JP7446102B2 - Composition for skin or hair and hair treatment method - Google Patents
Composition for skin or hair and hair treatment method Download PDFInfo
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- JP7446102B2 JP7446102B2 JP2019224968A JP2019224968A JP7446102B2 JP 7446102 B2 JP7446102 B2 JP 7446102B2 JP 2019224968 A JP2019224968 A JP 2019224968A JP 2019224968 A JP2019224968 A JP 2019224968A JP 7446102 B2 JP7446102 B2 JP 7446102B2
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- 239000000203 mixture Substances 0.000 title claims description 85
- 238000000034 method Methods 0.000 title claims description 7
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 32
- -1 isononanoic acid ester Chemical class 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 25
- 229930195733 hydrocarbon Natural products 0.000 claims description 22
- 150000002430 hydrocarbons Chemical class 0.000 claims description 22
- 239000004215 Carbon black (E152) Substances 0.000 claims description 16
- 229920001296 polysiloxane Polymers 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 11
- 125000004122 cyclic group Chemical group 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000006096 absorbing agent Substances 0.000 description 25
- GTJOHISYCKPIMT-UHFFFAOYSA-N 2-methylundecane Chemical compound CCCCCCCCCC(C)C GTJOHISYCKPIMT-UHFFFAOYSA-N 0.000 description 11
- SGVYKUFIHHTIFL-UHFFFAOYSA-N Isobutylhexyl Natural products CCCCCCCC(C)C SGVYKUFIHHTIFL-UHFFFAOYSA-N 0.000 description 11
- VKPSKYDESGTTFR-UHFFFAOYSA-N isododecane Natural products CC(C)(C)CC(C)CC(C)(C)C VKPSKYDESGTTFR-UHFFFAOYSA-N 0.000 description 11
- 239000004615 ingredient Substances 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- XMSXQFUHVRWGNA-UHFFFAOYSA-N Decamethylcyclopentasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 XMSXQFUHVRWGNA-UHFFFAOYSA-N 0.000 description 8
- XVAMCHGMPYWHNL-UHFFFAOYSA-N bemotrizinol Chemical compound OC1=CC(OCC(CC)CCCC)=CC=C1C1=NC(C=2C=CC(OC)=CC=2)=NC(C=2C(=CC(OCC(CC)CCCC)=CC=2)O)=N1 XVAMCHGMPYWHNL-UHFFFAOYSA-N 0.000 description 8
- 239000002537 cosmetic Substances 0.000 description 8
- NAGVKZOTMXGCCA-UHFFFAOYSA-N 2-ethylhexyl 7-methyloctanoate Chemical compound CCCCC(CC)COC(=O)CCCCCC(C)C NAGVKZOTMXGCCA-UHFFFAOYSA-N 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- 239000010696 ester oil Substances 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 239000004094 surface-active agent Substances 0.000 description 5
- OBETXYAYXDNJHR-UHFFFAOYSA-N 2-Ethylhexanoic acid Chemical compound CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 description 4
- UIVPNOBLHXUKDX-UHFFFAOYSA-N 3,5,5-trimethylhexyl 3,5,5-trimethylhexanoate Chemical compound CC(C)(C)CC(C)CCOC(=O)CC(C)CC(C)(C)C UIVPNOBLHXUKDX-UHFFFAOYSA-N 0.000 description 4
- XZOYHFBNQHPJRQ-UHFFFAOYSA-N 7-methyloctanoic acid Chemical class CC(C)CCCCCC(O)=O XZOYHFBNQHPJRQ-UHFFFAOYSA-N 0.000 description 4
- 229940100554 isononyl isononanoate Drugs 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 235000019198 oils Nutrition 0.000 description 4
- WAYINTBTZWQNSN-UHFFFAOYSA-N 11-methyldodecyl 3,5,5-trimethylhexanoate Chemical compound CC(C)CCCCCCCCCCOC(=O)CC(C)CC(C)(C)C WAYINTBTZWQNSN-UHFFFAOYSA-N 0.000 description 3
- BRORPGSJXSLXKN-UHFFFAOYSA-N 6-methylheptyl 3,5,5-trimethylhexanoate Chemical compound CC(C)CCCCCOC(=O)CC(C)CC(C)(C)C BRORPGSJXSLXKN-UHFFFAOYSA-N 0.000 description 3
- MHDVGSVTJDSBDK-UHFFFAOYSA-N dibenzyl ether Chemical compound C=1C=CC=CC=1COCC1=CC=CC=C1 MHDVGSVTJDSBDK-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003676 hair preparation Substances 0.000 description 3
- UUGLJVMIFJNVFH-UHFFFAOYSA-N Hexyl benzoate Chemical compound CCCCCCOC(=O)C1=CC=CC=C1 UUGLJVMIFJNVFH-UHFFFAOYSA-N 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- FDATWRLUYRHCJE-UHFFFAOYSA-N diethylamino hydroxybenzoyl hexyl benzoate Chemical compound CCCCCCOC(=O)C1=CC=CC=C1C(=O)C1=CC=C(N(CC)CC)C=C1O FDATWRLUYRHCJE-UHFFFAOYSA-N 0.000 description 2
- SHZIWNPUGXLXDT-UHFFFAOYSA-N ethyl hexanoate Chemical compound CCCCCC(=O)OCC SHZIWNPUGXLXDT-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- PDHSAQOQVUXZGQ-JKSUJKDBSA-N (2r,3s)-2-(3,4-dihydroxyphenyl)-3-methoxy-3,4-dihydro-2h-chromene-5,7-diol Chemical compound C1([C@H]2OC3=CC(O)=CC(O)=C3C[C@@H]2OC)=CC=C(O)C(O)=C1 PDHSAQOQVUXZGQ-JKSUJKDBSA-N 0.000 description 1
- WBYWAXJHAXSJNI-VOTSOKGWSA-M .beta-Phenylacrylic acid Natural products [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 1
- FQNKTJPBXAZUGC-UHFFFAOYSA-N 2-[4-(diethylamino)-2-hydroxybenzoyl]benzoic acid Chemical compound OC1=CC(N(CC)CC)=CC=C1C(=O)C1=CC=CC=C1C(O)=O FQNKTJPBXAZUGC-UHFFFAOYSA-N 0.000 description 1
- JGUMTYWKIBJSTN-UHFFFAOYSA-N 2-ethylhexyl 4-[[4,6-bis[4-(2-ethylhexoxycarbonyl)anilino]-1,3,5-triazin-2-yl]amino]benzoate Chemical compound C1=CC(C(=O)OCC(CC)CCCC)=CC=C1NC1=NC(NC=2C=CC(=CC=2)C(=O)OCC(CC)CCCC)=NC(NC=2C=CC(=CC=2)C(=O)OCC(CC)CCCC)=N1 JGUMTYWKIBJSTN-UHFFFAOYSA-N 0.000 description 1
