JPH01263184A - Removable tacky adhesive paper and production thereof - Google Patents

Removable tacky adhesive paper and production thereof

Info

Publication number
JPH01263184A
JPH01263184A JP9166788A JP9166788A JPH01263184A JP H01263184 A JPH01263184 A JP H01263184A JP 9166788 A JP9166788 A JP 9166788A JP 9166788 A JP9166788 A JP 9166788A JP H01263184 A JPH01263184 A JP H01263184A
Authority
JP
Japan
Prior art keywords
adhesive
paper
coating
emulsion
tacky adhesive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP9166788A
Other languages
Japanese (ja)
Inventor
Yoshihiro Kuroyama
黒山 良弘
Eiichi Sumimura
炭村 栄一
Tsuyoshi Yasuda
安田 強
Shigeo Nakamura
中村 重夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Kokusaku Pulp Co Ltd
Original Assignee
Sanyo Kokusaku Pulp Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Kokusaku Pulp Co Ltd filed Critical Sanyo Kokusaku Pulp Co Ltd
Priority to JP9166788A priority Critical patent/JPH01263184A/en
Publication of JPH01263184A publication Critical patent/JPH01263184A/en
Pending legal-status Critical Current

Links

Landscapes

  • Adhesive Tapes (AREA)
  • Paper (AREA)

Abstract

PURPOSE:To obtain a novel tacky adhesive paper having excellent removability, by applying a specific amount of a foamed tacky adhesive layer to a surface of a base paper and controlling the adhesive force of the layer to a stainless steel plate. CONSTITUTION:The objective tacky adhesive paper can be produced by coating a surface of a base paper with a tacky adhesive emulsion produced by compounding (A) 100pts.wt. of a tacky adhesive emulsion with (B) 1pt.wt. of an emulsion solid component at a rate of 5-20g/m<2> and a foaming ratio of >=2, drying the coating layer, laminating to a releasing paper and adjusting the adhesive force to a stainless steel to 20-400g/cm<2>.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は再剥離性の良好な粘着紙及びその製造法に関す
るものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an adhesive paper with good removability and a method for producing the same.

〔従来の技術と発明が解決しようとする課題〕従来、再
剥離型粘着紙には弱粘着の糊が用いられ、転写塗工法に
よって製造されていた。転写塗工法とは、シリコン樹脂
などで紙または合成樹脂フィルムの表面を剥離処理した
所謂剥離シートに粘着剤を塗工し、乾燥した後に基紙な
どに貼合する方法であり、粘着シートの塗工方式として
広く用いられている方法である。
[Prior Art and Problems to be Solved by the Invention] Conventionally, removable adhesive paper uses a weak adhesive glue and is manufactured by a transfer coating method. The transfer coating method is a method in which an adhesive is applied to a so-called release sheet made by releasing the surface of paper or a synthetic resin film with silicone resin, etc., and then bonded to a base paper etc. after drying. This is a widely used method.

再剥離型粘着剤の様な弱粘着の糊を転写塗工すると、紙
への投錨力が劣る。この方法で再剥離型粘着紙を製造す
ると、粘着紙を被着体から剥がす際にスムーズに剥がれ
なかったり、被着体に粘着剤が残存する場合が多かった
。このため通常、Il造の際に紙に下塗層を設けたり、
または硬化型の粘着剤を用いることにより投錨力の改善
を行なっているのが通例である。一般にエマルジョン系
粘着剤では硬化型が多いがポットライフが短いため、そ
の取扱いは必ずしも容易ではなかった。また、6紙への
直接塗工により投錨力を上げることも考えられるが、水
系であるため紙の収縮やカールの問題が存在している。
When transfer-coating a weakly adhesive adhesive such as a removable adhesive, the anchoring force to the paper is poor. When removable adhesive paper is manufactured using this method, the adhesive paper often does not peel off smoothly from the adherend, or the adhesive remains on the adherend. For this reason, it is common to apply an undercoat layer to the paper during Il construction,
Alternatively, the anchoring force is usually improved by using a curable adhesive. In general, many emulsion-based adhesives are curable, but their pot life is short, so handling them has not always been easy. It is also possible to increase the anchoring force by directly applying it to paper, but since it is water-based, there are problems with shrinkage and curling of the paper.

