CN104374872B - The sun-proof performance test methods of a kind of suncream - Google Patents
The sun-proof performance test methods of a kind of suncream Download PDFInfo
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- CN104374872B CN104374872B CN201310356895.8A CN201310356895A CN104374872B CN 104374872 B CN104374872 B CN 104374872B CN 201310356895 A CN201310356895 A CN 201310356895A CN 104374872 B CN104374872 B CN 104374872B
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Abstract
The present invention discloses the sun-proof performance test methods of a kind of suncream, the first pilot region is selected at study subject skin of back, get the Ultraviolet radiation of a setting numerical value point various dose, obtain the first minimal erythema dose of this study subject normal skin, ultraviolet is the ultraviolet of the setting wavelength adopting excimer laser instrument modulation; By 2mg/cm
2consumption, by suncream sample even application to be measured in the second test site of study subject skin of back, get the Ultraviolet radiation of a setting numerical value point various dose, obtain second minimal erythema dose of this study subject skin in protection situation, wherein, ultraviolet is the ultraviolet of the setting wavelength adopting excimer laser instrument modulation; By the second minimal erythema dose divided by the first minimal erythema dose, obtain the SPF of suncream sample to be measured; Calculate the arithmetic mean of the SPF of multiple study subject, using the final SPF of its integral part as suncream sample to be measured.
Description
Technical field
The present invention relates to cosmetic field, in particular to the sun-proof performance test methods of a kind of suncream.
Background technology
According to GB/T18830-2009, solar UV irradiation refers to that wavelength is the electromagnetic radiation of 280nm ~ 400nm.Wherein solar UV UVA refers to the solar UV irradiation of wavelength in 320nm ~ 400nm scope; Solar UV UVB refers to the solar UV irradiation of wavelength in 290nm ~ 320nm scope; Solar UV UVC refers to the solar UV irradiation of wavelength in 200nm ~ 290nm scope.Large quantity research shows, excessive UV radiation to terrestrial ecosystem and human health extremely harmful.
Suncream is the cosmetics with sun-proof result, and ultraviolet can be avoided the damage of skin.
The sun-proof result of mark and publicity suncream is the common practice in sun care preparations market, wherein SPF(SunProtectionFactor, SPF) be the performance index for publicizing sun-proof result comparatively commonly used.
The spf value of current mensuration suncream generally adopts xenon arc lamp solar simulator as artificial light source, need to be furnished with complicated filtering system carrying out UV radiation, and the required time is longer, causes inconvenience to experimenter, even shines bubble.
Summary of the invention
The invention provides the sun-proof performance test methods of a kind of suncream, in order to overcome at least one problem existed in prior art.
For achieving the above object, the invention provides the sun-proof performance test methods of a kind of suncream, comprising the following steps:
The first pilot region is selected at study subject skin of back, get the Ultraviolet radiation of a setting numerical value point various dose, occur that the minimum exposure dose of erythema or the shortest irradiation time are the first minimal erythema dose of this study subject normal skin with skin, wherein, ultraviolet is the ultraviolet of the setting wavelength adopting excimer laser instrument modulation, and the first test site is not less than 30cm
2;
By 2mg/cm
2consumption, by suncream sample even application to be measured in the second test site of study subject skin of back, get the Ultraviolet radiation of a setting numerical value point various dose, occur that the minimum exposure dose of erythema or the shortest irradiation time are second minimal erythema dose of this study subject skin in protection situation with skin, wherein, ultraviolet is the ultraviolet of the setting wavelength adopting excimer laser instrument modulation, and the second test site is not less than 30cm
2;
By the second minimal erythema dose divided by the first minimal erythema dose, obtain the SPF of suncream sample to be measured;
By 2mg/cm
2consumption, by standard suncream sample even application in the 3rd test site of study subject skin of back, get the Ultraviolet radiation of a setting numerical value point various dose, occur that the minimum exposure dose of erythema or the shortest irradiation time are three minimal erythema dose of this study subject skin in protection situation with skin, if the difference of the standard minimal erythema dose of the 3rd minimal erythema dose and standard suncream is within the scope of permissible error, then SPF is credible, wherein, ultraviolet is the ultraviolet of the setting wavelength adopting excimer laser instrument modulation, 3rd test site is not less than 30cm
2,
Calculate the arithmetic mean of the SPF of multiple study subject, using the final SPF of its integral part as suncream sample to be measured.
