CN114788808A - Agile rainbow eyeliner and preparation method thereof - Google Patents

Abstract

The application relates to a flexible rainbow eyeliner liquid and a preparation method thereof, belonging to the field of cosmetics. The method comprises the following steps: 4.5-5.5% of glycerin … … 4.5, 0.36-0.44% of adsorbent … … 0.36, 0.12-0.16% of thickening agent … … 0.12, 0.036-0.044% of solvent … … 0.036, 20-25% of silica … … 20, … … 3.73.73-4.59% of coloring agent … …, 6.6-8.1% of film forming agent … … 6.6, 0.054-0.066% of skin conditioner … … 0.054, and the balance of water; the skin conditioning agent comprises the following components: one or more of collagen extract, Cordyceps extract, and Margarita extract. The eyeliner has good waterproofness and mildness, can present the special colorful effect of chameleon after painting, is not easy to cause the problems of dizzy makeup or mottle of eyeliner and the like, and has more lasting makeup effect.

Description

Agile rainbow eyeliner liquid and preparation method thereof

Technical Field

The invention relates to the field of cosmetics, in particular to a flexible rainbow eyeliner and a preparation method thereof.

Background

The eyeliner is a common cosmetic, and the eyeliner on the market at present is generally black and brown, and along with the diversified color requirements of people for matching the eye shadow, the single color can not meet the pursuit of people for aesthetic feeling, so that a colorful eyeliner, also called as chameleon eyeliner, is provided on the market, and can present different color changes at different angles after being painted on the skin, and is rich in colorful aesthetic feeling.

However, since the "chameleon" eyeliner is added with a colorant having an interference effect and silica with a high content as a colorant base material, and the powder has a problem of poor stability, which causes difficulty in controlling the production quality of eyeliner, at present, the chameleon eyeliner on the market has a significant disadvantage in terms of cosmetic retention compared with the common eyeliner, and the inferior cosmetic retention easily causes the eyeliner to be tinged, which affects the eyeliner surface, and thus needs to be further improved.

Disclosure of Invention

In order to overcome the defects, the application provides the agile rainbow eyeliner and the preparation method thereof, and the eyeliner not only can be painted to show a colorful and color-changing makeup effect, but also has good makeup-maintaining degree and mildness.

The application provides a smart rainbow eyeliner and a preparation method thereof, which adopts the following technical scheme:

in a first aspect, the present application provides a flexible rainbow eyeliner, which adopts the following technical scheme:

a agile rainbow eyeliner comprises the following raw material components in percentage by weight:

4.5 to 5.5 percent of glycerin … … 4.5,

0.36 to 0.44 percent of adsorbent … … 0.36,

0.12 to 0.16 percent of thickening agent … … 0.12,

0.036 to 0.044 percent of solvent … … 0.036,

… … 20-25% of silica,

colorant … … 3.73.73-4.59%,

film forming agent … … 6.6.6-8.1%,

… … 0.054-0.066% of skin conditioner,

the rest is water;

the skin conditioning agent comprises the following components: one or more of collagen extract, Cordyceps extract, and Margarita extract.

The eyeliner prepared by compounding the components has good water resistance, lasting makeup effect and difficult carvings, and the components such as glycerin, an adsorbent, a thickening agent, a solvent, a film-forming agent and the like are ingeniously compounded according to a specific using amount, so that the dispersibility of silica and a coloring agent in the eyeliner in a system is better, the coloring agent is difficult to agglomerate or color sink, the quality stability of the eyeliner is improved, and the eyeliner presents good chameleon visual effect after being painted.

Preferably, the skin conditioner comprises the following raw material components in percentage by weight:

collagen extract … … 0.018.018-0.022%,

… … 0.018-0.018 wt% of Cordyceps sinensis extract,

0.018-0.022% of pearl extract … … 0.018.

The collagen extract, the cordyceps sinensis extract and the pearl extract are compounded in the eyeliner according to a specific proportion, so that the eyeliner is better in temperature, and the combination of the collagen extract, the cordyceps sinensis extract and the pearl extract can improve the connectivity of the eyeliner after the eyeliner forms a film, so that silica in the eyeliner is not easy to disperse and shift around the eyeliner after adsorbing grease of the skin, the makeup effect of the eyeliner is more durable, the eyeliner can be more thoroughly removed, coloring powder is not easy to remain on the skin, and the use experience of the chameleon eyeliner is better.

