JPH1063189A - In-mold label - Google Patents
In-mold labelInfo
- Publication number
- JPH1063189A JPH1063189A JP24130896A JP24130896A JPH1063189A JP H1063189 A JPH1063189 A JP H1063189A JP 24130896 A JP24130896 A JP 24130896A JP 24130896 A JP24130896 A JP 24130896A JP H1063189 A JPH1063189 A JP H1063189A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- protective layer
- ink
- mold label
- coating
- 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
Landscapes
- Laminated Bodies (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、容器等の成形時に
金型内に挿入し射出成形と同時に取り付けるラベル（イ
ンモールドラベル）に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a label (in-mold label) which is inserted into a mold at the time of molding a container or the like and is attached simultaneously with injection molding.
【０００２】[0002]
【従来の技術】従来のインモールドラベルは次のような
ものであった。2. Description of the Related Art A conventional in-mold label is as follows.
【０００３】絵柄を裏刷りしたＯＰＰ（延伸ポリプロ
ピレン）フィルムの裏面にＣＰＰ（未延伸ポリプロピレ
ン）フィルムまたはＰＳ（ポリスチレン）フィルムをド
ライラミネート（ＤＬ）したもの（層構成：ＯＰＰ／印
刷／ＤＬ／ＣＰＰｏｒＰＳ）であって、ＯＰＰフィルム
に静電気防止剤を含浸させている。[0003] A CPP (unstretched polypropylene) film or a PS (polystyrene) film is dry-laminated (DL) on the back of an OPP (stretched polypropylene) film with a backprinted pattern (layer structure: OPP / printing / DL / CPorPS). And the OPP film is impregnated with an antistatic agent.
【０００４】絵柄を裏刷りしたＯＰＰ（延伸ポリプロ
ピレン）またはＣＰＰ（未延伸ポリプロピレン）フィル
ムの裏面にコーティングによりヒートシール（ＨＳ）層
を設けたもの（層構成：ＯＰＰｏｒＣＰＰ／印刷／Ｈ
Ｓ）であって、ＯＰＰまたはＣＰＰフィルムに静電気防
止剤を含浸させている。An OPP (stretched polypropylene) or CPP (unstretched polypropylene) film on which a picture is back-printed and provided with a heat seal (HS) layer by coating on the back surface (layer constitution: OPPorCPP / print / H)
S) wherein the OPP or CPP film is impregnated with an antistatic agent.
【０００５】ＯＰＰ（延伸ポリプロピレン）の表面に
絵柄を印刷し裏面にコーティングによりヒートシール層
（ＨＳ）を設けたもの（層構成：印刷／ＯＰＰ／Ｈ
Ｓ）。[0005] OPP (stretched polypropylene) with a pattern printed on the front surface and a heat seal layer (HS) provided by coating on the back surface (layer structure: printing / OPP / H)
S).
【０００６】[0006]
【発明が解決しようとする課題】上記のインモールド
ラベルは、２枚のフィルムをドライラミネートで貼り合
わせる時のラミネート条件によってはカールを生じるこ
とがあるため、製造が容易でなく、また、２枚のフィル
ムを用いるためコスト高となるという問題があった。The in-mold label described above is not easy to manufacture because curling may occur depending on laminating conditions when two films are laminated by dry lamination. However, there is a problem that the use of such a film increases the cost.
【０００７】また、上記のインモールドラベルは、印
刷層がヒートシール層に接するため、成形時の樹脂圧お
よび樹脂温度の条件によっては印刷インキに流れが生ず
るという問題があった。Further, in the above-mentioned in-mold label, since the printing layer is in contact with the heat sealing layer, there is a problem that the printing ink flows depending on the conditions of resin pressure and resin temperature during molding.
【０００８】また、上記のインモールドラベルは、印
刷層が最外面にあるため、成形時若しくは使用時に絵柄
が取られ易いという問題があった。Further, in the above-mentioned in-mold label, there is a problem that a pattern is easily removed at the time of molding or use since the printed layer is on the outermost surface.
【０００９】したがって、コスト高にならず、成形時に
印刷インキに流れが生じず、また、成形時若しくは使用
時に絵柄が取られることのないインモールドラベルを提
供することが課題である。It is therefore an object of the present invention to provide an in-mold label which does not increase the cost, does not cause a flow of the printing ink at the time of molding, and does not remove a pattern at the time of molding or use.
