JP2010037209A - Solid powder cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solid powder cosmetic excellent in usability. <P>SOLUTION: Provided is the solid powder cosmetic characterized by having penetration hardness of 60 to 95 under a load of 2 pounds with an Olsen hardness meter. The solid powder cosmetic preferably contains powder having Vickers hardness of ≤7. The solid powder cosmetic is preferably obtained by adding a volatile oil to a cosmetic base agent comprising an oil and a powder component containing organic spherical powder having Vickers hardness of ≤7 to form slurry, charging the slurry in a container, and then removing the solvent. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

    The present invention relates to a cosmetic, and more particularly to a solid powder cosmetic.

Solid powder cosmetics such as powder foundations are excellent in portability, and in recent years have surpassed loose powder type powder cosmetics. However, due to portability, in terms of usability, especially, good spreadability on the skin, good adhesion to the skin, good touch feeling during use, when cosmetics come into contact with the skin during use Moreover, the lightness of the touch is the best. That is, in the case of solid powder cosmetics, in addition to functions such as good spreadability on the skin and good adhesion to the skin, the feeling that the skin feels during use is good, and the cosmetics It can be said that it is strongly desired that the touch is light when it comes into contact with the skin during use.
In order to meet this demand, attempts have been made to include cosmetics in an organic spherical powder such as a spherical silicone elastomer. (For example, refer to Patent Document 1 and Patent Document 2) However, in order to obtain a light contact feeling to the skin, it is necessary to increase the content of these organic spherical powders. If the height is increased, there arises a problem that the powder cosmetic cannot be filled in a container such as an inner dish due to repulsion to the pressure used at the time of molding, and even the finished product lacks physical stability.

In order to solve this problem, a polar solvent such as ethanol is added to a cosmetic base composed of a spherical silicone elastomer and an oil agent to form a slurry, which is then filled into a container, and then the solvent is removed. Attempts have been made to prepare solid powder cosmetics by so-called “wet molding”. (For example, Patent Documents 3 and 4) Even in this method, although the moldability is improved, the usability is not improved.
On the other hand, a wet molding method using a volatile solvent is not known, and it has not been known at all that a large difference appears in the quality of the final molded product by replacing the solvent with a volatile oil agent. Paying attention to the hardness of organic spherical powder, it was not known at all that solid powder cosmetics prepared by wet molding method by blending organic powder below a certain hardness had a feeling of use of so-called "feather touch" .

JP-A-9-175940 JP-A-9-315936 JP-A-7-277924 JP-A-9-255528

This invention is made | formed in the background of such a situation, and makes it a subject to provide the cosmetics which are solid powder cosmetics and are excellent in usability.

  In view of this situation, the present inventors have made extensive research efforts to obtain a cosmetic that is a solid cosmetic and excellent in usability, and as a result, prepared by a so-called wet molding method using a volatile oil agent. As a result, the present inventors have found that a solid powder material can be obtained. That is, the present invention is as follows.

(1) Solid powder cosmetics having a penetration hardness of 60 to 95 with an Olsen hardness meter at a load of 2 pounds.
(2) The solid powder cosmetic according to (1), wherein the solid powder cosmetic contains a powder having a Vickers hardness of 7 or less.
(3) A volatile oil agent is added to a cosmetic base composed of a powder component containing an organic spherical powder having a Vickers hardness of 7 or less and an oil agent to form a slurry, and after filling the slurry into a container, the solvent is added. The solid powder cosmetic according to (1) or (2), which is prepared by removing.
(4) The solid powder cosmetic according to any one of (1) to (3), wherein the organic spherical powder having a Vickers hardness of 7 or less is a cross-linked acrylic polymer.
(5) The solid powder according to any one of (1) to (4), wherein the organic spherical powder is a copolymer of (meth) acrylic acid ester and (meth) acrylic acid diester of dihydric alcohol Cosmetics.
(6) The solid powder cosmetic according to any one of (1) to (5), wherein the content of the organic powder is 5% by mass to 20% by mass of the entire cosmetic (the entire powder component).
(7) A method for producing a solid powder cosmetic, comprising adding a volatile oil to a cosmetic base comprising a powder component and an oil to form a slurry, filling the slurry in a container, and then adding the volatile oil to the cosmetic base. A method for producing a solid powder cosmetic, which is removed to obtain a solid powder cosmetic.
(8) The method for producing a solid powder cosmetic according to (7), wherein the solid powder cosmetic contains a powder having a Vickers hardness of 7 or less.
(9) The method for producing a solid powder cosmetic according to (7) or (8), wherein the solid powder cosmetic has a penetration hardness of 60 to 90 with an Olsen hardness meter at a load of 2 pounds .

