US20220219876A1 - Packaging bag - Google Patents

Packaging bag Download PDF

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Publication number
US20220219876A1
US20220219876A1 US17/612,392 US202017612392A US2022219876A1 US 20220219876 A1 US20220219876 A1 US 20220219876A1 US 202017612392 A US202017612392 A US 202017612392A US 2022219876 A1 US2022219876 A1 US 2022219876A1
Authority
US
United States
Prior art keywords
packaged
packaging bag
widening
article
main unit
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US17/612,392
Other languages
English (en)
Inventor
Shintaro OBA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daio Paper Corp
Original Assignee
Daio Paper Corp
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 Daio Paper Corp filed Critical Daio Paper Corp
Assigned to DAIO PAPER CORPORATION reassignment DAIO PAPER CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: OBA, Shintaro
Publication of US20220219876A1 publication Critical patent/US20220219876A1/en
Abandoned legal-status Critical Current

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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
    • 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
    • B65D75/54—Cards, coupons, or other inserts or accessories
    • B65D75/56—Handles or other suspension means
    • B65D75/566—Hand holes or suspension apertures
    • 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
    • B65D75/5827—Tear-lines provided in a wall portion
    • B65D75/5833—Tear-lines provided in a wall portion for tearing out a portion of the wall
    • 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/08—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession
    • B65D83/0894—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession the articles being positioned relative to one another or to the container in a special way, e.g. for facilitating dispensing, without additional support

