CN116930410A - Detection method for improving dynamic wet hair comb property of washing and caring cosmetics and application thereof - Google Patents
Detection method for improving dynamic wet hair comb property of washing and caring cosmetics and application thereof Download PDFInfo
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- 239000002537 cosmetic Substances 0.000 title claims abstract description 41
- 238000005406 washing Methods 0.000 title claims abstract description 36
- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 57
- 238000009960 carding Methods 0.000 claims abstract description 52
- 238000000034 method Methods 0.000 claims abstract description 32
- 230000003068 static effect Effects 0.000 claims description 50
- 238000005507 spraying Methods 0.000 claims description 30
- 230000000694 effects Effects 0.000 claims description 22
- 230000003766 combability Effects 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 3
- 238000000338 in vitro Methods 0.000 claims description 3
- 238000010998 test method Methods 0.000 abstract description 2
- 239000007921 spray Substances 0.000 description 21
- 239000002453 shampoo Substances 0.000 description 13
- 208000001840 Dandruff Diseases 0.000 description 12
- 238000009499 grossing Methods 0.000 description 8
- 240000007817 Olea europaea Species 0.000 description 6
- 240000003377 Shepherdia canadensis Species 0.000 description 6
- 235000018324 Shepherdia canadensis Nutrition 0.000 description 6
- 230000003020 moisturizing effect Effects 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- 238000005187 foaming Methods 0.000 description 3
- 238000009472 formulation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000012353 t test Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000001521 two-tailed test Methods 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The invention belongs to the technical field of performance detection, and particularly relates to a detection method for improving dynamic wet hair comb property of a washing and care cosmetic and application thereof. The invention utilizes the advantages and characteristics of the dynamic carding instrument to test the dynamic change process of the wet hair comb property, thereby researching the influence of the washing and caring cosmetics on the wet hair comb property in the dynamic process, creating the beginning of the dynamic process detection of the wet hair comb property and solving the single traditional wet hair comb property test. The method is more scientific, easy to operate and reproducible, announces a new dynamic comb property concept, breaks short plates of the wet hair modeling method in the current wet hair comb property and perfects the test method of the wet hair comb property, and provides a reference standard for enterprises and formulators to screen higher-quality washing and protecting products.
Description
Technical Field
The invention belongs to the technical field of performance detection, and particularly relates to a detection method for improving dynamic wet hair comb property of a washing and care cosmetic and application thereof.
Background
Hair manageability refers to the passing of a hair comb from root to tip to comb hair, which is a capability of the hair to be compliant and less prone to entanglement, and is generally measured by the resistance or work that the hair comb encounters when combing hair. The wet hair combing property characterizes the effect of the washing and caring cosmetics and the effects of softness, easy combing and entanglement resistance under the wet hair state.
Currently, in the industry, combing force or combing work before and after using products or comparing with a control group is mainly measured by devices such as tensioners Diastron Miniature Tensile Tester (DIA-STRON Limited England), instron (34 SC-1), a combing instrument (XJ 810 or MTT 175), a fiber a.one hair multifunctional test system, a CT3 texture analyzer and the like.
The wet hair combing property has two main technical differences, namely a wet hair modeling method and a wet hair combing property testing stage. For wet hair modeling methods, there are generally two methods of detection and modeling, one is to rinse directly under a faucet for 1-2 s, and then transfer the hair to test equipment for measurement; the other is to spray the wet hair with the clean water in a spray can, and the weight of the wet hair bundle is increased by 60% when the wet hair bundle is not wet after the hair bundle is smoothed out. Both molding methods are separated from the test equipment, and have the problems of difficult operation and reproduction of molding, no clear wet hair degree and difficult reproduction of results. This also illustrates that it is only the combing properties of hair in a certain wet state that are currently commonly measured by the industry. In the case of a hair care product, however, the surfactant in the formulation, after sufficient foaming, is highly likely to undergo a different change in combing with the passage of the flushing time, i.e. the change in combing properties of the hair after the hair care product has been applied to the hair is a dynamic process, whereas a single wet hair condition can only see the effect of the sample under test on the combing properties of the hair in this condition, resulting in one-sided performance of the formulation. There is no technical data published to mention a method for detecting the process of improving the dynamic change of hair combing property of a washing and caring cosmetic.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a detection method for improving dynamic wet hair comb property of a washing and caring cosmetic, which is more scientific, easy to operate, reproducible and capable of advertising a new dynamic comb property concept. On the other hand, the invention breaks the short board of the wet hair molding method in the wet hair comb property at present and perfects the test method of the wet hair comb property, and provides a reference standard for enterprises and skilled technicians to screen higher quality washing and caring products.
