JP2004256805A - Framed soap composition - Google Patents

Framed soap composition Download PDF

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JP2004256805A
JP2004256805A JP2004027594A JP2004027594A JP2004256805A JP 2004256805 A JP2004256805 A JP 2004256805A JP 2004027594 A JP2004027594 A JP 2004027594A JP 2004027594 A JP2004027594 A JP 2004027594A JP 2004256805 A JP2004256805 A JP 2004256805A
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soap
fatty acid
framed
soap composition
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JP3828547B2 (en
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Shigeru Kuroda
茂 黒田
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Kao Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a highly hard framed soap composition with rapid caking. <P>SOLUTION: The framed soap composition contains (A) 25-60 weight% of fatty acid soap with 20 weight% or less of insoluble matters, (B) 0.1-5 weight% of sodium chloride, (C) 0.1-5 weight% of sodium sulfate, (D) 5-30 weight% of a polyol and water. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

本発明は、枠練り石鹸組成物に関する。   The present invention relates to a framed soap composition.

固形石鹸は、脂肪酸石鹸、ポリオール類、無機塩等の原料を溶融混合してニートソープを調製した後、固化させることにより製造される。原料のうち、無機塩としては、固形石鹸の起泡性や透明性を高めるため、塩化ナトリウム(例えば、特許文献1)、硫酸ナトリウム(例えば、特許文献2)、炭酸水素塩及び/又は炭酸塩(例えば、特許文献3)等が用いられている。   Bar soap is produced by melting and mixing raw materials such as fatty acid soap, polyols and inorganic salts to prepare a neat soap, and then solidifying it. Among the raw materials, as inorganic salts, sodium chloride (for example, Patent Literature 1), sodium sulfate (for example, Patent Literature 2), bicarbonate and / or carbonate in order to enhance the foaming property and transparency of the bar soap (For example, Patent Document 3) and the like are used.

かかる無機塩の種類や配合量により、得られる固形石鹸の固化挙動や硬度が異なる。例えば、無機塩として塩化ナトリウムを用いた場合、硬度を上げるために多量に配合すると、ニートソープが分離してしまうことから、その配合量は制限される。また、硫酸ナトリウムを用いた場合には、固化が遅く、生産性が悪いなどの欠点があり、炭酸ナトリウムを用いた場合には、組成物の溶融粘度が高く、生産性が悪くなってしまう。   The solidification behavior and hardness of the obtained solid soap vary depending on the kind and the amount of the inorganic salt. For example, when sodium chloride is used as the inorganic salt, if it is added in a large amount in order to increase the hardness, the neat soap is separated, so the amount is limited. Further, when sodium sulfate is used, there are disadvantages such as slow solidification and poor productivity, and when sodium carbonate is used, the melt viscosity of the composition is high and productivity is deteriorated.

一方、石鹸組成物の固化を促進させるため、脂肪酸石鹸及び無機塩とともに、非イオン界面活性剤を併用した石鹸組成物が提案されている(特許文献4)。しかしながら、非イオン界面活性剤は一般に脂肪酸石鹸に比べて高価であるため、コストアップにつながるという問題があった。   On the other hand, in order to promote the solidification of the soap composition, a soap composition using a nonionic surfactant in combination with a fatty acid soap and an inorganic salt has been proposed (Patent Document 4). However, since nonionic surfactants are generally more expensive than fatty acid soaps, there is a problem that the cost is increased.

さらに、硬度、透明性に優れたクレンジングバーを得るため、脂肪酸石鹸のうち、ナトリウム石鹸の50%以上を不溶性石鹸とすることが提案されている(特許文献5)。しかしながら、不溶性石鹸を多量に配合すると、他の起泡性界面活性剤を併用しなければ十分な泡立ちが確保できない。
特開2002−80896号公報 特開2001−64690号公報 特開2001−64691号公報 特開平10−168494号公報 特表平10−503546号公報
Furthermore, in order to obtain a cleansing bar excellent in hardness and transparency, it has been proposed that 50% or more of sodium soap among fatty acid soaps is insoluble soap (Patent Document 5). However, if a large amount of insoluble soap is blended, sufficient foaming cannot be ensured unless another foaming surfactant is used in combination.
JP-A-2002-80896 JP 2001-64690 A JP 2001-64691 A JP-A-10-168494 Japanese Patent Publication No. 10-503546

本発明の目的は、固化が速く、しかも高い硬度の枠練り石鹸組成物を提供することにある。   It is an object of the present invention to provide a framed soap composition which solidifies quickly and has a high hardness.

