JP4304390B2 - Cleaning fluid - Google Patents

Description

【００１２】
（式中、Ｒ及びＲ’は、ヤシ油脂肪酸から誘導される炭素数８〜１８のアルキル基を示し、Ｘはハロゲン原子を示す。）
で示されるカチオン系界面活性剤、及びイソパラフィン系炭化水素を含むことを特徴とする掃除用液剤。
（２）上記イソパラフィン系炭化水素が、８０℃における蒸気圧が１０〜２００ｍｍＨｇであるものである（１）記載の掃除用液剤。
（３）イソパラフィン系炭化水素が、式
【００１３】
【化４】

【００１４】
（式中、ｎは２〜４の整数を示す。）
で示されるものである、（１）又は（２）記載の掃除用液剤。
（４）カチオン系界面活性剤を０．２〜５重量％、及びイソパラフィン系炭化水素を９５〜９９．８重量％の割合で含有することを特徴とする（１）乃至（３）のいずれかに記載の掃除用液剤。
（５）さらにアルコール又はノニオン系界面活性剤のいずれか少なくとも１種を含む（１）乃至（４）のいずれかに記載の掃除用液剤。
（６）カチオン系界面活性剤を０．２〜５重量％、イソパラフィン系炭化水素を７５〜９８．８重量％、及びアルコールを０．５〜１０重量％若しくはノニオン系界面活性剤を０．５〜１０重量％のいずれか少なくとも一方を含有することを特徴とする（５）記載の掃除用液剤。
【００１５】
【発明の実施の形態】
本発明の掃除用液剤は、特定のカチオン系界面活性剤をイソパラフィン系炭化水素と組み合わせて含有することを特徴とするものである。
【００１６】
本発明で用いられるカチオン系界面活性剤としては、種々あるカチオン系界面活性剤の中でも、特に下式で表されるジアルキルジメチル第４級アンモニウム塩系の界面活性剤を挙げることができる。
【００１７】
【化５】

【００１８】
（式中、Ｒ及びＲ’は炭素数８〜１８のアルキル基を示し、Ｘはハロゲン原子を示す。）
上記式中において、Ｒ及びＲ’は、ヤシ油脂肪酸から誘導される炭素数８〜１８の各種のアルキル基を示し、具体的には、オクチル基、デシル基、ドデシル基、テトラデシル基、ヘキサデシル基、オクタデシル基を挙げることができる。なお、Ｒ及びＲ’は、互いに異なるアルキル基であってもよい。
【００１９】
本発明で用いられるカチオン系界面活性剤は、上記いずれかのジアルキルジメチル第４級アンモニウム塩を１種単独で含有するものでもよいが、２種以上のジアルキルジメチル第４級アンモニウム塩を含有する混合物であってもよく、その組み合わせ並びに配合割合はヤシ油に含まれる各種脂肪酸並びにその配合割合に応じて定めることができる。
【００２０】
一般的にヤシ油の主成分であるラウリン酸グリセリドの組成は、カプリル酸（５〜９％）、カプリン酸（６〜１０％）、ラウリン酸（４４〜５２％）、ミリスチン酸（１３〜１９％）、パルミチン酸（８〜１１％）、ステアリン酸（１〜３％）、オレイン酸（４〜８％）及びリノール酸（２〜４％）である。従って、本発明で用いられるカチオン系界面活性剤の好ましい態様として、この脂肪酸の配合割合に従って各種のジアルキルジメチル第４級アンモニウム塩を含有する混合物を挙げることができる。本明細書において、このようなジアルキルジメチル第４級アンモニウム塩の混合物を、単にジ椰子油アルキルジメチルアンモニウム塩ともいう。
【００２１】
より好ましいジ椰子油アルキルジメチルアンモニウム塩として好ましくは、表１の組成のものを挙げることができる。
【００２２】
【表１】

【００２３】
また本発明においてハロゲン原子とは、塩素原子、臭素原子、ヨウ素原子を意味するが、好ましくは塩素原子である。
【００２４】
かかるカチオン系界面活性剤は、当業者によれば常法に従って調製することもできるが、簡便には商業的に入手することができる。
【００２５】
本発明の掃除用液剤に配合するカチオン系界面活性剤の割合としては、特に制限されないが、通常０．２〜５重量％、好ましくは０．５〜２重量％（有効成分換算）の割合を例示することができる。配合量が５重量％を大きく越えると皮膚への刺激性が強くなる傾向があり、また０．２重量％を大きく下回ると持続性が充分な帯電防止効果が得られない傾向にあり、このため掃除用液剤としての実用性が低下する。
【００２６】
本発明の掃除用液剤には、上記カチオン系界面活性剤と組み合わせてイソパラフィン系炭化水素が配合される。
【００２７】
イソパラフィン系炭化水素としては一般に溶剤として使用されるものを広く挙げることができ、特に制限されるものではないが、具体的にはＣ_ｎＨ_２ｎ＋２（ｎは４〜１６の整数）で示されるものを挙げることができ、好適には炭素数（ｎ）が８〜１２の範囲にあるものである。これらは一種単独からなるものであっても、また２種以上の混合物であってもよい。
【００２８】
好ましくは下式
【００２９】
【化６】

