WO2011070996A1 - ジッパーテープ、及び、ジッパーテープ付き包装袋 - Google Patents
ジッパーテープ、及び、ジッパーテープ付き包装袋 Download PDFInfo
- Publication number
- WO2011070996A1 WO2011070996A1 PCT/JP2010/071785 JP2010071785W WO2011070996A1 WO 2011070996 A1 WO2011070996 A1 WO 2011070996A1 JP 2010071785 W JP2010071785 W JP 2010071785W WO 2011070996 A1 WO2011070996 A1 WO 2011070996A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- zipper tape
- thin
- rib
- bag
- cut
- Prior art date
Links
- 238000004806 packaging method and process Methods 0.000 title claims description 61
- 229920005989 resin Polymers 0.000 claims description 23
- 239000011347 resin Substances 0.000 claims description 23
- 229920005672 polyolefin resin Polymers 0.000 claims description 13
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- 239000012790 adhesive layer Substances 0.000 claims description 6
- 239000002699 waste material Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 37
- 230000000052 comparative effect Effects 0.000 description 23
- 239000000463 material Substances 0.000 description 14
- 238000011156 evaluation Methods 0.000 description 12
- 238000002474 experimental method Methods 0.000 description 7
- -1 polypropylene Polymers 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 6
- 239000000470 constituent Substances 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229920000092 linear low density polyethylene Polymers 0.000 description 5
- 239000004707 linear low-density polyethylene Substances 0.000 description 5
- 229920001684 low density polyethylene Polymers 0.000 description 4
- 239000004702 low-density polyethylene Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000005022 packaging material Substances 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 229940079593 drug Drugs 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 229940127554 medical product Drugs 0.000 description 2
- 229920001526 metallocene linear low density polyethylene Polymers 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000002356 single layer Substances 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
- B65D33/00—Details of, or accessories for, sacks or bags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
- B65D33/2516—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener
- B65D33/2533—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener the slide fastener being located between the product compartment and the tamper indicating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
- B65D33/2541—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape
-
- 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
- B65D77/22—Details
- B65D77/30—Opening or contents-removing devices added or incorporated during filling or closing of containers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/25—Zipper or required component thereof
- Y10T24/2532—Zipper or required component thereof having interlocking surface with continuous cross section
- Y10T24/2534—Opposed interlocking surface having dissimilar cross section
Definitions
- the present invention relates to a zipper tape and a packaging bag with a zipper tape.
- a pair of belt-like zipper tapes that engage the male and female with respect to the opening of the bag body are arranged, and the occlusion state can be freely opened and closed.
- a packaging bag with zipper tape (hereinafter sometimes abbreviated as “packaging bag”) is applied.
- Such a packaging bag is sealed by sealing an opening.
- the sealing portion can be removed so as to tear the base film of the bag body from a notch or notch formed in the edge of the packaging bag.
- a packaging bag that anyone can easily open has been developed, and a packaging bag that can easily tear a base film and is excellent in easy opening (see, for example, Patent Documents 1 and 2). ).
- the fitting described in Patent Document 1 includes a resin layer having an easy-cutting function with a predetermined width that extends along the entire length of the tape portion bonded to the bag body.
- a resin different from the tape portion is used for this resin layer.
- the zipper tape described in Patent Document 2 includes a cut portion at one edge in the width direction of the male member and the female member. This cut part has a thin part thinner than the first thick part and the second thick part between the first thick part and the second thick part. With this configuration, the thin-walled portion is torn at the time of opening, and a sufficient gripping portion of the bag body for releasing the zipper tape can be secured.
- the cut region is wide. Therefore, depending on how to apply a force when tearing the resin layer, the cut line may meander and cannot be easily torn. In addition, when the resin layer is torn, it may be torn at two locations on both ends in the width direction of the resin layer. In that case, the resin layer becomes a fibrous or string-like cut residue, and the appearance is deteriorated or cut. There is a possibility that inconveniences such as debris hindering occlusion and a sufficient seal cannot be obtained. Similarly, the thin-walled portion of Patent Document 2 has a predetermined width dimension, so that the cut line may meander or may be torn at a plurality of locations to generate scraps.
- An object of the present invention is to provide a zipper tape that can be easily opened and a packaging bag with a zipper tape.
- the zipper tape of the present invention is a zipper tape in which a male member and a female member that can be engaged with each other are provided on a pair of band-shaped bases, and at least one end of the pair of band-shaped bases A pair of thick parts thicker than the thickness dimension of the band-shaped base part, a thin part provided between these thick parts and thinner than the thickness part of the thick part, and formed so as to protrude from the thin part. A cut portion having a rib having a thickness dimension substantially the same as the thickness of the meat portion is provided.
- the thickness dimension (D) of the rib is the sum of the height dimension protruding from the thin part of the rib and the thickness dimension of the thin part, and the thickness dimension (D) of the rib. It is preferable that ratio ((D) / (D2)) with respect to the thickness dimension (D2) of the said thick part is 0.8 or more and 1.2 or less. (3) The ratio ((D2) / (D1)) of the thickness dimension (D2) of the thick part to the thickness dimension (D1) of the thin part is preferably 3 or more and 12 or less. . (4) Moreover, it is preferable to have the contact bonding layer on one surface of the said strip
- the packaging bag with a zipper tape of the present invention is formed by applying the zipper tape according to any one of the present invention described above to the inner surface of the opening of the bag body having an opening capable of enclosing the inclusion.
- the base portion, the thick portion, and one surface of the rib are disposed in a bonded state.
- the zipper tape of the present invention since the zipper tape has the rib having substantially the same thickness as the thick portion, when the zipper tape is bonded to the bag body, the thick portion and the rib are bonded to the inner surface of the bag body. be able to. Therefore, when tearing and opening the packaging bag with a zipper tape, it is cut at the thin portion having a tensile strength smaller than that of the thick portion and the rib, so that the cut portion becomes one place and no cutting residue is generated. Moreover, since the cut line is positioned by the rib, the cut line does not meander and can be easily and easily torn.
- FIG. 1 The front view which shows the packaging bag with a zipper tape of embodiment which concerns on this invention.
- II-II sectional drawing of FIG. Sectional drawing which expands and shows the cut part of the said packaging bag with a zipper tape.
- the front view which expands and shows the notch part vicinity of the said packaging bag with a zipper tape.
- Sectional drawing which shows the packaging bag with a zipper tape of other embodiment.
- Sectional drawing which shows the packaging bag with a zipper tape which concerns on the comparative example 1.
- FIG. 1 is a front view showing a packaging bag with a zipper tape according to an embodiment of the present invention.
- 2 is a cross-sectional view taken along the line II-II in FIG.
- FIG. 3 is an enlarged cross-sectional view of the cut portion of the packaging bag with a zipper tape.
- a packaging bag 1 with a zipper tape of the present embodiment (hereinafter sometimes abbreviated as “packaging bag 1”) is bonded to a bag body 2 and an inner surface 211 ⁇ / b> A of the bag body 2.
- the bag body 2 is formed by overlapping a base film 21 serving as a packaging material, and includes a side seal portion 22 and a top seal portion 23 on the periphery thereof.
