Properties

The oriented polypropylene film is characterized by good weldability, high transparency, gloss and favourable mechanical properties, and low steam and aroma permeability. Apart from this, it possesses slipping and antiblocking properties facilitating the operation of packaging machines. By standard, it is offered as one side activated film (with the activation at the outer side of the roll). The use of outer weldable layers enables its welding below the polypropylene melting point. The selection of welding temperatures depends on the characteristics of welding electrodes and welding rate.

 

Application

 

The oriented two-side weldable polypropylene film is intended to be used as packaging material, with possible surprint and lamination.

 

Technical data

 

Requirements

Value
Nominal thickness, [mm] Admissible deviation +/- 5%

17

20

25

30

35

40
Density [g/cm3]

0,91

Tearing strength, [N/mm2]
- longwise, not less than
- crosswise, not less than



130
220



130
220



130
220



140
240



140
240



140
240
Weldable joint strength, not less than [N/15 mm] 2,0 2,0 2,0 2,0 2,0 2,0
Ultimate elongation,[%]
- longwise, not less than
- crosswise, not less than


220
100


220
100


220
100


200
80


200
80


200
80
Thermal shrinkage,[%]
- longwise, not less than
- crosswise, not less than
4,5
2,5
4,5
2,5


4,5
2,5
4,0
2,0
4,0
2,0
4,0
2,0
Friction factor, (film/metal) not more than

0,35
Opacity, not more than[%] 2,6 2,6

2,8

 3,0 3,2 3,4
Gloss, not less than[%]

85
Activation level, [mN/m]

38
Substance,[ g/m2] 15,5 18,2

22,7

27,3

31,8

36,4