Today we can’t imagine our life without electricity and technology, transport and television. In the information age, computers, the Internet, cell phones, and smartphones are helpers for everyday needs. However, our environment and comfortable living in it can be detrimental to our health. It is hard to realize the fact that such a global technical breakthrough has hit human health. Exposure to electromagnetic radiation could lead to changes in the structure of nerve cells and blood formulas, deformation of the circulatory system, pathology of the endocrine system, decreased immunity, and so on. Nowadays the development of innovative textiles with electromagnetic radiation shielding is a relevant topic that promotes the creation of a flexible protective screen for the human being and various electronic devices. Textiles themselves do not protect against electromagnetic radiation; however, the textiles can be successfully converted into protective material after changing the raw material composition, creating a new production process, or adapting technologies that can make them electrically conductive. Basic methods of textile producing such as weaving, knitting, non-weaving, or their combination can be used to make electromagnetic shielding fabric. In this study, the knitting on 8-gauge flat-bed machine has been chosen as main technology. The metal wire (stainless steel: 0.12 mm) is used separately or together with 10 × 2 tex cotton yarn. Two sets of samples with different interloopings are produced which differ by steel percentages and positioning in the structures. Electromagnetic shielding effectiveness of textile samples (dB) was measured according to ASTM 4935-10 on frequency range 30 MHz–1.5 GHz. It is concluded that the positioning of the metal components in the knitted structure is the main factor determining the shielding ability. The half Milano rib knitted structure demonstrates the highest shielding efficiency.

中文翻译：

---

用于电磁辐射屏蔽的混合针织物

今天，我们无法想象没有电力和技术、交通和电视的生活。在信息时代，计算机、互联网、手机和智能手机是满足日常需求的帮手。然而，我们所处的环境和舒适的生活可能对我们的健康有害。很难意识到这样一个全球性的技术突破已经对人类健康造成了伤害。暴露于电磁辐射会导致神经细胞结构和血型发生变化、循环系统变形、内分泌系统病变、免疫力下降等。如今，开发具有电磁辐射屏蔽功能的创新纺织品是一个相关话题，促进了为人类和各种电子设备创建柔性保护屏。纺织品本身不能抵御电磁辐射；然而，在改变原材料成分、创造新的生产工艺或采用可使其导电的技术后，纺织品可以成功地转化为保护材料。纺织、针织、无纺或它们的组合等纺织生产的基本方法都可以用来制造电磁屏蔽织物。在本研究中，已选择在 8 针距平床机上编织作为主要技术。金属丝（不锈钢：0.12mm）单独使用或与10×2 tex棉纱一起使用。生产了两组具有不同环回的样品，它们的钢百分比和结构中的位置不同。根据 ASTM 4935-10 在 30 MHz–1.5 GHz 频率范围内测量纺织品样品的电磁屏蔽效率 (dB)。得出结论，金属部件在针织结构中的位置是决定屏蔽能力的主要因素。半米兰罗纹针织结构表现出最高的屏蔽效率。