WO2014196071A1 - Sac - Google Patents

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Publication number
WO2014196071A1
WO2014196071A1 PCT/JP2013/065742 JP2013065742W WO2014196071A1 WO 2014196071 A1 WO2014196071 A1 WO 2014196071A1 JP 2013065742 W JP2013065742 W JP 2013065742W WO 2014196071 A1 WO2014196071 A1 WO 2014196071A1
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WO
WIPO (PCT)
Prior art keywords
opening
bag body
easy
bag
open
Prior art date
Application number
PCT/JP2013/065742
Other languages
English (en)
Japanese (ja)
Inventor
真理 西岡
Original Assignee
NISHIOKA Mari
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NISHIOKA Mari filed Critical NISHIOKA Mari
Priority to PCT/JP2013/065742 priority Critical patent/WO2014196071A1/fr
Publication of WO2014196071A1 publication Critical patent/WO2014196071A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5855—Peelable seals

Definitions

  • the present invention relates to a bag for storing contents such as food, medical products, and cosmetics. Specifically, the present invention relates to a bag body having an easy-open structure that is easy to open without separating a part of the bag body as garbage. The present invention also relates to a bag body having an easy-to-open structure that is easy to open without separating a part of the bag body as dust even if a fastener is provided so that it can be repeatedly opened and closed.
  • bags for housing food, medical products, cosmetics, and the like bags with four or three sides sealed around the bag and bags such as self-supporting gusset bags are provided. Some of these bags are provided with a cut portion that becomes a starting point of opening in a part of the bag so that the bag can be easily opened. However, when the bag body is cut along the cut portion, there is a problem that the cut piece is separated from the bag body and easily generates dust.
  • the bag body when the bag body is cut open, the bag body is deformed, and for example, if the contents such as potato chips confectionery are the contents, a part of the contents collapses.
  • the slit opening when the slit opening is larger than expected, the contents are easily spilled from the bag, and when the opening is smaller than expected, the contents are difficult to be taken out.
  • important display portions such as the cooking method display column and the campaign application column are broken.
  • the back-sealed seal bag body where both side edges of the bag body are bonded so as to be in the position of the back surface of the bag body, the back-sealed seal portion is picked with the fingertip of one hand, and the side opposite to the back-sealed seal portion
  • the sheet surface may be picked with the fingertip of the other hand and pulled outward to be opened.
  • Patent Document 1 discloses a packaging bag technology in which a plurality of line-like horizontal seal portions formed as opening portions of a bag body are provided with a plurality of linear vertical stripe seal portions extending in a direction intersecting therewith. It is disclosed. Thereby, when opening, it cuts along a vertical bar seal, the opening direction will follow the direction of a vertical bar seal, and it is supposed that the opening direction of a bag body will be stabilized.
  • the opening direction of the bag body is stable and easy to open by this technique, the problem that the important display portion and the like are easily broken to generate dust pieces has not been solved. Further, at the stage of tearing the contents-accommodating portion beyond the vertical seal portion, there is a problem that the opening direction is not always stable and the contents such as potato chips confectionery are easily broken. Furthermore, the bag body provided with the fastener so that it can be repeatedly opened and closed has a problem that the vertical stripe seal cannot be arranged in the direction intersecting with the fastener.
  • Patent Document 2 discloses a technique relating to a heat sealing device that performs sealing so that contents can be easily taken out.
  • Patent Document 2 discloses a bag body in which a first seal region portion having a high tear strength and a second seal region portion having a low tear strength are provided on a part of a pressure-bonding surface of a packaging bag.
  • Patent Document 3 discloses a technique of a bag body with good opening workability that can widen the opening opening and easily take out contents such as a wet sheet from the bag body.
