JP3503408B2 - Pressure-sensitive transfer correction tape - Google Patents
Pressure-sensitive transfer correction tapeInfo
- Publication number
- JP3503408B2 JP3503408B2 JP09056197A JP9056197A JP3503408B2 JP 3503408 B2 JP3503408 B2 JP 3503408B2 JP 09056197 A JP09056197 A JP 09056197A JP 9056197 A JP9056197 A JP 9056197A JP 3503408 B2 JP3503408 B2 JP 3503408B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- transfer
- sensitive
- correction
- correction tape
- 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 - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/408—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the adhesive layer
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、感圧修正テープに
関し、特にブロッキング現象を生じない感圧修正テープ
に関する。
【０００２】
【従来技術】最近、紙面などに誤って記録された簡単に
消去できない文字などを修正するため感圧転写修正テー
プが重宝がられている。感圧転写修正テープは基本的に
はシート状基材上に白色顔料と樹脂とからなる白色修正
隠蔽層とその表面に修正被着体に転写するために設けた
感圧接着剤層とからなる構造のものであって、従来から
コレクションテープと呼ばれ知られている。この感圧転
写修正テープはリールに巻き取られ転写ホルダーに装着
して使用する。そして転写ホルダーの感圧転写修正テー
プ部分を修正部分へ押しつけ、強く押したままホルダー
を引き修正終了部分でホルダーを持ち上げると感圧接着
剤層と白色修正隠蔽層が切断され修正テープが修正部分
に均一に転写され修正が完了する。この修正テープには
ボールペンなどの筆記具で直に筆記することができる。
しかしながら、上記の従来の転写ホルダーに装着した感
圧転写修正テープの場合、転写修正時、感圧転写修正テ
ープの基材からの剥離性が悪く、均一な転写ができな
い、いわゆるブロッキング現象が生じ、修正部分が完全
に隠蔽できなかったり、転写ホルダーのテープの巻きだ
しが困難となり走行不良が生じる等の問題があった。
【０００３】
【発明が解決しようとする課題】このブロッキング現象
を防ぐ目的で、感圧接着剤層を０．８〜１．６μｍと極
めて薄膜にしかつ前記感圧接着剤層と修正隠蔽層の厚さ
の比が１：１４〜１：３５である感圧修正テープ（特開
平８−２７６６９５号）がある。しかし、感圧接着剤層
が薄膜のため転写時の接着が弱い場合があり、いまだに
完全にブロッキング現象を解消できていない。
【０００４】
【課題を解決するための手段】そこで、上記の問題点を
解決すべく種々検討した結果、平均粒径が１〜１０μｍ
のシリコーン高機能パウダーを含有した感圧接着剤層を
形成すると共に、感圧接着剤層と修正隠蔽層の厚さの比
を１：１〜１：４とすることによって感圧転写修正テー
プの基材からの剥離性を向上させて接着剤層の転写時の
切れ性をよくし、且つ何等の隠蔽性を損なわない感圧転
写修正テープを見出し本発明を完成したものである。即
ち、本発明の要旨はシート状の基材の片面に修正隠蔽層
を有し、その表面に平均粒径１〜１０μｍのシリコーン
高機能パウダーを含有する感圧接着剤層からなり、かつ
感圧接着剤層と修正隠蔽層の厚さの比が１：１〜１：４
であることを特徴とする感圧転写修正テープである。
【０００５】
【発明の実施の形態】本発明において使用する基材とし
ては従来使用されている修正テープの支持体と異なら
ず、プラスチック基材や紙基材の何れでも良く、プラス
チック基材としては例えばポリエチレンテレフタレ−ト
等のポリエステルフィルム、ポリプロピレンフィルム、
ポリエチレンフィルム等が好ましく、これらの基材は剥
離性を向上させるために離型剤を塗布又は配合したもの
が好ましい。この基材に塗布して感圧接着層を形成する
接着剤としてはゴム系、アクリル樹脂系、ロジン系、シ
リコーン系など何れの粘着剤も使用できるが、具体的に
アクリル樹脂系接着剤が好ましい。
【０００６】本発明においてはこの粘着剤を溶剤に溶解
もしくは分散させた接着剤にシリコーン高機能パウダー
を分散させる。シリコーン高機能パウダーはこれらの粘
着剤の有機溶剤系、水系どちらにかかわらず分散するこ
とができる。接着剤に分散させるシリコーン高機能パウ
ダーは、平均粒径１〜１０μｍであり、１〜５μｍのも
のが最適である。１０μｍ以上であると接着剤層が厚く
なり上記の効果が発生しない。また１μｍ以下では、細
かすぎて接着剤層にうまく分散出来ない。シリコーン高
機能パウダーは、例えば高度に三次元架橋したシリコン
樹脂又はシリコーンゴムを粉砕する等の特殊処理によっ
て得られた疎水性が高く撥水性に優れた微粉末状のシリ
コーンであって、有機溶剤及び水には不溶で熱安定性、
耐候性を示し、ブロッキング防止のような特性を有する
