JP2009214919A - Packaging material and bag made thereof - Google Patents

Packaging material and bag made thereof Download PDF

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JP2009214919A
JP2009214919A JP2008062352A JP2008062352A JP2009214919A JP 2009214919 A JP2009214919 A JP 2009214919A JP 2008062352 A JP2008062352 A JP 2008062352A JP 2008062352 A JP2008062352 A JP 2008062352A JP 2009214919 A JP2009214919 A JP 2009214919A
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layer
light
shielding
packaging material
ink
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Sachiko Kagawa
幸子 香川
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Toppan Inc
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Toppan Printing Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging material needing a light-shielding property for protecting contents which has a little smell and a metal detecting property and can be manufactured at a low cost. <P>SOLUTION: In the packaging material, a base film layer as the outermost layer and a heat adhesive resin layer as the innermost layer are stacked and a light-shielding barrier layer is provided on the whole face or partly between the layers, the light-shielding barrier layer is provided by stacking a light-shielding ink layer or the light-shielding ink layer with a gas barrier coat layer or a gas barrier adhesive layer. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、内容物の保護に遮光性が必要な包装材料分野に関し、特には、包装材料臭が少なく、金属探知機適性も持ち合わせた包装材料を安価に提供する技術に関する。   The present invention relates to the field of packaging materials that need light-shielding properties to protect the contents, and in particular, relates to a technology that provides a packaging material with low packaging material odor and suitability for metal detectors at low cost.

内容物の光による変質を防ぐため、包装材料に遮光性を要する場合がある。包装材料に遮光性を付与する手法としては、先ず、アルミ箔の積層やフィルム基材へのアルミ蒸着加工という手法があるが、コストアップとなる他、梱包後は金属探知機が使用出来ない、内容物を視認出来ないというデメリットがある。特に、アルミ箔の積層に関しては腰が硬くなりピンホールが発生しやすくなるというデメリットもある。   In order to prevent deterioration of the contents due to light, the packaging material may require light shielding properties. As a method of imparting light shielding properties to the packaging material, first, there is a method of aluminum foil lamination and aluminum deposition processing on the film substrate, but it increases the cost, and after packing, a metal detector cannot be used. There is a demerit that the contents cannot be seen. In particular, regarding the lamination of aluminum foil, there is a demerit that the waist becomes stiff and pinholes are likely to occur.

視認性を付与するために部分的にアルミ蒸着層を積層する手法として、蒸着時に邪魔板を設けることでフィルム基材の流れ方向にストライプ状に蒸着層を設ける手法があり、特にスライスチーズの外装材用途として多く用いられているが、この手法もやはりコストアップとなることと、特殊な生産設備を要する為に一般包装材料に汎用的には用いられていない。
また、部分・全面に限らずアルミ蒸着を積層した構成では、基材と蒸着層間の密着が得られない場合が多く、包装材料強度への影響も懸念される。
As a method of partially laminating an aluminum vapor deposition layer in order to provide visibility, there is a method of providing a vapor deposition layer in a stripe shape in the flow direction of the film substrate by providing a baffle plate during vapor deposition, especially the exterior of sliced cheese Although this method is often used as a material, it is not widely used for general packaging materials because it also increases costs and requires special production equipment.
Moreover, in the structure which laminated | stacked aluminum vapor deposition not only in the part and the whole surface, adhesion | attachment between a base material and a vapor deposition layer is often not obtained, but there is also a concern about the influence on packaging material intensity | strength.

これに対し、絵柄を印刷する際、同時に遮光性を有する顔料を分散させたインキ層を積層することで、全面または部分的に遮光性を付与する手法がある。特に、UV領域以外の400〜500nmの可視領域の光線透過を低減する必要がある油脂やビタミン類を含む内容物に対しては、UVカットインキと黄色顔料インキの積層や、アルミニウムペーストを分散したインキを遮光インキ層として積層することが効果的である。特に、絵柄インキの色味に影響しがたく、UV吸収顔料などの特殊材料を用いずにこの領域の光線透過を低減できるシルバー色は積層色として汎用性があり、特許文献1にも見られるような高輝度で隠蔽性の高い印刷インキが使用できる。   On the other hand, when printing a pattern, there is a method of providing light shielding properties entirely or partially by laminating ink layers in which pigments having light shielding properties are simultaneously dispersed. In particular, for contents containing fats and vitamins that need to reduce light transmission in the visible region of 400 to 500 nm other than the UV region, a laminate of UV cut ink and yellow pigment ink or an aluminum paste is dispersed. It is effective to laminate the ink as a light shielding ink layer. In particular, the silver color which does not affect the color of the pattern ink and can reduce the light transmission in this region without using a special material such as a UV absorbing pigment is versatile as a laminated color. Such high-intensity and high concealment printing inks can be used.

シルバー色を付与する為のアルミペースト材料は、アルミニウム由来の高輝度性・隠蔽性を付与するため、金属表面の酸化を回避し、インキビヒクル中に均一に分散するために、アルミ薄膜または細粉をステアリン酸、オレイン酸などの有機脂肪酸、セルロース誘導体、メチルシリルイソシアネート、ミネラルスピリッツなどの石油系有機溶媒と練肉して表面改質しているが、印刷乾燥時にこれらの油状成分や、積層したアルミ顔料層内に滞留したインキ溶媒成分が不揮発成分として包装材料に残留し、包装材料の異臭原因となってしまうという問題がある。   Aluminum paste material for imparting silver color provides high brightness and concealment derived from aluminum, avoids oxidation of the metal surface, and disperses uniformly in the ink vehicle. Is surface-modified by kneading with organic fatty acids such as stearic acid and oleic acid, petroleum derivatives such as cellulose derivatives, methylsilyl isocyanate, and mineral spirits. There is a problem that the ink solvent component staying in the aluminum pigment layer remains in the packaging material as a non-volatile component and causes a bad odor of the packaging material.

