CN113749379B - Double-color sandwich eyebrow pencil lead and preparation method thereof - Google Patents
Double-color sandwich eyebrow pencil lead and preparation method thereof Download PDFInfo
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- CN113749379B CN113749379B CN202110858116.9A CN202110858116A CN113749379B CN 113749379 B CN113749379 B CN 113749379B CN 202110858116 A CN202110858116 A CN 202110858116A CN 113749379 B CN113749379 B CN 113749379B
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- color
- toner
- pencil lead
- eyebrow pencil
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- 210000004709 eyebrow Anatomy 0.000 title claims abstract description 85
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000003086 colorant Substances 0.000 claims abstract description 21
- 230000007704 transition Effects 0.000 claims abstract description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 33
- VYFYYTLLBUKUHU-UHFFFAOYSA-N dopamine Chemical compound NCCC1=CC=C(O)C(O)=C1 VYFYYTLLBUKUHU-UHFFFAOYSA-N 0.000 claims description 32
- 239000011248 coating agent Substances 0.000 claims description 30
- 238000000576 coating method Methods 0.000 claims description 30
- 239000002245 particle Substances 0.000 claims description 30
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 25
- 239000006185 dispersion Substances 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- 239000000178 monomer Substances 0.000 claims description 19
- 238000001125 extrusion Methods 0.000 claims description 18
- 238000000465 moulding Methods 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 18
- PFTAWBLQPZVEMU-DZGCQCFKSA-N (+)-catechin Chemical compound C1([C@H]2OC3=CC(O)=CC(O)=C3C[C@@H]2O)=CC=C(O)C(O)=C1 PFTAWBLQPZVEMU-DZGCQCFKSA-N 0.000 claims description 17
- ADRVNXBAWSRFAJ-UHFFFAOYSA-N catechin Natural products OC1Cc2cc(O)cc(O)c2OC1c3ccc(O)c(O)c3 ADRVNXBAWSRFAJ-UHFFFAOYSA-N 0.000 claims description 17
- 235000005487 catechin Nutrition 0.000 claims description 17
- 229950001002 cianidanol Drugs 0.000 claims description 17
- 239000000843 powder Substances 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 17
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 16
- 229960003638 dopamine Drugs 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 14
- 238000011049 filling Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- 230000008014 freezing Effects 0.000 claims description 9
- 238000007710 freezing Methods 0.000 claims description 9
- 239000012752 auxiliary agent Substances 0.000 claims description 8
- 239000010445 mica Substances 0.000 claims description 8
- 229910052618 mica group Inorganic materials 0.000 claims description 8
- 229940089951 perfluorooctyl triethoxysilane Drugs 0.000 claims description 8
- AVYKQOAMZCAHRG-UHFFFAOYSA-N triethoxy(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)silane Chemical compound CCO[Si](OCC)(OCC)CCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F AVYKQOAMZCAHRG-UHFFFAOYSA-N 0.000 claims description 8
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000001993 wax Substances 0.000 claims description 7
- 229910052582 BN Inorganic materials 0.000 claims description 6
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 6
- ZAKOWWREFLAJOT-CEFNRUSXSA-N D-alpha-tocopherylacetate Chemical compound CC(=O)OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C ZAKOWWREFLAJOT-CEFNRUSXSA-N 0.000 claims description 6
- 235000019484 Rapeseed oil Nutrition 0.000 claims description 6
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 6
- 235000013871 bee wax Nutrition 0.000 claims description 6
- 239000012166 beeswax Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- ZAKOWWREFLAJOT-UHFFFAOYSA-N d-alpha-Tocopheryl acetate Natural products CC(=O)OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C ZAKOWWREFLAJOT-UHFFFAOYSA-N 0.000 claims description 6
- JJQZDUKDJDQPMQ-UHFFFAOYSA-N dimethoxy(dimethyl)silane Chemical compound CO[Si](C)(C)OC JJQZDUKDJDQPMQ-UHFFFAOYSA-N 0.000 claims description 6
- FOYKKGHVWRFIBD-UHFFFAOYSA-N gamma-tocopherol acetate Natural products CC(=O)OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1 FOYKKGHVWRFIBD-UHFFFAOYSA-N 0.000 claims description 6
- 239000008173 hydrogenated soybean oil Substances 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 6
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 6
- 238000007865 diluting Methods 0.000 claims description 5
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 claims description 4
- UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Chemical compound [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical group OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 abstract description 16
- 239000003963 antioxidant agent Substances 0.000 abstract description 9
- 230000003078 antioxidant effect Effects 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 5
- 229920001558 organosilicon polymer Polymers 0.000 abstract description 5
- 239000002537 cosmetic Substances 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 71
- 239000011247 coating layer Substances 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 13
- 229910052710 silicon Inorganic materials 0.000 description 10
- 239000010703 silicon Substances 0.000 description 10
- 235000006708 antioxidants Nutrition 0.000 description 8
- 230000004048 modification Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
- 229920001296 polysiloxane Polymers 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 238000001035 drying Methods 0.000 description 7
- 238000005406 washing Methods 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 6
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- 239000002244 precipitate Substances 0.000 description 4
- 239000007766 cera flava Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229920005573 silicon-containing polymer Polymers 0.000 description 3
