JPH09295664A - Lid material for food containers - Google Patents
Lid material for food containersInfo
- Publication number
- JPH09295664A JPH09295664A JP8109633A JP10963396A JPH09295664A JP H09295664 A JPH09295664 A JP H09295664A JP 8109633 A JP8109633 A JP 8109633A JP 10963396 A JP10963396 A JP 10963396A JP H09295664 A JPH09295664 A JP H09295664A
- Authority
- JP
- Japan
- Prior art keywords
- lid
- container
- lid material
- paper
- titanium oxide
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 20
- 235000013305 food Nutrition 0.000 title claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 14
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims description 4
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 10
- 239000011888 foil Substances 0.000 abstract description 10
- 229910052751 metal Inorganic materials 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 6
- 235000012149 noodles Nutrition 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 229920006262 high density polyethylene film Polymers 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 14
- 230000004927 fusion Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000049 pigment Substances 0.000 description 6
- 229920001684 low density polyethylene Polymers 0.000 description 4
- 239000004702 low-density polyethylene Substances 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 2
- 239000012964 benzotriazole Substances 0.000 description 2
- 239000010849 combustible waste Substances 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 238000007765 extrusion coating Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000011342 resin composition Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- 150000008366 benzophenones Chemical class 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- NKZSPGSOXYXWQA-UHFFFAOYSA-N dioxido(oxo)titanium;lead(2+) Chemical compound [Pb+2].[O-][Ti]([O-])=O NKZSPGSOXYXWQA-UHFFFAOYSA-N 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- DXGLGDHPHMLXJC-UHFFFAOYSA-N oxybenzone Chemical compound OC1=CC(OC)=CC=C1C(=O)C1=CC=CC=C1 DXGLGDHPHMLXJC-UHFFFAOYSA-N 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Closures For Containers (AREA)
Abstract
(57)【要約】
【課題】 例えば、即席カップめん容器等の食品容器の
蓋に用いられる蓋材において、アルミニウム箔を使用し
ないようにし、金属製異物の容器への混入を金属探知装
置で検知できるようにするとともに、電子レンジで内容
物を加熱できるようにする。
【解決手段】 坪量８０〜１２０ｇ／ｍ2 の紙に酸化チ
タン含有印刷インキで全面印刷を施した片アート紙など
の紫外線遮断性加工紙１１と、酸化チタンと紫外線吸収
剤を含有する一軸延伸高密度ポリエチレンフィルムなど
の紫外線遮断性延伸フィルム１２とを貼り合わせ、これ
に熱融着樹脂層１５を積層して蓋材とする。
(57) 【Abstract】 PROBLEM TO BE SOLVED: For example, in a lid material used for a lid of a food container such as an instant cup noodle container, an aluminum foil is not used, and a metal detection device can detect the inclusion of a metal foreign substance into the container. And allow the contents to be heated in the microwave. SOLUTION: The UV-blocking processed paper 11 such as a piece of art paper, which is obtained by printing the entire surface of a paper having a basis weight of 80 to 120 g / m 2 with a printing ink containing titanium oxide, and uniaxial stretching containing titanium oxide and an ultraviolet absorber. A UV-shielding stretched film 12 such as a high-density polyethylene film is attached, and the heat-sealing resin layer 15 is laminated thereon to form a lid material.
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、例えば即席カッ
プめん容器等の食品容器の蓋に使用される蓋材に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid material used for a lid of a food container such as an instant cup noodle container.
【０００２】[0002]
【従来の技術】即席カップめん容器の蓋に使用される蓋
材としては、図２に示す構成のものが用いられている。
図中符号１は坪量７０〜８０ｇ／ｍ2 の片面が平滑処理
された片アート紙である。この片アート紙１の一方の表
面には、厚さ２０μｍ程度の低密度ポリエチレンからな
る接着層２を介して厚さ６〜８μｍ程度のアルミニウム
箔３が積層されている。2. Description of the Related Art As a lid material used for a lid of an instant cup noodle container, the one having the structure shown in FIG. 2 is used.
