JP2008149654A - Laminated packaging material and packaging bag - Google Patents

Laminated packaging material and packaging bag Download PDF

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Publication number
JP2008149654A
JP2008149654A JP2006342435A JP2006342435A JP2008149654A JP 2008149654 A JP2008149654 A JP 2008149654A JP 2006342435 A JP2006342435 A JP 2006342435A JP 2006342435 A JP2006342435 A JP 2006342435A JP 2008149654 A JP2008149654 A JP 2008149654A
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layer
packaging material
laminated packaging
low
resin layer
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JP4935338B2 (en
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Shinji Nakatsuka
慎二 中司
Makoto Onishi
誠 大西
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Toppan Inc
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Toppan Printing Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72324—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of inorganic materials not provided for in B29C66/72321 - B29C66/72322
    • B29C66/72325—Ceramics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7234—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a barrier layer
    • B29C66/72341—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a barrier layer for gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/939—Measuring or controlling the joining process by measuring or controlling the speed characterised by specific speed values or ranges

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)
  • Bag Frames (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a laminated packaging material having excellent gas barrier property and high-speed sealability and having a function hard to block a packaged content article, and to provide a packaging bag formed of the laminated packaging material. <P>SOLUTION: In the laminated packaging material made by laminating at least a sealant layer on one surface of a base material layer, the base material layer is formed of a barrier film having an oxygen transmittance of 200 ml/m<SP>2</SP>.24hr.MPa or less, the sealant layer is formed by providing minute concave-convex on the front surface entirety of the low temperature sealable resin layer of a polyolefin co-extrusion material layer film of a low-temperature sealable resin layer of the side contacting the content article, the low-temperature sealable resin layer is formed of a low-temperature sealable polypropylene resin, and the fine concave-convex has the height of the convex of 10 to 100 μm, and the interval of the convexes of 0.1 to 1.1 mm. The packaging bag is formed of the laminated packaging material. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、包装した内容物と内面がブロッキングし難い機能を有する積層包装材料及びそれを用いた包装袋に関するものである。   The present invention relates to a laminated packaging material having a function in which the packaged contents and the inner surface are difficult to block, and a packaging bag using the same.

食品や医薬品等の包装に用いられる積層包装材料には、種々の機能が要求される。通常、優れたガスバリア性や内容物を高速で充填包装できる機能などが要求されるが、その他の特殊な機能として、包装した内容物が積層包装材料からなる袋の内面と密着し、ブロッキングしやすいものの場合は、袋の内面に内容物とブロッキングしにくい機能が要求される。前記の特殊な機能を有するものとして、内容物と接する面に凹凸を設けた包装用材料が提案されている（例えば、特許文献１参照。）。
実開平２−１２７４３２号公報 Various functions are required for laminated packaging materials used for packaging foods and pharmaceuticals. Usually, excellent gas barrier properties and the ability to fill and wrap the contents at high speed are required. However, as another special function, the packaged contents are in close contact with the inner surface of the bag made of laminated packaging material and easily blocked. In the case of a thing, the function which is hard to block the contents on the inner surface of the bag is required. As a material having the above-mentioned special function, a packaging material provided with unevenness on the surface in contact with the contents has been proposed (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 2-127432

しかしながら、前記提案されている包装用材料は、袋内面と内容物とのブロッキングは少ないが、内容物と接する面が高耐熱性樹脂からなっている為に、内容物の高速自動充填包装適性が劣るなどの問題があった。   However, the proposed packaging material has little blocking between the inner surface of the bag and the contents, but since the surface in contact with the contents is made of a high heat-resistant resin, the packaging material is suitable for high-speed automatic filling and packaging. There were problems such as inferiority.

本発明の課題は、優れたガスバリア性と高速シール性を有すると共に、包装した内容物がブロッキングし難い機能を有する積層包装材料及びその積層包装材料からなる包装袋を提供することにある。   An object of the present invention is to provide a laminated packaging material having a gas barrier property and a high-speed sealing property, and having a function that the packaged contents are difficult to block, and a packaging bag made of the laminated packaging material.

