WO2022209909A1 - Corps d'emballage - Google Patents

Corps d'emballage Download PDF

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Publication number
WO2022209909A1
WO2022209909A1 PCT/JP2022/011996 JP2022011996W WO2022209909A1 WO 2022209909 A1 WO2022209909 A1 WO 2022209909A1 JP 2022011996 W JP2022011996 W JP 2022011996W WO 2022209909 A1 WO2022209909 A1 WO 2022209909A1
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WO
WIPO (PCT)
Prior art keywords
cut
width direction
bundle
edge
length
Prior art date
Application number
PCT/JP2022/011996
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English (en)
Japanese (ja)
Inventor
翔平 吉田
真一 藁科
Original Assignee
大王製紙株式会社
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 大王製紙株式会社 filed Critical 大王製紙株式会社
Publication of WO2022209909A1 publication Critical patent/WO2022209909A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/16—Paper towels; Toilet paper; Holders therefor
    • A47K10/18—Holders; Receptacles
    • A47K10/20—Holders; Receptacles for piled sheets
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
    • A47K10/32—Dispensers for paper towels or toilet-paper
    • A47K10/42—Dispensers for paper towels or toilet-paper dispensing from a store of single sheets, e.g. stacked
    • 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
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/02—Wrapped articles enclosed in rigid or semi-rigid containers
    • 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

Definitions

  • the present invention relates to a package in which a bundle of folded sanitary thin paper such as paper towels is wrapped in a flexible packaging film.
  • a packaging form of sanitary thin paper such as paper towels and facial tissues
  • a so-called pop-up type bundle in which one or more plies are folded and stacked, and when the top sheet is picked and pulled out, a part of the next sheet is pulled out.
  • a form of packaging with a resin-made flexible packaging film is known.
  • such sanitary thin paper packages generally used simple linear perforations for forming the outlet and formed a slit-shaped outlet on the top surface. .
  • the slit length is long, the slit-shaped outlet has a problem that the sheets will fall inside when the number of sheets remaining inside is reduced.
  • perforations for forming the outlet are arranged in an elongated annular shape extending in the longitudinal direction by a die-cutting technique such as die-cutting, so that the outlet has a substantially elliptical shape. It has been practiced to have a width in the depth direction as shown in Patent Documents 1 and 2 below. Furthermore, in recent years, in order to further improve the ease of taking out, the outlet has been made into a substantially gourd shape with widened ends in the width direction.
  • tearing of the perforation 150 is smooth and continuous at this end, particularly in the vicinity of the perforation 150e at the end of 105B.
  • an unintended tear 105P may occur at the end of the outlet 106.
  • the outlet forming portion 105 formed by annularly arranging the perforations 150 as the end portion in the width direction is widened in the depth direction Y, the range of the perforations becomes closer to the direction orthogonal to the tear-off direction. Being longer, this tearing is more likely to occur. Therefore, a substantially gourd-shaped outlet forming portion with widened ends is likely to cause a tear 105P.
  • the packaging film is a uniaxially stretched film stretched in a direction Y perpendicular to the longitudinal direction X of the outlet forming portion 105, such a tear 105P is more likely to occur.
  • the longitudinal direction (MD direction) of the packaging film is generally parallel to the longitudinal direction of the outlet forming part. is likely to occur.
  • the main object of the present invention is to improve the opening property by preventing the widthwise edge of the outlet from being torn when unsealed, and to improve the drawing property of sanitary thin paper, especially hard sanitary thin paper such as paper towels. To provide an excellent packaging body for film packaging.
  • the first means is A packaging body in which a bundle of sanitary thin paper is wrapped with a flexible resin packaging film, Having an outlet forming portion formed by arranging an easy-cleavage line in a ring on the upper surface, The easy-cleavage line forming the edge of at least one end in the width direction of the outlet-forming portion, A perforation in which a deformed cut portion having an end cut portion and a portion cut in a V shape at one end or both ends and a non-cut portion are alternately arranged.
  • a package characterized by:
  • the second means is According to the first means, the length of the end cut portion of the deformed cut portion is 0.5 to 2.5 mm, and the length of the non-cut portion between the deformed cut portions is 0.2 to 1.0 mm. It is a package.
  • the outlet forming portion includes a narrow portion extending in the width direction at the central portion in the depth direction, and a widened portion continuously extending from the end portion of the narrow portion toward the outside in the width direction and gradually widening as it separates from the narrow portion. and a curved convex portion that is continuous with the widened portion and bulges outward in the width direction, A portion constituting an edge of at least one curved convex portion of the easy-cleavage line has perforations in which deformed cut portions and non-cut portions are alternately arranged to form a V-shape at one end or both ends. It is a package according to the first or second means.
  • a fourth means is The package according to the third means, wherein 80% or more of the area forming the edge of the curved convex portion is perforations in which the deformed cut portion and the non-cut portion are alternately arranged.