【００３０】
（式中、ｎは２〜４の整数を示す。）
で示されるものを主成分として含むものを例示することができる。かかるイソパラフィン系炭化水素は、ｎが２〜４の範囲にあるものであればよく、一種単独からなるものであっても、また２種以上の混合物であってもよい。
【００３１】
具体的には、上記炭化水素単位の３量体（ｎ＝３）及び４量体（ｎ＝４）のいずれか少なくとも一方を７０％以上、好ましくは８０％以上含むものを挙げることができ、例えば、３量体を７５〜９５重量％及び２量体を５〜２５重量％、好ましくは３量体を８５〜９０重量％及び２量体を１０〜１５重量％の割合で含むイソパラフィン系炭化水素；並びに３量体を５〜３０重量％及び４量体を７０〜９５重量％、好ましくは３量体を１５〜２０重量％及び４量体を８０〜８５重量％の割合で含むイソパラフィン系炭化水素を挙げることができる。
【００３２】
また好適なイソパラフィン系炭化水素としては、８０℃での蒸発圧が１〜５００ｍｍＨｇ、好ましくは１０〜２００ｍｍＨｇ、より好ましくは１０〜１００ｍｍＨｇ乃至は２０〜１００ｍｍＨｇであるものを例示することができる。蒸気圧がかかる範囲のイソパラフィン系炭化水素を用いることにより、ティッシュ等の基布に用時取り出して清拭掃除を行うのに適した掃除液を調製することができる。すなわち、一般に掃除用具（清拭用具）は、埃や塵等を吸着（付着）するために適度に湿潤していることが望ましい一方で、清拭された掃除対象物は拭き跡を残すことなく速やかに乾燥することが望まれる。本発明によれば、上記の蒸発圧を有するイソパラフィン系炭化水素を使用することにより、上記相反する効果を満たす、用時塗布タイプの掃除用液剤を調製することができる。すなわち、上記イソパラフィン系炭化水素及び前記の特定のカチオン系界面活性剤を含有する本発明の掃除用液剤によれば、適度な湿気を有して着塵性を保持しながらも、清拭表面に拭きムラやべとつき感を残さず拭き仕上がり感及び埃塵能力の優れた掃除用具を用時に調製することができる。よって同一のイソパラフィンであれば、全体に対するイソパラフィンの配合量が多いほど速やかに薬剤を乾燥させることができる。
【００３３】
本発明で用いられるイソパラフィン系炭化水素は、高度に精製されている必要はないが、掃除対象物に臭いを残さないためにも臭気が殆どないか少なく、また掃除対象物が変色や変質しないように化学的に不活性であることが好ましい。さらに皮膚や粘膜への刺激性がなく安全性の高いものであることが好ましい。また、本発明の掃除用液剤は家具等の塗装表面にも用いられることから、木材塗装膜に対して影響を与えないものであることが好ましい。かかるものとしては７０〜１００℃、好ましくは８０〜９０℃といった比較的高いアニリン点を有するイソパラフィン系炭化水素を挙げることができる（ＪＩＳ−Ｋ２２５６）。
【００３４】
イソパラフィン系炭化水素として、より簡便には商業的に入手できるものを使用することができる。
【００３５】
かかるイソパラフィン系炭化水素は、本発明の掃除用液剤に７５〜９９．８重量％、好ましくは９５〜９８．０重量％の範囲から選択される割合で配合して用いられる。配合量が７５重量％を大きく下回ると掃除液の乾燥に時間が長くかかる傾向にある。
【００３６】
本発明の掃除用液剤の成分には、上記成分に加えてアルコールを配合することができる。アルコールとしては、イソプロピルアルコールやエタノール等の低級アルコール、並びに３−メトキシ−３−メチル−１−ブタノール等の高級アルコールを挙げることができるが、中でも３−メトキシ−３−メチル−１−ブタノールが好適に用いられる。かかる高級アルコールの配合することにより、前述するカチオン系界面活性剤とイソパラフィン系炭化水素の相溶性を高めて液剤を可溶化し、塩の発生を抑制して液剤成分の安定性を向上させることができる。
【００３７】
上記アルコールを配合する場合、その配合割合は制限はされないが、掃除用液剤中に通常０．５〜１０重量％、好ましくは２〜７重量％の割合で配合することができる。配合割合が１０重量％を大きく越えると掃除対象物の素材によっては悪影響がある場合もあり、また０．５重量％を大きく下回ると液剤の安定性が低下する傾向がある。
【００３８】
また更に本発明の掃除用液剤には、カチオン系界面活性剤及びイソパラフィン系炭化水素及び／又はアルコールといった上記成分に加えて、ノニオン系界面活性剤を配合することもできる。かかるノニオン系界面活性剤の配合により帯電防止効果を損なうことなく、一層の防錆効果を付与することができる。
【００３９】
ノニオン系界面活性剤としては、特に制限されないが、帯電防止効果を有するものを好適に挙げることができる。具体的にはこれらのノニオン系界面活性剤にはジエタノールアミド（１：１型）、オレイン酸ジエタノールアミド（１：１型）等の脂肪酸アルカノールアミド；モノオキシエチレンドデシルアミンやポリオキシエチレンドデシルアミンなどの（ポリ）オキシエチレン脂肪酸アミドといった含窒素型のノニオン系界面活性剤を含めることができる。
【００４０】
上記ノニオン系界面活性剤を配合する場合、その配合量は制限されないが、掃除用液剤中に通常０．５〜１０重量％、好ましくは好ましくは２〜５重量％の割合で配合することができる。
【００４１】
本発明の掃除用液剤には、本発明の目的を阻害しない限り、当該商品分野で用いられる成分が配合されていてもよい。かかるものとしては、例えば殺菌剤、防腐剤、抗菌剤、防カビ剤、消臭剤、着香料、シリコン系撥水剤、洗浄剤等を例示することができる。
【００４２】
本発明の掃除用液剤は、一般に掃除用液剤に使用される容器に収容、充填して使用することができる。容器としては、特に制限されないが、その一例としては上部キャップ部分に孔が形成されており該部分から液状、霧状又は泡状にして液剤を供給するディスペンサー容器を挙げることができ、具体的にはトリガー付き容器、スクイズフォーマー容器、ポンプ式スプレー容器、ガン式スプレー容器、エアゾール容器、スクイズスプレー容器等を挙げることができる。好ましくは、経済性、環境適合性の観点及びティッシュペーパー表面に均一に吐出できることなどからポンプ式のスプレー容器、スクイズスプレー容器を挙げることができる。特に限定はされないが、好ましくは一回吐出あたり、０．１〜０．６ｍｌ、より好ましくは０．４〜０．６ｍｌの液剤が塗布若しくは吐出噴霧されるように調整された容器であることが望ましい。
【００４３】
