JP2011252051A - Liquid detergent composition - Google Patents

Liquid detergent composition Download PDF

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JP2011252051A
JP2011252051A JP2010125509A JP2010125509A JP2011252051A JP 2011252051 A JP2011252051 A JP 2011252051A JP 2010125509 A JP2010125509 A JP 2010125509A JP 2010125509 A JP2010125509 A JP 2010125509A JP 2011252051 A JP2011252051 A JP 2011252051A
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liquid detergent
detergent composition
carbon atoms
alkyl group
general formula
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Kazuyoshi Arai
和義 新井
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NS FaFa Japan Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a liquid detergent composition excellent in low temperature stability in a composition using a fatty acid, a cationic surfactant and a high concentration nonionic surfactant.SOLUTION: This liquid detergent composition includes 30-65 wt.% of a nonionic surfactant (A) expressed by general formula (1) (wherein Ris a linear alkyl group; and n denotes average addition mole number of ethylene oxide), a fatty acid and its salt (B), a cationic surfactant (C), a hydrotropic agent (D) and, as a component (E), a copolymer of an alkenylether expressed by general formula (2) (wherein AOis a mixture of one or two or more oxyalkylene groups; Ris an alkenyl group; Ris an alkyl group; m is an average addition mole number of oxyalkylene groups), containing hydrolysates thereof and salts thereof, and the balance being water.

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.

洗浄剤組成物には、その形態が粉末状のものや液体状のものが存在するが、水中での溶け残りの懸念がないことや、洗浄対象物に対して直接塗布することが可能である等の理由から、世界的に液体洗浄剤組成物の使用割合が高まっている。
さらに近年では、利便性向上の観点から、例えば衣料用液体洗浄剤組成物の場合、洗浄力と繊維の柔軟性付与効果を共に有する、2
i n 1 型の液体洗浄剤組成物も求められている。
このように、液体洗浄剤組成物には、洗浄力だけではなく、洗浄力以外の機能も必要とされるようになってきている。
一方、かかる液体洗浄剤組成物は、様々な場所や条件下で使用されることが想定されることから、経時安定性に優れていることも重要である。
There are powders and liquids in the form of a detergent composition, but there is no concern of undissolved residue in water, and it can be applied directly to the object to be cleaned. For these reasons, the use ratio of liquid detergent compositions is increasing worldwide.
Further, in recent years, from the viewpoint of improving convenience, for example, in the case of a liquid detergent composition for clothing, it has both detergency and fiber flexibility imparting effect.
There is also a need for i n 1 type liquid detergent compositions.
As described above, liquid detergent compositions are required to have functions other than detergency as well as detergency.
On the other hand, since it is assumed that such a liquid cleaning composition is used in various places and conditions, it is also important that the liquid cleaning composition is excellent in stability over time.

これまでに液体洗浄剤組成物としては、例えば、非イオン性界面活性剤/アニオン性界面活性剤/モノアルキルタイプのカチオン性界面活性剤の配合割合を種々特定した液体洗浄剤組成物等が提案されている(例えば、特許文献1参照)

また、特定のアミン化合物又はその酸塩を含有する組成物(特許文献2参照)や、非イオン性界面活性剤、特定のアミン化合物、ハイドロトロープ剤およびプロテアーゼを含有してなる液体洗浄剤組成物が提案されている(特許文献3参照)
So far, as liquid detergent compositions, for example, liquid detergent compositions that have variously specified nonionic surfactant / anionic surfactant / monoalkyl type cationic surfactants have been proposed. (For example, see Patent Document 1)
.
Moreover, the composition (refer patent document 2) containing a specific amine compound or its acid salt, and the liquid detergent composition containing a nonionic surfactant, a specific amine compound, a hydrotrope agent, and protease Has been proposed (see Patent Document 3).
.

