WO2017026122A1 - Sac d'emballage autoporteur - Google Patents

Sac d'emballage autoporteur Download PDF

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Publication number
WO2017026122A1
WO2017026122A1 PCT/JP2016/003683 JP2016003683W WO2017026122A1 WO 2017026122 A1 WO2017026122 A1 WO 2017026122A1 JP 2016003683 W JP2016003683 W JP 2016003683W WO 2017026122 A1 WO2017026122 A1 WO 2017026122A1
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WO
WIPO (PCT)
Prior art keywords
bag
sheet
bag bottom
seal portion
lower side
Prior art date
Application number
PCT/JP2016/003683
Other languages
English (en)
Japanese (ja)
Inventor
中島　篤志
Original Assignee
凸版印刷株式会社
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 凸版印刷株式会社 filed Critical 凸版印刷株式会社
Publication of WO2017026122A1 publication Critical patent/WO2017026122A1/fr

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Classifications

    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/06—Handles
    • B65D33/08—Hand holes

Definitions

  • the present invention relates to a self-supporting packaging bag having good self-supporting properties, in which a laminated synthetic resin sheet having a sealant layer on one side is heat-sealed at a required portion and has a spout stopper at an upper corner.
  • packaging bags have been conventionally proposed in which a required portion of a synthetic resin sheet is heat-sealed to accommodate a contained item, for example, a liquid.
  • a packaging bag that can be self-supporting with a wide bag bottom as a lower part of the bag body.
  • the packaging bag shown in Patent Document 1 is made of an application of pillow-type bag making, and a sheet of synthetic resin is formed into a cylindrical shape and the longitudinal sides of the sheet are connected to the bag body.
  • the bottom sides of the opposite sheets are heat-sealed by being overlapped on the back side of the bag and heat-sealed at the bottom of the bag, and overlapping so that the bag body is flat at the bottom of the bag body.
  • the sheet that wraps around the bag bottom from the bag front side and the bag back side to the bag bottom so that the lower part is heat sealed A wide bag bottom is formed by the wrapping sheet.
  • the sheet that wraps around from the front side of the bag and from the back side of the bag overlaps with the sheet on the bag bottom side of the bag side.
  • the base end of this triangular portion is heat-sealed and the excess portion is excised, so that the bottom of the bag can be made into a substantially rectangular shape and can stand on its own, and after filling the contents
  • the upper part of the bag body is flattened and the upper sides of the sheet are sealed by heat sealing.
  • one sheet is formed into a flat sleeve to perform heat sealing of a vertical seal, and a part is folded inward to form a gusset, and the lower side is heated in a linear shape.
  • the bottom of the bag is opened by filling to provide self-supporting property, and the upper side is heat-sealed and sealed.
  • patent document 3 it consists of an application of a pillow type bag making like the said patent document 1, Comprising: The base end of the triangular-shaped part which protrudes sideways in a bag bottom is heat-sealed, and an excess part A gusset-shaped packaging bag is shown in which a bag with a substantially rectangular bottom is shown in the bag, and a gusseted gusset is formed by folding each of the opposite sides of the bag in the sleeve-shaped bag body inward. It is shown.
  • JP 2001-328644 A Japanese Patent No. 3364165 JP 2002-308289 A Japanese Patent Laid-Open No. 08-026302
  • a vertical seal portion in which the sheet constituting the bag body is bonded to the front or back of the bag The seal portion extends to the bottom of the bag, and the vertical seal portion has a high rigidity so that it is difficult to bend. Even if filling is performed by opening the sheet, the bag bottom does not have a shape that spreads in a plane because an appropriate bend does not occur between the sheet having the sealing portion and the sheet serving as the bag bottom continuous with the sheet. It becomes a packaging bag that is difficult to stand on its own.
  • a packaging bag having a bottom gusset at the bottom of the bag and having a gusset on the side of the bag and a bottom gusset is considered, but in a packaging bag obtained by bonding synthetic resin sheets, the bottom There is a problem that leakage of stored items is likely to occur from the portion where the gusset overlaps the gusset on the side of the bag, or the drop impact property of the overlapped portion becomes extremely low and the bag is broken.
  • the present invention is provided at the center of the bag front and the back of the bag at the bag body while taking advantage of the fact that providing a gusset at the bag body makes it easier to form a flat spread on the bag bottom.
  • An object of the present invention is to provide a packaging bag having a self-supporting property provided with a bag bottom having a planar spread, so that the vertical seal does not extend to the bag bottom.
