JP5422154B2 - Liquid detergent composition - Google Patents
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- JP5422154B2 JP5422154B2 JP2008211387A JP2008211387A JP5422154B2 JP 5422154 B2 JP5422154 B2 JP 5422154B2 JP 2008211387 A JP2008211387 A JP 2008211387A JP 2008211387 A JP2008211387 A JP 2008211387A JP 5422154 B2 JP5422154 B2 JP 5422154B2
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Description
本発明は、液体洗浄剤組成物に関する。 The present invention relates to a liquid detergent composition.
液体洗浄剤組成物として、直鎖アルキル基を有する高級アルコールに酸化エチレンを付加させた高級アルコールエトキシレートが知られているが、低温では液晶構造を容易に形成し、流動性の悪化や分離を起こす。また、高級アルコールエトキシレートを含有する系に、洗浄力を高める等の目的でアルキルベンゼンスルホン酸塩を配合した場合も、同様に流動性の悪化や分離の問題が生じる。 As a liquid detergent composition, a higher alcohol ethoxylate in which ethylene oxide is added to a higher alcohol having a linear alkyl group is known, but at a low temperature, a liquid crystal structure is easily formed, resulting in poor fluidity and separation. Wake up. Further, when an alkylbenzene sulfonate is added to a system containing a higher alcohol ethoxylate for the purpose of increasing the detergency, the fluidity is deteriorated and the separation problem similarly occurs.
前記問題を克服するために、分岐アルキル基を有する高級アルコールエトキシレートが提案されたが、洗浄力の点で直鎖アルコールエトキシレートに劣っていた。 In order to overcome the above problems, higher alcohol ethoxylates having branched alkyl groups have been proposed, but they were inferior to linear alcohol ethoxylates in terms of detergency.
また、炭化水素基に不飽和結合を有する不飽和アルコールエトキシレートは、低温流動性に優れるが、二重結合を有するために洗浄力、安定性が劣る。 Moreover, although the unsaturated alcohol ethoxylate which has an unsaturated bond in a hydrocarbon group is excellent in low-temperature fluidity | liquidity, since it has a double bond, its detergency and stability are inferior.
特許文献１において、溶剤の配合による低温流動性の改良が試みられたが、少なからず界面活性剤自身の性能に影響を与え、また洗浄に関与しない溶剤が混入するので好ましくない。 In Patent Document 1, attempts have been made to improve low-temperature fluidity by blending a solvent, but this is not preferable because it has a considerable influence on the performance of the surfactant itself and a solvent not involved in cleaning is mixed.
また、特許文献２においては、飽和直鎖高級アルコールに酸化エチレンと酸化プロピレンをランダム付加することにより得られる非イオン界面活性剤が提案されたが、これでも満足のいく流動性、洗浄力を有していない。
本発明の課題は、低温での流動性に優れ、かつ高い洗浄力を有する液体洗浄剤組成物を提供することである。 The subject of this invention is providing the liquid detergent composition which is excellent in the fluidity | liquidity in low temperature, and has high detergency.
本発明は、下記一般式（１）で表され、Ｒが、炭素数１１以下の飽和直鎖炭化水素基５〜９５モル％と炭素数１２以上の飽和直鎖炭化水素基５〜９５モル％とから構成される非イオン界面活性剤（ａ）〔以下、（ａ）成分という〕と、アルキルベンゼンスルホン酸及び／又はその塩（ｂ）〔以下、（ｂ）成分という〕とを含有する液体洗浄剤組成物に関する。
Ｒ−Ｏ−（ＰＯ）m−（ＥＯ）n−Ｈ （１）
（式中、Ｒは炭素数６〜２４の飽和直鎖炭化水素基、ＰＯはプロピレンオキシ基、ｍは平均付加モル数で０．１≦ｍ≦１５、ＥＯはエチレンオキシ基、ｎは平均付加モル数で０＜ｎ≦５０を示す。）
The present invention is represented by the following general formula (1), and R is 5 to 95 mol% of a saturated linear hydrocarbon group having 11 or less carbon atoms and 5 to 95 mol% of a saturated linear hydrocarbon group having 12 or more carbon atoms. And a nonionic surfactant (a) [hereinafter referred to as component (a)] and an alkylbenzenesulfonic acid and / or salt thereof (b) [hereinafter referred to as component (b)] The agent composition.
R—O— (PO) m — (EO) n —H (1)
(In the formula, R is a saturated linear hydrocarbon group having 6 to 24 carbon atoms, PO is a propyleneoxy group, m is an average addition mole number, 0.1 ≦ m ≦ 15, EO is an ethyleneoxy group, and n is an average addition. (0 <n ≦ 50 in terms of moles)
本発明の液体洗浄剤組成物は、低温での流動性に優れ、かつ高い洗浄力を有する。 The liquid detergent composition of the present invention is excellent in fluidity at low temperatures and has a high detergency.
＜（ａ）成分＞
（ａ）成分の一般式（１）中のＲは、原料の汎用性、取り扱い性の理由から、炭素数８〜２２が好ましく、より好ましくは炭素数８〜１８、更に好ましくは炭素数８〜１６である。Ｒとしては、直鎖アルキル基が挙げられる。
<(A) component>
R in the general formula (1) of the component (a) preferably has 8 to 22 carbon atoms, more preferably 8 to 18 carbon atoms, and still more preferably 8 to 8 carbon atoms, because of the versatility and handling properties of the raw materials. 16. Examples of R include a linear alkyl group.
（ａ）成分は、低温での流動性や洗浄力といった性能面から、Ｒが、炭素数１１以下の飽和直鎖炭化水素基（以下、単に短鎖アルキル基と表記する場合がある）１０〜９０モル％と炭素数１２以上の飽和直鎖炭化水素基（以下、単に長鎖アルキル基と表記する場合がある）１０〜９０モル％とから、更に短鎖アルキル基２０〜８０モル％と長鎖アルキル基２０〜８０モル％とから、更に短鎖アルキル基３０〜７０モル％と長鎖アルキル基３０〜７０モル％とから構成されることが好ましい。 Component (a) is a saturated straight-chain hydrocarbon group having 11 or less carbon atoms (hereinafter sometimes simply referred to as a short-chain alkyl group) 10 to 10 in terms of performance such as fluidity and detergency at low temperatures. From 90 mol% and 10 to 90 mol% of a saturated straight chain hydrocarbon group having 12 or more carbon atoms (hereinafter sometimes simply referred to as a long-chain alkyl group), a short chain alkyl group of 20 to 80 mol% is further long. It is preferably composed of 20 to 80 mol% of chain alkyl groups, and further 30 to 70 mol% of short chain alkyl groups and 30 to 70 mol% of long chain alkyl groups.
また、（ａ）成分のＲは上記構成比を満たした上で、短鎖アルキル基と長鎖アルキル基のモル比が、短鎖アルキル基／長鎖アルキル基＝１／９〜９／１、更に１／４〜４／１、更に３／７〜７／３であることが好ましい。 Moreover, after satisfy | filling the said structural ratio, R of (a) component WHEREIN: The molar ratio of a short chain alkyl group and a long chain alkyl group is short chain alkyl group / long chain alkyl group = 1 / 9-9 / 1, Further, it is preferably 1/4 to 4/1, and more preferably 3/7 to 7/3.
