Packaging bag
AssigneeDai Nippon Printing Co., Ltd.
InventorsKozo Mita, Atsuko Takahagi, Hiroko Nozaki
Life of this patent
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Abstract
Packaging bag which comprises a main body walls of which envelops a first internal space, a wing part which envelops a second internal space, a point-seal part formed within the wing part, and a steam permeable means located within an area which is isolated from the first and second inner spaces by the point-seal part; wherein the first internal space is used for storing contents and is subjected to sealing to make a sealed space after contents storing, wherein the wing part is formed of two walls mutually-faced and extended from the wall of the main body in the direction of intersecting to the face of main body, and wherein the second inner space is communicated with the first internal space at an end thereof and closed at other ends thereof.
Claims61
Packaging bag for heating with en electromagnetic wave heating system, which comprises a lower member and an upper member, each of which is made of a composite film which has a sealant layer on at least one side, wherein said lower member uses the sealant side as the upper face, a portion of said upper member forms a wing part by doubling the portion while facing the sealant layer and sealing the open end edges of the doubled portion, the remaining portion of said upper member is superimposed on the lower member so that the sealant side of the remaining portion is used as the lower face to be opposite to the upper face of the lower member, and the edges of superimposed members are sealed, and wherein the wing part comprises a point-seal part formed therein, and a means for venting steam located within an area which is isolated from the first and second internal spaces by the point-seal part.
Packaging bag for heating with an electromagnetic wave heating system, which comprises a lower member and an upper member, each of which is made of a composite film which has a sealant layer on at least one side, wherein said lower member uses the sealant side as the upper face, a portion of said upper member forms a wing part by doubling the portion while facing the sealant layer and sealing the open end edges of the doubled portion, the remaining portion of said upper member is superimposed on the lower member so that the sealant side of the remaining portion is used as the lower face to be opposite to the upper face of lower member, and the edges of the superimposed members are sealed, wherein a fracturable portion is formed at a site of the sealed edge parts of the bag, and wherein the wing part comprises a point-seal part formed therein, and a means for venting steam located within an area which is isolated from the first and second internal spaces by the point-seal part.
Packaging bag for heating with an electromagnetic wave heating system, which comprises a lower member and an upper member, each of which is made of a composite film which has a sealant layer on at least one side, wherein said lower member uses the sealant side as the upper face, a portion of said upper member forms a wing part by doubling the portion while facing the sealant layer and sealing the open end edges of the doubled portion, the remaining portion of said upper member is superimposed on the lower member so that the sealant side of the remaining portion is used as the lower face to be opposite to the upper face of the lower member, and the edges of the superimposed members are sealed, and wherein the wing part comprises a point-seal part formed therein and which is continuously formed from the seal part or fold part at the tail end edge of a wing part, a means for venting steam located within an isolated area from the first and second internal spaces by the point-seal part.
Packaging bag which comprises
- a main body walls of which envelops a first internal space,
- a wing part which envelops a second internal space,
- a point-seal part formed within the wing part, and
- a means for venting steam located within an area which is isolated from the first and second inner spaces by the point-seal part;
- wherein the first internal space is used for storing contents and is subjected to sealing to make a sealed space which consists of the first internal space and the second internal space being in communication after contents storing, wherein the wing part is formed of two walls mutually-faced and extended from the wall of the main body in the direction of intersecting to the face of main body, and
- wherein the second inner space is communicated with the first internal space at an end thereof and closed at other ends thereof.
Packaging bag for heating with an electromagnetic wave heating system, which comprises a lower member and an upper member, each of which is made of a composite film which has a sealant layer on at least one side, wherein said lower member uses the sealant side as the upper face, a portion of said upper member forms a wing part by doubling the portion while facing the sealant layer and sealing the open end edges of the doubled portion, the remaining portion of said upper member is superimposed on said lower member so that the sealant side of the remaining portion is used as the lower face to be opposite to the upper face of the lower member, and the edges of the superimposed members are sealed, and wherein the wing part comprises a point-seal pad formed therein, a means for venting steam located within an area which is isolated from the first and second internal spaces by the point-seal part, and control seal parts which are almost in parallel with the tail end edge of a wing part and toward the point-seal part from both side edge seal parts of the bag.
Dependencies are inferred from the claim text.