JP2006053455A - Heat sensitive label resistive to curling up - Google Patents

Heat sensitive label resistive to curling up Download PDF

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JP2006053455A
JP2006053455A JP2004236385A JP2004236385A JP2006053455A JP 2006053455 A JP2006053455 A JP 2006053455A JP 2004236385 A JP2004236385 A JP 2004236385A JP 2004236385 A JP2004236385 A JP 2004236385A JP 2006053455 A JP2006053455 A JP 2006053455A
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resin layer
label
thermoplastic resin
layer
paper
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JP4696494B2 (en
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Minoru Nagae
実 永江
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Toppan Inc
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Toppan Printing Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat sensitive label which is used to stick on PET bottles and glass bottles and in particular has the rear surface partly coated with adhesive resin layer strips. <P>SOLUTION: The heat sensitive label is made by coating a thermoplastic resin layer (adhesive resin layer) on its rear surface. This thermoplastic resin layer (15) is not applied to all over the rear surface but applied by forming a laminated line pattern, dot pattern, or spiral pattern on the whole surface. Accordingly, the label does not curl even when heated to stick on a PET or glass bottle. Thus, the labels are stuck anywhere correctly without slanting even when stuck to PET bottles or glass bottles by using a labeler. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、ガラス瓶やPETボトル等に貼着するラベルに関し、特に、ラベル裏面の貼着用樹脂層の塗工を部分的に行うことによりカール防止策が施された感熱ラベルに関するものである。   The present invention relates to a label attached to a glass bottle, a PET bottle, or the like, and more particularly to a heat-sensitive label in which a curl prevention measure is applied by partially applying a resin layer to be attached to the back side of the label.

従来、一般的な感熱ラベルは、ラベル裏面に「熱可塑性樹脂+可塑剤」をディスバージョン化したものを塗工し、低温で乾燥させると共に、固形分以外の溶剤等を揮散させてラベルの接着面を構成したものである。このラベルはラベラーで加熱し、接着面にタックを発現させるタイプである。   Conventional heat-sensitive labels have been coated with a version of "thermoplastic resin + plasticizer" on the back side of the label, dried at low temperatures, and stripped of solvents other than solids to adhere the label. It constitutes a surface. This label is of a type that is heated with a labeler to cause tackiness on the adhesive surface.

他のタイプの感熱ラベルとしては、全面に熱可塑性樹脂を「エキストルーダー塗工」、または「フィルム化して貼り合わせる」、またはホットメルト等をコーティングした後、ラベラーで加熱し、この接着面を可塑状態にしてラベリングするもの等がある。   For other types of heat-sensitive labels, a thermoplastic resin is applied to the entire surface by “extruder coating”, “filming and bonding”, or hot melt, etc., and then heated with a labeler to plasticize the adhesive surface. There are things that are labeled in a state.

しかしながら、上記に述べた各々の感熱ラベルにおいてはそれぞれ問題点が見られる。例えば、熱によるカールの問題は、塗工膜厚が薄いためにカールの発生はしないが、低温で熱可塑性樹脂と可塑剤が溶けるので、夏場の輸送などで高温下に置かれるとタック性が発現して、ブロッキング等の問題が発生する。   However, each of the thermal labels described above has its own problems. For example, the problem of curling due to heat does not generate curl because the coating film is thin, but the thermoplastic resin and plasticizer melt at low temperatures. It develops and causes problems such as blocking.

また、図5に示すように、ラベル(20)は上層から紙やフィルム等の基材(20)、紙剥け防止層(22)、ラベル裏面に接着樹脂層(25)の一般的な構成であるが、裏面全面に樹脂をコーティングするため、ラベラーでの加熱により基材層と接着樹脂層(25)との収縮の違いからカールが発生するため、容器に正しく貼ることができなかったり、シワや位置ズレが起こり易くなる。   Further, as shown in FIG. 5, the label (20) has a general configuration of a base material (20) such as paper or film from the upper layer, a paper peeling prevention layer (22), and an adhesive resin layer (25) on the back of the label. However, because the resin is coated on the entire back surface, curling occurs due to the difference in shrinkage between the base material layer and the adhesive resin layer (25) due to heating with a labeler, and it cannot be applied correctly to the container. Or misalignment is likely to occur.

