【発明の詳細な説明】[Detailed description of the invention]
従来、第１図示のように、表面に印刷を施され
たラベル基材ａの裏面の１部に所定形状の粘着剤
無塗布面部ｂと粘着剤塗層面部ｃとから成る粘着
ラベルＡは公知である。その製法は、第２図示の
如くである。即ち、先づ、第２図Ａ示の如く、剥
離性基材ｄ面に粘着剤溶液により所定形状の粘着
剤を塗布しない面部ｂを残して、所定パターン形
状の粘着剤をそのパターン形状をもつた塗布版に
より塗布し、粘着剤パターン塗層面部ｃを形成
し、次でその表面にラベル基材ａを第２図Ｂ示の
如く重合貼着し、次で該ラベル基材ａ表面の所定
個所に所要の印刷ｅを施した後、これを、該パタ
ーン塗層面部ｃと該無塗布面部ｂとを含む所定形
状で且つラベル基材ａ面から粘着剤塗布面部ｃま
でも達するようにハーフダイカツトで打抜き処理
し、次で第２図Ｃ示の如く該ラベル形状以外の基
材カス部a′を除去することにより製造される。
従て、この製造法では、粘着力が皆無の面部ｂ
に限られた第１図示の粘着ラベルが製造できるの
みで、粘着力の皆無のものから所要の粘着力を有
する面部をもつ粘着ラベル製造できない不都合が
ある。而も、この製造法で得た粘着ラベルは、そ
の無塗布面部ｂは即ち基材ａ自体であるので、そ
の貼着使用時に於て、ラベル基材ａが紙質の場
合、吸湿により該面部ｂにしわが入り、これに伴
ない粘着ラベル全体が外方へ屈曲し、粘着面が被
貼着面より離れて、良好な粘着状態が維持できな
い不都合がある。
本発明は、かゝる上記従来の粘着ラベルの製造
法の不都合を解消すると同時にこれにより製造さ
れた前記粘着ラベルの欠点を除去し得る粘着ラベ
ルの製造法を提供するもので、基材の片面全面に
粘着剤を均一に塗布する工程と、該粘着剤塗層面
に、塗料を部分的に塗布乾燥し、厚さ10μ程度以
下の被膜面部を形成する工程と、その上面全面に
剥離性基材を重合貼着する工程と、該粘着剤塗層
面部と該被膜面部とを含む所定形状に打抜する工
程とから成る粘着ラベルの製造法に存する。
本発明の実施例を第３図以下につき説明する。
先づ第１に、任意の基材、例えば、ラベル基材１
上に片面全面に、例えば、有機溶剤型の合成樹脂
粘着剤溶液（固形分例えば30％）を均一に100μ
程度の厚さに塗布し、次で乾燥して厚さ30μ程度
の粘着剤塗層面２を形成する。（第３図参照）。
次に、これを所定のパターンをもつた凸版型の
ラベル加工印刷機等を使用し、これにより上記の
粘着剤塗層面２に一定の規則的な間隔を存して、
下記詳述の塗料を厚さ10μ以下の塗膜を所定形状
又は大きさに例えば小円形に塗布し、乾燥して、
前記粘着剤塗層面２上に部分的に無粘着性又は少
許粘着性の被膜面部３…を形成する（第４図参
照）。次に第５図示のように、剥離性基材４を、
前記の粘着剤塗層面２全面に重合貼着し、次で該
ラベル基材１の表面に、前記の各被膜面部３に対
応して、所要の表示の印刷部５を施す。次でこの
積層シートに第６図示のように、該ラベル基材１
の外側からその各印刷部５に於て、その外周を囲
繞して且つ深さ該粘着剤塗層２までも達するハー
フダイカツト６処理を施した後、該ラベル基材１
の打抜きカス部１′を除去する（第７図）。かくし
て、第７図示のように、該剥離シート４上に多数
の本発明所定形状の例えば円形粘着ラベルｓが得
られる。即ち、各円形の該粘着ラベルｓは、前記
のように、そのラベル基材１の裏面に全面に亘り
比較的肉厚の通常20〜40μの粘着剤塗層面部２を
有し且つその粘着剤塗層面部２の中心にこれと実
質上同一平面の小円形の粘着性の全くない又は粘
着性の僅かに有する被膜面部３を有するものであ
る。之を使用するには、剥離紙４から剥がし、例
えば第８図示のように容器７の口部に貼着使用す
る。８は栓を示す。かくして、粘着剤の付着を好
まない栓８は、本発明粘着ラベルｓの該被膜面部
３が重なり、その汚染が完全に防止される１方そ
の外周の露出した環状の粘着剤塗層面部２で口部
周面に密着固定されて良好に使用される。
該被膜面部３の形成に当り、その塗布厚さが約
10μ以下であるときは、曳糸現象を示さないで所
定の面域形状のものが円滑に得られることが認め
られた。
該被膜面部３は、第９図示のように、連続被膜
３ａでも網状その他の不連続被膜３ｂでも差支え
ない。
多くの実験によれば、連続被膜は、塗料として
非粘着性物質を使用しても、その厚さにより非粘
着面から各種粘着力（ｇ／cm幅）の異なる僅かな
粘着性面をもつものに変えることが出来ることが
分つた。その１例を下記表１に示す。
Conventionally, as shown in FIG. 1, a pressure-sensitive adhesive label A is known which consists of a predetermined shape of an adhesive-free surface part b and an adhesive-coated surface part c on a part of the back surface of a label base material a whose surface is printed. It is. The manufacturing method is as shown in the second figure. That is, as shown in FIG. 2A, first, a predetermined pattern of adhesive is applied to surface d of the removable substrate, leaving a surface portion b on which no adhesive of a predetermined shape is applied with an adhesive solution. The pressure-sensitive adhesive pattern is coated using a coating plate to form an adhesive pattern coated surface part c, and then