WO2022176476A1 - 包装袋、包装袋の製造方法、及びシート包装体 - Google Patents
包装袋、包装袋の製造方法、及びシート包装体 Download PDFInfo
- Publication number
- WO2022176476A1 WO2022176476A1 PCT/JP2022/001561 JP2022001561W WO2022176476A1 WO 2022176476 A1 WO2022176476 A1 WO 2022176476A1 JP 2022001561 W JP2022001561 W JP 2022001561W WO 2022176476 A1 WO2022176476 A1 WO 2022176476A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- packaging bag
- paper
- sheet
- less
- seal
- Prior art date
Links
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 262
- 238000004519 manufacturing process Methods 0.000 title claims description 22
- 229920005989 resin Polymers 0.000 claims abstract description 75
- 239000011347 resin Substances 0.000 claims abstract description 75
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 15
- 239000000123 paper Substances 0.000 claims description 139
- 238000007789 sealing Methods 0.000 claims description 32
- 238000010438 heat treatment Methods 0.000 claims description 30
- 229920000297 Rayon Polymers 0.000 claims description 15
- 239000002655 kraft paper Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 239000002964 rayon Substances 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 14
- 229920001684 low density polyethylene Polymers 0.000 claims description 12
- 239000004702 low-density polyethylene Substances 0.000 claims description 12
- 239000010410 layer Substances 0.000 description 115
- 239000000463 material Substances 0.000 description 38
- 238000012360 testing method Methods 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 14
- MIDXCONKKJTLDX-UHFFFAOYSA-N 3,5-dimethylcyclopentane-1,2-dione Chemical compound CC1CC(C)C(=O)C1=O MIDXCONKKJTLDX-UHFFFAOYSA-N 0.000 description 12
- 239000000853 adhesive Substances 0.000 description 12
- 230000001070 adhesive effect Effects 0.000 description 12
- 235000013736 caramel Nutrition 0.000 description 12
- 238000011156 evaluation Methods 0.000 description 11
- 238000005259 measurement Methods 0.000 description 11
- 239000000835 fiber Substances 0.000 description 10
- 239000011121 hardwood Substances 0.000 description 7
- 239000011122 softwood Substances 0.000 description 7
- 238000004804 winding Methods 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 5
- 229920001131 Pulp (paper) Polymers 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- BXKDSDJJOVIHMX-UHFFFAOYSA-N edrophonium chloride Chemical compound [Cl-].CC[N+](C)(C)C1=CC=CC(O)=C1 BXKDSDJJOVIHMX-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004049 embossing Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229920000092 linear low density polyethylene Polymers 0.000 description 2
- 239000004707 linear low-density polyethylene Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000010893 paper waste Substances 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 229920000426 Microplastic Polymers 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
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
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
-
- 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
- B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
- B65D75/06—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes
- B65D75/08—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes with the ends of the tube closed by folding
-
- 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
- B65D71/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material
- B65D71/06—Packaging elements holding or encircling completely or almost completely the bundle of articles, e.g. wrappers
- B65D71/063—Wrappers formed by one or more films or the like, e.g. nets
-
- 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
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles
-
- 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
- B65D2565/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D2565/38—Packaging materials of special type or form
- B65D2565/381—Details of packaging materials of special type or form
- B65D2565/382—Details of packaging materials of special type or form made of special paper
Definitions
- Sheet packages containing sheet rolls such as toilet paper are distributed in a state in which a plurality of sheet rolls are contained in a packaging bag made of resin film (for example, Patent Document 1).
- An object of the present invention is to provide a paper packaging bag that suppresses deterioration in packaging performance.
- FIG. 1 is a diagram showing a sheet package in which sheets are accommodated in a packaging bag according to an embodiment.
- FIG. 2 is a diagram showing sheets accommodated in a packaging bag. 3, 4, 5, 6, 7, and 8 show the sheet packaging body of FIG. , respectively, viewed from the gable side.
- a sheet package 100 is an example of a sheet package according to this embodiment, and includes a packaging bag 10 and a sheet roll 20 .
- the peripheral surface 21A of the sheet roll 20 faces the top surface 11, the bottom surface 12, the side surface 13, and the side surface 14 of the packaging bag 10, respectively, and part of the peripheral surface 21A is part of the peripheral surface 21A of the adjacent sheet roll 20.
- Two of the four sheet rolls 20 on the end surface 15 side of the packaging bag 10 have side surfaces 21B facing the end surface 15 of the packaging bag 10, and two on the end surface 16 side of the packaging bag 10.
- the side surface 21C of the sheet roll 20 faces the end surface 16 of the packaging bag 10. As shown in FIG.
- the dimension of the sheet roll 20 is not particularly limited, but the width dimension (roll width) L2 in the width direction (Y direction) of the long sheet 21 is preferably 85 mm or more and 400 mm or less, and the diameter direction (X direction or Z direction) (roll diameter) W2 is preferably 80 mm or more and 200 mm or less (see FIG. 2).
- the material of the long sheet 21 is not particularly limited, but for example, a sheet such as paper, nonwoven fabric or cloth can be used, preferably paper (paper sheet).
- a sheet such as paper, nonwoven fabric or cloth
- paper paper sheet
- base paper made mainly of pulp
- the pulp composition can be a known composition for paper sheets.
- the pulp content can be 50% by mass or more, preferably 90% by mass or more, and more preferably 100% by mass.
- the thickness of the long sheet 21 is not particularly limited, and the paper thickness measured under the environment of JIS P 8111 (1998) can be adopted.
- the paper thickness per two plies is 50 ⁇ m or more and 600 ⁇ m or less, preferably 60 ⁇ m or more and 500 ⁇ m or less, more preferably 130 ⁇ m or more and 400 ⁇ m or less.
- the long sheet 21 may be embossed.
- embossing can be performed by a known embossing method.
- the form of the hollow core 22 is not particularly limited.
