JP2000218204A - Masking tape or sheet for coating - Google Patents
Masking tape or sheet for coatingInfo
- Publication number
- JP2000218204A JP2000218204A JP11327533A JP32753399A JP2000218204A JP 2000218204 A JP2000218204 A JP 2000218204A JP 11327533 A JP11327533 A JP 11327533A JP 32753399 A JP32753399 A JP 32753399A JP 2000218204 A JP2000218204 A JP 2000218204A
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- sheet
- tape
- pressure
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Adhesives Or Adhesive Processes (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Adhesive Tapes (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は塗装用のマスキング
テープ又はシート、特に自動車などの塗装用に用いるマ
スキングテープ又はシートに関し、より詳細には、目的
とする被着体の表面に確実に追従させて貼り付けること
ができ、しかも不要になった時には、切れたり裂けたり
することなくきれいに剥がすことができる塗装用のマス
キングテープ又はシートに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a masking tape or sheet for painting, and more particularly to a masking tape or sheet used for painting an automobile or the like, and more particularly, to a masking tape or sheet for surely following the surface of a target adherend. The present invention relates to a masking tape or sheet for painting that can be stuck and attached, and can be peeled off cleanly without breaking or tearing when it is no longer needed.
【0002】[0002]
【従来の技術】従来、貼り付け後目的終了と共に剥が
す、いわゆるマスキング用途に用いられる粘着テープと
して、基材に塩化ビニル樹脂やポリエステル等のプラス
チックを用いたテープや、基材に和紙・クレープ紙など
の多孔性紙材料を用いたテープが多く使われている。2. Description of the Related Art Conventionally, as an adhesive tape used for so-called masking applications, which is peeled off at the end of application after pasting, a tape using a plastic such as a vinyl chloride resin or polyester as a base material, Japanese paper / crepe paper as a base material, etc. Tapes using porous paper materials are widely used.
【0003】その中でも基材の材料として和紙など多孔
性紙材料を用いたものは、テープを手で切ることができ
る、作業性が良い、比較的安価である等の理由から汎用
的に用いられている。この多孔性紙材を用いた粘着テー
プは、一般に叩解した木材パルプと麻や合成短繊維等を
混抄して多孔性紙材とし、紙材の強度や伸びを適度に調
整し、含浸処理や離型処理を施した後、表面に粘着剤を
塗布することにより製造されている。しかし、このよう
な粘着テープでは、プラスチック基材を用いた粘着テー
プと比較して、引張り強度、端裂強度、伸び等が小さ
く、テープを剥がす際、テープが途中で切れたり、裂け
たりする不具合が発生していた。この現象は、塗装工程
時の強制加熱により粘着力が上昇し基材により大きな負
荷がかかるためと考えられる。[0003] Among them, those using a porous paper material such as Japanese paper as a base material are widely used because tapes can be cut by hand, workability is good, and they are relatively inexpensive. ing. Adhesive tapes made of this porous paper material are generally made by mixing beaten wood pulp with hemp and synthetic staple fibers to form a porous paper material, appropriately adjusting the strength and elongation of the paper material, impregnating and separating. It is manufactured by applying a pressure-sensitive adhesive to the surface after performing a mold treatment. However, with such an adhesive tape, the tensile strength, end tear strength, elongation, etc., are smaller than those of an adhesive tape using a plastic substrate, and when the tape is peeled off, the tape breaks or tears in the middle. Had occurred. This phenomenon is considered to be due to the fact that the adhesive force increases due to the forced heating during the coating process and a greater load is applied to the substrate.
【0004】[0004]
【発明が解決しようとする課題】従って、本発明の目的
は、多孔性基材を用いた粘着テープまたはシートであっ
ても、被着体から剥がす際に途中で切れたり裂けたりす
ることのない塗装用マスキングテープまたはシートを提
供することにある。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to prevent an adhesive tape or sheet using a porous substrate from being cut or torn midway when peeled from an adherend. An object of the present invention is to provide a masking tape or sheet for painting.
【0005】[0005]
【課題を解決するための手段】本発明者らは、前記目的
を達成するため、塗料吹き付け後の粘着力に着目して検
討を重ねた結果、塗料吹き付けにより粘着力が低下する
特性を有する粘着テープまたはシートを用いることによ
り、塗装工程後のテープまたはシートの剥離作業が円滑
化できるできることを見出し、本発明を完成するに至っ
た。Means for Solving the Problems In order to achieve the above object, the inventors of the present invention have repeatedly studied focusing on the adhesive force after spraying paint, and as a result, the adhesive having the property of reducing the adhesive force by spraying paint. The present inventors have found that the use of a tape or a sheet can facilitate the operation of peeling the tape or the sheet after the painting step, and have completed the present invention.
【0006】すなわち、本発明は、多孔性基材の一方の
面に粘着剤層を形成した塗装用マスキングテープまたは
シートであって、前記粘着剤層が水分散型粘着剤からな
り、かつ前記多孔性基材の透気度が10〜36000秒
/100mlであり、塗料吹き付けにより被着体貼り付
け粘着力が低下する特性を有する塗装用マスキングテー
プまたはシートを提供する。That is, the present invention relates to a coating masking tape or sheet having a pressure-sensitive adhesive layer formed on one surface of a porous substrate, wherein the pressure-sensitive adhesive layer comprises a water-dispersed pressure-sensitive adhesive, Provided is a masking tape or sheet for coating having a property that the air permeability of a conductive base material is 10 to 36000 seconds / 100 ml and the adhesive strength to adhere to an adherend is reduced by spraying a paint.
【0007】前記粘着剤層はアクリル系粘着剤で構成さ
れていてもよい。また、粘着剤のゲル分率は例えば30
重量%以上である。塗料吹き付け後における被着体貼り
付け粘着力は、例えば1.7〜4.4/18mmの範囲
である。The pressure-sensitive adhesive layer may be composed of an acrylic pressure-sensitive adhesive. The gel fraction of the adhesive is, for example, 30.
% By weight or more. The adherence to the adherend after spraying the paint is, for example, in the range of 1.7 to 4.4 / 18 mm.
【0008】[0008]
【発明の実施の形態】本発明において用いられる多孔性
基材は、後述する方法により測定される透気度が10〜
36000秒/100mlであることが必要である。前
記透気度は、好ましくは30〜35000秒/100m
l、さらに好ましくは50〜30000秒/10ml程
度である。前記透気度が10秒/100ml未満である
と水分散型粘着剤を多孔性基材に塗工する際、粘着剤溶
液が基材層を透過して基材の背面側へ移行する、所謂裏
抜け現象が起こり易くなり好ましくない。また透気度が
36000秒/100mlを超えると本発明の目的とす
る塗料吹き付けによる被着体貼り付け粘着力の低下効果
を発現する事ができず好ましくない。本発明において、
多孔性基材の透気度は、JIS P−8117に準じ
て、ガーレー標準型デンソメーター(B型)を使用して
測定された値である。BEST MODE FOR CARRYING OUT THE INVENTION The porous substrate used in the present invention has an air permeability of 10 to 10 as measured by the method described later.
