+

WO1998030390A1 - Stratifie d'emballage - Google Patents

Stratifie d'emballage Download PDF

Info

Publication number
WO1998030390A1
WO1998030390A1 PCT/GB1998/000044 GB9800044W WO9830390A1 WO 1998030390 A1 WO1998030390 A1 WO 1998030390A1 GB 9800044 W GB9800044 W GB 9800044W WO 9830390 A1 WO9830390 A1 WO 9830390A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
laminate according
laminate
stratum
pouch
Prior art date
Application number
PCT/GB1998/000044
Other languages
English (en)
Inventor
Andrew David Rothwell Baxter
Geir Morten Johansen
Jørn Erland OLSEN
Harald Riiber
Original Assignee
Elopak Systems Ag
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 Elopak Systems Ag filed Critical Elopak Systems Ag
Priority to AU54917/98A priority Critical patent/AU5491798A/en
Publication of WO1998030390A1 publication Critical patent/WO1998030390A1/fr

Links

Classifications

    • 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
    • B32B27/10—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 paper or cardboard
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • 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
    • 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
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/023—Optical properties
    • 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
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/42—Polarizing, birefringent, filtering
    • 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
    • B32B2307/7244—Oxygen barrier
    • 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
    • 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
    • B32B2331/00—Polyvinylesters
    • B32B2331/04—Polymers of vinyl acetate, e.g. PVA
    • 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
    • B32B2439/46—Bags