本発明の請求項１に係る発明は、基材層の一方の面に少なくとも、シーラント層を積層してなる積層包装材料において、該基材層が酸素透過度２００ｍｌ／ｍ2・２４ｈ・ＭＰａ以下のバリアフィルムからなり、該シーラント層が少なくとも、内容物に接する側が低温シール性樹脂層であるポリオレフィン系共押出多層フィルムの低温シール性樹脂層の表面全体に微細な凹凸を設けたものからなることを特徴とする積層包装材料である。 The invention according to claim 1 of the present invention is the laminated packaging material formed by laminating at least one sealant layer on one surface of the base material layer, and the base material layer has an oxygen permeability of 200 ml / m 2 · 24 h · MPa or less. The sealant layer is at least provided with fine irregularities on the entire surface of the low-temperature sealable resin layer of the polyolefin-based coextruded multilayer film in which the side in contact with the contents is a low-temperature sealable resin layer Is a laminated packaging material characterized by

本発明の請求項２に係る発明は、上記請求項１に係る発明において、前記低温シール性樹脂層が低温シール性ポリプロピレン樹脂からなることを特徴とする積層包装材料である。   The invention according to claim 2 of the present invention is the laminated packaging material according to the invention according to claim 1, wherein the low-temperature sealable resin layer is made of a low-temperature sealable polypropylene resin.

本発明の請求項３に係る発明は、上記請求項１又は請求項２に係る発明において、前記微細な凹凸が、山の高さが１０〜１００μｍで、山の間隔が０．１〜１．１ｍｍの凹凸であることを特徴とする積層包装材料である。   The invention according to claim 3 of the present invention is the invention according to claim 1 or 2, wherein the fine unevenness has a peak height of 10 to 100 μm and a peak interval of 0.1 to 1. It is a laminated packaging material characterized by unevenness of 1 mm.

本発明の請求項４に係る発明は、上記請求項１乃至請求項３のいずれか１項記載の積層包装材料を用いて製袋したものからなることを特徴とする包装袋である。   The invention according to claim 4 of the present invention is a packaging bag comprising a bag made using the laminated packaging material according to any one of claims 1 to 3.

本発明の積層包装材料は、基材層の一方の面に少なくとも、シーラント層を積層してなる積層包装材料において、該基材層が酸素透過度２００ｍｌ／ｍ2・２４ｈ・ＭＰａ以下のバリアフィルムからなり、該シーラント層が少なくとも、内容物に接する側が低温シール性樹脂層であるポリオレフィン系共押出多層フィルムの低温シール性樹脂層の表面全体
に微細な凹凸を設けたものからなり、前記微細な凹凸が、山の高さが１０〜１００μｍで、山の間隔が０．１〜１．１ｍｍの凹凸であるので、優れたガスバリア性及び高速シール性を有すると共に、シーラント層と内容物とがブロッキングし難い。また、低温シール性樹脂層として、低温シール性ポリプロピレン樹脂を使用すれば、耐油性も向上する。よって、前記積層包装材料を用いて製袋したものからなる包装袋は、袋内面へ内容物が密着し、ブロッキングするのを嫌う商品の包装分野で広く利用される。 The laminated packaging material of the present invention is a laminated packaging material obtained by laminating at least a sealant layer on one surface of a base material layer, and the base material layer has a barrier film having an oxygen permeability of 200 ml / m 2 · 24 h · MPa or less. The sealant layer comprises at least the surface of the low-temperature sealable resin layer of the polyolefin-based coextruded multilayer film in which the side in contact with the contents is a low-temperature sealable resin layer, and has the fine unevenness. Since the unevenness is an unevenness having a crest height of 10 to 100 μm and a crest interval of 0.1 to 1.1 mm, it has excellent gas barrier properties and high-speed sealing properties, and the sealant layer and contents are blocked. It is hard to do. Moreover, if low temperature sealing polypropylene resin is used as a low temperature sealing resin layer, oil resistance will also improve. Therefore, a packaging bag made of a bag made using the laminated packaging material is widely used in the packaging field of commodities that do not want to be blocked by the contents closely contacting the inner surface of the bag.