  • a non-seal in which a difficult-to-open seal part having a peel strength that is difficult to peel off and an easy-open seal part having a peel strength that is easy to peel off are included, and the starting point of the peel is formed at the corner of the package It is said to be an area. Starting from the non-sealed region at the corner, the corner is peeled off from the corner to the easy-open seal portion to facilitate peeling and widen the opening.
  • Patent Document 4 discloses a technique of a bag body that can be opened reliably and easily in a state where a packaging bag is held with one hand without separating the opening pieces.
  • a packaging bag technology with a three-layer sheet having a support base material layer as a central layer, a sealant layer on the inner surface side, and an easy peel adjustment layer whose peelability is adjusted on the outer surface side. It is disclosed. And, the sealant layer on the inner surface side and the easy peel adjustment layer on the outer surface side are overlapped as the overlapping portion and heat sealed, so that it can be opened easily even with one hand and the opened piece should not be made garbage Has been.
  • Patent Document 5 discloses a technique for easily opening an opening seal portion of a pillow type package.
  • the opening seal portion is formed so as to be an oblique seal orthogonal to the peeling line.
  • the both sides of the sheet at a position within 40 mm downward from the opening seal part are taken as the holding position O, and the part is picked and opened, so that the part with the low opening strength is increased. It can be opened toward the front and is easy to open.
  • Patent Document 1 Japanese Patent Laid-Open No. 2006-347587
  • Patent Document 2 Japanese Patent Laid-Open No. 2012-184032
  • Patent Document 3 Japanese Patent Laid-Open No. 2013-6616
  • Patent Document 4 Japanese Patent Laid-Open No. 2013-52919
  • Patent Document 5 Japanese Patent Laid-Open No. 2013-52919 2008-162664
  • the problem to be solved by the present invention is to provide a bag body having an easy-open structure that is easy to open without separating a part of the bag body as garbage. Furthermore, even if it is provided with a fastener so that it can be repeatedly opened and closed, it is to provide a bag body having an easy-open structure that is easy to open without separating a part of the bag body as garbage.
  • a bag body is a bag body for containing contents, and includes a linearly extending opening portion that seals the first sheet inner surface and the second sheet inner surface, An easy-to-open portion that is sealed by thermal welding and that is the starting point of opening is included, and the easy-to-open portion has an area density of the heat-welded portion per unit length along a line along which the opening portion extends. It is characterized by being made smaller than the area density of the heat-welded part per unit length at a position adjacent to the easy part.
  • the state of the contents accommodated in the bag is not limited to a solid or granular body, but may be a powder, a fluid, or the like, and the type of the contents is not limited.
  • the shape of the bag body is not limited, and may be a cylindrical shape, a planar shape, a gusset bag shape, or the like, and the number of sheets constituting the bag body is not limited.
  • the material of the bag body is preferably a resinous material or a resin-coated paper.
  • the opening part may be connected linearly to form a sealing part, may be connected in an annular shape, may extend along a straight line, may form a curved line, a bent line, and a back-sealed seal It may be the position of the part.
  • the position of the easy-to-open portion may be either the center position of the opening portion, the position separated from the end portion of the opening portion, or any position. Further, the heat-sealing of the opening portion may be performed by any of heat sealing, hot melt adhesive, and the like. When the content is food, it is preferable for hygiene to use a heat seal as a sealing means.
  • the opening portion means a portion provided along the opening of the bag body.
  • the welding of the opening part may be a spot-like welded part, a line-like welded part, or a welded part formed by mixing them.
  • the area density of the heat-welded portion per unit length along the line along which the unsealed portion extends is made smaller than the area density of the heat-welded portion per unit length at the adjacent position.
  • the change in the area density may be due to the change in the density of the heat-welded portion, that is, the number of welding points in the case of spot welding and the length and thickness in the case of linear welding.
  • the easy-opening structure in which the area density of the heat-welding part is reduced from both sides of the easy-opening part to the easy-opening part along the opening part is formed in steps from both sides of the easy-opening part,
  • the density of the part may be reduced, or the density of the heat welded part may be gradually reduced.
