CN108272648B - Cosmetic powder, oily color paste and preparation method thereof - Google Patents
Cosmetic powder, oily color paste and preparation method thereof Download PDFInfo
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- CN108272648B CN108272648B CN201810251554.7A CN201810251554A CN108272648B CN 108272648 B CN108272648 B CN 108272648B CN 201810251554 A CN201810251554 A CN 201810251554A CN 108272648 B CN108272648 B CN 108272648B
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- 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
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/58—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing atoms other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur or phosphorus
- A61K8/585—Organosilicon compounds
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- 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
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- 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
- A61K8/29—Titanium; Compounds thereof
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- 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
Abstract
The invention relates to cosmetic powder, oily color paste and a preparation method thereof. The cosmetic powder is subjected to surface treatment by adopting a treatment fluid, and the treatment fluid comprises a first modifier and a second modifier; wherein the first modifier is a silane coupling agent with active groups and has a general formula of R1(R2)NR3Si(R4)3‑a(OR5)aIn the formula, R1、R2Is hydrogen, aliphatic hydrocarbon or hydrocarbon radical containing hetero atoms, R3Is a branched or straight chain alkylene group of 1 to 10 carbon atoms, R4Is a C1-6 hydrocarbon group, R5Is a C1-4 alkyl group, a is an integer of 1-3; the second modifier is an unmodified silane coupling agent with the general formula R6SiX3In the formula, R6Is an aliphatic hydrocarbon having 1 to 20 carbon atoms, and X is a halogen, an alkoxy group having 1 to 5 carbon atoms, or an acyloxy group having 1 to 5 carbon atoms. The oily color paste comprises the following components in percentage by mass: cosmetic powder: 30% -90%, grease: 5% -65%, dispersant: 0.1 to 5 percent. The cosmetic powder after surface treatment has good dispersibility, and is used in oily color paste of cosmetics, and the oily color paste has simple components, high solid content and low viscosity.
Description
Technical Field
The invention relates to the technical field of cosmetic raw materials, in particular to cosmetic powder, oily color paste and a preparation method thereof.
Background
With the increasing living standard, the demand of people for cosmetics is also rapidly increased. In cosmetics, especially in color cosmetics, cosmetic powder is a raw material with a large amount. However, conventional cosmetic powders have a number of disadvantages in the use of cosmetic formulations. Such as: the cosmetic powder has large surface energy level, easy agglomeration among particles and the like, and the difficulty of dispersion of the cosmetic powder is increased. The uneven dispersion of the cosmetic powder can cause various problems such as unstable system, insufficient color development of the pigment, formation of color spots or color bands, and the like. Meanwhile, the cosmetic powder can generate floating dust in application, so that raw materials can be lost, the body health is seriously affected, and the environment is polluted.
Disclosure of Invention
In view of the above, there is a need to provide a cosmetic powder which is surface-treated to enhance lipophilicity and dispersibility in oil, and which can be applied to an oily color paste of a cosmetic to increase the solid content of the oily color paste and reduce the viscosity of the oily color paste, in view of the above problems.
The cosmetic powder is subjected to surface treatment by adopting a treatment fluid, and the treatment fluid comprises a first modifier and a second modifier;
wherein the first modifier is a silane coupling agent with an active group and has a general formula of R1(R2)NR3Si(R4)3-a(OR5)aIn the formula, R1、R2Is hydrogen, aliphatic hydrocarbon or hydrocarbon radical containing hetero atoms, R3Is a branched or straight chain alkylene group of 1 to 10 carbon atoms, R4Is a C1-6 hydrocarbon group, R5Is a C1-4 alkyl group, a is an integer of 1-3;
the second modifier is an unmodified silane coupling agent with the general formula of R6SiX3In the formula, R6Is an aliphatic hydrocarbon having 1 to 20 carbon atoms, and X is a halogen, an alkoxy group having 1 to 5 carbon atoms, or an acyloxy group having 1 to 5 carbon atoms.