また、（ａ）成分の長鎖アルキル基中、炭素数１２の飽和直鎖炭化水素基（Ｒ12）と炭素数１３以上の飽和直鎖炭化水素基（ＲA）のモル比が、Ｒ12／ＲA＝５／９５〜９５／５であることが、洗浄力の観点から好ましく、Ｒ12／ＲA＝１０／９０〜９０／１０、更に２０／８０〜８０／２０、更に３０／７０〜７０／３０、更に４０／６０〜６０／４０が好ましい。 In addition, the molar ratio of the saturated straight chain hydrocarbon group (R 12 ) having 12 carbon atoms and the saturated straight chain hydrocarbon group (R A ) having 13 or more carbon atoms in the long chain alkyl group of component (a) is R 12. / R A = 5/95 to 95/5 is preferable from the viewpoint of detergency, and R 12 / R A = 10/90 to 90/10, further 20/80 to 80/20, and further 30/70. ~ 70/30, more preferably 40 / 60-60 / 40.
また、（ａ）成分は、Ｒにおける特定炭素数の化合物の個々の比率が４０モル％以下であることが好ましく、より好ましくは３５モル％以下である。従って、（ａ）成分は、Ｒとして、炭素数の異なる化合物を３つ以上含むことが好ましい。 Moreover, as for (a) component, it is preferable that each ratio of the compound of the specific carbon number in R is 40 mol% or less, More preferably, it is 35 mol% or less. Therefore, the component (a) preferably contains three or more compounds having different carbon numbers as R.
また、一般式（１）中、ｍのＰＯの平均付加モル数は、洗浄力といった性能面から、０．２〜１０が好ましく、より好ましくは０．５〜５である。 In general formula (1), the average added mole number of m PO is preferably 0.2 to 10, more preferably 0.5 to 5, from the viewpoint of performance such as detergency.
また、一般式（１）中、ｎのＥＯの平均付加モル数は、低温での流動性といった性能面から、３〜３０が好ましく、より好ましくは４〜２０、更に好ましくは５〜１５である。 In addition, in the general formula (1), the average added mole number of EO of n is preferably from 3 to 30, more preferably from 4 to 20, and still more preferably from 5 to 15 from the viewpoint of fluidity at low temperatures. .
また、ｍ／ｎ（平均付加モル数の比）は１／１５０〜１０／３、更に１／４０〜５／４、より更に１／３０〜１／１が好ましい。 Further, m / n (ratio of average added mole number) is preferably 1/150 to 10/3, more preferably 1/40 to 5/4, and even more preferably 1/30 to 1/1.
（ａ）成分は、例えば、脂肪族飽和直鎖アルコールにプロピレンオキサイドを付加させた後に、更にエチレンオキサイドを付加させて得ることができ、この順序でブロック付加していること、且つ炭化水素基Ｒが、炭素数１１以下の短鎖アルキル基と炭素数１２以上の長鎖アルキル基の混合であることを必須とする。これにより、本発明の液体洗浄剤組成物では、低温での良好な流動性、高い洗浄力が実現できる。 The component (a) can be obtained, for example, by adding propylene oxide to an aliphatic saturated linear alcohol and further adding ethylene oxide, and block addition in this order, and hydrocarbon group R However, it is essential that it is a mixture of a short-chain alkyl group having 11 or less carbon atoms and a long-chain alkyl group having 12 or more carbon atoms. Thereby, in the liquid cleaning composition of this invention, the favorable fluidity | liquidity in low temperature and high detergency can be implement | achieved.
（ａ）成分は、アルキレンオキサイド付加体の分布が広くなり、本発明の効果を得るためにより好ましい化合物が得られることから、アルキレンオキサイド付加反応において、アルカリ触媒を使用することが好ましい。すなわち、（ａ）成分は、アルカリ触媒存在下で、原料化合物（脂肪族飽和直鎖アルコール、及びそのプロピレンオキサイド付加物）にアルキレンオキサイドを付加する工程を含む製造方法により得られたものが好ましい。アルカリ触媒としては、水酸化カリウム、水酸化ナトリウムなどのアルカリ金属の水酸化物、及びトリエチルアミンなどのアミン化合物などが挙げられる。更に好適な触媒量は反応粗製物（全仕込み量）当たり０．００５〜１．５重量％（固形分換算）、より好ましくは０．０２〜１．２重量％（固形分換算）の範囲である。 As the component (a), the distribution of the alkylene oxide adduct is broadened, and a more preferable compound is obtained for obtaining the effects of the present invention. Therefore, it is preferable to use an alkali catalyst in the alkylene oxide addition reaction. That is, the component (a) is preferably obtained by a production method including a step of adding an alkylene oxide to a raw material compound (aliphatic saturated linear alcohol and its propylene oxide adduct) in the presence of an alkali catalyst. Examples of the alkali catalyst include alkali metal hydroxides such as potassium hydroxide and sodium hydroxide, and amine compounds such as triethylamine. A more preferable amount of catalyst is within a range of 0.005 to 1.5% by weight (in terms of solid content), more preferably 0.02 to 1.2% by weight (in terms of solid content) per reaction crude product (total amount charged). is there.
（ａ）成分の製造条件を以下に示すが、これに限定されるものではない。 (A) Although the manufacturing conditions of a component are shown below, it is not limited to this.
加熱、冷却操作、減圧、加圧操作が可能で、原料仕込口、製品取り出し口、アルキレンオキサイド及び窒素の導入管、撹拌装置、温度計、圧力計を備えた反応器に、上記に列挙した本発明に好適に使用できる脂肪族アルコールの所定量を仕込み、次いで、固形状の水酸化カリウムあるいは水酸化ナトリウム、もしくはそれらの水溶液を仕込んだ後、窒素置換し、常温から１１０℃の温度範囲で減圧脱水する。次いで、８０〜１８０℃で所定量のアルキレンオキサイド（プロピレンオキサイド、次いでエチレンオキサイド）を導入、付加させる。アルキレンオキサイドの付加反応操作において、所定量のアルキレンオキサイドを導入後、圧力が低下して一定になるまで反応を継続する操作（熟成操作）を行うことがより好ましい。更に、得られた反応粗製物に対して公知の酸の適当量を添加して触媒を中和し、目的の（ａ）成分を得ることができる。なお、中和操作において、アルカリ吸着剤を使用して、触媒を除去することも可能である。 Heating, cooling operation, depressurization, pressurization operation are possible, and the above-listed reactors are equipped with a raw material inlet, a product outlet, an alkylene oxide and nitrogen inlet tube, a stirrer, a thermometer, and a pressure gauge. A predetermined amount of an aliphatic alcohol that can be suitably used in the invention is charged, and then solid potassium hydroxide or sodium hydroxide, or an aqueous solution thereof is charged, and then purged with nitrogen, and the pressure is reduced in a temperature range from room temperature to 110 ° C. Dehydrate. Next, a predetermined amount of alkylene oxide (propylene oxide and then ethylene oxide) is introduced and added at 80 to 180 ° C. In the alkylene oxide addition reaction operation, after introducing a predetermined amount of alkylene oxide, it is more preferable to perform an operation (aging operation) for continuing the reaction until the pressure decreases and becomes constant. Furthermore, the target (a) component can be obtained by adding an appropriate amount of a known acid to the obtained reaction crude product to neutralize the catalyst. In the neutralization operation, it is also possible to remove the catalyst using an alkali adsorbent.
