CN112213373A - Method for rapidly detecting antistatic performance of hair washing and caring products - Google Patents
Method for rapidly detecting antistatic performance of hair washing and caring products Download PDFInfo
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- CN112213373A CN112213373A CN202010981080.9A CN202010981080A CN112213373A CN 112213373 A CN112213373 A CN 112213373A CN 202010981080 A CN202010981080 A CN 202010981080A CN 112213373 A CN112213373 A CN 112213373A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/60—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrostatic variables, e.g. electrographic flaw testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
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Abstract
The invention discloses a method for rapidly detecting the antistatic performance of a hair washing and caring product, which is characterized in that the action of combing hair in daily life is simulated, a flat hair bundle is combed and tested by a dynamic combing performance tester, and the maximum electrostatic voltage generated at the moment that a mechanical comb leaves the hair is taken as an expression index to represent the surface electrostatic voltage of the hair in the state; the change condition of the electrostatic voltage on the surface of the hair at the moment that the mechanical comb leaves the hair bundle before and after the same product is used in a contrast mode is represented by the electrostatic voltage difference value, the antistatic performance of the product is good and bad, and the larger the electrostatic voltage difference value is, the better the antistatic performance of the product is. The method can directly carry out quantitative measurement on the electrostatic voltage on the hair surface, has simple and convenient operation, high speed and high repeatability, and can be used for quickly detecting antistatic hair products.
Description
Technical Field
The invention relates to a method for rapidly detecting the antistatic performance of a hair washing and caring product, belonging to the technical field of performance characterization.
Background
At present, systematic standards are established in the domestic detection method for the antistatic performance of textile products, for example, a half-life period method, a triboelectric charging voltage method, a charge density method, a foreign matter charging method during the undressing of finished clothes, a working clothes triboelectric charging method, an interelectrode equivalent resistance method, a charge density method and the like are introduced in detail in GB12703-1991 'textile static testing method'. However, there is no perfect standard for the testing method and expression index of the antistatic performance of the hair washing and caring products. And the relevant reports are found by referring to the antistatic test method of the fabric softener and the antistatic test method of the textile material of national standards GB/T16801-1997 and GB/T14342-93 and the test method of the antistatic performance of the textile material of FZ/T01042-1996 to evaluate the antistatic performance of the shampoo. The testing methods are indirectly characterized by the electrostatic decay time of the hair fiber surface and the like, and the electrostatic voltage of the hair surface cannot be directly measured, so that the antistatic effect of the hair washing and caring product on the whole hair bundle is reflected.
Disclosure of Invention
The invention aims to provide a method for quickly detecting the antistatic performance of a hair washing and caring product, and establishes a quick, simple, convenient and accurate electrostatic voltage detection method for detecting the antistatic effect of the hair washing and caring product.
The method is simple, convenient and quick, and can be used for identifying the antistatic performance of hair washing and caring products.
The invention provides a method for rapidly detecting the antistatic performance of a hair washing and protecting product, which comprises the following steps:
(1) the flat hair tresses are washed twice by sodium dodecyl sulfate solution (the mass concentration is w =5% -15%), surface grease and impurities are removed, and then the flat hair tresses are placed in a fume hood to be dried.
(2) And (3) transferring the cleaned flat hair tresses to a constant temperature and humidity environment (25 +/-2 ℃, 50 +/-5% RH and RH as the environment humidity) for balancing for 8-16 h.
(3) The mechanical comb was moved at a constant speed V across the hair strand (V =100mm/s-200 mm/s) from the root to the tail using a dynamic combing performance tester, and the magnitude of the electrostatic voltage on the hair surface at the instant the mechanical comb left the hair strand was recorded as the magnitude of the electrostatic voltage on the hair surface before using the product.
(4) The hair washing and caring product to be tested is smeared on the surface of the hair bundle, the hair bundle is rubbed with uniform force for 1min-2min, and then the hair bundle is washed clean and dried. The method comprises the steps of selecting samples to be detected in different amounts according to different specifications of hair bundles by adopting commercially available flat hair bundles, wherein the amount of 15g of flat hair bundles is 2-3 g.
(5) And transferring the rinsed flat hair tresses to a constant temperature and humidity environment (25 +/-2 ℃, 50 +/-5% RH) for balancing for 8-16 h.
(6) And (4) repeating the step (3) to measure the surface electrostatic voltage of the hair bundle after the hair washing and care product is used.
