Printing color difference of packaging film products caused by poor lubrication
If the lithography process is not suitable to run the plate, it is also prone to color difference. In addition, if the water roll sleeve aging or adsorption ink, impurities, will affect the water roller water absorption and the uniform transmission of fountain solution. Moreover, if the water bucket device leakage phenomenon, it will also affect the uniform transmission of moisture in the printing plate. The existence of these undesirable conditions will destroy the uniform and stable transfer of printing ink, and make the ink color difference.
Packaging material knowledge: why is the rapid growth of food cooking packaging bags in recent years?
In today's market, there is a kind of "cooking packaging bag". Maybe you don't know what is the packaging roll film cooking packaging bag. In fact, it is a kind of food packaging bag that can pack high-temperature cooked food. It is also a kind of vacuum packaging bag. So, why is the rapid growth of food cooking packaging bag in recent years? The main reasons are as follows:
① Compared with vacuum cooking bag packaging products, its contents are not easy to collapse.
② The packaging container can be directly used as tableware.
③ In order to prevent the leakage of liquid during opening, the filling rate of the contents is generally controlled at about 80%. http://www.ycritai.cn/
Dongguan Beite packaging materials Co., Ltd
Dongguan special bag, plastic bag, plastic bag, plastic bag