Fundamental Research about the Factor such as the clothes Material which Influences a Decubitus

在影响卧位的服装材料因素中，以最主要的因素推测皮肤与服装材料之间的滑动摩擦力。本研究利用实验室的压力-摩擦模拟装置，测试了压力状态下人造皮与服装材料（棉、丝、毛织物和毛巾布）之间的滑动摩擦特性.试制皮肤模型：人造皮肤分为软质型（压缩率为12.3%）、普通型（9.7%）和硬质型（6.2%）.人造皮肤和服装材料的表面特性：摩擦系数（MIU）和几何粗糙度（SMD）由软型向硬型的增加而增大。毛巾布的MIU受绒头组织和摩擦方向的影响较大，SMD值较大。傅立叶变换通过MP-100 WS（Biopack公司）装置得到摩擦曲线和粗糙度曲线。峰值幅度（dB/V）出现在低频范围内，并且该值显示出在SMD中变化的趋势。用压力-摩擦模拟装置测定了假皮与服装材料之间的滑动摩擦特性：服装面料安装在样品底座上，（厚度为0.4cm），并且其从一侧到另一侧水平移动样品基底，并测量滑动摩擦力。使施加到摩擦板上的载荷在100 g ~ 1500 g的范围内变化。随着载荷的增加，假皮与衣料的摩擦系数有减小的趋势。这种趋势在毛巾布中很明显，但在丝绸和丝绸中也有一些。可以说，毛巾布对人造革材料滑动摩擦特性的影响在整体上大于纺织品。

It guesses the sliding frictional force between skin and clothes material at the prime factor about factors of clothes material which influences a decubitus. In this research, the sliding frictional characteristic between false skin and clothes material (cotton, silk, woolen fabric and towel cloth) in a state of pressure was examined by the pressure-friction simulator device of trial manufacture.1. The skin model of trial manufacture: False skins are the soft type (compressibility is 12.3%), the usual type (9.7%) and the hard type (6.2%).2. The surface characteristic of false skin and clothes material: The coefficient of friction (MIU) and the geometrical roughness (SMD) by the KES method grow big addording as becoming to the hard type from the soft type. In case of towel cloth, MIU is influenced considerably by pile weave and frictional direction, and SMD becomes a large value comparing with other cloth samples. Fourier transformation had frictional curves and roughness curves through the device of MP-100WS (Biopack Company). The peak magnitude (dB/V) appears in the low frequency range, and that value shows a tendency to vary in SMD.3. The sliding frictional characteristic between false skin and clothes material by the pressure-friction simulator device: The clothes material wa installed on the sample base and the false skin material (thickness is 0.4 cm) on the frictional plate, and it moved the sample base horizontally from side to side, and sliding frictional force was measured Load to the frictional plate was made to change in the range of 100g 〜 1500g. Frictional coefficient between false skin and clothes material shows a tendency to become small with the increase in load weight. This tendency remarkable in case of towel cloth, but there are a few in case of silk habutae and silk de-chine. It can be said that towel cloth influences the sliding frictional characteristic of false skin material more than textile fabrics through the whole.