鞋内底足迹显现效果的影响因素

目的探究鞋内底足迹的显出情况及可能影响显现效果的因素,寻找有效的鞋内底足迹显现方法。方法收集PU材质的皮鞋鞋垫、EVA材质的运动鞋鞋垫、解放牌胶鞋鞋垫共144只,用多波段光源法、茚二酮法、茚三酮法三种方法分别对穿用时间为一周、一个月、三个月、六个月的鞋内底足迹进行显现,按照显现方法、材质、穿用时间进行分类讨论并对数据进行统计和分析。结果采用多波段光源法、茚二酮法、茚三酮法分别成功显出15、14、19例,有效显出率分别为31.25%、29.17%、39.58%,PU材质、EVA材质、解放牌胶鞋三种材质分别成功显出15、23、10例,有效显出率分别为31.25%、47.92%、20.83%,穿用时间为一周、一个月、三个月、六个月的检材分别成功显出3、6、13、26例,有效显出率分别为8.33%、16.67%、36.11%、72.22%。多波段光源法、茚二酮法、茚三酮法对鞋内底足迹显出率的影响,其差异无明显统计学意义;EVA材质运动鞋鞋内底足迹显出率高于PU材质皮鞋鞋内底足迹显出率,高于解放牌胶鞋鞋内底足迹显出率,并且差异具有统计学意义;穿用时间长的检材显出率高于穿用时间短的检材并且差异具有统计学意义。结论鞋内底足迹的显现效果与鞋内底材质、穿用时间因素有关,多波段光源法、茚二酮法、茚三酮法均能对鞋内底足迹有效显出。

Infl uential Factors on Developing Insole Footprint

Objective To analyze the effect of developing insole footprint and the potentially infl uential factors so as to find an effective method to develop insole footprint.Methods 144 insoles(products of three kinds of stuff:the PU-material one trampled with leather shoes,the EVA-material one trodden with sports shoes,and the one worn with Jiefang rubber shoes)were collected after they were respectively put under feet for a week,one month,three and/or six months.All the insoles were individually examined with multiband light source,indandione and ninhydrin to reveal whether footprint was appeared in the insole examined.The footprints were rated of their developing effect according to the chosen method,the material,wearing time and development,resulting in their classified results being discussed and the obtained data being undertaken of statistics.Results There were respective 15,14 and 19 footprints developed on insoles with the corresponding disposal of multiband light source,indandione and ninhydrin,showing their each effective developing rate of 31.25%,29.17%and 39.58%.The insoles made from PU,EVA and ones for Jiefang rubber shoes successfully had the respective 15,23 and 10 footprints developed,leaving the effective developing rates of 31.25%,47.92%and 20.83%.Time-different wearing durations of one week,one month,three and/or six months caused the respective 3,6,13 and 26 footprints developed successfully demonstrating their effective developing rates of 8.33%,16.67%,36.11%and 72.22%.There was no significant difference to develop footprint on insole among the disposals of multiband light source,indandione and ninhydrin.EVA-material insoles were of highest footprint developing rate,with the PU kind and the insoles for Jiefang rubber shoes being at the second and third places,having brought forth a statistical significance among them.Longer wearing time was of statistical significance in footprint developing rate against the short time.Conclusion The developing effect of footprint on insole is related to the material of insole and wearing time.Three developing approaches of multiband light source,indandione and ninhydrin are all able to develop insole footprint effectively.