Definitions

  • EP-A-0313356 discloses a carton blank from which can be formed a carton for a food product, for example a fruit juice.
  • the blank is so composed as to provide security against leakage from the carton and against passage of gas through the wall of the carton.
  • the blank consists of a laminate comprising, from the outside to the inside, a polyolefin heat-sealing layer (specific
  • the laminate consisted of LDPE (14g. /m 2 ) /duplex paperboard (224g. /m 2 ) /LDPE (20g./m 2 ) /greaseproof paper (50g . /m 2 ) /LDPE (40g./m 2 ).
  • WO-A-92/01558 discloses a packaging carton consisting of a laminate comprising inner and outer layers which serve to stiffen the laminate, and an intermediate layer intermediate the inner and outer layers and by way of which the inner and outer layers are tied together.
  • the inner layer and the intermediate layer both serve as relatively good barriers to 0 2 migration, the intermediate layer being ethylene vinyl alcohol (EVOH) or polyamide (PA) extruded or co-extruded onto the inner layer, which comprises metallized polyethylene terephthalate (M-PET) , glass-coated PET (G-PET) , metallized oriented polypropylene (M-OPP) , G-OPP, or greaseproof paper, the coated surface of the M-PET, G-PET, M- OPP, or G-OPP, facing outwards.
  • EVOH ethylene vinyl alcohol
  • PA polyamide
  • M-PET metallized polyethylene terephthalate
  • G-PET glass-coated PET
  • M-OPP
  • an aluminium-metallized EVOH film constitutes the inner stiffening layer and has been extrusion-laminated by an intermediate low density polyethylene (LDPE) layer to the outer stiffening layer.
  • LDPE low density polyethylene
  • the laminate gives very good protection against light.
  • the innermost, heat-sealing, product- contacting layer of the laminate consists of LDPE, as does an outermost, heat-sealing layer if provided.
  • the layer arrangement of a preferred version of the one embodiment, progressing inwards is LDPE (10 'to 30g./m )/ paperboard (150 to 400g./m ) /0 2 barrier polymer (3 microns to 15 microns) (e.g. thin tie layer/EVOH or PA/thin tie layer) /M-PET, G-PET,
  • M-OPP M-OPP, G-OPP (6 microns to 25 microns), or greaseproof paper
  • LDPE (25 to 100 microns) /LDPE (10 to 70g./m 2 ).
  • An example of the one embodiment is LDPE (14g. /m 2 ) /duplex board (230g. /m 2 ) /LDPE
  • the layer arrangement is preferably LDPE (10 to 30g./m ) /duplex paperboard (150 to 400g . /m 2 ) /LDPE (10 to 50g. /m 2 ) /aluminium- metallized material, such as Al-metallized greaseproof paper or polymer film, for example Cellophane (regenerated cellulose) film or EVOH film (7 microns to 20 microns) /LDPE
  • LDPE 14g./m 2
  • duplex board 230g. /m 2
  • LDPE 25g. /m 2
  • "SURLYN" tie layer 5g./m 2
  • metallized EVOH film (12 microns)
  • "BYNEL” tie layer 5g. /m 2 ) /LDPE 30g./m 2 ).
  • O93/02862 discloses a laminating method comprising (a) applying a moisture barrier layer of LDPE to the outside of a relatively stiff substrate of paperboard to form a preliminary laminate, (b) extrusion laminating the preliminary laminate, a thermoplastics layer of LDPE and a film comprised of a barrier polymer layer, by applying the thermoplastics layer in a molten state to between the inside of the preliminary laminate and the film, and (c) applying a second moisture barrier layer of LDPE to the inside of the film.
  • the film may consist of an inner, oxygen barrier layer of EVOH and an outer, tie layer of modified LDPE; or of inner and outer, tie layers of modified LDPE and an intermediate, oxygen barrier layer of EVOH.
  • the packaging laminate may consist of the following layers: LDPE (14g./m 2 ) /paperboard/LDPE (10 to 25g. /m 2 ) /modified LDPE (3 microns) /oriented EVOH (6 microns) /modified LDPE (6g./m 2 or 3 microns) /LDPE (10 to 50g./m 2 ).
  • a packaging laminate comprising a first layer which provides a relatively good barrier to oxygen and/or aroma but a relatively poor barrier to visible light, a second layer which provides a relatively good barrier to visible light, and respective opposite surface layers which provide respective heat-sealing layers, characterized in that said surface layers provide relatively poor barriers to visible light.
  • a packaging laminate comprising a first layer which provides a relatively good barrier to oxygen and/or aroma but a relatively poor barrier to visible light, and a second layer which provides a relatively good barrier to visible light, characterized in that said second layer is comprised of a stratum of bleached pulp and a stratum of unbleached pulp.
  • a laminate which allows use of a transparent or translucent material, such as EVOH or bleached greaseproof paper, providing a good barrier to transmission of oxygen and/or aroma, with a light-sensitive product, such as fresh milk, ultra-heat-treated (UHT) milk, mineral water, and fruit juice.
  • a transparent or translucent material such as EVOH or bleached greaseproof paper
