JP3830709B2 - Softener composition - Google Patents

Softener composition Download PDF

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Publication number
JP3830709B2
JP3830709B2 JP2000009724A JP2000009724A JP3830709B2 JP 3830709 B2 JP3830709 B2 JP 3830709B2 JP 2000009724 A JP2000009724 A JP 2000009724A JP 2000009724 A JP2000009724 A JP 2000009724A JP 3830709 B2 JP3830709 B2 JP 3830709B2
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component
weight
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softener composition
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JP2001200474A (en
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典明 牛尾
宏光 林
信之 小倉
秀次 田方
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Kao Corp
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Kao Corp
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Description

【0001】
【発明の属する技術分野】
本発明は洗浄後のすすぎ水に添加する繊維製品用の柔軟剤組成物に関する。
【0002】
【従来の技術及び発明が解決しようとする課題】
従来、柔軟剤組成物には長鎖アルキル基と1つの4級アンモニウム基又は3級アミノ基を有する水不溶性の化合物が主たる柔軟化成分として一般に用いられている。このような柔軟化成分は繊維製品に吸着しふっくら柔らかく仕上げる反面、繊維を油っぽくさせることが知られており、衣料の風合いの点で改善が望まれている。特開昭55−116877号公報にはジアルキル4級アンモニウム化合物と脂肪酸の混合物を用いた滑らかさを衣料に付与する柔軟剤組成物が開示されている。また、特開平9−111660号公報には分子中に2個以上の陽イオン基を持つ柔軟化成分と陰イオン界面活性剤を組み合わせた柔軟剤組成物が開示されている。しかしながら、このような組成物は繊維製品の風合いの点でいまだ満足できるものではない。
【0003】
また、液体洗浄剤に洗浄後の風合いを改善する目的で陽イオン界面活性剤を配合する試みがなされている。特開平10−60476号公報にはモノアルキルもしくはジアルキル型陽イオン界面活性剤を配合した組成物が開示されている。しかしながら、このような組成物は陽イオン界面活性剤以外の界面活性剤が多いため、洗浄効果は高いものの、衣料の風合いを満足できるレベルまで改善することはできない。
【0004】
従って本発明の課題は、柔軟効果に優れ、従来の柔軟剤組成物にはないさっぱりした風合いを繊維製品に付与する、洗浄後にすすぎ水に添加する繊維製品用の柔軟剤組成物を提供することにある。
【0005】
【課題を解決するための手段】
本発明は、(a)分子中に1つ以上の炭素数14〜36の炭化水素基を有し、且つ30℃における臨界ミセル濃度(c.m.c)が0.2〜40(mol/l×103)である4級アンモニウム化合物3〜50重量%、(b)炭素数10〜30の炭化水素基を有する陰イオン界面活性剤0.5〜30重量%、(c)非イオン界面活性剤0.1〜10重量%及び(d)水を含有し、(a)成分のカチオン当量と(b)成分のモル数の比が(a)成分のカチオン当量/(b)成分のモル数=2/3〜10/1(mol/mol)、(a)成分及び(b)成分以外の界面活性剤総量が10重量%以下である柔軟剤組成物に関する。
【0006】
【発明の実施の形態】
(a)成分