特開平7 − 1 6 6 1 9 0 号公報Japanese Patent Application Laid-Open No. 7-1666 190 特開平10 − 7 2 7 7 2 号公報JP-A-10-7 2 7 72 特開20 0 5 − 1 0 5 1 0 7 号公報Japanese Patent Laid-Open No. 20 0 5-1 0 5 1 0 7

特許文献1 に記載の液体洗浄剤組成物は、洗浄対象物に対して柔軟性付与効果を有し、かつ良好なすすぎ性が発揮されたものである。また、特許文献2 に記載の組成物は、洗濯の繰り返しによる衣料の色調劣化が抑制されたものである。
しかしながら、特許文献1 〜 2 に記載の組成物は、いずれも経時安定性については考慮されていない。
The liquid detergent composition described in Patent Document 1 has an effect of imparting flexibility to an object to be cleaned and exhibits good rinsing properties. Moreover, the composition of patent document 2 is the thing by which the color tone deterioration of the clothing by the repetition of washing was suppressed.
However, none of the compositions described in Patent Documents 1 and 2 takes into account the temporal stability.

また、特許文献3に記載の液体洗浄剤組成物は、50℃および5℃の保存条件下での経時安定性については良好であるものの、それより低い温度(例えば−5℃)
条件下では沈殿物が発生し、低温安定性は充分ではない。
本発明者の検討によると、特に脂肪酸塩と陽イオン性界面活性剤及び高濃度(例えば50%)の非イオン性界面活性剤を含有する液体洗浄剤組成物での経時安定性の評価において、低温(−5℃)
での保存時に沈殿が生じやすいことが分かった。さらに、かかる液体洗浄剤組成物は、寒冷地などの保存温度条件に相当すると考えられる0℃より低い温度(例えば−5℃)と0℃付近(例えば5℃)との繰り返しの条件下において沈殿が生じやすいことが分かった。
In addition, the liquid detergent composition described in Patent Document 3 has good stability over time under storage conditions of 50 ° C. and 5 ° C., but a lower temperature (eg, −5 ° C.).
Under these conditions, precipitates are generated and the low temperature stability is not sufficient.
According to the study of the present inventor, particularly in the evaluation of the stability over time in a liquid detergent composition containing a fatty acid salt, a cationic surfactant and a high concentration (for example, 50%) nonionic surfactant, Low temperature (-5 ° C)
It was found that precipitation was likely to occur during storage at. Further, such a liquid detergent composition is precipitated under repeated conditions of a temperature lower than 0 ° C. (eg, −5 ° C.) and around 0 ° C. (eg 5 ° C.), which is considered to correspond to a storage temperature condition such as a cold district. It was found that is likely to occur.

本発明は、上記事情に鑑みてなされたものであり、脂肪酸と陽イオン性界面活性剤及び高濃度の非イオン性界面活性剤を用いた組成物において、低温安定性に優れた液体洗浄剤組成物を提供することを課題とする。   The present invention has been made in view of the above circumstances, and in a composition using a fatty acid, a cationic surfactant, and a high concentration nonionic surfactant, a liquid detergent composition having excellent low-temperature stability. The issue is to provide goods.

本発明者は上記課題を解決する為鋭意検討した結果、特定の、高分子成分を用いることによって、上記目的を達成出来ることを見いだした。   As a result of intensive studies to solve the above problems, the present inventor has found that the above object can be achieved by using a specific polymer component.

高濃度の非イオン性界面活性剤に脂肪酸及びその塩、陽イオン性界面活性剤を含有しながら、低温における経時安定性に優れた液体洗浄剤組成物を作ることが出来る。   While containing a fatty acid, a salt thereof, and a cationic surfactant in a high concentration nonionic surfactant, a liquid detergent composition having excellent stability over time at a low temperature can be produced.

