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US 12,446,640 B2Granted
Method of producing and manufacturing gloves, and other personal protective equipment (PPE), using multi-ply flexible films
AssigneeDorothy Ressel Intellectual Properties, Inc.
InventorDorota Ressel
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Abstract
A method of producing multi-ply foil sheets intended for the manufacturing of protective covers for body parts, in particular gloves or packaging, comprising of at least two individual plies of film (12) stacked on top of each other and interconnected by means of week and non-continuous bonding, achieved by thermal embossing or ultrasonic welding. The invention also relates to personal protective equipment (PPE) or packaging made of the same multi-ply films.
Claims20
A method of manufacturing personal protective equipment (PPE) comprising:
- stretching a first ply of film in a first direction;
- stretching a second ply of film in a second direction perpendicular to the first direction;
- corrugating the first ply of film;
- corrugating the second ply of film;
- stacking the first ply of film and the second ply of film after corrugating the first ply of film and the second ply of film, wherein the first ply of film and the second ply of film are stacked in stretched orientations and wherein a stretched orientation of the second ply of film is perpendicular to a stretched orientation of the first ply of film;
- and
- interconnecting the first ply of film and the second ply of film through weak bonding through one of thermal embossing or ultrasonic welding;
- wherein the first ply of film is non-continuously bonded to the second ply of film.
5 more elements
A method of manufacturing personal protective equipment (PPE) gloves comprising:
- providing at least two upper plies of film;
- stretching a first ply of film of the at least two upper plies of film in a first direction and stretching a second ply of film of the at least two upper plies of film in a second direction perpendicular to the first direction;
- stacking the first ply of film of the at least two upper plies of film and the second ply of film of the at least two upper plies of film after corrugating the first ply of film of the at least two upper plies of film and the second ply of film of the at least two upper plies of film, wherein the first ply of film of the at least two upper plies of film and the second ply of film of the at least two upper plies of film are stacked in stretched orientations and wherein a stretched orientation of the second ply of film of the at least two upper plies of film is perpendicular to a stretched orientation of the first ply of film of the at least two upper plies of film;
- interconnecting the at least two upper plies of film through one of thermal embossing or ultrasonic welding, wherein the at least two upper plies of film are passed through a hot mesh roller with a grooved non-continuous pattern that forms a mesh pattern on the at least two upper plies of film when interconnected;
- stacking at least two lower plies of film;
- stretching a third ply of film of the at least two lower plies of film in the first direction and stretching a fourth ply of film of the at least two lower plies of film in the second direction perpendicular to the first direction;
- interconnecting the at least two lower plies of film through one of thermal embossing or ultrasonic welding, wherein the at least two lower plies of film are passed through the hot mesh roller with a grooved non-continuous pattern that forms a mesh pattern on the at least two lower plies of film when interconnected;
- stacking the at least two upper plies of film over the at least two lower plies of film;
- cutting the at least two upper plies of film and the at least two lower plies of film in the shape of a glove;
- and
- sealing the cut at least two upper plies of film and the cut at least two lower plies of film to one another.
8 more elements
Dependencies are inferred from the claim text.