- NPSJHQMIVNJLNN-UHFFFAOYSA-N 2-ethylhexyl 4-nitrobenzoate Chemical compound CCCCC(CC)COC(=O)C1=CC=C([N+]([O-])=O)C=C1 NPSJHQMIVNJLNN-UHFFFAOYSA-N 0.000 description 1
- 239000004808 2-ethylhexylester Substances 0.000 description 1
- WSSJONWNBBTCMG-UHFFFAOYSA-N 2-hydroxybenzoic acid (3,3,5-trimethylcyclohexyl) ester Chemical compound C1C(C)(C)CC(C)CC1OC(=O)C1=CC=CC=C1O WSSJONWNBBTCMG-UHFFFAOYSA-N 0.000 description 1
- LEEDMQGKBNGPDN-UHFFFAOYSA-N 2-methylnonadecane Chemical compound CCCCCCCCCCCCCCCCCC(C)C LEEDMQGKBNGPDN-UHFFFAOYSA-N 0.000 description 1
- KGKQNDQDVZQTAG-UHFFFAOYSA-N 8-methylnonyl 2,2-dimethylpropanoate Chemical compound CC(C)CCCCCCCOC(=O)C(C)(C)C KGKQNDQDVZQTAG-UHFFFAOYSA-N 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N Benzoic acid Natural products OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- WBYWAXJHAXSJNI-SREVYHEPSA-N Cinnamic acid Chemical compound OC(=O)\C=C/C1=CC=CC=C1 WBYWAXJHAXSJNI-SREVYHEPSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 229930016911 cinnamic acid Natural products 0.000 description 1
- 235000013985 cinnamic acid Nutrition 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 238000001595 flow curve Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000003700 hair damage Effects 0.000 description 1
- 230000003699 hair surface Effects 0.000 description 1
- 229960004881 homosalate Drugs 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 230000037072 sun protection Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Landscapes
- Cosmetics (AREA)
Description
本発明は、皮膚又は毛髪用組成物および当該組成物を使用する毛髪処理方法に関する。 The present invention relates to skin or hair compositions and hair treatment methods using the compositions.
毛髪は、日常生活において日光に曝され、同時に日光に含まれる紫外線の影響を受ける。その影響として、毛髪損傷、ヘアカラー処理が施された毛髪の褪色などが報告されている。また、皮膚も紫外線によって影響を受けることは、広く知られている。 Hair is exposed to sunlight in daily life and is also affected by ultraviolet rays contained in sunlight. It has been reported that the effects include hair damage and fading of color-treated hair. It is also widely known that the skin is also affected by ultraviolet rays.
毛髪についての紫外線対策のため、毛髪化粧料に紫外線吸収剤を配合することが公知となっており、市場を流通する毛髪用商品も存在する。このような商品の中には、皮膚を紫外線Ａ波から守る指標であるＰＡ（Ｐｒｏｔｅｃｔｉｏｎ Ｇｒａｄｅ ｏｆ ＵＶＡ）や、紫外線Ｂ波から守る指標であるＳＰＦ（Ｓｕｎ Ｐｒｏｔｅｃｔｉｏｎ Ｆａｃｔｏｒ）の表示がされているものもあり、この表示により消費者の購買意欲が高まることがある。また、ＰＡ又はＳＰＦが示す皮膚を守る機能をもってして、皮膚用途への適用も可能といえる。 In order to protect hair from ultraviolet rays, it is known to incorporate ultraviolet absorbers into hair cosmetics, and there are also hair products on the market. Some of these products are labeled with PA (Protection Grade of UVA), which is an index to protect the skin from ultraviolet A waves, and SPF (Sun Protection Factor), which is an index to protect the skin from ultraviolet B waves. This display may increase consumers' desire to purchase. Moreover, it can be said that it can be applied to skin applications due to the skin-protecting function exhibited by PA or SPF.
紫外線吸収剤配合の毛髪化粧料は文献にも開示されており、例えば特許文献１には、紫外線吸収剤、揮発性環状シリコーンなどを配合した非水系毛髪化粧料が開示されている。この化粧料は、非水系であることから、水系のものとは異なった感触を毛髪に付与する。ただ、配合される揮発性環状シリコーンは、毛髪化粧料に配合される汎用性が高い成分である上に、化粧品需要量が世界的に増加しているために、その供給が不安視される場合がある。 Hair cosmetics containing ultraviolet absorbers are also disclosed in literature; for example, Patent Document 1 discloses a non-aqueous hair cosmetic containing ultraviolet absorbers, volatile cyclic silicones, and the like. Since this cosmetic is non-aqueous, it imparts a different feel to the hair than aqueous cosmetics. However, the volatile cyclic silicone that is blended is a highly versatile ingredient that is blended into hair cosmetics, and the demand for cosmetics is increasing worldwide, so there are concerns about its supply. There is.
また、特許文献２にも紫外線吸収剤配合の化粧料が開示されており、同文献は、紫外線吸収剤１～２５重量％、エステル油５～７５重量％、揮発性炭化水素５～７５重量％含有するものを開示する（請求項１）。そして、エチルヘキサン酸ＰＰＧ－３ベンジルエーテルなどの特定のエステル油含む化粧料の場合には、紫外線吸収剤の均一な溶解に好ましいとされている（請求項２、段落００１６、００３９）。このように、紫外線吸収剤の溶解性を高める技術提案が望まれる。 Additionally, Patent Document 2 also discloses a cosmetic containing an ultraviolet absorber, which discloses 1 to 25% by weight of ultraviolet absorber, 5 to 75% by weight of ester oil, and 5 to 75% by weight of volatile hydrocarbon. What is contained is disclosed (Claim 1). In the case of cosmetics containing specific ester oils such as ethylhexanoic acid PPG-3 benzyl ether, it is said to be preferable for uniformly dissolving the ultraviolet absorber (Claim 2, Paragraphs 0016 and 0039). Thus, a technical proposal for increasing the solubility of ultraviolet absorbers is desired.
本発明は、上記事情に鑑み、紫外線吸収剤の溶解性に優れる皮膚又は毛髪用組成物、及びこの組成物を使用する毛髪処理方法の提供を目的とする。 In view of the above circumstances, the present invention aims to provide a skin or hair composition that has excellent solubility of ultraviolet absorbers, and a hair treatment method using this composition.