- the top seal portion 23 is formed by sealing the opening 24 into which the filled material of the bag body 2 is charged.
- the side seal portion 22 is formed with a V-shaped notch 25 as a tear start portion at an end portion on the top seal portion 23 side.
- the base film 21 is not limited to a single-layer film, and may be a laminated film having a structure in which a sealant layer 211 is laminated on a base material layer 212. Between the base material layer 212 and the sealant layer 211, depending on required performance. In addition, a laminated film layer having a structure in which a gas barrier layer, a light shielding layer, a strength improving layer and the like are laminated as an intermediate layer may be used.
- a biaxially stretched polypropylene film (OPP film), a biaxially stretched polyethylene terephthalate film (PET film), a biaxially stretched polyester film, a biaxially stretched polyamide film, or the like can be suitably used.
- OPP film biaxially stretched polypropylene film
- PET film biaxially stretched polyethylene terephthalate film
- polyester film a biaxially stretched polyester film
- biaxially stretched polyamide film or the like
- various engineering plastic films can be used as required.
- the sealant layer 211
- the zipper tape 3 is bonded to the inner surface 211 ⁇ / b> A of the opening 24 from one side seal part 22 to the other side seal part 22.
- the zipper tape 3 includes a female band-shaped base 40 having a female member, a cut portion 44 connected to an end of the female side band-shaped base 40 on the opening 24 side, a male side band-shaped base 50 having a male member, A cut portion 54 connected to an end portion of the side band-shaped base portion 50 on the opening 24 side is provided.
- the female side band-shaped base 40 includes a band-shaped base body 41 and a first hook section 42 and a second hook section 43 as female members integrally connected to the band-shaped base body 41.
- the first hook portion 42 and the second hook portion 43 face each other.
- the 1st hook part 42 and the 2nd hook part 43 are engaged with the head 53 of the male side strip
- the female side belt-like base 40 has a bag side surface 40A facing the inner surface 211A, and a seal layer 40B as an adhesive layer for bonding the bag side surface 40A to the inner surface 211A is laminated on the bag side surface 40A. .
- the cut portion 44 includes a first thick portion 45 ⁇ / b> A, a thin portion 46, a rib 47, and a second thick wall in a series from the occlusal portion 6 toward the opening 24.
- the first thick part 45A is disposed on the occlusion part 6 side
- the second thick part 45B is disposed on the opening part 24 side.
- the pair of first and second thick portions 45 ⁇ / b> A and 45 ⁇ / b> B are larger than the thickness of the strip-shaped base body 41 and are formed thick.
- the first and second thick portions 45 ⁇ / b> A and 45 ⁇ / b> B are provided in a longitudinal shape along the longitudinal direction of the strip-shaped base body 41.
- the first thick portion 45A includes a first bag side surface 45A1 that faces the inner surface 211A, and a first inner side surface 45A2 that is the surface opposite to the first bag side surface 45A1 and faces the male side belt-like base portion 50.
- a seal layer 45A3 for adhering the first bag side surface 45A1 to the inner surface 211A is laminated.
- the seal layer 45A3 is formed continuously and integrally with the seal layer 40B.
- the second thick wall portion 45B is also a second bag side surface 45B1 that faces the inner surface 211A, and a second inner side surface that is the surface opposite to the second bag side surface 45B1 and faces the male belt-like base portion 50. 45B2.
- a seal layer 45B3 for adhering the second bag side surface 45B1 to the inner surface 211A is laminated on the second bag side surface 45B1.
- the first and second thick portions 45A and 45B have a thickness dimension (D2).
- the thin portion 46 is disposed in a longitudinal shape between the pair of first and second thick portions 45 ⁇ / b> A and 45 ⁇ / b> B, and both ends in the longitudinal direction are disposed at positions corresponding to the notches 25. Moreover, the thin part 46 has the bag side thin surface 461 which opposes the inner surface 211A, and the inner side thin surface 462 which is a surface on the opposite side to the bag side thin surface 461. The bag-side thin surface 461 is disposed at a position retracted toward the inner side of the bag body 2 in the thickness direction with respect to the first and second bag side surfaces 45A1 and 45B1.
- the bag-side thin surface 461 of the thin-walled portion 46 is provided in a stepped manner with respect to the first and second bag side surfaces 45A1 and 45B1, and has a predetermined interval with respect to the inner surface 211A. It is not glued. Further, the inner thin surface 462 is also disposed at a position retracted toward the inner surface 211A in the thickness direction with respect to the first inner surface 45A2 and the second inner surface 45B2. That is, the inner thin surface 462 of the thin portion 46 is provided in a step shape with respect to the first inner side surface 45A2 and the second inner side surface 45B2.
- the thin-walled portion 46 is connected substantially linearly via a rib 47 to the approximate center in the thickness direction of the first thick-walled portion 45A and the approximate center in the thickness direction of the second thick-walled portion 45B. . Further, the thin portion 46 is formed thinner than the belt-like base body 41 and the first and second thick portions 45A and 45B. And it is preferable that the thickness dimension (D1) of the thin part 46 is 50 micrometers or more, More preferably, it is 60 micrometers or more.
- the thickness dimension (D1) of the thin-walled portion 46 may be bent when the zipper tape 3 is bonded to the inner surface 211A. In this case, the rib 47 is sufficiently formed on the inner surface 211A. There is a possibility that it is not bonded and cannot be cut linearly.
- the thin part 46 is 0.5 mm or more and 5 mm or less in width dimension, and a more preferable range is 1 mm or more and 3 mm or less.
- a more preferable range is 1 mm or more and 3 mm or less.
- the ratio ((D2) / (D1)) between the thickness dimension (D2) of the first and second thick parts 45A and 45B and the thickness dimension (D1) of the thin part 46 is 3 or more and 12 Or less, more preferably 5 or more and 10 or less.
- the thin portion 46 may adhere to the inner surface 211A.
- the ratio ((D2) / (D1)) is larger than 12, the thin-walled portion 46 is likely to be bent, and the above-described problem may occur.
- the rib 47 includes a plurality of bag-side ribs 471 that protrude from the bag-side thin surface 461, a plurality of inner ribs 472 that protrude from the inner thin-wall surface 462, and a thin-wall between the bag-side rib 471 and the inner rib 472. Part 46. Three of these bag-side ribs 471 and three inner ribs 472 are formed. The bag-side rib 471 and the inner rib 472 are provided at substantially the same position in the width direction of the thin portion 46.
- the bag-side rib 471 has a bag-side rib surface 471A facing the inner surface 211A, and a seal layer 473 for bonding the bag-side rib surface 471A to the inner surface 211A is laminated on the bag-side rib surface 471A.
- the inner rib 472 has an inner rib surface 472 ⁇ / b> A that faces the male belt-like base 50.
- the bag-side rib 471 and the inner rib 472 are formed integrally with the thin portion 46, and are formed in a longitudinal shape along the longitudinal direction of the first and second thick portions 45A and 45B.
- the rib 47 has substantially the same thickness dimension (D) as the first and second thick portions 45A and 45B, and the thickness dimension (D) is the height dimension (H11) of the bag-side rib 471. , The sum of the height dimension (H12) of the inner rib 472 and the thickness dimension (D1) of the thin portion 46.
