WO2013058298A1 - Structure adhésive à film stratifié et son procédé de retrait - Google Patents

Structure adhésive à film stratifié et son procédé de retrait Download PDF

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Publication number
WO2013058298A1
WO2013058298A1 PCT/JP2012/076888 JP2012076888W WO2013058298A1 WO 2013058298 A1 WO2013058298 A1 WO 2013058298A1 JP 2012076888 W JP2012076888 W JP 2012076888W WO 2013058298 A1 WO2013058298 A1 WO 2013058298A1
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WO
WIPO (PCT)
Prior art keywords
film
laminated
lowermost
adhesive structure
laminated film
Prior art date
Application number
PCT/JP2012/076888
Other languages
English (en)
Japanese (ja)
Inventor
中村　博文
井上　雅偉
Original Assignee
富士紡ホールディングス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 富士紡ホールディングス株式会社 filed Critical 富士紡ホールディングス株式会社
Publication of WO2013058298A1 publication Critical patent/WO2013058298A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/06—Interconnection of layers permitting easy separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • B32B2255/205—Metallic coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/748—Releasability
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • B32B2323/046—LDPE, i.e. low density polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/10—Polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2435/00—Closures, end caps, stoppers
    • B32B2435/02—Closures, end caps, stoppers for containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/40—Closed containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/80—Medical packaging

