Method for evaluating cleaning ability of skin cleaning product

A technology of cleaning ability and evaluation method, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems that the test results are not objective enough, the investigation of environmental factors affecting the cleaning ability of cleaning products is not comprehensive enough, etc., to achieve control of test costs, Evaluation results are objective and the effect of improving accuracy

Pending Publication Date: 2022-04-12
GUANGZHOU HONDU FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the investigation of environmental factors affecting the cleaning ability of cleaning products is not comprehensive enough, and the test results are not objective enough. Moreover, the test results are also affected by the ultraviolet absorption effect of the subject's own skin.

Method used

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  • Method for evaluating cleaning ability of skin cleaning product
  • Method for evaluating cleaning ability of skin cleaning product
  • Method for evaluating cleaning ability of skin cleaning product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] This example provides a method for evaluating the cleaning ability of skin cleaning products. Proceed as follows:

[0065] Step 1) Use a sampler to cut 24 pieces of artificial leather of the same size, each group of 8 parallel samples, a total of 3 groups of samples, use the ZB-B whiteness meter (Hangzhou Zhibang Automation Technology Co., Ltd.) to preset the artificial leather Position whiteness value R 457 To test, denoted as F 0 ;

[0066] Step 2) Apply make-up products (Sekkiseimei White BB Cream, purchased from Kose Cosmetics Co., Ltd., Japan) evenly on the preset positions of the three groups of samples, with an area of ​​about 0.78cm 2 , the initial application amount is about 4.50mg / cm 2 , After the product is applied, it will be pre-dried for 80 minutes, and the temperature is set at 90°C. After drying the pretreatment, the coating is obtained. Collect the whiteness value R of the coating surface again according to the above method 457 To test, denoted a...

Embodiment 2

[0077] This example provides a method for evaluating the cleaning ability of skin cleaning products. The only difference from Example 1 is that the drying pretreatment temperature in step 2) is set to 48°C. The F collected in this embodiment 0 , F 1 , F 2 , according to Ni=100% × (F 2 -F 1 ) / (F 0 -F 1 ) formula to calculate the change rate of whiteness value, that is, the cleaning rate, and obtain the cleaning rate Ni of each parallel sample, as shown in Table 3.

[0078] According to the Q value test method or the Grubbs method, under the 90% confidence level, the suspicious values ​​in the cleaning rate Ni of the 8 parallel tests are selected, and in the present embodiment, the Ni in the parallel tests does not exceed the limit range . Calculate the average value and average deviation of 8 parallel test cleaning rates successively, as shown in table 4;

[0079] table 3

[0080]

[0081] Table 4

[0082]

[0083] Note: *, ** all indicate significant differenc...

Embodiment 3

[0086] This example provides a method for evaluating the cleaning ability of skin cleaning products. The only difference from Embodiment 1 is that the number of straight-line back and forth in step 3) is 30 times. The F collected in this embodiment 0 , F 1 , F 2 , according to Ni=100%×(F 2 -F 1 ) / (F 0 -F 1 ) formula to calculate the change rate of whiteness value, that is, the cleaning rate, and obtain the cleaning rate Ni of each parallel sample, as shown in Table 5.

[0087] According to the Q value test method or the Grubbs method, under the 90% confidence level, the suspicious values ​​in the cleaning rate Ni of the 8 parallel tests are selected, and in the present embodiment, the Ni in the parallel tests does not exceed the limit range . Calculate the average value and average deviation of 8 parallel test cleaning rates successively, as shown in table 6;

[0088] table 5

[0089]

[0090] Table 6

[0091]

[0092] Note: *, ** all indicate significant dif...

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Abstract

The invention relates to the technical field of daily chemical products, in particular to a method for evaluating the cleaning capacity of skin cleaning products. Comprising the following steps: taking a carrier material, detecting a whiteness value of a preset position of the carrier material, and recording the whiteness value as F0; detecting the whiteness value of the surface of the coating material, and recording the whiteness value as F1; applying a to-be-tested skin cleaning product to the coating, rubbing and wiping, washing, drying after washing, detecting the whiteness value of a preset position of the dried carrier material, and recording as F2; calculating the change rate of the whiteness value according to a formula I, and recording the change rate as Ni value: carrying out a plurality of parallel tests to obtain a plurality of Ni values, rejecting abnormal values, calculating the average value of the Ni values, and taking the average value of the Ni values of the skin cleaning product to be tested as an evaluation index of the cleaning capability, the cleaning capability of the to-be-tested skin cleaning product is better. The method for evaluating the cleaning ability of the skin product is more objective and reliable.

Description

technical field [0001] The invention relates to the technical field of daily chemical products, in particular to an evaluation method for the cleaning ability of skin cleaning products. Background technique [0002] The surface of the skin can be cared for with skin care and skin care products, and can also be modified with make-up products. Before using skin nourishing and skin care products for nursing, cleansing products are usually required to clean the skin surface and remove sebum dirt. After using make-up products for modification, cleansing products are also required to clean the skin surface, because beeswax, titanium dioxide, mica, film-forming agents, toner and other raw materials of make-up products cannot be absorbed by the skin. It will increase the skin burden on the skin surface, resulting in rough skin, enlarged pores, acne, pigmentation, dull complexion and other problems, seriously affecting the health and appearance of the skin. [0003] At present, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
Inventor 许泽楷梁简青雷唯蔡文彬周姝
Owner GUANGZHOU HONDU FINE CHEM CO LTD
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