本発明の掃除用液剤は、上記のごとく容器に収容されて、使用時に身近にあるティッシュペーパー、トイレットペーパー、キッチンタオル等の使い捨て紙または乾いた布帛に、１乃至は数回吹きかけ含浸させて、それを用いて掃除対象物を拭くことによって使用される。勿論、被掃除物に直接吹き付けて、ティッシュペーパー等で塗り拡げて拭き取ることも可能であるが、液剤を均一にムラなく、経済的に使用するためには、上記の方法で用いることが好ましい。また、上記の使用法によれば、噴霧によって掃除用液剤が機械内部に入ることもない。
【００４４】
本発明の掃除用液剤は、各種の金属に対する腐食性がないか若しくは少ないことを特徴とするものである。よって防錆効果並びに耐腐食性効果をより一層上げるためには、本発明の掃除用液剤は水を実質的に含まない非水性の液剤であることが好ましい。
【００４５】
本発明の掃除用液剤は、その適用範囲を特に限定されることなく、例えば家具類、照明器具、家電製品、ＯＡ機器、サッシ、鏡、洗面台、窓ガラスなどのプラスチック、金属、ガラスなどのあらゆる素材面に適用することができる。
【００４６】
【実施例】
以下、本発明を実施例によって更に詳細に説明するが、本発明は当該実施例によって何ら制限されるものではない。尚、以下記載する％は特に断らない限り、重量％を意味する。
実施例１〜１４
後記表２及び表３記載の処方からなる組成物を調製し、容量１００ｍｌのポンプ式スプレー容器（１回吐出量０．２ｍｌ）に収容し、本発明の掃除用液剤（容器入り）を調製した。なお、カチオン系界面活性剤としては塩化ジ椰子油アルキルジメチルアンモニウム、ノニオン系界面活性剤としてはオキシエチレンドデシルアミン、アルコールとしては３−メトキシ−３−メチル−１−ブタノール及びイソパラフィン系炭化水素としてＮＡＳ−３（日本油脂製）を用いた。
【００４７】
また、下記実験例１及び２の比較試験用として、表４記載載の処方からなる組成物を調製し、同様にポンプ式スプレー容器に収容し比較用の液剤（比較例１〜５）を調製した。
【００４８】
実験例１
上記本発明の掃除用液剤の効果を確認するために、上記本発明の掃除用液剤（実施例１〜１４）及び比較用（比較例１〜５）の液剤について以下の評価試験を行った。試験は、２０〜４９才主婦１２０名を対象としてこれらの掃除用液剤を使用してもらって（１）塵の除去効果、（２）手垢等の除去効果、（３）塵再付着防止効果（帯電防止効果）、（４）仕上がり感（（ａ）拭きムラ、（ｂ）ベタツキ感）、（５）皮膚への刺激性の有無、（６）乾燥速度、（７）液安定性の７項目について評価してもらうことにより実施した。これらの具体的な試験方法及び評価方法は以下の通りである。
【００４９】
（１）塵の除去効果
白色綿状パルプをフードミキサーにかけて細かくし、これを塵にみたてて黒色ＡＢＳ製のプレート（１０×１０ｃｍ^２）の上に表面が均一に白色になる様に播いた。ティッシュペーパー（約４００ｃｍ^２）２枚（１組セット）を４つ折りにして掃除用液剤を４回噴霧して含浸させ、それを用いて前記プレート上の綿状パルプを拭き取り、ほこり除去効果を評価した。殆ど問題なく塵が取れた場合を○、若干塵がとれにくかった場合を△、埃が除去できず残った場合を×として評価した。
【００５０】
（２）手垢等の除去効果
人工皮脂（パルミチン酸０．７％、オレイン酸１．２％、トリパルミチン１．８％、トリオレイン３．４％、トリリノレイン０．７％、スクアラン１．７％、コレステロール０．５％、クロロホルム９０％）を混合したものを、ガラス板に０．１ｇ塗りつけて汚垢板とした。ティッシュペーパー（約４００ｃｍ^２）２枚（１組セット）を４つ折りにして掃除用液剤を４回噴霧して含浸させ、それを用いて前記汚垢板をこすり、その汚れ落ち具合を観察した。殆ど完全に汚れが除去された場合を○、少し汚れが残った場合を△、汚れが殆ど除去できず残った場合を×として評価した。
【００５１】
（３）塵再付着防止効果（帯電防止効果）
ティッシュペーパー２枚を４つ折りにして掃除用液剤を４回噴霧して含浸させ、それでＴＶ画面を拭き取り掃除した。１週間後に再度拭き取り掃除して、拭き取られた汚れの程度（ティッシュペーパーの汚れの程度）から塵再付着防止効果を評価した。ティッシュペーパーが全く汚れず優れた塵再付着防止効果が認められた場合を◎、ティッシュペーパーがあまり汚れず塵再付着防止効果が認められた場合を○、ティッシュペーパーは多少汚れたもののやや効果が認められた場合を△、ティッシュペーパーがかなり汚れ、効果が認められなかった場合を×として評価した。
【００５２】
（４）仕上がり感
ａ）拭きムラの有無
ティッシュペーパー２枚を４つ折りにして掃除用液剤を４回噴霧して含浸させ、それで予め７５％エタノールで掃拭しておいた鏡（１０×１０ｃｍ^２）を満遍なく拭いた。５分後、その表面を観察して拭きムラ（拭く跡）の有無を確認した。拭きムラが殆どみられない場合を○、少し拭きムラが残った場合を△、拭きムラが明らかに認められる場合を×として評価した。
【００５３】
ｂ）ベタツキ感
ティッシュペーパー２枚を４つ折りにして掃除用液剤を４回噴霧して含浸させ、それでＡＢＳ製の試験板表面（１０×１０ｃｍ^２）を満遍なく拭いた。５分後、その表面を手で触れてみて、表面のベタツキ感を評価した。表面がさらっと仕上がっている場合を◎、比較的さらっとしているもののややベタツキが感じられる場合を○、ベタツキが感じられる場合を△、非常にベタツキ感が残る場合を×として評価した。
【００５４】
（５）皮膚への刺激性
上記試験での使用を通して、液剤の刺激性を評価してもらった。皮膚への刺激が全くなかった場合を◎、皮膚への刺激性はあるものの気にならなかった場合を○、刺激性がやや気になった場合を△、気になった場合を×として評価した。
【００５５】
（６）乾燥速度
上記仕上がり感の試験を通して、液剤を用いて清拭した後の対象物の乾燥の早さを評価した。清拭後、乾燥するまでかかった時間が２分以内の場合を◎、５分以内の場合を○、８分以内の場合を△、８分以上かかった場合を×としてそれぞれ評価した。
【００５６】
（７）液安定性試験
下記の方法によって本発明の掃除用液剤の安定性を調べた。
▲１▼ 各処理液を５０ｍｌ／ガラスビンで準備する
▲２▼ −２０℃〜４２℃の温度サイクル条件（１２時間単位）で２ヶ月保存する
▲３▼ ２ヶ月後、目視にて液の状態を見る。
【００５７】
２ヶ月後の液が無色透明である場合を◎、液が若干着色しているが透明である場合を○、液中に若干の沈殿があるが振れば元に戻る場合を△、及び沈殿があり振っても元に戻らない場合を×として、それぞれ評価した。
【００５８】
結果を表２〜表４に併せて示す。なお結果は主婦１２０名の評価結果を総合的に判断したものである。
【００５９】
【表２】

