Special Construction

Super Sack containers can be made to any of the following packaging requirements.

Sift and/or Moisture Resistant
F1 Sift resistant construction. Filler cord in side seams, top and bottom setting seams.

F2 Sift resistant construction. Filler cord in side seams, top and bottom setting seams, and top chute sewing and setting seams.

F3 Sift resistant MaxSack™ construction. Filler cord in side seams, bottom setting seams, and top chute sewing and setting seams. A 1.25” reinforcement web is sewn around top when setting the top into the bag and a 1/2” web is sewn between baffles and side panels.

RAT (Reinforcement Around the Top)
Webbing sewn around the top perimeter of the bag for added strength.


Clean Seal^® and Ultrasonic Cutting Technology
Our exclusive Clean Seal cutting technology produces a smooth, clean, clear edge after cutting.

Clean Level I Standard for all of our Domestic/Mexico Super Sack containers. All fabric is cut using our proprietary Clean Seal process to melt and seal the edges or with our ultrasonic cutting technology, both of which prevent raveling and contamination. Most seams are sewn to the outside to prevent any possible contamination in the container.

Clean Level II Same as above, plus the fill and duffel discharge spouts are wrapped around the hole in top and bottom panels of the container.

Clean Level III Extra Clean; all fabric edges, other than hemmed edges, are cut using Clean Seal or ultrasonic cutting technologies, both of which produce the cleanest edge possible. All thread ends are burned; the fill and duffel discharge spouts are wrapped around the hole in top and bottom panels.

Clean Level/Food Grade Can include any Clean Level listed above and includes: Tops and bottoms cut with the ultrasonic cutting machine have clean sealed top and bottom spout hole edges. Employees wear appropriate garments, such as beard covers and hairnets, and use disinfectant soap at washing facilities. All contact surfaces in the manufacturing area are washed down with a disin- fectant solution. When specified, assembled containers are scanned using state-of-the-art metal detection equipment, finding any metal objects that typically would escape conventional visual inspection. Finished bags are packaged in a lined baler bag and set on a new pallet for shipping.