This helps avoid bulges and stackability problems. Allows the use of high ring crush liners, which use less fiber and which typically have been susceptible to moisture. Bulk boxes are 100% recyclable.
Companies in this article
International Paper (Memphis, TN) developed a recyclable moisture barrier in bulk boxes called Moisture Vapor Protection containers. Recyclable moisture barrier is sandwiched between 2 outer layers of corrugated.
This helps avoid bulges and stackability problems. Allows the use of high ring crush liners, which use less fiber and which typically have been susceptible to moisture. Bulk boxes are 100% recyclable.