JP2003026252A - Container with light shielding characteristic - Google Patents
Container with light shielding characteristicInfo
- Publication number
- JP2003026252A JP2003026252A JP2001212415A JP2001212415A JP2003026252A JP 2003026252 A JP2003026252 A JP 2003026252A JP 2001212415 A JP2001212415 A JP 2001212415A JP 2001212415 A JP2001212415 A JP 2001212415A JP 2003026252 A JP2003026252 A JP 2003026252A
- Authority
- JP
- Japan
- Prior art keywords
- shrink film
- light
- film
- white
- brightness
- 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.)
- Granted
Links
- 229920006300 shrink film Polymers 0.000 claims abstract description 70
- 238000007639 printing Methods 0.000 claims abstract description 23
- 235000013305 food Nutrition 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 10
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 15
- 235000020124 milk-based beverage Nutrition 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 235000013361 beverage Nutrition 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 230000001953 sensory effect Effects 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- GVJHHUAWPYXKBD-UHFFFAOYSA-N (±)-α-Tocopherol Chemical compound OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000001782 photodegradation Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- LXNHXLLTXMVWPM-UHFFFAOYSA-N pyridoxine Chemical compound CC1=NC=C(CO)C(CO)=C1O LXNHXLLTXMVWPM-UHFFFAOYSA-N 0.000 description 2
- FPIPGXGPPPQFEQ-UHFFFAOYSA-N 13-cis retinol Natural products OCC=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-UHFFFAOYSA-N 0.000 description 1
- 102100033040 Carbonic anhydrase 12 Human genes 0.000 description 1
- 102100033029 Carbonic anhydrase-related protein 11 Human genes 0.000 description 1
- AUNGANRZJHBGPY-UHFFFAOYSA-N D-Lyxoflavin Natural products OCC(O)C(O)C(O)CN1C=2C=C(C)C(C)=CC=2N=C2C1=NC(=O)NC2=O AUNGANRZJHBGPY-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920006257 Heat-shrinkable film Polymers 0.000 description 1
- 101000867855 Homo sapiens Carbonic anhydrase 12 Proteins 0.000 description 1
- 101000867841 Homo sapiens Carbonic anhydrase-related protein 11 Proteins 0.000 description 1
- 101001075218 Homo sapiens Gastrokine-1 Proteins 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 241001529936 Murinae Species 0.000 description 1
- PVNIIMVLHYAWGP-UHFFFAOYSA-N Niacin Chemical compound OC(=O)C1=CC=CN=C1 PVNIIMVLHYAWGP-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- AUNGANRZJHBGPY-SCRDCRAPSA-N Riboflavin Chemical compound OC[C@@H](O)[C@@H](O)[C@@H](O)CN1C=2C=C(C)C(C)=CC=2N=C2C1=NC(=O)NC2=O AUNGANRZJHBGPY-SCRDCRAPSA-N 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 241001122767 Theaceae Species 0.000 description 1
- FPIPGXGPPPQFEQ-BOOMUCAASA-N Vitamin A Natural products OC/C=C(/C)\C=C\C=C(\C)/C=C/C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-BOOMUCAASA-N 0.000 description 1
- 229930003471 Vitamin B2 Natural products 0.000 description 1
- 229930003537 Vitamin B3 Natural products 0.000 description 1
- 229930003316 Vitamin D Natural products 0.000 description 1
- QYSXJUFSXHHAJI-XFEUOLMDSA-N Vitamin D3 Natural products C1(/[C@@H]2CC[C@@H]([C@]2(CCC1)C)[C@H](C)CCCC(C)C)=C/C=C1\C[C@@H](O)CCC1=C QYSXJUFSXHHAJI-XFEUOLMDSA-N 0.000 description 1
- 229930003427 Vitamin E Natural products 0.000 description 1
- 229930003448 Vitamin K Natural products 0.000 description 1
- FPIPGXGPPPQFEQ-OVSJKPMPSA-N all-trans-retinol Chemical compound OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-OVSJKPMPSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 239000008157 edible vegetable oil Substances 0.000 description 1
- WIGCFUFOHFEKBI-UHFFFAOYSA-N gamma-tocopherol Natural products CC(C)CCCC(C)CCCC(C)CCCC1CCC2C(C)C(O)C(C)C(C)C2O1 WIGCFUFOHFEKBI-UHFFFAOYSA-N 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229960003512 nicotinic acid Drugs 0.000 description 1
- DFPAKSUCGFBDDF-UHFFFAOYSA-N nicotinic acid amide Natural products NC(=O)C1=CC=CN=C1 DFPAKSUCGFBDDF-UHFFFAOYSA-N 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- SHUZOJHMOBOZST-UHFFFAOYSA-N phylloquinone Natural products CC(C)CCCCC(C)CCC(C)CCCC(=CCC1=C(C)C(=O)c2ccccc2C1=O)C SHUZOJHMOBOZST-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- RADKZDMFGJYCBB-UHFFFAOYSA-N pyridoxal hydrochloride Natural products CC1=NC=C(CO)C(C=O)=C1O RADKZDMFGJYCBB-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229960002477 riboflavin Drugs 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 235000011496 sports drink Nutrition 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 235000019155 vitamin A Nutrition 0.000 description 1
