JPH0623341B2 - Method for improving low temperature adhesiveness of adhesive film for marking - Google Patents
Method for improving low temperature adhesiveness of adhesive film for markingInfo
- Publication number
- JPH0623341B2 JPH0623341B2 JP61044492A JP4449286A JPH0623341B2 JP H0623341 B2 JPH0623341 B2 JP H0623341B2 JP 61044492 A JP61044492 A JP 61044492A JP 4449286 A JP4449286 A JP 4449286A JP H0623341 B2 JPH0623341 B2 JP H0623341B2
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- JP
- Japan
- Prior art keywords
- marking
- film
- water
- adhesive
- adhesive film
- 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.)
- Expired - Lifetime
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Description
【発明の詳細な説明】 本発明はマーキング用粘着フィルムの低温時貼付の接着
力改善法に関する。詳しくは、塩化ビニル樹脂を主成分
とするフィルム（基材）の裏面にアクリル樹脂系粘着剤
を塗布してなるマーキング用粘着フィルムを被着体に低
温度（約１５℃以下）雰囲気で貼付施工する場合におけ
る接着力不足を、簡便に改善する方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for improving the adhesive strength of an adhesive film for marking which is applied at low temperature. Specifically, a marking adhesive film made by coating an acrylic resin adhesive on the back of a film (base material) containing vinyl chloride resin as a main component is applied to an adherend in a low temperature (about 15 ° C or less) atmosphere. The present invention relates to a method for simply improving the lack of adhesive strength in the case of doing.
本発明において、使用するマーキング用粘着フィルムは
上記のごとく、塩化ビニル系樹脂を主成分とするフィル
ム（基材）の裏面に粘着剤を塗布してなり、それ自体す
でに公知であって、乗用車、二輪車、トラック、コンテ
ナー、船舶などのマーキング、看板および広告塔などの
ディスプレー、機械および器具などのネームプレートな
どに多く使用されている。さらに、具体的には、基材は
塩化ビニル系樹脂を主成分とし、さらに着色剤、可塑剤
などを配合してなるフィルムであり、該フィルムに関
し、厚さは２０〜５００μ、引張強度１〜１０kg／２５
mm（テンシロン型引張試験機、３００mm／分、２３℃、
６５％RH）、伸び率５０〜３００％（同上）、隠ぺい率
９０以上（ＪＩＳ Ｋ−５４００に準ずる）であること
が好ましく、公知の方法によって製造できる。In the present invention, the pressure-sensitive adhesive film for marking used, as described above, is obtained by applying an adhesive on the back surface of the film (base material) containing a vinyl chloride resin as the main component, which is already known per se, for passenger cars, It is widely used for marking motorcycles, trucks, containers, ships, etc., displays such as signboards and advertising towers, and name plates for machines and instruments. More specifically, the base material is a film containing a vinyl chloride resin as a main component and further containing a colorant, a plasticizer and the like, and the film has a thickness of 20 to 500 μ and a tensile strength of 1 to 10 kg / 25
mm (tensilon type tensile tester, 300 mm / min, 23 ° C,
65% RH), an elongation rate of 50 to 300% (same as above), and a hiding rate of 90 or more (according to JIS K-5400), which can be produced by a known method.
