JP4199178B2 - Solid cosmetics - Google Patents

Description

  The present invention relates to a solid cosmetic, and more particularly to a solid cosmetic using a transparent base material containing hydroxystearic acid and an oil.

  For lip balm, lip gloss, lipstick, eye shadow, and the like, solid cosmetics with excellent transparency are demanded for the purpose of beautiful appearance, transparent finish when applied, and vivid color development. Conventionally, various transparent base materials used in such solid cosmetics have been proposed in which hydroxystearic acid and an oil are blended.

  For example, JP-A-1-163111 discloses a solid cosmetic using a transparent base material having a refractive index of 1.45 to 1.54 made of 12-hydroxystearic acid and an oil component. Japanese Unexamined Patent Publication No. 63-119405 discloses a transparent solid cosmetic containing 12-hydroxystearic acid, a polyhydric alcohol ester of rosin, and a polyhydric alcohol side chain fatty acid partial ester or polyhydric alcohol unsaturated fatty acid partial ester. Is disclosed.

  JP-A-4-91010 discloses a transparent solid cosmetic containing 12-hydroxystearic acid, a transparent liquid oily component having a hydroxyl value of 120 or less, and methylphenylpolysiloxane. Glycerin fatty acid ester and the like.

  In JP-A-6-55057, a transparent gel composition containing 12-hydroxystearic acid, castor oil ethylene oxide adduct, and castor oil fatty acid ester in a predetermined ratio is used as a transparent base material for cosmetics. The technique used is disclosed, and as the castor oil fatty acid ester, an ester of a castor oil fatty acid and an alcohol or glycol having 1 to 30 carbon atoms is used.

  JP-A-2001-172128 discloses a transparent solid cosmetic containing 12-hydroxystearic acid, a special rosin ester and a polyhydric alcohol fatty acid ester or an ester composed of rosin, a fatty acid and a polyhydric alcohol. Yes.

Japanese Patent Application Laid-Open No. 2004-131457 discloses a transparent substrate containing hydroxystearic acid and / or dextrin fatty acid ester, polyether-modified silicone and / or long-chain alkyl-containing polyoxyalkylene-modified organopolysiloxane, and a liquid oil component Is disclosed, and the use of polyglycerin fatty acid ester as a surfactant as the oil component or additive is described.
JP-A-1-163111 JP 63-119405 A JP-A-4-91010 JP-A-6-55057 JP 2001-172128 A JP 2004-131457 A

  As described above, various transparent base materials using hydroxystearic acid as a solidifying agent (gelling agent) are known. However, when the oil component is actually solidified using this solidifying agent, the transparency of the solidified product is reduced. It may not always be sufficient, and further improvement in transparency is desired.

  The present invention has been made in view of the above points, and by improving the transparency of a transparent base material using hydroxystearic acid as a solidifying agent, commercial value such as beauty of appearance and finish after application, etc. An object of the present invention is to provide a solid cosmetic that can increase the aging.

  The present inventors are diligently considering the above problems, and by adding polyglyceryl polyricinoleate to a transparent base material using hydroxystearic acid as a solid agent, the transparency of the base material is dramatically increased. As a result, the present invention has been completed.

  That is, the solid cosmetic according to the present invention contains hydroxystearic acid, polyglyceryl polyricinoleate, and oil.

  In addition to the above components, the solid cosmetic according to the present invention may contain water and / or a polyhydric alcohol. Since this type of solid cosmetic is oily, it is difficult to uniformly disperse aqueous components such as water, but in the present invention, the above-mentioned polyglyceryl polyricinoleate also acts as a nonionic surfactant, Water and polyhydric alcohol can be uniformly dispersed.

  The solid cosmetic according to the present invention may further contain capsules or particles, whereby a solid cosmetic excellent in visual effect is obtained.

  When the solid cosmetic of the present invention is blended with polyglyceryl polyricinoleate, a highly transparent base material is obtained, so that a solid cosmetic with excellent transparency is obtained, and the appearance is also beautiful, Product value such as a transparent finish and vivid color development can be enhanced.

  Hereinafter, the present invention will be described in more detail.

  In the solid cosmetic of the present invention, a material obtained by blending hydroxystearic acid, polyglyceryl polyricinoleate and oil as a transparent base material is used.

  The hydroxy stearic acid acts as a solidifying agent (gelling agent) for solidifying (gelling) the oil, and usually 12-hydroxy stearic acid is used. 12-hydroxystearic acid is a saturated fatty acid having 18 carbon atoms having a hydroxyl group at the 12-position carbon, and is generally obtained by reducing ricinoleic acid obtained from castor oil or the like.