ADVANTAGE OF THE INVENTION According to this invention, the solid powder cosmetics excellent in usability can be provided.

(1) Solid powder cosmetic of the present invention The solid powder cosmetic of the present invention has a penetration hardness of 60 to 95, more preferably 70 to 85, as measured by an Olsen hardness meter. In order to obtain a cosmetic having such a property, the powder component and the oil component are mixed and kneaded together with the volatile oil agent, and this is filled in an inner dish, and then the volatile oil agent as a kneading medium is added. It is manufactured by volatilization and molding. Here, the volatile oil that can be used in the present invention is any of light isoparaffin, dimethicone, and cyclomethicone, and preferably has a boiling point of 150 to 250 ° C. Some of these volatile oils are already commercially available as cosmetic raw materials, and such cosmetic raw materials can be purchased and used. Among such commercially available products, preferable examples include “IP Solvent 1620MU” manufactured by Idemitsu Kosan Co., Ltd. and “Silicone KF96-1” manufactured by Shin-Etsu Silicone. As the volatile oil agent as the kneading medium, only one species can be used, or two or more species can be used in combination. Moreover, it is preferable that the quantity is 0.25 to 1.00 times the cosmetic base which consists of a powder component and an oil agent component by weight conversion. In the kneading, kneading so that secondary agglomeration of the powder can be crushed as much as possible is preferable. Specifically, it is preferable to mix and knead using an earth kneader, a double planetary mixer or the like. After kneading to create a slurry and filling this, the volatile oil agent is volatilized and molded, but the volatilization condition of the volatile oil agent is preferably exemplified by a blowing condition of 6 to 48 hours at 50 to 100 ° C. it can.

(2) Powder suitably contained in the cosmetic of the present invention The solid powder cosmetic of the present invention ensures the above properties by containing a powder having low hardness in addition to the wet manufacturing method. I can do it. That is, it contains a powder having a Vickers hardness of 7 or less, especially an organic spherical powder. Examples of the organic spherical powder include spherical polyurethane, spherical acrylic polymer, spherical polyamide and the like, but a spherical cross-linked acrylic polymer is preferable, and a spherical (meth) acrylic ester and a (meth) acrylic acid of a dihydric alcohol. More preferred are copolymers of diesters. In such a solid powder cosmetic, such a powder impairs moldability, so its blending amount is extremely limited. However, in the wet slurry method using the volatile oil described above, In the molding, the phenomenon that the cake swells due to the elasticity of the powder after the pressure molding is suppressed, so that it can be suitably used as a raw material for reducing the hardness by an Olsen penetration hardness meter.

The particle diameter of the organic spherical powder measured with a Coulter counter is 1 to 20 microns, preferably 5 to 15 microns, and more preferably 7 to 13 microns. If the particle size is too small, the bulk density of the solid cosmetic may become high and molding may be difficult, and if the particle size is too large, a sense of incongruity may occur when the solid cosmetic is used.
The organic spherical powder as an essential component of the solid powder cosmetic of the present invention can be synthesized, for example, by the following method. That is, a predetermined monomer is dispersed in water as droplets, and the monomer is polymerized by decomposition of a polymerization initiator dissolved in the monomer by heating to obtain a desired spherical powder.
There are also commercially available products that can be used. Examples of these commercially available products include Matsumoto Microsphere S-100 (registered trademark; (butyl acrylate / dimethacrylate glycol) crosspolymer and (methyl methacrylate / dimethacrylate glycol) crosspolymer mixture).

The content of the organic spherical powder as an essential component of the solid powder cosmetic of the present invention is 5% by mass to 20% by mass, and 7% by mass to 18% by mass with respect to the entire solid powder cosmetic (the entire powder component). It is preferable that it is 10 mass%-15 mass%.
If the content of the organic spherical powder is too small, it may not be possible to obtain a light touch on the skin when using cosmetics, which is not preferable. Moreover, when there is too much content, there is too much amount to take out to the puff at the time of cosmetics use, and it is not preferable.