本発明者が紫外線吸収剤を配合する皮膚又は毛髪用組成物について鋭意検討を行った結果、液状のイソノナン酸エステルがエチルヘキサン酸ＰＰＧ－３ベンジルエーテルなどの他のエステル油よりも紫外線吸収剤の溶解に適することを見出し、本発明を完成するに至った。 As a result of intensive studies by the present inventor on skin or hair compositions containing UV absorbers, it was found that liquid isononanoic acid ester has a higher UV absorber content than other ester oils such as ethylhexanoic acid PPG-3 benzyl ether. They found that it is suitable for dissolution and completed the present invention.
すなわち本発明に係る皮膚又は毛髪用組成物は、紫外線吸収剤、揮発性炭化水素、及び液状のイソノナン酸エステルが配合されたことを特徴とする。 That is, the skin or hair composition according to the present invention is characterized by containing an ultraviolet absorber, a volatile hydrocarbon, and a liquid isononanoic acid ester.
本発明に係る皮膚又は毛髪用組成物において、紫外線吸収剤の配合量が１．０質量％以上であると良い。皮膚又は毛髪の紫外線対策には一定量以上の紫外線吸収剤の配合が有効であるから、紫外線吸収剤の配合量が１．０質量％以上であると好適である。 In the skin or hair composition according to the present invention, it is preferable that the amount of the ultraviolet absorber is 1.0% by mass or more. Since it is effective to incorporate a certain amount or more of an ultraviolet absorber to protect skin or hair from ultraviolet rays, it is preferable that the amount of the ultraviolet absorber is 1.0% by mass or more.
本発明に係る皮膚又は毛髪用組成物は、前記紫外線吸収剤として、固形の紫外線吸収剤が配合されたものでも良い。固形の紫外線吸収剤の溶解が不十分であると、この紫外線吸収剤が皮膚表面又は毛髪表面の手触りを粗くし易くするが、液状イソノナン酸エステルの配合が紫外線吸収剤の溶解性を高めるから、その粗さの感触を低減できる。 The skin or hair composition according to the present invention may contain a solid ultraviolet absorber as the ultraviolet absorber. If the solid UV absorber is insufficiently dissolved, this UV absorber tends to roughen the texture of the skin surface or hair surface, but the combination of liquid isononanoic acid ester increases the solubility of the UV absorber. The feeling of roughness can be reduced.
本発明に係る皮膚又は毛髪用組成物において、揮発性炭化水素の配合量が１０質量％以上であると良い。化粧品の汎用原料であるデカメチルシクロペンタシロキサンなどの揮発性環状シリコーンは、化粧品需要量が世界的に増加しているために、供給が不安視される場合があるところ、揮発性炭化水素を１０質量％以上配合すれば、揮発性環状シリコーンの使用量抑制に適する。 In the skin or hair composition according to the present invention, it is preferable that the amount of volatile hydrocarbon added is 10% by mass or more. Volatile cyclic silicones such as decamethylcyclopentasiloxane, which is a general-purpose raw material for cosmetics, may be in short supply due to increasing global demand for cosmetics, but volatile hydrocarbons such as decamethylcyclopentasiloxane If it is blended in an amount of % by mass or more, it is suitable for suppressing the amount of volatile cyclic silicone used.
本発明に係る皮膚又は毛髪用組成物において、高重合メチルポリシロキサンが配合されていても良い。高重合メチルポリシロキサンの配合が紫外線吸収剤の溶解性を低下させることが一般的であるが、その低下を液状イソノナン酸エステルの配合により抑制できる。 In the skin or hair composition according to the present invention, highly polymerized methylpolysiloxane may be blended. Although the blending of highly polymerized methylpolysiloxane generally reduces the solubility of the ultraviolet absorber, this decrease can be suppressed by blending liquid isononanoic acid ester.
本発明に係る皮膚又は毛髪用組成物は、非水系組成物であっても良い。非水系組成物の場合、紫外線吸収剤の溶解性が課題となり易いが、その溶解性は液状イソノナン酸エステルの配合により高まる。 The skin or hair composition according to the present invention may be a non-aqueous composition. In the case of non-aqueous compositions, the solubility of the ultraviolet absorber tends to be an issue, but the solubility can be increased by incorporating liquid isononanoic acid ester.
本発明に係る皮膚又は毛髪用組成物は、粘度が５０ｍＰａ・ｓ以上のものが良い。粘度が５０ｍＰａ・ｓ以上であると、ＰＡ等（ＰＡ又はＳＰＦ）の向上に好適である。 The skin or hair composition according to the present invention preferably has a viscosity of 50 mPa·s or more. A viscosity of 50 mPa·s or more is suitable for improving PA etc. (PA or SPF).
本発明に係る毛髪処理方法は、本発明に係る皮膚又は毛髪用組成物を使用することを特徴とする。 The hair treatment method according to the present invention is characterized by using the skin or hair composition according to the present invention.
本発明に係る皮膚又は毛髪用組成物によれば、紫外線吸収剤と共に液状イソノナン酸エステルが配合されるから、紫外線吸収剤の溶解性が高まり、紫外線吸収剤の配合量の増加が可能となる。 According to the composition for skin or hair according to the present invention, since liquid isononanoic acid ester is blended together with the UV absorber, the solubility of the UV absorber increases, making it possible to increase the amount of the UV absorber blended.
また、本発明に係る毛髪処理方法によれば、液状イソノナン酸エステルの配合により紫外線吸収剤の溶解性が高まった皮膚又は毛髪用組成物を使用するから、紫外線吸収剤の溶解性低下による毛髪の手触りへの影響を低減できる。 Further, according to the hair treatment method of the present invention, since a skin or hair composition in which the solubility of the ultraviolet absorber is increased by blending the liquid isononanoate ester is used, the hair treatment method due to the decrease in solubility of the ultraviolet absorber is The effect on the touch can be reduced.
本発明の実施形態に基づき、本発明を以下に説明する。
本実施形態に係る組成物は、皮膚又は毛髪に塗布して使用されるものであり、水系組成物及び非水系組成物のいずれであっても良い。ここで、「水系」組成物とは、使用時に手などが直接ふれる外相が水相である組成物を意味し、水の配合量が例えば５０質量％以上のものである。また、「非水系」組成物とは、外相が油相である組成物を意味し、非水系組成物は水系組成物とは異なった感触を皮膚又は毛髪に付与する。そして、非水系組成物への水の配合は、水相と油相の分離又は白濁が生じることがあるので、非水系組成物の場合の本実施形態の組成物は、水の配合量が３．０質量％未満が良く、１．０質量％未満が好ましく、０．５質量％未満がより好ましく、０．１質量％未満が更に好ましく、水が無配合がより更に好ましい。
The invention will be described below based on embodiments of the invention.