- the ratio ((D) / (D2)) between the thickness dimension (D) of the rib 47 and the thickness dimension (D2) of the first or second thick portion 45A, 45B is 0.8 or more. It is preferably 1.2 or less, more preferably 1.
- the ratio ((D) / (D2)) is larger than 1.2, it is difficult to bond the first and second thick portions 45A and 45B to the inner surface 211A.
- the thickness dimension (D) of the rib 47 is 200 micrometers or more and 700 micrometers or less, More preferably, they are 300 micrometers or more and 600 micrometers or less.
- the thickness dimension (D) of the rib 47 is smaller than 200 ⁇ m, the thin portion 46 may adhere to the inner surface 211A, and may not be easily opened.
- the male side belt-like base 50 has a belt-like base main body 51 and a head 53 as a male member whose section is connected to the belt-like base main body 51 via a connecting portion 52 and has a substantially saddle shape.
- the male side belt-like base 50 includes a belt-like base body 51 and a cut portion 54 similar to the cut portion 44 of the female side belt-like base 40 at the end of the band-like base body 51 on the opening 24 side.
- the cut portion 54 corresponds to the pair of first and second thick portions 45A and 45B, the thin portion 46, the rib 47, the bag side rib 471, and the inner rib 472 of the cut portion 44.
- the bag-side rib 571 and the inner rib 572 of the cut portion 54 have a bag-side rib surface 571A and an inner rib surface 572A corresponding to the bag-side rib surface 471A and the inner rib surface 472A of the cut portion 44.
- the male side belt-like base portion 50 has a bag side surface 50A and first and second bag side surfaces 55A1 and 55B1 corresponding to the bag side surface 40A and the first and second bag side surfaces 45A1 and 45B1.
- the bag side surface 50A, the first and second bag side surfaces 55A1, 55B1, and the bag side rib surface 571A have seal layers 50B, 55A3, 573, 55B3 corresponding to the seal layers 40B, 45A3, 473, 45B3. Are stacked.
- the resin used for the female side strip base 40, the cut portion 44, the male side strip base 50, and the cut portion 54 is a crystalline polyolefin resin.
- a crystalline polyolefin resin examples include low density polyethylene (LD), linear low density polyethylene (LL), and polypropylene (PP), and a mixture of these resins may be used.
- the resin used for the seal layers 40B, 45A3, 473, and 45B3 is preferably a polyolefin resin.
- the polyolefin resin preferably has a lower melting point than the crystalline polyolefin resin used for the female side band-shaped base portion 40 and the cut portion 44.
- the resin used for the seal layers 50B, 55A3, 573, 55B3 is also preferably a polyolefin-based resin, and has a lower melting point than the crystalline polyolefin-based resin used for the male side band-shaped base 50 and the cut portion 54. preferable.
- the zipper tape 3 can be obtained by a co-extrusion method. If it shape
- the packaging bag 1 is manufactured using the base film 21 and the zipper tape 3, using a zipper tape attaching three-way seal bag making machine.
- the zipper tape-attached three-side seal bag making machine positions the zipper tape 3 sent out from the tape sending unit between, for example, the base film 21 sent out from the packaging material sending unit.
- belt-shaped base 50, and the cut part 54 are mutually pressed with a pair of seal bar, and the zipper tape 3 and the base film 21 are adhere
- the base film 21 conveyed is heat-bonded at a predetermined interval with respect to the transport direction of the base film 21 to form the side seal portion 22, and then cut on the side seal portion 22 to be a packaging bag. 1 is formed.
- the point seal process for crushing the zipper tape 3 is implemented.
- FIG. 4 is an enlarged front view showing the vicinity of the notch portion of the packaging bag with a zipper tape.
- the base material film 21 on the opening 24 side of the notch 25 and the base material film 21 on the enclosure side are gripped, and the notch 25 is opened as a tear start part so as to tear back and forth.
- the rib 47 is bonded to the inner surface 211A, stress concentrates on the thin portions 46, 56 having a low tensile strength, and the thin portions 46, 56 where the stress is concentrated are cut. Therefore, since the thin portions 46 and 56 where the stress is concentrated are cut, they are cut only at one place.
- the packaging bag 1 can be opened by releasing the occlusal portion 6 of the zipper tape 3.
- the first hook portion 42 and the second hook portion 43 and the head portion 53 are engaged with each other, and the occlusal portion 6 is brought into an occlusal state.
- the zipper tape 3 Since the rib 47 having a thickness dimension (D) substantially the same as the thickness dimension (D2) of the first and second thick parts 45A and 45B is provided in the cut part 44 of the zipper tape 3, the zipper tape 3 is When bonding to the bag body 2, the first and second thick portions 45A and 45B and the rib 47 can be bonded to the inner surface 211A. Therefore, when the packaging bag 1 is torn and opened, stress concentrates on the thin portion 46 having a small tensile strength, and the thin portion 46 can be cut. Accordingly, there is only one cutting point and no cutting residue is generated. Further, since the cut line C is positioned by the rib 47 when the packaging bag 1 is torn, the straight line cutting property can be obtained without causing the cut line to meander and can be easily torn.
- the inner rib 472 is provided on the opposite side of the bag side rib 471 so as to sandwich the thin portion 46, the thin portion 46 can be reliably cut. That is, it is not cut on the bag-side rib 471 or the inner rib 472.
- the thin portion 46 is disposed at a position retracted from the first and second bag side surfaces 45A1 and 45B1, the thin portion 46 is not bonded to the inner surface 211A, and the thin portions 46 and 56 can be easily cut. Can do.
- the ratio (D) / (D2) between the thickness dimension (D) of the rib 47 and the thickness dimension (D2) of the first and second thick portions 45A and 45B is 0.8 or more. Since it is set to 2 or less, the bag-side rib 471 and the first and second thick portions 45A and 45B can be favorably bonded to the inner surface 211A. Further, since the ratio of the thickness dimension (D) of the rib 47 and the thickness dimension (D2) of the first and second thick portions 45A and 45B is within the above range, the thin portion 46 is formed on the inner surface 211A during bag making. Adhesion can be prevented. In addition, it is possible to prevent pinholes and the like from occurring in the crushed portion in the point sealing process during bag making.
- the ratio ((D2) / (D1)) between the thickness dimension (D2) of the first and second thick portions 45A and 45B and the thickness dimension (D1) of the thin portion 46 is 3 or more and 12 or less. Therefore, it is possible to prevent the thin portion 46 from adhering to the inner surface 211A and the thin portion 46 from being bent.
- the thickness dimension (D1) of the thin portion 46 is 50 ⁇ m or more, the thin portion 46 can be prevented from being bent when the zipper tape 3 is bonded to the inner surface 211A. Therefore, the bag-side rib 471 can be favorably bonded to the inner surface 211A. Therefore, when tearing the packaging bag 1, it is excellent in linear cut property.
- the resin used for the seal layers 40B, 45A3, 45B3, 473 a polyolefin-based resin having a melting point lower than that of the resin used for the female side belt-like base portion 40 and the cut portion 44 is used.