Definitions

  • the present invention relates to a packaging bag.
  • a packaging bag for packaging one or a plurality of film-packaged tissues in which a bundle of tissue paper is packaged with a resin flexible film includes a main unit section in which an article to be packaged is stored, and a handle section provided above the main unit section.
  • a finger hook hole for hooking a finger is formed in the handle section, and a purchaser or the like of the film-packaged tissue can carry the film-packaged tissue stored in the packaging bag by hooking a finger into the finger hook hole.
  • an opening forming portion for forming an opening port for taking out an article to be packaged is provided on an upper surface or a top surface portion (Patent Literature 1 below), but the opening forming portion for a toilet roll is not necessarily suitable for a film-packaged tissue having a shape and softness different from the toilet roll.
  • Patent Literature 1 JP 2004-058654 A
  • a main object of the present invention is to provide a packaging bag which is hardly opened erroneously when an article to be packaged is carried, can be easily opened to make it possible to take out contents, and can make an unused article to be packaged simply held and packaged in the packaging bag.
  • a packaging bag that is a gusset packaging bag including: a main unit section having a front surface, a back surface, and both side surfaces connecting the front surface and the back surface to each other, the main unit section storing an article to be packaged; and
  • a handle section formed on a top side of the main unit section by overlapping the front surface and the back surface with each other, wherein
  • At least one of the front surface and the back surface of the main unit section has an opening forming portion
  • the opening forming portion includes:
  • a base point portion formed in a region located above a position corresponding to an uppermost portion of the article to be packaged that is stored in the main unit section and below the handle section;
  • the second means is
  • the packaging bag according to the first means, wherein the base point portion is a region surrounded by perforations or slits.
  • the third means is
  • a connecting portion between the base point portion and the widening perforated portion is a cut portion.
  • the fourth means is
  • a connecting portion between the widening perforated portion and the extending perforated portion is an easily tearable portion that is more easily torn than another portion in the widening perforated portion and the extending perforated portion.
  • a fifth means is
  • the packaging bag according to the first means, wherein a boundary between the widening perforated portion and the extending perforated portion or the vicinity thereof is located at a position corresponding to an uppermost portion of an article to be packaged that is stored in the main unit section or in the vicinity thereof.
  • the sixth means is
  • the packaging bag according to the first means wherein the extending perforated portion is in a range of 5 to 20 mm from a side surface.
  • the present invention described above provides a packaging bag which is hardly opened erroneously when an article to be packaged is carried, can be easily opened to make it possible to take out contents, and can make an unused article to be packaged simply held and packaged in the packaging bag.
  • FIG. 1 is a front view of a packaging bag according to the present invention.
  • FIG. 2 is a cross-sectional view taken along line B-B in FIG. 1 .
  • FIG. 3 is a perspective view for explaining an outline of the packaging bag according to the present invention.
  • FIG. 4 is a perspective view for explaining the packaging bag according to the present invention and a film-packaged tissue assembly package using the packaging bag.
  • FIG. 5 is a perspective view for explaining an opening forming portion according to the present invention.
  • FIG. 6 is a perspective view for explaining an opening mode of the packaging bag according to the present invention.
  • FIG. 7 is a perspective view for explaining an example of a film-packaged tissue which is an article to be packaged according to the present invention.
  • FIG. 8 is a perspective view for explaining a structural example of the film-packaged tissue which is the article to be packaged according to the present invention.
  • FIG. 9 is a perspective view for explaining a tissue paper bundle.
  • FIGS. 1 to 9 illustrating an embodiment of the present invention.
  • the main unit section 44 includes a bag-shaped space, and is closed with bonding portions 41 and 42 bonded by thermal fusion or the like on top and bottom sides in a state where the article 1 to be packaged is contained.
  • the front surface 46 and the back surface 46 are thermally fused to seal an opening on the top surface side as a top surface side sealing portion 41 , the top surface side with respect to the top surface side sealing portion 41 is formed as the handle section 45 , then a bottom surface side opening 40 X of the gusset packaging bag 14 in a state where only the top surface side is sealed is expanded, an article to be packaged (in the illustrated mode, the film-packaged tissues 1 , 1 , . . . ) is inserted therefrom, and then the bottom surface side is also sealed by an appropriate sealing means such as thermal
  • the gusset packaging bag 14 has the side surfaces 43 and 43 , which are portions folded in a flat state and are also referred to as gussets or gusset portions, and surfaces connected to the side surfaces 43 .
  • Two surfaces connected to the side surfaces 43 and 43 are the front surface 46 and the back surface 46 . Note that the front surface 46 and the back surface 46 are relative to each other, and which surface is defined as the front surface is not limited.
  • a gusset packaging film constituting the gusset packaging bag 14 is a polypropylene film or a polyethylene film from viewpoints of cost and an opening property.
  • the film preferably has a melting point of 150° C. or lower. Note that a lower melting point of the packaging film makes a thermal fusion treatment possible at a lower temperature, and is more preferable in sealing and forming the handle section 45 . However, when the melting point is excessively low, the packaging film is more likely to be scratched or a hole is more likely to be formed in the packaging film particularly due to friction or the like with the article 1 to be packaged. Therefore, a substantial lower limit is 80° C.
  • polyethylene film examples include a linear low-density polyethylene film (LLDPE), a low-density polyethylene film (LDPE), and a medium-density polyethylene film (MDPE).
  • LLDPE linear low-density polyethylene film
  • MDPE medium-density polyethylene film
