JP5282859B2 - Cleaning composition for baby bottle - Google Patents
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Abstract
Description
哺乳瓶用の洗浄剤組成物に関する。 The present invention relates to a cleaning composition for baby bottles.
哺乳瓶の洗浄剤組成物としては、優れた殺菌性ないし抗菌性と洗浄力を有し、人体や環境に対する安全性が高く、特に農産物や乳幼児用の哺乳瓶の洗浄において有効な洗浄剤組成物として、（ａ）モノグリセリン脂肪酸エステル、ポリグリセリン脂肪酸エステル、ソルビタン脂肪酸エステル、ショ糖脂肪酸エステル及びプロピレングリコール脂肪酸エステルから選ばれる１種以上の界面活性剤、（ｂ）ポリリジン並びに（ｃ）リン酸塩、メタリン酸塩、ピロリン酸塩及びトリポリリン酸塩から選ばれる１種以上のリン含有化合物を含有する洗浄剤組成物が開示されている（特許文献１ 参照。）。 As a cleaning composition for baby bottles, it has excellent bactericidal or antibacterial properties and detergency, and is highly safe for the human body and the environment, and is particularly effective in cleaning baby bottles for agricultural products and infants. (A) at least one surfactant selected from monoglycerin fatty acid ester, polyglycerin fatty acid ester, sorbitan fatty acid ester, sucrose fatty acid ester and propylene glycol fatty acid ester, (b) polylysine and (c) phosphate , A detergent composition containing at least one phosphorus-containing compound selected from metaphosphate, pyrophosphate and tripolyphosphate is disclosed (see Patent Document 1).
また、粉ミルクの残さの洗浄力、泡立ち性、すすぎ性、及び低温安定性に優れ、かつ、汎用の安価な界面活性剤を組み合わせ、全体としての含有量が少ないにもかかわらず、上記各種性能を満足することのできる、コスト的にも安価な、従って、経済的に有利な哺乳ビン用液体洗浄剤組成物として、（Ａ）アニオン界面活性剤３〜１０質量％と、（Ｂ）高級脂肪酸ジエタノールアミド３〜１２質量％と、（Ｃ）両性界面活性剤０．１〜５質量％とを含有することを特徴とする哺乳ビン用液体洗浄剤組成物が開示されている（特許文献２ 参照。）。 In addition, it is excellent in detergency, foaming, rinsing, and low-temperature stability of the residue of powdered milk. As a liquid detergent composition for baby bottles that can be satisfied and that is inexpensive and thus economically advantageous, (A) 3 to 10% by weight of an anionic surfactant and (B) a higher fatty acid diethanolamine A liquid detergent composition for baby bottles containing 3 to 12% by mass of a resin and (C) 0.1 to 5% by mass of an amphoteric surfactant is disclosed (see Patent Document 2). ).
これらの哺乳瓶用洗浄剤は、陰イオン界面活性剤や非イオン界面活性剤と可溶化剤等の混合物であり、洗浄の際の汚れ落ちや安全性について種々の改善がなされているが、洗浄力が必ずしも充分でなく、一般に、哺乳瓶などに付着した汚れを落とすには、ブラシなどを併用して洗わなくてはならず、また哺乳瓶先端部分の樹脂製乳首の内側や、哺乳瓶底部などは特に洗浄しにくいという問題があった。 These baby bottle cleaning agents are a mixture of anionic surfactants, nonionic surfactants and solubilizers, and various improvements have been made in terms of soil removal and safety during cleaning. The force is not always sufficient, and in general, in order to remove dirt attached to a baby bottle, it must be washed with a brush, etc., and the inside of the resin nipple at the tip of the baby bottle and the bottom of the baby bottle In particular, there was a problem that it was difficult to clean.
また、公知の洗浄剤は、洗浄後、濯ぎ洗いのみでなく、ジクロロイソシアヌル酸塩や次亜塩素酸ナトリウム液などの塩素系化合物を使用して除菌する必要があり、哺乳瓶の洗浄は大変煩雑である。一種類の洗浄剤により除菌、洗浄を同時に行うことができれば、作業が著しく簡素化されることになる。
ジクロロイソシアヌル酸塩を水に溶かした液の性能面における長所は、各種細菌類に対する除菌力が確実なことである。その反面、欠点としては反応性が著しいため、保存安定性が低いとともに、各種金属や樹脂に対する腐食性が激しく、各種金属や樹脂が多く存在する条件での除菌には利用しにくい点が挙げられる。また、水溶液濃度を高くした場合に、強い刺激臭を発生するといった使用場面における環境面での欠点も挙げられる。よって、保存安定性が高いとともに、腐食抑制能力を確保すること、及び水溶液濃度を高くしても刺激臭を発生しないことが、実用化のための必須条件である。 The advantage of the performance of a solution obtained by dissolving dichloroisocyanurate in water is that it has a certain sterilizing power against various bacteria. On the other hand, the disadvantage is that the reactivity is remarkable, so the storage stability is low, the corrosiveness to various metals and resins is severe, and it is difficult to use for sterilization under the condition that there are many various metals and resins. It is done. In addition, when the concentration of the aqueous solution is increased, there is also an environmental disadvantage in use scenes such that a strong irritating odor is generated. Therefore, it is an indispensable condition for practical use that the storage stability is high, that the corrosion-inhibiting ability is ensured, and that no irritating odor is generated even when the concentration of the aqueous solution is increased.
本発明は、上記従来技術の課題及び現状等に鑑み、これを解消しようとするものであり、漬け置き型で洗浄と除菌が同時に行えるとともに、保存安定性に優れ、水溶液にして使用した場合に各種金属や樹脂に対する腐食性が低く、しかも高濃度水溶液にしても刺激臭を発生しない哺乳瓶用洗浄剤組成物を提供することを目的とする。 The present invention is to solve this problem in view of the above-described problems of the prior art and the current situation, and can be washed and sterilized at the same time in a soaking type, and has excellent storage stability when used as an aqueous solution. Another object of the present invention is to provide a cleaning composition for baby bottles that has low corrosiveness to various metals and resins and that does not generate an irritating odor even in a high concentration aqueous solution.
本発明は、硫酸ナトリウム、炭酸ナトリウム及びクエン酸ナトリウムからなる群から選ばれる少なくとも二種の化合物と、粒子表面のみを低水和化処理したメタケイ酸ナトリウム五水和物と、ジクロロイソシアヌル酸塩とからなる、哺乳瓶用洗浄剤組成物、
但し、該ジクロロイソシアヌル酸塩１００質量部に対して、該メタケイ酸ナトリウム五水和物の配合量が、１５０質量部以上、かつ、６００質量部以下であり、
該組成物中の該ジクロロイソシアヌル酸塩の配合量が、０．５〜３０質量％であり、
該組成物の１質量％水溶液のｐＨが１１、００以上、かつ、１１．９６以下であり、
該メタケイ酸ナトリウム五水和物が−０．０１〜−１．００質量％の付着水分量測定値を有するものであり、
該付着水分量測定値は、アルミナ坩堝を用いて８００℃、２時間強熱乾燥した後、次式（式１）によって算出される付着水分量（水和物水分量）である：
付着水分量（％）＝[１−Ａ×（Ｗ３−Ｗ１）／（Ｗ２−Ｗ１）]×１００ （式１）
上記式１の記号については、下記の通りに定める、
Ａ：１．７３７７（係数） ［＝２１２（分子質量 Ｎａ 2 Ｏ・ＳｉＯ 2 ・５Ｈ 2 Ｏ）／１
２２（分子質量 Ｎａ 2 Ｏ・ＳｉＯ 2 ）］
Ｗ１：坩堝質量（ｇ）
Ｗ２：強熱乾燥前のＷ１と試料精秤量との合計質量（ｇ）
Ｗ３：強熱乾燥後のＷ１と試料精秤量との合計質量（ｇ）、
の組成物に関する。
The present invention includes at least two compounds selected from the group consisting of sodium sulfate, sodium carbonate and sodium citrate, sodium metasilicate pentahydrate obtained by subjecting only the particle surface to a low hydration treatment, dichloroisocyanurate, A cleaning composition for baby bottles,
However, with respect to 100 parts by mass of the dichloroisocyanurate, the amount of sodium metasilicate pentahydrate is 150 parts by mass or more and 600 parts by mass or less,
The blending amount of the dichloroisocyanurate in the composition is 0.5 to 30% by mass,
The pH of a 1% by weight aqueous solution of the composition is 11:00 or more and 11.96 or less,
The sodium metasilicate pentahydrate has a measured water content of -0.01 to -1.00 mass%,
The measured value of the amount of adhering water is the amount of adhering water (hydrated amount of water) calculated by the following equation (Equation 1) after drying at 800 ° C. for 2 hours using an alumina crucible:
Adhering moisture amount (%) = [1-A × (W3-W1) / (W2-W1)] × 100 (Formula 1)
The symbol of formula 1 above is determined as follows:
A: 1.7377 (coefficient) [= 212 (molecular weight Na 2 O · SiO 2 · 5H 2 O) / 1
22 (Molecular mass Na 2 O · SiO 2 )]
W1: crucible mass (g)
W2: Total mass (g) of W1 and the sample weighed before ignition drying
W3: Total mass (g) of W1 after ignition drying and a sample precision weight,
Of the composition.
本発明の組成物は、優れた洗浄力を発揮するとともに、水に溶かして使用した場合の各種金属や樹脂に対する腐食性及び刺激臭の発生が極めて少なく、保存安定性に優れている。 The composition of the present invention exhibits excellent detergency, and is extremely low in corrosiveness and generation of irritating odors to various metals and resins when used dissolved in water, and is excellent in storage stability.
ジクロロイソシアヌル酸塩を水に溶かした液の除菌力については、十分な効果があることは知られている。しかし金属腐食性及び高濃度水溶液からの刺激臭の発生については、これまで十分な対策がなかったことから、利用できる範囲が限定されていた。本発明により、従来の常識は変更されることになり、ジクロロイソシアヌル酸塩の殺菌力を高濃度水溶液のかたちでも、幅広く有効に利用できることになった。 It is known that the sterilizing power of a solution obtained by dissolving dichloroisocyanurate in water has a sufficient effect. However, with respect to the generation of irritating odors from metal corrosive and high-concentration aqueous solutions, there has been no sufficient countermeasures so far, so the range that can be used has been limited. According to the present invention, the conventional common sense is changed, and the bactericidal power of dichloroisocyanurate can be widely and effectively used even in the form of a high-concentration aqueous solution.
本発明について、以下に説明する。 The present invention will be described below.
ジクロロイソシアヌル酸塩を水に溶かして使用した場合の金属防錆及び、高濃度水溶液からの刺激臭発生防止を目的として、組成物中に必須成分として、ジクロロイソシアヌル酸塩と粒子表面のみを低水和化処理したメタケイ酸ナトリウム五水和物（メタケイ酸ナトリウム５Ｈ2Ｏ：Ｎａ2Ｏ・ＳｉＯ2・５Ｈ2Ｏ）とを必須成分として含有させる。 For the purpose of preventing metal rust when dichloroisocyanurate is dissolved in water and preventing the generation of irritating odors from high-concentration aqueous solutions, only dichloroisocyanurate and the particle surface are low water as essential components in the composition. sodium metasilicate was divided treated pentahydrate (sodium metasilicate 5H 2 O: Na 2 O · SiO 2 · 5H 2 O) and a is contained as an essential component.
ここで、従来のメタケイ酸ナトリウム五水和物と粒子表面のみを低水和化処理したメタケイ酸ナトリウム五水和物とは、下記の付着水分量の測定方法により識別することができる。 Here, the conventional sodium metasilicate pentahydrate and the sodium metasilicate pentahydrate obtained by subjecting only the particle surface to a low hydration treatment can be distinguished by the following method for measuring the amount of adhered water.
付着水分量の測定方法は、日本薬局方一般試験法強熱減量試験法を参考にして、アルミナ坩堝を用いて８００℃、２時間強熱乾燥した後、次式（式１）によって付着水分量（水和物水分量）を算出する。 The method for measuring the amount of adhering water is as follows. Refer to the Japanese Pharmacopoeia General Test Method and the ignition loss test method. Calculate (hydrate water content).
付着水分量（％）＝[１−Ａ×（Ｗ３−Ｗ１）／（Ｗ２−Ｗ１）]×１００ （式１）
上記式１の記号については、下記の通りに定める。
Adhering moisture amount (%) = [1-A × (W3-W1) / (W2-W1)] × 100 (Formula 1)
The symbol of the above formula 1 is determined as follows.
Ａ：１．７３７７（係数） ［＝２１２（分子質量Ｎａ2Ｏ・ＳｉＯ2・５Ｈ2Ｏ）／１２２（分子質量Ｎａ2Ｏ・ＳｉＯ2）］
Ｗ１：坩堝質量（ｇ）
Ｗ２：強熱乾燥前のＷ１と試料精秤量との合計質量（ｇ）
Ｗ３：強熱乾燥後のＷ１と試料精秤量との合計質量（ｇ）
前記式１による、本発明に使用される粒子表面のみを低水和化処理したメタケイ酸ナトリウム五水和物の付着水分量測定値は、−０．０１〜−１．００質量％となる。
A: 1.7377 (coefficient) [= 212 (molecular mass Na 2 O.SiO 2 .5H 2 O) / 122 (molecular mass Na 2 O.SiO 2 )]
W1: crucible mass (g)
W2: Total mass (g) of W1 and the sample weighed before ignition drying
W3: Total mass (g) of W1 after ignitable drying and the exact sample weight
The measured value of the attached water content of sodium metasilicate pentahydrate in which only the particle surface used in the present invention according to the above-described formula 1 is subjected to a low hydration treatment is −0.01 to −1.00% by mass.
この−０．０１〜−１．００質量％は、低水和化処理によりメタケイ酸ナトリウム五水和物の粒子表面から水和物としての水が粒子表面から離脱した水分量比率に対応する。 This -0.01--1.00 mass% respond | corresponds to the moisture content ratio from which the water as a hydrate separated from the particle | grain surface of the sodium metasilicate pentahydrate from the particle | grain surface by the low hydration process.
メタケイ酸ナトリウム五水和物の粒子表面のみを低水和化処理する方法としては、流動層式乾燥、気流式乾燥などの通気流熱風乾燥方式による乾燥方法が採用される。 As a method for subjecting only the particle surface of sodium metasilicate pentahydrate to a low hydration treatment, a drying method using an aeration flow hot air drying method such as fluidized bed drying or airflow drying is employed.
本発明の好ましい形態について、説明する。 A preferred embodiment of the present invention will be described.
本発明で使用するジクロロイソシアヌル酸塩としては、例えばジクロロイソシアヌル酸のナトリウム塩、カリウム塩等が挙げられるが、好ましいものはジクロロイソシアヌル酸ナトリウムである。 Examples of the dichloroisocyanuric acid salt used in the present invention include sodium salt and potassium salt of dichloroisocyanuric acid, with sodium dichloroisocyanurate being preferred.
金属腐食抑制効果を確実にするとともに、高濃度水溶液からの刺激臭発生を防止するために、ジクロロイソシアヌル酸塩１００質量部に対して、粒子表面のみを低水和化処理したメタケイ酸ナトリウム五水和物の配合量を、１５０質量部以上にして、組成物の１質量％水溶液のｐＨを１１以上にする。また、メタケイ酸ナトリウム五水和物の配合量の上限としては、ジクロロイソシアヌル酸塩１００質量部に対して、２０００質量部である。 Sodium metasilicate pentahydrate in which only the particle surface is subjected to low hydration treatment with respect to 100 parts by mass of dichloroisocyanurate in order to ensure the metal corrosion inhibitory effect and prevent the generation of irritating odors from highly concentrated aqueous solutions. The blending amount of the Japanese product is 150 parts by mass or more, and the pH of the 1% by mass aqueous solution of the composition is 11 or more. Moreover, as an upper limit of the compounding quantity of sodium metasilicate pentahydrate, it is 2000 mass parts with respect to 100 mass parts of dichloro isocyanurate.
組成物の１質量％水溶液のｐＨを１１以上にすることにより、金属腐食抑制効果を確実にするとともに、高濃度水溶液からの刺激臭発生を防止する。 By making the pH of the 1% by mass aqueous solution of the composition 11 or more, the metal corrosion inhibiting effect is ensured and the generation of irritating odors from the high concentration aqueous solution is prevented.
組成物の保存安定性を高めるために、組成物中のジクロロイソシアヌル酸塩の配合量を０．５〜４０質量％又は３〜４０質量％にする。 In order to improve the storage stability of the composition, the blending amount of dichloroisocyanurate in the composition is 0.5 to 40% by mass or 3 to 40% by mass.
ジクロロイソシアヌル酸塩１００質量部に対して、粒子表面のみを低水和化処理したメタケイ酸ナトリウム五水和物の配合量を、１５０質量部以上にすることにより、鉄、ステンレス、銅、真鍮、アルミニウム等の金属表面に、ケイ酸陰イオンの特異吸着が起こり、生成された吸着膜が金属表面の保護膜となることによって、金属腐食因子のアタックを防止しているものと考える。これは金属と溶液界面の電気二重層の電位に関するものである。更に、粒子表面のみを低水和化処理したメタケイ酸ナトリウム五水和物中のアルカリ分が水溶液中でジクロロイソシアヌル酸塩の有効成分である次亜塩素酸をイオン化することにより、刺激臭の発生を抑制しているものと考える。また、ジクロロイソシアヌル酸塩とメタケイ酸ナトリウム五水和物を配合した組成物は、保存安定性が決して良くない為、比較的高い温度条件で保存された場合、急激にケーキング（固結）してしまう傾向が認められるが、粒子表面のみを低水和化処理したメタケイ酸ナトリウム五水和物を使用し、ジクロロイソシアヌル酸塩配合量を３〜４０質量％にすることにより、これを抑えることができる。粒子表面のみを低水和化処理したメタケイ酸ナトリウム五水和物は、市販品として容易に入手できる。 By adding 150 parts by mass or more of sodium metasilicate pentahydrate with a low hydration treatment only on the particle surface to 100 parts by mass of dichloroisocyanurate, iron, stainless steel, copper, brass, It is considered that specific adsorption of silicate anions occurs on a metal surface such as aluminum, and the produced adsorbed film serves as a protective film on the metal surface, thereby preventing attack of metal corrosion factors. This concerns the electric double layer potential at the metal / solution interface. In addition, the alkali content in sodium metasilicate pentahydrate, which is a hypohydrated treatment only on the particle surface, ionizes hypochlorous acid, which is an active ingredient of dichloroisocyanurate, in an aqueous solution. We think that we are suppressing. In addition, a composition containing dichloroisocyanurate and sodium metasilicate pentahydrate has a poor storage stability, so when stored at a relatively high temperature, it rapidly caking (consolidates). However, it is possible to suppress this by using sodium metasilicate pentahydrate with a low hydration treatment only on the particle surface and setting the dichloroisocyanurate content to 3 to 40% by mass. it can. Sodium metasilicate pentahydrate obtained by subjecting only the particle surface to a low hydration treatment can be easily obtained as a commercial product.
以下、実施例及び比較例を挙げて更に詳しく本発明を説明するが、本発明の技術的範囲はこれによって制限されるものではない。 EXAMPLES Hereinafter, although an Example and a comparative example are given and this invention is demonstrated in detail, the technical scope of this invention is not restrict | limited by this.
ここでは、メタケイ酸ナトリウム五水和物（未処理品）として、商品名「メタ珪酸ソーダ５水塩」（三宝化学工業株式会社製）を使用した。一方、粒子表面のみを低水和化処理したメタケイ酸ナトリウム五水和物（乾燥処理品）として、商品名「メタエース５(高流動性５水和物)」（三宝化学工業株式会社製）を使用した。前記の付着水分量の測定方法では、使用した「メタ珪酸ソーダ５水塩」（三宝化学工業株式会社製）の付着水分量は、１．０９質量％を示した。また、使用した「メタエース５(高流動性５水和物)」（三宝化学工業株式会社製）の付着水分量は、−０．５１質量％を示した。 Here, the trade name “Sodium Silicate Pentahydrate” (manufactured by Sanpo Chemical Industry Co., Ltd.) was used as sodium metasilicate pentahydrate (untreated product). On the other hand, the product name “Metaace 5 (high fluidity pentahydrate)” (manufactured by Sanpo Chemical Industry Co., Ltd.) is used as sodium metasilicate pentahydrate (dried product) that has been subjected to low hydration treatment only on the particle surface. used. In the method for measuring the amount of adhering moisture, the amount of adhering moisture of the used “sodium metasilicate pentahydrate” (manufactured by Sanpo Chemical Industry Co., Ltd.) was 1.09% by mass. Moreover, the amount of adhering water of “Metaace 5 (high fluidity pentahydrate)” (manufactured by Sanpo Chemical Industry Co., Ltd.) used was −0.51% by mass.
実施例１〜７及び比較例１〜２では、表１に示す配合の組成物を作成し、以下の評価を行った。 In Examples 1-7 and Comparative Examples 1-2, the composition of the mixing | blending shown in Table 1 was created, and the following evaluation was performed.
[金属腐食試験]
有効塩素濃度が１０００ｐｐｍになるように、表１に示す実施例１〜７及び比較例１〜２の組成物をそれぞれ蒸留水に溶解し、この溶解液をポリ容器に入れ、各種金属のテストピースを浸漬した状態で密閉し、４０℃、２４時間保存する。保存後の腐食度を測定し、腐食度の格付けを決定した。結果を表１に示す。
[Metal corrosion test]
Each of the compositions of Examples 1 to 7 and Comparative Examples 1 and 2 shown in Table 1 was dissolved in distilled water so that the effective chlorine concentration was 1000 ppm. Is immersed and stored at 40 ° C. for 24 hours. The degree of corrosion after storage was measured and the rating of the degree of corrosion was determined. The results are shown in Table 1.
腐食度：腐食によるテストピースの減少質量（ｍｄｄ：ｍｇ／ｄｍ2・ｄ）
腐食度は次の基準（格付け）で分類した。
Corrosion degree: Reduced mass of test piece due to corrosion (mdd: mg / dm 2 · d)
Corrosion degree was classified according to the following criteria (rating).
Ａ（優良）：０〜１０、Ｂ（可）１０〜５０、Ｃ（否）＞１００。 A (excellent): 0 to 10, B (possible) 10 to 50, C (no)> 100.
[１％水溶液のｐＨ測定]
表１に示す実施例１〜７及び比較例１〜２の組成物をそれぞれ蒸留水に溶解し、１％水溶液を作成後、ｐＨを測定した。結果を表１に示す。
[PH measurement of 1% aqueous solution]
The compositions of Examples 1 to 7 and Comparative Examples 1 and 2 shown in Table 1 were each dissolved in distilled water to prepare a 1% aqueous solution, and then the pH was measured. The results are shown in Table 1.
[刺激臭確認試験]
有効塩素濃度が１０００ｐｐｍになるように、表１に示す実施例１〜７及び比較例１〜２の組成物をそれぞれ蒸留水に溶解し、この溶解液をポリ容器に入れ、密閉した状態で温度４０℃にて、それぞれ２時間、４時間、６時間保存後の刺激臭発生量を塩素ガス検知管にて測定した。結果を表１に示す。
[Irritating odor confirmation test]
The compositions of Examples 1 to 7 and Comparative Examples 1 and 2 shown in Table 1 were each dissolved in distilled water so that the effective chlorine concentration was 1000 ppm, and this solution was placed in a plastic container and sealed in a temperature state. The amount of irritating odor generated after storage at 40 ° C. for 2 hours, 4 hours and 6 hours was measured with a chlorine gas detector tube. The results are shown in Table 1.
参考例８〜９及び比較例３〜４では、表２に示す配合の組成物を作成し、以下の評価を行った。
In Reference Examples 8 to 9 and Comparative Examples 3 to 4, compositions having the formulations shown in Table 2 were prepared and evaluated as follows.
[安定性試験]
表２に示す参考例８〜９の組成物及び比較例３〜４の組成物を、それぞれアルミ袋（１５ｃｍ×１０ｃｍ）に１００ｇ充填し、ヒートシールした後、５５℃条件で密閉保存し、それぞれ２４時間、４８時間保存後にケーキングの有無を確認した。結果を表２に示す。
[Stability test]
100 g of each of the compositions of Reference Examples 8-9 and the compositions of Comparative Examples 3-4 shown in Table 2 were filled in aluminum bags (15 cm × 10 cm), heat sealed, and hermetically stored at 55 ° C., respectively. The presence or absence of caking was confirmed after storage for 24 hours and 48 hours. The results are shown in Table 2.
表３に示す実施例１０の組成物及び、比較例５として、市販の哺乳瓶用洗浄剤（主成分としてジクロロイソシアヌル酸ナトリウムを１包中に７５０ｍｇ含有する顆粒剤）を有効塩素濃度が実使用濃度（約１５０ｐｐｍ）になるように蒸留水に溶解した試験液をそれぞれ作成し、これらの試験液を用いて、以下の評価を行った。 As the composition of Example 10 shown in Table 3 and Comparative Example 5, a commercially available cleaning agent for baby bottles (a granule containing 750 mg of sodium dichloroisocyanurate as a main ingredient in a single package) is actually used in an effective chlorine concentration. Test solutions dissolved in distilled water so as to have a concentration (about 150 ppm) were prepared, and the following evaluations were performed using these test solutions.
[洗浄力評価]
哺乳瓶汚れの代表である粉ミルク溶液１０ミリリットルを、ガラス瓶に充填し乾燥させて水分を蒸発させたものを被洗浄体のサンプルとした。各試験液中にガラス瓶を浸漬し、２０℃にて２４時間放置後、蒸留水の入ったビーカー中で、ガラス瓶を軽く濯ぎ室温で乾燥し、洗浄力効果を下記の判定基準で評価する。結果を表３に示す。
[Detergency evaluation]
A sample to be cleaned was prepared by filling a glass bottle with 10 ml of a powdered milk solution, which is representative of baby bottle soil, and evaporating the moisture. A glass bottle is immersed in each test solution, left at 20 ° C. for 24 hours, then lightly rinsed in a beaker containing distilled water, dried at room temperature, and the cleaning power effect is evaluated according to the following criteria. The results are shown in Table 3.
判定基準：
○…大半の汚れが除去されていた △…半分程度の汚れが除去されていた ×…大半の汚れが除去されずに残っていた
[哺乳瓶容器先端部の天然ゴムに対する耐久性評価]
各試験液中に哺乳瓶容器先端部の天然ゴムを浸漬し、２０℃にて３日間放置後、蒸留水の入ったビーカー中で、哺乳瓶容器先端部の天然ゴムを軽く濯ぎ室温で乾燥し、耐久性を下記の判定基準で評価する。結果を表３に示す。
Judgment criteria:
○: Most of the dirt was removed. △ ... About half of the dirt was removed. × ... Most of the dirt remained without being removed.
[Durability evaluation of the baby bottle container tip against natural rubber]
Soak the natural rubber at the tip of the baby bottle container in each test solution, leave it at 20 ° C for 3 days, rinse it lightly in a beaker containing distilled water and dry at room temperature. The durability is evaluated according to the following criteria. The results are shown in Table 3.
判定基準：
○…ほとんど外観変化なし △…やや外観変化（白色化）あり ×…外観変化（白色化）あり
[哺乳瓶容器に対する耐久性評価]
各試験液中に哺乳瓶容器（ポリカーボネート）を浸漬し、３日に１度、新しい液に交換しながら、４０℃にて１ヶ月間浸漬後、蒸留水の入ったビーカー中で、哺乳瓶容器を軽く濯ぎ室温で乾燥し、耐久性を下記の判定基準で評価する。結果を表３に示す。
Judgment criteria:
○: Almost no change in appearance △: Some change in appearance (whitening) ×: Some change in appearance (whitening)
[Durability evaluation for baby bottle containers]
A baby bottle container (polycarbonate) is immersed in each test solution, and is replaced with a new solution once every three days. After immersion for one month at 40 ° C, the baby bottle container is placed in a beaker containing distilled water. Rinse lightly and dry at room temperature. Durability is evaluated according to the following criteria. The results are shown in Table 3.
判定基準：
○…ほとんど外観変化なし △…やや外観変化（塗装部分の退色）あり ×…外観変化（塗装部分の退色）あり
Judgment criteria:
○: Almost no change in appearance △: Some change in appearance (discoloration of the painted part) × ... Some change in appearance (discoloration of the painted part)
表１〜表３に示すように、本発明の組成物は、優れた洗浄力を発揮するとともに、水に溶かして使用した場合の各種金属や樹脂に対する腐食性及び刺激臭の発生が極めて少なく、保存安定性に優れている。 As shown in Tables 1 to 3, the composition of the present invention exhibits excellent detergency, and is extremely low in corrosiveness and generation of irritating odors to various metals and resins when used dissolved in water. Excellent storage stability.
従前より、ジクロロイソシアヌル酸塩を水に溶かした液の除菌力については、十分な効果があることは知られていた。しかしながら、各種金属や樹脂腐食性及び高濃度水溶液からの刺激臭の発生については、これまで十分な対策法がなかったことから、利用できる範囲が限定されていた。本発明により、優れた洗浄力を発揮するとともに、保存安定性に優れ、水溶液にして使用した場合に各種金属や樹脂に対する腐食性が低く、しかも高濃度水溶液にしても刺激臭を発生しない哺乳瓶用洗浄剤組成物の提供が可能となった。これにより、特定用途のみに利用範囲が限定されていたジクロロイソシアヌル酸塩の水溶液が有する殺菌力を、金属や樹脂類が多く存在する条件下や、高濃度水溶液形態などにおいても、幅広く有効に利用できることとなり、該水溶液の用途の拡大が期待できることとなった。 Conventionally, it has been known that the sterilizing power of a solution obtained by dissolving dichloroisocyanurate in water has a sufficient effect. However, with respect to the generation of irritating odors from various metals, resin corrosiveness, and high-concentration aqueous solutions, there has been no sufficient countermeasures so far, and the usable range has been limited. According to the present invention, a baby bottle that exhibits excellent detergency, has excellent storage stability, has low corrosiveness to various metals and resins when used as an aqueous solution, and does not generate an irritating odor even in a high concentration aqueous solution It became possible to provide a cleaning composition. As a result, the sterilizing power of aqueous solutions of dichloroisocyanurate, whose range of use was limited to specific applications, can be used widely and effectively even under conditions where there are many metals and resins and in the form of highly concentrated aqueous solutions. As a result, expansion of the use of the aqueous solution can be expected.
Claims (1)
但し、該ジクロロイソシアヌル酸塩１００質量部に対して、該メタケイ酸ナトリウム五水和物の配合量が、１５０質量部以上、かつ、６００質量部以下であり、However, with respect to 100 parts by mass of the dichloroisocyanurate, the amount of sodium metasilicate pentahydrate is 150 parts by mass or more and 600 parts by mass or less,
該組成物中の該ジクロロイソシアヌル酸塩の配合量が、０．５〜３０質量％であり、該組成物の１質量％水溶液のｐＨが１１．００以上、かつ、１１．９６以下であり、The blending amount of the dichloroisocyanurate in the composition is 0.5 to 30% by mass, the pH of the 1% by mass aqueous solution of the composition is 11.00 or more and 11.96 or less,
該メタケイ酸ナトリウム五水和物が−０．０１〜−１．００質量％の付着水分量測定値を有するものであり、The sodium metasilicate pentahydrate has a measured water content of -0.01 to -1.00 mass%,
該付着水分量測定値は、該メタケイ酸ナトリウム五水和物をアルミナ坩堝を用いて８００℃、２時間強熱乾燥した後、次式（式１）によって算出される付着水分量（水和物水分量）である：The measured value of the amount of adhering water is the amount of adhering water (hydrate) calculated by the following equation (Equation 1) after the sodium metasilicate pentahydrate is dried at 800 ° C. for 2 hours using an alumina crucible. Moisture content):
付着水分量（％）＝[１−Ａ×（Ｗ３−Ｗ１）／（Ｗ２−Ｗ１）]×１００ （式１） Adhering moisture amount (%) = [1-A × (W3-W1) / (W2-W1)] × 100 (Formula 1)
上記式１の記号については、下記の通りに定める、 The symbol of formula 1 above is determined as follows:
Ａ：１．７３７７（係数） ［＝２１２（分子質量 ＮａA: 1.7377 (coefficient) [= 212 (molecular mass Na 22 Ｏ・ＳｉＯO ・ SiO 22 ・５Ｈ・ 5H 22 Ｏ）／１２２（分子質量 ＮａO) / 122 (molecular mass Na 22 Ｏ・ＳｉＯO ・ SiO 22 ）］]]
Ｗ１：坩堝質量（ｇ）W1: crucible mass (g)
Ｗ２：強熱乾燥前のＷ１と試料精秤量との合計質量（ｇ）W2: Total mass (g) of W1 and the sample weighed before ignition drying
Ｗ３：強熱乾燥後のＷ１と試料精秤量との合計質量（ｇ）。W3: The total mass (g) of W1 after ignitable drying and the sample weight.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SE437014B (en) * | 1982-07-09 | 1985-02-04 | Eka Ab | SET TO MAKE SURFACE MODIFIED, GRANULATED ALKALIMETAL METALSYLICATE PENTA HYDRADE AND USE OF THE SAME IN DISC AND CLEANING COMPOSITIONS |
| JPH078997B2 (en) * | 1988-09-03 | 1995-02-01 | ジェクス株式会社 | Detergent for baby bottles |
| DE3832885A1 (en) * | 1988-09-28 | 1990-04-05 | Ifah Inst Fuer Angewandte Hygi | METHOD FOR MACHINE CLEANING, DISINFECTING AND RINSING DISHES AND THE APPROPRIATE AGENT |
| JPH05117695A (en) * | 1991-03-14 | 1993-05-14 | Manabisu:Kk | Cleaning composition for nursing bottle and tableware |
| EP1155107A1 (en) * | 1999-02-22 | 2001-11-21 | The Procter & Gamble Company | Method of removing stains from a surface |
| JP2002088393A (en) * | 2000-09-14 | 2002-03-27 | Lion Corp | Liquid cleanser composition for food and tableware |
| JP2003027095A (en) * | 2001-07-16 | 2003-01-29 | Asahi Denka Kogyo Kk | Powdered cartridge detergent composition for automatic dishwasher |
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