- the zipper tape 3 can be adhered to the surface. Therefore, deterioration of the base material layer 212 which comprises the base material film 21 of the bag body 2 can be suppressed.
- the resin used for the female side belt-like base 40 is a crystalline polyolefin resin, and since this crystalline polyolefin resin is a specific resin such as polypropylene, the rib 47 can be easily molded.
- the zipper tape 3 Since the zipper tape 3 is provided in the bag body 2, it can be set as the packaging bag 1 which is excellent in linear cut property and can be easily torn without generating cutting waste. It should be noted that the cut portion 54 of the male side strip base 50 of the zipper tape 3 has the same effect as the cut portion 44.
- FIG. 5 is a cross-sectional view showing a packaging bag with a zipper tape according to another embodiment.
- the thin-walled portion 46 is configured to connect the first and second thick-walled portions 45A and 45B in a substantially straight line.
- FIG. May be provided.
- one end portion of the thin portion 46C connected to the first thick portion 45A is disposed on the inner surface 211A side, and the other end portion of the thin portion 46C connected to the second thick portion 45B is connected to the bag body 2.
- belt-shaped base 40 showed the structure adhere
- belt-shaped base 40 may be directly adhere
- the thin part 46 is a male side strip
- the thin-walled portion 46 may be provided so as to be disposed on substantially the same plane.
- FIGS. 2 and 3 show a configuration in which three bag-side ribs 471 and three inner ribs 472 are provided in the thin portion 46, but one or more bag-side ribs 471 and inner ribs 472 may be provided.
- three bag-side ribs 471 and three inner ribs 472 are provided, the number of bag-side ribs 471 and the number of inner ribs 472 may be different.
- the cut part 44 was provided in the female side belt-like base 40 and the cut part 54 was provided also in the male side belt-like base 50, the cut was made only on either the female side belt-like base part 40 or the male side belt-like base part 50. The part 44 or the cut part 54 may be provided.
- FIG. 6 is a cross-sectional view showing a zipper tape according to Comparative Example 1
- FIG. 7 is a cross-sectional view showing a zipper tape according to Comparative Example 2.
- Example 1 The zipper tape according to Example 1 was extruded by a commercially available extruder using the following constituent materials. Using the obtained zipper tape and the base film, a packaging bag of Example 1 as shown in FIG. 2 was produced using a zipper tape-attached three-side seal bag making machine. In addition, as a base film, a 12 micrometer polyethylene terephthalate film and linear low density polyethylene (LLDPE) are laminated
- LLDPE linear low density polyethylene
- the zipper tape manufactured under the above conditions has a rib thickness dimension (D) and a thick part thickness dimension (D2) of 300 ⁇ m, and a thin part thickness dimension (D1). ) Is 60 ⁇ m. Moreover, the thin part is not adhere
- Example 2 A zipper tape and a packaging bag were obtained in the same manner as in Example 1 except that the constituent materials of the zipper tape of Example 2 were as follows.
- Comparative Example 1 A zipper tape and a packaging bag according to Comparative Example 1 were obtained in the same manner as in Example 1 except that the following constituent materials were used. As shown in FIG. 6, the zipper tape 9A of Comparative Example 1 was bonded to the inner surface 211A of the bag body 2 on the female side strip base 91A having the female member 91A1 and the male side strip base 92A having the male member 92A1, respectively. A cut portion 93A is provided.
- Female side strip base 91A and male side strip base 92A linear low density polyethylene resin (LLDPE) resin (density 916 kg / m 3 , MFR: 8.5 g / 10 min)
- Cut part 93A crystalline polyolefin resin (density 916 kg / m 3 , MFR: 8.5 g / 10 min) 80% by mass and cyclic polyolefin (MFR: 30 g / 10 min) 20% by mass
- LLDPE linear low density polyethylene resin
- Cut part 93A crystalline polyolefin resin (density 916 kg / m 3 , MFR: 8.5 g / 10 min) 80% by mass and cyclic polyolefin (MFR: 30 g / 10 min) 20% by mass
- the zipper tape 9B of Comparative Example 2 includes a female side belt-like base portion 91B having a female member 91B1 bonded through a seal layer 93B and a male side belt-like base portion 92B having a male member 92B1. And the female side strip
- belt-shaped base part 92B have the thin part 95 which connects a pair of thick part 94A, 94B.
- Comparative Example 3 A zipper tape and a packaging bag of Comparative Example 3 were obtained in the same manner as in Example 1 except that the thickness dimension (D2) of the thin part was 40 ⁇ m.
- Comparative Example 4 A zipper tape and a packaging bag of Comparative Example 4 were obtained in the same manner as in Example 1 except that the thickness dimension (D) of the rib was set to 100 ⁇ m.
- Comparative Example 5 A zipper tape and a packaging bag of Comparative Example 5 were obtained in the same manner as in Example 1 except that the thickness dimension (D) of the rib was set to 800 ⁇ m.
- Comparative Example 4 since the rib was made as thin as 100 ⁇ m, it was found that the thin portion was adhered at the time of bag making. In Comparative Example 5, since the rib was made as thick as 800 ⁇ m, it was found that a pinhole was generated when the side seal portion was formed. That is, it was found that the thickness dimension (D1) of the thin portion of the zipper tape of the present invention is desirably about 60 ⁇ m, and the thickness dimension (D) of the rib is desirably about 300 ⁇ m.
- the present invention can be widely used for, for example, a zipper tape and a packaging bag with a zipper tape for packaging various articles such as foods, medicines, medical products, and miscellaneous goods.