【００１０】[0010]
【課題を解決するための手段】本発明は、基材の裏面側
に熱可塑性樹脂層を設けるとともに、ウレタン系インキ
等による印刷層を基材の表面側に設け、印刷層の上に保
護層を、それも２液硬化型インキからなる保護層を設
け、保護層（２液硬化型インキ）／印刷層／基材／熱可
塑性樹脂層の層構成を有するインモールドラベルとする
ことによって上記課題を解決したものである。このイン
モールドラベルは、印刷層が基材の表面側にあって熱可
塑性樹脂層に直接接しないため、成形時の樹脂圧や樹脂
温度で印刷インキが流れることがない。また、このイン
モールドラベルは、印刷層が保護層によって覆われるた
め、成形時若しくは使用時に絵柄が取られるのが防止さ
れる。そして、保護層は２液硬化型インキからなるもの
で、耐熱性に優れているため、保護層自体が金型に取ら
れることもない。また、２液硬化型インキからなる保護
層は耐摩耗性に優れているため、長期に亙って印刷層の
絵柄が保護される。また、このインモールドラベルは、
基材以外にフィルムを用いないためコストを低く抑えら
れる。According to the present invention, a thermoplastic resin layer is provided on the back side of a substrate, a printing layer made of urethane ink or the like is provided on the front side of the substrate, and a protective layer is provided on the printing layer. By providing a protective layer made of a two-component curable ink, and forming an in-mold label having a layer structure of a protective layer (two-component curable ink) / printing layer / substrate / thermoplastic resin layer. Is solved. In the in-mold label, since the printing layer is on the surface side of the base material and does not directly contact the thermoplastic resin layer, the printing ink does not flow due to the resin pressure or the resin temperature during molding. In addition, since the printed layer of the in-mold label is covered with the protective layer, the pattern is prevented from being removed during molding or use. The protective layer is made of a two-component curable ink and has excellent heat resistance, so that the protective layer itself is not taken into a mold. Further, since the protective layer made of the two-component curable ink has excellent abrasion resistance, the pattern of the printed layer is protected for a long period of time. Also, this in-mold label
Since no film is used other than the base material, the cost can be kept low.
【００１１】また、アクリル系の２液硬化型インクは光
沢に優れているが、反面、インクが硬くなるため、硬化
時のインキ収縮によりカールが発生する。そのため、保
護層を構成する２液硬化型インキには可塑剤を添加する
のがよく、そうすることにより硬化時のインキ収縮によ
るカールを防止できる。An acrylic two-component curable ink is excellent in gloss, but on the other hand, the ink is hardened, and curls due to shrinkage of the ink during curing. For this reason, it is preferable to add a plasticizer to the two-component curable ink constituting the protective layer, whereby curling due to ink shrinkage during curing can be prevented.
【００１２】また、成形時にインモールドラベルを自動
供給する際に静電気によりラベル同士が密着し２枚出し
となるのを防止するには、保護層の上に静電気防止剤層
を設けるのがよい。静電気防止剤層は例えばアニオン系
界面活性剤をコーティングしたものであってよい。その
際、保護層のインキが完全に硬化していない状態で静電
気防止剤をコーティングすると、保護層内に静電気防止
剤が沈んでしまって静電気防止効果が出なくなるため、
保護層のインキが完全に硬化してからコーティングする
必要がある。In order to prevent two labels from sticking together due to static electricity when automatically supplying an in-mold label during molding, it is preferable to provide an antistatic agent layer on the protective layer. The antistatic layer may be, for example, a layer coated with an anionic surfactant. At this time, if the antistatic agent is coated in a state where the ink of the protective layer is not completely cured, the antistatic agent sinks in the protective layer and the antistatic effect is not obtained,
It is necessary to coat after the ink of the protective layer is completely cured.
【００１３】また、熱可塑性樹脂層はＥＶＡ（エチレン
−酢酸ビニル共重合体）系樹脂のエマルジョンをコーテ
ィングしたものとするのがよく、その場合、射出樹脂と
して通常使用されるＰＰ（ポリプロピレン）あるいはＨ
ＩＰＳ（耐衝撃性ポリスチレン）のいずれの樹脂による
射出成形にも適用できる。The thermoplastic resin layer is preferably coated with an emulsion of an EVA (ethylene-vinyl acetate copolymer) resin. In this case, PP (polypropylene) or H which is usually used as an injection resin is used.
The present invention can be applied to injection molding using any resin of IPS (high impact polystyrene).