a label base material a is polymerized and pasted on the surface as shown in FIG. 2B. After the required printing e is applied to the area, it is half-printed in a predetermined shape including the pattern coated surface c and the non-coated surface b, and reaches from the label base material side a to the adhesive coated surface c. It is manufactured by punching with a die cut and then removing the base material waste portion a' other than the label shape as shown in FIG. 2C. Therefore, in this manufacturing method, the surface portion b has no adhesive force.
However, there is a disadvantage that it is not possible to manufacture a pressure-sensitive adhesive label having a surface portion having the required adhesive force from one with no adhesive force. However, in the adhesive label obtained by this manufacturing method, the non-coated surface part b is the base material a itself, so when the label base material a is made of paper, when the label base material a is paper, the surface part b will absorb moisture. Wrinkling occurs, and as a result, the entire adhesive label bends outward, causing the adhesive surface to separate from the surface to which it is adhered, making it impossible to maintain a good adhesive state. The present invention provides a method for manufacturing an adhesive label that can eliminate the disadvantages of the above-mentioned conventional adhesive label manufacturing method and at the same time eliminate the disadvantages of the adhesive label manufactured thereby. A process of uniformly applying the adhesive over the entire surface, a process of partially applying and drying the paint on the adhesive coated surface to form a coating surface with a thickness of about 10μ or less, and a process of applying a releasable base to the entire upper surface. The method of producing an adhesive label comprises the steps of polymerizing and adhering materials, and punching out a predetermined shape including the adhesive coated surface and the coated surface. An embodiment of the present invention will be described with reference to FIG. 3 and subsequent figures.
First of all, any substrate, e.g. label substrate 1
For example, apply 100μ of an organic solvent type synthetic resin adhesive solution (solid content, e.g. 30%) evenly over the entire surface of one side.
The adhesive is applied to a thickness of approximately 30 μm and then dried to form an adhesive coating surface 2 having a thickness of approximately 30 μm. (See Figure 3). Next, this is printed using a letterpress-type label processing printing machine having a predetermined pattern, so that certain regular intervals are formed on the adhesive coated surface 2.