インキタイプを有機溶媒系から水−アルコール溶媒系に代替することで残留臭気は低減可能だが、水−アルコール系溶媒では有機溶媒と比べ乾燥に2倍以上の熱エネルギーを要することより加工スピードが上がらず加工コストが非常に厳しい。また印刷適性上の問題も多く必要とする遮光性能を安定的に付与することが厳しいため、遮光包装材料用途での汎用性は低い。
特開2002−20668号公報 特開2004−323731号公報 特開2006−63139号公報 特許第3438266号公報 特開2005−139436号公報 特開2005−139435号公報 特開2004−10655号公報
Residual odor can be reduced by replacing the ink type from an organic solvent system to a water-alcohol solvent system, but the water-alcohol solvent increases the processing speed because it requires more than twice the heat energy for drying compared to an organic solvent. The processing cost is very strict. In addition, since it is difficult to stably provide light-shielding performance that requires many problems in printability, versatility in light-shielding packaging material applications is low.
JP 2002-20668 A JP 2004-323731 A JP 2006-63139 A Japanese Patent No. 3438266 JP-A-2005-139436 JP-A-2005-139435 JP 2004-10655 A

本発明の課題は、内容物の保護に遮光性が必要な包装材料において、包装材料臭が少なく、金属探知機適性も持ち合わせた安価に製造できる包装材料を提供することである。 SUMMARY OF THE INVENTION An object of the present invention is to provide a packaging material that can be manufactured at a low cost, with a packaging material that needs light-shielding properties to protect the contents, and has a low packaging material odor and also has suitability for a metal detector.

本発明の請求項1の発明は、フィルム基材層を最外層とし、熱接着性樹脂層を最内層として積層され、その層間に全面または部分的に遮光バリア層が設けられていることを特徴とする包装材料である。
本発明の請求項2の発明は、遮光バリア層が遮光インキ層とガスバリアコート層の積層により設けられていることを特徴とする請求項1記載の包装材料である。
本発明の請求項3の発明は、遮光バリア層が遮光インキ層とガスバリア接着剤層の積層により設けられていることを特徴とする請求項1記載の包装材料である。
本発明の請求項4の発明は、遮光バリア層が遮光顔料をガスバリアコート層に分散させた遮光インキ層からなることを特徴とする請求項1記載の包装材料である。
本発明の請求項5の発明は、遮光インキ層に分散されている顔料がステアリン酸、オレイン酸などの有機脂肪酸、セルロース誘導体、メチルシリルイソシアネート、ミネラルスピリッツなどの石油系有機溶媒との練肉により表面処理されたアルミニウム細粉または薄膜砕片であり、遮光領域に含有される金属量が0.05〜1.5g/m2であることを特徴とする請求項2から4のいずれか1項に記載の包装材料である。
本発明の請求項6の発明は、遮光インキ層がポリウレタン樹脂をビヒクルの主成分とし、ポリイソシアナート化合物を含有することを特徴とする請求項2から5のいずれか1項に記載の包装材料である。
本発明の請求項7の発明は、ガスバリア層がポリウレタン樹脂組成物からなり、ウレタン基およびウレア基濃度の合計が15質量%以上であり、且つ酸基を有するポリウレタン樹脂と、ポリアミン化合物とを含む水性ポリウレタン樹脂からなることを特徴とする請求項1から6のいずれか1項に記載の包装材料である。
本発明の請求項8の発明は、フィルム基材層と遮光バリア層の間に絵柄インキ層を設け、遮光バリア層と熱接着性樹脂層の間に接着層を設けたことを特徴とする請求項1から7のいずれか1項に記載の包装材料およびその袋体である。
The invention of claim 1 of the present invention is characterized in that a film base material layer is used as an outermost layer and a heat-adhesive resin layer is used as an innermost layer, and a light-shielding barrier layer is provided entirely or partially between the layers. It is a packaging material.
The invention according to claim 2 of the present invention is the packaging material according to claim 1, wherein the light shielding barrier layer is provided by laminating a light shielding ink layer and a gas barrier coat layer.
A third aspect of the present invention is the packaging material according to the first aspect, wherein the light shielding barrier layer is provided by laminating a light shielding ink layer and a gas barrier adhesive layer.
The invention according to claim 4 of the present invention is the packaging material according to claim 1, wherein the light-shielding barrier layer comprises a light-shielding ink layer in which a light-shielding pigment is dispersed in a gas barrier coat layer.
According to a fifth aspect of the present invention, the pigment dispersed in the light-shielding ink layer is formed by grinding with an organic fatty acid such as stearic acid or oleic acid, a petroleum derivative such as cellulose derivative, methylsilyl isocyanate, or mineral spirits. The surface-treated aluminum fine powder or thin film fragment, and the amount of metal contained in the light-shielding region is 0.05 to 1.5 g / m 2 , The packaging material described.
The invention according to claim 6 of the present invention is the packaging material according to any one of claims 2 to 5, wherein the light-shielding ink layer comprises a polyurethane resin as a main component of the vehicle and a polyisocyanate compound. It is.
According to a seventh aspect of the present invention, the gas barrier layer is made of a polyurethane resin composition, the total concentration of urethane groups and urea groups is 15% by mass or more, and includes a polyurethane resin having an acid group and a polyamine compound. The packaging material according to any one of claims 1 to 6, comprising an aqueous polyurethane resin.
The invention of claim 8 of the present invention is characterized in that a pattern ink layer is provided between the film base layer and the light shielding barrier layer, and an adhesive layer is provided between the light shielding barrier layer and the heat-adhesive resin layer. Item 8. The packaging material according to any one of Items 1 to 7, and a bag body thereof.