  • a fifth means is The modified cut portion is the packaging body according to the third or fourth means, wherein the end portion positioned outward in the depth direction from the center in the depth direction of the narrow width portion has an end cut portion.
  • a sixth means is The packaging body according to the third or fourth means, wherein the edge of the edge cut portion faces the center in the width direction of the upper surface.
  • the seventh measure is The packaging body according to the third or fourth means, wherein the edge of the edge cut portion faces outward in the width direction of the upper surface.
  • the eighth means is Perforations in which deformed cut portions and non-cut portions are alternately arranged, only the ends of the end cut portions located at both ends in the depth direction of the upper surface face outward in the width direction of the upper surface, and the other end cut portions are oriented outward.
  • the ninth measure is The package according to the third or fourth means, wherein the length of the curved convex portion in the depth direction is 25 to 45 mm and the length of the protrusion in the width direction is 2.5 to 12.5 mm.
  • the tenth means is The outlet forming portion has a width direction length of 70% or more of the width direction length of the upper surface of the bundle, and a maximum length in the depth direction of 10 to 40% of the depth direction length of the upper surface of the bundle.
  • the length in the width direction of the narrow part is 50 to 70% of the length in the width direction of the upper surface of the bundle, and the length in the depth direction is 0.5 of the length in the depth direction of the upper surface of the bundle ⁇ 10%, the package according to the third to ninth means.
  • a film packaging package which is excellent in unsealability because the edge in the width direction of the outlet is difficult to tear when unsealed, and which is excellent in pulling out sanitary thin paper, particularly hard sanitary thin paper such as paper towels. be.
  • FIG. 3 is a perspective view for explaining a bundle of sanitary thin paper; It is a top view for demonstrating an outlet formation part. It is a perspective view for demonstrating the usage condition of the package which concerns on this invention. It is a partial enlarged view for explaining an outlet formation part (example). It is a figure for demonstrating the other example of an outlet formation part. (Outside) (Inside) (Mix) It is a figure for demonstrating another example of a shape of an outlet formation part.
  • FIG. 11 is a diagram for explaining another example of the outlet forming portion; It is a figure for demonstrating the conventional outlet formation part.
  • FIGS. 1 to 8 are embodiments of the present invention. It should be noted that directions such as up-down direction and left-right direction in the present invention and this specification are changed depending on the orientation of the package, and do not mean the absolute direction of the space. Further, rigidity is sometimes referred to as stiffness, rigidity, and stiffness of paper.
  • a packaging body 1 according to the present invention is a bundle 3 of sanitary thin paper sheets 2 such as paper towels folded and stacked, and wrapped in a flexible packaging film 4.
  • An outlet forming portion 5 is provided on an upper surface 4C. have.
  • the package 1 has a top surface 4C, a bottom surface 4D facing the top surface 4C, and long and short sides 4B and 4A positioned between the top surface 4C and the bottom surface 4D so as to approximate the shape of the bundle 3. It has a substantially hexahedral shape.
  • This gusset packaging is a pillow packaging with a gusset, in which a bundle 3 as an object to be packaged is wrapped in a cylindrical shape so that openings are formed at both ends in the longitudinal direction with a packaging film 4, and the bundles are overlapped in the winding direction.
  • the portion 4X to be connected is adhered by fusion processing or an adhesive at the bottom position of the bundle 3, etc., and the edge of the portion extending beyond the short side surface 3A of the bundle 3 is fusion-bonded from the top and bottom while forming a gusset.
  • the short side surface 4A is used as a sealing surface by bonding with an adhesive agent.
  • the sealing surface which is the short side surface 4A
  • the long side surface 4B which is the gusset
  • the packaging form of the package 1 is not limited.
  • a simple pillow packaging without a gusset may be used, and other suitable packaging forms such as overlap packaging, also called caramel packaging, in which short sides 4A are overlapped and fused together as shown in FIG. can be
  • the bundle 3 of sanitary thin paper 2 contained in the package 1 according to the present invention is a so-called pop-up bundle. As shown particularly in FIG. 2, this bundle 3 is such that the rectangular sanitary thin paper 2 is folded in two, and the folded pieces 2B of the other sanitary thin papers 2 located above and below are positioned on the folded inner side 2A.
  • a plurality of sanitary thin paper sheets 2 are folded and laminated, and has a pair of longitudinal side surfaces 3B where the folding edges 2C of each sanitary thin paper sheet 2 are arranged, a pair of short side surfaces 3A where the folding edges 2C are not arranged, and further the short side surfaces. It has a substantially rectangular parallelepiped shape having a pair of flat surfaces (upper and lower surfaces) 3C that are connected to 3A and longitudinal side surfaces 3B.
  • the number of sets of sanitary thin paper 2 constituting the bundle 3 is not limited, but can be 30 to 240 sets with one ply or multiple plies as one set.