そこで本発明は、上記の問題を解決するためになされたもので、ガラス瓶やPETボトル等に貼着する感熱ラベルであり、特に、ラベル裏面の貼着用の接着樹脂層の塗工を部分的に行いカールを防止する感熱ラベルを提供するものである。   Therefore, the present invention has been made to solve the above problems, and is a heat-sensitive label that is attached to a glass bottle, a PET bottle, or the like. In particular, the application of the adhesive resin layer to be attached to the back of the label is partially performed. It provides a thermal label to prevent curling.

本発明における請求項1は、
上層に紙や樹脂フィルムなどからなる基材(11)と、中間層に樹脂フィルム等の紙剥け防止層(12)と、該紙剥け防止層の裏面に熱可塑性樹脂層(15)を設けた感熱ラベル(10)であって、前記熱可塑性樹脂層を、部分的、かつ任意のパターン形状に塗工したことを特徴とするカール防止策が施された感熱ラベルである。
Claim 1 in the present invention is
A base material (11) made of paper or a resin film as an upper layer, a paper peeling prevention layer (12) such as a resin film as an intermediate layer, and a thermoplastic resin layer (15) provided on the back surface of the paper peeling prevention layer. It is a heat sensitive label (10), Comprising: The said thermoplastic resin layer is a heat sensitive label with which the anti-curl measure was applied characterized by having applied the partial and arbitrary pattern shape.

請求項2は、請求項1に記載のカール防止策が施された感熱ラベルにおいて、
前記熱可塑性樹脂層(15)が、流れ方向にパターンとして線ラミ塗工したことを特徴とするカール防止策が施された感熱ラベルである。
Claim 2 is a thermal label to which the curl prevention measure according to claim 1 is applied.
The thermoplastic label (15) is a heat-sensitive label on which a curl prevention measure is applied, characterized in that a line lami coating is applied as a pattern in the flow direction.

請求項3は、請求項1に記載のカール防止策が施された感熱ラベルにおいて、
前記熱可塑性樹脂層(15)が、流れ方向にパターンとしてドット塗工したことを特徴とするカール防止策が施された感熱ラベルである。
Claim 3 is a heat-sensitive label to which the curl prevention measure according to claim 1 is applied.
The thermoplastic label (15) is a heat-sensitive label on which a curl prevention measure is applied, characterized in that dots are applied as a pattern in the flow direction.

請求項4は、請求項1に記載のカール防止策が施された感熱ラベルにおいて、
前記熱可塑性樹脂層(15)が、流れ方向にパターンとしてスパイラル塗工したことを特徴とするカール防止策が施された感熱ラベルである。
Claim 4 is the heat-sensitive label to which the curl prevention measure according to claim 1 is applied,
The thermosensitive label is provided with a curl prevention measure, wherein the thermoplastic resin layer (15) is spirally coated as a pattern in the flow direction.

本発明は、ラベルの裏面に熱可塑性の樹脂層(接着樹脂層)を塗工した感熱ラベルにおいて、この熱可塑性樹脂層をラベル裏面側に全面に樹脂コートするのではなく、全面にパターン形状として線ラミ塗工、あるいはドット塗工、またはスパイラル塗工を施すことにより、ペットボトルやガラス瓶等に接着するためのラベル加熱においても、しわやカールすることがなく、従ってペツトボトルやガラス瓶などにラベラーで貼着する場合も、曲がることなく正確な位置に貼ることが可能となる等の優れた効果を奏する。   The present invention provides a thermosensitive label in which a thermoplastic resin layer (adhesive resin layer) is coated on the back side of the label. With label laminating, dot coating, or spiral coating, label heating to adhere to PET bottles and glass bottles will not cause wrinkles or curls, so label with PET bottles or glass bottles. In the case of sticking, excellent effects such as being able to stick at an accurate position without bending are obtained.