本発明の包装材料は、金属層を含まないフィルム基材層と熱接着性樹脂層の層間に遮光バリア層が設けられていることを特徴とする包装材料である。この包装材料で包装された容器は、インキ層もしくは接着層を積層する工程で、紫外領域から380〜500nmの可視領域において高い遮光性を付与することが出来る。   The packaging material of the present invention is a packaging material characterized in that a light-shielding barrier layer is provided between the film base material layer not including the metal layer and the heat-adhesive resin layer. A container packaged with this packaging material can provide high light-shielding properties in the visible region from the ultraviolet region to 380 to 500 nm in the step of laminating an ink layer or an adhesive layer.

従来のアルミ蒸着層による遮光包装材料と比べ、特殊な加工・工程を要さないことから低コストで遮光性を付与することが出来、また、使用金属量も低減できることから金属異物探知機を使用することも可能である。また、部分的に遮光性を付与できることから、視認用の窓部を設けることも容易である。   Compared to conventional light-shielding packaging materials using an aluminum vapor deposition layer, special processing and processes are not required, so light-shielding performance can be imparted at low cost and the amount of metal used can be reduced. It is also possible to do. In addition, since a light-shielding property can be partially provided, it is easy to provide a visual window part.

従来の遮光インキ構成、特に高い遮光性を有するがインキ由来の臭気が問題となり易い銀インキや有機系UV吸収剤を用いたインキ構成と比べ、遮光インキ層由来の異臭を低減させることが出来る。また、低臭遮光インキとして水性インキを用いた構成と比べ、生産性を低下させることなく加工が可能、大ロット連続生産においても安定して高い遮光性を付与することが可能である。   Compared to the conventional light-shielding ink constitution, particularly the ink constitution using silver ink or organic UV absorber, which has a high light-shielding property but the odor derived from the ink tends to be a problem, the off-flavor originating from the light-shielding ink layer can be reduced. In addition, as compared with a configuration using a water-based ink as a low-odor light-shielding ink, processing can be performed without reducing productivity, and high light-shielding performance can be stably imparted even in large lot continuous production.

また、特にウレタン系のバリア層を用いることにより、PVAやPVDCなど他のバリアコートを使用した構成と比べ、湿度依存性が低く安定した低臭性を付与することが出来、隣接したインキ層や接着剤層との密着適性が良い為、高い包装材料強度を保つことが出来、従来の包装材料と同様に扱うことが可能で、極めて実用的である。   In particular, by using a urethane-based barrier layer, compared to a configuration using other barrier coats such as PVA and PVDC, it is possible to give a stable low odor with low humidity dependency, and an adjacent ink layer or Since the adhesiveness with the adhesive layer is good, high packaging material strength can be maintained, it can be handled in the same manner as conventional packaging materials, and is extremely practical.

以下、本発明の実施形態の一つについて図を参照しながら説明する。   Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

本発明の遮光性包装材料は、図1に示すように、プラスチックのフィルム基材1に絵柄インキ層8と遮光バリア層2を全面または部分的に積層し、熱接着性樹脂層3を最内層として積層していることを基本構成としており、この包装材料の熱接着性樹脂層を面々で合わせた袋体や、被着体に対し熱融着樹脂層を熱融着した蓋材などに利用される包装材料である。   As shown in FIG. 1, the light-shielding packaging material of the present invention has a pattern ink layer 8 and a light-shielding barrier layer 2 laminated on a plastic film substrate 1 in whole or in part, and a heat-adhesive resin layer 3 as an innermost layer. As a basic structure, it is used as a bag with the heat-adhesive resin layer of this packaging material combined on a face-to-face, or as a cover material with a heat-bonded resin layer heat-bonded to the adherend. Packaging material.

印刷基材となるプラスチックのフィルム基材1としては、二軸延伸ナイロン(ONY)フィルム、二軸延伸ポリエチレンテレフタレート(OPET)フィルム、二軸延伸ポリプロピレン(OPP)フィルム、二軸延伸ポリ塩化ビニル(OPV)フィルム、二軸延伸ポリ乳酸(OPLA)フィルムなどが列記できる。フィルム基材は単層または多層の構造をしており、層構成は必要とされるバリア性、コスト、物性強度などによって設計される。特に、バリア性を付与する目的でアルミナやシリカなどの透明蒸着層やバリア性コート層を積層することも可能である。このフィルム基材1は一般的に9〜25μm程度の厚さのものが好ましく用いられる。フィルム基材1には、あらかじめ必要な絵柄、文字等を表裏面への印刷加工により設けておくことが一般的である。   As a plastic film substrate 1 as a printing substrate, biaxially stretched nylon (ONY) film, biaxially stretched polyethylene terephthalate (OPET) film, biaxially stretched polypropylene (OPP) film, biaxially stretched polyvinyl chloride (OPV) ) Film, biaxially stretched polylactic acid (OPLA) film, and the like. The film substrate has a single-layer or multi-layer structure, and the layer structure is designed according to required barrier properties, cost, physical strength, and the like. In particular, a transparent vapor deposition layer such as alumina or silica or a barrier coating layer can be laminated for the purpose of imparting barrier properties. In general, the film base 1 having a thickness of about 9 to 25 μm is preferably used. The film base 1 is generally provided with necessary pictures, characters, etc. in advance by printing on the front and back surfaces.