The composition according to this embodiment is used by applying it to the skin or hair, and may be either an aqueous composition or a non-aqueous composition. Here, the term "aqueous" composition refers to a composition in which the external phase that is directly touched by hands during use is an aqueous phase, and the content of water is, for example, 50% by mass or more. Moreover, a "non-aqueous" composition means a composition whose external phase is an oil phase, and non-aqueous compositions impart a different feel to the skin or hair than aqueous compositions. When water is added to a non-aqueous composition, separation of the aqueous phase and oil phase or cloudiness may occur. It is preferably less than .0% by mass, preferably less than 1.0% by mass, more preferably less than 0.5% by mass, even more preferably less than 0.1% by mass, and even more preferably without water.
本実施形態の組成物は、紫外線吸収剤、揮発性炭化水素、及び液状のイソノナン酸エステルが必須成分として配合される。 The composition of this embodiment contains an ultraviolet absorber, a volatile hydrocarbon, and a liquid isononanoic acid ester as essential components.
本実施形態の組成物に配合される紫外線吸収剤は、油溶性の公知のものであり、例えば、安息香酸エステル系紫外線吸収剤（２－［４－（ジエチルアミノ）－２－ヒドロキシベンゾイル］安息香酸ヘキシルエステルなど）、サリチル酸系紫外線吸収剤（サリチル酸２－エチルヘキシル、サリチル酸ホモメンチルなど）、ケイ皮酸系紫外線吸収剤（パラメトキシケイ皮酸２－エチルヘキシルなど）、２－シアノ－３，３－ジフェニルプロパ－２－エン酸２－エチルへキシルエステル、２，４，６－トリス［４－（２－エチルヘキシルオキシカルボニル）アニリノ］－１，３，５－トリアジン、ビスエチルヘキシルオキシフェノールメトキシフェニルトリアジン、４－ｔｅｒｔ－ブチル－４’－メトキシ－ジベンゾイルメタンが挙げられる。本実施形態の組成物には、一種又は二種以上の紫外線吸収剤が配合され、当該組成物における紫外線吸収剤の配合量は、１．０質量％以上３０質量％未満が良く、２．０質量％以上２５質量％未満が好ましく、３．０質量％以上２０質量％未満がより好ましく、５．０質量％以上１８質量％未満が更に好ましい。紫外線吸収剤の配合量が１．０質量％以上であると、皮膚又は毛髪の紫外線対策に好適であり、配合量が３０質量％未満であると、低コスト化への対応に好適である。 The ultraviolet absorber blended into the composition of the present embodiment is a known oil-soluble one, such as a benzoic acid ester ultraviolet absorber (2-[4-(diethylamino)-2-hydroxybenzoyl]benzoic acid). hexyl ester, etc.), salicylic acid-based UV absorbers (2-ethylhexyl salicylate, homomenthyl salicylate, etc.), cinnamic acid-based UV absorbers (2-ethylhexyl para-methoxycinnamate, etc.), 2-cyano-3,3-diphenylpropyl -2-enoic acid 2-ethylhexyl ester, 2,4,6-tris[4-(2-ethylhexyloxycarbonyl)anilino]-1,3,5-triazine, bisethylhexyloxyphenolmethoxyphenyltriazine, 4- Examples include tert-butyl-4'-methoxy-dibenzoylmethane. The composition of this embodiment contains one or more UV absorbers, and the amount of the UV absorber in the composition is preferably 1.0% by mass or more and less than 30% by mass, and 2.0% by mass or more and less than 30% by mass. It is preferably at least 3.0% by mass and less than 25% by mass, more preferably at least 3.0% by mass and less than 20% by mass, and even more preferably at least 5.0% by mass and less than 18% by mass. When the amount of the ultraviolet absorber is 1.0% by mass or more, it is suitable for protecting the skin or hair from ultraviolet rays, and when the amount is less than 30% by mass, it is suitable for reducing costs.
上記紫外線吸収剤の配合量は、２－［４－（ジエチルアミノ）－２－ヒドロキシベンゾイル］安息香酸ヘキシルエステル、ビスエチルヘキシルオキシフェノールメトキシフェニルトリアジンなどの固形の紫外線吸収剤の配合量を高めても良い。固形の紫外線吸収剤は溶解性が低いのが一般的であるが、その溶解性は液状イソノナン酸エステルの配合により高まる。固形の紫外線吸収剤の一種又は二種以上を本実施形態の組成物に配合すると良く、当該組成物における固形の紫外線吸収剤の配合量は、０．３質量％以上１０質量％未満が良く、０．５質量％以上８．０質量％未満が好ましく、１．０質量％以上７．０質量％未満がより好ましく、２．０質量％以上６．０質量％未満が更に好ましい。固形の紫外線吸収剤の配合量が０．３質量％以上であると、皮膚又は毛髪の紫外線対策に好適であり、配合量が１０質量％未満であると、低コスト化への対応に好適である。 The amount of the above UV absorber may be increased by increasing the amount of solid UV absorber such as 2-[4-(diethylamino)-2-hydroxybenzoyl]benzoic acid hexyl ester, bisethylhexyloxyphenol methoxyphenyl triazine, etc. . Solid ultraviolet absorbers generally have low solubility, but their solubility can be increased by incorporating liquid isononanoic acid ester. One or more solid ultraviolet absorbers may be blended into the composition of this embodiment, and the amount of solid ultraviolet absorbers in the composition is preferably 0.3% by mass or more and less than 10% by mass, It is preferably 0.5% by mass or more and less than 8.0% by mass, more preferably 1.0% by mass or more and less than 7.0% by mass, and even more preferably 2.0% by mass or more and less than 6.0% by mass. When the amount of the solid ultraviolet absorber is 0.3% by mass or more, it is suitable for protecting the skin or hair from UV rays, and when the amount is less than 10% by mass, it is suitable for responding to cost reduction. be.
上記紫外線吸収剤の選定においては、本実施形態の組成物のＰＡを向上させたいときには、紫外線Ａ波の吸収に適した紫外線吸収剤を選定すると良く、ＳＰＦを向上させたいときには、紫外線Ｂ波の吸収に適した紫外線吸収剤を選定すると良い。 When selecting the above-mentioned ultraviolet absorber, if you want to improve the PA of the composition of this embodiment, it is better to select an ultraviolet absorber suitable for absorbing ultraviolet A waves, and if you want to improve the SPF, select an ultraviolet absorber suitable for absorbing ultraviolet B waves. It is best to select a UV absorber that is suitable for absorption.