- 239000011719 vitamin A Substances 0.000 description 1
- 235000019164 vitamin B2 Nutrition 0.000 description 1
- 239000011716 vitamin B2 Substances 0.000 description 1
- 235000019160 vitamin B3 Nutrition 0.000 description 1
- 239000011708 vitamin B3 Substances 0.000 description 1
- 235000019158 vitamin B6 Nutrition 0.000 description 1
- 239000011726 vitamin B6 Substances 0.000 description 1
- 235000019166 vitamin D Nutrition 0.000 description 1
- 239000011710 vitamin D Substances 0.000 description 1
- 150000003710 vitamin D derivatives Chemical class 0.000 description 1
- 235000019165 vitamin E Nutrition 0.000 description 1
- 229940046009 vitamin E Drugs 0.000 description 1
- 239000011709 vitamin E Substances 0.000 description 1
- 235000019168 vitamin K Nutrition 0.000 description 1
- 239000011712 vitamin K Substances 0.000 description 1
- 150000003721 vitamin K derivatives Chemical class 0.000 description 1
- 229940045997 vitamin a Drugs 0.000 description 1
- 229940011671 vitamin b6 Drugs 0.000 description 1
- 229940046008 vitamin d Drugs 0.000 description 1
- 229940046010 vitamin k Drugs 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、シュリンク包装さ
れた遮光性を有する容器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shrink-wrapped container having a light-shielding property.
【０００２】[0002]
【従来の技術】近年、飲料容器としてペットボトルが普
及してきているが、ペットボトルは透明なため、中に入
れる飲料が光劣化する場合は、遮光をする必要があっ
た。遮光方法としては、ペットボトルを着色する方法が
行われてきたが、着色したペットボトルは、リサイクル
が困難であるという問題があった。そこで、遮光性を有
するシュリンクフィルム（熱収縮性フィルム）でペット
ボトルをシュリンク包装する方法が考えられた。しか
し、シュリンクフィルムは、デザインを自由に施すこと
が重要であるため、透明であるものがほとんどであり、
遮光を考慮したものはなかった。シュリンクフィルムに
遮光性を付与する方法としては、シュリンクフィルムに
アルミを蒸着する方法や、遮光性のある色を印刷する方
法が考えられる。しかし、アルミを蒸着させたシュリン
クフィルムは、シュリンクするとフィルムが白化すると
いう問題があり、さらに高コストであるため、工業的利
用には不向きであった。2. Description of the Related Art In recent years, PET bottles have become widespread as beverage containers. However, since PET bottles are transparent, it is necessary to block light when the beverage to be put therein is photo-deteriorated. As a light-shielding method, a method of coloring a PET bottle has been performed, but the colored PET bottle has a problem that it is difficult to recycle. Therefore, a method of shrink-wrapping a plastic bottle with a light-shielding shrink film (heat-shrinkable film) has been considered. However, shrink films are mostly transparent because it is important to freely design them.
There was no consideration for shading. As a method of providing the shrink film with a light-shielding property, a method of depositing aluminum on the shrink film or a method of printing a color having a light-shielding property can be considered. However, the shrink film formed by vapor-depositing aluminum has a problem that the film is whitened when it is shrunk, and the cost is high, so that it is not suitable for industrial use.
【０００３】また、遮光性のある色を印刷したシュリン
クフィルムは、例えば黒色印刷では、商品の宣伝等のた
めのデザインを施せなくなるという問題、白色印刷で
は、紫外領域はカットできるが、可視領域の遮光が不十
分であるという問題があった。さらに、白色印刷の上に
黒色印刷を施したシュリンクフィルムは、遮光性は満足
できるものであるが、その黒色が透けてネズミ色となっ
てしまい、デザインを施したときに、その文字等と下地
部分の明度差が不十分となり、デザインが不鮮明になる
ばかりか、全体的に暗い印象を購買者に与え、デザイン
の機能が発揮できないという問題があった。Further, a shrink film printed with a color having a light-shielding property has a problem in that, for example, black printing makes it impossible to design a product for advertising, and in white printing, the ultraviolet region can be cut, but the visible region can be cut. There was a problem of insufficient shading. In addition, the shrink film, which is printed in black on white, has satisfactory light-shielding properties, but the black makes it transparent and becomes a murine color. There was a problem that the difference in brightness of the part was insufficient, the design was not clear, and the overall impression was dark to the buyer, and the function of the design could not be exhibited.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、紫外領域だ
けでなく可視領域においても、十分な遮光性を有し、且
つ、デザイン性の向上を図ることができる、広告面の文
字等部分とその下地の明度差を充分に有し、並びに下地
の明度が十分なシュリンク包装された容器を提供するこ
とを課題とする。DISCLOSURE OF THE INVENTION The present invention provides a portion such as a character on an advertising surface which has a sufficient light-shielding property not only in the ultraviolet region but also in the visible region and which can improve the design. It is an object of the present invention to provide a shrink-wrapped container that has a sufficient difference in the brightness of the base and has a sufficient brightness of the base.