(7) The change condition of the electrostatic voltage on the surface of the hair at the moment that the mechanical comb leaves the hair bundle before and after the same product is used in a contrast mode is represented by the electrostatic voltage difference value, the antistatic performance of the product is good and bad, and the larger the electrostatic voltage difference value is, the better the antistatic performance of the product is.
After each combing is finished, the electrostatic characteristics of the hair in the state are represented by the electrostatic voltage of the surface of the hair at the moment that the mechanical comb leaves the hair bundle, the antistatic performance of the product is represented by the electrostatic voltage difference value of the surfaces of the hair before and after the product is used, and the larger the electrostatic voltage difference value is, the better the antistatic performance of the product is. Each flat hair bundle can be repeatedly measured for static voltage for a plurality of times so as to obtain accurate measurement results.
The invention has the beneficial effects that:
(1) the antistatic performance detection method can directly measure the electrostatic voltage on the surface of the hair and reflect the integral antistatic effect of the hair washing and caring product on the hair bundle.
(2) Compared with the existing static test method, the method for detecting the antistatic performance is quicker, simpler and more convenient.
(3) The method for detecting the antistatic performance of the hair washing and caring products can effectively identify the antistatic effect of different hair washing and caring products, and has potential application value in the fields of product efficacy characterization and formula development.
Drawings
FIG. 1 is a graph showing the variation of the electrostatic voltage on the surface of hair before and after use of different hair care products.
Detailed Description
The present invention is further illustrated by, but is not limited to, the following examples.
4 commercially available hair washing and caring products are selected, the electrostatic voltage of the surface of the hair bundle before and after different products are used is respectively tested by using the method of the invention (the control group is not subjected to washing and caring treatment), each product is respectively measured for 3 times, and the measurement results are averaged. The specific test flow is as follows:
(1) the flat tresses were washed twice with sodium dodecyl sulfate solution (w = 10%), removed of surface oils and impurities, and then placed in a fume hood for air drying.
(2) And transferring the washed flat hair tresses to a constant temperature and humidity environment for balancing for 12 h.
(3) Using a dynamic combing performance tester, a mechanical comb was passed through the hair bundle at a constant speed V =200mm/s, moving from the root to the tail, and the magnitude of the electrostatic voltage on the surface of the hair at the instant the mechanical comb left the hair bundle was recorded as the magnitude of the electrostatic voltage on the surface of the hair before using the product.
(4) The hair washing and caring product to be tested 3g is smeared on the surface of a flat hair bundle (15 g), the hair bundle is kneaded for 2min with uniform force, and then the hair bundle is washed clean and dried.
(5) The rinsed hair tresses were transferred to a constant temperature and humidity environment (25 ℃, 50% RH) and allowed to equilibrate for 12 h.
(6) And (4) repeating the step (3) to measure the electrostatic voltage on the surface of the hair strand after the product is used.
(7) The change of the electrostatic voltage on the surface of the hair at the moment when the mechanical comb leaves the hair bundle before and after the same product is used is compared, and the antistatic effect of the product is judged.
The change of the electrostatic voltage on the surface of the hair before and after different group experiments is as follows: the larger the difference value of the static voltage is, the better the antistatic effect of the product is. The test results are shown in fig. 1:
the experimental result shows that the results of two measurements of the control group have no obvious difference, and the test method has high reproducibility. The static voltage on the surface of the hair is obviously reduced before and after the shampoo A, D is used, and the static voltage on the surface of the hair in the B, C groups is not obviously reduced, which shows that the shampoo A, D has obvious antistatic effect, and the shampoo B, C has no antistatic effect.
In a word, experiments and data analysis show that the method is simple to operate and can quickly distinguish the antistatic effect of different products after being used.
Claims (8)
1. A method for rapidly detecting the antistatic performance of a hair washing and caring product is characterized by comprising the following steps:
(1) washing the flat hair bundle twice with a sodium dodecyl sulfate solution, removing surface grease and impurities, and then putting the hair bundle in a fume hood for airing;
(2) transferring the cleaned flat hair bundle to a constant temperature and humidity environment for balancing;
(3) using a dynamic combing performance tester to enable a mechanical comb to penetrate through a hair bundle and move from the root to the tail of the hair, and recording the change condition of the surface electrostatic voltage of the hair in the process as the surface electrostatic voltage of the hair before using the product;
(4) smearing the hair washing and caring product to be tested on the surface of the hair bundle, rubbing the hair bundle with uniform force, washing, and air drying;
(5) transferring the washed hair tresses to a constant temperature and humidity environment for balancing;
(6) repeating the step (3) to measure the electrostatic voltage on the surface of the hair bundle after the product is used;
(7) the change condition of the electrostatic voltage on the surface of the hair at the moment that the mechanical comb leaves the hair bundle before and after the same product is used in a contrast mode is represented by the electrostatic voltage difference value, the antistatic performance of the product is good and bad, and the larger the electrostatic voltage difference value is, the better the antistatic performance of the product is.