本発明は(a)成分として分子中に1つ以上、好ましくは1つ又は2つ、より好ましくは1つの炭素数14〜36の炭化水素基を有し、且つ30℃における臨界ミセル濃度(c.m.c)が0.2〜40、好ましくは0.2〜30、より好ましくは0.2〜20(mol/l×103)である4級アンモニウム化合物を用いる。本発明において、臨界ミセル濃度は、「日本化学会編 実験科学講座 13 表面・界面」(第4版、丸善株式会社)の211頁〜214頁に記載されている電気伝導度法、活量測定法、光散乱法、表面張力法、スペクトル変化法ならびに可溶化法を用いて測定する方法又は電気伝導度法による測定方法を用いることができ、いずれかの方法によって求められた値がこの数値範囲にあればよい。
【0007】
本発明の(a)成分として好ましいものは、炭素数14〜36のアルキル基を有するモノ長鎖アルキル型の4級アンモニウム塩であり、特に一般式(1)の化合物が良好である。
1−N+(R2)(R3)(R4) X- (1)
〔式中、R1は炭素数14〜36、好ましくは14〜24、より好ましくは14〜20の炭化水素基、好ましくはアルキル基又はアルケニル基であり、R2、R3、R4はそれぞれ独立に炭素数1〜5、好ましくは1〜3のアルキル基もしくはアルケニル基又はヒドロキシアルキル基である。X-は陰イオン、好ましくはハロゲンイオン、炭素数1〜3のアルキル硫酸イオン、硫酸イオンである。また、これらは上記臨界ミセル濃度の範囲に入るように選ばれる。〕。
【0008】
より具体的には炭素数14〜18のモノアルキル又はアルケニルトリメチルアンモニウム塩、モノアルキル又はアルケニルジメチルヒドロキシエチル4級アンモニウム塩、モノアルキル又はアルケニルメチルジヒドロキシエチル4級アンモニウム塩、モノアルキル又はアルケニルトリヒドロキシエチル4級アンモニウム塩、モノアルキル又はアルケニル−1,3−ジヒドロキシプロピルジメチル4級アンモニウム塩が好ましい化合物として挙げることができる。
【0009】
(b)成分
本発明では(b)成分として炭素数10〜30、好ましくは12〜24、より好ましくは14〜20の炭化水素基を有する陰イオン界面活性剤を使用する。具体的には、アルキルベンゼンスルホン酸、アルキル硫酸、ポリオキシアルキレンアルキルエーテル硫酸、オレフィンスルホン酸、アルカンスルホン酸、飽和又は不飽和脂肪酸、ポリオキシアルキレンアルキル又はアルケニルエーテルカルボン酸、α−スルホ脂肪酸、α−スルホ脂肪酸エステル及びこれらの塩などを挙げることができる。これらの中でもアルキル硫酸、エチレンオキシド平均付加モル数が1〜6、好ましくは1〜4であるポリオキシエチレンアルキルエーテル硫酸、飽和又は不飽和脂肪酸及びこれらの塩から選ばれる1種以上を配合することが好ましい。
【0010】
(c)成分
本発明では、貯蔵安定性の点から、(c)成分として非イオン界面活性剤を配合する。非イオン界面活性剤としては炭素数8〜20のアルキル基又はアルケニル基を1つ以上有するポリオキシアルキレンアルキルエーテルが好ましく、特に一般式(2)の非イオン界面活性剤が良好である。
21−T−[(R22O)p−H]q (2)
〔式中、R21は、炭素数10〜18、好ましくは12〜18のアルキル基又はアルケニル基であり、R22は炭素数2又は3のアルキレン基であり、好ましくはエチレン基である。また、pは平均付加モル数であり、2〜100、好ましくは5〜40、特に好ましくは20〜40の数を示す。Tは−O−、−N−又は−CON−であり、Tが−O−の場合はqは1であり、Tが−N−又は−CON−の場合はqは2である。〕。
【0011】
一般式(2)の化合物の具体例として以下の化合物を挙げることができる。
21−O−(C24O)r−H
〔式中、R21は前記と同じ意味であり、rは平均付加モル数であり、8〜100、好ましくは10〜80の数である。〕
21−O−(C24O)s(C36O)t−H
〔式中、R21は前記と同じ意味であり、s及びtは平均付加モル数であり、それぞれ独立に2〜40、好ましくは5〜40の数であり、エチレンオキシドとプロピレンオキシドはランダムあるいはブロック付加体であってもよい。〕
【0012】
【化1】

Figure 0003830709
【0013】
(柔軟剤組成物)
本発明の柔軟剤組成物は(a)成分を3〜50重量%、好ましくは8〜40重量%、特に好ましくは10〜35重量%含有する。また、(b)成分を0.5〜30重量%、好ましくは1〜20重量%、特に好ましくは5〜20重量%含有する。さらに(c)成分を0.1〜10重量%、好ましくは0.1〜8重量%、特に好ましくは0.1〜5重量%含有する。また、(a)成分及び(b)成分以外の界面活性剤の総量は10重量%以下、好ましくは0.1〜8重量%、特に0.5〜5重量%である。
