MDO vacuum technology

film tuning

Expand your possibilities with monoaxial film orientation lines
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MDO
Film orientation lines
Film orientation lines
MDO
Film orientation lines
Film orientation lines

Film orientation lines

MDO (Machine Direction Orientation)

  • 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

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!

     

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

New: 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

vacuum roll

MDO process

Principle of operation
MDO process rollers



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
MDO Film orientation lines
Full PE film

Full PE applications

The MDO is a crucial component for the production of high-performance monomaterial compounds made of polyethylenes.

Monomaterial solutions
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Brochure MDO
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HOSOKAWA ALPINE Group • Augsburg • Germany