【０００５】[0005]
【課題を解決するための手段】本発明者らは、上記課題
を解決するために、鋭意研究を行ったところ、シュリン
クフィルムを、デザインを施したときに明度差が得られ
やすい白色又は乳白色とし、そのシュリンクフィルムに
遮光印刷を施すことで、十分な遮光性があり、デザイン
を施したときに、明確且つ鮮明である明度差を有し、且
つ安価であるシュリンクフィルムが得られ、このシュリ
ンクフィルムで容器をシュリンク包装することにより、
遮光性を有する容器が得られることを見出し、本発明を
完成するに至った。[Means for Solving the Problems] The inventors of the present invention have conducted extensive studies in order to solve the above-mentioned problems. As a result, the shrink film has a white or milky white color in which a difference in lightness is easily obtained when the shrink film is designed. By applying light-shielding printing to the shrink film, it is possible to obtain a shrink film that has sufficient light-shielding properties, has a clear and clear lightness difference when designed, and is inexpensive. By shrink-wrapping the container with
They have found that a container having a light-shielding property can be obtained, and completed the present invention.
【０００６】本発明においては、シュリンクフィルムで
包装された食品用容器において、該シュリンクフィルム
が色彩を有するシュリンクフィルムであり、その片面を
８５％以上の遮光性を有する、好ましくは９０％以上の
遮光性を有する、又は、最も好ましくは９５％以上の遮
光性を有するよう処理した面とし、その裏面が８０以上
の明度を有することを特徴とした、その機能を異とする
２面性のシュリンクフィルムを用いて、遮光処理面を容
器の表面に接着するよう、その容器の全面又は一部にシ
ュリンクして取り付けた食品用容器、及び本願発明で使
用されるシュリンクフィルムを提供するものである。In the present invention, in a food container packaged with a shrink film, the shrink film is a shrink film having a color, and one surface thereof has a light shielding property of 85% or more, preferably 90% or more of light shielding. Or a most preferably 95% or more light-shielding surface, and the back surface has a lightness of 80 or more, the two-sided shrink film having different functions. The present invention provides a food container, which is shrink-attached to the entire surface or a part of the container so that the light-shielding surface is bonded to the surface of the container, and the shrink film used in the present invention.
【０００７】またその一例として、白色又は乳白色のシ
ュリンクフィルムの片面に黒色印刷を施して遮光性を有
する面とし、その機能を異とする２面性のシュリンクフ
ィルムを用いて、その裏面に青色印刷を施した場合に、
青色印刷部分と白色又は乳白色部分との明度差が３２以
上であり、且つ白色又は乳白色部分の明度が８０以上で
あることを特徴としたシュリンクフィルムを取り付けた
請求項１に記載の食品用容器としても提供してもよい。
ここで、白色又は乳白色のベースフィルムを使用するこ
とで、透明若しくは黒色のベースフィルムに白色の印刷
を施すよりも、ホワイトチタン等の含量濃度を高くでき
る。これにより、当該シュリンクフィルムの片面に黒色
印刷を施しても、その裏面の白色又は乳白色面の明度を
８０以上にすることができる。As one example thereof, a white or milky white shrink film is black-printed on one side to have a light-shielding surface, and a double-sided shrink film having different functions is used to print blue on the back surface. If you apply
The food product container according to claim 1, wherein a shrink film is attached, wherein the difference in lightness between the blue printed portion and the white or milky white portion is 32 or more, and the lightness of the white or milky white portion is 80 or more. May also be provided.
Here, by using the white or milky white base film, the content concentration of white titanium or the like can be increased as compared with the case where the transparent or black base film is printed in white. Thereby, even if black printing is performed on one surface of the shrink film, the brightness of the white or milky white surface on the back surface can be 80 or more.
【０００８】さらに、上述した食品用容器及び当該シュ
リンクフィルムを用いて、光が当たることによる食品の
光劣化を防ぐ方法を提供するものである。Further, the present invention provides a method for preventing photo-deterioration of food due to exposure to light by using the above-mentioned food container and the shrink film.