当該の印刷絵柄層8の表面上、もしくは無地部であればフィルム基材1上に遮光バリア層2を積層する。この遮光バリア層2については、遮光インキ層4とガスバリアコート層5の積層により形成される場合、遮光インキ層4とガスバリア接着層6の積層により形成される場合、遮光顔料をガスバリアコート層に分散させた遮光バリアインキ層7からなる場合の3パターンの構成を含んでいる。   The light shielding barrier layer 2 is laminated on the film substrate 1 on the surface of the printed pattern layer 8 or a plain part. When the light-shielding barrier layer 2 is formed by laminating the light-shielding ink layer 4 and the gas barrier coat layer 5, or when it is formed by laminating the light-shielding ink layer 4 and the gas barrier adhesive layer 6, the light-shielding pigment is dispersed in the gas barrier coat layer. The structure of 3 patterns in case it consists of the made light-shielding barrier ink layer 7 is included.

この遮光インキ層4もしくは遮光バリアインキ層7は、顔料を適正な濃度で分散させることにより、必要とされる光線波長領域での遮光性を付与している。この場合、紫外線領域に関してはUV吸収顔料の使用、紫外線領域のみでなく可視領域の遮光性を要する場合にはアルミペーストやアルミニウム粉を使用することが有効である。高い隠蔽性を有するアルミペースト及びまたはアルミニウム粉を分散させたインキとしては、例えば特許文献2に所載の高輝度インキ、特許文献3に所載の遮光性インキなどが例として挙げられる。   The light-shielding ink layer 4 or the light-shielding barrier ink layer 7 imparts light-shielding properties in the required light wavelength region by dispersing the pigment at an appropriate concentration. In this case, it is effective to use a UV absorbing pigment for the ultraviolet region, and to use an aluminum paste or aluminum powder when light shielding properties in the visible region as well as the ultraviolet region are required. Examples of the ink in which the aluminum paste and / or aluminum powder having high concealment properties are dispersed include, for example, high-luminance ink described in Patent Document 2 and light-shielding ink described in Patent Document 3.

ガスバリアコート層5としては、ポリビニルアルコール(以下、PVAとする)、ポリ塩化ビニリデン樹脂(以下、PVDCとする)などを主体としたコート剤、高い酸素バリア性を有するコート剤としては、特許文献4に所載のバリアコート剤などが例として挙げられる。また、特許文献5や特許文献6に所載のポリウレタン系バリアコート剤はウレタン系樹脂であるため、使用環境における湿度依存性も少なく、インキ層上への積層適性も良好で、特に遮光バリアインキ層7のベースインキとしての使用も可能である。   Examples of the gas barrier coating layer 5 include a coating agent mainly composed of polyvinyl alcohol (hereinafter referred to as PVA), polyvinylidene chloride resin (hereinafter referred to as PVDC), and a coating agent having high oxygen barrier properties. For example, the barrier coating agent described in 1) is mentioned. In addition, since the polyurethane-based barrier coating agent described in Patent Document 5 and Patent Document 6 is a urethane-based resin, it is less dependent on humidity in the use environment and has good stackability on the ink layer. It is also possible to use the layer 7 as a base ink.

ガスバリア接着層6としては、例えば特許文献7に所載のガスバリア性ラミネート用接着剤など、主剤樹脂の骨格構造を工夫して高密度化した2液硬化型ポリウレタン樹脂組成物を主成分とする接着剤が有効である。   As the gas barrier adhesive layer 6, for example, an adhesive mainly composed of a two-component curable polyurethane resin composition in which the skeleton structure of the main resin is devised and densified, such as an adhesive for gas barrier laminates described in Patent Document 7, for example. The agent is effective.

これらの遮光インキ層4、ガスバリアコート層5、ガスバリア接着層6、遮光バリアインキ層7はグラビア、フレキソ、シルクスクリーン、ホットガン等によって塗布するもの
である。当該インキ層は必ずしも包装材料全面に設ける必要はなく、製品側面からの内容物の視認性を与える為、製品正面に部分的に設けても何ら構わない。なお、本発明の遮光インキ層の具体的な材質、成分、コーティング方法等も決して上記実施形態に例示した如くは限定されない。遮光インキ層4は遮光性を有する顔料粒子を含有したインキ層であればよい。
The light shielding ink layer 4, the gas barrier coating layer 5, the gas barrier adhesive layer 6, and the light shielding barrier ink layer 7 are applied by gravure, flexo, silk screen, hot gun or the like. The ink layer is not necessarily provided on the entire surface of the packaging material, and may be partially provided on the front surface of the product in order to give the visibility of the contents from the product side. The specific materials, components, coating methods, etc. of the light-shielding ink layer of the present invention are not limited as illustrated in the above embodiment. The light shielding ink layer 4 may be an ink layer containing pigment particles having light shielding properties.

遮光バリア層2の表面上、もしくは無地部であればフィルム基材1上に熱接着性樹脂層3を積層する。積層の手法は特に限定されず、ドライラミネート接着剤層やノンソルベント接着剤層を介して熱接着樹脂フィルムを積層しても良いし、アンカーコート剤を介してエクストルーダー法により熱可塑性樹脂を積層することも、またコーティングにより積層することも可能である。好ましい熱接着樹脂層としては、ポリエチレン(PE)、エチレン−ビニルアルコール共重合体(EVA)、プロピレン(PP)などのポリオレフィン系樹脂、またはそれらの樹脂のポリマーアロイ層が例示できる。この熱接着樹脂層は単層または多層の構造をしており、層構成は必要とされる熱特性、コスト、物性強度などの適性により設計される。   On the surface of the light-shielding barrier layer 2 or a plain part, the heat-adhesive resin layer 3 is laminated on the film substrate 1. The lamination method is not particularly limited, and a thermal adhesive resin film may be laminated via a dry laminate adhesive layer or a non-solvent adhesive layer, or a thermoplastic resin may be laminated by an extruder method via an anchor coating agent. It can also be laminated by coating. Preferred examples of the thermal adhesive resin layer include polyolefin resins such as polyethylene (PE), ethylene-vinyl alcohol copolymer (EVA), and propylene (PP), or polymer alloy layers of those resins. This heat-bonding resin layer has a single-layer or multi-layer structure, and the layer structure is designed according to the required thermal characteristics, cost, physical properties, and the like.

