JP2006272736A - Mount paper for display and manufacturing method for the same - Google Patents

Mount paper for display and manufacturing method for the same Download PDF

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JP2006272736A
JP2006272736A JP2005094846A JP2005094846A JP2006272736A JP 2006272736 A JP2006272736 A JP 2006272736A JP 2005094846 A JP2005094846 A JP 2005094846A JP 2005094846 A JP2005094846 A JP 2005094846A JP 2006272736 A JP2006272736 A JP 2006272736A
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paper
adhesive layer
resin foam
polystyrene resin
layer
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JP4593337B2 (en
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Kiyoshi Yoshioka
清 吉岡
Norihisa Ohira
則久 大平
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Sekisui Kasei Co Ltd
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Sekisui Plastics Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a mount paper for display capable of stably producing the same that does not allow occurrence of the tunnel phenomenon and has a predetermined peel strength good in workability, and to provide the mount paper for display. <P>SOLUTION: The mount paper for display is obtained by laminating the paper 203 side of a tack paper 500, which is provided with a release paper 300 and an adhesive layer 200 having an adhesive agent layer 204 and papers 202, 203, on one surface of a polystyrene resin foamed body 100 with an aqueous adhesive. Using the tack paper 500 having a water-impermeable layer 201 between the papers 202 and 203, the paper 203 side thereof is laminated on one surface of the polystyrene resin foamed body 100 with the aqueous adhesive. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、展示用台紙の製造方法及び展示用台紙に関し、さらに詳細には、主として写真やポスターなどの印刷物を貼って展示するための展示用台紙の製造方法及び展示用台紙に関するものである   The present invention relates to a method for manufacturing a display board and a display board, and more particularly to a method for manufacturing a display board and a display board for displaying a printed material such as a photograph or a poster.

従来、ポスターなど印刷物等の被展示物を貼付する展示用台紙には、発泡質基板の表面に粘着剤層を介して剥離紙が積層されたものがある(特許文献1)。この展示用台紙は、剥離紙を剥離して塗布されている粘着剤層に前記被展示物を貼付して使用される。   2. Description of the Related Art Conventionally, there is a display board on which a display object such as a printed matter such as a poster is pasted, in which a release paper is laminated on the surface of a foamed substrate via an adhesive layer (Patent Document 1). This display board is used by sticking the article to be exhibited to an adhesive layer that is applied by peeling off a release paper.

特開2002−215072JP2002-215072

このような展示用台紙は、印刷物等の被展示物を貼付する前の保管中に剥離紙がトンネル状に浮き上がるいわゆるトンネル現象が発生する場合があった。剥離紙が浮きあがった状態で保管されたものは、印刷物等被展示物との接着強度が低下したり、印刷物等被展示物を貼った際にスジ状の模様となって見映えを損ねてしまうという問題があった。そこで、そのような浮き上がりが発生しないように、剥離紙と粘着剤層の剥離強度を強くするように調整されるが、剥離強度が強すぎると使用時に剥離紙を剥しにくく、作業性が低下するという問題があった。   In such a display board, a so-called tunnel phenomenon in which the release paper floats up in a tunnel shape may occur during storage before attaching an object to be displayed such as a printed matter. If the release paper is stored in a lifted state, the adhesive strength with the display object such as printed matter will decrease, or it will appear streak-like when the display object such as printed matter is pasted. There was a problem that. Therefore, it is adjusted to increase the peel strength between the release paper and the pressure-sensitive adhesive layer so that such lift does not occur. However, if the peel strength is too strong, it is difficult to peel the release paper at the time of use, and workability is reduced. There was a problem.

保管中におけるトンネル現象の発生防止と使用時の作業性の面から、粘着剤層と剥離紙の剥離強度を調整して所定の範囲に設定することが好ましい。このような展示用台紙を製造する方法としては、ポリスチレン系樹脂発泡体の両面に紙を水性接着剤を用いて積層し、乾燥させ、ついで一面に粘着剤を塗布し、その上に剥離強度を調整して剥離紙を積層する方法がある。またこのような展示用台紙を効率的に製造する方法として、予め剥離強度を調整したタック紙を製造する。ここでタック紙とは剥離紙、粘着剤層及び紙の積層物をいい、通常、長尺の巻物として製造される。ついで、このタック紙の紙側をポリスチレン系樹脂発泡体の一面に接着剤により積層し、もう一方の面に複合紙を接着剤により積層することで、剥離強度が調整された展示用台紙が製造される。   From the viewpoint of preventing the occurrence of a tunnel phenomenon during storage and workability during use, it is preferable to adjust the peel strength between the pressure-sensitive adhesive layer and the release paper and set it within a predetermined range. As a method of manufacturing such a display mount, paper is laminated on both sides of a polystyrene resin foam using a water-based adhesive, dried, and then an adhesive is applied on one side, and the peel strength is applied on the adhesive. There is a method of adjusting and laminating release paper. In addition, as a method for efficiently manufacturing such an exhibition mount, a tack paper having a peel strength adjusted in advance is manufactured. Here, the tack paper refers to a laminate of release paper, adhesive layer and paper, and is usually produced as a long scroll. Then, the paper side of this tack paper is laminated on one side of the polystyrene resin foam with an adhesive, and the composite paper is laminated on the other side with an adhesive, thereby producing an exhibition mount with adjusted peel strength. Is done.

しかし、かかる方法で製造された展示用台紙における粘着剤層と剥離紙の剥離強度が、タック紙製造時に調製された所定の剥離強度とは必ずしも一致せず、経時的に低下することが判明した。また、タック紙を用いないでポリスチレン系樹脂発泡体に水性接着剤を用いて紙を積層し、乾燥させ、ついで一面に粘着剤を塗布し、その上に剥離強度を調整して剥離紙を積層する方法においても、同様に安定した剥離強度の調整は難しい。従って、これらの方法だけでは、作業性に優れた所定の剥離強度を有する展示用台紙を安定して製造することが困難である。   However, it was found that the peel strength between the adhesive layer and the release paper in the display board manufactured by such a method does not necessarily match the predetermined peel strength prepared at the time of manufacturing the tack paper, and decreases with time. . Also, without using tack paper, paper is laminated on polystyrene resin foam using water-based adhesive, dried, then adhesive is applied on one side, and peel strength is adjusted on it to laminate release paper Similarly, it is difficult to adjust the peel strength stably. Therefore, it is difficult to stably produce a display board having a predetermined peel strength excellent in workability by these methods alone.

本発明の課題は、トンネル現象の発生が無く、作業性に優れた所定の剥離強度を有する展示用台紙を安定して製造することのできる展示用台紙の製造方法及び展示用台紙を提供するところにある。   An object of the present invention is to provide a method for manufacturing a display board and a display board capable of stably manufacturing a display board having a predetermined peel strength that is excellent in workability without occurrence of a tunnel phenomenon. It is in.

所定の剥離強度が安定して得にくい原因を鋭意検討した結果、タック紙等の紙とポリスチレン系樹脂発泡体とを接着するために使用した水性接着剤中の水分が、上記紙を通じて経時的に粘着剤層にしみ込み、これが粘着剤層の粘着強度を低下させてしまう知見を得た。   As a result of earnestly examining the cause that the predetermined peel strength is difficult to obtain stably, the moisture in the water-based adhesive used for bonding the paper such as tack paper and the polystyrene resin foam is gradually passed through the paper. The adhesive layer was soaked and the knowledge that this would reduce the adhesive strength of the adhesive layer was obtained.

本発明は、上記知見に基づき、ポリスチレン系樹脂発泡体の一面側に粘着剤層が形成され、さらにその上に剥離紙が積層された展示用台紙であって、
前記ポリスチレン系樹脂発泡体と前記粘着剤層との間に不透水性層が形成されている展示用台紙を採用した。
The present invention, based on the above knowledge, is an exhibition board in which an adhesive layer is formed on one side of a polystyrene resin foam, and further release paper is laminated thereon,
An exhibition board in which a water-impermeable layer is formed between the polystyrene resin foam and the pressure-sensitive adhesive layer was employed.

本発明の好ましい態様としては、ポリスチレン系樹脂発泡体と、その一面側に形成された粘着層と、さらにその上に積層された剥離紙を備えた展示用台紙であって、
前記粘着層は、前記ポリスチレン系樹脂発泡体の一面に水性接着剤を用いて貼付けられた紙と、その紙の上側に、前記剥離紙が接着される粘着剤層を有し、
前記紙と前記粘着剤層との間に不透水性層を備えたことを特徴とする展示用台紙である。
A preferred embodiment of the present invention is a display board comprising a polystyrene resin foam, an adhesive layer formed on one surface thereof, and a release paper laminated thereon,
The pressure-sensitive adhesive layer has a pressure-sensitive adhesive layer to which the release paper is bonded on the paper affixed to one surface of the polystyrene resin foam using an aqueous adhesive,
An exhibition board comprising a water-impermeable layer between the paper and the pressure-sensitive adhesive layer.