以下本発明について更に詳細に説明する。
本発明の液体洗浄剤組成物は下記一般式(1)に示される非イオン性界面活性剤(A)30〜65重量%と

Figure 2011252051
[式中Rは炭素数12〜14の直鎖状のアルキル基であり、nはエチレンオキサイドの平均付加モル数を表し、8〜10である]
脂肪酸及びその塩(B)と陽イオン性界面活性剤(C)とハイドロトロープ剤(D)と(E)成分として、下記の一般式(2)
Figure 2011252051
[ただし、AOは炭素数2〜18のオキシアルキレン基の1種または2種以上の混合物で、2種以上のときはブロック状に付加していてもランダム状に付加していてもよく、R
はアルケニル基、R はアルキル基、mはオキシアルキレン基の平均付加モル数である。]
で示されるアルケニルエーテルと無水マレイン酸との共重合体で、この加水分解物及びこの塩を含有し、残りが水であることを特徴とする。
Hereinafter, the present invention will be described in more detail.
The liquid detergent composition of the present invention comprises 30 to 65% by weight of a nonionic surfactant (A) represented by the following general formula (1):
Figure 2011252051
[Wherein R 1 is a linear alkyl group having 12 to 14 carbon atoms, and n represents the average number of moles of ethylene oxide added and is 8 to 10]
Fatty acid and its salt (B), cationic surfactant (C), hydrotrope agent (D) and (E) as component (2)
Figure 2011252051
[However, AO 1 is a mixture of one or two or more oxyalkylene groups having 2 to 18 carbon atoms, and when it is two or more, it may be added in a block shape or randomly, R 2
Is an alkenyl group, R 3 is an alkyl group, and m is the average number of moles of oxyalkylene group added. ]
A copolymer of alkenyl ether and maleic anhydride represented by the formula (1), characterized in that it contains this hydrolyzate and its salt, and the remainder is water.

(A)成分は下記一般式(1)で示され、

Figure 2011252051
[式中Rは炭素数12〜14の直鎖状のアルキル基であり、nはエチレンオキサイドの平均付加モル数を表し、8〜10である]
Rの炭素数は12が好ましく、更に好ましくは12と14の混合でありさらに好ましくはこの混合比が12:14=75:25であると液体洗浄剤としての低温でのゲル化が抑制される。
(A) component is shown by the following general formula (1),
Figure 2011252051
[Wherein R 1 is a linear alkyl group having 12 to 14 carbon atoms, and n represents the average number of moles of ethylene oxide added and is 8 to 10]
The carbon number of R 1 is preferably 12, more preferably a mixture of 12 and 14, and further preferably a mixing ratio of 12: 14 = 75: 25 prevents gelation at a low temperature as a liquid detergent. The

脂肪酸及びその塩(B)の脂肪酸は炭素数10〜18であり、好ましくは炭素数12〜16である。
The fatty acid and the fatty acid thereof (B) have 10 to 18 carbon atoms, preferably 12 to 16 carbon atoms.

(B)成分は全液体洗浄剤組成物中1〜5重量%が好ましく、さらに好ましくは2.5〜3.5重量%であると低温安定性が良くなる。
The component (B) is preferably 1 to 5% by weight, more preferably 2.5 to 3.5% by weight in the total liquid detergent composition, and the low temperature stability is improved.

(B)成分の塩としては、モノエタノールアミン、ジエタノールアミン、トリエタノールアミン、苛性ソーダ、苛性カリ等のアルカリ剤を使うことができる。特に、アルカノールアミンを用いると低温安定性が良いので好ましい。
As the salt of the component (B), alkali agents such as monoethanolamine, diethanolamine, triethanolamine, caustic soda, caustic potash and the like can be used. In particular, the use of alkanolamine is preferable because of low temperature stability.

陽イオン性界面活性剤(C)としては、イミダゾリン型カチオン性界面活性剤を用いると衣類への柔軟性付与やごわつき防止効果及び経時安定性における変色防止効果が向上するので好ましい。
As the cationic surfactant (C), it is preferable to use an imidazoline type cationic surfactant because it imparts flexibility to clothes, prevents wrinkling, and improves discoloration prevention in aging stability.

(C)成分の配合量は液体洗浄剤組成物中3重量%以下が低温安定性の面で好ましい。また、1.5重量%以上であると経時安定性における変色防止効果が出るので好ましい。
The amount of component (C) is preferably 3% by weight or less in the liquid detergent composition from the viewpoint of low-temperature stability. Moreover, it is preferable that it is 1.5% by weight or more since an effect of preventing discoloration in stability over time appears.

ハイドロトロープ剤(D)は、下記一般式(3)で示され、

Figure 2011252051
[式中Rは炭素数2〜6のアルキル基であり、AOは炭素数2〜4のアルキレンオキサイドであり、kはアルキレンオキサイドの付加モル数で0〜4である。]
低温安定性の向上だけでなく、非イオン界面活性剤を配合することにより低下した液体洗浄剤組成物の水への溶解性を向上させることができる。
The hydrotrope agent (D) is represented by the following general formula (3),
Figure 2011252051
[Wherein R 4 is an alkyl group having 2 to 6 carbon atoms, AO 2 is an alkylene oxide having 2 to 4 carbon atoms, and k is 0 to 4 in terms of the number of added moles of alkylene oxide. ]
Not only the low temperature stability can be improved, but also the solubility of the liquid detergent composition, which has been lowered by adding a nonionic surfactant, in water can be improved.