本発明者らは、無機塩として、塩化ナトリウムと硫酸ナトリウムを特定の量で組み合わせて用いることにより、非イオン界面活性剤を併用しなくても、固化が速く、硬度が高い上、使用時には泡立ちが良い枠練り石鹸組成物が得られることを見出した。   The present inventors use sodium chloride and sodium sulfate in combination in a specific amount as an inorganic salt, whereby solidification is fast, hardness is high, and foaming occurs at the time of use without using a nonionic surfactant in combination. It was found that a good framed soap composition could be obtained.

本発明は、次の成分(A)〜(D):
(A)不溶分が20重量%以下である脂肪酸石鹸 25〜60重量%、
(B)塩化ナトリウム 0.1〜5重量%、
(C)硫酸ナトリウム 0.1〜5重量%、
(D)ポリオール 5〜30重量%
及び水を含有する枠練り石鹸組成物を提供するものである。
The present invention comprises the following components (A) to (D):
(A) 25 to 60% by weight of a fatty acid soap having an insoluble content of 20% by weight or less,
(B) 0.1-5% by weight of sodium chloride,
(C) 0.1 to 5% by weight of sodium sulfate,
(D) 5 to 30% by weight of polyol
And a water-containing framed soap composition.

本発明の枠練り石鹸組成物は、固化が速く、硬度が高い上に、使用時には泡立ちが良い。   The framed soap composition of the present invention solidifies quickly, has high hardness, and has good foaming when used.

本発明で用いる成分(A)の脂肪酸石鹸としては、炭素数8〜22の飽和又は不飽和脂肪酸のアルカリ金属塩(例えばナトリウム塩、カリウム塩等)、アンモニウム塩、アルカノールアミン塩(例えばモノエタノールアミン塩、ジエタノールアミン塩、トリエタノールアミン塩等)などが挙げられる。   The fatty acid soap of the component (A) used in the present invention includes alkali metal salts (e.g., sodium salts, potassium salts, etc.), ammonium salts, alkanolamine salts (e.g., monoethanolamine) of saturated or unsaturated fatty acids having 8 to 22 carbon atoms. Salts, diethanolamine salts, triethanolamine salts, etc.).

成分(A)の脂肪酸石鹸は、不溶分が全脂肪酸石鹸中20重量%以下であることが必要であり、好ましくは15重量%以下である。不溶分が20重量%を超えると、枠練り法で製造できる石鹸組成物中の石鹸量が限られてしまうため、泡立ち性能が悪くなる。
なお、脂肪酸石鹸中の不溶分とは、クラフト点が60℃以上であって、実使用条件下で水に不溶の脂肪酸石鹸成分を意味する。具体的には、パルミチン酸、ステアリン酸等の、炭素数16以上の飽和脂肪酸塩に相当する。
The fatty acid soap of the component (A) needs to have an insoluble content of 20% by weight or less in the total fatty acid soap, and preferably 15% by weight or less. If the insoluble content exceeds 20% by weight, the amount of soap in the soap composition that can be produced by the frame kneading method is limited, and the foaming performance deteriorates.
In addition, the insoluble component in the fatty acid soap means a fatty acid soap component having a Kraft point of 60 ° C. or higher and being insoluble in water under actual use conditions. Specifically, it corresponds to a saturated fatty acid salt having 16 or more carbon atoms, such as palmitic acid and stearic acid.

また、成分(A)の脂肪酸石鹸において、飽和脂肪酸石鹸の割合が少ないと固化しにくくなるので、成分(A)の脂肪酸石鹸のうち、少なくとも80重量%はカプリル酸、カプリン酸、ラウリン酸、ミリスチン酸等の飽和脂肪酸のアルカリ金属塩、特にナトリウム塩であるのが好ましい。さらに、成分(A)の脂肪酸石鹸全体の中で、少なくとも25重量%がラウリン酸石鹸であるのが、泡立ち性により優れるので好ましい。   Further, in the fatty acid soap of the component (A), if the ratio of the saturated fatty acid soap is small, it is difficult to solidify. Therefore, at least 80% by weight of the fatty acid soap of the component (A) is caprylic acid, capric acid, lauric acid, myristine. Preference is given to the alkali metal salts of saturated fatty acids such as acids, especially the sodium salts. Further, it is preferable that at least 25% by weight of the fatty acid soap of the component (A) is lauric acid soap, since the foaming property is excellent.