なお、前記不透水性層としてはポリオレフィン系樹脂層を使用することが好ましい。特に、前記不透水性層として、少なくとも粘着層側に積層する紙を備えたポリオレフィン系樹脂層を使用することが好ましい。また前記ポリスチレン系樹脂発泡体の他の一面側には、紙の間に樹脂フィルムが挟まれた複合紙を積層することが好ましい。   In addition, it is preferable to use a polyolefin-type resin layer as said water-impermeable layer. In particular, it is preferable to use, as the water-impermeable layer, a polyolefin-based resin layer provided with paper laminated on at least the adhesive layer side. Moreover, it is preferable to laminate | stack the composite paper by which the resin film was pinched | interposed between paper on the other surface side of the said polystyrene-type resin foam.

本展示用台紙を製造する好ましい方法としては、ポリスチレン系樹脂発泡体の一面側に粘着剤層を形成し、さらにその上に剥離紙を積層する展示用台紙の製造方法であって、
前記ポリスチレン系樹脂発泡体と前記粘着剤層との間に不透水性層を形成する方法である。
A preferred method for producing the display board is a method for producing a display board in which an adhesive layer is formed on one side of a polystyrene resin foam, and a release paper is further laminated thereon,
In this method, an impermeable layer is formed between the polystyrene resin foam and the pressure-sensitive adhesive layer.

また他の好ましい製造方法の態様としては、剥離紙と、粘着剤層及び紙を有する粘着層を備えたタック紙の当該紙側をポリスチレン系樹脂発泡体の一面に水性接着剤により積層する展示用台紙の製造方法であって、
前記紙が不透水性層を備えたタック紙を用いて、その紙側をポリスチレン系樹脂発泡体の一面に前記水性接着剤により積層することを特徴とする展示用台紙の製造方法である。
As another preferred production method, the paper side of the tack paper having the release paper and the pressure-sensitive adhesive layer and the pressure-sensitive adhesive layer having the paper is laminated on one surface of the polystyrene resin foam with an aqueous adhesive. A method for manufacturing a mount,
In the manufacturing method of the display board, the paper side is laminated on one surface of a polystyrene resin foam with the water-based adhesive using a tack paper having an impermeable layer.

また本発明のさらに他の好ましい製造方法の態様としては、ポリスチレン系樹脂発泡体の一面側に水性接着剤を用いて紙を積層し、その上に粘着剤層を形成し、さらにその上に剥離紙を積層する展示用台紙の製造方法であって、
前記紙と前記粘着剤層との間に不透水性層を形成することを特徴とする展示用台紙の製造方法である。
As another preferred production method of the present invention, paper is laminated on one side of a polystyrene resin foam using an aqueous adhesive, an adhesive layer is formed thereon, and further peeled off. A method of manufacturing a display mount for laminating paper,
An impermeable layer is formed between the paper and the pressure-sensitive adhesive layer.

本発明は、上記のとおり、前記ポリスチレン系樹脂発泡体側に不透水性層を含ませた上で粘着剤層を形成する構成であるので、前記ポリスチレン系樹脂発泡体に対して紙を積層する時に水性接着剤を使用しても、その接着剤中の水分が紙に浸透し粘着剤層に滲み込み粘着剤を希釈化させることを阻止することができる。
従って、充分量の水性接着剤を用いて製造しても、粘着剤層の粘着強度が変化せず、剥離強度を安定化させることができるため、あらかじめ設定された所定の剥離強度を維持することができ、これにより剥離紙のトンネル状の浮きあがりが防止できる展示用台紙を安定して製造することができる。
また、本発明によれば、このように全体的な粘着性への影響だけでなく、設備による水性接着剤のポリスチレン系樹脂発泡体に対する塗布ムラによる部分的な変化の影響もなく、均一な粘着性を持った展示用台紙を得ることができる。
As described above, the present invention has a structure in which an adhesive layer is formed after an impermeable layer is included on the polystyrene resin foam side. Therefore, when paper is laminated on the polystyrene resin foam, Even when an aqueous adhesive is used, it is possible to prevent moisture in the adhesive from penetrating into the paper and penetrating into the adhesive layer to dilute the adhesive.
Therefore, even if it is manufactured using a sufficient amount of water-based adhesive, the adhesive strength of the adhesive layer does not change and the peel strength can be stabilized, so that a predetermined predetermined peel strength can be maintained. This makes it possible to stably manufacture a display board that can prevent the release paper from lifting up in the form of a tunnel.
In addition, according to the present invention, not only the influence on the overall tackiness as described above, but also the influence of the partial change due to the uneven application of the water-based adhesive on the polystyrene resin foam by the equipment can be obtained. You can get a mount for exhibition.

特に、水性接着剤と接する側の紙を不透水性層を有する紙としたタック紙を用いて展示用台紙を製造した場合、製造時の水性接着剤の使用及び使用量の差によって展示用台紙の粘着剤層の粘着強度が変化せず、タック紙の製造時に設定した所定の剥離強度を有する展示用台紙を安定して製造することができる。   In particular, when an exhibition board is manufactured using tack paper in which the paper on the side in contact with the water-based adhesive is a paper having an impermeable layer, the display board is used depending on the difference in the amount of water-based adhesive used and the amount used. The adhesive strength of the adhesive layer does not change, and a display board having a predetermined peel strength set at the time of producing the tack paper can be stably produced.

なお、本発明ではポリスチレン系樹脂発泡体と粘着剤層との間にこれらを遮断する不透水性層を備える構成であるので、ポリスチレン系樹脂発泡体側には紙を貼り付けずに直接不透水性層又は樹脂フィルムを貼り付ける方法を採用することもできるが、少なくともポリスチレン系樹脂発泡体側に紙を備えるか又は一対の紙で挟まれたサンドイッチ構造の不透水性層とすることにより、展示用台紙製造時に発泡体と粘着剤層の接着性および粘着層の粘着を高める共に、発泡体中の残留発泡剤の逸散による表面の膨れが発生する現象を抑えることができる。これは残留発泡剤が紙を通じて側面から排出することができるためである。   In addition, since it is a structure provided with the water-impermeable layer which interrupts | blocks these between a polystyrene-type resin foam and an adhesive layer in this invention, it does not stick paper on the polystyrene-type resin foam side directly, but a water-impermeable property. A method of attaching a layer or a resin film can also be adopted, but at least a paper is provided on the polystyrene resin foam side, or a water impermeable layer having a sandwich structure sandwiched between a pair of papers is used as an exhibition mount. While improving the adhesiveness of a foam and an adhesive layer and adhesion of an adhesive layer at the time of manufacture, the phenomenon that the surface bulge by the dissipation of the residual foaming agent in a foam can be suppressed. This is because the residual foaming agent can be discharged from the side through the paper.

このように、本発明は、前記水性接着剤の水分が粘着剤へ浸透するのを防止し、剥離強度を安定させると共に剥離紙のトンネル状浮き上がり発生を防止する。また、前記不透水性層は水を浸透させない基材であるため、湿度の変化による紙の収縮によって発生する恐れのある展示用台紙の反りを最小限に抑えることができるため、剥離紙を取り除き、印刷物を貼った後に生じる反りも最小限に抑えることができる。   As described above, the present invention prevents moisture of the water-based adhesive from penetrating into the pressure-sensitive adhesive, stabilizes the peel strength, and prevents the release paper from being lifted. In addition, since the water-impermeable layer is a base material that does not allow water to permeate, the warping of the display board that may occur due to shrinkage of the paper due to a change in humidity can be minimized, so the release paper is removed. Further, the warpage generated after the printed material is pasted can be minimized.

なお、前記ポリスチレン系樹脂発泡体の他の一面側に、紙の間に樹脂フィルムが挟まれた複合紙を積層した展示用台紙の場合は、展示物を貼り付けて使用したときに生じやすい反りの発生をさらに防止することができる。   In the case of an exhibition board in which a composite paper in which a resin film is sandwiched between papers is laminated on the other side of the polystyrene-based resin foam, a warp that is likely to occur when an exhibit is affixed. Can be further prevented.