  The amount of hydroxystearic acid is preferably 1 to 40% by weight, more preferably 2 to 20% by weight, based on the total amount of the solid cosmetic. If the amount is too small, the cosmetic is difficult to solidify, whereas if it is too large, the transparency of the cosmetic is poor.

  The polyglyceryl polyricinoleate is an ester of condensed ricinoleic acid and polyglycerin. For example, condensed ricinoleic acid condensed with 2 to 30 ricinoleic acid and hexaglyceryl polyglycinoleate which is a monoester of hexaglycerin or decaglycerin, polyricinoleic acid decaglyceryl, etc., `` NIKKOL Hexaglyn PR-15 '', "NIKKOL Decaglyn PR-20" (both made by Nikko Chemicals) is commercially available.

  The blending amount of polyglyceryl polyricinoleate is preferably 1 to 40% by weight, more preferably 2 to 20% by weight based on the total amount of the solid cosmetic. If the blending amount is too small, the effect of improving the transparency is small. Conversely, if the blending amount is too large, bitterness is felt when the cosmetic is applied to the lips.

The oil component is not particularly limited as long as it can be blended with hydroxystearic acid and polyglyceryl polyricinoleate to obtain a transparent base material, and various oil components usually blended in cosmetics can be used. In particular,
(1) Hydrocarbons such as liquid paraffin, liquid isoparaffin, squalane, α-olefin oligomer, hydrogenated polydecene,
(2) Avocado oil, almond oil, olive oil, cucumber nut oil, grape seed oil, corn oil, sasanqua oil, safflower oil, persic oil, pistachio seed oil, castor oil, sunflower oil, hazelnut oil, macadamia nut oil, meadow foam oil , Vegetable oils such as rosehip oil, jojoba oil,
(3) Propylene glycol dicaprylate, propylene glycol dicaprate, propylene glycol diisostearate, neopentyl glycol dicaprate, neopentyl glycol di-2-ethylhexanoate, (hydrogenated rosin / diisostearate) glyceryl, tri-2-ethylhexanoic acid Polyhydric alcohol fatty acid esters such as glyceryl, tri (capryl / capric acid) glyceryl, tri-2-ethylhexanoic acid trimethylolpropane, triisostearic acid trimethylolpropane, tetra-2-ethylhexanoic acid pentaerythritol,
(4) Polybasic acid esters such as di-2-ethylhexyl succinate, diisostearyl malate, di-2-ethylhexyl adipate, di-2-heptylundecyl adipate, tri-2-ethylhexyl citrate,
(5) Fatty acid esters such as cetyl 2-ethylhexanoate and isonononyl isononanoate,
(6) Higher alcohols such as octyldodecanol,
(7) Lanolins such as liquid lanolin and acetic acid liquid lanolin;
(8) Silicones such as methylpolysiloxane, methylphenylpolysiloxane, methylcyclopolysiloxane,
(9) Glycerin fatty acid esters such as glyceryl monoisostearate and glyceryl diisostearate,
(10) Polyglycerin fatty acid esters such as diglyceryl monoisostearate, diglyceryl diisostearate, diglyceryl triisostearate, diglyceryl tetraisostearate, decaglyceryl pentaisostearate, decaglyceryl nonaisostearate, decaglyceryl decaisostearate ,
(11) Polyoxyethylene glycerin fatty acid esters such as polyisoethylene glyceryl monoisostearate and polyoxyethylene glyceryl triisostearate,
These may be used alone or in combination of two or more.

  Among these, diglyceryl triisostearate, (hydrogenated rosin / diisostearic acid) glyceryl, tri-2-ethylhexanoic acid trimethylolpropane, tetra-2-ethylhexanoic acid pentaerythritol, methylphenylpolysiloxane, castor oil, liquid lanolin And at least one oil selected from the group consisting of acetic acid liquid lanolin is preferably used.

  More specifically, diglyceryl triisostearate and / or (hydrogenated rosin / diisostearic acid) glyceryl is used as the main oil (the oil with the highest blending amount) in terms of excellent transparency and stick moldability. It is preferable.

  In addition to the main oil component, at least one selected from the group consisting of tri-2-ethylhexanoic acid trimethylolpropane, tetra-2-ethylhexanoic acid pentaerythritol, and methylphenylpolysiloxane is used to improve usability (extensibility). It is preferable to add it as an oil component for improvement.

