JPH0844295A - Thermosensitive label - Google Patents
Thermosensitive labelInfo
- Publication number
- JPH0844295A JPH0844295A JP17677894A JP17677894A JPH0844295A JP H0844295 A JPH0844295 A JP H0844295A JP 17677894 A JP17677894 A JP 17677894A JP 17677894 A JP17677894 A JP 17677894A JP H0844295 A JPH0844295 A JP H0844295A
- Authority
- JP
- Japan
- Prior art keywords
- label
- heat
- sensitive
- layer
- adhesive layer
- 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
- 239000010410 layer Substances 0.000 claims abstract description 28
- 239000012790 adhesive layer Substances 0.000 claims abstract description 27
- 125000003700 epoxy group Chemical group 0.000 claims abstract description 19
- 239000011342 resin composition Substances 0.000 claims abstract description 14
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000005977 Ethylene Substances 0.000 claims abstract description 11
- 229910000077 silane Inorganic materials 0.000 claims abstract description 9
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000007639 printing Methods 0.000 claims description 12
- 229920003067 (meth)acrylic acid ester copolymer Polymers 0.000 claims description 10
- 229920001038 ethylene copolymer Polymers 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 6
- 239000011521 glass Substances 0.000 abstract description 21
- 239000000853 adhesive Substances 0.000 abstract description 15
- 230000001070 adhesive effect Effects 0.000 abstract description 15
- 229920000098 polyolefin Polymers 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 229920001577 copolymer Polymers 0.000 abstract description 8
- 230000001954 sterilising effect Effects 0.000 abstract description 6
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 238000004804 winding Methods 0.000 abstract description 4
- 238000012856 packing Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 20
- 239000000463 material Substances 0.000 description 7
- -1 polypropylene Polymers 0.000 description 7
- 229920006257 Heat-shrinkable film Polymers 0.000 description 6
- 229920002799 BoPET Polymers 0.000 description 4
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- WDQMWEYDKDCEHT-UHFFFAOYSA-N 2-ethylhexyl 2-methylprop-2-enoate Chemical compound CCCCC(CC)COC(=O)C(C)=C WDQMWEYDKDCEHT-UHFFFAOYSA-N 0.000 description 1
- CFVWNXQPGQOHRJ-UHFFFAOYSA-N 2-methylpropyl prop-2-enoate Chemical compound CC(C)COC(=O)C=C CFVWNXQPGQOHRJ-UHFFFAOYSA-N 0.000 description 1
- OOYYYGOZSPVMNY-UHFFFAOYSA-N 3-(disilanylsilyl)propyl 2-methylprop-2-enoate Chemical compound C(C(=C)C)(=O)OCCC[SiH2][SiH2][SiH3] OOYYYGOZSPVMNY-UHFFFAOYSA-N 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- NOZAQBYNLKNDRT-UHFFFAOYSA-N [diacetyloxy(ethenyl)silyl] acetate Chemical compound CC(=O)O[Si](OC(C)=O)(OC(C)=O)C=C NOZAQBYNLKNDRT-UHFFFAOYSA-N 0.000 description 1
- RMKZLFMHXZAGTM-UHFFFAOYSA-N [dimethoxy(propyl)silyl]oxymethyl prop-2-enoate Chemical compound CCC[Si](OC)(OC)OCOC(=O)C=C RMKZLFMHXZAGTM-UHFFFAOYSA-N 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- WOXXJEVNDJOOLV-UHFFFAOYSA-N ethenyl-tris(2-methoxyethoxy)silane Chemical compound COCCO[Si](OCCOC)(OCCOC)C=C WOXXJEVNDJOOLV-UHFFFAOYSA-N 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- LNCPIMCVTKXXOY-UHFFFAOYSA-N hexyl 2-methylprop-2-enoate Chemical compound CCCCCCOC(=O)C(C)=C LNCPIMCVTKXXOY-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- ARYZCSRUUPFYMY-UHFFFAOYSA-N methoxysilane Chemical compound CO[SiH3] ARYZCSRUUPFYMY-UHFFFAOYSA-N 0.000 description 1
- ANISOHQJBAQUQP-UHFFFAOYSA-N octyl prop-2-enoate Chemical compound CCCCCCCCOC(=O)C=C ANISOHQJBAQUQP-UHFFFAOYSA-N 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- LYBIZMNPXTXVMV-UHFFFAOYSA-N propan-2-yl prop-2-enoate Chemical compound CC(C)OC(=O)C=C LYBIZMNPXTXVMV-UHFFFAOYSA-N 0.000 description 1
- NHARPDSAXCBDDR-UHFFFAOYSA-N propyl 2-methylprop-2-enoate Chemical compound CCCOC(=O)C(C)=C NHARPDSAXCBDDR-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical class [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ガラス瓶や金属缶等の
耐熱性を有する被着体に貼着される感熱ラベルの改良に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a heat-sensitive label attached to a heat-resistant adherend such as a glass bottle or a metal can.
