AQL – Acceptable Quality Level. Quality control, determines whether the outcome for a sampled selection indicates that the entire product run can be approved.
Bioplastic – Plastic manufactured from biologically produced raw materials, such as starches. Bioplastic can be split into two groups, biologically degradable plastic and plastic made from raw materials that are renewable or made from biological material (bio-based plastic).
Cavity – The hollow space for moulding a component.
Cone – A seal used in a cap. See also sealing ring.
CR cap – Child-resistant cap.
DLM – Dropless medicine.
Flip tops – Caps for one-handed opening.
Gasket – Also known as a liner or seal.
GMP – Good Manufacturing Practice. A set of practices that govern the manufacture, including packing, of pharmaceuticals, food and health food. GMP also includes rules concerning staff training and responsibilities.
Granules – A substance in granular or pellet form. Granules are used, for example, as raw materials in the plastic industry. Plastic granules are easily handled, melted down and transformed into their final shape.
HACCP – Hazard Analysis and Critical Control Points. A standardised work method that describes how to systematically analyse, assess and control hazards in food production in order to ensure safe foodstuffs for consumers.
IML – In-Mould Labelling. A printed plastic label is placed in the tool before the product is injection moulded, resulting in the label and product being combined.
Injected – Intake of plastic into the mould cavity.
Injection mould – Moulding part of the tool for exterior geometry.
Insert – Tool used for making a cavity.
IHS – Induction Heat Sealing, a liner that is welded onto the opening. Tamper-evident function.
Liner – A seal. See also seal and gasket.
MB – Masterbatch (MB) means that colour pigment has already been added to the plastic in its granular form (granules). This enables you to avoid the expensive and time-consuming process of adding colour after the plastic has been formed. Masterbatch is a type of concentrated colour pigment that is added to plastic granules and provides the desired colour for the end product.
Nozzle – The last element for heating the plastic so that it remains molten before the intake.
PE – Polyethylene, plastic material.
PEHD (HDPE) – Acronyms for high-density polyethylene plastic.
PELD (LDPE) – Acronyms for low-density polyethylene plastic.
PET – Polyethylene terephthalate, plastic material.
Pitch – Distance between threads.
Polymer – A large molecule comprised of many small identical molecules linked together in a long chain. Plastic is made of polymers.
POM – Plastic materials within the group known as polyoxymethylene plastics, also called polyacetal or acetal plastic.
Puller ring – The moulding part for the bottom of the cap and the last action performed in the tool during moulding (the product is ejected from the tool).
Push-on – The cap is pushed onto the bottle/tube during the production process and cannot be removed.
PP – Polypropylene, plastic material.
Screw-on – The cap is screwed onto the bottle/tube and can be unscrewed and screwed on again.
Sealing ring – A seal used in a cap. See also cone.
Seal – A seal. Seals can be implemented with EPE/PET, aluminium/paper, IHS. See also liner and gasket.
Sprues – Holes or channels into the mould through which the plastic is injected.
Stop – Prevents the component from rotating when being shaped.
Tamper-evident band – Tamper-evident function for caps.
Tamper-evident ring – Tamper-evident function for caps.
Thermoplastic – Plastic that softens when heated and stiffens again when cooled. Can be reshaped over and over again and is recyclable.
Thermosetting plastic – Plastic that is hardened during its manufacture and as such cannot be reshaped once made.
Threaded core – Moulding part of the tool for interior geometry.
UN – Transport of hazardous goods.