以下に本発明の具体的実施例について説明するが本発明はこれらの実施例によって限定されるものではない。   Specific examples of the present invention will be described below, but the present invention is not limited to these examples.

<実施例1>
実施例1では、本発明の遮光バリア層が、遮光インキ層とガスバリアコート層との積層によりなるパターンを示す。遮光インキは、ポリウレタン−塩酢ビ系樹脂をビヒクルとしている東洋インキ製造(株)社製「ファインスター」のメジウムに、東洋アルミニウム(株)社製「TD701」(ノンリーフィングタイプ)をメジウムに対し25質量%、LPS硬化剤を3質量%添加し、撹拌して作成した。ガスバリアコート層には、三井武田ケミカル(株)社製「タケラックW6601」を使用した。
<Example 1>
In Example 1, the light shielding barrier layer of the present invention shows a pattern formed by laminating a light shielding ink layer and a gas barrier coat layer. The light-shielding ink is a medium of “Fine Star” manufactured by Toyo Ink Manufacturing Co., Ltd., which uses polyurethane-vinyl chloride resin as a vehicle, and “TD701” (non-leafing type) manufactured by Toyo Aluminum Co., Ltd. 25% by mass and 3% by mass of an LPS curing agent were added and prepared by stirring. As the gas barrier coat layer, “Takelac W6601” manufactured by Mitsui Takeda Chemical Co., Ltd. was used.

凸版印刷(株)社製のONYベース透明バリアフィルムのバリアコート面に、各種色インキ(東洋インキ製造(株)製「ファインスター」にLPS硬化剤3%添加)でデザイン印刷を行い、次いで遮光インキをスクリーン線数150線/インチ、セル深度30μmのグラビア版で乾燥塗布量が0.8g/m2になるように塗布・乾燥し、更にその上にガスバリアコート液をスクリーン線数175線/インチ、セル深度25μmのグラビア版で乾燥塗布量が0.5g/m2になるよう塗布・乾燥した。当該の印刷コート面にラミネート用接着剤(三井武田ケミカル(株)社製「タケラックA666」)を塗布量2.5g/m2になるよう塗布した後、直鎖状低密度ポリエチレン(LLDPE)フィルムを貼り合わせ包装材料を得た。 On the barrier coat surface of the ONY base transparent barrier film manufactured by Toppan Printing Co., Ltd., design printing was performed with various color inks (added 3% LPS curing agent to “Fine Star” manufactured by Toyo Ink Manufacturing Co., Ltd.), and then shielded from light Ink was applied and dried with a gravure plate with a screen line number of 150 lines / inch and a cell depth of 30 μm so that the dry coating amount was 0.8 g / m 2 , and a gas barrier coating solution was further applied thereon with a screen line number of 175 lines / inch. It was coated and dried with a gravure plate having an inch and a cell depth of 25 μm so that the dry coating amount was 0.5 g / m 2 . After applying an adhesive for laminating (“Takelac A666” manufactured by Mitsui Takeda Chemical Co., Ltd.) on the print coat surface to a coating amount of 2.5 g / m 2 , a linear low density polyethylene (LLDPE) film To obtain a packaging material.

<実施例2>
実施例2では、実施例1と同じく本発明の遮光バリア層が、遮光インキ層とガスバリアコート層との積層によりなるが、遮光インキ層が銀インキではなく、透明UVカットインキ(有機系、東洋インキ製造(株)社製「Z1116UVカットインキ」)と透明黄(大日本インキ化学工業(株)社製「ユニビアNTR403 透明黄コンク」)の積層によりなるパターンを示す。
<Example 2>
In Example 2, the light-shielding barrier layer of the present invention is formed by laminating a light-shielding ink layer and a gas barrier coat layer as in Example 1, but the light-shielding ink layer is not silver ink but transparent UV cut ink (organic, Toyo A pattern formed by stacking “Z1116 UV cut ink” manufactured by Ink Manufacturing Co., Ltd.) and transparent yellow (“Univia NTR403 transparent yellow concrete” manufactured by Dainippon Ink & Chemicals, Inc.) is shown.

実施例1と同様、ONYベース透明バリアフィルムのバリアコート面に、各種色インキでデザイン印刷を行い、次いでUVカットインキと透明黄をそれぞれスクリーン線数175線/インチ、セル深度25μmのグラビア版で乾燥塗布量が0.5g/m2になるように塗布・乾燥した。当該の印刷コート面にラミネート用接着剤「タケラックA666」を塗布量2.5g/m2になるよう塗布した後、直鎖状低密度ポリエチレン(LLDPE)フィルムを貼り合わせ包装材料を得た。 As in Example 1, design printing was performed with various color inks on the barrier coating surface of the ONY-based transparent barrier film, and then UV cut ink and transparent yellow were each printed on a gravure plate with a screen line number of 175 lines / inch and a cell depth of 25 μm. It was applied and dried so that the dry coating amount was 0.5 g / m 2 . After applying the laminating adhesive “Takelac A666” on the print coat surface to a coating amount of 2.5 g / m 2 , a linear low density polyethylene (LLDPE) film was bonded to obtain a packaging material.