【０００２】[0002]
【従来の技術】感熱ラベルは、ラベル本体の裏面に、加
熱によって活性化して接着可能となる感熱接着剤が設け
られたものであるが、従来、該ラベル本体としては、
紙，合成樹脂製フィルムからなる基材が使用され、ま
た、前記感熱接着剤としては、通常、エチレン酢酸ビニ
ル共重合体，塩素化ポリプロピレン，アクリル酸エステ
ル共重合体等からなる接着剤が使用されていた。2. Description of the Related Art A heat-sensitive label is a label body provided with a heat-sensitive adhesive which is activated by heating and can be bonded to the back surface of the label body.
A base material made of paper or a synthetic resin film is used, and as the heat-sensitive adhesive, an adhesive made of ethylene vinyl acetate copolymer, chlorinated polypropylene, acrylic ester copolymer, etc. is usually used. Was there.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前記従
来の感熱ラベルは、ガラスに対する接着性が悪く、特
に、水に濡れた場合は被着体から該ラベルが容易に剥離
してしまうという問題が生じた。However, the conventional heat-sensitive label has poor adhesiveness to glass, and in particular, there is a problem that the label easily peels from the adherend when wet with water. It was
【０００４】従って、流通時に水濡れの恐れが多いにあ
り得る、飲料水等が充填されたガラス瓶にラベルを貼着
した後、充填物を温水シャワー等で低温加熱殺菌する
（俗にパストライザー工程という。）ガラス瓶等につい
てはその使用が不可能であった。Therefore, after sticking a label to a glass bottle filled with drinking water, which is likely to be wet with water during distribution, the filled material is sterilized by low-temperature heating in a hot water shower or the like (generally, the pasteurizer process). It was impossible to use glass bottles.
【０００５】また、合成樹脂製フィルム、特にポリエス
テル製フィルムからなる基材を使用した従来の感熱ラベ
ルを飲料水等が充填される金属缶などの胴部全周に巻装
させて利用する場合、該金属缶への接着力は得られて
も、ラベルの端部におけるラベル同士の重ね合された接
着部分、即ち、前記フィルム（ラベル本体）と感熱接着
剤との接着力が殆ど得られないものであった。When a conventional heat-sensitive label using a base material made of a synthetic resin film, particularly a polyester film, is used by being wrapped around the entire body of a metal can or the like filled with drinking water, Adhesive strength to the metal can is obtained, but adhesive strength between the labels at the end of the label, that is, the adhesive strength between the film (label body) and the heat-sensitive adhesive is hardly obtained. Met.
【０００６】このため、ラベル本体となる基材として熱
収縮性フィルムを使用した場合には、加熱収縮時にラベ
ルの端部が剥離しやすいという多大な問題があった。Therefore, when a heat-shrinkable film is used as the base material for the label body, there is a great problem that the end portion of the label is easily peeled off during heat shrinkage.
【０００７】本発明は、上記従来の問題点に鑑みてなさ
れたもので、水処理や低温加熱殺菌等が施されるガラス
瓶への貼着はもとより、金属缶等の全体被包、又は胴部
全周の巻装に使用される感熱ラベルであり、且つ該ラベ
ルが剥離することを防止すると共に、ラベル同士の端部
処理が強固、即ち被着体へもラベル本体へも充分な接着
力を得ることが可能な感熱ラベルを提供することを課題
とする。The present invention has been made in view of the above-mentioned conventional problems, and it is not only applied to a glass bottle that is subjected to water treatment, low temperature heat sterilization, etc., but also the entire encapsulation of a metal can or the body. It is a heat-sensitive label used for wrapping around the entire circumference, and prevents the label from peeling off, and the edge treatment between the labels is strong, that is, sufficient adhesive force is applied to both the adherend and the label body. An object is to provide a heat-sensitive label that can be obtained.
【０００８】[0008]
【課題を解決するための手段】本発明は、上記課題を解
決するために、次の技術的手段を講じる。The present invention takes the following technical means in order to solve the above problems.
【０００９】即ち、ラベル本体1 と、該ラベル本体1 の
裏面に設けられた感熱接着剤層2 とからなる感熱ラベル
において、前記ラベル本体1 には印刷層4 が設けられて
なると共に、前記感熱接着剤層2 が、エチレン・（メ
タ）アクリル酸エステル共重合体及びエポキシ基を有す
るオレフィン系重合体のシラングラフト変性体よりなる
樹脂組成物から形成されていることを特徴とし、また、
前記ラベル本体1 が、表面側が透明なフィルム層3 から
形成され、裏面側に印刷層4 が設けられてなることを特
徴としている。That is, in a heat-sensitive label comprising a label body 1 and a heat-sensitive adhesive layer 2 provided on the back surface of the label body 1, the label body 1 is provided with a printing layer 4 and The adhesive layer 2 is characterized in that it is formed from a resin composition comprising an ethylene / (meth) acrylic acid ester copolymer and a silane graft modified product of an olefinic polymer having an epoxy group,
The label body 1 is characterized in that the front surface side is formed from a transparent film layer 3 and the back surface side is provided with a printing layer 4.