The invention solves the problems by the following technical proposal:
a detection method for improving dynamic wet hair comb property of a washing and caring cosmetic comprises the following steps:
1) Respectively placing at least 5 groups of clean hair pieces in a dynamic carding instrument, spraying back and forth, simultaneously carrying out multiple wet combing tests, and calculating average dynamic wet combing work before the hair pieces are used;
2) Uniformly smearing the washing and caring cosmetics to be tested on the hair piece, spraying back and forth, performing multiple wet comb tests, and calculating average dynamic wet comb management work of the hair piece after sample application;
3) After the test is finished, calculating the average change rate and the significance difference (P value) of the dynamic wet hair combing work before and after the sample application of the hair piece, and judging the effect of the to-be-tested washing and caring cosmetic on improving the dynamic wet hair combing property.
Wherein, the dynamic wet hair combability test simulates the perceived hair comb ease when combing hair while showering during actual shampooing.
According to another aspect of the present invention, the method for detecting the improved dynamic wet hair combability in combination with the above-mentioned cleansing cosmetic, and simultaneously detecting the static wet hair combability on a dynamic comb instrument:
the step 1) further comprises wet combing test after back and forth spraying, and calculating average static wet combing work before sample application of the hair piece;
step 2) also comprises a wet comb test carried out after the back and forth spraying is finished, and calculating average static wet comb work after the sample is used for the hair piece;
and 3) calculating the average change rate and the significance difference of the static wet hair combing work before and after the sample application of the hair piece, and judging the effect of the to-be-tested washing and caring cosmetic on improving the static wet hair combing property.
Wherein, static wet hair combing property simulates the easy combing property of the hair after the hair is wetted in the actual hair washing process and the excessive moisture is removed by means of hands, towels, combing and the like. Preferably, the wet combing test is performed on the hair pieces after removing the excessive moisture by combing.
Specifically, the detection method for improving wet hair comb property of the washing and caring cosmetic comprises the following steps:
1) Respectively placing at least 5 groups of clean hair pieces in a dynamic carding instrument, spraying, performing wet carding test, and calculating average static wet carding work before the hair pieces are used as samples;
2) Carrying out multiple wet comb tests while spraying back and forth, and calculating average dynamic wet comb management work before sample application of the hair piece;
3) Uniformly smearing the washing and caring cosmetics to be tested on the hair piece, spraying back and forth, performing multiple wet comb tests, and calculating average dynamic wet comb management work of the hair piece after sample application;
4) After spraying, carrying out wet combing test, and calculating average static wet combing work after sample application of the hair piece;
5) After the test is finished, calculating the average change rate and the significance difference of static wet hair combing work and dynamic wet hair combing work before and after the sample application of the hair piece, and judging the effect of the to-be-tested washing and caring cosmetic on improving the static and dynamic wet hair combing property.
Specifically, when the dynamic wet hair combing work change rate is less than 0 and the p value is less than 0.05, the cosmetic to be tested is considered to have the effect of remarkably improving the dynamic wet hair combing property of the hair bundle; when the change rate of static wet hair combing work is less than 0 and the p value is less than 0.05, the to-be-detected washing and caring cosmetic is considered to have the effect of remarkably improving the static wet hair combing property of the hair bundle; when the change rate of static wet hair combing work and dynamic wet hair combing work is smaller than 0 and the p value is smaller than 0.05, the to-be-detected washing and caring cosmetic is considered to have the effect of remarkably improving the wet hair combing property of the hair bundle.
