海报印刷是在物体表面上进行的，静电现象也主要表现在物体表面。印刷过程中由于不同物质间摩擦、撞击及接触，使参与印刷的所有物质都产生静电。下面济南印刷厂家来讲讲海报印刷中静电产生的危害以及方法。

Poster printing is carried out on the surface of the object, and electrostatic phenomenon is also mainly manifested on the surface of the object. During the printing process, all substances involved in printing will generate static electricity due to friction, impact and contact between different substances. Next, Jinan printing factory will talk about the hazards of static electricity in poster printing and the removal methods.

海报印刷中静电产生的危害

Hazards of static electricity in poster printing

1.影响产品印刷质量

1. Impact on product printing quality

承印物表面带电，如纸张、聚乙烯、聚丙烯、玻璃纸等，会吸附纸屑或漂浮在空气中的灰尘、杂质等，影响油墨转移，使印刷品发花等，造成印刷品质量下降。其次如油墨带电荷，在移动中放电，在印刷品上会出现“静电墨斑”，在层次薄版印刷中常出现这种情况。在实地印刷中，如带电油墨在印刷品边缘上放电，很容易在边缘出现“墨须”。

The surface of the substrate is electrified, such as paper, polyethylene, polypropylene, cellophane, etc., which will absorb paper scraps or dust and impurities floating in the air, affect the ink transfer, make the printed matter blossoming, etc., and cause the quality of the printed matter to decline. Secondly, if the ink is charged and discharged during movement, "electrostatic ink spots" will appear on the printed matter, which often occurs in the layered lithography. In field printing, if the charged ink discharges on the edge of the printed matter, it is easy to have "ink whiskers" on the edge.

2.影响生产

2. Impact on safety production

在印刷过程中由于高速摩擦，剥离会产生静电，当静电积累到很容易导致空气放电，造成电击或起火。电压很高时，带电的油墨会引起油墨、溶剂着火，直接威胁操作人员的。

During the printing process, due to high-speed friction, peeling will generate static electricity. When the static electricity accumulates, it is easy to cause air discharge, resulting in electric shock or fire. When the voltage is very high, the charged ink will cause the ink and solvent to catch fire, directly threatening the safety of operators.

海报印刷中静电产生的方法

Methods of removing static electricity in poster printing

1.化学法

1. Chemical elimination method

在承印物表面上涂一层抗静电剂，使承印物导电，成为稍微导电的绝缘体。化学的应用在实际中有很大局限，比如在印刷纸张中加入化学成分时，对纸张品质产生不良影响，如降低纸的强度、附着力、紧密度、抗拉强度等，因此化学方式不太被广泛使用。

Apply a layer of antistatic agent on the surface of the substrate to make the substrate conductive and become a slightly conductive insulator. The application of chemical elimination has great limitations in practice. For example, when adding chemical components to the printing paper, it will have adverse effects on the quality of the paper, such as reducing the strength, adhesion, compactness, tensile strength, etc. of the paper. Therefore, chemical methods are not widely used.

2.物理法

2. Physical elimination method

不改变材料性质利用静电本身特性来，是现有常用的方法。

It is a commonly used method to eliminate static electricity without changing material properties.

(1)接地法，使用金属导体将要静电的物质和大地连接，与大地等电位，但这种方式对绝缘体没有效果。

(1) The grounding elimination method uses metal conductors to connect the material that will eliminate static electricity with the earth and equipotential with the earth, but this method has no effect on insulators.

(2)湿度控制法

(2) Humidity control elimination method

印刷材料表面电阻随空气湿度增大而减小，因此增加空气的相对湿度，可以提高纸张表面的导电率。印刷车间适合的环境条件是：温度为20度左右，带电体环境湿度70%以上。

The surface resistance of printing materials decreases with the increase of air humidity, so increasing the relative humidity of the air can improve the conductivity of the paper surface. The suitable environmental conditions for the printing workshop are: the temperature is about 20 degrees, and the ambient humidity of the charged body is more than 70%.

(3)静电设备选用原则

(3) Principles for selection of electrostatic elimination equipment

印刷厂常用的静电设备有感应式、高压电晕放电式、离子流静电器和放射性同位素式几种。其中前两种便宜，安装使用方便和不存在原子辐射等优点得到广泛应用。

The electrostatic elimination equipment commonly used in printing plants include induction type, high-voltage corona discharge type, ion current electrostatic eliminator and radioisotope type. The first two are widely used for their advantages of low price, convenient installation and use, and no atomic radiation.

海报印刷中静电产生的危害以及方法相关内容就讲解到这里了，您对有怎样的想法可以随时来我们网站http://www.xinfengyinshua.cn进行咨询了解！

The harm of static electricity generated in poster printing and the relevant content of removal methods will be explained here. You can come to our website at any time for your ideas http://www.xinfengyinshua.cn Consult and understand!