  • the easy-to-open structure may be provided on the entire opening part or may be provided on a part thereof.
  • the first sheet inner surface and the second sheet inner surface are separated from the position of the easy opening portion, and the opening portion is peeled off and opened.
  • the bag is not cut from the notch for opening, and a part of the bag is cut and not separated.
  • the bag according to the first aspect wherein the opening portion includes at least one continuous closing line along a line extending the opening portion. It is a feature.
  • the easy-opening portion includes at least one continuous closing line along the line along which the opening portion extends, so that the airtightness of the opening portion is maintained. As a result, the contents are not dampened during transfer and display by external moisture, and the quality of the contents is maintained.
  • the third invention of the present invention is the bag body of the second invention, characterized in that the closing line is provided on the side of accommodating the contents in the opening portion.
  • the closing line is provided on the side of accommodating the contents in the opening portion.
  • a fourth invention of the present invention is the bag body of the first to third inventions, wherein the back-sealed seal portion in which both edges of the first sheet inner surface and the second sheet inner surface are bonded is a back surface portion.
  • the bag is formed in a substantially central part of the bag, and the easy-to-open part is provided in the vicinity of the substantially central part.
  • both side edges of the bag body are bonded together to form a back-sealed seal portion.
  • a back sticking seal part is formed in the approximate center of the back part of a bag, and located in the outside of either the 1st sheet or the 2nd sheet, it can be used as a knob part. is there.
  • the fifth invention of the present invention is the bag body of the first to fourth inventions, characterized in that the opening portion is formed by being bent into a substantially U-shape.
  • the bag body can be formed into a cylindrical body having a large opening by folding the folding start point. Thereby, it becomes easy to take out the contents.
  • 6th invention of this invention is a bag body of 1st-5th invention, Comprising: A streaky convex part and a streaky recessed part are occluded by the contents accommodating part side of the said opening part, and a sealing part It is characterized by being equipped with a zipper.
  • the fastener may be closed or open. When the fastener is closed, the contents are not easily clogged, and if the fastener is open, the opening is easy to open.
  • the opening part is easily opened, it is possible to isolate the contents of the bag from the outside, and repeatedly seal and open while keeping moisture-sensitive contents in a good state. It is possible. Furthermore, if the fifth invention is applied to the fourth invention, it is possible to return the bent starting point and take out the contents so as not to be caught by the fastener.
  • it is suitable for a bag body in which powder or moist food is taken as a content and is repeatedly taken out without clogging the zipper. Even if the content is a granular material containing moisture, such as a wet sprinkle for rice, there is an advantageous effect that it can be repeatedly sealed and opened without clogging the fastener.
  • the seventh invention of the present invention is the bag body of the first to sixth inventions, characterized in that an open end portion that is opened is provided on the outer side of the opening portion.
  • the opening part of a bag body is peeled by picking and separating an open end part, and a bag body is opened.
  • the eighth invention of the present invention is the bag body of the first to seventh invention, comprising a protruding end on the outer side of the unsealing portion of each of the first sheet and the second sheet, Each of the protruding end portions is formed in a different shape.
  • a semicircular knob is adjacent to and formed at a different position at a substantially central position of the protruding end portion of each sheet, inward from the protruding end portion.
  • a knob may be formed by protruding in the direction. Further, the leading ends of the respective sheets may be formed in steps. The outer edge of the protruding end portion may be open or may be easily opened by a perforation. Since each projecting end is formed in a different shape, it becomes easier to pick the knob with the fingertips of both hands, and the first sheet and the second sheet of the unsealed part are separated on both sides. It becomes easy to open it.
  • the easy-to-open portion can be It is possible to avoid a situation in which the bag body is naturally opened by deformation, and the heat-sealed part of the easy-to-open part can be easily opened if even the closing line is picked and opened by the finger.