(3) Optional components contained in the solid powder cosmetic of the present invention The cosmetic of the present invention is a solid powder cosmetic, and includes base makeup materials such as powder foundation and pressed powder, points such as powder eye color and cheek color Although it can be applied to a make-up fee, it is preferably used as a base make-up fee with a large use area in order to highlight its usability. When applied to such various solid powder cosmetics, in the solid powder cosmetic of the present invention, suitable components are appropriately selected from the optional components normally used in cosmetics, and the solid powder cosmetics to be applied are selected. It can be processed into a preferable property.

Such optional ingredients include, for example, macadamia nut oil, avocado oil, corn oil, olive oil, rapeseed oil, sesame oil, castor oil, safflower oil, cottonseed oil, jojoba oil, coconut oil, palm oil, liquid lanolin, hardened coconut oil, hardened Oil, molasses, hydrogenated castor oil, beeswax, candelilla wax, carnauba wax, botarou, lanolin, reduced lanolin, hard lanolin, jojoba oil, waxes, liquid paraffin, squalane, pristane, ozokerite, paraffin, ceresin, petrolatum, micro Hydrocarbons such as crystallin wax, oleic acid, isostearic acid, lauric acid, myristic acid, palmitic acid, higher fatty acids such as stearic acid, behenic acid, undecylenic acid, cetyl alcohol, stearyl alcohol, isostearyl High alcohols such as alcohol, behenyl alcohol, octyldodecanol, myristyl alcohol, cetostearyl alcohol, cetyl isooctanoate, isopropyl myristate, hexyldecyl isostearate, diisopropyl adipate, di-2-ethylhexyl sebacate, cetyl lactate, malic acid Diisostearyl, di-2-ethylhexanoic acid ethylene glycol, dicaprate neopentyl glycol, di-2-heptylundecanoic acid glycerin, tri-2-ethylhexanoic acid glycerin, tri-2-ethylhexanoic acid trimethylolpropane, tri Synthetic ester oils such as trimethylolpropane isostearate and pentane erythritol tetra-2-ethylhexanoate, dimethylpolysiloxane, methylphenylpolysiloxane Chain polysiloxanes such as xane and diphenylpolysiloxane, cyclic polysiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexanesiloxane, amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, Oil agents such as silicone oil such as modified polysiloxane such as fluorine-modified polysiloxane, anionic surfactants such as fatty acid soap (sodium laurate, sodium palmitate, etc.), potassium lauryl sulfate, triethanolamine ether of alkyl sulfate, chloride Cationic surfactants such as stearyltrimethylammonium, benzalkonium chloride, laurylamine oxide, imidazoline-based amphoteric surfactants (2-cocoyl-2-imidazo Linium hydroxide-1-carboxyethyloxy disodium salt, etc.), betaine surfactants (alkyl betaine, amide betaine, sulfobetaine, etc.), amphoteric surfactants such as acylmethyltaurine, sorbitan fatty acid esters (sorbitan) Monostearate, sorbitan sesquioleate, etc.), glycerin fatty acids (eg, glyceryl monostearate), propylene glycol fatty acid esters (eg, propylene glycol monostearate), hardened castor oil derivatives, glycerin alkyl ethers, POE sorbitan fatty acid esters (POE sorbitan monooleate, polyoxyethylene sorbitan monostearate, etc.), POE sorbite fatty acid esters (POE-sorbitol monolaurate, etc.), POE glycerin fatty acid ester (POE-glycerin monoisostearate, etc.), POE fatty acid esters (polyethylene glycol monooleate, POE distearate, etc.), POE alkyl ethers (POE2-octyldodecyl ether, etc.), POE alkyl phenyl ethers (POE nonylphenyl) Ethers, etc.), Pluronic types, POE / POP alkyl ethers (POE / POP2-decyltetradecyl ether, etc.), Tetronics, POE castor oil / hardened castor oil derivatives (POE castor oil, POE hardened castor oil, etc.), Nonionic surfactants such as sucrose fatty acid ester and alkyl glucoside, polyethylene glycol, glycerin, 1,3-butylene glycol, erythritol, sorbitol, xylitol, maltitol, propylene group Polyhydric alcohols such as coal, dipropylene glycol, diglycerin, isoprene glycol, 1,2-pentanediol, 2,4-hexylene glycol, 1,2-hexanediol, 1,2-octanediol, pyrrolidone carvone Moisturizing ingredients such as sodium acid, lactic acid, sodium lactate, guar gum, quince seed, carrageenan, galactan, gum arabic, pectin, mannan, starch, xanthan gum, curdlan, methylcellulose, hydroxyethylcellulose, carboxymethylcellulose, methylhydroxypropylcellulose, chondroitin Sulfuric acid, dermatan sulfate, glycogen, heparan sulfate, hyaluronic acid, sodium hyaluronate, tragacanth gum, keratan sulfate, chondroitin, mucoitin sulfate, hygiene Droxyethyl guar gum, carboxymethyl guar gum, dextran, keratosulfuric acid, locust bean gum, succinoglucan, caronic acid, chitin, chitosan, carboxymethylchitin, agar, polyvinyl alcohol, polyvinylpyrrolidone, carboxyvinyl polymer, sodium polyacrylate, Thickeners such as polyethylene glycol and bentonite, surface may be treated, powder such as mica, talc, kaolin, synthetic mica, calcium carbonate, magnesium carbonate, silicic anhydride (silica), aluminum oxide, barium sulfate The surface may be treated, bengara, yellow iron oxide, black iron oxide, cobalt oxide, ultramarine, bitumen, titanium oxide, zinc oxide inorganic pigments, the surface may be treated, mica titanium, Fish phosphorus foil, bismuth oxychloride Pearl agents, which may be raked Red 202, Red 228, Red 226, Yellow 4, Blue 404, Yellow 5, Red 505, Red 230, Red 223, Orange 201 No., Red No. 213, Yellow No. 204, Yellow No. 203, Blue No. 1, Green No. 201, Purple No. 201, Red No. 204 and other organic dyes, polyethylene powder, polymethyl methacrylate, nylon powder, organopolysiloxane elastomer Organic powders such as paraaminobenzoic acid UV absorbers, anthranilic acid UV absorbers, salicylic acid UV absorbers, cinnamic acid UV absorbers, benzophenone UV absorbers, sugar UV absorbers, 2- ( 2'-hydroxy-5'-t-octylphenyl) benzotriazole, 4-methoxy-4'-t-butyldibenzoylmethane, etc. Absorbents, lower alcohols such as ethanol and isopropanol, vitamin A or derivatives thereof, vitamin B6 hydrochloride, vitamin B6 tripalmitate, vitamin B6 dioctanoate, vitamin B2 or derivatives thereof, vitamin B12, vitamin B15 or derivatives thereof, etc. Vitamin E such as vitamin B, α-tocopherol, β-tocopherol, γ-tocopherol and vitamin E acetate, vitamin D such as vitamin D, vitamin H, pantothenic acid, panthetin, pyrroloquinoline quinone and the like can be preferably exemplified.