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- Engineering & Computer Science (AREA)
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- Bag Frames (AREA)
Abstract
Description
このような包装袋は、開口部がシールされることによって密封される。包装袋を開封するときは、包装袋の縁に形成されたノッチなどの切込みや切欠き等から袋体の基材フィルムを引き裂くようにシール部分を除去して開封することができる。
近年では、誰でも開封しやすい包装袋の開発が行われており、容易に基材フィルムを引き裂くことができる易開封性に優れた包装袋が求められている(例えば、特許文献1,2参照)。
特許文献2に記載のジッパーテープは、雄部材及び雌部材の幅方向の一縁にカット部を備えている。このカット部は、第一の厚肉部と第二の厚肉部との間に第一の厚肉部及び第二の厚肉部よりも薄肉の薄肉部を有する。この構成により、開封時には、薄肉部が引き裂かれることとなり、ジッパーテープの咬合解除のための十分な袋体の掴み部分が確保できる。
特許文献2の薄肉部も同様に、所定の幅寸法を有するためカットラインが蛇行したり、複数箇所で引き裂かれ切りカスが生じる場合がある。
(3)そして、前記厚肉部の厚さ寸法(D2)と前記薄肉部の厚さ寸法(D1)との比((D2)/(D1))は、3以上12以下であることが好ましい。
(4)また、前記帯状基部、前記一対の厚肉部及び前記リブの一面には、接着層を有したことが好ましい。
(5)さらに、前記接着層は、前記帯状基部及び前記カット部に用いられる樹脂よりも融点が低いポリオレフィン系樹脂であることが好ましい。
[ジッパーテープ付き包装袋の構成]
図1は、本発明に係る実施形態のジッパーテープ付き包装袋を示す正面図である。図2は、図1のII-II断面図である。図3は、前記ジッパーテープ付き包装袋のカット部を拡大して示す断面図である。
袋体2は、包材となる基材フィルム21が重ね合わされて形成され、その周縁にサイドシール部22及びトップシール部23を備える。トップシール部23は、袋体2の封入物を投入する開口部24がシールされることにより形成される。
サイドシール部22は、トップシール部23側の端部に引裂開始部としてのV字形のノッチ25がそれぞれ形成される。
基材層212には、二軸延伸ポリプロピレンフィルム(OPPフィルム)のほか、二軸延伸ポリエチレンテレフタレートフィルム(PETフィルム)、二軸延伸ポリエステルフィルム、二軸延伸ポリアミドフィルムなどを好適に使用することができるが、必要に応じて各種エンジニアリングプラスチックフィルムを使用することもできる。
シーラント層211には、低密度ポリエチレンや、ポリプロピレン(CPP)などを使用することができる。
ジッパーテープ3は、雌部材を有する雌側帯状基部40と、雌側帯状基部40の開口部24側の端部に連結されたカット部44と、雄部材を有する雄側帯状基部50と、雄側帯状基部50の開口部24側の端部に連結されたカット部54を備える。
第一のフック部42及び第二のフック部43は、雄側帯状基部50の頭部53に係脱可能に咬合して咬合部6を構成する。
また、雌側帯状基部40は、内面211Aに対向する袋側面40Aを有し、袋側面40Aには、袋側面40Aを内面211Aに接着させるための接着層としてのシール層40Bが積層されている。
第一の厚肉部45Aは、咬合部6側に配置され、第二の厚肉部45Bは、開口部24側に配置されている。
第一の厚肉部45Aは、内面211Aに対向する第一の袋側面45A1と、第一の袋側面45A1と反対側の面であり雄側帯状基部50に対向する第一の内側面45A2とを有する。第一の袋側面45A1には、第一の袋側面45A1を内面211Aに接着させるためのシール層45A3が積層されている。なお、このシール層45A3は、シール層40Bと連続して一体的に形成されている。
また、第二の厚肉部45Bも、内面211Aに対向する第二の袋側面45B1と、第二の袋側面45B1と反対側の面であり雄側帯状基部50に対向する第二の内側面45B2とを有する。第二の袋側面45B1には、第二の袋側面45B1を内面211Aに接着させるためのシール層45B3が積層されている。
これら第一及び第二の厚肉部45A,45Bは、厚さ寸法(D2)を有する。
また、薄肉部46は、内面211Aに対向する袋側薄肉面461と、袋側薄肉面461と反対側の面である内側薄肉面462とを有する。袋側薄肉面461は第一及び第二の袋側面45A1,45B1に対して厚さ方向で袋体2の内部側に後退した位置に配置されている。つまり、薄肉部46の袋側薄肉面461は、第一及び第二の袋側面45A1,45B1に対して段差状に設けられ、内面211Aに対して所定の間隔を有しており、内面211Aに接着されていない。
また、内側薄肉面462も第一の内側面45A2及び第二の内側面45B2に対して厚さ方向で内面211A側に後退した位置に配置されている。つまり、薄肉部46の内側薄肉面462は、第一の内側面45A2及び第二の内側面45B2に対して段差状に設けられている。
ここで、薄肉部46の厚さ寸法(D1)が50μm未満の場合、内面211Aにジッパーテープ3を接着させる際、薄肉部46が折れ曲がる場合があり、その場合、内面211Aにリブ47が十分に接着されず、直線状に切り裂くことができないおそれがある。
そして、第一及び第二の厚肉部45A,45Bの厚さ寸法(D2)と、薄肉部46の厚さ寸法(D1)との比((D2)/(D1))は、3以上12以下であることが好ましく、さらに好ましくは、5以上10以下である。
ここで、前記比((D2)/(D1))が3よりも小さい場合、薄肉部46が内面211Aに接着してしまう場合がある。
一方、前記比((D2)/(D1))が12よりも大きい場合、薄肉部46が折れ曲がりやすくなり、前記のような問題が生じるおそれがある。
これら袋側リブ471と内側リブ472とは、薄肉部46の幅方向の略同位置に設けられている。
袋側リブ471は、内面211Aに対向する袋側リブ面471Aを有し、袋側リブ面471Aには、袋側リブ面471Aを内面211Aに接着させるためのシール層473が積層されている。
内側リブ472は、雄側帯状基部50に対向する内側リブ面472Aを有する。これら袋側リブ471及び内側リブ472は、薄肉部46と一体に形成され、第一及び第二の厚肉部45A,45Bの長手方向に沿って長手状に形成されている。
ここで、前記比((D)/(D2))が1.2よりも大きい場合、内面211Aに第一及び第二の厚肉部45A,45Bを接着させにくくなる。一方、前記比((D)/(D2))が0.8よりも小さい場合、内面211Aに袋側リブ471を接着させにくくなる。
そして、リブ47の厚さ寸法(D)は、200μm以上700μm以下であることが好ましく、さらに好ましくは、300μm以上600μm以下である。
ここで、リブ47の厚さ寸法(D)が200μmよりも小さい場合、薄肉部46が内面211Aに接着してしまい、容易に開封できない場合がある。
また、カット部54の袋側リブ571及び内側リブ572は、カット部44の袋側リブ面471A及び内側リブ面472Aに対応する、袋側リブ面571A及び内側リブ面572Aを有する。
また、雄側帯状基部50は、袋側面40A、第一および第二の袋側面45A1,45B1に対応する、袋側面50A、第一および第二の袋側面55A1,55B1を有する。
そして、これら袋側面50A、第一および第二の袋側面55A1,55B1及び袋側リブ面571Aには、シール層40B,45A3,473,45B3に対応する、シール層50B,55A3,573,55B3が積層されている。
シール層40B,45A3,473,45B3に用いられる樹脂は、ポリオレフィン系樹脂であることが好ましい。このポリオレフィン系樹脂は、雌側帯状基部40及びカット部44に用いられる結晶性ポリオレフィン系樹脂よりも融点が低いことが好ましい。また、シール層50B,55A3,573,55B3に用いられる樹脂も、ポリオレフィン系樹脂であることが好ましく、雄側帯状基部50及びカット部54に用いられる結晶性ポリオレフィン系樹脂よりも融点が低いことが好ましい。
ジッパーテープ3を製造するには、共押出成形法により一体化して得ることができる。共押出法により成形すれば、製造工程を簡略化でき、製造コストを低くでき、ジッパーテープ3を連続的に安定して製造することができる。
ジッパーテープ付け三方シール製袋機は、例えば包材送出部から送り出された基材フィルム21の間に、テープ送出部から送り出されたジッパーテープ3を位置させる。そして、一対のシールバーにより、基材フィルム21と雌側帯状基部40、カット部44、雄側帯状基部50及びカット部54とを互いに押し付けて、ジッパーテープ3と基材フィルム21を接着させる。
そして、搬送される基材フィルム21を、基材フィルム21の搬送方向に対して所定間隔で熱接着して、サイドシール部22を形成し、その後、サイドシール部22上で切断して包装袋1を形成する。