  • the size of the bundle 3 is also not limited, but a bundle of 200 sets of sanitary thin paper is preferably 30 to 100 mm in height x 150 to 250 mm in the longitudinal direction (width) x 100 to 130 mm in the lateral direction (depth). . Further, when the height of the bundle is shorter than the length of the upper surface of the bundle in the depth direction, the pop-up failure improvement effect of the present invention is enhanced.
  • the filling rate of the bundle 3 in the package 1 is not limited as long as it does not interfere with the effects of the present invention, but the gap between the bundle and the packaging film is preferably in the range of 0 to 30 mm.
  • the bundle 3 may be wrapped in a slightly compressed state in the vertical direction with the wrapping film.
  • Each of the sanitary thin papers 2 constituting the bundle 3 has a single-layer structure of one sheet or a laminated structure of a plurality of sheets.
  • the number of plies is not limited, it is preferable to use one layer (1 ply) or two layers (2 plies).
  • the basis weight per ply is not limited, it is preferably 10 to 40 g/m 2 . Desirably, the mass per set is 1.0 to 2.5 g.
  • the sanitary thin paper with one or two plies of sheets having the above basis weight is particularly suitable for paper towels suitable for wiping hands after washing hands. Furthermore, it is desirable that the thickness of one set of this sanitary thin paper is 100 to 500 ⁇ m.
  • Sanitary thin paper with such a number of plies, a basis weight, and a paper thickness can be hygienically processed at the time of pop-up due to the configuration of the present invention, particularly the shape of the characteristic outlet forming portion having a narrow width portion, a widened portion, and a curved convex portion. It is highly effective in improving pop-up defects in which the thin paper falls without being pulled up, and erection defects in which the package does not stand up and falls down.
  • the basis weight is based on the measurement method of JIS P 8124 (1998).
  • the thickness of the paper was determined by fully conditioning the test piece under the conditions of JIS P 8111 (1998), and then using a dial thickness gauge (thickness measuring instrument) "PEACOCK G type" (manufactured by Ozaki Seisakusho Co., Ltd.) under the same conditions. and the value measured in the state of multiple plies using an equivalent machine.
  • the sanitary thin paper 2 according to the present invention is a dry type, not a so-called wet type impregnated with a chemical solution. Therefore, the bundle 3 formed by the sanitary thin paper 2 contains a lot of air.
  • a chemical solution such as a moisturizing component that increases moisture by absorbing moisture such as polyol represented by glycerin is added. good too.
  • the raw material pulp constituting the sanitary thin paper 2 is not limited.
  • a mixture of softwood-derived pulp such as NBKP and hardwood-derived pulp such as LBKP may be mentioned.
  • waste paper pulp may be blended, or waste paper pulp may be used alone.
  • the softwood-derived pulp is more than 50% in order to exhibit particularly excellent effects in sanitary thin papers such as paper towels that have strong stiffness and high rigidity.
  • dry tensile strength of the sanitary tissue paper 2 is not limited, those having a longitudinal direction of 1000-3000 cN/25 mm and a lateral direction of 250-1500 cN/25 mm are particularly suitable for the present invention. Dry tensile strength is measured according to JIS P8113 (1998). Examples of measuring devices include Minebea Co., Ltd.'s "Universal Tensile Compression Tester TG-200N" and its equivalent.
  • the outlet forming part 5 is formed by annularly arranging an easy tear line 50 on the upper surface 4C facing the uppermost sanitary thin paper 2 of the bundle 3 of the packaging film 4 .
  • annular in this specification does not mean that the shape is limited to a circular shape or an elliptical shape, but means a shape in which a closed region is formed.
  • Such an outlet forming portion 5 tears the easy-cleavage line 50, separates and removes the range surrounded by the easy-cleavage line 50, and draws out the sanitary thin paper 2 to the upper surface 4C of the package 1.
  • An outlet 6, which is an opening of the is formed.
  • the bundle 3 is of a pop-up type, when one sheet of sanitary thin paper 2 at the top of the bundle 3 is pulled out from the formed outlet, the next sanitary sheet located immediately below it is pulled out. A part of the thin paper comes to be exposed from the outlet.
  • the outlet forming portion 5 has the easy-cleavage lines 50 arranged in a ring, the outlet 6 formed by separating and removing the range surrounded by the easy-cleavage lines 50 is formed only in a straight line. It does not have a slit shape, but has a certain width in the depth direction.
  • Such outlet-forming portion 5 is formed by tearing off a range surrounded by easy-cleavage line 50 so as to continuously pull from one end portion 5A toward the other end portion 5B. Since the film in the range of can be separated and removed, it is excellent in operability at the time of opening.
  • the end located on the left side of the drawing is described as one end 5A, and the end located on the right side is described as the other end 5B. These can be replaced.
