JP2006069945A - Rod-like oily cosmetic and method for producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for producing a rod-like oily cosmetic excellent in appearance and mold release property and having good touch, in which the trace of the oily cosmetic attached to the inner wall of a resin container is extremely slight and the oily cosmetic packed in a container can rapidly and uniformly be cooled, in a short time and high production efficiency by packing the container for packing a rod-like pack with a metal mold excellent in thermal conductivity and rapidly cooling the container. <P>SOLUTION: The container for packing the rod-like pack is included into a mold made of a metal and the oily cosmetic is poured into the container and the oily cosmetic is solidified and formed by continuously cooling the cosmetic from the interior and/or outside of the mold made of the metal to produce the rod-like oily cosmetic. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention encloses a rod-shaped back-filling container in a metal mold, pours molten oily cosmetic, and cools continuously from the inside and / or outside of the metal mold to solidify and mold the oily cosmetic. The present invention relates to a method for producing a rod-like oily cosmetic.
More specifically, by using a metal mold with excellent thermal conductivity, oily cosmetics can be cooled quickly and uniformly, with excellent appearance in a short time, high production efficiency, and excellent mold release. The present invention relates to a method for obtaining a stick-like oily cosmetic material that has a good feel and has few traces due to adhesion to the inner wall of a resin container.

  Conventional methods for obtaining a sticky oily cosmetic by directly filling a sticky container with an oily cosmetic are as follows: (1) Filling a container with a resin capsule directly with the oily cosmetic, cooling, and then releasing the capsule to remove the sticky oily cosmetic. And (2) a method of obtaining a rod-like oily cosmetic after directly filling the rod-like container with the oily cosmetic and cooling. Moreover, the method (patent document 1) of cooling a rod-shaped back filling container with cooling water directly is known.

Japanese Utility Model Publication No. 55-4083

  In the case of the methods (1) and (2), the rod-shaped oily cosmetic filled in the rod-shaped back-filling container is generally cooled and solidified using cooling air as a refrigerant. When cooling air is used, there are merits such as simple equipment and easy control of the temperature of the air itself. However, the cooling efficiency is poor and uniform cooling is not possible, so the contents partially adhere to the inner wall of the resin container. There is a problem that it is difficult to obtain a uniform appearance. Water cooling is better than air cooling as in Patent Document 1 if only to increase cooling efficiency, but water droplets adhere to the product, leaving a trace after water droplet transpiration, making the mold complicated and water There is a problem that leakage tends to occur, and this method is also not preferable. Therefore, in order to produce a product with a better appearance industrially with a high probability by the conventional method using cooling air, it is necessary to improve the dedicated content configuration, and the consumption that diversifies the constraints on the content quality Inability to go about the needs of the elderly was a major issue.

  As a result of diligent research, the present inventors have made use of the fact that metal molds are excellent in thermal conductivity, poured a stick-shaped back filling container into a metal mold, poured a molten oily cosmetic, and made metal By continuously cooling from the inside and / or outside of the mold to solidify and mold the oily cosmetics, the oily cosmetics can be cooled quickly and uniformly, with excellent appearance in a short time, high production efficiency, and separation. It has been found that a rod-like oily cosmetic material having excellent moldability and good feel can be obtained. Furthermore, it has also been found that in this method, traces due to adhesion to the inner wall of the resin container appearing on the surface of the bar-shaped solid cosmetic can be remarkably reduced.

  That is, the invention described in the present application is composed of the following first to eighth inventions (hereinafter referred to as “the present invention” unless otherwise specified). First, in the first invention of the present application, a molten oily cosmetic material is poured into a metal mold containing a rod-shaped back filling container, and continuously cooled from inside and / or outside of the metal mold. The present invention resides in a method for producing a rod-like oily cosmetic, characterized by solidifying and molding the cosmetic.

  2nd this invention exists in the manufacturing method of the said rod-shaped oily cosmetics characterized by an oily cosmetics containing 1 or more types of the wax which has the melting | fusing point in the range of 50-90 degreeC under normal temperature normal pressure.

  In the third aspect of the present invention, the wax having a melting point in the range of 50 to 90 ° C. at normal temperature and pressure is selected from paraffin, ceresin, ozokerite, microcrystalline wax, candelilla wax, polyethylene, and synthetic hydrocarbon wax. It is the above, The manufacturing method of the said rod-shaped oily cosmetics characterized by the above-mentioned.

