Cosmetic refill and preparation process thereof

Abstract

The invention discloses a cosmetic refill and a preparation process thereof. The weight content of powder raw materials in the cosmetic refill is larger than or equal to 85%. Wherein the powdery raw material comprises powdery metal soap salt or a raw material treated by the metal soap salt, and the weight content of the metal soap salt relative to the total weight of the cosmetic refill is 1-40%; the powder raw material further comprises a coloring agent, and the weight content of the coloring agent relative to the total weight of the cosmetic refill is larger than or equal to 1%. Powder in the powder raw material is adhered through metal soap salt. The content of powder raw materials in the cosmetic refill is larger than or equal to 85%, when the cosmetic refill is used, a smooth touch feeling is generated with the skin, the natural powder feeling makeup effect is achieved, and the refill has good strength and impact resistance. The cosmetic refill is simple in preparation process, easy to operate and convenient for industrial production.

Description

Technical Field

[0001] The invention relates to the technical field of cosmetics, and in particular to a cosmetic pen core and a preparation process thereof. Background Art

[0002] Makeup pens are very important for professional image designers. There are many types of makeup pens: for drawing lip contours, for drawing the entire eyelid, for drawing eyebrows, and for correcting eye makeup and its defects. Compared with professional makeup brushes, makeup pens are popular because they are simple, convenient and easy to master. Moreover, most makeup pens are easy to carry, so they have become an indispensable element in many women's makeup bags. People who love beauty can touch up their makeup at any time to show perfection.

[0003] With the development of society, people's pursuit of material and spiritual is gradually improving, and cosmetics brushes have become an important part of human life. As a result, they are used by more and more people who love beauty and fashion. With the rise of domestic cosmetics and the introduction of foreign brands, they have a very strong ability to promote new products. The entire cosmetics industry chain is showing a trend of development.

[0004] In today's era of rapid development of cosmetics, people have higher and higher requirements for the quality of cosmetics. Convenience, speed and good skin feel have always been the demands of consumers. Cosmetic pencils with good skin feel and good durability are more popular among consumers. Eyebrow cosmetic pencils with oil-wax system are already very common in the market, but their makeup effect is relatively stiff and not natural enough. Although eyebrow powder can achieve a relatively soft and natural makeup, it is extremely inconvenient to use and requires high makeup skills. Therefore, it has become an urgent need for consumers to develop a cosmetic pencil core with high powder content, strong powder feeling and natural makeup effect. Summary of the invention

[0005] In order to solve the defects existing in the prior art, the purpose of the present invention is to provide a cosmetic pen core with high powder content and strong powder feeling, the powder raw material content in the product system is ≥85%, when used, it produces a silky touch with the skin, has a natural powdery makeup effect, and the pen core has good strength and impact resistance. In addition, the present invention also provides a preparation process of the above-mentioned cosmetic pen core with high powder content and strong powder feeling, the preparation process is simple, easy to operate, and convenient for industrial production.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] In a first aspect of the present invention, a cosmetic pen core is provided, wherein the weight content of powder raw materials in the cosmetic pen core is ≥ 85%;

[0008] The powder raw material includes powdered metal soap salt or raw material treated with metal soap salt, and the weight content of the metal soap salt or raw material treated with metal soap salt is 1 to 40% relative to the total weight of the cosmetic pen core;

[0009] The powder raw material also includes a colorant, and the weight content of the colorant relative to the total weight of the cosmetic pen core is ≥ 1%;

[0010] The powders in the powder raw materials are bonded together by metal soap salts.

[0011] Using the above technical solution:

[0012] The existing oil-wax system eyebrow makeup pen core has a low content of powder raw materials in the product system. In order to ensure the smoothness of the product during molding and application, a large amount of wax and oil are added to the product system. When used, the makeup effect has a poor powdery feel and is relatively stiff and unnatural.

[0013] In the present application, the weight content of powder raw materials in the cosmetic pen core is ≥85%. When the powder content is high, it is not easy to form. By adding metal soap salt to the product system, on the one hand, the high-content powder raw materials can be evenly dispersed in the system. At the same time, during the molding process of the cosmetic pen core, the metal soap salt adheres to the powder, making the cosmetic pen core easy to mold, and improving the impact resistance of the core, and achieving the effect of not being easy to break.