- the hollow core 22 when the hollow core 22 is a paper tube, it may be composed of a single layer of cardboard or a plurality of layers of cardboard. A base paper made of cardboard that has been previously coated with an odorant may also be used.
- the method of winding the paper tube is not particularly limited, and may be, for example, flat winding or spiral winding (so-called spiral paper tube).
- the dimensions of the hollow core 22 are not particularly limited.
- the length of the hollow core 22 in the longitudinal direction (Y direction) is about the same as the width of the sheet roll 20 in the width direction (Y direction) (85 mm or more and 400 mm or less).
- the diameter dimension of the hollow core 22 in the radial direction (X direction or Z direction) is 33 mm or more and 50 mm or less, preferably 35 mm or more and 45 mm or less (see FIG. 2).
- the packaging bag 10 is an example of a packaging bag according to this embodiment.
- the packaging bag 10 has a paper layer 10A containing a paper component, and resin layers 10B and 10C containing a thermoplastic resin provided on both sides of the paper layer 10A (Fig. 9).
- the packaging bag 10 has a three-layer structure in which resin layers (resin layers 10B and 10C) are laminated on both the front and back surfaces of the paper layer 10A (FIG. 9).
- the material of the paper layer 10A that constitutes the packaging bag 10 is not particularly limited, but it can be made of kraft paper or rayon paper, for example.
- kraft paper is paper made from kraft pulp.
- Rayon paper is made by blending rayon fibers made by chemically synthesizing wood pulp or the like with kraft pulp. From the viewpoint of achieving both softness and strength of the packaging bag 10, the rayon paper preferably contains 20% or less by mass of rayon fiber.
- the material of the thermoplastic resin contained in the resin layers 10B and 10C that constitute the packaging bag 10 is not particularly limited, but low-density polyethylene is preferable.
- the low-density polyethylene may be either high-pressure low-density polyethylene (LDPE) or linear low-density polyethylene (L-LDPE).
- the basis weight of the packaging bag 10 is not limited, it is preferably 20 g/m 2 or more and 70 g/m 2 or less, more preferably 25 g/m 2 or more and 65 g/m 2 or less, and still more preferably 30 g/m 2 or more and 60 g. /m 2 or less.
- the basis weight is measured in accordance with JIS P 8124 (2011).
- the thickness of the packaging bag 10 is not limited, it is, for example, 25 ⁇ m or more and 105 ⁇ m or less, preferably 30 ⁇ m or more and 95 ⁇ m or less, more preferably 45 ⁇ m or more and 80 ⁇ m or less.
- the thickness measured in compliance with JIS P 8118 (2014) can be adopted.
- the tensile strength of the packaging bag 10 is not limited. m or less, more preferably 1.5 kN/m or more and 5 kN/m or less.
- the It is 0.3 kN/m or more and 2.3 kN/m or less.
- the tensile strength is measured according to the provisions of JIS P 8113 (2006).
- the tear strength of the packaging bag 10 is not limited, it is, for example, 70 mN or more and 350 mN or less, preferably 80 mN or more and 340 mN or less, more preferably 90 mN or more and 330 mN or less in the longitudinal direction (MD direction) of the fibers. In addition, it is 250 mN or more and 950 mN or less, preferably 280 mN or more and 930 mN or less, more preferably 300 mN or more and 920 mN or less in the lateral direction (CD direction). The tear strength is measured in accordance with JIS P 8116 (2000).
- the softness of the packaging bag 10 is not limited, but for example, the softness in the longitudinal direction (MD direction) of the fibers is 90 mN/100 mm or more and 800 mN/100 mm or less, preferably 110 mN/100 mm or more and 750 mN/100 mm or less, more preferably It is 130 mN/100 mm or more and 730 mN/100 mm or less.
- the packaging bag 10 has a top surface 11, a bottom surface 12, a side surface 13, a side surface 14, an end surface 15, and an end surface 16.
- the top surface 11 and the bottom surface 12 face each other in the vertical direction (Z direction)
- the side faces 13 and 14 face each other in the width direction (X direction)
- the end faces 15 and 16 face each other in the longitudinal direction. (Y direction).
- End surfaces 15 and 16 are continuous with top surface 11, bottom surface 12, side surface 13, and side surface 14 (FIGS. 1, 3 to 8).
- the dimensions of the packaging bag 10 are not particularly limited.
- the width W1 in the direction (X direction) is 160 mm or more and 400 mm or less, and the height H1 in the height direction (Z direction) is 160 mm or more and 400 mm or less.
- the dimensions of the packaging bag 10 indicate the dimensions when the four sheet rolls 20 are accommodated in the packaging bag 10 .
- At least one of the top surface 11, the bottom surface 12, the end surface 15, and the end surface 16 of the packaging bag 10 may be provided with an opening (not shown) for the packaging bag 10.
- Such an opening can be formed, for example, by forming a cleaving line such as a perforation and cleaving the cleaving line.
- the cut line for splitting indicates a cut line in which cuts and ties (uncut portions between two cuts) are alternately arranged, and when the tie breaks, the adjacent cuts become continuous cuts.
- the tearing score lines are cut, they preferably penetrate the paper layer 10A and the resin layers 10B and 10C of the packaging bag (see FIG. 9).
- the packaging bag 10 at least one of the top surface 11, the bottom surface 12, the side surface 13, the side surface 14, the end surface 15, and the end surface 16 of the packaging bag 10 may be provided with ventilation holes (not shown).
- the vent can function as an air hole for the packaging bag 10 .
- the number, shape, and size of the ventilation holes are arbitrary.
- the form of the vent hole is arbitrary, but it is preferable that the vent hole penetrates the paper layer 10A and the resin layers 10B and 10C of the packaging bag (see FIG. 9).
- the packaging bag 10 has a pair of seal portions 30, 40, 50 at both ends in the longitudinal direction (Y direction).
- the seal portions 30, 40 are formed as side seals on the end surfaces 15, 16 of the packaging bag 10 (FIGS. 1, 3 to 8).
