Lubrication for plastic surfaces:
- Anti-Cohesive, creating block
- Support the machining process
- Increased smoothness, gloss, transparency and durability
- The cohesive energy between two film surface in film rolls makes them tightly together, it is difficult to separate them from each other. The happens due to: affinity for each other, opposite charge, due to vacuum ...
This phenomenon causes many difficulties in the production process:
- It makes it difficult to put the material inside the bag, sometimes causing loss due to spillage ...
- Difficult to open the packaging bags mouth, causing time consuming
- The anti-clumping agent makes the surface of the membrane slightly rough, so that air can easily interfere with the membranes that helps reduce the vacuum effect. In some special cases, the antistatic component is added, thanks to the entering of air, the steam will together and block the charge on the membrane surface. Thereby eliminating the clumping phenomenon that has elements due to charge.
- The composition of the anti-cohesive could be be either inorganic or organic
- Inorganic: CaCO3, Silica, Talc,... Depending on the thickness of the membrane, different inorganic particles are required.
- Organic: Erucamide, Oleamides, GMS, zinc stearate, Teflon, ...