It is necessary to be 36000 seconds / 100 ml. The air permeability is preferably 30 to 35000 sec / 100m
1, more preferably about 50 to 30,000 seconds / 10 ml. When the air permeability is less than 10 seconds / 100 ml, when applying the water-dispersed pressure-sensitive adhesive to a porous substrate, the pressure-sensitive adhesive solution passes through the substrate layer and moves to the back side of the substrate, so-called, A strikethrough phenomenon is likely to occur, which is not preferable. On the other hand, if the air permeability exceeds 36000 sec / 100 ml, the effect of lowering the adhesion to the adherend by spraying the paint, which is the object of the present invention, cannot be exhibited, which is not preferable. In the present invention,
The air permeability of the porous substrate is a value measured using a Gurley standard densometer (type B) according to JIS P-8117.
【0009】多孔性基材としては、上記特定範囲の透気
度を有するものであればその材質等は特に限定されず、
例えばクラフト紙、クレープ紙、和紙等の繊維状物質か
らなる多孔性紙材が挙げられる。中でも、汎用的な和紙
が好ましい。The material and the like of the porous substrate are not particularly limited as long as they have air permeability in the above specified range.
For example, a porous paper material made of a fibrous substance such as kraft paper, crepe paper, and Japanese paper may be used. Among them, general-purpose Japanese paper is preferable.
【0010】和紙は叩解された木材パルプ、あるいはこ
れに1種以上の合成短繊維を混抄したものが用いられ
る。合成短繊維の材料としては、例えば、ビニロン、ナ
イロン、ポリエステル、ポリプロピレン、ポリ塩化ビニ
ル等が挙げられる。As the Japanese paper, beaten wood pulp or one obtained by mixing one or more kinds of synthetic short fibers with the pulp is used. Examples of the material of the synthetic short fiber include vinylon, nylon, polyester, polypropylene, polyvinyl chloride and the like.
【0011】多孔性基材の透気度を上記特定の範囲に調
整するためには、例えば多孔性基材製造時における手段
としては、多孔性基材の坪量、厚み、抄紙方法、繊維密
度(繊維絡み合い)、繊維同士を接着させるバインダー
成分の種類や添加量等で調整する手段を採ることができ
る。また、多孔性基材製造後の後処理により透気度を本
発明の範囲に調整する手段としては、多孔性基材表面に
バックサイズ処理、背面処理、下塗り処理等の各種後処
理を行うことにより調整する手段がある。In order to adjust the air permeability of the porous substrate to the above specific range, for example, means for producing the porous substrate include the basis weight, thickness, papermaking method, fiber density, and the like of the porous substrate. (Fiber entanglement) and means for adjusting the type and amount of the binder component for bonding the fibers to each other can be employed. Further, as a means for adjusting the air permeability to the range of the present invention by a post-treatment after the production of the porous substrate, various post-treatments such as back sizing treatment, back surface treatment, and undercoating treatment are performed on the porous substrate surface. There is a means to adjust by.
【0012】多孔性基材の坪量は特に限定されないが、
通常20〜100g/m2、好ましくは25〜50g/
m2の範囲である。多孔性基材の厚みは使用目的などに
よって異なるが、強度、コシなどの点から40〜200
μmが好ましく、より好ましくは50〜100μmであ
る。Although the basis weight of the porous substrate is not particularly limited,
Usually 20 to 100 g / m 2 , preferably 25 to 50 g / m 2
m 2 . The thickness of the porous substrate varies depending on the purpose of use and the like.
μm is preferred, and more preferably 50 to 100 μm.
【0013】上記多孔性基材製造後の後処理により透気
度を調整する手段のうち、バックサイズ処理と背面処理
は、多孔性基材の粘着剤層形成面と反対側の面(粘着剤
層非形成面)に施される処理である。前記バックサイズ
処理に使用されるバックサイズ剤としては、酢酸ビニル
系樹脂、アクリル系樹脂、スチレン−ブタジエンゴム
(SBR)系樹脂等を用いることができる。また、背面
処理に使用される背面処理剤としては、長鎖アルキル系
剥離剤やシリコーン系剥離剤等を用いることができる。
一方、下塗り処理は、多孔性基材と粘着剤層との密着性
(投錨性)を向上させるために多孔性基材の粘着剤層形
成面側に設けられるものであり、該下塗り処理に用いる
下塗り剤として、アクリル系、ゴム系、ウレタン系、エ
ポキシ系等の樹脂を用いることができる。バックサイズ
処理や背面処理、下塗り処理は、多孔性基材表面に前記
処理剤溶液を塗布し、乾燥することにより行われる。こ
のとき処理剤の種類や塗布量、塗布方式等を調整するこ
とで、本発明において必要とされる透気度に調整され
る。なお、本発明において、多孔性基材に前記後処理が
行われた場合は、処理を行った後の多孔性基材が本発明
で必要とされる透気度を満足している必要がある。Among the means for adjusting the air permeability by the post-treatment after the production of the porous substrate, the back-size treatment and the back treatment are performed on the surface of the porous substrate opposite to the surface on which the pressure-sensitive adhesive layer is formed (pressure-sensitive adhesive). This is a process performed on the surface on which the layer is not formed. As the back sizing agent used in the back sizing treatment, a vinyl acetate resin, an acrylic resin, a styrene-butadiene rubber (SBR) resin, or the like can be used. Further, as a back surface treatment agent used for the back surface treatment, a long-chain alkyl-based release agent, a silicone-based release agent, or the like can be used.
On the other hand, the undercoating treatment is provided on the side of the porous substrate on which the pressure-sensitive adhesive layer is formed to improve the adhesion (anchoring property) between the porous substrate and the pressure-sensitive adhesive layer, and is used for the undercoating treatment. Acrylic, rubber, urethane, epoxy, and other resins can be used as the undercoating agent. The back sizing treatment, the back surface treatment, and the undercoating treatment are performed by applying the treatment agent solution to the surface of the porous base material and drying. At this time, the air permeability required in the present invention is adjusted by adjusting the type, application amount, application method and the like of the treatment agent. In the present invention, when the post-treatment is performed on the porous substrate, the porous substrate after the treatment needs to satisfy the air permeability required in the present invention. .
【0014】本発明の塗装用マスキングテープまたはシ
ートは、上記多孔性基材の片面に水分散型粘着剤層が設
けられている。該粘着剤層を構成する粘着剤は水分散型
あれば特に限定はなく、例えば、アクリル系、ゴム系等
が挙げられる。その中でも、アクリル系粘着剤が、耐熱
性、耐候性に優れている点で好ましい。In the masking tape or sheet for coating of the present invention, a water-dispersed pressure-sensitive adhesive layer is provided on one surface of the porous substrate. The pressure-sensitive adhesive constituting the pressure-sensitive adhesive layer is not particularly limited as long as it is a water-dispersed type, and examples thereof include acrylic and rubber-based pressure-sensitive adhesives. Among them, acrylic pressure-sensitive adhesives are preferred because they are excellent in heat resistance and weather resistance.
