JP4853238B2 - Quick-drying transparent lotion for disinfection - Google Patents

Quick-drying transparent lotion for disinfection Download PDF

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JP4853238B2
JP4853238B2 JP2006301143A JP2006301143A JP4853238B2 JP 4853238 B2 JP4853238 B2 JP 4853238B2 JP 2006301143 A JP2006301143 A JP 2006301143A JP 2006301143 A JP2006301143 A JP 2006301143A JP 4853238 B2 JP4853238 B2 JP 4853238B2
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武 岩佐
洋樹 福井
健志郎 首藤
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NOF Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a lotion for sterilization having effective protective action on skin lesion such as chapped skin by a high-concentration lower alcohol, excellent in sterilizing properties to bacteria and viruses and quick-drying property and being transparent on appearance. <P>SOLUTION: The quick-drying transparent lotion for sterilization comprises 0.001-5 mass% 2-(meth)acryloyloxyethylphosphorylcholine (MPC) copolymer having 5,000-5,000,000 weight-average molecular weight and obtained by polymerizing MPC with a monomer represented by formula (1) (wherein R is a 3-18C hydrophobic organic group which may be substituted with N and/or O; R<SP>1</SP>is H or -CH<SB>3</SB>), 0.01-2 mass% maleic anhydride-containing polymer having 10,000-3,000,000 weight-average molecular weight, 0.001-3 mass% basic substance and &ge;50 mass% lower alcohol and water. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

本発明は、低級アルコールを主成分とし、肌荒れ防止効果に優れた消毒用速乾性透明ローションに関する。   The present invention relates to a quick-drying transparent lotion for disinfection, which has a lower alcohol as a main component and has an excellent effect of preventing rough skin.

速乾性の殺菌消毒剤は、使用時、手に塗布又は噴霧するだけで殺菌消毒でき、タオルで拭き取る必要が無い等の利点を有し、ベースン法(浸漬法)の欠点を補う消毒剤として広く普及している。しかし、現在知られている速乾性の殺菌消毒剤は、低級アルコールを高濃度に含有しているため、肌の脱脂をすると共に肌のタンパク質を変性し、それらの結果として皮膚刺激、皮膚炎、皮膚感作、アレルギー反応などの皮膚障害を誘発することがある。
そこで、湿潤剤等を配合し、上述の様な欠点を抑制した速乾性殺菌消毒剤が製品化されている。しかし、医療従事者や食品業界においては手の殺菌消毒が頻繁に繰り返し行われるため、依然として消毒剤が皮膚障害を起こす原因になってしまうことがあり、その効果が十分であるとは言えない。
Quick-drying disinfectants can be disinfected by simply applying or spraying them on the hands when in use, and have the advantage that they do not need to be wiped off with a towel, and are widely used as disinfectants to compensate for the disadvantages of the basin method (dipping method). It is popular. However, currently known quick-drying disinfectants contain a high concentration of lower alcohol, so they degrease the skin and denature skin proteins, resulting in skin irritation, dermatitis, May cause skin disorders such as skin sensitization and allergic reactions.
Therefore, a quick-drying disinfectant that contains a wetting agent or the like and suppresses the above-described drawbacks has been commercialized. However, in medical workers and the food industry, hand sterilization is frequently performed repeatedly, so that the disinfectant may still cause skin damage, and the effect is not sufficient.

近年、特許文献1において柔軟剤又は保湿剤としてラノリンやラノリン誘導体、プロピレングリコールやセチルエーテルを配合し、更に皮膚コンディショニング剤としてポリアルキレングリコール、乳化剤としてエトキシル化ラノリン等を含有したアルコール皮膚消毒剤が提案されている。
しかし、この皮膚消毒剤の場合にも、依然として高濃度の低級アルコールや乳化剤に由来した皮膚障害が生じる危険性を有しており、さらに、柔軟剤や保湿剤、皮膚コンディショニング剤の使用によって、速乾性が損なわれてしまうという問題がある。
また特許文献2には、20〜50質量%の低級アルコールにカルボキシビニルポリマーと天然多糖類、脂肪酸エステル、及び殺菌剤を配合した速乾性消毒剤が提案されている。この臭毒剤は、低級アルコール濃度を低くすることで、肌の弱い人の使用を可能にし、しかも速乾性や殺菌性は従来と変わらないとしている。しかし、低級アルコールの配合量を低くしており、そのため殺菌力の維持のために大量の殺菌剤を配合する必要があり、その殺菌剤のために依然として皮膚障害の危険性が残っていた。
In recent years, Patent Document 1 proposes an alcohol skin disinfectant containing lanolin or a lanolin derivative, propylene glycol or cetyl ether as a softening agent or a moisturizer, further containing a polyalkylene glycol as a skin conditioning agent, ethoxylated lanolin as an emulsifier, or the like. Has been.
However, this skin disinfectant still has the risk of causing skin damage from high concentrations of lower alcohols and emulsifiers. Furthermore, the use of softeners, moisturizers, and skin conditioning agents speeds up the process. There is a problem that dryness is impaired.
Patent Document 2 proposes a quick-drying disinfectant in which a carboxyvinyl polymer, a natural polysaccharide, a fatty acid ester, and a fungicide are blended with 20 to 50% by mass of a lower alcohol. This odorant can be used by people with weak skin by lowering the lower alcohol concentration, and it is said that quick-drying and bactericidal properties are the same as before. However, since the blending amount of the lower alcohol is lowered, it is necessary to blend a large amount of a bactericidal agent in order to maintain the bactericidal power, and the risk of skin damage still remains because of the bactericidal agent.

一方、特許文献3及び4において、2−(メタ)アクリロイルオキシエチルホスホリルコリン(以下、MPCと略す)のホモ重合体、あるいはMPCと親水性単量体又は疎水性単量体との共重合体が、皮膚保護効果を示し、化粧料として有用であることが報告されている。
しかし、MPC共重合体を、低級アルコールを主成分とする溶液に配合したものは知られておらず、更にアルコールに由来する肌荒れを効果的に防止することも知られていない。
特開平8−40883号公報 特開平10−130173号公報 特開平5−70321号公報 特開平6−157269号公報
On the other hand, in Patent Documents 3 and 4, a homopolymer of 2- (meth) acryloyloxyethyl phosphorylcholine (hereinafter abbreviated as MPC) or a copolymer of MPC and a hydrophilic monomer or a hydrophobic monomer is disclosed. It has been reported to show a skin protective effect and to be useful as a cosmetic.
However, a blend of MPC copolymer in a solution containing a lower alcohol as a main component is not known, and it is not known to effectively prevent rough skin derived from alcohol.
JP-A-8-40883 JP-A-10-130173 Japanese Patent Laid-Open No. 5-70321 JP-A-6-157269

本発明の課題は、高濃度の低級アルコールによる、肌荒れ等の皮膚障害に対して有効な保護作用を備え、菌やウィルスに対する殺菌性及び速乾性に優れ、外観上透明な、消毒用ローションを提供することにある。   The object of the present invention is to provide a disinfecting lotion that has an effective protective action against skin disorders such as rough skin caused by high-concentration lower alcohol, has excellent bactericidal and quick-drying properties against bacteria and viruses, and is transparent in appearance. There is to do.

