Packaging bag sealing method and a filled and sealed packaging bag
AssigneeToyo Jidoki Co., Ltd.
InventorMasanori Yasuhira
Life of this patent
Estimating the term…
Abstract
An area where a liquid substance, for instance, is present inside a bag, that is, the area where the liquid substance adheres to the inner surface of the bag, is ultrasonically sealed (thus forming an ultrasonically sealed area), and then an area that is separated from the ultrasonically sealed area by a predetermined distance toward the edge of the mouth of the bag is heat-sealed (thus forming a heat-sealed area), so that the a portion of the liquid substance, that is separated and is present above the ultrasonically sealed area, is sealed inside the space between the two sealed areas.
Claims7
A packaging bag sealing method which seals an opening area of a packaging bag that is filled with packaged matter, said method comprising the steps of:
- ultrasonically sealing an area of said packaging bag where said packaged matter is present inside said packaging bag, and
- heat-sealing another area of said packaging bag which is separated from said ultrasonically sealed area by a predetermined distance toward an edge portion of a mouth of said packaging bag,
- thus allowing a portion of said packaged matter to be confined between said ultrasonically sealed area and said heat-sealed area, said portion of said packaged matter being separated upward by said ultrasonically sealed area.
A packaging bag sealing method which seals an opening area of a packaging bag that is filled with a liquid substance, said method comprising the steps of:
- ultrasonically sealing an area of said packaging bag where said liquid substance is present inside said packaging bag, and
- heat-sealing another area of said packaging bag which is above said ultrasonically sealed area without any spacing in between by way of press-holding said another area by a pair of heating plates, and simultaneously heating a still another area above said heat-sealed area without press-holding said still another area by said heating plates.
A filled and sealed packaging bag comprising:
- an ultrasonically-sealed area formed by ultrasonically sealing an area that is separated from an edge portion of a mouth of said packaging bag by a predetermined spacing, and
- a heat-sealed area formed in an area that is separated from said ultrasonically sealed area by a predetermined distance toward said edge portion of said mouth of said packaging bag;
- wherein
- a portion of said packaged matter is confined between said ultrasonically sealed area and said heat-sealed area.
Dependencies are inferred from the claim text.