Rollstock is a continuous printed or unprinted web supplied on a roll. The buyer’s equipment forms, fills and seals the package, so web width, repeat length, unwind direction, core, eye mark and sealant layer must match the line.

A finished pouch has already been converted into a three-side-seal, stand-up, flat-bottom, side-gusset, zipper or other pouch format. The filling operation opens, fills and closes the pouch using the designed top seal, zipper, spout or closure.

No. Rollstock removes some off-site pouch-forming work but transfers forming and sealing responsibility to the buyer’s line. Total economics depend on equipment, speed, waste, labor, changeover, features, order quantity and validation.

Provide the machine type, maximum and preferred web width, core size, roll diameter or weight limits, unwind direction, print repeat, eye-mark specification, sealing system, filling speed and any existing approved roll sample.

Provide pouch style, outside dimensions, gusset, top opening, seal areas, zipper or spout details, filling method, product weight or volume, headspace, closing method and packing orientation.

With rollstock, the buyer’s form-fill-seal equipment creates the package seals. With pre-made pouches, the converter creates most structural seals and the filler normally creates the final closing seal. Responsibilities and acceptance tests should be defined for both routes.

Not automatically. The dieline, repeat, eye marks, seal zones, gussets, zipper or spout position and print distortion can differ. Artwork should be rebuilt on the approved production template for the chosen format.

For rollstock, a machine trial or representative web sample can confirm feeding, registration and sealing. For finished pouches, buyers should confirm dimensions, opening, filling, closing, appearance and package integrity under the intended process.