  • a light-sensitive product such as fresh milk, ultra-heat-treated (UHT) milk, mineral water, and fruit juice.
  • a packaging laminate comprising a first layer which provides a relatively poor barrier to visible light, and a second layer which provides a relatively good barrier to visible light and which is a thermoplastics adhesion layer including a dye pigment providing relatively good impermeability to visible light, characterized in that the laminate further comprises, at the opposite side of said first layer from said adhesion layer, a thermoplastics adhesion layer including a dye pigment providing a desired colour.
  • the adhesion layer can be, for example, an extruded thermoplastics used in extrusion lamination of two webs to each other or a tie layer which is a very thin layer of adhesive between two other layers of the laminate.
  • a packaging pouch formed of a laminate comprising a thermoplastics layer and, outwardly of the thermoplastics layer, a second layer, characterized in that said second layer comprises paper.
  • the inclusion of a paper layer in the laminate from which the pouch is formed has not only the advantage that the laminate has increased stiffness, giving easier handling of the laminate by the machinery used in its manufacture and by the machinery used in its conversion into pouches.
  • the paper layer can be mould paper which is relatively strong and which it is known per se to include in laminar sheets to be blow thermoformed, since the paper is elongatable to a limited extent without rupturing.
  • the paper layer can take the form of a light barrier paper layer in the event that the product to be filled into the pouch is light- sensitive.
  • the paper layer could be a layer of unbleached greaseproof paper and thus constitute a good barrier to visible light as well as to oxygen and/or aroma.
  • the paper layer provide stiffness in particular, while an additional layer, between the paper layer and the thermoplastic layer, provides in particular an oxygen and/or aroma barrier. That additional layer may be bleached greaseproof paper or a polymer such as EVOH.
  • the product which is improvedly protected, and thereby has its shelf life extended, is preferably milk or a milk- based product .
  • the oxygen and/or aroma barrier layer is at least translucent.
  • the layer should be of a material which is suitable for extrusion coating or lamination, particularly bleached greaseproof paper, or regenerated cellulose, or a polymer, for example EVOH, PA, or PET, or a polymer film having an inorganic surface coating, e.g. PET coated with silicon oxide (SiO or aluminium oxide (A10 , or OPP coated with SiO x or A10 x .
  • the visible light barrier layer is advantageously such that the transmission of light of a wavelength of 400nm does not exceed 2% and the transmission of light of a wavelength of 500nm is below 8%.
  • the layer may comprise duplex paper or board containing unbleached chemical thermomechanical pulp (CTMP) .
  • CTMP chemical thermomechanical pulp
  • the unbleached stratum of the duplex paper or board is preferably at the inner side of the paper or board, with the oxygen and/or aroma barrier layer located to the inside thereof. In this way, the visually more attractive bleached stratum is located at the outer side of the duplex paper or board.
  • the proportion of the thickness of the paper or board which is not bleached is advantageously between 20% and 70%, the higher the proportion of unbleached thickness, the better the barrier to light, which, for example in the case of milk or a milk-based product, causes the taste of the same to change .
  • the laminate does not include any metal foil layer.
  • a polymer constituting the oxygen and/or aroma barrier can be applied by, for example, extrusion coating (including co-extrusion coating), or film lamination.
  • a sealing layer is included at the very inside of the laminate, whilst another sealing layer may be included at the very outside of the laminate.
  • the laminate may additionally include a layer comprised of a mixture of a polymeric material and an inorganic filler to improve the water vapour barrier property of the laminate and to improve its pin-hole resistance.
  • filled LDPE is particularly useful.
  • a tie layer which may be such as to improve environmental stress crack resistance (ESCR) .
  • ESCR environmental stress crack resistance
  • LLDPE linear low density polyethylene
  • the tie layer, or one or each of the tie layers may incorporate a dye pigment, to provide a barrier to visible light.
  • a further layer may be included in the laminate to provide an additional barrier to water vapour and/or to add stiffness and/or to reduce scalping of flavour.
  • Polypropylene (PP) or PP-blend is particularly suitable for this purpose.
  • the further layer comprises PP, it is advantageous to use polyolefin plastomer (POP) as a low temperature sealing layer readily adherent to PP.