もので、具体的には東レ・ダウコーニング・シリコーン
（株）製シリコーン系レジンパウダーＲ−９３０、Ｒ−
９３５、シリコーン系ゴムパウダーＥ−６０５等が好適
である。接着剤中に添加するシリコーン高機能パウダー
としては、通常１％〜１０％程度の添加量で十分である
が、この量には限定されない。本発明における修正隠蔽
層は二酸化チタン、炭酸マグネシウム、シリカ等の白色
顔料とバインダーとしての高分子樹脂からなり、従来よ
り修正テープに使用されているものと異ならない。本発
明においては感圧接着剤層と修正隠蔽層の厚さの比が
１：１〜１：４にすることにより、転写時の被着体への
接着性もよく、転写性、隠蔽性、筆記性を良好にするこ
とができる。感圧接着剤層と修正隠蔽層の厚さの比が上
記範囲未満では隠蔽性が劣り、上記範囲以上では厚さが
増し、ブロッキング現象が生じたり、感圧転写修正テー
プの巻きも長くすることができない。
【０００７】
【実施例及び比較例】次に実施例及び比較例をもって本
発明を具体的に説明する。
実施例１〜３及び比較例１〜５
厚さ４０μｍのポリエステルフィルム基材に酸化チタン
と樹脂と溶剤よりなる分散体を塗布して修正隠蔽層を形
成し、この上にアクリル系接着剤に表１に示した平均粒
径を有するシリコーンパウダーＲ−９３０（東レ・ダウ
コーニング（株）製）を分散させた接着剤を塗布して感
圧接着層を形成した。修正隠蔽層及び感圧接着層の厚さ
は表１に示す通りであった。得られた感圧修正テープに
ついて、ブロッキング性及び隠蔽性を測定、その結果を
表１に示した。表１におけるブロッキング性及び隠蔽性
については次の方法によって行なった。
ブロッキング性……感圧転写修正テープをホルダーに装
着し、上質紙に一定荷重で１０ｍ転写テストを行ない、
ブロッキングによる転写不良が生じるかどうかを調べ
た。
〇…全く転写不良がない
△…１ケ所〜１０ケ所転写不良が生じた
×…１０ケ所以上転写不良が生じた
隠蔽性……コピーの文字を修正したとき目視によりコピ
ーの文字が読めるか判断する。
〇…読めない
×…読める
【０００８】
【表１】【０００９】
【発明の効果】以上述べたように、本発明においては特
定の平均粒径を有するシリコーン高機能パウダーを含有
した感圧接着層を形成し、且つ感圧接着層と修正隠蔽層
との厚さの比を特定の範囲に設定することによってブロ
ッキング性が良好で全く転写不良を生ずること無く、且
つ、隠蔽性においても満足しうる製品を得ることが出来
る。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure-sensitive correction tape, and more particularly to a pressure-sensitive correction tape which does not cause a blocking phenomenon. 2. Description of the Related Art In recent years, pressure-sensitive transfer correction tapes have been widely used for correcting characters that cannot be easily erased and are erroneously recorded on paper or the like. The pressure-sensitive transfer correction tape basically consists of a white correction concealing layer composed of a white pigment and a resin on a sheet-like substrate, and a pressure-sensitive adhesive layer provided on the surface thereof for transferring to a corrected adherend. It has a structure and is conventionally known as a collection tape. This pressure-sensitive transfer correction tape is wound on a reel and mounted on a transfer holder for use. Then, press the pressure-sensitive transfer correction tape part of the transfer holder against the correction part, pull the holder while pressing strongly, and lift the holder at the correction end part, the pressure-sensitive adhesive layer and the white correction concealment layer are cut, and the correction tape becomes the correction part It is transferred uniformly and the correction is completed. This correction tape can be written directly with a writing instrument such as a ballpoint pen.
