E-textiles reveal a new and hybrid sector of the industry that is created by the integration of electronic components or textile-based electronics in our daily life textile products. They are facing problems in terms of washability, reliability, and user acceptance. This manuscript explains the mechanical stresses acting during the washing process and their impact on e-textile systems. Different washing programs were investigated in terms of total process duration. This washing process duration is mainly divided into three diverse washing actions: low-speed rotation, high-speed rotation, and stop time. This investigation was performed to highlight the importance of the washing actions and their percentages in the total washing process. A piece of fabric with a flexible PCB (printed circuit board), equipped with an accelerometer with a Bluetooth communication device and a microcontroller, was placed in the washing machine to analyze the movement of fabric provoked by washing stresses. The PCB was used for fabric movements recording to determine the impact of mechanical stress on e-textile systems during the washing process. From the video analysis, it was concluded that the duration of the low-speed and high-speed rotation actions should be privileged comparing to the duration of the whole washing process. A power spectral density (PSD) analysis based on the accelerometer outputs was realized. Mechanical stresses at different frequencies were identified. Based on this analysis, it could be possible to improve the protocols of mechanical tests (Martindale and pilling box) used to simulate the mechanical stress applied to e-textile systems during the washing process.

中文翻译：

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纺织品系统可靠性评估—用于调查洗涤过程中损坏程度的微型加速度计

电子纺织品揭示了该行业的一个新的和混合的领域，该领域是通过将电子组件或基于纺织品的电子产品集成到我们的日常生活纺织品中而创建的。他们在可洗性，可靠性和用户接受度方面面临问题。该手稿解释了洗涤过程中的机械应力及其对电子纺织系统的影响。根据总过程持续时间研究了不同的洗涤程序。该洗涤过程的持续时间主要分为三种不同的洗涤动作：低速旋转，高速旋转和停止时间。进行这项研究是为了突出洗涤动作的重要性及其在整个洗涤过程中的百分比。一块带有柔性PCB（印刷电路板）的织物，装有带蓝牙通讯设备的加速度计和微控制器的洗衣机被放置在洗衣机中，以分析由洗涤压力引起的织物运动。PCB用于织物运动记录，以确定在洗涤过程中机械应力对电子纺织系统的影响。从视频分析中得出的结论是，与整个洗涤过程的持续时间相比，低速和高速旋转动作的持续时间应享有特权。实现了基于加速度计输出的功率谱密度（PSD）分析。确定了不同频率下的机械应力。根据此分析，