【0015】アクリル系粘着剤は、アクリル酸エステル
共重合体からなる場合が多い。アクリル酸エステル共重
合体を構成する主モノマーは、通常、アルキル基の炭素
数が4〜12の(メタ)アクリル酸アルキルエステルで
あり、具体的にはアクリル酸ブチル、アクリル酸2−エ
チルヘキシル、アクリル酸イソノニル、アクリル酸ラウ
リル、メタクリル酸ブチル、メタクリル酸ラウリルなど
が挙げられる。これらのアルキルエステルは1種または
2種以上用いられる。これらのアルキルエステルは、単
量体混合物中、通常、50重量%以上の割合で用いられ
る。これより少ないと良好な粘着性が得られにくくな
る。The acrylic pressure-sensitive adhesive is often made of an acrylic ester copolymer. The main monomer constituting the acrylate copolymer is usually an alkyl (meth) acrylate having an alkyl group of 4 to 12 carbon atoms, and specifically, butyl acrylate, 2-ethylhexyl acrylate, acrylic Isononyl acrylate, lauryl acrylate, butyl methacrylate, lauryl methacrylate and the like. One or more of these alkyl esters are used. These alkyl esters are generally used in a proportion of 50% by weight or more in the monomer mixture. If the amount is less than this, it becomes difficult to obtain good tackiness.
【0016】前記アクリル酸エステル共重合体では、上
記主モノマーとともに、被着体への接着性を向上させる
ため、官能性モノマーを共重合させることができる。官
能性モノマーとしては、カルボキシル基含有モノマー、
水酸基含有モノマー、エポキシ基含有モノマー、アミノ
基含有モノマー、メルカプト基含有モノマー、イソシア
ネート基含有モノマーなどが挙げられ、より具体的に
は、アクリル酸、メタクリル酸、イタコン酸、無水マレ
イン酸、クロトン酸、マレイン酸、フマル酸、(メタ)
アクリル酸ヒドロキシアルキル、グリセリンジメタクリ
レート、(メタ)アクリル酸グリシジル、メタクリル酸
メチルグリシジル、(メタ)アクリル酸アミノエチル、
2−メタクリロイルオキシエチルイソシアネートなどが
あり、連鎖移動剤末端のメルカプト基などを官能基とし
て導入することも可能である。これらの官能性モノマー
の中でも、反応性および汎用性の点でカルボキシル基含
有モノマーが好ましく、さらに好適にはアクリル酸、メ
タクリル酸が挙げられる。In the acrylate copolymer, a functional monomer can be copolymerized with the above-mentioned main monomer in order to improve adhesion to an adherend. As the functional monomer, a carboxyl group-containing monomer,
Examples include a hydroxyl group-containing monomer, an epoxy group-containing monomer, an amino group-containing monomer, a mercapto group-containing monomer, an isocyanate group-containing monomer, and more specifically, acrylic acid, methacrylic acid, itaconic acid, maleic anhydride, crotonic acid, Maleic acid, fumaric acid, (meth)
Hydroxyalkyl acrylate, glycerin dimethacrylate, glycidyl (meth) acrylate, methyl glycidyl methacrylate, aminoethyl (meth) acrylate,
There are 2-methacryloyloxyethyl isocyanate and the like, and it is also possible to introduce a mercapto group at the terminal of the chain transfer agent as a functional group. Among these functional monomers, a carboxyl group-containing monomer is preferable in terms of reactivity and versatility, and more preferably, acrylic acid and methacrylic acid.
【0017】上記官能性モノマー単位の含有量は、アク
リル酸エステル共重合体100重量部中、1〜10重量
部程度、好ましくは1〜4重量部程度である。官能性モ
ノマー単位の含有量が1重量部より少ないと良好な接着
性が得られにくく、10重量部より多いと巻き戻し力が
大きくなりやすい。The content of the functional monomer unit is about 1 to 10 parts by weight, preferably about 1 to 4 parts by weight, based on 100 parts by weight of the acrylate copolymer. When the content of the functional monomer unit is less than 1 part by weight, it is difficult to obtain good adhesion, and when the content is more than 10 parts by weight, the unwinding force tends to increase.
【0018】また、前記アクリル酸エステル共重合体で
は、上記主モノマー及び官能性モノマー以外に、必要に
応じて、他の共重合性モノマーを構成単量体として含ん
でいてもよい。このような共重合性モノマーには、例え
ば、メタクリル酸メチル、アクリル酸エチル、アクリル
酸イソプロピルなどのアルキル基の炭素数が1〜3の
(メタ)アクリル酸アルキルエステル;メタクリル酸ト
リデシル、(メタ)アクリル酸ステアリルなどのアルキ
ル基の炭素数が13〜18の(メタ)アクリル酸アルキ
ルエステル;トリエチレングリコールジアクリレート、
エチレングリコールジメタクリレート、トリメチロール
プロパントリ(メタ)アクリレートなどの多官能モノマ
ー;酢酸ビニル、スチレン、(メタ)アクリロニトリ
ル、n−ビニルピロリドン、(メタ)アクリロイルモル
ホリン、シクロヘキシルマレイミド、イソプロピルマレ
イミド、(メタ)アクリルアミドなどが含まれる。The acrylate copolymer may contain, as necessary, other copolymerizable monomers as constituent monomers in addition to the main monomer and the functional monomer. Such copolymerizable monomers include, for example, alkyl (meth) acrylates having an alkyl group having 1 to 3 carbon atoms, such as methyl methacrylate, ethyl acrylate, and isopropyl acrylate; tridecyl methacrylate, (meth) Alkyl (meth) acrylate having 13 to 18 carbon atoms in the alkyl group such as stearyl acrylate; triethylene glycol diacrylate;
Polyfunctional monomers such as ethylene glycol dimethacrylate and trimethylolpropane tri (meth) acrylate; vinyl acetate, styrene, (meth) acrylonitrile, n-vinylpyrrolidone, (meth) acryloylmorpholine, cyclohexylmaleimide, isopropylmaleimide, and (meth) acrylamide And so on.
【0019】前記アクリル酸エステル共重合体は、上記
単量体混合物を通常の重合方法、例えば乳化重合法を用
い、一般的な一括重合、連続滴下重合、分割滴下重合な
どにより合成することができる。重合温度は、例えば3
0〜80℃の範囲である。The acrylate copolymer can be synthesized from the above monomer mixture by a general polymerization method, for example, an emulsion polymerization method, by general batch polymerization, continuous drop polymerization, divided drop polymerization, or the like. . The polymerization temperature is, for example, 3
The range is from 0 to 80 ° C.
【0020】重合開始剤としては、例えば、2,2′−
アゾビスイソブチロニトリル、2,2′−アゾビス(2
−アミジノプロパン)ジヒドロクロライド、2,2′−
アゾビス(N,N′−ジメチレンイソブチルアミジン)
などのアゾ系重合開始剤;過硫酸カリウム、過硫酸アン
モニウムなどの過硫酸塩;ベンゾイルパーオキサイド、
t−ブチルハイドロパーオキサイドなどの過酸化物系重
合開始剤;過硫酸塩と亜硫酸水素ナトリウムなどのレド
ックス系重合開始剤などが挙げられる。Examples of the polymerization initiator include, for example, 2,2'-
Azobisisobutyronitrile, 2,2'-azobis (2
-Amidinopropane) dihydrochloride, 2,2'-
Azobis (N, N'-dimethyleneisobutylamidine)
Azo polymerization initiators such as; persulfates such as potassium persulfate and ammonium persulfate; benzoyl peroxide;
peroxide polymerization initiators such as t-butyl hydroperoxide; and redox polymerization initiators such as persulfate and sodium bisulfite.