なお、包装袋1のサイドシール部22を形成する際、ジッパーテープ3を潰すためのポイントシール工程を実施する。
次に、本実施形態の包装袋1を開封する方法を説明する。
図4は、ジッパーテープ付き包装袋のノッチ部分近傍を拡大して示す正面図である。
開封するときは、ノッチ25の開口部24側の基材フィルム21と、封入物側の基材フィルム21とを把持し、ノッチ25を引裂開始部として、前後に引き裂くようにして開封する。ここで、リブ47が内面211Aに接着されているので、引張強度が小さい薄肉部46、56に応力が集中し、その応力が集中した薄肉部46、56にて切断される。従って、応力が集中した薄肉部46,56が切断されるので、1箇所でしか切断されない。つまり、カットラインC(一点鎖線)は1本のみとなる。そして、リブ47,57により位置決めされるため、カットラインCは、直線状となり、蛇行しない。
その後は、ジッパーテープ3の咬合部6を解除することによって、包装袋1を開封することができる。再封する場合には、第一のフック部42及び第二のフック部43と頭部53とを咬合させて、咬合部6を咬合状態とすればよい。
前記したようなジッパーテープ3及び包装袋1によれば、以下に示す作用効果を奏することができる。
ジッパーテープ3のカット部44に、第一及び第二の厚肉部45A,45Bの厚さ寸法(D2)と略同一の厚さ寸法(D)を有するリブ47を設けたため、ジッパーテープ3を袋体2に接着させる際、第一及び第二の厚肉部45A,45Bと、リブ47とを内面211Aに接着させることができる。そのため、包装袋1を引き裂いて開封する際、引張強度の小さい薄肉部46に応力が集中し、その薄肉部46で切断することができる。従って、切断箇所が1箇所となり、切りカスが発生しない。
また、包装袋1を引き裂く際、リブ47によってカットラインCを位置決めするため、カットラインが蛇行することなく、直線カット性が得られ、容易に引き裂くことができる。
また、リブ47の厚さ寸法(D)と第一及び第二の厚肉部45A,45Bの厚さ寸法(D2)との比を上記範囲としたため、製袋時に薄肉部46が内面211Aに接着することを防止できる。また、製袋時のポイントシール工程において、潰し部分にピンホールなどが発生することも防止できる。
なお、ジッパーテープ3の雄側帯状基部50のカット部54においても、カット部44と同様の効果を奏する。
なお、本発明は、前記した実施形態に限定されるものではなく、本発明の目的及び効果を達成できる範囲内での変形や改良が、本発明の内容に含まれるものであることはいうまでもない。また、本発明を実施する際における具体的な構造及び形状等は、本発明の目的及び効果を達成できる範囲内において、他の構造や形状等としても問題はない。
図5は、他の実施形態のジッパーテープ付き包装袋を示す断面図である。
このような構成の包装袋1を切断する場合でも、リブ47は、内面211Aに接着されているため、引張強度の小さい薄肉部46に応力が集中し、その薄肉部46で切断することができる。
また、図2,3では、袋側リブ471及び内側リブ472を、薄肉部46に3つずつ設ける構成を示したが、袋側リブ471及び内側リブ472は一つでも複数でもよい。
そして、袋側リブ471と内側リブ472とは、3つずつ設ける構成を示したが、袋側リブ471の数と内側リブ472の数は、異なっていてもよい。
さらに、雌側帯状基部40にカット部44を設け、雄側帯状基部50にもカット部54を設ける構成を示したが、雌側帯状基部40又は雄側帯状基部50のいずれか一方にのみカット部44又はカット部54を設けてもよい。
図6は、比較例1に係るジッパーテープを示す断面図であり、図7は、比較例2に係るジッパーテープを示す断面図である。
実施例1に係るジッパーテープは以下の構成材料を用いて、市販の押出機により押出成形した。得られたジッパーテープと、基材フィルムとを用いて、ジッパーテープ付け三方シール製袋機等を用いて図2に示すような実施例1の包装袋を製造した。なお、基材フィルムとしては、12μmのポリエチレンテレフタレートフィルムと、直鎖状低密度ポリエチレン(LLDPE)とを積層したものである。
雄側帯状基部及び雌側帯状基部:ランダムポリプロピレン(密度900kg/m3、エチレン量4%)
シール層:メタロセン系直鎖状低密度ポリエチレン樹脂(融点:95℃、MFR:3g/10分)
融点はDSCで測定し、最高融解ピークを融点とした。
実施例2のジッパーテープの構成材料を下記のようにした以外は、実施例1と同様にジッパーテープ及び包装袋を得た。
雄側帯状基部及び雌側帯状基部:直鎖状低密度ポリエチレン樹脂(LLDPE)(密度913kg/m3、MFR:4g/10分)
シール層:メタロセン系直鎖状低密度ポリエチレン樹脂(融点:95℃、MFR:3g/10分)
以下の構成材料を用いた以外は、実施例1と同様にして、比較例1に係るジッパーテープ及び包装袋を得た。比較例1のジッパーテープ9Aは、図6に示すように、雌部材91A1を有する雌側帯状基部91Aと雄部材92A1を有する雄側帯状基部92Aとに、それぞれ袋体2の内面211Aと接着したカット部93Aを備えている。
雌側帯状基部91A及び雄側帯状基部92A:直鎖状低密度ポリエチレン樹脂(LLDPE)樹脂(密度916kg/m3、MFR:8.5g/10分)
カット部93A:結晶性ポリオレフィン樹脂(密度916kg/m3、MFR:8.5g/10分)80質量%と環状ポリオレフィン(MFR:30g/10分)20質量%
リブを形成しなかった以外は、実施例1と同様にして、図7に示すような比較例2に係るジッパーテープ及び包装袋を得た。比較例2のジッパーテープ9Bは、シール層93Bを介して接着された雌部材91B1を有する雌側帯状基部91Bと雄部材92B1を有する雄側帯状基部92Bとを備える。そして、雌側帯状基部91Bと雄側帯状基部92Bとは、一対の厚肉部94A,94Bを連結する薄肉部95を有する。
(比較例3)
薄肉部の厚さ寸法(D2)を40μmとした以外は、実施例1と同様にして、比較例3のジッパーテープ及び包装袋を得た。
リブの厚さ寸法(D)を100μmとした以外は、実施例1と同様にして、比較例4のジッパーテープ及び包装袋を得た。
(比較例5)
リブの厚さ寸法(D)を800μmとした以外は、実施例1と同様にして、比較例5のジッパーテープ及び包装袋を得た。
包装袋の端縁にノッチをいれ、ノッチから包装袋を引き裂き、下記評価基準により評価した。その結果を表2に示す。
(外観性実験の評価基準)
A:カット部が必ず1ヶ所で切れる。
C:カット部が2ヶ所以上で切れて切カスが生じる。
包装袋の端縁にノッチをいれ、デジタルフォースゲージ(株式会社イマダ製)にて、引張速度300m/min、破断長さが60mmになるまでの破断強度を測定した。測定結果を下記評価基準により評価した。その結果を表2に示す。
(開封性実験の評価基準)
A:抵抗なく、容易に開封できる(破断強度:5N/60mm以下)。
C:抵抗が大きく、開封し難い(破断強度:5N/60mm以上)。
包装袋の端縁にノッチをいれ、ノッチから包装袋を引き裂いた。この際、ノッチ位置からの破断位置のズレを測定し、下記評価基準により評価した。その結果を表2に示す。
(直線カット性実験の評価基準)
A:カット時にジッパーテープが、完全に直線にカットできる(破断位置のズレ:1mm未満)。
B:カット時にジッパーテープが、直線にカットできる(破断位置のズレ:1mm以上3mm未満)。
C:カット時にジッパーテープが直線にカットできない(破断位置のズレ:3mm以上)。
(ピンホールの評価基準)
A:ピンホール発生なし。
C:ピンホール発生あり。
(薄肉部の接着具合の評価基準)
A:薄肉部が、袋体の内面に接着しない。
C:薄肉部が、袋体の内面に接着する。
(薄肉部の折れ具合の評価基準)
A:薄肉部が、折れ曲がらない。
C:薄肉部が、折れ曲がる。
一方、比較例1,2の包装袋では、切りカスが発生し外観が悪いことがわかった。
また、比較例3では、薄肉部の厚さ寸法を40μmと薄くしたため、薄肉部が折れ曲り、リブを基材フィルムに接着させにくくなることがわかった。比較例4では、リブを100μmと薄くしたため、製袋時に薄肉部が接着することがわかった。比較例5では、リブを800μmと厚くしたため、サイドシール部を形成する際に、ピンホールが発生することがわかった。つまり、本発明のジッパーテープの薄肉部の厚さ寸法(D1)は60μm程度が望ましく、リブの厚さ寸法(D)は300μm程度が望ましいことがわかった。
2…袋体
3…ジッパーテープ
40…雌側帯状基部
40B,45A3,473,45B3…接着層としてのシール層
44,54…カット部
50…雄側帯状基部
50B,55A3,573,55B3…接着層としてのシール層
45A,55A…第一の厚肉部
45B,55B…第二の厚肉部
46,56…薄肉部
47…リブ
471,571…袋側リブ
472,572…内側リブ
Claims (6)
- 互いに咬合可能な雄部材及び雌部材がそれぞれ一対の帯状基部に設けられたジッパーテープであって、