成分(A)の脂肪酸石鹸を構成する脂肪酸としては、植物油脂もしくは動物油脂(例えば、パーム油、パーム核油、ヤシ油、ヒマシ油、大豆油、綿実油、ナタネ油、ヒマワリ油、牛脂、豚脂等)から得られるものが挙げられる。中でも、パーム核油又はヤシ油から得られる脂肪酸が好ましい。   Fatty acids constituting the fatty acid soap of the component (A) include vegetable oils or animal oils (for example, palm oil, palm kernel oil, coconut oil, castor oil, soybean oil, cottonseed oil, rapeseed oil, sunflower oil, beef tallow, lard oil) And the like). Among them, fatty acids obtained from palm kernel oil or coconut oil are preferred.

なお、成分(A)の脂肪酸石鹸は、上記の油脂を直接鹸化することにより、あるいは別途調製された脂肪酸の中和によって製造することができる。   In addition, the fatty acid soap of the component (A) can be produced by directly saponifying the above fat or oil or by neutralizing a separately prepared fatty acid.

成分(A)は、1種以上を用いることができ、全組成中に25〜60重量%、好ましくは30〜50重量%含有される。25重量%未満では、十分な硬度や泡立ちが得られず、60重量%を超えると、脂肪酸組成によってはニートソープの粘度が高すぎて生産性が悪くなることがある。   One or more types of component (A) can be used, and are contained in the entire composition in an amount of 25 to 60% by weight, preferably 30 to 50% by weight. If it is less than 25% by weight, sufficient hardness and foaming cannot be obtained, and if it exceeds 60% by weight, depending on the fatty acid composition, the viscosity of the neat soap may be too high, resulting in poor productivity.

成分(B)の塩化ナトリウムは、全組成中に0.1〜5重量%、好ましくは1〜4重量%含有される。0.1重量%未満では、十分な硬度が得られず、5重量%を超えると、ニートソープが分離してしまう。   The component (B) contains 0.1 to 5% by weight, preferably 1 to 4% by weight of sodium chloride in the whole composition. If it is less than 0.1% by weight, sufficient hardness cannot be obtained, and if it exceeds 5% by weight, neat soap is separated.

成分(C)の硫酸ナトリウムは、全組成中に0.1〜5重量%、好ましくは0.5〜4重量%含有される。0.1重量%未満では、十分な硬度が得られず、5重量%を超えると、ニートソープの粘度が高すぎて生産性が悪くなったり、長期保存で石鹸表面に結晶が析出するため、外観上好ましくない。   The component (C) contains 0.1 to 5% by weight, preferably 0.5 to 4% by weight of sodium sulfate in the whole composition. If it is less than 0.1% by weight, sufficient hardness cannot be obtained, and if it exceeds 5% by weight, the viscosity of the neat soap is too high to lower the productivity, or crystals are precipitated on the soap surface during long-term storage. Not desirable in appearance.

また、成分(B)及び(C)の重量割合は、(B):(C)=1:50〜40:1、特に1:4〜6:1であるのが、ニートソープの粘度が低く、高い硬度の石鹸が得られるので好ましい。さらに、成分(B)及び(C)の含有量の合計は、1〜10重量%、特に1.5〜8重量%、更に2〜7重量%、就中2.5〜6重量%であるのが、高い硬度が得られるとともに、泡立ちも良好であるので好ましい。   The weight ratio of the components (B) and (C) is (B) :( C) = 1: 50 to 40: 1, particularly 1: 4 to 6: 1, but the viscosity of the neat soap is low. It is preferable because a soap of high hardness can be obtained. Furthermore, the sum of the contents of components (B) and (C) is 1 to 10% by weight, in particular 1.5 to 8% by weight, more preferably 2 to 7% by weight, especially 2.5 to 6% by weight. This is preferable because high hardness is obtained and foaming is also good.

本発明で用いる成分(D)のポリオールとしては、例えばグリセリン、ソルビトール、キシリトール、マンニトール、グルコース、ポリエチレングリコール、ポリプロピレングリコール、水溶性多糖類等が挙げられる。ポリエチレングリコール、ポリプロピレングリコールの分子量は8000以下であるのが好ましく、水溶性多糖類としては、ショ糖、トレハロース等が挙げられる。   Examples of the polyol of the component (D) used in the present invention include glycerin, sorbitol, xylitol, mannitol, glucose, polyethylene glycol, polypropylene glycol, and water-soluble polysaccharide. The molecular weight of polyethylene glycol or polypropylene glycol is preferably 8000 or less, and examples of the water-soluble polysaccharide include sucrose, trehalose and the like.