<実施例3>
実施例3では、本発明の遮光バリア層が、遮光インキ層とガスバリア接着層との積層によりなるパターンを示す。遮光インキは実施例1と同様の調整を行った。ガスバリア接着剤には三菱瓦斯化学(株)社製「MAXIVE」を使用した。
実施例1と同様、ONYベース透明バリアフィルムのバリアコート面に、各種色インキでデザイン印刷を行い、次いで遮光インキをスクリーン線数150線/インチ、セル深度30μmのグラビア版で乾燥塗布量が0.8g/m2になるように塗布・乾燥した。当該の印刷コート面にガスバリア接着剤を塗布量2.5g/m2になるよう塗布した後、LLDPEフィルムを貼り合わせ包装材料を得た。
<Example 3>
In Example 3, the light shielding barrier layer of the present invention shows a pattern formed by laminating a light shielding ink layer and a gas barrier adhesive layer. The light-shielding ink was adjusted in the same manner as in Example 1. “MAXIVE” manufactured by Mitsubishi Gas Chemical Company, Inc. was used as the gas barrier adhesive.
As in Example 1, design printing was performed with various color inks on the barrier coating surface of the ONY base transparent barrier film, and then the light-shielding ink was a gravure plate with a screen line number of 150 lines / inch and a cell depth of 30 μm, and the dry coating amount was 0. It was applied and dried so as to be 0.8 g / m 2 . A gas barrier adhesive was applied to the print coat surface so as to have an application amount of 2.5 g / m 2, and then an LLDPE film was bonded to obtain a packaging material.

<実施例4>
実施例4では、本発明の遮光バリア層が、遮光バリアインキ層によりなるパターンを示す。遮光バリアインキは、水系ポリウレタン系樹脂を主成分としているガスバリアコート剤である三井武田ケミカル(株)社製「タケラックW6601」をインキベースとして使用、このインキベースに東洋アルミニウム(株)社製「TD701」を25質量%添加し、撹拌して作成した。
実施例1と同様、ONYベース透明バリアフィルムのバリアコート面に、各種色インキでデザイン印刷を行い、次いで遮光バリアインキをスクリーン線数150線/インチ、セル深度30μmのグラビア版で乾燥塗布量が0.8g/m2になるように塗布・乾燥した。当該の印刷コート面にラミネート用接着剤「タケラックA666」を塗布量2.5g/m2になるよう塗布した後、LLDPEフィルムを貼り合わせ包装材料を得た。
以下に本発明の比較例について説明する。
<Example 4>
In Example 4, the light shielding barrier layer of the present invention shows a pattern made of a light shielding barrier ink layer. For the light-shielding barrier ink, “Takelac W6601” manufactured by Mitsui Takeda Chemical Co., Ltd., which is a gas barrier coating agent mainly composed of a water-based polyurethane resin, is used as an ink base. “TD701” manufactured by Toyo Aluminum Co., Ltd. 25% by mass was added and stirred.
As in Example 1, design printing was performed with various color inks on the barrier coating surface of the ONY-based transparent barrier film, and then the light-shielding barrier ink was a gravure plate with a screen line number of 150 lines / inch and a cell depth of 30 μm, and the dry coating amount was It was applied and dried to 0.8 g / m 2 . A laminating adhesive “Takelac A666” was applied to the print coat surface so as to have an application amount of 2.5 g / m 2, and then an LLDPE film was bonded thereto to obtain a packaging material.
Hereinafter, comparative examples of the present invention will be described.

<比較例1>
比較例1では、バリア層を配さず遮光銀インキ層のみのパターンを示す。遮光銀インキは実施例1と同様の調整を行った。
実施例1と同様、ONYベース透明バリアフィルムのバリアコート面に、各種色インキでデザイン印刷を行い、次いで遮光インキをスクリーン線数150線/インチ、セル深度30μmのグラビア版で乾燥塗布量が0.8g/m2になるように塗布・乾燥した。当該の印刷コート面にラミネート用接着剤「タケラックA666」を塗布量2.5g/m2になるよう塗布した後、LLDPEフィルムを貼り合わせ包装材料を得た。
<Comparative Example 1>
In Comparative Example 1, a pattern having only a light-shielding silver ink layer without a barrier layer is shown. The light-shielding silver ink was adjusted in the same manner as in Example 1.
As in Example 1, design printing was performed with various color inks on the barrier coating surface of the ONY base transparent barrier film, and then the light-shielding ink was a gravure plate with a screen line number of 150 lines / inch and a cell depth of 30 μm, and the dry coating amount was 0. It was applied and dried so as to be 0.8 g / m 2 . A laminating adhesive “Takelac A666” was applied to the print coat surface so as to have an application amount of 2.5 g / m 2, and then an LLDPE film was bonded thereto to obtain a packaging material.