Optionally, setting wavelength is 308nm.
Optionally, setting a numerical value point is 5 points.
Optionally, the ultraviolet dosage of 5 points of irradiation increases progressively is 25% or 12%.
Optionally, in setting-up time, if a setting numerical value point does not all occur that erythema or a setting numerical value point all occur that erythema or testing site erythema occur at random, then discriminating test result is invalid.
Optionally, if the difference of the standard minimal erythema dose of the 3rd minimal erythema dose and standard suncream exceeds permissible error scope, then SPF is insincere, the ultraviolet dosage that excimer laser instrument produces is adjusted, until the difference of the standard minimal erythema dose of the 3rd minimal erythema dose and standard suncream is within the scope of permissible error.
Optionally, study subject is for becoming human or animal.
In the above-described embodiments, by excimer laser instrument, ultraviolet is modulated, the ultraviolet effect of solar simulated can be reached fast, must adopt compared with filtering system with adopting xenon arc lamp solar simulator in prior art, the time of required test is shorter, and can not damage to study subject when detecting.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the sun-proof performance test methods process flow diagram of suncream of one embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not paying the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is the sun-proof performance test methods process flow diagram of suncream of one embodiment of the invention.As shown in the figure, the method comprises the following steps:
S110, the first pilot region is selected at study subject skin of back, get the Ultraviolet radiation of a setting numerical value point various dose, occur that the minimum exposure dose of erythema or the shortest irradiation time are the first minimal erythema dose of this study subject normal skin with skin, wherein, ultraviolet is the ultraviolet of the setting wavelength adopting excimer laser instrument modulation, and the first test site is not less than 30cm
2;
Minimal erythema dose causes erythema, and its scope reaches the Ultraviolet radiation lowest dose level (J/m required for point of irradiation edge
2) or the shortest time (second).
Concrete implement this step time, setting numerical value can be clicked and be selected as 5 points, occur that the minimum exposure dose of erythema or the shortest irradiation time are the first minimal erythema dose of this study subject normal skin with skin on 5 points.Preferably, the ultraviolet wavelength of excimer laser instrument can be set to 308nm, when the amplitude that the ultraviolet dosage arranging 5 points of irradiation increases progressively, if the SPF SPF of suncream to be measured is greater than 15, then the amplitude that the ultraviolet dosage of 5 points of irradiation increases progressively can be set to 25%, if the SPF SPF of suncream to be measured is not more than 15, then the amplitude that the ultraviolet dosage of 5 points of irradiation increases progressively can be set to 12%.
Wherein, in setting-up time, if a setting numerical value point does not all occur that erythema or a setting numerical value point all occur that erythema or testing site erythema occur at random, then discriminating test result is invalid, needs to adjust ultraviolet dosage, re-starts test.
S120, by 2mg/cm
2consumption, by suncream sample even application to be measured in the second test site of study subject skin of back, get the Ultraviolet radiation of a setting numerical value point various dose, occur that the minimum exposure dose of erythema or the shortest irradiation time are second minimal erythema dose of this study subject skin in protection situation with skin, wherein, ultraviolet is the ultraviolet of the setting wavelength adopting excimer laser instrument modulation, and the second test site is not less than 30cm
2;
Concrete implement this step time, setting numerical value can be clicked and be selected as 5 points, occur that the minimum exposure dose of erythema or the shortest irradiation time are the first minimal erythema dose of this study subject normal skin with skin on 5 points.Preferably, the ultraviolet wavelength of excimer laser instrument can be set to 308nm, when the amplitude that the ultraviolet dosage arranging 5 points of irradiation increases progressively, if the SPF SPF of suncream to be measured is greater than 15, then the amplitude that the ultraviolet dosage of 5 points of irradiation increases progressively can be set to 25%, if the SPF SPF of suncream to be measured is not more than 15, then the amplitude that the ultraviolet dosage of 5 points of irradiation increases progressively can be set to 12%.