本発明の積層包装材料を、実施の形態に沿って以下に詳細に説明する。図１は本発明の積層包装材料の一実施形態を示す側断面図であり、積層包装材料（１０）は厚み方向に順に、基材層（１１）、接着剤層（１２）、シーラント層（１３）を積層した構成で、前記シーラント層（１３）は、基材層（１１）側から厚み方向に順に耐熱性樹脂層（１３ａ）、中間樹脂層（１３ｂ）、低温シール性樹脂層（１３ｃ）を積層した構成のポリオレフィン系共押出３層フィルムからなっており、前記低温シール性樹脂層（１３ｃ）の表面全体には山の高さがｈで、山の間隔がｄの微細な凹凸（１４）が設けられている。   The laminated packaging material of the present invention will be described in detail below along the embodiments. FIG. 1 is a side sectional view showing an embodiment of the laminated packaging material of the present invention. The laminated packaging material (10) is composed of a base material layer (11), an adhesive layer (12), and a sealant layer (in order of thickness). 13), the sealant layer (13) includes a heat-resistant resin layer (13a), an intermediate resin layer (13b), and a low-temperature sealing resin layer (13c) in order from the base material layer (11) in the thickness direction. ) Are laminated, and the entire surface of the low-temperature sealing resin layer (13c) is a fine unevenness having a height of peaks of h and a spacing of peaks of d. 14).

前記シーラント層（１３）は、ポリオレフィン系共押出３層フィルムに限定されず、片方の最外層が低温シール性樹脂層であれば２層構成でもよく、さらに４層以上の構成でも良い。   The sealant layer (13) is not limited to the polyolefin-based coextruded three-layer film, and may have a two-layer structure or a four-layer structure or more as long as one outermost layer is a low-temperature sealing resin layer.

前記低温シール性樹脂層（１３ｃ）に設ける凹凸（１４）のｈ及びｄの数値は、ｈが１０〜１００μｍで、ｄが０．１〜１．１ｍｍであることが好ましい。前記形状の凹凸（１４）を有することで、内容物とシーラント層が全面で密着することがなくなり、内容物とシーラント層がブロックングし難くなる。ｈが１０μｍ未満で、ｄが０．１ｍｍ未満の場合は内容物とブロッキングしやすくなり、ｈが１００μｍ以上で、ｄが１．１ｍｍ以上の場合はシール性が低下したりするので良くない。   As for the numerical values of h and d of the unevenness (14) provided on the low temperature sealing resin layer (13c), h is preferably 10 to 100 μm and d is preferably 0.1 to 1.1 mm. By having the unevenness (14) of the shape, the contents and the sealant layer do not adhere to each other, and the contents and the sealant layer are difficult to block. When h is less than 10 μm and d is less than 0.1 mm, it is easy to block the contents, and when h is 100 μm or more and d is 1.1 mm or more, the sealing performance is deteriorated.

前記耐熱性樹脂層（１３ａ）には、主に、耐熱性ポリプロピレン樹脂が使用され、中間樹脂層（１３ｂ）には、主に、高密度ポリエチレン樹脂やホモポリプロピレン樹脂が使用され、低温シール性樹脂層（１３ｃ）には、低温シール性を有するエチレン系樹脂や共重合ポリプロピレン樹脂が使用されるが、共重合ポリプロピレン樹脂の方が耐油性が優れるので好ましい。   A heat-resistant polypropylene resin is mainly used for the heat-resistant resin layer (13a), and a high-density polyethylene resin or a homopolypropylene resin is mainly used for the intermediate resin layer (13b). For the layer (13c), an ethylene-based resin or a copolymerized polypropylene resin having a low-temperature sealing property is used, but the copolymerized polypropylene resin is preferable because of its excellent oil resistance.

