Abstract: Fiber sheets can be classified into three main categories based on their production processes and structures: woven fabrics, non-woven fabrics and paper. Due to their characteristics of softness and lightness, coupled with fast production speeds, high output, low costs, and a wide range of raw material sources, they have found widespread applications in textile and apparel, medical and hygiene, industrial production, and daily life. 
To meet the needs of automated equipment, scholars at home and abroad have developed various separation methods, including air-flow adsorption separation, friction separation, electrostatic separation, air-flow induction separation, needle-punch suction cup separation, and robotic grasping separation. Among these, needle-punch suction cup grasping separation, robotic grasping separation, air-flow adsorption separation, and electrostatic adsorption separation are more widely used in the single-sheet separation of woven fabrics. When robotic grasping and needle-punch suction cup methods are used for separation, the reliability is relatively high, but the structure of the fiber sheet can be easily damaged, making it impossible to guarantee a damage-free separation. Air-flow adsorption separation does not directly contact the material during the separation process, which helps avoid contamination and damage. However, in separating thin, soft, and easily deformable fiber sheets, it tends to absorb multiple sheets at once, affecting its accuracy and reliability. Electrostatic separation has advantages such as high efficiency, energy-saving, and environmental friendliness, but it requires specific environmental conditions and is difficult to achieve a damage-free and stable separation effect. Friction separation and air-flow induction separation are mainly used for single-sheet separation of paper products. Friction separation has a simple structure and high reliability but consumes more energy and has limited applicability. For single-sheet separation of non-woven fabric in stacked conditions, manual operation is still required, and there is currently a lack of precise, efficient, and damage-free automated separation technology.
Given the current issues in the single-sheet separation process of fiber sheets, such as structural damage, low separation accuracy and reliability, and insufficient separation efficiency, to achieve efficient and precise single-sheet separation of stacked fiber sheets, it is imperative to develop separation devices that are efficient, economical, and highly reliable in the future, so as to facilitate efficient integration with robotic arms. Continuous optimization of the separation mechanism is required to enhance the success rate and precision of single-sheet separation of fiber sheets. Additionally, the development of separation mechanisms with a broader range of applications is required, not only suitable for non-woven fabrics but also for other flexible sheets. In the future, based on the realization of automated separation of fiber sheets, artificial intelligence technologies such as image recognition and machine vision should be integrated to replace humans in executing specific tasks in a more efficient and precise manner. This will optimize the use of human resources, allowing them to be more focused on high-value activities such as innovation, decision-making, and complex problem-solving.

Key words: fiber sheets, single-sheet separation, technical characteristics, applicability, research progress, development trend

摘要： 柔软纤维薄片的单张分离是实现自动抓取和转移并进行自动化生产的关键。纤维薄片因柔软、轻薄和透气性导致其难以被精准分离，而成为目前研究的热点。为深入了解柔软纤维薄片精准分离技术的研究进展，对国内外织造布、无纺布和纸张的单张分离技术，尤其对不同分离方式的技术特征和适用性进行了综述研究。研究发现，相较于纸张和织造布的单张分离技术的快速发展，基于无纺布类纤维薄片分离技术的研究尚处于起步阶段，随着无纺布类纤维薄片在自动化制造中的应用日益增多，针对无纺布类纤维薄片的单张分离将成为未来研究的重点，并指出把现有纤维薄片分离方法与机器视觉和人工智能技术融合，将是未来纤维薄片实现高效、精准分离的发展趋势。

关键词: 纤维薄片, 单张分离, 技术特征, 适用性, 研究进展, 发展趋势