図1は本発明の一実施形態にかかる方法で製造された展示用台紙の一例を示す概略断面図である。
図において、100はポリスチレン系樹脂発泡体である。本実施形態では、図1に示すように、剥離紙300と、粘着剤層204及び紙202、203を含む粘着層200を備えたタック紙500の当該紙203側をポリスチレン系樹脂発泡体100の一面に水性接着剤層210により積層して展示用台紙を得ている。図示のように、このタック紙500には紙202、203の間に樹脂フィルムからなる不透水性層201が備えられている。
従って、前記ポリスチレン系樹脂発泡体100側に不透水性層201を含ませた上で粘着剤層204を形成する製造方法であるので、前記ポリスチレン系樹脂発泡体100に対して紙を貼り付ける時に水性接着剤を使用しても、その水性接着剤層210中の水分が紙203に浸透し粘着剤層204に滲み込み粘着剤層204を希釈化させることを阻止することができる。
FIG. 1 is a schematic sectional view showing an example of a display board manufactured by a method according to an embodiment of the present invention.
In the figure, 100 is a polystyrene resin foam. In the present embodiment, as shown in FIG. 1, the paper 203 side of the tack paper 500 including the release paper 300 and the adhesive layer 200 including the adhesive layer 204 and the papers 202 and 203 is placed on the side of the polystyrene resin foam 100. A display mount is obtained by laminating one surface with an aqueous adhesive layer 210. As shown in the figure, the tack paper 500 is provided with a water-impermeable layer 201 made of a resin film between the papers 202 and 203.
Accordingly, since the pressure-sensitive adhesive layer 204 is formed after the water-impermeable layer 201 is included on the polystyrene resin foam 100 side, the paper is attached to the polystyrene resin foam 100. Even when an aqueous adhesive is used, it is possible to prevent moisture in the aqueous adhesive layer 210 from penetrating into the paper 203 and penetrating into the adhesive layer 204 to dilute the adhesive layer 204.

従って、充分量の水性接着剤を用いて製造しても、粘着剤層204の粘着強度が変化せず、剥離強度を安定化させることができるため、剥離紙のトンネル状の浮きあがりが防止できる展示用台紙を安定して製造することができる。
また、本発明によれば、このように全体的な粘着性への影響をだけでなく、設備による水性接着剤のポリスチレン系樹脂発泡体100に対する塗布ムラによる部分的な変化の影響もなく、均一な粘着性を持った展示用台紙を得ることができる。
Therefore, even when manufactured using a sufficient amount of water-based adhesive, the adhesive strength of the pressure-sensitive adhesive layer 204 does not change, and the peel strength can be stabilized. Therefore, the tunnel-like lifting of the release paper can be prevented. An exhibition board can be manufactured stably.
In addition, according to the present invention, not only the influence on the overall tackiness as described above but also the influence of partial change due to uneven application of the water-based adhesive on the polystyrene resin foam 100 by equipment is uniform. A mount for exhibition with high adhesiveness can be obtained.

特に、本実施形態では、水性接着剤層210と接する側の紙203を不透水性層201を有する紙としたタック紙500を用いて展示用台紙を製造した場合、製造時の水性接着剤の使用及び使用量の差によって展示用台紙の粘着剤層204の粘着強度が変化せず、タック紙製造時に設定した所定の剥離強度を有する展示用台紙を安定して製造することができる。   In particular, in this embodiment, when the display board is manufactured using the tack paper 500 in which the paper 203 on the side in contact with the water-based adhesive layer 210 is a paper having the water-impermeable layer 201, the water-based adhesive at the time of manufacturing is manufactured. The adhesive strength of the pressure-sensitive adhesive layer 204 of the display board does not change depending on the difference in use and usage, and the display board having a predetermined peel strength set at the time of manufacturing the tack paper can be manufactured stably.

このように本実施形態によれば、ポリスチレン系樹脂発泡体100に対して紙を貼り付ける時に水性接着剤が粘着剤層204へ浸透するのを防止し、剥離強度を安定させると共に剥離強度低下による剥離紙300のトンネル状浮き上がり発生を防止する。また、前記不透水性層201は水を浸透させない基材であるため、湿度の変化による紙の収縮によって発生する恐れのある展示用台紙の反りを最小限に抑えることができるため、剥離紙300を取り除き、印刷物を貼った後に生じる反りも最小限に抑えることができる。   As described above, according to the present embodiment, the water-based adhesive is prevented from penetrating into the pressure-sensitive adhesive layer 204 when paper is pasted on the polystyrene resin foam 100, thereby stabilizing the peel strength and reducing the peel strength. This prevents the release paper 300 from being lifted up in a tunnel. Further, since the water-impermeable layer 201 is a base material that does not allow water to permeate, it is possible to minimize warping of the display board that may occur due to shrinkage of the paper due to a change in humidity. And the warping that occurs after the printed material is applied can be minimized.

また本実施形態では、タック紙500に用いられる不透水性層201は一対の紙202、203で挟まれたサンドイッチ構造の不透水性層201であるため、展示用台紙製造時にポリスチレン系樹脂発泡体100と粘着剤層204の接着性および粘着層204の粘着を高める共に、ポリスチレン系樹脂発泡体100から生じる残留発泡剤の逸散による表面の膨れが発生する現象を抑えることができる。   In this embodiment, the water-impermeable layer 201 used for the tack paper 500 is a water-impermeable layer 201 having a sandwich structure sandwiched between a pair of papers 202 and 203. The adhesion between the adhesive layer 204 and the adhesive layer 204 and the adhesiveness of the adhesive layer 204 can be enhanced, and the phenomenon of the occurrence of swelling of the surface due to the dissipation of the residual foaming agent generated from the polystyrene resin foam 100 can be suppressed.

なお、本実施形態で用いられる剥離紙300は、図1に示すように、樹脂フィルム302を挟んだ状態で、紙301が上層として形成され、下層には粘着剤層204に対する剥離するためのシリコーンコート層303が形成されている。   As shown in FIG. 1, the release paper 300 used in the present embodiment is formed with the paper 301 as an upper layer with the resin film 302 sandwiched therebetween, and the lower layer is silicone for peeling from the adhesive layer 204. A coat layer 303 is formed.

また、本発明の実施形態では、ポリスチレン系樹脂発泡体100の背面(他の一面)に、図1に示す様に、紙402、403の間に樹脂フィルム401が挟まれた複合紙400を接着剤410により積層したことにより、展示物を貼り付けて使用したときに生じやすい反りの発生をさらに防止するようにしている。   In the embodiment of the present invention, the composite paper 400 in which the resin film 401 is sandwiched between the papers 402 and 403 is bonded to the back surface (the other surface) of the polystyrene resin foam 100 as shown in FIG. By laminating with the agent 410, it is possible to further prevent the occurrence of warpage that is likely to occur when an exhibit is attached and used.

本発明の構成によれば、前記粘着剤層と前記剥離紙について所定の剥離強度に設定すれば所定の剥離強度を維持することができる。その意味で、本発明では格別剥離強度の値について限定されるものではない。しかし、前記トンネル現象の発生防止と使用時の作業性の面からすると、粘着剤層と剥離紙の所定の剥離強度としては、剥離強度の最小点荷重値が4gf以上、好ましくは5gf以上であり、且つ、剥離強度の積分平均荷重値が10gf以上20gf以下、好ましくは18gf以下で設定されることが望ましい。剥離強度の最小点荷重値が4gf未満、且つ、積分平均荷重値が10gf未満では、トンネル現象が発生し易い。積分平均荷重値が20gfを超えると、作業性が低下する。従って、タック紙製造時に上記範囲となる様に調製して、紙に不透水性層を含むタック紙を製造する。これを水性接着剤で発泡体に積層するので、所定の剥離強度の展示用台紙が得られる。   According to the configuration of the present invention, if the pressure-sensitive adhesive layer and the release paper are set to a predetermined peel strength, the predetermined peel strength can be maintained. In that sense, in the present invention, the value of the exceptional peel strength is not limited. However, from the viewpoint of preventing the occurrence of the tunnel phenomenon and workability at the time of use, as the predetermined peel strength of the adhesive layer and the release paper, the minimum point load value of the peel strength is 4 gf or more, preferably 5 gf or more. In addition, it is desirable that the integrated average load value of the peel strength is set to 10 gf or more and 20 gf or less, preferably 18 gf or less. If the minimum point load value of the peel strength is less than 4 gf and the integrated average load value is less than 10 gf, a tunnel phenomenon is likely to occur. When the integrated average load value exceeds 20 gf, workability is deteriorated. Therefore, the tack paper is prepared so as to be within the above range when the tack paper is manufactured, and the tack paper including the water-impermeable layer is manufactured. Since this is laminated | stacked on a foam with a water-based adhesive agent, the mount for display of predetermined peel strength is obtained.