Reference numeral 1 in the figure is a single-sided art paper having a basis weight of 70 to 80 g / m 2 and one side thereof subjected to smoothing treatment. An aluminum foil 3 having a thickness of about 6 to 8 μm is laminated on one surface of the piece art paper 1 with an adhesive layer 2 made of low density polyethylene having a thickness of about 20 μm interposed therebetween.
【０００３】このアルミニウム箔３の表面には、厚さ２
０μｍ程度の低密度ポリエチレンからなる接着層４が設
けられ、この接着層４の上にエチレン−酢酸ビニル共重
合体などの低溶融点樹脂からなる厚さ２０μｍ程度の熱
融着樹脂層５が形成されている。また、片アート紙１の
他方の表面には、商品名、メーカ名、使用方法、注意事
項などの種々の表示が印刷されている。The surface of this aluminum foil 3 has a thickness of 2
An adhesive layer 4 made of low-density polyethylene of about 0 μm is provided, and a heat-fusion resin layer 5 made of a low melting point resin such as ethylene-vinyl acetate copolymer and having a thickness of about 20 μm is formed on the adhesive layer 4. Has been done. Further, on the other surface of the piece art paper 1, various indications such as a product name, a maker name, a usage method, and notes are printed.
【０００４】このような蓋材は、通常容器の口部に対応
した平面形状に打ち抜かれて蓋とされ、これを数百枚積
み重ねて自動封入機に装填し、図３に示すように内容物
Ｆが収められた発泡ポリスチレンなどからなるカップ状
の容器６の口部に被せ、熱板を上方から約０．５〜１秒
間押し付けて、蓋７の熱融着樹脂層５を溶融させて容器
６の口部に蓋７を溶着して封じることにより使用に供さ
れている。Such a lid material is usually punched into a flat shape corresponding to the mouth of a container to form a lid, and hundreds of the lid materials are stacked and loaded into an automatic enclosing machine. As shown in FIG. Cover the mouth of a cup-shaped container 6 made of expanded polystyrene or the like containing F, and press the hot plate from above for about 0.5 to 1 second to melt the heat-sealing resin layer 5 of the lid 7 and then the container The lid 7 is welded and sealed at the mouth of 6 for use.
【０００５】このような蓋材には、その使用目的、使用
方法により、次のような特性が要求される。 自動封入機により蓋を容器口部に１枚ずつ被せる際
に適度の腰があり、折れ曲がったり、カールしないこ
と。 蓋材が外部からの紫外線を遮断し、容器内の内容物
に紫外線によって変色等の劣化が生じないこと。The following characteristics are required for such a lid material depending on the purpose and method of use. When you put the lid on the mouth of the container one by one with the automatic enclosing machine, be sure that you have a proper waist and do not bend or curl. The lid material blocks ultraviolet rays from the outside so that the contents inside the container will not be discolored or deteriorated by ultraviolet rays.
【０００６】これらの要求に対して上述の蓋材では片ア
ート紙１とアルミニウム箔３との積層により適度の腰の
強さが得られ、アルミニウム箔３の使用により外部から
の紫外線を完全に遮断することができ一応要求性能を満
たしている。しかしながら、この蓋材ではアルミニウム
箔３が使われていることから、容器６内に万一誤って混
入した金属製異物を検知するための金属探知装置が使用
できないこと、また電子レンジによる加熱が不可能であ
ること、さらにはアルミニウム箔３の廃棄物処理に支障
があることなど改善すべき点が残されている。[0006] In order to meet these requirements, the lid member described above can obtain a proper elasticity by laminating the single-sided art paper 1 and the aluminum foil 3, and the use of the aluminum foil 3 completely blocks ultraviolet rays from the outside. It is possible to meet the required performance. However, since the aluminum foil 3 is used in this lid material, it is impossible to use a metal detection device for detecting a metallic foreign substance that is accidentally mixed in the container 6, and heating by a microwave oven is not possible. It is possible, and further, there is a point to be improved such as an obstacle to waste treatment of the aluminum foil 3.