- the seal portion 50 is formed as a bottom seal on the bottom surface 12 of the packaging bag 10 (Fig. 4).
- the sealing portions 30, 40, 50 may be of any form, and for example, the sealing portions 30, 40, 50 are heat-sealed.
- heat welding indicates that the packaging bag sheet is partially heated to weld the packaging bag sheets together.
- the seal portions 30, 40, 50 are heat-sealed while one of the resin layers 10B, 10C of the packaging bag 10 is disposed inside the packaging bag 10 (FIGS. 1, 4, 50). 7 to 9).
- the heating temperature in thermal welding is arbitrary, but is preferably adjusted to 120°C or higher and 180°C or lower, more preferably 130°C or higher and 170°C or lower, and still more preferably 140°C or higher and 160°C or lower.
- seal strength in heat welding is arbitrary, but is preferably adjusted to 0.2 kN/m or more and 0.5 kN/m, more preferably 0.21 kN/m or more and 0.49 kN/m, still more preferably 0 .22 kN/m or more and adjusted to 0.48 kN/m.
- seal strength indicates seal strength measured in accordance with JIS Z0238 (1998).
- the wrap pitch of the seal portions 30, 40, and 50 is not particularly limited, but can be, for example, 80 mm or more and 400 mm or less, preferably 100 mm or more and 300 mm or less, more preferably 160 mm or more and 200 mm or less. is.
- the wrap pitch of the seal portions 30 and 40 is the height direction (Z direction) of the adhesion area where the folded portion on the top surface 11 side and the folded portion on the bottom surface 12 side of the end surfaces 15 and 16 of the packaging bag 10 overlap. indicates the dimensions of In addition, the wrap pitch of the seal portion 50 indicates the dimension in the width direction (X direction) of the adhesion region where the longitudinal ends of the sheet for packaging bag overlap on the bottom surface 12 of the packaging bag 10 .
- the packaging bag 10 can be softened by having the resin layers 10B and 10C containing a thermoplastic resin provided on both sides of the paper layer 10A containing a paper component. can.
- the packaging bag 10 can be prevented from feeling stiff, and the packaging bag 10 can be provided with followability. Therefore, according to this embodiment, even when the material of the packaging bag 10 is changed (shifted) from resin to paper, it is possible to provide the packaging bag 10 that is resistant to tearing during manufacturing and transportation.
- the resin layers 10B and 10C provided on both sides of the paper layer 10A contain a thermoplastic resin, so that the resin layers 10B and 10C can be arranged both outside and inside the packaging bag 10. can be done.
- the resin layers 10B, 10C can function as adhesives (have an adhesive function) on both the outside and the inside of the packaging bag 10. Therefore, in this embodiment, even when the sheet roll 20 is caramel-wrapped, sealing is easy, and the seal portions 30, 40, and 50 are less likely to come off.
- the ratio of the paper component in the packaging bag 10 by setting the ratio of the paper component in the packaging bag 10 to 45% or more, even when the resin layers 10B and 10C function as an adhesive, the resin layer (resin layer 10B or resin layer 10C) is less likely to stick to the sheet roll 20 accommodated in the packaging bag 10 .
- the ratio of the paper component in the packaging bag 10 is 45% or more, so the environmental load can be suppressed.
- the strength of the packaging bag 10 can be maintained by forming the paper layer 10A from kraft paper or rayon paper.
- the thickness of each of the resin layers 10B and 10C provided on both sides of the paper layer is set to 5 ⁇ m or more and 40 ⁇ m or less, thereby maintaining the ratio of the paper component in the packaging bag to 45% or more. easier.
- low-density polyethylene is used as the thermoplastic resin contained in each of the resin layers 10B and 10C.
- the adhesion function of the resin layers 10B and 10C can be improved.
- the paper packaging bag for caramel-wrapping the sheet roll 20 has a vertical tear strength of 70 mN or more and 350 mN or less and a horizontal tear strength of 250 mN or more and 950 mN or less. , the flexibility and conformability of the caramel packaging bag 10 are improved. As a result, in the present embodiment, it is possible to provide the caramel packaging bag 10 that is resistant to breakage during manufacturing and transportation, is easy to seal, and is resistant to peeling of the seal portions 30, 40, and 50.
- the vertical softness is 90 mN/100 mm or more and 800 mN/100 mm or less
- the horizontal softness is 40 mN/100 mm or less.
- the tension is 100 mm or more and 330 mN/100 mm or less, the flexibility and conformability of the caramel packaging bag 10 are further improved.
- the present embodiment by forming the sheet package 100 in which the sheet roll 20 is accommodated in the packaging bag 10, the same effect as the packaging bag 10 described above can be obtained. That is, according to the present embodiment, even when the packaging bag 10 is made of paper instead of resin, it is possible to provide a sheet packaging body in which the packaging bag is less likely to tear during manufacturing or transportation.
- the resin layers 10B and 10C provided on both layers of the paper layer 10A are heated when the packaging bag 10 is sealed (or sealed), so that the melted resin layer Since 10B and 10C can function as an adhesive (has an adhesive function), the packaging bag 10 can be easily sealed even when the sheet roll 20 is caramel-wrapped, and the seal portions 30, 40, and 50 are difficult to peel off. is obtained.
- the present embodiment by setting the ratio of the paper component in the packaging bag 10 to 45% or more, even when the resin layers 10B and 10C function as adhesives, they are arranged inside the packaging bag 10.
- a sheet package 100 is obtained in which the resin layer (resin layer 10B or resin layer 10C) that has been wrapped is less likely to stick to the sheet roll 20 accommodated in the packaging bag 10 .
- the ratio of the paper component in the packaging bag 10 is 45% or more, the sheet packaging body 100 that suppresses the environmental load can be obtained.
- the seal strength is preferably adjusted to 0.2 kN/m or more and 0.5 kN/m, more preferably 0.21 kN/m or more and 0.49 kN/m, and still more preferably 0.22 kN/m. Adjust to 0.48 kN/m above.