【0014】
また、優れた柔軟効果を得るために、(a)成分のカチオン当量(カチオン基のモル数)と(b)成分のモル数の比が(a)成分のカチオン当量/(b)成分のモル数=2/3〜10/1(mol/mol)、好ましくは1/1〜10/1(mol/mol)である。更に、(a)成分と(c)成分の重量比は、(c)/(a)=1/50〜1/2、特に1/30〜1/4が良好である。
【0015】
本発明の柔軟剤組成物は上記(a)〜(c)成分と(d)成分である水とを含有する組成物であり、蒸留水やイオン交換水などの、水に含まれるイオン性物質を除去した水を使用することが望ましい。本発明の柔軟剤組成物は、貯蔵安定性の点から、(d)水を40〜95重量%、好ましくは50〜90重量%含有することが望ましい。
【0016】
また、本発明の柔軟剤組成物は、20℃におけるpHが1〜7、特に1.5〜6であることが貯蔵安定性の点から好ましい。
【0017】
本発明の柔軟剤組成物には、貯蔵安定性をさらに向上させる目的で油成分を配合することが望ましい。油成分としては炭素数8〜20、好ましくは10〜18の脂肪酸と多価アルコールのエステル化合物が好ましく、特にトリグリセライド、ジグリセライド、モノグリセライド、ペンタエリスリトールのモノ、ジ、トリエステル、ソルビタンエステルが好ましい。このような化合物は組成物中に0.05〜10重量%、特に0.1〜5重量%配合するのが好ましい。
【0018】
本発明の柔軟剤組成物には、さらに下記式(3)から求められるδが20〜40、好ましくは21〜35、特に好ましくは21〜27の化合物を配合することが貯蔵安定性の点から望ましい。また、分子量が100〜400、好ましくは130〜300、特には150〜300であり、沸点が150℃以上、好ましくは200〜350℃、特には240〜350のものが良好である。
δ=[(14820+99.2Tb+0.084Tb2)/V]1/2 (3)
〔式中、Tbは沸点(°K)、Vは20℃におけるモル容積である。〕。
【0019】
ここで本発明のδは溶解度パラメータに近似するものであり「溶液と溶解度」(篠田耕三著、平成3年4月30日、丸善(株)発行)の78頁〜82頁に記載されているものである。
【0020】
本発明のδ値を満足する化合物として好ましい化合物は、アルキル基の炭素数が3〜8のアルキルグリセリルエーテル、ジ又はトリエチレングルコールモノフェニルエーテル、アルキル基の炭素数が2〜8のジ又はトリエチレングルコールモノアルキルエーテル、1,6−ヘキサンジオール、2,5−ヘキサンジオール、3−ペンタノン、シクロヘキサノール、2−ヘキサノール、1−オクタノールを挙げることができ、これらの中でも特にアルキル基の炭素数が2〜5のアルキルグリセリルエーテル、アルキル基の炭素数が2〜5のジ又はトリエチレングルコールモノアルキルエーテル、トリエチレングリコールモノフェニルエーテルが好ましい。
【0021】
本発明の柔軟剤組成物には、貯蔵安定性の点から無機塩、例えば塩化カルシウムなどを0〜1000ppm、好ましくは10〜500ppm添加することが望ましい。但し、脂肪酸塩類などの界面活性剤にはナトリウム塩やカリウム塩が含まれているが、このような界面活性剤の使用によって組成物に混入する無機塩は上記制限を受けるものではない。
【0022】
本発明の柔軟剤組成物には、通常柔軟剤組成物に配合されるシリコーン、香料、色素等の成分を配合しても差し支えない。
【0023】
【実施例】
実施例
<柔軟剤組成物>
下記の化合物を用いて表1の柔軟剤組成物を調製した。
・a−1:n−ヘキサデシルトリメチルアンモニウムクロリド(c.m.c=1.3mol/l×103
・a−2:オクタデシルトリメチルアンモニウムクロリド(c.m.c=0.4mol/l×103
・a−3:テトラデシルトリメチルアンモニウムクロリド(c.m.c=4.0mol/l×103
・a−4:n−ヘキサデシルトリヒドロキシエチルアンモニウムクロリド(c.m.c=1.3mol/l×103
・a’−1:ジオクチルジメチルアンモニウムクロリド(c.m.c=27mol/l×103
・a’−2:n−デシルトリメチルアンモニウムクロリド(c.m.c=65mol/l×103
・a’−3:ジ−n−ドデシルジメチルアンモニウムクロリド(c.m.c=0.1mol/l×103
・a’−4:ジ−n−オクタデシルジメチルアンモニウムクロリド(c.m.c=0.01mol/l×103以下)
・b−1:ステアリル硫酸エステルナトリウム
・b−2:ポリオキシエチレン(エチレンオキサイド平均付加モル数1)ステアリルエーテル硫酸ナトリウム
