- Embossing Thermal Lamination Film
- PET Thermal Lamination Film
- BOPP Thermal Lamination Film
- Metalized Thermal Lamination Film
- Lamination Steel Flim
- Holographic Thermal Lamination Film
- Glitter Thermal Lamination Film
- 3D Thermal Lamination Film
- Soft Touch Thermal Lamination Film
- Anti Scratch Thermal Lamination Film
- Degradable Organism Thermal Lamination Flim
The influencing factors of BOPP pre-coating film haze
As required physical and mechanical properties of BOPP pre-coating film is relatively important in the haze, is also one of the important indices for customers choose dumb light film.
1. Raw materials
& have spent Industrial production of BOPP film material ingredient is PP. Isotactic PP and syndiotactic PP with different crystalline structure, formed the appearance size irregular small chip. Different petrochemical manufacturers because of its production process and technology, the production of raw materials has certain difference. The greatest influence on the film the fog an indicator for the yellow index. The greater the yellow index, produced film. The greater the fog
2. Antisticking agent
& have spent Antisticking agent on membrane surface after improved the bonding resistance of film, but the turbidity and glossiness thin films are affected.
This is due to the resistance to adhesive especially inorganic kind of adhesive, and is not miscibility of polypropylene resin. Thin film in the process of stretching resistance will make a hole around a adhesive, and produce the refractive index of different interface between two materials.
& have spent Polypropylene crystal size affects the film haze. Two-way stretch can make polypropylene may produce larger crystal particles, thus reducing crystal size, improve the light transmittance, reduce haze.