- the steps used in the conventional method for manufacturing a packaging bag of resin film can be adopted.
- the heating temperature is set to 120° C. or higher and 180° C. or lower in the welding step of heat-sealing the seal portions 30, 40, and 50 of the packaging bag 10, so that the above-described Even when the material of the packaging bag is shifted from resin to paper, the packaging bag 10 with high sealing performance can be obtained.
- the sealing strength of the sealing portions 30, 40, 50 of the packaging bag 10 for caramel-wrapping the sheet roll 20 is 0.2 kN/m or more and 0.5 kN/m.
- a sheet package 100 in which four sheet rolls 20 were caramel-wrapped in a packaging bag 10 was prepared (FIGS. 1 to 8).
- the sheet roll 20 commercially available rolled toilet paper (manufactured by Daio Paper Co., Ltd., Elleair toilet tissue, 55 m, single, 138 g/roll) was used.
- the basis weight (basis weight) of the packaging bag 10 in the specimen was measured in accordance with JIS P 8124 (2011).
- the unit of basis weight is g/m 2 .
- Paper thickness The paper thickness (thickness) of the packaging bag 10 in the specimen was measured in accordance with JIS P 8118 (2014). The unit of thickness is ⁇ m.
- a tear strength tester (Elmendorf tear strength tester (digital display type) manufactured by Kumagai Riki Kogyo Co., Ltd.) is used in accordance with the provisions of JIS P 8116 (2000), and the fibers are The tear strength in machine direction (MD direction) and transverse direction (CD direction) was measured.
- the softness of the packaging bag 10 of the specimen was measured according to the handle o-meter method according to the JIS L 1096 E method.
- the test piece had a size of 100 mm ⁇ 100 mm and a clearance of 5 mm.
- the measurement was performed five times each in the front/longitudinal direction (MD direction) and the front/lateral direction (CD direction), and the average value of all 10 measurements was expressed in units of mN/100 mm.
- the softness was measured based on the handle-o-meter method according to the JIS L 1096 E method. However, the size of the test piece was 100 mm ⁇ 100 mm, and the clearance was 5 mm.
- Measurement of softness is carried out using a handle o-meter (manufactured by Kumagai Riki Kogyo Co., Ltd., a feel measuring instrument), measuring 5 times each in the vertical direction and the horizontal direction for 1 ply, and the average value of all 10 times is the decimal point. It is expressed in units of mN with one digit.
- Heat seal strength The heat seal strength of the packaging bag 10 of the specimen was confirmed. The heat seal strength was measured at 120°C, 140°C, 160°C and 180°C. The heat seal strength was measured using a load cell tensile tester (manufactured by A&D, Tensilon RTG-1210) and a thermal gradient tester (manufactured by Toyo Seiki, TYPE HG-100). A test piece with a width of 120 mm is folded inward in the longitudinal direction with the heat-sealed surface facing inward, and the test piece is sealed with a thermal tilt tester.
- the load is 1.0 kgf
- the time is 1.0 second
- the temperature is set at four levels of 120°C, 140°C, 160°C, and 180°C.
- the heat block consists of 5 blocks (5 blocks arranged side by side) each having a width of 1.0 cm and a length of 2.5 cm, and the load is evenly distributed.
- a test piece for heat seal strength measurement is taken from the heat-sealed test piece. The test piece was about 1.5 cm wide and 15 cm long, and included one heat block at the heat-sealed portion. Both ends of the test piece are set so that the chucking distance of the load cell tensile tester is set to 100 mm, and the heat-sealed portion is placed in the center of the test piece, and a tensile test is performed.
- Adhesiveness of side seal Adhesiveness of the side seals (seal portions 30, 40) was evaluated for the specimen. When the test piece was manually compressed from the top surface 11 and the bottom surface 12, the evaluation was ⁇ (good) if the side seals (seal portions 30 and 40) did not peel off, and ⁇ () if the side seals were torn. Slightly poor), and when the side seal did not adhere, it was evaluated as x (poor).
- Adhesion of bottom seal Adhesion of the bottom seal (seal portion 50) was evaluated for the specimen.
- the test specimen was manually compressed from the top surface 11 and the bottom surface 12, and evaluated as ⁇ (good) when the bottom seal (seal portion 50) did not peel off, ⁇ (slightly poor) when the bottom seal was broken, and the bottom When the seal did not adhere, it was evaluated as x (defective).
- [Material 1] A material with a three-layer structure in which rayon paper with a basis weight of 30 g/m 2 is used for the paper layer 10A, and low-density polyethylene with a basis weight of 10 g/m 2 and a thickness of 11 ⁇ m is used for the resin layers 10B and 10C (both sides of the paper layer 10A). 1 was constructed. Table 1 shows the properties of material 1 (paper components (ratio), basis weight, thickness, density, tensile strength, elongation, tear strength, softness, heat seal strength).
- a material 5 was constructed in the same manner as the material 2, except that the resin layer 10B (one side of the paper layer 10A) had a two-layer structure, and low-density polyethylene having a basis weight of 27 g/m 2 and a thickness of 30 ⁇ m was used for the resin layer 10B. . Properties of Material 5 are shown in Table 1.
- a material 6 was constructed in the same manner as the material 1 except that the packaging bag 10 was composed only of the paper layer 10A, and the paper layer 10A was made of unbleached kraft paper with a basis weight of 65 g/m 2 . Properties of material 6 are shown in Table 1.
- Example 1 Material 1 was used for packaging bag 10, and caramel packaging was carried out at a side seal heating temperature of 142°C, a bottom seal heating temperature of 110°C, and a sealing speed of 50 m/sec.
- Table 2 shows side seal adhesion, side seal roll adhesion, bottom seal adhesion, bottom seal roll adhesion, and tearing of the packaging bag.
- Example 7 It was produced and evaluated in the same manner as in Example 5 except that the heating temperature of the side seal was set to 161°C. Table 2 shows the results.