Preferably, the thickening agent is polyacrylate cross-linked polymer-6, and the film forming agent is an acrylic acid (ester) copolymer.

By adopting the polyacrylate cross-linked polymer-6 as a thickening agent, the state stability of the eyeliner liquid can be improved, the liquid outlet smoothness of the eyeliner liquid is facilitated, in addition, the acrylic acid (ester) copolymer is used as a film forming agent, the quick drying effect of the eyeliner liquid can be better, the waterproofness of the eyeliner liquid is improved, and the combination of the polyacrylate cross-linked polymer-6 and the acrylic acid (ester) copolymer can be helpful for the eyeliner liquid to improve the brightness of the eyeliner liquid, so that the color change effect of the eyeliner liquid is more brilliant and natural.

Preferably, the solvent is tert-butanol.

By adopting the tert-butyl alcohol as a solvent, the polyacrylate cross-linked polymer-6 and the acrylic acid (ester) copolymer can be promoted to be matched with each other, and the effect of further controlling the migration problem of the colorant and silica on the skin is achieved, so that the problem that the eyeliner at the wrinkle part of eyes is not easy to be mottled and separated is solved, the makeup effect durability of the eyeliner is improved, and the makeup removal is facilitated to be more thorough.

Preferably, the adsorbent comprises the following raw material components in percentage by weight:

0.18 to 0.22 percent of magnesium aluminum silicate … … 0.18,

0.18 to 0.22 percent of magnesium lithium silicate … … 0.18.

The eyeliner is stable in storage state and dry without volatilizing moisture by adopting aluminum magnesium silicate and magnesium lithium silicate as adsorbents, and can be added into the eyeliner in a specific ratio to ensure that the eyeliner has good skin feel and anti-dizzy and dyeing effects.

Preferably, the feed also comprises the following raw material components in percentage by weight:

… … 0.009.009-0.011 percent of caprylyl hydroximic acid,

0.009-0.011% of p-hydroxyacetophenone … … 0.009.

By adding capryl hydroximic acid and p-hydroxyacetophenone in a specific ratio, the eye liner liquid has better storage stability and good mildness, is not easy to cause irritation to skin around eyes, and can improve the color change effect of the eye liner liquid.

Preferably, the feed also comprises the following raw material components in percentage by weight:

0.625 to 0.775 percent of humectant … … 0.625; the humectant is one or a combination of 1, 2-hexanediol, 1, 3-propanediol and butanediol.

By adding a proper amount of humectant, the liquid outlet smoothness and the storage durability of the eyeliner are improved, the eyeliner is not easy to dry after long-term storage, and the use quality of the eyeliner is improved.

Preferably, the humectant comprises the following raw material components in percentage by weight:

0.5 to 0.62 percent of 1, 2-hexanediol … … 0.5,

0.08 to 0.1 percent of 1, 3-propylene glycol … … 0.08,

butanediol … … 0.045-0.055%.

By adding the components according to a specific ratio, the eyeliner liquid painting has better comfort on skin, and is matched with other components to ensure that the eyeliner has bright and natural color, thereby leading the eyeliner liquid to have better chameleon effect.

Preferably, the colorant comprises the following raw material components in percentage by weight:

CI77491 colorant … … 3.7.7-4.1%,

CI77891 colorant … … 0.24-0.28%.

The CI77491 colorant and the CI77891 colorant are compounded with silica according to a specific ratio, the silica is used as a substrate of the colorant, and the CI77491 colorant and the CI77891 colorant are coated on the substrate, spectral shifts are formed by transmitted and reflected light beams, and therefore the chameleon special effect is displayed under different angles through light interference.