【００１０】[0010]
【作用】本発明の感熱ラベルA をプレラベル、即ち充填
前に被着体へ貼着し、その状態で移動が施されるラベル
として使用される際、貼着後に低温加熱殺菌など水処理
が施された場合であっても、該本発明の感熱ラベルA の
感熱接着剤層2 がエチレン・（メタ）アクリル酸エステ
ル共重合体及びエポキシ基を有するオレフィン系重合体
のシラングラフト変性体よりなる樹脂組成物から形成さ
れてなるものであるので、貼着後、耐水性及び耐熱性が
あると共に貼着力が強固となり、剥離することがなくな
る。従って、水処理や低温加熱殺菌等が施されるガラス
瓶B1などへの貼着であっても充分その使用が可能とな
る。When the heat-sensitive label A of the present invention is used as a pre-label, that is, a label that is adhered to an adherend before filling and is moved in that state, it is subjected to water treatment such as low-temperature heat sterilization after adhesion. Even if it is applied, the heat-sensitive adhesive layer 2 of the heat-sensitive label A of the present invention is a resin comprising an ethylene / (meth) acrylic acid ester copolymer and a silane-grafted modified olefin polymer having an epoxy group. Since it is formed from the composition, it has water resistance and heat resistance after being adhered, the adhesion force becomes strong, and peeling does not occur. Therefore, even when it is attached to the glass bottle B 1 which is subjected to water treatment or low temperature heat sterilization, it can be used sufficiently.
【００１１】また、本発明の感熱ラベルA をシュリンク
ラベルとして金属缶B2や乾電池等の被着体に巻装被覆し
て使用する場合であっても、該被着体の側面全面には勿
論、該ラベルA の端部同士、即ち、ラベルA のラベル本
体1 と、前記エチレン・（メタ）アクリル酸エステル共
重合体及びエポキシ基を有するオレフィン系重合体のシ
ラングラフト変性体よりなる樹脂組成物から形成された
感熱接着剤層2 との重ね合わせ部分においても非常に強
固に貼着がなされ、ラベルA の端部も綺麗になる。Even when the heat-sensitive label A of the present invention is used as a shrink label by winding and covering it on an adherend such as a metal can B 2 or a dry battery, the side surface of the adherend is of course covered. A resin composition consisting of the ends of the label A, that is, the label body 1 of the label A, and a silane-grafted modified product of the ethylene / (meth) acrylic acid ester copolymer and an olefin polymer having an epoxy group. Even at the overlapping portion with the heat-sensitive adhesive layer 2 formed from, the sticking is performed very firmly, and the end portion of the label A becomes clean.
【００１２】[0012]
【実施例】本発明の感熱ラベルは、一面をラベル本体1
、他面を感熱接着剤層2 とした耐熱性を有する例え
ば、ガラス瓶B1や金属缶B2、乾電池等の被着体に貼着さ
れる感熱ラベルA であり、該ラベルの前記感熱接着剤層
2 の改良を行ったものである。[Example] The thermal label of the present invention has a label body 1 on one side.
A heat-sensitive adhesive having a heat-sensitive adhesive layer 2 on the other side, for example, a heat-sensitive label A attached to an adherend such as a glass bottle B 1 , a metal can B 2 or a dry battery, and the heat-sensitive adhesive of the label. layer
It is an improvement of 2.
【００１３】以下、本発明の一実施例について図面に基
づき説明する。An embodiment of the present invention will be described below with reference to the drawings.
【００１４】本発明の感熱ラベルA は、図１で示すよう
に、表面側が二軸延伸のポリエチレンテレフタレート
（ＰＥＴ）フィルムからなる厚さ１２〜１００μm 程度
の透明なフィルム層3 から形成されてなると共に、その
裏面側には、グラビア印刷やフレキソ印刷等により、商
標や文字絵柄等の印刷層4 が設けられたラベル本体1 を
表面とし、裏面を加熱することにより活性化して接着性
を生ずる、厚さ５〜５０μm 、好ましくは１０〜３０μ
m の感熱接着剤層2 として構成されたものである。As shown in FIG. 1, the heat-sensitive label A of the present invention is composed of a transparent film layer 3 having a thickness of 12 to 100 μm and made of a biaxially stretched polyethylene terephthalate (PET) film on the surface side. The label body 1 on the back side of which is provided with a printing layer 4 of a trademark or a character pattern by gravure printing or flexographic printing is used as the front side, and the back side is activated to generate adhesiveness by heating. 5 to 50 μm, preferably 10 to 30 μm
It is configured as a heat-sensitive adhesive layer 2 of m 2.
