WO2011049045A1 - 非イオン界面活性剤、及びこれを含有する界面活性剤組成物 - Google Patents
非イオン界面活性剤、及びこれを含有する界面活性剤組成物 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/722—Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups
Definitions
- the present invention relates to a nonionic surfactant having a specific hydrophobic chain composition, and further to a surfactant composition containing the same.
- Nonionic surfactants obtained by addition polymerization of aliphatic oxides with aliphatic alcohols in the presence of catalysts in aliphatic alcohols are various detergents, emulsifiers, emulsifiers for emulsion polymerization, dispersants, solubilizers, It is used in a wide range of applications such as penetrants and antifoaming agents.
- nonionic surfactant is known to improve performance such as detergency and emulsification power when combined with other surfactants (J. Am. Oil. Chem. Soc. 62, 1139 (1985)), a lot of techniques have been disclosed for the surfactant composition containing the nonionic surfactant.
- Nonionic surfactants with ethylene oxide added to aliphatic alcohols have a high melting point and easily form a liquid crystal structure when mixed with water or other surfactants, resulting in poor fluidity and separation. Since there are problems, a method for overcoming the above problem by combining ethylene oxide with propylene oxide or butylene oxide has been proposed from the viewpoint of handleability (Japanese Patent Laid-Open No. 50-116384). Furthermore, WO-A 2008/0888647 discloses an alkoxylated nonionic surfactant derived from seed oil. DE-A 3607193 corresponding to US-B 483868 discloses surfactant mixtures comprising ether alcohols with ethylene oxide and / or propylene oxide. DE-A 3634895 corresponding to US-B 4965014 discloses a surfactant mixture comprising an alcohol derivative with ethylene oxide and propylene oxide.
- the present invention relates to a nonionic surfactant represented by the following general formula (1) and a liquid detergent composition containing the nonionic surfactant.
- R represents a saturated straight chain hydrocarbon group having 8 to 18 carbon atoms.
- the content ratio of n-octyl group is 20 to 80 mol%
- the content ratio of n-decyl group is 0 to
- the content of the saturated linear hydrocarbon group having 10 mol% and 12 to 18 carbon atoms is 20 to 80 mol%
- PO represents a propyleneoxy group
- EO represents an ethyleneoxy group
- m represents a propyleneoxy group.
- the average number of moles added represents a number from 0.1 to 5
- n represents the average number of moles added of ethyleneoxy groups and represents a number from 0.5 to 20
- (PO) m and (EO) n are The blocks are joined in this order.
- the present invention provides a nonionic surfactant that achieves performance as a surfactant such as fluidity / stability at the time of blending and detergency, and a liquid detergent composition containing the same.
- the liquid detergent composition of the present invention is preferably for clothing or hard surfaces.
- the nonionic surfactant of the present invention is excellent in fluidity and stability when blended in a liquid detergent composition, and also has excellent detergency when used as a liquid detergent composition.
- the nonionic surfactants of the present invention are detergents for clothing, tableware, plastic, hard surfaces such as metals, body (hands, hair, face wash, etc.), emulsifiers for cosmetics and cosmetics, solubilization, etc. It can be used for the use of agents, wetting / penetrating agents, antifoaming agents, and lubricants.
- Nonionic surfactant represented by general formula (1) The following general formula (1) of the present invention: R—O— (PO) m — (EO) n —H (1)
- the nonionic surfactant represented by is a mixture containing R in the general formula having a different number of carbon atoms in a predetermined amount range.
- R in the general formula (1) is a saturated straight-chain hydrocarbon group having 8 to 18 carbon atoms, and the content of n-octyl group in the hydrocarbon group is 20 to 80 mol%, the activator alone and the liquid From the viewpoint of fluidity when blended in the cleaning composition, it is preferably 20 to 75 mol%, more preferably 30 to 70 mol%, and particularly preferably 40 to 60 mol%.