  • the package 1 of the form shown in FIGS. 1 to 5 has a substantially gourd-shaped outlet forming part 5, which is a particularly preferable shape.
  • the outlet forming portion 5 includes a narrow portion 51 extending in the width direction at the central portion in the depth direction of the upper surface 4C, and an end portion of the narrow portion 51 extending outward in the width direction of the bundle 3. It has a widened portion 52 that gradually widens with increasing distance from the narrowed portion 51 and a curved convex portion 53 that is continuous with the widened portion 52 and bulges outward in the width direction of the bundle 3 .
  • the widened portion 52 is arranged so that the easy tearing line 50 gradually increases in angle with respect to the width direction toward the outside in the width direction of the bundle 3 .
  • the easy-cleavage line 50 forming the edge of the widened portion 52 preferably has a taper angle ⁇ of 25 to 60 degrees with respect to the width direction.
  • the easy-cleavage line 50 is formed in a curved line and connected smoothly from the widened portion 52 to the curved convex portion 53 .
  • the easy-cleavage line 50 is arranged in this way, the easy-cleavage line 50 is easily cleaved smoothly from the widened portion 52 toward the curved convex portion 53 .
  • the outlet 6 formed by the outlet forming portion 5 has a generally trapezoidal shape in which the vicinity of the edge extending from the narrow portion 51 to the widened portion 52 is easily movable in the vertical direction. Therefore, as shown in FIG. 4, when a set of sanitary thin paper sheets 2 is pulled out from the stack 3, the edge strips 51A are deformed so as to be slightly rolled up in the direction in which they are pulled out. , the next exposed set of sanitary thin paper 2 is leaned against and supported.
  • the outlet 6 formed by the outlet forming portion 5 is such that the base portion 2R of the next sanitary thin paper, which is partially exposed from the outlet 6 following the sanitary thin paper pulled out from the bundle 3, is formed by the edge of the curved convex portion 53. It deforms so as to be wound along 6E, and easily deforms into a highly upright columnar shape. Furthermore, since the recessed portion 6H is formed between the widened portion 52 and the curved convex portion 53 of the outlet forming portion 5 when the outlet 6 is formed, the base of the next sanitary thin paper partly exposed from the outlet 6 is formed. By fitting the portion 2R into the recessed portion 6H, the erectability is enhanced.
  • the outlet forming portion 5 the pop-up failure due to the depression of the inside of the packaging film of the sanitary thin paper, which is likely to occur when the rigidity of the sanitary thin paper is high, is less likely to occur.
  • This action and effect is particularly effective in combination with the sanitary thin paper having the suitable basis weight and paper thickness as well as the suitable packaging film described later.
  • the outlet forming portion 5 according to the present invention may have a shape that does not have the widened portion 52 as shown in FIG.
  • the outlet-forming portion 5 may have a linear easy-cleavage line connected to the ring-shaped easy-cleavage line within a range that does not interfere with the effects of the present invention.
  • the length L1 is 70% or more of the length L2 in the width direction of the upper surface of the bundle 3, and the maximum length L3 in the depth direction of the entire outlet forming portion 5 is 10% or more of the length L4 in the depth direction of the upper surface of the bundle 3.
  • the length L5 in the width direction of the narrow portion is 50 to 70% of the length L2 in the width direction of the upper surface of the bundle 3
  • the length L6 in the depth direction of the narrow portion is the length of the bundle 3 is preferably 0.5 to 10% of the length L4 in the depth direction of the upper surface of the .
  • Such a shape of the outlet forming portion 5 is such that a curved convex portion 53 that is wide especially in the depth direction is formed.
  • the free edge piece 51A formed near the edge of the narrow portion 51 becomes wider and larger, so that the space between the narrow portions 51 can be widened when pulled out. Therefore, when the sanitary thin paper 2 is pulled out from the bundle 3, it can be taken out smoothly.
  • the sanitary thin paper 2 to be used is a highly rigid sanitary thin paper 2 such as a paper towel with the above basis weight and paper thickness, and the upper surface position of the package 1 is likely to be deformed when the sanitary thin paper 2 is pulled out, when the sanitary thin paper 2 is pulled out
  • the entire upper surface is less likely to be distorted and is easily maintained flat, and when the sanitary thin paper 2 is to be taken out one by one, it is particularly stable and easy to take out.
  • the substantially trapezoidal free edge piece 51A formed near the edge of the narrow portion 51 is wider and larger, and the deep recessed portion 6H is formed. Since the edge piece can be firmly supported and the base portion 2R of the sanitary thin paper 2 is supported, it is effectively prevented from falling.
  • the length of the edge of the curved convex portion 53 is increased, the sanitary thin paper 2 is gently wound along the edge of the curved convex portion 53. As a result, it becomes more orthostatic.
  • the length L3 of the curved convex portion 53 in the depth direction is specifically 25 to 45 mm, and the bulging length L7 in the width direction is 2.5 to 12.5 mm.