本発明によれば、2−(メタ)アクリロイルオキシエチルホスホリルコリン(以下、MPCと略記する)と、ブチルメタクリレートとを重合した、前記2−(メタ)アクリロイルオキシエチルホスホリルコリンに由来する構成単位と前記ブチルメタクリレートに由来する構成単位とのモル比が3:7〜9:1である重量平均分子量5000〜5000000のMPC共重合体0.001〜5質量%と、重量平均分子量10000〜3000000のメチルビニルエーテル−無水マレイン酸共重合体0.01〜2質量%と、塩基性物質0.001〜3質量%と、低級アルコール50質量%以上と、水とを含むことを特徴とする消毒用速乾性透明ローションが提供される。 According to the present invention, a structural unit derived from 2- (meth) acryloyloxyethyl phosphorylcholine obtained by polymerizing 2- (meth) acryloyloxyethyl phosphorylcholine (hereinafter abbreviated as MPC) and butyl methacrylate and butyl 0.001 to 5% by mass of a MPC copolymer having a weight average molecular weight of 5000 to 5000000 and a methyl vinyl ether having a weight average molecular weight of 10000 to 3000000 and a molar ratio of the structural unit derived from methacrylate to 3: 7 to 9: 1. A quick-drying transparent lotion for disinfection comprising 0.01 to 2% by weight of a maleic anhydride copolymer, 0.001 to 3% by weight of a basic substance, 50% by weight or more of a lower alcohol, and water. Is provided.

本発明の消毒用速乾性透明ローションは、高濃度の低級アルコールに特定量のメチルビニルエーテル−無水マレイン酸共重合体と塩基性物質を含み、更に特定のMPC共重合体からなる肌荒れ防止剤を、透明状態を維持して含有するので、皮膚障害を抑制する効果に優れ、透明で、且つ十分な殺菌力及び速乾性を有する。従って、医療現場や食品業界等の消毒剤を繰り返し使用する機会の多い現場で有効に用いることができる。 The quick-drying transparent lotion for disinfection of the present invention contains a rough skin preventive agent comprising a specific amount of methyl vinyl ether-maleic anhydride copolymer and a basic substance in a high concentration of lower alcohol, and further comprising a specific MPC copolymer. Since it is contained in a transparent state, it is excellent in the effect of suppressing skin damage, is transparent, and has a sufficient bactericidal power and quick drying property. Therefore, it can be effectively used at sites where there are many opportunities to repeatedly use disinfectants such as medical sites and food industries.

以下、本発明を更に詳細に説明する。
本発明の消毒用速乾性透明ローション(以下、本発明のローションと略すことがある)は、特定のMPC共重合体、メチルビニルエーテル−無水マレイン酸共重合体、塩基性物質、高濃度の低級アルコール及び水を必須成分として含有し、且つ界面活性剤を含有しない場合でも外観上無色透明を示し、また速乾性、殺菌力及び肌荒れ防止性に優れる。
Hereinafter, the present invention will be described in more detail.
The quick-drying transparent lotion for disinfection of the present invention (hereinafter sometimes abbreviated as the lotion of the present invention) is a specific MPC copolymer, methyl vinyl ether-maleic anhydride copolymer , basic substance, high-concentration lower alcohol. Even when water is contained as an essential component and no surfactant is contained, it is colorless and transparent in appearance, and is excellent in quick-drying, bactericidal power and rough skin prevention.

(MPC共重合体)
本発明に用いるMPC共重合体は、MPCとブチルメタクリレートとを構成単位とする共重合体である。
( MPC copolymer)
MPC copolymer used in the present invention, Ru copolymer der to constituent units and MPC and butylmethacrylate.

本発明に用いるMPCは、式(2)で示される。

Figure 0004853238
The MPC used in the present invention is represented by the formula (2).
Figure 0004853238

MPCとしては、市販品を用いることができるが、例えば、特開昭54−63025号公報、特開昭58−154591号公報等に示された公知の方法に準じて製造したものを用いても良い。具体的には、2−ヒドロキシエチルメタクリレートと環状リン化合物とをトリエチルアミン等の塩基性触媒共存下で反応させ、次いで生成した環状リン化合物をトリメチルアミンで開環反応を行い、再結晶により精製する方法によって得ることができる。   As the MPC, a commercially available product can be used. For example, a product manufactured according to a known method disclosed in JP-A-54-63025, JP-A-58-154591 or the like may be used. good. Specifically, by a method in which 2-hydroxyethyl methacrylate and a cyclic phosphorus compound are reacted in the presence of a basic catalyst such as triethylamine, the resulting cyclic phosphorus compound is subjected to a ring-opening reaction with trimethylamine and purified by recrystallization. Obtainable.

本発明に用いるMPC共重合体は、MPCとブチルメタクリレートとを、適当なモル比で混合した単量体組成物を、公知の溶液重合、乳化重合、懸濁重合等の方法を用いて重合することにより製造することができる。
前記条件は、例えば、重合系を、窒素、二酸化炭素、ヘリウム等の不活性ガスの雰囲気下、重合温度0〜100℃、重合時間10分〜48時間の重合条件でラジカル重合させる方法により実施できる。重合に際しては、通常のラジカル重合開始剤を用いて行うことができる。
The MPC copolymer used in the present invention is obtained by polymerizing a monomer composition obtained by mixing MPC and butyl methacrylate in an appropriate molar ratio using a known method such as solution polymerization, emulsion polymerization or suspension polymerization. Can be manufactured.
The above conditions can be carried out, for example, by a method in which a polymerization system is radically polymerized in an inert gas atmosphere such as nitrogen, carbon dioxide, helium, etc. under polymerization conditions of a polymerization temperature of 0 to 100 ° C. and a polymerization time of 10 minutes to 48 hours. . The polymerization can be performed using a normal radical polymerization initiator.