【0021】乳化剤としては、ラウリル硫酸ナトリウ
ム、ラウリル硫酸アンモニウム、ドデシルベンゼンスル
ホン酸ナトリウム、ポリオキシエチレンアルキルエーテ
ル硫酸ナトリウム、ポリオキシエチレンアルキルフェニ
ルエーテル硫酸ナトリウムなどのアニオン系乳化剤;ポ
リオキシエチレンアルキルエーテル、ポリオキシエチレ
ンアルキルフェニルエーテルなどのノニオン系乳化剤な
どが挙げられ、これらの中から、1種または2種以上が
用いられる。アニオン系およびノニオン系のいずれの場
合も、プロペニル基などを導入したラジカル重合性の乳
化剤を用いてもよい。これら乳化剤は、粘着剤固形分1
00重量部あたり0.3〜10重量部、好ましくは0.
5〜9重量部の範囲で配合するのが好ましい。乳化剤の
配合量が0.3重量部未満であると重合安定性が悪くな
る場合があり、また乳化剤の配合量が10重量部よりも
多くなると、テープを被着体から剥がした際、被着体表
面に糊残りや汚染を起こしたりする場合がある。また乳
化剤はその配合量の全てを重合時に使用する必要はな
く、一部を重合後の粘着剤溶液に後添加しても良い。Examples of the emulsifier include anionic emulsifiers such as sodium lauryl sulfate, ammonium lauryl sulfate, sodium dodecylbenzene sulfonate, sodium polyoxyethylene alkyl ether sulfate, sodium polyoxyethylene alkyl phenyl ether sulfate; polyoxyethylene alkyl ether, polyoxyethylene Nonionic emulsifiers such as ethylene alkyl phenyl ether and the like can be mentioned, and one or more of these are used. In both the anionic and nonionic types, a radical polymerizable emulsifier into which a propenyl group or the like is introduced may be used. These emulsifiers have an adhesive solid content of 1
0.3 to 10 parts by weight, preferably 0.1 to 100 parts by weight.
It is preferred to mix in the range of 5 to 9 parts by weight. If the compounding amount of the emulsifier is less than 0.3 parts by weight, the polymerization stability may be deteriorated. Adhesive residue or contamination may occur on the body surface. It is not necessary to use the entire amount of the emulsifier during the polymerization, and a part of the emulsifier may be added later to the pressure-sensitive adhesive solution after the polymerization.
【0022】本発明では、塗装工程での加熱による接着
力の上昇を抑えるため、粘着剤層を構成する粘着剤のゲ
ル分率が30重量%以上であることが好ましく、より好
ましくは、40〜95重量%程度である。ゲル分率が3
0重量%未満であると、接着力が上昇しやすく、また剥
離時に糊残りしやすい。また、ゲル分率が95重量%を
超えると、接着力が低下し作業中に剥がれやすくなる。
なお、ここでいうゲル分率とは、乾燥重量W1(g)の
粘着剤(ポリマー)をトルエン中に室温(例えば20
℃)で7日間浸漬した後、取り出して乾燥したときの重
量をW2(g)としたとき、下記式により算出される値
を意味する。In the present invention, the gel fraction of the pressure-sensitive adhesive constituting the pressure-sensitive adhesive layer is preferably 30% by weight or more, more preferably 40 to 40%, in order to suppress an increase in adhesive force due to heating in the coating step. It is about 95% by weight. Gel fraction 3
If the amount is less than 0% by weight, the adhesive strength tends to increase, and the adhesive tends to remain when peeled. On the other hand, when the gel fraction exceeds 95% by weight, the adhesive strength is reduced, and the gel tends to peel off during the operation.
Here, the gel fraction refers to a pressure-sensitive adhesive (polymer) having a dry weight of W 1 (g) in toluene at room temperature (for example, 20 g).
C.) for 7 days, taken out and dried, and the weight calculated from the following formula is defined as W 2 (g).
【0023】 ゲル分率(重量%)=(W2/W1)×100 より具体的には、ゲル分率は以下の方法で求められる。
すなわち、剥離処理したフィルム上に粘着剤の水分散液
を塗布し、130℃で5分間乾燥し、得られたポリマー
を一定量採取する(W1g)。次に、このポリマーを孔
径0.2μmのテフロン膜で包み、凧糸で口を縛り、ト
ルエン中で7日間室温で放置して、ゾル分を溶出させ、
ゲル分の含まれたテフロン膜を130℃で2時間乾燥し
て、ゲル分の重量を測定する(W2g)。上記W1とW2
とを上記の式に代入することによりゲル分率が求められ
る。Gel fraction (% by weight) = (W 2 / W 1 ) × 100 More specifically, the gel fraction is determined by the following method.
That is, an aqueous dispersion of the pressure-sensitive adhesive is applied onto the release-treated film, dried at 130 ° C. for 5 minutes, and a certain amount of the obtained polymer is collected (W 1 g). Next, the polymer was wrapped with a Teflon membrane having a pore size of 0.2 μm, the mouth was tied up with a kite string, and left at room temperature in toluene for 7 days to elute the sol component.
The Teflon film containing the gel is dried at 130 ° C. for 2 hours, and the weight of the gel is measured (W 2 g). The above W 1 and W 2
Is substituted into the above equation to determine the gel fraction.
【0024】粘着剤のゲル分率は、例えば、粘着剤を構
成するモノマーの種類や比率、重合開始剤の種類や量、
反応温度、架橋剤の種類や量などの重合条件等を適宜選
択するすることにより調整できる。The gel fraction of the pressure-sensitive adhesive is determined, for example, by the type and ratio of the monomers constituting the pressure-sensitive adhesive, the type and amount of the polymerization initiator,
It can be adjusted by appropriately selecting the polymerization conditions such as the reaction temperature and the type and amount of the crosslinking agent.
【0025】粘着剤層には、必要に応じて、各種添加
剤、例えば、粘着付与剤、架橋剤、可塑剤、軟化剤、充
填剤、顔料、染料、老化防止剤、安定剤などが含まれて
いてもよい。The pressure-sensitive adhesive layer contains various additives as required, for example, a tackifier, a cross-linking agent, a plasticizer, a softener, a filler, a pigment, a dye, an antioxidant, and a stabilizer. May be.
【0026】前記粘着剤層の厚さは、取扱性等を損なわ
ない範囲で適宜選択できるが、好ましくは10〜70μ
m程度、さらに好ましくは15〜40μm程度である。The thickness of the pressure-sensitive adhesive layer can be appropriately selected within a range that does not impair the handleability and the like.
m, more preferably about 15 to 40 μm.