  A fourth aspect of the present invention resides in the above method for producing a rod-like oily cosmetic, characterized in that the wax is refined so that the melting point at room temperature and normal pressure is in the range of 50 to 90 ° C.

  The fifth aspect of the present invention lies in the above method for producing a rod-like oily cosmetic, wherein the metal mold is cooled in advance so as to be in the range of -20 to 15 ° C.

  According to a sixth aspect of the present invention, there is provided the above method for producing a rod-like oily cosmetic, wherein the cooling is performed so that the outside temperature of the metal mold is in the range of 3 to 20 ° C.

  The seventh aspect of the present invention is the production of the above rod-like oily cosmetic, characterized in that the rod-like back filling container and the metal mold are designed to have a distance of 0.1 to 1.0 mm. Is in the way.

  The eighth aspect of the present invention resides in a rod-like oily cosmetic produced by any of the above methods.

  From the above, the present invention can quickly cool the filled molten oily cosmetic material uniformly and uniformly by wrapping the rod-shaped back filling container with a metal mold having excellent thermal conductivity and rapidly cooling it. A rod-like oily cosmetic material characterized by excellent appearance over time, high production efficiency, excellent releasability, good touch, and slight trace due to adhesion to the inner wall of the resin container is obtained.

Hereinafter, the present invention will be described in detail.
First, the rod-shaped back-filling container referred to in the present invention is a container for filling oily cosmetics such as lipstick and concealer, and is made of one or more materials selected from resins, metals and combinations thereof. Examples of the resin are not particularly limited, but preferred examples include ABS resin (acrylonitrile / butadiene / styrene resin), AS resin (acrylonitrile / styrene resin), AES resin (acrylonitrile, ethylene-propylene diene rubber, styrene resin). , ASA resin (acrylic rubber / styrene / acrylonitrile resin), POM resin (polyoxymethylene resin), PBT resin (polybutylene terephthalate resin), PET resin (polyethylene terephthalate resin), HIS resin (high impact polystyrene resin), etc. However, some resins have poor releasability, such as PP resin (polypropylene resin), and some have poor oil resistance, such as PS resin (polystyrene resin), so test compatibility with oily cosmetic ingredients Good to do Arbitrariness. In the present invention, it is more preferable to use a resinous container excellent in cost and mold flexibility.

  Moreover, when a resin container is used as the rod-shaped back filling container used in the present invention, the thickness of the resin container is preferably in the range of 0.3 to 1.5 mm. When the thickness is less than 0.3 mm, there is a problem in moldability, and when it exceeds 1.5 mm, there is a problem that cooling efficiency is deteriorated when cooling. When a metal container is used, there is no problem in thermal conductivity and there is no particular limitation.

  As the metal mold material referred to in the present invention, metals and alloys that can be generally used as mold materials such as iron, copper, nickel, stainless steel, aluminum alloy, and brass can be used. All of these metals and alloys are excellent in thermal conductivity, and there is no problem in use as the cooling material of the present invention.

  The metal mold used in the present invention may be an integral mold or a split mold that can be disassembled into a plurality. Moreover, the channel | path which lets a cavity and a refrigerant pass may be provided inside the metal type | molds. When the refrigerant is passed, there is a problem that the mold becomes complicated and the cost increases, but there is also a merit that the cooling temperature is stabilized.

  The wall thickness of the metal mold is not particularly limited, but it is 30 mm or more in consideration of the effect of enhancing the cooling effect on the rod-shaped back filling container and the filling material, the precision and durability of the mold processing. Is more preferable, and a range of 35 to 55 mm is more preferable. In this range, the heat capacity of the mold is increased, and a stable cooling effect can be obtained. When cooling by only the heat capacity of the mold, it is preferable to increase the thickness. When cooling from the outside or the inside, the thickness may be small.

  The distance between the metal mold used in the present invention and the rod-shaped back filling container is preferably in the range of 0.1 to 5.0 mm, more preferably in the range of 0.1 to 1.0 mm. Can be mentioned. If the distance is less than 0.1 mm, the mold may damage the rod-shaped back-filling container. If the distance exceeds 5 mm, the cooling efficiency is lowered and cooling cannot be performed well. However, the shape of the bar-shaped back filling container is complicated, and even when a part of the whole does not fall within this range, 60% or more of the area where the metal mold and the bar-shaped back filling container are in contact, preferably 80%. If more than% is in this interval, there is no problem.