In a second aspect, the application provides a chameleon preparation method, which adopts the following technical scheme:

a preparation method of agile rainbow eyeliner comprises the following steps:

step 1) cleaning, disinfecting and preheating production tools;

step 2) weighing the glycerol, the thickening agent, the solvent and the adsorbent in the raw materials according to the proportion, adding the raw materials into a water phase pot, and stirring until the raw materials are uniformly dispersed;

step 3) weighing water in the raw materials according to the proportion, adding the water into a water phase pot, stirring until the water is uniformly dispersed, and controlling the temperature to be 80-85 ℃;

step 4), pumping the material body in the water phase pot into an emulsifying pot, stirring, dispersing and homogenizing;

step 5) after uniformly stirring, vacuumizing and defoaming the emulsifying pot, and cooling to 40-45 ℃;

step 6) weighing silica and a colorant in the raw materials according to the proportion, adding the silica and the colorant into an emulsifying pot, stirring and dispersing uniformly, and cooling to 25-30 ℃;

and 7) weighing the rest raw materials according to the proportion, adding the raw materials into an emulsifying pot, stirring and dispersing the raw materials uniformly, and discharging the materials after inspection and color matching qualification.

By adopting the technical scheme, the components are sequentially added, the specific temperature is controlled, the dispersion uniformity of the raw materials can be improved, the emulsified stock solution is subjected to evacuation and deaeration treatment, the fineness of the eyeliner solution is improved, the cooling treatment is performed before the addition of the raw materials such as the humectant and the skin conditioner, the influence of high temperature on the raw materials can be reduced, and the quality stability of the eyeliner solution is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the eyeliner prepared by adopting the components such as the glycerin, the adsorbent, the thickening agent, the solvent, the film-forming agent and the like according to a specific proportion has good water resistance, the makeup effect is lasting and difficult to make up, the eyeliner presents a good chameleon effect after being painted, and the mildness of the eyeliner is improved by adding the skin conditioner during compounding.

2. The collagen extract, the cordyceps sinensis extract and the pearl extract are compounded in the eyeliner according to a specific ratio, and the collagen extract, the cordyceps sinensis extract and the pearl extract are matched to improve the connectivity of the eyeliner after film forming, so that the makeup effect of the eyeliner is more durable, the makeup removal can be more complete, the coloring powder is not easy to remain on the skin, and the mildness is better.

3. By using the polyacrylate cross-linked polymer-6 as a thickening agent, using the acrylic acid (ester) copolymer as a film forming agent and adding tert-butyl alcohol as a solvent, the eyeliner liquid can be better in quick drying effect and waterproof effect, and is beneficial to improving the brightness of the eyeliner liquid, the eyeliner liquid at the wrinkle part of eyes is not easy to separate, the makeup effect durability of the eyeliner liquid is improved, and the makeup removal is more complete.

Drawings

Fig. 1 is a chameleon effect display diagram of the eyeliner painting on the hand in example 1 of the present application.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples.

Examples 1 to 3:

a flexible rainbow eyeliner is prepared by the following steps:

step 1) cleaning, disinfecting and preheating production tools, wherein the temperature is set to 90 ℃;

step 2) weighing glycerol, a thickening agent, a solvent and an adsorbent in the raw materials according to a ratio, adding the raw materials into a water phase pot, uniformly stirring until no particles exist, and controlling the temperature to be 80-85 ℃;

step 3) weighing water in the raw materials according to the proportion, adding the water into a water phase pot, stirring until the water is uniformly dispersed, and controlling the temperature to be 80-85 ℃;

step 4), pumping the material body in the water phase pot into an emulsifying pot, stirring at the rotating speed of 1000rpm, dispersing and homogenizing for 3 min;

step 5) after uniformly stirring, vacuumizing and defoaming the emulsifying pot, and cooling to 40-45 ℃;

step 6) weighing silica and a colorant in the raw materials according to the proportion, adding the silica and the colorant into an emulsifying pot, stirring and dispersing the mixture uniformly for 3min to ensure that the mixture is free of particles, and then cooling the mixture to 25-30 ℃;

and 7) weighing the rest raw materials according to the proportion, adding the raw materials into an emulsifying pot, stirring and dispersing for 10min, and discharging after inspection and qualified color matching.

The eyeliner paintings prepared in example 1 exhibited chameleon visual effects as shown in fig. 1.

Table 1 shows the formulation of examples 1-3 in terms of weight content of the raw materials:

TABLE 1 raw materials prescription table (weight percentage content%)

Example 4:

a prodigious rainbow eye liner, which differs from example 1 in that example 4 replaces the thickener with CARBOMER (CARBOMER).