前記一対の帯状基部のうち少なくとも一方の端部に、この帯状基部の厚さ寸法より厚肉の一対の厚肉部と、これら厚肉部間に設けられ当該厚肉部の厚さ寸法よりも薄肉の薄肉部と、この薄肉部に突出形成され当該厚肉部の厚さと略同一の厚さ寸法のリブとを有するカット部を備えたことを特徴とするジッパーテープ。 - 前記リブの厚さ寸法(D)は、前記リブの前記薄肉部から突出する高さ寸法及び前記薄肉部の厚さ寸法の和であり、
前記リブの厚さ寸法(D)と前記厚肉部の厚さ寸法(D2)との比((D)/(D2))が、0.8以上1.2以下であることを特徴とする請求項1に記載のジッパーテープ。 - 前記厚肉部の厚さ寸法(D2)と前記薄肉部の厚さ寸法(D1)との比((D2)/(D1))は、3以上12以下であることを特徴とする請求項1または2に記載のジッパーテープ。
- 前記帯状基部、前記一対の厚肉部及び前記リブの一面には、接着層を有したことを特徴とする請求項1から3までのいずれか一項に記載のジッパーテープ。
- 前記接着層は、前記帯状基部及び前記カット部に用いられる樹脂よりも融点が低いポリオレフィン系樹脂であることを特徴とする請求項4に記載のジッパーテープ。
- 封入物を封入可能な開口部を有した袋体の開口部内面に、請求項1から5までのいずれか一項に記載のジッパーテープを、前記帯状基部、前記厚肉部、及び前記リブの一面を接着させた状態で配置したことを特徴とするジッパーテープ付き包装袋。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010800562117A CN102652097A (zh) | 2009-12-11 | 2010-12-06 | 卡扣带及带有卡扣带的包装袋 |
CA2781662A CA2781662A1 (en) | 2009-12-11 | 2010-12-06 | Zipper tape and packaging bag with zipper tape |
US13/514,615 US20120275730A1 (en) | 2009-12-11 | 2010-12-06 | Zipper tape and packaging bag with zipper tape |
EP10835916.7A EP2511186A4 (en) | 2009-12-11 | 2010-12-06 | SLIDE CLOSURE STRIP AND PACKAGING BAG WITH SAID ZIPPER CLOSURE STRIP |
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JP2009-281228 | 2009-12-11 | ||
JP2009281228A JP5595026B2 (ja) | 2009-12-11 | 2009-12-11 | ジッパーテープ、及び、ジッパーテープ付き包装袋 |
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WO2011070996A1 true WO2011070996A1 (ja) | 2011-06-16 |
Family
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PCT/JP2010/071785 WO2011070996A1 (ja) | 2009-12-11 | 2010-12-06 | ジッパーテープ、及び、ジッパーテープ付き包装袋 |
Country Status (8)
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US (1) | US20120275730A1 (ja) |
EP (1) | EP2511186A4 (ja) |
JP (1) | JP5595026B2 (ja) |
KR (1) | KR20120102697A (ja) |
CN (1) | CN102652097A (ja) |
CA (1) | CA2781662A1 (ja) |
TW (1) | TW201134725A (ja) |
WO (1) | WO2011070996A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021060235A1 (ja) * | 2019-09-27 | 2021-04-01 | 出光ユニテック株式会社 | テープ、ジッパーテープ、テープ付き容器およびその製造方法 |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4455489A (en) * | 1981-11-19 | 1984-06-19 | Varian Associates, Inc. | Quadrupole singlet focusing for achromatic parallel-to-parallel devices |
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KR20120135900A (ko) * | 2010-02-12 | 2012-12-17 | 이데미쓰 유니테크 가부시키가이샤 | 지퍼 테이프 및 지퍼 테이프가 달린 포장 백 |
US8550716B2 (en) * | 2010-06-22 | 2013-10-08 | S.C. Johnson & Son, Inc. | Tactile enhancement mechanism for a closure mechanism |
JP2013028394A (ja) * | 2011-07-29 | 2013-02-07 | Fuji Tokushu Shigyo Kk | ジッパー付ピロー包装袋及びこのピロー包装袋に用いられるジッパー |
JP6041494B2 (ja) * | 2012-01-23 | 2016-12-07 | 出光ユニテック株式会社 | カットテープ、ジッパーテープ、及び包装袋 |
JP6087560B2 (ja) * | 2012-09-28 | 2017-03-01 | 富士特殊紙業株式会社 | ジッパー付ピロー包装袋 |
JP6139102B2 (ja) * | 2012-11-01 | 2017-05-31 | 富士特殊紙業株式会社 | 直進カット補助テープ付ピロー包装袋及びその製法 |
JP6139290B2 (ja) * | 2013-06-18 | 2017-05-31 | 富士特殊紙業株式会社 | ジッパー付ピロー包装袋 |
CN104555037A (zh) * | 2013-10-21 | 2015-04-29 | 大连竹菱包装工业有限公司 | 带撕裂条的一体塑料开闭条及其包装袋 |
JP2014196145A (ja) * | 2014-06-16 | 2014-10-16 | 出光ユニテック株式会社 | ジッパーテープ、及び、包装袋 |
JP6113339B1 (ja) | 2016-08-01 | 2017-04-12 | 出光ユニテック株式会社 | テープ及び袋体 |
JP7285642B2 (ja) * | 2018-12-25 | 2023-06-02 | タキロンシーアイ株式会社 | 嵌合具および嵌合具付き袋体 |
JP7317574B2 (ja) * | 2019-05-28 | 2023-07-31 | 株式会社生産日本社 | 緩衝袋 |
EP4032826A4 (en) * | 2019-09-20 | 2023-10-11 | Idemitsu Unitech Co., Ltd. | TAPE, ZIPPER TAPE, BANDED CONTAINER AND ZIPPERED CONTAINER |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09301383A (ja) * | 1996-05-16 | 1997-11-25 | Totani Giken Kogyo Kk | プラスチック袋 |
JP2004244027A (ja) | 2003-02-10 | 2004-09-02 | Ci Sanplus Kk | 易カット性嵌合具及び嵌合具付袋体 |
JP2007130043A (ja) * | 2005-11-08 | 2007-05-31 | Idemitsu Unitech Co Ltd | 咬合具、これを用いた袋およびこれらの製造方法 |
WO2008035494A1 (fr) | 2006-09-22 | 2008-03-27 | Idemitsu Unitech Co., Ltd. | Bande de fixation facilement déchirable, procédé de fabrication de la bande de fixation, sac d'emballage avec bande de fixation facilement déchirable, et dispositif et procédé de fabrication du sac d'emballage |