When the second modifier in the treatment liquid is used for modifying the cosmetic powder, X groups in the second modifier are firstly hydrolyzed to form silanol, and then the silanol reacts with hydroxyl on the surface of powder particles to form hydrogen bonds and is condensed into-Si-O-M covalent bonds (M represents the surface of the particles), so that the modifier is firmly combined on the surface of the powder. Meanwhile, the silanol is mutually associated and aggregated to form a network structure, and the film formed by the structure is covered on the surface of the particle, so that the surface of the powder is organized, and the powder is endowed with better lipophilicity.
The specific reaction is as follows:
hydrolysis:
R6SiX3+3H2O→R6Si(OH)3+3HX，
condensation:
hydrogen bond formation:
similarly, when the first modifier is used for modifying the cosmetic powder in the treatment liquid, the modification principle is similar to that of the second modifier, and alkoxy is hydrolyzed to form silanol. And the active groups carried by the first modifier are slightly polar, have better affinity effect with the surface of the powder, and are beneficial to better combination of the first modifier and the second modifier with the powder, so that the perfectly coated powder is obtained.
The invention also provides oily color paste comprising the cosmetic powder, wherein the oily color paste comprises the following components in percentage by mass: cosmetic powder: 30% -90%, grease: 5% -65%, dispersant: 0.1 to 5 percent.
The cosmetic powder used in the oily color paste is subjected to surface treatment, so that the lipophilicity of the cosmetic powder is enhanced, and the cosmetic powder has excellent dispersibility in grease. Therefore, different cosmetic powder can be used in the oily color paste, the variety and the color are rich, the using amount of the cosmetic powder is increased, and the coloring and covering capability is enhanced and durable. Meanwhile, the oily color paste is simple in composition, does not contain components such as a thickening agent, a stabilizing agent and the like, greatly reduces the viscosity of the oily color paste, is beneficial to the optimization of a subsequent formula, and is convenient to use and low in cost.
The invention also provides a preparation method of the oily color paste, which comprises the following steps:
(1) mixing oil and a dispersant to obtain an oil phase, and adding the cosmetic powder into the oil phase to obtain slurry;
(2) and dispersing the slurry to obtain the oily color paste.
The preparation method of the oily color paste is simple and controllable, does not produce pollution, is easy to industrialize, and the prepared oily color paste has high solid content, low viscosity, convenient use, safety and no toxicity.
Drawings
FIG. 1 is a microscopic picture of dispersibility of titanium dioxide of example 1, wherein a is a microscopic picture of dispersibility in esters, and b is a microscopic picture of dispersibility in silicone oil;
FIG. 2 is a microscope photograph of the dispersibility of the titanium dioxide of comparative example 1, wherein a is a microscope photograph of the dispersibility in an ester, and b is a microscope photograph of the dispersibility in a silicone oil;
FIG. 3 is a microscope photograph of the dispersibility of the titanium dioxide of comparative example 2, wherein a is a microscope photograph of the dispersibility in an ester, and b is a microscope photograph of the dispersibility in a silicone oil;
FIG. 4 is a microscope photograph showing the dispersibility of the red 7 calcium lake of example 5, wherein a is a microscope photograph showing the dispersibility in esters, and b is a microscope photograph showing the dispersibility in silicone oil;
FIG. 5 is a microscope photograph showing the dispersibility of the red 7 calcium lake of comparative example 3, wherein a is a microscope photograph showing the dispersibility in esters, and b is a microscope photograph showing the dispersibility in silicone oil;
FIG. 6 is a microscope photograph showing the dispersibility of the red 7 calcium lake of comparative example 4, wherein a is a microscope photograph showing the dispersibility in esters, and b is a microscope photograph showing the dispersibility in silicone oil;
FIG. 7 is a microscopic picture of the dispersibility of the titanium oxide of example 15, wherein a is a microscopic picture of the dispersibility in an ester, and b is a microscopic picture of the dispersibility in a silicone oil;
FIG. 8 is a photomicrograph of the titanium dioxide mill base diluent of example 18;
FIG. 9 is a microscope photograph of a titanium dioxide mill base diluent of comparative example 5;
FIG. 10 is a microscope photograph of a titanium dioxide mill base diluent of comparative example 6;
FIG. 11 is a photomicrograph of a red 7 lake slurry diluent of example 22;
FIG. 12 is a microscope picture of a red 7 lake slurry diluent of comparative example 7;
FIG. 13 is a microscope picture of a dilution of red 7 lake paste of comparative example 8.