この展示用台紙は、設定された所定の剥離強度を維持する展示用台紙であるから、使用前において剥離紙300が粘着剤層204からのトンネル状等の部分的に浮き上がりが防止される。従って、保管されたかかる展示用台紙を使用しても、被展示物がその部分で浮き上がる「ふくれ」の発生が防がれ、貼付した被展示物の表面に浮き上がった部分がスジ状の模様となって見映えを損ねてしまうことも抑えられる。また、この展示用台紙は、剥離紙300を粘着剤層204から剥がし易く、ポスター等の被展示物を容易にかつ確実に粘着剤層204に貼着しやすい。   Since the display board is a display board that maintains a predetermined set peel strength, the release paper 300 is prevented from partially lifting up from the pressure-sensitive adhesive layer 204 before use. Therefore, even when such stored display mounts are used, the occurrence of “bloat” in which the exhibit is lifted at that part is prevented, and the part that is lifted on the surface of the attached exhibit is a streak-like pattern. It is also possible to prevent the appearance from being lost. In addition, the display board easily peels the release paper 300 from the pressure-sensitive adhesive layer 204, and easily and reliably sticks a display object such as a poster to the pressure-sensitive adhesive layer 204.

ここで、この実施形態を含め、本発明の「剥離強度」は、JIS Z−0237(1980)に基づく180度引き剥がし法に準拠して測定した値で特定される。
すなわち、タック紙又は展示用台紙を、温度23±2℃、湿度60±5%に維持された室内に24時間保管した後、このタック紙又は展示用台紙より、長さ100mm、幅25mmの試験片を切り出し、その試験片の長手方向の一方端より剥離紙を全幅25mmにわたって5mm剥がし、180度折り返す。
Here, including this embodiment, the “peel strength” of the present invention is specified by a value measured according to the 180-degree peeling method based on JIS Z-0237 (1980).
That is, after the tack paper or the display board is stored in a room maintained at a temperature of 23 ± 2 ° C. and a humidity of 60 ± 5% for 24 hours, a test with a length of 100 mm and a width of 25 mm is made from the tack paper or the display board. A piece is cut out, the release paper is peeled off 5 mm over the entire width of 25 mm from one end in the longitudinal direction of the test piece, and folded back 180 degrees.

次に、図2に示す様に、剥離紙11が剥がされた上記試験片10のその剥がされた部分12を、測定装置の下側クランプ20に挟み込んで固定し、剥離紙11の折り返し部分11aを測定装置の上側クランプ21に挟む。上側クランプ21を200mm/minの速度で図3に示す矢印方向に引き上げ、荷重を自記記録計で収録する。測定は剥離紙をすべて剥がすまで行なう。最小点荷重値は、測定開始から最初の5mmを除いた位置からすべて剥がすまでに記録された荷重曲線における最小値である。積分平均荷重値は、測定開始から最初の5mmを除いた位置からすべて剥がすまでに記録された荷重曲線より求めたものである。サンプル数は3サンプルである。最小点荷重値はそれらの中での最小値とし、積分平均荷重値はそれらの相加平均値とする。荷重の測定装置としては、テンシロン万能試験機((株)オリエンテック社製、UCT−10T)を使用した。図2は同測定装置の要部概略図であり、図3は測定結果の概念図であり、積分平均荷重値と最小点荷重値をグラフから特定する方法を説示している。   Next, as shown in FIG. 2, the peeled portion 12 of the test piece 10 from which the release paper 11 has been peeled is sandwiched and fixed by the lower clamp 20 of the measuring apparatus, and the folded portion 11 a of the release paper 11 is secured. Is sandwiched between the upper clamps 21 of the measuring apparatus. The upper clamp 21 is pulled up in the direction of the arrow shown in FIG. 3 at a speed of 200 mm / min, and the load is recorded by a self-recording recorder. The measurement is performed until all the release paper is removed. The minimum point load value is the minimum value in the load curve recorded from the start of measurement until it is completely removed from the position excluding the first 5 mm. The integrated average load value is obtained from the load curve recorded from the start of measurement until it is completely removed from the position excluding the first 5 mm. The number of samples is 3 samples. The minimum point load value is the minimum value among them, and the integral average load value is the arithmetic average value thereof. As a load measuring device, a Tensilon universal tester (manufactured by Orientec Co., Ltd., UCT-10T) was used. FIG. 2 is a schematic diagram of a main part of the measurement apparatus, and FIG. 3 is a conceptual diagram of measurement results, illustrating a method for specifying an integral average load value and a minimum point load value from a graph.

ところで、本発明のポリスチレン系樹脂発泡体100に用いられるポリスチレン系樹脂としては、ポリスチレン、ゴム変性ポリスチレン、スチレン−アクリル酸共重合体、スチレン−メタクリル酸共重合体、スチレン−メタクリル酸メチル共重合体、スチレン−メタクリル酸エチル共重合体、スチレン−アクリル酸メチル共重合体、スチレン−アクリロニトリル共重合体、スチレン−アクリル酸エチル共重合体、ポリスチレン−ポリフェニレンエーテル共重合体、スチレン−無水マレイン酸共重合体、スチレン−ブタジエン−アクリロニトリル共重合体、ポリスチレンとポリフェニレンエーテルの混合物などを例示できる。   By the way, as polystyrene resin used for the polystyrene resin foam 100 of the present invention, polystyrene, rubber-modified polystyrene, styrene-acrylic acid copolymer, styrene-methacrylic acid copolymer, styrene-methyl methacrylate copolymer are used. Styrene-ethyl methacrylate copolymer, styrene-methyl acrylate copolymer, styrene-acrylonitrile copolymer, styrene-ethyl acrylate copolymer, polystyrene-polyphenylene ether copolymer, styrene-maleic anhydride copolymer Examples thereof include a blend, a styrene-butadiene-acrylonitrile copolymer, and a mixture of polystyrene and polyphenylene ether.

ポリスチレン系樹脂発泡体の厚みは好ましくは3〜20mm、さらに好ましくは5〜10mmである。ポリスチレン系樹脂発泡体の厚みが3mmより薄いと強度が不足し、20mmより厚すぎると展示スペースを取りすぎるため好ましくない。また、ポリスチレン系樹脂発泡体の発泡倍率は好ましくは5〜25倍、さらに好ましくは8〜20倍である。発泡倍率が5倍より低いと台紙が軽量性にかける。発泡倍率が25倍より高いと強度が弱くなる。   The thickness of the polystyrene resin foam is preferably 3 to 20 mm, more preferably 5 to 10 mm. If the thickness of the polystyrene-based resin foam is less than 3 mm, the strength is insufficient, and if it is more than 20 mm, too much display space is taken. The expansion ratio of the polystyrene resin foam is preferably 5 to 25 times, more preferably 8 to 20 times. If the expansion ratio is lower than 5 times, the mount will be light. When the expansion ratio is higher than 25 times, the strength is weakened.

前記粘着剤層204を形成する粘着剤としては、アクリル酸系、天然ゴムラテックス系、酢酸ビニル系などがあるが、粘着性の安定性や臭気の問題や粘着度のコントロールがし易いことからアクリル酸系が用いられ、特にアクリル酸エステル系エマルジョンタイプのものが好ましく、ポリアクリル酸ブチルが好ましい。この粘着剤層はアクリル酸エステル系ポリマーのコーティング層として形成できる。なおこの粘着剤層の塗布厚みは15〜35g/mが好ましい。塗布方法はグラビアロール方式の回転式塗布機やロールコーターなどによることができる。 There are acrylic acid type, natural rubber latex type, vinyl acetate type and the like as the pressure sensitive adhesive forming the pressure sensitive adhesive layer 204. However, the pressure sensitive adhesive, the problem of odor, and the degree of adhesion are easy to control. An acid type is used, and an acrylate type emulsion type is particularly preferable, and polybutyl acrylate is preferable. This pressure-sensitive adhesive layer can be formed as a coating layer of an acrylic ester polymer. In addition, as for the application | coating thickness of this adhesive layer, 15-35 g / m < 2 > is preferable. The application method may be a gravure roll type rotary coater or a roll coater.

