MDO (Machine Direction Orientation)
Film orientation lines
Produce blocked and double flat film on Hosokawa Alpine blown film lines and benefit from maximum flexibility for your production.
Our experts will be happy to advise you — contact us!
- With over 25 years of experience in monoaxial stretching, we are the pioneers in MDO technology
- The one-of-a-kind TRIO technology “Trim Reduction for Inline Orientation” provides significant material savings in edge trimming
- Superior MDO film quality with outstanding processability, optimized flatness and no hanging edges thanks to our new vacuum technology
Improve film properties & save material costs
Monoaxial film orientation lines allow the improvement of selected film properties to suit specific application.
Optical properties
Haze and clarity
Stiffness
Machinability
Barrier properties
Shrink properties
Save material costs in the production of packaging films.
- Reduced thickness
- Reduced material requirement
- With properties similar to non-oriented film
MDO vacuum technology
Optimized flatness for excellent processability
- Neck-in reduction by up to 70%
- Significantly improved flatness
- Perfectly prepared for lamination or printing
- Outstanding roll quality
MDO process
Principle of operation
The MDO film orientation process is divided into four phases: heating, stretching, annealing and cooling. Depending on the application, the MDO is based on an 8, 10 or 12 roller concept.
1. Heating phase (2 or 4 rollers)
The film is conveyed on heated rollers to obtain the required temperature.
2. Stretching phase (2 rollers)
The heated film is stretched between two rollers to obtain the required stretching ratio.
3. Annealing phase (2 or 4 rollers)
Annealing rolls reduce the stresses created during the orientation process.
4. Cooling phase (2 or 4 rollers)
The film cools down and compensates for thermal shrinkage.
Technical details
|
Available layflats |
1,600 / 2,000 / 2,600 / 3,000 mm |
|---|---|
|
Film speed inlet |
up to 130 m/min |
|
Film speed outlet |
300 m/min |
|
Stepless orientation ratio |
up to 1:10 |
|
Individual heating of the rollers with water tempering unit |
easy handling, safety, better heat transfer max. processing temperature 130°C |
|
Individual heating of the rollers with oil tempering unit |
when higher temperatures are required max. processing temperature 150°C |