【００１５】本発明において、前記感熱接着剤層2 は、
エチレン・（メタ）アクリル酸エステル共重合体及びエ
ポキシ基を含有するエポキシ基を有するオレフィン系重
合体のシラングラフト変性体よりなる樹脂組成物から形
成されたものであり、例えば、三井・デュポン・ポリケ
ミカル（株）製の、商品名 ＨＰＲ ＡＳ ２５１等が
用いられる。In the present invention, the heat-sensitive adhesive layer 2 is
It is formed from a resin composition comprising an ethylene / (meth) acrylic acid ester copolymer and a silane graft modified product of an epoxy group-containing olefin polymer having an epoxy group, and includes, for example, Mitsui DuPont Poly A trade name HPR AS 251 manufactured by Chemical Co., Ltd. is used.
【００１６】前記感熱接着剤層2 を構成する樹脂組成物
のうち、エチレン・（メタ）アクリル酸エステル共重合
体としては、公知のアクリル酸メチル，アクリル酸エチ
ル，アクリル酸イソプロピル，アクリル酸ｎ−ブチル，
アクリル酸イソブチル，アクリル酸ｎ−オクチル等のア
クリル酸エステルや、メタクリル酸エチル，メタクリル
酸ｎ−プロピル，メタクリル酸ｎ−ブチル，メタクリル
酸ｎ−ヘキシル，メタクリル酸-2- エチルヘキシル等の
メタクリル酸エステルなどを挙げることができる。Among the resin compositions constituting the heat-sensitive adhesive layer 2, as the ethylene / (meth) acrylic acid ester copolymer, known methyl acrylate, ethyl acrylate, isopropyl acrylate, n-acrylate Butyl,
Acrylic acid esters such as isobutyl acrylate and n-octyl acrylate, and methacrylic acid esters such as ethyl methacrylate, n-propyl methacrylate, n-butyl methacrylate, n-hexyl methacrylate, and 2-ethylhexyl methacrylate. Can be mentioned.
【００１７】また、前記感熱接着剤層2 を構成する樹脂
組成物のうち、エポキシ基を含有するエポキシ基を有す
るオレフィン系重合体のシラングラフト変性体として
は、エポキシ基を含有するエポキシ基を有するオレフィ
ン系重合体中に、グラフト化された状態のシラン化合物
があれば良く、該エポキシ基を含有するエポキシ基を有
するオレフィン系重合体としては、エチレン−グリシジ
ルアクリレート共重合体，エチレン−グリシジルメタク
リレート共重合体，エチレン−酢酸ビニル−グリシジル
アクリレート共重合体，エチレン−酢酸ビニル−グリシ
ジルメタクリレート共重合体，エチレン−アクリル酸エ
チル−グリシジルメタクリレート共重合体，エチレン−
アクリル酸ｎ−ブチル−グリシジルメタクリレート共重
合体などを挙げることができる。In the resin composition constituting the heat-sensitive adhesive layer 2, the silane-grafted modified product of the olefin polymer having an epoxy group containing an epoxy group has an epoxy group containing an epoxy group. It is sufficient that the olefin compound has a grafted silane compound in the olefin polymer, and examples of the olefin polymer having an epoxy group containing the epoxy group include ethylene-glycidyl acrylate copolymer and ethylene-glycidyl methacrylate copolymer. Polymer, ethylene-vinyl acetate-glycidyl acrylate copolymer, ethylene-vinyl acetate-glycidyl methacrylate copolymer, ethylene-ethyl acrylate-glycidyl methacrylate copolymer, ethylene-
Examples thereof include acrylic acid n-butyl-glycidyl methacrylate copolymer.
【００１８】更に、前記シラン化合物としては、ビニル
トリメトキシシラン，ビニルトリエトキシシラン，ビニ
ルトリ（β−メトキシエトキシ）シラン，ビニルトリア
セトキシシラン等のビニルシラン類、アクリロキシプロ
ピルトリメトキシシラン，メタクリロキシプロピルトリ
メトキシシラン等のアクリル系シラン類などを挙げるこ
とができる。Further, as the silane compound, vinyl silanes such as vinyltrimethoxysilane, vinyltriethoxysilane, vinyltri (β-methoxyethoxy) silane, vinyltriacetoxysilane, acryloxypropyltrimethoxysilane and methacryloxypropyltrisilane are used. Examples thereof include acrylic silanes such as methoxysilane.
【００１９】また、本発明の感熱接着剤層2 を構成する
樹脂組成物は、上記重合体成分の他に、前記組成物に、
エチレン・（メタ）アクリル酸エステル共重合体及びエ
ポキシ基を含有しないエポキシ基を有するオレフィン系
重合体のシラングラフト変性体よりなる樹脂組成物を含
有させて形成されたものであっても良い。The resin composition constituting the heat-sensitive adhesive layer 2 of the present invention comprises the above-mentioned composition in addition to the above-mentioned polymer component.