【０００７】[0007]
【発明が解決しようとする課題】よって、この発明にお
ける課題は、アルミニウム箔を使用することによって生
じる上述の問題点を解消し、かつ上述の要求性能を満た
す食品容器用蓋材を得ることにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above problems caused by using an aluminum foil and to obtain a lid material for food containers which satisfies the above required performance. .
【０００８】[0008]
【課題を解決するための手段】かかる課題は、紫外線遮
断性加工紙と紫外線遮断性延伸フィルムとを貼り合わ
せ、紫外線遮断性延伸フィルムの表面に熱融着樹脂層を
形成した蓋材によって解決できる。また、紫外線遮断性
加工紙としては、坪量が８０〜１５０ｇ／ｍ2 の紙に酸
化チタン含有印刷インキを用いて全面印刷したものがよ
り好適であり、紫外線遮断性延伸フィルムとしては、酸
化チタンおよび紫外線吸収剤を含有した高密度ポリエチ
レンの一軸延伸フィルムが好適である。This problem can be solved by a lid material in which a UV-shielding processed paper and a UV-shielding stretched film are laminated and a heat-sealing resin layer is formed on the surface of the UV-shielding stretched film. . Further, as the UV-shielding processed paper, it is more preferable to use a paper having a basis weight of 80 to 150 g / m 2 which is entirely printed with a titanium oxide-containing printing ink, and as the UV-shielding stretched film, titanium oxide can be used. A uniaxially stretched film of high-density polyethylene containing and an ultraviolet absorber is suitable.
【０００９】[0009]
【発明の実施の形態】図１は、この発明の食品容器用蓋
材の一例を示すもので、図中符号１１は紫外線遮断性加
工紙（以下、ＵＶカット紙と略記する。）である。この
ＵＶカット紙１１は、紫外線を遮断する特性を付与する
ための加工を施したもので、例えば紙の表面に酸化チタ
ンなどの紫外線を反射する特性を有する顔料（フィラ
ー）を添加した印刷インキを用いて全面印刷（ベタ印
刷）したもの、酸化チタンなどの顔料を添加した樹脂液
を塗布、乾燥したものや抄紙時のサイジング工程の前後
において酸化チタンなどの顔料を添加して抄紙したもの
などが挙げられる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of a lid member for a food container according to the present invention. In the figure, reference numeral 11 is a UV blocking paper (hereinafter abbreviated as UV cut paper). The UV cut paper 11 is processed to impart a property of blocking ultraviolet rays. For example, a printing ink in which a pigment (filler) having a property of reflecting ultraviolet rays such as titanium oxide is added to the surface of the paper is used. It can be printed all over (solid printing), coated with a resin solution containing a pigment such as titanium oxide, dried, or made with a pigment such as titanium oxide before and after the sizing step during papermaking. Can be mentioned.
【００１０】また、このＵＶカット紙１１は、その単位
面積当たりの重量が８０〜１４０ｇ／ｍ2 、好ましくは
１００〜１２０ｇ／ｍ2 の範囲にあることが望ましく、
８０ｇ／ｍ2 未満となると腰の強さが不足し、１４０ｇ
／ｍ2 を越えると腰の強さが過剰となる。さらに、必要
に応じてその一面をカレンダー加工して平滑化した片ア
ート紙を使うことも印刷適性の点から望ましい。このＵ
Ｖカット紙１１の一方の表面には商品名、メーカー名、
使用方法、注意事項などを表示するための印刷１１ａが
施されている。[0010] The UV cut sheet 11, weight 80~140g / m 2 per unit area, it is desirable that preferably in the range of 100 to 120 g / m 2,
If it is less than 80 g / m 2 , the waist strength is insufficient and 140 g
If it exceeds / m 2 , the waist strength becomes excessive. Further, it is also desirable from the viewpoint of printability to use a piece of art paper whose one surface is calendered and smoothed if necessary. This U
On one surface of the V-cut paper 11, the product name, manufacturer name,
A print 11a is provided to display the usage method, precautions, and the like.