The present invention is characterized in that a rod-shaped back filling container is continuously cooled and solidified from the inside and / or outside of a metal mold, and the molten oily cosmetic is filled into the rod-shaped back filling container. It is important to cool quickly at an early stage. In the present invention, since the metal mold is cooled using the excellent thermal conductivity and heat capacity, the metal mold can be cooled as long as the metal mold can be cooled, for example, cooled air. Examples of the cooling method include a cooling method using a cooled metal plate, a cooling method using a cooled metal plate, a cooling plate method using a cooled metal plate, and a cooling method in which a coolant is allowed to flow inside the mold. However, as mentioned above, although there are advantages such as simple equipment and easy control of the temperature of the air itself, the cooling efficiency is poor compared to the water cooling method, and uniform cooling is not possible. The effect of the present invention becomes more prominent when applied to an air-cooling system in which there is a tendency that objects are partially attached and it is difficult to obtain a uniform appearance.
Further, except for the case where the metal mold circulates the refrigerant, if the metal mold is continuously used, the temperature of the mold rises and the cooling condition changes. It is preferable to use after cooling so as to be in the range of -15 ° C, more preferably in the range of 3-15 ° C. Even when not cooled, it is preferable to keep the temperature of the mold before use in the range of 3 to 30 ° C. In the present invention, continuous cooling means that the melted oily cosmetic is deprived of heat by a metal mold, heat is deprived by the refrigerant in the metal mold, and the metal mold This indicates that the cooling is continuously performed through the metal mold due to cooling from the outside and taking heat away, and even if the cooling from the outside is intermittent, the result is continuous. It does not matter as long as cooling is performed.

  As a cooling condition of the metal mold used in the present invention, the outside temperature of the mold is in the range of 3 to 20 ° C. for a certain period (for example, about 3 minutes) after pouring the heated oily cosmetic. It is preferable that it is cooled. When cooling is performed under a condition of less than 3 ° C., dew condensation occurs on the product surface and the appearance deteriorates, so that it is necessary to perform humidity management. Moreover, when it exceeds 20 degreeC, a cooling rate will become slow, production efficiency will fall, and problems, such as a mold release property worsening, will arise. As a concept of cooling conditions, for example, when the diameter of the rod-shaped back filling container is large, the wall thickness is thick, and the pigment content of the oily cosmetic is small, it is preferable to set the mold temperature low. In the case where the diameter is thin and the wall thickness is thin, the temperature of the mold may be set higher.

  The oily cosmetic referred to in the present invention includes water-in-oil emulsified cosmetics in addition to non-aqueous cosmetics. As temperature which melt | dissolves oily cosmetics by this invention, if it is the range of 70-120 degreeC, there will be no problem, Preferably about 80 degreeC is mentioned. In particular, when a resin container is used as the rod-shaped back-filling container, it is preferably filled in the range of 75 to 90 ° C.

  The oily cosmetic used in the present invention can be produced by a conventionally known method. For example, it may be produced using a dispersing machine such as a roller or a bead mill, or a color base may be prepared using a bead mill or the like and mixed to produce. The oily cosmetics of the present invention include oils that can be used in cosmetics, powders (pigments, dyes, resins), surface-treated powders, fluorine compounds, resins, surfactants, stickers, preservatives, fragrances, ultraviolet rays Absorbent (including organic and inorganic systems, which may be compatible with UV-A or B), humectants, salts, solvents, antioxidants, chelating agents, bioactive ingredients, oily gelling agents Ingredients such as elastomers can be blended.