Detailed Description
The cosmetic powder, the oily color paste and the preparation method thereof provided by the invention are further explained below.
The invention provides a cosmetic powder, which is subjected to surface treatment by adopting a treatment fluid, wherein the treatment fluid comprises a first modifier and a second modifier.
Wherein the first modifier is a silane coupling agent with an active group and has a general formula of R1(R2)NR3Si(R4)3-a(OR5)aIn the formula, R1、R2Is hydrogen, aliphatic hydrocarbon or hydrocarbon radical containing hetero atoms, R3Is a branched or straight chain alkylene group of 1 to 10 carbon atoms, R4Is a C1-6 hydrocarbon group, R5Is a hydrocarbon group having 1 to 4 carbon atoms, and a is an integer of 1 to 3. The structural formulas are shown as the following formulas (I) to (III), wherein a in the structural formula (I) is 1, a in the structural formula (II) is 2, and a in the structural formula (III) is 3.
Considering that the steric effect of the larger alkane may have an influence on the surface treatment, the silane coupling agent having a reactive group is preferably at least one of aminopropyltrimethoxysilane or aminopropyltriethoxysilane.
The second modifier is an unmodified silane coupling agent with the general formula of R6SiX3The structural formula is shown as the following formula (IV):
in the formula R6Is an aliphatic hydrocarbon having 1 to 20 carbon atoms, and X is a halogen, an alkoxy group having 1 to 5 carbon atoms, or an acyloxy group having 1 to 5 carbon atoms. Also, considering that steric effects of larger alkanes may have some effect on surface treatment, R6Too short carbon chains in turn affect the lipophilicity of the powder, and therefore the unmodified silane coupling agent is preferably at least one of octyltrimethoxysilane or octyltriethoxysilane.
The dosage of the first modifier in the treatment fluid is less than or equal to that of the second modifier. Since the amino group in the first modifier is a polar group having a certain hydrophilicity, if an excessively high proportion of the first modifier is used, the lipophilicity is affected.
The dosage of the first modifier is 0.1-20 wt% of the cosmetic powder, and more preferably 1-5 wt%.
The dosage of the second modifier is 0.1 wt.% to 20 wt.%, and more preferably 1 wt.% to 10 wt.% of the cosmetic powder.
The cosmetic powder is inorganic powder and/or organic powder. It is understood that the cosmetic powder of the present invention may contain only one or more of the inorganic powders, may contain only one or more of the organic powders, or may be a mixture of one or more of the inorganic powders and one or more of the organic powders.
The material of the inorganic powder is not limited, and the inorganic powder generally used as cosmetic powder can be any, including but not limited to at least one of titanium dioxide, talcum powder, mica powder, pearl powder, kaolin powder, iron oxide powder, ultramarine powder and chromium green powder.
The organic powder is a lake pigment, and the lake pigment comprises at least one of red 6 barium lake, red 7 calcium lake, yellow 5 aluminum lake and blue 1 aluminum lake.