【0027】本発明の塗装用マスキングテープ又はシー
トは、通常の粘着テープの製造方法に従って製造でき
る。例えば、多孔性基材の一方の面に下塗り処理、他方
の面にバックサイズ処理及び/又は背面処理を行い、前
記下塗り処理を施した面に、粘着剤及び必要に応じて前
記添加剤を含む水分散液を直接塗工、乾燥し、必要に応
じて適宜の大きさ又は幅に裁断することにより製造でき
る。また、前記粘着剤等を含む水分散液をセパレータ上
に塗工し、乾燥した後、上記基材の一方の面に転写する
方法により製造することもできる。なお、前記粘着剤等
を含む水分散液は、例えば、乳化重合により得られた粘
着剤組成物に必要に応じて前記添加剤を加えることによ
り調製できる。また、乳化重合以外の重合法で得た粘着
剤(ポリマー)と必要に応じて前記添加剤とを乳化剤を
用いて水に分散させることにより前記水分散液を調製す
ることもできる。The coating masking tape or sheet of the present invention can be produced according to a usual method for producing an adhesive tape. For example, an undercoating treatment is performed on one surface of the porous substrate, a backsize treatment and / or a back surface treatment is performed on the other surface, and the surface on which the undercoating treatment has been performed contains an adhesive and, if necessary, the additive. It can be produced by directly applying the aqueous dispersion, drying it, and cutting it into an appropriate size or width as needed. Further, it can also be produced by a method in which an aqueous dispersion containing the pressure-sensitive adhesive or the like is coated on a separator, dried, and then transferred to one surface of the substrate. The aqueous dispersion containing the pressure-sensitive adhesive or the like can be prepared, for example, by adding the above-mentioned additives to the pressure-sensitive adhesive composition obtained by emulsion polymerization, if necessary. The aqueous dispersion can also be prepared by dispersing the pressure-sensitive adhesive (polymer) obtained by a polymerization method other than emulsion polymerization and, if necessary, the above-mentioned additive in water using an emulsifier.
【0028】本発明の重要な特徴は、塗料吹き付けによ
り被着体貼り付け粘着力が低下する特性、すなわち、塗
料吹き付けを行ったときの被着体貼り付け粘着力が塗料
吹き付けを行わない場合の被着体貼り付け粘着力より小
さいという特性を有している点にある。例えば、本発明
の塗装用マスキングテープまたはシートでは、被着体に
貼り合わせて塗料を吹き付け、所定条件(例えば100
℃×1時間)で加熱処理したときの粘着力が、被着体に
貼り合わせて、塗料を吹き付けることなく、前記と同条
件で加熱処理したときの粘着力よりも小さい。このよう
な特性は、特定の透気度を有する多孔性基材の表面に水
分散型の粘着剤層を設けることにより得られるものであ
るが、そのメカニズムの詳細は定かではない。本発明の
塗装用マスキングテープまたはシートは上記の特性を有
しているため、塗装工程後の再剥離に際してテープまた
はシートが切れたり裂けたりすることがなく、作業を円
滑に行うことができる。An important feature of the present invention is the property that the adhesion to the adherend is reduced by spraying the paint, that is, the adhesive strength to adhere to the adherend when the paint is sprayed is reduced when the paint is not sprayed. It is characterized in that it has a characteristic of being smaller than the adhesive strength for attaching to an adherend. For example, in the masking tape or sheet for coating of the present invention, a paint is sprayed while being adhered to an adherend and a predetermined condition (for example, 100
C. × 1 hour) is smaller than the adhesive strength when heat-treated under the same conditions as described above without sticking to the adherend and spraying paint. Such characteristics can be obtained by providing a water-dispersed pressure-sensitive adhesive layer on the surface of a porous substrate having a specific air permeability, but the details of the mechanism are not clear. Since the masking tape or sheet for coating of the present invention has the above-mentioned characteristics, the tape or sheet is not cut or torn at the time of re-peeling after the coating step, and the work can be performed smoothly.
【0029】通常、被着体に良く接着したり、良く追従
したりする為にはある程度の粘着力が必要となる。接着
させることのみを考えた場合には、粘着力の絶対値は大
きいに越したことはないが、基材の強度等とのバランス
の関係から、粘着力がある一定の範囲に入るように設計
するのが好ましい。Normally, a certain amount of adhesive force is required to adhere well to an adherend or to follow it well. When only bonding is considered, the absolute value of the adhesive force does not exceed a large value, but it is designed so that the adhesive force is within a certain range due to the balance with the strength of the base material etc. Is preferred.
【0030】本発明の塗装用マスキングテープまたはシ
ートの初期粘着力は1.5N/18mm以上であるのが
好ましい。初期粘着力が1.5N/18mmより小さい
とテープまたはシートが被着体から剥がれたり、塗料の
ミストがテープやシートのエッジ(端)から浸入しやす
くなる。なお、本発明において初期粘着力とは、被着体
としてポリエステル−メラミン系塗料を塗布、乾燥した
メラミン塗装板に、18mm幅に切断した粘着テープを
2kgローラーを1往復させて貼り合わせ、100℃で
1時間加熱した後、室温にて放冷後、引張試験機を使用
して、引張速度300mm/分、180°ピール試験を
行って得られる剥離力(N/18mm)の値である。The initial adhesive strength of the coating masking tape or sheet of the present invention is preferably 1.5 N / 18 mm or more. If the initial adhesive strength is less than 1.5 N / 18 mm, the tape or sheet is likely to be peeled off from the adherend, and the mist of the paint is likely to penetrate from the edge of the tape or sheet. In the present invention, the initial adhesive strength refers to a polyester-melamine-based paint applied as an adherend, a pressure-sensitive adhesive tape cut to a width of 18 mm, adhered to a dried melamine coated plate by reciprocating a 2 kg roller once at 100 ° C. After heating for 1 hour at room temperature, and then allowed to cool at room temperature, a peeling force (N / 18 mm) obtained by performing a 180 ° peel test at a tensile speed of 300 mm / min using a tensile tester.
【0031】また、再剥離時の粘着力(塗料吹き付け後
の被着体貼り付け粘着力)は、基材の破れ防止のために
は、9.8N/18mm以下であるのが好ましい。ま
た、作業性の観点から、再剥離時の粘着力は、さらに好
ましくは4.9N/18mm以下、特に好ましくは1.
7〜4.4N/18mmの範囲である。再剥離時の粘着
力を上記範囲に調整することにより、手剥がし、機械剥
がし等の広範囲の作業条件下での作業性を確保すること
が可能となる。なお、本発明において再剥離時の粘着力
(塗料吹き付け後の被着体貼り付け粘着力)とは、被着
体としてポリエステル−メラミン系塗料を塗布、乾燥し
たメラミン塗装板に、18mm幅に切断した粘着テープ
を2kgローラーを1往復させて貼り合せた後、粘着テ
ープ上に塗料を吹き付け、その後100℃で1時間加熱
した後、室温にて放冷後、引張試験機を使用して、引張
速度300mm/分、180°ピール試験を行って得ら
れる剥離力(N/18mm)の値である。Further, the adhesive strength at the time of re-peeling (adhesive strength to adhere to an adherend after spraying paint) is preferably 9.8 N / 18 mm or less in order to prevent the substrate from being broken. Further, from the viewpoint of workability, the adhesive strength at the time of re-peeling is more preferably 4.9 N / 18 mm or less, and particularly preferably 1.
The range is 7 to 4.4 N / 18 mm. By adjusting the adhesive strength at the time of re-peeling within the above range, it is possible to secure workability under a wide range of working conditions such as manual peeling and mechanical peeling. In the present invention, the adhesive strength at the time of re-peeling (adhesive adherence after paint spraying) refers to a polyester-melamine-based paint applied as an adherend, cut into a dried melamine-coated plate to a width of 18 mm. After the adhesive tape was adhered by reciprocating a 2 kg roller once, the paint was sprayed on the adhesive tape, heated at 100 ° C. for 1 hour, allowed to cool at room temperature, and then pulled using a tensile tester. It is a value of a peeling force (N / 18 mm) obtained by performing a 180 ° peel test at a speed of 300 mm / min.