ラジカル重合開始剤としては、例えば、2,2’−アゾビス(2−アミノジプロピル)二塩酸塩、4,4’−アゾビス(4−シアノ吉草酸)、2,2’−アゾビス(2−(5−メチル−2−イミダゾリン−2−イル)プロパン)二塩酸塩、2,2’−アゾビスイソブチルアミド二水和物、2,2’−アゾビスイソブチロニトリル(AIBN)、過硫酸アンモニウム、過硫酸カリウム、過酸化ベンゾイル、ジイソプロピルペルオキシジカーボネート、t−ブチルペルオキシ−2−エチルヘキサノエート、t−ブチルペルオキシピバレート、t−ブチルペルオキシジイソブチレート、過酸化ラウロイル、2,2’−アゾビス(2,4−ジメチルバレロニトリル)、t−ブチルペルオキシネオデカノエートが挙げられる。これらのラジカル重合開始剤は、単独で用いても2種以上を混合して用いても良い。
また、ラジカル重合開始剤に通常用いられるレドックス系の促進剤を併用しても良い。ラジカル重合開始剤の使用量は、単量体組成物100質量部に対して0.01〜5.0質量部が好ましい。
Examples of the radical polymerization initiator include 2,2′-azobis (2-aminodipropyl) dihydrochloride, 4,4′-azobis (4-cyanovaleric acid), 2,2′-azobis (2- ( 5-methyl-2-imidazolin-2-yl) propane) dihydrochloride, 2,2′-azobisisobutyramide dihydrate, 2,2′-azobisisobutyronitrile (AIBN), ammonium persulfate, Potassium persulfate, benzoyl peroxide, diisopropyl peroxydicarbonate, t-butylperoxy-2-ethylhexanoate, t-butylperoxypivalate, t-butylperoxydiisobutyrate, lauroyl peroxide, 2,2'-azobis (2,4-dimethylvaleronitrile), t-butylperoxyneodecanoate. These radical polymerization initiators may be used alone or in combination of two or more.
Moreover, you may use together the redox type accelerator normally used for a radical polymerization initiator. As for the usage-amount of a radical polymerization initiator, 0.01-5.0 mass parts is preferable with respect to 100 mass parts of monomer compositions.

MPC共重合体において、MPCに由来する構成単位と、前記ブチルメタアクリレートに由来する構成単位とのモル比は、目的に応じて適宜選択されて良いが、本発明のローションの透明性や速乾性が損なわれず、また肌荒れ防止機能を付与するために、3:7〜9:1の範囲である。
MPC共重合体の分子量は、通常、重量平均分子量5000〜5000000の範囲である。使用目的に応じて重量平均分子量は種々調整することができるが、本発明のローションの保存安定性、扱い易さ、肌荒れ防止性等を勘案した場合、好ましくは重量平均分子量100000〜1000000である。重量平均分子量が5000より小さい場合、肌荒れ防止機能が不足してしまい、また、5000000より大きい場合、調製したローションの透明性を損ねてしまうと同時に、速乾性も悪くなる恐れがある。
In the MPC copolymer, the molar ratio between the structural unit derived from MPC and the structural unit derived from the butyl methacrylate may be appropriately selected according to the purpose, but the transparency and quick-drying property of the lotion of the present invention. Is in the range of 3: 7 to 9: 1 in order not to be damaged and to impart a rough skin prevention function .
The molecular weight of the MPC copolymer is usually in the range of 5000 to 5000000 weight average molecular weight. Although the weight average molecular weight can be variously adjusted according to the purpose of use, the weight average molecular weight is preferably 100,000 to 1,000,000 considering the storage stability, ease of handling, rough skin prevention and the like of the lotion of the present invention. When the weight average molecular weight is less than 5,000, the rough skin prevention function is insufficient. When the weight average molecular weight is more than 5,000,000, the transparency of the prepared lotion is impaired, and at the same time, the quick drying property may be deteriorated.

MPC共重合体は、中でも入手性等の点で、MPCとブチルメタクリレートのモル比が8:2で、重量平均分子量100000〜1000000のMPC−ブチルメタクリレート共重合体が最も好ましく挙げられる。 MPC copolymers, in terms of availability and the like, among the molar ratio of MPC and butylmethacrylate is 8: 2, MPC-butyl methacrylate copolymer having a weight average molecular weight from 100,000 to 1,000,000 and the like and most preferably.

本発明のローションにおいて、MPC共重合体の配合割合は、本発明のローション全量当り0.001〜5.0質量%、好ましくは0.01〜0.5質量%である。該含有割合が0.001質量%未満では、肌荒れ防止効果が十分でなく、5.0質量%を超えると、得られるローションが白濁し、安定性が悪くなる恐れがある。   In the lotion of the present invention, the blending ratio of the MPC copolymer is 0.001 to 5.0% by mass, preferably 0.01 to 0.5% by mass, based on the total amount of the lotion of the present invention. If the content is less than 0.001% by mass, the effect of preventing rough skin is not sufficient, and if it exceeds 5.0% by mass, the resulting lotion may become cloudy and the stability may be deteriorated.

(メチルビニルエーテル−無水マレイン酸共重合体)
本発明に用いるメチルビニルエーテル−無水マレイン酸共重合体としては、例えば、ISP社から市販されている商品名GANTREZ ANシリーズの、メチルビニルエーテルと無水マレイン酸のモル比がほぼ1:1の重量平均分子量216000のメチルビニルエーテル−無水マレイン酸共重合体が挙げられる。
( Methyl vinyl ether-maleic anhydride copolymer )
Methyl vinyl ether Ru used in the present invention - maleic anhydride copolymer, for example, the trade name GANTREZ AN series commercially available from ISP Corporation, approximately 1 molar ratio of methyl vinyl ether and maleic anhydride: 1 weight-average Examples thereof include a methyl vinyl ether-maleic anhydride copolymer having a molecular weight of 216000.

メチルビニルエーテル−無水マレイン酸共重合体の重量平均分子量は、通常10000〜3000000、好ましくは100000〜2000000、特に好ましくは100000〜500000の範囲である。重量平均分子量が10000より小さい場合は、得られるローションが白濁してしまい、安定性が悪くなり、また重量平均分子量が3000000より大きい場合は、得られるローションのべとつき性が悪化し、使用感を損ねてしまう。 The weight average molecular weight of the methyl vinyl ether-maleic anhydride copolymer is usually in the range of 10,000 to 3,000,000, preferably 100,000 to 2,000,000, particularly preferably 100,000 to 500,000. When the weight average molecular weight is less than 10,000, the resulting lotion becomes cloudy and the stability is deteriorated. When the weight average molecular weight is greater than 3000000, the stickiness of the obtained lotion is deteriorated and the feeling of use is impaired. End up.

