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印刷喷粉时为什么会出现雪花现象?
作者:admin 来源:http://www.sdhzyw.com 发布时间:2016-2-16 16:03:43 浏览次数:397
在胶印生产中,喷粉可以防止印刷品蹭脏,因此是不少印刷企业生产过程中的必备辅材,但不得不注意的是,喷粉过量容易造成雪花现象,给后续覆膜和上光带来很大不便,不仅需要增加擦拭印刷品的工序,而且若对印刷品擦拭过猛或次数过多,还会导致印刷品光泽度下降,甚至会划伤印刷图文。
In offset printing production, the powder can prevent the print ceng dirty, so it is a printing enterprise necessary auxiliary materials in the process of production, but have to note that the powder too much cause snowflakes phenomenon, brings to the subsequent laminating and glazing great inconvenience, not only need to increase the wipe the printing process, and if the print is wiped too hard or too many, also to cause a decline in print gloss, even will scratch the printing graphic.
因此,如何在喷粉时更大限度地避免雪花现象,值得印刷企业注意。以下,我们给出自己对此问题的认识,以求抛砖引玉,共同探讨。
Therefore, how to snow is minimized when powder phenomenon, worth printing enterprise pay attention to. The following, we give our awareness of the problem, in order to topic and discuss.
一些喷粉产品在使用前需要进行一些简单处理,若印刷企业忽略了这一步,可能会使部分凝固的喷粉块状颗粒堵塞喷粉头,造成局部颗粒过多,从而产生雪花现象。
Some powder products need to do some simple processing before use, if printing companies ignore this step, it may make solidified powder spraying, powder spraying massive particle plugging caused local particles is overmuch, producing snow.
如玉米淀粉制造的喷粉产品HDP喷粉,其产品采用奶嘴式包装,以保证重复使用时有效隔绝空气,使喷粉不受潮,但这也使得印刷企业在使用前,必须用手拍打包装袋5次,并上下颠倒和抖动包装袋7~8次按需印刷,使喷粉具有更好的流动性,才能有效避免上述问题。
Such as corn starch manufacturing HDP spray powder products, its products using the pacifier type packaging, to ensure that the effective isolation from the air, when the reuse powder does not be affected with damp be affected with damp, but it also makes the printing enterprise before use, must use hand flap bags 5 times, upside down and shake them up and down 7 ~ 8 times on-demand printing packaging, make powder has better liquidity, in order to avoid the above problems effectively.
若选用的喷粉型号与印刷品特性不匹配,会造成印刷品上的喷粉量过大或过小,导致雪花或蹭脏现象。
If choose powder type and print features do not match, will cause the powder on the print quantity is too big or too small, result in snow or smearing phenomenon.
若印刷机上的喷粉头没有清洗干净或受损,也会造成印刷品上的喷粉量局部过大或过小的现象。
If the powder on the printer head didn't clean or is damaged, can also cause prints of the amount of powder phenomenon of local is too big or too small.
印刷企业若选用劣质喷粉产品,如颗粒大小不均匀,流动性差的喷粉产品,印刷时也容易造成雪花现象。
If printing enterprise choose inferior powder products, such as particle size is not uniform, illiquid powder products, snow caused easily when printing.
喷粉雪花现象的解决方案
The phenomenon of powder snow solution
针对上述喷粉时出现雪花现象的可能成因,济南宣传单页印刷厂家建议,印刷企业在使用喷粉时投资采购,一定要注意以下几个方面。
For may be the cause of the phenomenon occurs when the powder snow, jinan page flyer printing factory advice, when printing enterprise in the use of powder spraying investment purchase, it is important to note the following respects.
印刷机的喷粉头一定要定期清洗并检查,一旦发现其有损伤,应及时通知设备供应商进行维修或更换。
Press powder spraying head must be clean and check regularly, once found the damage, should timely notify the equipment supplier for repair or replacement.
印刷企业应选用优质喷粉产品,在此济南宣传单页印刷厂家建议选用玉米淀粉制造的喷粉产品,效果较好。
Printing enterprise should choose powder with high quality products, in the jinan page flyer printing factory suggest choose made in corn starch powder products, the effect is better.