・b−3:ステアリン酸ナトリウム
・b−4:炭素数20のゲルベタイプアルコールの硫酸エステルナトリウム
・c−1:炭素数12の飽和アルコールにエチレンオキサイドを平均21モル付加さたもの
・c−2:モノラウリルアミンにエチレンオキシドを平均20モル付加させたもの
・e−1:ステアリン酸モノ、ジ、トリグリセリド混合物(モノ:ジ:トリ=60:35:5)
・f−1:C817OCH2CH(OH)CH2OH(δ=21.96)
・f−2:トリエチレングリコールモノフェニルエーテル(δ=20.92)
・f−3:1,6−ヘキサンジオール(δ=27.23)
・g−1:塩化カルシウム
・g−2:色素(アシッドブルー9)
・g−3:香料。
【0024】
<柔軟処理方法>
バスタオル(木綿100%)2枚を市販の弱アルカリ性洗剤(花王(株)製アタック)を用いて洗濯機で洗浄した(東芝製2槽式洗濯機VH−360S1、洗剤濃度0.0667重量%、水道水30L使用、水温20℃、10分間)。その後洗浄液を排出し、1分間脱水後、30Lの水道水を注水して5分間すすぎを行い、排水後1分間脱水を行った。その後再度30Lの水道水を注水した後、表1の組成物7gを添加し5分間攪拌した。その後、脱水し、湿度70%、25℃の恒温室で12時間乾燥した。
【0025】
<風合いの評価>
上記処理を行ったバスタオルの風合いを、10人のパネラー(30代男性5人、20代女性5人)によるさっぱり感と柔軟効果の評価で試験した。各評価基準は下記の通りであり、それらの平均点を求め、平均点が1未満を○、1以上1.5未満を△、1.5以上を×として表1に示した。
▲1▼さっぱり感
さっぱりした風合いであり油っぽさが全くない…0
やや油っぽさがあるがさっぱりした風合いがある。…1
油っぽい風合いがする…2
非常に油っぽい風合いである…3
▲2▼柔軟効果
標準に比べてふっくら柔らかい仕上がり……0
標準に比べてややふっくら軟らかである……1
標準とほぼ同等の仕上がりである。……2
標準よりかたくごわつきがある……3
なお標準とは洗浄後のすすぎの段階で表1の柔軟剤組成物を使用せず、脱水乾燥させたものである。
【0026】
【表1】
Figure 0003830709
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fabric softener composition added to rinsed water after washing.
[0002]
[Prior art and problems to be solved by the invention]
Conventionally, a water-insoluble compound having a long-chain alkyl group and one quaternary ammonium group or tertiary amino group is generally used as a main softening component in a softener composition. Such a softening component is adsorbed on a textile product to finish it softly, while it is known to make the fiber oily, and improvement is desired in terms of clothing texture. Japanese Patent Application Laid-Open No. 55-116877 discloses a softener composition that imparts smoothness to clothing using a mixture of a dialkyl quaternary ammonium compound and a fatty acid. JP-A-9-111660 discloses a softener composition in which a softening component having two or more cationic groups in an molecule and an anionic surfactant are combined. However, such compositions are still not satisfactory in terms of the texture of the textile product.