【００６０】
【表３】

【表４】

【００６２】
実験例２ 対金属影響試験
上記本発明の掃除用液剤（実施例１〜１４）並びに比較のために比較用の液剤（比較例１〜５）を用いて、本発明の掃除用液剤の各種金属に対する影響を調べた。具体的には、掃除用液剤の中（５０℃）に表５に示す素材からなる金属片を１週間浸漬して、変色、錆の発生、液層の変化等を観察した。なお、対照試験として、本発明の掃除用液時の代わりに水（対照例）を用いたものについて同様に試験を行った。
【００６３】
【表５】

【００６４】
結果を上記表２〜４に示す。尚、各評価は金属片に対して全く影響が見られない場合を◎、やや液剤に白沈が見られるが殆ど影響が見られない場合を○、液層の変色や錆が少々見られる場合を△、明らかに錆が生じ液に白沈が見られる場合を×として評価した。上記の結果から、本発明の掃除用液剤は全般的に各種の金属に対して腐食性が少ないことがわかる。
実験例３ 帯電防止能の客観的評価
上記実施例において塵再付着防止効果（帯電防止効果）があると評価された実施例５の掃除用液剤について、それで樹脂プレート表面を清拭した後のプレート表面固有抵抗値を測定することにより、該液剤の帯電防止効果を客観的に評価した。
（１）清拭直後の帯電防止効果
実施例５の掃除用液剤を容量１００ｍｌのトリガー式スプレー（１回吐出量０．２ｍｌ）に収容した。それを用いてティッシュペーパー２枚（４つ折り）に４回スプレーして液剤を含浸させ、１０×１０ｃｍ^２のＡＢＳ樹脂製プレートを１０往復清拭した。５分間放置し乾燥後、帯電防止性の指標である、清拭プレート面の表面固有抵抗値を測定した。尚、比較実験として、（ｉ）ティッシュペーパーを用いて同様に乾拭きする、（ｉｉ）ティッシュペーパーに水を液剤と同量含ませて水拭きする、（ｉｉｉ）市販品の化学雑巾（ノニオン、アニオン系界面活性剤使用）を用いて清拭する、実験を行った。
【００６５】
なお、表面固有抵抗値の測定は、ＪＩＳ Ｋ−６９１１（１９９５）（熱硬化性プラスチック一般試験法）に準じて、２３±２℃、５０±５ＲＨ％の条件で、超絶縁計（ヒューレッドパッカード製、測定電圧５００Ｖ、荷電１分間、加重５ｋｇ）を用いて測定した。
【００６６】
結果を表６に示す。結果は３回の実験の平均値を示す。
【００６７】
【表６】

【００６８】
合成樹脂の表面固有抵抗値は約１０^１２Ωを越えるのが普通で、通常ＡＢＳ樹脂、ポリスチレン、ポリエステル等では１０^１６Ω以上であるのが一般的である。このためかかる樹脂の化粧板を有する家具類には埃が付きやすいといった問題がある。かかる問題は帯電防止剤等を用いることによって表面固有抵抗値を１０^１２Ω以下に下げることによって解決することができる。また当業界では一般に、表面固有抵抗値を１０^９Ω以下に下げることができれば、かなり良好な帯電防止剤であると評価されている。
【００６９】
上記の実験から、本発明の掃除用液剤で清拭することによれば合成樹脂プレート表面の固有抵抗値を１０^９Ωレベル以下に低減でき、本発明の液剤は帯電防止性にかなり優れていることがわかる。
（２）清拭２４時間後の帯電防止効果
実施例５の掃除用液剤について、清拭２４時間後の帯電防止効果を評価した。具体的には、ティッシュペーパー２枚（４つ折り）に液剤を４回スプレーして含浸させ、１０×１０ｃｍ^２のＡＢＳ樹脂製プレート及びポリスチレン製プレートのそれぞれを１０往復清拭した。得られたプレートを２３±２℃、５０±５ＲＨ％の恒温恒湿室に２４時間放置して、その後（１）と同様の条件で各プレート表面の固有抵抗値を測定した。結果を表７に示す。結果は３回の実験の平均値である。
【００７０】
【表７】

【００７１】
このことから、本発明の掃除用液剤は、防埃塵持続性があることがわかる。
【００７２】
実施例５の掃除用液剤を３℃、４０℃、５０℃の温度条件、及び−２０℃〜４２℃の温度サイクル条件で２ヶ月間保存した。これを容器に収容し、（２）と同様にティッシュペーパーを用いて各プレートを清拭して２４時間後の表面固有抵抗値を測定した。結果を表８に示す。結果は３回の実験の平均値である。
【００７３】
【表８】

