PSSMA Multiwall Tutorial

PSSMA invites you to explore the world of multiwall packaging. 

In this tutorial, you will find a broad spectrum of information about multiwall sacks and the industry that produces them for thousands of customers across the United States.   

Each chapter focuses on a different aspect of multiwall sacks:  from who uses them to how they are made and much more.  

Learn more about why multiwall sacks are the natural packaging choice.

  • History of the Multiwall Sack
  • Multiwall Bag Construction and Styles
  • Multiwall Shipping Sacks Today
  • How to Size a Sack
  • End Use Applications
  • Bag Making-The Manufacturing Process
  • Advantages of Paper Shipping Sacks
  • Filling and Closing Equipment
  • Paper Making for Multiwall Bags
  • Shipping of Filled Multiwall Sacks
  • Grades of Paper Used in Multiwall Structures
  • Performance Testing
  • Barriers Used for Multiwall Bags
  • Shipping Regulations
  • Adhesives