- the content ratio of n-decyl group is 0 to 10 mol%, and preferably 0 from the viewpoint of detergency and foam quality when blended in a liquid detergent composition. -5 mol%, more preferably 0-1 mol%. From the viewpoint of the effect of the present invention, the smaller the content ratio of the n-decyl group, the better.
- the nonionic surfactant represented by the general formula (1) having an n-decyl group in the hydrocarbon group it is possible to use n-decanol as an impurity contained in the raw material alcohol.
- the general formula (1) having a derived n-decyl group is contained, and the content ratio of the n-decyl group may be 0.01 mol% or more.
- the content of the saturated straight chain hydrocarbon group having 12 to 18 carbon atoms in the saturated straight chain hydrocarbon group having 8 to 18 carbon atoms is 20 to 80 mol%.
- Detergency and foam when blended in a liquid detergent composition From the viewpoint of quality, it is preferably 25 to 75 mol%, more preferably 30 to 70 mol%, particularly preferably 40 to 60 mol%.
- R in the general formula (1) is a saturated straight-chain hydrocarbon group having 8 to 14 carbon atoms from the viewpoints of fluidity when the active agent is used alone, detergency when blended in the liquid detergent composition, and foam quality.
- the content ratio of the n-octyl group and the n-decyl group is such that the above R is a saturated linear hydrocarbon group having 8 to 18 carbon atoms
- the content ratio of the decyl group is the same, and the preferable range of each is also the same as the preferable range described above in which R is 8 to 18 carbon atoms.
- the content of the saturated straight chain hydrocarbon group having 12 to 14 carbon atoms is preferably 20 to 80 mol%, more preferably 25 to 75, from the viewpoint of detergency and foam quality when blended in the liquid detergent composition.
- the mol% more preferably 30 to 70 mol%, particularly preferably 40 to 60 mol%.
- the nonionic surfactant represented by the general formula (1) may include those having a carbon number of R outside the range of 8 to 18 depending on the purity of the aliphatic saturated alcohol used as a production raw material.
- R includes those having less than 8 carbon atoms (for example, 6 to 7 carbon atoms) and those having more than 18 carbon atoms (for example, 19 to 22 carbon atoms) in an amount of 1 mol% or less. You may go out.
- m is the average number of added moles of propyleneoxy groups, which is a number of 0.1 to 5, and is 1 from the viewpoint of fluidity, stability and detergency when blended with a liquid detergent.
- a number of ⁇ 4 is preferred, and a number of 1.5 to 3.5 is more preferred.
- n is the average number of moles of ethyleneoxy group added and is a number of 0.5 to 20, and is 1 from the viewpoint of fluidity, stability and foam quality when blended with a liquid detergent. A number of ⁇ 15 is preferred, and a number of 1.5-12 is more preferred.
- the nonionic surfactant of the general formula (1) can be obtained, for example, by the following production method.
- a method of mixing those produced by the following production method, R Can also be obtained by applying a method of mixing with different carbon numbers.
- Heating, cooling operation, depressurization, pressurization operation are possible, and a general formula of the present invention is applied to a reactor equipped with a raw material inlet, a product outlet, an alkylene oxide and nitrogen inlet tube, a stirring device, a thermometer, and a pressure gauge (1)
- a predetermined amount of an aliphatic alcohol corresponding to R in the mixture is charged, and then solid potassium hydroxide or sodium hydroxide, or an aqueous solution thereof is charged, followed by nitrogen substitution, and a temperature of room temperature to 110 ° C. Dehydrate under reduced pressure in the range.
- a predetermined amount of propylene oxide and ethylene oxide are sequentially introduced and added at 80 to 180 ° C.
- the target component can be obtained by adding an appropriate amount of a known acid to the obtained reaction crude product to neutralize the catalyst.
- the catalyst can be removed using an alkali adsorbent.
- nonionic surfactant of the present invention has a low pour point and excellent emulsifying power, various detergents for clothing and industry, emulsifiers for oils and solvents, emulsifiers for emulsion polymerization, Suitable as a solubilizer, wetting / penetrating agent, antifoaming agent and lubricant.
