B31B2155/00

Automatic packaging bag production device and method

An automatic packaging bag production device is provided. The automatic packaging bag production device includes an easy-tear line forming mechanism, a sealing and cutting mechanism, a tray, and a traction mechanism, where the easy-tear line forming mechanism includes a first passage and is configured to form an easy-tear line on a belt-shaped material passing through the first passage; the sealing and cutting mechanism includes a second base plate, and a cutting assembly and a sealing assembly arranged on the second base plate; the cutting assembly includes an upper cutter and a lower cutter that are movable close to or away from each other and a second passage is formed between the upper cutter and the lower cutter; the sealing assembly includes an upper sealer and a lower sealer, and a third passage is formed between the upper sealer and the lower sealer.

Bottom and side gusseted package and method
10301074 · 2019-05-28 · ·

A bottom and side gusseted package comprises a package body, a pair of inwardly extending side gussets, and a bottom gusset positioned transversely of a longitudinal axis of the package body. Formation of the gusseted package is effected by positioning individual sleeves transversely of the longitudinal axis of a flexible web which forms the package body. During package formation, the inwardly extending side gussets are formed, and the flexible web is cut to form individual packages, such that each individual sleeve forms a bottom gusset in a respective one of the gusseted packages.

THERMOPLASTIC BAG PRODUCED WITH A BACK SEAM WELDER
20190152162 · 2019-05-23 ·

A thermal welder is configured to weld a back seam of a bag formed of thermoplastic sheet material. The welder may include a weld heater and a compression mechanism downstream of the weld heater to compress the sheet material to form the back seam. The welder may also include a weld breaker downstream of the compression mechanism to break apart incidental welds which are formed adjacent the back seam.

Polymeric films and bags
10293980 · 2019-05-21 · ·

The present invention is directed to a method of incrementally stretching polymeric film formed from a blown film extrusion process. The present invention is further directed to a polymeric bag formed from an incrementally stretched polymeric film. The incremental stretching is performed on a collapsed polymeric bubble via a pair of intermeshing rollers. The incrementally stretched polymeric film may be stretched only along a portion of its width. The polymeric bag may be a drawstring trash bag with an extended hem where only the extended hem of the bag or the body of the bag comprises incrementally stretched polymeric film.

Non-continuously laminated structures of thermoplastic films with differing material compositions and functional material properties

A non-continuously laminated structure of thermoplastic films comprises thermoplastic films with differing material compositions and differing functional benefits. In particular, one or more embodiments comprise thermoplastic films that are co-extruded separately and then combined together by a post-extrusion bonding process. The differing composition of the various films of the non-continuously laminated structure of thermoplastic films and the post-extrusion bonding process, provide the structures with the functional benefits of the individual films.

Apparatus for making a flat bottom pillow pouch

The present invention discloses a flat bottom pillow pouch that can stand upright on its bottom transverse seal. The flat bottom pillow bag can be made from the same film as a standard pillow pouch and requires less film than prior art stand up packages. The flat bottom pillow pouch disclosed herein has no gussets.

Method and apparatus for making skirtless seals
10279557 · 2019-05-07 · ·

A machine and method for converting film into bags or other articles includes a web traveling from an input section to a rotary drum, to an output section. The rotary drum includes at least one seal bar with a sealing zone and a weakening zone, or it can include or at least one sealing die that extends in the machine direction. The single sealing zone or sealing die may be a heated perforator, and may include a heating wire. The heating wire may be an NiCr wire stitched into the heater, and be disposed on a cap or on the seal bar. The weakening zone may create a line of weakness that is uniform or varies in intensity. The sealing zone may include temperature zones, cartridge heaters, cooling air, or heated air, or a source of ultrasonic, microwave or radiative energy.

Applicator systems for mounting strip-like fitments to flexible packaging
10279944 · 2019-05-07 ·

A fitment mounting apparatus for mounting a hold open fitment to flexible packaging, wherein the hold open fitment has a flexible configuration variable between a first un-distended shape and a second stably distended shape, including a frame forming a holder configured for holding more than one of the hold open fitments within the holder, a flexible packaging positioning system arranged for positioning flexible packaging for mounting the hold open fitment to the flexible packaging, and an applicator coupled to the frame configured to engage at least one edge of the hold open fitment in the holder and bias the at least one edge so that the hold open fitment is singulated, from others of the more than one hold open fitments in the holder, and issued from the holder into the flexible packaging on the flexible packaging positioning system substantially simultaneous with singulation.

Bag having bottom handle formed through an area of folded and heat-welded layers

A bag including a containment portion having an opening to receive items, a bag seal at an end of the bag opposite the opening, a handle seal at an end of the containment portion opposite the opening, the handle seal located between the bag seal and the opening, and a handle in a handle body formed between the handle seal and the bag seal.

Method and apparatus for making sealed pouches

A method and apparatus for making pouches is disclosed. It includes using one or more of the following features: using two servo motors to drive a platen, providing a calibration routine is run at start-up and/or after the machine has been operating; controlling in response to feed back from the servo motor(s) such as feedback indicative of the distance the platen travels; the feedback is not of force exerted by the platen; and/or the platen is controlled to prevent unacceptable fracturing of the film laminate.