これらのポリオールは、1種以上を用いることができ、全組成中に5〜30重量%、好ましくは10〜25重量%含有される。5重量%未満では、十分な硬度が得られず、30重量%を超えるとニートソープの粘度が高すぎて生産性が悪くなる。   One or more of these polyols can be used, and they are contained in the entire composition in an amount of 5 to 30% by weight, preferably 10 to 25% by weight. If it is less than 5% by weight, sufficient hardness cannot be obtained, and if it exceeds 30% by weight, the viscosity of the neat soap is too high, and the productivity deteriorates.

本発明の枠練り石鹸組成物には、更に遊離脂肪酸を含有させることができ、よりマイルドで、優れた泡立ちを得ることができる。このような遊離脂肪酸としては、前記成分(A)に対応する脂肪酸が好ましく、例えば、パーム核油脂肪酸、ヤシ油脂肪酸、硬化ヤシ油脂肪酸等が挙げられる。遊離脂肪酸は、1種以上を用いることができ、全組成中に0.2〜9重量%、特に0.5〜5重量%含有するのが好ましい。かかる遊離脂肪酸は、配合成分の一つとして加えてもよいし、脂肪酸石鹸の製造時の中和度を調整することにより組成物中に存在させてもよい。   The framed soap composition of the present invention can further contain a free fatty acid, so that milder and better foaming can be obtained. Such free fatty acids are preferably fatty acids corresponding to the component (A), and include, for example, palm kernel oil fatty acids, coconut oil fatty acids, and hydrogenated coconut oil fatty acids. One or more free fatty acids can be used, and it is preferable that the content be 0.2 to 9% by weight, particularly 0.5 to 5% by weight in the total composition. Such a free fatty acid may be added as one of the components, or may be present in the composition by adjusting the degree of neutralization during the production of the fatty acid soap.

中和された脂肪酸石鹸と遊離脂肪酸との重量比は、99:1〜85:15、特に98:2〜90:10の範囲であるのが、肌感触が改善されるとともに、柔らかくなりすぎないので好ましい。   The weight ratio of the neutralized fatty acid soap to the free fatty acid is in the range of 99: 1 to 85:15, particularly 98: 2 to 90:10, while the skin feel is improved and the softness is not too soft. It is preferred.

本発明の枠練り石鹸組成物には、溶融したニートソープをホイップしてエアレーション処理した場合に、型枠に流し込んだホイップ組成物が破泡して液相が分離しないようにするため、更に、ヒドロキシ酸エステル系界面活性剤、モノグリセライド系界面活性剤、ショ糖エステル系界面活性剤、乳酸エステル系界面活性を添加することができる。中でも、乳酸エステル系界面活性剤を添加することが好ましい。これらのエステル系界面活性剤は、全組成中に1〜10重量%、特に2〜5重量%含有するのが好ましい。   In the frame kneaded soap composition of the present invention, when the melted neat soap is whipped and aerated, in order to prevent the liquid phase from separating due to the foaming of the whipped composition poured into the mold, further, Hydroxy acid ester surfactants, monoglyceride surfactants, sucrose ester surfactants, and lactate ester surfactants can be added. Especially, it is preferable to add a lactic acid ester surfactant. These ester-based surfactants are preferably contained in the entire composition in an amount of 1 to 10% by weight, particularly 2 to 5% by weight.

また、低温での泡立ち性やスカムの分散性を向上させるために、非石鹸系のアニオン界面活性剤を添加することもできる。このようなアニオン界面活性剤としては、アルカノイルイセチオン酸塩、ポリオキシエチレンアルキルエーテル硫酸塩、アシルメチルタウリン塩、アシルザルコシネート、スルホサクシネート、モノアルキルリン酸塩、アルカノイル−β−アラニン塩等が挙げられる。これら非石鹸系のアニオン界面活性剤を用いる場合は、全組成中に1〜20重量%、特に5〜15重量%含有するのが好ましい。   Further, a non-soap-based anionic surfactant can be added in order to improve the foaming property and the scum dispersibility at low temperatures. Such anionic surfactants include alkanoyl isethionate, polyoxyethylene alkyl ether sulfate, acylmethyl taurate, acyl sarcosinate, sulfosuccinate, monoalkyl phosphate, alkanoyl-β-alanine salt And the like. When these non-soap-based anionic surfactants are used, they are preferably contained in the entire composition in an amount of 1 to 20% by weight, particularly 5 to 15% by weight.