なお、前記粘着剤層204を形成する粘着剤は、平坦に塗布をしても良いが凹凸を設け被展示物を貼付するさいに空気の抱き込みを防ぐ処置を行っても良い。また剥離紙に凹凸を設け、前記粘着剤層にそれ呼応した凹凸を形成させても良い。   Note that the pressure-sensitive adhesive forming the pressure-sensitive adhesive layer 204 may be applied flatly, or may be provided with unevenness to prevent air from being trapped when a display object is attached. Further, unevenness may be provided on the release paper, and the corresponding unevenness may be formed on the pressure-sensitive adhesive layer.

また本発明では、前記剥離紙300には、紙にレジン(樹脂)をアンカーコートしたものや、図1に示したように、紙の表面にシリコーンなどの剥離剤をコーティングしたものを用いることができる。既述したとおり、紙301の表面にシリコーンなどの剥離剤をコーティングしたものは、粘着剤層204に対面する剥離剤層を構成することができ、例えばシリコーンを剥離剤とする場合はシリコーンコート層303として適用される。   In the present invention, as the release paper 300, a paper-resin (resin) anchor-coated or a paper-coated release agent such as silicone is used as shown in FIG. it can. As described above, the surface of the paper 301 coated with a release agent such as silicone can constitute a release agent layer facing the pressure-sensitive adhesive layer 204. For example, when silicone is used as the release agent, the silicone coat layer 303 is applied.

また、本発明に用いられる剥離紙300としては、既述した実施形態の様に、紙に樹脂フィルムが積層された剥離紙として、紙にポリエチレンフィルムなどの樹脂フィルムを積層した複合紙のほか、紙の間にポリエチレンフィルムなどの樹脂フィルムをサンドイッチした複合紙などを用いることができる。シリコーンなどの剥離剤は、上記紙や上記樹脂フィルムに剥離剤層として構成することができ、例えばポリエチレンフィルムなどのプラスチックフィルムなどの表面に、シリコーンなどの剥離剤をコーティングした剥離紙を用いることができる。また、剥離紙が積層された粘着剤層を、ポリスチレン系樹脂発泡体の片面だけに形成する態様のほか、両面に形成する展示用台紙を採用することもできる。   In addition, as the release paper 300 used in the present invention, as in the embodiment described above, as a release paper in which a resin film is laminated on paper, in addition to a composite paper in which a resin film such as a polyethylene film is laminated on paper, A composite paper in which a resin film such as a polyethylene film is sandwiched between papers can be used. The release agent such as silicone can be configured as a release agent layer on the paper or the resin film. For example, a release paper in which a release agent such as silicone is coated on the surface of a plastic film such as a polyethylene film is used. it can. In addition to an embodiment in which the pressure-sensitive adhesive layer on which release paper is laminated is formed only on one side of the polystyrene-based resin foam, an exhibition board formed on both sides can also be employed.

上記剥離紙に用いられる紙301は、上質紙、グラシン紙、パーチメント紙や上質紙に樹脂フィルムが積層されたり、サンドイッチされた複合紙などであるが、総坪量50〜150g/mが好ましい。総坪量が50g/mより小さいと強度が低下し、剥離するときに破れやすくなる。総坪量が150g/mより大きいと展示用台紙が重くなったり、コスト高となる。 The paper 301 used for the release paper is a high-quality paper, glassine paper, parchment paper, or composite paper in which a resin film is laminated or sandwiched on high-quality paper, but a total basis weight of 50 to 150 g / m 2 is preferable. . When the total basis weight is less than 50 g / m 2 , the strength is lowered and the film is easily broken when peeled off. If the total basis weight is larger than 150 g / m 2 , the display board becomes heavy and the cost becomes high.

前記剥離紙300に用いられる剥離剤は、既述のとおり、フッ素系樹脂やシリコーン系樹脂などが挙げられる。ほとんどの場合、シリコーン系樹脂(例えばポリジメチルシロキサン)を紙又は樹脂フィルムなどの表面に塗布処理する。これらをトルエンなどの溶媒に分散させて塗布し、トルエンなどの溶媒を蒸発除去することで得ることができる。剥離剤のコーティング量は、剥離剤の種類によって異なり、この塗布量によって剥離強度を調整するが、シリコーン系樹脂の場合は3〜5g/m程度が好ましい。なお、粘着剤層と剥離紙の剥離強度の調整は、剥離紙に塗布される剥離剤の量で行うことができる。 Examples of the release agent used for the release paper 300 include a fluorine-based resin and a silicone-based resin as described above. In most cases, a silicone-based resin (for example, polydimethylsiloxane) is applied to a surface such as paper or a resin film. These can be obtained by dispersing them in a solvent such as toluene and applying them, and evaporating and removing the solvent such as toluene. The coating amount of the release agent varies depending on the type of the release agent, and the peel strength is adjusted by the applied amount. In the case of a silicone resin, about 3 to 5 g / m 2 is preferable. In addition, adjustment of the peeling strength of an adhesive layer and a release paper can be performed with the quantity of the release agent apply | coated to a release paper.

なお、ポリスチレン系樹脂発泡体100に接合される紙は、既述の様に、ポリスチレン系樹脂発泡体100の両面に接着することができるが、片面に接着することもできる。既述の実施形態のように、前記裏紙に相当する部分に複合紙400を接合することもできる。
具体的には、表面平滑性や印刷性に優れた上質紙、グラシン紙、バーチメント紙、クラフト紙などの紙やそれらの紙の間にポリエチレンフィルムなどの樹脂フィルムをサンドイッチした複合紙などが用いられる。総坪量70〜150g/mのものが好ましく用いられる。
これらの紙は樹脂フィルム層を含む複合紙など湿度変化による伸縮の少ないものが、展示板の反りの発生を防止するとともにそれによる剥離紙の浮き上がりが防止できるため好ましい。
前記ポリスチレン系樹脂発泡体100と紙の接着剤としては、酢酸ビニル系エマルジョン接着剤など公知の接着剤が使用できる。
The paper bonded to the polystyrene resin foam 100 can be adhered to both surfaces of the polystyrene resin foam 100 as described above, but can also be adhered to one surface. As in the above-described embodiment, the composite paper 400 can be bonded to a portion corresponding to the backing paper.
Specifically, high-quality paper, glassine paper, birchment paper, kraft paper, etc. with excellent surface smoothness and printability, and composite paper with a resin film such as polyethylene film sandwiched between them are used. It is done. Those having a total basis weight of 70 to 150 g / m 2 are preferably used.
These papers are preferably those that are less stretchable due to humidity changes, such as composite paper including a resin film layer, because they can prevent warping of the display board and also prevent the release paper from lifting up.
As the adhesive between the polystyrene resin foam 100 and the paper, a known adhesive such as a vinyl acetate emulsion adhesive can be used.

(不透水性層)
不透水性層に用いる材料としては、アルミニウムなどの金属箔や樹脂フィルムが挙げられる。不透水性層に用いる材料としては、不透水性であり、且つ、発泡板の製造に発泡剤として使用されるブタンなどのガス透過率が比較的大きなものが好ましい。これはポリスチレン系樹脂発泡板中のブタンなど残留発泡剤の逸散による展示用台紙表面の膨れの発生を減少させることができるからである。このような材料としては、ポリオレフィン系樹脂フィルムが好ましく、特に、ポリエチレン系樹脂フィルムやポリプロピレン系樹脂フィルムが価格も安く好ましい。
(Impermeable layer)
Examples of the material used for the impermeable layer include metal foils such as aluminum and resin films. As a material used for the water-impermeable layer, a material that is water-impermeable and has a relatively large gas permeability such as butane used as a foaming agent in the production of a foamed plate is preferable. This is because it is possible to reduce the occurrence of swelling on the surface of the display board due to the dissipation of the residual foaming agent such as butane in the polystyrene resin foam board. As such a material, a polyolefin resin film is preferable, and a polyethylene resin film or a polypropylene resin film is particularly preferable because of its low price.