  • a linear low-density polyethylene film layer (LLDPE) having a density of 0.910 to 0.940 g/cm 3 and a melting point of 110 to 120° C. is particularly suitable from viewpoints of thermal fusibility and cost.
  • a single-layer film of a polyethylene terephthalate film, a nylon film, a polyvinylidene chloride film, or an ethylene vinyl alcohol copolymer, a laminate film obtained by appropriately stacking these films, or a gas barrier film obtained by subjecting any of these films to a surface treatment such as aluminum vapor deposition may be used.
  • a biomass film derived from a plant raw material such as sugar cane, potato (starch), or corn can also be used. It is also desirable to use a biomass film for the gusset packaging film from a viewpoint of environmental protection.
  • the thickness of the gusset packaging film constituting the gusset packaging bag 14 is appropriately selected in consideration of a relationship with the contained article 1 to be packaged in addition to circumstances peculiar to gusset packaging.
  • the circumstances peculiar to gusset packaging includes tearability that makes opening easy at the time of opening, abrasion resistance to the contained article to be packaged, and flexibility that prevents application of an excessive load to a finger when the gusset packaging bag 14 is carried with a finger through the finger hook hole 47 formed in the handle section 45 in addition to flexibility, cost, and thermal fusibility at the time of packaging.
  • a thickness measured in conform with JIS P 8118 (1998) is 10 to 65 ⁇ m
  • a softness measured in conform with a handle-o-meter method in accordance with JIS L 1096 (2010) E method is 5.0 to 50.0 cN.
  • the packaging bag 14 has a characteristic opening forming portion 5 that makes it difficult to erroneously open the packaging bag 14 when the article 1 to be packaged is carried by holding the handle section 45 , makes it possible to take out the article 1 to be packaged by easily opening the packaging bag 14 , and can simply make the unused article 1 to be packaged held and packaged in the packaging bag.
  • the opening forming portion 5 is formed on at least one of the front surface 46 and the back surface 46 of the main unit section 44 .
  • the opening forming portion 5 has a base point portion 51 formed in a region located above a position P corresponding to an uppermost portion of the article 1 to be packaged that is stored in the main unit section 44 and below the handle section 45 , a pair of widening perforated portions 52 and 52 having a gradually widening separation distance in a side surface direction from the base point portion 51 toward a bottom side opposite to the top side, and a pair of extending perforated portions 53 and 53 extending from the widening perforated portions 52 and 52 in a top-bottom direction.
  • An opening 50 having an openable and closable lid-like edge piece 55 is formed on at least one of the front surface 46 and the back surface 46 by sequentially tearing the widening perforated portions 52 and the extending perforated portions 53 from the base point portion 51 .
  • the base point portion 51 is in a central portion, preferably at a center, of the back surface 46 or the front surface 46 in the direction to the both sides. It is desirable that the base point portion 51 is at a position 5 to 15 mm away from a lower edge of the handle section 45 , that is, a lower edge of the top surface side sealing portion 41 .
  • the gusset packaging film is bonded by thermal fusion or the like and the rigidity is increased, and therefore when the base point portion 51 is set to a range of 5 to 15 mm close to the handle section 45 and is pushed with a finger, the gusset packaging film is not excessively stretched and is pushed in, and an opening base point can be easily formed.
  • the base point portion 51 include a slit and a perforation in which a tie portion (non-cut portion) is formed at least at a portion closest to a top surface.
  • the lengths of the cut portion and the tie portion in a case of forming a perforation are not particularly limited, but it is desirable that the cut portion has a length of 0.1 to 15 mm and the tie portion has a length of 0.1 to 15 mm. The perforations are easily torn continuously.
  • the perforations in the widening perforated portions 52 and 52 are torn continuously from the base point portion 51 to form an opening widening from the top side toward the bottom side in a substantially inverted V-shape.
  • the widening perforated portions 52 and 52 extend from the base point portion 51 to a point located at a distance of 40 to 60 mm on the packaging film from the top surface side sealing portion 41 serving as a lower edge of the handle section 45 to the bottom side and 5 to 20 mm from a boundary position E between the front surface 46 or the back surface 46 and the side surface 43 to a center side in a width direction.
  • Such widening perforated portions 52 and 52 are easily torn continuously.
  • the separation distance L 1 between bottom-side ends of the pair of widening perforated portions 52 and 52 is more than 90% and 98% or less of a length (width) L 2 of the article 1 to be packaged.
  • the article 1 to be packaged can be more easily taken out.
  • the article 1 to be packaged is a slightly deformable and flexible film-packaged tissue, the article 1 to be packaged can be easily taken out.
  • the extending perforated portions 53 and 53 are formed so as to be continuous with the bottom-side ends of the widening perforated portions 52 and 52 and extend from the bottom-side ends in the top-bottom direction. Therefore, the extending perforated portions 53 and 53 are also formed in a pair similarly to the widening perforated portions 52 and 52 . It is desirable that a distance between the pair of extending perforated portions 53 and 53 is constant as in the illustrated mode, but may widen or narrow toward the bottom side within a range not affecting a take-out property of a packaging object. In addition, the pair of extending perforations 53 and 53 does not necessarily have the same length as each other.
  • the extending perforated portions 53 and 53 are also arranged linearly like the widening perforated portions 52 and 52 . It is desirable that the extending perforated portions 53 and 53 are at desirable bottom side positions of the widening perforated portions 52 and 52 , that is, in a range of 5 to 20 mm from the side surface 43 . A wider opening is formed by the extending perforations 53 and 53 , and the article 1 to be packaged can be easily taken out.
  • the widening perforated portions 52 and 52 and the extending perforated portions 53 and 53 are easily torn sequentially from the base point portion 51 , and the opening 50 is easily formed.