Specifically, the invention selects statistical analysis software to respectively calculate descriptive statistics of comb property before and after sample application, such as mean value, standard deviation and the like, and carries out normal distribution test on each group of data. And adopting a front-back comparison, adopting a double-sample t test for comparing the average number of paired data when the data accords with normal or approximate normal distribution, and adopting a related sample rank sum test when the data does not accord with normal or approximate normal distribution. The above statistical analysis was a two-tailed test with a significance level of α=0.05. The calculation formula of the change rate K of the test index before and after sample application is shown as the following formula (1):
K=(F after using the sample /F Before using sample -1). Times.100% of (1)
Wherein K is the rate of change, F Before using sample For average value of static wet hair combing work or dynamic wet hair combing work before sample application, F After using the sample The average value of static wet hair combing work or dynamic wet hair combing work after sample application.
Furthermore, the invention can set program control items for the dynamic carding instrument according to the detection content to complete the detection, realize automatic wet hair modeling, foaming, constant temperature spraying and quick carding, and measure dynamic wet hair carding work and static wet hair carding work, thereby researching the advantages and disadvantages of the hair washing and caring product formula and the influence process on the hair carding performance. Preferably, the program editing may be set as: program 1: comb/spray (round trip), 3 times, ON; program 2: comb, 5 times, ON; program 3: comb 2 times, ON; program 4: comb/spray (round trip), 15 times, OFF; program 5: combing for 10 times, and performing ON; program 6: comb/spray (round trip), 15 times, ON; program 7: comb, 5 times, ON; program 8: comb, 2 times, ON. The application of the cosmetic product to be tested can be carried out after the end of the procedure 4.
Furthermore, the hair pieces are all in-vitro hair pieces of a human body, the hair pieces are cleaned by using a sodium dodecyl sulfate solution and clear water, and the hair pieces are placed in a constant temperature and humidity chamber with the temperature of 22.0+/-1.0 ℃ and the RH of 50% +/-10% for 4-24 hours after being cleaned.
Furthermore, the amount of the cosmetic to be applied according to the gram weight of the hair bundle, the actual use amount of the product and the use times is determined, and the cosmetic to be applied is not limited. Preferably, the sample amount is determined to be 0.25 ml/g shampoo, 0.15 ml/g conditioner or hair mask, 0.025 ml/g essential oil. The syringe can be used for sucking a required amount of sample, the sample of the syringe is uniformly extruded on the hair piece, the hair bundle is clamped and pulled for 30 times from top to bottom with fixed force by the palm, and the sample is received for 1min, so that the sample is fully and uniformly permeated on the hair bundle.
The invention also provides application of the detection method of the dynamic wet hair comb property in testing the hair comb property of the washing and caring cosmetic, and can judge the effect of the washing and caring cosmetic on improving the wet hair comb property of hair bundles by combining with the static wet hair comb property commonly used in the field.
Compared with the prior art, the invention has the advantages that:
the invention utilizes the advantages and characteristics of the dynamic carding instrument to test the dynamic change process of the wet hair comb property, thereby researching the influence of the washing and caring cosmetics on the wet hair comb property in the dynamic process, creating the beginning of the dynamic process detection of the wet hair comb property and solving the single traditional wet hair comb property test. The invention combines the static wet hair comb property detection on the dynamic carding instrument, can simultaneously carry out wet hair molding and static wet hair comb property test, reduces test steps, realizes automatic wet hair molding, foaming, constant temperature spraying and quick carding, avoids artificial interference factors, has easy operation and reproduction of the result, and is favorable for the person skilled in the art to judge the advantages and disadvantages of the hair washing and care product formula and the influence process on the hair comb property, thereby screening the washing and care product with higher quality.
Detailed Description
The invention is further described in connection with the following embodiments, but the invention is not limited thereto.
It should be noted in advance that the model of the dynamic carding instrument used in the embodiment of the invention is SK-7A, each embodiment comprises 3 groups of comparison groups corresponding to sample matrixes, the used hair pieces are uniform in-vitro hair pieces of a real person, and the specifications are 280-mm times of length, 55-mm times of thickness, 5-mm and 6-g of weight. The processing steps of the hair piece before use are as follows: soaking the hair pieces in 500 mL sodium dodecyl sulfate solution containing 5 g/L, washing with clear water after 30 min in 40 ℃ constant temperature water bath, and standing in a constant temperature and humidity room with 50% ± 10% RH at 22.0 ℃ plus or minus 1.0 ℃ for 4-24 h.