- the content of the nonionic surfactant represented by the general formula (1) in the liquid detergent composition of the present invention is 0.1 to 50% by mass, preferably 0.5 to 0.5 from the viewpoint of detergency and foam quality. It is 40% by mass, more preferably 1-30% by mass.
- the liquid detergent composition of the present invention is represented by the general formula (1) of the present invention for the purpose of improving the blending stability, foam quality, foaming ability when rinsing, detergency, and emulsification power.
- An ionic surfactant and another surfactant can be used in combination.
- surfactants can be included with surfactants such as nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants.
- anionic surfactant examples include fatty acid salts, alkyl ether carboxylates, alpha sulfo fatty acid ester salts, alkyl benzene sulfonates, alkyl sulfates, alkyl ether sulfate esters, and the like. Specific examples of these include alkyl ammonium salts and alkyl pyridinium salts. Specific examples of amphoteric surfactants include alkylcarboxybetaines, alkylsulfobetaines and alkylamine oxides. Specific examples of other nonionic surfactants include polyoxyalkylene alkyl ethers, alkyl glycosides, sugars.
- the surfactant composition after combining with the nonionic surfactant of the present invention represented by the general formula (1) is represented by the following general formula (2):
- PO represents a propyleneoxy group
- EO represents an ethyleneoxy group
- q and r represent the average added moles of propyleneoxy group and ethyleneoxy group, respectively.
- (PO) q and (EO) r are block-connected in this order.
- the total amount of the surfactant in the liquid detergent composition of the present invention is preferably 0.1 to 90% by mass, more preferably 1 to 80% by mass.
- the ratio of the nonionic surfactant represented by the general formula (1) in the total nonionic surfactant Is preferably 1% by mass or more, more preferably 2% by mass or more, and further preferably 5% by mass or more.
- the liquid detergent composition of the present invention includes, in addition to the above components, higher fatty acids, solvents, known chelating agents, and anti-staining agents such as polyethylene glycol and carboxymethyl cellulose within the scope of solving the problems of the present invention.
- higher fatty acids for example, polyvinyl acetate, vinyl acetate styrene polymer, polystyrene, bleach, enzyme, preservative, inorganic salts, and the like can be contained.
- the liquid detergent composition of the present invention is suitable as a detergent composition for clothing, hard surface, and body (including hair).
- Example 1 Production of Nonionic Surfactant (1)
- a linear saturated alcohol having 8 carbon atoms [trade name: Calcoal 0898, purity 99.6 %, Manufactured by Kao Corporation] 70.9 g
- linear saturated alcohol having 12 carbon atoms [trade name: Calcoal 2098, purity 99.6%, manufactured by Kao Corporation] 70.9 g and linear chain having 14 carbon atoms
- Example 2 Production of Nonionic Surfactant (2)
- 76.6 g of calcoal 0898 and 76.4 g of calcoal 2098 used in Example 1 were used.
- Example 3 Production of Nonionic Surfactant (3)
- 76.6 g of calcole 0898 used in Example 1 and a straight chain having 10 carbon atoms 6.2 g of saturated alcohol [trade name: Calcoal 1098, purity 99.6%, manufactured by Kao Corporation] and 69.2 g of mixed alcohol [C 8 —OH / C 10 ⁇ ] used in Example 1 were used.
- OH / C 12 -OH 58.9 / 3.3.9 / 37.2 (molar ratio)] and 1.1 g of potassium hydroxide, and after dehydration at 110 ° C. and 1.3 kPa for 30 minutes, Nitrogen replacement was performed.
- Comparative Example 2 Production of Nonionic Surfactant (5)
- 1.1 g of potassium hydroxide were added and dehydrated at 110 ° C. and 1.3 kPa for 30 minutes. Then, nitrogen substitution was performed.
- Comparative Example 4 Production of Nonionic Surfactant (7)
- the temperature was raised to 125 ° C., 145.2 g of propylene oxide was introduced, and an addition reaction / aging operation was performed.
- the temperature was raised to 150 ° C., 220.3 g of ethylene oxide was introduced, and an addition reaction / aging operation was performed.