- 241000872198 Serjania polyphylla Species 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010668 complexation reaction Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000124033 Salix Species 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M acrylate group Chemical group C(C=C)(=O)[O-] NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- RFXSFVVPCLGHAU-UHFFFAOYSA-N benzene;phenol Chemical group C1=CC=CC=C1.OC1=CC=CC=C1.OC1=CC=CC=C1 RFXSFVVPCLGHAU-UHFFFAOYSA-N 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 235000019219 chocolate Nutrition 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 125000002256 xylenyl group Chemical group C1(C(C=CC=C1)C)(C)* 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
- A45D40/20—Pencil-like cosmetics; Simple holders for handling stick-shaped cosmetics or shaving soap while in use
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/0216—Solid or semisolid forms
- A61K8/0233—Distinct layers, e.g. core/shell sticks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
- A61Q1/02—Preparations containing skin colorants, e.g. pigments
- A61Q1/10—Preparations containing skin colorants, e.g. pigments for eyes, e.g. eyeliner, mascara
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/42—Colour properties
- A61K2800/43—Pigments; Dyes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/52—Stabilizers
- A61K2800/522—Antioxidants; Radical scavengers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/60—Particulates further characterized by their structure or composition
- A61K2800/61—Surface treated
- A61K2800/62—Coated
- A61K2800/623—Coating mediated by organosilicone compounds
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Birds (AREA)
- Epidemiology (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Cosmetics (AREA)
Abstract
The invention relates to the technical field of cosmetics and discloses a double-color sandwich eyebrow pencil lead and a preparation method thereof. The eyebrow pencil lead comprises two first color layers in the axial direction and a second color layer arranged between the two first color layers; the first color layer and the second color layer have different colors; and a color transition layer is arranged between the two first color layers and the second color layer. The double-color sandwich eyebrow pencil lead can form a hierarchy with gradual color change when being made up, is convenient and simple to operate, and does not need to select different colors for multiple drawing. In addition, the surface of the toner is coated with the organosilicon polymer grafted and modified by the antioxidant and the catechol group, so that the adhesiveness of the toner on the skin can be improved, and the durability and the friction resistance of make-up are improved.
Description
Technical Field
The invention relates to the technical field of cosmetics, in particular to a double-color sandwich eyebrow pencil lead and a preparation method thereof.
Background
The wind for eyebrow painting is a long-standing source, and can be traced to the war period, women use the charcoal of willow branches to paint the eyebrow. At present, eyebrow pencils play an indispensable role in makeup cosmetics because of the advantages of convenience and quickness, suitability for eyebrow drawing, short feathered eyebrows drawing, eyebrow tail drawing and the like.
The shade of the eyebrow color is an important parameter for determining whether the user is fashionable. The colors of the existing eyebrow pencil on the market are classified into three color systems of gray, black and brown, and various colors derived on the basis of the colors, such as gray black, stark gray, geoochre, brown, chocolate color and the like.
Even though eyebrow pencil has a lot of colors, consumers can draw a single color on the eyebrow pencil. In the prior art (such as patent CN107006997 a), though multiple colors can be integrated in one eyebrow pencil by increasing the number of pen cores, different colors can be selected according to the needs during makeup, in order to realize gradual change of the eyebrow color, the pen cores must be switched to carry out multiple drawing, the technical requirement is higher, secondary coloring is difficult to carry out on the drawn eyebrow color, the drawn lines are harder, and the layering sense of gradual change of the colors cannot be formed. Therefore, the color can be blended, a natural eyebrow pencil with a natural eyebrow color can be achieved, and the eyebrow pencil is a fashionable and beautiful pursuit for a cosmeceutical holder, and has strong market demands.
Disclosure of Invention
In order to solve the technical problems, the invention provides a double-color sandwich eyebrow pencil lead and a preparation method thereof. The eyebrow pencil lead can form a hierarchy effect of gradual change of colors when being made up, is convenient and simple to operate, and does not need to select different colors to draw for multiple times.
The specific technical scheme of the invention is as follows:
a double-color sandwich eyebrow pencil lead comprises two first color layers in the axial direction and a second color layer arranged between the two first color layers; the first color layer and the second color layer have different colors; and a color transition layer is arranged between the two first color layers and the second color layer.
According to the invention, two colors are integrated in the same pen core, and a sandwich structure is adopted, so that the eyebrow color edge and the middle can be different in color through simple drawing during make-up; in addition, in the preparation process of the eyebrow pencil lead, the two color layers can be fused at the junction by extrusion to form a color transition layer, so that the eyebrow color is naturally transited.
Preferably, the cross section of the two-color sandwich eyebrow pencil lead is round or polygonal.
Further, the cross section of the two-color sandwich eyebrow pencil lead is round with the diameter of 1.00-3.50mm, or triangular with the heights of 1.40-2.75mm and 2.00-3.60mm on the bottom side and the bottom side, or rectangular with the lengths and the widths of 1.5-2.0mm and 1.0-2.5 mm.
Further, the cross section of the two-color sandwich eyebrow pencil lead is a circle with the diameter of 1.50 mm.
Unlike available hacking knife shaped eyebrow pencil, the present invention has superfine circular pencil lead of 1.50mm, no need of pencil sharpener, clear line drawing, two kinds of line with natural color.