  • POP polyolefin plastomer
  • Figures 1 to 6 are respective diagrams of differing versions of a packaging laminate, and giving materials, exemplary "thicknesses", advantageous "thickness” ranges, and properties of layers of each version; and
  • Figure 7 is a side elevation of a pouch made from the laminate of Figure 2 or 3.
  • the laminate may take a relatively simple form, for example as shown in Figure 1, where an EVOH layer is in direct contact with an unbleached stratum of duplex board, which stratum serves as a light barrier and which board provides stiffness, and is attached by a tie layer to an inside heat-sealing layer of low density polyethylene (LDPE) , a bleached stratum of the duplex board, which stratum provides a white surface for printing, being covered by an outside heat-sealing layer of LDPE.
  • the duplex board may be of the type consisting of the following strata: bleached sulphate/unbleached CTMP/ unbleached sulphate.
  • a duplex board web is brought to a first extrusion laminator where the outside layer of LDPE is extrusion-coated onto the duplex board web.
  • the LDPE/board web is then forwarded to a second extrusion laminator where the inside of the web is co- extrusion coated with a molten film consisting of the three layers EVOH/tie/LDPE .
  • This laminate is suitable for forming liquid-packaging cartons.
  • the laminate may be of another simple form, shown in Figure 2, which differs from the form shown in Figure 1 solely in that duplex paper is included instead of duplex board, the duplex paper having an outer, bleached stratum and an inner, unbleached stratum, each of CTMP for example.
  • the manufacture of the laminate of Figure 2 corresponds to that of the laminate of Figure 1.
  • the laminate of Figure 2 is employed where relatively high stiffness of the laminate is not sought and is suitable for forming liquid-packaging pouches .
  • Figure 3 shows a laminate of a character similar to that of the laminate of Figure 2 except that bleached greaseproof paper is laminated by a layer of LDPE to the duplex paper.
  • the outside LDPE layer is formed by extrusion-coating onto the light barrier paper
  • the inside LDPE layer is formed by extrusion-coating onto the greaseproof paper
  • the LDPE/light barrier paper web and the LDPE/greaseproof paper web so formed are extrusion- laminated together at a nip by the intermediate LDPE.
  • this laminate is suitable for forming packaging pouches.
  • the laminate may be of a more complex structure, for example as illustrated in Figure 4, where, to the inside, unbleached stratum of the duplex board, is a layer of filled LDPE, for example as disclosed in our co- pending British Patent Application 9603448.3), with that layer being attached by an LLDPE tie layer to the EVOH layer, which in this case is in the form of a film, itself attached through another LLDPE tie layer to an inside, heat-sealing layer of LDPE.
  • a duplex board web is brought to a first extrusion laminator where the outside heat-sealing layer of LDPE is extrusion-coated onto the board web.
  • the LDPE/board web is then forwarded to a second extrusion laminator where filled LDPE is extruded into a nip between the LDPE/board web and an LLDPE tie/EVOH/LLDPE tie web of film form.
  • the LDPE/board/ filled LDPE/LLDPE/EVOH/LLDPE web is then forwarded to a third extrusion laminator where the inside layer of LDPE is extrusion-coated onto the exposed LLDPE layer.
  • a PP-blend layer and a POP layer (which may be DPT1450.00 from Dow Chemical Company) co-extrusion coated onto the exposed LLDPE-tie layer are provided instead of the inside LDPE layer, with the POP layer constituting the inside heat- sealing layer of the laminate.
  • a light barrier is not necessarily in the stiffness-providing layer of the laminate; it could be in another layer which is not one of the surface layers of the laminate, for example in a tie layer as illustrated in Figure 6, in which, in a laminate as disclosed in WO93/02862, a visible-light-absorbing, dye pigment, in this case carbon black, has been incorporated into the modified LDPE of the outer tie layer so that the outer tie layer serves as a good barrier to invisible light.
  • the filled and sealed pouch 20 illustrated therein has been produced by forming into a tube a web of laminate according to Figure 2 or 3, with the inner, LDPE sealing layer on the inside of the tube, forming a longitudinal sealing seam 21 along the tube while lowering the tube, continually topping-up the tube with product to below the top of the seam as the tube lowers, and repeatedly sealing the lowering tube transversely below the surface level of the product therein to ' trap doses of product among the transverse seals 22, and severing the transverse seals centrally transversely to separate the pouches from each other.
  • the consumer of the product opens the pouch 20 by cutting open a corner thereof.