[0014] Furthermore, the breaking force of the cosmetic pen core is ≥30g / 1mm, and the hardness is ≥600g / 1mm.

[0015] Furthermore, the powder raw materials also include fillers, including but not limited to: mica, sericite, synthetic fluorphlogopite, talc, hydroxyapatite, magnesium carbonate, magnesium trisilicate, aluminum silicate, calcium silicate, calcium phosphate, hydrotalcite, mineral clay, synthetic clay, kaolin, calcium carbonate, silica, boron nitride, starch, modified starch, nylon powder, polymethyl methacrylate, polymethyl methacrylate cross-linked copolymer, polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer, polymethyl silsesquioxane, polyurethane powder, lauroyl lysine, aluminum oxide, barium sulfate, bismuth oxychloride, magnesium oxide, and one or more of magnesium sulfate.

[0016] In the product system, a small amount of conventional raw material components such as grease and wax used for cosmetic pen refills can be selectively added according to specific use needs; or grease, wax and other components may not be added to the product system.

[0017] Furthermore, the metal soap salt is one or more of aluminum, zinc, calcium, magnesium, iron, and copper metal soap salts.

[0018] Preferably, the metal soap salt is zinc metal soap salt and / or magnesium metal soap salt.

[0019] The raw materials treated with metal soap salts refer to raw materials whose surface is modified by using metal soap salts as a treatment agent through physical or chemical methods.

[0020] "Metallic soap" is a salt of a metal (excluding alkali metals) of a saturated or unsaturated higher fatty acid. The higher fatty acid constituting the metal soap is not particularly limited, but examples thereof include saturated and / or unsaturated higher fatty acids having 8 to 24 carbon atoms, particularly 12 to 18 carbon atoms, such as stearic acid, isostearic acid, myristic acid, lauric acid, etc. The metal constituting the metal soap is preferably a salt of aluminum, calcium, magnesium, or zinc.

[0021] Metal soap salts are compounds composed of metal ions and organic acid radical ions (soap groups). Metal ions can form coordination bonds with organic acid radical ions, and various components in the system are bonded together through coordination. At the same time, metal soap salt molecules usually have a large molecular weight and a complex structure, which can form a cross-linked network structure to increase the strength and stability of their bonding. In addition, the organic acid radical ions in the metal soap salt molecules can interact with other components through hydrogen bonds and van der Waals forces to increase the bonding force, thereby increasing the impact resistance of the pen core to achieve the effect of not being easy to break.

[0022] Furthermore, the colorant includes but is not limited to: inorganic pigments, organic pigments and pearlescent pigments.

[0023] The inorganic pigments include but are not limited to titanium dioxide, red iron oxide, yellow iron oxide, black iron oxide, ultramarine blue, manganese violet and one or more combinations thereof.

[0024] The organic pigments include but are not limited to one or more combinations of Red 6, Red 7, Red 28, Red 40, Yellow 5, Yellow 6, etc.

[0025] The pearlescent pigments include, but are not limited to, one or more combinations of glass-based pearlescent pigments, mica-based pearlescent pigments, and the like.

[0026] The second aspect of the present invention provides a process for preparing the above-mentioned cosmetic pen core, comprising the following steps:

[0027] S1, mixing the raw materials in the cosmetic pen core evenly to obtain a mixed raw material;

[0028] S2, extruding and cutting the mixed raw materials to obtain a cosmetic pen core;

[0029] The process conditions for extrusion molding are: pressure: 0.5~100MPa.

[0030] Specifically, the process conditions for extrusion molding are: temperature: 30-350° C., pressure: 0.5-100 MPa. Preferably, the process conditions for extrusion molding are: temperature: 80-350° C., pressure: 10-80 MPa.

[0031] Using the above technical solution:

[0032] First, the raw materials in the cosmetic pen core are mixed. The metal soap salt has a lubricating effect, which can make the high-content powder raw materials evenly dispersed in the system. In the subsequent cosmetic pen core molding process, the metal soap salt adheres to the powder, making the cosmetic pen core easier to mold, and improving the impact resistance of the core and achieving the effect of not being easy to break.

[0033] Furthermore, the cosmetic pen core obtained in step S2 is subjected to heat treatment and cooling treatment.