【0032】上記粘着力は、例えば、粘着剤を構成する
モノマー成分の種類や割合、重合開始剤の種類や量、重
合温度や重合時間、架橋剤の種類や量を適宜選択するこ
とにより調整できる。The adhesive strength can be adjusted by appropriately selecting, for example, the type and ratio of the monomer components constituting the adhesive, the type and amount of the polymerization initiator, the polymerization temperature and the polymerization time, and the type and amount of the crosslinking agent. .
【0033】本発明のマスキングテープまたはシート
は、水性塗料を用いた塗装、油性塗料を用いた塗装の何
れにも適用できる。The masking tape or sheet of the present invention can be applied to both coating using a water-based coating and coating using an oil-based coating.
【0034】[0034]
【発明の効果】本発明によれば、粘着剤層が水分散型粘
着剤からなり、かつ特定の透気度を有する多孔性基材を
使用し、塗料吹き付けにより被着体貼り付け粘着力が低
下する特性を有しているので、被着体表面に確実に追従
させて貼付できるとともに、多孔性基材を使用している
にもかかわらず、剥離時には、切れたり裂けたりするこ
となくきれいに剥がすことができる。According to the present invention, the pressure-sensitive adhesive layer is made of a water-dispersed pressure-sensitive adhesive and uses a porous base material having a specific air permeability, and the adhesion to the adherend is reduced by spraying paint. As it has the property of deteriorating, it can be adhered to the surface of the adherend without fail, and even when using a porous substrate, it can be peeled off cleanly without breaking or tearing when peeling be able to.
【0035】[0035]
【実施例】以下に、本発明を実施例に基づいてより詳細
に説明するが、本発明はこれらの実施例により何ら限定
されるものではない。なお、以下の例において、部とあ
るのは重量部を意味する。EXAMPLES The present invention will be described below in more detail with reference to examples, but the present invention is not limited to these examples. In the following examples, “parts” means “parts by weight”.
【0036】実施例1 温度計、撹拌機、窒素導入管および還流冷却管を備えた
反応器に水50部および過硫酸カリウム0.2部を仕込
み、攪拌下1時間窒素置換した。ここに、アクリル酸2
−エチルヘキシル97部、アクリル酸3部、ラウリル硫
酸ナトリウム2部、ポリオキシエチレンラウリルエーテ
ル1部を水150部で乳化したものを70℃で3時間か
けて滴下し、70℃で2時間熟成を行った。その後、室
温まで冷却し、10%のアンモニア水で中和して共重合
体エマルションを得た。この共重合体エマルションの固
形分100部に対して、エポキシ系架橋剤0.1部を加
えて、よく混合することにより、粘着剤水分散液を調製
した。この粘着剤のゲル分率は55重量%であった。坪
量30g/m2の和紙の片面に、アクリル系バックサイ
ズ剤(商品名:AE318、日本合成ゴム(株)製)を
塗布し、130℃で3分間乾燥させ、塗布量が10g/
m2のバックサイズ層を形成した。このバックサイズ処
理を行った多孔性基材の透気度は50秒/100mlで
あった。上記粘着剤水分散液を、バックサイズ層を形成
した和紙の反対面に塗布し、熱風乾燥機中130℃で3
分間乾燥処理して、厚さが20μmの粘着剤層を形成
し、本発明の塗装用マスキングテープ(粘着テープA)
を作製した。Example 1 A reactor equipped with a thermometer, a stirrer, a nitrogen inlet tube and a reflux condenser was charged with 50 parts of water and 0.2 parts of potassium persulfate, and was purged with nitrogen for 1 hour with stirring. Here, acrylic acid 2
A mixture of 97 parts of ethylhexyl, 3 parts of acrylic acid, 2 parts of sodium lauryl sulfate and 1 part of polyoxyethylene lauryl ether emulsified with 150 parts of water was added dropwise at 70 ° C. over 3 hours, followed by aging at 70 ° C. for 2 hours. Was. Thereafter, the mixture was cooled to room temperature and neutralized with 10% aqueous ammonia to obtain a copolymer emulsion. 0.1 part of an epoxy-based crosslinking agent was added to 100 parts of the solid content of the copolymer emulsion and mixed well to prepare an aqueous dispersion of an adhesive. The gel fraction of this pressure-sensitive adhesive was 55% by weight. An acrylic backsize agent (trade name: AE318, manufactured by Nippon Synthetic Rubber Co., Ltd.) is applied to one side of Japanese paper having a basis weight of 30 g / m 2 , and dried at 130 ° C. for 3 minutes.
to form a backsize layer of m 2. The air permeability of the porous substrate subjected to this backsize treatment was 50 seconds / 100 ml. The above aqueous dispersion of the pressure-sensitive adhesive was applied to the opposite side of the Japanese paper on which the back size layer was formed, and was applied in a hot air dryer at 130 ° C. for 3 hours.
Drying treatment for 20 minutes to form an adhesive layer having a thickness of 20 μm, and a masking tape for coating of the present invention (adhesive tape A)
Was prepared.
【0037】実施例2 実施例1で使用した和紙に実施例1と同様の条件でバッ
クサイズ処理を行った後、バックサイズ層と反対側の面
に、下塗り剤として水系ウレタン樹脂(商品名:アデカ
ボンタイターHUX−260、旭電化工業(株)製)を
塗布し、130℃で3分間乾燥させ、塗布量5g/m2
の下塗り層を形成した。このバックサイズ処理及び下塗
り処理を行った多孔性基材の透気度は30000秒/1
00mlであった。この多孔性基材の下塗り層側に実施
例1と同様の粘着剤を塗布し、熱風乾燥機中130℃で
3分間乾燥処理して、厚さが20μmの粘着剤層を形成
し、本発明の塗装用マスキングテープ(粘着テープB)
を作製した。Example 2 After the Japanese paper used in Example 1 was subjected to a backsize treatment under the same conditions as in Example 1, an aqueous urethane resin (trade name: Adecabon Titer HUX-260, manufactured by Asahi Denka Kogyo Co., Ltd.), dried at 130 ° C. for 3 minutes, and coated at 5 g / m 2.
Undercoat layer was formed. The air permeability of the porous substrate that has been subjected to the backsize treatment and the undercoat treatment is 30,000 seconds / 1.
It was 00 ml. The same adhesive as in Example 1 was applied to the undercoat layer side of the porous substrate, and dried in a hot air drier at 130 ° C. for 3 minutes to form an adhesive layer having a thickness of 20 μm. Masking Tape for Painting (Adhesive Tape B)
Was prepared.
【0038】比較例1 トルエンに溶解した天然ゴム系粘着剤100部にロジン
系タッキファイヤー20部を添加した粘着剤溶液を、実
施例1と同様にバックサイズ処理した多孔性基材(透気
度50秒/100ml)に塗布し、熱風乾燥機中130
℃で3分間乾燥処理して、厚さが20μmの粘着剤層を
形成し、塗装用マスキングテープ(粘着テープC)を作
製した。この粘着剤のゲル分率は5重量%であった。Comparative Example 1 A porous substrate (back air permeability) obtained by back-sizing an adhesive solution obtained by adding 20 parts of a rosin-based tackifier to 100 parts of a natural rubber-based adhesive dissolved in toluene as in Example 1 50 seconds / 100 ml) and put in a hot air drier
The coating was dried at 3 ° C. for 3 minutes to form an adhesive layer having a thickness of 20 μm, and a masking tape for coating (adhesive tape C) was produced. The gel fraction of this pressure-sensitive adhesive was 5% by weight.