  • the flexible resin-made packaging film 4 constituting the exterior of the package 1 include polyethylene film, polypropylene film, polyester film, polyethylene terephthalate film, nylon film, vinylidene chloride film, and ethylene vinyl alcohol.
  • examples include monolayer films of copolymers, appropriately laminated laminate films containing these films, and gas barrier films obtained by subjecting these films to surface treatment such as aluminum vapor deposition.
  • Biomass films derived from plant materials such as sugarcane, potato (starch), and corn can also be used. The use of such biomass films is desirable from the viewpoint of environmental protection.
  • Polypropylene film and polyethylene film are particularly suitable.
  • the packaging film 4 may be a satin-finished film which is excellent in design and touch.
  • the melting point of the film is preferably 150° C. or lower. The lower the melting point of the packaging film, the lower the heat-sealing treatment can be performed, but the practical lower limit is 80°C.
  • Examples of polypropylene films include unstretched polypropylene films (CPP), and examples of polyethylene films include linear low-density polyethylene films (LLDPE), low-density polyethylene films (LDPE), and medium-density polyethylene films (MDPE).
  • ethylene vinyl alcohol copolymer resin film and polyethylene terephthalate resin film which have excellent fragrance retention properties, are desirable for packaging scented tissue paper and other scented items. Even if it is a multi-layer resin film in which a polyethylene resin film or a polypropylene resin film is laminated on one or both sides of an ethylene vinyl alcohol copolymer resin film or a polyethylene terephthalate resin film to enhance the heat-sealing property. good.
  • the outlet forming portion 5 has at least one edge in the width direction of the outlet forming portion 5 (the other end 5B in the illustrated example).
  • the portion 50P is a deformed cut portion 50D having a portion where the easy tear line 50 has an end cut portion 50e and one end or both ends are cut in a V shape, and an uncut portion 50U It has a characteristic perforation arranged alternately.
  • the deformed cut portion 50D and the non-cut portion 50U are alternately formed in a range of 80% or more of the portion constituting the edge of the curved convex portion 53.
  • the arranged portion is 50P.
  • this curved convex portion 53 preferably 90% or more, particularly preferably 95% or more, is a portion 50P in which the deformed cut portion 50D and the non-cut portion 50U are alternately arranged. good.
  • the entire range may be composed of easy-cleavage lines in which deformable cut portions 50D and non-cut portions 50U are alternately arranged.
  • 5 and 6 illustrate a form in which the portion constituting the edge of the curved convex portion 53 is a portion 50P in which the deformed cut portion 50D and the non-cut portion 50U are alternately arranged.
  • the present invention is not limited to this, and as shown in FIG. It may be one that is distributed to
  • the modified cut portion 50D is formed at one end or both ends of the main cut portion 50m on a straight or substantially straight gently curved line at a predetermined angle.
  • the end cut portion 50e is continuously arranged, and one end or both end portions have a V-shaped cut portion.
  • the deformed cut portion 50D includes a deformed cut portion 50D 1 formed in a doglegged shape at one end and a deformed cut portion 50D 2 formed in a dogleg shape at both ends. There may be As shown in FIG.
  • the end of one end cut portion 50e faces the outer side of the upper surface of the bundle 3 in the width direction, and the end of the other end cut portion 50e faces the central side of the upper surface of the bundle 3 in the width direction.
  • the deformed cut parts 50D in the portion where the deformed cut parts 50D and the non-cut parts 50U are alternately arranged as shown in FIGS. Only those whose ends face the outer side in the width direction of the upper surface of the bundle 3 may be arranged, or those whose ends face the central side in the width direction of the upper surface of the bundle 3 as shown in FIG. may be arranged. Furthermore, the ends of the end cut portions 50e may be directed outward in the width direction of the upper surface of the bundle 3 and may be directed toward the central side in the width direction of the upper surface of the bundle 3 together. Furthermore, as shown in FIG.
  • the outlet-forming portion 5 according to the present invention is finally cleaved in a general unsealing operation in which the range surrounded by the easy-cleavage line 50 is continuously pulled from the one end portion 5A toward the other end portion 5B.
  • a portion 50P in which a deformed cut portion 50D and a non-cut portion 50U are alternately arranged is provided at the end portion in the width direction (the other end portion 5B in the illustrated example), which is the portion that is most likely to tear.
  • the portion 50P in which the deformed cut portion 50D and the uncut portion 50U are alternately arranged generally, the area surrounded by the easy-cleavage line 50 is continuously pulled from the one end portion 5A toward the other end portion 5B.
  • the adjacent end cut portions 50e of the adjacent deformed cut portions 50D are both oriented outward in the width direction of the upper surface of the bundle 3, or toward the central side in the width direction of the upper surface of the bundle 3.