更に、起泡力をより高める目的で、両性界面活性剤を用いることもできる。かかる両性界面活性剤としては、ベタイン型界面活性剤、アミノ酸型界面活性剤、イミダゾリン型界面活性剤、アミンオキサイド型界面活性剤等が挙げられる。これらのうち、ベタイン型界面活性剤、更にアルキルアミドプロピルベタイン、スルホベタインが好ましい。これら両性界面活性剤を用いる場合は、全組成中に0.1〜10重量%、更に1〜5重量%含有するのが好ましい。   Further, an amphoteric surfactant can be used for the purpose of further increasing the foaming power. Examples of such amphoteric surfactants include betaine surfactants, amino acid surfactants, imidazoline surfactants, and amine oxide surfactants. Among these, betaine-type surfactants, and further, alkylamidopropylbetaine and sulfobetaine are preferred. When these amphoteric surfactants are used, the content is preferably 0.1 to 10% by weight, more preferably 1 to 5% by weight in the whole composition.

本発明の枠練り石鹸組成物には、香りの安定化のために脂肪酸以外の有機酸類を含有させることができる。このような有機酸としては、乳酸、グルコン酸等が挙げられる。これら有機酸を用いる場合は、全組成中に0.01〜3重量%、特に0.1〜1重量%含有するのが好ましい。   The framed soap composition of the present invention can contain organic acids other than fatty acids to stabilize the scent. Such organic acids include lactic acid, gluconic acid and the like. When these organic acids are used, the content is preferably 0.01 to 3% by weight, particularly 0.1 to 1% by weight in the whole composition.

また、泡の滑りを高める目的で、高重合度ポリエチレングリコール(アルコックスE−100(明成化学工業社製、分子量250万)等)、カチオンポリマー、セルロース、ヒドロキシメチルセルロース、ヒドロキシエチルセルロース、ヒドロキシプロピルセルロース、カルボキシメチルセルロース、メチルセルロース等の高分子化合物を添加することもできる。これらのうち、高重合度ポリエチレングリコールが好ましく、全組成中に0.001〜5重量%、更に0.01〜1重量%含有するのが好ましい。   Further, for the purpose of increasing the slip of the foam, a high polymerization degree polyethylene glycol (Alcox E-100 (manufactured by Meisei Chemical Co., Ltd., molecular weight 2.5 million), etc.), a cationic polymer, cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, High molecular compounds such as carboxymethylcellulose and methylcellulose can also be added. Of these, polyethylene glycol having a high degree of polymerization is preferred, and the content is preferably 0.001 to 5% by weight, more preferably 0.01 to 1% by weight, based on the total composition.

前記成分のほか、本発明の枠練り石鹸組成物には、用いる成分を均一な溶融物とするために、水を含有する必要があり、製造時には、通常25〜50重量%の水を含有する。この水は、製造直後にはその中にほぼ同じ割合で含有されているが、乾燥に伴って徐々に減少する。そのような乾燥は、プラスティックフィルム又は金属ラミネートフィルムで包装する等、適切な包装や容器により防止することができる。   In addition to the above components, the framed soap composition of the present invention needs to contain water in order to make the components used a uniform melt, and usually contains 25 to 50% by weight of water during production. . This water is contained in the water in almost the same proportion immediately after production, but gradually decreases with drying. Such drying can be prevented by suitable packaging or containers, such as packaging with a plastic film or a metal laminate film.

また、本発明の枠練り石鹸組成物には、通常の洗浄剤組成物に用いられる公知の添加剤、例えば抗菌剤、香料、顔料、染料、油剤、その他の低刺激化剤等を含有できる。ここで、抗菌剤としては、トリクロサン、トリクロロカルバニリド等が挙げられ、通常0.1〜2重量%含有される。また、香料、顔料、染料等は、通常0.2〜5重量%含有される。油剤としては、ラノリン、パラフィン、ワセリン、ミリスチン酸イソプロピル等が挙げられ、通常0.5〜5重量%含有される。   Further, the framed soap composition of the present invention can contain known additives used in ordinary detergent compositions, for example, antibacterial agents, fragrances, pigments, dyes, oils, other stimulants, and the like. Here, examples of the antibacterial agent include triclosan, trichlorocarbanilide and the like, which are usually contained in an amount of 0.1 to 2% by weight. In addition, flavors, pigments, dyes and the like are usually contained in an amount of 0.2 to 5% by weight. Examples of the oil include lanolin, paraffin, petrolatum, isopropyl myristate, and the like, and usually 0.5 to 5% by weight.