【0039】比較例2 アクリル系バックサイズ剤(商品名:AE318、日本
合成ゴム(株)製)の塗布量を2g/m2としてバック
サイズ層を形成して多孔性基材(透気度9秒/100m
l)を作製した以外は、実施例1と同様にして塗装用マ
スキングテープ(粘着テープD)を作製した。なお、こ
の粘着テープは、多孔性基材に水分散型粘着剤を塗布し
た際、粘着剤が多孔性基材を透過して背面(バックサイ
ズ層形成面)へ裏抜けしてしまった。Comparative Example 2 An acrylic backsize agent (trade name: AE318, manufactured by Nippon Synthetic Rubber Co., Ltd.) was applied at a coating amount of 2 g / m 2 to form a backsize layer to form a porous substrate (air permeability 9). Sec / 100m
A masking tape for coating (adhesive tape D) was produced in the same manner as in Example 1 except that l) was produced. In this pressure-sensitive adhesive tape, when the water-dispersed pressure-sensitive adhesive was applied to the porous base material, the pressure-sensitive adhesive penetrated the porous base material and slipped through to the back surface (the surface on which the back size layer was formed).
【0040】比較例3 アクリル系バックサイズ剤(商品名:AE318、日本
合成ゴム(株)製)の塗布量を10g/m2としてバッ
クサイズ層を形成し、さらに、下塗り剤(アデカボンタ
イターHUX−260、旭電化工業(株)製)の塗布量
を10g/m2として下塗り層を形成して多孔性基材を
作製した以外は、実施例2と同様にして塗装用マスキン
グテープ(粘着テープE)を作製した。なお、前記多孔
性基材の透気度は、38000秒/100mlであっ
た。COMPARATIVE EXAMPLE 3 An acrylic backsize agent (trade name: AE318, manufactured by Nippon Synthetic Rubber Co., Ltd.) was applied at a coating amount of 10 g / m 2 to form a backsize layer, and an undercoating agent (Adekabon Titer HUX) was further formed. -260, manufactured by Asahi Denka Kogyo Co., Ltd.) with a coating amount of 10 g / m 2 to form an undercoat layer to produce a porous base material, except that a porous masking tape was prepared in the same manner as in Example 2. E) was prepared. The air permeability of the porous substrate was 38000 sec / 100 ml.
【0041】実験例1 18mm幅に切断した粘着テープAをメラミン塗装板に
2kgローラーで1往復して貼り合わせ、100℃で1
時間加熱し、放冷後、180°ピール試験を行い(引張
速度:300mm/分)、剥離力(N/18mm)を測
定した。また、18mm幅に切断した粘着テープAをメ
ラミン塗装板に2kgローラーで1往復して貼り合わ
せ、100℃で1時間加熱し、放冷後、高速剥離試験機
(引張速度:30m/分)を用いてテープを剥離し、テ
ープの裂け性を目視観察し、テープが裂けなかった場合
を「○」、裂けた場合を「×」と評価した。Experimental Example 1 An adhesive tape A cut to an 18 mm width was adhered to a melamine coated plate by reciprocating once with a 2 kg roller.
After heating for a period of time and cooling, a 180 ° peel test was performed (tensile speed: 300 mm / min), and the peeling force (N / 18 mm) was measured. The adhesive tape A cut to a width of 18 mm was adhered to a melamine coated plate by reciprocating with a 2 kg roller once, heated at 100 ° C. for 1 hour, allowed to cool, and then subjected to a high-speed peeling tester (tensile speed: 30 m / min). The tape was peeled off, and the tearability of the tape was visually observed. The case where the tape did not tear was evaluated as “「 ”, and the case where the tape was torn was evaluated as“ X ”.
【0042】実験例2 粘着テープAをメラミン塗装板に貼り合わせた後、水性
塗料を吹き付け、その後に100℃で1時間加熱した以
外は実験例1と同様にして、剥離力及び裂け性を測定、
評価した。Experimental Example 2 Peeling force and tearing property were measured in the same manner as in Experimental Example 1 except that the adhesive tape A was adhered to a melamine coated plate, sprayed with an aqueous paint, and then heated at 100 ° C. for 1 hour. ,
evaluated.
【0043】実験例3 粘着テープAをメラミン塗装板に貼り合わせた後、油性
塗料を吹き付け、その後に100℃で1時間加熱した以
外は実験例1と同様にして、剥離力及び裂け性を測定、
評価した。Experimental Example 3 The peeling force and tearing property were measured in the same manner as in Experimental Example 1 except that the adhesive tape A was bonded to the melamine coated plate, then the oil-based paint was sprayed, and then heated at 100 ° C. for 1 hour. ,
evaluated.
【0044】実験例4 粘着テープAに代えて粘着テープBを用いた以外は実験
例1と同様にして、剥離力及び裂け性を測定、評価し
た。Experimental Example 4 The peeling force and tearing property were measured and evaluated in the same manner as in Experimental Example 1 except that the adhesive tape B was used instead of the adhesive tape A.
【0045】実験例5 粘着テープAに代えて粘着テープBを用いた以外は実験
例2と同様にして、剥離力及び裂け性を測定、評価し
た。Experimental Example 5 The peeling force and tearing property were measured and evaluated in the same manner as in Experimental Example 2 except that the adhesive tape B was used instead of the adhesive tape A.
【0046】実験例6 粘着テープAに代えて粘着テープBを用いた以外は実験
例3と同様にして、剥離力及び裂け性を測定、評価し
た。Experimental Example 6 The peeling force and tearability were measured and evaluated in the same manner as in Experimental Example 3 except that the adhesive tape B was used instead of the adhesive tape A.
【0047】実験例7 粘着テープAに代えて粘着テープCを用いた以外は実験
例1と同様にして、剥離力及び裂け性を測定、評価し
た。Experimental Example 7 The peeling force and tearing property were measured and evaluated in the same manner as in Experimental Example 1 except that the adhesive tape C was used instead of the adhesive tape A.
【0048】実験例8 粘着テープAに代えて粘着テープCを用いた以外は実験
例2と同様にして、剥離力及び裂け性を測定、評価し
た。Experimental Example 8 The peeling force and tearability were measured and evaluated in the same manner as in Experimental Example 2 except that the adhesive tape A was replaced with the adhesive tape C.
【0049】実験例9 粘着テープAに代えて粘着テープCを用いた以外は実験
例3と同様にして、剥離力及び裂け性を測定、評価し
た。Experimental Example 9 The peeling force and tearing property were measured and evaluated in the same manner as in Experimental Example 3 except that the adhesive tape C was used instead of the adhesive tape A.
【0050】実験例10 粘着テープAに代えて粘着テープDを用いた以外は実験
例1と同様にして、剥離力及び裂け性を測定、評価し
た。Experimental Example 10 The peeling force and tearing property were measured and evaluated in the same manner as in Experimental Example 1 except that the adhesive tape D was used instead of the adhesive tape A.
【0051】実験例11 粘着テープAに代えて粘着テープDを用いた以外は実験
例2と同様にして、剥離力及び裂け性を測定、評価し
た。Experimental Example 11 The peeling force and tearability were measured and evaluated in the same manner as in Experimental Example 2 except that the adhesive tape D was used instead of the adhesive tape A.