Using these, it can be produced by processing into a slurry by a wet slurry method using the volatile oil agent as a kneading medium, filling in an inner dish, volatilizing the volatile oil agent, and molding. In addition, when slurrying, after coating the powder component with an oil agent, the solvent may be further mixed and filled in a container such as an inner dish, or the solvent may coexist when the powder is coated with the oil agent. good.

EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated in detail, it cannot be overemphasized that this invention is not limited only to an Example.

<Production Example 1>
(Production of organic spherical powder which is an essential component of the solid powder cosmetic of the present invention)
In a 1 L beaker, 500 ml of water was taken, and 100 g of a colloidal silica dispersion having a solid content of 20% was added to the water. To this was added 98 g of butyl methacrylate, 2 g of divinylbenzene and 0.1 g of benzoyl peroxide mixed and dissolved. Using a homomixer, the mixture was stirred and mixed at 3000 rpm for 3 minutes to obtain an O / W emulsion. This emulsion was put into a four-necked separable flask equipped with a thermometer, a nitrogen inlet tube, a cooler, and a stirrer, and heated at 80 ° C. for 4 hours while continuing the stirring to carry out a polymerization reaction. After allowing the temperature to reach room temperature, the contents of the flask were filtered and washed with pure water to obtain an organic spherical powder 1 which is an essential component of the solid powder cosmetic. The organic spherical powder 1 had an average particle size of 10 μm and a Vickers hardness of 6.