Preferably, the double-color sandwich eyebrow pencil lead comprises the following raw materials in parts by weight: 10-50 parts of toner, 10-30 parts of filling powder, 20-80 parts of forming agent and 0.05-0.15 part of auxiliary agent.
Further, the weight portion of the forming agent is 50-60 portions.
Under huge extrusion, the high-proportion oil wax can increase the compatibility among different color materials, is easier to be tightly embedded, and avoids the problems of broken core and large slag drop during coating.
Preferably, in the first color layer, the toner comprises iron oxide red, iron oxide yellow and iron oxide black with the mass ratio of 3.2-3.8:1:1.8-2.4; in the second color layer, the toner includes iron oxide red.
Preferably, the toner is a toner @ high adhesion coating layer particle; the high-adhesion coating layer is an organosilicon polymer grafted and modified by an antioxidant and catechol groups.
The invention coats the high-adhesiveness coating layer outside the toner, and the specific mechanism for improving the durability and friction resistance of make-up is as follows: the organosilicon polymer has better adhesiveness on the skin surface, and the adhesiveness of the coating layer can be further improved by grafting catechol groups, so that the durability and the friction resistance of make-up are improved; the purpose of the method is to reduce the decrease of adhesiveness caused by oxidation of catechol groups in the storage process, and simultaneously realize the purpose, when the toner is ferroferric oxide (iron black), the antioxidant also has the function of preventing the ferroferric oxide from being oxidized into brown ferric oxide.
Preferably, the preparation method of the toner@high adhesion coating layer particles comprises the following steps:
(1.1) Synthesis of a Silicone prepolymer: adding an organosilicon monomer into alcohol, wherein the organosilicon monomer comprises dimethyl dimethoxy silane, 3- (methacryloyloxy) propyl trimethoxy silane and tetraethoxy silane with the mass ratio of 2.3-3.3:3.5-5.5:1, adding hydrochloric acid to adjust the pH to 3-5, and carrying out reflux reaction for 2-3 hours at 80-90 ℃ to obtain organosilicon prepolymer dispersion;
in the step (1.1), an organosilicon prepolymer with silicon hydroxyl groups on side chains and end groups can be obtained by utilizing hydrolysis and dehydration condensation reaction of an organosilicon monomer; in this process, the 3- (methacryloxy) propyltrimethoxysilane monomer is capable of introducing acrylate groups in the side chains of the silicone prepolymer.
(1.2) coating toner: diluting the organosilicon prepolymer dispersion liquid with alcohol, adding toner and catechin, uniformly dispersing, stirring and reacting for 3-4h, and separating toner@organosilicon prepolymer particles;
in the step (1.2), hydroxyl groups on the surface of the toner react with silicon hydroxyl groups on side chains and end groups of the organosilicon prepolymer, so that the organosilicon prepolymer is covalently bonded to the surface of the toner to form a coating layer, and the bonding force between the coating layer and the toner can be improved in a covalent bonding mode, and the coating layer is prevented from being separated from the toner in the preparation and use processes of the eyebrow pencil lead; meanwhile, catechin is introduced in the step (1.2), and the hydroxy group in the catechin is utilized to react with the silicon hydroxy group in the organosilicon prepolymer, so that the catechin can be grafted into the inner part and the surface of the coating layer, and the color change of the toner caused by the contact of oxygen and the toner in the coating layer is effectively prevented.
(1.3) grafting catechol groups: dispersing toner @ organosilicon prepolymer particles into water, adding dopamine, mixing uniformly, adding sodium hydroxide solution dropwise under stirring to adjust the pH to 9-11, stirring and reacting at 70-80 ℃ for 5-6h after the dripping is completed, and separating the toner @ high-adhesiveness coating particles;
in the step (1.3), the amino group in the dopamine and the alkenyl group in the organosilicon prepolymer are subjected to addition reaction, so that catechol groups can be grafted on the surface of the coating layer, and the adhesion of the coating layer on the skin surface is improved. The invention does not graft dopamine onto the organosilicon prepolymer before coating, but adopts a mode of coating before grafting, because: if the grafting-coating mode is adopted, catechol groups are easy to be combined to the surface of the toner through complexation and other modes, the catechol groups on the surface of the coating layer are reduced, and the improvement effect on the adhesive force is limited.
Preferably, in the step (1.2), the mass-volume ratio of the catechin, the toner and the silicone prepolymer dispersion is 1g:1.5-2.5g:6-8mL.
Preferably, in the step (1.3), the mass-volume ratio of the dopamine and toner@organosilicon prepolymer particles to water is 1g:2-3g:10-20mL.
Preferably, in the steps (1.1) and (1.2), the volume ratio of water to ethanol in the alcohol is 1:1.5-2.0.
Preferably, in the step (1.1), the mass-volume ratio of the organic silicon monomer to the alcohol is 1g:3-6mL.
Preferably, in the step (1.1), the concentration of the hydrochloric acid is 5-6mol/L.
Preferably, in step (1.2), the silicone prepolymer dispersion is diluted by a factor of 4 to 8.
Preferably, in the step (1.3), the concentration of the sodium hydroxide solution is 0.5-1.0mol/L, and the dropwise addition is completed within 30-40 min.