  • the extending directions of the adjacent end cut portions 50e intersect with the approaching direction, so the uncut portion 50U between them is easily cut off.
  • a substantially gourd-shaped shape having a narrow portion 51, a widened portion 52, and a curved convex portion 53 as shown in FIGS.
  • the range of the easy-cleavage line forming the edge portion of the curved convex portion 53 is long and is arranged along the depth direction.
  • the crossing angle with the direction is large, and the shape is such that the packaging film 4 is likely to be torn during the unsealing operation.
  • the portion 50P in which the deformed cut portion 50D and the uncut portion 50U are alternately arranged at the end portion the risk of tearing is significantly reduced. It is particularly effective in packaging forms such as pillow packaging and gusset packaging, in which the longitudinal direction (MD direction) of the packaging film 4 is parallel to the longitudinal direction of the outlet forming portion 5 and tearing is likely to occur. be.
  • the position of the end of the deformed cut portion 50D is shifted to the main cut portion by the end cut portion 50e. Since the position is slightly shifted inward or outward in the width direction from the extending direction of 50 m, when the outlet 6 is formed, the uncut portion 50U becomes slightly convex and has a serrated edge. For this reason, when drawing out a set of sanitary thin papers 2 from the bundle 3, the serrations are applied to the base portion 2R of the next set of sanitary thin papers 2, which is partially exposed from the take-out port following the taken out sanitary thin papers. The edge of the shape clamps the edge in the width direction of the sanitary thin paper 2 to enhance the prevention of falling.
  • the deformed cut portion 50D is positioned on the width direction extension line of the center C in the depth direction of the narrow portion 51.
  • the deformed cut portion has a deformed cut portion 50D2 having end cut portions 50e directed outward in the width direction at both ends, and further, the deformed cut portion located outward in the depth direction from the deformed cut portion 50D2
  • a deformed cut portion 50D 1 having an end cut portion directed outward in the width direction is provided only at an end portion located outward in the depth direction from the center C in the depth direction of the narrow portion 51 .
  • the deformed cut portion 50D is deformed.
  • the edge cut portions 50e of the adjacent modified cut portions 50D 1 and 50D 2 are present at positions on the outer side in the width direction preceding the edge having no edge cut portion 1 in the tensile direction. Therefore, when the non-cut portion 50U therebetween is torn during the opening operation, even if a minute tear occurs in the packaging film, the tear easily continues to the already torn end cut portion 50e immediately after that. , it becomes difficult to tear further.
  • the length ratio of the modified cut portion 50D and the uncut portion 50U at the end of the outlet forming portion 5 is not necessarily limited, but the length L8 of the modified cut portion 50D is not limited, but is preferably 5 mm or more and 20 mm or less. is preferably 7 mm or more and 13 mm or less. Also, the length L9 of the end cut portion 50e of the modified cut portion 50D is preferably 0.2 mm or more and 3.0 mm or less, preferably 0.5 mm or more and 2.5 mm or less. Furthermore, it is desirable that the length L11 of the uncut portion 50U between the deformed cut portions 50D is 0.2 mm or more and 3.0 mm or less, preferably 0.3 mm or more and 2.0 mm or less. Within this range, tearing is extremely difficult to occur between the deformed cut portions 50D, and the non-cut portions 50U are cut, so that the tearing progresses smoothly and continuously.
  • the angle ⁇ between the main cut portion 50m and the end cut portion 50e in the doglegged portion of the modified cut portion 50D should be 90° or more. It is preferably 100° or more, more preferably 120° or more.
  • the portions 50P in which the deformed cut portions 50D and the uncut portions 50U are alternately arranged are located at both ends of the outlet-forming portion 5. It can also be at one end only. If it is formed only on one side, the opposite end is, for example, as shown in FIG.
  • the range L10 up to the crossing position can be made a continuous cut portion.
  • a free piece 5T is formed in a range from one depth side to the outer side end at one end 5A of the outlet forming portion 5, and the free piece 5T is formed. It becomes easier to pick up and roll up, and the opening operation becomes easier.
  • the thickness L9 of the packaging film 4 may be selected as appropriate, but the thickness measured according to JIS P 8118 (1998) is preferably 25 to 75 ⁇ m. If the thickness is 25 to 75 ⁇ m, the effects of the present invention can be exhibited particularly effectively.
  • the thickness L9 is obtained by sufficiently adjusting the humidity of the measurement sample under the conditions of JIS P 8111 (1998), and then using a dial thickness gauge (thickness measuring instrument) "PEACOCK G-1A type" (manufactured by Ozaki Seisakusho Co., Ltd.) and its equivalent. Measure using
  • the softness of the packaging film 4 is smaller than the softness of the sanitary thin paper 2. If the softness of the packaging film 4 is smaller than the softness of the sanitary thin paper 2, the saw-toothed edge formed by the portion where the convex cut part and the non-cut part are aligned, especially the plurality of convex pieces, will cause the sanitary thin paper 2 to be pulled out. At times, the paper can be easily deformed so that it can be rolled up in the drawing direction, the drawing resistance is small, and the paper can be drawn out smoothly.