本発明の最良の形態を図に基づき詳細に説明する。図1は、本発明の一実施例における感熱ラベルの積層構成を示す説明図であり、図2は、感熱ラベルにおける熱可塑性樹脂層を線ラミ塗工をした説明図である。また、図3は、感熱ラベルにおける熱可塑性樹脂層をドット塗工をした説明図であり、また、図4は、感熱ラベルにおける熱可塑性樹脂層をスパイラル塗工をした説明図である。   The best mode of the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory view showing a laminated structure of a thermosensitive label in one embodiment of the present invention, and FIG. 2 is an explanatory diagram in which a thermoplastic resin layer in the thermosensitive label is coated with a line laminate. FIG. 3 is an explanatory diagram in which the thermoplastic resin layer in the thermal label is subjected to dot coating, and FIG. 4 is an explanatory diagram in which the thermoplastic resin layer in the thermal label is subjected to spiral coating.

図1に示すように、本発明の感熱ラベルは、上層に基材(11)と中間層に紙剥け防止層(12)と、この紙剥け防止層の裏面に熱可塑性樹脂層(接着樹脂層)(15)を設けたもので、この熱可塑性樹脂層(接着樹脂層)(15)を、全面塗工するのではなく、線ラミ塗工やドット塗工、或いはスパイラル塗工等のパターン形状で部分的に渡航することによりラベル加熱の熱にも熱可塑性樹脂層(接着樹脂層)の収縮が起こらずにラベルのカールを防止することができる。   As shown in FIG. 1, the thermosensitive label of the present invention comprises a base material (11) as an upper layer, a paper peeling prevention layer (12) as an intermediate layer, and a thermoplastic resin layer (adhesive resin layer) on the back surface of the paper peeling prevention layer. ) (15) is provided, and the thermoplastic resin layer (adhesive resin layer) (15) is not coated on the entire surface, but is formed into a pattern shape such as line lamination coating, dot coating, or spiral coating. In this case, it is possible to prevent curling of the label without causing shrinkage of the thermoplastic resin layer (adhesive resin layer) even in the heat of the label heating.

図に基づき詳細に説明すると、基材(11)は、紙またはフィルムからなり、これらの表面に印刷等により模様層を形成することができれば良く、また、ラベリングの際に必要な剛性、強度が得られるものであれば特に素材は限定するものではない。紙としては、片アート紙、両面アート紙、模造紙、晒クラフト、アルミ蒸着紙等を挙げることができ、樹脂フィルムとしては、ポリオレフィン、ポリエステル、ポリアミド、ポリイミド等で特に限定するものではないが、少なくとも表面に印刷加工が可能なもの、或いは印刷した物を貼り合わせることができるものが好ましい。その他としては、不織布なども使用可能なものとして挙げることができる。   If it demonstrates in detail based on a figure, a base material (11) will consist of paper or a film, and what is necessary is just to be able to form a pattern layer on these surfaces by printing etc. Moreover, rigidity and intensity | strength required in the case of labeling are sufficient. The material is not particularly limited as long as it is obtained. Examples of paper include one-sided art paper, double-sided art paper, imitation paper, bleached craft, aluminum vapor-deposited paper, etc., and the resin film is not particularly limited by polyolefin, polyester, polyamide, polyimide, etc. It is preferable that at least the surface can be printed or can be pasted with printed matter. Other examples include non-woven fabrics that can be used.

次に、紙剥け防止層(12)は、被着体との強度が強かったり、基材の破断強度が弱い場合に発生する剥離時のラベルの破れ、紙剥けを防止するためには必要である。また、特に限定はしないが、少なくとも、「紙剥け防止層引っ張り強度>基材層間強度」でなければならない。素材としては、延伸ポリプロピレン、ポリエステル、ポリアミド等の熱可塑性樹脂、フェノール樹脂、尿素樹脂等の熱硬化性樹脂等が望ましい。さらに、カール防止に対しては、熱収縮の小さいフィルムを用いることが望ましい。   Next, the paper peeling prevention layer (12) is necessary to prevent the tearing of the label and the paper peeling at the time of peeling, which occurs when the strength with the adherend is strong or the base material has a low breaking strength. is there. Further, although not particularly limited, at least “paper peeling prevention layer tensile strength> base material interlayer strength” must be satisfied. Desirable materials are thermoplastic resins such as stretched polypropylene, polyester, and polyamide, and thermosetting resins such as phenol resin and urea resin. Furthermore, it is desirable to use a film having a small heat shrinkage for preventing curling.