これらの基材の裏面に塗布する粘着剤は、耐候性および
耐油性などのすぐれたアクリル樹脂系粘着剤が特に好適
であり、例えば、アクリル酸エステルやメタクリル酸エ
ステルを主成分とし、さらに必要に応じて、カルボキシ
ル基、水酸基、アミノ基またはグリシジル基などの官能
基を有するビニルモノマー、酢酸ビニル、塩化ビニリデ
ン、アクリロニトリルなどのその他のビニルモノマーな
どを用いて重合もしくは共重合せしめてなるアクリル樹
脂系粘着剤があげられ、さらに目的に応じて粘着付与剤
などを添加することもできる。本発明では、該粘着剤の
ガラス転移温度は、揮発成分を除いた系で、０℃以下、
特に−２０℃以下であることが好ましい。基材裏面への
粘着剤の塗布は公知の方法によって行なわれ、その膜厚
は、１０〜５０μの範囲（揮発成分を含まず）が好まし
い。The pressure-sensitive adhesive to be applied to the back surface of these base materials is particularly preferably an acrylic resin-based pressure-sensitive adhesive having excellent weather resistance and oil resistance, for example, an acrylic acid ester or a methacrylic acid ester as a main component, and further if necessary. Accordingly, an acrylic resin-based adhesive obtained by polymerizing or copolymerizing a vinyl monomer having a functional group such as a carboxyl group, a hydroxyl group, an amino group or a glycidyl group, vinyl acetate, vinylidene chloride, or other vinyl monomer such as acrylonitrile. Examples of the agent include tackifiers and the like, depending on the purpose. In the present invention, the glass transition temperature of the pressure-sensitive adhesive is 0 ° C. or lower in a system excluding volatile components,
Particularly, it is preferably −20 ° C. or lower. The pressure-sensitive adhesive is applied to the back surface of the substrate by a known method, and the film thickness thereof is preferably in the range of 10 to 50 μm (excluding volatile components).
そして、これらのマーキング用粘着フィルムは基材中の
着色剤によって単色もしくは２色以上に任意の色合いに
調色することができ、それを目的とする大きさ、形状に
裁断し、前記の被着体に貼付するのである。Then, these adhesive films for marking can be toned in a desired color of a single color or two or more colors by a coloring agent in a substrate, and cut into a desired size and shape, and the above-mentioned coating Attach it to your body.
ところが、これらのマーキング用粘着フィルムの欠陥と
して、該フィルムの貼付施工時の環境温度の変動によっ
て粘着力が劣化することがあげられる。具体的には比較
的高温領域（２５℃以上）で貼付施工すると粘着力が大
きく特に問題ないが、低温（約１５℃以下）環境下で貼
付施工すると十分な粘着力が得られず、剥離することが
ある。However, one of the defects of these pressure-sensitive adhesive films for marking is that the adhesive force is deteriorated due to a change in environmental temperature during the application of the film. Specifically, when it is applied in a relatively high temperature region (25 ° C or higher), the adhesive strength is large and there is no particular problem, but when it is applied in a low temperature (about 15 ° C or lower) environment, sufficient adhesive force cannot be obtained and peels off. Sometimes.
本発明者らは、上記欠陥を貼付作業時に簡便な方法で克
服する方法について検討し、次の結果を得た。The present inventors examined a method of overcoming the above defects by a simple method at the time of sticking work, and obtained the following results.
すなわち、本発明は、基材が塩化ビニル樹脂を成分と
し、かつその裏面にアクリル樹脂系粘着剤を塗布してな
るマーキング用粘着フィルムを被着材面に貼付施工する
に際して、沸点が５０〜２００℃の水可溶性有機溶剤５
〜５０重量％と水９５〜５０重量％とからなる混合液
を、該マーキングフィルムの粘着剤面および（または）
被着材面にあらかじめ１０〜２００ml／m2塗布しておく
ことを特徴とするマーキング用粘着フィルムの低温接着
力を改善する方法に関する。That is, the present invention has a boiling point of 50 to 200 when a marking adhesive film, in which a base material contains vinyl chloride resin as a component and an acrylic resin adhesive is applied to the back surface thereof, is attached to the surface of an adherend. ℃ water-soluble organic solvent 5
To 50% by weight and 95 to 50% by weight of water on the pressure-sensitive adhesive surface of the marking film and / or
The present invention relates to a method for improving low-temperature adhesive strength of a pressure-sensitive adhesive film for marking, which comprises applying 10 to 200 ml / m 2 on the surface of an adherend in advance.
