OB Plastics Consulting Special Presentation

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A Primer in Preform Design

No other topic is shrouded in more secrecy than the design of PET preforms for the stretch blow process. This course outlines the basic principles of the design process. You will learn:

• Evaluating bottle specifications
• Gate to wall thickness ratios
• Choosing and calculating stretch ratios
• Stretching PET in different ways and resulting orientation
• Basic preform designs
• Transition length considerations
• Estimating wall thickness variations
• Differences between single stage and 2-stage preforms
• Weight estimation
• The design process from A to Z illustrated with two examples
• Each participant will receive a copy of the presentation for note-taking and a spreadsheet for weight estimation

This course discusses preforms for both the single stage and two-stage process. It is intended for designers and professionals in the industry that make decisions about PET bottles. No prior design background necessary. A 3-D design package will be required to do actual designs. However, for the presentation this is not necessary.

Length:    2 hours

Cost:    US$295, CAN$295 plus GST plus your long-distance charges to a US telephone number

Time and Date:   Mar 16, 2010   10 AM EDT   7 AM PDT   4 PM Central Europe

Register here

Questions? e-mail me or call +1-902-531-2028