すなわち、本発明の（ａ）成分は、例えば上記の方法に準じて、アルカリ触媒の存在下、下記一般式（１’）で表される脂肪族飽和直鎖アルコール（短鎖アルキル基と長鎖アルキル基が本発明の条件を満たすもの）に、プロピレンオキサイドを付加して、下記一般式（１’’）で表される化合物を製造し、次いで、これにエチレンオキサイドを付加して得ることができる。
Ｒ−Ｏ−Ｈ （１’）
（式中、Ｒは炭素数６〜２４の飽和直鎖炭化水素基を示す。）
Ｒ−Ｏ−（ＰＯ）m−Ｈ （１’’）
（式中、Ｒは炭素数６〜２４の飽和直鎖炭化水素基、ＰＯはプロピレンオキシ基、ｍは平均付加モル数で０．１≦ｍ≦１５を示す。）
That is, the component (a) of the present invention is an aliphatic saturated linear alcohol (short chain alkyl group and long chain) represented by the following general formula (1 ′) in the presence of an alkali catalyst, for example, according to the above method. Propylene oxide is added to an alkyl group that satisfies the conditions of the present invention to produce a compound represented by the following general formula (1 ″), and then ethylene oxide is added thereto. it can.
R-O-H (1 ')
(In the formula, R represents a saturated linear hydrocarbon group having 6 to 24 carbon atoms.)
R—O— (PO) m —H (1 ″)
(In the formula, R is a saturated straight-chain hydrocarbon group having 6 to 24 carbon atoms, PO is a propyleneoxy group, and m is an average added mole number, and 0.1 ≦ m ≦ 15.)
＜（ｂ）成分＞
（ｂ）成分のアルキルベンゼンスルホン酸及び／又はその塩としては、洗剤用界面活性剤市場に一般に流通しているものの中で、アルキル鎖の炭素数が８〜１６のものであればいずれも用いることができる。例えば花王（株）製のネオペレックスＧＳ−Ｐ、ネオペレックスＦ２５、Ｓｈｅｌｌ社製のＤｏｂｓ１０２等を用いることができる。また、アルキル基は洗浄力の観点から炭素数１０〜１４が好ましい。更に生分解性の観点から、アルキル基は直鎖であることが好ましい。塩は、ナトリウム塩、カリウム塩等のアルカリ金属塩、モノエタノールアミン等のアルカノールアミン塩が好ましい。
<(B) component>
As the component (b), an alkylbenzenesulfonic acid and / or a salt thereof, any one having an alkyl chain having 8 to 16 carbon atoms is generally used in the detergent surfactant market. Can do. For example, Neo-Perex GS-P manufactured by Kao Corporation, Neo-Perex F25, Dobs 102 manufactured by Shell, etc. can be used. The alkyl group preferably has 10 to 14 carbon atoms from the viewpoint of detergency. Further, from the viewpoint of biodegradability, the alkyl group is preferably a straight chain. The salt is preferably an alkali metal salt such as sodium salt or potassium salt, or an alkanolamine salt such as monoethanolamine.
＜液体洗浄剤組成物＞
本発明の液体洗浄剤組成物は、（ａ）成分を、１〜８０重量％、更に３〜７０重量％含有することが好ましい。また、（ｂ）成分を、１〜８０重量％、更に３〜７０重量％含有することが好ましい。残部は水である。なお、本発明では、（ｂ）成分の量に関する記述は、酸型の化合物に換算した量に基づくものとする。衣料用液体洗浄剤組成物とする場合、（ａ）成分の含有量は１〜７０重量％、更に２〜６０重量％が好ましく、（ｂ）成分の含有量は１〜７０重量％、更に２〜６０重量％が好ましく、２０℃におけるｐＨは４〜１３、更に５〜１２が好ましい。また、食器やプラスチック、金属等の硬質表面用液体洗浄剤組成物とする場合、（ａ）成分の含有量は１〜６０重量％、更に２〜５０重量％が好ましく、（ｂ）成分の含有量は１〜６０重量％、更に２〜５０重量％が好ましく、２０℃におけるｐＨは３〜１３が好ましく、４〜１２がより好ましい。更に衣料を手洗いするための組成物等、軽質衣料用液体洗浄剤組成物とする場合、ｐＨは４〜１１が好ましく、５〜９がより好ましい。
<Liquid cleaning composition>
The liquid detergent composition of the present invention preferably contains 1 to 80% by weight, more preferably 3 to 70% by weight of component (a). Moreover, it is preferable to contain (b) component 1-80 weight%, and also 3-70 weight%. The balance is water. In the present invention, the description regarding the amount of the component (b) is based on the amount converted to the acid type compound. When the liquid detergent composition for clothing is used, the content of the component (a) is preferably 1 to 70% by weight, more preferably 2 to 60% by weight, and the content of the component (b) is 1 to 70% by weight, and further 2 -60 wt% is preferable, and the pH at 20 ° C is preferably 4-13, more preferably 5-12. Moreover, when setting it as the liquid detergent composition for hard surfaces, such as tableware, a plastic, and a metal, content of (a) component is 1 to 60 weight%, Furthermore, 2 to 50 weight% is preferable, (b) Inclusion of component The amount is preferably 1 to 60% by weight, more preferably 2 to 50% by weight, and the pH at 20 ° C. is preferably 3 to 13, more preferably 4 to 12. Furthermore, when setting it as the liquid cleaning composition for light clothings, such as a composition for washing clothes by hand, 4-11 are preferable and, as for pH, 5-9 are more preferable.
本発明の液体洗浄剤組成物は、（ａ）成分の配合割合が、（ａ）成分及び（ｂ）成分の合計量の１０〜９０モル％、すなわち、［〔（ａ）成分の配合量〕／〔（ａ）成分の配合量＋（ｂ）成分の配合量〕］×１００が１０〜９０モル％であることが好ましい。この割合は、１５〜８５モル％であることがより好ましく、更に好ましくは２０〜８０モル％、より更に好ましくは２５〜６０モル％、特に好ましくは３０〜５０モル％である。 In the liquid detergent composition of the present invention, the blending ratio of the component (a) is 10 to 90 mol% of the total amount of the component (a) and the component (b), that is, [[the blending amount of the component (a)]. / [(A) component blending amount + (b) component blending amount]] × 100 is preferably 10 to 90 mol%. This ratio is more preferably 15 to 85 mol%, further preferably 20 to 80 mol%, still more preferably 25 to 60 mol%, and particularly preferably 30 to 50 mol%.