Example 5:

an agile rainbow eye liner liquid is different from the liquid in the embodiment 1 in that the film forming agent is replaced by POLYURETHANE-10 (POLYURETHANE-10) in the embodiment 5.

Example 6:

an agile rainbow eyeliner, which is different from example 1 in that example 6 replaces thickener with CARBOMER (CARBOMER) and film former with POLYURETHANE-10 (POLYURETHANE-10).

Example 7:

an agile rainbow eye liner liquid is different from the liquid in example 1 in that the skin conditioning agents in example 7 are all collagen extracts and the weight content thereof is 0.06%.

Example 8:

a agile rainbow eye liner liquid is different from that in example 1 in that all the skin conditioners in example 8 are cordyceps sinensis extracts, and the weight content of the cordyceps sinensis extracts is 0.06%.

Example 9:

an agile rainbow eye liner liquid is different from the liquid in example 1 in that the skin conditioner in example 9 is pearl extract in total, and the content of the pearl extract is 0.06% by weight.

Example 10:

an agile rainbow eye liner liquid, which is different from example 1 in that p-hydroxyacetophenone is not added in example 10.

Example 11:

a flexible rainbow-colored eyeliner is different from example 1 in that octanoyl hydroximic acid is not added in example 11.

Example 12:

an agile rainbow eyeliner is different from example 1 in that example 12 does not add p-hydroxyacetophenone and octanoyl hydroxamic acid.

Example 13:

an agile rainbow eye liner liquid is different from the liquid in the embodiment 1 in that the humectant in the embodiment 13 is 1, 3-propanediol, and the content of the humectant is 1% by weight.

Example 14

An agile rainbow-eye liner liquid, which is different from example 1 in that the humectant is not added in example 14.

Comparative example 1:

an eyeliner is different from example 1 in that comparative example 1 does not use a skin conditioner.

Comparative example 2:

an eyeliner, which is different from example 1 in that comparative example 2 does not add t-butanol.

Comparative example 3:

an eyeliner which differs from example 6 in that comparative example 3 does not add t-butanol.

Comparative example 4:

an eyeliner different from example 1 in that comparative example 4 contains 10% by weight of silica, 1% by weight of polyacrylate crosslinked polymer-6, and 10% by weight of an acrylic acid (ester) copolymer.

Comparative example 5

An eyeliner different from example 1 in that the polyacrylate crosslinked polymer-6 of comparative example 5 was contained in an amount of 0.05% by weight and the acrylic acid (ester) copolymer was contained in an amount of 5% by weight.

Performance test

The following performance tests were performed on the eyeliner solutions prepared in the above examples and comparative examples, respectively:

performance test 1: eye liner fluid film forming speed.

The method comprises the steps of respectively painting eyeliner samples on the inner sides of the arms of testees, rubbing the painted eyeliner parts with fingers at 1-10s per second, 15s and 20s after painting, and recording when the eyeliner samples are formed into films, wherein the rubbing does not cause halation. The results are shown in Table 2.

Performance test 2: the waterproof performance of the eyeliner.

Respectively painting eyeliner samples on the inner sides of the arms of the testee to form test line segments with the size of 3cm multiplied by 0.2cm, wherein the painting times of each eyeliner sample are once, the distance between two adjacent eyeliner test line segments is at least 3cm, covering the positions of the test line segments with paper towels soaked by water, spraying water to the wet paper towels to keep moist in the process, observing the dyeing shading condition on the wet paper towels and describing and recording, lifting the wet paper towels and rubbing the test line segments with fingers after 5min, and recording the rubbing times when the eyeliner begins to peel. The results are shown in Table 2.

Performance test 3: eyeliner residue removing property.

Respectively painting eyeliner samples on the inner sides of the arms of the testees to form test areas with the size of 3CM multiplied by 3CM, waiting for 15min after the eyeliner samples are painted, using a makeup removing product of the same type to be painted in the test areas for emulsification and dissolution for 10s, then using warm water to wash and dry, finishing makeup removal, using a Meinenda color difference meter CM-2500c to detect the color difference before and after the makeup removal of the arms, wherein the detection results are shown in a table 3, and the delta L value represents the skin brightness difference, and the larger the measured value is, the more thorough the makeup removal is.

