A folded bag comprising a front side, a rear side, and left and right sides connecting the front and rear sides, each side having a top edge and a bottom edge; a plurality of left simple gussets and a plurality of right simple gussets formed in each of the left and right bag sides, respectively, wherein each simple gusset includes first and second outwardly-extending wings formed by respective first and second outwardly-extending folds and separated by an inwardly-extending fold; and a bottom edge seal subsuming all of the bottom edges such that the simple gussets are restrained from unfolding at the bottom edge seal and are unrestrained from unfolding along the top edges of the front, rear, and left and right sides. One or more of the simple gussets may be converted to a compound gusset by additional longitudinal folding, thus reducing further the folded width of the bag.

A leak proof container and a method of forming the container from a blank. The blank includes a bottom panel, first and second side panels connected to the bottom panel at opposing lateral edges, and first and second end portions located at opposing longitudinal ends of the blank. Each end portion includes an inner end panel connected to the bottom panel, an outer end panel connected to the inner end panel, and first and second corner panels forming gussets connected to a respective one of the first and second side panels and connected to the inner end panel. An adhesive area is located on one side of the blank and comprises at least a portion on each of the outer end panel and the inner end panel. The adhesive area adheres the gussets to the inner end panel and to the outer end panel.

A leak proof container and a method of forming the container from a blank. The blank includes a bottom panel, first and second side panels connected to the bottom panel at opposing lateral edges, and first and second end portions located at opposing longitudinal ends of the blank. Each end portion includes an inner end panel connected to the bottom panel, an outer end panel connected to the inner end panel, and first and second corner panels forming gussets connected to a respective one of the first and second side panels and connected to the inner end panel. An adhesive area is located on one side of the blank and comprises at least a portion on each of the outer end panel and the inner end panel. The adhesive area adheres the gussets to the inner end panel and to the outer end panel.

The product efficiency of bags each with an end face part is increased. A panel webs is guided to be divided along a line of weakness of the panel web and to be folded along division edges of the panel web. This guiding of the first panel and temporary sealed sections cause a side gusset to be cut open along a line of weakness of the side gusset such that open surfaces are formed. After the forming of the open surfaces, an end face web is supplied to be superposed on folded parts of the panel web and the open surfaces of the side gusset.

An envelope includes a front face receiving a closing fold and a rear face, the envelope being in a first format. The envelope includes at least one transverse fold line configured to enable the envelope to be folded on itself on its rear face so as to form at least one second format. The envelope includes at least one gluing strip on the rear face for gluing the folded envelope in the second format. A process, a use, and packaging based on such an envelope is also provided.

The invention relates to a folded bag and a method for forming a bag from a square or rectangular shaped sheet, which method comprises the steps of dividing the sheet into nine fields arranged such that eight fields surround a central field; folding the sheet along folding-lines between and across the fields in such a way that the central field forms the bottom of the bag and the eight surrounding fields form the sides of the bag and at least one inner wall providing separated compartments in the bag.

The invention relates to a folded bag and a method for forming a bag from a square or rectangular shaped sheet, which method comprises the steps of dividing the sheet into nine fields arranged such that eight fields surround a central field; folding the sheet along folding-lines between and across the fields in such a way that the central field forms the bottom of the bag and the eight surrounding fields form the sides of the bag and at least one inner wall providing separated compartments in the bag.

An apparatus for producing a filmic packaging material having a continuously folded portion includes a first component having a protruding part; a first roller rollable on its longitudinal axis, the first roller provided with a recess on its outer surface for receiving the protruding part; a drive mechanism for moving the material along a path in a manner such that a continuous portion of the material is drawn into the recess of the first roller by the protruding part of the first component such that the continuous portion of the material is folded, forming a continuously folded portion having an overlapping surface due to the arrangement of the protruding part of the first component in relation to the recess of the first roller; a bonding component provided downstream of the first roller arranged to adhere together the overlapping surface of the continuously folded portion of the material.

Disclosed are embodiments of a versatile storage bag and methods of making same. The versatile storage bag may have first and second sidewalls, a double-locking closure mechanism with a first closure element extending along the first sidewall and a second closure element extending along the second sidewall, each closure element having a channel and an elongated member configured for interlocking with one another. A double-seal along three sides of the first sidewall and the second sidewall form a gusset between two seals, leaving an opening through the double-locking closure mechanism. Corner seals may be formed at the corners of the first and second sidewalls, further reinforcing the double-locking closure mechanism for an airtight and hence waterproof seal. The versatile storage bag may be made of a food-grade polyethylene vinyl acetate blend, approximately 90% or less ethylene vinyl acetate and approximately 10% or less polyethylene.

Disclosed are embodiments of a versatile storage bag and methods of making same. The versatile storage bag may have first and second sidewalls, a double-locking closure mechanism with a first closure element extending along the first sidewall and a second closure element extending along the second sidewall, each closure element having a channel and an elongated member configured for interlocking with one another. A double-seal along three sides of the first sidewall and the second sidewall form a gusset between two seals, leaving an opening through the double-locking closure mechanism. Corner seals may be formed at the corners of the first and second sidewalls, further reinforcing the double-locking closure mechanism for an airtight and hence waterproof seal. The versatile storage bag may be made of a food-grade polyethylene vinyl acetate blend, approximately 90% or less ethylene vinyl acetate and approximately 10% or less polyethylene.