【００１４】[0014]
【発明の実施の形態】図１は本発明によるインモールド
ラベル１の層構成を示している。このインモールドラベ
ル１は、ＯＰＰ（延伸ポリプロピレン）フィルム，ＰＥ
Ｔ（ポリエステル）フィルム，紙，合成紙等を基材２と
し、その基材２の裏面にＥＶＡ（エチレン−酢酸ビニル
共重合体）系のエマルジョンのコーティングによる熱可
塑性樹脂層３を形成した後、基材２の表面側にグラビア
印刷によりウレタン系インキによる絵柄印刷層４を形成
し、その後、絵柄印刷層４の上にアクリルポリオール系
２液硬化型インキのコーティングによる保護層５を形成
し、さらに、保護層５のインキが完全に硬化した後、保
護層５の上にアニオン系界面活性剤のコーティングによ
る静電気防止剤層６を形成したものである。FIG. 1 shows a layer structure of an in-mold label 1 according to the present invention. This in-mold label 1 is made of an OPP (stretched polypropylene) film, PE
A T (polyester) film, paper, synthetic paper, or the like is used as a base material 2, and a thermoplastic resin layer 3 is formed on the back surface of the base material 2 by coating an EVA (ethylene-vinyl acetate copolymer) emulsion. A pattern printing layer 4 of a urethane-based ink is formed on the surface side of the base material 2 by gravure printing, and then a protective layer 5 of a coating of an acrylic polyol-based two-component curable ink is formed on the pattern printing layer 4, After the ink of the protective layer 5 is completely cured, an antistatic agent layer 6 is formed on the protective layer 5 by coating with an anionic surfactant.
【００１５】基材２は、ラベルの腰およびコストの面よ
り所定の厚みが必要であり、ＯＰＰの場合は４０〜８０
μ、ＰＥＴの場合は５０〜７５μが望ましい。また、紙
の場合は７０〜１１０ｇ／ｃｍ2のものが望ましい。The base material 2 must have a predetermined thickness in consideration of the rigidity of the label and cost, and in the case of OPP, the thickness is 40 to 80.
For μ and PET, 50 to 75 μ is desirable. In the case of paper, it is preferably 70 to 110 g / cm 2 .
【００１６】保護層５のアクリル系２液硬化型インキ
は、インキ自体が硬く、硬化時の熱によりインキが収縮
するため、カール防止のために可塑剤を２〜５％添加し
ている。The acrylic two-part curable ink of the protective layer 5 is hard, and the ink shrinks due to heat during curing. Therefore, a plasticizer is added in an amount of 2 to 5% to prevent curling.
【００１７】熱可塑性樹脂層３は、ラベルを自動供給す
る時の滑り性を良くするため、必要に応じてＰＥ（ポリ
エチレン）ワックスを１０〜２０％程度添加することに
より、外面（ラベル裏面）に微細な凹凸を設ける。The thermoplastic resin layer 3 is added to the outer surface (label back surface) by adding about 10 to 20% of PE (polyethylene) wax as needed in order to improve the slipperiness when automatically supplying the label. Fine irregularities are provided.
【００１８】[0018]
【発明の効果】本発明によれば、コスト高を招くことな
く、成形時のインモールドラベルのインキ流れを防止
し、かつ、成形時若しくは使用時に印刷層の絵柄が取ら
れるのを防止することができる。According to the present invention, it is possible to prevent the ink flow of the in-mold label at the time of molding and prevent the pattern of the printed layer from being removed at the time of molding or use, without increasing the cost. Can be.
【００１９】また、保護層の２液硬化型インキに可塑剤
を添加することにより硬化時のカールを防止できる。Further, curling during curing can be prevented by adding a plasticizer to the two-part curable ink of the protective layer.
【００２０】また、保護層の上に静電気防止剤層を設け
ることによりインモールドラベルを自動供給する際の２
枚出しを防止できる。Further, by providing an antistatic agent layer on the protective layer, it is possible to automatically supply an in-mold label.
It is possible to prevent sheet feeding.
【００２１】また、熱可塑性樹脂層にＥＶＡ系樹脂を使
用することにより、ＰＰあるいはＨＩＰＳのいずれの樹
脂による射出成形にも適用可能となる。Further, by using an EVA-based resin for the thermoplastic resin layer, it can be applied to injection molding using either PP or HIPS resin.
【図１】本発明によるインモールドラベルの層構成を示
す断面図である。FIG. 1 is a sectional view showing a layer structure of an in-mold label according to the present invention.