Preferably, the filling powder comprises mica/perfluorooctyl triethoxysilane and boron nitride in a mass ratio of 1:1-1.5.
Preferably, the molding agent comprises hydrogenated soybean oil, hydrogenated rapeseed oil, zinc stearate, beeswax and synthetic wax in a mass ratio of 2.7-10:4-10:1:4.5-5.5:7-8.
Preferably, the auxiliary comprises tocopheryl acetate.
A method for preparing the double-color sandwich eyebrow pencil lead, which comprises the following steps:
(1) Heating and mixing the raw materials of the first color layer and the second color layer respectively and uniformly to obtain two ointment-like materials;
(2) Respectively grinding the two ointment-shaped material bodies to obtain two ground material bodies;
(3) In extrusion equipment, adding two ground materials into an extrusion pipe of a three-layer pipeline, and extruding to obtain a primary formed pen core;
(4) Baking the primary formed pencil lead, and then freezing to obtain the double-color sandwich eyebrow pencil lead.
Preferably, in step (1), the heating temperature is 80-120 ℃.
Preferably, in the step (3), the extrusion pressure is 0.6-2MPa.
Preferably, in the step (4), the baking temperature is 45-55 ℃ and the baking time is 10-14h.
Preferably, in the step (2), the number of times of grinding is 4 to 7.
Compared with the prior art, the invention has the following advantages:
(1) The sandwich structure with two different colors is adopted, and the transition layer is arranged between the different colors, so that the natural depth transition can be formed between the edge of the eyebrow color and the middle of the eyebrow color, the operation is convenient and simple, and the multiple drawing is not required to be performed by selecting different colors;
(2) By coating the surface of the toner with an organosilicon polymer modified by grafting an antioxidant and catechol groups, the adhesiveness of the toner on the skin can be improved, thereby improving the durability and the anti-friction performance of make-up.
Drawings
FIG. 1 is a photograph of a cross-section of an eyebrow pencil lead of example 1;
FIG. 2 is a photograph of a cross-section of the eyebrow pencil lead of example 2;
since fig. 1 and 2 are converted into the gray mode, the color difference between the first color layer and the second color layer is not significant; in a color photograph, there is a relatively noticeable color difference between the two color layers.
Detailed Description
The invention is further described below with reference to examples.
General examples
A double-color sandwich eyebrow pencil lead comprises two first color layers in the axial direction and a second color layer arranged between the two first color layers; the first color layer and the second color layer have different colors; and a color transition layer is arranged between the two first color layers and the second color layer.
The cross section of the double-color sandwich eyebrow pencil lead is round or polygonal, preferably round with the diameter of 1.00-3.50mm, or triangular with the heights of 1.40-2.75mm and 2.00-3.60mm on the bottom edge and the bottom edge respectively, or rectangular with the lengths and the widths of 1.5-2.0mm and 1.0-2.5mm respectively.
The double-color sandwich eyebrow pencil lead comprises the following raw materials in parts by weight: 10-50 parts of toner, 10-30 parts of filling powder, 20-80 parts of forming agent and 0.05-0.15 part of auxiliary agent. The filling powder comprises mica/perfluorooctyl triethoxysilane and boron nitride in a mass ratio of 1:1-1.5. The molding agent comprises hydrogenated soybean oil, hydrogenated rapeseed oil, zinc stearate, beeswax and synthetic wax in a mass ratio of 2.7-10:4-10:1:4.5-5.5:7-8. The auxiliary agent comprises tocopheryl acetate. In the first color layer, the toner comprises iron oxide red, iron oxide yellow and iron oxide black with the mass ratio of 3.2-3.8:1:1.8-2.4; in the second color layer, the toner includes iron oxide red.
A method for preparing the double-color sandwich eyebrow pencil lead, which comprises the following steps:
(1) Heating the raw materials of the first color layer and the second color layer to 80-120 ℃ respectively, and uniformly mixing to obtain two ointment-like materials;
(2) Respectively grinding the two ointment-shaped materials for 4-7 times to obtain two ground materials;
(3) Adding the two ground materials into an extrusion pipe of a three-layer pipeline in extrusion equipment, and extruding at the pressure of 0.6-2MPa to obtain an initial formed pen core;
(4) Baking the primary formed pencil lead at 45-55 ℃ for 10-14h, and then freezing to obtain the double-color sandwich eyebrow pencil lead.