  • a folding origin is turned up, it is possible to make a bag body into a cylinder with a big opening. Thereby, it becomes easy to take out the contents.
  • the bag body can be sealed and isolated from the outside, and can be repeatedly sealed and opened. It is possible to take out the folding start point and take out the contents so as not to be caught by the fastener, and it is possible to take out the contents such as powder and damp food without clogging the fastener.
  • it is easy to pinch the sheet surfaces on both sides of the opening portion by providing an open end portion that is opened outward from the opening portion of the bag body, It becomes easy to open the bag.
  • each protrusion edge part is formed in the different shape, it becomes easy to pick the said knob
  • Explanatory drawing (Example 1) of the easy-open structure of the bag body provided with a back sticker seal part Explanatory drawing of structure for easy opening (Example 1)
  • Explanatory drawing (Example 2) of the bag body by which an easy-open structure is provided in a back sticker seal part Explanatory drawing of the easy-open structure of the bag body provided with a fastener
  • Explanatory drawing (Example 4) of the easy-opening structure of the bag body provided with the bent corner and the fastener Explanatory drawing of the bag body with which the open end part open
  • Explanatory drawing of the bag body by which a protrusion edge part is provided in the outward side of an opening part Example 6
  • the bag body from Example 1 to Example 6 includes a bag body including an easy-to-open structure provided with an easy-to-open portion having a small area density of the heat-welded portion that is the starting point of opening at the opening portion of the bag body. It is. In any of the embodiments, it is needless to say that the strength of the welding and the closing means are not limited for the closed portion of the bag body other than the opening portion.
  • the bag body 1 is provided with an opening 10 at the upper edge of the bag body 1, and the back side of the bag body 1 is provided with a back-sealed seal section 20.
  • the bag 1 is suitable for use in, for example, potato chips confectionery.
  • FIG. 1 is an explanatory view of the bag body 1 as viewed from the back side
  • FIG. 2 is an explanatory view of another example of the easy-to-open structure 40.
  • the bag body 1 is provided with a substantially linear opening portion 10 at the upper edge of the bag body 1, and an opening easy portion 30 that is the starting point of opening is provided at the approximate center of the opening portion 10.
  • the starting point of opening refers to a position where peeling of the opening portion 10 is started when the bag body 1 is opened.
  • a back-sealed seal portion 20 is provided in the approximate center of the back side of the bag body 1 (see FIG. 1).
  • the back-sealed seal portion 20 is formed by heat-sealing the inner surfaces of both end edges of the sheet body forming the bag body 1.
  • the opening part 10 is a heat seal composed of a closing line 11 and a dot-like heat seal 12.
  • the closing line 11 provided on the outer side of the opening portion 10 is located on the content accommodating portion 50 side so that the height of the opening portion 10 becomes the smallest from the both end portions 13 toward the opening easy portion 30. It is bent and formed in a substantially V shape. As a result, the bag body 1 is sealed, and foreign substances such as dust are prevented from being mixed. Further, since the linear closure line 11 is provided on the content container 50 side, the airtightness of the opening part 10 is maintained, and the easy opening part is deformed by the pressure inside the bag body 1, The situation where the bag 1 is naturally opened can be avoided.
  • the dot-shaped heat seals 12 are provided between the closed lines 11 provided inside and outside, and are formed so that the number thereof is gradually reduced from the both end portions 13 toward the easy-to-open portions 30.
  • the thickness, number, interval, shape, etc. of the closing line 11 and the size, number, interval, etc. of the dot-shaped heat seal 12 are not limited, and are adjusted according to the opening strength required for the easy opening portion. Just do it. In addition, you may provide the closing line 11 only in the content storage part side of a bag.
  • the opening strength required for opening the opening portion 10 can be adjusted by the closing line 11 and the dot heat seal 12.
  • the area density of the heat-welded part of the opening part 10 can be reduced by reducing the thickness of the closing line 11 or reducing the density of the dot-shaped heat seal 12.