(接着剤)
また、本発明でポリスチレン系樹脂発泡体100と粘着層200およびポリスチレン系樹脂発泡体100と複合紙400を貼り合せる接着剤としては、異臭が少なく、ロールコーターなどを用いて薄く接着剤を塗布しやすいことから、主溶剤として水を用いた水性接着剤が好ましい。210が水性接着剤層であることは既述のとおりである。接着層410が水性接着剤層であることが好ましい。
ここで、水性接着剤としては、澱粉、変性澱粉、ガゼイン、カルボキシメチルセルロース、ヒドロキシセルロース、大豆タンパク、ポリ酢酸ビニル、エチレン一酢酸ビニル・アクリル共重合体、エチレン・酢酸ビニル共重合体、アクリル変性酢酸ビニル共重合体などのエマルジョン系のものがあるが、取り扱いが容易で生産加工性が良いエマルジョン系の水性接着剤が好ましい。
(adhesive)
In the present invention, as the adhesive for bonding the polystyrene resin foam 100 and the adhesive layer 200 and the polystyrene resin foam 100 and the composite paper 400, there is little off-flavor, and the adhesive is thinly applied using a roll coater or the like. Since it is easy, the water-based adhesive using water as a main solvent is preferable. As described above, 210 is a water-based adhesive layer. The adhesive layer 410 is preferably a water-based adhesive layer.
Here, as the aqueous adhesive, starch, modified starch, casein, carboxymethylcellulose, hydroxycellulose, soybean protein, polyvinyl acetate, ethylene monoacetate / acrylic copolymer, ethylene / vinyl acetate copolymer, acrylic modified acetic acid There are emulsion-based ones such as vinyl copolymers, but emulsion-based aqueous adhesives that are easy to handle and have good processability are preferred.

水性エマルジョン系接着剤は、接着性を有する成分(不揮発分)が50〜60重量%となるような濃度で用いることが好ましい。少ないと初期接着力に劣り、多すぎると粘度が高くなりすぎて均一に薄く塗布することが困難となる。塗布量は、10〜50g/m(不揮発分として5〜30g/m)が好ましい。10g/m未満では均一に塗布することが難しく、また接着性が確保できない。50g/mを超えると接着性は充分であるが、コストアップになったり、過剰の水分によって紙に皺が入ったり製造時の乾燥に長時間を要し生産性が低下する。15〜40g/mが好ましく、20〜40g/mが特に好ましい。
なお、前記揮発分成分量は、JIS K682に準拠して測定した値であり、試料を105℃に1時間放置後の、(減量した重量/元の重量)を百分率で示した指数である。
The aqueous emulsion adhesive is preferably used at a concentration such that the adhesive component (nonvolatile content) is 50 to 60% by weight. If the amount is too small, the initial adhesive strength is inferior. If the amount is too large, the viscosity becomes too high and it becomes difficult to apply a uniform thin film. The coating amount is preferably 10 to 50 g / m 2 (5 to 30 g / m 2 as a nonvolatile content). If it is less than 10 g / m 2 , it is difficult to apply uniformly, and adhesion cannot be secured. If it exceeds 50 g / m 2 , the adhesiveness is sufficient, but the cost increases, wrinkles enter the paper due to excessive moisture, and a long time is required for drying during production, resulting in decreased productivity. Preferably 15~40g / m 2, 20~40g / m 2 is particularly preferred.
The amount of the volatile component is a value measured in accordance with JIS K682, and is an index indicating (weight reduced / original weight) in percentage after the sample is left at 105 ° C. for 1 hour.

なお、本発明における接着剤の塗布量は、あらかじめ測定しておいた紙と発泡体の重量の両者を貼り合わせた直後の展示用パネルの重量から接着剤の重量を調べ、貼り合わせた面積より除して求めた。   The amount of adhesive applied in the present invention is determined by examining the weight of the adhesive from the weight of the display panel immediately after bonding both the weight of the paper and foam measured in advance, and from the bonded area It was calculated by dividing.

なお、前記好ましい実施形態としてはタック紙を用いる方法を例示したが、
ポリスチレン系樹脂発泡体の一面側に水性接着剤を用いて紙を積層し、その上に粘着剤層を形成し、さらにその上に剥離紙を積層する展示用台紙の製造方法であって、
前記紙と前記粘着剤層との間に前記不透水性層を形成する製造方法も採用することができる。
In addition, although the method using tack paper was illustrated as the preferred embodiment,
It is a method for producing an exhibition board in which a paper is laminated on one surface side of a polystyrene resin foam using a water-based adhesive, an adhesive layer is formed thereon, and a release paper is further laminated thereon,
A production method for forming the water-impermeable layer between the paper and the pressure-sensitive adhesive layer can also be employed.

図1に示す構造の展示用台紙を試作した。
(タック紙の製造)
ロール状に巻かれた長尺の複合紙(ポリサンド紙)の一面に、粘着剤層としてポリアクリル酸ブチル(積水化学工業株式会社製、商品名「エスダイン#7450」)を24g/m塗布し、ついでその上に剥離紙を積層し、ロール状に巻き取って長尺のタック紙を得た。上記複合紙(ポリサンド紙)は、不透水性層である20g/mのポリエチレンフィルムの両面に厚み0.07mm、坪量50g/mのクラフト紙が積層された構造である。
A display mount having the structure shown in FIG.
(Manufacture of tack paper)
24 g / m 2 of polybutyl acrylate (manufactured by Sekisui Chemical Co., Ltd., trade name “ESDINE # 7450”) as an adhesive layer is applied to one side of a long composite paper (poly sand paper) wound in a roll. Then, release paper was laminated thereon and wound up in a roll shape to obtain a long tack paper. The composite paper (poly sand paper) has a structure in which kraft paper having a thickness of 0.07 mm and a basis weight of 50 g / m 2 is laminated on both surfaces of a 20 g / m 2 polyethylene film which is an impermeable layer.

前記剥離紙は、78g/mのクラフト紙と20g/mのポリエチレンフィルムが積層されており、またこのポリエチレンフィルム面に、かかる剥離紙と粘着剤層の剥離強度を調整する剥離層としての4g/mのシリコーン樹脂が塗布されている。 The release paper is a laminate of 78 g / m 2 of kraft paper and 20 g / m 2 of polyethylene film, and on the polyethylene film surface as a release layer for adjusting the release strength of the release paper and the adhesive layer. A silicone resin of 4 g / m 2 is applied.

製造されたタック紙の剥離紙と粘着剤層の剥離強度は、積分平均荷重10.2gf、最小点荷重値7.5gfであった。   The peel strength of the manufactured tack paper release paper and the pressure-sensitive adhesive layer was 10.2 gf of integral average load and 7.5 gf of minimum point load value.

前記タック紙を、縦1820mm、横910mm、厚み7mm、密度0.075g/cmのポリスチレン系樹脂発泡体の一方の面に水性接着剤として、エチレン・酢酸ビニル共重合体水性エマルジョン系接着剤(カナエ化学工業(株)、A―3400L、不揮発分55±2%)を20g/m塗布して積層した。ポリスチレン系樹脂発泡体の反対面には、複合紙(ポリサンド紙)を接着剤として、エチレン・酢酸ビニル共重合体水性エマルジョン系接着剤(カナエ化学工業(株)、A―3400L、不揮発分55±2%)を20g/m塗布して積層した。なお、前記複合紙(ポリサンド紙)は、20g/mのポリエチレンフィルムの両面に、厚みが0.07mm、坪量が50g/mのクラフト紙が積層されて構成されている。 As an aqueous adhesive on one surface of a polystyrene resin foam having a length of 1820 mm, a width of 910 mm, a thickness of 7 mm, and a density of 0.075 g / cm 3 , the tack paper is used as an aqueous emulsion adhesive of ethylene / vinyl acetate copolymer ( Kanae chemical industry (Ltd.), a-3400L, nonvolatile content 55 ± 2%) were laminated with 20 g / m 2 coating. On the other side of the polystyrene resin foam, composite paper (poly sand paper) is used as an adhesive, and an ethylene / vinyl acetate copolymer aqueous emulsion adhesive (Kanae Chemical Co., Ltd., A-3400L, nonvolatile content 55 ± 2%) was applied at 20 g / m 2 and laminated. The composite paper (poly sand paper) is formed by laminating kraft paper having a thickness of 0.07 mm and a basis weight of 50 g / m 2 on both sides of a 20 g / m 2 polyethylene film.

このようにして製造された展示用台紙について、1日後の剥離紙と粘着剤層の剥離強度を測定すると、積分平均荷重値10.2gf、最小点荷重値7.4gfであり、タック紙とポリスチレン系樹脂発泡体は強固に接着していた。製造14日後の展示用台紙の浮きスジを確認したところ、無しという判定がなされた。   When the peel strength of the release paper and the adhesive layer after one day is measured for the display board manufactured in this way, the integrated average load value is 10.2 gf and the minimum point load value is 7.4 gf. The resin foam was firmly adhered. After confirming the floating streaks on the display board 14 days after the production, it was determined that there was none.