【００１１】ＵＶカット紙１１の他方の表面には低密度
ポリエチレンなどからなる厚さ１０〜２０μｍの融着層
１２を介して紫外線遮断性延伸フィルム（以下、ＵＶカ
ットフィルムと略記する）１３が貼り合わせられてい
る。このＵＶカットフィルム１３は厚さが１０〜３０μ
ｍの高密度ポリエチレン、ポリプロピレン、ポリエチレ
ンテレフタレート、ナイロン、ポリスチレンなどの熱可
塑性樹脂からなる一軸延伸フィルムまたは二軸延伸フィ
ルムであり、紫外線遮断性を付与するために酸化チタン
などの顔料と紫外線吸収剤が添加されたものである。こ
のような延伸フィルム１３を上記ＵＶカット紙１１とと
もに使用することで蓋材としたときの適度の腰の強さが
得られる。A UV-shielding stretched film (hereinafter abbreviated as UV-cut film) 13 is attached to the other surface of the UV-cut paper 11 via a fusing layer 12 made of low-density polyethylene or the like and having a thickness of 10 to 20 μm. Aligned. This UV cut film 13 has a thickness of 10 to 30 μ.
m is a uniaxially stretched film or a biaxially stretched film made of a thermoplastic resin such as high density polyethylene, polypropylene, polyethylene terephthalate, nylon, polystyrene, etc., in which a pigment such as titanium oxide and an ultraviolet absorber are added in order to impart an ultraviolet shielding property. It has been added. By using such a stretched film 13 together with the UV cut paper 11, an appropriate degree of elasticity when used as a lid material can be obtained.
【００１２】このＵＶカットフィルム１３の延伸倍率は
１．５〜１０倍であり、酸化チタンの含有量は０．５〜
２０重量％であり、紫外線吸収剤の含有量は０．１〜２
重量％であり、紫外線吸収剤としては、例えば２−ヒド
ロキシ−４−メトキシベンゾフェノン、２−ヒドロキシ
−４−ｎ−オクトキシベンゾフェノンなどのベンゾフェ
ノン系、２−（２′−ヒドロキシ−５′−メチルフェニ
ル）ベンゾトリアゾール、２−（２′−ヒドロキシ−
３′−ｔ−ブチル−５′−メチルフェニル）−５−クロ
ロベンゾトリアゾールなどのベンゾトリアゾール系など
が使用される。The UV cut film 13 has a draw ratio of 1.5 to 10 and a titanium oxide content of 0.5 to 10.
It is 20% by weight, and the content of the ultraviolet absorber is 0.1 to 2
% By weight, and examples of the ultraviolet absorber include benzophenone compounds such as 2-hydroxy-4-methoxybenzophenone and 2-hydroxy-4-n-octoxybenzophenone, 2- (2'-hydroxy-5'-methylphenyl). ) Benzotriazole, 2- (2'-hydroxy-)
A benzotriazole type such as 3'-t-butyl-5'-methylphenyl) -5-chlorobenzotriazole is used.