  • the easy-to-open structure 40 with less force required for peeling the opening portion 10 per unit length than the adjacent positions is formed.
  • the number of dot-like heat seals 12 is gradually reduced from the both end portions 13 side of the opening portion 10 toward the center, and the area density of the heat-welded portion per unit length is small compared to the adjacent positions.
  • An easy portion 30 is formed.
  • the number of dot-like heat seals 12 is increased toward both sides of the opening part 10. Accordingly, the area density of the heat welded portion is gradually increased from the easy-to-open portion 30 toward both sides, the heat seal is gradually peeled from the easy-open portion 30 to both sides, and the bag body is not detached from the open portion 10. Is opened. In addition, since the contents storage portion 50 is not cut open at the time of opening, the important display portions 60 such as the cooking method display column, the component display column, the inquiry display column, and the campaign application column are not damaged.
  • the easy-open structure 40 may be provided in the whole opening part 10, and may be provided in one part.
  • the edge part of the opening part of a bag is shown with a dashed-dotted line, and the opening easy structure 40 in the opening part 10 is divided with a double wavy line, and the principal part is demonstrated.
  • the easy-open structure 40 is not limited to the example shown below that changes the density per unit length along the line along which the open portion extends.
  • FIG. 2 (A) is a diagram showing an easy-to-open structure 41 in which dot-like heat seals 12 are provided on both sides of the easy-to-open portion 30.
  • this easy-to-open structure 41 the number of dot-like heat seals 12 is reduced stepwise toward the easy-open portion 30, and the area density of the heat-welded portion per unit length along the line where the open portion extends is changed. ing.
  • the opening part 10 is not provided with the closing line 11, and the content accommodating part is not completely sealed.
  • This example is suitable for use in packaging bread that is not suitable for sealing, or for packaging items that do not require sealing.
  • the stepped shape may be bilaterally symmetric.
  • FIG. 2 (B) is a diagram showing an easy-to-open structure 42 provided with a closing line 11 along the opening 10 on the inner side of the dot-shaped heat seal 12.
  • the dot-shaped heat seal 12 on the outer side of the bag body is formed in a substantially V shape toward the inner side of the bag body, and the dot-shaped heat seal 12 is formed along the opening portion 10 on the inner side. Is provided.
  • the V shape may be symmetrical.
  • the number of dot-like heat seals 12 in the opening part 10 is gradually reduced toward the opening easy part 30 in a substantially V shape, and is along a line where the opening part extends compared to the adjacent position.
  • the area density of the heat-welded portion per unit length is reduced toward the easy-to-open portion 30.
  • the linear closure line 11 is provided in the inner side of the opening part 10, the situation where the opening easy part 30 deform
  • FIG. 2 (C) is a diagram showing an easy-to-open structure 43 in which the opening portion 10 includes a plurality of transverse linear heat seals 14 having different lengths from the closing line 11.
  • the linear heat seal 14 is gradually shortened toward the inner side of the bag body, and the area density of the heat-welded portion per unit length along the line in which the opened portion extends is adjacent to the position. As compared with the above, it is made small toward the easy-to-open portion 30.
  • the linear closure line 11 is provided in the outward side, it is suitable in the case of the content which needs airtightness.
  • FIG. 2 (D) is a diagram showing an easy-open structure 44 in which the closing line 11 is provided on both the outer side and the inner side of the opening portion 10.
  • the outer closing line 11 is formed to be bent in a substantially V shape toward the inner side of the bag body.
  • the inner closing line 11 is formed linearly along the opening 10.
  • a dot-like heat seal 12 is provided between the closed lines 11. As the number of dot-shaped heat seals 12 is gradually reduced toward the easy-opening portion 30, the area density of the heat-welded portion per unit length along the line along which the openable portion extends is reduced toward the easy-opening portion 30.