【０００９】本願発明の請求項１及び２に記載の発明
は、シュリンクフィルムを取り付けた食品用容器を提供
するものであるが、該容器に充填・挿入する食品（固形
物、粉体物、液体物その他の食品の全ての形状を含む）
自体は、シュリンク包装する前に充填し、その後シュリ
ンク包装しても良い。また逆に、シュリンク包装した該
食品用容器に、食品を充填してもよい。すなわち食品の
充填時期、充填するか否か、充填方法その他の形態に関
わらず、該食品用容器を提供するものである。The invention according to claims 1 and 2 of the present invention provides a food container to which a shrink film is attached. The food (solid, powder, liquid) to be filled / inserted in the container is provided. (Including all shapes of food and other food)
The material itself may be filled before shrink-wrapping and then shrink-wrapped. Conversely, the shrink-wrapped food container may be filled with food. That is, the present invention provides the food container regardless of the filling time of the food, whether or not the food is filled, the filling method, and other forms.
【００１０】[0010]
【発明の実施の形態】本発明では、シュリンク包装に用
いるシュリンクフィルムとして、その機能・役割を異に
する２種類の面（ここで、２種類の面はその機能・役割
を異にしているので、その１又は２種類の層が多層構造
を有しているもよい）からなるシュリンクフィルムを作
成する（図１（１）））。このシュリンクフィルムの裏
面、すなわち容器側（図１（３））に、通常シュリンク
フィルムに印刷するときに行う方法で、可視領域におい
て遮光性の高い色、例えば黒色を印刷する。例えば、イ
ンクとして、カーボンブラックをアルコール、トルエン
等の溶剤に混ぜ込んだものを用いて、グラビア印刷する
ことが挙げられる。これにより、紫外、可視領域ともに
十分な遮光性が得られる機能を有する面となる（図１
（３））。BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, as a shrink film used for shrink packaging, two kinds of surfaces having different functions and roles (here, since two kinds of surfaces have different functions and roles, , Or one or two kinds of layers thereof may have a multilayer structure) (FIG. 1 (1))). On the back surface of this shrink film, that is, on the container side (FIG. 1 (3)), a color having a high light-shielding property in the visible region, for example, black is printed by a method usually used when printing on a shrink film. For example, it is possible to use gravure printing using an ink prepared by mixing carbon black with a solvent such as alcohol or toluene. As a result, the surface has a function of obtaining a sufficient light-shielding property in both the ultraviolet and visible regions (see FIG. 1).
(3)).
【００１１】一方で、商品の宣伝・説明のためのデザイ
ンを施す面は、白色又は乳白色に着色されたシュリンク
フィルムを用いる（図１（２））。このシュリンクフィ
ルムは、レジンと呼ばれるポリスチレンやポリエチレン
等の原料に、マスターバッチと呼ばれるホワイトチタン
等の顔料を混合し、フィルム状に製膜した後、延伸する
ことにより得ることができる。ここで、本発明では、こ
の白色又は乳白色に着色されたシュリンクフィルムをベ
ースフィルムとして使用することが特徴であり、印刷を
施すより多くのホワイトチタン等の顔料を含ませること
ができる。従来はシュリンクフィルムの片面に黒色印刷
をすることにより、その黒色が透けて、ネズミ色・灰色
となり、暗い又はくすんだ印象を持たれるものであった
が、本発明において、白色、乳白色のベースフィルムを
用いたシュリンクフィルムの表面、すなわちデザイン面
は、従来の黒色印刷を施していない程度の十分な明度・
明度差を得ることができる（図１（２））。本発明にお
けるシュリンクフィルムの明度・明度差の向上により、
シュリンクフィルムに商品の広告・説明のためのデザイ
ン面の向上が図られ、それと同時に、黒色を印刷したシ
ュリンクフィルムの裏面により、遮光性を有することが
できた。以下に試験例を示し、本発明をさらに詳細に説
明する。On the other hand, a shrink film colored in white or milky white is used for the surface on which a design for advertising and explaining the product is provided (FIG. 1 (2)). This shrink film can be obtained by mixing a raw material such as polystyrene or polyethylene called a resin with a pigment such as white titanium called a masterbatch, forming a film, and then stretching. Here, the present invention is characterized in that the shrink film colored in white or milky white is used as a base film, and more pigments such as white titanium to be printed can be included. Conventionally, by printing black on one side of a shrink film, the black color is transparent, and it becomes a rattish gray color, which gives a dark or dull impression, but in the present invention, a white, milky white base film The surface of the shrink film that uses, that is, the design surface, has sufficient brightness and lightness to the extent that conventional black printing is not applied.
The brightness difference can be obtained (FIG. 1 (2)). By improving the brightness / brightness difference of the shrink film in the present invention,
The design of the shrink film for advertising and explanation of the product was improved, and at the same time, the back side of the shrink film printed in black was able to have a light shielding property. Hereinafter, the present invention will be described in more detail with reference to test examples.