[0003]
In addition, attempts have been made to add a cationic surfactant to the liquid detergent for the purpose of improving the texture after washing. Japanese Patent Application Laid-Open No. 10-60476 discloses a composition containing a monoalkyl or dialkyl type cationic surfactant. However, since such a composition has many surfactants other than the cationic surfactant, the cleaning effect is high, but the texture of clothing cannot be improved to a satisfactory level.
[0004]
Accordingly, an object of the present invention is to provide a softener composition for textiles which is excellent in softening effect and imparts a fresh texture not found in conventional softener compositions to textiles, which is added to rinsing water after washing. It is in.
[0005]
[Means for Solving the Problems]
The present invention includes (a) one or more hydrocarbon groups having 14 to 36 carbon atoms in the molecule, and a critical micelle concentration (cmc) at 30 ° C. of 0.2 to 40 (mol / 1 × 10 3 ) quaternary ammonium compound 3 to 50% by weight, (b) 0.5 to 30% by weight of an anionic surfactant having a hydrocarbon group having 10 to 30 carbon atoms, (c) a nonionic interface 0.1 to 10% by weight of activator and (d) water, and the ratio of the cation equivalent of component (a) to the number of moles of component (b) is the cation equivalent of component (a) / mole of component (b) The present invention relates to a softener composition in which the total amount of surfactants other than the number = 2/3 to 10/1 (mol / mol), the components (a) and (b) is 10% by weight or less.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
(A) Component In the present invention, the component (a) has one or more, preferably one or two, and more preferably one hydrocarbon group having 14 to 36 carbon atoms in the molecule, and is critical at 30 ° C. A quaternary ammonium compound having a micelle concentration (cmc) of 0.2 to 40, preferably 0.2 to 30, more preferably 0.2 to 20 (mol / l × 10 3 ) is used. In the present invention, the critical micelle concentration is determined by the electric conductivity method and activity measurement described in pages 211 to 214 of “Chemical Society of Japan, Experimental Science Course 13 Surface / Interface” (4th edition, Maruzen Co., Ltd.). Method, light scattering method, surface tension method, spectral change method and solubilization method or electric conductivity method can be used, and the value obtained by any method is within this numerical range. If it is in.
[0007]
What is preferable as the component (a) of the present invention is a mono long chain alkyl type quaternary ammonium salt having an alkyl group having 14 to 36 carbon atoms, and the compound of the general formula (1) is particularly good.
R 1 −N + (R 2 ) (R 3 ) (R 4 ) X (1)
[Wherein, R 1 is a hydrocarbon group having 14 to 36 carbon atoms, preferably 14 to 24, more preferably 14 to 20 carbon atoms, preferably an alkyl group or an alkenyl group, and R 2 , R 3 and R 4 are respectively Independently, it is an alkyl group, alkenyl group or hydroxyalkyl group having 1 to 5 carbon atoms, preferably 1 to 3 carbon atoms. X is an anion, preferably a halogen ion, an alkyl sulfate ion having 1 to 3 carbon atoms, or a sulfate ion. These are selected to fall within the above critical micelle concentration range. ].
[0008]
More specifically, C14-18 monoalkyl or alkenyltrimethylammonium salt, monoalkyl or alkenyldimethylhydroxyethyl quaternary ammonium salt, monoalkyl or alkenylmethyldihydroxyethyl quaternary ammonium salt, monoalkyl or alkenyltrihydroxyethyl Quaternary ammonium salts, monoalkyl or alkenyl-1,3-dihydroxypropyldimethyl quaternary ammonium salts can be mentioned as preferred compounds.