Definitions

  • the present invention relates to an adhesive structure of a laminated film that can peel only an upper film, and a peeling method using the adhesive structure of the laminated film.
  • containers are known in which the opening of the storage unit is sealed with a film and the film is opened when the contents are taken out, but depending on the nature of the contents and the use of the container, a plurality of such films are laminated.
  • a container having a double lid structure for sealing is known.
  • Patent Document 1 discloses a food container having a double lid structure
  • Patent Document 2 discloses a fragrance container having a double lid structure.
  • the container opening is sealed with a laminated film, and when used, only the upper film is peeled off and used.
  • the containers of Patent Documents 1 and 2 are formed so as to protrude outward from the edge of the container and the film of the lower layer.
  • a gripping part and a knob piece are formed on the upper film, and only the upper layer film can be peeled off by peeling the grip part and the knob piece from the lower layer film.
  • Patent Document 3 discloses a reagent container having an opening sealed with a film made of an elastic material. Such a reagent container does not peel off the elastic film even when the contents are discharged to the outside, and the contents are discharged by expanding the film into the container. In order to prevent this, a double lid structure in which films having a barrier function are laminated on the elastic film is preferable.
  • a gripping part or a knob piece that becomes a trigger for peeling as seen in Patent Documents 1 and 2 is formed so that the upper film can be easily peeled off during use. It is possible to do.
  • a gripping part or the like can be formed only at the end of the container, and is a type in which a plurality of storage parts are continuously provided on one substrate in the reagent container. Those formed side by side in a row or more have a problem that a grip portion or a knob piece cannot be provided in a container portion arranged at the center thereof.
  • the number of processes will be increased separately.
  • an object of the present invention is to provide an adhesive structure that overcomes the drawbacks of the conventional laminated film and that allows only the uppermost film of the laminated film to be peeled off reliably and easily, and a peeling method thereof.
  • the present invention solves the above problems, and is an adhesive structure of a laminated film composed of at least two layers adhered to a base material, and the lowest film adhered to at least the base material among the laminated films is An upper film formed of a material having stretchability and laminated on at least the lowermost film among the laminated films is formed of a material having little or no stretchability, and the lowermost film and the upper film And a non-adhesive surface in which a space is formed between the lowermost film and the flat plate portion for bonding in the concave portion. It is the adhesion structure of the laminated film characterized by these.
  • the present invention is a method for peeling the laminated film, wherein the upper film is peeled from the lowermost film by bending the base material in the concave portion to the side opposite to the concave portion forming surface. It is the peeling method of the laminated
  • the adhesive structure of the laminated film according to the present invention utilizes the difference in stretchability of the laminated films, and simply folds the base material to which the film is attached, leaving the lowermost film and easily peeling the upper film. It is possible.
  • Partial sectional view of the adhesive structure of the laminated film of the present invention The fragmentary sectional view showing the state which has peeled the upper layer film of the laminated
  • FIG. 1 is a partial cross-sectional view of the laminated film adhesive structure of the present invention
  • FIG. 2 is a partial cross-sectional view showing a state where the upper film of the laminated film of the present invention is peeled off.
  • 1 is a laminated film
  • 2 is a substrate
  • 11 is a lowermost film
  • 12 is an upper film
  • 13 is an uppermost film
  • 21 is an adhesive surface
  • 22 is a recess
  • 23 is a non-adhesive surface.
  • the laminated film 1 of the present invention has a three-layer structure and is bonded to the bonding surface 21 of the substrate 2.
  • the base material here include a plate-like portion (flange piece) that is typically formed to protrude outward from the opening edge of the container having a storage portion, but is not limited thereto. .
  • the lowermost layer film 11 is a linear low density polyethylene (LLDPE) having appropriate stretchability, and a metal foil such as an aluminum foil having a barrier function, an aluminum vapor deposition film, a polyethylene terephthalate film (PET), or
  • the upper film 12 made of polypropylene (PP) is laminated by a dry lamination method.
  • the uppermost layer film 13 made of PET is laminated from the top by the same dry laminating method.
  • LLDPE is selected as the lowermost layer film 11, but it is not limited to this material as long as appropriate stretchability can be obtained.
  • moderate stretchability here should just have an elongation of 100% or more, when elongation is measured in the state which applied a 1.5 kg load to the film of width 3cm x length 10cm.
  • the lowermost film 11 is bonded to the bonding surface 21 of the substrate 2 by heat fusion, but the bonding method is not limited to this, and when the upper film 12 is peeled from the lowermost film 11, Any known bonding means can be used as long as it has a strength that does not cause peeling between the lowermost layer film 11 and the substrate 2.
  • a metal foil such as an aluminum foil, PET, PP, etc. can be selected as appropriate. However, as long as the material has little or no stretchability. However, it is not particularly limited to these. However, in order to improve the storage stability of the contents of the container, it is preferable to have a gas barrier function. Moreover, although the upper layer film 12 is adhere
  • PET is selected as the uppermost layer film 13, but the material is not limited to this, and the presence or absence of stretchability is not questioned.
  • the laminated film 1 has a three-layer structure.
  • the laminated film 1 may have a two-layer structure of a lowermost film 11 and an upper film 12, and a film is further formed on the uppermost film 13.
  • a four-layer structure may be formed by stacking.
  • FIG. 3 shows an embodiment of a container to which the laminated film of the present invention is suitably applied.
  • the base material 2 in the present embodiment constitutes a flange piece that is formed to protrude outward from the peripheral edge of the opening 31 of the container body 3.
  • the adhesion surface 21 of the substrate 2 is formed in a flat surface so that the lowermost film 11 can be easily adhered, but has a recess 22 in a part thereof.
  • the concave portion 22 is formed in a groove shape having a certain length, width and depth, and a space is formed between the lowermost layer film 11 and the flat plate portion 2 for bonding in this portion.
  • a non-adhesive surface 23 to which the lowermost film 11 is not adhered is formed.
  • the cross-sectional shape of the recess 22 is formed in a rectangular shape, but the cross-sectional shape is not limited to this, and may be a square, a semicircular shape, a semi-elliptical shape, a triangular shape, or the like.
  • the width W of the recess 22 is not particularly limited as long as the non-adhesive surface 23 can be secured, and is preferably 0.5 mm ⁇ W.
  • the depth D is preferably in the range of 0.2T ⁇ D ⁇ 0.7T with respect to the thickness T of the bonding flat plate portion 2.
  • the position at which the concave portion 22 is formed is not particularly limited as long as it does not interfere with the peeling of the laminated film 1, but a portion near the end of the bonding flat plate portion 2 that is easy to be bent later is preferable.
  • the bent portion 24 is formed near the corner of the substrate 2, and the concave portion 22 is formed between the bent portion 24 and the opening 31.
  • the material of the container body 3 and the base material 2 is preferably linear low density polyethylene (LLDPE), but is not particularly limited as long as it satisfies the moldability and adhesive properties of the container.
  • the outer side of the portion where the concave portion 22 is formed, that is, the bent portion 24 is on the side opposite to the surface where the concave portion 22 is formed in the embodiment of FIG. Press down.
  • the concave portion 22 is thinner than the other portions, the concave portion 22 can be easily bent using the pressing bending fulcrum. In this way, as the bonding flat plate portion 2 bends downward, a force that is pulled in the bending direction acts on the laminated film 1.
  • the lowermost film 11 having stretchability extends following the bonding flat plate portion 2, but the upper film 12 having little or no stretchability cannot follow the lowermost film 11, Stress that tends to shift between the upper film 12 and the adhesive layer is applied. And when the adhesive force of an adhesive bond layer becomes unbearable, a part of upper layer film 12 peels from the lowermost layer film 11. FIG. The upper layer film 12 thus peeled is held with a finger and peeled off from the lowermost film 11 to complete the peeling of the remaining part.
  • the adhesive structure of the laminated film of the present invention and the peeling method thereof can be applied to a container having a double lid structure regardless of the contents. Furthermore, the present invention can be widely applied to fields such as pharmaceuticals, cosmetics, and foods.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Laminated Bodies (AREA)
  • Packages (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Closures For Containers (AREA)