本発明で用いる、沸点が５０〜２００℃の水可溶性有機
溶剤５〜５０重量％と水９５〜５０重量％とからなる混
合液（以下、「湿潤液」と略称する）において、水可溶
性有機溶剤は、沸点が５０〜２００℃、好ましくは５０
〜１５０℃の範囲内に含まれ、しかも上記範囲内の割合
で水と混合させた場合に、相分離や白濁せずに水と完全
に溶解する有機溶剤である。In the mixed liquid (hereinafter, abbreviated as “wetting liquid”) composed of 5 to 50% by weight of water-soluble organic solvent having a boiling point of 50 to 200 ° C. and 95 to 50% by weight of water, used in the present invention, Has a boiling point of 50 to 200 ° C., preferably 50.
It is an organic solvent which is completely dissolved in water without phase separation or white turbidity when mixed with water in a ratio within the range of 150 ° C to 150 ° C.
さらに、該水可溶性有機溶剤は、貼付するマーキング用
粘着フィルムの粘着剤層と親和性がすぐれていることが
好ましい。Further, the water-soluble organic solvent preferably has excellent affinity with the pressure-sensitive adhesive layer of the pressure-sensitive adhesive film for marking to be applied.
本発明で用いられる上記水可溶性有機溶剤としては、具
体的には、ケトン系ではアセトン・メチルエチルケトン
など、エーテル系ではテトラヒドロフラン・エチレング
リコールジエチルエーテルなど、エステル類では、酢酸
メチル・酢酸エチル、エチレングリコールモノメチルエ
ーテルアセテート・エチレングリコールモノエチルエー
テルアセテート・グリコールジアセテートなどがあげら
れる。Specific examples of the water-soluble organic solvent used in the present invention include acetone / methyl ethyl ketone for ketone systems, tetrahydrofuran / ethylene glycol diethyl ether for ether systems, and methyl acetate / ethyl acetate, ethylene glycol monomethyl ester for esters. Examples thereof include ether acetate / ethylene glycol monoethyl ether acetate / glycol diacetate.
湿潤液において、水可溶性有機溶剤と水との構成割合
は、前記のごとく、両成分の合計量に基いて、水可溶性
有機溶剤が５〜５０重量％、好ましくは１０〜３０重量
％、水が９５〜５０重量％、好ましくは７０〜９０重量
％であって、水可溶性有機溶剤が５重量％より少なくな
ると低温接着性改善効果が殆どなく、５０重量％より多
くなると被着面が侵されたり、揮発が早すぎて貼付作業
がやり難いので、いずれも好ましくない。In the wetting liquid, the composition ratio of the water-soluble organic solvent and water is, as described above, 5 to 50% by weight, preferably 10 to 30% by weight, of water-soluble organic solvent based on the total amount of both components. 95 to 50% by weight, preferably 70 to 90% by weight. When the water-soluble organic solvent is less than 5% by weight, there is almost no low-temperature adhesiveness improving effect, and when it is more than 50% by weight, the adherend surface may be damaged. The volatilization is too fast and the sticking work is difficult to perform, so neither is preferable.
また、水可溶性有機溶剤の沸点が５０℃より低くなる
と、蒸発速度が早すぎて効果が発揮され難く、２００℃
より高くなると被着材面あるいは粘着剤層に長時間残留
して、粘着性が低下するので、いずれも好ましい。Further, when the boiling point of the water-soluble organic solvent is lower than 50 ° C, the evaporation rate is too fast and it is difficult to exert the effect,
If it is higher, it will remain on the surface of the adherend or the pressure-sensitive adhesive layer for a long time, and the adhesiveness will decrease, so both are preferable.
湿潤液には、上記の水可溶性有機溶剤および水に加え
て、さらに界面活性剤などを添加したものも包含され
る。The wetting liquid includes, in addition to the above-mentioned water-soluble organic solvent and water, those obtained by further adding a surfactant and the like.
湿潤液の塗布方法としては、刷毛・ローラー・スプレー
・浸漬および布やスポンジによるワイピング法がある。As a method for applying the wetting liquid, there are a brush, a roller, a spray, a dipping method, and a wiping method using a cloth or a sponge.