- Examples 4 to 8 and Comparative Example 7 produced nonionic surfactants (A) to (E) and (F), respectively.
- pour point The pour point of the nonionic surfactant was measured by a method based on JIS K-2269.
- Emulsifying power Take 4.0 g of triolein, squalane and oleic acid and 0.4 g of nonionic surfactant as emulsified oil in a graduated test tube, stir with a touch mixer for test tube for 30 seconds, then distilled water After adding 5.6 g and further stirring with a touch mixer for 1 minute, the water separation layer of the emulsion after standing for 2 hours was measured, and the emulsification performance of the nonionic surfactant of the present invention was evaluated by the following formula. .
- Emulsifying power (%) (amount of charged water-amount of water separation) (ml) / amount of charged water (ml) x 100
- Fluidity A nonionic surfactant is mixed with ion-exchanged water so as to reach a target concentration in increments of 10% by mass in the concentration range of 10 to 90% by mass shown in Table 1, and at 1 day at 25 ° C. After standing, the presence or absence of fluidity when tilted was determined visually to evaluate fluidity.
- ⁇ Fluidity
- No fluidity Examples 9 to 16 and Comparative Examples 8 to 14 [Preparation of Liquid Cleaning Composition for Tableware] A liquid detergent composition for tableware was prepared according to the formulation of Table 2, and stability (appearance), foam feel (foam quality), rinsing properties, and detergency were evaluated according to the following methods. The evaluation results are summarized in Table 2.
- a commercially available sponge (Sumitomo 3M Co., Ltd .: Scotch Bright) was impregnated with 1 g of the composition shown in Table 2 and 30 g of tap water and foamed by hand 2-3 times. After that, the model-contaminated tableware was scrubbed, rinsed with tap water, and subjected to sensory evaluation based on the following criteria for the ease with which it was easy to get wet during rinsing. Evaluated by 5 panelists. The average of these evaluation points was determined, and the average score was determined to be 1.5 or more, ⁇ , 1 to less than 1.5 as ⁇ , and less than 1 as shown in Table 2. 2: It takes time to get wet quickly 1: It takes a little time to get wet
- Examples 17 to 24 and Comparative Examples 15 to 21 [Preparation of Liquid Cleaning Composition for Clothing]
- a liquid detergent composition for clothing was prepared according to the formulation shown in Table 3, and the stability (appearance) and detergency were evaluated according to the following methods. The evaluation results are summarized in Table 3.
- a 120 cm ⁇ 40 cm cleaning cloth (wool muslin) was folded in two (60 cm ⁇ 40 cm) and sewn into a cylindrical shape, and a test cloth was prepared in which three artificial dirt cloths were sewn on one side / surface side central portion.
- Washing rate (%) (reflectance after washing ⁇ reflectance before washing) / (reflectance of raw fabric ⁇ reflectivity before washing) ⁇ 100 1: Cleaning rate of 50% or more 2: Cleaning rate of 40% or more and less than 50% 3: Cleaning rate of less than 40% The pH was adjusted using sodium hydroxide and / or sulfuric acid.