[0034] Wherein, in the heat treatment process, the treatment temperature is 35-80°C, and the treatment time is ≥5min; in the cooling treatment process, the treatment temperature is -30-5°C, and the treatment time is ≥5min.

[0035] Preferably, in the heat treatment process, the treatment temperature is 40-70°C, and the treatment time is ≥10 min; in the cooling treatment process, the treatment temperature is -20-0°C, and the treatment time is ≥10 min.

[0036] After the heat treatment and cooling treatment processes, the strength of the formed cosmetic pen core can be further enhanced, thereby increasing the impact resistance of the pen core and achieving the effect of not being easy to break.

[0037] The cross-sectional shape of the cosmetic pen core includes a triangle, a quadrilateral, a polygon, a circle, an ellipse, and an irregular shape, and the maximum distance between any two points in the cross-sectional shape is 0.2 to 50 mm.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] (1) The cosmetic pen core prepared by the present invention can have a powder content of 85% or more. When used, it has a silky touch on the skin and a natural powdery makeup effect. The pen core has good strength and impact resistance, overcoming the shortcomings of the products in the prior art, such as low powder content, greasy and easy to agglomerate and fall off, and a relatively stiff and unnatural makeup effect.

[0040] (2) The cosmetic pen core of the present invention greatly reduces the amount of oil used, reduces the fusion with the oil secreted by the skin, and greatly improves the durability of the product;

[0041] (3) The preparation method of the present invention has a simple operation process, is easy to operate, and is more convenient for large-scale industrial production. DETAILED DESCRIPTION

[0042] The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. For those of ordinary skill in the art, without departing from the inventive concept, some changes and improvements can also be made, which all belong to the protection scope of the present invention. The endpoints and any values ​​of the ranges disclosed in this article are not limited to the precise range or value, and these ranges or values ​​should be understood to include values ​​close to these ranges or values. For numerical ranges, between the endpoint values ​​of each range, between the endpoint values ​​of each range and a separate point value, and between separate point values, one or more new numerical ranges can be combined with each other, and these numerical ranges should be regarded as specifically disclosed in this article, and the present invention is described in detail below in conjunction with specific embodiments:

[0043] The cosmetic pen refills prepared in each embodiment and comparative example were tested for breaking force and hardness using a texture analyzer. The breaking force test method is: fix the pen refill with a specific fixture, test and record it by compression, the test speed is 0.5mm / s, the trigger point load is 7g, and the test target value is 5mm; the hardness test method is: place the pen refill on a fixed platform, select a corresponding fixture, test and record it by compression, the test speed is 0.5mm / s, the trigger point load is 5g, and the test target value is 2mm.

[0044] The powdery makeup effect test and evaluation method of the cosmetic pen refills prepared in each embodiment and comparative example is as follows:

[0045] 30 volunteers, aged between 18 and 35 years old, including 10 people with oily, mixed and dry skin. The test environment temperature was 25±3℃; the humidity was 40-70%. Before the makeup test, the makeup was uniformly primed and then tested for feel. The testers' evaluation of the powdery effect of the eyebrow pencil was collected by observing the eyebrow makeup and conducting a questionnaire survey.

[0046] Powdery feeling judgment basis: if 24 or more people out of 30 people think the powdery feeling is good, then the product has a good powdery feeling. If 15 or more people out of 30 people but less than 24 people think the powdery feeling is good, then the product has a fair powdery feeling. If more than 15 people out of 30 people think the powdery feeling is bad, then the product has a bad powdery feeling.

[0047] Examples 1-6 and Comparative Examples 1-6

[0048] The components and amounts of the raw materials in the above examples and comparative examples are shown in Table 1.

[0049] The cosmetic pen refills in the above embodiments and comparative examples are prepared by the following steps:

[0050] The raw materials are mixed evenly, and then extruded, formed and cut to obtain the cosmetic pen core.

[0051] Among them, the extrusion molding process conditions in Examples 1-6 and Comparative Examples 1-3 are temperature: 100° C., pressure: 15 MPa.

[0052] Comparative Examples 4, 5, and 6 are comparative test examples of Example 3, wherein the extrusion molding process conditions of Comparative Example 4 are temperature: 20°C and pressure: 15MPa, the extrusion molding process conditions of Comparative Example 5 are temperature: 30°C and pressure: 15MPa, and the extrusion molding process conditions of Comparative Example 6 are temperature: 80°C and pressure: 15MPa.

