印刷纸张有静电,怎么处理

2025-02-28 19:07:55
推荐回答(5个)
回答1:

1.静电消除器法
用静电消除器产生的离子去中和带电体上的电荷,以达到消除静电的目的。静电消除器有三种类型:一是外施电压式静电消除器,给针状或细线状电极外施加高电压,发生电晕放电产生离子,一般印刷机上用的qp-40d静电消除器就属此类;二是自放电式静电消除器,把导电纤维、导电橡皮或导电金属材料等做成针状或细线状电极并很好地接地,利用带电体本身的电场产生电晕放电生成离子,中和带电体上的电荷,速度很慢;三是放射性元素除静电器,利用放射性同位素的电离作用即电离空气生成离子,中和带电体上的静电,成本高对人体有辐射。
2.库存法
纸张进入印刷厂入库后,存放时间应适当长一些,存放地点能与印刷车间连通更好,以温度在18~25℃、相对湿度在60%~70%为最佳。使印刷车间的温度、湿度与纸库一致,有利于改变纸张含水量。纸张含水量的改变就是一个释放静电的过程。
3.晾纸法(加湿法)
主要是用调整主湿度的方法来消除静电。当车间里的相对湿度小于50%时,印刷或制版过程中容易产生很高的静电,增加车间的相对湿度和纸张的含水量,特别是在晾纸时增加室内相对湿度对消除静电很有效。可用调湿设备增加室内相对湿度,没有调湿设备时可在地面洒上足够的水。调湿设备主要是加湿器,可在车间的天花板或墙壁上安装离心式自动加湿器。当室内相对湿度没有达到要求时,加湿器就能自动喷出雾状水汽,增加室内相对湿度,待室内相对湿度达到要求后,自动停止喷雾。
4.抗静电剂法
抗静电剂又叫静电消除剂或除电剂。其原理是给予纸、薄膜等带电体表面吸湿性离子,使其具有亲水性,吸收空气中的水分,减小电阻,增加导电性,使静电荷不容易积蓄。抗静电剂主要是表面活性剂,有亲水基和疏水基,或叫极性基和非极性基。亲水基对水等极性较大的物质亲和性强,疏水基对于油类等极性较小的物体亲和性强。抗静电剂在印刷中应用很广泛,如用抗静电剂制作防止静电的软质胶辊等。
5.工艺操作法
在印刷过程中可以在收纸部分加上潮湿的毛巾,将蘸水的毛巾固定在拉杆上,使纸张经过与潮湿的毛巾接触而消除静电,这是消除静电临时但有效的办法,缺点是要经常打湿毛巾。

回答2:

加湿,多往地上洒点水
或者将纸张放置12小时以上
有静电是不爱走纸还是爱粘脏,如果是后者实在不行就要纸厂换纸,再不行,减少墨量

回答3:

二楼正解 有离子风枪去静电的 或者提高环境湿度,减轻纸张摩擦 。

回答4:

增加厂房的空气湿度。50%---70%左右!用离子风机吹这点,静电过高的话,就用离子风枪!天津实力

回答5:

  印刷纸张有静电的处理方法:
  1、可以从印刷纸张的含水量上来进行控制;
  2、也可以采用在印刷车间安装空调的方法,其印刷车间的湿度应该在百分之五十度左右;
  3、在印刷车间里安装防静电的装备也是可以的,比如说静电吹风,静电棒等可以有效的削弱印刷纸张表面的静电,而安装加湿设备则可以提高印刷产品的时候车间空气导电率,从而有效的防止印刷纸张被聚集。

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