本実施形態の組成物に配合される揮発性炭化水素は、軽質流動イソパラフィン、イソドデカンといった公知の揮発性炭化水素が挙げられ、常圧における沸点が２６０℃以下のものが良い。本実施形態の組成物には、一種又は二種以上の揮発性炭化水素を配合すると良く、当該組成物における揮発性炭化水素の配合量は、例えば１０質量％以上９０質量％未満が良く、２０質量％以上が好ましく、３０質量％以上がより好ましく、４０質量％以上が更に好ましく、５０質量％以上がより更に好ましい。配合量が１０質量％以上であると、供給が不安視される場合がある揮発性環状シリコーンの使用量削減に適する。 Volatile hydrocarbons to be blended into the composition of this embodiment include known volatile hydrocarbons such as light liquid isoparaffin and isododecane, and preferably have a boiling point of 260° C. or lower at normal pressure. The composition of the present embodiment may preferably contain one or more volatile hydrocarbons, and the amount of volatile hydrocarbons in the composition may be, for example, 10% by mass or more and less than 90% by mass, and 20% by mass or more. It is preferably at least 30% by mass, more preferably at least 40% by mass, even more preferably at least 50% by mass. When the blending amount is 10% by mass or more, it is suitable for reducing the amount of volatile cyclic silicone used, whose supply may be uncertain.
本実施形態の組成物に配合する揮発性炭化水素としてイソドデカンを配合した場合、デカメチルシクロペンタシロキサンを配合する場合よりも、紫外線吸収剤の溶解性が高い。本実施形態の組成物におけるイソドデカンの配合量は、例えば１０質量％以上９０質量％未満が良く、２０質量％以上が好ましく、３０質量％以上がより好ましく、４０質量％以上が更に好ましく、５０質量％以上がより更に好ましい。 When isododecane is blended as the volatile hydrocarbon in the composition of this embodiment, the solubility of the ultraviolet absorber is higher than when decamethylcyclopentasiloxane is blended. The blending amount of isododecane in the composition of the present embodiment is, for example, preferably 10% by mass or more and less than 90% by mass, preferably 20% by mass or more, more preferably 30% by mass or more, still more preferably 40% by mass or more, and 50% by mass. % or more is even more preferable.
本実施形態の組成物に配合される液状のイソノナン酸エステルは、イソノナン酸２－エチルヘキシル、イソノナン酸イソノニル、イソノナン酸イソデシル、イソノナン酸イソトリデシルなどの公知のものが挙げられる（ここで、「液状」のイソノナン酸エステルとは、融点が０℃以下のものである。）。本実施形態の組成物には、一種又は二種以上の液状イソノナン酸エステルを配合すると良く、当該組成物における液状イソノナン酸エステルの配合量は、１．０質量％以上が良く、３．０質量％以上が好ましく、５．０質量％以上がより好ましく、１０質量％以上が更に好ましく、２０質量％以上がより更に好ましい。配合量が１．０質量％であると、紫外線吸収剤の溶解性に好適である。液状イソノナン酸エステルの配合量の上限は、特に限定されないが、例えば５０質量％である。 Examples of the liquid isononanoic acid ester blended in the composition of the present embodiment include known ones such as 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl isononanoate, and isotridecyl isononanoate (herein, "liquid" Isononanoate ester is one with a melting point of 0°C or lower.) The composition of the present embodiment may preferably contain one or more liquid isononanoate esters, and the amount of liquid isononanoate in the composition may preferably be 1.0% by mass or more, and 3.0% by mass. % or more, more preferably 5.0% by mass or more, still more preferably 10% by mass or more, even more preferably 20% by mass or more. A blending amount of 1.0% by mass is suitable for the solubility of the ultraviolet absorber. The upper limit of the amount of liquid isononanoate ester is not particularly limited, but is, for example, 50% by mass.
本実施形態の組成物には、上記に示した必須成分の他、公知の皮膚又は毛髪用組成物に配合されている成分を任意に配合できる。そして、任意に配合される成分としては、例えば、シリコーン、界面活性剤、高級アルコール、炭化水素、ロウ、エステル油、植物油、高分子化合物、湿潤剤、防腐剤、キレート剤、香料、着色剤が挙げられる In addition to the above-mentioned essential components, the composition of the present embodiment may optionally contain components that are included in known skin or hair compositions. Examples of optional ingredients include silicone, surfactant, higher alcohol, hydrocarbon, wax, ester oil, vegetable oil, polymer compound, wetting agent, preservative, chelating agent, fragrance, and coloring agent. mentioned
本実施形態の組成物には、揮発性直鎖状シリコーン（２５℃における動粘度が２ｍｍ２／ｓ程度以下のもの）、揮発性環状シリコーン（オクタメチルシクロテトラシロキサン、デカメチルシクロペンタシロキサンなど）、トリメチコンといった公知の揮発性シリコーンを配合しても良い。一種又は二種以上の揮発性シリコーンを配合すると良く、本実施形態の組成物における揮発性シリコーンの配合量は、例えば５質量％以上３０質量％未満である。 The composition of this embodiment includes volatile linear silicone (having a kinematic viscosity of about 2 mm 2 /s or less at 25°C), volatile cyclic silicone (octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, etc.) Known volatile silicones such as , trimethicone, etc. may also be blended. One or more types of volatile silicone may be blended, and the amount of volatile silicone blended in the composition of this embodiment is, for example, 5% by mass or more and less than 30% by mass.
なお、揮発性環状シリコーンの使用量を抑える観点から、本実施形態の組成物においては、揮発性環状シリコーンよりも揮発性炭化水素の配合量が多いことが好ましく、揮発性環状シリコーンを無配合とするのがより好ましい。 In addition, from the viewpoint of suppressing the amount of volatile cyclic silicone used, in the composition of this embodiment, it is preferable that the amount of volatile hydrocarbon blended is larger than that of volatile cyclic silicone. It is more preferable to do so.
本実施形態の組成物には、皮膚又は毛髪の感触を改善する観点から、平均重合度が６５０以上のメチルポリシロキサンである高重合メチルポリシロキサンを配合すると良い。高重合メチルポリシロキサンの配合が紫外線吸収剤の溶解性を低下させることが一般的であるが、その低下を液状イソノナン酸エステルの配合により抑制できる。本実施形態の組成物における高重合メチルポリシロキサンの配合量は、例えば１．０質量％以上１０質量％未満である。 From the viewpoint of improving the feel of the skin or hair, it is preferable to mix highly polymerized methylpolysiloxane, which is a methylpolysiloxane with an average degree of polymerization of 650 or more, in the composition of the present embodiment. Although the blending of highly polymerized methylpolysiloxane generally reduces the solubility of the ultraviolet absorber, this decrease can be suppressed by blending liquid isononanoic acid ester. The blending amount of highly polymerized methylpolysiloxane in the composition of this embodiment is, for example, 1.0% by mass or more and less than 10% by mass.