  Examples of oils include, for example, avocado oil, linseed oil, almond oil, eno oil, olive oil, kaya oil, liver oil, kyounin oil, whale wax, wheat germ oil, sesame oil, rice germ oil, sasanqua oil, safflower oil, cinnagiri Oil, cinnamon oil, turtle oil, soybean oil, tea seed oil, camellia oil, evening primrose oil, corn oil, rapeseed oil, Japanese kiri oil, germ oil, persic oil, castor oil, castor oil fatty acid methyl ester, sunflower oil, grape As oil, jojoba oil, macadamia nut oil, mink oil, cottonseed oil, peanut oil, liquid lanolin, reduced lanolin, lanolin alcohol, lanolin acetate, lanolin fatty acid isopropyl, hexyl laurate, POE lanolin alcohol ether, POE lanolin alcohol acetate; , Squalane, squalene, liquid paraffin, Stan, polybutene, etc .; oleic acid, linoleic acid, linolenic acid, arachidonic acid, isostearic acid as higher fatty acids; diisobutyl adipate, 2-hexyldecyl adipate, di-2-heptylundecyl adipate as ester oils N-alkyl glycol monoisostearate, isocetyl isostearate, trimethylolpropane triisostearate, glycerin tri (capryl / capric acid), ethylene glycol di-2-ethylhexanoate, cetyl 2-ethylhexanoate, tri-2- Trimethylolpropane ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate, cetyl octoate, oleyl oleate, octyldodecyl oleate, decyl oleate, neopentylglycol dicaprate , Triethyl citrate, 2-ethylhexyl succinate, amyl acetate, ethyl acetate, butyl acetate, diisopropyl sebacate, di-2-ethylhexyl sebacate, myristyl lactate, isononyl isononanoate, isopropyl palmitate, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, 2-heptylundecyl palmitate, dipentaerythritol fatty acid ester, isopropyl myristate, octyldodecyl myristate, hexyldecyl dimethyloctanoate, ethyl laurate, hexyl laurate, N-lauroyl-L- Glutamic acid-2-octyldodecyl ester, diisostearyl malate, waxes include carnauba wax, kapok wax, sugar cane wax, paraffin wax, ceresin, Examples include ozokerite, microcrystalline wax, candelilla wax, polyethylene, polypropylene, and synthetic hydrocarbon wax. Examples of silicone oils include dimethylpolysiloxane, methylphenylpolysiloxane, fluorine-modified organopolysiloxane, alkyl-modified organopolysiloxane, amino-modified organopolysiloxane, amodimethicone, fluorine-modified dimethiconol, and silicone gum.