【００７４】
本発明の掃除用液はいずれも目標値である１０^１２Ωを達成し、本発明の液剤は保存においても安定して帯電防止能を維持することがわかった。
【００７５】
【本発明の効果】
本発明の液剤は、住宅内の家具や家電機器、ＯＡ機器等の埃や汚れの除去に有効である。気軽に身近にあるティッシュペーパー等を利用して拭き取り掃除ができるので、不経済感を軽減することができる。また掃除後も、掃除対象物がべたついたり、拭き跡等がむらになったりギラツいたりしないので、清潔感があり、２度拭きや空拭きの必要がなく手間がかからない。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cleaning liquid. More specifically, the present invention is a cleaning liquid of the type used by impregnating familiar paper or cloth, such as tissue paper, toilet paper, and paper towel, and is used for furniture, lighting equipment, home appliances, and OA equipment. A cleaning fluid that can easily and satisfactorily remove sebum, dirt and dust adhering to glass, mirrors, etc., and can provide antistatic ability to the surface after wiping to prevent reattachment of dust. . Since the cleaning liquid of the present invention is not corrosive to metals, it does not require the trouble of wiping twice, and it does not cause uneven wiping, wiping traces, stickiness, etc. on furniture, OA equipment, etc. Demonstrate finish.
[0002]
[Prior art]
In recent houses, synthetic resins such as vinyl chloride, polyester, melamine, and styrene are used in many materials such as wallpaper, decorative plywood such as furniture, and home appliances. Since such a synthetic resin is lipophilic, it is easy to become familiar with sebum and oily dirt from limbs, and because of its low conductivity, static electricity is generated and airborne dust is easily adsorbed. For this reason, dirt and dust are likely to adhere to the surface over time. Also, TV screens, OA device display screens, and the like are prone to dust due to static electricity, and because they are transparent, dirt such as dirt and dust is easily noticeable.
[0003]
Conventionally, as a method for easily removing dirt, dust or oil stains adhering to indoor floors, walls, joinery, furniture, home appliances, etc., a cleaning liquid is applied to a base material of paper or fabric (woven fabric, knitted fabric, nonwoven fabric, etc.). A method of wiping with a soaked chemical cloth is often used (see JP-A-2-161925, US Pat. No. 4,448,704, etc.). Examples of the cleaning liquid used include surfactants, liquid paraffin, vegetable oils or fatty acid esters (Japanese Patent Laid-Open No. 49-66706), water, ethanol, surfactants, glycols or glycol ethers, The composition etc. which consist of a fungicide etc. can be mentioned.
[0004]
However, since such a chemical cloth is used in a disposable manner, it is convenient in that it does not require time for washing and reuse, but it is expensive and uneconomical for daily use for daily life cleaning. In addition, when these chemical cloths are used, there are problems such as wiping unevenness and wiping marks remaining on the surface to be cleaned, glaring like a rainbow, and cleaning liquid remaining and sticking the surface. Wiping may be necessary. Also, when plastic objects, TV screens, OA device display screens, etc. are to be cleaned, dust will be adhered to the surface due to static electricity again after a certain period of time, especially after wiping and cleaning. There is a problem that you have to do.
[0005]
On the other hand, there are cleaning detergents that contain a cationic surfactant to impart antistatic ability, but cationic surfactants are generally used because they are corrosive to metals based on the halogen atoms contained in them. Later, it must be wiped twice with a damp cloth or an empty cloth, and its application range is naturally limited.
[0006]
[Problems to be solved by the invention]
The present invention is a cleaning liquid that can be used by applying or spraying on tissue paper, toilet paper, paper towels, etc. that are close to the object. An object of the present invention is to provide a cleaning liquid agent that can be dropped and imparted with an antistatic ability to a cleaning surface to prevent reattachment of dust and dirt. A further object of the present invention is to provide a cleaning liquid agent that has the effect of preventing the above-mentioned dust re-adhesion and has little influence on the metal such as corrosion.
[0007]
[Means for Solving the Problems]
The inventors of the present invention have conducted intensive studies day and night to solve the above-mentioned problems. By using a specific quaternary ammonium salt-based cationic surfactant in combination with an isoparaffin-based hydrocarbon, the dusting property itself is improved. We have found that dust and dirt can be removed significantly and that the object to be cleaned can be prevented from being reattached by providing antistatic ability, and that it does not adversely affect the metal, such as corrosion.
[0008]
Conventionally, cationic surfactants have been known to have antistatic properties and are useful as antistatic agents, but on the other hand, they point to the problem of causing corrosiveness to metals due to halogen atoms in the molecule. Has been. Based on this common technical knowledge, certain cationic surfactants can be used in combination with isoparaffinic hydrocarbons to prevent the effects of corrosiveness and rust on the metal while maintaining its antistatic ability. The above finding of not giving is surprising.
[0009]
Furthermore, the present inventors have found that a liquid agent prepared using an isoparaffinic hydrocarbon having a specific vapor pressure is extremely useful as a cleaning liquid of the type used by applying or spraying to tissue paper or the like at the time of use. That is, according to the liquid agent, tissue paper or the like is appropriately moistened so that dust and dirt are adsorbed and removed well, and after wiping, the object quickly evaporates to leave a non-uniformity and stickiness. I found nothing.
[0010]
The present invention has been completed based on such findings. That is, this invention is the cleaning liquid agent shown below.
(1) The following formula as an active ingredient
[0011]
[Chemical 3]

[0012]
(In the formula, R and R 'represent an alkyl group having 8 to 18 carbon atoms derived from coconut oil fatty acid, and X represents a halogen atom.)
A cleaning liquid comprising a cationic surfactant represented by the formula (I) and an isoparaffinic hydrocarbon.
(2) The cleaning liquid according to (1), wherein the isoparaffinic hydrocarbon has a vapor pressure of 10 to 200 mmHg at 80 ° C.
(3) The isoparaffinic hydrocarbon has the formula
[0013]
[Formula 4]

[0014]
(In the formula, n represents an integer of 2 to 4.)
The cleaning liquid according to (1) or (2), wherein
(4) Any one of (1) to (3), characterized in that it contains 0.2 to 5% by weight of a cationic surfactant and 95 to 99.8% by weight of isoparaffinic hydrocarbon. The cleaning liquid described in 1.
(5) The cleaning liquid according to any one of (1) to (4), further including at least one of alcohol and nonionic surfactant.
(6) 0.2-5% by weight of cationic surfactant, 75-98.8% by weight of isoparaffinic hydrocarbon, and 0.5-10% by weight of alcohol or 0.5% of nonionic surfactant The cleaning liquid according to (5), which contains at least one of -10 wt%.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
The cleaning liquid of the present invention is characterized by containing a specific cationic surfactant in combination with an isoparaffinic hydrocarbon.
[0016]
Examples of the cationic surfactant used in the present invention include dialkyl dimethyl quaternary ammonium salt surfactants represented by the following formula among various cationic surfactants.
[0017]
[Chemical formula 5]

[0018]
(In the formula, R and R 'represent an alkyl group having 8 to 18 carbon atoms, and X represents a halogen atom.)
In the above formula, R and R ′ represent various alkyl groups having 8 to 18 carbon atoms derived from coconut oil fatty acid, specifically, octyl group, decyl group, dodecyl group, tetradecyl group, hexadecyl group. And octadecyl group. R and R ′ may be different alkyl groups.
[0019]
The cationic surfactant used in the present invention may contain any one of the above dialkyldimethyl quaternary ammonium salts, but a mixture containing two or more dialkyldimethyl quaternary ammonium salts. The combination and blending ratio can be determined according to various fatty acids contained in palm oil and blending ratio.
[0020]
In general, the composition of lauric glyceride, which is the main component of coconut oil, is caprylic acid (5-9%), capric acid (6-10%), lauric acid (44-52%), myristic acid (13-19). %), Palmitic acid (8-11%), stearic acid (1-3%), oleic acid (4-8%) and linoleic acid (2-4%). Therefore, as a preferred embodiment of the cationic surfactant used in the present invention, there can be mentioned mixtures containing various dialkyldimethyl quaternary ammonium salts according to the blending ratio of this fatty acid. In the present specification, such a mixture of dialkyldimethyl quaternary ammonium salts is also simply referred to as dicoconut oil alkyldimethylammonium salt.
[0021]
More preferable examples of the dicoconut oil alkyldimethylammonium salt include those shown in Table 1.
[0022]
[Table 1]

[0023]
In the present invention, the halogen atom means a chlorine atom, a bromine atom or an iodine atom, preferably a chlorine atom.
[0024]
Such a cationic surfactant can be prepared according to a conventional method by those skilled in the art, but can be easily obtained commercially.
[0025]
The ratio of the cationic surfactant to be mixed in the cleaning liquid of the present invention is not particularly limited, but is usually 0.2 to 5% by weight, preferably 0.5 to 2% by weight (active ingredient conversion). It can be illustrated. If the blending amount exceeds 5% by weight, the irritation to the skin tends to be strong. If the blending amount is much less than 0.2% by weight, the sustainability tends to be insufficient to obtain an antistatic effect. The utility as a cleaning liquid is reduced.
[0026]
In the cleaning liquid of the present invention, an isoparaffinic hydrocarbon is blended in combination with the above cationic surfactant.
[0027]
As the isoparaffinic hydrocarbon, those generally used as a solvent can be broadly cited, and are not particularly limited._nH_{2n + 2}(N is an integer of 4 to 16), and the carbon number (n) is preferably in the range of 8 to 12. These may be composed of a single species or a mixture of two or more species.
[0028]
Preferably the following formula
[0029]
[Chemical 6]