(D)成分は液体洗浄剤組成物の10重量%以上が好ましく、さらに好ましくは15重量%以上あるとよい。
The component (D) is preferably 10% by weight or more, more preferably 15% by weight or more of the liquid detergent composition.

(E)成分はアルケニルエーテルとマレイン酸の共重合体の加水分解物である。
本発明においては、(E)成分を使うことにより本発明の効果である液体洗浄剤組成物の低温安定性を向上させることができる。
Component (E) is a hydrolyzate of a copolymer of alkenyl ether and maleic acid.
In the present invention, the use of the component (E) can improve the low temperature stability of the liquid detergent composition which is the effect of the present invention.

(E)成分の配合量は液体洗浄剤組成物中0.5重量%以上が好ましく、さらに好ましくは1〜1.5重量%が低温安定性の面で良い。
The blending amount of the component (E) is preferably 0.5% by weight or more, more preferably 1 to 1.5% by weight in the liquid detergent composition, in view of low temperature stability.

本発明の液体洗浄剤は、その他成分として、一般の洗浄剤添加物を含有することができる。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のポリマー、ポリビニルピロリドン等の色移り防止剤、プロテアーゼ、アミラーゼ、セルラーゼ、リパーゼ等の酵素、ブチルヒドロキシトルエン等の酸化防止剤、防腐剤、香料成分、染料、蛍光染料、顔料等を必要に応じて含んでも良い。
The liquid detergent of the present invention can contain general detergent additives as other components. For example, polymers such as polyethylene glycol and carboxymethyl cellulose, color transfer inhibitors such as polyvinylpyrrolidone, enzymes such as protease, amylase, cellulase and lipase, antioxidants such as butylhydroxytoluene, preservatives, perfume ingredients, dyes and fluorescent dyes In addition, pigments and the like may be included as necessary.

本発明の液体洗浄剤組成物は、その調整方法が特に制限されるものではなく、例えば通常の液体洗浄剤組成物の常法に準じて調整することができる。すなわち液体洗浄剤組成物の各必須成分と、必要に応じて前記任意成分、更に適宜水を配合、混合することによって調整することができる。
かかる液体洗浄剤組成物の液性は、特に制限されるものではないが、例えば液体洗浄剤組成物のpHは、洗浄力の点から、pH4〜11であることが好ましく、pH5〜10であることがより好ましく、pH6〜9であることがさらに好ましい。
The method for adjusting the liquid detergent composition of the present invention is not particularly limited. For example, the liquid detergent composition can be adjusted according to a conventional method for liquid detergent compositions. That is, it can adjust by mix | blending and mixing each essential component of a liquid detergent composition, the said arbitrary component as needed, and also water suitably.
The liquid property of such a liquid detergent composition is not particularly limited. For example, the pH of the liquid detergent composition is preferably pH 4 to 11, preferably pH 5 to 10, from the viewpoint of detergency. It is more preferable that the pH is 6-9.

本発明の液体洗浄剤組成物は、例えばプラスチック製容器に収納することが出来る。プラスチック製容器としては、例えばボトル本体容器、詰め替え用のスタンディングパウチ等が挙げられる。
The liquid detergent composition of the present invention can be stored, for example, in a plastic container. Examples of the plastic container include a bottle body container and a refilling standing pouch.

以下に実施例(実験例) を用いて本発明をさらに詳しく説明するが、本発明はこれら実施例(実験例) に限定されるものではない。
Hereinafter, the present invention will be described in more detail with reference to examples (experimental examples), but the present invention is not limited to these examples (experimental examples).