Abstract
Description
背景技術
本発明は、下記一般式(1)で表される非イオン界面活性剤と、それを含有する液体洗浄剤組成物に関する。
〔式中、
Rは炭素数8~18の飽和直鎖炭化水素基を示し、該飽和直鎖炭化水素基中、n-オクチル基の含有割合が20~80モル%、n-デシル基の含有割合が0~10モル%、炭素数12~18の飽和直鎖炭化水素基の含有割合が20~80モル%であり、POはプロピレンオキシ基を示し、EOはエチレンオキシ基を示し、mはプロピレンオキシ基の平均付加モル数であって0.1~5の数を示し、nはエチレンオキシ基の平均付加モル数であって0.5~20の数を示し、(PO)mと(EO)nは、この順序でブロック結合している。〕
特開昭50-116384では、配合時の流動性や安定性と、洗浄力や乳化力、泡質等の界面活性剤の性能面を満足できるレベルで両立し得ていないのが実情であり、更なる開発が待ち望まれていた。
本発明の下記一般式(1):
R-O-(PO)m-(EO)n-H (1)
で表される非イオン界面活性剤は、一般式中のRとして異なる炭素数のものを所定量範囲で含有する混合物である。
本発明の効果の観点からn-デシル基の含有割合は少ないほど好ましい。ただし積極的にn-デシル基を炭化水素基に有する一般式(1)で表される非イオン界面活性剤を含有させる意図が無い場合でも、原料アルコール中に含まれる不純物としてのn-デカノールから誘導されたn-デシル基を有する一般式(1)が含有され、n-デシル基の含有割合が0.01モル%以上になることがある。
本発明の液体洗浄剤組成物中の一般式(1)で表される非イオン界面活性剤の含有量は0.1~50質量%、洗浄力及び泡質の観点から好ましくは0.5~40質量%、更に好ましくは1~30質量%である。
R’-O-(PO)q-(EO)r-H (2)
〔式中、R’は飽和直鎖炭化水素基を示し、POはプロピレンオキシ基を示し、EOはエチレンオキシ基を示し、q、rはそれぞれプロピレンオキシ基、エチレンオキシ基の平均付加モル数を示し、(PO)qと(EO)rは、この順序でブロック結合している。〕で表され、かつ一般式(1)で表されなくならないよう、構造、量を選ぶことが、本願発明の課題を解決するためには重要である。
次の実験例は本発明の例示と比較について述べるものであり、 本発明を限定するためではない。
以下に実施例を示す。実施例1~8、比較例1~7において、「Cn」は、炭素数nの飽和直鎖炭化水素基を意味し、「Cn-OH」は、炭素数nの飽和直鎖炭化水素基を有する1級アルコールを示す。
攪拌装置、温度制御装置、自動導入装置を備えたオートクレーブ中に、炭素数8の直鎖飽和アルコール〔商品名:カルコール0898、純度99.6%,花王(株)製〕70.9g、及び炭素数12の直鎖飽和アルコール〔商品名:カルコール2098、純度99.6%、花王(株)製〕70.9g及び炭素数14の直鎖飽和アルコール〔商品名:カルコール4098、純度99.6%、花王(株)製〕15.8gの混合アルコール(C8-OH/C12-OH/C14-OH=54.5/38.1/7.4(モル比))と、水酸化カリウム1.1gを仕込み、110℃、1.3kPaにて30分間脱水を行った後、窒素置換を行った。
攪拌装置、温度制御装置、自動導入装置を備えたオートクレーブ中に、実施例1で用いたカルコール0898を76.6g及びカルコール2098を76.4gの混合アルコール(C8-OH/C12-OH=58.9/41.1(モル比))と、水酸化カリウム1.1gを仕込み、110℃、1.3kPaにて30分間脱水を行った後、窒素置換を行った。
攪拌装置、温度制御装置、自動導入装置を備えたオートクレーブ中に、実施例1で用いたカルコール0898を76.6g、炭素数10の直鎖飽和アルコール〔商品名:カルコール1098、純度99.6%、花王(株)製〕を6.2g及び実施例1で用いたカルコール2098を69.2gの混合アルコール〔C8-OH/C10-OH/C12-OH=58.9/3.9/37.2(モル比)〕と、水酸化カリウム1.1gを仕込み、110℃、1.3kPaにて30分間脱水を行った後、窒素置換を行った。
攪拌装置、温度制御装置、自動導入装置を備えたオートクレーブ中に、実施例1で用いたカルコール0898を76.6g及びカルコール2098を76.4gの混合アルコール(C8-OH/C12-OH=58.9/41.1(モル比))と、水酸化カリウム1.1gを仕込み、110℃、1.3kPaにて30分間脱水を行った後、窒素置換を行った。