本発明の枠練り石鹸組成物は、通常の方法により製造することができる。例えば、成分(A)〜(D)及び水を、必要に応じて他の成分も加えて、65〜90℃に加熱攪拌して溶融又は溶解させてニートソープとし、これをそのまま型枠に流し込み、冷却して固化、乾燥することにより製造される。   The framed soap composition of the present invention can be produced by a usual method. For example, the components (A) to (D) and water, together with other components as necessary, are heated and stirred at 65 to 90 ° C. to be melted or dissolved to form a neat soap, which is poured into a mold as it is. It is manufactured by cooling, solidifying and drying.

気泡を含有させて軽量石鹸(浮き石鹸)とする場合には、得られたニートソープに、家庭用又は工業用のホイップ装置でエアレーション処理を施して気泡を含有させる。このようにホイップしてエアレーション処理することにより、ニートソープの固化速度をより早くすることができる。従って、このホイップ状態のニートソープ(発泡ニート)を型枠に流し込むと、分相することなくそのまま固化させることができる。また、気泡を含ませることにより、得られる枠練り石鹸組成物は、気泡により水の浸入が防止されるため、ふやけにくくなる。   When a light soap (floating soap) is contained by containing air bubbles, the obtained neat soap is subjected to an aeration treatment with a home or industrial whip device to contain the air bubbles. By performing the aeration treatment by whipping as described above, the solidifying speed of the neat soap can be further increased. Therefore, when this neat soap (foamed neat) in a whipped state is poured into a mold, it can be solidified without phase separation. In addition, by including bubbles, the resulting framed soap composition is prevented from infiltrating water due to the bubbles, so that the soap composition is less likely to be swollen.

気泡の容量分率は、枠練り石鹸組成物の固化速度、硬さあるいは溶け易さ等を考慮すると、10%以上、特に30%以上であるのが好ましい。なお、得られる組成物の強度の観点から、気泡の容量分率は80%以下が好ましい。気泡の容積分率は、容積100mLの容器に発泡ニートを流し込み、その組成物の重量W(g)を測定して、100−Wにより算出する。   The volume fraction of air bubbles is preferably at least 10%, particularly preferably at least 30%, in consideration of the solidification rate, hardness, and ease of dissolution of the framed soap composition. From the viewpoint of the strength of the obtained composition, the volume fraction of bubbles is preferably 80% or less. The volume fraction of bubbles is calculated by 100-W by pouring foaming neat into a container having a volume of 100 mL, measuring the weight W (g) of the composition.

また、気泡の大きさは、得られる枠練り石鹸組成物を溶け過ぎないようにし、且つよりふやけにくくするために、平均気泡径が80μm以下、更に60μm以下であるのが好ましい。平均気泡径の下限については特に限定されないが、通常の工業用のホイップ機を使用する場合、生産性を考慮すると、10μm以上、更に15μm以上であるのが好ましい。ここで、平均気泡径は、発泡ニートを二枚のスライドグラス(間隔150〜180μm)の間に挟んで急冷固化させ、得られた試料にバックライトで透過光を与えながらマイクロスコープで観察して画像データを採取した後、画像処理ソフト Image-Pro Plus 上で気泡径の測定を行い、平均値を算出することにより求める。
なお、エアレーション処理の際に使用する気体としては、空気、窒素ガス等を適宜選択して用いることができる。
The size of the bubbles is preferably 80 μm or less, more preferably 60 μm or less, in order to prevent the obtained framed soap composition from being excessively melted and to make it more difficult to be swollen. Although the lower limit of the average bubble diameter is not particularly limited, it is preferably at least 10 μm, more preferably at least 15 μm, in consideration of productivity when a normal industrial whip machine is used. Here, the average cell diameter is determined by quenching and solidifying the foamed neat between two slide glasses (interval of 150 to 180 μm), and observing the obtained sample with a microscope while transmitting light with a backlight. After collecting the image data, measure the bubble diameter on the image processing software Image-Pro Plus and calculate the average value.
In addition, as a gas used in the aeration treatment, air, nitrogen gas, or the like can be appropriately selected and used.