Apply the paint detailed below to a thickness of 10μ or less in a predetermined shape or size, for example, in a small circle, dry it,
A non-adhesive or slightly adhesive coating surface portion 3 is formed partially on the adhesive coated surface 2 (see FIG. 4). Next, as shown in the fifth diagram, the removable base material 4 is
The adhesive is polymerized and adhered to the entire surface of the adhesive coated surface 2, and then a printed portion 5 with a desired indication is applied to the surface of the label base material 1, corresponding to each of the coated surface portions 3 described above. Next, the label base material 1 is attached to this laminated sheet as shown in the sixth figure.
After performing a half die cut 6 treatment on each printing part 5 from the outside of the label base material 1 so as to surround the outer periphery and reach the depth of the adhesive coating layer 2, the label base material 1 is
The punched waste portion 1' is removed (FIG. 7). In this way, as shown in FIG. 7, a large number of, for example, circular adhesive labels s having a predetermined shape of the present invention are obtained on the release sheet 4. That is, each circular pressure-sensitive adhesive label s has, as described above, a pressure-sensitive adhesive coated surface portion 2 having a relatively thick thickness, usually 20 to 40 μm, over the entire back surface of its label base material 1, and the pressure-sensitive adhesive At the center of the coated surface portion 2 is a small circular coating surface portion 3 that is substantially flush with the coated surface portion 2 and has no tackiness or only a slight amount of tackiness. To use it, it is peeled off from the release paper 4 and pasted onto the opening of the container 7, for example, as shown in Figure 8. 8 indicates a stopper. In this way, the plug 8, which does not like the adhesion of adhesive, overlaps the coated surface 3 of the adhesive label s of the present invention, completely preventing its contamination, while the annular adhesive-coated surface 2 exposed on its outer periphery It can be used well by being tightly fixed to the circumferential surface of the mouth. In forming the coating surface portion 3, the coating thickness is approximately
It was found that when the thickness was 10 μm or less, the desired area shape could be obtained smoothly without any stringiness. The coating surface portion 3 may be a continuous coating 3a, as shown in FIG. 9, or a reticulated or other discontinuous coating 3b. According to many experiments, even if a non-adhesive substance is used as a paint, a continuous film has a slightly adhesive surface with various adhesion forces (g/cm width) depending on its thickness. I found out that it can be changed to One example is shown in Table 1 below.