前記基材層（１）は、酸素透過度が２００ｍｌ／ｍ2・２４ｈ・ＭＰａ以下のバリアフィルムからなっている。例えば、塩化ビニリデンコート二軸延伸ポリプロピレンフィルム、塩化ビニリデンコート二軸延伸ナイロンフィルム、塩化ビニリデンコート二軸延伸ポリエステルフィルム、二軸延伸ポリエステルフィルム又は二軸延伸ナイロンフィルムの片面に少なくとも、酸化珪素や酸化アルミニウムなどの無機酸化物蒸着薄膜を積層したバリア性積層フィルムなどが使用可能であり、積層包装材料に優れたガスバリア性を付与できる。 The base material layer (1) is made of a barrier film having an oxygen permeability of 200 ml / m 2 · 24 h · MPa or less. For example, at least one surface of silicon oxide or aluminum oxide on one side of a vinylidene chloride coated biaxially stretched polypropylene film, vinylidene chloride coated biaxially stretched nylon film, vinylidene chloride coated biaxially stretched polyester film, biaxially stretched polyester film or biaxially stretched nylon film A barrier laminate film obtained by laminating an inorganic oxide vapor-deposited thin film such as can be used, and excellent gas barrier properties can be imparted to the laminate packaging material.

前記接着剤層（１２）には、ポリウレタン系接着剤を使用する。通常、水酸基を持った主剤とイソシアネート基を持った硬化剤とを２液混合して使用する２液型が使用される。その積層方法は公知のグラビアコート方式で積層し、塗布量は１〜５ｇ／ｍ2（乾燥状態）が良い。 A polyurethane-based adhesive is used for the adhesive layer (12). Usually, a two-component type is used in which a main component having a hydroxyl group and a curing agent having an isocyanate group are mixed in two components. The lamination method is carried out by a known gravure coating method, and the coating amount is preferably 1 to 5 g / m 2 (dry state).

本発明の包装袋は、本発明の積層包装材料を用いて製袋したものからなっており、三方シール袋、合掌シール袋、自立性袋、ガセット袋などの形態のものがある。   The packaging bag of the present invention is made of a bag made using the laminated packaging material of the present invention, and may be in the form of a three-side seal bag, a joint seal bag, a self-supporting bag, a gusset bag, or the like.

図２は本発明の一実施形態の包装袋に内容物を充填密封した状態を示す断面説明図であ
り、前記積層包装材料（１０）からなる包装袋（２０）には中に内容物（３０）が充填され、シール部（２１、２２）が設けられて密封されている。内容物（３０）は積層包装材料（１０）のシーラント層（１３）の低温シール性樹脂層（１３ｃ）面に接しているが、低温シール性樹脂層（１３ｃ）が表面に凹凸（１４）を有しているので、表面全体が密着せず、ブロッキングしないようになっている。 FIG. 2 is a cross-sectional explanatory view showing a state in which the packaging bag of one embodiment of the present invention is filled and sealed with the contents, and the packaging bag (20) made of the laminated packaging material (10) contains the contents (30 ), And sealing portions (21, 22) are provided and sealed. The content (30) is in contact with the low temperature sealing resin layer (13c) surface of the sealant layer (13) of the laminated packaging material (10), but the low temperature sealing resin layer (13c) has irregularities (14) on the surface. As a result, the entire surface does not adhere and does not block.

本発明の積層包装材料の一実施形態を示す側断面図である。It is a sectional side view which shows one Embodiment of the laminated packaging material of this invention. 本発明の包装袋に内容物を充填密封した状態を示す断面説明図である。It is sectional explanatory drawing which shows the state which filled and sealed the content in the packaging bag of this invention.

符号の説明Explanation of symbols

１０…積層包装材料
１１…基材層
１２…接着剤層
１３…シーラント層
１３ａ…耐熱性樹脂層
１３ｂ…中間樹脂層
１３ｃ…低温シール性樹脂層
１４…凹凸
２０…包装袋
２１，２２…シール部
３０…内容物
ｈ…山の高さ
ｄ…山の間隔 DESCRIPTION OF SYMBOLS 10 ... Laminated packaging material 11 ... Base material layer 12 ... Adhesive layer 13 ... Sealant layer 13a ... Heat-resistant resin layer 13b ... Intermediate resin layer 13c ... Low temperature sealing resin layer 14 ... Concavity and convexity 20 ... Packaging bags 21, 22 ... Seal part 30 ... Contents h ... Mountain height d ... Mountain spacing