本発明において、マーキング用粘着フィルムを粘着せし
める被着材は、特に制限されず、被着面が、例えば鉄・
アルミニウム・ステンレスなどの金属面、熱硬化性塗料
・ラッカー型塗料・酸化乾燥型塗料等にとる塗膜面、ポ
リスチレン・アクリル・ＡＢＳ・ＡＳ（アクリロニトリ
ル・スチレン共重合体）・ポリプロピレンなどのプラス
チック表面、各種ゴムなどの表面などがあげられる。In the present invention, the adherend to which the adhesive film for marking is adhered is not particularly limited, and the adherend has, for example, iron or
Metal surface such as aluminum and stainless steel, coating surface for thermosetting paint, lacquer type paint, oxidation drying type paint, plastic surface such as polystyrene / acrylic / ABS / AS (acrylonitrile / styrene copolymer) / polypropylene, Examples include various rubber surfaces.
本発明の方法はマーキング用粘着フィルムおよび被着材
面のいずれかもしくは両方に湿潤液をあらかじめ塗布
し、湿潤させたのち、該フィルムを被着材面に貼付す
る。すなわち、湿潤液の塗布は、被着材面にマーキング
用粘着フィルムを粘着したとき、この両者間のスキ間が
湿潤液によってみたされるように行なうことが好まし
い。したがって、湿潤液は、上記表面の全面に塗布して
おく必要はなく、該フィルムを粘着することによって湿
潤液が上記のごとく被着材面とのスキ間を満たすなら
ば、配り塗りのようにまばらなように部分的に塗布して
もさしつかえない。具体的には、マーキング用粘着フィ
ルムの粘着剤層面および（または）被着材面の全面に均
一に湿潤液を塗布するのを基準にして、湿潤液を被膜面
１m2あたり、１０〜２００ml、特に２０〜１００ml塗布
することが好ましい。In the method of the present invention, a wetting liquid is applied in advance to one or both of the adhesive film for marking and the surface of the adherend, and after moistening, the film is attached to the surface of the adherend. That is, it is preferable to apply the wetting liquid so that when the pressure-sensitive adhesive film for marking is adhered to the surface of the adherend, the gap between the two is filled with the wetting liquid. Therefore, it is not necessary to apply the wetting liquid to the entire surface, and if the wetting liquid fills the gap between the adherend surface and the film as described above by sticking the film, it is possible to apply the wetting liquid like It is okay to partially apply it sparsely. Specifically, based on the fact that the wetting liquid is uniformly applied to the entire surface of the pressure-sensitive adhesive layer and / or the surface of the adherend of the pressure-sensitive adhesive film for marking, the wetting liquid is 10 to 200 ml per 1 m 2 of the coating surface, It is particularly preferable to apply 20 to 100 ml.
湿潤液を塗布後、マーキング用粘着フィルムを被着材面
に空気などが混入しないように貼付し、その後必要に応
じて、ローラーなどで余分な湿潤液を系外に取り出して
から、常温で放置もしくはマーキング用粘着フィルムが
熱変形しない程度に加熱することによって、該フィルム
を接着性よく貼着させることができる。After applying the wetting liquid, attach the adhesive film for marking to the surface of the adherend so that air etc. do not get mixed, and then, if necessary, remove the excess wetting liquid from the system and leave it at room temperature. Alternatively, the adhesive film for marking can be adhered with good adhesiveness by heating it so that the marking adhesive film is not thermally deformed.
本発明の特徴は、被着材にマーキング用粘着フィルムを
貼着するにあたって、湿潤剤をあらかじめこれらのいず
れかもしくは両方に塗布しておくところにある。その結
果、約１５℃以下の低温環境下で貼付施工しても効率よ
く、強力に接着させることができた。本発明の方法は１
５℃以上の環境下でも実施できることは当然である。The feature of the present invention resides in that when a pressure-sensitive adhesive film for marking is attached to an adherend, a wetting agent is applied to one or both of them in advance. As a result, it was possible to efficiently and strongly adhere even when it was applied in a low temperature environment of about 15 ° C. or less. The method of the present invention is 1
Naturally, it can be carried out even in an environment of 5 ° C or higher.