〔課題を解決するための手段〕[Means to solve the problem]

本発明者等は粘着剤エマルジョンの塗工方法に就いて鋭
意研究の結果、再剥離型粘着剤に適した塗工方法及び新
規な再剥離型粘着紙を見出すに至った。即ち、粘着剤エ
マルジョン固ヤ1分100部(以下、総へて重量部)に
対し乳化剤1部以−トを含む粘着剤エマルジョンを、発
泡倍率2倍以」二に発泡せしめた泡状粘着剤とし、基紙
の片面に5〜20 g / nrの割合で直接塗]二、
乾燥し剥離紙と貼合して成るもので粘着層の塗工量を5
〜20g/rrf’とする事によって対ステンレス板接
着力を20〜400g / C11に調整することを特
徴とする1す剥離型粘着紙及びその製造法を提供するも
のである。
The inventors of the present invention have conducted extensive research into methods for applying adhesive emulsions, and as a result have discovered a coating method suitable for removable adhesives and a novel removable adhesive paper. That is, a foam adhesive prepared by foaming an adhesive emulsion containing 1 part or more of an emulsifier to 100 parts per minute of the adhesive emulsion (hereinafter referred to as "total parts by weight") to an expansion ratio of 2 times or more. and directly coated on one side of the base paper at a rate of 5 to 20 g/nr]2.
It is dried and laminated with release paper, and the coating amount of the adhesive layer is 5.
The present invention provides a single-peel adhesive paper and a method for producing the same, characterized in that the adhesive strength to stainless steel plate is adjusted to 20 to 400 g/C11 by adjusting the adhesive strength to 20 g/rrf'.

本発明の構成を図によって説明する。図は本発明に成る
再剥離型粘着紙の構成を説明するための拡大断面図であ
り、図中、1はME紙、2は粘、ff剤層、3は剥離層
、4は再剥離型粘着紙を示す。
The configuration of the present invention will be explained with reference to the drawings. The figure is an enlarged sectional view for explaining the structure of the removable adhesive paper according to the present invention. In the figure, 1 is ME paper, 2 is adhesive, ff agent layer, 3 is a release layer, and 4 is removable Shows adhesive paper.

本発明の特徴は粘着剤エマルジョンを泡状にすることに
より粘着剤の見掛けの粘度を高くし、紙中への粘着剤の
浸透を抑え、紙表面での歩留りを上げることにより低塗
工量で紙への直接塗工を可能にした点にある。従来、紙
への直接塗工で紙の収縮やカールが問題となったのは、
塗=rする水分の絶対聴が多いためと考えられる。本発
明の泡状粘着剤の塗=r−では、低塗工量であるため水
分量も減少し、更に紙表面での歩留りが向上し紙中への
水分の浸透も低減させる効果が期待される。このため、
水分による紙の収縮やカールの問題が解消した。また、
紙への直接塗工であるため紙への投錨力にも優れている
。従来、再剥離用エマルジョン粘着剤では硬化型が用い
られていたが、本発明による方法では紙への直接塗工で
あるため硬化型である必要は無く、一般のエマルジョン
系粘着剤を用いても投錨力に欠けること無く使用するこ
とが出来る。
The feature of the present invention is to increase the apparent viscosity of the adhesive by turning the adhesive emulsion into a foam, suppressing the penetration of the adhesive into the paper, and increasing the yield on the paper surface, resulting in a low coating amount. The key point is that it enables direct coating on paper. Conventionally, paper shrinkage and curling was a problem when directly applied to paper.
This is thought to be due to the fact that there is a large amount of absolute moisture in the water. When the foam adhesive of the present invention is applied at r-, the amount of water is reduced due to the low coating amount, and it is also expected to improve the yield on the paper surface and reduce the penetration of water into the paper. Ru. For this reason,
The problem of paper shrinkage and curling due to moisture has been resolved. Also,
Because it is applied directly to paper, it also has excellent anchoring power to paper. Conventionally, hardening type emulsion adhesives have been used for removable adhesives, but since the method of the present invention is applied directly to paper, there is no need for hardening type adhesives, and general emulsion adhesives can be used. It can be used without lacking anchoring power.