When the second modifier in the treatment liquid is used for modifying the cosmetic powder, X groups in the second modifier are firstly hydrolyzed to form silanol, and then the silanol reacts with hydroxyl on the surface of powder particles to form hydrogen bonds and is condensed into-Si-O-M covalent bonds (M represents the surface of the particles), so that the modifier is firmly combined on the surface of the powder. Meanwhile, the silanol is mutually associated and aggregated to form a network structure, and the film formed by the structure is covered on the surface of the particle, so that the surface of the powder is organized, and the powder is endowed with better lipophilicity.
The specific reaction is as follows:
hydrolysis:
R6SiX3+3H2O→R6Si(OH)3+3HX，
condensation:
hydrogen bond formation:
similarly, when the first modifier is used for modifying the cosmetic powder in the treatment liquid, the modification principle is similar to that of the second modifier, and alkoxy is hydrolyzed to form silanol. And the active groups carried by the first modifier are slightly polar, have better affinity effect with the surface of the powder, and are beneficial to better combination of the first modifier and the second modifier with the powder, so that the perfectly coated powder is obtained.
The surface treatment process can be a conventional dry process or a conventional wet process, and the acidic environment is favorable for the hydrolysis reaction of the silane coupling agent. In the surface treatment process, the silane coupling agent with the active group and the unmodified silane coupling agent can be mixed and then mixed with the cosmetic powder, or the cosmetic powder is firstly mixed with one of the silane coupling agent with the active group or the unmodified silane coupling agent and then mixed with the other.
The invention also provides oily color paste comprising the cosmetic powder, wherein the oily color paste comprises the following components in percentage by mass: cosmetic powder: 30% -90%, grease: 5% -65%, dispersant: 0.1 to 5 percent.
The grease is at least one of silicone oil or ester. In view of fluidity of the silicone oil, preferred is a silicone oil having better fluidity, including but not limited to at least one of polydimethylsiloxane, cyclopentadimethicone, octylmethicone, cyclohexasiloxane, phenyl trimethicone, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane. Also, in view of the fluidity of the esters, esters having better fluidity are preferred, including but not limited to at least one of caprylic/capric triglyceride, C12-15 alcohol benzoate, isononyl isononanoate, dioctyl carbonate, propylheptyl octanoate, ethylhexyl cetearyl alcohol, malic diisostearate, isopropyl myristate, ethylhexyl palmitate.
The dispersing agent is at least one of a water-in-silicone oil emulsifier or a water-in-oil emulsifier.
Further, when the oil is silicone oil, the dispersing agent is preferably a water-in-silicone oil emulsifier, including but not limited to at least one of cetyl PEG/PPG-10/1 polydimethylsiloxane, PEG-10 polydimethylsiloxane, PEG-9 polydimethylsiloxane ethyl polydimethylsiloxane, lauryl PEG-9 polydimethylsiloxane ethyl polydimethylsiloxane, and lauryl PEG/PPG-18/18 polydimethylsiloxane. When the grease is an ester, the dispersant is preferably a water-in-oil emulsifier, and includes but is not limited to at least one of sorbitan oleate, PEG-30 dipolyhydroxystearate, polyglycerol-3 diisostearate, polyhydroxystearic acid, sorbitan isostearate, sorbitan sesquioleate and polyglycerol-2 dipolyhydroxystearate.
The cosmetic powder used in the oily color paste is subjected to surface treatment, so that the lipophilicity of the cosmetic powder is enhanced, and the cosmetic powder has excellent dispersibility in grease. Therefore, different cosmetic powder can be used in the oily color paste, the variety and the color are rich, the using amount of the cosmetic powder is increased, and the coloring and covering capability is enhanced and durable. Meanwhile, the oily color paste is simple in composition, does not contain components such as a thickening agent, a stabilizing agent and the like, greatly reduces the viscosity of the oily color paste, is beneficial to the optimization of a subsequent formula, and is convenient to use and low in cost.
The invention also provides a preparation method of the oily color paste, which comprises the following steps:
(1) mixing oil and a dispersant to obtain an oil phase, and adding the cosmetic powder into the oil phase to obtain slurry;
(2) and dispersing the slurry to obtain the oily color paste.