本発明のローションにおいて、メチルビニルエーテル−無水マレイン酸共重合体の配合割合は、本発明のローション全量当り、0.01〜2.0質量%、好ましくは0.05〜1.0質量%である。該含有割合が0.01質量%未満では、得られるローションがメチルビニルエーテル−無水マレイン酸共重合体の析出により白濁してしまい、また2.0質量%を超える場合も、メチルビニルエーテル−無水マレイン酸共重合体の析出により白濁してしまうと同時に、手に擦り込む際にべとつきやぬめりが増大する恐れがある。
本発明においては、メチルビニルエーテル−無水マレイン酸共重合体と塩基性物質の配合割合を適度に調整することで、本発明のローションが安定し、白濁を抑える効果があるため、界面活性剤を使用しなくとも透明な溶液とすることができる。
In the lotion of the present invention, the blending ratio of the methyl vinyl ether-maleic anhydride copolymer is 0.01 to 2.0% by mass, preferably 0.05 to 1.0% by mass, based on the total amount of the lotion of the present invention. . When the content is less than 0.01% by mass, the resulting lotion becomes cloudy due to precipitation of the methyl vinyl ether-maleic anhydride copolymer, and when it exceeds 2.0% by mass, methyl vinyl ether-maleic anhydride is also present. The copolymer may become cloudy due to precipitation of the copolymer, and at the same time, stickiness and slime may increase when rubbing into the hand.
In the present invention, a surfactant is used because the lotion of the present invention is stabilized and the white turbidity is suppressed by appropriately adjusting the blending ratio of the methyl vinyl ether-maleic anhydride copolymer and the basic substance. Even if it is not, it can be set as a transparent solution.

(塩基性物質)
本発明に用いる塩基性物質は、本発明のローションに用いる後述の低級アルコールに溶解可能なものが好ましく、例えば、水酸化ナトリウム、水酸化カリウム、ジエタノールアミン、トリエタノールアミン、ジイソプロパノールアミン、トリエチルアミンが挙げられる。これらの塩基性物質は、単独で用いても良いし、2種以上を混合して用いても差し支えない。
本発明のローションにおいて、塩基性物質の配合割合は、本発明のローション全量当たり、0.001〜3.0質量%である。0.001質量%未満では、得られるローションが白濁し、又は沈殿が生じて、安定性を損ねる恐れがある。また3.0質量%を超えると、ローションのpHがアルカリ性側に大きくシフトし、使用により肌にたるみが生じ、また、傷みやかぶれを惹き起こす恐れがある。
(Basic substance)
The basic substance used in the present invention is preferably soluble in the lower alcohol described later used in the lotion of the present invention, and examples thereof include sodium hydroxide, potassium hydroxide, diethanolamine, triethanolamine, diisopropanolamine, and triethylamine. It is done. These basic substances may be used alone or in combination of two or more.
In the lotion of the present invention, the mixing ratio of the basic substance is 0.001 to 3.0% by mass based on the total amount of the lotion of the present invention. If the amount is less than 0.001% by mass, the resulting lotion may become cloudy or precipitate, which may impair stability. On the other hand, if it exceeds 3.0% by mass, the pH of the lotion is greatly shifted to the alkaline side, the skin may become sagging due to use, and there is a risk of causing damage or rash.

(低級アルコール)
本発明に用いる低級アルコールとしては、例えば、メタノール、エタノール、イソプロパノールが挙げられ、使用に際しては1種又は2種以上を混合して用いても良い。好ましくは、殺菌力や使用感の向上等を考慮し、エタノール及び/又はイソプロパノールが好ましい。
本発明のローションにおいて、低級アルコールの配合割合は、本発明のローション全量当り、50質量%以上、通常50〜98質量%、好ましくは60〜90質量%、更に好ましくは75〜85質量%の範囲である。50質量%未満の場合、十分な殺菌性と速乾性が得られず、また98質量%を超えて配合しても効果が得られない。
(Lower alcohol)
Examples of the lower alcohol used in the present invention include methanol, ethanol, and isopropanol. In use, one kind or a mixture of two or more kinds may be used. Preferably, ethanol and / or isopropanol are preferable in consideration of sterilizing power and improvement in usability.
In the lotion of the present invention, the proportion of the lower alcohol is 50% by mass or more, usually 50 to 98% by mass, preferably 60 to 90% by mass, more preferably 75 to 85% by mass, based on the total amount of the lotion of the present invention. It is. When the amount is less than 50% by mass, sufficient bactericidal properties and quick-drying properties cannot be obtained, and even when the amount exceeds 98% by mass, no effect is obtained.

(水)
本発明に用いる水は、本発明の目的を損なわない範囲で特に限定されないが、精製水が望ましい。またその配合割合は、本発明の殺菌力の向上及び速乾性の保持を考慮し、ローション全量が100質量%となるように適宜決定することができる。通常、本発明のローション全量当り、0.01〜45質量%、好ましくは0.01〜30質量%、更に好ましくは10〜20質量%である。水の配合割合が0.01質量%未満では、殺菌力が低下する恐れがあり、一方、45質量%を超えると、殺菌力が低下すると同時に、速乾性も失われる恐れがある。
(water)
Although the water used for this invention is not specifically limited in the range which does not impair the objective of this invention, Purified water is desirable. In addition, the blending ratio can be appropriately determined so that the total amount of the lotion becomes 100% by mass in consideration of the improvement of the bactericidal power and the maintenance of quick drying properties of the present invention. Usually, the total amount of the lotion of the present invention is 0.01 to 45% by mass, preferably 0.01 to 30% by mass, and more preferably 10 to 20% by mass. If the mixing ratio of water is less than 0.01% by mass, the sterilizing power may be reduced. On the other hand, if it exceeds 45% by mass, the sterilizing power may be decreased and at the same time quick drying may be lost.

(湿潤剤)
本発明のローションは、本発明の目的を逸脱しない範囲で、公知の皮膚外用剤に使用される湿潤剤を含んでも良い。該湿潤剤としては、例えば、エチレングリコール、プロピレングリコール、ジプロピレングリコール、1,3−ブチレングリコール、1,4−ブチレングリコール、ペンチレングリコール、へキシレングリコール、イソプレングリコール、エチルヘキサンジオール、イソペンチルジオール、グリセリン、ジグリセリン、ソルビトール、キシリトール、マルチトール、マンニトール、エリスリトール等のポリオール系化合物類が挙げられ、使用に際しては、単独若しくは2種以上の混合物として用いることができる。これら湿潤剤の中でも、肌へのなじみの良さや保湿性の高さから、エチレングリコール、プロピレングリコール、1,3−ブチレングリコール、グリセリンがより好ましい。
湿潤剤を含有させる場合の割合は、本発明の所望の効果を損なうことのない範囲で、本発明のローション全量当り、通常0.1〜5.0質量%が好ましい。
(Wetting agent)
The lotion of the present invention may contain a humectant used for a known skin external preparation without departing from the object of the present invention. Examples of the wetting agent include ethylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, pentylene glycol, hexylene glycol, isoprene glycol, ethylhexanediol, and isopentyldiol. And polyol compounds such as glycerin, diglycerin, sorbitol, xylitol, maltitol, mannitol, erythritol and the like, and can be used alone or as a mixture of two or more. Among these humectants, ethylene glycol, propylene glycol, 1,3-butylene glycol, and glycerin are more preferable because of their familiarity with the skin and high moisturizing properties.
The proportion in the case of containing a wetting agent is preferably 0.1 to 5.0% by mass based on the total amount of the lotion of the present invention as long as the desired effect of the present invention is not impaired.