本実施形態の組成物には、ノニオン界面活性剤、カチオン界面活性剤、アニオン界面活性剤、及び両性界面活性剤から選ばれた一種又は二種以上の公知の界面活性剤を配合しても良い。 The composition of this embodiment may contain one or more known surfactants selected from nonionic surfactants, cationic surfactants, anionic surfactants, and amphoteric surfactants. .
本実施形態の組成物が水系組成物の場合、揮発性炭化水素、液状イソノナン酸エステルなどで構成される油相を分散させる必要が生じるため、非水系組成物に比べて界面活性剤の配合量を多くする必要がある。そして、本実施形態の組成物が水系である場合の配合量は、油相を分散させる量として適宜設定されるべきであるが、例えば３．０質量％以上である。 When the composition of this embodiment is an aqueous composition, it is necessary to disperse an oil phase composed of volatile hydrocarbons, liquid isononanoic acid ester, etc. It is necessary to increase the number of When the composition of the present embodiment is aqueous, the blending amount should be appropriately set as the amount for dispersing the oil phase, and is, for example, 3.0% by mass or more.
また、本実施形態の組成物が非水系の場合、水系の場合よりも界面活性剤の配合量を少なく設定すると良く、当該非水系組成物における界面活性剤の配合量は、例えば０．５質量％以下である。界面活性剤の配合量を少なく設定すると、紫外線吸収剤の溶解性が低くなると考えられるが、その溶解性の低下を液状イソノナン酸エステルの配合が抑える。 In addition, when the composition of the present embodiment is non-aqueous, it is preferable to set the amount of surfactant to be smaller than when it is aqueous, and the amount of surfactant in the non-aqueous composition is, for example, 0.5 mass. % or less. If the amount of surfactant to be blended is set low, the solubility of the ultraviolet absorber is thought to decrease, but the drop in solubility is suppressed by blending liquid isononanoic acid ester.
本実施形態の組成物の粘度は、５０ｍＰａ・ｓ以上５０００ｍＰａ・ｓ未満が良く、１００ｍＰａ・ｓ以上３０００ｍＰａ・ｓ未満が好ましく、１５０ｍＰａ・ｓ以上１０００ｍＰａ・ｓ未満がより好ましく、２００ｍＰａ・ｓ以上８００ｍＰａ・ｓ未満が更に好ましく、２００ｍＰａ・ｓ以上６００ｍＰａ・ｓ未満がより更に好ましい。粘度が５０ｍＰａ・ｓ以上であると、皮膚又は毛髪の紫外線対策と、手を用いて本実施形態の組成物を塗布する際のハンドリング性に適し、粘度が５０００ｍＰａ・ｓ未満であると、毛髪内部への浸透性に適する。 The viscosity of the composition of the present embodiment is preferably 50 mPa·s or more and less than 5000 mPa·s, preferably 100 mPa·s or more and less than 3000 mPa·s, more preferably 150 mPa·s or more and less than 1000 mPa·s, and 200 mPa·s or more and less than 1000 mPa·s. It is more preferably less than 200 mPa·s, and even more preferably 200 mPa·s or more and less than 600 mPa·s. When the viscosity is 50 mPa·s or more, it is suitable for protection against UV rays on the skin or hair and for ease of handling when applying the composition of this embodiment by hand. Suitable for permeability to.
なお、本実施形態の組成物の上記粘度は、レオメーター〔例えば、ＨＡＡＫＥ社製のレオメーター「Ｒｈｅｏ Ｓｔｒｅｓｓ ６０００（商品名）〕を使用し、測定温度：２５℃、コーンプレートセンサーの直径：３５ｍｍ、コーンプレートセンサーの傾斜角：２°せん断速度ｄγ／ｄｔ：３６ｓ－１の条件で、定常フローカーブモードにおいて測定される値である。 The above-mentioned viscosity of the composition of the present embodiment is measured using a rheometer [for example, Rheo Stress 6000 (trade name) manufactured by HAAKE] at a measurement temperature of 25° C. and a cone plate sensor diameter of 35 mm. , the inclination angle of the cone plate sensor: 2°, and the shear rate dγ/dt: 36 s −1 , and the value measured in the steady flow curve mode.
本実施形態の組成物の粘度を高める必要がある場合、粘度を高めるための一般的な手法をとると良い。例えば、成分の追加（当該成分を、便宜上「追加成分」という。）によって粘度を高めるには、その成分の配合前の組成物より粘度の高いものを追加成分に採用する。追加成分は、エステル油などの単一成分のみに限らず、高重合メチルポリシロキサンのデカメチルシクロペンタシロキサン溶液や高重合メチルポリシロキサンのイソドデカン溶液といった複数成分からなるものも該当する。 If it is necessary to increase the viscosity of the composition of this embodiment, a general method for increasing the viscosity may be used. For example, to increase the viscosity by adding a component (for convenience, this component is referred to as an "additional component"), the additional component is one that has a higher viscosity than the composition before the component is blended. The additional component is not limited to a single component such as ester oil, but also includes a plurality of components such as a decamethylcyclopentasiloxane solution of highly polymerized methylpolysiloxane and an isododecane solution of highly polymerized methylpolysiloxane.
本実施形態の組成物が非水系の組成物である場合、粘度を高めると、ＰＡ等が向上することを確認している。したがって、配合する揮発性炭化水素がデカメチルシクロペンタシロキサンよりも動粘度が低いものであっても、本実施形態の組成物の粘度を高めることで、ＰＡ等の低下抑制又は向上が可能となる（ここで動粘度は、ＪＩＳ Ｋ－２２８３により測定される値である。）。 When the composition of this embodiment is a non-aqueous composition, it has been confirmed that increasing the viscosity improves PA and the like. Therefore, even if the volatile hydrocarbon to be blended has a lower kinematic viscosity than decamethylcyclopentasiloxane, by increasing the viscosity of the composition of this embodiment, it is possible to suppress or improve the PA etc. (The kinematic viscosity here is a value measured according to JIS K-2283.)
本実施形態の組成物は、皮膚用又は毛髪用のものであり、紫外線から受ける影響を抑えるため、皮膚又は毛髪に塗布して用いると良い。例えば、本実施形態の組成物を使用して毛髪処理する場合、組成物を液状の剤型とし、毛髪に噴霧又は手で塗布した後、必要に応じて温風で乾燥させ、洗い流さない使用態様が挙げられる。 The composition of this embodiment is for skin or hair, and is preferably applied to the skin or hair in order to suppress the effects of ultraviolet rays. For example, when treating hair using the composition of the present embodiment, the composition is in a liquid form, and after being sprayed or applied to the hair by hand, it is optionally dried with warm air and used without being washed away. can be mentioned.