Wherein the step (1) is carried out at a temperature of 75-85 ℃.
And (3) grinding and dispersing the slurry in the step (2), wherein the adopted grinding and dispersing equipment is at least one of a sand mill, a colloid mill and a three-roller machine.
The preparation method of the oily color paste is simple and controllable, does not produce pollution, is easy to industrialize, and the prepared oily color paste has high solid content, low viscosity, convenient use, safety and no toxicity.
Hereinafter, the cosmetic powder, the oily color paste and the preparation method thereof will be further described by the following specific examples.
Example 1:
5g of aminopropyltriethoxysilane and 30g of octyltriethoxysilane were dissolved in 100g of ethanol to prepare a treatment liquid. Then spraying the treatment solution into 1kg of titanium dioxide under high-speed stirring to fully mix the treatment solution and the titanium dioxide, discharging, drying for 3h at 110 ℃, and carrying out jet milling to obtain the titanium dioxide after surface treatment.
Example 2:
the titanium dioxide in example 1 was replaced by iron oxide yellow powder.
Example 3:
the titanium dioxide in example 1 was replaced with red iron oxide powder.
Example 4:
the titanium dioxide in example 1 was replaced by iron oxide black powder.
Example 5:
the titanium dioxide in example 1 was replaced with red 7 calcium lake.
Example 6:
the titanium dioxide in example 1 was replaced with red 6 barium lake.
Example 7:
the titanium dioxide in example 1 was replaced with blue 1 aluminum lake.
Example 8:
the titanium dioxide in example 1 was replaced with ultramarine dust.
Example 9:
the titanium dioxide of example 1 was replaced by chromium green powder.
Example 10:
the amount of aminopropyltriethoxysilane used in example 1 was reduced to 1 g.
Example 11:
the amount of aminopropyltriethoxysilane and octyltriethoxysilane used in example 1 were both reduced to 1 g.
Example 12:
the amount of aminopropyltriethoxysilane used in example 1 was increased to 50g and the amount of octyltriethoxysilane used was increased to 100 g.
Example 13:
the amount of aminopropyltriethoxysilane and octyltriethoxysilane used in example 1 were increased to 200g each.
Example 14:
the amount of aminopropyltriethoxysilane used in example 1 was increased to 25g and the amount of octyltriethoxysilane used was increased to 50 g.
Example 15:
the amount of aminopropyltriethoxysilane used in example 1 was increased to 50 g.
Example 16:
the aminopropyltriethoxysilane of example 1 was replaced with aminopropyltrimethoxysilane
Example 17:
octyltriethoxysilane from example 1 was replaced with octyltrimethoxysilane
Comparative example 1:
aminopropyltriethoxysilane was removed from example 1 and only 30g of octyltriethoxysilane were used, the remainder being held constant to give treated titanium dioxide.
Comparative example 2:
the octyltriethoxysilane in example 1 was removed and only 5g of aminopropyltriethoxysilane was used, the remainder being kept unchanged to give treated titanium dioxide.
Comparative example 3:
the propyltriethoxysilane from example 5 was removed and only 30g of octyltriethoxysilane were used, the remainder being unchanged, yielding a treated red 7 calcium lake.
Comparative example 4:
octyl triethoxysilane was removed from example 5 and only 5g aminopropyl triethoxysilane was used, the remainder being held constant to provide a treated red 7 calcium lake.
Evaluation experiment:
titanium dioxide and red 7 calcium lake were selected as representative inorganic powders and organic powders, respectively, the powders of examples 1, 5 and 15 and the powders of comparative examples 1 to 4 were prepared into 5% dispersions using esters (caprylic/capric triglyceride) and silicone oil (cyclopentadimethylsiloxane), respectively, and the dispersibility of the powders was evaluated by ultrasonography for 10min and microscopic photographs (400 times) as shown in fig. 1 to 7.