Note: the eyeliner prepared in examples 1-14 and comparative examples 1-4 was filled into the same eyeliner pen packaging material to obtain corresponding eyeliner samples, and before the test, the eyeliner samples were painted 10 times to make the liquid stable, and then the painting test was performed. Each group of eyeliner samples of each performance test item was tested 10 times in duplicate, and the average was calculated as the test result, which is detailed in table 2.

TABLE 2 film-Forming, Water-proofing, Makeup-removing residue Performance test results

Performance test 4: the eyeliner has painting effect.

The eye liner liquid samples are painted on the arms of the testees, the color development conditions of the eye liner liquid tests are compared, and comparative observation is carried out from different angles, wherein the eye liner liquid of the examples 1-3, the examples 10-13 and the comparative example 2 has high brightness, bright color, metallic texture and best chameleon visual effect, and the eye liner liquid prepared in the example 1 is different from the common eye liner liquid with single color in the market in figure 1, and can present colorful chameleon visual effect on the contour of the fluctuated skin due to interference effect after being painted on the hands. In addition, the eyeliner chameleon effects of the embodiments 4-9, 14, 1 and 3 are not good enough, and the eyeliner of the comparative examples 5-6 has the least visual effect because the color changing effect is not obvious under different angles.

Performance test 5: eyeliner is mild in nature.

Respectively taking 0.05mL of an eye liner liquid sample, injecting the eye liner liquid sample into a small chamber of a spot tester, selecting 10 social volunteers, the age of 20-40 years, dividing a tested area with the diameter of 8mm on the arm of the tested person, coating the eye liner liquid sample on the tested area, attaching the spot tester added with the tested substance to the inner side of the arm of the tested person by using a low-sensitivity adhesive tape, lightly pressing the tested substance by using a palm to uniformly attach the tested substance to the skin, keeping the period for 48h, then removing the spot tester, removing makeup, wiping the makeup, observing skin reaction, recording the reaction degree according to the standard of a table 3, recording the skin reaction degree of the eye liner liquid sample, and recording corresponding occurrence times, wherein the detection result is detailed in a table 4.

TABLE 3 skin response assessment criteria

Skin reactions	Extent of reaction
		Is not related to healthy skinDifferential, negative reaction	－
Slight redness, suspicious reaction	±
		Erythema, edema or papule, weak positive reaction	+
Erythema, edema, pimple and herpes appear, the reaction can exceed the tested area, and strong positive reaction is caused	++

TABLE 4 eye liner liquid temperature and sex detection results

Eyeliner sample	Degree of reaction/number of occurrences
		Example 1	－(10)
Example 7	－(9)、±(1)
		Example 8	－(9)、±(1)
Example 9	－(9)、±(1)
		Example 10	－(8)、±(2)
Example 11	－(10)
		Example 12	－(8)、±(2)
Example 13	－(10)
		Example 14	－(9)、±(1)
Comparative example 1	－(3)、±(7)

According to the performance detection results, the embodiment 1-3 has good performance in both film forming speed and mildness, and can give consideration to both waterproof performance and makeup removal residue rate, compared with the common black eyeliner on the market, the liquid eye liner has good anti-halation and low residue quality, has good chameleon special vision, has colorful color changing effect under different angles, and is very popular with makeup lovers.

In addition, as can be seen from the comparative analysis of the performance tests of the examples 1, 7 to 8 and the comparative example 1, the addition of the skin conditioning agent of the collagen extract, the cordyceps sinensis extract or the pearl extract to the eyeliner can lower the sensitivity of the eyeliner, reduce the content of silica and the irritation to the skin caused by the addition of the coloring agent, and when the collagen extract, the cordyceps sinensis extract or the pearl extract are added simultaneously, the connectivity of the components of the eyeliner can be improved, the eyeliner is not easy to flake off after being rubbed with wet water, the halation caused by the migration of the color block of the eyeliner can be reduced, the powder residue of the coloring agent and the like after makeup removal can be reduced, and the quality of the eyeliner can be improved.