Claims (4)

基材層の一方の面に少なくとも、シーラント層を積層してなる積層包装材料において、該基材層が酸素透過度２００ｍｌ／ｍ2・２４ｈ・ＭＰａ以下のバリアフィルムからなり、該シーラント層が少なくとも、内容物に接する側が低温シール性樹脂層であるポリオレフィン系共押出多層フィルムの低温シール性樹脂層の表面全体に微細な凹凸を設けたものからなることを特徴とする積層包装材料。 In a laminated packaging material obtained by laminating at least one sealant layer on one surface of the base material layer, the base material layer is composed of a barrier film having an oxygen permeability of 200 ml / m 2 · 24 h · MPa or less, and the sealant layer is at least A laminated packaging material comprising a polyolefin co-extruded multi-layer film whose side in contact with the contents is a low-temperature sealable resin layer provided with fine irregularities on the entire surface of the low-temperature sealable resin layer. 前記低温シール性樹脂層が低温シール性ポリプロピレン樹脂からなることを特徴とする請求項１記載の積層包装材料。   The laminated packaging material according to claim 1, wherein the low temperature sealing resin layer is made of a low temperature sealing polypropylene resin. 前記微細な凹凸が、山の高さが１０〜１００μｍで、山の間隔が０．１〜１．１ｍｍの凹凸であることを特徴とする請求項１又は請求項２記載の積層包装材料。   The laminated packaging material according to claim 1 or 2, wherein the fine irregularities are irregularities having a crest height of 10 to 100 µm and a crest interval of 0.1 to 1.1 mm. 請求項１乃至請求項３のいずれか１項記載の積層包装材料を用いて製袋したものからなることを特徴とする包装袋。   A packaging bag comprising the bag made using the laminated packaging material according to any one of claims 1 to 3.
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10305504A (en) * 1997-05-02 1998-11-17 Dainippon Printing Co Ltd Laminated body for sterilizing pouch
JPH11198311A (en) * 1998-01-08 1999-07-27 Sekisui Chem Co Ltd Multilayered sealant film and composite packaging material using the same
JP2000355068A (en) * 1999-06-15 2000-12-26 Dainippon Printing Co Ltd Laminate for packaging ham and sausage
JP2002542073A (en) * 1999-04-16 2002-12-10 東洋紡績株式会社 Polypropylene multilayer sealant film for retort
JP2003181962A (en) * 2001-12-20 2003-07-03 Fujimori Kogyo Co Ltd Packaging film and method for forming heat seal layer
JP2004050605A (en) * 2002-07-19 2004-02-19 Dainippon Printing Co Ltd Laminate
JP2004167956A (en) * 2002-11-22 2004-06-17 Dainippon Printing Co Ltd Laminated body, and packaging container using the same
JP2006143269A (en) * 2004-11-19 2006-06-08 Dainippon Printing Co Ltd Packaging bag and package using it

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10305504A (en) * 1997-05-02 1998-11-17 Dainippon Printing Co Ltd Laminated body for sterilizing pouch
JPH11198311A (en) * 1998-01-08 1999-07-27 Sekisui Chem Co Ltd Multilayered sealant film and composite packaging material using the same
JP2002542073A (en) * 1999-04-16 2002-12-10 東洋紡績株式会社 Polypropylene multilayer sealant film for retort
JP2000355068A (en) * 1999-06-15 2000-12-26 Dainippon Printing Co Ltd Laminate for packaging ham and sausage
JP2003181962A (en) * 2001-12-20 2003-07-03 Fujimori Kogyo Co Ltd Packaging film and method for forming heat seal layer
JP2004050605A (en) * 2002-07-19 2004-02-19 Dainippon Printing Co Ltd Laminate
JP2004167956A (en) * 2002-11-22 2004-06-17 Dainippon Printing Co Ltd Laminated body, and packaging container using the same
JP2006143269A (en) * 2004-11-19 2006-06-08 Dainippon Printing Co Ltd Packaging bag and package using it

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