本発明の液体洗浄剤組成物には、上記必須成分の他に、本発明の効果を阻害しない範囲内で、高級脂肪酸、溶剤、公知のキレート剤、再汚染防止剤として、例えばポリエチレングリコール、カルボキシメチルセルロース等、乳濁剤として、例えばポリ酢酸ビニル、酢酸ビニルスチレン重合体、ポリスチレンなどを配合する事ができる。更にｐＨを調整するために水酸化ナトリウム、水酸化カリウム、アルカノールアミン、硫酸、塩酸等を使用できる。また、公知の増粘剤、漂白剤、酵素、防腐剤などを配合することもできる。更に、洗浄力などを更に向上させるために（ａ）成分以外の非イオン界面活性剤、（ｂ）成分以外の陰イオン界面活性剤、陽イオン界面活性剤、両性界面活性剤などと組み合わせることもできる。なお、他の非イオン界面活性剤を含有する場合、全非イオン界面活性剤中、（ａ）成分の比率は１〜１００重量％、更に１０〜１００重量％が好ましく、特に３０〜１００重量％が好ましい。また、全界面活性剤中、（ａ）成分の比率は１〜９５重量％、更に５〜９０重量％が好ましく、（ｂ）成分の比率は１〜９５重量％、更に５〜９０重量％が好ましい。 The liquid detergent composition of the present invention includes, in addition to the above essential components, higher fatty acids, solvents, known chelating agents, and anti-staining agents such as polyethylene glycol, carboxy, and the like within the range not inhibiting the effects of the present invention. As an emulsion such as methylcellulose, for example, polyvinyl acetate, vinyl acetate styrene polymer, polystyrene or the like can be blended. Further, sodium hydroxide, potassium hydroxide, alkanolamine, sulfuric acid, hydrochloric acid or the like can be used to adjust the pH. In addition, known thickeners, bleaches, enzymes, preservatives and the like can be blended. Further, in order to further improve the detergency, etc., it may be combined with a nonionic surfactant other than component (a), an anionic surfactant other than component (b), a cationic surfactant, an amphoteric surfactant, and the like. it can. In addition, when other nonionic surfactant is contained, the ratio of the component (a) in the total nonionic surfactant is preferably 1 to 100% by weight, more preferably 10 to 100% by weight, and particularly 30 to 100% by weight. Is preferred. Further, in the total surfactant, the ratio of the component (a) is 1 to 95% by weight, more preferably 5 to 90% by weight, and the ratio of the component (b) is 1 to 95% by weight, and further 5 to 90% by weight preferable.
本発明の液体洗浄剤組成物は、衣料用、食器やプラスチック、金属等の硬質表面用、身体（手指、毛髪、洗顔等）用、更に、香粧や化粧用等として用いることができる。 The liquid detergent composition of the present invention can be used for apparel, for hard surfaces such as tableware, plastics and metals, for the body (hands, hair, face wash, etc.), and for cosmetics and cosmetics.
本発明の液体洗浄剤組成物は、５℃における粘度が、移送時・配合時のハンドリング性の観点から、２００ｍＰａ・ｓ以下であることが好ましく、より好ましくは１５０ｍＰａ・ｓ以下、更に好ましくは１００ｍＰａ・ｓ以下である。この粘度は後述の実施例の方法で測定されたものである。 In the liquid detergent composition of the present invention, the viscosity at 5 ° C. is preferably 200 mPa · s or less, more preferably 150 mPa · s or less, still more preferably 100 mPa, from the viewpoint of handling properties at the time of transfer and blending. -S or less. This viscosity is measured by the method of Examples described later.
１．非イオン界面活性剤の合成
（１）本発明品の合成
炭素数１０の飽和直鎖アルコール１５８ｇ、炭素数１２の飽和直鎖アルコール４００ｇ、炭素数１４の飽和直鎖アルコール３９０ｇ、炭素数１６の飽和直鎖アルコール１０５ｇの混合アルコール（モル比１８．５：３９．８：３３．７：８）及びＫＯＨ３．０ｇを攪拌装置、温度制御装置、自動導入装置を備えたオートクレーブに仕込み、１１０℃、１．３ｋＰａにて３０分間脱水を行った。脱水後窒素置換を行い、１２０℃まで昇温した後、プロピレンオキサイドを６２６ｇ仕込んだ。１２０℃にて付加反応・熟成を行い、プロポキシレートを得た。次いで、１２０℃にてエチレンオキサイドを２３７６ｇ仕込んだ。１２０℃にて付加反応・熟成を行った。その後、８０℃まで冷却した後、３．３ｇの酢酸をオートクレーブ内に加え、８０℃で３０分間攪拌した後、抜き出しを行い、本発明の非イオン界面活性剤（１）［一般式（１）においてＲ：Ｃ１０／Ｃ１２／Ｃ１４／Ｃ１６＝１８．５／３９．８／３３．７／８（モル比、また、「Ｃｎ」は、炭素数ｎの飽和直鎖炭化水素基を意味する、以下同様）、ｍ＝２、ｎ＝１０］を得た。
1. Synthesis of nonionic surfactant (1) Synthesis of the product of the present invention 158 g of saturated linear alcohol having 10 carbon atoms, 400 g of saturated linear alcohol having 12 carbon atoms, 390 g of saturated linear alcohol having 14 carbon atoms, saturation of 16 carbon atoms A mixed alcohol (molar ratio: 18.5: 39.8: 33.7: 8) of 105 g of linear alcohol and 3.0 g of KOH were charged into an autoclave equipped with a stirrer, a temperature controller, and an automatic introduction device. Dehydration was performed at 3 kPa for 30 minutes. After dehydration, nitrogen substitution was performed, and after raising the temperature to 120 ° C., 626 g of propylene oxide was charged. Addition reaction and aging were performed at 120 ° C. to obtain propoxylate. Next, 2376 g of ethylene oxide was charged at 120 ° C. Addition reaction and aging were performed at 120 ° C. Then, after cooling to 80 ° C., 3.3 g of acetic acid was added to the autoclave, and the mixture was stirred at 80 ° C. for 30 minutes, and then extracted to obtain the nonionic surfactant (1) [general formula (1) of the present invention. R: C10 / C12 / C14 / C16 = 18.5 / 39.8 / 33.7 / 8 (molar ratio, “Cn” means a saturated straight-chain hydrocarbon group having n carbon atoms, Similarly, m = 2, n = 10].
同様の操作にて、以下の非イオン界面活性剤を合成した。
非イオン界面活性剤（２）；一般式（１）において、Ｒ：Ｃ８／Ｃ１０／Ｃ１２／Ｃ１４／Ｃ１６／Ｃ１８＝７．４／１８．１／３９／２４．１／７．９／３．５、ｍ＝１．５、ｎ＝７の非イオン界面活性剤
非イオン界面活性剤（３）；一般式（１）において、Ｒ：Ｃ８／Ｃ１０／Ｃ１２／Ｃ１４／Ｃ１６＝１４．１／２３．２／２９．５／２５．７／７．５、ｍ＝２、ｎ＝９の非イオン界面活性剤
非イオン界面活性剤（４）；一般式（１）において、Ｒ：Ｃ８／Ｃ１０／Ｃ１２／Ｃ１４／Ｃ１６＝７／１７．４／５９／１２．８／３．８、ｍ＝１、ｎ＝１０の非イオン界面活性剤
非イオン界面活性剤（５）；一般式（１）において、Ｒ：Ｃ８／Ｃ１０／Ｃ１２／Ｃ１４／Ｃ１６＝１４．２／１１．７／４９．７／１２．９／１１．５、ｍ＝１．５、ｎ＝１０の非イオン界面活性剤
The following nonionic surfactant was synthesized in the same manner.
