ABSTRACT

Results of a novel method of testing natural, tanned hides, in particular full grains, for both internal and external structural defects are presented. Such defects may occur while the animal is still alive or during the hide tanning and finishing processes. The method, still under development, uses a specially designed lamp to produce a thermal excitation impulse and an infrared camera to measure the surface temperature distribution. A newly developed algorithm is employed to process a series of thermograms recorded while the natural leather surface is heated and cooled in turn. Presented are selected results of experimental investigations carried out both on a specially prepared sample and other specimens of natural leathers. The Matlab environment was used to carry out numerical calculations. The solution discussed here represents a part of the project aimed at developing an industrial device for detecting structural flaws of leathers used for luxury upholstered furniture.

摘要

提出了一种测试天然，鞣制皮革（尤其是全谷物）的内部和外部结构缺陷的新方法的结果。当动物还活着时或在皮革鞣制和精加工过程中，可能会发生此类缺陷。该方法仍在开发中，它使用专门设计的灯产生热激发脉冲，并使用红外热像仪测量表面温度分布。采用新开发的算法来处理一系列记录的热分析图，同时依次加热和冷却天然皮革​​表面。呈现的是对特殊制备的样品和其他天然皮革样品进行的实验研究的选定结果。使用Matlab环境进行数值计算。