Optionally, the toner is a toner @ high adhesion coating layer particle, and the preparation method comprises the following steps:
(1.1) Synthesis of a Silicone prepolymer: adding an organosilicon monomer into alcohol (the volume ratio of water to the alcohol is 1:1.5-2.0), wherein the organosilicon monomer comprises dimethyl dimethoxy silane, 3- (methacryloyloxy) propyl trimethoxy silane and tetraethoxy silane with the mass ratio of 2.3-3.3:3.5-5.5:1, the mass volume ratio of the organosilicon monomer to the alcohol is 1g:3-6mL, adding 5-6mol/L hydrochloric acid to adjust the pH value to 3-5, and carrying out reflux reaction for 2-3 hours at 80-90 ℃ to obtain an organosilicon prepolymer dispersion;
(1.2) coating toner: diluting the organosilicon prepolymer dispersion liquid with alcohol (the volume ratio of water to the alcohol is 1:1.5-2.0) for 4-8 times, adding toner and catechin, wherein the mass volume ratio of the catechin, the toner and the organosilicon prepolymer dispersion liquid is 1g:1.5-2.5g:6-8mL, uniformly dispersing, stirring for reacting for 3-4h, centrifugally separating, washing the precipitate with water and ethanol in sequence, and drying to obtain toner@organosilicon prepolymer particles;
(1.3) grafting catechol groups: dispersing toner@organic silicon prepolymer particles into water, adding dopamine, wherein the mass volume ratio of the dopamine to the toner@organic silicon prepolymer particles to the water is 1g:2-3g:10-20mL, after uniformly mixing, dropwise adding 0.5-1.0mol/L sodium hydroxide solution to adjust the pH to 9-11 under stirring, after dropwise adding for 30-40min, stirring and reacting for 5-6h at 70-80 ℃, centrifugally separating, washing and drying to obtain the toner@high-adhesion coating particles.
Example 1
A double-color sandwich eyebrow pencil lead comprises two first color layers in the axial direction and a second color layer arranged between the two first color layers; the first color layer and the second color layer have different colors; and a color transition layer is arranged between the two first color layers and the second color layer. The cross section of the two-color sandwich eyebrow pencil lead is round with the diameter of 1.50 mm. The raw materials of the first color layer and the second color layer are shown in tables 1 and 2, respectively. The cross section of the eyebrow pencil lead is shown in figure 1.
TABLE 1
1 Mica/perfluorooctyl triethoxysilane: i.e. mica modified with perfluorooctyl triethoxysilane, the manufacturer is Shanghai associated with chemical industry Co.
TABLE 2
| Raw materials | Parts by weight | Use of the same |
| Iron red (CI 77491/AS) | 30 | Toner powder |
| Mica/perfluorooctyl triethoxysilane | 5 | Filling powder |
| Boron nitride | 5 | Filling powder |
| Hydrogenated soybean oil | 5.4 | Molding agent |
| Hydrogenated rapeseed oil | 8 | Molding agent |
| Zinc stearate | 2 | Molding agent |
| Beeswax (Cera flava) | 10 | Molding agent |
| Japanese synthetic wax | 15 | Molding agent |
| Tocopheryl acetate | 0.1 | Auxiliary agent (antioxidant) |
A method for preparing the double-color sandwich eyebrow pencil lead, which comprises the following steps:
(1) Heating the raw materials of the first color layer and the second color layer to 80 ℃ respectively, and uniformly mixing to obtain two ointment-like material bodies;
(2) Respectively grinding the two ointment-shaped materials for 4 times to obtain two ground materials;
(3) In extrusion equipment, adding two ground materials into an extrusion pipe of a three-layer pipeline, selecting a circular extrusion head with the inner diameter of 1.5mm, and extruding at the pressure of 0.6MPa to obtain an initial forming pen core;
(4) And (3) placing the primary formed pencil lead into a container, baking the pencil lead in an oven at the temperature of 45 ℃ for 14 hours, and then placing the pencil lead into a freezing device for freezing to obtain the double-color sandwich eyebrow pencil lead.
Example 2
A double-color sandwich eyebrow pencil lead comprises two first color layers in the axial direction and a second color layer arranged between the two first color layers; the first color layer and the second color layer have different colors; and a color transition layer is arranged between the two first color layers and the second color layer. The cross section of the two-color sandwich eyebrow pencil lead is a triangle with the heights of 1.40mm and 2.00mm on the bottom edge and the bottom edge respectively. The raw materials of the first color layer and the second color layer are the same as in example 1. The cross section of the eyebrow pencil lead is shown in fig. 2.
A method for preparing the double-color sandwich eyebrow pencil lead, which comprises the following steps:
(1) Heating the raw materials of the first color layer and the second color layer to 120 ℃ respectively, and uniformly mixing to obtain two ointment-like material bodies;
(2) Respectively grinding the two ointment-shaped materials for 7 times to obtain two ground materials;
(3) In extrusion equipment, adding two ground materials into an extrusion pipe of a three-layer pipeline, selecting triangular extrusion heads with the heights of 1.40mm and 2.00mm on the bottom edge and the bottom edge, and extruding at the pressure of 2MPa to obtain a primary formed pen core;
(4) And (3) placing the primary formed pencil lead into a container, baking the pencil lead in an oven at the temperature of 55 ℃ for 10 hours, and then placing the pencil lead into a freezing device for freezing to obtain the double-color sandwich eyebrow pencil lead.
Example 3
A double-color sandwich eyebrow pencil lead comprises two first color layers in the axial direction and a second color layer arranged between the two first color layers; the first color layer and the second color layer have different colors; and a color transition layer is arranged between the two first color layers and the second color layer. The cross section of the two-color sandwich eyebrow pencil lead is a rectangle with the thickness of 1.5mm multiplied by 2.0 mm. The raw materials of the first color layer and the second color layer are shown in tables 3 and 4, respectively.