【表】
こゝで、非粘着性物質Ａは塩化ビニル−さく酸
ビニル共重合体、仝ＢはUVインキ、仝Ｃはトリ
イソシアネートであり、ベタ凸版で粘着剤塗層面
に塗布乾燥した。粘着剤塗層面は、２−エチルヘ
キシルアクリレート80重量部、さく酸ビニル17重
量部、アクリル酸３重量部の配合でさく酸エチ
ル・トルエン混合溶媒中にてラジカル重合せし
め、平均重量分子量300000のカルボキシル基を有
するアクリル系粘着剤を30μの厚さに塗布乾燥し
たものである。その粘着力は400ｇ／cm幅である。
これから明らかなように、連続被膜でも、その厚
さが極めて肉薄に作成すると、その下面の粘着剤
がその被膜を透過してその表面に滲み出て適度の
粘着性をその被膜面に与えることが分つた。
不連続被膜の場合は、その網目や縞目等を透し
て直接粘着剤の粘着力が利用されて適当の粘着性
を該被膜面に与えるものであり、例えばUVイン
キで、スクリーン線数50、グラデーシヨンスケー
ル５の綱点凸版の不連続被膜とした場合被膜厚さ
0.3〜0.4μのとき、150ｇ／cm幅の粘着力を有する
ものに形成できる。粘着力はJISZ0237∠180゜引き
ばかし法で測定した。
かくして、その網目や縞目の目の粗密を適当に
調節することにより、被膜面の粘着力を適当に変
えた被膜を形成できる。
塗料の非粘着性物質としては、例えばさく酸ビ
ニル、塩化ビニル、ポリスチレン、メタクリル酸
メチル、塩化ビニル−さく酸ビニル共重合体、エ
チレン−さく酸ビニル共重合体、シリコン樹脂、
ポリビニルアルコール等の合成樹脂、デンプン、
印刷インキ、塗料等が掲げられ、又粘着剤塗層面
と反応硬化する硬化性物質として例えば、２−エ
チルヘキシルアクリレート、ブチルアクリレート
にカルボキシル基を有するアクリル酸、又は水酸
基を有する２−ヒドロキシエチルメタクリレート
等を共重合せしめたアクリル系粘着剤を塗層面と
した場合は、トリイソシアネート、ブチル化メラ
ミン樹脂等の反応硬化性樹脂が用いられる。
第１０図は、少許の粘着性を有する被膜面部３
を、ラベル基材１の裏面全面に塗布した粘着剤塗
層面２の１部１側面域に形成し、その堺に切り取
り用のミシン目９を施した本発明により製造した
粘着ラベルｓを示し、該粘着ラベルは、例えば薬
品容器の外面に貼着して使用される場合、その被
膜面部３を軽く押圧貼着し、安定した使用がで
き、必要に応じ、該被膜面部３を剥がし、ミシン
目９から切り取り、そのラベル片をカルテ等の被
貼着面に貼着して使用する。本発明の他の実施例
では、粘着剤塗層面を直接ラベル基材に塗布形成
したものに、剥離性基材を重合して運搬を便に
し、別の場所で剥離性基材をはがし、被膜面部形
成処理を行なうようにしてもよい。又前記の打き
抜きは、完全打抜きで行なつてもよい。
このように本発明によるときは、ラベル基材全
面に粘着剤の塗層面を形成し、この塗層面に直接
塗料を部分的に塗布乾燥し、厚さ10μ程度以下の
被膜面部を形成するので、粘着力が皆無のものか
ら所要の粘着力を任意に有する被膜面部をもつた
粘着ラベルを所望に応じ製造することが出来、そ
の粘着ラベルは、基材が紙質であつても、従来上
記のような不都合がなく、長期に亘り良好な貼着
状態を維持し得る等の効果を有する。[Table] Here, non-adhesive substance A is a vinyl chloride-vinyl succinate copolymer, B is a UV ink, and C is a triisocyanate, which were applied to the adhesive coated surface using a solid relief plate and dried. The adhesive coating surface was made by radical polymerizing a mixture of 80 parts by weight of 2-ethylhexyl acrylate, 17 parts by weight of vinyl succinate, and 3 parts by weight of acrylic acid in a mixed solvent of ethyl succinate and toluene to form a carboxyl compound with an average weight molecular weight of 300,000. An acrylic adhesive having a base was applied to a thickness of 30μ and dried. Its adhesive strength is 400g/cm width.
As is clear from this, even if a continuous coating is made extremely thin, the adhesive on the lower surface will permeate through the coating and ooze out onto the surface, imparting appropriate adhesion to the coating surface. Divided. In the case of discontinuous coatings, the adhesive force of the adhesive is directly utilized through the mesh or stripes to provide appropriate adhesion to the coating surface.For example, with UV ink, the screen line count is 50. , the coating thickness in the case of a discontinuous coating with a gradation scale of 5 and a dot letterpress.