Abstract

La présente invention a pour objectif une structure adhésive et son procédé de retrait, qui permet seulement à la couche supérieure d'un film stratifié d'être retirée de façon fiable et facile. La structure adhésive est un film stratifié comprenant au moins deux couches de film collées sur un substrat et est caractérisée par ce qui suit : parmi les couches de film collées, au minimum le film le plus bas collé sur le substrat est constitué d'un matériau élastique ; parmi les couches de film stratifiées, au minimum le film le plus haut stratifié sur le film le plus bas est constitué d'un matériau qui ne présente presque pas d'élasticité, ou qui n'en présente pas du tout ; le film le plus bas et le film le plus haut sont stratifiés de sorte qu'ils puissent se détacher l'un de l'autre ; et une section concave est formée dans une première partie de la surface adhésive du substrat, et une surface non adhésive est formée par la création d'un espace entre le film le plus bas et le substrat dans la section concave.
PCT/JP2012/076888 2011-10-19 2012-10-18 Structure adhésive à film stratifié et son procédé de retrait WO2013058298A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-229717 2011-10-19
JP2011229717A JP2013086851A (ja) 2011-10-19 2011-10-19 積層フィルムの接着構造とその剥離方法

Publications (1)

Publication Number Publication Date
WO2013058298A1 true WO2013058298A1 (fr) 2013-04-25

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Application Number Title Priority Date Filing Date
PCT/JP2012/076888 WO2013058298A1 (fr) 2011-10-19 2012-10-18 Structure adhésive à film stratifié et son procédé de retrait

Country Status (2)

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WO (1) WO2013058298A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62168365U (fr) * 1986-04-15 1987-10-26
JPH0387675U (fr) * 1989-12-22 1991-09-06
JP2004142802A (ja) * 2002-10-25 2004-05-20 Toppan Printing Co Ltd 剥離可能な蓋材

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5686126A (en) * 1995-06-06 1997-11-11 W. R. Grace & Co.-Conn. Dual web package having improved gaseous exchange
JP4955339B2 (ja) * 2006-08-18 2012-06-20 東洋アルミニウム株式会社 蓋材および包装体および包装体の製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62168365U (fr) * 1986-04-15 1987-10-26
JPH0387675U (fr) * 1989-12-22 1991-09-06
JP2004142802A (ja) * 2002-10-25 2004-05-20 Toppan Printing Co Ltd 剥離可能な蓋材

Also Published As

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JP2013086851A (ja) 2013-05-13

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