【００１２】[0012]
【試験例１】本発明におけるシュリンクフィルムの明度
・明度差を測定した。ここで、明度はＬ値（JIS規格）
をいう。デザインを施すベースフィルムを白色又は透明
シュリンクフィルムに分け、さらにその裏面に黒色、白
色のいずれか又は両方を１層若しくは２層印刷する、又
は何も印刷しない場合の、５種類のそれぞれのシュリン
クフィルムを作成した。そして、それぞれのシュリンク
フィルムについて、遮光度及び明度・明度差を測定し
た。明度は、そのデザイン面の下地部分を測定し、明度
差は何も印刷していない下地部分に青色を印刷して、そ
の明度差を算出した。測定対象は、白色のベースフィル
ムの片面に黒色印刷を施したシュリンクフィルムをフィ
ルム１とし、また、その片面に何らの印刷を施していな
いシュリンクフィルムをフィルム２とした。また、透明
のベースフィルムの片面に、白色を印刷したシュリンク
フィルムをフィルム３とし、白色と黒色を２層に印刷し
たシュリンクフィルムをフィルム４とし、フィルム４の
白色の上（ベースフィルムと白色印刷面の間）に、再度
白色を印刷したシュリンクフィルムをフィルム５とし
た。これらの結果を表１に示す。[Test Example 1] The brightness / brightness difference of the shrink film of the present invention was measured. Here, the brightness is the L value (JIS standard)
Say. The base film to be designed is divided into a white or transparent shrink film, and one or two layers of black, white, or both are printed on the back surface of the base film, or 5 layers of each shrink film are printed. It was created. And about each shrink film, the light-shielding degree and the lightness / lightness difference were measured. The lightness was measured by measuring the ground portion of the design surface, and the lightness difference was calculated by printing blue on the ground portion on which nothing was printed. The object to be measured was a shrink film in which black was printed on one side of a white base film as film 1, and a shrink film in which no printing was done on one side as film 2. Also, on one side of the transparent base film, the shrink film printed with white is film 3, and the shrink film printed with two layers of white and black is film 4, and on the white of film 4 (base film and white printed surface). The shrink film printed with white again in (between) was used as film 5. The results are shown in Table 1.
【００１３】[0013]
【表１】 [Table 1]
【００１４】この結果の明度（Ｌ値（JIS規格))は、そ
の数値が高ければ明度が向上、つまり、明るいことを表
し、また、明度差の数値も高ければ、印刷した文字等
（試験では青色部分）もはっきり分かることとなる。結
果は、本発明にかかるフィルム１は、十分な遮光度が得
られた上に、明度差も３９．２９を示した。この値は、
その裏面に何らの印刷をしないフィルム（フィルム２）
の４３．０４、及び透明なベースフィルムに白色を印刷
したフィルム（フィルム３）の４０．１３と非常に近い
値を示していることが分かる。さらに、フィルム１の明
度自体も８８．０５と高く、フィルム２及び３とほとん
ど変わらない値であった。この結果は従来の技術におけ
る、シュリンクフィルムの片面に黒色を印刷した場合の
明度の低下によるデザイン面が灰色等になることを完全
に防いでいることが示されている。しかも、その明度差
も高いことからデザイン面に文字等の情報を印刷した場
合も、明確に読みとることができる特徴を持つことが示
された。The lightness (L value (JIS standard)) of the result indicates that the higher the value, the higher the lightness, that is, the lighter. Also, if the value of the lightness difference is also high, the printed characters or the like (in the test, The blue part) will also be clearly visible. As a result, in the film 1 according to the present invention, a sufficient light-shielding degree was obtained and the brightness difference was 39.29. This value is
Film with no printing on its back (Film 2)
43.04, and a value very close to 40.13 of the film (film 3) in which white is printed on the transparent base film. Further, the brightness itself of film 1 was as high as 88.05, which was almost the same as that of films 2 and 3. This result shows that the conventional technique completely prevents the design surface from becoming gray or the like due to the decrease in brightness when black is printed on one surface of the shrink film. Moreover, since the difference in brightness is also high, it has been shown that even when information such as characters is printed on the design surface, it can be clearly read.
【００１５】これに対して、従来より考えられている透
明なベースフィルムの片面に、白色と黒色のように２層
の印刷をしたフィルム（フィルム４）では、明度差は
８．４と著しく減少する。また、フィルム４に再度、白
色印刷を加えた３層からなる印刷面としても、明度及び
明度差の値は向上するが、本発明に係るフィルム１の場
合の数値には及ばないことが分かる。On the other hand, in the case of a film (Film 4) in which two layers of white and black are printed on one surface of a transparent base film which has been conventionally considered, the difference in lightness is remarkably reduced to 8.4. To do. Also, it can be seen that the value of the brightness and the difference in the brightness is improved even if the printing surface made up of the three layers in which the white printing is added again to the film 4 is improved, but it does not reach the numerical values in the case of the film 1 according to the present invention.