  As the pigment used in the oily cosmetic of the present invention, if it is used in normal cosmetics, its shape (spherical, rod-like, needle-like, plate-like, irregular shape, scale-like, spindle-like, etc.) and particles Regardless of diameter (smoke, fine particles, pigment grade, etc.) and particle structure (porous, non-porous, etc.), any of them can be used. For example, inorganic powder, organic powder, surfactant metal Salt powder, colored pigments, pearl pigments, metal powder pigments, natural dyes, etc. are mentioned. Specific examples of inorganic powders include pigment grade titanium oxide, zirconium oxide, pigment grade zinc oxide, cerium oxide, magnesium oxide. , Barium sulfate, calcium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, talc, mica, kaolin, sericite, muscovite, synthetic mica, phlogopite, phlogopite, biotite, lithia mica, silicic acid, silicic anhydride, Ke Aluminum silicate, Magnesium silicate, Magnesium aluminum silicate, Calcium silicate, Barium silicate, Strontium silicate, Metal tungstate, Hydroxyapatite, Vermiculite, Hydrite, Bentonite, Montmorillonite, Hectorite, Zeolite, Ceramic powder, No. Calcium diphosphate, alumina, aluminum hydroxide, boron nitride, boron nitride, silica, fine particle titanium oxide, fine particle low-order titanium oxide, fine particle zinc oxide, fine particle cerium oxide, fine particle activity-inhibited cerium oxide, etc .; As organic powder, polyamide Powder, polyester powder, polyethylene powder, polypropylene powder, polystyrene powder, polyurethane powder, benzoguanamine powder, polymethylbenzo Anamin powder, polytetrafluoroethylene powder, polymethyl methacrylate powder, cellulose, silk powder, nylon powder, 12 nylon, 6 nylon, silicone powder, silicone rubber powder, silicone elastomer spherical powder, polymethylsilsesquioxane spherical powder , Polyalkylsilsesquioxane powder, styrene / acrylic acid copolymer, divinylbenzene / styrene copolymer, vinyl resin, urea resin, phenol resin, fluorine resin, silicon resin, acrylic resin, melamine resin, epoxy resin , Polycarbonate resin, microcrystalline fiber powder, starch powder, lauroyl lysine, etc .; surfactant metal salt powder (metal soap) includes zinc stearate, aluminum stearate, calcium stearate, steer Magnesium phosphate, zinc myristate, magnesium myristate, zinc cetyl phosphate, calcium cetyl phosphate, sodium cetyl phosphate, etc .; as colored pigments, iron oxide, iron hydroxide, inorganic red pigments of iron titanate, iron oxide, etc. Inorganic brown pigments, inorganic yellow pigments such as yellow iron oxide and ocher, inorganic black pigments such as black iron oxide and carbon black, inorganic purple pigments such as manganese violet and cobalt violet, chromium hydroxide, chromium oxide, cobalt oxide, Inorganic green pigments such as cobalt titanate, inorganic blue pigments such as bitumen and ultramarine blue, tar dyes raked, natural dyes raked, and synthetic resin powders obtained by combining these powders Pearl pigments include titanium oxide-coated mica, titanium oxide-coated mica, bismuth oxychloride, titanium oxide coating Bismuth oxychloride, titanium oxide coated talc, fish scale foil, titanium oxide coated colored mica, etc .; As tar pigments, red No. 3, red No. 104, red No. 106, red No. 201, red No. 202, red No. 204, red 205 No., Red No. 220, Red No. 226, Red No. 227, Red No. 228, Red No. 230, Red No. 401, Red No. 505, Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 203, Yellow No. 204, Yellow No. 401, Blue No. 1, Blue No. 2, Blue No. 201, Blue No. 404, Green No. 3, Green No. 201, Green No. 204, Green No. 205, Orange No. 201, Orange No. 203, Orange No. 204, Orange No. 206 No., Orange No. 207, etc .; Examples of natural pigments include pigments selected from carminic acid, laccaic acid, calsamine, bradylin, crocin and the like. These pigments include, for example, fluorine compound treatment (perfluoroalkyl phosphate treatment, perfluoroalkylsilane treatment, perfluoropolyether treatment, fluorosilicone treatment, and fluorinated silicone resin treatment), silicone treatment (methylhydrogenpolysiloxane). Treatment, dimethylpolysiloxane treatment, vapor phase tetramethyltetrahydrogencyclotetrasiloxane treatment is preferred, silicone resin treatment (trimethylsiloxysilicate treatment is preferred), pendant treatment (addition of an alkyl chain, etc. after vapor phase silicone treatment) Silane coupling agent treatment, titanium coupling agent treatment, silane treatment (alkyl silane or alkylsilazane treatment is preferred), oil agent treatment, N-acylated lysine treatment, polyacrylic acid treatment Surface treatment is preferably performed by metal soap treatment (preferably stearic acid or myristic acid salt), acrylic resin treatment, metal oxide treatment, agar treatment, deoxyribonucleic acid treatment, and more preferably, a combination of these treatments. Are preferably used.

  Examples of the physiologically active ingredient used in the oily cosmetic composition of the present invention include substances that impart some physiological activity to the skin when applied to the skin. For example, anti-inflammatory agent, anti-aging agent, squeeze agent, hair growth agent, hair restorer, moisturizer, blood circulation promoter, antibacterial agent, bactericidal agent, desiccant, cooling agent, warming agent, vitamins, amino acid, wound Examples include healing promoters, stimulus-relieving agents, analgesics, cell activators, enzyme components, and hair removal agents.

  The oily cosmetic used in the oily cosmetic of the present invention may contain an oily gelling agent, a resin, and an elastomer. These components not only improve the sustainability of the cosmetic, but also have an effect of improving the touch and concealing wrinkles. Examples of oily gelling agents include silicone-based pullulan, polyamide-modified silicone, oxazoline-modified silicone, acrylated silicone, alkyl-acrylic co-modified silicone, urethane-modified silicone, alkyl-modified silicone and other silicone compounds, aluminum stearate, magnesium Metal soap such as stearate, zinc myristate, amino acid derivatives such as N-lauroyl-L-glutamic acid, α, γ-di-n-butylamine, dextrin palmitate, dextrin stearate, dextrin 2-ethylhexanoate palmitate Dextrin fatty acid esters such as acid esters, sucrose fatty acid esters such as sucrose palmitate, sucrose stearate, monobenzylidene sorbitol, diben Examples include benzylidene derivatives of sorbitol such as dilidene sorbitol, organically modified clay minerals such as dimethylbenzyl dodecyl ammonium montmorillonite clay, dimethyl dioctadecyl ammonium montmorillonite, octadecyl dimethyl benzyl ammonium montmorillonite, silica, silane-treated silica, and silicone-treated silica. Examples of the elastomer include silicone gel, crosslinked silicone powder, crosslinked polyether-modified silicone, and crosslinked polyglyceryl-modified silicone.

