Smart Bubble

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Lines for the production of air-cooled blown films

HDPE Films Polyolefine Non-Barrier Films Barrier Films Die-Head Concept

HDPE Films

Line layout

number of layers: 1 or 3
raw materials: HDPE pure or with blends (also biopolymers)
film thickness: 6 μ – 80 μ
film width: 1.000 mm – 3.000 mm double layflat
output: up to 600 kg/h
line speed: up to 300 m/min

Film characteristics

superior thickness tolerances
outstanding flatness
excellent mechanical properties
temperature resistant
tear resistant
grease proof
fully recyclable

B l o w i n g t h e s h a p e

Applications

Added values

over 40 years of know-how in HDPE blown film lines
state-of-the-art machine concept installed at leading HDPE film manufacturers
reliable and flexible machine layout
reliable production of 6 μ thin film in continuous operation
continuous production rate of up to 300 m/min
optimal synergy between extruder screw, die, cooling ring and winder
high degree of PCR can be processed (up to 100%)
common bio polymers can be processed
high degree of line automation on demand

Application areas

bags / sacks / hoods
paper match film
coating and laminating film for food or non-food applications
liners
covering film
flow pack films
labels / sleeves
wrapper film / sheets

Polyolefine Non-Barrier Films

Line layout

number of layers: 3 / 5
raw materials: PE, PP, EVA, biopolymers, blends, and others
film thickness: 10 μ – 250 μ
film width: 1.000 mm – 3.000 mm double layflat
output: up to 1.000 kg/h
line speed: up to 200 m/min

Film characteristics

superior thickness tolerances
outstanding flatness
excellent mechanical properties (e.g. strength and balanced shrink)
adjustable film surface (e.g. sticky, smooth, glossy)

B l o w i n g t h e s h a p e

Applications

Added values

reliable and flexible machine layout
wide range of film thicknesses
wide range of blow-up ratios
long neck / short neck production mode
high degree of line automation on demand
turnkey solutions for many applications

Application areas

bags and sacks
industrial and transportation packaging (e.g. HDSS)
agricultural films
lamination film
shrink and stretch hoods
paper match film
liners
flow pack films / frozen food packaging
protection film
collation shrink films

Barrier Films

Line layout

number of layers: 7 / 9 / 11 / 13
raw materials: PE, PP, PS, PET, PA, EVOH, EVA, Ionomer, biopolymers and others
film thickness: 20 μ – 250 μ
film width: 1.000 mm – 3.000 mm double layflat
output: up to 800 kg/h
line speed: up to 200 m/min

Film characteristics

superior thickness tolerances
outstanding flatness
wide range of raw material selection
medium to highest barrier properties
sealing properties (e.g. easy peel, re-closable seals)
adjustable anti-fog properties

B l o w i n g t h e s h a p e

Applications

Added values

most advanced die head design using the synergies with Triple Bubble® technology
reliable and flexible machine layout
wide range of film thicknesses
outstanding gauge tolerances
high degree of line automation on demand
turnkey solutions for many applications

Application areas

vacuum skin packaging (VSP) films
vacuum packaging films
thermoforming films
high barrier lamination films
lidding films (easy peel, seal films)
specialty films

Kuhne Anlagenbau GmbH

Kuhne Anlagenbau designs and manufactures blown film dies optimized for every application. For top quality and reliable supply, the dies are manufactured in-house in a state-of-the-art facility that guarantees the tightest design tolerances.

ReCon

HyCon^®

MoCon^®

Smart Bubble® HDPE

For mono and three-layer dies, we use our ReCon (regular concept) spiral mandrel die, which is well proven and ideal for high pressures, as in HPDE film production. This design, in conjunction with our precise manufacturing technology, delivers tight thickness tolerances for very thin films.

Smart Bubble® non barrier films

Standard three and five-layer systems are usually also equipped with ReCon (regular concept) spiral mandrel dies unless the customer is considering a later expansion for additional layers. In this case, a MoCon® (modular concept) stackable plate die is recommended. This Kuhne concept offers maximum flexibility combined with a solid system design.

Smart Bubble® barrier films

For 7- to 13-layer systems, our customers benefit from synergies, developed over many years, between our conventional blown film technology and the highly sophisticated systems of our Triple Bubble® technology.Seven and nine-layer systems are often equipped with HyCon® (hybrid concept) dies, consisting of a core of spiral mandrels with the outer layers applied via stackable plates positioned just before the die exit.

These layers can be heated independently of the temperatures of the rest of the blown film die, which is a very important feature for PA or PET outer layers.

The MoCon® (modular concept) stackable plate die is ideal for film structures with up to 13 layers (17 layers are possible) since this design will provide a shorter flow path and an optimal residence time. This concept offers maximum flexibility so that new market requirements, such as films designed for recyclability, can be fulfilled quickly and without additional costs.