  • the portions other than the portion where the deformed cut portion 50D and the uncut portion 50U are alternately arranged are perforations and uncut portions (non-cut portions).
  • a slit cut or the like provided with a cut portion) can be used. However, it is not limited to this.
  • the type of perforation is not limited as long as the portion other than the portion where the deformed cut portion 50D and the non-cut portion 50U are alternately arranged is used as the perforation.
  • Examples include normal perforations in which the cut portion 50C is a straight line, micro perforations in which the cut portion is a hole, and zipper perforations in which the shape of the cut portion is Y-shaped, substantially L-shaped, or ⁇ -shaped. Preferred are normal perforations.
  • a slit cut is a portion obtained by cutting a film into a slit shape, and by having a non-cut portion, the non-cut portion and the cut portion are arranged alternately.
  • a slit cut having a non-cut portion may be simply referred to as a slit cut.
  • Slit cuts with perforations and non-cut parts may not be distinguished, but in the present invention, slit cuts are defined as slits when the cut part is less than 2 pitches, that is, when the cut part of the same length does not continue twice It's called cut. In general, the slit cut is formed so that the length of the cut portion is longer than the perforations.
  • the cut tie ratio of the slit cut having perforations and non-cut portions in portions other than the portions where the deformed cut portions 50D and the non-cut portions 50U are alternately arranged is an appropriate interval depending on the ease of tearing of the film used.
  • the length of the cut part is 0.8 mm or more and 20.0 mm or less
  • the length of the uncut part (tie part or uncut part) is appropriately from the range of 0.3 mm or more and 5.0 mm or less.
  • part or all of the uncut portion 50U of the easy tear line 50 according to the present invention faces the bundle 3 from the surface side, which is the surface that does not face the bundle 3, in the thickness direction of the packaging film 4. It is possible to form a half-cut portion that is cut to a predetermined depth range in the thickness direction, although it is not completely cut down to the back side, which is the side to be cut.
  • the uncut portion 50U By making the uncut portion 50U into a half-cut portion with a notch, the force required for tearing the packaging film 4 is reduced, and the tearing of the easy-cleavage lines 50 facilitates continuous and smooth tearing.
  • the end portion of the outlet forming portion 5, particularly the non-cut portion 50U between the deformed cut portions 50D located in the curved convex portion, may be a half-cut portion.
  • the depth of the cut in the half-cut portion is not limited, but is preferably 20% or more and 80% or less of the thickness of the packaging film.
  • the non-cut portion is configured with perforations that are not half-cut portions.
  • the edge of the narrow portion 51 is less likely to tear unintentionally.
  • the slit cut having perforations and non-cut portions including the portions where the cut portions 50C and the half-cut portions are alternately arranged, is formed at once by die cutting, for example. be able to.
  • Examples 1 to 4 of the present invention and Comparative Examples 1 and 2 were produced, and tests were conducted on the sinking of the sanitary thin paper and the tearing of the unsealing outlet.
  • the shape of the outlet forming portion of the package according to Examples 1 to 4 and Comparative Example 1 is a substantially gourd shape having a narrow portion, a wide portion, and a curved convex portion shown in FIGS. 1 to 5. .
  • the outlet forming portion of the package according to Comparative Example 2 is a simple linear perforation.
  • a bundle of 1-ply paper towels (trade name: Raku La Cook Kitchen Paper, basis weight: 20 g/m 2 , paper thickness: 220 ⁇ m) was folded up in a pop-up manner.
  • the packaging form according to each example is gusset packaging, and the stretching direction of the packaging film is a direction orthogonal to the width direction of the outlet forming portion.
  • the easy tearing line related to the outlet forming part is cleaved to form an outlet, and the paper towels constituting the bundle are pulled out from the outlet in order up to the last one. , counted the number of times the drop actually occurred.
  • Table 1 shows the dimensions of the outlet forming part, the ratio of the length in the depth direction and the length in the width direction of the upper surface of the bundle, and the test results in each example.
  • Comparative Example 1 the portion between the cut portions of the curved convex portion in Example 1 was not a half-cut portion but a conventional non-cut portion. Edge tearing occurred. Even with an easy-cleavage line that forms the edge of a very long curved convex portion as in the example, by alternately arranging a cut portion and a half-cut portion for that portion. , which was shown to prevent tearing at the edge of the outlet during the opening operation.
  • the number of depressions was confirmed to be 12 in Comparative Example 2, in which the outlet forming portion is a single perforation and the outlet is a slit.
  • the number of drops was 0 and no drop could be confirmed.
  • the ejection port having the shape of the ejection port forming portion having the narrow portion, the widened portion, and the curved convex portion is particularly excellent in preventing sagging.