[0030]
(In the formula, n represents an integer of 2 to 4.)
The thing containing what is shown as a main component can be illustrated. Such isoparaffinic hydrocarbons only need to have n in the range of 2 to 4, and may be composed of a single species or a mixture of two or more species.
[0031]
Specifically, a hydrocarbon unit containing at least one of the trimer (n = 3) and tetramer (n = 4) of the hydrocarbon unit is 70% or more, preferably 80% or more. For example, isoparaffin carbonization containing 75 to 95% by weight of trimer and 5 to 25% by weight of dimer, preferably 85 to 90% by weight of trimer and 10 to 15% by weight of dimer. Hydrogen; and an isoparaffinic system comprising 5-30% by weight of trimer and 70-95% by weight of tetramer, preferably 15-20% by weight of trimer and 80-85% by weight of tetramer There may be mentioned hydrocarbons.
[0032]
Examples of suitable isoparaffinic hydrocarbons include those having an evaporation pressure at 80 ° C. of 1 to 500 mmHg, preferably 10 to 200 mmHg, more preferably 10 to 100 mmHg to 20 to 100 mmHg. By using an isoparaffinic hydrocarbon in a range where the vapor pressure is applied, a cleaning liquid suitable for wiping and cleaning can be prepared by taking it out on a base fabric such as a tissue. That is, in general, it is desirable that the cleaning tool (wiping tool) is appropriately moistened to adsorb (adhere) dust, dust, etc., while the cleaned cleaning object does not leave a wiping trace. It is desirable to dry quickly. According to the present invention, by using an isoparaffin-based hydrocarbon having the above evaporation pressure, it is possible to prepare an application liquid for cleaning that satisfies the above-mentioned conflicting effects. That is, according to the cleaning liquid of the present invention containing the isoparaffinic hydrocarbon and the specific cationic surfactant, the surface of the wiping surface is maintained while having a proper humidity and maintaining dustiness. A cleaning tool having excellent wiping finish and dust ability without leaving uneven wiping and stickiness can be prepared at the time of use. Therefore, if it is the same isoparaffin, a chemical | medical agent can be dried more rapidly, so that there are many compounding quantities of isoparaffin with respect to the whole.
[0033]
The isoparaffinic hydrocarbon used in the present invention does not need to be highly purified, but there is little or no odor in order to leave no odor in the object to be cleaned, and the object to be cleaned does not change color or change in quality. It is preferably chemically inert. Furthermore, it is preferable that it has no irritation to skin and mucous membranes and is highly safe. Moreover, since the cleaning liquid of the present invention is also used on the painted surface of furniture or the like, it is preferable that the cleaning liquid does not affect the wood coating film. Examples thereof include isoparaffinic hydrocarbons having a relatively high aniline point such as 70 to 100 ° C., preferably 80 to 90 ° C. (JIS-K2256).
[0034]
As the isoparaffinic hydrocarbon, a commercially available one can be used more simply.
[0035]
Such isoparaffinic hydrocarbon is used by blending it with the cleaning liquid of the present invention at a ratio selected from the range of 75 to 99.8% by weight, preferably 95 to 98.0% by weight. When the blending amount is significantly less than 75% by weight, it tends to take a long time to dry the cleaning liquid.
[0036]
In addition to the said component, alcohol can be mix | blended with the component of the cleaning liquid agent of this invention. Examples of the alcohol include lower alcohols such as isopropyl alcohol and ethanol, and higher alcohols such as 3-methoxy-3-methyl-1-butanol, among which 3-methoxy-3-methyl-1-butanol is preferable. Used for. By blending such a higher alcohol, it is possible to increase the compatibility of the cationic surfactant and the isoparaffinic hydrocarbon described above, solubilize the liquid agent, suppress the generation of salt, and improve the stability of the liquid component. it can.
[0037]
When the alcohol is blended, the blending ratio is not limited, but it can be blended in the cleaning liquid usually at a ratio of 0.5 to 10% by weight, preferably 2 to 7% by weight. If the blending ratio greatly exceeds 10% by weight, there may be an adverse effect depending on the material of the object to be cleaned.
[0038]
Furthermore, in addition to the above-mentioned components such as cationic surfactants and isoparaffinic hydrocarbons and / or alcohols, nonionic surfactants can be added to the cleaning liquid of the present invention. By adding such a nonionic surfactant, a further antirust effect can be imparted without impairing the antistatic effect.
[0039]
Although it does not restrict | limit especially as a nonionic surfactant, What has an antistatic effect can be mentioned suitably. Specifically, these nonionic surfactants include fatty acid alkanolamides such as diethanolamide (1: 1 type) and oleic acid diethanolamide (1: 1 type); monooxyethylene dodecylamine, polyoxyethylene dodecylamine, etc. Nitrogen-containing nonionic surfactants such as (poly) oxyethylene fatty acid amide can be included.
[0040]
When the nonionic surfactant is blended, the blending amount is not limited, but it can be blended in the cleaning liquid usually at a ratio of 0.5 to 10% by weight, preferably 2 to 5% by weight. .
[0041]
As long as the purpose of the present invention is not hindered, the cleaning liquid of the present invention may contain components used in the product field. Examples of such materials include bactericides, antiseptics, antibacterial agents, antifungal agents, deodorants, flavoring agents, silicone-based water repellents, and cleaning agents.
[0042]
The cleaning liquid of the present invention can be used by being contained and filled in a container generally used for a cleaning liquid. Examples of the container include, but are not limited to, a dispenser container in which a hole is formed in the upper cap part and the liquid agent is supplied from the part in a liquid, mist, or foam form. Can include a container with a trigger, a squeeze foamer container, a pump spray container, a gun spray container, an aerosol container, a squeeze spray container, and the like. Preferably, a pump type spray container and a squeeze spray container can be used from the viewpoints of economy and environmental compatibility, and uniform discharge onto the tissue paper surface. Although it is not particularly limited, it is preferably a container adjusted so that 0.1 to 0.6 ml, more preferably 0.4 to 0.6 ml of liquid agent is applied or discharged and sprayed per discharge. desirable.
[0043]
The cleaning liquid of the present invention is contained in a container as described above, and is impregnated by spraying it once or several times on disposable paper or dry cloth such as tissue paper, toilet paper, kitchen towel, etc. that are close at the time of use, It is used by wiping the object to be cleaned with it. Of course, it is possible to spray directly on the object to be cleaned, spread it with tissue paper or the like, and wipe it off. However, in order to use the liquid agent uniformly and uniformly, it is preferable to use it by the above method. Moreover, according to said usage, the cleaning liquid agent does not enter the inside of the machine by spraying.