From the comparative analysis of the performance tests of the embodiment 1, the embodiment 4-6 and the comparative example 2-3, it is known that the water resistance and the film forming speed of the eyeliner can be improved by using the polyacrylate cross-linked polymer-6 as a thickening agent and using the acrylic acid (ester) copolymer as a film forming agent, the addition of the tert-butyl alcohol is helpful for promoting the matching effect of the polyacrylate cross-linked polymer-6 and the acrylic acid (ester) copolymer, so that the eyeliner is not easy to generate the problems of makeup clouding and makeup removing residues, and compared with the comparative example 4-5, the polyacrylate cross-linked polymer-6 and the acrylic acid (ester) copolymer are matched in a specific proportion, so that the eyeliner can not only present a satisfactory chameleon effect, but also can reduce the problems of poor brightening effect and weak water resistance caused by high silica content.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims (10)

1. A flexible rainbow eyeliner is characterized by comprising the following raw material components in percentage by weight:

4.5 to 5.5 percent of glycerin … … 4.5,

0.36 to 0.44 percent of adsorbent … … 0.36,

0.12 to 0.16 percent of thickening agent … … 0.12,

solvent … … 0.036-0.044%,

20 to 25 percent of silica … … 20,

colorant … … 3.73.73-4.59%,

film forming agent … … 6.6.6-8.1%,

skin conditioner … … 0.054-0.066%,

the rest is water;

the skin conditioner comprises the following components: one or more of collagen extract, Cordyceps extract, and Margarita extract.

2. A smart rainbow eyeliner according to claim 1, wherein the skin conditioner comprises the following raw material components by weight percentage:

collagen extract … … 0.018-0.022%,

… … 0.018-0.018 wt% of Cordyceps sinensis extract,

0.018-0.022% of pearl extract … … 0.018.

3. An agile rainbow eye liner liquid according to any one of claims 1-2, wherein the thickener is polyacrylate cross-linked polymer-6 and the film former is an acrylic acid (ester) copolymer.

4. A flexible rainbow eye liner according to claim 3, wherein the solvent is t-butanol.

5. An agile rainbow eye liner liquid according to any one of claims 1-2, wherein the adsorbent comprises the following raw material components in weight percentage:

0.18 to 0.22 percent of magnesium aluminum silicate … … 0.18,

0.18 to 0.22 percent of magnesium lithium silicate … … 0.18.

6. A smart rainbow eyeliner according to any one of claims 1-2, further comprising the following raw material components by weight percentage:

… … 0.009.009-0.011 percent of caprylyl hydroximic acid,

0.009-0.011 percent of p-hydroxyacetophenone … … 0.009.

7. A flexible rainbow eyeliner according to any one of claims 1-2, further comprising the following raw material components by weight percent:

0.625-0.775% of humectant … … 0.625;

the humectant is one or a combination of more of 1, 2-hexanediol, 1, 3-propanediol and butanediol.

8. A smart rainbow eyeliner according to claim 7, wherein the humectant comprises the following raw material components by weight percentage:

0.5-0.62% of 1, 2-hexanediol … … 0.5;

0.08-0.1% of 1, 3-propylene glycol … … 0.08;

butanediol … … 0.045-0.055%.

9. A smart eyeliner according to any one of claims 1-2, wherein the colorant comprises the following raw material components by weight percentage:

CI77491 colorant … … 3.7.7-4.1%;

CI77891 colorant … … 0.24-0.28%.

10. A method for preparing an agile rainbow eyeliner, which is used for preparing the chameleon eyeliner of any one of claims 1-9, the method comprising the following steps:

step 1) cleaning, disinfecting and preheating production tools;

step 2) weighing the glycerol, the thickening agent, the solvent and the adsorbent in the raw materials according to the proportion, adding the raw materials into a water phase pot, and stirring until the raw materials are uniformly dispersed;

step 3) weighing water in the raw materials according to the proportion, adding the water into a water phase pot, stirring until the water is uniformly dispersed, and controlling the temperature to be 80-85 ℃;

step 4), pumping the material body in the water phase pot into an emulsifying pot, stirring, dispersing and homogenizing;

step 5) after uniformly stirring, vacuumizing and defoaming the emulsifying pot, and cooling to 40-45 ℃;

step 6) weighing silica and a colorant in the raw materials according to the proportion, adding the silica and the colorant into an emulsifying pot, stirring and dispersing uniformly, and cooling to 25-30 ℃;

and 7) weighing the rest raw materials according to the proportion, adding the raw materials into an emulsifying pot, stirring and dispersing the raw materials uniformly, and discharging the materials after inspection and color matching qualification.

Images