[0053] The metal soap salt used in each embodiment and comparative example is zinc stearate. The colorant used is a mixture of yellow iron oxide, red iron oxide, black iron oxide and titanium dioxide, and the usage ratio is 1:2:3:5 for yellow iron oxide:red iron oxide:black iron oxide:titanium dioxide. The oil ester used is hydrogenated vegetable oil, and the wax used is synthetic wax and microcrystalline wax, and the usage ratio of the two is 2:1.

[0054] The powdery makeup effect test results of the cosmetic pen refills in Examples 1-6 and Comparative Examples 1-6 and the product breaking force and strength test results are shown in Table 1.

[0055] Table 1

[0056]

[0057] Example 7

[0058] The preparation process of the cosmetic pen core in this embodiment is as follows:

[0059] Zinc stearate is mixed evenly with red iron oxide, yellow iron oxide, black iron oxide, titanium dioxide, mica and talc, and then extruded and cut to obtain a cosmetic pen core.

[0060] The extrusion molding process conditions are as follows: temperature: 30°C, pressure: 0.5 MPa. The content of zinc stearate is 1% of the total weight; the weight ratio of iron oxide red: iron oxide yellow: iron oxide black: titanium dioxide: mica: talc is 1:2:3:5:7:6.

[0061] The obtained cosmetic pen core was tested and found to have a breaking force of 30 g / 1 mm, a hardness of 600 g / 1 mm, and a good powdery makeup effect.

[0062] Example 8

[0063] The preparation process of the cosmetic pen core in this embodiment is as follows:

[0064] The magnesium stearate is mixed evenly with red iron oxide, yellow iron oxide, black iron oxide, titanium dioxide, mica and talc, and then the mixture is extruded and cut to obtain a cosmetic pen core.

[0065] The extrusion molding process conditions are: temperature: 350°C, pressure: 80MPa. The content of magnesium stearate is 40% of the total weight; the weight ratio of iron oxide red: iron oxide yellow: iron oxide black: titanium dioxide: mica: talc is 1:2:3:5:7:6.

[0066] The obtained cosmetic pen core was tested and found to have a breaking force of 200 g / 1 mm and a hardness of 3000 g / 1 mm, and a good powdery makeup effect.

[0067] Example 9

[0068] The preparation process of the cosmetic pen core in this embodiment is as follows:

[0069] Zinc stearate is mixed evenly with red iron oxide, yellow iron oxide, black iron oxide, titanium dioxide, mica and talc, and then extruded and cut to obtain a cosmetic pen core.

[0070] The extrusion molding process conditions are: temperature: 150°C, pressure: 60MPa. The zinc oxide content is 20% of the total weight; the weight ratio of iron oxide red: iron oxide yellow: iron oxide black: titanium dioxide: mica: talc is 2:1:3:5:3:7.

[0071] The obtained cosmetic pen core was tested and found to have a breaking force of 120 g / 1 mm, a hardness of 1500 g / 1 mm, and a good powdery makeup effect.

[0072] Example 10

[0073] The preparation process of the cosmetic pen core in this embodiment is as follows:

[0074] Zinc stearate is mixed evenly with red iron oxide, yellow iron oxide, black iron oxide, titanium dioxide, mica and talc, and then extruded and cut to obtain a cosmetic pen core, and then the cut pen core is subjected to heat treatment and cooling treatment.

[0075] Extrusion molding process conditions: temperature: 30°C, pressure: 0.5MPa. Heat treatment process is 35°C, 10 minutes; cooling process is -5°C, 5 minutes. The zinc stearate content is 1% of the total weight; the weight ratio of iron oxide red: iron oxide yellow: iron oxide black: titanium dioxide: mica: talc is 1:2:3:5:7:6.

[0076] The obtained cosmetic pen core was tested and found to have a breaking force of 40 g / 1 mm, a hardness of 700 g / 1 mm, and a good powdery makeup effect.

[0077] Embodiment 11

[0078] The preparation process of the cosmetic pen core in this embodiment is as follows:

[0079] Magnesium stearate is mixed evenly with red iron oxide, yellow iron oxide, black iron oxide, titanium dioxide, mica and talc, and then extruded and cut to obtain a cosmetic pen core, and then the cut pen core is subjected to heat treatment and cooling treatment.