[0044]
The cleaning liquid of the present invention is characterized by having no or little corrosiveness to various metals. Therefore, in order to further increase the rust prevention effect and the corrosion resistance effect, the cleaning liquid of the present invention is preferably a non-aqueous liquid that does not substantially contain water.
[0045]
The application range of the cleaning liquid of the present invention is not particularly limited. For example, furniture, lighting equipment, home appliances, OA equipment, sashes, mirrors, washstands, plastics such as window glass, metal, glass, etc. It can be applied to any material surface.
[0046]
【Example】
EXAMPLES Hereinafter, although an Example demonstrates this invention still in detail, this invention is not restrict | limited at all by the said Example. Unless otherwise specified,% described below means% by weight.
Examples 1-14
The composition which consists of prescription of postscript Table 2 and Table 3 was prepared, and it accommodated in the pump-type spray container (capacity once discharge 0.2ml) of capacity | capacitance 100ml, and prepared the cleaning liquid agent (container containing) of this invention. . In addition, dication oil alkyl dimethyl ammonium chloride as a cationic surfactant, oxyethylene dodecylamine as a nonionic surfactant, 3-methoxy-3-methyl-1-butanol as an alcohol, and NAS as an isoparaffin hydrocarbon -3 (manufactured by NOF Corporation) was used.
[0047]
In addition, as a comparative test of Experimental Examples 1 and 2 below, a composition having the formulation described in Table 4 was prepared, and similarly stored in a pump-type spray container to prepare a comparative liquid agent (Comparative Examples 1 to 5). did.
[0048]
Experimental example 1
In order to confirm the effect of the cleaning solution of the present invention, the following evaluation tests were performed on the cleaning solution (Examples 1 to 14) and the comparative solution (Comparative Examples 1 to 5) of the present invention. The test was conducted for 120 housewives of 20 to 49 years old who used these cleaning solutions (1) dust removal effect, (2) dust removal effect, (3) dust re-adhesion prevention effect (charging) Prevention effect), (4) finish feeling ((a) uneven wiping, (b) stickiness), (5) presence or absence of irritation to skin, (6) drying speed, (7) liquid stability We carried out by having you evaluate. These specific test methods and evaluation methods are as follows.
[0049]
(1) Dust removal effect
White flocculent pulp is crushed in a food mixer, dusted into a black ABS plate (10 x 10 cm)²) So that the surface is uniformly white. Tissue paper (about 400cm²) Two sheets (one set) were folded in four and sprayed with the cleaning solution four times to impregnate it, and the cotton-like pulp on the plate was wiped off to evaluate the dust removal effect. The case where dust was removed with little problem was evaluated as △, the case where dust was slightly difficult to remove was evaluated as Δ, and the case where dust could not be removed was evaluated as ×.
[0050]
(2) Removal effects such as hand dust
Artificial sebum (palmitic acid 0.7%, oleic acid 1.2%, tripalmitin 1.8%, triolein 3.4%, trilinolein 0.7%, squalane 1.7%, cholesterol 0.5%, A mixture of 90% chloroform) was applied to a glass plate to give a soil plate. Tissue paper (about 400cm²) Two sheets (one set) were folded in four and sprayed with the cleaning solution four times to impregnate, and the dirt plate was rubbed using it, and the degree of dirt removal was observed. The case where the dirt was almost completely removed was evaluated as ◯, the case where the dirt remained a little, Δ, and the case where the dirt was hardly removed was evaluated as x.
[0051]
(3) Dust reattachment prevention effect (antistatic effect)
Two tissue papers were folded in four and sprayed with the cleaning solution four times to impregnate it, and the TV screen was wiped and cleaned. One week later, it was wiped again and cleaned, and the dust re-adhesion prevention effect was evaluated from the degree of dirt wiped off (degree of dirt on the tissue paper). ◎ When the tissue paper is not soiled at all and excellent dust re-adhesion prevention effect is recognized ◎, When the tissue paper is not very dirty and dust re-adhesion prevention effect is recognized ○, Tissue paper is somewhat soiled but somewhat effective The case where it was recognized was evaluated as Δ, and the case where the tissue paper was very dirty and the effect was not recognized was evaluated as ×.
[0052]
(4) Finished feeling
a) Presence or absence of uneven wiping
A mirror (10 × 10 cm) that was folded in two in two tissue papers and impregnated with a cleaning solution sprayed four times and then wiped in advance with 75% ethanol.²). After 5 minutes, the surface was observed to check for wiping unevenness (wiping marks). The case where wiping unevenness was hardly observed was evaluated as ◯, the case where slight wiping unevenness remained was evaluated as Δ, and the case where wiping unevenness was clearly recognized was evaluated as ×.
[0053]
b) Stickiness
Two tissue papers are folded in four and sprayed with the cleaning solution four times to impregnate the surface of the ABS test plate (10 × 10 cm)²). After 5 minutes, the surface was touched with a hand to evaluate the stickiness of the surface. The case where the surface was smooth was evaluated as ◎, the case where it was relatively smooth but slightly sticky, ○, the case where stickiness was felt was evaluated as 、, and the case where a very sticky feeling remained was evaluated as ×.
[0054]
(5) Skin irritation
Through the use in the above test, the irritation of the solution was evaluated. Evaluated as ◎ when there was no irritation to the skin, ◯ when there was irritation to the skin but not bothered, △ when the irritation was slightly worrisome, and x when it was worried did.
[0055]
(6) Drying speed
Through the test of the finished feeling, the speed of drying of the object after wiping with a liquid agent was evaluated. After wiping, the case where the time required for drying was within 2 minutes was evaluated as ◎, the case within 5 minutes was evaluated as ◯, the case within 8 minutes was evaluated as △, and the case taken over 8 minutes was evaluated as ×.
[0056]
(7) Liquid stability test
The stability of the cleaning liquid of the present invention was examined by the following method.
(1) Prepare each treatment solution in 50ml / glass bottle
(2) Store for 2 months under the temperature cycle condition of -20 ° C to 42 ° C (in units of 12 hours)
(3) After 2 months, visually check the liquid state.
[0057]
◎ When the liquid after 2 months is colorless and transparent, ◯ when the liquid is slightly colored but transparent, there is a slight precipitation in the liquid, but it returns to the original when shaken, and △ The case where it did not return even if it shakes was evaluated as x, and each was evaluated.
[0058]
A result is combined with Table 2-Table 4, and is shown. The result is a comprehensive judgment of the evaluation results of 120 housewives.
[0059]
[Table 2]