  • the present invention has been made in consideration of the above-mentioned problems, and is located on one bag side surface located on one bag side surface and one bag side surface located on the other bag side surface through one bag side surface from the bag front side.
  • a bag body portion is formed with one gusset sheet provided so as to be foldable, and a handle is attached to a side seal portion formed by heat-sealing the side side of the main body sheet and the side side of the gusset sheet in the bag body portion.
  • the upper portion of the bag body is provided with an upper side seal portion formed by heat-sealing along the upper side of the main body sheet opposed by folding in between the folded gusset sheet, and the one bag of the upper side seal portion
  • a bag top having a spout stopper is formed on the side surface
  • the lower part of the bag body is provided with a lower side seal part formed by heat-sealing along the lower side of the main body sheet opposed by folding in two with the folded gusset sheet interposed therebetween, and the bag centering on the lower side seal part Due to the separation between the front surface and the back surface of the bag, the main body sheet and the gusset sheet wrap around toward the lower seal portion side, and a bag bottom portion is formed that spreads in the direction in which the front surface of the bag and the back surface of the bag are separated from each other and the bag width direction.
  • the bag bottom side formed by heat-sealing the sheet on one side surface of the main body sheet of the bag bottom portion and the sheet on the bag bottom side of the main body sheet of the bag body portion on the one bag side surface side at the bag bottom portion It has a side seal part,
  • the bag bottom side seal portion is wide in the direction in which the bag front and bag back are separated, and one bag side surface stands with the wide bag bottom side seal portion side as a lower side,
  • the spout stopper is positioned above the side surface of the one bag that has stood up; Providing a self-supporting packaging bag characterized in that the side surface of the one bag and the spout plug above the side surface of the bag are arranged on the side opposite to the handle in the bag width direction, It solves the problem.
  • sticker part is a sheet
  • the bag bottom side seal portion is folded to the bag bottom side and bonded to the lower surface of the bag bottom portion, and the bag bottom portion including the bag bottom side seal portion in plan view Is preferably substantially rectangular.
  • the bag bottom side seal part is formed on the lower side of the bag body part on each of the bag front side and the bag back side of the bag body part on the one bag side surface. After heat-sealing the sheet portion to form a triangular seal portion, the portion other than the portion along the lower side of the one side of the bag in the triangular seal portion is cut off and sealed along the lower side of the one bag side The portion is formed in a band shape, and it is favorable that the shape of the bag bottom portion including the bag bottom side surface seal portion is substantially rectangular in plan view.
  • the bag bottom portion is provided with a tilt restraining means for making the one side of the bag substantially upright.
  • the tilt restraining means is the lower side seal part, and the inclination angle of the lower side seal part heat-sealed along the lower side of the main body sheet opposed by folding the folded gusset sheet in the height direction of the bag body part It is good that it becomes a right angle or an acute angle with respect to it.
  • the bag bottom is formed as a portion that expands in the plane direction, and the side surface of one bag on the side where the spout plug is located is in an upright state. When placed, it becomes a stable and self-supporting packaging bag, and the contents can be stored safely. And with a handle and a spout plug on the side opposite to the handle, when pouring the contents, it is easy and safe like a blow-molded container by tilting the handle with the hand It is possible to pour out the contents, and to provide a packaging bag that is easy to handle even with a large capacity.
  • the bottom side of one bag side is used as a sealing portion to increase the hardness and make the bag bottom portion substantially rectangular, so that the packaging bag is free standing. It becomes more stable.
  • a state in which the tilt prevention means is formed by heat-sealing the lower side of the bag body portion with the gusset sheet in between, a half length of the portion where the bag bottom side seal portion is obtained, and a half length of the gusset portion It is explanatory drawing which shows. It is explanatory drawing which shows the length of a bag bottom side seal
  • 1 is a self-supporting packaging bag, and the self-supporting packaging bag 1 is closed with the upper portion of the bag body 2 flattened across the bag width direction as shown in FIG.
  • a spout stopper 3 is attached to the bottom of the bag body 2, and the lower portion of the bag body 2 is closed in a substantially rectangular shape spreading in the plane direction. It is something that can be done.