次に、熱可塑性樹脂層(接着樹脂層)(15)は、少なくとも被着体(ペットボトル、ガラス瓶等の容器)に接着または仮着可能である熱可塑性樹脂が良い。すなわち、容器に対して接着、仮着する樹脂で、ラベラーの熱で軟化すれば、特に限定するものではないが、例を挙げると、エチレンビニル共重合体、エチレンメタアクリル酸共重合体、アイオノマー、エチレンアクリル共重合体、スチレンブタジエン、ラバー等のゴム系樹脂等が挙げられる。   Next, the thermoplastic resin layer (adhesive resin layer) (15) is preferably a thermoplastic resin that can be bonded or temporarily attached to at least an adherend (a container such as a plastic bottle or a glass bottle). That is, it is a resin that adheres to and temporarily adheres to the container, and is not particularly limited as long as it is softened by the heat of the labeler. For example, an ethylene vinyl copolymer, an ethylene methacrylic acid copolymer, an ionomer And rubber resins such as ethylene acrylic copolymer, styrene butadiene, and rubber.

図2に基づき本発明の実施例1を説明する。片面アート紙79.1g/m2 の表面にグラビア印刷により適宜な絵柄層を設け、さらにその裏面にドライラミネートによりポリエチレンテレフタレート(PET)フィルム(東洋紡製、E5200)厚さ12μmを貼り合わせる。さらにそのPETフィルムの裏面側にエチレン酢酸ビニル共重合体(EVA)樹脂(酢酸ビニル含有量14%)(15)により線ラミパターンを施した。この線ラミの厚みは20μmで、幅2mm、間隔は2mmである。すなわち、用紙幅に対する塗工幅比率は50%となる加工を施した。 A first embodiment of the present invention will be described with reference to FIG. An appropriate pattern layer is provided on the surface of single-sided art paper 79.1 g / m 2 by gravure printing, and a polyethylene terephthalate (PET) film (E5200, manufactured by Toyobo Co., Ltd.) having a thickness of 12 μm is bonded to the back surface thereof by dry lamination. Further, the back side of the PET film was subjected to a line lamination pattern with an ethylene vinyl acetate copolymer (EVA) resin (vinyl acetate content 14%) (15). The thickness of the line laminate is 20 μm, the width is 2 mm, and the interval is 2 mm. That is, the coating width ratio with respect to the paper width was 50%.

図3に基づき本発明の実施例2を説明する。片面アート紙79.1g/m2 の表面にグラビア印刷により適宜な絵柄層を設け、さらにその裏面にドライラミネートによりポリエチレンテレフタレート(PET)フィルム(東洋紡製、E5200)厚さ12μmを貼り合わせる。さらにそのPETフィルムの裏面側にエチレン酢酸ビニル共重合体(EVA)樹脂(酢酸ビニル含有量14%)(15)によりドットパターン塗工を行った。ドットの大きさはφ2mm、厚み20μm、間隔は千鳥で用紙幅に対する塗工面積比率は50%となる加工を施した。 A second embodiment of the present invention will be described with reference to FIG. An appropriate pattern layer is provided on the surface of single-sided art paper 79.1 g / m 2 by gravure printing, and a polyethylene terephthalate (PET) film (E5200, manufactured by Toyobo Co., Ltd.) having a thickness of 12 μm is bonded to the back surface thereof by dry lamination. Further, dot pattern coating was performed on the back side of the PET film with an ethylene vinyl acetate copolymer (EVA) resin (vinyl acetate content 14%) (15). The dot size was φ2 mm, the thickness was 20 μm, the intervals were staggered, and the coating area ratio to the paper width was 50%.