<Examples 1-4><Comparative Examples 1-3>
A powder foundation, which is a solid cosmetic, was prepared according to the following process. That is, the components in Table 1 (A) were mixed with a Henschel mixer and then pulverized with a pulverizer. Then, (b) component was added, stirring this mixture with a Henschel mixer again, mixing was continued, and the cosmetic base was obtained. The obtained cosmetic base was taken out from the Henschel mixer, and then pulverized again with a pulverizer. Both were knead | mixed in the ratio of the isoparaffin 0.5 with respect to the base 1, and slurry was created. This slurry was filled in an aluminum pan, and isoparaffin was removed under vacuum conditions to obtain a powder foundation. In Comparative Example 1, the cosmetic base pulverized by the pulverizer was tried to fill the alumina middle dish with a semi-automatic press using a mold by a conventional method. Further, it was impossible to fill.
The numbers in Table 1 represent mass%.

１）ビッカース硬度４〜５
＊ ２）マツモトマイクロスフェアーＭ２０１（登録商標；松本油脂製制約株式会社製）
：ビッカース硬度１９〜２０
＊ ３）シリコーンＫＳＰ３００（登録商標；信越化学株式会社製）
：ビッカース硬度９〜１０

1) Vickers hardness 4-5
* 2) Matsumoto Microsphere M201 (registered trademark; manufactured by Matsumoto Yushi Co., Ltd.)
: Vickers hardness 19-20
* 3) Silicone KSP300 (registered trademark; manufactured by Shin-Etsu Chemical Co., Ltd.)
: Vickers hardness 9-10

<Test Example 1>
Measurement of coefficient of dynamic friction with friction tester Adhesive tape was applied to the tip of a commercially available friction tester made of stainless steel, and after applying the powder foundation samples of Examples 1 to 4 and Comparative Examples 2 and 3, Table 2 shows the results of measuring the dynamic friction coefficient during 30 mm movement on artificial leather under a load of 50 g and the Olsen penetration hardness at a load of 2 pounds.

<Test Example 3>
Sensory evaluation of powder foundation The usability when the powder foundations of Examples 1-4 and Comparative Examples 1-2 were applied to the skin was evaluated. That is, the feel and function when the powder foundations of Examples 1 to 4 and Comparative Examples 2 to 3 were used by 5 skilled evaluators were evaluated from the following viewpoints, and the average score of 5 persons was scored. The results are shown in Table 3.

(1) Good foundation growth Good; 5 Good; 4 Normal; 3 Somewhat bad; 2 Bad; 1
(2) Adhesion to the skin (determined by the degree of powder floating) Good; 5 Good; 4 Normal; 3 Somewhat bad; 2 Bad 1
(3) Feeling of contact with skin hardly felt; 5 feel slightly; 4 feel; 3 feel quite; 2 feel clear; 1

  From Table 2, the solid cosmetic of the present invention has a very low coefficient of dynamic friction, low friction with the skin during use, and is expected to be used very lightly. From Table 3, this expected use feeling is confirmed in actual use, and the solid powder cosmetic of the present invention has excellent functions such as spreadability and adhesion to the skin, and the feeling of contact with the skin is extremely low. Also proved to be excellent.

<Examples 6 to 9><Comparative Examples 3 to 4>
A powder eye color, which is a solid cosmetic, was prepared according to the following process. That is, the ingredients in Table 4 (a) were mixed with a Henschel mixer and then pulverized with a pulverizer. After that, the component (a), component (b) and isoparaffin crushed in a double planet mixer (DPM) are added at a ratio of 0.5 isoparaffin to the sum 1 of (b) and (b) in terms of mass. The whole was kneaded to prepare a slurry. This slurry was filled in an aluminum pan, and isoparaffin was removed under vacuum to obtain a powder eye color. The numbers in Table 4 represent mass%.