[0009]
(B) Component In the present invention, an anionic surfactant having a hydrocarbon group having 10 to 30, preferably 12 to 24, more preferably 14 to 20 carbon atoms is used as the (b) component. Specifically, alkylbenzene sulfonic acid, alkyl sulfuric acid, polyoxyalkylene alkyl ether sulfuric acid, olefin sulfonic acid, alkane sulfonic acid, saturated or unsaturated fatty acid, polyoxyalkylene alkyl or alkenyl ether carboxylic acid, α-sulfo fatty acid, α- Examples thereof include sulfo fatty acid esters and salts thereof. Among these, one or more selected from alkylsulfuric acid, polyoxyethylene alkyl ether sulfuric acid having an average added mole number of ethylene oxide of 1 to 6, preferably 1 to 4, saturated or unsaturated fatty acids, and salts thereof may be blended. preferable.
[0010]
(C) component In this invention, a nonionic surfactant is mix | blended as a (c) component from the point of storage stability. As the nonionic surfactant, a polyoxyalkylene alkyl ether having at least one alkyl group or alkenyl group having 8 to 20 carbon atoms is preferable, and the nonionic surfactant represented by the general formula (2) is particularly preferable.
R 21 -T - [(R 22 O) p -H] q (2)
[Wherein, R 21 represents an alkyl group or an alkenyl group having 10 to 18 carbon atoms, preferably 12 to 18 carbon atoms, and R 22 represents an alkylene group having 2 or 3 carbon atoms, preferably an ethylene group. Moreover, p is an average addition mole number, and shows the number of 2-100, Preferably it is 5-40, Most preferably, it is 20-40. T is —O—, —N— or —CON—. When T is —O—, q is 1, and when T is —N— or —CON—, q is 2. ].
[0011]
Specific examples of the compound of the general formula (2) include the following compounds.
R 21 —O— (C 2 H 4 O) r —H
[Wherein, R 21 has the same meaning as described above, and r is the average number of moles added, which is 8 to 100, preferably 10 to 80. ]
R 21 —O— (C 2 H 4 O) s (C 3 H 6 O) t —H
[In the formula, R 21 has the same meaning as described above, s and t are the average number of added moles, each independently 2 to 40, preferably 5 to 40, and ethylene oxide and propylene oxide are random or block. It may be an adduct. ]
[0012]
[Chemical 1]
Figure 0003830709
[0013]
(Softener composition)
The softener composition of the present invention contains the component (a) in an amount of 3 to 50% by weight, preferably 8 to 40% by weight, particularly preferably 10 to 35% by weight. Further, the component (b) is contained in an amount of 0.5 to 30% by weight, preferably 1 to 20% by weight, particularly preferably 5 to 20% by weight. Further, the component (c) is contained in an amount of 0.1 to 10% by weight, preferably 0.1 to 8% by weight, particularly preferably 0.1 to 5% by weight. Further, the total amount of the surfactants other than the component (a) and the component (b) is 10% by weight or less, preferably 0.1 to 8% by weight, particularly 0.5 to 5% by weight.
[0014]
In order to obtain an excellent softening effect, the ratio of the cation equivalent of component (a) (number of moles of cation group) to the number of moles of component (b) is the cation equivalent of component (a) / mole of component (b). Number = 2/3 to 10/1 (mol / mol), preferably 1/1 to 10/1 (mol / mol). Further, the weight ratio of the component (a) to the component (c) is preferably (c) / (a) = 1/50 to 1/2, particularly 1/30 to 1/4.
[0015]
The softener composition of the present invention is a composition containing the components (a) to (c) and water (d), and is an ionic substance contained in water, such as distilled water or ion-exchanged water. It is desirable to use water from which water has been removed. The softener composition of the present invention contains (d) 40 to 95% by weight, preferably 50 to 90% by weight of water from the viewpoint of storage stability.
[0016]
Moreover, it is preferable from the point of storage stability that the softening agent composition of this invention is pH 1-20 in 20 degreeC, especially 1.5-6.
[0017]
The softener composition of the present invention preferably contains an oil component for the purpose of further improving storage stability. As the oil component, an ester compound of a fatty acid having 8 to 20 carbon atoms, preferably 10 to 18 carbon atoms and a polyhydric alcohol is preferable, and triglyceride, diglyceride, monoglyceride, pentaerythritol mono, di, triester and sorbitan ester are particularly preferable. Such a compound is preferably mixed in the composition in an amount of 0.05 to 10% by weight, particularly 0.1 to 5% by weight.