１ インモールドラベル ２ 基材 ３ 熱可塑性樹脂層 ４ 絵柄印刷層 ５ 保護層 ６ 静電気防止剤層 DESCRIPTION OF SYMBOLS 1 In-mold label 2 Base material 3 Thermoplastic resin layer 4 Picture printing layer 5 Protective layer 6 Antistatic agent layer
Claims (4)
るとともに、表面に印刷層が形成され、前記印刷層の上
に２液硬化型インキからなる保護層が形成されたことを
特徴とするインモールドラベル。1. A thermoplastic resin layer is formed on a back surface of a base material, a printing layer is formed on the front surface, and a protective layer made of a two-component curable ink is formed on the printing layer. In-mold label.
塑剤が添加されている請求項１記載のインモールドラベ
ル。2. The in-mold label according to claim 1, wherein a plasticizer is added to the two-component curable ink constituting the protective layer.
ている請求項１または２記載のインモールドラベル。3. The in-mold label according to claim 1, wherein an antistatic agent layer is formed on the protective layer.
共重合体系樹脂により構成されている請求項１，２また
は３記載のインモールドラベル。4. The in-mold label according to claim 1, wherein the thermoplastic resin layer is made of an ethylene-vinyl acetate copolymer resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24130896A JP3913293B2 (en) | 1996-08-23 | 1996-08-23 | In-mold label |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24130896A JP3913293B2 (en) | 1996-08-23 | 1996-08-23 | In-mold label |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1063189A true JPH1063189A (en) | 1998-03-06 |
| JP3913293B2 JP3913293B2 (en) | 2007-05-09 |
Family
ID=17072361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24130896A Expired - Fee Related JP3913293B2 (en) | 1996-08-23 | 1996-08-23 | In-mold label |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3913293B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011115958A (en) * | 2009-11-30 | 2011-06-16 | Yoshino Kogyosho Co Ltd | Synthetic resin product with in-mold label |
| JP2011212904A (en) * | 2010-03-31 | 2011-10-27 | Yoshino Kogyosho Co Ltd | Decorative synthetic resin molding |
| WO2014087795A1 (en) * | 2012-12-05 | 2014-06-12 | 日本写真印刷株式会社 | Readily formable decorative paper and process for producing molded fibrous article through simultaneous molding/decoration |
-
1996
- 1996-08-23 JP JP24130896A patent/JP3913293B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011115958A (en) * | 2009-11-30 | 2011-06-16 | Yoshino Kogyosho Co Ltd | Synthetic resin product with in-mold label |
| JP2011212904A (en) * | 2010-03-31 | 2011-10-27 | Yoshino Kogyosho Co Ltd | Decorative synthetic resin molding |
| WO2014087795A1 (en) * | 2012-12-05 | 2014-06-12 | 日本写真印刷株式会社 | Readily formable decorative paper and process for producing molded fibrous article through simultaneous molding/decoration |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3913293B2 (en) | 2007-05-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2762751B2 (en) | Image protection film | |
| JPH02244189A (en) | Label for in-mold molding | |
| JPS62238791A (en) | Transfer printing sheet and decorating method therefor | |
| JP5974614B2 (en) | Transfer foil, decorative molded product manufacturing method, and decorative molded product | |
| JPH06198831A (en) | Decorative sheet | |
| JPS63128987A (en) | Base sheet in dry transfer material | |
| JP2002522258A (en) | Foil | |
| JPH1063189A (en) | In-mold label | |
| JP2011005454A (en) | Gravure plate and transferring foil using the same | |
| JPS6243880B2 (en) | ||
| JPH02261614A (en) | In-mold transfer foil | |
| JPH01141014A (en) | Preparation of in-mold molded item having hairline surface | |
| KR102203464B1 (en) | Container having inmold label for easy recycle and recycling method for the same | |
| CN107214911A (en) | The injection molding method of in-mold decoration and product of a kind of flexible plastic product | |
| JPH08146879A (en) | Label for in-mold molding | |
| JP2011095517A (en) | In-mold label | |
| JP2008249927A (en) | In-mold label and in-mold molded product using the same | |
| US6149753A (en) | Filmless sticker and the preparation thereof | |
| JP7368164B2 (en) | packaging base material | |
| JPH01249399A (en) | Uneven transfer material | |
| JP4170440B2 (en) | Labeled container | |
| JP4826024B2 (en) | Card with a writable writing area | |
| JP2560573B2 (en) | In-mold label | |
| JP2002140005A (en) | Roll type label and method of manufacturing the same and plastic product affixed with tack label | |
| JP2002293094A (en) | Transfer sheet and manufacturing method for laminate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20050126 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060124 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060327 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060418 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060616 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20070116 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20070131 |
|
| R150 | Certificate of patent (=grant) or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110209 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110209 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120209 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130209 Year of fee payment: 6 |
|
| LAPS | Cancellation because of no payment of annual fees |