Nonionic surfactant (2): In the general formula (1), R: C8 / C10 / C12 / C14 / C16 / C18 = 7.4 / 18.1 / 39 / 24.1 / 7.9 / 3. 5, m = 1.5, n = 7 nonionic surfactant Nonionic surfactant (3); in the general formula (1), R: C8 / C10 / C12 / C14 / C16 = 14.1.23 2 / 29.5 / 25.7 / 7.5, m = 2, n = 9 nonionic surfactant Nonionic surfactant (4); in general formula (1), R: C8 / C10 / C12 / C14 / C16 = 7 / 17.4 / 59 / 12.8 / 3.8, m = 1, n = 10 nonionic surfactant Nonionic surfactant (5); in the general formula (1) , R: C8 / C10 / C12 / C14 / C16 = 14.2 / 11.7 / 49.7 / 12.9 / 11.5, m 1.5, nonionic surfactant n = 10
（２）比較品の合成
（２−１）比較合成例１
炭素数１２の飽和直鎖アルコール９３０ｇ及びＫＯＨ２．８ｇを攪拌装置、温度制御装置、自動導入装置を備えたオートクレーブに仕込み、１１０℃、１．３ｋＰａにて３０分間脱水を行った。脱水後窒素置換を行い、１２０℃まで昇温した後、プロピレンオキサイドを５８０ｇ仕込んだ。１２０℃にて付加反応・熟成を行い、プロポキシレートを得た。次いで、１２０℃にてエチレンオキサイドを２２００ｇ仕込んだ。１２０℃にて付加反応・熟成を行った。その後、８０℃まで冷却した後、３．０ｇの酢酸をオートクレーブ内に加え、８０℃で３０分間攪拌した後、抜き出しを行い、比較例の非イオン界面活性剤（６）を得た。この非イオン界面活性剤（６）は、アルキル基が単一の組成からなる比較品〔一般式（１）中のｍは２、ｎは１０〕である。
(2) Synthesis of comparative product (2-1) Comparative synthesis example 1
930 g of a saturated linear alcohol having 12 carbon atoms and 2.8 g of KOH were charged into an autoclave equipped with a stirrer, a temperature controller and an automatic introduction device, and dehydrated at 110 ° C. and 1.3 kPa for 30 minutes. After dehydration, nitrogen substitution was performed, and after heating up to 120 ° C., 580 g of propylene oxide was charged. Addition reaction and aging were performed at 120 ° C. to obtain propoxylate. Next, 2200 g of ethylene oxide was charged at 120 ° C. Addition reaction and aging were performed at 120 ° C. Then, after cooling to 80 ° C., 3.0 g of acetic acid was added to the autoclave, stirred for 30 minutes at 80 ° C., and then extracted to obtain a nonionic surfactant (6) of Comparative Example. This nonionic surfactant (6) is a comparative product [m in the general formula (1) is 2, and n is 10] in which the alkyl group has a single composition.
（２−２）比較合成例２
炭素数１０の飽和直鎖アルコール７９ｇ、炭素数１２の飽和直鎖アルコール２００ｇ、炭素数１４の飽和直鎖アルコール１９５ｇ、炭素数１６の飽和直鎖アルコール５３ｇの混合アルコール（モル比１８．５：３９．８：３３．７：８）及びＫＯＨ１．５ｇを攪拌装置、温度制御装置、自動導入装置を備えたオートクレーブに仕込み、１１０℃、１．３ｋＰａにて３０分間脱水を行った。脱水後窒素置換を行い、１２０℃まで昇温した後、プロピレンオキサイドを３１３２ｇ仕込んだ。１２０℃にて付加反応・熟成を行い、プロポキシレートを得た。次いで、１２０℃にてエチレンオキサイドを１１８８ｇ仕込んだ。１２０℃にて付加反応・熟成を行った。その後、８０℃まで冷却した後、１．７ｇの酢酸をオートクレーブ内に加え、８０℃で３０分間攪拌した後、抜き出しを行い、比較例の非イオン界面活性剤（７）を得た。この非イオン界面活性剤（７）は、一般式（１）中のｍが２０、ｎが１０の比較品である。
(2-2) Comparative synthesis example 2
Mixed alcohol (molar ratio 18.5: 39) of 79 g of saturated straight chain alcohol having 10 carbon atoms, 200 g of saturated straight chain alcohol having 12 carbon atoms, 195 g of saturated straight chain alcohol having 14 carbon atoms, and 53 g of saturated straight chain alcohol having 16 carbon atoms. 8: 33.7: 8) and 1.5 g of KOH were charged into an autoclave equipped with a stirrer, a temperature controller, and an automatic introduction device, and dehydrated at 110 ° C. and 1.3 kPa for 30 minutes. After dehydration, nitrogen substitution was performed, the temperature was raised to 120 ° C., and 3132 g of propylene oxide was charged. Addition reaction and aging were performed at 120 ° C. to obtain propoxylate. Next, 1188 g of ethylene oxide was charged at 120 ° C. Addition reaction and aging were performed at 120 ° C. Thereafter, after cooling to 80 ° C., 1.7 g of acetic acid was added to the autoclave, and after stirring at 80 ° C. for 30 minutes, extraction was performed to obtain a nonionic surfactant (7) of Comparative Example. This nonionic surfactant (7) is a comparative product in which m is 20 and n is 10 in the general formula (1).
（２−３）比較合成例３
炭素数１０の飽和直鎖アルコール５３ｇ、炭素数１２の飽和直鎖アルコール１３３ｇ、炭素数１４の飽和直鎖アルコール１３０ｇ、炭素数１６の飽和直鎖アルコール３５ｇの混合アルコール（モル比１８．５：３９．８：３３．７：８）及びＫＯＨ１．０ｇを攪拌装置、温度制御装置、自動導入装置を備えたオートクレーブに仕込み、１１０℃、１．３ｋＰａにて３０分間脱水を行った。脱水後窒素置換を行い、１２０℃まで昇温した後、プロピレンオキサイドを２０９ｇ仕込んだ。１２０℃にて付加反応・熟成を行い、プロポキシレートを得た。次いで、１２０℃にてエチレンオキサイドを４７５２ｇ仕込んだ。１２０℃にて付加反応・熟成を行った。その後、８０℃まで冷却した後、１．１ｇの酢酸をオートクレーブ内に加え、８０℃で３０分間攪拌した後、抜き出しを行い、比較例の非イオン界面活性剤（８）を得た。この非イオン界面活性剤（８）は、一般式（１）中のｍが２、ｎが６０の比較品である。
(2-3) Comparative Synthesis Example 3
Mixed alcohol (molar ratio 18.5: 39) of 53 g of saturated straight chain alcohol having 10 carbon atoms, 133 g of saturated straight chain alcohol having 12 carbon atoms, 130 g of saturated straight chain alcohol having 14 carbon atoms, and 35 g of saturated straight chain alcohol having 16 carbon atoms. 8: 33.7: 8) and 1.0 g of KOH were charged into an autoclave equipped with a stirrer, a temperature controller, and an automatic introduction device, and dehydrated at 110 ° C. and 1.3 kPa for 30 minutes. After dehydration, nitrogen substitution was performed, and after raising the temperature to 120 ° C., 209 g of propylene oxide was charged. Addition reaction and aging were performed at 120 ° C. to obtain propoxylate. Next, 4752 g of ethylene oxide was charged at 120 ° C. Addition reaction and aging were performed at 120 ° C. Then, after cooling to 80 ° C., 1.1 g of acetic acid was added to the autoclave, stirred for 30 minutes at 80 ° C., and then extracted to obtain a nonionic surfactant (8) of Comparative Example. This nonionic surfactant (8) is a comparative product in which m is 2 and n is 60 in the general formula (1).
