Encyclopedic Dictionary of Polymers

2011 Edition
| Editors: Jan W. Gooch

Blow-up Ratio

  • Jan W. Gooch
Reference work entry
DOI: https://doi.org/10.1007/978-1-4419-6247-8_1434

n (BUR) (1) In blow molding, the ratio of the largest diameter of a cavity into which a parison is to be blown to the outside diameter of the parison. (2) In blown-film extrusion, the ratio of the film diameter, before collapsing or gusseting, to the mean diameter of the die opening.

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Jan W. Gooch
    • 1
  1. 1.AtlantaUSA