  • the self-supporting packaging bag 1 is made of a synthetic resin sheet, except for the spout plug 3.
  • the synthetic resin sheet is a laminated sheet with a sealant layer on one side, and heat-seals the required part. It is made into a bottomed bag shape by pasting together.
  • the bag body 2 includes one main body sheet 7 positioned from the bag front surface 4 through one bag side surface 5 to the bag back surface 6 and the other bag surface 5 facing the one bag side surface 5 in the bag width direction. It consists of one gusset sheet 9 which is located on the side surface 8 and can be folded to the side surface 5 of one of the bags.
  • the main body sheet 7 and the gusset sheet 9 are both the same synthetic resin sheet, and the bag body portion 2 is formed by heat-sealing the opposite side portions of the main body sheet 7 and the gusset sheet 9.
  • Each of the side seal portions 10 with the side of the gusset sheet 9 bonded thereto by heat sealing is extended outward, and the side seal portions 10 are cut and cut as shown in FIG.
  • a handle 11 that can be handled is formed.
  • the bag upper portion 12 is formed with a bag upper portion 12 that is closed in a flat state as described above, and a gusset sheet 9 that is folded between two folded main body sheets 7 is disposed. Heat seal is performed along the opposite upper side of the main body sheet 7 in a state of being interposed, and the upper side seal part 13 is provided, and the spout plug 3 is provided in a part on the side of one bag side surface 5 before the heat sealing.
  • the bag upper portion 12 is formed so that the spout stopper 3 has the one side surface 5 side of the upper side seal portion 13.
  • heat sealing is performed after filling the packaging bag 1 with parts other than the part to which the spout stopper 3 is attached in the bag upper part 12.
  • a bag bottom portion 14 is formed which extends in the plane direction so that the self-standing packaging bag 1 can stand upright when placed on a flat surface such as a table or a shelf.
  • the bottom of the bag body 2 is closed by the bag bottom 14.
  • the bag bottom portion 14 includes a lower side seal portion 15 that is heat-sealed along the lower side of the main body sheet 7 that is folded in half with the folded gusset sheet 9 interposed therebetween.
  • the heat sealing for obtaining the lower side seal portion 15 can be performed simultaneously with the heat sealing for attaching the gusset sheet 9.
  • the inside of the bag body part 2 is expanded so that the space between the bag front face 4 and the bag back face 6 in the bag body part 2 is opened around the vertical plane passing through the position of the lower side seal portion 15.
  • the lower sheet portion 17 of the bag body 2 connected to the other bag side surface 8 of the gusset sheet 9 is also turned to the lower side seal portion 15.
  • the bag bottom 14 is formed in a substantially rectangular shape extending in the direction in which the bag front surface 4 and the bag back surface 6 are separated from each other and the bag width direction.
  • a bag bottom side seal portion 19 whose rigidity has been increased by heat sealing is widened in the direction along the separation direction of the bag front surface 4 and the bag back surface 6.
  • the one bag side surface 5 is erected with the wide bag bottom side seal portion 19 side as a lower side, and is substantially rectangular.
  • the bag bottom side seal portion 19 having a high rigidity of the bag bottom portion 14 is grounded, and the sheet portion 16, the sheet portion 17, and the sheet portion 18 on the other bag side surface 8 side are grounded stably and independently. To be.
  • the spout stopper 3 is positioned above one bag side surface 5, and the handle 11 is disposed on the opposite side in the bag width direction with respect to the spout stopper 3 and one bag side surface 5. It is possible to easily pour out the contents like a blow container by tilting so that the spout stopper 3 is at the bottom.
  • the bag bottom side seal portion 19 opens the bag front 4 and the bag back 6 when the bag bottom 14 is formed, so that the sheet portion 20 on the lower side of the bag body 2 on one bag side surface 5 As shown in FIG. 4, it overlaps with the sheet portions 16 and 17 on the lower side of the bag body 2 on each of the bag front surface 4 and the bag back surface 6, and the sheet portion 20 overlaps with the sheet portions 16 and 17.
  • the bag front surface 4 and the bag rear surface 6 are widened in the direction in which the bag front surface 4 and the bag rear surface 6 are separated as described above.
  • the bag bottom side seal part 19 made into the said substantially triangular shape is bend
  • the bag bottom part 14 containing this bag bottom side seal part 19 is included.
  • the planar view shape is substantially rectangular as described above.
  • the bag bottom side seal portion 19 is described as being superimposed on the lower surface of the bag bottom 14 while maintaining a substantially triangular shape.
  • the present invention is not limited to this example. Absent.
