A method is disclosed for forming a two-compartment bag. The method comprises draping a sheet of bag forming material around a primary fill pipe and one or more secondary fill pipes, forming multiple compartments by sealing the sheet material around the respective fill pipes, filling the various compartments with material, and sealing the bag.

The method comprises forming transverse seals so that a transverse seal area of a secondary compartment at least partially overlaps with a transverse seal area of the first compartment, so that the secondary compartment is fixedly folded against the first compartment.

The method permits the volume of the secondary compartments to be varied independent from the volume of the primary compartment. Each compartment may be opened without opening the other compartments.

In a preferred embodiment the bag is made of a microwave-compatible material, and at least one of the compartments contains a food material intended for reheating or preparation in a microwave oven.

A method of automatic packing of comminuted silicon includes providing an inner bag in a first shaping vessel, spreading out an opening of the inner bag and positioning the opening above a lip of a first filling funnel of a filling unit, and filling the inner bag with comminuted silicon. The comminuted silicon passes through the filling funnel into the inner bag. The inner bag is welded in a welding unit. The opening of the inner bag is folded together by inward folding of two opposite inner bag sides such that two inner bag edges formed by the folding-together are opposite and parallel to one another and form a fold with a channel. A vacuum welder is applied to the fold and welds the inner bag. The inner bag is transferred into an outer bag. The outer bag is welded.

A contained drum discharge system comprising a drum and connected with a lifting mechanism, wherein the drum includes a primary liner bag having the toxic powdery material to be disposed, contained within the secondary liner bag, and a tertiary liner bag enclosing the secondary liner bag; a transparent glove box; a hopper connected at a top of the glove box and with a vacuum transfer system of a material processing reactor; and a control unit connected with the glove box via a rotation mechanism and with the lifting mechanism of the drum. The glove box includes a plurality of glove ports connected with respective glove attachments; a plurality of thrashout ports with door; a sealing gasket to connect with the drum; a first liner port; a second liner port and a third liner port.

The present disclosure generally relates to a system and method to pack and convey fresh produce, in particular, for flow packing produce with an aerated packaging material into package bundles of produce prior to sealing thereof for handling and delivery.