【0052】実験例12 粘着テープAに代えて粘着テープDを用いた以外は実験
例3と同様にして、剥離力及び裂け性を測定、評価し
た。Experimental Example 12 The peeling force and tearability were measured and evaluated in the same manner as in Experimental Example 3 except that the adhesive tape D was used instead of the adhesive tape A.
【0053】実験例13 粘着テープAに代えて粘着テープEを用いた以外は実験
例1と同様にして、剥離力及び裂け性を測定、評価し
た。Experimental Example 13 The peeling force and tearing property were measured and evaluated in the same manner as in Experimental Example 1 except that the adhesive tape E was used instead of the adhesive tape A.
【0054】実験例14 粘着テープAに代えて粘着テープEを用いた以外は実験
例2と同様にして、剥離力及び裂け性を測定、評価し
た。Experimental Example 14 The peeling force and tearability were measured and evaluated in the same manner as in Experimental Example 2 except that the adhesive tape E was used instead of the adhesive tape A.
【0055】実験例15 粘着テープAに代えて粘着テープEを用いた以外は実験
例3と同様にして、剥離力及び裂け性を測定、評価し
た。Experimental Example 15 The peeling force and tearability were measured and evaluated in the same manner as in Experimental Example 3 except that the adhesive tape E was used instead of the adhesive tape A.
【0056】以上の実験例の結果を表1に示す。Table 1 shows the results of the above experimental examples.
【表1】 表1より、実施例のテープでは、塗料吹き付けを行った
ときの粘着力が塗料吹き付けを行わない場合の粘着力よ
り明らかに低く、裂け性が良好で、再剥離時の作業性に
優れることがわかる。[Table 1] From Table 1, it can be seen that in the tapes of Examples, the adhesive strength when spraying paint is clearly lower than the adhesive strength when spraying paint is not performed, the tearing property is good, and the workability at the time of re-peeling is excellent. Understand.
Claims (4)
した塗装用マスキングテープまたはシートであって、前
記粘着剤層が水分散型粘着剤からなり、かつ前記多孔性
基材の透気度が10〜36000秒/100mlであ
り、塗料吹き付けにより被着体貼り付け粘着力が低下す
る特性を有する塗装用マスキングテープまたはシート。1. A coating masking tape or sheet having a pressure-sensitive adhesive layer formed on one surface of a porous substrate, wherein the pressure-sensitive adhesive layer comprises a water-dispersed pressure-sensitive adhesive, and A masking tape or sheet for coating having an air permeability of 10 to 36000 sec / 100 ml and having a property of reducing the adhesive strength for applying to an adherend by spraying paint.
求項1記載の塗装用マスキングテープまたはシート。2. The masking tape or sheet for coating according to claim 1, wherein the pressure-sensitive adhesive layer comprises an acrylic pressure-sensitive adhesive.
る請求項1又は2記載の塗装用マスキングテープまたは
シート。3. The masking tape or sheet for coating according to claim 1, wherein the gel fraction of the pressure-sensitive adhesive is 30% by weight or more.
粘着力が1.7〜4.4N/18mmである請求項1〜
3の何れかの項に記載の塗装用マスキングテープまたは
シート。4. The adhesive strength for adhering to an adherend after spraying paint is 1.7 to 4.4 N / 18 mm.
4. The coating masking tape or sheet according to any one of the above items 3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP32753399A JP4326092B2 (en) | 1998-11-24 | 1999-11-17 | Masking tape or sheet for painting |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33234898 | 1998-11-24 | ||
JP10-332348 | 1998-11-24 | ||
JP32753399A JP4326092B2 (en) | 1998-11-24 | 1999-11-17 | Masking tape or sheet for painting |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2000218204A true JP2000218204A (en) | 2000-08-08 |
JP4326092B2 JP4326092B2 (en) | 2009-09-02 |
Family
ID=26572530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP32753399A Expired - Fee Related JP4326092B2 (en) | 1998-11-24 | 1999-11-17 | Masking tape or sheet for painting |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002356662A (en) * | 2001-05-30 | 2002-12-13 | Nitto Denko Corp | Peelable pressure-sensitive adhesive composition and sheet |
JP2002356663A (en) * | 2001-05-30 | 2002-12-13 | Nitto Denko Corp | Pressure-sensitive adhesive composition and sheet |
JP2007160144A (en) * | 2005-12-09 | 2007-06-28 | Sk Kaken Co Ltd | Forming method for pattern surface |
JP2007160143A (en) * | 2005-12-09 | 2007-06-28 | Sk Kaken Co Ltd | Forming method for pattern surface |
JP2010163484A (en) * | 2009-01-13 | 2010-07-29 | Lintec Corp | Heat-resistant masking tape |
JP2010196077A (en) * | 2002-02-25 | 2010-09-09 | Nitto Denko Corp | Water-dispersion type pressure-sensitive adhesive composition and pressure-sensitive adhesive product |
US8833295B2 (en) | 2009-05-12 | 2014-09-16 | 3M Innovative Properties Company | Masking article for producing precise paint lines and method of improving paint line performance of masking articles |
JP2017019920A (en) * | 2015-07-09 | 2017-01-26 | 積水化学工業株式会社 | Masking tape |
-
1999
- 1999-11-17 JP JP32753399A patent/JP4326092B2/en not_active Expired - Fee Related
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002356662A (en) * | 2001-05-30 | 2002-12-13 | Nitto Denko Corp | Peelable pressure-sensitive adhesive composition and sheet |
JP2002356663A (en) * | 2001-05-30 | 2002-12-13 | Nitto Denko Corp | Pressure-sensitive adhesive composition and sheet |
JP4716604B2 (en) * | 2001-05-30 | 2011-07-06 | 日東電工株式会社 | Strong adhesive pressure-sensitive adhesive composition and strong adhesive sheet |
JP4716603B2 (en) * | 2001-05-30 | 2011-07-06 | 日東電工株式会社 | Removable pressure-sensitive adhesive composition and re-peelable pressure-sensitive adhesive sheet |
JP2010196077A (en) * | 2002-02-25 | 2010-09-09 | Nitto Denko Corp | Water-dispersion type pressure-sensitive adhesive composition and pressure-sensitive adhesive product |
JP2007160144A (en) * | 2005-12-09 | 2007-06-28 | Sk Kaken Co Ltd | Forming method for pattern surface |
JP2007160143A (en) * | 2005-12-09 | 2007-06-28 | Sk Kaken Co Ltd | Forming method for pattern surface |
JP4711812B2 (en) * | 2005-12-09 | 2011-06-29 | エスケー化研株式会社 | Pattern surface formation method |
JP4711813B2 (en) * | 2005-12-09 | 2011-06-29 | エスケー化研株式会社 | Pattern surface formation method |
JP2010163484A (en) * | 2009-01-13 | 2010-07-29 | Lintec Corp | Heat-resistant masking tape |
US8833295B2 (en) | 2009-05-12 | 2014-09-16 | 3M Innovative Properties Company | Masking article for producing precise paint lines and method of improving paint line performance of masking articles |
JP2017019920A (en) * | 2015-07-09 | 2017-01-26 | 積水化学工業株式会社 | Masking tape |
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