表1 に示す組成に従って、常法に準じて液体洗浄剤組成物を調製し、各例の液体洗浄剤組成物を得た。
得られた各例の液体洗浄剤組成物について、下記の評価方法に従って洗浄力、
低温安定性をそれぞれ評価した。その結果を表1に併記した。

≪洗浄力評価≫
( 1 ) 洗浄処理方法
JIS硬度水1000mlに液体洗浄剤組成物0.33gを溶かし、ターゴトメーターで30℃100rpmの条件で洗濯科学協会製 湿式汚染布10枚を10分間撹拌した(洗浄)。そして、汚染布を流水すすぎした後脱水、乾燥させた。
( 2 ) 洗浄力の評価方法
前記洗浄処理を終えた湿式汚染布の反射率を、反射率計TC-6D(日本電色(株)製)により測定し、洗浄率を以下の式で算出した。
洗浄率(%)=(汚染布の反射率−洗浄布の反射率)/(汚染布の反射率−未汚染布の反射率)
式中、未汚染布の反射率は70%とした。
< 評価基準>
1 点: 洗浄率が32 % 未満である。
2 点: 洗浄率が32 % 以上〜 35 % 未満である。
3 点: 洗浄率が35 % 以上〜 38 % 未満である。
4 点: 洗浄率が38 % 以上〜 41 % 未満である。
5 点: 洗浄率が41% 以上である。
According to the composition shown in Table 1, a liquid detergent composition was prepared according to a conventional method, and the liquid detergent composition of each example was obtained.
About the obtained liquid cleaning composition of each example, cleaning power according to the following evaluation method,
Low temperature stability was evaluated respectively. The results are also shown in Table 1.

≪Detergency evaluation≫
(1) Cleaning method
0.33 g of the liquid detergent composition was dissolved in 1000 ml of JIS hardness water, and 10 wet-stained cloths made by the Laundry Science Association were stirred for 10 minutes with a targotometer at 30 ° C. and 100 rpm (washing). The contaminated cloth was rinsed with running water and then dehydrated and dried.
(2) Detergency Evaluation Method The reflectance of the wet-contaminated cloth after the cleaning treatment was measured with a reflectometer TC-6D (manufactured by Nippon Denshoku Co., Ltd.), and the cleaning rate was calculated by the following formula. .
Washing rate (%) = (reflectance of contaminated cloth−reflectance of washed cloth) / (reflectance of contaminated cloth−reflectance of uncontaminated cloth)
In the formula, the reflectance of the uncontaminated cloth was 70%.
<Evaluation criteria>
1 point: The cleaning rate is less than 32%.
Two points: The cleaning rate is 32% or more and less than 35%.
3 points: The cleaning rate is 35% or more and less than 38%.
4 points: The cleaning rate is 38% or more and less than 41%.
5 points: The cleaning rate is 41% or more.

≪ 低温安定性評価 ≫
本発明の効果を証明するための実験例1〜2及び比較組成について、各例の液体洗浄剤組成物25mLを、直径35mm、高さ78mmの円筒ガラス瓶に取り、蓋を閉めて密封した。この状態で、−5℃から5℃への昇温(所要時間:8時間)
と、5℃ から−5℃への降温(所要時間:16時間)を1サイクルとした操作を3ヶ月間行い、3ヶ月後の液体洗浄剤組成物の外観を目視観察し、下記基準により評価した。
< 評価基準>
1 点: 著しい沈殿または濁りが認められた。
2 点: 沈殿または濁りが認められた。
3 点: 若干の沈殿または濁りが認められた。
4 点: 外観の変化はほとんど認められなかった。
5 点: 外観の変化は全く認められなかった。
≪ Low temperature stability evaluation ≫
About Experimental Examples 1-2 for verifying the effect of the present invention and the comparative composition, 25 mL of the liquid detergent composition of each example was placed in a cylindrical glass bottle having a diameter of 35 mm and a height of 78 mm, and the lid was closed and sealed. In this state, the temperature was raised from -5 ° C to 5 ° C (required time: 8 hours)
In addition, an operation with a temperature drop from 5 ° C. to −5 ° C. (required time: 16 hours) as one cycle was performed for 3 months, and the appearance of the liquid detergent composition after 3 months was visually observed and evaluated according to the following criteria: did.
<Evaluation criteria>
1 point: Significant precipitation or turbidity was observed.
2 points: Precipitation or turbidity was observed.
3 points: Some precipitation or turbidity was observed.
4 points: Almost no change in appearance was observed.
5 points: No change in appearance was observed.