（２−４）比較合成例４
炭素数１０の飽和直鎖アルコール１５８ｇ、炭素数１２の飽和直鎖アルコール４００ｇ、炭素数１４の飽和直鎖アルコール３９０ｇ、炭素数１６の飽和直鎖アルコール１０５ｇの混合アルコール（モル比１８．５：３９．８：３３．７：８）及びＫＯＨ３．０ｇを攪拌装置、温度制御装置、自動導入装置を備えたオートクレーブに仕込み、１１０℃、１．３ｋＰａにて３０分間脱水を行った。脱水後窒素置換を行い、１２０℃まで昇温した後、エチレンオキサイドを２３７６ｇ仕込んだ。１２０℃にて付加反応・熟成を行った。その後、８０℃まで冷却した後、３．３ｇの酢酸をオートクレーブ内に加え、８０℃で３０分間攪拌した後、抜き出しを行い、比較例の非イオン界面活性剤（９）を得た。この非イオン界面活性剤（９）は、一般式（１）中のｍが０、ｎが１０の比較品である。
(2-4) Comparative Synthesis Example 4
158 g of saturated linear alcohol having 10 carbon atoms, 400 g of saturated linear alcohol having 12 carbon atoms, 390 g of saturated linear alcohol having 14 carbon atoms, and 105 g of saturated linear alcohol having 16 carbon atoms (molar ratio 18.5: 39 8: 33.7: 8) and 3.0 g of KOH were charged into an autoclave equipped with a stirrer, a temperature controller, and an automatic introduction device, and dehydrated at 110 ° C. and 1.3 kPa for 30 minutes. After dehydration, nitrogen substitution was performed, the temperature was raised to 120 ° C., and 2376 g of ethylene oxide was charged. Addition reaction and aging were performed at 120 ° C. Then, after cooling to 80 ° C., 3.3 g of acetic acid was added to the autoclave, and the mixture was stirred at 80 ° C. for 30 minutes and then extracted to obtain a nonionic surfactant (9) of Comparative Example. This nonionic surfactant (9) is a comparative product in which m is 0 and n is 10 in the general formula (1).
（２−５）比較合成例５
合成アルコール（商品名：ＳＡＦＯＬ２３、ＳＡＳＯＬ社製、炭素数１２、１３のアルキル基を有する、分岐率５０％）１９４ｇ及びＫＯＨ０．５ｇを攪拌装置、温度制御装置、自動導入装置を備えたオートクレーブに仕込み、１１０℃、１．３ｋＰａにて３０分間脱水を行った。脱水後窒素置換を行い、１２０℃まで昇温した後、エチレンオキサイドを４４０ｇ仕込んだ。１２０℃にて付加反応・熟成を行った。その後、８０℃まで冷却した後、０．６ｇの酢酸をオートクレーブ内に加え、８０℃で３０分間攪拌した後、抜き出しを行い、比較例の非イオン界面活性剤（１０）を得た。この非イオン界面活性剤（１０）は、一般式（１）中のＲが、分岐鎖アルキル基を含み且つ短鎖アルキル基を含まず、更に、一般式（１）中のｍが０、ｎが１０の比較品である。
(2-5) Comparative Synthesis Example 5
194 g of synthetic alcohol (trade name: SAFOL23, manufactured by SASOL, having an alkyl group with 12 and 13 carbon atoms, 50% branching rate) and 0.5 g of KOH are charged into an autoclave equipped with a stirrer, temperature controller, and automatic introduction device. Dehydration was performed at 110 ° C. and 1.3 kPa for 30 minutes. After dehydration, nitrogen substitution was performed, the temperature was raised to 120 ° C., and then 440 g of ethylene oxide was charged. Addition reaction and aging were performed at 120 ° C. Thereafter, after cooling to 80 ° C., 0.6 g of acetic acid was added to the autoclave, and the mixture was stirred for 30 minutes at 80 ° C. and then extracted to obtain a nonionic surfactant (10) of Comparative Example. In the nonionic surfactant (10), R in the general formula (1) includes a branched alkyl group and does not include a short chain alkyl group. Further, m in the general formula (1) is 0, n Is a comparative product of 10.
（２−６）比較合成例６
２−エチルヘキサノール６５ｇ、合成アルコール（商品名：ＩＳＯＦＯＬ１２、ＳＡＳＯＬ社製、炭素数１２のアルキル基を有する、分岐率１００％）９３ｇの混合アルコール（モル比５０：５０）及びＫＯＨ０．５ｇを攪拌装置、温度制御装置、自動導入装置を備えたオートクレーブに仕込み、１１０℃、１．３ｋＰａにて３０分間脱水を行った。脱水後窒素置換を行い、１２０℃まで昇温した後、プロピレンオキサイドを１１６ｇ仕込んだ。１２０℃にて付加反応・熟成を行い、プロポキシレートを得た。次いで、１２０℃にてエチレンオキサイドを４４０ｇ仕込んだ。１２０℃にて付加反応・熟成を行った。その後、８０℃まで冷却した後、０．６ｇの酢酸をオートクレーブ内に加え、８０℃で３０分間攪拌した後、抜き出しを行い、比較例の非イオン界面活性剤（１１）を得た。この非イオン界面活性剤（１１）は、一般式（１）中のＲが、分岐鎖アルキル基のみの比較品であり、Ｒとして短鎖アルキル基（Ｃ８）と長鎖アルキル基（Ｃ１２）とをモル比５０：５０で含み、更に、一般式（１）中のｍが２、ｎが１０である。
(2-6) Comparative Synthesis Example 6
Stirrer of 65 g of 2-ethylhexanol, synthetic alcohol (trade name: ISOFOL12, manufactured by SASOL, having an alkyl group with 12 carbon atoms, 100% branching rate) 93 g of mixed alcohol (molar ratio 50:50) and KOH 0.5 g Then, it was charged into an autoclave equipped with a temperature control device and an automatic introduction device, and dehydrated at 110 ° C. and 1.3 kPa for 30 minutes. After dehydration, nitrogen substitution was performed, the temperature was raised to 120 ° C., and 116 g of propylene oxide was charged. Addition reaction and aging were performed at 120 ° C. to obtain propoxylate. Next, 440 g of ethylene oxide was charged at 120 ° C. Addition reaction and aging were performed at 120 ° C. Then, after cooling to 80 ° C., 0.6 g of acetic acid was added to the autoclave, and after stirring at 80 ° C. for 30 minutes, extraction was performed to obtain a nonionic surfactant (11) of Comparative Example. This nonionic surfactant (11) is a comparative product in which R in the general formula (1) is only a branched alkyl group, and R represents a short chain alkyl group (C8), a long chain alkyl group (C12), and In the general formula (1), m is 2 and n is 10.