[0080] Extrusion molding process conditions: temperature: 350℃, pressure: 80MPa. Heat treatment process is 80℃, 5 minutes; cooling process is -30℃, 10 minutes. The content of magnesium stearate is 40% of the total weight; the weight ratio of iron oxide red: iron oxide yellow: iron oxide black: titanium dioxide: mica: talc is 1:2:3:5:7:6.

[0081] The obtained cosmetic pen core was tested and found to have a breaking force of 300 g / 1 mm, a hardness of 3300 g / 1 mm, and a good powdery makeup effect.

[0082] Example 12

[0083] The preparation process of the cosmetic pen core in this embodiment is as follows:

[0084] Zinc stearate is mixed evenly with red iron oxide, yellow iron oxide, black iron oxide, titanium dioxide, mica and talc, and then extruded and cut to obtain a cosmetic pen core, and then the cut pen core is subjected to heat treatment and cooling treatment.

[0085] Extrusion molding process conditions: temperature: 150℃, pressure: 60MPa. Heat treatment process is 60℃, 15 minutes; cooling process is -20℃, 15 minutes. The zinc stearate content is 20% of the total weight; the weight ratio of iron oxide red: iron oxide yellow: iron oxide black: titanium dioxide: mica: talc is 2:1:3:5:3:7.

[0086] The obtained cosmetic pen core was tested and found to have a breaking force of 140 g / 1 mm, a hardness of 1600 g / 1 mm, and a good powdery makeup effect.

[0087] Embodiment 13

[0088] The preparation process of the cosmetic pen core in this embodiment is as follows:

[0089] The mica treated with magnesium myristic acid is mixed evenly with iron oxide red, iron oxide yellow, iron oxide black and titanium dioxide, and then extruded and cut to obtain a cosmetic pen core, and then the cut core is subjected to heat treatment and cooling treatment.

[0090] The extrusion molding process conditions are as follows: temperature: 100°C, pressure: 20MPa. The heat treatment process is 60°C, 25 minutes; the cooling treatment process is -10°C, 25 minutes. The mica treated with magnesium myristic acid is 30% of the total weight, and the weight ratio of iron oxide red: iron oxide yellow: iron oxide black: titanium dioxide is 2:1:3:5.

[0091] The obtained cosmetic pen core was tested and found to have a breaking force of 150 g / 1 mm, a hardness of 1800 g / 1 mm, and a good powdery makeup effect.

[0092] Embodiment 14

[0093] The preparation process of the cosmetic pen core in this embodiment is as follows:

[0094] Magnesium myristic acid, zinc stearate, magnesium stearate, mica, red iron oxide, yellow iron oxide, black iron oxide and titanium dioxide are mixed evenly, extruded and cut to obtain cosmetic pen cores. The cut cores are subjected to heat treatment and cooling treatment.

[0095] Extrusion molding process conditions: temperature: 100°C, pressure: 20MPa. Heat treatment process is 60°C, 25 minutes; cooling process is -10°C, 25 minutes. Among them, magnesium myristic acid, zinc stearate and magnesium stearate are 20% of the total weight; the weight ratio of magnesium myristic acid: zinc stearate: magnesium stearate is 1:1:1. The weight ratio of iron oxide red: iron oxide yellow: iron oxide black: titanium dioxide is 2:1:3:5.

[0096] The obtained cosmetic pen core was tested and found to have a breaking force of 180 g / 1 mm, a hardness of 2000 g / 1 mm, and a good powdery makeup effect.

[0097] Embodiment 15

[0098] The preparation process of the cosmetic pen core in this embodiment is as follows:

[0099] Magnesium myristic acid, zinc stearate, magnesium stearate, synthetic fluorphlogopite, boron nitride, mica, silica, red iron oxide, yellow iron oxide, black iron oxide and titanium dioxide are mixed evenly, extruded and cut to obtain cosmetic pen cores. The cut pen cores are subjected to heat treatment and cooling treatment.

