SEALING THROUGH CONTAMINATED POUCH SURFACES

Abstract

Examination of a large number of thermally processed flexible packages has shown that the primary cause of package failure can be attributed to occluded matter in the closure seal. This study indicated that by using a curved-bar sealing system reliable closure seals are attainable even when the sealing surfaces are heavily contaminated with grease or covered with water. Even without precise control of all sealing conditions, a significant improvement in seal reliability was obtained by use of curved sealing bars. Steam-flushing of the closure area was effective in reducing headspace gas volume and removing particulate contaminants from the sealing surfaces of flexible packages. Curved-bar closure seals applied after steam-flushing produced highly efficient seals.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
May 01, 1969
Accession Number
AD0692864

Entities

People

  • Gerald L. Schulz
  • Raymond T. Mansur

Organizations

  • United States Army Soldier Systems Center

Tags

Communities of Interest

  • Engineered Resilient Systems

DTIC Thesaurus Topics

  • Abstracts
  • Aluminum
  • Aluminum Foil
  • Analysis Of Variance
  • Commercial Equipment
  • Contamination
  • Dielectric Polymers
  • Dwell Time
  • Environmental Pollutants
  • Heat Energy
  • High Density
  • Internal Pressure
  • Laboratory Equipment
  • Materials
  • Packaging
  • Particulates
  • Reliability

Fields of Study

  • Environmental science

Readers

  • Agricultural Chemistry/Soil Science
  • Materials Science
  • Thermal Physics or Thermal Science.