(殺菌剤)
本発明のローションは、本発明の目的を逸脱しない範囲で、公知の皮膚用消毒剤に使用される殺菌剤を含んでも良い。該殺菌剤としては、例えば、本発明のローションの殺菌効果を増強し、その効果をより持続させるために、塩化ベンザルコニウム、塩化ベンゼトニウム等の逆性石鹸系化合物;クレゾール等のフェノール系化合物;ヨウ素イオン、ヨウドホルム、ヨードホア等のヨウ素化合物が挙げられる。これらは使用に際して1種又は2種以上混合して用いることができる。好ましくは、殺菌効果と抗菌効果の持続性の点から塩化ベンザルコニウム又は塩化ベンゼトニウムが挙げられる。
殺菌剤を含有させる場合の割合は、本発明のローション全量当り、通常0.01〜5.0質量%が好ましい。
(Fungicide)
The lotion of the present invention may contain a disinfectant used for a known skin disinfectant without departing from the object of the present invention. Examples of the disinfectant include, in order to enhance the disinfecting effect of the lotion of the present invention and to maintain the effect, an inverse soap compound such as benzalkonium chloride and benzethonium chloride; a phenol compound such as cresol; Examples include iodine compounds such as iodine ion, iodoform, and iodophor. These can be used alone or in combination of two or more. Preferably, benzalkonium chloride or benzethonium chloride is used from the viewpoint of durability of the bactericidal effect and the antibacterial effect.
The proportion in the case of containing a bactericidal agent is usually preferably 0.01 to 5.0% by mass based on the total amount of the lotion of the present invention.

(その他)
本発明のローションは、前記成分の他に、本発明の目的を逸脱しない範囲で、公知の皮膚外用剤に使用される添加剤を含有させても良い。前記添加剤としては、例えば、色材、有機酸、酸化防止剤、安定剤、防腐剤、金属イオン封鎖剤、香料、色素が挙げられ、本発明の性能を損なわない範囲で適宜配合することができる。
(Other)
The lotion of the present invention may contain, in addition to the above-mentioned components, additives that are used for known skin external preparations without departing from the object of the present invention. Examples of the additive include coloring materials, organic acids, antioxidants, stabilizers, preservatives, sequestering agents, fragrances, and pigments, and may be appropriately blended within a range that does not impair the performance of the present invention. it can.

(本発明のローションの特徴)
本発明のローションは、低級アルコールを主成分とするので速乾性に優れる。この速乾性は、例えば、次の方法で測定することができる。
即ち、湿度40%、室温20℃のクリーンルーム内で15分間安静にした後、本発明のローション2.0mLを手に取り、両手を擦り合わせてローションを手全体に広げ、自然乾燥させる。その際、ローションを塗布してから乾燥するまでの時間を測定する方法により測ることができる。該速乾性は、通常、ローションを塗布してから乾燥するまでの時間が、30秒以内と感じる場合が特に好ましい。
(Features of the lotion of the present invention)
The lotion of the present invention is excellent in quick drying because it contains a lower alcohol as a main component. This quick-drying can be measured, for example, by the following method.
That is, after resting in a clean room with a humidity of 40% and a room temperature of 20 ° C. for 15 minutes, take 2.0 ml of the lotion of the present invention and rub both hands to spread the lotion over the whole hand and let it dry naturally. In that case, it can measure by the method of measuring the time after apply | coating a lotion to drying. The quick-drying is particularly preferred when the time from applying the lotion to drying is usually felt within 30 seconds.

本発明のローションは、透明であって、好ましくは無色透明である。この透明性については、例えば、次の方法で測定することができる。
即ち、ポリスチレン製ディスポセル(標準型)に試験液約4mLを取り、600nmにおける透過率(%T)を紫外可視分光光度計(日本分光(株)製、Ubestシリーズ V−550型紫外可視分光光度計)を用いて測定することができる。
本発明においては、このような測定方法により、透過率が90%以上の場合を透明であると規定する。
The lotion of the present invention is transparent and preferably colorless and transparent. This transparency can be measured, for example, by the following method.
That is, about 4 mL of the test solution is taken in a polystyrene disposable cell (standard type), and the transmittance (% T) at 600 nm is measured with an ultraviolet-visible spectrophotometer (manufactured by JASCO Corporation, Ubest series V-550 type UV-visible spectrophotometer. Can be measured.
In the present invention, the case where the transmittance is 90% or more is defined as transparent by such a measuring method.

本発明のローションは、優れた殺菌効果を有するが、該殺菌効果は、例えば、次の方法により測定することができる。
即ち、まず、実験前の手の菌数測定のために、手をパームスタンプ(日研生物医学研究所製、一般細菌(SCD)培地)上にスタンプし、次いで、本発明のローション3mLを手指に採り、20秒間擦り込む。ローション擦り込み直後に再度手指をパームスタンプ培地にスタンプし、実験終了後、スタンプした培地を37℃の孵卵器内で24時間培養し、培地上のコロニー数をカウントし、菌の実験前コロニー数に対する本発明のローション擦り込み直後のコロニー数の百分率を計算することにより測定することができる。
殺菌性は、菌の実験前コロニー数に対するローション擦り込み直後のコロニー数の減少率が90%以上であることが好ましい。
The lotion of the present invention has an excellent bactericidal effect, and the bactericidal effect can be measured, for example, by the following method.
That is, first of all, a hand is stamped on a palm stamp (manufactured by Nikken Biomedical Research Institute, General Bacterial (SCD) medium) to measure the number of bacteria before the experiment, and then 3 mL of the lotion of the present invention is fingered And rub for 20 seconds. Immediately after rubbing the lotion, fingers are stamped on the palm stamp medium again. After the experiment is completed, the stamped medium is cultured in an incubator at 37 ° C. for 24 hours, and the number of colonies on the medium is counted. It can be measured by calculating the percentage of the number of colonies immediately after rubbing the lotion of the present invention.
In terms of bactericidal properties, it is preferable that the rate of decrease in the number of colonies immediately after rubbing the lotion with respect to the number of colonies before the experiment is 90% or more.