次に、展示用台紙の前記剥離紙を前期粘着財層からはぎ取り、上質紙からなる印刷物を貼付した後に、気温23℃±2℃、相対湿度60%±5%条件下に24時間保管後の反りを測定した。その結果、その反りは最高で7mmであり、当該反りの発生が十分防止されていることが認められた。   Next, after peeling off the release paper of the display board from the previous adhesive layer and pasting a printed material made of high quality paper, it was stored for 24 hours under conditions of temperature 23 ° C. ± 2 ° C. and relative humidity 60% ± 5%. Warpage was measured. As a result, the warpage was 7 mm at the maximum, and it was confirmed that the warpage was sufficiently prevented.

なお、本実施例1を含む本発明において、展示用台紙の反りの測定は、印刷物が貼付された展示用台紙を平坦な面に置き、展示用台紙の四隅の平坦な面からの浮き上がり距離(cm)を測定する。測定は、両面で行い、8ヶ所の測定値の最高値を反りの値とした。   In the present invention including the first embodiment, the warping of the display board is measured by placing the display board with the printed material on a flat surface and lifting distances from the flat surfaces of the four corners of the display board ( cm). The measurement was performed on both sides, and the maximum value of the measured values at 8 locations was set as the warp value.

前記エチレン・酢酸ビニル共重合体水性エマルジョン系接着剤(カナエ化学工業(株)、A―3400L、不揮発分55±2%)の接着剤量を26g/mにした以外は実施例1と同様にして展示用台紙を製造した。その結果、製造1日後の剥離紙と粘着剤層の剥離強度は、積分平均荷重値10.1gf、最小点荷重値7.4gfであった。タック紙とポリスチレン系樹脂発泡体は強固に接着していた。製造14日後の展示用台紙の浮きスジを確認したところ無しという判定がなされた。 The same as Example 1 except that the amount of the adhesive of the ethylene / vinyl acetate copolymer aqueous emulsion adhesive (Kanae Chemical Industry Co., Ltd., A-3400L, nonvolatile content 55 ± 2%) was 26 g / m 2. An exhibition board was manufactured. As a result, the peel strength between the release paper and the pressure-sensitive adhesive layer one day after production was an integrated average load value of 10.1 gf and a minimum point load value of 7.4 gf. The tack paper and the polystyrene resin foam were firmly bonded. A determination was made that there was no confirmation of floating streaks on the display board 14 days after production.

[比較例1]
ロール状に巻かれた長尺の上質紙(厚み0.09mm、坪量83g/m)の一面に、粘着剤層としてポリアクリル酸ブチル(積水化学工業株式会社製、商品名「エスダイン#7450」)を24g/m塗布し、ついでその上に剥離紙を積層し、ロール状に巻き取って長尺のタック紙を得た。
[Comparative Example 1]
On one side of a long, high-quality paper (thickness 0.09 mm, basis weight 83 g / m 2 ) wound in a roll shape, polybutyl acrylate (manufactured by Sekisui Chemical Co., Ltd., trade name “Sdyne # 7450”) ”) Was applied at 24 g / m 2 , release paper was then laminated thereon, and wound into a roll to obtain a long tack paper.

前記剥離紙は、78g/mのクラフト紙と20g/mのポリエチレンフィルムが積層されており、またこのポリエチレンフィルム面に、かかる剥離紙と粘着剤層の剥離強度を調整する剥離層としての4g/mのシリコーン樹脂が塗布されている。 The release paper is a laminate of 78 g / m 2 of kraft paper and 20 g / m 2 of polyethylene film, and on the polyethylene film surface as a release layer for adjusting the release strength of the release paper and the adhesive layer. A silicone resin of 4 g / m 2 is applied.

製造されたタック紙の剥離紙と粘着剤層の剥離強度は、積分平均荷重10.2gf、最小点荷重値7.5gfであった。   The peel strength of the manufactured tack paper release paper and the pressure-sensitive adhesive layer was 10.2 gf of integral average load and 7.5 gf of minimum point load value.

前記タック紙を、縦1820mm、横910mm、厚み7mm、密度0.075g/cmのポリスチレン系樹脂発泡体の一方の面に水性接着剤として、エチレン・酢酸ビニル共重合体水性エマルジョン系接着剤(カナエ化学工業(株)、A―3400L、不揮発分55±2%)を20g/mを塗布して積層した。ポリスチレン系樹脂発泡体の反対面には、上質紙(厚み0.09mm、坪量83g/m)を、20g/mのエチレン・酢酸ビニル共重合体水性エマルジョン系接着剤(カナエ化学工業(株)、A―3400L、不揮発分55±2%)を塗布して積層した。 As an aqueous adhesive on one surface of a polystyrene resin foam having a length of 1820 mm, a width of 910 mm, a thickness of 7 mm, and a density of 0.075 g / cm 3 , the tack paper is used as an aqueous emulsion adhesive of ethylene / vinyl acetate copolymer ( Kanae Chemical Industry Co., Ltd., A-3400L, non-volatile content 55 ± 2%) was applied and laminated at 20 g / m 2 . On the opposite surface of the polystyrene resin foam, high-quality paper (thickness 0.09 mm, basis weight 83 g / m 2 ), 20 g / m 2 ethylene / vinyl acetate copolymer aqueous emulsion adhesive (Kanae Chemical Industries ( Co., Ltd., A-3400L, nonvolatile content 55 ± 2%) was applied and laminated.

製造された展示用台紙の1日後の剥離紙と粘着剤層の剥離強度は、積分平均荷重値7.7gf、最小点荷重値3.8gfであった。製造14日後の展示用台紙の浮きスジを確認したところ有りという判定がなされた。   The peel strength of the release paper and the pressure-sensitive adhesive layer one day after the manufactured display board was an integral average load value of 7.7 gf and a minimum point load value of 3.8 gf. A determination was made as to whether there was a floating streak on the display board 14 days after production.

また実施例1同様に展示用台紙の剥離紙を取り、上質紙からなる印刷物を貼付した後に気温23℃±2℃、相対湿度60%±5%条件下に24時間保管後の反りを測定したところ、最高15mmの反りが発生した。   In addition, as in Example 1, the release paper on the display board was taken out and a printed material made of high-quality paper was attached, and then the warpage after storage for 24 hours under conditions of an air temperature of 23 ° C. ± 2 ° C. and a relative humidity of 60% ± 5% was measured. However, warping of up to 15 mm occurred.

[比較例2]
前記エチレン・酢酸ビニル共重合体水性エマルジョン系接着剤(カナエ化学工業(株)、A―3400L、不揮発分55±2%)の接着剤量を26g/mにした以外は比較例1と同様にして展示用台紙を製造した。
[Comparative Example 2]
Comparative Example 1 except that the ethylene / vinyl acetate copolymer aqueous emulsion adhesive (Kanae Chemical Industry Co., Ltd., A-3400L, nonvolatile content 55 ± 2%) was changed to 26 g / m 2. An exhibition board was manufactured.

その結果、展示用台紙の1日後の剥離紙と粘着剤層の剥離強度は、積分平均荷重値6.2gf、最小点荷重値2.7gfであった。製造14日後の展示用台紙の浮きスジを確認したところ有りという判定がなされた。   As a result, the peel strength of the release paper and the pressure-sensitive adhesive layer one day after the display board was an integral average load value of 6.2 gf and a minimum point load value of 2.7 gf. A determination was made as to whether there was a floating streak on the display board 14 days after production.

[比較例3]
前記エチレン・酢酸ビニル共重合体水性エマルジョン系接着剤(カナエ化学工業(株)、A―3400L、不揮発分55±2%)の接着剤量を9g/mにした以外は比較例1と同様にして展示用台紙を製造した。
[Comparative Example 3]
Comparative Example 1 except that the ethylene / vinyl acetate copolymer aqueous emulsion adhesive (Kanae Chemical Industry Co., Ltd., A-3400L, nonvolatile content 55 ± 2%) was changed to 9 g / m 2. An exhibition board was manufactured.

その結果、かかる展示用台紙の1日後の剥離紙と粘着剤層の剥離強度は、積分平均荷重値9.1gf、最小点荷重値6.7gfであった。展示用台紙の浮きスジを確認したところ無しという判定がなされた。しかしポリスチレン系樹脂発泡体とタック紙の接着が弱く、端面から剥がれやすく、使用は不適切であるとされた。   As a result, the peel strength between the release paper and the pressure-sensitive adhesive layer after one day of the display board was an integral average load value of 9.1 gf and a minimum point load value of 6.7 gf. It was judged that there was no place where the streaks on the display board were confirmed. However, the adhesion between the polystyrene-based resin foam and the tack paper is weak, and it is easy to peel off from the end face, and it is considered inappropriate.