本発明では見掛は上、高粘度の泡状エマルジョンを塗工
するため、紙中への浸透は従来のエマルジョンに比べ遥
かに少なくなる。この事は粘度が高いこともあるが、泡
の径が紙の繊維間距離よりも大きいため容易に浸入出来
ないためと考えら汎る。このことは、例えば、低倍率の
光学顕微鏡などで粘着剤塗工表面を*察すると、泡の形
状を保ち紙表面に一部留まっているのを確認出来ること
から想像出来る。この様にして粘着剤の紙表面への歩留
りが向上する。また、泡塗工であるため塗工液の見掛け
の密度が小さくなり、従来と同じ塗工条件であっても低
塗工量にすることが出来る。
In the present invention, since a foamy emulsion with a good appearance and high viscosity is applied, penetration into the paper is far less than that of conventional emulsions. Although this may be due to the high viscosity, it is generally believed that the diameter of the bubbles is larger than the distance between the fibers of the paper, so they cannot easily penetrate. This can be imagined from the fact that when observing the adhesive-coated surface using a low-magnification optical microscope, for example, it can be seen that the bubbles retain their shape and remain partially on the paper surface. In this way, the yield of the adhesive on the paper surface is improved. In addition, since foam coating is used, the apparent density of the coating liquid is reduced, and a low coating amount can be achieved even under the same coating conditions as conventional coatings.

一般に粘着剤は、その接着力が塗工量の増加により増大
するため、低塗工量では低接着力となる。
Generally, the adhesive force of an adhesive increases as the amount of coating increases, so a low amount of adhesive results in a low adhesive force.

従って本発明では一般強粘着の糊を用いても低塗工量で
あるため再剥離用として供し得る程度の低接着力にする
ことが出来るのである。このためには5〜20g/イの
塗工量が好ましく、5 K/ Ife未満では対ステン
レス板接着力が20g/a1以下になり実用的でない。
Therefore, in the present invention, even if a general strong adhesive is used, the amount of coating is small, so that the adhesive strength can be made low enough to be used for re-peeling. For this purpose, a coating amount of 5 to 20 g/a is preferable, and if it is less than 5 K/if, the adhesive strength to the stainless steel plate will be less than 20 g/a1, which is not practical.

また、20g/rrrを超すと400 K/am以上の
接着力となり再剥離性に問題を生じる。
Moreover, if it exceeds 20 g/rrr, the adhesive strength will be 400 K/am or more, causing a problem in removability.

本発明でいう発泡の方法にはエマルジョンに空気を吹き
込む方式の発泡機や通常の攪拌機を高速で回転させ泡を
含ませるなどの方法を用いることが出来る。生じた泡を
安定化させるために粘着剤エマルジョン100部中に乳
化剤固型分 1部具1−含んだものが好ましい。また、
見掛けの粘度を高くするためには発泡倍率2倍以上が必
要で、それ以下では元の液の粘度と殆ど変わりがなくな
る。
As the foaming method in the present invention, a foaming machine that blows air into the emulsion or a method that rotates an ordinary stirrer at high speed to incorporate foam can be used. Preferably, 1 part emulsifier solids are included in 100 parts adhesive emulsion to stabilize the foam formed. Also,
In order to increase the apparent viscosity, it is necessary to increase the expansion ratio to 2 times or more, and if the expansion ratio is less than that, the viscosity will be almost the same as the original liquid.

塗上方式としては1通常のロールコート、マイヤーバー
コード、エアーナイフコート、コンマコートなどの計徽
による塗工が可能である。
As for the coating method, coating can be carried out by conventional roll coating, Mayer bar code, air knife coating, comma coating, etc.