It may be formed by containing a resin composition comprising an ethylene / (meth) acrylic acid ester copolymer and a silane graft modified product of an olefin polymer having an epoxy group and not having an epoxy group.
【００２０】更に、前記樹脂組成物の特性を損なわない
範囲内で、他の重合体成分や、酸化防止剤、可塑剤、粘
着付与剤、ワックス、白色等の着色顔料等を添加させた
ものであっても良い。Further, other polymer components, antioxidants, plasticizers, tackifiers, waxes, color pigments such as white, etc. may be added within a range that does not impair the characteristics of the resin composition. It may be.
【００２１】前記構成の感熱ラベルA を製造する際は、
前記透明なフィルム層3 と印刷層4とからなるラベル本
体1 に、感熱接着剤層2 を押出ラミネーションによって
積層させることにより、容易にコーティングできる。When manufacturing the heat-sensitive label A having the above structure,
The label body 1 composed of the transparent film layer 3 and the printing layer 4 can be easily coated by laminating the heat-sensitive adhesive layer 2 by extrusion lamination.
【００２２】次に、上記構成からなる感熱ラベルA を実
際に使用する際の使用例について、ガラス瓶B1の場合と
金属缶B2の場合を挙げて説明する。Next, examples of actual use of the heat-sensitive label A having the above structure will be described with reference to the case of the glass bottle B 1 and the case of the metal can B 2 .
【００２３】＜ガラス瓶B1の場合＞例えば、図２及び図
３で示すように、ガラス瓶B1の表面に貼着する場合は、
先ず、貼着位置を決定させるために、製造直後の熱い状
態の該ガラス瓶B1や前記樹脂組成物の融点以上、例えば
９０°Ｃ程度に加熱したガラス瓶B1の表面に本発明の感
熱ラベルA の感熱接着剤層2 を貼着圧４kg/cm2以上にて
貼着するか、或いは該感熱接着剤層2 を赤外線や熱風に
より、140 °Ｃ程度に昇温させて貼着する。<In the case of glass bottle B 1 > For example, as shown in FIGS. 2 and 3, in the case of sticking to the surface of the glass bottle B 1 ,
First, in order to determine the sticking position, higher than the melting point of the glass bottle B 1 and the resin composition of the hot state immediately after manufacturing, thermal label A of the present invention to glass bottles B 1 of the surface heated, for example, about 90 ° C The heat-sensitive adhesive layer 2 is attached at an application pressure of 4 kg / cm 2 or more, or the heat-sensitive adhesive layer 2 is attached by raising the temperature to about 140 ° C. with infrared rays or hot air.
【００２４】前記状態にて、容易に剥離可能な程度に接
着させておけば、該感熱ラベルA に皺や歪みが生じた場
合、そのラベルA は即剥離が可能となる。従って、容易
に前記不良のラベルを貼り換えることができ、ラベル付
きガラス瓶を常に良好なものとして提供できる。If the heat-sensitive label A is wrinkled or distorted, the label A can be immediately peeled off by adhering it in such a state that it can be easily peeled off. Therefore, the defective label can be easily replaced, and the labeled glass bottle can always be provided as a good one.
【００２５】次に、前記感熱ラベルA が一旦貼着された
ガラス瓶B を300 °Ｃ程度の 雰囲気中で約１分間処理
し、更に接着強度を強化させる。Next, the glass bottle B to which the heat-sensitive label A is once attached is treated in an atmosphere of about 300 ° C. for about 1 minute to further strengthen the adhesive strength.
【００２６】前記のように処理した感熱ラベルA が貼着
されたガラス瓶B1においては、そのままの状態で内容物
を充填後、低温加熱殺菌のためにパストライザーによる
６０〜９０°Ｃの温水シャワーリングを、たとえ長時間
施行したとしても全く剥離することがなかった。In the glass bottle B 1 to which the heat-sensitive label A treated as described above is attached, the contents are filled as it is, and then a hot water shower at 60 to 90 ° C. by a pasteurizer is used for low temperature heat sterilization. The ring did not peel at all, even after being applied for a long time.
【００２７】また、本発明の感熱ラベルA は、ラベル本
体1 が透明なフィルム層3 によって形成されているの
で、透明なラベルを透明なガラス瓶B1に貼着することと
なり、そのため、該ラベルA を透して内容物を見ること
が可能で、非常に透明感のあるラベル付ガラス瓶が得ら
れる。Further, in the heat-sensitive label A of the present invention, since the label body 1 is formed by the transparent film layer 3, the transparent label is stuck to the transparent glass bottle B 1 , and therefore the label A is The contents can be seen through the glass, and a very transparent glass bottle with a label can be obtained.