液体洗浄剤組成物及びその物性を表1に示す。

Figure 2011252051
The liquid detergent composition and its physical properties are shown in Table 1.
Figure 2011252051

*非イオン性界面活性剤:AEO-9(丸善化学工業(株)製)
*イミダゾリン型カチオン性界面活性剤:カチオンSF-75PA(三洋化成工業(株)製)
*共重合体:マリアリムHKM-50A(日油(株)製)
*プロテアーゼ:サビナーゼウルトラXL16(ノボザイムズジャパン(株)製)
*防腐剤:アクチサイドMV(ソージャパン(株)製)
* Nonionic surfactant: AEO-9 (Maruzen Chemical Co., Ltd.)
* Imidazoline-type cationic surfactant: Cationic SF-75PA (manufactured by Sanyo Chemical Industries)
* Copolymer: Marialim HKM-50A (manufactured by NOF Corporation)
* Protease: Sabinase Ultra XL16 (manufactured by Novozymes Japan)
* Antiseptic: Actiside MV (manufactured by So Japan Co., Ltd.)

Claims (5)

下記一般式(1)に示される非イオン性界面活性剤(A)30〜65重量%と
Figure 2011252051
[式中Rは炭素数12〜14の直鎖状のアルキル基であり、nはエチレンオキサイドの平均付加モル数を表し、8〜10である]
脂肪酸及びその塩(B)と陽イオン性界面活性剤(C)とハイドロトロープ剤(D)と(E)成分として、下記の一般式(2)
Figure 2011252051
[ただし、AOは炭素数2〜18のオキシアルキレン基の1種または2種以上の混合物で、2種以上のときはブロック状に付加していてもランダム状に付加していてもよく、R
のアルケニル基、R はアルキル基、mはオキシアルキレン基の平均付加モル数である。]
で示されるアルケニルエーテルと無水マレイン酸との共重合体で、この加水分解物及びこの塩を含有し、残りが水であることを特徴とする液体洗浄剤組成物である。
30 to 65% by weight of a nonionic surfactant (A) represented by the following general formula (1)
Figure 2011252051
[Wherein R 1 is a linear alkyl group having 12 to 14 carbon atoms, and n represents the average number of moles of ethylene oxide added and is 8 to 10]
Fatty acids and their salts (B), cationic surfactants (C), hydrotropes (D), and (E) as the following general formula (2)
Figure 2011252051
[However, AO 1 is a mixture of one or two or more oxyalkylene groups having 2 to 18 carbon atoms, and when it is two or more, it may be added in a block shape or randomly, R 2
Alkenyl group, R 3 is an alkyl group, and m is the average number of moles of oxyalkylene group added. ]
A liquid detergent composition characterized in that it is a copolymer of alkenyl ether and maleic anhydride represented by the formula (1), containing the hydrolyzate and salt thereof, and the rest being water.
前記非イオン性界面活性剤(A)を40〜55重量%含有する液体洗浄剤組成物。
A liquid detergent composition containing 40 to 55% by weight of the nonionic surfactant (A).
前記陽イオン性界面活性剤(C)として、イミダゾリン型陽イオン性界面活性剤を含有する液体洗浄剤組成物。
A liquid detergent composition containing an imidazoline type cationic surfactant as the cationic surfactant (C).
前記ハイドロトロープ剤(D)として、下記一般式(3)で示される液体洗浄剤組成物。
Figure 2011252051
[式中R4は炭素数2〜6のアルキル基であり、AOは炭素数2〜4のアルキレンオキサイドであり、kはアルキレンオキサイドの付加モル数で0〜4である。]
As said hydrotrope agent (D), the liquid cleaning composition shown by following General formula (3).
Figure 2011252051
[Wherein R 4 is an alkyl group having 2 to 6 carbon atoms, AO 2 is an alkylene oxide having 2 to 4 carbon atoms, and k is 0 to 4 in terms of the number of added moles of alkylene oxide. ]
前記ハイドロトロープ剤を2種類以上含有する液体洗浄剤組成物。 A liquid detergent composition containing two or more of the hydrotropes.
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