本発明のローションは、更に、肌荒れ防止効果に優れる。該肌荒れ防止効果は、例えば、次の方法で評価することができる。
即ち、本発明のローション3mLを手に採り、30秒間擦り込む操作を約2時間間隔で1日5回、1週間連続して実施した後、ビデオマイクロスコープを用いて皮膚表面の状態を観察する方法により評価することができる。このような観察において、本発明のローションは、高濃度の低級アルコールを含んでいるにも関わらず、塗布し続けた場合にも、皮膚状態が健康に近く、肌荒れの症状が確認し難い。
The lotion of the present invention is further excellent in the effect of preventing rough skin. The rough skin prevention effect can be evaluated by, for example, the following method.
That is, 3 mL of the lotion according to the present invention is picked up and rubbed for 30 seconds, 5 times a day for about 2 hours, and continuously for 1 week, and then the condition of the skin surface is observed using a video microscope. It can be evaluated by the method. In such observation, even though the lotion of the present invention contains a high concentration of lower alcohol, even when it is continuously applied, the skin condition is close to health and it is difficult to confirm symptoms of rough skin.

(本発明のローションの製造方法)
本発明のローションは、前記各成分を公知の方法で適宜混合して製造でき、例えば、次のように製造することもできる。
まず、水に、メチルビニルエーテル−無水マレイン酸共重合体を加え、70〜90℃で完全に溶解するまで撹拌した後、室温まで冷却し、冷却が完了したら塩基性物質を加えてさらに撹拌する。均一に混合したことを確認した後、MPC共重合体を添加し、再び混合溶解して溶液Aを得る。一方、低級アルコールに本発明の所望の効果を損なうことのない範囲で添加物を加え、均一になるまで撹拌して溶液Bを得る。前記溶液Bに、前記溶液Aを添加し、系全体が均一になるまで充分撹拌することで、本発明のローションを簡便に得ることができる。
(Method for producing lotion of the present invention)
The lotion of the present invention can be produced by appropriately mixing the above-mentioned components by a known method. For example, the lotion can also be produced as follows.
First, methyl vinyl ether-maleic anhydride copolymer is added to water and stirred at 70 to 90 ° C. until completely dissolved, then cooled to room temperature, and when cooling is completed, a basic substance is added and further stirred. After confirming uniform mixing, the MPC copolymer is added and mixed and dissolved again to obtain solution A. On the other hand, an additive is added to the lower alcohol as long as the desired effect of the present invention is not impaired, and the mixture is stirred until uniform to obtain a solution B. By adding the solution A to the solution B and sufficiently stirring until the entire system becomes uniform, the lotion of the present invention can be obtained easily.

(本発明のローションの使用方法及びその形態)
本発明のローションの使用方法は特に限定されないが、使用時の簡便さや安全性の観点等から、ローションをスプレーポンプ容器に充填した噴霧タイプ又はボトル容器に充填した手に取るタイプの形態として使用することが望ましい。該使用に際しては、噴霧タイプの場合、手や肌に適量噴霧して消毒することができる。ボトル容器に充填した手に取るタイプの場合は、手に適量取り、手や肌にこすりつけ、擦り込むように使用することで消毒することができる。
(Method of using the lotion of the present invention and its form)
The method of using the lotion of the present invention is not particularly limited, but from the viewpoint of convenience and safety during use, the lotion is used as a spray type in which a spray pump container is filled or a hand-filled type in which a bottle container is filled. It is desirable. At the time of use, in the case of a spray type, it can be disinfected by spraying an appropriate amount on hands and skin. In the case of the type that is taken in the hand filled in the bottle container, it can be sterilized by taking an appropriate amount in the hand, rubbing it on the hand or skin, and rubbing it.

以下、本発明を実施例及び比較例により更に詳細に説明するが、本発明はこれらに限定されない。
実施例1
精製水11.96gに、メチルビニルエーテル−無水マレイン酸共重合体(商品名Gantrez AN−119、アイエスピー・ジャパン(株)製、分子量Mw=216000)0.2gを加え、80℃で同共重合体が完全に溶解するまで撹拌した。次いで、室温まで冷却し、冷却が完了したら水酸化ナトリウム水溶液(1mol/L)0.6gを加えてさらに撹拌した。充分に混合したことを確認した後、MPC共重合体の5質量%水溶液0.4gを添加し、再び混合溶解した。得られたメチルビニルエーテル−無水マレイン酸共重合体水溶液を日局エタノール80.1gに添加し、系全体が均一になるまで充分撹拌を行い、ローション100gを調製した。得られたローションの600nmにおける透過率(%T)を紫外可視分光光度計により測定した。透過率は、90%以上が合格とされる。結果を表1に示す。
Hereinafter, although an example and a comparative example explain the present invention still in detail, the present invention is not limited to these.
Example 1
To 11.96 g of purified water, 0.2 g of methyl vinyl ether-maleic anhydride copolymer (trade name Gantrez AN-119, manufactured by IPS Japan Co., Ltd., molecular weight Mw = 216000) was added, and the same weight was obtained at 80 ° C. Stir until the coalescence is completely dissolved. Subsequently, it cooled to room temperature, and when cooling was completed, 0.6 g of sodium hydroxide aqueous solution (1 mol / L) was added, and also it stirred. After confirming sufficient mixing, 0.4 g of a 5% by weight aqueous solution of MPC copolymer was added and mixed and dissolved again. The obtained methyl vinyl ether-maleic anhydride copolymer aqueous solution was added to 80.1 g of JP JP ethanol, and the mixture was sufficiently stirred until the entire system became uniform to prepare 100 g of a lotion. The transmittance (% T) at 600 nm of the obtained lotion was measured with an ultraviolet-visible spectrophotometer. A transmittance of 90% or more is considered acceptable. The results are shown in Table 1.

実施例2〜6
配合成分の組成を表1に示すものに変更した以外は、実施例1に記載の方法に準じて、実施例2〜6のローションを調製した。得られたローションの透過率を実施例1と同様に測定した。結果を表1に示す。
Examples 2-6
Lotions of Examples 2 to 6 were prepared according to the method described in Example 1, except that the composition of the blending components was changed to that shown in Table 1. The transmittance of the obtained lotion was measured in the same manner as in Example 1. The results are shown in Table 1.