【００１３】ＵＶカットフィルム１３の表面には低密度
ポリエチレンなどからなる厚さ１０〜２０μｍの融着層
１４を介して、厚さ５〜２０μｍの熱融着樹脂層１５が
設けられている。この熱融着樹脂層１５は、溶融温度が
１２０〜１８０℃のエチレン−酢酸ビニル共重合体など
を主体とする樹脂組成物からなり、容器口部に蓋を熱融
着するためのものである。このような構成の蓋材の製造
は、例えばＵＶカット紙１１に押出ラミネート法により
融着層１２を押出しつつＵＶフィルム１３を貼り合わ
せ、ついでＵＶフィルム１３上に同様に融着層１４およ
び熱融着樹脂層１５を同時押出被覆するか、順次押出被
覆する方法などによって行うことができる。また、熱融
着樹脂層１５をなす樹脂組成物がＵＶカットフィルム１
３に対して良好な接着性を示すものであれば、融着層１
４を省略し、ＵＶカットフィルム１３表面上に直接熱融
着樹脂層１５を設けてもよい。On the surface of the UV cut film 13, a heat fusion resin layer 15 having a thickness of 5 to 20 μm is provided via a fusion bonding layer 14 having a thickness of 10 to 20 μm made of low density polyethylene or the like. The heat-sealing resin layer 15 is made of a resin composition mainly composed of an ethylene-vinyl acetate copolymer having a melting temperature of 120 to 180 ° C., and is for heat-sealing the lid to the mouth of the container. . The lid material having such a structure is manufactured by, for example, adhering the UV film 13 to the UV cut paper 11 while extruding the fusion bonding layer 12 by an extrusion laminating method, and then similarly bonding the UV fusion film 14 and the heat fusion layer 14 onto the UV film 13. The resin coating layer 15 can be formed by a method such as simultaneous extrusion coating or sequential extrusion coating. Further, the resin composition forming the heat-sealing resin layer 15 contains the UV cut film 1
3 is a fusion-bonding layer if it exhibits good adhesion to
4 may be omitted, and the heat fusion resin layer 15 may be provided directly on the surface of the UV cut film 13.
【００１４】この蓋材は、従来のものと同様に容器の口
部に対応した形状に打ち抜かれて蓋とされ、これを数百
枚積み重ねて自動封入機に装填し、内容物が収められた
容器の口部に１枚ずつ被せてゆき、熱板で上方から０．
５〜１秒間加圧、加熱して熱融着樹脂層１５を溶融して
蓋を容器の口部に溶着することにより使用に供される。The lid material is punched into a shape corresponding to the mouth of the container to form a lid like the conventional one, and hundreds of the lids are stacked and loaded into an automatic enclosing machine to store the contents. Cover the mouth of the container one by one, and use a hot plate to heat the container from above.
It is used by pressing and heating for 5 to 1 second to melt the heat-sealing resin layer 15 and welding the lid to the mouth of the container.
【００１５】このような蓋材にあっては、ＵＶカット紙
１１とＵＶカットフィルム１３とを貼り合わせているの
で、適度の腰の強さが得られ、打ち抜き加工後に蓋がカ
ールすることがなく、自動封入機でのトラブルの原因と
なることがない。また、外部からの紫外線がＵＶカット
紙１１とＵＶカットフィルム１３とによって完全に遮断
され、容器内に入射することがないので、内容物が紫外
線によって劣化することがない。In such a lid member, since the UV cut paper 11 and the UV cut film 13 are adhered to each other, a moderate elasticity can be obtained, and the lid does not curl after the punching process. , It will not cause any trouble in the automatic enclosing machine. Further, since ultraviolet rays from the outside are completely blocked by the UV cut paper 11 and the UV cut film 13 and do not enter the container, the contents are not deteriorated by the ultraviolet rays.
【００１６】さらに、アルミニウム箔が使われていない
ので、内容物を封入した後の容器に対して金属探知装置
の使用が可能となり、容器内への金属異物の混入を検知
できる。また、蓋をしたまま電子レンジによって内容物
を加熱することもできる。また、容器使用後の廃棄物処
理に際しても可燃性ゴミとして簡単に処分できる。Furthermore, since the aluminum foil is not used, the metal detection device can be used for the container after the contents are sealed, and it is possible to detect the mixing of the metal foreign matter into the container. It is also possible to heat the contents with a microwave oven with the lid on. In addition, it is possible to easily dispose of as combustible waste even when the waste is disposed of after the container is used.