【００２８】尚、本発明の感熱ラベルA の印刷層4 を、
上述のようにラベル本体1 の裏面側にとして設けた場合
は、該印刷層4 が透視可能であるものであれば、前記透
明なフィルム層3 は半透明等のフィルムであっても良
い。The print layer 4 of the heat-sensitive label A of the present invention is
When provided on the back side of the label body 1 as described above, the transparent film layer 3 may be a translucent film as long as the printing layer 4 can be seen through.
【００２９】＜金属缶B2の場合＞図４及び図５で示すよ
うに、飲料用の金属缶B2の全周面を被覆する場合は、前
記透明なフィルム層3 として、熱収縮性フィルムが使用
でき、例えば縦一軸熱収縮性ＰＥＴフィルムを使用した
場合は、図４で示すように、該金属缶B2に巻装被覆させ
た後、加熱収縮することによって、前記感熱接着剤層2
を活性化と同時に熱収縮でき、該金属缶B2の表面の凹凸
形状に適合させて強固に密着させることができる。<Case of Metal Can B 2 > As shown in FIGS. 4 and 5, in the case of covering the entire peripheral surface of the metal can B 2 for beverage, the transparent film layer 3 is a heat-shrinkable film. When, for example, a longitudinal uniaxial heat-shrinkable PET film is used, the heat-sensitive adhesive layer 2 is formed by winding and covering the metal can B 2 and then heat-shrinking it as shown in FIG.
At the same time as the activation, heat contraction can be performed, and the metal can B 2 can be closely adhered by conforming to the uneven shape of the surface.
【００３０】この際、ラベルA の両端部5,5 において
は、図５で示すように、該感熱ラベルA の感熱接着剤層
2 がエチレン・（メタ）アクリル酸エステル共重合体及
びエポキシ基を含有するエポキシ基を有するオレフィン
系重合体のシラングラフト変性体よりなる樹脂組成物か
ら形成されてなるものであるので、金属缶B2の表面だけ
でなく、前記縦一軸熱収縮性ＰＥＴフィルムにも貼着可
能であり、非常に強固に貼着することができる。At this time, at both ends 5, 5 of the label A, as shown in FIG. 5, the heat-sensitive adhesive layer of the heat-sensitive label A is used.
Since 2 is formed from a resin composition comprising an ethylene / (meth) acrylic acid ester copolymer and a silane graft modified product of an epoxy group-containing olefin polymer having an epoxy group, a metal can B Not only the surface of No. 2 but also the longitudinal uniaxial heat-shrinkable PET film can be attached, and it can be attached very firmly.
【００３１】前記のように本発明の感熱ラベルA をシュ
リンクラベルとして金属缶B2等に巻装被覆させる場合
は、例えば、図６で示すように、該感熱ラベルA の収縮
方向を、金属缶B2の円周方向に適合させて巻付け、重ね
合せた両端部5,5 をヒートシールすることにより、前記
熱収縮性ＰＥＴフィルムと、感熱接着剤層2 の接着剤と
が接着し、次に、該感熱ラベルA を熱風等によって加熱
収縮して、該金属缶B2の表面に密着させる。When the heat-sensitive label A of the present invention is wound and covered as a shrink label on a metal can B 2 or the like as described above, for example, as shown in FIG. The heat-shrinkable PET film and the adhesive of the heat-sensitive adhesive layer 2 are adhered to each other by heat-sealing the both ends 5, 5 which are wound in conformity with the circumferential direction of B 2 and overlapped, Then, the heat-sensitive label A is heated and shrunk by hot air or the like to be brought into close contact with the surface of the metal can B 2 .
【００３２】この場合、前記感熱ラベルA の両端部5,5
が強固に接着しているため、熱収縮する際に該両端部5,
5 が捲り上がって仕上がりが悪くなることはない。In this case, both ends 5, 5 of the heat-sensitive label A are
Since they are firmly adhered, both ends 5,
No rolling up of 5 and poor finish.
【００３３】更に、前記金属缶B2を１７０〜２００°Ｃ
の雰囲気中で約３０秒間加熱することで、前記感熱ラベ
ルA は該金属缶B2の表面に強固に貼着させることができ
る。Further, the metal can B 2 is heated to 170 to 200 ° C.
The heat-sensitive label A can be firmly adhered to the surface of the metal can B 2 by heating in the atmosphere for about 30 seconds.
【００３４】尚、本発明の感熱ラベルA を上述のように
シュリンクラベルとして使用するのは前記飲料用の金属
缶B2に限定されず、例えば、乾電池等の表面が金属の筒
状のものであれば前記同様に実施可能である。It should be noted that the use of the heat-sensitive label A of the present invention as a shrink label as described above is not limited to the metal can B 2 for beverages described above, and may be, for example, a cylindrical battery having a metal surface. If there is, it can be carried out as described above.