すなわち、１５℃以下の低温度では、一般に粘着剤の粘
着性は低下するが、湿潤液を塗布することによって、そ
れに含まれている水可溶性有機溶剤が粘着剤層を可塑化
し低下した粘着性を向上させるために、低温度環境下で
も粘着性を低下させることなく貼付施工することが可能
となった。さらに、水可溶性有機溶剤は水と混合するこ
とによって、該有機溶剤単独よりも溶解能力が緩和され
て、マーキング用粘着フィルムの粘着剤層を溶解するこ
となく可塑化する程度に止まり、しかも被着面が塗膜で
あって被着部分以外に湿潤剤が塗布されても、該塗膜を
変色、ツヤ減退、ひびワレ、印刷の損傷などを起させな
いという技術的効果も有している。また、湿潤液を介し
て被着材面にマーキング用粘着フィルムを貼着するの
で、気泡を混入することなく極めて容易に貼着すること
ができ、該フィルムの位置調整も手軽に行なえるように
なった。That is, at a low temperature of 15 ° C. or lower, the tackiness of the pressure-sensitive adhesive is generally lowered, but by applying the wetting liquid, the water-soluble organic solvent contained therein plasticizes the pressure-sensitive adhesive layer to reduce the tackiness. In order to improve it, it has become possible to apply and apply even under low temperature environment without lowering the tackiness. Furthermore, when the water-soluble organic solvent is mixed with water, its dissolving ability is relaxed as compared with the case of using the organic solvent alone, and the adhesive layer of the pressure-sensitive adhesive film for marking is plasticized without being dissolved. Even if the surface is a coating film and a wetting agent is applied to a portion other than the adhered portion, it has a technical effect that the coating film is not discolored, deteriorated in gloss, cracked, or damaged in printing. Further, since the adhesive film for marking is attached to the surface of the adherend through the wetting liquid, it can be attached very easily without mixing air bubbles, and the position of the film can be easily adjusted. became.
本発明の方法によって貼着施工すると、通常、湿潤剤中
の有機溶剤がマーキング用粘着フィルムを通して徐々に
揮発し、引きつづき水も同様にして揮散して、強固に付
着させることができる。When applied by the method of the present invention, normally, the organic solvent in the wetting agent is gradually volatilized through the adhesive film for marking, and subsequently, water is also volatilized in the same manner so that it can be firmly adhered.
Ｉ．試料の調整 （１）被着材 （Ａ）：ポリスチレン製成型品 （Ｂ）：アミノ・アルキド樹脂系塗料塗装金属製品 （Ｃ）：アミノ・アクリル樹脂系塗料塗装金属製品 （２）湿潤液 （Ａ）：メチルエチルケトン／水＝１０／９０（重量
比） （Ｂ）：メチルエチルケトン／水＝２０／８０（同上） （Ｃ）：テトラヒドロフラン／エチレングリコールモノ
メチルエーテルアセテート／水＝５／２５／７０（同
上） （Ｄ）：酢酸エチル／水＝２５／７５（同上） （３）マーキング用粘着フィルム （Ａ）：基材が塩化ビニル系樹脂フィルム（厚さ５０
μ、赤）で、その裏面にアクリル樹脂系粘着剤を塗装
（膜厚２０μ）したもの。I. Preparation of sample (1) Substrate (A): Molded polystyrene product (B): Amino / alkyd resin paint coated metal product (C): Amino / acrylic resin paint coated metal product (2) Wetting liquid ( A): Methyl ethyl ketone / water = 10/90 (weight ratio) (B): Methyl ethyl ketone / water = 20/80 (same as above) (C): Tetrahydrofuran / ethylene glycol monomethyl ether acetate / water = 5/25/70 (same as above) (D): Ethyl acetate / water = 25/75 (same as above) (3) Adhesive film for marking (A): Vinyl chloride-based resin film (thickness 50)
μ, red) and the back side of which is coated with acrylic resin adhesive (film thickness 20 μ).
II．実施例および比較例 上記の試料を用いて、第１表に示した工程で貼付施工し
た。その結果も同表に記載した。II. Examples and Comparative Examples Using the above-mentioned samples, attachment was performed in the steps shown in Table 1. The results are also shown in the table.