（２−７）比較合成例７
炭素数１０の飽和直鎖アルコール１５８ｇ、炭素数１２の飽和直鎖アルコール４００ｇ、炭素数１４の飽和直鎖アルコール３９０ｇ、炭素数１６の飽和直鎖アルコール１０５ｇの混合アルコール（モル比１８．５：３９．８：３３．７：８）及びＫＯＨ３．０ｇを攪拌装置、温度制御装置、自動導入装置を備えたオートクレーブに仕込み、１１０℃、１．３ｋＰａにて３０分間脱水を行った。脱水後窒素置換を行い、１２０℃まで昇温した後、プロピレンオキサイド６２６ｇ、エチレンオキサイドを２３７６ｇを混合したアルキレンオキサイド混合物を仕込んだ。１２０℃にて付加反応・熟成を行った。その後、８０℃まで冷却した後、３．３ｇの酢酸をオートクレーブ内に加え、８０℃で３０分間攪拌した後、抜き出しを行い、比較例の非イオン界面活性剤（１２）を得た。この非イオン界面活性剤（１２）は、一般式（１）中のＰＯとＥＯがランダムに配列した比較品〔ＰＯ平均付加モル数２、ＥＯ平均付加モル数１０〕である。
(2-7) Comparative Synthesis Example 7
158 g of saturated linear alcohol having 10 carbon atoms, 400 g of saturated linear alcohol having 12 carbon atoms, 390 g of saturated linear alcohol having 14 carbon atoms, and 105 g of saturated linear alcohol having 16 carbon atoms (molar ratio 18.5: 39 8: 33.7: 8) and 3.0 g of KOH were charged into an autoclave equipped with a stirrer, a temperature controller, and an automatic introduction device, and dehydrated at 110 ° C. and 1.3 kPa for 30 minutes. After dehydration, nitrogen substitution was performed, and after raising the temperature to 120 ° C., an alkylene oxide mixture in which 626 g of propylene oxide and 2376 g of ethylene oxide were mixed was charged. Addition reaction and aging were performed at 120 ° C. Then, after cooling to 80 ° C., 3.3 g of acetic acid was added to the autoclave, and the mixture was stirred at 80 ° C. for 30 minutes, and then extracted to obtain a nonionic surfactant (12) of Comparative Example. This nonionic surfactant (12) is a comparative product [PO average addition mole number 2 and EO average addition mole number 10] in which PO and EO in the general formula (1) are randomly arranged.
（２−８）比較合成例８
炭素数１０の飽和直鎖アルコール１５８ｇ、炭素数１２の飽和直鎖アルコール４００ｇ、炭素数１４の飽和直鎖アルコール３９０ｇ、炭素数１６の飽和直鎖アルコール１０５ｇの混合アルコール（モル比１８．５：３９．８：３３．７：８）及びＫＯＨ３．０ｇを攪拌装置、温度制御装置、自動導入装置を備えたオートクレーブに仕込み、１１０℃、１．３ｋＰａにて３０分間脱水を行った。脱水後窒素置換を行い、１２０℃まで昇温した後、エチレンオキサイドを２３７６ｇ仕込んだ。１２０℃にて付加反応・熟成を行い、エトキシレートを得た。次いで、１２０℃にてプロピレンオキサイドを６２６ｇ仕込んだ。１２０℃にて付加反応・熟成を行った。その後、８０℃まで冷却した後、３．３ｇの酢酸をオートクレーブ内に加え、８０℃で３０分間攪拌した後、抜き出しを行い、比較例の非イオン界面活性剤（１３）を得た。この非イオン界面活性剤（１３）は、一般式（１）中のＰＯとＥＯが逆にブロック配列した、Ｒ−Ｏ−（ＥＯ）n−（ＰＯ）m−Ｈの構造の比較品〔ＰＯ平均付加モル数２、ＥＯ平均付加モル数１０〕である。
(2-8) Comparative Synthesis Example 8
158 g of saturated linear alcohol having 10 carbon atoms, 400 g of saturated linear alcohol having 12 carbon atoms, 390 g of saturated linear alcohol having 14 carbon atoms, and 105 g of saturated linear alcohol having 16 carbon atoms (molar ratio 18.5: 39 8: 33.7: 8) and 3.0 g of KOH were charged into an autoclave equipped with a stirrer, a temperature controller, and an automatic introduction device, and dehydrated at 110 ° C. and 1.3 kPa for 30 minutes. After dehydration, nitrogen substitution was performed, the temperature was raised to 120 ° C., and 2376 g of ethylene oxide was charged. Addition reaction and aging were performed at 120 ° C. to obtain an ethoxylate. Next, 626 g of propylene oxide was charged at 120 ° C. Addition reaction and aging were performed at 120 ° C. Then, after cooling to 80 ° C., 3.3 g of acetic acid was added to the autoclave, stirred at 80 ° C. for 30 minutes, and then extracted to obtain a nonionic surfactant (13) of Comparative Example. This nonionic surfactant (13) is a comparative product with a structure of R—O— (EO) n — (PO) m —H in which PO and EO in the general formula (1) are reversed in block arrangement [PO The average added mole number is 2, and the EO average added mole number is 10].
２．液体洗浄剤組成物の調製及び評価
上記により得られた非イオン界面活性剤、アルキルベンゼンスルホン酸、及び表１に示した各成分を用い、表１に示した配合に従って液体洗浄剤組成物を調製し、以下の要領で低温での流動性評価、洗浄力評価を行った。評価結果を表１に示す。なお、表１に示した組成は、配合成分の固形分に基づく重量％である。また、表１の液体洗浄剤組成物は、衣料用液体洗浄剤組成物として好適である。
2. Preparation and evaluation of liquid detergent composition Using the nonionic surfactant obtained above, alkylbenzenesulfonic acid, and each component shown in Table 1, a liquid detergent composition was prepared according to the formulation shown in Table 1. The fluidity evaluation at low temperature and the cleaning power evaluation were performed in the following manner. The evaluation results are shown in Table 1. In addition, the composition shown in Table 1 is weight% based on solid content of a compounding component. Moreover, the liquid cleaning composition of Table 1 is suitable as a liquid cleaning composition for clothing.
（１）粘度
液体洗浄剤組成物の粘度は、Ｂ型粘度計〔（株）東京計器製、ＶＩＳＣＯＭＥＴＥＲ ＭＯＤＥＬ ＤＶＭ−Ｂ〕を用い、使用するローター１〜４、回転数３０ｒ／ｍｉｎ、測定時間６０秒の条件にて５℃で測定した。
(1) Viscosity The viscosity of the liquid detergent composition is a B-type viscometer [manufactured by Tokyo Keiki Co., Ltd., VISCOMETER MODEL DVM-B], used rotors 1 to 4, rotation speed 30 r / min, measurement time 60 It measured at 5 degreeC on the conditions of second.