Example 1
The wet hair comb property of olive gel smooth hair conditioner is tested, and the specific steps are as follows:
1) Respectively placing 5 groups of clean hair pieces in a dynamic carding instrument, carding for 3 times while spraying back and forth, carding for 5 times to remove redundant moisture, performing 2 times of wet carding test, and calculating average static wet hair carding work before the hair pieces are used as samples;
2) Carrying out 15 times of wet combing tests while continuing to spray back and forth, and calculating average dynamic wet combing work before the hair piece is used;
3) After the spraying is finished, uniformly smearing the olive gel smoothing and hair smoothing agent on the hair piece, carding for 10 times, then spraying back and forth, simultaneously carrying out 15 times of wet combing test, and calculating average dynamic wet combing work after the hair piece is used;
4) After spraying, carding for 5 times to remove redundant water, performing wet carding test for 2 times, and calculating average static wet hair carding work after sample application of the hair piece;
5) After the test is finished, calculating average change rate and significance difference of static wet hair combing work and dynamic wet hair combing work before and after the hair piece is used, and judging the effect of the olive gel smooth hair conditioner on improving static and dynamic wet hair combing property.
Specifically, the test program of the editing dynamic tester is: program 1: comb/spray (round trip), 3 times, ON; program 2: comb, 5 times, ON; program 3: comb 2 times, ON; program 4: comb/spray (round trip), 15 times, OFF; program 5: combing for 10 times, and performing ON; program 6: comb/spray (round trip), 15 times, ON; program 7: comb, 5 times, ON; program 8: comb, 2 times, ON; after the pause of procedure 4, the test was continued after 0.15 ml/g olive gel smooth hair conditioner was applied to the hair tresses.
Example 2
The wet comb property of the moisturizing and smoothing anti-dandruff shampoo is measured, and the specific steps are as follows:
1) Respectively placing 5 groups of clean hair pieces in a dynamic carding instrument, carding for 3 times while spraying back and forth, carding for 5 times to remove redundant moisture, performing 2 times of wet carding test, and calculating average static wet hair carding work before the hair pieces are used as samples;
2) Carrying out 15 times of wet combing tests while continuing to spray back and forth, and calculating average dynamic wet combing work before the hair piece is used;
3) After the spraying is finished, uniformly smearing the moisturizing and smooth anti-dandruff shampoo on the hair pieces, carding for 10 times, then spraying back and forth, simultaneously carrying out 15 times of wet combing test, and calculating the average dynamic wet combing work of the hair pieces after the hair pieces are used;
4) After spraying, carding for 5 times to remove redundant water, performing wet carding test for 2 times, and calculating average static wet hair carding work after sample application of the hair piece;
5) After the test is finished, calculating the average change rate and the significance difference of the static wet hair combing function and the dynamic wet hair combing function before and after the sample application of the hair piece, and judging the effect of the moisturizing and smoothing anti-dandruff shampoo on improving the static and dynamic wet hair combing property.
Specifically, the test program of the editing dynamic tester is: program 1: comb/spray (round trip), 3 times, ON; program 2: comb, 5 times, ON; program 3: comb 2 times, ON; program 4: comb/spray (round trip), 15 times, OFF; program 5: combing for 10 times, and performing ON; program 6: comb/spray (round trip), 15 times, ON; program 7: comb, 5 times, ON; program 8: comb, 2 times, ON; after program 4 was suspended, the test was continued after the moisturizing and smoothing anti-dandruff shampoo was applied to the hair tress at 0.25 ml/g.
Example 3
The wet hair comb property of soapberry balance anti-dandruff shampoo is measured, and the specific steps are as follows:
1) Respectively placing 5 groups of clean hair pieces in a dynamic carding instrument, carding for 3 times while spraying back and forth, carding for 5 times to remove redundant moisture, performing 2 times of wet carding test, and calculating average static wet hair carding work before the hair pieces are used as samples;
2) Carrying out 15 times of wet combing tests while continuing to spray back and forth, and calculating average dynamic wet combing work before the hair piece is used;
3) After the spraying is finished, uniformly smearing soapberry balance anti-dandruff shampoo on the hair pieces, carding for 10 times, then spraying back and forth, simultaneously carrying out 15 times of wet combing test, and calculating average dynamic wet combing work after the hair pieces are used as samples;
4) After spraying, carding for 5 times to remove redundant water, performing wet carding test for 2 times, and calculating average static wet hair carding work after sample application of the hair piece;
5) After the test is finished, calculating average change rate and significance difference of static wet hair combing work and dynamic wet hair combing work before and after the hair piece is used, and judging the effect of the soapberry balance anti-dandruff shampoo on improving static and dynamic wet hair combing property.
