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Evaluation method for anti-high temperature damage effect of hair product

An evaluation method and high temperature prevention technology, which is applied in the field of Japanese-related chemical product testing, can solve problems such as high temperature damage prevention, hair damage, and no clear hair damage indicators that are difficult to become hair products, so as to facilitate standardized testing, overcome errors, The effect of standardization

Active Publication Date: 2018-11-23
GUANGZHOU QUALITY SUPERVISION & TESTING INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the research on hair damage caused by high temperature is limited to the basic theory of hair structure such as cuticle and keratin. There is no clear hair damage index, and it is difficult to become an effective and reliable means of preventing high temperature damage of hair products.

Method used

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  • Evaluation method for anti-high temperature damage effect of hair product
  • Evaluation method for anti-high temperature damage effect of hair product
  • Evaluation method for anti-high temperature damage effect of hair product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This embodiment provides a method for evaluating the anti-high temperature damage effect of hair products, comprising the following steps:

[0041] 1 material

[0042] 1.1 Hair strands: Prepare a flat hair strand with a mass of 1.0g±0.1g and a length of about 25cm, wash it with 0.1g of 10% sodium lauryl sulfate aqueous solution, then rinse with water until no foam remains, and place it at a constant temperature Dry in a constant humidity room for later use.

[0043] 1.2 Main instruments: physical property tester Texture Analyzer (TA-XTPlus, Stable MicroSystems, UK); scanning electron microscope (SEM) (JSM-6610LV, Japan JEOL); hair straightener (KF-505, which can meet the temperature control range of 140 ~220°C, Guangdong Huanengda Electric Co., Ltd.).

[0044] 2 methods

[0045] 2.1 Establishment of high temperature damage model

[0046] 2.1.1 Hair bundle treatment: Take 0.1g of 10% sodium lauryl sulfate aqueous solution and apply it evenly on the hair bundle. After...

Embodiment 2

[0068] This example provides a method for evaluating the anti-high temperature damage efficacy of hair products. The method of this embodiment refers to embodiment 1. Hair strands purchased from different batches (A, B, C) were heated at 180°C (treatment group 1) and 200°C (treatment group 2) respectively, and a high temperature damage model was constructed. The results are as follows:

[0069]

[0070] The inventor found in the research that when the temperature for constructing the thermal damage model is controlled at 170-190°C, especially at 180°C, the thermal damage model constructed at this temperature is stable, that is, it will not be damaged due to the use of batches of hair bundles. , hair quality, source, etc. vary, and SEM and hair stretch percentage are stable and consistent.

Embodiment 3

[0072] According to the method of Example 1, when the high temperature damage model was established in this example, taking the blank control group (untreated group) as a reference, 140°C (control group 1), 180°C (implementation group), 220°C ( Control group 2) The hair strands were heated at three temperatures, and three high-temperature damage models were established accordingly, and were pre-used to evaluate the anti-high-temperature damage efficacy of hair products. The results are as follows:

[0073] (1) SEM was used to investigate the SEM scanning results of hair under different temperature conditions, see Figure 1 ~ Figure 4 :

[0074] Blank control group: the hair of the untreated group ( Figure 4 ) hair scales are arranged neatly without falling off;

[0075] Control group 1: treated at 140°C ( figure 1 ) after the hair scales are arranged neatly, no shedding is seen; the hair strands are not significantly different from the blank control group after this temper...

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Abstract

The invention provides an evaluation method for an anti-high temperature damage effect of a hair product. The evaluation method comprises: model group treatment: taking a hair bundle, heating at a temperature not lower than 150 DEG C to obtain a model group of high temperature damage, and detecting the hair surface morphology and stretching percentage of the model group; sample group treatment: taking another hair bundle, rubbing with a hair product sample, performing rinsing and drying, heating at a temperature not lower than 150 DEG C to obtain a sample group, and detecting the hair surfacemorphology and stretching percentage of the sample group; blank control group treatment; analyzing the difference in the hair surface morphology of the sample group, the model group and a blank control group, and the difference in the hair stretching percentage of the sample group, the model group and the blank control group, and judging the anti-high temperature damage effect of the hair productsample. According to the evaluation method for the anti-high temperature damage effect of the hair product, the high temperature damage of the hair is quantitatively and qualitatively reflected, technical support is provided for the enterprise to develop new products and improve the formulation process, and a scientific basis can also be provided for market supervision.

Description

technical field [0001] The invention relates to the detection field of daily chemical products, in particular to an evaluation method for high temperature damage resistance of hair products. Background technique [0002] In daily life, in addition to chemical damage and ultraviolet radiation damage can affect hair quality, high temperature can also cause hair damage. There are two common forms of high temperature damage: instant heat styling damage and hair dryer high temperature damage. Thermal styling damage refers to the damage caused by using electric curlers or electric heating plates to style hair. There have been many research reports; hair dryer high temperature damage generally refers to the process of hair drying with hair dryers in people's daily life. There are also many related research reports on the damage caused by it. High temperature hair damage includes damage to the hair surface and structure, mainly manifested as dry, easy to break hair, rough handle, ...

Claims

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Application Information

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IPC IPC(8): G01N3/08G01N33/50
CPCG01N3/08G01N33/5088G01N2203/028G01N2203/0075G01N2203/0017
Inventor 刘永泉谭建华李慧勇王继才陈媛谢嘉颖熊小婷曾庆杰杨培
Owner GUANGZHOU QUALITY SUPERVISION & TESTING INST
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