固形石鹸として得られた枠練り石鹸組成物が気泡を含有することは、以下の方法により確認することができる。
(1)固形製品の比重を測定する。比重が1以下であれば、気泡が入っている。
(2)固形製品をカミソリで薄く切り出し、光学顕微鏡で観察する。丸い気泡の存在が確認される。
The fact that the framed soap composition obtained as a solid soap contains bubbles can be confirmed by the following method.
(1) Measure the specific gravity of the solid product. If the specific gravity is 1 or less, bubbles are contained.
(2) A solid product is cut thinly with a razor and observed with an optical microscope. The presence of round bubbles is confirmed.

実施例1〜7、比較例1〜10
表1に示す組成の枠練り石鹸組成物を製造し、製造性、硬さ及び泡立ちを評価した。結果を表1に併せて示す。なお、実施例で用いた混合脂肪酸石鹸の脂肪酸組成は、表2に示すとおりである。
Examples 1 to 7, Comparative Examples 1 to 10
A framed soap composition having the composition shown in Table 1 was produced and evaluated for productivity, hardness and foaming. The results are shown in Table 1. The fatty acid composition of the mixed fatty acid soap used in the examples is as shown in Table 2.

(製法)
70〜80℃にて、全成分を溶融し、水分が蒸発しないように注意しながらハンドミキサーを用いてホイップし、気泡入りニートを作成した。これを、100mLのプラスチック製の型に流し込み、室温で放冷固化して、枠練り石鹸組成物を得た。得られた枠練り石鹸組成物は、いずれも気泡を含有するものであった。
(Production method)
At 70 to 80 ° C., all the components were melted and whipped using a hand mixer, while taking care not to evaporate the water, to produce a neat with bubbles. This was poured into a 100 mL plastic mold and allowed to cool and solidify at room temperature to obtain a framed soap composition. All of the obtained framed soap compositions contained air bubbles.

(評価方法)
(1)製造性:
70〜80℃の温水浴で保温されたステンレスビーカー中で、ニートソープ400mLを攪拌羽根により攪拌し、100mLのプラスチック製の型4個に流し込む作業を行ったときの作業性を、以下の基準で評価した。
○:ニート粘度が適当で、作業し易い。
△:ニート粘度が高い、又は固化が遅い。
×:ニート粘度が非常に高い、又は固化が非常に遅い。
(Evaluation method)
(1) Manufacturability:
In a stainless steel beaker kept in a warm water bath at 70 to 80 ° C., 400 mL of neat soap was stirred by a stirring blade and poured into four 100 mL plastic molds. evaluated.
:: Neat viscosity is appropriate and work is easy.
Δ: High neat viscosity or slow solidification.
X: The neat viscosity is very high or the solidification is very slow.

(2)硬さ:
上記プラスチック製の型に流し込んだニートソープを、室温で放冷固化したものについて、レオメーター(不動工業社製、直径10mmのアダプターを装着)で硬度(単位:kgf/10mmΦ)を測定した。なお、硬度の測定上限は10、下限は0であり、4.5以上が好ましい。
(2) Hardness:
The hardness (unit: kgf / 10 mmΦ) of the neat soap poured into the plastic mold and allowed to cool and solidify at room temperature was measured with a rheometer (manufactured by Fudo Kogyo Co., Ltd., equipped with a 10 mm diameter adapter). The upper limit of the hardness measurement is 10 and the lower limit is 0, preferably 4.5 or more.

(3)泡立ち:
専門パネラーが40℃の温水を用いた手洗いにより、以下の基準で評価した。
○:よく泡立つ。
△:少し泡立つ。
×:泡立ちが悪い。
(3) Foaming:
The evaluation was carried out by a specialized panel by hand washing using warm water of 40 ° C. according to the following criteria.
:: foaming well.
Δ: Slight foaming.
X: Foaming is poor.