  In addition to the main oil, it is preferable to add at least one selected from the group consisting of castor oil, liquid lanolin, and acetic acid liquid lanolin as an oil for improving the appearance by reducing the size of the gel. Moreover, it is more preferable to use the oil for improving the appearance and the oil for improving the feeling of use together with the main oil.

  In addition, it is preferable that the compounding quantity of an oil component is 20 to 98 weight% in solid cosmetics whole quantity, More preferably, it is 60 to 96 weight%.

  The transparent substrate is obtained by mixing the above-described components and, if necessary, heating and dissolving. Here, the transparency of the transparent substrate is determined by filling a glass cell with an optical path length of 10 mm and cooling and solidifying it at room temperature for 30 minutes, and then placing the glass cell on the paper surface composed of 12-point characters. It is preferable that the character on the other side can be discriminated through the optical path when placed down.

  The solid cosmetic of the present invention may be the transparent base material itself as described above, or may be formed by blending various additives with the transparent base material.

  For example, water and a polyhydric alcohol can be mix | blended with the solid cosmetics of this invention. That is, in the present invention, the polyglyceryl polyricinoleate acts not only as a transparency improving component but also as a nonionic surfactant in its structure, so that hydrophilic components such as water and polyhydric alcohol are uniformly dispersed. Can be made. And when mix | blending water, the addition of a water-soluble medicinal component becomes possible. In addition, by blending polyhydric alcohol, it is possible to improve the feeling of use by improving the slipperiness at the time of applying the solid cosmetic, and also to improve the transparency. In addition, when mix | blending water, it is preferable that the compounding quantity is 0.1 to 10 weight% in solid cosmetics whole quantity. When polyhydric alcohol is blended, the blending amount is preferably 0.1 to 10% by weight based on the total amount of the solid cosmetic.

  The polyhydric alcohol is not particularly limited, and examples thereof include propylene glycol, dipropylene glycol, 1,3-butylene glycol, 1,2-pentanediol, 1,2-hexanediol, and 1,2-octane. Examples include diol, polyethylene glycol, polypropylene glycol, glycerin, polyglycerin (for example, diglycerin, triglycerin, etc.).

  Moreover, the solid cosmetics of this invention can also be made to contain a capsule or particle | grains, and this can improve the visual effect of solid cosmetics. Such capsules or particles need to have a certain particle size for the purpose of improving the visual effect. For example, those having an average particle size of 100 to 3000 μm are preferably used.

  Examples of such capsules include those in which agar, alginate, collagen, gelatin, cellulose and the like are used as a film, and various components such as medicinal components (for example, vitamins) are encapsulated therein. Examples of the particles include polyethylene powder, polyacrylic acid, and cellulose powder.

  In addition to the above components, the solid cosmetic of the present invention includes inorganic powders such as talc and sericite, organic powders such as nylon powder and crystalline cellulose, pearl pigments such as fish scale foil and mica titanium, bengara, titanium oxide and the like. Inorganic pigments, organic pigments such as red 201 and orange 203, natural pigments such as copper chlorophyll and β-carotene, antioxidants such as dibutylhydroxytoluene and d-δ-tocopherol, 2-ethylhexyl paradimethylaminobenzoate, UV absorbers such as 2-ethylhexyl paramethoxycinnamate, vitamins such as dl-α-tocopherol acetate, retinol palmitate, anti-inflammatory agents such as stearyl glycyrrhetinate, whitening agents such as ascorbyl dipalmitate, l-menthol , Dl-camphor and other drugs, fragrances, etc. Additives can be incorporated to be.

  The solid cosmetic of the present invention may be a solid cosmetic, and examples thereof include lip gloss, lip balm, lipstick, hair stick, pomade, foundation, blusher, eye color, eye shadow, and fragrance. .

  The solid cosmetic of the present invention includes not only a transparent solid cosmetic having a transparent appearance but also a solid cosmetic having an opaque appearance by adding the above-described pigments. Of course, in the case of a transparent solid cosmetic material with a transparent appearance, even if it is a solid cosmetic material with an opaque appearance, according to the present invention, the transparency of the base material is improved. In addition to being excellent in the appearance of the product itself, it is possible to achieve a transparent finish and vivid color when applied. In the case of transparent solid cosmetics, the transparency is that the glass cell with an optical path length of 10 mm filled with cooling and solidified is allowed to stand at room temperature for 30 minutes, and then the glass is formed on the paper composed of 12-point characters. It is preferable that the character on the other side can be discriminated through the optical path when the cell is put down.