<比較例2>
比較例2では、インキ臭気を低減するため、遮光インキ層を白色により付与するパターンを示す。遮光インキは東洋インキ製造(株)社製「ファインスター」の651白を使用。
実施例1と同様、ONYベース透明バリアフィルムのバリアコート面に、各種色インキでデザイン印刷を行い、次いで遮光白インキをスクリーン線数150線/インチ、セル深度30μmのグラビア版で乾燥塗布量が0.8g/m2になるように塗布・乾燥した。当該の印刷コート面にラミネート用接着剤「タケラックA666」を塗布量2.5g/m2になるよう塗布した後、LLDPEフィルムを貼り合わせ包装材料を得た。
<Comparative Example 2>
Comparative Example 2 shows a pattern in which a light-shielding ink layer is imparted in white to reduce ink odor. As the light-shielding ink, 651 white of “Fine Star” manufactured by Toyo Ink Manufacturing Co., Ltd. is used.
As in Example 1, design printing was performed with various color inks on the barrier coating surface of the ONY-based transparent barrier film, and then the light-shielding white ink was applied in a gravure plate with a screen line number of 150 lines / inch and a cell depth of 30 μm, and the dry coating amount was It was applied and dried to 0.8 g / m 2 . A laminating adhesive “Takelac A666” was applied to the print coat surface so as to have an application amount of 2.5 g / m 2, and then an LLDPE film was bonded thereto to obtain a packaging material.

<比較例3>
比較例3では、遮光層をインキではなくアルミ蒸着層を積層することにより付与するパターンを示す。
実施例1と同様、ONYベース透明バリアフィルムのバリアコート面に、各種色インキでデザイン印刷を行い、次いでアルミ蒸着用ACコート剤(東洋インキ製造(株)社製「MET17−7」に「CVLハードナー」を4%添加)をスクリーン線数250線/インチ
、セル深度25μmのグラビア版で乾燥塗布量が0.2g/m2になるように塗布・乾燥した。当該のACコート面にアルミ蒸着層を厚み800Åで積層した後、ラミネート用接着剤「タケラックA666」を塗布量2.5g/m2になるよう塗布した後、LLDPEフィルムを貼り合わせ包装材料を得た。
<Comparative Example 3>
In the comparative example 3, the pattern provided by laminating | stacking an aluminum vapor deposition layer instead of ink as a light shielding layer is shown.
As in Example 1, design printing was performed with various color inks on the barrier coating surface of the ONY-based transparent barrier film, and then AC coating agent for aluminum deposition (“MET17-7” manufactured by Toyo Ink Manufacturing Co., Ltd.) 4% hardener "was added) and dried with a gravure plate having a screen line number of 250 lines / inch and a cell depth of 25 μm so that the dry coating amount was 0.2 g / m 2 . After laminating an aluminum vapor deposition layer with a thickness of 800 mm on the AC coated surface, a laminating adhesive “Takelac A666” was applied to a coating amount of 2.5 g / m 2, and then an LLDPE film was bonded to obtain a packaging material. It was.

<比較結果>
前記の実施例1〜4ならびに比較例1〜3に記載の包装材料について、以下の評価を実施した。
<Comparison result>
The following evaluation was implemented about the packaging material of the said Examples 1-4 and Comparative Examples 1-3.

<遮光性>
紫外・可視吸光光度計(日立製作所製、可視紫外分光光度計341型)を使用し、UV領域(200〜380nm)に加え、油成分やビタミン類の分解に関わる領域として380〜500nmまでの可視領域の光線透過率を測定した。200〜500nm間の光線透過率が5%以下の場合を○とし、5%以上の場合を×と表記した。
<Light shielding>
Using an ultraviolet / visible absorptiometer (manufactured by Hitachi, Ltd., visible ultraviolet spectrophotometer type 341), in addition to the UV region (200 to 380 nm), visible to 380 to 500 nm as a region related to the decomposition of oil components and vitamins The light transmittance of the area was measured. The case where the light transmittance between 200 and 500 nm was 5% or less was marked as ◯, and the case where it was 5% or more was marked as x.

<低臭性>
包装材料の表面積が0.25m2となるように採寸し、ガラス製のマヨネーズ瓶に詰め、40℃恒温槽で3日間保持した後、臭気の官能評価に用いた。官能評価はパネラー数は15人で行い、○:異臭少なく良好(有意水準1%)、×:異臭多く不良(有意水準1%)とした。
<Low odor>
The packaging material was measured to have a surface area of 0.25 m 2 , packed in a glass mayonnaise bottle, held in a constant temperature bath at 40 ° C. for 3 days, and used for sensory evaluation of odor. The sensory evaluation was performed by 15 panelists, where ◯: good odor and good (significant level 1%), x: bad odor and bad (significant level 1%).

<金属探知機使用適性>
金属探知機(日新電子工業(株)社製金属検出器「ND−810」)にて0.25m2サイズの包装材料を検出感度65.4(デジタル設定、製品影響減少はOFF)、検出信号電圧は3.0V以上の条件で、検出されない場合は○、検出される場合は×と表記した。結果を表1に示す。
<Applicability of metal detector>
0.25m 2 size packaging material is detected with metal detector (metal detector “ND-810” manufactured by Nissin Electronics Co., Ltd.) Detection sensitivity 65.4 (digital setting, product effect reduction is OFF), detection When the signal voltage was not detected under the condition of 3.0 V or more, it was indicated as “◯”, and when it was detected as “X”. The results are shown in Table 1.

本発明の実施例1から実施例4の包装材料ではいずれも低臭性、遮光性、金属探知機適性ともクリアし、目的とする特性を有する包装材料が得られた。
これに対して、遮光バリア層に代えて遮光銀インキ層のみの構成とした比較例1の包装材料は低臭性が×であった。
インキ臭気を低減するため遮光インキ層を白色により付与するパターンの比較例2の包装材料は、遮光性が×であった。
遮光層をインキではなくアルミ蒸着層を積層することにより付与するパターンの比較例3の包装材料は、金属探知機適性が×であった。
The packaging materials of Examples 1 to 4 of the present invention all cleared low odor, light shielding properties, and suitability for metal detectors, and a packaging material having the desired characteristics was obtained.
On the other hand, the packaging material of Comparative Example 1 having only the light-shielding silver ink layer instead of the light-shielding barrier layer had a low odor.
The packaging material of Comparative Example 2 having a pattern in which the light-shielding ink layer was imparted with white color in order to reduce the ink odor, had a light shielding property of x.
The packaging material of Comparative Example 3 having a pattern provided by laminating an aluminum vapor deposition layer instead of ink as the light shielding layer had a metal detector suitability of x.