実施例7
精製水11.96gに、実施例1と同様なメチルビニルエーテル−無水マレイン酸共重合体0.2gを加え、80℃で同共重合体が完全に溶解するまで撹拌した。次いで、室温まで冷却し、冷却が完了したら水酸化ナトリウム水溶液(1mol/L)0.6gを加えてさらに撹拌した。充分に混合したことを確認した後、MPC重合体の5質量%水溶液0.4gを添加し、再び混合溶解した。
一方、日局エタノール80.1gに、イソプロパノール5.0g、塩化ベンザルコニウム0.24g、濃グリセリン1.0g及びミリスチン酸イソプロピル0.5gを加え、充分に撹拌した。
得られたエタノール溶液に、上記で調製したメチルビニルエーテル−無水マレイン酸共重合体水溶液を添加し、更に充分に撹拌してローション100gを調製した。得られたローションの透過率を実施例1と同様に測定した。結果を表1に示す。
Example 7
To 11.96 g of purified water, 0.2 g of the same methyl vinyl ether-maleic anhydride copolymer as in Example 1 was added and stirred at 80 ° C. until the copolymer was completely dissolved. Subsequently, it cooled to room temperature, and when cooling was completed, 0.6 g of sodium hydroxide aqueous solution (1 mol / L) was added, and also it stirred. After confirming sufficient mixing, 0.4 g of a 5% by weight aqueous solution of MPC polymer was added and mixed and dissolved again.
On the other hand, 5.0 g of isopropanol, 0.24 g of benzalkonium chloride, 1.0 g of concentrated glycerin and 0.5 g of isopropyl myristate were added to 80.1 g of JP ethanol and stirred sufficiently.
The methyl vinyl ether-maleic anhydride copolymer aqueous solution prepared above was added to the obtained ethanol solution, and further stirred sufficiently to prepare 100 g of a lotion. The transmittance of the obtained lotion was measured in the same manner as in Example 1. The results are shown in Table 1.

実施例8〜10
配合成分の組成を表1に示すように変更した以外は、実施例7に記載の方法に準じて、実施例8〜10のローションを調製した。得られたローションの透過率を実施例1と同様に測定した。結果を表1に示す。
Examples 8-10
Lotions of Examples 8 to 10 were prepared according to the method described in Example 7, except that the composition of the ingredients was changed as shown in Table 1. The transmittance of the obtained lotion was measured in the same manner as in Example 1. The results are shown in Table 1.

Figure 0004853238
Figure 0004853238

比較例1〜5
配合成分の組成を表2に示すように変更した以外は、実施例1に記載の方法に準じて、比較例1〜5のローションを調製した。得られたローションの透過率を実施例1と同様に測定した。結果を表2に示す。
Comparative Examples 1-5
Lotions of Comparative Examples 1 to 5 were prepared according to the method described in Example 1 except that the composition of the blending components was changed as shown in Table 2. The transmittance of the obtained lotion was measured in the same manner as in Example 1. The results are shown in Table 2.

比較例6〜9
配合成分の組成を表2に示すように変更した以外は、実施例7に記載の方法に準じて、比較例6〜9のローションを調製した。得られたローションの透過率を実施例1と同様に測定した。結果を表2に示す。
Comparative Examples 6-9
Lotions of Comparative Examples 6 to 9 were prepared according to the method described in Example 7 except that the composition of the blending components was changed as shown in Table 2. The transmittance of the obtained lotion was measured in the same manner as in Example 1. The results are shown in Table 2.

比較例10
精製水13.50gに、界面活性剤としてポリオキシエチレン硬化ヒマシ油(商品名ユニオックスHC−60、日本油脂株式会社製、HLB:15.0)1.0gを加え、80℃で同界面活性剤が完全に溶解するまで撹拌した。その後室温まで冷却し、冷却が完了したところで実施例1と同様なMPC重合体の5質量%水溶液0.4gを添加し、再び混合溶解した。
一方、日局エタノール80.1gに、イソプロパノール5.0gを加え、充分に撹拌を行い、得られたエタノール溶液に、上記で調製したポリオキシエチレン硬化ヒマシ油水溶液を添加し、更に充分に撹拌してローション100gを調製した。得られたローションの透過率を実施例1と同様に測定した。結果を表2に示す。
Comparative Example 10
To 13.50 g of purified water, 1.0 g of polyoxyethylene hydrogenated castor oil (trade name UNIOX HC-60, manufactured by Nippon Oil & Fats Co., Ltd., HLB: 15.0) is added as a surfactant. Stir until the agent is completely dissolved. Thereafter, the mixture was cooled to room temperature, and when the cooling was completed, 0.4 g of a 5 mass% aqueous solution of MPC polymer similar to that in Example 1 was added, and mixed and dissolved again.
On the other hand, 5.0 g of isopropanol was added to 80.1 g of JP ethanol, and the mixture was sufficiently stirred. The polyoxyethylene hydrogenated castor oil aqueous solution prepared above was added to the obtained ethanol solution, and the mixture was further stirred sufficiently. 100 g of a lotion was prepared. The transmittance of the obtained lotion was measured in the same manner as in Example 1. The results are shown in Table 2.

比較例11〜13
配合成分の組成を表2に示すように変更した以外は、比較例10に記載の方法に準じて、比較例11〜13のローションを調製した。得られたローションの透過率を実施例1と同様に測定した。結果を表2に示す。
Comparative Examples 11-13
Lotions of Comparative Examples 11 to 13 were prepared according to the method described in Comparative Example 10, except that the composition of the blending components was changed as shown in Table 2. The transmittance of the obtained lotion was measured in the same manner as in Example 1. The results are shown in Table 2.

Figure 0004853238
Figure 0004853238

試験例
男女10名をモニターとして、実施例1〜10及び比較例8、9及び10で調製したローションについて、以下に示す、速乾性、殺菌性及びその持続性、並びに肌荒れに対する影響(肌荒れ防止)を評価した。結果を表3に示す。
(速乾性の評価)
湿度40%、室温20℃の恒湿・恒温環境下で15分間安静にした後、ローション2.0mLを手に取り、ローションを手全体に広げ、自然乾燥させた。その際、塗布直後から乾燥するまでの時間について、平均時間をとり、それをもとに、平均乾燥時間が30秒未満の場合を適切として○、30秒以上を遅いとして×と評価した。
Test Example Using 10 men and women as monitors, the lotions prepared in Examples 1 to 10 and Comparative Examples 8, 9 and 10 have the following effects on quick dryness, bactericidal properties and their durability, and rough skin (preventing rough skin) Evaluated. The results are shown in Table 3.
(Evaluation of quick drying)
After resting for 15 minutes in a constant humidity and constant temperature environment with a humidity of 40% and a room temperature of 20 ° C., 2.0 ml of lotion was taken, and the lotion was spread over the entire hand and allowed to dry naturally. At that time, regarding the time from immediately after coating to drying, an average time was taken, and based on this, the case where the average drying time was less than 30 seconds was appropriately evaluated as ◯, and the case where 30 seconds or more were delayed was evaluated as x.