- Example 7 Measurement and evaluation were performed in the same manner as in Example 1, except that the material 6 was used for the packaging bag 10, the side seal heating temperature was 230°C, the bottom seal heating temperature was 250°C, and the sealing speed was 27 m/sec. Table 3 shows the results.
- the packaging bag for caramel-packing the sheet has a paper layer containing a paper component and a resin layer containing a thermoplastic resin provided on both sides of the paper layer, and the ratio of the paper component in the packaging bag is It can be seen that the use of a packaging bag having a moisture content of 45% or more can suppress deterioration in packaging performance.
- caramel packaging refers to a packaging mode in which a bottom seal is applied to a sheet for a packaging bag while a sheet roll is set, and then side seals are applied.
- the resin layers provided on both sides of the paper layer refer to resin layers laminated on both the front surface and the back surface of the paper layer.
- the packaging bag can be softened by having resin layers containing a thermoplastic resin provided on both sides of a paper layer containing a paper component.
- resin layers containing a thermoplastic resin provided on both sides of a paper layer containing a paper component.
- the ratio of the paper component in the packaging bag by setting the ratio of the paper component in the packaging bag to 45% or more, even when the resin layer functions as an adhesive, the resin layer disposed inside the packaging bag can be accommodated in the packaging bag. It is difficult to stick to the sheet that has been applied.
- the ratio of the paper component in the packaging bag since the ratio of the paper component in the packaging bag is 45% or more, it is possible to provide a sheet package with reduced environmental load.
- a third aspect of the present invention is a packaging bag in which the paper layer is made of kraft paper or rayon paper.
- kraft paper refers to paper made from kraft pulp.
- rayon paper refers to kraft pulp blended with rayon fibers made by chemically synthesizing wood pulp or the like. From the viewpoint of achieving both softness and strength of the packaging bag, the rayon paper preferably contains 20% or less by mass of rayon fiber.
- the strength of the packaging bag can be maintained by forming the paper layer with kraft paper or rayon paper.
- each resin layer provided on both sides of the paper layer by setting the thickness of each resin layer provided on both sides of the paper layer to 5 ⁇ m or more and 40 ⁇ m or less, it becomes easier to maintain the ratio of the paper component in the packaging bag at 45% or more. In addition, it is possible to maintain the adhesion function of the resin layer at the time of sealing the packaging bag while suppressing the feeling of stiffness of the packaging bag.
- a fifth aspect of the present invention is a packaging bag, wherein the thermoplastic resin is low-density polyethylene.
- the thermoplastic resin is low-density polyethylene.
- a sixth aspect of the present invention is a packaging bag having a vertical tear strength of 70 mN or more and 350 mN or less and a horizontal tear strength of 250 mN or more and 950 mN or less.
- tear strength refers to tear strength measured in accordance with JIS P 8116 (2000).
- the vertical direction is the direction in which the fibers forming the packaging bag flow
- the horizontal direction is the direction perpendicular to the direction in which the fibers forming the packaging bag flow.
- a caramel packaging bag for caramel-wrapping a sheet
- the vertical tear strength is 70 mN or more and 350 mN or less and the horizontal tear strength is 250 mN or more and 950 mN or less
- the flexibility of the caramel packaging bag performance and followability are improved.
- An eighth aspect of the present invention is a method for manufacturing a packaging bag according to any one of the first to seventh aspects, comprising a welding step of heat-sealing the sealing portion of the packaging bag, wherein the heating temperature in the welding step is is 120° C. or higher and 180° C. or lower.
- heat welding means heating a part of the packaging bag sheet to weld the parts of the packaging bag sheet together.
- a ninth aspect of the present invention is a method for manufacturing a packaging bag having a seal strength of 0.2 kN/m or more and 0.5 kN/m.
- seal strength indicates seal strength measured in accordance with JIS Z0238 (1998).
- a tenth aspect of the present invention is a sheet package including the packaging bag according to any one of the first to seventh aspects and a sheet housed in the packaging bag.
- the same effects as those of the above-described packaging bag can be obtained by constructing the sheet package in which the sheet is accommodated in the above-described packaging bag. That is, according to the tenth aspect, it is possible to provide a sheet package whose packaging bag is less likely to tear during manufacturing or transportation even when the packaging bag is shifted from resin to paper.
- the ratio of the paper component in the packaging bag by setting the ratio of the paper component in the packaging bag to 45% or more, even when the resin layer functions as an adhesive, the resin layer disposed inside the packaging bag can be accommodated in the packaging bag. It is possible to obtain a sheet package that is difficult to stick to the wrapped sheet.
