About BOPP cigarette film and drug packaging film
About BOPP cigarette film and drug packaging film一、BOPP cigarette coatingAs a transparent plastic film for cigarette outer surface packaging, the cigarette industry has used a variety of materials, including cellophane, PVC coating film, PVDC coating...
Description of corona value x
Explanatory letterSubject: About corona value Column itemcontentDefinition of wetting tensionIt refers to that when the plastic surface is just completely wetted by the liquid (that is, the contact angle is equal to zero), the surface tension of the ...
On the corona value test of film surface
On the corona value test of film surfaceContact letterSubject: Corona value of film surface1、 Definition of wetting tension (Corona value)It refers to that when the plastic surface is just completely wetted by the liquid (that is, the contact angle i...
Concept and function of film covering and troubleshooting
Concept and function of film covering and troubleshooting一、 Concept and function of film covering1. The concept of lamination lamination, which can also be called plastic lamination, glue mounting and film pasting, is a post press processing process ...
Solutions to common faults in the use of UV varnish
Solutions to common faults in the use of UV varnishQi ChengFault phenomenon: unstable glazing effectMain reasons and solutions: This is a big headache for many flexo printing enterprises. In the process of flexographic printing, in order to keep the ...
Current situation and trend of plastic film industry in China
Current situation and trend of plastic film industry in ChinaThe output of plastic film in China accounts for about 20% of the total output of plastic products, and it is one of the categories with rapid output growth in plastic products. With the in...