  • the package according to the present invention has excellent opening properties because the edge in the width direction of the outlet is difficult to tear when opened, and is also excellent in drawing out sanitary thin paper, especially hard sanitary thin paper such as paper towels. It is a packaging body of film packaging.
  • L1 Width direction (longitudinal direction) length of the outlet forming part
  • L2 Width direction (longitudinal direction) length of the upper surface of the bundle
  • L3 Maximum depth direction (lateral direction) length of the outlet forming part
  • L4 length in the depth direction (lateral direction) of the upper surface of the bundle
  • L5 length in the width direction (longitudinal direction) of the narrow portion
  • L6 length in the depth direction (lateral direction) of the narrow portion
  • L7 L11: Length of non-cut portion between deformed cut portions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Packages (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

Le problème décrit par la présente invention est de fournir un corps d'emballage de film qui est destiné à un papier de papier hygiénique et qui assure une aptitude au clivage facile. La solution selon l'invention porte sur un corps d'emballage dans lequel un paquet de papier de papier hygiénique est emballé au moyen d'un film d'emballage en résine souple, et qui a une section de formation de fente qui est formée par disposition d'une ligne facilement clivable annulaire dans sa surface supérieure. La ligne facilement clivable constituant au moins une extrémité de la section de formation de fente dans le sens de la largeur est formée par des perforations dans lesquelles des parties non coupées et des parties coupées de façon irrégulière ayant chacune une partie de coupe d'extrémité dans laquelle une incision en forme de V est formée au niveau d'une ou des deux extrémités de la partie d'extrémité coupée sont agencées en alternance.
PCT/JP2022/011996 2021-03-31 2022-03-16 Corps d'emballage WO2022209909A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021060757A JP2022156859A (ja) 2021-03-31 2021-03-31 包装体
JP2021-060757 2021-03-31

Publications (1)

Publication Number Publication Date
WO2022209909A1 true WO2022209909A1 (fr) 2022-10-06

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PCT/JP2022/011996 WO2022209909A1 (fr) 2021-03-31 2022-03-16 Corps d'emballage

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JP (1) JP2022156859A (fr)
TW (1) TW202239363A (fr)
WO (1) WO2022209909A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07125771A (ja) * 1993-10-29 1995-05-16 Dainippon Printing Co Ltd 袋 体
JP2002104515A (ja) * 2000-09-29 2002-04-10 Dainippon Printing Co Ltd 包装容器
JP2003312750A (ja) * 2002-04-17 2003-11-06 Toppan Printing Co Ltd 湯切り機能付き蓋材
JP2005119751A (ja) * 2005-01-17 2005-05-12 Daio Paper Corp 家庭用薄葉紙収納箱
JP2006008218A (ja) * 2004-06-28 2006-01-12 Dainippon Printing Co Ltd ミシン目
JP2016124598A (ja) * 2015-01-06 2016-07-11 日本製紙クレシア株式会社 紙製品入りカートン
JP2018172145A (ja) * 2017-03-31 2018-11-08 大王製紙株式会社 フィルム包装ティシュー
JP2020001796A (ja) * 2018-06-29 2020-01-09 大王製紙株式会社 衛生薄葉紙包装体
WO2020110835A1 (fr) * 2018-11-29 2020-06-04 大王製紙株式会社 Corps de conditionnement de feuilles
WO2020262236A1 (fr) * 2019-06-28 2020-12-30 大王製紙株式会社 Conditionnement de mouchoirs en lot emballés sous film

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07125771A (ja) * 1993-10-29 1995-05-16 Dainippon Printing Co Ltd 袋 体
JP2002104515A (ja) * 2000-09-29 2002-04-10 Dainippon Printing Co Ltd 包装容器
JP2003312750A (ja) * 2002-04-17 2003-11-06 Toppan Printing Co Ltd 湯切り機能付き蓋材
JP2006008218A (ja) * 2004-06-28 2006-01-12 Dainippon Printing Co Ltd ミシン目
JP2005119751A (ja) * 2005-01-17 2005-05-12 Daio Paper Corp 家庭用薄葉紙収納箱
JP2016124598A (ja) * 2015-01-06 2016-07-11 日本製紙クレシア株式会社 紙製品入りカートン
JP2018172145A (ja) * 2017-03-31 2018-11-08 大王製紙株式会社 フィルム包装ティシュー
JP2020001796A (ja) * 2018-06-29 2020-01-09 大王製紙株式会社 衛生薄葉紙包装体
WO2020110835A1 (fr) * 2018-11-29 2020-06-04 大王製紙株式会社 Corps de conditionnement de feuilles
WO2020262236A1 (fr) * 2019-06-28 2020-12-30 大王製紙株式会社 Conditionnement de mouchoirs en lot emballés sous film

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TW202239363A (zh) 2022-10-16

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