Oxygen-absorbing label

An oxygen-absorbing label comprising base sheet means for attachment in contiguous relationship to a foreign body, a cover sheet, and an oxygen-absorbing composition between said base sheet means and said cover sheet, said oxygen-absorbing composition including a mixture in particulate form of particulate iron and particulate electrolyte material, and a moisture-sensitive material, said particulate iron and said particulate electrolyte material and said moisture-sensitive material being confined into a layer between said base sheet means and said cover sheet, said moisture-sensitive material comprising a sheet of moisture-absorbing paper positioned between said base sheet and said mixture of particulate iron and particulate electrolyte material.

An oxygen-absorbing label comprising base sheet means for attachment in contiguous relationship to a foreign body, a cover sheet, and an oxygen-absorbing composition between said base sheet means and said cover sheet, said oxygen-absorbing composition including a mixture in particulate form of particulate iron and particulate electrolyte material, and a moisture-sensitive material, said particulate iron and said particulate electrolyte material and said moisture-sensitive material being confined into a layer between said base sheet means and said cover sheet, said mixture of particulate iron and particulate solid electrolyte material being located between said cover sheet and a sheet of polymer material containing said moisture-sensitive material.

An oxygen-absorbing label comprising base sheet means for attachment in contiguous relationship to a foreign body, a cover sheet, and an oxygen-absorbing composition between said base sheet means and said cover sheet, said oxygen-absorbing composition including a mixture in particulate form of particulate iron and particulate electrolyte material, and a moisture-sensitive material, said particulate iron and said particulate electrolyte material and said moisture-sensitive material being confined into a layer between said base sheet means and said cover sheet, said moisture-sensitive material comprising a sheet of moisture-absorbing paper positioned between said cover sheet and said mixture of particulate iron and particulate solid electrolyte material.

An oxygen-absorbing label comprising base sheet means for attachment in contiguous relationship to a foreign body, a cover sheet, and an oxygen-absorbing composition between said base sheet means and said cover sheet, said oxygen-absorbing composition including a mixture in particulate form of particulate iron and particulate electrolyte material, and a moisture-sensitive material, said particulate iron and said particulate electrolyte material and said moisture-sensitive material being confined into a layer between said base sheet means and said cover sheet, said mixture of particulate iron and particulate electrolyte material being located between said base sheet and a sheet of polymer material containing said moisture-sensitive material.

A web of a plurality of individual oxygen-absorbing labels, each of said labels comprising a base sheet, a cover sheet secured to said base sheet to define a chamber therebetween, particulate oxygen-absorbing material in particulate form confined in a layer in said chamber by being in effective engagement with both said base sheet and said cover sheet, and connecting means connecting said individual labels to form a web consisting of a plurality of labels, said connecting means comprising the edge portions of adjacent labels.

An oxygen-absorbing label comprising a base sheet, a gas permeable cover sheet secured to said base sheet to define a space therebetween, a mixture of particulate iron and particulate electrolyte material and a moisture sensitive material being confined in said space between said base sheet and said cover sheet, said cover sheet being adhesively secured to said base sheet by a first adhesive layer along a border area which is outwardly of said space and which is free of said mixture, and a second adhesive layer on said base sheet on the opposite side thereof from said first adhesive layer for adhesively securing said label to a foreign body.