TABLE 3 Table 3
| Raw materials | Parts by weight | Use of the same |
| Iron red (CI 77491/AS) | 26.4 | Toner powder |
| Iron oxide yellow (CI 77492/AS) | 7.2 | Toner powder |
| Iron black (CI 77499/AS) | 16.4 | Toner powder |
| Mica/perfluorooctyl triethoxysilane | 12 | Filling powder |
| Boron nitride | 18 | Filling powder |
| Hydrogenated soybean oil | 15.5 | Molding agent |
| Hydrogenated rapeseed oil | 21 | Molding agent |
| Zinc stearate | 3 | Molding agent |
| Beeswax (Cera flava) | 16.5 | Molding agent |
| Japanese synthetic wax | 24 | Molding agent |
| Tocopheryl acetate | 0.1 | Auxiliary agent (antioxidant) |
TABLE 4 Table 4
| Raw materials | Parts by weight | Use of the same |
| Iron red (CI 77491/AS) | 10 | Toner powder |
| Mica/perfluorooctyl triethoxysilane | 5 | Filling powder |
| Boron nitride | 5 | Filling powder |
| Hydrogenated soybean oil | 3 | Molding agent |
| Hydrogenated rapeseed oil | 4.5 | Molding agent |
| Zinc stearate | 1 | Molding agent |
| Beeswax (Cera flava) | 4.5 | Molding agent |
| Japanese synthetic wax | 7 | Molding agent |
| Tocopheryl acetate | 0.1 | Auxiliary agent (antioxidant) |
A method for preparing the double-color sandwich eyebrow pencil lead, which comprises the following steps:
(1) Heating the raw materials of the first color layer and the second color layer to 100 ℃ respectively, and uniformly mixing to obtain two ointment-like material bodies;
(2) Respectively grinding the two ointment-shaped materials for 5 times to obtain two ground materials;
(3) In extrusion equipment, adding two ground materials into an extrusion pipe of a three-layer pipeline, selecting a rectangular extrusion head with the thickness of 1.5mm multiplied by 2.0mm, and extruding at the pressure of 1MPa to obtain an initial formed pen core;
(4) And (3) placing the primary formed pencil lead into a container, baking the pencil lead in an oven at 50 ℃ for 12 hours, and then placing the pencil lead into a freezing device for freezing to obtain the double-color sandwich eyebrow pencil lead.
Example 4
This example differs from example 1 only in that in this example, the same mass AS in example 1, namely iron oxide red (CI 77491/AS), iron oxide yellow (CI 77492/AS) and iron oxide black (CI 77499/AS), were each subjected to coating modification to obtain toner @ high adhesion coated particles, which were then used in a two-color filled eyebrow pencil lead, the coating modification comprising the steps of:
(1.1) Synthesis of a Silicone prepolymer: adding an organosilicon monomer into alcohol (the volume ratio of water to the alcohol is 1:1.5), wherein the organosilicon monomer comprises dimethyl dimethoxy silane, 3- (methacryloyloxy) propyl trimethoxy silane and tetraethoxy silane with the mass ratio of 2.3:5.5:1, the mass volume ratio of the organosilicon monomer to the alcohol is 1g:6mL, adding 5mol/L hydrochloric acid to adjust the pH to 5, and carrying out reflux reaction for 3 hours at 80 ℃ to obtain an organosilicon prepolymer dispersion;
(1.2) coating toner: diluting the organosilicon prepolymer dispersion liquid with alcohol (the volume ratio of water to the alcohol is 1:1.5) for 4 times, adding toner and catechin, wherein the mass volume ratio of the catechin, the toner and the organosilicon prepolymer dispersion liquid is 1g:1.5g:6mL, stirring and reacting for 3 hours at room temperature after uniform dispersion, centrifugally separating, washing the precipitate with water and ethanol in sequence, and drying to obtain toner@organosilicon prepolymer particles;
(1.3) grafting catechol groups: dispersing toner@organic silicon prepolymer particles into water, adding dopamine, wherein the mass volume ratio of the dopamine to the toner@organic silicon prepolymer particles to the water is 1g:2g:20mL, after uniformly mixing, dropwise adding 0.5mol/L sodium hydroxide solution under stirring to adjust the pH value to 9, after dropwise adding for 30min, stirring and reacting for 6h at 70 ℃, centrifuging, separating, washing with water, and drying to obtain the toner@high-adhesiveness coating particles.