  Examples of the humectant used in the oily cosmetic composition of the present invention include ethylene glycol, propylene glycol, butylene glycol, diethylene glycol, dipropylene glycol, glycerin, diglycerin, sorbitol, malbitol, trimethylglycine, trehalose, raffinose, xylitol, mannitol, hyaluron. Examples thereof include acids and salts thereof, glycols such as polyethylene glycol and polyglycerin, and polysaccharides.

  Among the components used in the oily cosmetics of the present invention, waxes having a melting point in the range of 50 to 90 ° C. at room temperature and normal pressure (25 ° C., 1 atm) were blended, and the production method of the present invention was used in combination In this case, there is a merit that a product that is particularly excellent in touch can be obtained without sacrificing the strength and quality of the product. Among waxes having a melting point in this range, paraffin, ceresin, ozokerite, microcrystalline wax, candelilla wax, polyethylene, and synthetic hydrocarbon wax are excellent in compatibility with the production method of the present invention. It is preferable to blend one or more of these. In addition, these waxes have various melting points regardless of whether they are synthetic or natural. In the present invention, those waxes that are purified so that the melting point at room temperature and normal pressure is in the range of 50 to 90 ° C. are used. Is preferred. These waxes exhibit excellent properties not only in feel and quality, but also in releasability from the rod-shaped back filling container. The blending amount of these waxes may be in the range of 5 to 30% by mass with respect to the total amount of the oily cosmetic, and more preferably 12 to 18% by mass.

  The method of filling the rod-shaped back filling container of the present invention in a metal mold and pouring the oily cosmetic directly into the rod-shaped back filling container can be used for cosmetics having any shape of stick or stick. For example, lipstick, lip balm, foundation, eye color, eyebrow, eyeliner, eye shadow, mascara, concealer, sunscreen agent, makeup base material, hair cosmetics (teak color, pomade, etc.), antiperspirant, hair remover It is used suitably for etc.

Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. Note that the present invention is not limited to this.
Moreover, each comparative example used the sample obtained by shape | molding by the method of directly cooling the resin container which filled the contents in the state without a metal type | mold with the cooling air of 3 degreeC.

The evaluation methods used in the examples and comparative examples are shown below.
(Appearance property evaluation method Example 1 and Comparative Example 1)
The appearance properties of each of the 50 samples from which the resin-made capsules were removed were visually evaluated by a professional evaluator. Judgment criteria are as follows. The results are shown in Table 2.
◎: There is no trace of adhesion to the mold ○: Trace of adhesion to the mold is observed, but there is no problem Δ: Trace of adhesion to the mold remains *: Trace of adhesion to the mold Remarkably remains

(Appearance property evaluation method Example 2 and Comparative Example 2)
About each 50 rod-shaped foundation which raised the full length, the external appearance property evaluation was performed visually by the expert evaluator. Judgment criteria are as follows. The results are shown in Table 5.
◎: Stick surface is uniform and there is no trace of adhesion to the inner wall of the resin container ○: Trace of adhesion remains slightly on the stick surface, but no problem △: Trace of adhesion remains slightly on the stick surface X: Traces of adhesion remain on the stick surface

(Feel evaluation method)
Ten professional evaluators were used to evaluate the feeling of application and ease of application. As an evaluation method, each professional evaluator is given a score of 10 points, and the evaluation is made between 0 points of badness to 10 points that are very good, and the average points of all evaluators (rounded off the decimal point) Was the evaluation result. Therefore, the higher the score, the higher the evaluation.

Example 1 and Comparative Example 1
A rod-shaped lipstick was manufactured according to the formulation and manufacturing method shown in Table 1. In addition, 3 mass% N-lauroyl-L-lysine treated pigment was used as the pigment. As the wax, paraffin having a melting point of about 68 ° C. under normal temperature and normal pressure, ceresin at about 75 ° C., and candelilla wax at about 70 ° C. were used. The evaluation results are shown in Tables 2 and 3.

