An oxygen scavenger composition includes an organic oxygen scavenger, a transition metal catalyst, and a blend of at least two photoinitiators selected from 1,3,5-tris(4-benzoylphenyl)benzene, thioxanthone derivative, acyl phenylphosphineoxide derivative, and diphenyl sulfide derivative. A film includes at least one layer including an organic oxygen scavenger, a transition metal catalyst, and a blend of at least two photoinitiators selected from 1,3,5-tris(4-benzoylphenyl)benzene, thioxanthone d...

A multi-layer, thermoplastic film bi-axially oriented at a stretching ratio .gtoreq. to about 3.0:1 in the machine direction and at a stretching ratio .gtoreq. about 6.0:1 in the transverse direction, which film comprises a layer a) comprising at least 50 wt. % of a crystalline or partially crystalline co-polyamide characterized by a T.sub.g.ltoreq.100.degree. C. and at least one outer heat-sealing layer b) comprising a polyolefin, said film being further characterized in that it has a % free sh...

A vacuum packaging machine for performing a vacuum sealing operation on product packages, comprises a vertical stack of vacuum chambers 4 which each manage to receive at least one unsealed product package 2 and are operable to perform an independent vacuum sealing operation on the least one product package 2. A conveyor arrangement 8, 9 is operable to load and unload a selected vacuum chamber 4 with the at least one product package, and the machine is arranged to operate the respective vacuum ch...

An oxygen scavenger film includes a layer including a blend of an oxygen scavenger and a polymer selected from high density polyethylene, polypropylene or a propylene copolymer, and a sealant layer. Alternatively, both the oxygen scavenging layer and the sealant layer include a polymer selected from high density polyethylene, polypropylene or a propylene copolymer. The hot tack strength of these films is at least 2.0 Newtons/inch at 135.degree. C., according to ASTM F 1921-98, measured with DTC ...

A method of triggering a film containing an oxygen scavenger includes providing composition including a peroxide; and packaging the composition in a film including an oxygen scavenger; whereby the oxygen scavenger is triggered in the absence of ultraviolet light, visible light, and electron beam radiation by exposure to the peroxide or an associated enriched oxygen environment.

A method includes triggering an oxygen scavenger; and storing the scavenger in a container configured such that the oxygen scavenger exhibits no substantial oxygen scavenging activity while inside the container. The triggered oxygen scavenger can later be removed from the container, and used in packaging oxygen sensitive products. A stored oxygen scavenger, triggered, is also disclosed. A method of distributing an oxygen scavenger film includes providing a tubular film at a first location, the f...

An apparatus for taking up imbricated bags carried by a pair of carrier tapes includes two carrier tape winding spools positioned coaxially with one another; and a differential gear unit positioned between said spools and adapted to be removably connectable to a shaft of a bag loader whereby the pair of carrier tapes can be wound up on said spools with equal tension. A method includes providing a bag train having a succession of imbricated bags on two supply tapes having lead ends equipped with ...

A method includes triggering an oxygen scavenger; and storing the scavenger in a container configured such that the oxygen scavenger exhibits no substantial oxygen scavenging activity while inside the container. The triggered oxygen scavenger can later be removed from the container, and used in packaging oxygen sensitive products. A stored oxygen scavenger, triggered, is also disclosed. A method of distributing an oxygen scavenger film includes providing a tubular film at a first location, the f...

Apparatus for use in packing meat cuts including a machine vision system arranged to scan or view individual meat cuts and acquire dimensional, volume, shape, cut type, or meat quality or grading information or other information relating to the individual meat cuts, two or more meat cut packing stations arranged to receive the acquired information relating to individual meat cuts and to dispense to an operator or automatedly apply to the meat cuts a pack matched to each individual meat cut as me...

This invention relates to packaging apparatus and a method which enables bags of different widths and lengths to be produced so as to enable products of varying sizes to be packaged in those bags.