【００１７】本発明の蓋材は、即席カップめん容器の蓋
のみならず、上述の特性を生かして他の種々の食品容器
の蓋として利用できることは当然である。また、ＵＶカ
ット紙１１およびＵＶカットフィルム１３に使用される
酸化チタン以外の顔料としては、屈折率が２．０以上、
好ましくは２．３以上の顔料、例えばチタン酸鉛、酸化
ジルコン、酸化亜鉛、酸化アンチモンなども使用可能で
ある。It goes without saying that the lid material of the present invention can be used not only as a lid for an instant cup noodle container but also as a lid for various other food containers by taking advantage of the above characteristics. Further, as a pigment other than titanium oxide used for the UV cut paper 11 and the UV cut film 13, a refractive index of 2.0 or more,
Preferably 2.3 or more pigments such as lead titanate, zircon oxide, zinc oxide and antimony oxide can also be used.
【００１８】[0018]
【発明の効果】以上説明したように、本発明の蓋材によ
れば、アルミニウム箔などの金属材料を使用していない
ので、内容物を収め、蓋をした後の容器に対して金属探
知装置を使用することができ、容器内への金属異物の混
入を検知できる。また、容器に蓋をしたまま電子レンジ
によって内容物を加熱することができる。さらに、容器
使用後の廃棄物処理に際しても可燃性ゴミとして処分で
きる。As described above, according to the lid member of the present invention, since the metallic material such as the aluminum foil is not used, the metal detecting device is placed on the container after the contents are stored and the lid is closed. Can be used, and it is possible to detect the mixing of metallic foreign matters into the container. Further, the contents can be heated by a microwave oven while the container is covered. Furthermore, it can be disposed of as combustible waste when treating waste after using the container.
【００１９】また、ＵＶカット紙とＵＶカットフィルム
とを貼り合わせたものを使用しているので、適度の腰の
強さを有し、打ち抜き加工後に蓋がカールすることがな
い。さらに、外部からの紫外線が蓋で完全に遮断される
ので容器内の内容物が紫外線で劣化することもない。Further, since the UV cut paper and the UV cut film which are bonded together are used, the lid has an appropriate degree of elasticity and the lid does not curl after punching. Further, the ultraviolet rays from the outside are completely blocked by the lid, so that the contents in the container are not deteriorated by the ultraviolet rays.
【図１】 本発明の蓋材の一例を示す概略断面図であ
る。FIG. 1 is a schematic sectional view showing an example of a lid member of the present invention.
【図２】 従来の蓋材の概略断面図である。FIG. 2 is a schematic sectional view of a conventional lid member.
【図３】 容器に蓋を被せた状態を示す概略断面図であ
る。FIG. 3 is a schematic cross-sectional view showing a state in which a container is covered with a lid.
１１ ＵＶカット紙 １３ ＵＶカットフィルム １５ 熱融着樹脂層 11 UV Cut Paper 13 UV Cut Film 15 Heat Fusing Resin Layer
Claims (4)
フィルムを貼り合わせ、紫外線遮断性延伸フィルムの表
面に熱融着樹脂層を形成した食品容器用蓋材。1. A lid material for a food container, which comprises a UV-shielding processed paper and a UV-shielding stretched film bonded together, and a heat-sealing resin layer formed on the surface of the UV-shielding stretched film.
１５０ｇ／ｍ2 の紙に酸化チタン含有印刷インキを用い
て全面印刷を施したものである請求項１記載の食品容器
用蓋材。2. The UV-blocking processed paper has a basis weight of 80 to 80.
The lid material for a food container according to claim 1, wherein 150 g / m 2 of paper is entirely printed with a printing ink containing titanium oxide.
チタンおよび紫外線吸収剤を含有するものである請求項
１記載の食品容器用蓋材。3. The lid material for a food container according to claim 1, wherein the ultraviolet blocking stretched film contains titanium oxide and an ultraviolet absorber.