  • the base point portion 51 is in a region located above the position P corresponding to an uppermost portion of the article 1 to be packaged that is stored in the main unit section 44 and below the handle section 45 . Therefore, in a case where the handle section 45 is gripped and lifted when the article 1 to be packaged is carried or in a state where the article 1 to be packaged is lifted, the base point portion 51 is hardly rubbed against the contained article 1 to be packaged.
  • the packaging bag 14 is hardly opened erroneously when the article 1 to be packaged is carried, and the packaging bag 14 can be easily opened to take out the article 1 to be packaged.
  • a top side portion with respect to bottom-side ends of the extending perforated portions 53 and 53 is present as a free lid-like edge piece 56 .
  • the lid-like edge piece 56 on remaining unused articles to be packaged, and further placing a part of the packaging bag 14 on a top side with respect to an uppermost position of the unused articles 1 to be packaged remaining in the bag on the lid-like edge piece 56 , the unused articles 1 to be packaged can be simply held and packaged in the packaging bag.
  • a connecting portion 61 between the base point portion 51 and the widening perforated portion 52 is a cut portion.
  • the perforations are smoothly torn from the base point portion 51 to the widening perforated portion 52 .
  • connecting portions 62 between the widening perforated portions 52 and 52 and the extending perforated portions 53 and 53 are easily tearable portions that are more easily torn than another portion of the widening perforated portions 52 and the extending perforated portions 53 . Since the widening perforated portions 52 and the extending perforated portions 53 extend in different directions, when the widening perforated portions 52 and the extending perforated portions 53 are sequentially torn from the base point portion 51 , a perforation tearing direction changes at the connecting portions 62 between the widening perforated portions 52 and the extending perforated portions 53 .
  • the easily tearable portion 62 can be, for example, a portion in which the connecting portion 62 is formed of only a cut portion or a portion in which the length of a cut portion of the perforation is longer than that in another portion.
  • the packaging bag 14 of the present invention is suitable for forming the film-packaged tissue 1 obtained by packaging the bundle 3 obtained by folding and stacking a plurality of sets of tissue paper 2 with the flexible packaging film 4 into an article to be packaged, and particularly arranging and gusset-packaging a plurality of the film-packaged tissues 1 to form a film-packaged tissue assembly package 10 (hereinafter, also referred to as an assembly package).
  • a film-packaged tissue assembly package 10 hereinafter, also referred to as an assembly package.
  • the film-packaged tissue 1 here is not a portable one called a pocket tissue, but is the film-packaged tissue 1 used as a stationary type having a mass heavier than that of such a portable one.
  • the bundle 3 may be overlap-packaged or pillow-packaged.
  • the overlap packaging is a packaging mode also referred to as caramel packaging or combined packaging, and is a packaging mode in which the bundle 3 is packaged with the packaging film 4 so as to be wrapped in a tubular shape such that openings 4 Z are formed at both ends in a longitudinal direction, a portion 4 X overlapping in the wrapping direction is bonded by a fusion treatment or an adhesive, a portion 4 Y extending beyond the bundle 3 is folded toward an end surface side of the bundle 3 from the vicinity of two opposing edges of a bundle end surface, at least tip edges of substantially triangular or substantially trapezoidal pieces formed at this time are overlapped and bonded by a fusion treatment or an adhesive to seal a tube opening 4 Z, thus forming an end surface 4 A.
  • the softness of the gusset packaging film constituting the gusset packaging bag 14 is lower than the softness of the packaging film 4 constituting the film-packaged tissue 1 .
  • the gusset packaging bag 14 having the handle section 45 on the top surface side when the handle section 45 is held, the gusset packaging bag 14 is pulled in the top-bottom direction. Therefore, pressure may be applied to the film-packaged tissues 1 , 1 . . . , which is an article to be contained at this time.
  • the softness of the gusset packaging film 14 by lowering the softness of the gusset packaging film 14 , the rectangular parallelepiped shape of the contained film-packaged tissue 1 is hardly deformed, and fullness is hardly reduced without pressing the bundle 3 inside.
  • the bundle 3 of tissue paper contained in the film-packaged tissue 1 is not particularly limited, but it is desirable that the bundle 3 is a pop-up type as illustrated in FIG. 9 .
  • the pop-up type bundle 3 is obtained by folding a sheet of the tissue paper 2 having a substantially rectangular shape of about 197 ⁇ 10 mm in length ⁇ 217 ⁇ 10 mm in width in half, and stacking a plurality of folded sheets of the tissue paper 2 such that folded pieces 2 B of other sheets of the tissue paper 2 located above and below the folded sheet are located in an inner side 2 A of the folded sheet. When one folded piece of an uppermost sheet is lifted upward, a folded piece 2 B of another sheet adjacent to the lifted sheet immediately below the lifted sheet is dragged upward and lifted.
  • Such a bundle 3 can be manufactured by a known multi-stand type or rotary type interfolder.
  • the pop-up type bundle 3 has a substantially rectangular parallelepiped shape having a pair of longitudinal side surfaces 3 B in which folded edges 2 C of sheets of the tissue paper 2 are lined up, a pair of short side surfaces 3 A in which the folded edges 2 C are not lined up, and a pair of flat surfaces (upper and lower surfaces) 3 C connected to the short side surfaces 3 A and the longitudinal side surfaces 3 B.
  • the number of sets of the tissue paper 2 constituting the bundle 3 is not limited, but is generally 120 to 240 as one set of 2 plies (two sheets stacked) or 3 plies (three sheets stacked).
  • the size of the bundle 3 is not necessarily limited, but a bundle of 150 sets of 2-ply tissue paper has a height of about 40 to 50 mm ⁇ 160 to 200 mm in a longitudinal direction (width) ⁇ 90 to 110 mm in a short direction (depth).
  • top-bottom direction and the up-down direction in the present invention and the present specification are appropriately changed depending on the directions of the packaging bag, the film-packaged tissue assembly package, and the film-packaged tissue, and do not mean absolute directions.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Bag Frames (AREA)
US17/612,392 2019-09-25 2020-08-07 Packaging bag Abandoned US20220219876A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2019174744A JP2021050026A (ja) 2019-09-25 2019-09-25 包装袋
JP2019-174744 2019-09-25
PCT/JP2020/030416 WO2021059781A1 (ja) 2019-09-25 2020-08-07 包装袋

