Lines for the production of Bi-oriented tubular films for sausage casings

Special features:

• Structures: 3 / 5 / 7 up to 9 layers
• Raw materials: PE, PP, PS, PET, PA, MXD6, EVOH, PVOH, COC, EVA, EMA, Ionomer and others
• Film thickness: 20 μ up to 80 μ
• Film width: 30 mm up to 350 mm double flat
• Capacity: 20 kg/h up to 150 kg/h
• Production speed: 50 m/min up to 300 m/min

Film characteristics:

• Adjustable shrink values from a minimum of 0-2% up to a maximum of 40% depending on raw materials
• Excellent oxygen- and moisture barrier
• Extremely high puncture resistance
• Excellent optical properties like transparency and brightness

Applications:

• Sausage casings

Our Triple Bubble® technology will produce extremely high barrier, bi-axially oriented multilayer films in a single pass, without additional processes like coating or laminating. The bi-orientation imparted on the film increases its oxygen and water vapour barrier significantly, without any negative effect on the final product.

The first production step is the extrusion of a first bubble, with up to 17 layers, followed immediately by water quenching. Subsequently, in a second bubble, the film of the primary tube is heated in a hot water bath or by infrared heaters and stretched in both machine and transverse direction. These are the prerequisites for the optimum biaxial drawing of the film.

After further cooling, the film is heat set in a third bubble. This step defines both the film’s shrink values as well as other properties accordingly.

Compared to air cooled blown film lines, our water quenched Cool Bubble® lines extrude from the top down. The shock-like water quenching of the melt produces a film with an amorphous polymer structure, which imparts desirable properties such as elasticity, clarity, thermoformability, puncture and tear resistance. Applications for theses films are found, among others,

• in medical packaging (for example IV and blood bags)
• in food packaging (for example, vacuum bags, thermoforming bottom webs for meat and cheese packaging)

The heart of our Cool Bubble® lines is the vacuum-assisted water quenching chamber, which aggressively extracts the heat from the melt while supporting the bubble during the heat removal process.

We are among the pioneers of water quenched blown film lines. Our years of experience in this field allow us to offer systems with up to 13 or 17 layers.

From technical assistance on complete mechanical engineering solutions to installation and maintenance, with us you obtain everything from one source.
 

lines for the production of bi-oriented tubular films for shrink bags or high barrier packaging

Special features:

• Structures: 3 / 5 / 7 / 9 / 11/ up to 13 layers
• Raw materials: PE, PP, PS, PET, PA, EVOH, PVOH, COC, EVA, EMA, Ionomer and others.
• Film thickness: 20 μ up to 150 μ
• Film width: 100 mm up to 900 mm double flat
• Capacity: 50 kg/h up to 250 kg/h
• Production speed: 30 m/min up to 100 m/min

Film characteristics:

• Adjustable shrink values from a minimum of 0-2% up to a maximum of 70% depending on raw materials
• Extremely high puncture resistance
• Excellent oxygen and moisture barrier
• Good sealability

Applications:

• Shrink bags or films for meat and cheese packaging
• High barrier films with or without shrinkage for food packaging, for example lidding films, flow-packs and pouches.
• Technical films