  • the opening strength has been changed. Since the closing line 11 is provided on both the outer side and the inner side of the opening part 10, opening the bag body of contents that need to be airtight and prevent foreign matters from being mixed in. It is preferable to apply to the part.
  • FIG. 2 (E) is a diagram showing an easy-to-open structure 45 provided with a plurality of longitudinal linear heat seals 15 having different lengths.
  • the linear heat seal 15 By reducing the length of the linear heat seal 15 per unit length along the line along which the opening portion extends toward the opening easy portion 30, the area density of the heat welded portion is changed, and the opening strength is changed. Yes.
  • the opening part 10 By allowing air to pass between the linear heat seals 15, it is suitably used for packaging contents that are not suitable for sealing.
  • the opening part 10 may be provided with a closing line 11 to seal the bag.
  • FIG. 2 (F) is a diagram showing an easy-to-open structure 46 composed of a plurality of longitudinal linear heat seals 16 having the same length and different intervals.
  • the interval between the linear heat seals 16 in the vertical direction is gradually increased toward the easy opening portion 30 along the line where the opening portion extends, so that the unit length is longer than the position where the easy opening portion 30 is adjacent.
  • the area density of the heat welded portion is reduced.
  • the opening part 10 may be provided with a closing line 11 to seal the bag.
  • FIG. 2 (G) is a diagram showing an easy-to-open structure 47 in which the lengths and the intervals are the same, and the thickness of the plurality of linear heat seals 17 in the vertical direction is changed.
  • the thickness of the linear heat seal 17 in the vertical direction is gradually reduced toward the easy-to-open portion 30, the area density of the heat-welded portion per unit length compared to the position where the easy-open portion 30 is adjacent.
  • the opening part 10 may be provided with a closing line 11 to seal the bag.
  • the material of the bag body provided with the easy-open structure described in FIG. 1 or FIG. 2 is not limited, and may be by any means such as cohesive peeling, delamination, and interface peeling.
  • cohesive peeling a sheet in which polypropylene and polyethylene are mixed so as to be easily opened may be used.
  • delamination a laminated film made of polypropylene or the like may be used.
  • interfacial peeling an easily adhesive resin such as EVA may be used.
  • Example 2 with reference to FIG. 3 in which a confectionery bread is housed in a bag body, a bag body 2 in which an opening portion 10 is provided on a back-sealed seal portion 20 of the bag body 2 extending in a cylindrical shape will be described (FIG. 3A (See the figure).
  • the easy-to-open portion 30 is provided at a position closer to one end portion 22 than the central portion 21 of the back-sealed seal portion 20.
  • the position where the easy-to-open portion 30 is provided is not limited, but the bag body 2 is not opened unnecessarily large by opening from the position close to the end side, and the cylindrical body
  • the end opening portion is also preferable in that it is easy to open.
  • the confectionery bread 51 To eat the confectionery bread 51, the confectionery bread 51 must be pulled out of the bag 2. However, since the confectionery bread 51 is damp, it was difficult to draw out due to friction with the inner surface of the bag body 2. Further, in the conventional heat seal, since the break line of the bag body is warped from the back-sticking seal portion 20 and the bag body is torn, it is difficult to open the bag body along the back-sticking seal portion 20. Therefore, it was necessary to pick out the confectionery bread directly with a finger, which was unsanitary.
  • the bag body 2 of Example 2 is suitable for a food or the like that is elongated and damp like the confectionery bread 51 and is difficult to be pulled out from the bag body.
  • Example 3 a bag body 3 in which three sides are sealed and one side is heat-sealed as an opening will be described with reference to FIG.
  • the upper edge 80 of the bag 3 is the opening part 10, and an opening easy structure 40 provided with the opening easy part 30 is provided, and a fastener 70 is provided on the inner side thereof.