  • FIG. 5 shows another example, in which the sheet portion 20 is heat-sealed with the sheet portions 16 and 17 overlapped to form a triangular seal portion, and then one of the triangular seal portions is formed.
  • This bag bottom side seal part 19 can also be obtained by cutting out the part other than the part along the lower side of the bag side surface 5 and forming the seal part along the lower side of one bag side surface 5 in a strip shape.
  • the planar view shape of the bag bottom part 14 including the bag bottom side seal part 19 is made substantially rectangular as described above. In FIG.
  • the excision location is indicated by a one-dot chain line.
  • the triangular portion projects outwardly with a spout stopper and the bag body upper portion closed. The folding of the triangular portion on the bottom surface of the bag bottom is performed before the spout stopper is attached.
  • the bag bottom portion 14 is provided with a tilt restraining means 21 that keeps one bag side surface 5 in a substantially upright state so as not to tilt outward in the bag width direction.
  • the tilt restraining means 21 is composed of the lower side seal portion 15 in the bag width direction of the bag bottom portion 14 and passing through the center of the bag bottom portion 14 to reach the center of the bag bottom side seal portion 19. Then, as shown in FIG.
  • the height of the bag body 2 at the sealing position is obtained by making the inclination angle ⁇ with respect to the direction a right angle or an acute angle.
  • the height direction of the bag body 2 is indicated by an arrow.
  • the useful point that the bag bottom portion 14 is formed with the tilt prevention means 21 is as follows.
  • the bag upper portion 12 has a flat and flat shape along the bag width direction with respect to the bag bottom portion 14 having a substantially rectangular shape. Formed as an outwardly inclined surface in the direction.
  • the bag body portion 2 tends to swell, and when one bag side surface 5 that is inclined outwardly swells and becomes a rounded inclined surface in the bag longitudinal direction. There is a possibility that the inclination of the one side surface 5 of the bag 5 will increase and fall down.
  • the bag body 2 is provided with the tilt restraining means 21 composed of the lower seal portion 15 having a right angle or an acute angle with respect to the height direction of the bag body 2, and the bag body 2 is inclined with respect to the height direction. Even if the angle is opened, by providing the tilt restraining means 21 composed of the lower side seal portion 15 formed as a right angle, a self-standing packaging bag in which one bag side surface 5 is substantially upright is obtained, and preferably the tilt restraining means 21 is provided. Is formed of the lower side seal portion 15 formed with the inclination angle being an acute angle, whereby a self-supporting packaging bag having a high degree of standing of one of the bag side surfaces 5 is obtained. The goodness is improved.
  • Each side seal portion 10 provided with the handle 11 in the embodiment is joined on the upper side.
  • sticker part 10 will approach, and it will become easy to put one hand with respect to two handles.
  • the mutual joining of the side seal portions 10 is not necessarily required.
  • the bag bottom part 14 should just be a substantially rectangular shape in planar view. For example, if the length of the gusset portion formed by the gusset sheet 9 in the bag bottom portion 14 and the length of the bag bottom side seal portion 19 in the bag bottom portion 14 are the same length, the shape of the bag bottom portion 14 in plan view is substantially rectangular. Become.
  • the length of the gusset part is designed so that one hand can be handled on the pair of handles, it is assumed that a certain good length is ensured, and if the amount to be accommodated is secured in a range where one hand can be held, Even if the length of the gusset portion and the length of the bag bottom side seal portion are the same, the shape of the bag bottom portion in plan view is unlikely to be substantially square.
  • the side seal portion 10 having the handle 11 is present, so when the bag bottom portion 14 is substantially rectangular.
  • the center of gravity of the self-supporting packaging bag is biased toward the other bag side surface 8. In that case, by making the length of the bag bottom side seal portion 19 longer than the length of the gusset portion, the deviation of the center of gravity can be eliminated.
  • the length c in the height direction of the bag body portion in the flat state shown in FIGS. 6 and 7 is 400 mm
  • the half length a of the gusset portion is 50 mm
  • the bag bottom side seal portion is Eight types of packaging bags having different 1 ⁇ 2 lengths b were prepared and filled with 5 liters of water as a container. Then, eight kinds of packaging bags were placed in order to confirm and evaluate whether or not there was a problem in independence.
  • a preferable range as a relation between the length of the gusset portion and the length of the bag bottom side seal portion is a ⁇ b ⁇ 1.4a.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)