As is clear from fig. 1 to 7, the cosmetic powder surface-treated according to the present invention has significantly improved dispersibility in esters and silicone oils. As is clear from fig. 1, 4 and 7, when the amount of the first modifier is less than the amount of the second modifier, the cosmetic powder after surface treatment has excellent dispersibility in esters and silicone oil.
Example 18:
the oily color paste comprises the following components:
| composition of matter | Mass percent (%) |
| Titanium dioxide obtained in example 1 | 90 |
| Caprylic propyl heptyl ester | 5 |
| PEG-30 Dipolyhydroxystearate | 5 |
The preparation process comprises the following steps:
the corresponding amount of the caprylic propyl heptyl ester and the PEG-30 dipolyhydroxystearate are mixed in the same container, heated and stirred evenly at 85 ℃ to obtain an oil phase. The corresponding amount of titanium dioxide from example 1 was then added to the oil phase and stirred to form a homogeneous slurry.
And dispersing and grinding the obtained slurry for 3 times by using a three-roller machine to obtain the oily color paste.
The oily color paste obtained by the method has excellent fluidity and convenient use.
Example 19:
the titanium dioxide used in example 18 from example 1 was replaced with the titanium dioxide from example 16, the rest remaining unchanged.
Example 20:
the oily color paste comprises the following components:
| composition of matter | Mass percent (%) |
| Iron oxide yellow powder obtained in example 2 | 75 |
| Isononyl isononanoate | 24 |
| PEG-30 Dipolyhydroxystearate | 1 |
The preparation process comprises the following steps:
corresponding amount of isononyl isononanoate and PEG-30 dipolyhydroxystearate are mixed in the same container, heated and stirred evenly at 75 ℃ to obtain oil phase. The corresponding amount of yellow iron oxide powder from example 2 was then added to the oil phase and stirred to form a homogeneous slurry.
And dispersing and grinding the obtained slurry for 2 times by using a three-roller machine to obtain the oily color paste.
The oily color paste obtained by the method has excellent fluidity and convenient use.
Example 21:
the oily color paste comprises the following components:
the preparation process comprises the following steps:
mixing corresponding amount of cyclopentadimethylsiloxane and cetyl PEG/PPG-10/1 polydimethylsiloxane in the same container, heating at 75 deg.C, and stirring to obtain oil phase. The corresponding amount of iron oxide red powder from example 3 was then added to the oil phase and stirred to form a homogeneous slurry.
And dispersing and grinding the obtained slurry for 30min by using a sand mill to obtain the oily color paste.
The oily color paste obtained by the method has excellent fluidity and convenient use.
Example 22:
the oily color paste comprises the following components:
| composition of matter | Mass percent (%) |
| Red 7 calcium lake obtained in example 5 | 65 |
| Isononyl isononanoate | 34 |
| PEG-30 Dipolyhydroxystearate | 1 |
The preparation process comprises the following steps:
corresponding amount of isononyl isononanoate and PEG-30 dipolyhydroxystearate are mixed in the same container, heated and stirred evenly at 80 ℃ to obtain oil phase. The corresponding amount of the red 7 calcium lake from example 5 was then added to the oil phase and stirred to form a homogeneous slurry.
And dispersing and grinding the obtained slurry for 30min by using a sand mill to obtain the oily color paste.
The oily color paste obtained by the method has excellent fluidity and convenient use.
Example 23:
the oily color paste comprises the following components:
| composition of matter | Mass percent (%) |
| Red 6 barium lake obtained in example 6 | 30 |
| Diisostearic acid malate ester | 65 |
| PEG-30 Dipolyhydroxystearate | 5 |
The preparation process comprises the following steps:
mixing the corresponding amount of diisostearic acid malate and PEG-30 dipolyhydroxystearate in the same container, heating and stirring at 75 ℃ to obtain an oil phase. The corresponding amount of the red 6 barium lake obtained in example 6 was then added to the oil phase and stirred to form a homogeneous slurry.