剥離紙としては、基紙の片面をシリコン処理したもの、
ポリオレフィン処理したもの、または界面活性剤処理し
たものなどを用いることが出来る。
For release paper, base paper with one side treated with silicone,
Those treated with polyolefin or those treated with a surfactant can be used.

〔実施例〕〔Example〕

実施例1 アクリル酸2−エチルヘキシル45部、アクリル酸ブチ
ル42部、メタクリル酸メチル10部、アクリル酸ヒド
ロキシエチル2部、アクリル酸 1部、過硫酸カリウム
0.5部、ドデシルベンゼンスルホン酸ソーダ 1部、
水100部を通常の方法で乳化共重合させ、アンモニア
水でpH8に調製して粘着剤エマルジョンを得た。
Example 1 45 parts of 2-ethylhexyl acrylate, 42 parts of butyl acrylate, 10 parts of methyl methacrylate, 2 parts of hydroxyethyl acrylate, 1 part of acrylic acid, 0.5 part of potassium persulfate, 1 part of sodium dodecylbenzenesulfonate ,
100 parts of water was subjected to emulsion copolymerization using a conventional method, and the pH was adjusted to 8 with aqueous ammonia to obtain an adhesive emulsion.

この粘着剤エマルジョン100部にアニオン乳化剤(n
−ドデシルベンゼンスルホン酸ソーダ:商品名ニューレ
ックスR;日本油脂社製)1部を添加し1発泡機にて発
泡倍率2.5倍の泡状粘着剤とした。この粘着剤をロー
ルコート法で坪170g/耐の上質紙に塗工し、110
℃で1分間乾燥した後、剥離紙と貼合し塗工量12.3
 g / r+7の再剥離型粘着紙を得た。
Anionic emulsifier (n
- 1 part of sodium dodecylbenzenesulfonate (trade name: Newlex R; manufactured by NOF Corporation) was added to form a foam adhesive with a foaming ratio of 2.5 times using a foaming machine. This adhesive was applied to high-quality paper of 170 g/proof by roll coating method, and
After drying at ℃ for 1 minute, it was laminated with release paper and the coating amount was 12.3
A removable adhesive paper of g/r+7 was obtained.

この粘着紙の対ステンレス板接着力及び被着体の糊残り
は後表に示す通りであった。
The adhesive strength of this adhesive paper to the stainless steel plate and the adhesive residue on the adherend were as shown in the table below.

実施例2 実施例1で得られた粘着剤エマルジョン100部にノニ
オン乳化剤(ポリオキシエチレンノニルフェニルエーテ
ル:商品名ノニオンN5210 ;日本油脂社製)1.
5部を添加し、攪拌機にて発泡倍率 2倍の泡状粘適剤
とした。この粘着剤をコンマコート法で、坪jt 90
 g / rdの片面コート紙の非コート面に塗工し、
実施例1と同様の条件で乾燥した後、剥離紙と貼合し、
塗工量14.0g/ifの再剥離型粘着紙を得た。
Example 2 A nonionic emulsifier (polyoxyethylene nonylphenyl ether: trade name Nonion N5210; manufactured by NOF Corporation) was added to 100 parts of the adhesive emulsion obtained in Example 1.
5 parts of the mixture was added to form a foamy adhesive with a foaming ratio of 2 times using a stirrer. Apply this adhesive using the comma coat method to
Coating on the non-coated side of g/rd single-sided coated paper,
After drying under the same conditions as in Example 1, laminated with release paper,
A removable adhesive paper with a coating weight of 14.0 g/if was obtained.

この粘着紙の対ステンレス板接着力及び被着体の糊残り
は、後表に示す通りであった。
The adhesive strength of this adhesive paper to the stainless steel plate and the adhesive residue on the adherend were as shown in the table below.

