Injection Blow Moulding

Injection blow moulding stands as a preeminent manufacturing process for creating hollow products in bulk, with a focus on containers like bottles and jars known for their precise and high-quality finish.

Overview of Injection Blow Moulding:


  • High-Volume Production: Optimised for manufacturing large quantities of hollow objects.

  • Quality Finish: Yields bottles and containers with exceptional visual and dimensional precision, out-performing extrusion blow molding.

  • Versatile Container Design: Suitable for producing both narrow and wide-mouth containers, delivering a finished product without excess material, also known as flash.



Step-by-Step Process:


1. Injection Stage:

  • Molten polymer is injected into a cavity through a hot runner block.

  • PREFORM is shaped using a mandrel for the interior and the cavity for the exterior dimensions.

  • The set-up includes a timed process where molds and core pins separate, rotating the preform for further processing.


2. Blowing Stage:

  • The preform is heated to the right temperature and placed in the BLOWMOULD area.

  • Moulds close around the preform, and it is inflated using precise air pressure levels to form the final shape.


3. Discharge Stage:

  • After cooling, the moulds open, and the preform is automatically ejected, often using robotics for efficiency.

  • The entire process operates concurrently on a revolving carousel of molds to maximize production.



Commonly Used Materials:


  • Variety of Polymers: Includes Low Density Polyethylene (LDPE and LLDPE), Polypropylene (PP), Polyethylene Terephthalate (PET), Polyvinyl Chloride (PVC), and High Density Polyethylene (HDPE).



Typical End Products:


  • Plastic Bottles: The primary output of this process, serving a vast array of packaging needs.


Injection blow moulding is crucial in the packaging industry, producing bottles that meet stringent quality standards while providing the flexibility to use a range of thermoplastic materials.

Injection Blow Moulding

Related Brands

Westlake Chemical
Envalior
BrandsNovamid
Equipolymers
BrandsLighter
Trinseo
BrandsEmergeCalibre

Related Markets

Rigid Packaging
SegmentsTubes • General • Thin Walled Packaging • Pails and Containers • Bottles and Jars • Sheet and Trays • Pallets • Cups and Glasses • Closures
Consumer Goods
SegmentsToys • Flooring • Apparel • Kitchenware • General • Sport & Leisure • Kitchen Appliances • General household • Garden tools • Furniture • Personal Care • DIY/ Home improvement • Stationary • Shoewear
Compounding
SegmentsRubber Compounds • Adhesives • General • Purging • Masterbatch
Flexible Packaging
SegmentsMedical • Food Packaging • Heavy duty packaging • Protective film • Biaxially oriented film • Seal/peel • Labels • General • Shrink film • Stretch film

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