  Hereinafter, the present invention will be described in more detail with reference to examples. However, the present invention is not limited to these examples.

(Examples 1 and 2 and Comparative Examples 1 to 6)
According to the composition shown in Table 1 below, each component was heated and mixed at 80 ° C., then poured into a container and cooled and solidified to prepare transparent lipsticks of Examples 1 and 2 and Comparative Examples 1 to 6. About each obtained lipstick, transparency and stick moldability were evaluated.

With respect to the transparency, Comparative Example 1 was used as a control, and those with improved transparency were evaluated as “◯”, equivalents were evaluated as “Δ”, and those with decreased were evaluated as “X”. In addition, the stick moldability was evaluated as “◯” when the shape of the lipstick could be kept as it was drawn out from the container, “△” when deformed but kept solid, and “×” when not solid. . The results are shown in Table 1.

  As shown in Table 1, among the polyglycerin fatty acid esters, hexaglyceryl polyricinoleate and decaglyceryl polyricinoleate were able to dramatically improve transparency and were excellent in stick moldability.

(Examples 3 to 5)
In accordance with the formulation shown in Table 2 below, each component was heated and mixed at 80 ° C., then poured into a container and cooled and solidified to produce the transparent lipsticks of Examples 3 to 5, and the obtained lipsticks were extended. The property (improvement of use) was evaluated. The spreadability was evaluated based on the feel when used, and “○” was evaluated as improved over the control formula, “Δ” was evaluated as equivalent, and “X” was evaluated as lowered. The results are shown in Table 2.

(Examples 6 to 8)
According to the composition shown in Table 3 below, each component was heated and mixed at 80 ° C., then poured into a container and cooled and solidified to produce transparent lipsticks of Examples 6 to 8, and gels were obtained for the obtained lipsticks. Was evaluated for miniaturization (improvement of appearance). As for the gel miniaturization, the size of the gel mass observed at the time of solidification is evaluated by visual observation, and “○” indicates an improvement over the control formulation, “△” indicates an equivalent, and “×” indicates a decrease. ". The results are shown in Table 3.

(Example 9: Lip gloss)
According to the formulation shown in Table 4 below, each component was heated and mixed at 80 ° C., poured into a container, and cooled and solidified to produce a lip gloss.

  The obtained lip gloss was excellent in the transparency of the appearance, was smooth when applied, and had a transparent finish.

  In order to evaluate the transparency of the lip gloss, the solution heated and mixed as described above was filled in a glass cell having an optical path length of 10 mm, and cooled and solidified for 30 minutes at room temperature. When the glass cell was placed on a sheet of paper that had been tilted and the characters on the other side were observed through the optical path, it was discernable.

(Example 10: lip balm)
According to the formulation shown in Table 5 below, each component was heated and mixed at 80 ° C., poured into a container and cooled and solidified to prepare a lip balm.

  The obtained lip balm had excellent appearance transparency, was smooth when applied, and had a transparent finish. Further, when the transparency of this lip balm was evaluated in the same manner as in Example 9, the characters on the other side could be distinguished through the optical path.

(Example 11: lip balm [water-in type])
According to the formulation shown in Table 6 below, each component was heated and mixed at 80 ° C., poured into a container and cooled and solidified to prepare a lip balm.

  Although the obtained lip balm contained water, the transparency of the cosmetic itself was lowered, but it had a smooth and transparent finish when applied, and was excellent in moisture retention.

(Example 12: Lip gloss with capsules)
In accordance with the formulation shown in Table 7 below, components other than the capsule were heated and mixed at 80 ° C., cooled with stirring, and the capsule was added at 40 ° C. The lip gloss was produced by pouring this into a container and solidifying by cooling.

  The obtained lip gloss was excellent in transparency of the appearance and excellent in visual effect because it contained capsules. Moreover, it was smooth when applied and had a transparent finish. Further, when the transparency of the lip gloss was evaluated in the same manner as in Example 9, it was possible to distinguish the character on the other side through the optical path.

Claims (3)

  A solid cosmetic comprising hydroxystearic acid, polyglyceryl polyricinoleate, and an oil.   The solid cosmetic according to claim 1, further comprising water and / or a polyhydric alcohol. The solid cosmetic according to claim 1 or 2, further comprising capsules or particles.