- the ratio of the paper component in the packaging bag is 45% or more, a sheet package that suppresses the environmental load can be obtained.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wrappers (AREA)
- Bag Frames (AREA)
- Packages (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
Abstract
Description
本発明の実施の形態について、図面を参照しながら詳細に説明する。各図において、共通する部分は、同一の符号を付して説明を省略する場合がある。また、各図において、各部材の縮尺は実際とは異なる場合がある。なお、各図では、3軸方向(X方向、Y方向、Z方向)の3次元直交座標系を用い、包装袋の幅方向をX方向とし、長手方向をY方向とし、高さ方向(上下方向または厚み方向)をZ方向とする。
シートロール20は、本実施形態に係る包装袋に収容されるシートの一例である。シートロール20は、図1に示すように、包装袋10に4個収容されている。シートロール20は、図2に示すように、長尺シート21が中空コア22に巻回されて構成されている。なお、シートは、本実施形態のようなシートロールに限定されず、複数枚のシートが積層されたシート積層体でもよい。
包装袋10は、本実施形態に係る包装袋の一例である。包装袋10は、紙成分を含む紙層10Aと、紙層10Aの両面に設けられた熱可塑性樹脂を含む樹脂層10B、10Cとを有する(図9)。本実施形態では、包装袋10が、紙層10Aの表面及び裏面のいずれにも樹脂層(樹脂層10B、10C)が積層された3層構造を有する(図9)。
本実施形態に係る包装袋の製造方法は、上述の包装袋10を製造する方法である。具体的には、包装袋10のシール部30、40、50を熱溶着する溶着工程を有する。溶着工程では、加熱温度を120℃以上180℃以下、好ましくは130℃以上170℃以下、より好ましくは140℃以上160℃以下に調整して熱溶着が行われる。
試験体として、4つのシートロール20が包装袋10にキャラメル包装されたシート包装体100を用意した(図1~図8)。シートロール20は、市販のロール状のトイレットペーパー(大王製紙株式会社製、エリエールトイレットティシュー、55m、シングル、138g/ロール)を用いた。
試験体における包装袋10の米坪(坪量)を、JIS P 8124(2011)の規定に準拠して測定した。米坪の単位は、g/m2である。
試験体における包装袋10の紙厚(厚み)を、JIS P 8118(2014)の規定に準拠して測定した。厚みの単位は、μmである。
試験体における包装袋10の密度を、JIS P 8118(2014)の規定に準拠して測定した。密度の単位は、g/m3である。
試験体における包装袋10について、JIS P 8113(2006)の規定に準拠して、テンシロン万能試験機(A&D社製、RTG-1210)を使用し、縦方向(MD方向)と横方向(CD方向)の引張強度(mN)を測定した。
試験体における包装袋10について、JIS P 8113(2006)の規定に準拠して、テンシロン万能試験機(A&D社製、RTG-1210)を使用し、縦方向(MD方向)と横方向(CD方向)の伸び(%)を測定した。
試験体における包装袋10について、JIS P 8116(2000)の規定に準拠して、引裂強度試験機(熊谷理機工業社製、エルメンドルフ引裂度試験機(デジタル表示式))を使用し、繊維の縦方向(MD方向)と横方向(CD方向)の引裂強度を測定した。
試験体の包装袋10について、JIS L 1096 E法に準じたハンドルオメータ法に従ってソフトネスを測定した。試験片は100mm×100mmの大きさとし、クリアランスは5mmとした。測定は、表・縦方向(MD方向)、表・横方向(CD方向)の各々5回ずつ測定し、その全10回の平均値を、mN/100mmを単位として表した。なお、ソフトネスは、JIS L 1096 E法に準じたハンドルオメータ法に基づいて測定した。但し、試験片は100mm×100mmの大きさとし、クリアランスは5mmで実施した。ソフトネスの測定は、ハンドルオメータ(熊谷理機工業社製、手触り測定器)を用いて、1プライで縦方向、横方向の各々5回ずつ測定し、その全10回の平均値を小数点1桁とし、mNを単位として表した。
試験体の包装袋10について、ヒートシール強度を確認した。ヒートシール強度は、120℃、140℃、160℃、180℃についてそれぞれ測定した。ヒートシール強度の測定は、ロードセル引張試験器(A&D社製、テンシロンRTG-1210)、および熱傾斜試験機(東洋精機製、TYPE HG-100)を用いて、縦方向に長さ300mm、横方向に幅120mmの試験片を、ヒートシール面を内側にして縦方向の内側に折り、熱傾斜試験器で試験片をシールする。このとき、荷重は1.0kgf、時間は1.0秒、温度設定は120℃、140℃、160℃、180℃の4水準で試験をする。ヒートブロックは幅1.0cm、長さ2.5cmのブロックを5個(横並びで5連)で荷重は均等とする。ヒートシールした試験片からヒートシール強度測定用の試験片を採取する。試験片は幅1.5cm×長さ15cm程度としヒートシール部のヒートブロック1個分を含む。試験片の両端部を、ロードセル引張試験機のチャッキング間を100mmとして、試験片の中央部にヒートシール部が配置されるようにセットして引張試験を行う。
試験体の包装袋10について、紙層の比重と樹脂層の比重から、紙成分の比率(%)を算出した。
試験体について、サイドシール(シール部30、40)の接着性を評価した。評価は、試験体を天面11と底面12から手で圧縮させたときに、サイドシール(シール部30、40)が剥がれなかった場合は〇(良好)、サイドシールが破れた場合は△(やや不良)、サイドシールが接着しなかった場合は×(不良)、と評価した。
試験体について、サイドシール(シール部30、40)のロール付着性を評価した。評価は、サイドシール(シール部30、40)を剥がしたときにシートロール20が破れなかった場合は〇(良好)、シートロール20が包装袋10のサイドシールに接着した場合は△(やや不良)、シートロール20が包装袋のサイドシールに貼り付いて破れた場合は×(不良)、と評価した。
試験体について、ボトムシール(シール部50)の接着性を評価した。評価は、試験体を天面11と底面12から手で圧縮させ、ボトムシール(シール部50)が剥がれなかった場合は〇(良好)、ボトムシールが破れた場合は△(やや不良)、ボトムシールが接着しなかった場合は×(不良)、と評価した。
試験体について、ボトムシール(シール部50)のロール付着性を評価した。評価は、ボトムシール(シール部50)を剥がしたときにシートロール20が破れなかった場合は〇(良好)、シートロール20が包装袋10のボトムシールに接着した場合は△(やや不良)、シートロール20が包装袋のボトムシールに貼り付いて破れた場合は×(不良)、と評価した。
試験体を天面11と底面12から手で圧縮させ、包装袋10が破れるかを確認した。評価は、包装袋10が破れなかった場合は○(良好)、包装袋10は破れないが柔軟性がない場合は△(やや不良)、包装袋10が破れた場合は×(不良)、と評価した。
紙層10Aに坪量30g/m2のレーヨン紙を用い、樹脂層10B、10C(紙層10Aの両面)に坪量10g/m2、厚み11μmの低密度ポリエチレンを用いた3層構造の素材1を構成した。素材1の性状(紙成分(比率)、坪量、厚み、密度、引張強度、伸び、引裂強度、ソフトネス、ヒートシール強度)を、表1に示す。