＊ １）ビッカース硬度４〜５
＊ ２）マツモトマイクロスフェアーＭ２０１（登録商標；松本油脂製制約株式会社製）
：ビッカース硬度１９〜２０
＊ ３）シリコーンＫＳＰ３００（登録商標；信越化学株式会社製）
：ビッカース硬度９〜１０

* 1) Vickers hardness 4-5
* 2) Matsumoto Microsphere M201 (registered trademark; manufactured by Matsumoto Yushi Co., Ltd.)
: Vickers hardness 19-20
* 3) Silicone KSP300 (registered trademark; manufactured by Shin-Etsu Chemical Co., Ltd.)
: Vickers hardness 9-10

<Test Example 3>
Measurement of Dynamic Friction Coefficient by Friction Tester Table 5 shows the results of measuring the dynamic friction coefficients of Examples 6 to 9 and Comparative Examples 4 to 5 in the same manner as in Test Example 1 and the Olsen penetration hardness at a load of 2 pounds.

<Test Example 4>
Sensory Evaluation of Powder Eye Color The feeling of use when the powder eye colors of Examples 6 to 9 and Comparative Examples 3 to 4 were applied to the skin was evaluated in the same manner as in Test Example 2. The results are shown in Table 6.

  From the results of Tables 5 and 6, the eye powder, which has a relatively small area of use, has excellent physical properties that the dynamic friction coefficient of the solid powder cosmetic of the present invention is small. It was proved that the excellent feeling that the feeling of contact was extremely small was exhibited.

<Comparative Example 6>
Using the cosmetic formulation of Example 1, the kneading medium was changed from isoparaffin to ethanol and operated in the same manner, and the penetration hardness was measured under a load condition of 2 pounds with an Olsen hardness meter. It was found that the cosmetics of the present invention do not have the characteristics.

<Example 10>
The cosmetic medium of Example 10 was obtained in the same manner as described above except that the kneading medium for the cosmetic material of Example 1 was replaced with cyclomethicone instead of isoparaffin. The Olsen penetration hardness of this product was 68.

<Example 11>
The cosmetic medium of Example 10 was obtained in the same manner as in Example 1 except that the kneading medium of the cosmetic material was replaced with dimethicone (1 mPa · s) from isoparaffin. The Olsen penetration hardness of this product was 72.

<Test Example 5>
Sensory evaluation of powder foundation The usability when the powder foundations of Examples 10 to 11 and Comparative Example 6 were applied to the skin was evaluated in the same manner as in Test Example 2. The results are shown in Table 7.

表７からも本発明の化粧料は使用性に優れることが判る。

Table 7 also shows that the cosmetic of the present invention is excellent in usability.

Cosmetics It can be effectively used especially for makeup cosmetics.

Claims (9)

Solid powder cosmetics having a penetration hardness of 60 to 95 with an Olsen hardness meter at a load of 2 pounds. The solid powder cosmetic according to claim 1, wherein the solid powder cosmetic contains a powder having a Vickers hardness of 7 or less. A volatile oil is added to a cosmetic base comprising an organic spherical powder having an organic spherical powder having a Vickers hardness of 7 or less to form a slurry. After the slurry is filled in a container, the solvent is removed. The solid powder cosmetic according to claim 1, wherein the cosmetic is prepared. The solid powder cosmetic according to any one of claims 1 to 3, wherein the organic spherical powder having a Vickers hardness of 7 or less is a crosslinked acrylic polymer. The solid powder cosmetic according to any one of claims 1 to 4, wherein the organic spherical powder is a copolymer of (meth) acrylic acid ester and (meth) acrylic acid diester of dihydric alcohol. The solid powder cosmetic according to claim 1, wherein the content of the organic powder is 5% by mass to 20% by mass of the entire cosmetic (the whole powder component). A method for producing a solid powder cosmetic, comprising adding a volatile oil to a cosmetic base comprising a powder component and an oil to form a slurry, filling the slurry in a container, and then removing the volatile oil. A method for producing a solid powder cosmetic, characterized in that it is a solid powder cosmetic. The method for producing a solid powder cosmetic according to claim 7, wherein the solid powder cosmetic contains a powder having a Vickers hardness of 7 or less. The method for producing a solid powder cosmetic according to claim 7 or 8, wherein the solid powder cosmetic has a penetration hardness of 60 to 95 with an Olsen hardness meter at a load of 2 pounds.