Specifically, the test program of the editing dynamic tester is: program 1: comb/spray (round trip), 3 times, ON; program 2: comb, 5 times, ON; program 3: comb 2 times, ON; program 4: comb/spray (round trip), 15 times, OFF; program 5: combing for 10 times, and performing ON; program 6: comb/spray (round trip), 15 times, ON; program 7: comb, 5 times, ON; program 8: comb, 2 times, ON; after program 4 was suspended, the test was continued after soapberry balance anti-dandruff shampoo 0.25 ml/g was applied to the hair tress.
Example 4
The wet comb property of the one-minute hair treatment of Australian treasure is measured, and the specific steps are as follows:
1) Respectively placing 5 groups of clean hair pieces in a dynamic carding instrument, carding for 3 times while spraying back and forth, carding for 5 times to remove redundant moisture, performing 2 times of wet carding test, and calculating average static wet hair carding work before the hair pieces are used as samples;
2) Carrying out 15 times of wet combing tests while continuing to spray back and forth, and calculating average dynamic wet combing work before the hair piece is used;
3) After spraying, uniformly smearing the hair after one minute of hair treatment on the Australian treasures, carding for 10 times, spraying back and forth, simultaneously carrying out 15 times of wet combing test, and calculating average dynamic wet combing work after the hair is used as a sample;
4) After spraying, carding for 5 times to remove redundant water, performing wet carding test for 2 times, and calculating average static wet hair carding work after sample application of the hair piece;
5) After the test is finished, calculating average change rate and significance difference of static wet hair combing work and dynamic wet hair combing work before and after the sample application of the hair piece, and judging the effect of improving static and dynamic wet hair combing property by one-minute oil treatment of Australian Bao.
Specifically, the test program of the editing dynamic tester is: program 1: comb/spray (round trip), 3 times, ON; program 2: comb, 5 times, ON; program 3: comb 2 times, ON; program 4: comb/spray (round trip), 15 times, OFF; program 5: combing for 10 times, and performing ON; program 6: comb/spray (round trip), 15 times, ON; program 7: comb, 5 times, ON; program 8: comb, 2 times, ON; after program 4 was suspended, the test was continued after one minute treatment of Australian Bao with 0.15. 0.15 ml/g applied to the hair tress.
The analysis of the comb data before and after sampling of examples 1-4 above was performed using statistical analysis software, respectively, with the following results:
example 1 after application of olive gel smooth hair conditioner, static wet hair combing work was significantly reduced by 29% (p=0.004) and dynamic wet hair combing work was significantly reduced by 38% (p=0.001). The olive hair-setting and smoothing conditioner has the effects of improving static wet hair comb property and dynamic wet hair comb property of hair bundles.
Example 2 after the moisturizing and smoothing anti-dandruff shampoo is used, the static wet hair combing work is obviously improved by 24% (p=0.021), and the dynamic wet hair combing work is obviously improved by 29% (p < 0.001), which shows that the moisturizing and smoothing anti-dandruff shampoo does not have the efficacy of improving the static wet hair combing property and the dynamic wet hair combing property.
Example 3 after the hair piece was used with soapberry balanced anti-dandruff shampoo, the static wet hair combing work was significantly reduced by 42% (p=0.001), and the dynamic wet hair combing work was significantly reduced by 30% (p < 0.001). The soapberry balance anti-dandruff shampoo has the effects of improving static wet hair comb property and dynamic wet hair comb property of hair bundles.
Example 4 after one minute treatment with australian hair treatment, the static wet combing work was significantly reduced by 28% (p=0.003) and the dynamic wet combing work was significantly reduced by 37% (p < 0.001). The Australian-style hair treatment oil for one minute has the effects of improving static wet hair comb property and dynamic wet hair comb property of the hair bundle.
Therefore, the result measured by the method disclosed by the invention is effectively consistent with the formula, and the method has better reference and accuracy.