[0060]
[Table 3]

[Table 4]

[0062]
Experimental example 2  Metal effect test
Using the cleaning liquid of the present invention (Examples 1 to 14) and a comparative liquid (Comparative Examples 1 to 5) for comparison, the effects of the cleaning liquid of the present invention on various metals were examined. Specifically, a metal piece made of the material shown in Table 5 was immersed in a cleaning liquid (50 ° C.) for 1 week, and discoloration, generation of rust, change in liquid layer, and the like were observed. In addition, as a control test, the test was similarly performed on a test using water (control example) instead of the cleaning liquid of the present invention.
[0063]
[Table 5]

[0064]
The results are shown in Tables 2 to 4 above. In addition, each evaluation is ◎ when there is no effect on the metal piece, ◎ when white sediment is slightly seen in the liquid agent but almost no effect is seen, when discoloration or rust of the liquid layer is seen a little △, the case where rust was apparent and white sediment was observed in the liquid was evaluated as x. From the above results, it can be seen that the cleaning liquid of the present invention is generally less corrosive to various metals.
Experimental example 3  Objective evaluation of antistatic ability
By measuring the plate surface specific resistance value after cleaning the resin plate surface with respect to the cleaning liquid agent of Example 5 evaluated as having dust re-adhesion preventing effect (antistatic effect) in the above example, The antistatic effect of the solution was objectively evaluated.
(1) Antistatic effect immediately after wiping
The cleaning liquid of Example 5 was accommodated in a trigger spray having a capacity of 100 ml (a single discharge amount of 0.2 ml). Using it, spray 2 times (4 folds) on tissue paper and impregnate it with liquid 10 × 10 cm²The ABS resin plate was wiped 10 times. After standing for 5 minutes and drying, the surface resistivity value of the wiping plate surface, which is an index of antistatic property, was measured. In addition, as a comparative experiment, (i) dry wipe with tissue paper in the same manner, (ii) wipe the tissue paper with the same amount of water as the liquid agent, and (iii) commercially available chemical cloth (nonion, anion) An experiment was conducted to wipe off using a surfactant.
[0065]
The surface resistivity was measured according to JIS K-6911 (1995) (General Thermosetting Plastics Test Method) under the conditions of 23 ± 2 ° C. and 50 ± 5 RH% (Huled Packard). Manufactured, measurement voltage 500 V, charge 1 minute, weight 5 kg).
[0066]
The results are shown in Table 6. The result shows the average value of three experiments.
[0067]
[Table 6]

[0068]
The surface resistivity of the synthetic resin is about 10¹²It usually exceeds Ω, usually 10 for ABS resin, polystyrene, polyester, etc.¹⁶Generally it is Ω or more. For this reason, there is a problem that the furniture having such a resin decorative board is likely to be dusty. Such a problem is that the surface resistivity is reduced to 10 by using an antistatic agent or the like.¹²It can be solved by lowering to Ω or less. Also, in the industry, the surface resistivity is generally 10⁹If it can be lowered to Ω or less, it is evaluated as a fairly good antistatic agent.
[0069]
From the above experiment, the specific resistance value of the surface of the synthetic resin plate is 10 by wiping with the cleaning liquid of the present invention.⁹It can be reduced to an Ω level or less, and it can be seen that the liquid agent of the present invention is considerably excellent in antistatic properties.
(2) Antistatic effect after 24 hours of wiping
For the cleaning liquid of Example 5, the antistatic effect after 24 hours of wiping was evaluated. Specifically, two sheets of tissue paper (four folds) are impregnated by spraying the liquid agent four times, 10 × 10 cm²Each of the ABS resin plate and polystyrene plate was wiped 10 times. The obtained plate was left in a constant temperature and humidity room of 23 ± 2 ° C. and 50 ± 5 RH% for 24 hours, and then the specific resistance value of each plate surface was measured under the same conditions as in (1). The results are shown in Table 7. The result is the average of three experiments.
[0070]
[Table 7]

[0071]
From this, it can be seen that the cleaning liquid of the present invention has dust-proof dust persistence.
[0072]
The cleaning liquid of Example 5 was stored for 2 months under temperature conditions of 3 ° C., 40 ° C., 50 ° C., and temperature cycle conditions of −20 ° C. to 42 ° C. This was accommodated in a container, and each plate was wiped using tissue paper in the same manner as in (2), and the surface specific resistance value after 24 hours was measured. The results are shown in Table 8. The result is the average of three experiments.
[0073]
[Table 8]

[0074]
The cleaning liquid of the present invention is a target value for all 10¹²Ω was achieved, and it was found that the liquid preparation of the present invention stably maintained the antistatic ability even during storage.
[0075]
[Effect of the present invention]
The liquid agent of the present invention is effective for removing dust and dirt from furniture in homes, home appliances, OA devices and the like. Since it can be wiped and cleaned using tissue paper, etc. that are close to you, you can reduce the uneconomical feeling. Further, even after cleaning, the object to be cleaned does not become sticky, and the wiping traces do not become uneven or glaring, so there is a feeling of cleanliness and there is no need for wiping twice or empty wiping.

Claims (5)

The following formula as an active ingredient

(In the formula, R and R ′ represent an alkyl group having 8 to 18 carbon atoms derived from coconut oil fatty acid, and X represents a halogen atom.) 0.2 A cleaning liquid characterized by containing ~ 5 wt% and 75-99.8 wt% of isoparaffinic hydrocarbons. The cleaning liquid according to claim 1, wherein the isoparaffinic hydrocarbon has a vapor pressure of 10 to 200 mmHg at 80 ° C. Isoparaffinic hydrocarbons have the formula

The cleaning liquid according to claim 1 or 2, wherein n is an integer of 2 to 4 in the formula. Furthermore, the cleaning liquid agent in any one of the Claims 1 thru | or 3 containing at least 1 sort (s) in any one of alcohol or a nonionic surfactant. 0.2 to 5% by weight of dicoco oil alkyldimethylammonium salt represented by the formula (1), 75 to 98.8% by weight of isoparaffinic hydrocarbon, and 0.5 to 10% by weight of alcohol or nonionic surfactant 5. The cleaning liquid according to claim 4, comprising at least one of 0.5 to 10% by weight of the agent.