And dispersing and grinding the obtained slurry for 30min by using a sand mill to obtain the oily color paste.
The oily color paste obtained by the method has excellent fluidity and convenient use.
Example 24:
the oily color paste comprises the following components:
| composition of matter | Mass percent (%) |
| Blue 1 aluminum lake obtained in example 7 | 70 |
| Myristic acid isopropyl ester | 29 |
| Polyhydroxystearic acid | 1 |
The preparation process comprises the following steps:
mixing corresponding amount of isopropyl myristate and polyhydroxystearic acid in the same container, heating at 75 deg.C, and stirring to obtain oil phase. The corresponding amount of the blue 1 aluminum lake of example 7 was then added to the oil phase and stirred to form a homogeneous slurry.
And grinding the obtained slurry for 3 times by using a colloid mill to obtain the oily color paste.
The oily color paste obtained by the method has excellent fluidity and convenient use.
Example 25:
the oily color paste comprises the following components:
the preparation process comprises the following steps:
mixing the polydimethylsiloxane and lauryl PEG/PPG-18/18 polydimethylsiloxane in the same container, and heating and stirring at 75 deg.C to obtain oil phase. The corresponding amount of ultramarine flour obtained in example 8 was then added to the oil phase and stirred to form a homogeneous slurry.
And dispersing and grinding the obtained slurry for 30min by using a sand mill to obtain the oily color paste.
The oily color paste obtained by the method has excellent fluidity and convenient use.
Example 26:
the oily color paste comprises the following components:
| composition of matter | Mass percent (%) |
| Titanium dioxide obtained in example 1 | 75 |
| Phenyl trimethicones | 11 |
| Caprylic/capric triglyceride | 12 |
| PEG-10 polydimethylsiloxane | 1 |
| Polyglyceryl-3 diisostearate | 1 |
The preparation process comprises the following steps:
mixing corresponding amounts of phenyl trimethicone, caprylic/capric triglyceride, PEG-10 polydimethylsiloxane and polyglycerol-3 diisostearate in the same container, heating at 85 deg.C, and stirring to obtain oil phase. The corresponding amount of titanium dioxide from example 1 was then added to the oil phase and stirred to form a homogeneous slurry.
And dispersing and grinding the obtained slurry for 30min by using a sand mill to obtain the oily color paste.
The oily color paste obtained by the method has excellent fluidity and convenient use.
Example 27:
the oily color paste comprises the following components:
| composition of matter | Mass percent (%) |
| Titanium dioxide obtained in example 1 | 40 |
| Red 7 calcium lake obtained in example 5 | 30 |
| Carbonic acid dioctyl ester | 27 |
| Sorbitan sesquioleate | 3 |
The preparation process comprises the following steps:
mixing the corresponding amount of dioctyl carbonate and sorbitan sesquioleate in the same container, heating and stirring uniformly at 78 ℃ to obtain an oil phase. The corresponding amounts of titanium dioxide from example 1 and red 7 calcium lake from example 5 were then added to the oil phase and stirred to form a homogeneous slurry.
And dispersing and grinding the obtained slurry for 2 times by using a three-roller machine to obtain the oily color paste.
The oily color paste obtained by the method has excellent fluidity and convenient use.
Comparative example 5:
the titanium dioxide used in example 18 from example 1 was replaced with the titanium dioxide from comparative example 1, the rest remaining unchanged.
Comparative example 6:
the titanium dioxide used in example 18 from example 1 was replaced with the titanium dioxide from comparative example 2, the rest remaining unchanged.
Comparative example 7:
the red 7 calcium lake of example 5 used in example 22 was replaced with the red 7 calcium lake of comparative example 3, the remainder remaining unchanged.
