Caps & closures test centre – hinge and standard caps
Injection moulding pilotsConverting trials 4 cavity tool with two different hinge design closure with 2 different inlet (2x2) All 4 cavities with different surfaces
- One cavity high polished
- One sandblasted
- Two with emery
Cap for 28 mm neck finish PCO1810 Double seal system (“Bericap design”) Husky/Scöttli 2-cavity mould Operations
- Processing trials on High Performance Netstal HP1200 Injection moulding Machine
- High melt screw 24D
- Max injection pressure 2100 Bar
- Tests at industrial relevant conditions
Materials
- PP homo/Raco/Heco
- HDPE for carbonized /non-carbonized beverage
- Elastomers
- Compounds
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Processing trials/resultsMaterial evaluations
- Material selection and verification
- Evaluation of recycled material
- Flow characteristics
- Material combinations (e.g. MB)
- Raw material quality and consistency
Processability evaluation
- Process parameter optimisation
- Quality improvement
- Cycle evaluation
- Energy consumption study
- Machine pressure, temperature and speed requirements
- De-moulding behaviour
Applications
- Liquid food packaging
- Cosmetic caps
- Detergents and household chemicals
- Beverage caps
- Standard caps for household and industrial chemicals
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Performance testingStandard tests /Datasheet tests Norner performs very many standard tests
- Mechanical properties according to ISO / ASTM standards
- Chemical characterization
- Food migration OML/SML
Performance tests
- Closure dimensions
- Hinge Torque
- Hinge Tensile test
- Hinge fatigue test
- Response of Colour MB of performances
- Cap doming
- Leakage testing
- Secure Seal Test (SST)
- CO2 retention
- Test Method for Environmental Stress Crack Resistance (ESCR) of Threaded Plastic Closures (ASTM D5419-14a./ ASTM D5419-95
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