Publications (1)

Publication Number Publication Date
US20220219876A1 true US20220219876A1 (en) 2022-07-14

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ID=75156954

Family Applications (1)

Application Number Title Priority Date Filing Date
US17/612,392 Abandoned US20220219876A1 (en) 2019-09-25 2020-08-07 Packaging bag

Country Status (5)

Country Link
US (1) US20220219876A1 (ja)
EP (1) EP3957575A4 (ja)
JP (1) JP2021050026A (ja)
CN (1) CN113891843B (ja)
WO (1) WO2021059781A1 (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009035323A (ja) * 2007-08-03 2009-02-19 Fukusuke Kogyo Co Ltd 包装袋

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JP3886226B2 (ja) * 1997-09-25 2007-02-28 大王製紙株式会社 開封取出線を有する紙おむつ包装袋
JP2004058654A (ja) 2002-06-07 2004-02-26 Canon Finetech Inc 被記録媒体
JP3929878B2 (ja) * 2002-11-15 2007-06-13 朋和産業株式会社 食品用の包装袋
JP3996044B2 (ja) * 2002-11-21 2007-10-24 大王製紙株式会社 携帯用ローション入りティッシュ
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WO2010062231A1 (en) * 2008-11-27 2010-06-03 Sca Hygiene Products Ab A packaging bag for absorbent articles
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JP6226461B2 (ja) * 2013-09-30 2017-11-08 大王製紙株式会社 キッチンペーパーロール包装体
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JP2009035323A (ja) * 2007-08-03 2009-02-19 Fukusuke Kogyo Co Ltd 包装袋

Also Published As

Publication number Publication date
EP3957575A1 (en) 2022-02-23
CN113891843B (zh) 2023-11-07
WO2021059781A1 (ja) 2021-04-01
EP3957575A4 (en) 2022-12-28
CN113891843A (zh) 2022-01-04
JP2021050026A (ja) 2021-04-01

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