Comparative example 8:
the red 7 calcium lake of example 5 used in example 22 was replaced with the red 7 calcium lake of comparative example 4, the remainder remaining unchanged.
Evaluation experiment:
(1) the viscosities of the color pastes were measured with a viscometer, respectively, and the measurement results are shown in Table 1.
TABLE 1
As can be seen from Table 1, the oily color paste prepared by using the cosmetic powder after surface treatment according to the present invention has a greatly reduced viscosity at a high solid content, which is beneficial to the optimization of the subsequent formula, and is convenient to use and low in cost.
(2) Respectively selecting titanium dioxide color paste and red 7 calcium color paste as representatives of inorganic color paste and organic color paste, respectively diluting the color paste of examples 18 and 22 and the color paste of proportion 5-8 to 5% by using a dispersion medium of the color paste, fully vibrating, and evaluating the dispersibility of the powder by using a microscopic photograph (400 times), wherein the microscopic photograph is shown in figures 8-13.
As can be seen from FIGS. 8 to 13, the oily color paste of the present invention has more uniform dispersion of the toner.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. The cosmetic powder is characterized in that the cosmetic powder is subjected to surface treatment by adopting a treatment fluid, the treatment fluid comprises a first modifier and a second modifier, and the dosage of the first modifier in the treatment fluid is less than or equal to that of the second modifier;
wherein the first modifier is a silane coupling agent with an active group and has a general formula of R1(R2)NR3Si(R4)3-a(OR5)aIn the formula, R1、R2Is hydrogen, aliphatic hydrocarbon or hydrocarbon radical containing hetero atoms, R3Is a branched or straight chain alkylene group of 1 to 10 carbon atoms, R4Is a C1-6 hydrocarbon group, R5Is a C1-4 alkyl group, a is an integer of 1-3;
the second modifier is an unmodified silane coupling agent with the general formula of R6SiX3In the formula, R6Is an aliphatic hydrocarbon having 1 to 20 carbon atoms, and X is a halogen, an alkoxy group having 1 to 5 carbon atoms, or an acyloxy group having 1 to 5 carbon atoms.
2. The cosmetic powder according to claim 1, wherein the first modifier is used in an amount of 0.1 wt.% to 20 wt.% of the cosmetic powder.
3. The cosmetic powder according to claim 1, wherein the second modifier is present in an amount of from 0.1 wt.% to 20 wt.% of the cosmetic powder.
4. The cosmetic powder according to claim 1, wherein the cosmetic powder is an inorganic powder and/or an organic powder.
5. The cosmetic powder according to claim 4, wherein the organic powder is a lake pigment.
6. The oily color paste containing the cosmetic powder according to any one of claims 1 to 5, which is characterized by comprising the following components in percentage by mass: cosmetic powder: 30% -90%, grease: 5% -65%, dispersant: 0.1 to 5 percent.
7. The oily color paste according to claim 6, wherein the oil is at least one of silicone oil or ester.
8. The oily color paste according to claim 6, wherein the dispersant is at least one of a water-in-silicone oil emulsifier or a water-in-oil emulsifier.
9. A method for preparing the oily color paste according to any one of claims 6 to 8, which is characterized by comprising the following steps:
(1) mixing oil and a dispersant to obtain an oil phase, and adding the cosmetic powder into the oil phase to obtain slurry;
(2) and dispersing the slurry to obtain the oily color paste.
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| CN115105430B (en) * | 2022-05-23 | 2024-03-08 | 上海蔻沣生物科技有限公司 | Powder surface composite treating agent, surface modified powder and application thereof |
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Denomination of invention: Cosmetic powder, oily color paste and preparation method thereof Effective date of registration: 20220801 Granted publication date: 20200605 Pledgee: Industrial Bank Co., Ltd. Shanghai Jing'an Sub-branch Pledgor: SHANGHAI CO-FUN BIOTECH Co.,Ltd. Registration number: Y2022310000155 |