Landscapes

  • Laminated Bodies (AREA)
  • Wrappers (AREA)

Abstract

L'invention concerne un stratifié d'emballage comprenant une première couche d'alcool d'éthylènevinyle ou de papier ingraissable, conçue pour former une barrière qui soit efficace contre l'oxygène et/ou l'arôme mais qui laisse passer la lumière visible. Ce stratifié comprend également une seconde couche constituée de carton ou de papier duplex blanchi ou non blanchi, ou d'une substance adhésive renfermant un pigment colorant, cette couche formant une barrière efficace contre la lumière visible. Le stratifié peut former une boîte ou un sachet d'emballage pour produit laitier.
PCT/GB1998/000044 1997-01-10 1998-01-08 Stratifie d'emballage WO1998030390A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU54917/98A AU5491798A (en) 1997-01-10 1998-01-08 A packaging laminate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9700433.7A GB9700433D0 (en) 1997-01-10 1997-01-10 A packaging laminate
GB9700433.7 1997-01-10

Publications (1)

Publication Number Publication Date
WO1998030390A1 true WO1998030390A1 (fr) 1998-07-16

Family

ID=10805782

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1998/000044 WO1998030390A1 (fr) 1997-01-10 1998-01-08 Stratifie d'emballage

Country Status (4)

Country Link
AU (1) AU5491798A (fr)
GB (1) GB9700433D0 (fr)
WO (1) WO1998030390A1 (fr)
ZA (1) ZA98181B (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004074130A1 (fr) * 2003-02-21 2004-09-02 Stora Enso Oyj Emballage de pour produits sterilises thermoscelles, materiau d'emballage et emploi de ce materiau
WO2006073341A1 (fr) * 2005-01-03 2006-07-13 Tetra Laval Holdings & Finance S.A. Stratifie d'emballage fin et receptacle d'emballage obtenu a partir de celui-ci
WO2006073343A1 (fr) * 2005-01-03 2006-07-13 Tetra Laval Holdings & Finance S.A. Stratifie d'emballage fin et receptacle d'emballage forme a partir de celui-ci
WO2006073344A1 (fr) * 2005-01-03 2006-07-13 Tetra Laval Holdings & Finance S.A. Stratifie d'emballage mince et recipient d'emballage forme a partir d'un tel stratifie
WO2006073342A1 (fr) * 2005-01-03 2006-07-13 Tetra Laval Holdings & Finance S.A. Procede de fabrication d'un stratifie d'emballage fin et procede de formation d'un receptacle d'emballage
US7329460B2 (en) 2000-04-10 2008-02-12 Stora Enso Oyj Aluminum-colored multilayer heat-sealable packaging material
WO2008094084A1 (fr) * 2007-01-29 2008-08-07 Tetra Laval Holdings & Finance S.A. Stratifié d'emballage et son procédé de fabrication du stratifié d'emballage
CN1814442B (zh) * 2005-01-31 2011-06-15 利乐拉瓦尔集团及财务有限公司 生产薄包装层压材料和形成包装容器的方法
US10822153B2 (en) 2015-03-02 2020-11-03 Societe Des Produits Nestle S.A. Visible light barrier for dairy packaging
WO2023064418A1 (fr) * 2021-10-12 2023-04-20 Westrock Mwv, Llc Structure cellulosique à barrière élevée et contenant cellulosique