Abstract

Le but de la présente invention est de fournir un sac d'emballage qui est muni d'un fond de sac ayant une répartition plane et qui présente d'excellentes propriétés autoporteuses, en rendant facile la formation d'une répartition plane du fond du sac par la fourniture d'un soufflet sur une partie de corps de sac, disposé au centre de la face avant du sac ou au centre de la face arrière du sac, empêchant une jonction verticale d'atteindre le fond du sac. Pour atteindre ce but, une partie latérale scellée 19 au fond du sac est utilisée, celle-ci étant obtenue par thermocollage d'une feuille sur une surface latérale 5 du sac et d'une feuille sur la partie de fond du sac 14, côte à côte, sur la surface latérale 5 côté partie de fond du sac 14. La partie latérale scellée 19 au fond du sac est large dans le sens de séparation entre une face avant 4 du sac et une face arrière 6 du sac. La surface latérale 5 du sac coopère avec la surface de la partie latérale scellée 19 au fond du sac, servant de fond. Un obturateur de bec verseur 3 est disposé sur le côté supérieur de la surface latérale 5 du sac.
PCT/JP2016/003683 2015-08-11 2016-08-09 Sac d'emballage autoporteur WO2017026122A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-159084 2015-08-11
JP2015159084A JP6728593B2 (ja) 2015-08-11 2015-08-11 自立包装袋

Publications (1)

Publication Number Publication Date
WO2017026122A1 true WO2017026122A1 (fr) 2017-02-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/003683 WO2017026122A1 (fr) 2015-08-11 2016-08-09 Sac d'emballage autoporteur

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JP (1) JP6728593B2 (fr)
WO (1) WO2017026122A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6925178B2 (ja) 2017-06-22 2021-08-25 株式会社細川洋行 スパウト付包装袋及びその製造方法、並びに内容物入りスパウト付包装袋

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008143592A (ja) * 2006-12-13 2008-06-26 Kau Pack Kk 自立袋
WO2012090536A1 (fr) * 2010-12-29 2012-07-05 株式会社フジシールインターナショナル Récipient à poche
JP2013043661A (ja) * 2011-08-23 2013-03-04 Kyodo Printing Co Ltd 包装袋及びそれを用いた包装体
US20140294323A1 (en) * 2002-03-26 2014-10-02 Mark Steele Side Access Package

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140294323A1 (en) * 2002-03-26 2014-10-02 Mark Steele Side Access Package
JP2008143592A (ja) * 2006-12-13 2008-06-26 Kau Pack Kk 自立袋
WO2012090536A1 (fr) * 2010-12-29 2012-07-05 株式会社フジシールインターナショナル Récipient à poche
JP2013043661A (ja) * 2011-08-23 2013-03-04 Kyodo Printing Co Ltd 包装袋及びそれを用いた包装体

Also Published As

Publication number Publication date
JP2017036074A (ja) 2017-02-16
JP6728593B2 (ja) 2020-07-22

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