比較例1 実施例1で得られた粘着剤エマルジョンをロールコート
法で、坪量10g/dの上質紙に塗工し、実施例1と同
様の条件で乾燥した処、紙にカール及びシワが著しく発
生した。
Comparative Example 1 The adhesive emulsion obtained in Example 1 was coated on high-quality paper with a basis weight of 10 g/d using a roll coating method, and dried under the same conditions as in Example 1. The paper showed no curls or wrinkles. occurred significantly.

比較例2 実施例1で得られた粘着剤エマルジョンをロールコート
法で剥離紙に塗工し、実施例1と同様の条件で乾燥した
後、坪量70g/rrrの上質紙と貼合し、塗工量22
.3 g / rfの粘着紙を得た。
Comparative Example 2 The adhesive emulsion obtained in Example 1 was applied to release paper using a roll coating method, dried under the same conditions as Example 1, and then laminated with high-quality paper having a basis weight of 70 g/rrr. Coating amount 22
.. A 3 g/rf adhesive paper was obtained.

この粘着紙の対ステンレス板粘着力は後表に示す通りで
あった。
The adhesive strength of this adhesive paper to the stainless steel plate was as shown in the table below.

表 接着力は、JIS−Z−15381C準じ、20℃、6
5%RH(7)室内で粘着紙を3−のローラーで2.5
倍往復して貼り付け、10分後に引張り試験機により3
00部m/lll1nの引張り速度で180°の角度か
ら剥がした場合の接着力を測定した。
The surface adhesive strength is according to JIS-Z-15381C, 20℃, 6
5%RH (7) Roll the adhesive paper indoors with a 3-2.5 roller.
Paste it back and forth twice, and after 10 minutes, use a tensile tester to
The adhesive strength was measured when the film was peeled off from an angle of 180° at a tensile rate of 00 parts m/lll1n.

【図面の簡単な説明】[Brief explanation of the drawing]

図は本発明になる粘着紙の構成説明用の拡大断面図であ
る6 図中。 1・・・・表面基紙 2・・・・粘着剤層 3・・・・剥離紙 4・・・・粘着紙 特許出願人 山陽国策バルブ株式会社
Figure 6 is an enlarged sectional view for explaining the structure of the adhesive paper according to the present invention. 1... Surface base paper 2... Adhesive layer 3... Release paper 4... Adhesive paper Patent applicant Sanyo Kokusaku Valve Co., Ltd.

Claims (1)

【特許請求の範囲】 1 基紙の片面に泡状粘着剤層が塗工量5〜20g/m
^2の割合で塗工されており、その対ステンレス板接着
力が20〜400g/cmであることを特徴とする再剥
離型粘着紙。 2 粘着剤エマルジョン100重量部に対し乳化剤固型
分1重量部以上を含む粘着剤エマルジョンを発泡倍率2
倍以上とし基紙の片面に塗工、乾燥し剥離紙と貼合する
ことによる再剥離型粘着紙の製造法。
[Claims] 1. A foam adhesive layer coated on one side of the base paper in a coating amount of 5 to 20 g/m
A removable adhesive paper coated at a ratio of ^2 and having an adhesive strength to a stainless steel plate of 20 to 400 g/cm. 2 An adhesive emulsion containing 1 part by weight or more of emulsifier solids per 100 parts by weight of the adhesive emulsion is foamed at a foaming ratio of 2.
A method for producing removable adhesive paper by coating one side of a base paper, drying it, and laminating it with a release paper.
JP9166788A 1988-04-15 1988-04-15 Removable tacky adhesive paper and production thereof Pending JPH01263184A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9166788A JPH01263184A (en) 1988-04-15 1988-04-15 Removable tacky adhesive paper and production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9166788A JPH01263184A (en) 1988-04-15 1988-04-15 Removable tacky adhesive paper and production thereof

Publications (1)

Publication Number Publication Date
JPH01263184A true JPH01263184A (en) 1989-10-19

Family

ID=14032833

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9166788A Pending JPH01263184A (en) 1988-04-15 1988-04-15 Removable tacky adhesive paper and production thereof

Country Status (1)

Country Link
JP (1) JPH01263184A (en)

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