[0100] Extrusion molding process conditions: temperature: 100°C, pressure: 20MPa. Heat treatment process is 60°C, 25 minutes; cooling process is -10°C, 25 minutes. Among them, magnesium myristic acid, zinc stearate and magnesium stearate account for 15% of the total weight; the weight ratio of magnesium myristic acid: zinc stearate: magnesium stearate is 1:2:1. The weight ratio of iron oxide red: iron oxide yellow: iron oxide black: titanium dioxide: synthetic fluorphlogopite: boron nitride: mica: silica is 2:1:3:5:1:3:2:1.

[0101] The obtained cosmetic pen core was tested and found to have a breaking force of 175 g / 1 mm, a hardness of 2000 g / 1 mm, and a good powdery makeup effect.

[0102] Example 16

[0103] The preparation process of the cosmetic pen core in this embodiment is as follows:

[0104] Magnesium myristic acid, zinc stearate, magnesium stearate, synthetic fluorphlogopite, boron nitride, mica, polymethyl methacrylate cross-linked copolymer, red iron oxide, yellow iron oxide, black iron oxide and titanium dioxide are mixed uniformly, extruded and cut to obtain a cosmetic pen core. The cut cosmetic pen core is subjected to heat treatment and cooling treatment.

[0105] Extrusion molding process conditions: temperature: 100°C, pressure: 20MPa. Heat treatment process is 60°C, 25 minutes; cooling process is -10°C, 25 minutes. Among them, magnesium myristic acid, zinc stearate and magnesium stearate account for 20% of the total weight; the weight ratio of magnesium myristic acid: zinc stearate: magnesium stearate is 1:2:1. The weight ratio of iron oxide red: iron oxide yellow: iron oxide black: titanium dioxide: synthetic fluorphlogopite: boron nitride: mica: polymethyl methacrylate cross-linked copolymer is 2:1:3:5:1:3:2:1.

[0106] The obtained cosmetic pen core was tested and found to have a breaking force of 175 g / 1 mm, a hardness of 2000 g / 1 mm, and a good powdery makeup effect.

[0107] Embodiment 17

[0108] The preparation process of the cosmetic pen core in this embodiment is as follows:

[0109] Magnesium myristic acid, zinc stearate, magnesium stearate, synthetic fluorphlogopite, boron nitride, mica, kaolin, red iron oxide, yellow iron oxide, black iron oxide and titanium dioxide are mixed evenly, extruded and cut to obtain a cosmetic pen core. The cut cosmetic pen core is subjected to heat treatment and cooling treatment.

[0110] Extrusion molding process conditions: temperature: 100℃, pressure: 20MPa. Heat treatment process is 60℃, 25 minutes; cooling process is -10℃, 25 minutes. Among them, magnesium myristic acid, zinc stearate and magnesium stearate are 20% of the total weight; the weight ratio of magnesium myristic acid: zinc stearate: magnesium stearate is 1:2:1. The weight ratio of iron oxide red: iron oxide yellow: iron oxide black: titanium dioxide: synthetic fluorphlogopite: boron nitride: mica: kaolin is 2:1:3:5:1:3:2:1.

[0111] The obtained cosmetic pen core was tested and found to have a breaking force of 185 g / 1 mm and a hardness of 1900 g / 1 mm, and a good powdery makeup effect.

[0112] Embodiment 18

[0113] The preparation process of the cosmetic pen core in this embodiment is as follows:

[0114] Magnesium myristic acid, zinc stearate, magnesium stearate, synthetic fluorphlogopite, boron nitride, mica, polymethyl methacrylate, red iron oxide, yellow iron oxide, black iron oxide and titanium dioxide are mixed evenly, extruded and cut to obtain a cosmetic pen core. The cut cosmetic pen core is subjected to heat treatment and cooling treatment.

[0115] Extrusion molding process conditions: temperature: 100℃, pressure: 20MPa. Heat treatment process is 60℃, 25 minutes; cooling process is -10℃, 25 minutes. Among them, magnesium myristic acid, zinc stearate and magnesium stearate account for 20% of the total weight; the weight ratio of magnesium myristic acid: zinc stearate: magnesium stearate is 1:2:1. The weight ratio of iron oxide red: iron oxide yellow: iron oxide black: titanium dioxide: synthetic fluorphlogopite: boron nitride: mica: polymethyl methacrylate is 2:1:3:5:1:3:2:2.