Figure 2004256805
Figure 2004256805

Figure 2004256805
Figure 2004256805

実施例8
実施例1〜7と同様にして、下記の組成の枠練り石鹸組成物を製造した。
得られた枠練り石鹸組成物は、固化が速く、硬度が高いものであり、泡立ちも良好である。
(成分)
パーム核油脂肪酸ナトリウム 40.12(重量%)
ミリスチン酸ナトリウム 3.13
塩化ナトリウム 1.97
硫酸ナトリウム 2.96
ソルビトール 20.31
アミドプロピルベタイン(アンヒトール20AB、花王社製) 1.61
スルホベタイン(アンヒトール20HD、花王社製) 1.61
高重合度ポリエチレングリコール
(アルコックスE-100、明成化学工業社製) 0.02
BHT 0.08
ヒドロキシエタンジホスホン酸
(デイクエスト2010CS、ソルーシア・ジャパン社製) 0.24
香料 1.20
水 26.75
(全脂肪酸石鹸中の不溶分:12重量%、遊離脂肪酸2.5重量%)
Example 8
In the same manner as in Examples 1 to 7, a framed soap composition having the following composition was produced.
The obtained framed soap composition has fast solidification, high hardness, and good foaming.
(component)
Palm kernel oil fatty acid sodium 40.12 (% by weight)
Sodium myristate 3.13
Sodium chloride 1.97
Sodium sulfate 2.96
Sorbitol 20.31
Amidopropyl betaine (Amphitol 20AB, manufactured by Kao Corporation) 1.61
Sulfobetaine (Amphitol 20HD, manufactured by Kao Corporation) 1.61
High polymerization degree polyethylene glycol (Alcox E-100, manufactured by Meisei Chemical Industry Co., Ltd.) 0.02
BHT 0.08
Hydroxyethanediphosphonic acid (Dequest 2010CS, manufactured by Sorcia Japan) 0.24
Perfume 1.20
Water 26.75
(Insoluble content in total fatty acid soap: 12% by weight, free fatty acid 2.5% by weight)

Claims (7)

次の成分(A)〜(D):
(A)不溶分が20重量%以下である脂肪酸石鹸 25〜60重量%、
(B)塩化ナトリウム 0.1〜5重量%、
(C)硫酸ナトリウム 0.1〜5重量%、
(D)ポリオール 5〜30重量%
及び水を含有する枠練り石鹸組成物。
The following components (A) to (D):
(A) 25 to 60% by weight of a fatty acid soap having an insoluble content of 20% by weight or less,
(B) 0.1-5% by weight of sodium chloride,
(C) 0.1 to 5% by weight of sodium sulfate,
(D) 5 to 30% by weight of polyol
And a water-containing framed soap composition.
成分(A)の脂肪酸石鹸の少なくとも80重量%が飽和脂肪酸のアルカリ金属塩である請求項1記載の枠練り石鹸組成物。   2. The framed soap composition according to claim 1, wherein at least 80% by weight of the fatty acid soap of the component (A) is an alkali metal salt of a saturated fatty acid. 成分(A)の脂肪酸石鹸の少なくとも25重量%がラウリン酸石鹸である請求項1又は2記載の枠練り石鹸組成物。   3. The framed soap composition according to claim 1, wherein at least 25% by weight of the fatty acid soap of the component (A) is lauric acid soap. 成分(A)の脂肪酸石鹸を構成する脂肪酸が、パーム核油又はヤシ油由来のものである請求項1〜3のいずれか1項記載の枠練り石鹸組成物。   The fatty acid constituting the fatty acid soap of the component (A) is derived from palm kernel oil or coconut oil, and the framed soap composition according to any one of claims 1 to 3. 成分(D)のポリオールが、グリセリン、ソルビトール、キシリトール、マンニトール、グルコース、ポリエチレングリコール、ポリプロピレングリコール及び水溶性多糖類から選ばれるものである請求項1〜4のいずれか1項記載の枠練り石鹸組成物。   The framed soap composition according to any one of claims 1 to 4, wherein the polyol of the component (D) is selected from glycerin, sorbitol, xylitol, mannitol, glucose, polyethylene glycol, polypropylene glycol, and a water-soluble polysaccharide. object. 気泡を含有するものである請求項1〜5のいずれか1項記載の枠練り石鹸組成物。   The frame-kneaded soap composition according to any one of claims 1 to 5, which contains air bubbles. 更に、遊離脂肪酸を0.2〜9重量%含有する請求項1〜6のいずれか1項記載の枠練り石鹸組成物。   7. The framed soap composition according to claim 1, further comprising 0.2 to 9% by weight of a free fatty acid.
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JP2005314493A (en) * 2004-04-27 2005-11-10 Kao Corp Method for producing soap composition
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US9884005B2 (en) 2011-06-23 2018-02-06 Cosmetic Warriors Limited Aerated solid cosmetic composition
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JP2016113489A (en) * 2014-12-11 2016-06-23 花王株式会社 Solid soap
JP2017179614A (en) * 2016-03-28 2017-10-05 日本製紙株式会社 Deinking method for uv printed matter
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