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本文应用美国SPF值(防晒指数)法对广东中山某精细化工有限公司提供的系列防晒剂进行防晒效果观察。结果表明:在以新西兰家兔为受试对象的实验中发现,液体型2#防晒剂的SPF值与进口产品较接近,均属中等保护范围;泡沫型和液体型1#的SPF值较低,属最小保护范围。对志愿受试者进行观察后见除泡沫型1#的SPF值较小,属最小保护范围外,其它各受试产品均属最大保护范围,SPF值分布范围为8.28～14.8。此外,对泡沫型3#进行耐水性能的实验结果显示,该产品泡水前后的SPF值较接近且同属最大保护范围,据此认为其耐水性能良好。
In this paper, the United States SPF value (SPF) method of Zhongshan, Guangdong Fine Chemical Co., Ltd. to provide a series of sunscreens to observe the effect. The results showed that in the experiments of New Zealand rabbits, it was found that the SPF value of liquid type 2 # sunscreen was close to that of the imported products, belonging to the medium protection range. The SPF values of foam type and liquid type 1 # were lower , Is a minimum protection. After observing the volunteer subjects, except the foam type 1 #, the SPF value is small, which belongs to the minimum protection range. The other tested products belong to the maximum protection range, and the SPF value distribution ranges from 8.28 to 14.8. In addition, the experimental results on the water resistance of the foam type 3 # show that the SPF values of the product before and after the soaking water are close to each other and both belong to the maximum protection range, so that the water resistance is good.