(殺菌性評価)
まず実験前の手の菌数測定のために、手をパームスタンプ培地(日研生物医学研究所製、一般細菌(SCD)培地)上にスタンプした。次いで、前記ローション3mLを手に採り、ローションを手全体に均一に広げた。ローション塗布直後及び2時間経過後(その間、モニターには手洗いを控え、読書をして過ごしてもらう)に再度手指をパームスタンプ培地にスタンプした。実験終了後、スタンプした培地を37℃の孵卵器内で24時間培養し、培地上のコロニー数をカウントした。
殺菌性は、菌の実験前コロニー数に対するローション塗布直後のコロニー数の百分率をとりこれを平均した。また殺菌性の持続性は、菌の実験前コロニー数に対するローション塗布2時間経過後のコロニー数の百分率をとりこれを平均した。効果判定は、菌の減少率により、減少率90%以上を著効、50〜89%を有効、1〜49%をやや有効、0%以下を無効とした。
(Bactericidal evaluation)
First, the hand was stamped on a palm stamp medium (manufactured by Nikken Biomedical Research Institute, General Bacterial (SCD) medium) to measure the number of bacteria before the experiment. Next, 3 mL of the lotion was taken into the hand, and the lotion was spread evenly over the entire hand. Immediately after application of the lotion and after 2 hours (in the meantime, refrain from washing hands on the monitor and spending time reading), the fingers were stamped on the palm stamp medium again. After the experiment was completed, the stamped medium was cultured in an incubator at 37 ° C. for 24 hours, and the number of colonies on the medium was counted.
The bactericidal property was obtained by taking the percentage of the number of colonies immediately after application of lotion with respect to the number of colonies before the experiment of the bacteria and averaging this. Moreover, the bactericidal durability was averaged by taking the percentage of the number of colonies after 2 hours of application of the lotion to the number of colonies before the experiment of the fungus. In the effect determination, the reduction rate of 90% or more was markedly effective, 50 to 89% was effective, 1 to 49% was slightly effective, and 0% or less was invalid, depending on the bacteria reduction rate.

(肌荒れ防止評価)
前記ローション3mLを手に採り、30秒間擦り込む操作を約2時間間隔で1日5回、1週間連続して実施した後、ビデオマイクロスコープを用いて手の皮膚表面の状態を観察した。
肌荒れ状態の評価は、健常状態から変化が無いものを変化なし(4点)、肌の平滑化又は紅斑が僅かに確認されたものをやや悪化(3点)、肌の平滑化又は紅斑がはっきり確認できるものを悪化(2点)、肌の平滑化が確認され、更に紅斑の拡大、浮腫が確認されるものを明らかに悪化(1点)として、その点数をスコアー化した。その評価結果を平均して、平均3.0点以上を合格、平均3.0点未満を不合格と判定した。尚、明らかに悪化の結果が一人でもあった場合は、平均点に係わらず不合格と判定した。
(Rough skin prevention evaluation)
An operation of picking up 3 mL of the lotion and rubbing for 30 seconds was performed 5 times a day at about 2 hour intervals for one week, and then the condition of the skin surface of the hand was observed using a video microscope.
Evaluation of rough skin condition shows no change from normal condition (4 points), slight deterioration of skin smoothness or erythema slightly confirmed (3 points), smooth skin or erythema clearly Those that could be confirmed deteriorated (2 points), smoothed skin was confirmed, and those that confirmed erythema expansion and edema were clearly deteriorated (1 point), and the score was scored. The evaluation results were averaged, and an average of 3.0 points or more was determined to be acceptable, and an average of less than 3.0 points was determined to be unacceptable. In addition, when the result of aggravation was obvious even by one person, it was determined to be rejected regardless of the average score.

Figure 0004853238
Figure 0004853238

以上の結果、表1〜3より、本発明の消毒用速乾性透明ローションは、無色透明のローションであり、且つ通常の消毒用ローションよりも高濃度の低級アルコールを含有しているため、殺菌剤が少ないにもかかわらず、速乾性および殺菌力に優れていることが明らかになった。また、特にメチルビニルエーテル−無水マレイン酸共重合体と塩基性物質をバランス良く適量配合することにより、含有物の析出による白濁を抑え、ローションの安定性を高めていることが明らかとなった。更に、本発明の消毒用速乾性透明ローションは、高濃度の低級アルコールを含有しているにも関わらず、肌荒れ防止効果に優れた製剤であることも明らかになった。
従って、本発明の消毒用速乾性透明ローションは、医療現場や食品業界等で、消毒剤を繰り返し使用する機会の多い現場において有効に用いることができるものと評価できる。
As a result, from Tables 1 to 3, the quick-drying transparent lotion for disinfection of the present invention is a colorless transparent lotion and contains a higher concentration of lower alcohol than a normal disinfecting lotion. In spite of the small amount, it became clear that it was excellent in quick-drying and bactericidal power. Moreover, it became clear that mixing the methyl vinyl ether-maleic anhydride copolymer and the basic substance in an appropriate amount in a balanced manner suppresses white turbidity due to precipitation of inclusions and enhances the stability of the lotion. Furthermore, it became clear that the quick-drying transparent lotion for disinfection of the present invention is a preparation excellent in the effect of preventing rough skin, despite containing a high concentration of lower alcohol.
Therefore, it can be evaluated that the quick-drying transparent lotion for disinfection of the present invention can be effectively used in medical sites, the food industry, and the like where there are many opportunities to repeatedly use disinfectants.

Claims (2)

2−(メタ)アクリロイルオキシエチルホスホリルコリンと、ブチルメタクリレートとを重合した、前記2−(メタ)アクリロイルオキシエチルホスホリルコリンに由来する構成単位と前記ブチルメタクリレートに由来する構成単位とのモル比が3:7〜9:1である重量平均分子量5000〜5000000のMPC共重合体0.001〜5質量%と、重量平均分子量10000〜3000000のメチルビニルエーテル−無水マレイン酸共重合体0.01〜2質量%と、塩基性物質0.001〜3質量%と、低級アルコール50質量%以上と、水とを含むことを特徴とする消毒用速乾性透明ローション。 The molar ratio of the structural unit derived from 2- (meth) acryloyloxyethyl phosphorylcholine and the structural unit derived from butyl methacrylate obtained by polymerizing 2- (meth) acryloyloxyethyl phosphorylcholine and butyl methacrylate is 3: 7. 0.001 to 5% by mass of a MPC copolymer having a weight average molecular weight of 5000 to 5000000, and 0.01 to 2% by mass of a methyl vinyl ether-maleic anhydride copolymer having a weight average molecular weight of 10,000 to 3000000. A quick-drying transparent lotion for disinfection, comprising 0.001 to 3% by mass of a basic substance, 50% by mass or more of a lower alcohol, and water. 塩基性物質が、水酸化ナトリウム、水酸化カリウム、ジエタノールアミン、トリエタノールアミン、ジイソプロパノールアミン、トリエチルアミンよりなる群から選ばれる1種又は2種以上である請求項1に記載の消毒用速乾性透明ローション。   The quick-drying transparent lotion for disinfection according to claim 1, wherein the basic substance is one or more selected from the group consisting of sodium hydroxide, potassium hydroxide, diethanolamine, triethanolamine, diisopropanolamine, and triethylamine. .
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