【００１６】次に、それぞれのシュリンクフィルムの遮
光度（％）を見ていく。本発明に係る黒色印刷は９９％
の遮光性を有するので、試験で用いた如何なる態様（フ
ィルム１、４及び５）でも同じ遮光効果を有することが
示された。また、同じ白色フィルムでも、ベースフィル
ム自体を白色フィルムとした場合（フィルム２）と印刷
面のみを白色印刷とした場合（フィルム３）では、その
遮光度がそれぞれ６０％、５０％と異なる。つまり、白
色のベースフィルムは、単なる白色印刷よりも遮光性が
あり、これは本発明の効果であるフィルム１の明度・明
度差の向上を示唆しているものである。上記の試験か
ら、白色シュリンクフィルムに黒色印刷を施したフィル
ム１は、明度・明度差及び遮光性を同時に兼ね備えるも
のであり、従来技術とは全く新規な効果を奏することが
分かった。本発明に係るフィルム１により、十分な遮光
性を有しながら、その片面に黒色印刷を施していない場
合と明度・明度差を有することから、デザイン面の下地
のくすんだ感じはなく、さらに明確且つ鮮明なデザイン
が自由に施せることがわかった。Next, the light-shielding degree (%) of each shrink film will be examined. Black printing according to the present invention is 99%
Therefore, it was shown that any of the modes (Films 1, 4 and 5) used in the test have the same light-shielding effect. Further, even with the same white film, when the base film itself is a white film (film 2) and when only the printing surface is white printed (film 3), the light-shielding degrees are 60% and 50%, respectively. That is, the white base film has a light-shielding property rather than simple white printing, which suggests that the effect of the present invention is to improve the lightness / brightness difference of the film 1. From the above-mentioned test, it was found that the film 1 obtained by printing the white shrink film on the black color simultaneously had the lightness / brightness difference and the light-shielding property, and exhibited a completely new effect as compared with the prior art. With the film 1 according to the present invention, while having a sufficient light-shielding property, there is a lightness / brightness difference as compared to the case where one side is not black-printed, so that there is no dull feeling of the background of the design surface, and it is clearer. And it turned out that a clear design could be given freely.
【００１７】[0017]
【試験例２】本発明に係るシュリンクフィルムの装着に
よる、飲料等の光劣化による味覚変化の影響について試
験した。乳飲料を充填した透明なペットボトルの側面を
試験例１で使用したシュリンクフィルムでシュリンク包
装し、10℃で、2,000ルクスの光を7日間（168時間）照
射したのち、中の乳飲料について官能評価を行った。比
較品５としてシュリンク包装をしていない透明なペット
ボトルについても同様の官能評価を行った。官能評価
は、10人のパネルに対して行い、10点満点で評価しても
らい、その平均点で評価した。7点以下は、製品として
認められない程度まで劣化している。その結果を表２に
示す。[Test Example 2] The effect of the taste change due to the photodeterioration of beverages and the like by the wearing of the shrink film according to the present invention was tested. The side of a transparent PET bottle filled with milk drink was shrink-wrapped with the shrink film used in Test Example 1, and irradiated with light of 2,000 lux for 7 days (168 hours) at 10 ° C. An evaluation was made. The same sensory evaluation was performed on a transparent PET bottle that was not shrink-wrapped as Comparative Product 5. Sensory evaluation was performed on a panel of 10 people, and they were evaluated on a scale of 10 points, and the average was evaluated. 7 points or less are deteriorated to the extent that they are not recognized as products. The results are shown in Table 2.
【００１８】[0018]
【表２】 [Table 2]
【００１９】これによると、本発明品、比較品３及び比
較品４は、官能評価で高い評点を得たが、比較品１、比
較品２及び比較品５は、製品として認められない程度ま
で劣化していた。つまり、試験例１の遮光度（％）と正
の相関関係にあることが分かり、光劣化による味覚変化
を防止させるためには、一定以上の遮光性を有するフィ
ルム等の措置が必要であることが示された。試験例１及
び試験例２の結果から、本発明品は、製品の劣化による
味覚変化を防止するのに十分な遮光度があり、かつ鮮明
なデザインを自由に施せることが示された。According to this, the product of the present invention, the comparative product 3 and the comparative product 4 obtained high sensory evaluation scores, but the comparative product 1, the comparative product 2 and the comparative product 5 were not recognized as products. It had deteriorated. In other words, it was found that there is a positive correlation with the light-shielding degree (%) of Test Example 1, and measures such as a film having a light-shielding property of a certain level or more are required to prevent taste change due to photodegradation. It has been shown. From the results of Test Example 1 and Test Example 2, it was shown that the product of the present invention has a sufficient degree of light shielding to prevent a change in taste due to deterioration of the product and can be freely provided with a clear design.
