 ppm. In addition, what melt | dissolved beef tallow (10g), soybean oil (10g), monooleic acid glyceride (0.25g), and Sudan III (0.1g) in chloroform 60ml was used as artificial dirt.
Cleaning rate (%) = {(weight of slide glass after cleaning) − (weight of slide glass before adhesion of dirt)} / (amount of dirt attached) × 100
When the value of the detergency is 70% or more, it has a sufficient detergency effect. On the other hand, if less than 70%, the cleaning effect was evaluated as insufficient.
○: Detergency is 70% or more.
X: Detergency is less than 70%.

"Evaluation (2): Sustainability of foam"
20 g of each composition was put into a 200 ml stoppered graduated cylinder, 1 g of salad oil was added thereto, shaken well, and the height of the foam was measured. The amount of salad oil added when the height was 130 mm or less was measured, and ○ was accepted.
○: Even when 3 g or more is added, the height of the foam is 130 mm or more.
X: 2 g or less and the height of the foam is less than 130 mm.

“Evaluation (3): Rinse”
200 ml of an aqueous solution diluted so that the concentration of each composition is 0.075% by mass is adjusted to 25 ° C., put in a cup having a diameter of 65 mm × height of 140 mm, and placed in a miller (IMF-100, manufactured by Iwatani Corporation). Stir for 1 minute. Next, throw away the water of the foamy solution, add 200 ml of water, shake well, and throw away the water. This operation is repeated until the bubbles are completely removed. The number of rinses was measured and evaluated according to the following criteria.
○: Good rinsing properties (up to 2 times)
X: Rinse property is poor (3 times or more)

“Evaluation (4): Refreshing feeling after use”
An actual use test was conducted by 10 professional panelists to determine whether the skin was refreshed after use. The evaluation criteria are as follows. ◎ or ○ was judged to have a refreshing feeling.
◎ ... More than 8 professional panelists recognized that there was a refreshing feeling after use.
○ ... 6 or more and less than 8 professional panelists recognized that there was a refreshing feeling after use.
Δ: 3 or more and less than 6 professional panelists recognized that there was a refreshing feeling after use.
X: Less than 3 professional panelists recognized that there was a refreshing feeling after use.

"Evaluation (5): Skin irritation test"
The obstruction patch for 24 hours was applied to the inner side of the upper arm of 10 panelists, and then the average value was calculated according to the following criteria. ◎ or ○ was judged as having low skin irritation.
0: No abnormality is observed.
1 ... Slight redness is observed.
2… Redness is recognized.
3 ... Redness and papules are observed.
Evaluation criteria for the “skin irritation test” are as follows.
A: Average value of 10 panel members: less than 0.1 A: Average value of 10 panel members: 0.1 or more and less than 0.15 Δ: Average value of 10 panel members: 0.15 or more and less than 0.2 × Panel Average value of 10 people: 0.2 or more

(Table 1)

From the above results, Test Examples 1 to 5, which are the liquid detergent composition for kitchens of the present invention, are excellent in all of cleanability, foam persistence, rinsability, refreshing feeling after use, and skin irritation. It was a thing.
On the other hand, Test Example 6 in which an alkylene oxide derivative having only an oxybutylene group was blended was inferior in terms of foam persistence and rinsing properties. Furthermore, in Test Example 7 in which the terminal of the alkylene oxide derivative is a hydroxyl group, the refreshing feeling after use and the skin irritation were inferior. In Test Example 8 in which the terminal of the alkylene oxide derivative has a hexyl group having 6 carbon atoms, blended with an alkylene oxide derivative which is a dimethyl ether of ethylene oxide and a propylene oxide random copolymer in terms of foam persistence, rinsing and skin irritation Test Example 9 was inferior in foam persistence.
And the test example which mix | blended the linear dodecylbenzenesulfonic acid sodium salt from which the anionic surfactant different from a polyoxyethylene alkyl ether sulfate ester salt is mix | blended even if it mix | blends the block-type alkylene oxide derivative of the specific structure of this invention product In the case of 10, the refreshing feeling after use was inferior.

  Therefore, by the above examination, (a) a block type alkylene oxide derivative having a specific structure, (b) a polyoxyethylene alkyl ether sulfate ester salt, and (c) a tertiary amine oxide having a specific structure are blended in an appropriate amount. It has been found that a liquid detergent composition for kitchen can be obtained which is excellent in cleanability, foam persistence and rinsing properties, has low irritation to the skin, and has an excellent feeling after use, particularly a refreshing feeling.

Claims (2)

(A) 0.1 to 5% by mass of a block-type alkylene oxide derivative represented by the following formula (I),
(B) 5 to 60% by mass of polyoxyethylene alkyl ether sulfate ester salt, and
(C) 0.1 to 5% by mass of a tertiary amine oxide represented by the following formula (II),
A liquid detergent composition for kitchens, comprising:
(Chemical formula 1)

(In the formula, Z is a residue obtained by removing a hydroxyl group from dimer diol, EO is an oxyethylene group, AO is an oxyalkylene group having 3 to 4 carbon atoms, and these addition forms are block-like. A, and b is an average addition mole number of the oxyalkylene group and oxyethylene group, respectively, 1 ≦ 2 × a ≦ 150, 1 ≦ 2 × b ≦ 150, and an oxyalkylene group having 3 to 4 carbon atoms and an oxyethylene group (The ratio of the oxyethylene group to the total of is from 10 to 99% by mass. R is the same or different hydrocarbon group having 1 to 4 carbon atoms.)
(Chemical formula 2)

(Wherein R ³ is a hydrocarbon group having 10 to 20 carbon atoms, R ² or R ⁴ is an alkyl group or hydroxyalkyl group having 1 to ⁴ carbon atoms, m is an average added mole number, and 0 ≦ m ≦ 11. is there.)   The sterilizing composition according to claim 1, wherein AO of the block-type alkylene oxide derivative represented by the formula (I) is an oxybutylene group.