[0116] The obtained cosmetic pen core was tested and found to have a breaking force of 185 g / 1 mm and a hardness of 1900 g / 1 mm, and a good powdery makeup effect.

[0117] Embodiment 19

[0118] The preparation process of the cosmetic pen core in this embodiment is as follows:

[0119] Magnesium myristic acid, zinc stearate, magnesium stearate, synthetic fluorphlogopite, boron nitride, mica, polymethyl methacrylate, red iron oxide, yellow iron oxide, black iron oxide and titanium dioxide are mixed evenly, extruded and cut to obtain a cosmetic pen core. The cut cosmetic pen core is subjected to heat treatment and cooling treatment.

[0120] Extrusion molding process conditions, pressure: 100MPa. Heat treatment process is 60℃, 25 minutes; cooling process is -10℃, 25 minutes. Among them, magnesium myristic acid, zinc stearate and magnesium stearate are 20% of the total weight; the weight ratio of magnesium myristic acid: zinc stearate: magnesium stearate is 1:2:1. The weight ratio of iron oxide red: iron oxide yellow: iron oxide black: titanium dioxide: synthetic fluorphlogopite: boron nitride: mica: polymethyl methacrylate is 2:1:3:5:1:3:2:2.

[0121] The obtained cosmetic pen core was tested and found to have a breaking force of 80 g / 1 mm and a hardness of 1000 g / 1 mm, and a good powdery makeup effect.

[0122] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cosmetic pen refill, characterized in that: The weight content of the powder raw material in the cosmetic pen core is ≥ 85%; The powder raw material includes powdered metal soap salt or raw material treated with metal soap salt, and the weight content of the metal soap salt or raw material treated with metal soap salt is 1 to 40% relative to the total weight of the cosmetic pen core; The powder raw material also includes a colorant, and the weight content of the colorant relative to the total weight of the cosmetic pen core is ≥ 1%; The powders in the powder raw materials are bonded together by metal soap salts.

2. The cosmetic pencil refill according to claim 1, characterized in that: The breaking force of the cosmetic pen core is ≥30g / 1mm, and the hardness is ≥600g / 1mm.

3. The cosmetic pencil refill according to claim 1, characterized in that: The powder raw materials also include fillers, and the fillers are one or more of mica, sericite, synthetic fluorphlogopite, talc, hydroxyapatite, magnesium carbonate, magnesium trisilicate, aluminum silicate, calcium silicate, calcium phosphate, hydrotalcite, mineral clay, synthetic clay, kaolin and calcium carbonate, silica, boron nitride, starch, modified starch, nylon powder, polymethyl methacrylate, polymethyl methacrylate cross-linked copolymer, polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer, polymethyl silsesquioxane, polyurethane powder, lauroyl lysine, aluminum oxide, barium sulfate, bismuth oxychloride, magnesium oxide, and magnesium sulfate.

4. The cosmetic pencil refill according to claim 1, characterized in that: The metal soap salt is one or more of aluminum, zinc, calcium, magnesium, iron and copper metal soap salts.

5. The cosmetic pencil refill according to claim 4, characterized in that: The metal soap salt is zinc metal soap salt and / or magnesium metal soap salt.

6. The cosmetic pencil refill according to claim 1, characterized in that: The colorant includes inorganic pigments, organic pigments and pearlescent pigments.

7. A process for preparing a cosmetic pencil core as claimed in any one of claims 1 to 6, characterized in that: The steps include: S1, mixing the raw materials in the cosmetic pen core evenly to obtain a mixed raw material; S2, extruding and cutting the mixed raw materials to obtain a cosmetic pen core; The process conditions for extrusion molding are: pressure: 0.5~100MPa.

8. The preparation process of the cosmetic pencil core according to claim 7, characterized in that: The process conditions of extrusion molding are: temperature of 30-350°C and pressure of 10-80MPa.

9. The preparation process of the cosmetic pencil core according to claim 7, characterized in that: The cosmetic pen core obtained in step S2 is subjected to heat treatment and cooling treatment.

10. The preparation process of the cosmetic pencil core according to claim 9, characterized in that: In the heat treatment process, the treatment temperature is 35 to 80°C, and the treatment time is ≥5min; in the cooling treatment process, the treatment temperature is -30 to 5°C, and the treatment time is ≥5min.

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