| MATERIALS |
PROPERTIES |
USES
(examples) |
|
LDPE
(Low density polyethylene)
|
Vapour barrier - Flexibility for seals - Mouldability - Tearability
- Flexibility - Excellent stretchability - Sterilisation - Chemical
inertness - Transparency Tactile effect
|
Trays
- Boxing - Screw or clip tops - Nozzles Stretchable and shrink films
for bundling (multiple-unit packs) and palletting - Bottles - Stopper
seals - Carrier bags - Small bags - Tubes
|
|
HDPE
(High Density Polyethylene)
|
Vapour
barrier - Mouldability - Rigidity (for mechanical testing) - Impact
resistance - Chemical inertness - Resistance to stress-cracking
- Sterilisation - Suitable for freezing (-40°C) - Opaqueness
|
Large drums - Screw or clip tops - Bottles - Crates and cases -
Covers - Films for postal dispatch - Flasks - Drums and reusable
containers - Pots - Tubes
|
PP
(Polypropylene) |
Rigidity
- Resistance to sterilisation - Resistance to cold - Vapour barrier
- Chemical inertness - Suitable for freezing (-40°C) - Suitable
for micro-waves (+120°C) - Low density Resistant to stress-cracking
- Resistant to folding - Thermal packing - Contact transparency
-Clarified PP - OPP (oriented PP) EPP (expanded polypropylene: resistance
to repeated impacts)
|
Alveolate
material - Tray containers - Screw and clip tops - Crates and cases
- Covers - Thermoforming sheets - Transparent films and bags - Bottles
- Reheatable plates - Pots - Tubs -Flasks -Films - Pails -
|
PVC
(Polyvinyl chloride) |
Inertia
- Good stretchability - Machinability - Excellent memory - Resistance
to stress-cracking - Transparency
|
Tray
containers - Boxes - Bottles - Flasks - Blister packs - Sheets for
thermoforming - Food-contact films
|
PS
(Polystyrene) |
Compact
Crystal PS - Transparency - Brilliance - Rigidity - Hight Impact
PS - opaqueness, Impact-resistant - Brilliance - Cleavability Direct
glazing: - Light - Heat sealable - Warm touch
|
Tray
containers (with stretch film) - Egg containers - Caps - Covers
- Thermoforming sheets, pots for dairy products, cups for automatic
drink machines - plates/trays
|
EPS
(Expanded polystyrene) |
Light
- Isothermal - Multiple density - Simple or complex shapes - Mouldable-
Leak-proof - Mechanical strength - Impact resistance - EPS complexing
+ films
|
Tray
containers - Mini-crates - Transport cases - Protective cushioning
- Food transport pallets
|
PET
(Polyethylene terephthalate) |
| 1/
APET (amorphous) - Transparent - Perfume compatible - Shiny
- Impact resistant - Resistant to internal pressure - Resistant
to stress-cracking - Gas barrier - |
| 2/
CPET (crystallised), same properties as APET but not transparent |
|
3/ PETG (glycol): amorphous, same properties as APET |
|
| 1/
Tray containers - Boxes - Bottles - Lids - Thermoforming sheets
- Films Flasks - Pots - |
|
2/ Oven trays (220°C) - Blister packs - Bottles - Flasks - Pots
- Films - |
|
3/ Thermoforming sheets - Tray containers - Lids |
|
PET/PEN
copolymer |
Gas barrier - UV barrier
|
Bottles
- Flasks
|
|
Laminates
(Combination of materials using PE, PP, PVC, PET, EVOH, PVCD, aluminium,
paper or cardboard)
|
Structure
adapted to application: complementary properties - Barrier to aroma,
perfume and gas.
|
Flexible
and rigid packaging with special barrier properties - Closures for
heat sealing - Tubes - Packing in modified atmosphere or vacuum.
|
PC
(Polycarbonate) |
Sterilisation
- Resistance - Transparency
|
Bottles
- Flasks
|
PA
(Polyamide) |
Impact
and creep resistance - Resistance to oil and grease at high temperatures
- Resistance to solvents and alkalis - Fatigue resistance - Resistance
to wide temperature ranges (-50° - +170°C)
|
Internal
closures - Food films
|
| Surlyn
|
Transparency
- Extra-thick moulding - Perfume compatible - Leak-proof
|
Perfume
caps |
| Other
materials |
PAN
- EVOH (ethylene vinyl alcohol copolymer) - PVCD (polyvinylidene
chloride)EVA (ethylene-vinyl acetate copolymer) PLA (Poly Lactic
Acid)
|
| PROCESS |
PRODUCT |
APPLICATION |
| Extrusion |
Films
/ Sheets |
Food
film - Stretchable and shrink film for bundling (multiple packs),
palletting. - Thermoforming sheets - Sleeves - Carrier bags - Small
bags - Tubes
|
| Extrusion
/ blow-moulding |
Hollow
bodies |
Large
drums - Bottles - IBC - Flasks - Drums
|
| Injection
blow-moulding |
Hollow
bodies |
Bottles
- Flasks - Pots
|
| Calandering |
Films
/ Sheets |
Thermoforming
sheets |
| Rotational
moulding |
Hollow
bodies (large volume)
|
IBC
- Pallets
|
| Thermoforming |
Using
extruded or calandered sheets
|
Tray
containers - Blister packs - Boxes - Lids - Cups - Pots
|
| Injection |
Moulded
units |
Tray
containers - Boxes - Caps - Crates - Pallets - Pumps - Pots - Tubs
- Valves -
|
| Expanding
foam |
Moulded
units and sheets.
|
Mini-crates - Boxes - Transport cases - Cushioning - Tray containers
- - Food transport pallets
|