【００３５】また、前記実施例では、熱収縮性フィルム
として、縦一軸熱収縮性ＰＥＴフィルムを用いた例を挙
げたが、該フィルムに限定されず、例えば、その他のポ
リエステルや、ポリエポキシ基を有するオレフィン等の
熱収縮性フィルムであっても良い。Further, in the above-mentioned embodiment, an example in which a longitudinally uniaxial heat-shrinkable PET film is used as the heat-shrinkable film is given, but the heat-shrinkable film is not limited to the film, and for example, other polyester or polyepoxy group It may be a heat-shrinkable film such as an olefin.
【００３６】更に、本発明の感熱ラベルA におけるラベ
ル本体1 の基材としては、上記熱収縮性フィルムだけで
なく、非収縮性のフィルムや、耐熱性を有する不透明な
紙や合成紙等の使用も可能であり、要は、感熱ラベルの
基材として、前記印刷層4 及び感熱接着剤層2 との密着
性が良いものであれば良い。Further, as the base material of the label body 1 in the heat-sensitive label A of the present invention, not only the heat-shrinkable film but also non-shrinkable film, heat-resistant opaque paper, synthetic paper, etc. are used. It is also possible to use any material as long as it has good adhesion to the printed layer 4 and the heat-sensitive adhesive layer 2 as the base material of the heat-sensitive label.
【００３７】特にＰＥＴ等のポリエステル樹脂よりなる
フィルムを使用した場合は、非常に高度の耐熱性を有
し、本発明の感熱接着剤層2 との接着性にも非常に優れ
ていて好ましいものとなり得る。In particular, when a film made of a polyester resin such as PET is used, it has a very high degree of heat resistance and has excellent adhesiveness with the heat-sensitive adhesive layer 2 of the present invention, which is preferable. obtain.
【００３８】また、前記感熱接着剤層2 にコロナ放電処
理を施すと、被着体への初期接着力が向上し、非常に好
ましい。Further, it is very preferable to subject the heat-sensitive adhesive layer 2 to corona discharge treatment because the initial adhesive strength to the adherend is improved.
【００３９】[0039]
【発明の効果】本発明の感熱ラベルは、感熱接着剤層と
してエチレン・（メタ）アクリル酸エステル共重合体及
びエポキシ基を有するオレフィン系重合体のシラングラ
フト変性体よりなる樹脂組成物を使用しているので、プ
レラベル、即ち充填前に被着体へ貼着し、その後、低温
加熱殺菌や水処理が施される水濡れが前提条件となるガ
ラス瓶等の被着体へ貼着されるラベルとして使用する場
合であっても、剥離することなく、非常に強固な貼着力
を保持することが可能となる。The heat-sensitive label of the present invention uses, as a heat-sensitive adhesive layer, a resin composition comprising an ethylene / (meth) acrylic acid ester copolymer and a silane graft modified product of an olefin polymer having an epoxy group. Therefore, as a pre-label, that is, a label that is attached to an adherend before filling, and then attached to an adherend such as a glass bottle whose precondition is water wetting that is subjected to low-temperature heat sterilization and water treatment. Even when used, it is possible to maintain a very strong adhesive force without peeling.
【００４０】また、本発明の感熱ラベルをシュリンクラ
ベルとして金属缶等の被着体の周面に巻装貼着しようと
した場合であっても、該被着体の周面には勿論、該ラベ
ルの端部同士、即ち、ラベルのラベル本体とエチレン・
（メタ）アクリル酸エステル共重合体及びエポキシ基を
有するオレフィン系重合体のシラングラフト変性体より
なる樹脂組成物から形成されてなる感熱接着剤層との重
合部分においても貼着が可能となり、何れにおいても強
固な貼着力を有する感熱ラベルとなり得る。Further, even when the heat-sensitive label of the present invention is used as a shrink label on a peripheral surface of an adherend such as a metal can by winding and adhering, the peripheral surface of the adherend is, of course, Label edges, that is, the label body and ethylene
The (meth) acrylic acid ester copolymer and the olefin-based polymer having an epoxy group can be attached even in a polymerized portion with a heat-sensitive adhesive layer formed from a resin composition comprising a silane-grafted modified product of the olefin polymer. In this case, the heat-sensitive label can have a strong sticking force.
【００４１】更に、本発明の感熱ラベルのラベル本体と
して、表面側が透明なフィルム層から形成され、裏面側
に印刷層が設けられたものにおいては、該フィルム層に
て印刷層の保護効果を有するラベルとして優れたものに
なり得ると共に、該透明なフィルム層と印刷層とからな
るラベル本体に感熱接着剤層を設ける際は、押出ラミネ
ーションによって容易にコーティングできるので、トー
タルコストも抑制することができる。Further, in the label body of the heat-sensitive label of the present invention, in which the front surface side is formed of a transparent film layer and the back surface side is provided with a printing layer, the film layer has a protective effect of the printing layer. It can be excellent as a label, and when a heat-sensitive adhesive layer is provided on the label body composed of the transparent film layer and the printing layer, it can be easily coated by extrusion lamination, so that the total cost can be suppressed. .