[0018]
From the viewpoint of storage stability, the softener composition of the present invention may further contain a compound having a δ of 20 to 40, preferably 21 to 35, particularly preferably 21 to 27 calculated from the following formula (3). desirable. The molecular weight is 100 to 400, preferably 130 to 300, particularly 150 to 300, and the boiling point is 150 ° C. or higher, preferably 200 to 350 ° C., particularly 240 to 350.
δ = [(14820 + 99.2Tb + 0.084Tb 2 ) / V] 1/2 (3)
[In the formula, Tb is a boiling point (° K), and V is a molar volume at 20 ° C. ].
[0019]
Here, δ of the present invention approximates the solubility parameter, and is described in pages 78 to 82 of “Solution and Solubility” (published by Kozo Shinoda, April 30, 1991, published by Maruzen Co., Ltd.). Is.
[0020]
Preferred compounds satisfying the δ value of the present invention are alkyl glyceryl ethers having 3 to 8 carbon atoms in the alkyl group, di- or triethylene glycol monophenyl ether, di- or tri-alkyl having 2 to 8 carbon atoms in the alkyl group. Examples include triethylene glycol monoalkyl ether, 1,6-hexanediol, 2,5-hexanediol, 3-pentanone, cyclohexanol, 2-hexanol, and 1-octanol. Alkyl glyceryl ether having 2 to 5 carbon atoms, di- or triethylene glycol monoalkyl ether having 2 to 5 carbon atoms in the alkyl group, and triethylene glycol monophenyl ether are preferable.
[0021]
It is desirable to add 0 to 1000 ppm, preferably 10 to 500 ppm of an inorganic salt such as calcium chloride from the viewpoint of storage stability in the softener composition of the present invention. However, although surfactants such as fatty acid salts include sodium salts and potassium salts, inorganic salts mixed into the composition by using such surfactants are not subject to the above restrictions.
[0022]
In the softener composition of the present invention, components such as silicone, fragrance, and pigment usually blended in the softener composition may be blended.
[0023]
【Example】
Examples <Softener composition>
The softener composition of Table 1 was prepared using the following compounds.
A-1: n-hexadecyltrimethylammonium chloride (cmc = 1.3 mol / l × 10 3 )
A-2: Octadecyltrimethylammonium chloride (cmc = 0.4 mol / l × 10 3 )
A-3: tetradecyltrimethylammonium chloride (cmc = 4.0 mol / l × 10 3 )
A-4: n-hexadecyltrihydroxyethylammonium chloride (cmc = 1.3 mol / l × 10 3 )
A′-1: Dioctyldimethylammonium chloride (cmc = 27 mol / l × 10 3 )
A′-2: n-decyltrimethylammonium chloride (cmc = 65 mol / l × 10 3 )
A′-3: di-n-dodecyldimethylammonium chloride (cmc = 0.1 mol / l × 10 3 )
A′-4: di-n-octadecyldimethylammonium chloride (cmc = 0.01 mol / l × 10 3 or less)
B-1: Sodium stearyl sulfate ester b-2: Polyoxyethylene (ethylene oxide average addition mole number 1) sodium stearyl ether sulfate b-3: Sodium stearate b-4: Gerber type alcohol having 20 carbon atoms Sodium sulfate ester of c-1: 21 mole average of ethylene oxide added to saturated alcohol having 12 carbon atoms c-2: 20 mole average of ethylene oxide added to monolaurylamine e-1: stearin Acid mono, di, triglyceride mixture (mono: di: tri = 60: 35: 5)
F-1: C 8 H 17 OCH 2 CH (OH) CH 2 OH (δ = 21.96)
F-2: triethylene glycol monophenyl ether (δ = 20.92)
F-3: 1,6-hexanediol (δ = 27.23)
・ G-1: Calcium chloride ・ g-2: Dye (Acid Blue 9)
-G-3: A fragrance | flavor.