図4に基づき本発明の実施例3を説明する。片面アート紙79.1g/m2 の表面にグラビア印刷により適宜な絵柄層を設け、さらにその裏面にドライラミネートによりポリエチレンテレフタレート(PET)フィルム(東洋紡製、E5200)厚さ12μmを貼り合わせる。さらにそのPETフィルムの裏面側にエチレン酢酸ビニル共重合体(EVA)樹脂(酢酸ビニル含有量14%)(15)によりスパイラルパターン塗工を行った。スパイラルの太さは幅2mm、厚みは20μm、用紙幅に対する塗工幅比率は50%となる加工を施した。 A third embodiment of the present invention will be described with reference to FIG. An appropriate pattern layer is provided on the surface of single-sided art paper 79.1 g / m 2 by gravure printing, and a polyethylene terephthalate (PET) film (E5200, manufactured by Toyobo Co., Ltd.) having a thickness of 12 μm is bonded to the back surface thereof by dry lamination. Further, spiral pattern coating was performed on the back side of the PET film with an ethylene vinyl acetate copolymer (EVA) resin (vinyl acetate content 14%) (15). The thickness of the spiral was 2 mm, the thickness was 20 μm, and the coating width ratio to the paper width was 50%.

比較例1を説明する。   Comparative Example 1 will be described.

片面アート紙79.1g/m2 の表面にグラビア印刷により適宜な絵柄層を設け、さらにその裏面にドライラミネートによりポリエチレンテレフタレート(PET)フィルム(東洋紡製、E5200)厚さ12μmを貼り合わせる。さらにそのPETフィルムの裏面側にエチレン酢酸ビニル共重合体(EVA)樹脂(酢酸ビニル含有量14%)を20μmの厚みで全面押し出し加工を行った。 An appropriate pattern layer is provided on the surface of single-sided art paper 79.1 g / m 2 by gravure printing, and a polyethylene terephthalate (PET) film (E5200, manufactured by Toyobo Co., Ltd.) having a thickness of 12 μm is bonded to the back surface thereof by dry lamination. Further, the entire surface of the PET film was extruded with an ethylene vinyl acetate copolymer (EVA) resin (vinyl acetate content 14%) with a thickness of 20 μm.

比較例2を説明する。   Comparative example 2 will be described.

片面アート紙79.1g/m2 の表面にグラビア印刷により適宜な絵柄層を設け、さらにその裏面にドライラミネートによりポリエチレンテレフタレート(PET)フィルム(東洋紡製、E5200)厚さ12μmを貼り合わせる。さらにPETフィルム面にSBR樹脂とフタル酸エステルを可塑剤としたディレードタック剤を塗工量10g/m2 で塗工した。尚、塗工は実施例1と同様のパターンで塗工したものである。 An appropriate pattern layer is provided on the surface of single-sided art paper 79.1 g / m 2 by gravure printing, and a polyethylene terephthalate (PET) film (E5200, manufactured by Toyobo Co., Ltd.) having a thickness of 12 μm is bonded to the back surface thereof by dry lamination. Further, a delayed tack agent using SBR resin and phthalate ester as a plasticizer was applied to the PET film surface at a coating amount of 10 g / m 2 . The coating was performed in the same pattern as in Example 1.

<テスト>
上記ラベラー(幅60mm×ピッチ50mm)で120℃に裏面を加熱し、PETボトルに貼り付けた。この結果を表1に示す。
<Test>
The back surface was heated to 120 ° C. with the labeler (width 60 mm × pitch 50 mm) and attached to a PET bottle. The results are shown in Table 1.

表1のテスト結果に示すように、比較例1、2に示した従来品においてはEVAの全面塗工の馬蹄には凸カールが発生しラベラーのかけた際には貼りズレやシワの発生が見られ
る。またディレードタックの場合は塗工面積が50%であっても、ブロッキングが発生するので、これらの総合評価は不良である。
As shown in the test results of Table 1, in the conventional products shown in Comparative Examples 1 and 2, convex curls are generated on the horseshoe of the entire EVA coating, and when the labeler is applied, sticking displacement and wrinkles are generated. It can be seen. In the case of delayed tack, even if the coating area is 50%, blocking occurs, so that these comprehensive evaluations are poor.