チタンおよび紫外線吸収剤を含有する高密度ポリエチレ
ンの一軸延伸フィルムである請求項１記載の食品容器用
蓋材。4. The lid material for a food container according to claim 1, wherein the ultraviolet blocking stretched film is a uniaxially stretched film of high density polyethylene containing titanium oxide and an ultraviolet absorber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8109633A JPH09295664A (en) | 1996-04-30 | 1996-04-30 | Lid material for food containers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8109633A JPH09295664A (en) | 1996-04-30 | 1996-04-30 | Lid material for food containers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09295664A true JPH09295664A (en) | 1997-11-18 |
Family
ID=14515234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8109633A Pending JPH09295664A (en) | 1996-04-30 | 1996-04-30 | Lid material for food containers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09295664A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000281096A (en) * | 1999-04-01 | 2000-10-10 | Dainippon Printing Co Ltd | Lid material |
| JP2002037311A (en) * | 2000-07-31 | 2002-02-06 | Toppan Printing Co Ltd | Instant food container lid |
| JP2002037312A (en) * | 2000-07-24 | 2002-02-06 | Toppan Printing Co Ltd | Lid material |
| JP2007308204A (en) * | 2007-06-29 | 2007-11-29 | Nihon Tetra Pak Kk | Liquid paper container |
| WO2008102822A1 (en) | 2007-02-20 | 2008-08-28 | Fujifilm Corporation | Polymer material containing ultraviolet absorbent |
| WO2008123504A1 (en) | 2007-03-30 | 2008-10-16 | Fujifilm Corporation | Ultraviolet ray absorber composition |
| WO2009022736A1 (en) | 2007-08-16 | 2009-02-19 | Fujifilm Corporation | Heterocyclic compound, ultraviolet ray absorbent, and composition comprising the ultraviolet ray absorbent |
| WO2009123141A1 (en) | 2008-03-31 | 2009-10-08 | 富士フイルム株式会社 | Ultraviolet absorbent compositions |
| WO2009123142A1 (en) | 2008-03-31 | 2009-10-08 | 富士フイルム株式会社 | Ultraviolet absorbent compositions |
| WO2009136624A1 (en) | 2008-05-09 | 2009-11-12 | 富士フイルム株式会社 | Ultraviolet absorbent composition |
| JP2010149881A (en) * | 2008-12-24 | 2010-07-08 | Daio Paper Corp | Base material for lid |
-
1996
- 1996-04-30 JP JP8109633A patent/JPH09295664A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000281096A (en) * | 1999-04-01 | 2000-10-10 | Dainippon Printing Co Ltd | Lid material |
| JP2002037312A (en) * | 2000-07-24 | 2002-02-06 | Toppan Printing Co Ltd | Lid material |
| JP2002037311A (en) * | 2000-07-31 | 2002-02-06 | Toppan Printing Co Ltd | Instant food container lid |
| WO2008102822A1 (en) | 2007-02-20 | 2008-08-28 | Fujifilm Corporation | Polymer material containing ultraviolet absorbent |
| WO2008123504A1 (en) | 2007-03-30 | 2008-10-16 | Fujifilm Corporation | Ultraviolet ray absorber composition |
| JP2007308204A (en) * | 2007-06-29 | 2007-11-29 | Nihon Tetra Pak Kk | Liquid paper container |
| WO2009022736A1 (en) | 2007-08-16 | 2009-02-19 | Fujifilm Corporation | Heterocyclic compound, ultraviolet ray absorbent, and composition comprising the ultraviolet ray absorbent |
| WO2009123141A1 (en) | 2008-03-31 | 2009-10-08 | 富士フイルム株式会社 | Ultraviolet absorbent compositions |
| WO2009123142A1 (en) | 2008-03-31 | 2009-10-08 | 富士フイルム株式会社 | Ultraviolet absorbent compositions |
| WO2009136624A1 (en) | 2008-05-09 | 2009-11-12 | 富士フイルム株式会社 | Ultraviolet absorbent composition |
| JP2010149881A (en) * | 2008-12-24 | 2010-07-08 | Daio Paper Corp | Base material for lid |
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