紙層10Aに坪量30g/m2のクラフト紙を用い、樹脂層10B、10C(紙層10Aの両面)に坪量14g/m2、厚み15μmの低密度ポリエチレンを用いた以外は、素材1と同様に素材2を構成した。素材2の性状を、表1に示す。
紙層10Aに坪量20g/m2のレーヨン紙を用い、樹脂層10B(紙層10Aの片面)のみの2層構造とした以外は、素材1と同様に素材3を構成した。素材3の性状を、表1に示す。
樹脂層10B(紙層10Aの片面)のみの2層構造とし、樹脂層10Bに坪量18g/m2、厚み20μmの低密度ポリエチレンを用いた以外は、素材1と同様に素材4を構成した。素材4の性状を、表1に示す。
樹脂層10B(紙層10Aの片面)のみの2層構造とし、樹脂層10Bに坪量27g/m2、厚み30μmの低密度ポリエチレンを用いた以外は、素材2と同様に素材5を構成した。素材5の性状を、表1に示す。
包装袋10を紙層10Aのみで構成し、紙層10Aを坪量65g/m2で未晒しのクラフト紙を用いた以外は、素材1と同様に素材6を構成した。素材6の性状を、表1に示す。
包装袋10に素材1を用い、サイドシールの加熱温度を142℃、ボトムシールの加熱温度を110℃、シール速度50m/secで、キャラメル包装した。サイドシールの接着性、サイドシールのロール付着性、ボトムシールの接着性、ボトムシールのロール付着性、包装袋の破れを表2に示す。
サイドシールの加熱温度を147℃にした以外は、実施例1と同様に作製、評価した。結果を表2に示す。
サイドシールの加熱温度を152℃にした以外は、実施例1と同様に作製、評価した。結果を表2に示す。
サイドシールの加熱温度を157℃にした以外は、実施例1と同様に作製、評価した。結果を表2に示す。
包装袋10に素材2を用い、サイドシールの加熱温度を153℃、ボトムシールの加熱温度を120℃とした以外は、実施例1と同様に測定、評価した。結果を表2に示す。
サイドシールの加熱温度を157℃にした以外は、実施例5と同様に作製、評価した。結果を表2に示す。
サイドシールの加熱温度を161℃にした以外は、実施例5と同様に作製、評価した。結果を表2に示す。
包装袋10に素材3を用い、サイドシールの加熱温度を160℃、ボトムシールの加熱温度を115℃とした以外は、実施例1と同様に測定、評価した。結果を表3に示す。
サイドシールの加熱温度を165℃にした以外は、比較例1と同様に作製、評価した。結果を表3に示す。
包装袋10に素材4を用い、サイドシールの加熱温度を197℃、ボトムシールの加熱温度を205℃、シール速度47m/secとした以外は、実施例1と同様に測定、評価した。結果を表3に示す。
サイドシールの加熱温度を222℃、ボトムシールの加熱温度を222℃、シール速度49m/secとした以外は、比較例3と同様に測定、評価した。結果を表3に示す。
サイドシールの加熱温度を170℃、ボトムシールの加熱温度を150℃とした以外は、比較例4と同様に測定、評価した。結果を表3に示す。
包装袋10に素材5を用い、サイドシールの加熱温度を170℃、ボトムシールの加熱温度を167℃、シール速度49m/secとした以外は、実施例1と同様に測定、評価した。結果を表3に示す。
包装袋10に素材6を用い、サイドシールの加熱温度を230℃、ボトムシールの加熱温度を250℃、シール速度27m/secとした以外は、実施例1と同様に測定、評価した。結果を表3に示す。
10 包装袋
10A 紙層
10B、10C 樹脂層
11 天面
12 底面
13、14 側面
15、16 妻面
20 シートロール
21 長尺シート
21A 周面
21B、21C 側面
22 中空コア
30、40 シール部(サイドシール)
50 シール部(ボトムシール)
L1 長さ
L2 ロール幅
W1 幅
W2 ロール径
H1 高さ
Claims (10)
- シートをキャラメル包装する包装袋であって、
紙成分を含む紙層と、
前記紙層の両面に設けられた熱可塑性樹脂を含む樹脂層と、を有し、
前記包装袋における前記紙成分の比率が45%以上である、
包装袋。 - 前記紙層の坪量が10g/m2以上40g/m2以下である、
請求項1に記載の包装袋。 - 前記紙層がクラフト紙またはレーヨン紙で形成されている、
請求項1または2に記載の包装袋。 - 前記樹脂層の一層あたりの厚みが5μm以上40μm以下である、
請求項1乃至3のいずれか一項に記載の包装袋。 - 前記熱可塑性樹脂が低密度ポリエチレンである、
請求項1乃至4のいずれか一項に記載の包装袋。 - 縦方向の引裂強度が70mN以上350mN以下であり、
横方向の引裂強度が250mN以上950mN以下である、
請求項1乃至5のいずれか一項に記載の包装袋。 - 縦方向のソフトネスが90mN/100mm以上800mN/100mm以下であり、
横方向のソフトネスが40mN/100mm以上330mN/100mm以下である、
請求項1乃至6のいずれか一項に記載の包装袋。 - 請求項1乃至7のいずれか一項に記載の包装袋の製造方法であって、
前記包装袋のシール部を熱溶着する溶着工程を有し、
前記溶着工程における加熱温度が120℃以上180℃以下である、
包装袋の製造方法。 - シール強度が0.2kN/m以上0.5kN/mである、
請求項8に記載の包装袋の製造方法。 - 請求項1乃至7のいずれか一項に記載の包装袋と、
前記包装袋に収容されたシートと、を有する、
シート包装体。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280013888.5A CN116867713A (zh) | 2021-02-22 | 2022-01-18 | 包装袋、包装袋的制造方法及片包装体 |
US18/256,755 US20240025609A1 (en) | 2021-02-22 | 2022-01-18 | Packaging bag, method of manufacturing packaging bag, and sheet package |
EP22755801.2A EP4296189A1 (en) | 2021-02-22 | 2022-01-18 | Packaging bag, method for producing packaging bag, and sheet package |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021-025872 | 2021-02-22 | ||
JP2021025872A JP2022127724A (ja) | 2021-02-22 | 2021-02-22 | 包装袋、包装袋の製造方法、及びシート包装体 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022176476A1 true WO2022176476A1 (ja) | 2022-08-25 |
Family
ID=82930837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2022/001561 WO2022176476A1 (ja) | 2021-02-22 | 2022-01-18 | 包装袋、包装袋の製造方法、及びシート包装体 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20240025609A1 (ja) |
EP (1) | EP4296189A1 (ja) |
JP (1) | JP2022127724A (ja) |
CN (1) | CN116867713A (ja) |