攪拌装置、温度制御装置、自動導入装置を備えたオートクレーブ中に、実施例1で用いたカルコール2098を138.9g及びカルコール4098を54.1gの混合アルコール(C12-OH/C14-OH=74.7/25.3(モル比))と、水酸化カリウム1.1gを仕込み、110℃、1.3kPaにて30分間脱水を行った後、窒素置換を行った。
攪拌装置、温度制御装置、自動導入装置を備えたオートクレーブ中に、実施例1または3で用いたカルコール0898を74.0g、カルコール1098を 55.9g及びカルコール2098を14.3gの混合アルコール(C8-OH/C10-OH/C12-OH=53.0/38.8/8.2(モル比))と、水酸化カリウム1.1gを仕込み、110℃、1.3kPaにて30分間脱水を行った後、窒素置換を行った。
攪拌装置、温度制御装置、自動導入装置を備えたオートクレーブ中に、実施例1または3で用いたカルコール0898を47.3g、カルコール1098を55.3g、カルコール2098を39.4g及びカルコール4098を15.8gの混合アルコール(C8-OH/C10-OH/C12-OH/C14-OH=36.4/35.0/21.2/7.4(モル比))と、水酸化カリウム1.1gを仕込み、110℃、1.3kPaにて30分間脱水を行った後、窒素置換を行った。
攪拌装置、温度制御装置、自動導入装置を備えたオートクレーブ中に、実施例1で用いたカルコール0898を76.6g及びカルコール2098を76.4gの混合アルコール(C8-OH/C12-OH=58.9/41.1(モル比))と、水酸化カリウム1.1gを仕込み、110℃、1.3kPaにて30分間脱水を行った後、窒素置換を行った。
攪拌装置、温度制御装置、自動導入装置を備えたオートクレーブ中に、合成アルコール(商品名:SAFOL23(SASOL社製)、炭素数12、13の分岐アルキル基(炭素数12/炭素数13=55/45(モル比)、分岐率(分岐型アルコールの重量組成)50質量%)を有する飽和アルコール)194gと、水酸化カリウム1.1gを仕込み、110℃、1.3kPaにて30分間脱水を行った後、窒素置換を行った。
実施例4~8および比較例7は非イオン界面活性剤(A)~(E)と(F)をそれぞれ製造した。
JIS K-2269に準拠した方法により、非イオン界面活性剤の流動点を測定した。
被乳化油としてトリオレイン、スクアラン及びオレイン酸の4.0g、非イオン界面活性剤0.4gを目盛り付試験管にとり、試験管用タッチミキサーで30秒間攪拌し、次いで、蒸留水5.6gを加えてさらにタッチミキサーで1分間攪拌した後、2時間静置後の乳化物の離水層を測定し、下記式により本発明の非イオン界面活性剤の乳化性能の評価を行った。
乳化力(%)=(仕込水量―離水量)(ml)/仕込水量(ml)×100
非イオン界面活性剤を表1に示す10~90質量%の濃度領域で、10質量%きざみで目的の濃度となるようにイオン交換水と混合し、25℃にて1日静置後、傾けた際の流動性の有無を目視で判定し、流動性の評価を行った。
○:流動性あり
×:流動性無し
表2の処方に従い食器用液体洗浄剤組成物を調製し、下記の方法に従って安定性(外観)、泡の感触(泡質)、すすぎ性、洗浄力を評価した。評価結果をまとめて表2に示す。
洗浄剤組成物40mlを50ml容量の無色透明ガラス瓶に入れて密栓し、0℃にて3日間静置したのち、外観の観察を目視にて行った。評価基準は次の通りである。
〇:均一透明
×:白濁又は分離
市販のスポンジ(住友スリーエム社製:スコッチブライト)に表2の組成物1g及び水道水30gを染み込ませ2~3回手でもみ泡立たせた。この時の泡の感触を5人のパネラーにより下記の基準で評価した。これら評価点の平均を求め、平均点が1.5以上を○、1以上1.5未満を△、1未満を×として判定し、表3に示した。
2:クリーミーな泡の感触で良好な泡立ちである
1:ややきめが粗く壊れやすい泡である
0:きめが粗く壊れやすい泡である
菜種油/牛脂を1/1の質量比で混合し、さらに0.1質量%の色素(スタンレッド)を均一に混ぜ込んだモデル油汚れ1gを陶器製の皿に均一に塗り広げたものをモデル汚染食器とした。