JP2009023668A (ja) * | 2007-07-18 | 2009-02-05 | Seisan Nipponsha:Kk | 袋開封用テープ及び包装袋 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3827472A (en) * | 1969-12-05 | 1974-08-06 | Seisan Nipponsha Kk | Reclosable bag |
US3780781A (en) * | 1971-09-07 | 1973-12-25 | Seisan Nipponsha Kk | Openable bag |
US4947525A (en) * | 1989-03-23 | 1990-08-14 | Zip-Pak Incorporated | Zipper closure with internal peel seal |
US5527112A (en) * | 1994-04-15 | 1996-06-18 | Dowbrands L.P. | Adhesive closure for flexible bag |
US5832145A (en) * | 1994-04-15 | 1998-11-03 | Dowbrands L.P. | Adhesive closure for flexible bag |
US5564834A (en) * | 1994-04-15 | 1996-10-15 | Dowbrands L.P. | Adhesive closure having enhanced burst strength for flexible bag |
US5664303A (en) * | 1995-11-06 | 1997-09-09 | Illinois Tool Works Inc. | Differential flange header package |
US5660479A (en) * | 1996-02-16 | 1997-08-26 | Reynolds Consumer Products Inc. | Easy open package header |
US5672009A (en) * | 1996-05-21 | 1997-09-30 | Illinois Tool Works Inc. | Reclosable pouch and zipper therefor |
US6030122A (en) * | 1998-03-06 | 2000-02-29 | Illinois Tool Works Inc. | Pinch-grip zipper |
AUPR105600A0 (en) * | 2000-10-27 | 2000-11-23 | International Consolidated Business Pty Ltd | Reclosable plastic bags |
US20040091186A1 (en) * | 2002-11-07 | 2004-05-13 | Daiwa Gravure Co. Ltd. | Packaging bag with zipper |
US20070206888A1 (en) * | 2006-03-06 | 2007-09-06 | Chia-Hsiang Chang | Multi-pocket specimen bag incorporating easy tear lines for removal of pre-sealed inserts |
JP4874742B2 (ja) * | 2006-08-21 | 2012-02-15 | 出光ユニテック株式会社 | カットテープ付きチャックテープ、その製造方法、およびチャックテープ付き包装袋 |
US7950851B2 (en) * | 2007-05-15 | 2011-05-31 | Thunderbird Global Enterprises, Llc | Plastic bag with imperforated tear area |
JP5118080B2 (ja) * | 2009-02-06 | 2013-01-16 | 出光ユニテック株式会社 | 易裂き性ジッパーテープ、および、易裂き性ジッパーテープ付き包装袋 |
-
2009
- 2009-12-11 JP JP2009281228A patent/JP5595026B2/ja active Active
-
2010
- 2010-12-06 EP EP10835916.7A patent/EP2511186A4/en not_active Withdrawn
- 2010-12-06 KR KR1020127015057A patent/KR20120102697A/ko not_active Application Discontinuation
- 2010-12-06 CN CN2010800562117A patent/CN102652097A/zh active Pending
- 2010-12-06 CA CA2781662A patent/CA2781662A1/en not_active Abandoned
- 2010-12-06 WO PCT/JP2010/071785 patent/WO2011070996A1/ja active Application Filing
- 2010-12-06 US US13/514,615 patent/US20120275730A1/en not_active Abandoned
- 2010-12-09 TW TW099143093A patent/TW201134725A/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09301383A (ja) * | 1996-05-16 | 1997-11-25 | Totani Giken Kogyo Kk | プラスチック袋 |
JP2004244027A (ja) | 2003-02-10 | 2004-09-02 | Ci Sanplus Kk | 易カット性嵌合具及び嵌合具付袋体 |
JP2007130043A (ja) * | 2005-11-08 | 2007-05-31 | Idemitsu Unitech Co Ltd | 咬合具、これを用いた袋およびこれらの製造方法 |
WO2008035494A1 (fr) | 2006-09-22 | 2008-03-27 | Idemitsu Unitech Co., Ltd. | Bande de fixation facilement déchirable, procédé de fabrication de la bande de fixation, sac d'emballage avec bande de fixation facilement déchirable, et dispositif et procédé de fabrication du sac d'emballage |
JP2009023668A (ja) * | 2007-07-18 | 2009-02-05 | Seisan Nipponsha:Kk | 袋開封用テープ及び包装袋 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2511186A4 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021060235A1 (ja) * | 2019-09-27 | 2021-04-01 | 出光ユニテック株式会社 | テープ、ジッパーテープ、テープ付き容器およびその製造方法 |
US11882908B2 (en) | 2019-09-27 | 2024-01-30 | Idemitsu Unitech Co., Ltd. | Tape, zipper tape, and container with tape and method for manufacture therefor |
Also Published As
Publication number | Publication date |
---|---|
EP2511186A1 (en) | 2012-10-17 |
KR20120102697A (ko) | 2012-09-18 |
TW201134725A (en) | 2011-10-16 |
JP2011121615A (ja) | 2011-06-23 |
JP5595026B2 (ja) | 2014-09-24 |
CN102652097A (zh) | 2012-08-29 |
US20120275730A1 (en) | 2012-11-01 |
CA2781662A1 (en) | 2011-06-16 |
EP2511186A4 (en) | 2014-10-29 |
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