【００２０】[0020]
【発明の効果】本発明の遮光性を有する容器は、容器そ
のものを着色していないので、容器のリサイクルが容易
である。また、シュリンクフィルムの片面に遮光性を有
する黒色印刷を施したことで、紫外領域だけでなく可視
領域においても、十分な遮光性を有し、光劣化が問題と
なる飲料一般、特に乳飲料、食用油、乳製品などの保存
性を高めることができる。この効果は、上記以外でも光
で破壊されるビタミン入りの飲料（お茶やスポーツ飲
料、特定健康飲料、栄養ドリンク）等で有用であること
が挙げられる。例えば、脂溶性のビタミンＡ、ビタミン
Ｄ、ビタミンＥ、ビタミンＫは光に不安定であり、水溶
性のビタミンＢ２、ビタミンＢ３、ビタミンＢ６も同様
に光に不安定であることが知られている。The light-shielding container of the present invention is easy to recycle because the container itself is not colored. Further, by performing a black print having a light-shielding property on one side of the shrink film, not only in the ultraviolet region but also in the visible region, there is sufficient light-shielding property, beverages in which photodegradation becomes a problem, especially milk drinks, The storability of edible oils, dairy products, etc. can be improved. Other than the above, this effect is useful in drinks containing vitamins that are destroyed by light (tea, sports drinks, specified health drinks, nutritional drinks), and the like. For example, it is known that fat-soluble vitamin A, vitamin D, vitamin E, and vitamin K are unstable to light, and water-soluble vitamin B2, vitamin B3, and vitamin B6 are also unstable to light. .
【００２１】さらに、白色のベースフィルムデザインを
施したときに、その片面（裏面）に黒色を印刷すること
による、明度の低下が抑制され、商品包装に明るい印象
を持たせることができる。並びに、明度差も高いことか
ら、商品等の広告、宣伝又は説明に用いられる文字、マ
ーク又は図形等を明確且つ鮮明に施すことができる。
尚、従来のシュリンクフィルムにアルミを蒸着する方法
に比して、本発明におけるシュリンクフィルムは安価で
生産することができることも有用である。Furthermore, when a white base film is designed, a decrease in brightness due to printing black on one surface (back surface) of the white base film is suppressed, and a bright impression can be given to the product packaging. In addition, since the difference in brightness is also high, it is possible to clearly and clearly apply characters, marks, figures, etc. used for advertising, advertising, or explanation of products and the like.
It is also useful that the shrink film of the present invention can be produced at low cost, as compared with the conventional method of depositing aluminum on the shrink film.
【００２２】加えて、本発明による容器により、遮光性
を備えさせるためにペットボトル等に着色しなくともよ
く、よりリサイクルに適した透明のペットボトルを使用
することができる。In addition, with the container according to the present invention, it is not necessary to color a PET bottle or the like in order to provide a light-shielding property, and a transparent PET bottle more suitable for recycling can be used.
【図１（１）】 本発明におけるシュリンクフィルムの
断面図を示す説明図。FIG. 1 (1) is an explanatory view showing a cross-sectional view of a shrink film in the present invention.
【図１（２）】 本発明におけるシュリンクフィルムの
商品の広告・説明面を示す説明図。FIG. 1 (2) is an explanatory view showing an advertisement / explanation surface of a shrink film product according to the present invention.
【図１（３）】 本発明におけるシュリンクフィルムの
遮光性を有する面を示す説明図。FIG. 1 (3) is an explanatory view showing a surface having a light shielding property of the shrink film in the present invention.
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3E067 AA03 AB26 BA03B BA18C BB14B BB14C BB25C BC03B BC03C CA01 CA12 FA01 FB01 FC03 GD02 3E086 AD16 BA02 BA04 BA15 BA35 BB21 BB67 CA11 CA23 4F100 AR00A AR00B BA02 BA07 BA10B GB23 HB31A HB31B JA03 JA03A JA03B JL10A JL10B JN02 JN02A JN30B YY00A YY00B ─────────────────────────────────────────────────── ─── Continued front page F term (reference) 3E067 AA03 AB26 BA03B BA18C BB14B BB14C BB25C BC03B BC03C CA01 CA12 FA01 FB01 FC03 GD02 3E086 AD16 BA02 BA04 BA15 BA35 BB21 BB67 CA11 CA23 4F100 AR00A AR00B BA02 BA07 BA10B GB23 HB31A HB31B JA03 JA03A JA03B JL10A JL10B JN02 JN02A JN30B YY00A YY00B
Claims (4)
器において、該シュリンクフィルムが色彩を有するシュ
リンクフィルムであり、その片面を、８５％以上の遮光
性を有する、好ましくは９０％以上の遮光性を有する、
最も好ましくは９５％以上の遮光性を有するよう処理し
た面とし、その裏面が８０以上の明度を有することを特
徴とした、その機能を異とする２面性のシュリンクフィ
ルムであって、遮光性を有するよう処理した面が容器の
表面に接着するよう、その容器の全面又は一部にシュリ
ンクして取り付けた食品用容器。1. A food container packaged with a shrink film, wherein the shrink film is a colored shrink film, and one side thereof has a light-shielding property of 85% or more, preferably 90% or more. Have,
Most preferably, it is a two-sided shrink film having different functions, characterized by having a surface treated to have a light-shielding property of 95% or more and having a lightness of 80 or more on the back surface. A food container that is shrink-attached to the entire surface or a part of the container so that the surface treated so as to adhere to the surface of the container.