【図１】本発明の感熱ラベルの実施例を示す一部断面
図。FIG. 1 is a partial sectional view showing an embodiment of a heat-sensitive label of the present invention.
【図２】同、使用態様図。FIG. 2 is a view showing a usage state of the same.
【図３】図２のＩ−Ｉ線断面図。FIG. 3 is a sectional view taken along line I-I of FIG.
【図４】他の使用態様断面図。FIG. 4 is a sectional view of another usage mode.
【図５】図４のＩＩ−ＩＩ線断面図。5 is a sectional view taken along line II-II of FIG.
【図６】本発明の感熱ラベルの被着状態説明図。FIG. 6 is an explanatory view of an attached state of the heat-sensitive label of the present invention.
１ ラベル本体 ２ 感熱接着剤層 ３ 透明フィルム層 ４ 印刷層 ５ ラベル本体の端部 Ａ 感熱ラベル B1 ガラス瓶 B2 金属缶1 label body 2 heat-sensitive adhesive layer 3 transparent film layer 4 printing layer 5 edge of label body A heat-sensitive label B 1 glass bottle B 2 metal can
Claims (2)
裏面に設けられた感熱接着剤層(2) とからなる感熱ラベ
ルにおいて、前記ラベル本体(1) には印刷層(4) が設け
られてなると共に、前記感熱接着剤層(2) が、エチレン
・（メタ）アクリル酸エステル共重合体及びエポキシ基
を有するオレフィン系重合体のシラングラフト変性体よ
りなる樹脂組成物から形成されていることを特徴とする
感熱ラベル。1. A heat-sensitive label comprising a label body (1) and a heat-sensitive adhesive layer (2) provided on the back surface of the label body (1), wherein the label body (1) has a printing layer (4). ) Is provided, and the heat-sensitive adhesive layer (2) is formed from a resin composition comprising an ethylene / (meth) acrylic acid ester copolymer and a silane graft modified product of an olefinic polymer having an epoxy group. A heat-sensitive label that is characterized by being.
フィルム層(3) から形成され、裏面側に印刷層(4) が設
けられてなる請求項１記載の感熱ラベル。2. The heat-sensitive label according to claim 1, wherein the label body (1) is formed of a transparent film layer (3) on the front surface side and a printing layer (4) on the back surface side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17677894A JPH0844295A (en) | 1994-07-28 | 1994-07-28 | Thermosensitive label |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17677894A JPH0844295A (en) | 1994-07-28 | 1994-07-28 | Thermosensitive label |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0844295A true JPH0844295A (en) | 1996-02-16 |
Family
ID=16019679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17677894A Pending JPH0844295A (en) | 1994-07-28 | 1994-07-28 | Thermosensitive label |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0844295A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001034173A (en) * | 1999-07-19 | 2001-02-09 | Fuji Seal Inc | Article with thermosensitive label |
| WO2001016924A1 (en) * | 1999-09-01 | 2001-03-08 | Fuji Seal Inc. | Metal can label and metal can having metal can label applied thereto |
| JP2002145226A (en) * | 2000-11-06 | 2002-05-22 | Fuji Seal Inc | Label for transferring foil and method of making the same |
| JP2003005649A (en) * | 2001-06-26 | 2003-01-08 | Toppan Label Co Ltd | Double-layer labels |
| JP2003058057A (en) * | 2001-08-17 | 2003-02-28 | Fuji Seal Inc | Label for manganese dry battery and method for manufacturing manganese dry battery |
| JP2007114366A (en) * | 2005-10-19 | 2007-05-10 | Riido:Kk | On-roof indication lamp of taxi |
-
1994
- 1994-07-28 JP JP17677894A patent/JPH0844295A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001034173A (en) * | 1999-07-19 | 2001-02-09 | Fuji Seal Inc | Article with thermosensitive label |
| WO2001016924A1 (en) * | 1999-09-01 | 2001-03-08 | Fuji Seal Inc. | Metal can label and metal can having metal can label applied thereto |
| US6553700B1 (en) | 1999-09-01 | 2003-04-29 | Fuji Seal Inc. | Metal can label and metal can having metal can label applied thereto |
| JP2002145226A (en) * | 2000-11-06 | 2002-05-22 | Fuji Seal Inc | Label for transferring foil and method of making the same |
| JP2003005649A (en) * | 2001-06-26 | 2003-01-08 | Toppan Label Co Ltd | Double-layer labels |
| JP2003058057A (en) * | 2001-08-17 | 2003-02-28 | Fuji Seal Inc | Label for manganese dry battery and method for manufacturing manganese dry battery |
| JP2007114366A (en) * | 2005-10-19 | 2007-05-10 | Riido:Kk | On-roof indication lamp of taxi |
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