TW (1) | TW202237398A (ja) |
WO (1) | WO2022176476A1 (ja) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03109830U (ja) * | 1990-02-26 | 1991-11-12 | ||
JP2004338729A (ja) * | 2003-05-14 | 2004-12-02 | Mitsubishi Paper Mills Ltd | セパレートシートおよびその製造方法 |
JP2008007922A (ja) * | 2006-05-31 | 2008-01-17 | Daio Paper Corp | ヒートシール可能な包装紙及びヒートシール包装体 |
JP2014221648A (ja) * | 2013-05-13 | 2014-11-27 | 凸版印刷株式会社 | 倒立型口栓付き紙容器 |
JP2018090320A (ja) * | 2016-11-28 | 2018-06-14 | 大王製紙株式会社 | 紙タオル束包装体 |
JP2018090255A (ja) | 2016-11-30 | 2018-06-14 | 王子ホールディングス株式会社 | ロール製品包装体 |
JP2018090270A (ja) * | 2016-11-30 | 2018-06-14 | 日本製紙クレシア株式会社 | 衛生紙ロールパッケージ |
JP2021025872A (ja) | 2019-08-05 | 2021-02-22 | テラメックス株式会社 | 検体搬送装置 |
-
2021
- 2021-02-22 JP JP2021025872A patent/JP2022127724A/ja active Pending
-
2022
- 2022-01-18 US US18/256,755 patent/US20240025609A1/en active Pending
- 2022-01-18 WO PCT/JP2022/001561 patent/WO2022176476A1/ja active Application Filing
- 2022-01-18 EP EP22755801.2A patent/EP4296189A1/en active Pending
- 2022-01-18 CN CN202280013888.5A patent/CN116867713A/zh active Pending
- 2022-01-21 TW TW111102546A patent/TW202237398A/zh unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03109830U (ja) * | 1990-02-26 | 1991-11-12 | ||
JP2004338729A (ja) * | 2003-05-14 | 2004-12-02 | Mitsubishi Paper Mills Ltd | セパレートシートおよびその製造方法 |
JP2008007922A (ja) * | 2006-05-31 | 2008-01-17 | Daio Paper Corp | ヒートシール可能な包装紙及びヒートシール包装体 |
JP2014221648A (ja) * | 2013-05-13 | 2014-11-27 | 凸版印刷株式会社 | 倒立型口栓付き紙容器 |
JP2018090320A (ja) * | 2016-11-28 | 2018-06-14 | 大王製紙株式会社 | 紙タオル束包装体 |
JP2018090255A (ja) | 2016-11-30 | 2018-06-14 | 王子ホールディングス株式会社 | ロール製品包装体 |
JP2018090270A (ja) * | 2016-11-30 | 2018-06-14 | 日本製紙クレシア株式会社 | 衛生紙ロールパッケージ |
JP2021025872A (ja) | 2019-08-05 | 2021-02-22 | テラメックス株式会社 | 検体搬送装置 |
Also Published As
Publication number | Publication date |
---|---|
TW202237398A (zh) | 2022-10-01 |
CN116867713A (zh) | 2023-10-10 |
EP4296189A1 (en) | 2023-12-27 |
JP2022127724A (ja) | 2022-09-01 |
US20240025609A1 (en) | 2024-01-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2024026686A (ja) | トイレットロール包装体 | |
WO2022176476A1 (ja) | 包装袋、包装袋の製造方法、及びシート包装体 | |
WO2022149469A1 (ja) | 包装袋、包装袋の製造方法、及びシート包装体 | |
JP7470500B2 (ja) | 包装体 | |
JP7470501B2 (ja) | 包装体 | |
JP2023020432A (ja) | トイレットロール包装体 | |
WO2023188869A1 (ja) | 衛生薄葉紙包装体、及び衛生薄葉紙包装体の製造方法 | |
JP7406453B2 (ja) | 紙製品用包装体 | |
WO2023166989A1 (ja) | 包装袋、及びシート包装体 | |
JP2021123339A (ja) | 紙製品用包装体 | |
WO2023053526A1 (ja) | 包装袋、及びシート包装体 | |
JP7436410B2 (ja) | ロール包装体 | |
JP2022115638A (ja) | シート包装体 | |
WO2023188893A1 (ja) | 包装袋、及びシート包装体 | |
JP7402657B2 (ja) | 紙製品用包装体 | |
JP2023064578A (ja) | シート包装体 | |
JP7406401B2 (ja) | 紙製品用包装体 | |
JP7513536B2 (ja) | シート包装体 | |
JP2023048895A (ja) | トイレットロール包装体 | |
WO2023233890A1 (ja) | ロール状衛生薄葉紙用包装体 | |
JP2023050294A (ja) | 包装袋、及びシート包装体 | |
JP2023048900A (ja) | トイレットロール包装体 | |
JP2022107362A (ja) | 包装袋、包装袋の製造方法、及びシート包装体 | |
JP2023050296A (ja) | 包装袋、及びシート包装体 | |
JP2022057523A (ja) | 紙製品用包装体 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22755801 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18256755 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202280013888.5 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2022755801 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2022755801 Country of ref document: EP Effective date: 20230922 |