以下、実施例等に基づき本発明を詳述するが、この実施例の記載に基づいて本発明が限定的に解釈されるものではない。 The present invention will be described in detail below based on Examples, but the present invention should not be interpreted as being limited based on the description of the Examples.
実施例、比較例、参考例の非水系組成物を調製し、外観の確認、粘度測定、ＳＰＦ測定、ＵＶＡＰＦ測定のいずれかを行った。詳細は、次の通りである。 Non-aqueous compositions of Examples, Comparative Examples, and Reference Examples were prepared, and either the appearance was confirmed, the viscosity was measured, the SPF was measured, or the UVAPF was measured. Details are as follows.
（非水系組成物）
実施例１ａ～１ｂ、比較例１ａ～１ｂ、実施例２ａ～２ｄ、比較例２の非水系組成物を、ビスエチルヘキシルオキシフェノールメトキシフェニルトリアジン、パラメトキシケイ皮酸２－エチルヘキシル、イソノナン酸２－エチルヘキシル、イソノナン酸イソノニル、イソノナン酸イソデシル、イソノナン酸イソトリデシル、ネオペンタン酸イソデシル、エチルヘキサン酸ＰＰＧ－３ベンジルエーテル、イソドデカン、デカメチルシクロペンタシロキサン、高重合メチルポリシロキサンを使用して製造した。配合した成分、その配合量（配合量単位：質量部）の詳細は、表１～２に記載の通りとした。
(Non-aqueous composition)
The nonaqueous compositions of Examples 1a to 1b, Comparative Examples 1a to 1b, Examples 2a to 2d, and Comparative Example 2 were mixed with bisethylhexyloxyphenolmethoxyphenyltriazine, 2-ethylhexyl paramethoxycinnamate, and 2-ethylhexyl isononanoate. , isononyl isononanoate, isodecyl isononanoate, isotridecyl isononanoate, isodecyl neopentanoate, PPG-3 benzyl ether of ethylhexanoate, isododecane, decamethylcyclopentasiloxane, and highly polymerized methylpolysiloxane. The details of the blended components and their blended amounts (blended amount unit: parts by mass) were as shown in Tables 1 and 2.
実施例３ａ～３ｃの非水系組成物を、ビスエチルヘキシルオキシフェノールメトキシフェニルトリアジン、２－［４－（ジエチルアミノ）－２－ヒドロキシベンゾイル］安息香酸ヘキシルエステル、パラメトキシケイ皮酸２－エチルヘキシル、イソノナン酸２－エチルヘキシル、イソドデカン、高重合メチルポリシロキサンを使用して製造した。配合した成分、その配合量（配合量単位：質量部）の詳細は、表３に記載の通りとした。 The non-aqueous compositions of Examples 3a to 3c were combined with bisethylhexyloxyphenolmethoxyphenyltriazine, 2-[4-(diethylamino)-2-hydroxybenzoyl]benzoic acid hexyl ester, paramethoxycinnamate 2-ethylhexyl, and isononanoic acid. It was manufactured using 2-ethylhexyl, isododecane, and highly polymerized methylpolysiloxane. The details of the blended components and their blending amounts (blended amount unit: parts by mass) were as shown in Table 3.
実施例４ａ～４ｂ、参考例４ａ～４ｂの非水系組成物を、ビスエチルヘキシルオキシフェノールメトキシフェニルトリアジン、パラメトキシケイ皮酸２－エチルヘキシル、イソノナン酸２－エチルヘキシル、イソドデカン（３７．８℃での動粘度：１．３５ｍｍ２／ｓ）、高重合メチルポリシロキサン及びイソドデカンの混合物（Ｂ型粘度計、２５℃、ローター回転数６０ｒｐｍでの計測開始から６０秒後の粘度測定値：２７００ｍＰａ・ｓ）、重質流動イソパラフィン、デカメチルシクロペンタシロキサンを使用して製造した。配合した成分、その配合量（配合量単位：質量部）の詳細は、表４に記載の通りとした。 The non-aqueous compositions of Examples 4a to 4b and Reference Examples 4a to 4b were mixed with bisethylhexyloxyphenolmethoxyphenyltriazine, 2-ethylhexyl paramethoxycinnamate, 2-ethylhexyl isononanoate, isododecane (dried at 37.8°C). Viscosity: 1.35 mm 2 /s), a mixture of highly polymerized methylpolysiloxane and isododecane (B-type viscometer, 25 ° C., 60 seconds after the start of measurement at a rotor rotation speed of 60 rpm, viscosity measurement value: 2700 mPa s), Manufactured using heavy fluid isoparaffin, decamethylcyclopentasiloxane. The details of the blended components and their blending amounts (blended amount unit: parts by mass) are as shown in Table 4.
（外観）
調製した各非水系組成物の外観について、調製直後、調製してから２～３時間経過後、－５℃・１カ月保管後、－１０℃・１カ月保管後のいずれかを確認した。なお、外観の確認においては、分離又は析出が認められる場合があり、分離及び析出が相対的に少ないときに、紫外線吸収剤の溶解性が高いと判断される。また、紫外線吸収剤の溶解性が低い場合、保管温度が低い程、その吸収剤の分離又は析出が生じやすい。
(exterior)
The appearance of each of the prepared non-aqueous compositions was checked either immediately after preparation, 2 to 3 hours after preparation, after storage at -5°C for 1 month, or after storage at -10°C for 1 month. In addition, when checking the appearance, separation or precipitation may be observed, and when there is relatively little separation or precipitation, it is determined that the ultraviolet absorbent has high solubility. Furthermore, when the solubility of the ultraviolet absorber is low, the lower the storage temperature, the more likely the absorber will separate or precipitate.
（粘度）
実施例４ａ～４ｂ、参考例４ａ～４ｂの非水系組成物の粘度を、ＨＡＡＫＥ社製のレオメーター「Ｒｈｅｏ Ｓｔｒｅｓｓ ６０００」を使用し、測定温度：２５℃、コーンプレートセンサーの直径：３５ｍｍ、コーンプレートセンサーの傾斜角：２°せん断速度ｄγ／ｄｔ：３６ｓ－１の条件で測定した。
(viscosity)
The viscosity of the nonaqueous compositions of Examples 4a to 4b and Reference Examples 4a to 4b was measured using a rheometer "Rheo Stress 6000" manufactured by HAAKE, measuring temperature: 25 ° C., diameter of cone plate sensor: 35 mm, cone Measurement was carried out under the conditions of plate sensor inclination angle: 2° and shear rate dγ/dt: 36 s −1 .