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775239A (en) * 1971-05-24 1973-11-27 Rap Ind Inc Packaging material, packages and method of making same
GB2070514A (en) * 1980-02-29 1981-09-09 Smith Bros Whitehaven Ltd Method of making packaging
US4395254A (en) * 1978-10-27 1983-07-26 Schuster Samuel J Apparatus for making disposable, breathable receptacles
EP0174198A2 (fr) * 1984-09-06 1986-03-12 Fujimori Kogyo Co., Ltd. Film stratifié pour emballage
EP0291065A2 (fr) * 1987-05-14 1988-11-17 Reynolds Consumer Products, Inc. Films en polyester non orienté comme réserve de couvercle
EP0313356A2 (fr) * 1987-10-21 1989-04-26 Polycoat A/S Carton pour l'utilisation en récipients pour produits alimentaires, et stratifié
JPH03240532A (ja) * 1990-02-19 1991-10-25 Mitsubishi Plastics Ind Ltd 脱脂粉乳包装用袋体
WO1992001558A1 (fr) * 1990-07-26 1992-02-06 Elopak Systems Ag Stratifies et materiaux de conditionnement ameliores
WO1992004187A1 (fr) * 1990-09-11 1992-03-19 Enso-Gutzeit Oy Couvercle pour emballage de produit alimentaire et procede de fabrication dudit couvercle
JPH04363239A (ja) * 1991-04-04 1992-12-16 Goyo Paper Working Co Ltd ガスバリヤー性材料を用いた容器用基材
US5175036A (en) * 1991-10-11 1992-12-29 Champion International Corporation Barrier laminates for containment of flavor, essential oils and vitamins
US5213858A (en) * 1990-04-04 1993-05-25 International Paper Biodegradable paperboard laminate structure
EP0687557A2 (fr) * 1994-06-16 1995-12-20 Enso-Gutzeit Oy Couvercle pour emballage et procédé pour sa fabrication

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775239A (en) * 1971-05-24 1973-11-27 Rap Ind Inc Packaging material, packages and method of making same
US4395254A (en) * 1978-10-27 1983-07-26 Schuster Samuel J Apparatus for making disposable, breathable receptacles
GB2070514A (en) * 1980-02-29 1981-09-09 Smith Bros Whitehaven Ltd Method of making packaging
EP0174198A2 (fr) * 1984-09-06 1986-03-12 Fujimori Kogyo Co., Ltd. Film stratifié pour emballage
EP0291065A2 (fr) * 1987-05-14 1988-11-17 Reynolds Consumer Products, Inc. Films en polyester non orienté comme réserve de couvercle
EP0313356A2 (fr) * 1987-10-21 1989-04-26 Polycoat A/S Carton pour l'utilisation en récipients pour produits alimentaires, et stratifié
JPH03240532A (ja) * 1990-02-19 1991-10-25 Mitsubishi Plastics Ind Ltd 脱脂粉乳包装用袋体
US5213858A (en) * 1990-04-04 1993-05-25 International Paper Biodegradable paperboard laminate structure
WO1992001558A1 (fr) * 1990-07-26 1992-02-06 Elopak Systems Ag Stratifies et materiaux de conditionnement ameliores
WO1992004187A1 (fr) * 1990-09-11 1992-03-19 Enso-Gutzeit Oy Couvercle pour emballage de produit alimentaire et procede de fabrication dudit couvercle
JPH04363239A (ja) * 1991-04-04 1992-12-16 Goyo Paper Working Co Ltd ガスバリヤー性材料を用いた容器用基材
US5175036A (en) * 1991-10-11 1992-12-29 Champion International Corporation Barrier laminates for containment of flavor, essential oils and vitamins
EP0687557A2 (fr) * 1994-06-16 1995-12-20 Enso-Gutzeit Oy Couvercle pour emballage et procédé pour sa fabrication

