JP2017190158A5 - - Google Patents

Claims (17)

A packaging bag including a strip-like vertical seal portion and a horizontal seal portion to which film materials stacked one another are joined, and the vertical seal portion and the horizontal seal portion form a storage space in which contents can be stored. ,
The vertical sealing portion includes an inner peripheral sealing area located adjacent to the housing space, an outer peripheral sealing area formed at a position farther from the housing space than the inner peripheral sealing area, and the inner peripheral sealing area. And an intermediate area located between the outer sealing area and the outer sealing area,
The outer peripheral sealing area is a longitudinal sealing area having longitudinal convex portions extending continuously in the longitudinal direction,
The intermediate region has a grid-like unevenness or has a non-longitudinal protrusion which continuously extends in a lateral direction or an inclination direction in which at least a part is inclined with respect to the lateral direction. A packaging bag characterized in that it is a sealing area.   The inner edge side sealing region is a strip-like textured surface having a strip-like smooth seal region extending continuously in the longitudinal direction, and an uneven rough surface extending continuously in the longitudinal direction and on which fine irregularities are formed. A packaging bag according to claim 1, characterized in that it comprises at least one of the sealing area.   When the vertical eye seal area is a first vertical eye seal area and the vertical eye convex portion is a first vertical eye convex area, the inner edge side sealing area extends continuously in the vertical direction. 3. A packaging bag according to claim 1 or 2, characterized in that it comprises a second longitudinal seal area having an eyelet.   The packaging bag according to claim 3, wherein the first longitudinal seal area and the second longitudinal seal area are adjacent to the non-longitudinal seal area.   The non-longitudinal projections in the non-longitudinal seal area are continuous from the first longitudinal convex section in the first longitudinal seal area to the second longitudinal convex area in the second longitudinal seal area. 5. The packaging bag of claim 4, wherein the bag extends. The non-longitudinal protrusion is a horizontal protrusion continuously extending in the lateral direction,
The packaging bag according to any one of claims 1 to 5, wherein the non-vertical seal area is a horizontal seal area in which a plurality of the horizontal convexes are formed. The non-longitudinal convex portion is an inclined convex portion continuously extending in the inclined direction,
The packaging bag according to any one of claims 1 to 5, wherein the non-longitudinal seal area is an inclined seal area in which a plurality of the inclined convex portions are formed. The non-longitudinal convex portion is a V-shaped convex portion continuously extending in a V shape,
The packaging bag according to any one of claims 1 to 5, wherein the non-longitudinal seal area is a V-shaped seal area in which a plurality of the V-shaped convex portions are formed. The non-longitudinal convex portion is a wave convex portion continuously extending in a wavy line shape in the lateral direction,
The packaging bag according to any one of claims 1 to 5, wherein the non-longitudinal seal region is a corrugated seal region in which a plurality of the corrugated convex portions are formed. The non-longitudinal convexes are arch convexes that continuously extend in an arc shape,
The packaging bag according to any one of claims 1 to 5, wherein the non-longitudinal seal area is a bow seal area in which a plurality of the bow convex portions are formed.   The packaging bag according to any one of claims 1 to 10, wherein the vertical sealing portion and the horizontal sealing portion are heat sealing portions to which the superposed film materials are heat-welded. A pair of rotating bodies for sandwiching the superposed film material by the sandwiching part and conveying it in the longitudinal direction, and bonding the film materials overlapped by heat and pressure in the sandwiching part,
An outer surface of one of the rotating bodies is continuously extended in the circumferential direction, and a first region including at least one of a smooth annular surface continuously extending in the circumferential direction, a textured annular surface, and an annular convex portion. A second region having an annular convex portion, and between the first region and the second region in the axial direction of the one rotary body, and having a grid-like unevenness, or at least a part of the second region has A third region having a convex portion continuously extending in the axial direction or in the inclined direction inclined with respect to the axial direction;
The outer surface of the other rotating body is disposed to face the first region, and the film material is held between the first region to conform to the surface shape of the first region in the film material. The surface shape of the second area on the film material by disposing the film material between the first corresponding area forming the seal portion and the second area and facing the second area. A second corresponding area forming a seal portion along the second area and the third area, and the film material is sandwiched between the third area and the third area to form the third area in the film material And a third corresponding region forming a seal portion along the surface shape.   An apparatus for producing a packaging bag comprising the pair of rotating bodies according to claim 12. The number of the first vertical ridges in the first vertical seal area and the distance between the adjacent first vertical ridges are the number of the second vertical ridges in the second vertical seal area, The packaging bag according to any one of claims 3 to 5, characterized in that it is the same as the interval between the adjacent second vertical ridges. The second area is a first longitudinal seal forming area,
The first region includes a second longitudinal seal forming region including the annular convex portion,
The pair of rotary bodies according to claim 12, wherein the first longitudinal seal forming area and the second longitudinal seal forming area are adjacent to the third area. The said convex part of the said 3rd area | region is continuously extended from the said annular convex part of a said 1st vertical seal formation area to the said annular convex part of a said 2nd vertical seal formation area. The pair of rotating bodies according to 15. The number of the annular projections in the first longitudinal seal forming area and the interval between the adjacent annular projections are the number of the annular projections in the second longitudinal seal forming area, and the adjacent annular projections. The pair of rotating bodies according to claim 15 or 16, which are the same as the interval of.