Figure 2006053455
Figure 2006053455

本発明の一実施例における感熱ラベルの積層構成を示す説明図である。It is explanatory drawing which shows the laminated structure of the thermosensitive label in one Example of this invention. 上記感熱ラベルにおける熱可塑性樹脂層を線ラミパターンにより塗工をした説明図である。It is explanatory drawing which applied the thermoplastic resin layer in the said thermosensitive label by the line lami pattern. 上記感熱ラベルにおける熱可塑性樹脂層をドットパターンにより塗工をした説明図である。It is explanatory drawing which applied the thermoplastic resin layer in the said thermosensitive label with the dot pattern. 上記感熱ラベルにおける熱可塑性樹脂層をスパイラルパターンにより塗工をした説明図である。It is explanatory drawing which applied the thermoplastic resin layer in the said thermosensitive label by the spiral pattern. 従来におけるディレードタック剤による感熱ラベルの一例を示す説明図である。It is explanatory drawing which shows an example of the thermosensitive label by the conventional delayed tack agent.

符号の説明Explanation of symbols

10,20……感熱ラベル
11,21……基材
12,22……紙剥け防止層
15,25……熱可塑性樹脂層(接着樹脂層)
10, 20 ... Thermal label 11, 21 ... Base material 12, 22 ... Paper peel prevention layer 15, 25 ... Thermoplastic resin layer (adhesive resin layer)

Claims (4)

上層に紙や樹脂フィルムなどからなる基材(11)と、中間層に樹脂フィルム等の紙剥け防止層(12)と、該紙剥け防止層の裏面に熱可塑性樹脂層(15)を設けた感熱ラベル(10)であって、前記熱可塑性樹脂層を、部分的、かつ任意の形状に塗工したことを特徴とするカール防止策が施された感熱ラベル。   A base material (11) made of paper or a resin film as an upper layer, a paper peeling prevention layer (12) such as a resin film as an intermediate layer, and a thermoplastic resin layer (15) provided on the back surface of the paper peeling prevention layer. A thermal label (10), wherein the thermoplastic resin layer is partially and arbitrarily coated in an arbitrary shape, and is provided with a curl prevention measure. 前記熱可塑性樹脂層(15)が、流れ方向に線ラミ塗工したことを特徴とする請求項1に記載のカール防止策が施された感熱ラベル。   The thermal label according to claim 1, wherein the thermoplastic resin layer (15) is coated with a line laminate in the flow direction. 前記熱可塑性樹脂層(15)が、流れ方向にドット塗工したことを特徴とする請求項1に記載のカール防止策が施された感熱ラベル。   The thermal label according to claim 1, wherein the thermoplastic resin layer (15) is dot-coated in the flow direction. 前記熱可塑性樹脂層(15)が、流れ方向にスパイラル塗工したことを特徴とする請求項1に記載のカール防止策が施された感熱ラベル。   The thermal label according to claim 1, wherein the thermoplastic resin layer (15) is spirally coated in the flow direction.
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JP2007240724A (en) * 2006-03-07 2007-09-20 Fuji Seal International Inc Thermosensitive label
JP2015014630A (en) * 2013-07-03 2015-01-22 凸版印刷株式会社 Thermosensitive label
KR20160022321A (en) * 2016-02-03 2016-02-29 김현종 Repositionable linerless thermosensitive label
JP2018079647A (en) * 2016-11-18 2018-05-24 大日本印刷株式会社 Delivery slip
JP2018079648A (en) * 2016-11-18 2018-05-24 大日本印刷株式会社 Delivery slip

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JPH06259017A (en) * 1993-03-05 1994-09-16 Toppan Printing Co Ltd Tacky adhesive label
JP2001134188A (en) * 1999-11-08 2001-05-18 Toppan Printing Co Ltd Thermosensitive label
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Publication number Priority date Publication date Assignee Title
JP2007240724A (en) * 2006-03-07 2007-09-20 Fuji Seal International Inc Thermosensitive label
JP2015014630A (en) * 2013-07-03 2015-01-22 凸版印刷株式会社 Thermosensitive label
KR20160022321A (en) * 2016-02-03 2016-02-29 김현종 Repositionable linerless thermosensitive label
KR102479372B1 (en) * 2016-02-03 2022-12-19 김현종 Repositionable linerless thermosensitive label
KR20230007981A (en) * 2016-02-03 2023-01-13 김현종 Repositionable linerless thermosensitive label
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JP2018079647A (en) * 2016-11-18 2018-05-24 大日本印刷株式会社 Delivery slip
JP2018079648A (en) * 2016-11-18 2018-05-24 大日本印刷株式会社 Delivery slip

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