Example 5
This example differs from example 1 only in that in this example, the same mass AS in example 1, namely, iron oxide red (CI 77491/AS), iron oxide yellow (CI 77492/AS) and iron oxide black (CI 77499/AS) were each subjected to coating modification to obtain toner @ high adhesion coated particles, which were then used in a two-color filled eyebrow pencil lead, the coating modification comprising the steps of:
(1.1) Synthesis of a Silicone prepolymer: adding an organosilicon monomer into alcohol (the volume ratio of water to the alcohol is 1:2.0), wherein the organosilicon monomer comprises dimethyl dimethoxy silane, 3- (methacryloyloxy) propyl trimethoxy silane and tetraethoxy silane with the mass ratio of 3.3:3.5:1, the mass volume ratio of the organosilicon monomer to the alcohol is 1g:3mL, adding 6mol/L hydrochloric acid to adjust the pH to 3, and carrying out reflux reaction for 2 hours at 90 ℃ to obtain an organosilicon prepolymer dispersion;
(1.2) coating toner: diluting the organosilicon prepolymer dispersion liquid with alcohol (the volume ratio of water to the alcohol is 1:2.0) for 8 times, adding toner and catechin, wherein the mass volume ratio of the catechin, the toner and the organosilicon prepolymer dispersion liquid is 1g:2.5g:8mL, stirring and reacting for 4 hours at room temperature after uniform dispersion, centrifugally separating, washing the precipitate with water and the alcohol in sequence, and drying to obtain toner@organosilicon prepolymer particles;
(1.3) grafting catechol groups: dispersing toner@organic silicon prepolymer particles into water, adding dopamine, wherein the mass volume ratio of the dopamine to the toner@organic silicon prepolymer particles to the water is 1g:3g:10mL, after uniformly mixing, dropwise adding 1.0mol/L sodium hydroxide solution under stirring to adjust the pH to 11, after dropwise adding for 40min, stirring and reacting for 5h at 80 ℃, centrifuging, separating, washing with water, and drying to obtain the toner@high-adhesiveness coating particles.
Comparative example 1
The difference between this comparative example and example 4 is only that in this comparative example, catechin was not added in step (1.2) when coating modification was performed on the toner, i.e., no antioxidant was grafted to the toner @ high adhesion coated particles.
Comparative example 2
The present comparative example differs from example 4 only in that in the present comparative example, step (1.3) was not performed when coating modification was performed on the toner, i.e., no collar xylenol group was grafted in the toner @ high-adhesion coated particle.
Comparative example 3
The present comparative example differs from example 4 only in that in the present comparative example, the coating modification includes the steps of:
(1.1) Synthesis of a Silicone prepolymer: adding an organosilicon monomer into alcohol (the volume ratio of water to the alcohol is 1:1.5), wherein the organosilicon monomer comprises dimethyl dimethoxy silane, 3- (methacryloyloxy) propyl trimethoxy silane and tetraethoxy silane with the mass ratio of 2.3:5.5:1, the mass volume ratio of the organosilicon monomer to the alcohol is 1g:6mL, adding 5mol/L hydrochloric acid to adjust the pH to 5, and carrying out reflux reaction for 3 hours at 80 ℃ to obtain an organosilicon prepolymer dispersion;
(1.2) grafting catechol groups: adding dopamine into the organosilicon prepolymer dispersion liquid, wherein the mass volume ratio of the dopamine to the organosilicon prepolymer dispersion liquid is 1 g/9 mL, after uniform mixing, dropwise adding 0.5mol/L sodium hydroxide solution to adjust the pH to 9 under stirring, after dropwise adding for 30min, stirring and reacting for 6h at 70 ℃, and then adding 5mol/L hydrochloric acid to adjust the pH to 5, thus obtaining modified organosilicon prepolymer dispersion liquid;
and (1.3) adding toner and catechin into the modified organosilicon prepolymer dispersion liquid, wherein the mass volume ratio of the catechin to the toner to the modified organosilicon prepolymer dispersion liquid is 1g:1.5g:24mL, stirring and reacting for 3 hours at room temperature after uniform dispersion, centrifugally separating, washing the precipitate with water and ethanol in sequence, and drying to obtain the toner@high-adhesion coating particles.
Test case
Eyebrow pencil leads of examples 1 to 5 and comparative examples 1 to 3 were manufactured into eyebrow pencil, and after one year of storage, skin test was performed as follows:
(1) Uniformly smearing a coating block with the same depth and the width and about 1cm and about 3cm on the arm of each volunteer by using an eyebrow pencil, rubbing with fingers for 3 times along the length direction, observing the rubbing condition, scoring the rubbing resistance of the eyebrow pencil according to the rubbing condition, wherein 9-10 points indicate no obvious rubbing phenomenon, 4-9 points (without 9 points) indicate obvious rubbing phenomenon, and 0-4 points (without 4 points) indicate almost complete rubbing; volunteers were 10 women aged 20-40 years and scores averaged;
(2) The eyebrow pencil is smeared on the eyebrows of volunteers, makeup removal is observed after 4 hours and 8 hours, the makeup applying duration of the eyebrow pencil is scored according to the makeup removal, no obvious lightening and rarefaction phenomenon is shown in 9-10 points, the lightening and rarefaction phenomenon is obvious in 4-9 points (excluding 9 points), and almost complete makeup removal is shown in 0-4 points (excluding 4 points); volunteers were 10 women aged 20-40 years and scores were averaged.
The test results are shown in Table 5.
TABLE 5
Analyzing the data of Table 5, the following conclusions can be drawn:
(1) The apparent improvement in make-up durability and abrasion resistance of examples 4 and 5, compared to example 1, demonstrates that the make-up durability and abrasion resistance of the eyebrow pencil lead can be improved after the toner is coated by the method of the present invention.
(2) The reduced make-up durability and abrasion resistance of comparative example 1 compared to example 4 suggests that the make-up durability and abrasion resistance of the eyebrow pencil lead can be improved by grafting catechin to the silicone polymer coating. The reason is that: by grafting an antioxidant onto the silicone polymer, the reduction in adhesion caused by oxidation of the benzene diphenol groups during storage of the adjacent eyebrow pencil can be slowed down, thereby improving the durability and anti-friction properties of the make-up.