[0024]
<Flexible processing method>
Two bath towels (100% cotton) were washed with a washing machine using a commercially available weak alkaline detergent (attack made by Kao Corporation) (Toshiba 2-tank washing machine VH-360S1, detergent concentration 0.0667% by weight) 30L tap water, water temperature 20 ° C, 10 minutes). Thereafter, the washing liquid was discharged, dehydrated for 1 minute, poured 30 L of tap water, rinsed for 5 minutes, and dehydrated for 1 minute after drainage. Thereafter, 30 L of tap water was poured again, and then 7 g of the composition shown in Table 1 was added and stirred for 5 minutes. Then, it dehydrated and dried for 12 hours in a constant temperature room with a humidity of 70% and 25 ° C.
[0025]
<Evaluation of texture>
The texture of the bath towel subjected to the above-described treatment was tested by a refreshing feeling and evaluation of a softening effect by 10 panelists (5 men in their 30s and 5 women in their 20s). Each evaluation standard is as follows, and the average points thereof were determined, and the average points are shown in Table 1 as ○ when the average point is less than 1, Δ when 1.5 or more and less than 1.5, and × when 1.5 or more.
▲ 1 ▼ Refreshing texture and no oiliness ... 0
It is slightly oily but has a refreshing texture. ... 1
Oily texture ... 2
Very oily texture ... 3
▲ 2 ▼ Finish softer than the standard for softening effect .... 0
Softer than standard ... 1
The finish is almost the same as the standard. ...... 2
Harder than standard ... 3
Note that the standard is a product which is dehydrated and dried without using the softener composition in Table 1 at the stage of rinsing after washing.
[0026]
[Table 1]
Figure 0003830709

Claims (2)

(a)下記一般式(1)で表され、且つ30℃における臨界ミセル濃度(c.m.c)が0.2〜40(mol/l×10)である4級アンモニウム化合物3〜50重量%、(b)炭素数10〜30の炭化水素基を有する陰イオン界面活性剤0.5〜30重量%、(c)非イオン界面活性剤0.1〜10重量%及び(d)水を含有し、(a)成分のカチオン当量と(b)成分のモル数の比が(a)成分のカチオン当量/(b)成分のモル数=2/3〜10/1(mol/mol)、(a)成分及び(b)成分以外の界面活性剤総量が10重量%以下である柔軟剤組成物。
−N ( )( )( ) (1)
〔式中、R は炭素数14〜36の炭化水素基であり、R 、R 、R はそれぞれ独立に炭素数1〜5のアルキル基もしくはアルケニル基又はヒドロキシアルキル基である。X は陰イオンである。また、これらは上記臨界ミセル濃度の範囲に入るように選ばれる。〕
(A) Quaternary ammonium compounds 3 to 50 represented by the following general formula (1) and having a critical micelle concentration (cmc) at 30 ° C. of 0.2 to 40 (mol / l × 10 3 ) % By weight, (b) 0.5 to 30% by weight of an anionic surfactant having a hydrocarbon group having 10 to 30 carbon atoms, (c) 0.1 to 10% by weight of a nonionic surfactant and (d) water The ratio of the cation equivalent of component (a) to the number of moles of component (b) is the cation equivalent of component (a) / number of moles of component (b) = 2/3 to 10/1 (mol / mol) A softener composition in which the total amount of the surfactant other than the components (a) and (b) is 10% by weight or less.
R 1 −N + ( R 2 ) ( R 3 ) ( R 4 ) X (1)
[Wherein, R 1 is a hydrocarbon group having 14 to 36 carbon atoms, and R 2 , R 3 , and R 4 are each independently an alkyl group, an alkenyl group, or a hydroxyalkyl group having 1 to 5 carbon atoms. X is an anion. These are selected to fall within the above critical micelle concentration range. ]
(a)成分と(c)成分の重量比が、(c)/(a)=1/50〜1/2である請求項1記載の柔軟剤組成物。The softener composition according to claim 1, wherein the weight ratio of the component (a) to the component (c) is (c) / (a) = 1/50 to 1/2.
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