第１表において、 (*1)湿潤剤 名称の欄のＭＥＫはメチルエチルケトンの略称である。
塗布方法の欄において、Ｒはローラー塗装、Ｂはハケ塗
り、Ｗは布ワイプ塗りを示す。In Table 1, (* 1) Wetting agent MEK in the name column is an abbreviation for methyl ethyl ketone.
In the column of coating method, R is roller coating, B is brush coating, and W is cloth wipe coating.
(*2)粘着フィルムの外観（５℃で調査） 貼付後の粘着フィルムの付着状態を調べた。(* 2) Appearance of adhesive film (survey at 5 ° C) The adhesive state of the adhesive film after pasting was examined.
◎：フィルム又は被着体に異常がなく強固に付着してい
る状態 △：フィルムが容易にはく離 ×：フィルム又は被着体が塗布液で膨潤状態にあり正常
な状態にない (*3)粘着フィルムを貼付後２０℃、１０℃、５℃の各温
度で島津製オートグラフＳ−１００Ｄ型を用いて、測定
した。粘着フィルムの巾を１０mm、引張り速度２００mm
／分の条件でフィルム切断までの平均最大値で表わす。
引張りは粘着フィルムを被着体に対して１８０°の方向
に引張る。⊚: The film or adherend is in good condition and adheres firmly. △: The film is easily peeled off ×: The film or adherend is in a swelling state with the coating liquid and is not in a normal state (* 3) Adhesion After sticking the film, it was measured at each temperature of 20 ° C., 10 ° C., and 5 ° C. using Autograph S-100D manufactured by Shimadzu. Adhesive film width 10 mm, pulling speed 200 mm
It is represented by the average maximum value until the film is cut under the condition of / min.
The pulling pulls the adhesive film in a direction of 180 ° with respect to the adherend.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭59−108071（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-59-108071 (JP, A)
Claims (1)
その裏面にアクリル樹脂系粘着剤を塗布してなるマーキ
ング用粘着フィルムを被着材面に貼付施工するに際し
て、沸点が５０〜２００℃の水可溶性有機溶剤５〜５０
重量％と水９５〜５０重量％とからなる混合液を、該マ
ーキングフィルムの粘着剤面および（または）被着材面
にあらかじめ１０〜２００ml／m2塗布しておくことを特
徴とするマーキング用粘着フィルムの低温接着力を改善
する方法。1. A boiling point of 50 to 200 when a sticking film for marking, which comprises a vinyl chloride resin as a main component and a back side of which is coated with an acrylic resin pressure-sensitive adhesive, is applied to the surface of an adherend. 5 to 50 ° C. water-soluble organic solvent
10 to 200 ml / m 2 of a mixed liquid consisting of 10% by weight and 95 to 50% by weight of water is previously applied to the adhesive surface and / or the adherend surface of the marking film. A method for improving the low temperature adhesive strength of an adhesive film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61044492A JPH0623341B2 (en) | 1986-02-28 | 1986-02-28 | Method for improving low temperature adhesiveness of adhesive film for marking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61044492A JPH0623341B2 (en) | 1986-02-28 | 1986-02-28 | Method for improving low temperature adhesiveness of adhesive film for marking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62201984A JPS62201984A (en) | 1987-09-05 |
| JPH0623341B2 true JPH0623341B2 (en) | 1994-03-30 |
Family
ID=12693049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61044492A Expired - Lifetime JPH0623341B2 (en) | 1986-02-28 | 1986-02-28 | Method for improving low temperature adhesiveness of adhesive film for marking |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0623341B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07188618A (en) * | 1993-12-27 | 1995-07-25 | Kikusui Kagaku Kogyo Kk | Method for use of pressure-sensitive adhesive |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59108071A (en) * | 1982-12-13 | 1984-06-22 | Daicel Chem Ind Ltd | Adhesion of water-repellent corrugated fiberboard |
-
1986
- 1986-02-28 JP JP61044492A patent/JPH0623341B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62201984A (en) | 1987-09-05 |
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