Wherein, in setting-up time, if a setting numerical value point does not all occur that erythema or a setting numerical value point all occur that erythema or testing site erythema occur at random, then discriminating test result is invalid, needs to adjust ultraviolet dosage, re-starts test.
S130, by the second minimal erythema dose divided by the first minimal erythema dose, obtains the SPF of suncream sample to be measured;
S140, by 2mg/cm
2consumption, by standard suncream sample even application in the 3rd test site of study subject skin of back, get the Ultraviolet radiation of a setting numerical value point various dose, occur that the minimum exposure dose of erythema or the shortest irradiation time are three minimal erythema dose of this study subject skin in protection situation with skin, if the difference of the standard minimal erythema dose of the 3rd minimal erythema dose and standard suncream is within the scope of permissible error, then SPF is credible, wherein, ultraviolet is the ultraviolet of the setting wavelength adopting excimer laser instrument modulation, 3rd test site is not less than 30cm
2,
Wherein, the standard minimal erythema dose of standard suncream is known numerical value.
Concrete implement this step time, setting numerical value can be clicked and be selected as 5 points, occur that the minimum exposure dose of erythema or the shortest irradiation time are the first minimal erythema dose of this study subject normal skin with skin on 5 points.Preferably, the ultraviolet wavelength of excimer laser instrument can be set to 308nm, when the amplitude that the ultraviolet dosage arranging 5 points of irradiation increases progressively, if the SPF SPF of suncream to be measured is greater than 15, then the amplitude that the ultraviolet dosage of 5 points of irradiation increases progressively can be set to 25%, if the SPF SPF of suncream to be measured is not more than 15, then the amplitude that the ultraviolet dosage of 5 points of irradiation increases progressively can be set to 12%.
Wherein, in setting-up time, if a setting numerical value point does not all occur that erythema or a setting numerical value point all occur that erythema or testing site erythema occur at random, then discriminating test result is invalid, needs to adjust ultraviolet dosage, re-starts test.
In addition, if the difference of the standard minimal erythema dose of the 3rd minimal erythema dose and standard suncream exceeds permissible error scope, then SPF is insincere, the ultraviolet dosage that excimer laser instrument produces is adjusted, until the difference of the standard minimal erythema dose of the 3rd minimal erythema dose and standard suncream is within the scope of permissible error.
S150, calculates the arithmetic mean of the SPF of multiple study subject, using the final SPF of its integral part as suncream sample to be measured.
Wherein, concrete selection how many study subjects detect, and can determine as the case may be, are generally 3-25.
In addition, owing to adopting the ultraviolet of excimer laser instrument modulation specific wavelength, the required test duration is shorter, is generally 2-3 minute, and therefore, study subject can be adult, also can be animal (as rabbit).
In the above-described embodiments, by excimer laser instrument, ultraviolet is modulated, the ultraviolet effect of solar simulated can be reached fast, must adopt compared with filtering system with adopting xenon arc lamp solar simulator in prior art, the time of required test is shorter, and can not damage to study subject when detecting.
One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
One of ordinary skill in the art will appreciate that: the module in the device in embodiment can describe according to embodiment and be distributed in the device of embodiment, also can carry out respective change and be arranged in the one or more devices being different from the present embodiment.The module of above-described embodiment can merge into a module, also can split into multiple submodule further.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in previous embodiment, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of embodiment of the present invention technical scheme.