(3) The decrease in make-up durability and abrasion resistance of comparative example 2 compared to example 4 suggests that the make-up durability and abrasion resistance of the eyebrow pencil lead can be improved by grafting dopamine on the surface of the silicone polymer coating. The reason is that: the organosilicon polymer has better adhesiveness on the skin surface, and the adhesiveness of the coating layer can be further improved by grafting catechol groups, so that the durability and the friction resistance of make-up are improved.
(4) Compared with example 4, the dressing durability and the rubbing resistance of comparative example 3 are reduced, and the method of coating and grafting firstly is adopted to improve the dressing durability and the rubbing resistance of the eyebrow pencil lead compared with the method of grafting dopamine on the organosilicon prepolymer and coating the toner. The reason is that: if the grafting-coating mode is adopted, catechol groups are easy to be combined to the surface of the toner through complexation and other modes, the catechol groups on the surface of the coating layer are reduced, and the improvement effect on the adhesive force is limited.
The raw materials and equipment used in the invention are common raw materials and equipment in the field unless specified otherwise; the methods used in the present invention are conventional in the art unless otherwise specified.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modification, variation and equivalent transformation of the above embodiment according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (8)
1. The double-color sandwich eyebrow pencil lead is characterized by comprising two first color layers in the axial direction and a second color layer arranged between the two first color layers; the first color layer and the second color layer have different colors; a color transition layer is arranged between the two first color layers and the second color layer; the double-color sandwich eyebrow pencil lead comprises toner, wherein the toner is toner@high-adhesion coating particles, and the preparation method of the toner@high-adhesion coating particles comprises the following steps of: 1.1 Adding an organosilicon monomer into alcohol, wherein the organosilicon monomer comprises dimethyl dimethoxy silane, 3-methacryloxypropyl trimethoxy silane and tetraethoxy silane with the mass ratio of 2.3-3.3:3.5-5.5:1, adding hydrochloric acid to adjust the pH to 3-5, and carrying out reflux reaction for 2-3 hours at 80-90 ℃ to obtain organosilicon prepolymer dispersion; 1.2 Diluting the organosilicon prepolymer dispersion liquid with alcohol, adding toner and catechin, uniformly dispersing, stirring and reacting for 3-4h, and separating toner@organosilicon prepolymer particles; 1.3 Dispersing toner @ organosilicon prepolymer particles into water, adding dopamine, mixing uniformly, adding sodium hydroxide solution dropwise under stirring to adjust the pH to 9-11, stirring and reacting at 70-80 ℃ for 5-6h after the dripping is completed, and separating the toner @ high-adhesiveness coating particles.
2. The two-color filled eyebrow pencil lead as in claim 1, wherein the two-color filled eyebrow pencil lead has a circular or polygonal cross section.
3. The two-color filled eyebrow pencil lead as claimed in claim 2, wherein the cross section of the two-color filled eyebrow pencil lead is a circle with a diameter of 1.00-3.50mm, or a triangle with a height of 1.40-2.75mm and 2.00-3.60mm on the base side and the base side, or a rectangle with a length and a width of 1.5-2.0mm and 1.0-2.5mm, respectively.
4. A two-color filled eyebrow pencil lead as in one of claims 1-3, comprising the following raw materials in parts by weight: 10-50 parts of toner, 10-30 parts of filling powder, 20-80 parts of forming agent and 0.05-0.15 part of auxiliary agent.
5. The two-color filled eyebrow pencil lead as in claim 4, wherein the toner in the first color layer comprises iron red, iron yellow and iron black in a mass ratio of 3.2-3.8:1:1.8-2.4; in the second color layer, the toner includes iron oxide red.
6. The two-color filled eyebrow pencil lead of claim 1, wherein:
in the step 1.2, the mass-volume ratio of the catechin, the toner and the organosilicon prepolymer dispersion liquid is 1g:1.5-2.5g:6-8mL; and/or
In the step 1.3, the mass volume ratio of the dopamine and toner@organosilicon prepolymer particles to water is 1g:2-3g:10-20mL.
7. The two-color filled eyebrow pencil lead of claim 4, wherein:
the filling powder comprises mica/perfluorooctyl triethoxysilane and boron nitride in a mass ratio of 1:1-1.5; and/or
The molding agent comprises hydrogenated soybean oil, hydrogenated rapeseed oil, zinc stearate, beeswax and synthetic wax in a mass ratio of 2.7-10:4-10:1:4.5-5.5:7-8; and/or
The auxiliary agent comprises tocopheryl acetate.
8. A method of making a two-color filled eyebrow pencil lead as claimed in any one of claims 1 to 7, comprising the steps of:
1. heating and mixing the raw materials of the first color layer and the second color layer respectively and uniformly to obtain two ointment-like materials;
2. respectively grinding the two ointment-shaped material bodies to obtain two ground material bodies;
3. in extrusion equipment, adding two ground materials into an extrusion pipe of a three-layer pipeline, and extruding to obtain a primary formed pen core;
4. baking the primary formed pencil lead, and then freezing to obtain the double-color sandwich eyebrow pencil lead.
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