It will be understood that the above embodiments are further illustrative of the present invention and are not intended to limit the scope of the invention, and that all other modifications and variations which may be obtained without the inventive effort by those skilled in the art are within the scope of the invention.
Claims (10)
1. A method for detecting the improvement of dynamic wet hair combability of a washing and caring cosmetic, which is characterized by comprising the following steps:
1) Respectively placing at least 5 groups of clean hair pieces in a dynamic carding instrument, spraying back and forth, simultaneously carrying out multiple wet combing tests, and calculating average dynamic wet combing work before the hair pieces are used;
2) Uniformly smearing the washing and caring cosmetics to be tested on the hair piece, spraying back and forth, performing multiple wet comb tests, and calculating average dynamic wet comb management work of the hair piece after sample application;
3) After the test is finished, calculating the average change rate and the significance difference of the dynamic wet hair combing work before and after the sample application of the hair piece, and judging the effect of the to-be-tested washing and caring cosmetic on improving the dynamic wet hair combing property.
2. The method for detecting the improved dynamic wet hair combability of the washing and caring cosmetic according to claim 1, wherein the washing and caring cosmetic to be detected is considered to have the effect of remarkably improving the dynamic wet hair combability of the hair bundle when the dynamic wet hair combability change rate is less than 0 and the p value is less than 0.05.
3. The method for detecting the improvement of wet hair combability by a cosmetic product according to claim 2, characterized in that,
the step 1) further comprises wet combing test carried out after back and forth spraying, and average static wet combing work before sample application of the hair piece is calculated;
step 2) also comprises a wet comb test carried out after the back and forth spraying is finished, and calculating average static wet comb work after the sample is used for the hair piece;
and 3) calculating the average change rate and the significance difference of the static wet hair combing work before and after the hair piece is used, and judging the effect of the to-be-tested washing and caring cosmetic on improving the static wet hair combing property.
4. A method for detecting the improvement of dynamic wet hair combability by a cosmetic according to claim 3, wherein the cosmetic to be tested is considered to have a remarkable effect of improving the static wet hair combability of a hair bundle when the static wet hair combability rate is less than 0 and the p value is less than 0.05.
5. The method for detecting the improved dynamic wet hair combability of the cosmetic according to claim 4, wherein the cosmetic to be detected is considered to have the effect of remarkably improving the wet hair combability of the hair bundle when the change rates of the static wet hair combing work and the dynamic wet hair combing work are both less than 0 and the p value is both less than 0.05.
6. The method for detecting the improved dynamic wet hair combability of a cosmetic product according to claim 1, wherein the program control is set for the dynamic carding machine to perform the detection.
7. The method for detecting the improved dynamic wet hair combability of the washing and caring cosmetic according to claim 1, wherein the hair pieces in the step 1) are all in-vitro hair pieces of a real person.
8. The method for detecting the improvement of dynamic wet hair combability by using a cosmetic for washing and caring according to claim 7, wherein the step 1) is to wash the hair piece with a sodium dodecyl sulfate solution and clear water.
9. The method for detecting the improved dynamic wet hair combability of the washing and caring cosmetics according to claim 8, wherein the step 1) is characterized in that after the hair piece is washed, the hair piece is placed in a constant temperature and humidity chamber at 22.0 ℃ +/-1.0 ℃ and 50% +/-10% RH for 4-24 hours in the constant temperature and humidity chamber.
10. Use of the detection method according to any one of claims 1 to 9 for testing the combing properties of a cosmetic product for wet hair.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310561769.XA CN116930410A (en) | 2023-05-18 | 2023-05-18 | Detection method for improving dynamic wet hair comb property of washing and caring cosmetics and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310561769.XA CN116930410A (en) | 2023-05-18 | 2023-05-18 | Detection method for improving dynamic wet hair comb property of washing and caring cosmetics and application thereof |
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| CN116930410A true CN116930410A (en) | 2023-10-24 |
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| CN202310561769.XA Pending CN116930410A (en) | 2023-05-18 | 2023-05-18 | Detection method for improving dynamic wet hair comb property of washing and caring cosmetics and application thereof |
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| Country | Link |
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| CN (1) | CN116930410A (en) |
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- 2023-05-18 CN CN202310561769.XA patent/CN116930410A/en active Pending
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