Claims (7)
1. the sun-proof performance test methods of suncream, is characterized in that, comprise the following steps:
The first pilot region is selected at study subject skin of back, get the Ultraviolet radiation of a setting numerical value point various dose, occur that the minimum exposure dose of erythema or the shortest irradiation time are the first minimal erythema dose of this study subject normal skin with skin, wherein, ultraviolet is the ultraviolet of the setting wavelength adopting excimer laser instrument modulation, and described first test site is not less than 30cm
2;
By 2mg/cm
2consumption, by suncream sample even application to be measured in the second test site of study subject skin of back, get the Ultraviolet radiation of a described setting numerical value point various dose, occur that the minimum exposure dose of erythema or the shortest irradiation time are second minimal erythema dose of this study subject skin in protection situation with skin, wherein, ultraviolet is the ultraviolet of the setting wavelength adopting excimer laser instrument modulation, and described second test site is not less than 30cm
2;
By described second minimal erythema dose divided by described first minimal erythema dose, obtain the SPF of suncream sample to be measured;
By 2mg/cm
2consumption, by standard suncream sample even application in the 3rd test site of study subject skin of back, get the Ultraviolet radiation of a described setting numerical value point various dose, occur that the minimum exposure dose of erythema or the shortest irradiation time are three minimal erythema dose of this study subject skin in protection situation with skin, if the difference of the standard minimal erythema dose of described 3rd minimal erythema dose and standard suncream is within the scope of permissible error, then described SPF is credible, wherein, ultraviolet is the ultraviolet of the setting wavelength adopting excimer laser instrument modulation, described 3rd test site is not less than 30cm
2,
Calculate the arithmetic mean of the SPF of multiple study subject, using the final SPF of its integral part as suncream sample to be measured.
2. the sun-proof performance test methods of suncream according to claim 1, is characterized in that, described setting wavelength is 308nm.
3. the sun-proof performance test methods of suncream according to claim 1, is characterized in that, a described setting numerical value point is 5 points.
4. the sun-proof performance test methods of suncream according to claim 3, is characterized in that, it is 25% or 12% that the ultraviolet dosage of 5 points of irradiation increases progressively.
5. the sun-proof performance test methods of suncream according to claim 1, it is characterized in that, in setting-up time, if a described setting numerical value point does not all occur that erythema or a described setting numerical value point all occur that erythema or testing site erythema occur at random, then discriminating test result is invalid.
6. the sun-proof performance test methods of suncream according to claim 1, it is characterized in that, if the difference of the standard minimal erythema dose of described 3rd minimal erythema dose and standard suncream exceeds permissible error scope, then described SPF is insincere, the ultraviolet dosage that excimer laser instrument produces is adjusted, until the difference of the standard minimal erythema dose of described 3rd minimal erythema dose and standard suncream is within the scope of permissible error.
7. the sun-proof performance test methods of suncream according to claim 1, is characterized in that, described study subject is for becoming human or animal.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US10163028B2 (en) | 2016-01-25 | 2018-12-25 | Koninklijke Philips N.V. | Image data pre-processing |
| CN107303173B (en) * | 2016-04-20 | 2020-03-17 | 元盛生医电子股份有限公司 | Method and device for detecting minimum erythema dose of individual |
| CN106959285A (en) * | 2017-02-09 | 2017-07-18 | 深圳微美薇健康美容科技有限公司 | Antitan agent index intelligent detection means and its application method |
| CN108169418A (en) * | 2017-12-14 | 2018-06-15 | 广东省保化检测中心有限公司 | The effect of sunscreen product property evaluation method |
| CN111787847A (en) * | 2018-02-26 | 2020-10-16 | 株式会社爱茉莉太平洋 | Skin change measuring device and method using blue light, and blue light irradiation device |
| CN108956606A (en) * | 2018-07-09 | 2018-12-07 | 广东蓝堡生物科技有限公司 | A kind of detection method of sunlight screening skin-protecting product sun-proof function |
| CN110157772A (en) * | 2019-05-20 | 2019-08-23 | 西南医科大学 | A kind of Microorganism Evaluation method of the ultraviolet protection performance of uvioresistant product |
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