この評価において、液体洗浄剤組成物の粘度は、移送時・配合時のハンドリング性の観点から２００ｍＰａ・ｓ以下であることが好ましく、より好ましくは１５０ｍＰａ・ｓ以下、更に好ましくは１００ｍＰａ・ｓ以下である。 In this evaluation, the viscosity of the liquid detergent composition is preferably 200 mPa · s or less, more preferably 150 mPa · s or less, and still more preferably 100 mPa · s or less, from the viewpoint of handling at the time of transfer and blending. is there.
（２）洗浄力
（人工汚垢布の調製）
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い、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する。この汚染布を１０ｃｍ×１０ｃｍに裁断し、洗浄試験に供した。
(2) Detergency (preparation of artificial dirt cloth)
To 75 L of ethylene tetrachloride, 1531.2 g of organic soil having the composition shown below and 240 g of carbon paste having the composition shown below were added and ultrasonically dispersed for 10 minutes. Soak wool muslin) and air dry after contamination to make a contaminated cloth. The contaminated cloth was cut into 10 cm × 10 cm and subjected to a cleaning test.
なお、有機汚垢の組成は、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％）であり、カーボンペーストの組成は旭カーボンブラック０．２％、綿実湯１３．４％（合計１３．６％）である。ここで、％は、有機汚垢とカーボンペーストの混合物における割合（重量％）である。 The composition of organic dirt is 44.8% cottonseed oil, 10.8% cholesterol, 10.8% oleic acid, 7.8% palmitic acid, 2.0% cetyl alcohol, 5.1% solid paraffin, fluid The paraffin is 5.1% (total 86.4%), and the composition of the carbon paste is Asahi Carbon Black 0.2% and cottonseed 13.4% (total 13.6%). Here,% is a ratio (% by weight) in the mixture of organic dirt and carbon paste.
１２０ｃｍ×４０ｃｍの洗浄布（ウールモスリン）を２つ折り（６０ｃｍ×４０ｃｍ）にして筒状に縫い合わせ、片面・表面側中央部分に上記人工汚垢布を３枚縫い付けた試験布を作成した。 A wash cloth (wool muslin) of 120 cm × 40 cm 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 sewed on one side / surface side central portion.
（洗浄処理）
全自動洗濯機（東芝ＡＷ−Ｄ８０２ＶＰ）の洗濯機に水道水３０リットルを入れ、上記試験布を３枚（人工汚垢布９枚）入れる。更に表１の液体洗浄剤組成物を４０ｍｌ入れ、標準コースにて洗濯する。尚、水道水は２０℃に調整して用いた。洗濯終了後、２０℃６５％ＲＨの恒温恒湿室に２４時間静置乾燥した。
(Cleaning process)
Put 30 liters of tap water into a washing machine of a fully automatic washing machine (Toshiba AW-D802VP), and put three test cloths (9 artificial dirt cloths). Further, 40 ml of the liquid detergent composition shown in Table 1 is added and washed in a standard course. The tap water was adjusted to 20 ° C. and used. After completion of washing, it was left to dry in a constant temperature and humidity chamber at 20 ° C. and 65% RH for 24 hours.
（洗浄性能評価）
洗浄後の人工汚垢布反射率を測定し（λ＝５５０μｍ）、次式により洗浄率を計算し、下記の基準で評価した。この時、９枚の人工汚垢布のうち、洗浄率が最高値及びその次に高いサンプルの計２枚並びに最低値及びその次に低いサンプルの計２枚を除外し、残り５枚の平均値で以下の基準により洗浄性能を評価した。
洗浄率（％）＝（洗浄後の反射率−洗浄前の反射率）／（原布の反射率−洗浄前の反射率）×１００
(Cleaning performance evaluation)
The reflectance of the artificial soil cloth after washing was measured (λ = 550 μm), the washing rate was calculated by the following formula, and evaluated according to the following criteria. At this time, out of the 9 artificial dirt cloths, 2 sheets with the highest and the next highest cleaning rate and 2 sheets with the lowest and the next lowest sample were excluded, and the average of the remaining 5 sheets The cleaning performance was evaluated according to the following criteria.
Washing rate (%) = (reflectance after washing−reflectance before washing) / (reflectance of raw fabric−reflectivity before washing) × 100
Ｉ…洗浄率４０％以上
II…洗浄率３５％以上４０％未満
III…洗浄率３０％以上３５％未満
IV…洗浄率２０％以上３０％未満
Ｖ…洗浄率２０％未満
I ... 40% or more cleaning rate
II ... Washing rate 35% or more and less than 40%
III ... Washing rate 30% or more and less than 35%
IV: Cleaning rate 20% or more and less than 30% V: Cleaning rate 20% or less
表中、アルキルベンゼンスルホン酸は、ネオペレックスＧＳ−Ｐ〔ドデシルベンゼンスルホン酸、花王（株）〕である。また、ｐＨは、ｐＨ調整剤として、水酸化ナトリウム及び／又は硫酸を用いて調整した。なお、（ａ）／［（ａ）＋（ｂ）］（モル％）は、［〔（ａ）成分の配合量〕／〔（ａ）成分の配合量＋（ｂ）成分の配合量〕］×１００で算出されるものであり、一部の比較例では、比較の非イオン界面活性剤を（ａ）成分として算出した。 In the table, alkylbenzenesulfonic acid is Neoperex GS-P [Dodecylbenzenesulfonic acid, Kao Corporation]. Moreover, pH was adjusted using sodium hydroxide and / or sulfuric acid as a pH adjuster. Note that (a) / [(a) + (b)] (mol%) is [[(a) component blending amount] / [(a) component blending amount + (b) component blending amount]]. In some comparative examples, the comparative nonionic surfactant was calculated as the component (a).
Claims (5)
Ｒ−Ｏ−（ＰＯ）m−（ＥＯ）n−Ｈ （１）
（式中、Ｒは炭素数６〜２４の飽和直鎖炭化水素基、ＰＯはプロピレンオキシ基、ｍは平均付加モル数で０．５〜５、ＥＯはエチレンオキシ基、ｎは平均付加モル数で５〜１５を示す。） It is represented by the following general formula (1), and R is composed of 5 to 95 mol% of a saturated straight chain hydrocarbon group having 11 or less carbon atoms and 5 to 95 mol% of a saturated straight chain hydrocarbon group having 12 or more carbon atoms. A non-ionic surfactant (a) [hereinafter referred to as component (a)] and alkylbenzenesulfonic acid and / or a salt thereof (b) [hereinafter referred to as component (b)].
R—O— (PO) m — (EO) n —H (1)
(In the formula, R is a saturated linear hydrocarbon group having 6 to 24 carbon atoms, PO is a propyleneoxy group, m is an average addition mole number of 0.5 to 5 , EO is an ethyleneoxy group, and n is an average addition mole number. 5 to 15 are shown.)
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |