JP6826424B2 - Dishwashing cleaning agent composition - Google Patents
Dishwashing cleaning agent composition Download PDFInfo
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- JP6826424B2 JP6826424B2 JP2016240420A JP2016240420A JP6826424B2 JP 6826424 B2 JP6826424 B2 JP 6826424B2 JP 2016240420 A JP2016240420 A JP 2016240420A JP 2016240420 A JP2016240420 A JP 2016240420A JP 6826424 B2 JP6826424 B2 JP 6826424B2
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- 239000000203 mixture Substances 0.000 title claims description 79
- 239000012459 cleaning agent Substances 0.000 title claims description 43
- 238000004851 dishwashing Methods 0.000 title claims description 30
- -1 polyoxyethylene Polymers 0.000 claims description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 18
- MRUAUOIMASANKQ-UHFFFAOYSA-N cocamidopropyl betaine Chemical compound CCCCCCCCCCCC(=O)NCCC[N+](C)(C)CC([O-])=O MRUAUOIMASANKQ-UHFFFAOYSA-N 0.000 claims description 17
- 229940073507 cocamidopropyl betaine Drugs 0.000 claims description 17
- MHGOKSLTIUHUBF-UHFFFAOYSA-N 2-ethylhexyl sulfate Chemical compound CCCCC(CC)COS(O)(=O)=O MHGOKSLTIUHUBF-UHFFFAOYSA-N 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 8
- 229930182470 glycoside Natural products 0.000 claims description 4
- 239000003599 detergent Substances 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 description 23
- 230000008020 evaporation Effects 0.000 description 23
- 238000005406 washing Methods 0.000 description 16
- 238000011156 evaluation Methods 0.000 description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 12
- 238000006065 biodegradation reaction Methods 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 5
- 125000000217 alkyl group Chemical group 0.000 description 5
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 230000001629 suppression Effects 0.000 description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- 231100000111 LD50 Toxicity 0.000 description 4
- 229960003237 betaine Drugs 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- 229930195729 fatty acid Natural products 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 150000004665 fatty acids Chemical class 0.000 description 4
- 230000007794 irritation Effects 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000002537 cosmetic Substances 0.000 description 3
- SMVRDGHCVNAOIN-UHFFFAOYSA-L disodium;1-dodecoxydodecane;sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O.CCCCCCCCCCCCOCCCCCCCCCCCC SMVRDGHCVNAOIN-UHFFFAOYSA-L 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- PYIDGJJWBIBVIA-UYTYNIKBSA-N lauryl glucoside Chemical compound CCCCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O PYIDGJJWBIBVIA-UYTYNIKBSA-N 0.000 description 3
- 229940048848 lauryl glucoside Drugs 0.000 description 3
- DGSDBJMBHCQYGN-UHFFFAOYSA-M sodium;2-ethylhexyl sulfate Chemical compound [Na+].CCCCC(CC)COS([O-])(=O)=O DGSDBJMBHCQYGN-UHFFFAOYSA-M 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 239000004034 viscosity adjusting agent Substances 0.000 description 3
- JVTAAEKCZFNVCJ-REOHCLBHSA-N L-lactic acid Chemical compound C[C@H](O)C(O)=O JVTAAEKCZFNVCJ-REOHCLBHSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 241000700159 Rattus Species 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000002280 amphoteric surfactant Substances 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 230000002335 preservative effect Effects 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 2
- 239000004299 sodium benzoate Substances 0.000 description 2
- 235000010234 sodium benzoate Nutrition 0.000 description 2
- CHHHXKFHOYLYRE-UHFFFAOYSA-M 2,4-Hexadienoic acid, potassium salt (1:1), (2E,4E)- Chemical compound [K+].CC=CC=CC([O-])=O CHHHXKFHOYLYRE-UHFFFAOYSA-M 0.000 description 1
- QCDWFXQBSFUVSP-UHFFFAOYSA-N 2-phenoxyethanol Chemical compound OCCOC1=CC=CC=C1 QCDWFXQBSFUVSP-UHFFFAOYSA-N 0.000 description 1
- 206010058667 Oral toxicity Diseases 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 231100000460 acute oral toxicity Toxicity 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 235000015278 beef Nutrition 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 125000003563 glycoside group Chemical group 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 231100000418 oral toxicity Toxicity 0.000 description 1
- 229960005323 phenoxyethanol Drugs 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004302 potassium sorbate Substances 0.000 description 1
- 235000010241 potassium sorbate Nutrition 0.000 description 1
- 229940069338 potassium sorbate Drugs 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 235000020183 skimmed milk Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- JXKPEJDQGNYQSM-UHFFFAOYSA-M sodium propionate Chemical compound [Na+].CCC([O-])=O JXKPEJDQGNYQSM-UHFFFAOYSA-M 0.000 description 1
- 239000004324 sodium propionate Substances 0.000 description 1
- 235000010334 sodium propionate Nutrition 0.000 description 1
- 229960003212 sodium propionate Drugs 0.000 description 1
- 239000004334 sorbic acid Substances 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
- 229940075582 sorbic acid Drugs 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000048 toxicity data Toxicity 0.000 description 1
- 230000005068 transpiration Effects 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
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- Detergent Compositions (AREA)
Description
本発明は、食器洗い用洗浄剤組成物に関する。 The present invention relates to a dishwashing cleaning agent composition.
食器洗いの際に、素手で食器の表面を擦り、「キュキュッ」等という音を発生させることで食器汚れが残存していないことを確かめ、食器の洗浄度を判断する習慣がある。そのため、炊事用手袋を保有していたとしても、素手で食器を洗う人が多い。また、洗浄剤の原液を直接つけたスポンジを用いて食器を洗う習慣があり、洗浄剤に含まれる、高い濃度の界面活性剤組成物が、ぬれた手肌に触れる可能性が高い。よって、食器洗い用洗浄剤は、手肌に対して低刺激であり、かつ必要な洗浄力を有することが要求される。 When washing dishes, it is customary to rub the surface of the dishes with bare hands and make a noise such as "squeak" to make sure that no stains remain on the dishes and to judge the degree of washing of the dishes. Therefore, many people wash dishes with their bare hands even if they have cooking gloves. In addition, it is customary to wash dishes using a sponge directly dipped in a stock solution of a cleaning agent, and there is a high possibility that the high-concentration surfactant composition contained in the cleaning agent will come into contact with wet hands. Therefore, the dishwashing cleaning agent is required to be mild to the hand skin and have the necessary cleaning power.
また、冬季は室内温度が低くなりやすく、特にキッチンは住宅の中でも冷えやすい場所である。よって、食器洗い用洗浄剤は、低温安定性も要求される。 In addition, the indoor temperature tends to be low in winter, and the kitchen is a particularly cold place in a house. Therefore, the dishwashing cleaning agent is also required to have low temperature stability.
低刺激であることに対し、例えば非特許文献１では、一般的に食器洗い用洗浄剤に使用される陰イオン性界面活性剤であるポリオキシエチレンアルキルエーテル硫酸塩に対し、脂肪酸アミドアルキルベタインなどの両性界面活性剤を添加することで、皮膚の水分蒸散増加を抑制し刺激性を低減できることが開示されている。 In contrast to the low irritation, for example, in Non-Patent Document 1, fatty acid amide alkyl betaine and the like are used as opposed to polyoxyethylene alkyl ether sulfate, which is an anionic surfactant generally used for dishwashing cleaning agents. It is disclosed that the addition of an amphoteric surfactant can suppress an increase in water evaporation of the skin and reduce irritation.
また、例えば特許文献１では、粘度抑制剤としてアルコールを添加すると洗浄剤の粘度上昇問題を解決できることが開示されている。他に、特許文献２では、アルコールは粘度抑制剤のほかにも低温安定性を付加する成分として配合できることが開示されている。 Further, for example, Patent Document 1 discloses that the problem of increasing the viscosity of a cleaning agent can be solved by adding alcohol as a viscosity inhibitor. In addition, Patent Document 2 discloses that alcohol can be blended as a component that adds low temperature stability in addition to the viscosity inhibitor.
しかしながら、非特許文献１に記載するような洗浄剤組成物は、ポリオキシエチレンアルキルエーテル硫酸塩の添加量に対する脂肪酸アミドアルキルベタインの添加量の割合を増やすと、洗浄剤の粘度が過度に上昇してしまう場合がある。 However, in the cleaning agent composition as described in Non-Patent Document 1, when the ratio of the addition amount of the fatty acid amide alkyl betaine to the addition amount of the polyoxyethylene alkyl ether sulfate is increased, the viscosity of the cleaning agent is excessively increased. It may end up.
また、従来の洗浄剤組成物において、ポリオキシエチレンアルキルエーテル硫酸塩に脂肪酸アミドアルキルベタインを添加すると、食器洗い後の手肌の水分蒸散量増加を抑制できるが、粘度が過度に上昇する問題がある。その問題に対して、アルコール類、例えばエタノールを添加することで、組成物の過度な粘度の上昇を抑制できるが、脂肪酸アミドアルキルベタインによる水分蒸散増加の低減効果が相殺されてしまう問題がある。 Further, in the conventional cleaning agent composition, when the fatty acid amide alkyl betaine is added to the polyoxyethylene alkyl ether sulfate, the increase in the amount of water evaporation of the hand skin after washing the dishes can be suppressed, but there is a problem that the viscosity is excessively increased. .. To solve this problem, the addition of alcohols, for example, ethanol can suppress an excessive increase in the viscosity of the composition, but there is a problem that the effect of reducing the increase in water transpiration due to the fatty acid amide alkyl betaine is offset.
さらに、化粧料分野の洗浄剤組成物においてはアルコールフリー化による低刺激化が検討されているが、従来の食器洗い用洗浄剤組成物は、界面活性剤濃度が化粧料より高くする必要がある場合が多く、高粘度化を抑制する粘度調整剤としてのアルコールを含ませることが必要である。そのことから、これまで食器洗い用洗浄剤組成物のアルコールフリー化は、ほとんど検討されてきていない。 Further, in the cleaning agent composition in the field of cosmetics, reduction of irritation by alcohol-free is being studied, but in the conventional cleaning agent composition for dishwashing, when the surfactant concentration needs to be higher than that of cosmetics. It is necessary to include alcohol as a viscosity modifier that suppresses the increase in viscosity. For this reason, almost no alcohol-free dishwashing cleaning composition has been studied so far.
そこで、本発明は、必要な洗浄力及び適正範囲にある粘度を有し、食器洗い後の手肌の水分蒸散量増加を抑制できる、食器洗い用洗浄剤組成物を提供することを目的とする。 Therefore, an object of the present invention is to provide a dishwashing cleaning agent composition having a necessary detergency and a viscosity within an appropriate range and capable of suppressing an increase in the amount of water evaporation of the hand skin after washing the dishes.
本発明者らは、上記従来技術の課題を解決するために鋭意研究を重ねた結果、ポリオキシエチレンアルキルエーテル硫酸塩と、コカミドプロピルベタインと、アルキルグリコシドと、２−エチルヘキシル硫酸塩と、水と、を含有する食器洗い用洗浄剤組成物であって、当該ポリオキシエチレンアルキルエーテル硫酸塩の含有量と当該コカミドプロピルベタインの含有量との合計量、当該２−エチルヘキシル硫酸塩の含有量、当該ポリオキシエチレンアルキルエーテル硫酸塩に対する当該コカミドプロピルベタインの含有比が、各々特定範囲にある、食器洗い用洗浄剤組成物が、必要な洗浄力及び適正範囲にある粘度を有しながらも、食器洗い後の手肌の水分蒸散量増加を抑制できことを見出し、本発明をなすに至った。 As a result of intensive studies to solve the above-mentioned problems of the prior art, the present inventors have made polyoxyethylene alkyl ether sulfate, cocamidopropyl betaine, alkyl glycoside, 2-ethylhexyl sulfate, and water. And, in the dishwashing cleaning agent composition containing, the total amount of the content of the polyoxyethylene alkyl ether sulfate and the content of the cocamidopropyl betaine, the content of the 2-ethylhexyl sulfate, The content ratio of the cocamidopropyl betaine to the polyoxyethylene alkyl ether sulfate is in a specific range, and the dishwashing cleaning agent composition has the required detergency and the viscosity in the appropriate range, but the dishwashing We have found that it is possible to suppress an increase in the amount of water evaporation from the skin of the hands later, and have completed the present invention.
具体的には、
［１］
ポリオキシエチレンアルキルエーテル硫酸塩と、コカミドプロピルベタインと、アルキルグリコシドと、２−エチルヘキシル硫酸塩と、水と、を含有する、食器洗い用洗浄剤組成物であって、
前記食器洗い用洗浄剤組成物の総量に対して、前記ポリオキシエチレンアルキルエーテル硫酸塩の含有量と前記コカミドプロピルベタインの含有量との合計量が１０質量％以上２０質量％以下であり、前記２−エチルヘキシル硫酸塩の含有量が０．１質量％以上５．０質量％以下であり、
前記ポリオキシエチレンアルキルエーテル硫酸塩に対する前記コカミドプロピルベタインの含有比が、０．３以上１．０以下である、食器洗い用洗浄剤組成物。
［２］
アルコール化合物の含有量が、前記食器洗い用洗浄剤組成物の総量に対して、１．５質量％以下である、［１］に記載の食器洗い用洗浄剤組成物。
In particular,
[1]
A dishwashing cleaning composition containing polyoxyethylene alkyl ether sulfate, cocamidopropyl betaine, alkyl glycoside, 2-ethylhexyl sulfate, and water.
The total amount of the polyoxyethylene alkyl ether sulfate content and the cocamidopropyl betaine content is 10% by mass or more and 20% by mass or less with respect to the total amount of the dishwashing cleaning agent composition. The content of 2-ethylhexyl sulfate is 0.1% by mass or more and 5.0% by mass or less.
A dishwashing cleaning agent composition in which the content ratio of the cocamidopropyl betaine to the polyoxyethylene alkyl ether sulfate is 0.3 or more and 1.0 or less.
[2]
The dishwashing cleaning agent composition according to [1], wherein the content of the alcohol compound is 1.5% by mass or less with respect to the total amount of the dishwashing cleaning agent composition.
本発明に係る食器洗い用洗浄剤組成物によれば、必要な洗浄力及び適正範囲の粘度が得られ、かつ食器洗い後の手肌の水分蒸散量増加を抑制できる。 According to the dishwashing cleaning agent composition according to the present invention, a required detergency and a viscosity in an appropriate range can be obtained, and an increase in the amount of water evaporation from the hand skin after washing the dishes can be suppressed.
以下、本発明を実施するための形態（以下、単に「本実施形態」という。）について詳細に説明する。以下の本実施形態は、本発明を説明するための例示であり、本発明を以下の内容に限定する趣旨ではない。本発明は、その要旨の範囲内で適宜に変形して実施できる。 Hereinafter, embodiments for carrying out the present invention (hereinafter, simply referred to as “the present embodiment”) will be described in detail. The following embodiments are examples for explaining the present invention, and are not intended to limit the present invention to the following contents. The present invention can be appropriately modified and implemented within the scope of the gist thereof.
〔食器洗い用洗浄剤組成物〕
本実施形態の食器洗い用洗浄剤組成物（以下、単に「洗浄剤組成物」、「組成物」ともいう。）は、ポリオキシエチレンアルキルエーテル硫酸塩（以下、「ポリオキシエチレンアルキルエーテル硫酸塩（ａ）」、「成分（ａ）」、「（ａ）」ともいう。）と、コカミドプロピルベタイン（以下、「コカミドプロピルベタイン（ｂ）」、「成分（ｂ）」、「（ｂ）」ともいう。）と、アルキルグリコシド（以下、「アルキルグリコシド（ｃ）」、「成分（ｃ）」、「（ｃ）」ともいう。）と、２−エチルヘキシル硫酸塩（以下、「２−エチルヘキシル硫酸塩（ｄ）」、「成分（ｄ）」、「（ｄ）」ともいう。）と、水（以下、「水（ｅ）」、「成分（ｅ）」、「（ｅ）」ともいう。）と、を含有する。また、本実施形態の組成物の総量（１００質量％）に対して、ポリオキシエチレンアルキルエーテル硫酸塩（ａ）の含有量とコカミドプロピルベタイン（ｂ）の含有量との合計量（合計含有量）が１０質量％以上２０質量％以下であり、２−エチルヘキシル硫酸塩（ｄ）の含有量が０．１質量％以上５．０質量％以下である。さらに、ポリオキシエチレンアルキルエーテル硫酸塩（ａ）に対するコカミドプロピルベタイン（ｂ）の含有比が、０．３以上１．０以下である。
[Washing agent composition for washing dishes]
The dishwashing cleaning agent composition of the present embodiment (hereinafter, also simply referred to as "cleaning agent composition" and "composition") is a polyoxyethylene alkyl ether sulfate (hereinafter, "polyoxyethylene alkyl ether sulfate (hereinafter, also referred to as" polyoxyethylene alkyl ether sulfate "). a) ”,“ component (a) ”,“ (a) ”) and cocamidopropyl betaine (hereinafter,“ cocamidopropyl betaine (b) ”,“ component (b) ”,“ (b) (Hereinafter, also referred to as “alkylglycoside (c)”, “component (c)”, “(c)”) and 2-ethylhexyl sulfate (hereinafter, “2-ethylhexyl”). Sulfate (d) ”,“ component (d) ”,“ (d) ”) and water (hereinafter, also referred to as“ water (e) ”,“ component (e) ”,“ (e) ”. ) And. Further, the total amount (total content) of the content of the polyoxyethylene alkyl ether sulfate (a) and the content of the cocamidopropyl betaine (b) with respect to the total amount (100% by mass) of the composition of the present embodiment. The amount) is 10% by mass or more and 20% by mass or less, and the content of 2-ethylhexyl sulfate (d) is 0.1% by mass or more and 5.0% by mass or less. Further, the content ratio of cocamidopropyl betaine (b) to the polyoxyethylene alkyl ether sulfate (a) is 0.3 or more and 1.0 or less.
＜ポリオキシエチレンアルキルエーテル硫酸塩：成分（ａ）＞
本実施形態の成分（ａ）は、下記一般式（Ｉ）で示される陰イオン性界面活性剤である。
Ｒ1−Ｏ−（ＣＨ2ＣＨ2Ｏ）x−ＳＯ3Ｍ ・・・（Ｉ）
式（Ｉ）中、Ｒ1はアルキル基を示し、Ｍは金属原子である。
<Polyoxyethylene alkyl ether sulfate: component (a)>
The component (a) of the present embodiment is an anionic surfactant represented by the following general formula (I).
R 1 −O− (CH 2 CH 2 O) x −SO 3 M ・ ・ ・ (I)
In formula (I), R 1 represents an alkyl group and M is a metal atom.
式（Ｉ）中のＲ1のアルキル基の炭素数は、１０以上１８以下であることが好ましい。Ｒ1のアルキル基の炭素数がこのような範囲内にあると、必要な洗浄力と食器洗い後の手肌の水分蒸散量増加の抑制とをより効果的に得られる傾向にある。炭素数は１０以上であることが好ましく、１２以上であるとより好ましい。また、炭素数は１８以下であることが好ましく、１６以下であるとより好ましく、１４以下であるとさらに好ましい。また、Ｒ1のアルキル基の炭素数は、偶数、奇数、又はそれらの混合で構成される。中でも、より優れた生分解性を示すためには、炭素数が偶数のみで構成されることが好ましい。 The alkyl group of R 1 in the formula (I) preferably has 10 or more and 18 or less carbon atoms. When the number of carbon atoms of the alkyl group of R 1 is within such a range, the required detergency and the suppression of the increase in the amount of water evaporation of the hand skin after washing the dishes tend to be obtained more effectively. The number of carbon atoms is preferably 10 or more, and more preferably 12 or more. The number of carbon atoms is preferably 18 or less, more preferably 16 or less, and even more preferably 14 or less. Further, the number of carbon atoms of the alkyl group of R 1 is composed of an even number, an odd number, or a mixture thereof. Above all, in order to exhibit more excellent biodegradability, it is preferable that the carbon number is only an even number.
式（Ｉ）中のＭは、ナトリウム、又はカリウムを示すことが好ましく、ナトリウムを示すことがより好ましい。 M in the formula (I) preferably represents sodium or potassium, and more preferably sodium.
式（Ｉ）中のｘは、成分（ａ）各分子のｘの平均値であり、１．０以上３．０以下であると組成物の生分解性が優れる点で好ましく、１．０以上２．５以下であるとより好ましく、１．５以上２．５以下であるとさらに好ましい。 X in the formula (I) is an average value of x of each molecule of the component (a), and when it is 1.0 or more and 3.0 or less, the biodegradability of the composition is excellent, and 1.0 or more. It is more preferably 2.5 or less, and further preferably 1.5 or more and 2.5 or less.
具体的な成分（ａ）としては、特に限定されないが、例えば、ラウリルエーテル硫酸ナトリウムが挙げられる。 The specific component (a) is not particularly limited, and examples thereof include sodium lauryl ether sulfate.
成分（ａ）は、１種を単独で用いてもよく、２種以上を併用してもよい。 As the component (a), one type may be used alone, or two or more types may be used in combination.
組成物中の成分（ａ）の含有量は、該組成物の総量（１００質量％）に対して、６．０以上２０質量％以下であることが好ましい。成分（ａ）の含有量が６．０質量％以上であると、例えば洗浄剤組成物が洗浄過程でその濃度が薄まった場合でも、必要な洗浄力を発揮できる濃度をより長く保つことができる傾向にあり、７．０質量％以上であるとより好ましい。成分（ａ）の含有量が２０質量％以下であると、食器洗い後の手肌の水分蒸散量増加を抑制できる傾向にあり、１７質量％以下であるとより好ましく、１３質量％以下であるとさらに好ましい。 The content of the component (a) in the composition is preferably 6.0 or more and 20% by mass or less with respect to the total amount (100% by mass) of the composition. When the content of the component (a) is 6.0% by mass or more, for example, even if the concentration of the cleaning agent composition diminishes in the cleaning process, the concentration capable of exerting the required detergency can be maintained for a longer period of time. There is a tendency, and it is more preferable that it is 7.0% by mass or more. When the content of the component (a) is 20% by mass or less, the increase in the amount of water evaporation of the hand skin after washing the dishes tends to be suppressed, and when it is 17% by mass or less, it is more preferable, and when it is 13% by mass or less. More preferred.
＜コカミドプロピルベタイン：成分（ｂ）＞
本実施形態の成分（ｂ）は、下記一般式（ＩＩ）で示される両性界面活性剤である。
Ｒ2−ＣＯＮＨ−（ＣＨ2）3−Ｎ+（ＣＨ3）2−ＣＨ2−ＣＯＯ- ・・・（ＩＩ）
式（ＩＩ）中、Ｒ2はアルキル基を示す。
<Cocamidopropyl Betaine: Ingredient (b)>
The component (b) of the present embodiment is an amphoteric surfactant represented by the following general formula (II).
R 2 -CONH- (CH 2) 3 -N + (CH 3) 2 -CH 2 -COO - ··· (II)
In formula (II), R 2 represents an alkyl group.
式（ＩＩ）中のＲ2の炭素数は、８．０以上２０以下であることが好ましい。Ｒ2の炭素数がこのような範囲内にあると、必要な洗浄力と食器洗い後の手肌の水分蒸散量増加の抑制とをより効果的に得られる傾向にある。式（ＩＩ）中のＲ2の炭素数は、偶数、奇数、又はそれらの混合で構成される。中でも、より優れた生分解性を示すためには、炭素数が偶数のみで構成されることが好ましい。 The carbon number of R 2 in the formula (II) is preferably 8.0 or more and 20 or less. When the carbon number of R 2 is within such a range, the necessary detergency and the suppression of the increase in the amount of water evaporation of the hand skin after washing the dishes tend to be obtained more effectively. The carbon number of R 2 in the formula (II) is composed of an even number, an odd number, or a mixture thereof. Above all, in order to exhibit more excellent biodegradability, it is preferable that the carbon number is only an even number.
具体的な成分（ｂ）としては、特に限定されないが、例えば、コカミドプロピルベタインが挙げられる。 The specific component (b) is not particularly limited, and examples thereof include cocamidopropyl betaine.
成分（ｂ）は、１種を単独で用いてもよく、２種以上を併用してもよい。 As the component (b), one type may be used alone, or two or more types may be used in combination.
組成物中の成分（ｂ）の含有量は、該組成物の総量（１００質量％）に対して、３．０質量％以上１０質量％以下であることが好ましく、このような範囲内にあると、適正な粘度により調整が容易となり、食器洗い後の手肌の水分蒸散量増加をより抑制できる傾向にある。成分（ｂ）の含有量は、３．０質量％以上であると好ましく、４．０質量％以上であるとより好ましく、５．０質量％以上であるとさらに好ましい。 The content of the component (b) in the composition is preferably 3.0% by mass or more and 10% by mass or less with respect to the total amount (100% by mass) of the composition, and is within such a range. Then, the appropriate viscosity makes it easy to adjust, and there is a tendency that the increase in the amount of water evaporation of the hand skin after washing the dishes can be further suppressed. The content of the component (b) is preferably 3.0% by mass or more, more preferably 4.0% by mass or more, and further preferably 5.0% by mass or more.
組成物中の成分（ａ）の含有量と成分（ｂ）の含有量との合計量（以下、「合計含有量」、「（ａ）＋（ｂ）」ともいう。）は、該組成物の総量（１００質量％）に対して、１０質量％以上２０質量％以下である。（ａ）＋（ｂ）が１０質量％以上であると、例えば洗浄剤組成物が洗浄過程でその濃度が薄まった場合でも、必要な洗浄力を発揮できる濃度をより長く保つことができ、１１質量％以上であると好ましく、１２質量％以上であるとより好ましい。また、（ａ）＋（ｂ）が２０質量％以下であると、粘度調整剤の添加量を抑えながらも適正な粘度に調整でき、食器洗い後の手肌の水分蒸散量増加を抑制でき、１９質量％以下であると好ましく、１８質量％以下であるとより好ましい。 The total amount of the content of the component (a) and the content of the component (b) in the composition (hereinafter, also referred to as "total content" and "(a) + (b)") is the composition. It is 10% by mass or more and 20% by mass or less with respect to the total amount (100% by mass) of. When (a) + (b) is 10% by mass or more, for example, even if the concentration of the cleaning agent composition diminishes in the cleaning process, the concentration capable of exerting the required detergency can be maintained for a longer period of time. It is preferably mass% or more, and more preferably 12 mass% or more. Further, when (a) + (b) is 20% by mass or less, the viscosity can be adjusted to an appropriate level while suppressing the addition amount of the viscosity modifier, and the increase in the amount of water evaporation of the hand skin after washing the dishes can be suppressed. It is preferably 1% by mass or less, and more preferably 18% by mass or less.
成分（ａ）の含有量に対する成分（ｂ）の含有量（以下、「（ｂ）／（ａ）」ともいう。）は、０．３以上１．０以下である。（ｂ）／（ａ）が０．３以上であると、必要な洗浄力と食器洗い後の手肌の水分蒸散量増加の抑制とを両方達成でき、０．４以上であると好ましく、０．５以上であるとより好ましい。（ｂ）／（ａ）が１．０以下であると、食器洗い後の手肌の水分蒸散量増加を抑制しながらも、粘度調整剤の添加量を抑え適正な粘度に調整できる。 The content of the component (b) (hereinafter, also referred to as “(b) / (a)”) with respect to the content of the component (a) is 0.3 or more and 1.0 or less. When (b) / (a) is 0.3 or more, both the necessary detergency and the suppression of the increase in the amount of water evaporation of the hand skin after washing the dishes can be achieved, and it is preferably 0.4 or more. 5 or more is more preferable. When (b) / (a) is 1.0 or less, the amount of the viscosity modifier added can be suppressed and the viscosity can be adjusted to an appropriate level while suppressing the increase in the amount of water evaporation from the hand skin after washing the dishes.
＜アルキルグリコシド：成分（ｃ）＞
本実施形態の成分（ｃ）は、下記一般式（ＩＩＩ）で示される界面活性剤である。
Ｒ3−（Ｏ−Ｇ）y−ＯＨ ・・・（ＩＩＩ）
<Alkyl glycoside: component (c)>
The component (c) of this embodiment is a surfactant represented by the following general formula (III).
R 3- (OG) y- OH ... (III)
式（ＩＩＩ）中のＲ3の炭素数は、８以上１８以下であり、１０以上１６以下であることが好ましい。Ｒ3の炭素数がこのような範囲内にあると、必要な洗浄力と食器洗い後の手肌の水分蒸散量増加の抑制とを得られる。 The carbon number of R 3 in the formula (III) is 8 or more and 18 or less, and preferably 10 or more and 16 or less. When the carbon number of R 3 is within such a range, the necessary detergency and the suppression of the increase in the amount of water evaporation of the hand skin after washing the dishes can be obtained.
式（ＩＩＩ）中のＧはグリコシド基を示し、ｙは、１以上３以下であり、１以上２以下であることが好ましい。ｙがこのような範囲内にあると、必要十分な洗浄力と食器洗い後の手肌の水分蒸散量増加の抑制とを得られる。 G in the formula (III) represents a glycoside group, y is 1 or more and 3 or less, and preferably 1 or more and 2 or less. When y is within such a range, necessary and sufficient detergency and suppression of increase in the amount of water evaporation of the hand skin after washing the dishes can be obtained.
具体的な成分（ｃ）としては、特に限定されないが、例えば、ラウリルグルコシドが挙げられる。 The specific component (c) is not particularly limited, and examples thereof include lauryl glucoside.
成分（ｃ）は、１種を単独で用いてもよく、２種以上を併用してもよい。 As the component (c), one type may be used alone, or two or more types may be used in combination.
組成物中の成分（ｃ）の含有量は、該組成物の総量（１００質量％）に対して、０．１質量％以上５．０質量％以下であることが好ましく、このような範囲内にあると、適正な粘度により容易に調整でき、食器洗い後の手肌の水分蒸散増加量をより抑制できる傾向にある。 The content of the component (c) in the composition is preferably 0.1% by mass or more and 5.0% by mass or less with respect to the total amount (100% by mass) of the composition, and is within such a range. In the case of, it can be easily adjusted by an appropriate viscosity, and there is a tendency that the amount of increase in water evaporation of the hand skin after washing dishes can be further suppressed.
＜２−エチルヘキシル硫酸塩：成分（ｄ）＞
本実施形態の成分（ｄ）は、下記一般式（ＩＶ）で示される成分である。
ＣＨ3（ＣＨ2）3ＣＨ（ＣＨ2ＣＨ3）ＣＨ2ＯＳＯ3Ｍ ・・・（ＩＶ）
式（ＩＶ）中、Ｍは式（Ｉ）中におけるものと同義であり、金属原子を示す。
<2-Ethylhexyl sulfate: component (d)>
The component (d) of the present embodiment is a component represented by the following general formula (IV).
CH 3 (CH 2 ) 3 CH (CH 2 CH 3 ) CH 2 OSO 3 M ・ ・ ・ (IV)
In formula (IV), M is synonymous with that in formula (I) and represents a metal atom.
式（ＩＶ）中のＭも、ナトリウム、又はカリウムを示すことが好ましく、ナトリウムがより好ましい。 M in the formula (IV) also preferably represents sodium or potassium, more preferably sodium.
具体的な成分（ｄ）としては、特に限定されないが、例えば、２−エチルヘキシル硫酸ナトリウムが挙げられる。２−エチルヘキシル硫酸塩を用いると、適正な粘度により容易に調整でき、低温安定性により優れ、食器洗い後の手肌の水分蒸散量増加をより抑制できる傾向にある。 The specific component (d) is not particularly limited, and examples thereof include sodium 2-ethylhexyl sulfate. When 2-ethylhexyl sulfate is used, it can be easily adjusted by an appropriate viscosity, has excellent low temperature stability, and tends to further suppress an increase in the amount of water evaporation from the hand skin after washing dishes.
成分（ｄ）は、１種を単独で用いてもよく、２種以上を併用してもよい。 As the component (d), one type may be used alone, or two or more types may be used in combination.
組成物中の成分（ｄ）の含有量は、該組成物の総量（１００質量％）に対して、０．１質量％以上５．０質量％以下である。成分（ｄ）の含有量がこのような範囲内にあると、適正な粘度に調整でき、低温安定性に優れ、食器洗い後の手肌の水分蒸散量増加を抑制できる。成分（ｄ）の含有量は、０．３質量％以上４．０質量％以下であると好ましく、０．５質量以上３．０質量％以下であるとより好ましい。 The content of the component (d) in the composition is 0.1% by mass or more and 5.0% by mass or less with respect to the total amount (100% by mass) of the composition. When the content of the component (d) is within such a range, the viscosity can be adjusted to an appropriate level, the stability at low temperature is excellent, and the increase in the amount of water evaporation of the hand skin after washing the dishes can be suppressed. The content of the component (d) is preferably 0.3% by mass or more and 4.0% by mass or less, and more preferably 0.5% by mass or more and 3.0% by mass or less.
＜水：成分（ｅ）＞
本実施形態の成分（ｅ）は、水であれば特に限定されない。
<Water: Ingredient (e)>
The component (e) of the present embodiment is not particularly limited as long as it is water.
組成物中の成分（ｅ）の含有量は、該組成物の総量（１００質量％）に対して、６０質量％以上９５質量％以下であることが好ましく、７０質量％以上９０質量％以下であるとより好ましい。 The content of the component (e) in the composition is preferably 60% by mass or more and 95% by mass or less, and 70% by mass or more and 90% by mass or less, based on the total amount (100% by mass) of the composition. It is more preferable to have it.
＜保存剤：成分（ｆ）＞
本実施形態の組成物は、上述した成分（ａ）、成分（ｂ）、成分（ｃ）、成分（ｄ）及び成分（ｅ）以外にも、保存剤（以下、「成分（ｆ）」、「（ｆ）」ともいう。）をさらに含有していてもよい。
<Preservative: Ingredient (f)>
In addition to the above-mentioned component (a), component (b), component (c), component (d) and component (e), the composition of the present embodiment includes a preservative (hereinafter, "component (f)"). It may further contain "(f)").
成分（ｆ）としては、特に限定されないが、例えば、ソルビン酸、ソルビン酸カリウム、Ｌ−乳酸、塩化ナトリウム、パラオキシ安息香酸ブチル、パラオキシ安息香酸プロピル、安息香酸ナトリウム、及びプロピオン酸ナトリウムが挙げられる。 The component (f) is not particularly limited, and examples thereof include sorbic acid, potassium sorbate, L-lactic acid, sodium chloride, butyl paraoxybenzoate, propyl paraoxybenzoate, sodium benzoate, and sodium propionate.
成分（ｆ）は、１種を単独で用いてもよく、２種以上を併用してもよい。 As the component (f), one type may be used alone, or two or more types may be used in combination.
組成物中の成分（ｆ）の急性経口毒性（ラットの半数致死量、ＬＤ50、単位：ラットの体重（ｋｇ）あたりの投与重量（ｍｇ））は、２０００ｍｇ／ｋｇ以上であると、組成物の生分解性が優れる点で好ましく、３０００ｍｇ／ｋｇ以上であるとより好ましく、４０００ｍｇ／ｋｇ以上であるとさらに好ましい。 When the acute oral toxicity of the component (f) in the composition (median lethal dose of rats, LD 50 , unit: dose weight (mg) per body weight (kg) of rats) is 2000 mg / kg or more, the composition It is preferable from the viewpoint of excellent biodegradability, more preferably 3000 mg / kg or more, and further preferably 4000 mg / kg or more.
本実施形態において、経口毒性（半数致死量、ＬＤ50）は、化学物質毒性データ総覧（Ｒｅｇｉｓｔｒｙ ｏｆ Ｔｏｘｉｃ Ｅｆｆｅｃｔｓ ｏｆ Ｃｈｅｍｉｃａｌ Ｓｕｂｓｔａｎｃｅｓ，ＲＴＥＣＳ）の値を用いる。 In this embodiment, the value of the registry toxicity data (Registry of Toxic Effects of Chemical Substations, RETCS) is used as the oral toxicity (median lethal dose, LD 50 ).
本実施形態の組成物において、アルコール化合物の含有量は、該組成物の総量（１００質量％）に対して、１．５質量％以下であることが好ましい。 In the composition of the present embodiment, the content of the alcohol compound is preferably 1.5% by mass or less with respect to the total amount (100% by mass) of the composition.
上記のアルコール化合物とは、水酸基を有する化合物であれば特に限定されないが、例えば、メタノール、エタノール、プロピルアルコール、イソプロピルアルコール、ブチルアルコール、及びフェノキシエタノールが挙げられる。この中でも、エタノールの含有量が１．５質量％以下であることがより好ましく、１．０質量％以下であることがさらに好ましく、０．５質量％以下であることがよりさらに好ましく、アルコール化合物の含有量が１．５質量％以下であることにより、食器洗い後の手肌の水分蒸散量増加をより抑制できる傾向にある。アルコール化合物の含有量は、例えばガスクロマトグラフィーにより測定できる。 The above-mentioned alcohol compound is not particularly limited as long as it is a compound having a hydroxyl group, and examples thereof include methanol, ethanol, propyl alcohol, isopropyl alcohol, butyl alcohol, and phenoxy ethanol. Among these, the content of ethanol is more preferably 1.5% by mass or less, further preferably 1.0% by mass or less, further preferably 0.5% by mass or less, and an alcohol compound. When the content of is 1.5% by mass or less, the increase in the amount of water evaporation of the hand skin after washing the dishes tends to be further suppressed. The content of the alcohol compound can be measured, for example, by gas chromatography.
本実施形態の組成物は、上記成分のほかにも、さらに添加剤を含有していてもよい。添加剤としては、特に限定されないが、例えば、香料、色素、及び天然抽出物が挙げられる。 The composition of the present embodiment may further contain additives in addition to the above-mentioned components. Additives include, but are not limited to, fragrances, pigments, and natural extracts.
本実施形態の組成物の水分蒸散増加量は、三次元皮膚モデルにおける水分蒸散増加量であり、５．０ｇ／（ｍ2・ｈ）以下であることが好ましく、４．０ｇ／（ｍ2・ｈ）以下であることがより好ましく、３．０ｇ／（ｍ2・ｈ）以下であることがさらに好ましい。 Water loss increase amount of the composition of the present embodiment is a water evaporation increase in the three-dimensional skin model, it is preferably 5.0g / (m 2 · h) or less, 4.0g / (m 2 · h) or less is more preferable, and 3.0 g / (m 2 · h) or less is further preferable.
水分蒸散増加量は、恒温恒湿室（温度２３〜２８℃、相対湿度１５〜２５％）にてアサヒバイオメッド社の商品名「ＶＡＰＯＳＣＡＮ」を用いて測定することができる。具体的には、後述する実施例に記載の方法により測定できる。 The amount of increase in water evaporation can be measured in a constant temperature and humidity chamber (temperature 23 to 28 ° C., relative humidity 15 to 25%) using the trade name "VAPOSCAN" of Asahi Biomed. Specifically, it can be measured by the method described in Examples described later.
本実施形態の組成物の粘度は、５０ｍＰａｓ以上２０００ｍＰａｓ以下であることが好ましい。粘度が５０ｍＰａｓ以上であると、例えば食器洗い用スポンジに組成物を使用した際により長くスポンジ上に組成物が留まることができる傾向にある。また、粘度が２０００ｍＰａｓ以下であると、例えば組成物を容器から容易に吐出することができる傾向にある。粘度は５０ｍＰａｓ以上であることが好ましく、８０ｍＰａｓ以上であるとより好ましく、１００ｍＰａｓ以上であるとさらに好ましい。また、２０００ｍＰａｓ以下であることが好ましく、１９００ｍＰａｓ以下であるとより好ましく、１８００ｍＰａｓ以下であるとさらに好ましい。 The viscosity of the composition of this embodiment is preferably 50 mPas or more and 2000 mPas or less. When the viscosity is 50 mPas or more, the composition tends to stay on the sponge for a longer period of time when the composition is used for, for example, a dishwashing sponge. Further, when the viscosity is 2000 mPas or less, for example, the composition tends to be easily discharged from the container. The viscosity is preferably 50 mPas or more, more preferably 80 mPas or more, and even more preferably 100 mPas or more. Further, it is preferably 2000 mPas or less, more preferably 1900 mPas or less, and further preferably 1800 mPas or less.
粘度は、粘度計（ＢＲＯＯＫＦＩＥＬＤ社製のＢ型粘度計ＤＶ−Ｉ Ｐｒｉｍｅ、スピンドル種類：ＬＶ−２）を用い、２０℃条件下で測定することができる。具体的には、後述する実施例に記載の方法により測定できる。 The viscosity can be measured under 20 ° C. conditions using a viscometer (B-type viscometer DV-I Prime manufactured by BROOKFIELD, spindle type: LV-2). Specifically, it can be measured by the method described in Examples described later.
本実施形態の組成物の生分解性は、ＯＥＣＤテストガイドラインの３０１Ａによる生分解性であり、易分解性の観点から、生分解度が１０％を超えた日から７０％を超えた日まで１０日未満であることが好ましい。また、生分解度が１０％を超えた日から７０％を超えた日まで８日以内であるとより好ましく、７日以内であるとさらに好ましい。生分解性は、後述する実施例に記載の方法により測定できる。 The biodegradability of the composition of the present embodiment is biodegradability according to 301A of the OECD test guideline, and from the viewpoint of biodegradability, the degree of biodegradability is 10 from the day when it exceeds 10% to the day when it exceeds 70%. It is preferably less than a day. Further, it is more preferably within 8 days from the day when the degree of biodegradation exceeds 10% to the day when the degree of biodegradation exceeds 70%, and further preferably within 7 days. The biodegradability can be measured by the method described in Examples described later.
本実施形態の洗浄剤組成物は、各成分の原料を攪拌機により均一に混合して調製することにより得られる。 The cleaning agent composition of the present embodiment is obtained by uniformly mixing the raw materials of each component with a stirrer.
以下、具体的な実施例及び比較例を挙げて本実施形態をさらに具体的に説明するが、本実施形態はその要旨を超えない限り、これらの実施例と比較例によって何ら限定されるものではない。後述する実施例及び比較例における評価は、以下の方法により評価された。 Hereinafter, the present embodiment will be described in more detail with reference to specific examples and comparative examples, but the present embodiment is not limited to these examples and comparative examples as long as the gist of the present embodiment is not exceeded. Absent. The evaluations in Examples and Comparative Examples described later were evaluated by the following methods.
（評価１）洗浄力
モデル汚れ（総量１００質量％に対して、牛脂１８．８質量％、植物油１４．１質量％、スキムミルク１１．０質量％、小麦粉１８．８質量％、水３７．１質量％、色材０．２質量％）５．０ｇを陶器製皿（玉渕９吋リムミート皿、直径２３．３ｃｍ）にのせ、モデル汚れ皿とした。新品の市販スポンジ（スコッチブライトスポンジたわし、３Ｍ社製）に後述する各洗浄剤組成物２．０ｇと水１５０ｍＬを含ませ、ステンレスボール（直径４５ｃｍ）の中で泡立てた。スポンジに泡をつけた状態で、モデル汚れ皿の表面を時計回りで１０回、反時計回りで１０回洗った。
(Evaluation 1) Detergency model dirt (18.8% by mass of beef fat, 14.1% by mass of vegetable oil, 11.0% by mass of skim milk, 18.8% by mass of flour, 37.1% by mass of water with respect to 100% by mass of total amount. %, Color material 0.2% by mass) 5.0 g was placed on a ceramic dish (Tamabuchi 9-inch rim meat dish, diameter 23.3 cm) to prepare a model dirty dish. A new commercially available sponge (Scotch-Brite sponge scrubbing brush, manufactured by 3M) was impregnated with 2.0 g of each cleaning agent composition described later and 150 mL of water, and whipped in a stainless ball (diameter 45 cm). With the sponge foamed, the surface of the model dirty dish was washed 10 times clockwise and 10 times counterclockwise.
＜評価基準＞
モデル汚れ皿を洗い続け、上記のステンレスボールに入っている洗浄剤組成物と水との水溶液表面の泡がなくなったとき、それまでに洗浄した皿の枚数を確認し、洗浄剤組成物の洗浄力を下記の基準で評価した。
○：５枚以上
△：３〜４枚
×：２枚以下
<Evaluation criteria>
Continue to wash the model dirty dishes, and when the bubbles on the surface of the aqueous solution of the cleaning agent composition and water contained in the above stainless steel bowl disappear, check the number of dishes washed so far and wash the cleaning agent composition. The force was evaluated according to the following criteria.
◯: 5 or more △: 3 to 4 ×: 2 or less
（評価２）水分蒸散増加量
三次元皮膚モデル（Ｊ−ＴＥＣ社製商品名「ＥＰＩＭＯＤＥＬ２４」）を用い、ＯＥＣＤ評価方法（ＴＧ４３９）に準拠し、洗浄剤組成物の刺激性を評価した。具体的には、まず、皮膚モデルを、３７℃、ＣＯ2濃度５〜１０％、湿度９０％以上の環境下で２０〜２４時間の前培養を行った。次に、後述する各洗浄剤組成物を純水で２．０質量％に希釈したものを５０μＬ皮膚モデルに１時間適用したのち、ＰＢＳ＋（ＳＩＧＭＡ ＡＬＤＲＩＣＨ社商品名「Ｄ８６６２」）２５ｍＬで表面を洗浄した。その後、皮膚モデルを３７℃、ＣＯ2濃度５〜１０％、湿度９０％以上環境下で２４時間後培養したあと、恒温恒湿室（温度２３〜２８℃、相対湿度１５〜２５％）にてアサヒバイオメッド社の商品名「ＶＡＰＯＳＣＡＮ」を用いて水分蒸散量（ＴＥＷＬ）を測定した。ブランク（ＰＢＳ＋、ＳＩＧＭＡ ＡＬＤＲＩＣＨ社商品名「Ｄ８６６２」を適用した皮膚モデル）を基準とし、洗浄剤組成物によるＴＥＷＬ増加量を下記式により計算した。
ＴＥＷＬ増加量＝（組成物のＴＥＷＬ測定値のｎ数が３の平均値）−（ブランクのＴＥＷＬ測定値のｎ数が３の平均値）
(Evaluation 2) Increase in water evaporation Using a three-dimensional skin model (trade name "EPIMODEL24" manufactured by J-TEC), the irritation of the cleaning agent composition was evaluated according to the OECD evaluation method (TG439). Specifically, first, the skin model was pre-cultured for 20 to 24 hours in an environment of 37 ° C., a CO 2 concentration of 5 to 10%, and a humidity of 90% or more. Next, each cleaning agent composition described later diluted to 2.0% by mass with pure water was applied to a 50 μL skin model for 1 hour, and then the surface was washed with 25 mL of PBS + (SIGMA ALDRICH trade name “D8662”). did. Then, the skin model is cultured in an environment of 37 ° C., CO 2 concentration 5 to 10%, humidity 90% or more for 24 hours, and then in a constant temperature and humidity chamber (temperature 23 to 28 ° C., relative humidity 15 to 25%). The amount of water evaporation (TEWL) was measured using the trade name "VAPOSCAN" of Asahi Biomed. Based on the blank (PBS +, skin model to which SIGMA ALDRICH trade name "D8662" was applied), the amount of TEWL increase due to the cleansing composition was calculated by the following formula.
TEWL increase amount = (mean value of n number of TEWL measurement values of composition is 3)-(mean value of n number of TEWL measurement value of blank is 3)
＜評価基準＞
上記で計算して得られたＴＥＷＬの増加量から、洗浄剤組成物の水分蒸散増加量を下記の基準で評価した。
◎：ＴＥＷＬの増加量が３．０ｇ／（ｍ2・ｈ）未満
○：ＴＥＷＬの増加量が３．０ｇ／（ｍ2・ｈ）以上４．０ｇ／（ｍ2・ｈ）未満
△：ＴＥＷＬの増加量が４．０ｇ／（ｍ2・ｈ）以上５．０ｇ／（ｍ2・ｈ）未満
×：ＴＥＷＬの増加量が５．０ｇ／（ｍ2・ｈ）以上
<Evaluation criteria>
From the amount of increase in TEWL obtained by the above calculation, the amount of increase in water evaporation of the cleaning agent composition was evaluated according to the following criteria.
⊚: Increase in TEWL is less than 3.0 g / (m 2 · h) ◯: Increase in TEWL is 3.0 g / (m 2 · h) or more and less than 4.0 g / (m 2 · h) Δ: TEWL Increased amount of 4.0 g / (m 2 · h) or more and less than 5.0 g / (m 2 · h) ×: Increased amount of TEWL is 5.0 g / (m 2 · h) or more
（評価３）粘度
洗浄剤組成物を試料として、粘度計（ＢＲＯＯＫＦＩＥＬＤ社製Ｂ型粘度計ＤＶ−Ｉ Ｐｒｉｍｅ、スピンドル種類：ＬＶ−２）を用い、２０℃条件下で粘度を測定した。
(Evaluation 3) Viscosity Using the cleaning agent composition as a sample, the viscosity was measured under 20 ° C. conditions using a viscometer (B-type viscometer DV-I Prime manufactured by BROOKFIELD, spindle type: LV-2).
＜評価基準＞
上記で得られた粘度を、洗浄剤組成物の粘度を下記の基準で評価した。
○：５０ｍＰａｓ以上２，０００ｍＰａｓ未満
△：３０ｍＰａｓ超５０ｍＰａｓ未満、又は２，０００ｍＰａｓ以上５，０００ｍＰａｓ未満
×：３０ｍＰａｓ以下、又は５，０００ｍＰａｓ以上
<Evaluation criteria>
The viscosity obtained above was evaluated based on the following criteria for the viscosity of the cleaning agent composition.
◯: 50 mPas or more and less than 2,000 mPas Δ: More than 30 mPas and less than 50 mPas, or 2,000 mPas or more and less than 5,000 mPas ×: 30 mPas or less, or 5,000 mPas or more
（評価４）低温安定性
洗浄剤組成物を−５℃条件下で１日保管後、２０℃条件下で１時間保管し、その後解凍した。この工程を５回繰り返した。
(Evaluation 4) Low temperature stability The cleaning composition was stored at −5 ° C. for 1 day, then stored at 20 ° C. for 1 hour, and then thawed. This process was repeated 5 times.
＜評価基準＞
上記の工程後の洗浄剤組成物の状態を観察し、洗浄剤組成物の低温安定性を下記の基準で評価した。
○：透明であり、状態の変化がなく、一部濁り又は沈殿が未発生
×：一部濁り又は沈殿が発生
<Evaluation criteria>
The state of the cleaning agent composition after the above step was observed, and the low temperature stability of the cleaning agent composition was evaluated according to the following criteria.
◯: Transparent, no change in state, partial turbidity or precipitation did not occur ×: Partial turbidity or precipitation occurred
（評価５）生分解性
洗浄剤組成物を試料として、ＯＥＣＤテストガイドラインの３０１Ａに従い、生分解度を測定した。
(Evaluation 5) Using the biodegradable cleaning agent composition as a sample, the degree of biodegradation was measured according to 301A of the OECD test guideline.
＜評価基準＞
上記で得られた生分解度から、洗浄剤組成物の生分解性を下記の基準で評価した。
◎：生分解度が１０％を超えた日から７０％を超えた日まで７日以内
○：生分解度が１０％を超えた日から７０％を超えた日まで７日超８日以内
△：生分解度が１０％を超えた日から７０％を超えた日まで８日超１０日以内
×：生分解度が１０％を超えた日から７０％を超えた日まで１０日超経過
<Evaluation criteria>
From the degree of biodegradation obtained above, the biodegradability of the cleaning agent composition was evaluated according to the following criteria.
⊚: Within 7 days from the day when the degree of biodegradation exceeded 10% to the day when the degree of biodegradation exceeded 70% ○: Within 7 days and within 8 days from the day when the degree of biodegradation exceeded 10% to the day when the degree of biodegradation exceeded 70% △ : More than 8 days and less than 10 days from the day when the degree of biodegradation exceeds 10% to the day when the degree of biodegradation exceeds 70% ×: More than 10 days have passed from the day when the degree of biodegradation exceeds 10% to the day when the degree of biodegradation exceeds 70%
以下に、表１に示す組成の内容を示す。
ラウリルエーテル硫酸ナトリウム（ＢＡＳＦジャパン株式会社製商品名「ＴＥＸＡＰＯＮ Ｎ７０」、ラウリルエーテル硫酸ナトリウム含有量７０質量％）
コカミドプロピルベタイン（エボニックジャパン株式会社製商品名「ＴＥＧＯ ＢＥＴＡＩＮ Ｆ５０」、コカミドプロピルベタイン含有量３８質量％）
ラウリルグルコシド（ＢＡＳＦジャパン株式会社製商品名「ＧＬＵＣＯＰＯＮ ＣＳＵＰ６００」、ラウリルグルコシド含有量５０質量％）
２−エチルヘキシル硫酸ナトリウム（ＺＳＣＨＩＭＭＥＲ＆ＳＣＨＷＡＲＺ社製商品名「ＳＵＬＦＥＴＡＭ４１０５」、２−エチルヘキシル硫酸ナトリウム含有量４２質量％）
エタノール（関東化学社製）
安息香酸ナトリウム（関東化学社製）
The contents of the composition shown in Table 1 are shown below.
Sodium lauryl ether sulfate (trade name "TEXAPON N70" manufactured by BASF Japan Co., Ltd., sodium lauryl ether sulfate content 70% by mass)
Cocamidopropyl Betaine (trade name "TEGO BETAIN F50" manufactured by Ebonic Japan Co., Ltd., cocamidopropyl betaine content 38% by mass)
Lauryl glucoside (trade name "GLUCOPON CSUP600" manufactured by BASF Japan Ltd., lauryl glucoside content 50% by mass)
2-Ethylhexyl sodium sulfate (ZSCHIMMER & SCHWARZ product name "SULFETAM4105", 2-ethylhexyl sodium sulfate content 42% by mass)
Ethanol (manufactured by Kanto Chemical Co., Inc.)
Sodium benzoate (manufactured by Kanto Chemical Co., Inc.)
［実施例１〜３、参考例１及び比較例１〜７］
表１に示す組成に従って実施例１〜３、参考例１及び比較例１〜７の洗浄剤組成物を調製し、上述した評価を実施した。結果を表１に併記する。
[Examples 1 to 3, Reference Example 1 and Comparative Examples 1 to 7]
The cleaning composition of Examples 1 to 3, Reference Example 1 and Comparative Examples 1 to 7 was prepared according to the composition shown in Table 1, and the above-mentioned evaluation was carried out. The results are also shown in Table 1.
本発明に係る食器洗い用洗浄剤組成物は、食器洗いの分野で好適に利用できる。 The dishwashing cleaning agent composition according to the present invention can be suitably used in the field of dishwashing.
Claims (2)
前記食器洗い用洗浄剤組成物の総量に対して、前記ポリオキシエチレンアルキルエーテル硫酸塩の含有量と前記コカミドプロピルベタインの含有量との合計量が１０質量％以上２０質量％以下であり、前記２−エチルヘキシル硫酸塩の含有量が０．５質量％以上３．０質量％以下であり、
前記ポリオキシエチレンアルキルエーテル硫酸塩の含有量に対する前記コカミドプロピルベタインの含有量の質量比が、０．３以上１．０以下である、食器洗い用洗浄剤組成物。 A dishwashing cleaning composition containing polyoxyethylene alkyl ether sulfate, cocamidopropyl betaine, alkyl glycoside, 2-ethylhexyl sulfate, and water.
The total amount of the polyoxyethylene alkyl ether sulfate content and the cocamidopropyl betaine content is 10% by mass or more and 20% by mass or less with respect to the total amount of the dishwashing cleaning agent composition. The content of 2-ethylhexyl sulfate is 0.5% by mass or more and 3.0% by mass or less.
The mass ratio of the content of the cocamidopropyl betaine with respect to the content of the polyoxyethylene alkyl ether sulfate is 0.3 to 1.0, dishwashing detergent compositions.
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