When it is 0.3 to 0.4μ, it can be formed into a product with adhesive strength of 150g/cm width. Adhesive strength was measured using the JISZ0237∠180° pull-out method. In this way, by appropriately adjusting the density of the mesh or stripes, it is possible to form a film with the adhesion of the film surface appropriately changed. Non-adhesive substances for paint include, for example, vinyl succinate, vinyl chloride, polystyrene, methyl methacrylate, vinyl chloride-vinyl succinate copolymer, ethylene-vinyl succinate copolymer, silicone resin,
Synthetic resins such as polyvinyl alcohol, starch,
Printing inks, paints, etc. are listed, and curable substances that react and cure with the adhesive coated surface include, for example, 2-ethylhexyl acrylate, butyl acrylate with acrylic acid having a carboxyl group, or 2-hydroxyethyl methacrylate having a hydroxyl group. When the coating surface is an acrylic pressure-sensitive adhesive copolymerized with , a reaction-curing resin such as triisocyanate or butylated melamine resin is used. FIG. 10 shows a coating surface portion 3 having a small amount of adhesiveness.
is formed on one part and one side area of the adhesive coated surface 2 applied to the entire back surface of the label base material 1, and perforations 9 for cutting are made at the edges thereof. For example, when the adhesive label is attached to the outer surface of a drug container, it can be used stably by lightly pressing the coating surface 3, and if necessary, peeling off the coating surface 3 and using a sewing machine. Cut out from eye 9 and use the label piece by pasting it on a surface to be adhered to, such as a medical record. In another embodiment of the present invention, the adhesive coating surface is applied directly to the label base material, a peelable base material is polymerized to facilitate transportation, and the peelable base material is peeled off at another location. A coating surface portion forming process may also be performed. Further, the above-mentioned punching may be performed by complete punching. According to the present invention, a coating surface of the adhesive is formed on the entire surface of the label base material, and a paint is partially applied directly to this coating surface and dried to form a coating surface with a thickness of about 10 μm or less. Therefore, it is possible to manufacture an adhesive label with a coated surface part having any desired adhesive strength from one with no adhesive strength to a desired adhesive strength, and even if the base material is paper, the adhesive label can It has the advantage of being able to maintain a good adhesion state over a long period of time without such inconveniences.
【図面の簡単な説明】[Brief explanation of the drawing]
第１図は従来法により製造した粘着ラベルの斜
面図、第２図Ａ〜Ｃはその製造工程を示し、第２
図Ａは、その１部の斜面図、第２図Ｂは次の工程
の１部の断面図、第２図Ｃは次の工程の１部の斜
面図、第３図乃至第７図は本発明実施の１例を示
し、第３図は、粘着剤塗布工程の１部の斜面図、
第４図は被膜面部形成工程の１部の斜面図、第５
図は積層工程の１部の斜面図、第６図は切断工程
の１部の断面図、第７図は本発明粘着ラベルの斜
面図、第８図はその使用状態の断面図、第９図
ABは各種被膜面部の形成状態を示す１部の平面
図、第１０図は本法で製造した他の形式の粘着ラ
ベルの１部を截除した斜面図を示す。
１……ラベル基材、２……粘着剤塗層面、３…
…被膜面部、４……剥離性基材、５……印刷部、
６……打抜き線。
Figure 1 is a perspective view of an adhesive label manufactured by the conventional method, Figures 2 A to C show the manufacturing process, and Figure 2
Figure A is a perspective view of a part of the process, Figure 2B is a cross-sectional view of a part of the next process, Figure 2C is a perspective view of a part of the next process, and Figures 3 to 7 are the main part. One example of carrying out the invention is shown, and FIG. 3 is a perspective view of a part of the adhesive application process;
Figure 4 is a perspective view of a part of the coating surface forming process;
The figure is a perspective view of a part of the lamination process, Figure 6 is a cross-sectional view of a part of the cutting process, Figure 7 is a slope view of the adhesive label of the present invention, Figure 8 is a cross-sectional view of its usage state, and Figure 9
AB shows a plan view of a portion showing the state of formation of various coating surface portions, and FIG. 10 shows a cut-away oblique view of a portion of another type of adhesive label manufactured by this method. 1...Label base material, 2...Adhesive coating surface, 3...
...Coating surface part, 4... Peelable base material, 5... Printing part,
6... Punching line.