（ＳＰＦ、ＵＶＡＰＦ）
実施例４ａ～４ｂ、参考例４ａ～４ｂの非水系組成物について、ｉｎ ｖｉｔｒｏ試験方法によるＳＰＦ、ＵＶＡＰＦ（ＵＶＡＰＦ：ＰＡのレベルを定めるための指標）測定を、非水系組成物を０．０３２５ｇ塗布したＨｅｌｉｏｓｃｒｅｅｎ社製「ＨＥＬＩＯＰＬＡＴＥ」を対象とし、Ｌａｂｓｐｈｅｒｅ社製ＳＰＦアナライザー「ＵＶ２０００Ｓ」を使用して行った。
(SPF, UVAPF)
Regarding the non-aqueous compositions of Examples 4a to 4b and Reference Examples 4a to 4b, SPF and UVAPF (UVAPF: an index for determining the level of PA) were measured by an in vitro test method by applying 0.0325 g of the non-aqueous composition. The test was conducted using the SPF analyzer "UV2000S" manufactured by Labsphere, using "HELIOPLATE" manufactured by Helioscreen.
下記表１に、実施例１ａ～１ｂ、比較例１ａ～１ｂに配合した成分、その配合量、外観を示す（表中の「―」は、成分無配合、又は、外観未確認を意味する。）。液状イソノナン酸エステル（イソノナン酸２－エチルヘキシル、イソノナン酸イソノニル）及び揮発性炭化水素（イソドデカン）を配合した実施例１ａ～１ｂは、液状イソノナン酸エステル又は液状炭化水素を欠く比較例１ａ～１ｂのような分離又は析出が確認されず、固形の紫外線吸収剤（ビスエチルヘキシルオキシフェノールメトキシフェニルトリアジン）の溶解性が比較例１ａ～１ｂに比べて優れていたことを確認できる。 Table 1 below shows the ingredients blended in Examples 1a to 1b and Comparative Examples 1a to 1b, their blended amounts, and their appearance ("-" in the table means that the ingredients were not blended or the appearance was not confirmed.) . Examples 1a-1b, which were formulated with a liquid isononanoic acid ester (2-ethylhexyl isononanoate, isononyl isononanoate) and a volatile hydrocarbon (isododecane), were similar to Comparative Examples 1a-1b, which lacked a liquid isononanoic acid ester or a liquid hydrocarbon. No separation or precipitation was observed, confirming that the solubility of the solid ultraviolet absorber (bisethylhexyloxyphenolmethoxyphenyltriazine) was superior to Comparative Examples 1a and 1b.
下記表２に、実施例２ａ～２ｄ、比較例２に配合した成分、その配合量、外観を示す（表中の「―」は、成分無配合、又は、外観未確認を意味する。）。液状イソノナン酸エステル（イソノナン酸２－エチルヘキシル、イソノナン酸イソノニル、イソノナン酸イソデシル、イソノナン酸イソトリデシル）及び揮発性炭化水素（イソドデカン）を配合した実施例２ａ～１ｄは、液状炭化水素を欠く比較例２のような析出が確認されず、固形の紫外線吸収剤（ビスエチルヘキシルオキシフェノールメトキシフェニルトリアジン）の溶解性が比較例２よりも優れていたことを確認できる。 Table 2 below shows the ingredients blended in Examples 2a to 2d and Comparative Example 2, their blended amounts, and their appearance ("-" in the table means that the ingredients were not blended or the appearance was not confirmed). Examples 2a to 1d, in which liquid isononanoic acid esters (2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl isononanoate, isotridecyl isononanoate) and volatile hydrocarbon (isododecane) were blended, were compared to Comparative Example 2, which lacked liquid hydrocarbon. No such precipitation was observed, confirming that the solubility of the solid ultraviolet absorber (bisethylhexyloxyphenolmethoxyphenyltriazine) was superior to Comparative Example 2.
下記表３に、実施例３ａ～３ｃに配合した成分、その配合量、外観を示す（表中の「―」は、成分無配合を意味する。）。液状イソノナン酸エステル（イソノナン酸２－エチルヘキシル）及び揮発性炭化水素（イソドデカン）を配合した実施例３ａ～３ｃは、固形の紫外線吸収剤（ビスエチルヘキシルオキシフェノールメトキシフェニルトリアジン、２－［４－（ジエチルアミノ）－２－ヒドロキシベンゾイル］安息香酸ヘキシルエステル）の析出、分離が認められなかった。 Table 3 below shows the ingredients blended in Examples 3a to 3c, their blended amounts, and their appearance ("-" in the table means no ingredients were blended). Examples 3a to 3c containing a liquid isononanoic acid ester (2-ethylhexyl isononanoate) and a volatile hydrocarbon (isododecane) contain solid ultraviolet absorbers (bisethylhexyloxyphenolmethoxyphenyltriazine, 2-[4-(diethylamino) ) -2-Hydroxybenzoyl]benzoic acid hexyl ester) precipitation and separation were not observed.
下記表４に、実施例４ａ～４ｂ、参考例４ａ～４ｃに配合した成分、その配合量、外観、粘度、ＳＰＦ、ＵＶＡＰＦを示す（表中の「―」は、成分無配合を意味する。）。実施例４ａ～４ｂ間での比較、参考例４ａ～４ｃでの比較において、粘度が高まるほど、ＳＰＦ又はＵＶＡＰＦの値が向上したことを確認できる。 Table 4 below shows the ingredients blended in Examples 4a to 4b and Reference Examples 4a to 4c, their blended amounts, appearance, viscosity, SPF, and UVAPF ("-" in the table means no ingredients were blended. ). In the comparison between Examples 4a and 4b and the comparison between Reference Examples 4a and 4c, it can be confirmed that the higher the viscosity, the higher the SPF or UVAPF value.
Claims (7)
揮発性環状シリコーンが無配合、又は、揮発性環状シリコーンよりも前記揮発性炭化水素の配合量が多く、
水が無配合、又は、水の配合量が３．０質量％未満であり、
前記紫外線吸収剤の配合量が１．０質量％以上であることを特徴とする
皮膚又は毛髪用組成物。 Contains ultraviolet absorber, volatile hydrocarbon, and liquid isononanoic acid ester ,
Volatile cyclic silicone is not blended, or the volatile hydrocarbon is blended in a larger amount than the volatile cyclic silicone,
No water is added, or the amount of water added is less than 3.0% by mass,
A composition for skin or hair, characterized in that the amount of the ultraviolet absorber is 1.0% by mass or more .
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