ュリンクフィルムであり、その片面を、黒色印刷を施し
て遮光性を有するよう処理した面とし、その裏面に青色
印刷を施した場合に、青色印刷部分と白色若しくは乳白
色部分との明度差が３２以上であり、且つ白色若しくは
乳白色部分の明度が８０以上であることを特徴としたシ
ュリンクフィルムである請求項１に記載の食品用容器。2. The shrink film is a white or milky white shrink film, one surface of which is subjected to black printing to have a light-shielding property, and when blue printing is applied to the back surface, a blue printing portion 2. The food container according to claim 1, wherein the shrink film is a shrink film having a lightness difference of 32 or more between a white or milky white portion and a lightness of 80 or more in a white or milky white portion.
て、該シュリンクフィルムを色彩を有するシュリンクフ
ィルムとし、その片面を、８５％以上の遮光性を有す
る、好ましくは９０％以上の遮光性を有する、最も好ま
しくは９５％以上の遮光性を有するよう処理した面と
し、その裏面が８０以上の明度を有することを特徴とし
た、その機能を異とする２面性のシュリンクフィルム。3. A shrink film for packaging food containers, wherein the shrink film is a colored shrink film, and one side thereof has a light-shielding property of 85% or more, preferably 90% or more, most preferably Is a two-sided shrink film having different functions, characterized in that it has a surface treated to have a light-shielding property of 95% or more, and the back surface has a brightness of 80 or more.
て、光が当たることによる食品の光劣化を防ぐ方法。4. A method for preventing photo-deterioration of food by exposure to light by using at least one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001212415A JP4891496B2 (en) | 2001-07-12 | 2001-07-12 | Light-shielding container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001212415A JP4891496B2 (en) | 2001-07-12 | 2001-07-12 | Light-shielding container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003026252A true JP2003026252A (en) | 2003-01-29 |
| JP4891496B2 JP4891496B2 (en) | 2012-03-07 |
Family
ID=19047579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001212415A Expired - Fee Related JP4891496B2 (en) | 2001-07-12 | 2001-07-12 | Light-shielding container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4891496B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004094139A1 (en) | 2003-04-24 | 2004-11-04 | Fuji Seal International, Inc. | Heat-shrinkable milky film, shrink label and container with label |
| WO2011132638A1 (en) * | 2010-04-19 | 2011-10-27 | 大塚製薬株式会社 | Bottled carbonated beverage containing soybean powder or soy milk |
| CN113772276A (en) * | 2016-12-01 | 2021-12-10 | 柯尼卡美能达株式会社 | Package of film roll |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61235139A (en) * | 1985-04-12 | 1986-10-20 | シ−アイ化成株式会社 | Light-shielding packaging materila and manufacture thereof |
| JP2001125488A (en) * | 1999-10-26 | 2001-05-11 | Dainippon Printing Co Ltd | Light shieldable label and light shieldable container |
-
2001
- 2001-07-12 JP JP2001212415A patent/JP4891496B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61235139A (en) * | 1985-04-12 | 1986-10-20 | シ−アイ化成株式会社 | Light-shielding packaging materila and manufacture thereof |
| JP2001125488A (en) * | 1999-10-26 | 2001-05-11 | Dainippon Printing Co Ltd | Light shieldable label and light shieldable container |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004094139A1 (en) | 2003-04-24 | 2004-11-04 | Fuji Seal International, Inc. | Heat-shrinkable milky film, shrink label and container with label |
| JPWO2004094139A1 (en) * | 2003-04-24 | 2006-07-13 | 株式会社フジシールインターナショナル | Heat-shrinkable milky film, shrink label and labeled container |
| US7807255B2 (en) | 2003-04-24 | 2010-10-05 | Fuji Seal International, Inc. | Heat-shrinkable milky film, shrink label and container with label |
| WO2011132638A1 (en) * | 2010-04-19 | 2011-10-27 | 大塚製薬株式会社 | Bottled carbonated beverage containing soybean powder or soy milk |
| JP5925119B2 (en) * | 2010-04-19 | 2016-05-25 | 大塚製薬株式会社 | Bottled carbonated drink containing soy powder or soy milk |
| CN113772276A (en) * | 2016-12-01 | 2021-12-10 | 柯尼卡美能达株式会社 | Package of film roll |
| CN113772276B (en) * | 2016-12-01 | 2023-05-09 | 柯尼卡美能达株式会社 | Packaging body for film roll |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4891496B2 (en) | 2012-03-07 |
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