What is a flat wrapping technique that creates a package within a package?

The flat wrapping technique that creates a package within a package is associated with sequential wrapping. This method involves starting with a flat sheet of material used to cover the item and then sequentially folding it to create a layered packaging effect, which enhances the protection and sterility of the contents. The sequential wraps create multiple layers around the item, ensuring that each layer is securely sealed, thereby minimizing the risk of contamination.

This technique is particularly effective in sterile processing because it provides an additional barrier against microorganisms and allows for better compliance with sterilization protocols. The design also facilitates handling and storage, making it an efficient choice for packaging instruments and supplies in a sterile environment.

In contrast, the other options either do not conform to the characteristics of a 'package within a package' format or refer to different wrapping methods not focused on layering in this specific context.