2. The method for rapidly detecting the antistatic performance of the hair washing and caring products according to claim 1, characterized in that: the flat hair bundles are all the flat hair bundles made of real human hair.
3. The method for rapidly detecting the antistatic performance of the hair washing and caring products according to claim 1, characterized in that: the mass concentration of the sodium dodecyl sulfate solution is 5-15%.
4. The method for rapidly detecting the antistatic performance of the hair washing and caring products according to claim 1, characterized in that: in the steps (2) and (5), after the flat-plate hair strands are cleaned, placing the flat-plate hair strands in a constant-temperature and constant-humidity environment for balancing for 8-16 hours; the constant temperature and humidity environment is as follows: temperature 25 ± 2 ℃, humidity: 50 +/-5%.
5. The method for rapidly detecting the antistatic performance of the hair washing and caring products according to claim 1, characterized in that: the dynamic carding performance tester is placed in a constant temperature and humidity environment.
6. The method for rapidly detecting the antistatic performance of the hair washing and caring products according to claim 1, characterized in that: and (3) in the test process of the step (3), the mechanical comb penetrates through the hair bundle at a constant speed V, wherein the speed V is 100-200 mm/s.
7. The method for rapidly detecting the antistatic performance of the hair washing and caring products according to claim 6, characterized in that: the mechanical comb was kept dry before testing.
8. The method for rapidly detecting the antistatic performance of the hair washing and caring products according to claim 1, characterized in that: and (4) in the process of washing and protecting the flat plate hair strands, selecting different amounts of the hair washing and protecting products to be detected according to different specifications of the hair strands, wherein 2-3 g of the hair washing and protecting products are used for 15g of the flat plate hair strands.
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| CN202010981080.9A CN112213373A (en) | 2020-09-17 | 2020-09-17 | Method for rapidly detecting antistatic performance of hair washing and caring products |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2442606A1 (en) * | 1978-12-01 | 1980-06-27 | Oreal | Measuring electrostatic charge produced by combing hair - using counter measuring output of voltage to frequency converter connected to copper wire attached to comb |
| JPS62294960A (en) * | 1986-06-16 | 1987-12-22 | Shiseido Co Ltd | Method and apparatus for measuring amount of static charge on hair |
| US4983923A (en) * | 1988-07-13 | 1991-01-08 | Kanebo Ltd. | Frictional electrostatic voltage measuring equipment |
| JP2007020639A (en) * | 2005-07-12 | 2007-02-01 | Toyobo Co Ltd | Textile product management device and textile product management system |
| JP2010223936A (en) * | 2009-02-27 | 2010-10-07 | Shimizu Corp | Static electricity measuring device |
| US20160011233A1 (en) * | 2014-07-14 | 2016-01-14 | The Procter & Gamble Company | Brush sensor for measuring static charge of fibers |
-
2020
- 2020-09-17 CN CN202010981080.9A patent/CN112213373A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2442606A1 (en) * | 1978-12-01 | 1980-06-27 | Oreal | Measuring electrostatic charge produced by combing hair - using counter measuring output of voltage to frequency converter connected to copper wire attached to comb |
| JPS62294960A (en) * | 1986-06-16 | 1987-12-22 | Shiseido Co Ltd | Method and apparatus for measuring amount of static charge on hair |
| US4983923A (en) * | 1988-07-13 | 1991-01-08 | Kanebo Ltd. | Frictional electrostatic voltage measuring equipment |
| JP2007020639A (en) * | 2005-07-12 | 2007-02-01 | Toyobo Co Ltd | Textile product management device and textile product management system |
| JP2010223936A (en) * | 2009-02-27 | 2010-10-07 | Shimizu Corp | Static electricity measuring device |
| US20160011233A1 (en) * | 2014-07-14 | 2016-01-14 | The Procter & Gamble Company | Brush sensor for measuring static charge of fibers |
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