なお、前記剥離紙の浮き上がりの評価は、製造14日後の前記各実施例及び各比較例の展示用台紙を23℃±3℃、湿度60%±5%に維持された室内に24時間保管した後、剥離紙表面に現れた浮きスジを確認することによって得た。浮きスジの発生を以下の基準で評価した。
無し・・・10cm以上の長さの浮きスジが0である。
有り・・・10cm以上の長さの浮きスジが1本以上発生している。
In addition, the evaluation of the lift of the release paper was carried out for 24 hours in a room maintained at 23 ° C. ± 3 ° C. and humidity 60% ± 5% of the mounting boards for the examples and the comparative examples 14 days after production. After that, it was obtained by confirming the floating streaks that appeared on the surface of the release paper. The occurrence of floating streaks was evaluated according to the following criteria.
None: Floating streaks with a length of 10 cm or more are zero.
Existence: One or more floating streaks with a length of 10 cm or more are generated.

上記実施例及び比較例に係る展示用台紙の製造1日後の剥離紙と粘着剤層の剥離強度の変化を比較すればわかるように、本発明の製造方法で得られた展示用台紙は、剥離紙と粘着剤層のタック紙製造で調整した所定の剥離強度にほとんど変化がなく、また剥離紙表面には浮きスジの発生もなく、均一で安定した剥離強度を保有していることが認められる。   As can be seen by comparing the change in peel strength between the release paper and the pressure-sensitive adhesive layer one day after the production of the display mounts according to the above examples and comparative examples, the display mount obtained by the production method of the present invention is peeled off. It is recognized that there is almost no change in the specified peel strength adjusted in the paper and pressure-sensitive adhesive layer manufacturing, and there is no floating streaks on the release paper surface, and it has a uniform and stable peel strength. .

本発明の製造方法で得られた展示用台紙は、粘着剤層が所定の安定した剥離強度を持ち、剥離紙におけるトンネル状の浮き上がりの発生を抑えることができ、また剥離紙を粘着層から除いて印刷物等を貼った後にも吸湿による基材の伸縮を抑えることができる。その結果、台紙の反りを低く抑えた展示用台紙を提供することができる。
従って、この展示用台紙は、写真やポスターなどの印刷物を貼って展示する台紙として好適に用いられる。
In the display board obtained by the production method of the present invention, the pressure-sensitive adhesive layer has a predetermined stable peel strength, can suppress the occurrence of tunnel-like lifting in the release paper, and the release paper is removed from the pressure-sensitive adhesive layer. Even after the printed matter is pasted, the expansion and contraction of the base material due to moisture absorption can be suppressed. As a result, it is possible to provide an exhibition board in which the warpage of the board is kept low.
Therefore, the display board is suitably used as a display board on which printed materials such as photographs and posters are pasted.

図1は本発明の一実施形態を示す展示用台紙の概略断面図である。FIG. 1 is a schematic cross-sectional view of a display board showing an embodiment of the present invention. 図2は荷重の測定装置の要部概略図である。FIG. 2 is a schematic view of a main part of the load measuring device. 図3は測定結果の概念図であり、積分平均荷重値と最小点荷重値をグラフから特定する方法を示している。FIG. 3 is a conceptual diagram of the measurement result, and shows a method for specifying the integral average load value and the minimum point load value from the graph.

符号の説明Explanation of symbols

100 ポリスチレン系樹脂発泡体
200 粘着層
201 不透水性層
202 紙
203 紙
204 粘着剤層
210 水性接着剤層
300 剥離紙
301 紙
302 樹脂フィルム
303 シリコーンコート層
400 複合紙
401 樹脂フィルム
402 紙
403 紙
410 接着剤層
500 タック紙
DESCRIPTION OF SYMBOLS 100 Polystyrene resin foam 200 Adhesive layer 201 Water-impermeable layer 202 Paper 203 Paper 204 Adhesive layer 210 Aqueous adhesive layer 300 Release paper 301 Paper 302 Resin film 303 Silicone coat layer 400 Composite paper 401 Resin film 402 Paper 403 Paper 410 Adhesive layer 500 Tack paper

Claims (7)

ポリスチレン系樹脂発泡体の一面側に粘着剤層が形成され、さらにその上に剥離紙が積層された展示用台紙であって、
前記ポリスチレン系樹脂発泡体と前記粘着剤層との間に不透水性層が形成されていることを特徴とする展示用台紙。
It is a mount for exhibition in which an adhesive layer is formed on one side of a polystyrene resin foam, and a release paper is further laminated thereon,
An exhibition mount, wherein an impermeable layer is formed between the polystyrene resin foam and the pressure-sensitive adhesive layer.
ポリスチレン系樹脂発泡体と、その一面側に形成された粘着層と、さらにその上に積層された剥離紙を備えた展示用台紙であって、
前記粘着層は、前記ポリスチレン系樹脂発泡体の一面に水性接着剤を用いて貼付けられた紙と、その紙の上側に、前記剥離紙が接着される粘着剤層を有し、
前記紙と前記粘着剤層との間に不透水性層を備えたことを特徴とする展示用台紙。
A display board comprising a polystyrene resin foam, an adhesive layer formed on one surface thereof, and a release paper laminated thereon,
The pressure-sensitive adhesive layer has a pressure-sensitive adhesive layer to which the release paper is bonded on the paper affixed to one surface of the polystyrene resin foam using an aqueous adhesive,
An exhibition board comprising an impermeable layer between the paper and the adhesive layer.
前記不透水性層がポリオレフィン系樹脂層からなる請求項1又は2記載の展示用台紙。   The display board according to claim 1 or 2, wherein the water-impermeable layer is made of a polyolefin resin layer. 前記ポリスチレン系樹脂発泡体の他の一面側に、紙の間に樹脂フィルムが挟まれた複合紙が積層された請求項1〜3のいずれかの項に記載の展示用台紙。   The display board according to any one of claims 1 to 3, wherein a composite paper in which a resin film is sandwiched between papers is laminated on the other surface side of the polystyrene resin foam. ポリスチレン系樹脂発泡体の一面側に粘着剤層を形成し、さらにその上に剥離紙を積層する展示用台紙の製造方法であって、
前記ポリスチレン系樹脂発泡体と前記粘着剤層との間に不透水性層を形成することを特徴とする展示用台紙の製造方法。
It is a method for manufacturing an exhibition board, in which an adhesive layer is formed on one side of a polystyrene resin foam, and a release paper is further laminated thereon,
An impermeable layer is formed between the polystyrene resin foam and the pressure-sensitive adhesive layer.
剥離紙と、粘着剤層及び紙を有する粘着層を備えたタック紙の当該紙側をポリスチレン系樹脂発泡体の一面に水性接着剤により積層する展示用台紙の製造方法であって、
前記紙が不透水性層を備えたタック紙を用いて、その紙側をポリスチレン系樹脂発泡体の一面に前記水性接着剤により積層することを特徴とする展示用台紙の製造方法。
Release paper, and a method for producing a display board, wherein the paper side of a tack paper having an adhesive layer and an adhesive layer having paper is laminated on one surface of a polystyrene resin foam with an aqueous adhesive,
A method for producing an exhibition mount, wherein the paper is laminated with a water-based adhesive on one surface of a polystyrene resin foam using a tack paper having an impermeable layer.
ポリスチレン系樹脂発泡体の一面側に水性接着剤を用いて紙を積層し、その上に粘着剤層を形成し、さらにその上に剥離紙を積層する展示用台紙の製造方法であって、
前記紙と前記粘着剤層との間に不透水性層を形成することを特徴とする展示用台紙の製造方法。

It is a method for producing an exhibition board in which a paper is laminated on one surface side of a polystyrene resin foam using a water-based adhesive, an adhesive layer is formed thereon, and a release paper is further laminated thereon,
An impermeable layer is formed between the paper and the pressure-sensitive adhesive layer.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111554193A (en) * 2019-01-14 2020-08-18 三星显示有限公司 Protective tape and display device including the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029738B2 (en) * 1971-08-06 1975-09-26
JPH08216306A (en) * 1995-02-09 1996-08-27 Oji Yuka Synthetic Paper Co Ltd Indication form
JP2002341800A (en) * 2001-05-15 2002-11-29 Sofuken:Kk Display board

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029738B2 (en) * 1971-08-06 1975-09-26
JPH08216306A (en) * 1995-02-09 1996-08-27 Oji Yuka Synthetic Paper Co Ltd Indication form
JP2002341800A (en) * 2001-05-15 2002-11-29 Sofuken:Kk Display board

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111554193A (en) * 2019-01-14 2020-08-18 三星显示有限公司 Protective tape and display device including the same

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