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 9149, Derwent World Patents Index; Class A92, AN 91-358328, XP002044673 *
DATABASE WPI Section Ch Week 9305, Derwent World Patents Index; Class A14, AN 93-039356, XP002044672 *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7329460B2 (en) 2000-04-10 2008-02-12 Stora Enso Oyj Aluminum-colored multilayer heat-sealable packaging material
WO2004074130A1 (fr) * 2003-02-21 2004-09-02 Stora Enso Oyj Emballage de pour produits sterilises thermoscelles, materiau d'emballage et emploi de ce materiau
US8592001B2 (en) 2003-02-21 2013-11-26 Stora Enso Oyj Method of making heat-sterilised product package
WO2006073341A1 (fr) * 2005-01-03 2006-07-13 Tetra Laval Holdings & Finance S.A. Stratifie d'emballage fin et receptacle d'emballage obtenu a partir de celui-ci
WO2006073343A1 (fr) * 2005-01-03 2006-07-13 Tetra Laval Holdings & Finance S.A. Stratifie d'emballage fin et receptacle d'emballage forme a partir de celui-ci
WO2006073344A1 (fr) * 2005-01-03 2006-07-13 Tetra Laval Holdings & Finance S.A. Stratifie d'emballage mince et recipient d'emballage forme a partir d'un tel stratifie
WO2006073342A1 (fr) * 2005-01-03 2006-07-13 Tetra Laval Holdings & Finance S.A. Procede de fabrication d'un stratifie d'emballage fin et procede de formation d'un receptacle d'emballage
CN1814442B (zh) * 2005-01-31 2011-06-15 利乐拉瓦尔集团及财务有限公司 生产薄包装层压材料和形成包装容器的方法
WO2008094084A1 (fr) * 2007-01-29 2008-08-07 Tetra Laval Holdings & Finance S.A. Stratifié d'emballage et son procédé de fabrication du stratifié d'emballage
RU2445247C2 (ru) * 2007-01-29 2012-03-20 Тетра Лаваль Холдингз Энд Файнэнс С.А. Упаковочный ламинат и способ его получения
US10822153B2 (en) 2015-03-02 2020-11-03 Societe Des Produits Nestle S.A. Visible light barrier for dairy packaging
WO2023064418A1 (fr) * 2021-10-12 2023-04-20 Westrock Mwv, Llc Structure cellulosique à barrière élevée et contenant cellulosique

Also Published As

Publication number Publication date
ZA98181B (en) 1998-07-10
AU5491798A (en) 1998-08-03
GB9700433D0 (en) 1997-02-26

Similar Documents

Publication Publication Date Title
EP0540637B1 (fr) Stratifies et materiaux de conditionnement ameliores
CA1251719A (fr) Stratifie d'emballage
RU2732270C2 (ru) Ламинированный упаковочный материал и произведенные из него упаковочные емкости
EP3383641B1 (fr) Matériau d'emballage stratifié, contenants d'emballage fabriqués à partir de celui-ci et procédé de fabrication de ce matériau stratifié
US5552002A (en) Method for making paperboard packaging containing a PVOH barrier
EP3380320B1 (fr) Procédé de fabrication d'un matériau d'emballage stratifié, matériau d'emballage obtenu par ce procédé et contenants d'emballage fabriqués à partir de ceux-ci
EP3169518B1 (fr) Procede de fabrication d'un materiau d'emballage stratifie, et materiau d'emballage stratifie
US7276281B2 (en) Containers prepared from laminate structures having a foamed polymer layer
US4364989A (en) Snack food packaging material
US20030091847A1 (en) Tear resistant heat sealable packaging structure
US20030186069A1 (en) Barrier structure for food
US5413845A (en) Laminated material with gas barrier properties
US20070077417A1 (en) Tear resistant sealable packaging structure
WO1998030390A1 (fr) Stratifie d'emballage
JP2661684B2 (ja) 精油、香味、酸素、およびビタミンの容器収納のための障壁ラミネート、およびそれから製造されたカートン
AU710893B2 (en) A packaging laminate and a method of producing the packaging laminate, and a packaging container produced from the packaging laminate and possessing superior oxygen gas barrier properties
EP4253047A1 (fr) Matériau d'emballage stratifié et récipient d'emballage fabriqué à partir de celui-ci
JP4155426B2 (ja) 紙容器用包材
JPH04234645A (ja) 板紙容器およびその製造方法
EP4534286A1 (fr) Matériau d'emballage stratifié, récipient d'emballage comprenant le matériau d'emballage stratifié, et procédés de fabrication du matériau et du récipient
AU657270C (en) Improvements in or relating to laminates and packaging materials
JP2005022740A (ja) 包装材料

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU JP MX UA US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: JP

Ref document number: 1998530642

Format of ref document f/p: F

122 Ep: pct application non-entry in european phase
点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载