News

Information

News

Follow up information, focus on news, and pay close attention to company news and industry trends in real time

Company News

Industry information

Home page

What problems will appear in the printing ink of self-adhesive labels?

2022/10/30

In the process of sticker printing, the ink often dries poorly or too fast, which not only reduces the printing quality, but also affects the production efficiency. If you want to deal with these problems, you need to find out the reasons before you can find solutions.
In the process of sticker printing, the ink often dries poorly or too fast, which not only reduces the printing quality, but also affects the production efficiency. If you want to deal with these problems, you need to find out the reasons before you can find solutions. Let's take a look at these printing knowledge points.
Ink layer is too thick
In the process of large-area field printing, due to too much ink and too thick ink layer, the ink layer on the surface of the printed matter will be completely dry while the bottom layer is not completely dry during the drying process, which is called pseudo drying. It is easy to cause the ink layer on the surface of printed matter to fall off in the post process processing. This is because the combination fastness of the poorly dried ink bottom layer and the substrate surface is poor, which makes the ink layer scrape and fall off under the effect of friction.
Insufficient UV lamp power
The insufficient power of UV lamp is also one of the reasons for the poor drying of UV ink, which is related to the daily production operation of the enterprise, mainly in the following aspects.
Ink out of shelf life or excessive additives
In general, if the ink shelf life is exceeded, the ink may not dry properly due to the failure of photoinitiator in the ink after printing. In addition, in printing production, in order to improve the performance of the ink, it is often necessary to add additives such as ink adjusting oil and viscosity remover into the ink.
Rubber roller density is too low
In the actual production, the new equipment is more prone to bad ink drying failure. After careful inspection, it was found that the low density cots absorbed the photoinitiator in the UV ink, which led to poor ink drying.

Self-adhesive label,Label printing

What should be considered when printing product labels?

RRelated news

The Characteristics of Sticker Printing

The particularity of sticker printing. The narrow width flexographic printing equipment has outstanding characteristics compared with embossing and other types of flexographic printing equipment. The narrow width flexographic printing equipment is not only simple to operate, but also has high quality and efficiency of sticker printing

Type of ink for label printing

There are many kinds of label printing ink, which can be divided into three categories according to the different solvents used - water-based label printing ink, solvent based label printing ink and UV label printing ink

What are the characteristics and advantages of label printing

Easy to identify: anti-counterfeiting is mainly for consumers to see, so that consumers can correctly identify the authenticity of products. Therefore, the simpler the method, the better. The commonly used security label is QR code security label

Address: Building 54, Zone E, Longgang New Town Entrepreneurship Park, Longgang, Zhejiang
TEl：0577-68678995
FAX：0577-68678955
EMAIL：ireant@sina.com