  • the shape and the like of the fastener 70 are not limited as long as the line-shaped convex part and the line-shaped concave part are engaged and the bag body 3 can be repeatedly sealed and opened. Since the bag body 3 can be repeatedly sealed and opened, the contents are protected from insects, moisture, dust and the like. Therefore, it is suitable to be used for foods that cannot be eaten at one time, such as rice cake and flour.
  • Example 4 a bag body 4 in which a folded corner portion 18 is provided in the opening portion 10 of the bag body will be described with reference to FIG.
  • the opening portion 10 is provided with two bent corner portions 18 to form a substantially U-shaped opening portion.
  • a substantially U-shaped bent fastener 71 is provided on the inner side of the opening portion 10 along the opening portion 10 (see FIG. 5A).
  • the easy-open structure 40 is provided on the opening side of the bag body.
  • the content is a wet sheet 53
  • the bag body 4 is opened from the end side of the opening portion 10 that is substantially U-shaped from the opening easy portion 30, and is folded and opened at the starting point of the opening portion.
  • the smooth part 55 of the inner surface of the bag body 4 is used as the opening end part 56 which takes out the wet sheet 53 (refer FIG.5 (B) figure).
  • the bag body 4 according to the fourth embodiment is also suitable for flat-shaped contents such as a mask.
  • the opening portion 10 is folded outward from the fastener base end 72, and the inner surface of the bag body provided with the convex portion 73 and the concave portion 74 of the bent fastener 71 is folded outward (FIG. 5C). (See figure). Then, it is possible to sprinkle the sprinkling 57 outside with the sprinkling 57 not touching the convex portion 73 and the concave portion 74 of the bending fastener 71. Thereby, the bending fastener 71 is brought into close contact with the convex portion 73 and the concave portion 74 of the bending fastener 71 without being clogged. Further, foreign matters are not mixed in the bag body 4, and mold is prevented from being generated in the bag body 4.
  • the bag body 4 of Example 4 is also suitable for powdered materials such as wheat flour.
  • Example 5 a bag body 5 provided with an open end 90 on the outer side of the opening 10 will be described with reference to FIG.
  • the bag body 5 is a gusset bag having a bottom surface, and the opening portion 10 is provided with an easy opening structure 40 provided with an opening easy portion 30, and an open end 90 is provided on the outer side of the opening portion 10. Is provided.
  • the bag body 5 may be opened by picking the open end 90 with a finger and separating it.
  • the open end 90 on the outer side of the opening part 10 the top sheet 91 and the back sheet 92 can be easily picked and separated by the fingertips, and the bag body 5 can be easily opened. It becomes.
  • Example 6 with reference to FIG. 7, a bag body 6 is described in which a protruding end portion is provided on the outer side of the opening portion and the shape of the topsheet 101 and the backsheet 102 is different.
  • An opening portion 10 is provided on the upper edge side of the bag body 6, and a protruding end portion 100 is provided on the outer side of the opening portion 10.
  • a semicircular knob portion 103 is formed adjacent to and inward of the protruding end portion at a different position. Thereby, only one sheet surface of the bag body 6 can be easily picked.
  • the easy-to-open part 30 is peeled off and the bag body 6 is opened by picking the place where the knob 103 is provided with the fingertip 104 and separating the top sheet 101 and the back sheet 102.
  • the opening portion is provided on the upper edge of the bag body.
  • the present invention is not limited thereto, and the opening portion is provided on the lower edge or side edge of the bag body. Also good.
  • FIG. 2 various examples of the opening portion are shown, but it is needless to say that the present invention is not limited to these examples and can be modified without departing from the spirit of the present invention.
  • Example 6 an example of a bag body provided with a notch in the vicinity of the easy-to-open portion has been described.
  • the bag body may be overlapped on the top sheet and the back sheet so as to be stepped, and may be picked by a protruding tongue piece. You may form a momi part.
  • an example of a bag body sealed by heat sealing has been described.
  • the present invention is not limited to this, and a bag body sealed using an adhesive or the like may be used.