2:すぐにぬるつきがとれる
1:ぬるつきがとれるまでにやや時間がかかる
0:ぬるつきがとれるまでに時間がかかる
市販のスポンジ(住友スリーエム社製:スコッチブライト)に表2の組成物1g及び水道水30gを染み込ませ2~3回手でもみ泡立たせた。これを用いてモデル汚染食器を擦り洗いし、洗浄(食器に付着した色が消えることを目視により確認)できた皿の枚数を求めた。
表3の処方に従い衣料用液体洗浄剤組成物を調製し、下記の方法に従って安定性(外観)、洗浄力を評価した。評価結果をまとめて表3に示す。
洗浄剤組成物40mlを50ml容量の無色透明ガラス瓶に入れて密栓し、0℃にて3日間静置したのち、外観の観察を目視にて行った。評価基準は次の通りである。
〇:均一透明
×:白濁又は分離
四塩化エチレン75Lに、下記に示す組成の有機汚垢を1531.2g、及び同じく下記に示す組成のカーボンペースト240gを加えて10分間超音波分散を行った。この浴中に幅10cmの洗浄布(ウールモスリン)を浸し、汚染後風乾して汚染布とした。この汚染布を10cm×10cmに裁断し、洗浄試験に供した。
綿実油44.8%、コレステロール10.8%、オレイン酸10.8%、パルミチン酸7.8%、セチルアルコール2.0%、固形パラフィン5.1%、流動パラフィン5.1%、(合計86.4質量%) (カーボンペーストの組成)旭カーボンブラック0.2%、綿実湯13.4%(合計13.6質量%)。
JIS K3362:1998記載の衣料用洗浄剤の洗浄力評価方法により、表3に示された各衣料用液体洗浄剤の洗浄力を評価した。衣料用液体洗浄剤の使用濃度を0.83g/Lとした。なお、本試験における洗浄力(洗浄率%)は、表面反射率計にて求めた人工汚垢布の洗浄前後の表面反射率の変化から下記の式に基づいて算出した。
Claims (2)
- 下記一般式(1)で表される非イオン界面活性剤。
R-O-(PO)m-(EO)n-H (1)
〔式中、
Rは炭素数8~18の飽和直鎖炭化水素基を示し、該飽和直鎖炭化水素基中、n-オクチル基の含有割合が20~80モル%、n-デシル基の含有割合が0~10モル%、炭素数12~18の飽和直鎖炭化水素基の含有割合が20~80モル%であり、
POはプロピレンオキシ基を示し、
EOはエチレンオキシ基を示し、
mはプロピレンオキシ基の平均付加モル数であって0.1~5の数を示し、
nはエチレンオキシ基の平均付加モル数であって0.5~20の数を示し、
(PO)mと(EO)nは、この順序でブロック結合している。〕 - 請求項1記載の非イオン界面活性剤を0.1~50質量%含む、液体洗浄剤組成物。
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JP2011537240A JP5694176B2 (ja) | 2009-10-19 | 2010-10-18 | 非イオン界面活性剤、及びこれを含有する界面活性剤組成物 |
CN201080047212.5A CN102575196B (zh) | 2009-10-19 | 2010-10-18 | 非离子表面活性剂、以及含有其的表面活性剂组合物 |
US13/502,859 US8476217B2 (en) | 2009-10-19 | 2010-10-18 | Nonionic surfactant and surfactant composition comprising the same |
EP10824894.9A EP2492337B1 (en) | 2009-10-19 | 2010-10-18 | Nonionic surfactant, and surfactant composition containing same |
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JP2010515805A (ja) * | 2007-01-11 | 2010-05-13 | ダウ グローバル テクノロジーズ インコーポレイティド | アルコキシレート混合物界面活性剤 |
WO2018042823A1 (ja) * | 2016-09-02 | 2018-03-08 | 第一工業製薬株式会社 | ゲル組成物 |
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