(Production method)
A: Components 1 to 8 are dissolved by heating at 90 ° C.
B: Component 9 is added to A and kneaded with a three-roller, then melted at 80 ° C., and after deaeration, component 10 is added.
C: B is dissolved again at 80 ° C., and as shown in FIG. 1, a resin container enclosed in a metal mold cooled to 3 ° C. (the interval between the container and the metal mold is 0.3 mm) The mold was air-cooled with cold air at 5 ° C., and the mold temperature was kept at 3 to 5 ° C., and then the resin-made capsule was removed to obtain a rod-shaped lipstick.

  Moreover, Example 1 was very excellent in the releasability of the oily cosmetic material from the resin-made capsule as compared with Comparative Example 1.

Example 2 and Comparative Example 2
A stick foundation was produced according to the formulation and production method shown in Table 4. In addition, the agar 2 mass% processed pigment was used as a pigment. As the wax, candelilla wax having a melting point of about 70 ° C. under normal temperature and pressure, ceresin at about 85 ° C., polyethylene at about 80 ° C., and paraffin at about 52 ° C. were used. The evaluation results are shown in Tables 5 and 6.

(Production method)
A: Components 1 to 8 are dissolved by heating at 90 ° C.
B: Component 9 is added to A and kneaded with a three-roller.
C: B is dissolved again at 80 ° C., and as shown in FIG. 2, a resin container enclosed in a metal mold cooled to 5 ° C. (the distance between the container and the metal mold is 0.3 mm) ), And the mold was cooled with 3 ° C. cold water to maintain the mold temperature at 3 to 5 ° C., and then a stick foundation was obtained.

From the results of Examples and Comparative Examples, it can be seen that the Examples of the present invention have a beautiful appearance, have few traces of adhesion to the inner wall of the resin container, and are excellent in releasability. Moreover, since the cooling rate is large, it can be seen that the production time is short and the production efficiency is high. On the other hand, in the case of using the cooling method using only the cooling air, which has been frequently used in both Comparative Examples 1 and 2, it can be seen that the yield of non-defective products is poor and the production efficiency is also poor.
From the above, the method for producing a rod-like oily cosmetic of the present invention wraps a rod-shaped backfilling container in a metal mold having excellent heat conductivity and rapidly cools it, thereby rapidly and uniformly unevenly filling the oily cosmetic. It is clear that a rod-like oily cosmetic can be obtained that can be cooled quickly, has excellent appearance in a short time, has high production efficiency, has excellent releasability, has a good feel, and has few traces due to adhesion to the inner wall of the resin container It is.

FIG. 3 is a schematic cross-sectional view showing the situation of Example 1 in which a resin lipstick capsule forming container is used as a rod-shaped back filling container included in a metal mold. It is a schematic sectional drawing which shows the condition of Example 2 using the container for resin stick foundations as a rod-shaped back filling container included in a metal mold.

Claims (8)

It is characterized by encapsulating a rod-shaped back-filling container in a metal mold, pouring molten oily cosmetic material, and cooling it continuously from inside and / or outside of the metal mold to solidify and mold the oily cosmetic material. A method for producing a stick-like oily cosmetic. 2. The method for producing a rod-like oily cosmetic according to claim 1, wherein the oily cosmetic contains one or more waxes having a melting point of 50 to 90 ° C. at normal temperature and pressure. The wax having a melting point in the range of 50 to 90 ° C. at normal temperature and pressure is at least one selected from paraffin, ceresin, ozokerite, microcrystalline wax, candelilla wax, polyethylene and synthetic hydrocarbon wax. The manufacturing method of the rod-shaped oily cosmetics of Claim 2 to do. The method for producing a rod-like oily cosmetic according to claim 2 or 3, wherein the wax is refined so that the melting point at room temperature and normal pressure is in the range of 50 to 90 ° C. The method for producing a rod-like oily cosmetic according to any one of claims 1 to 4, wherein the metal mold is cooled in advance so as to be in a range of -20 to 15 ° C. The method for producing a rod-like oily cosmetic according to any one of claims 1 to 5, wherein the cooling is performed so that the outside temperature of the metal mold is in the range of 3 to 20 ° C. It is designed so that the space | interval of a rod-shaped back-filling container and metal molds may be in the range of 0.1 to 1.0 mm, The rod shape according to any one of claims 1 to 6 A method for producing oily cosmetics. The rod-shaped oily cosmetics manufactured by the method of any one of Claims 1-7.

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