本発明の包装材料の一例の断面模式図Cross-sectional schematic diagram of an example of the packaging material of the present invention 本発明の包装材料の一例の断面模式図Cross-sectional schematic diagram of an example of the packaging material of the present invention 本発明の包装材料の一例の断面模式図Cross-sectional schematic diagram of an example of the packaging material of the present invention 本発明の包装材料の一例の断面模式図Cross-sectional schematic diagram of an example of the packaging material of the present invention

符号の説明Explanation of symbols

1…フィルム基材
2…遮光バリア層
3…熱接着性樹脂層
4…遮光インキ層
5…ガスバリアコート層
6…ガスバリア接着層
7…遮光バリアインキ層
8…絵柄インキ層
9…接着剤層
DESCRIPTION OF SYMBOLS 1 ... Film base material 2 ... Light-shielding barrier layer 3 ... Thermal adhesive resin layer 4 ... Light-shielding ink layer 5 ... Gas barrier coating layer 6 ... Gas barrier adhesive layer 7 ... Light-shielding barrier ink layer 8 ... Pattern ink layer 9 ... Adhesive layer

Claims (8)

フィルム基材層を最外層とし、熱接着性樹脂層を最内層として積層され、その層間に全面または部分的に遮光バリア層が設けられていることを特徴とする包装材料   A packaging material comprising a film base layer as an outermost layer and a heat-adhesive resin layer as an innermost layer, and a light-shielding barrier layer provided entirely or partially between the layers. 遮光バリア層が遮光インキ層とガスバリアコート層の積層により設けられていることを特徴とする請求項1に記載の包装材料   The packaging material according to claim 1, wherein the light shielding barrier layer is provided by laminating a light shielding ink layer and a gas barrier coating layer. 遮光バリア層が遮光インキ層とガスバリア接着剤層の積層により設けられていることを特徴とする請求項1に記載の包装材料   The packaging material according to claim 1, wherein the light-shielding barrier layer is provided by laminating a light-shielding ink layer and a gas barrier adhesive layer. 遮光バリア層が遮光顔料をガスバリアコート層に分散させた遮光バリアインキ層からなることを特徴とする請求項1に記載の包装材料   2. The packaging material according to claim 1, wherein the light shielding barrier layer comprises a light shielding barrier ink layer in which a light shielding pigment is dispersed in a gas barrier coating layer. 遮光インキ層または遮光バリアインキ層に分散されている顔料が、有機脂肪酸、セルロース誘導体、メチルシリルイソシアネート、石油系有機溶媒との練肉により表面処理されたアルミニウム細粉または薄膜砕片であり、遮光領域に含有されるアルミニウム量が0.05〜1.5g/m2であることを特徴とする請求項2から4のいずれか1項に記載の包装材料 The pigment dispersed in the light-shielding ink layer or the light-shielding barrier ink layer is an aluminum fine powder or thin film crushed surface-treated by kneading with an organic fatty acid, a cellulose derivative, methylsilyl isocyanate, or a petroleum-based organic solvent. the packaging material according to claims 2 to any one of 4 aluminum content contained is characterized by a 0.05 to 1.5 g / m 2 遮光インキ層がポリウレタン樹脂をビヒクルの主成分とし、ポリイソシアナート化合物を含有することを特徴とする請求項2から5のいずれか1項に記載の包装材料   6. The packaging material according to claim 2, wherein the light-shielding ink layer comprises a polyurethane resin as a main component of the vehicle and a polyisocyanate compound. ガスバリア層がポリウレタン樹脂組成物からなり、ウレタン基およびウレア基濃度の合計が15質量%以上であり、且つ酸基を有するポリウレタン樹脂と、ポリアミン化合物とを含む水性ポリウレタン樹脂からなることを特徴とする請求項1から6のいずれか1項に記載の包装材料   The gas barrier layer is made of a polyurethane resin composition, and the total concentration of urethane groups and urea groups is 15% by mass or more, and is made of an aqueous polyurethane resin containing a polyurethane resin having an acid group and a polyamine compound. The packaging material according to any one of claims 1 to 6. フィルム基材層と遮光バリア層の間に絵柄インキ層を設け、遮光バリア層と熱接着性樹脂層の間に接着層を設けたことを特徴とする請求項1から7のいずれか1項に記載の包装材料およびその袋体   The pattern ink layer is provided between the film base material layer and the light shielding barrier layer, and the adhesive layer is provided between the light shielding barrier layer and the heat-adhesive resin layer. Wrapping material and bag body thereof
JP2008062352A 2008-03-12 2008-03-12 Packaging material and bag made thereof Pending JP2009214919A (en)

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JP2018108860A (en) * 2017-01-06 2018-07-12 凸版印刷株式会社 Laminated sheet for pouch and high luminance pouch using the same
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JP6894559B1 (en) * 2020-09-28 2021-06-30 東京インキ株式会社 High-brightness gravure ink composition, high-brightness printed matter, laminate, high-brightness printed matter manufacturing method, laminate manufacturing method and packaging bag, lid material, label
JP6894560B1 (en) * 2020-09-28 2021-06-30 東京インキ株式会社 Light-shielding gravure ink composition, light-shielding printed matter, laminate, method of manufacturing light-shielding printed matter, manufacturing method of laminate, packaging bag, lid material, label

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