  • the embodiment disclosed this time should be considered as illustrative in all points and not restrictive.
  • the technical scope of the present invention is shown not by the above description but by the scope of the claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of the claims.
  • fasteners 71 ... bent fasteners, 72 ... Fastener base end, 73 ... Convex part, 74 ... Concave part, 80 ... Upper edge, 81 ... Both sides, 82 ... Lower edge, 90 ... Open end, 91, 101 ... Top sheet, 92, 102 ... Back sheet, 100 ... protruding end, 103 ... notch, 104 ... fingertip

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Abstract

La présente invention vise à fournir un sac doté d'une structure à ouverture facile, qui est facile à ouvrir sans séparer une partie du sac sous forme de déchet. Dans ce sac (1), la section d'ouverture scellable au niveau de laquelle la surface interne d'une première feuille est scellée à la surface interne d'une seconde feuille par thermoscellage, comprend une section (30) à ouverture facile. La section (30) à ouverture facile sert de point de départ pour l'ouverture scellable et la densité surfacique par longueur unitaire de la section thermoscellée dans la section (30) à ouverture facile est inférieure à celle des zones adjacentes à la section (30) à ouverture facile.
PCT/JP2013/065742 2013-06-06 2013-06-06 Sac WO2014196071A1 (fr)

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PCT/JP2013/065742 WO2014196071A1 (fr) 2013-06-06 2013-06-06 Sac

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WO2014196071A1 true WO2014196071A1 (fr) 2014-12-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016049978A (ja) * 2014-08-28 2016-04-11 株式会社川島製作所 易開封構造を備えた袋包装体及びそれを製造する包装機
JP7171111B1 (ja) * 2022-08-12 2022-11-15 株式会社Ｗ 冷凍食品保存用袋体およびその製造方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163288A (en) * 1962-02-09 1964-12-29 Astra Apotekarnes Kem Fab Package
JPS5623466A (en) * 1979-07-25 1981-03-05 Mitsubishi Plastics Ind Packed vessel having easy unsealing property
JPS61501842A (ja) * 1984-04-16 1986-08-28 マ−チン　アンドリユ−　マツグ 容易に開封及び再閉可能なパッケ−ジとその製造装置
JPS6238920Y2 (fr) * 1980-12-19 1987-10-03
DE3705591A1 (de) * 1987-02-21 1988-09-01 Sengewald Karl H Beutel aus thermoplastischer kunststoffolie
EP1081059A2 (fr) * 1999-09-04 2001-03-07 CFS GmbH Kempten Emballage, en particulier pour usage médical, et machine pour sa fabrication

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163288A (en) * 1962-02-09 1964-12-29 Astra Apotekarnes Kem Fab Package
JPS5623466A (en) * 1979-07-25 1981-03-05 Mitsubishi Plastics Ind Packed vessel having easy unsealing property
JPS6238920Y2 (fr) * 1980-12-19 1987-10-03
JPS61501842A (ja) * 1984-04-16 1986-08-28 マ−チン　アンドリユ−　マツグ 容易に開封及び再閉可能なパッケ−ジとその製造装置
DE3705591A1 (de) * 1987-02-21 1988-09-01 Sengewald Karl H Beutel aus thermoplastischer kunststoffolie
EP1081059A2 (fr) * 1999-09-04 2001-03-07 CFS GmbH Kempten Emballage, en particulier pour usage médical, et machine pour sa fabrication

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016049978A (ja) * 2014-08-28 2016-04-11 株式会社川島製作所 易開封構造を備えた袋包装体及びそれを製造する包装機
JP7171111B1 (ja) * 2022-08-12 2022-11-15 株式会社Ｗ 冷凍食品保存用袋体およびその製造方法
WO2024034510A1 (fr) * 2022-08-12 2024-02-15 株式会社Ｗ Corps de sac de conservation d'aliments congelés et son procédé de production

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