However, in the case of the pressure-sensitive transfer correction tape mounted on the conventional transfer holder described above, at the time of transfer correction, the peelability of the pressure-sensitive transfer correction tape from the substrate is poor, and uniform transfer cannot be performed. There have been problems such as that the corrected portion cannot be completely concealed, or that the tape of the transfer holder is difficult to wind up, resulting in running failure. [0003] In order to prevent this blocking phenomenon, the pressure-sensitive adhesive layer is made extremely thin at 0.8 to 1.6 µm, and the thickness of the pressure-sensitive adhesive layer and the modified concealing layer is reduced. There is a pressure-sensitive correction tape having a thickness ratio of 1:14 to 1:35 (JP-A-8-276695). However, since the pressure-sensitive adhesive layer is a thin film, the adhesion at the time of transfer may be weak, and the blocking phenomenon has not yet been completely eliminated. [0004] Therefore, as a result of various studies to solve the above problems, the average particle size was 1 to 10 µm.
The pressure-sensitive adhesive layer containing the silicone high-performance powder of the above is formed, and the thickness ratio of the pressure-sensitive adhesive layer and the correction concealment layer is adjusted to 1: 1 to 1: 4 to obtain a pressure-sensitive transfer correction tape. The present invention has been completed by finding a pressure-sensitive transfer correcting tape which improves the releasability from a base material, improves the cuttability of the adhesive layer during transfer, and does not impair any concealing properties. That is, the gist of the present invention is to provide a sheet-shaped substrate having a modified concealing layer on one surface, a surface-sensitive adhesive layer containing a high-performance silicone powder having an average particle diameter of 1 to 10 μm, and a pressure-sensitive adhesive layer. The ratio of the thickness of the adhesive layer to the thickness of the modified hiding layer is from 1: 1 to 1: 4.
It is a pressure-sensitive transfer correction tape characterized by the following. [0005] The substrate used in the present invention is not different from the conventionally used correction tape support, and may be a plastic substrate or a paper substrate. For example, polyester film such as polyethylene terephthalate, polypropylene film,
A polyethylene film or the like is preferable, and these substrates are preferably coated or compounded with a release agent in order to improve releasability. As the adhesive applied to the base material to form the pressure-sensitive adhesive layer, any adhesive such as a rubber-based, acrylic resin-based, rosin-based, or silicone-based adhesive can be used, but an acrylic resin-based adhesive is specifically preferred. . In the present invention, a silicone high-performance powder is dispersed in an adhesive obtained by dissolving or dispersing the pressure-sensitive adhesive in a solvent. Silicone high-performance powders can be dispersed regardless of whether these adhesives are organic or aqueous. The high-performance silicone powder to be dispersed in the adhesive has an average particle size of 1 to 10 μm, and most preferably 1 to 5 μm. When the thickness is 10 μm or more, the thickness of the adhesive layer is increased, and the above-described effects are not generated. On the other hand, if it is 1 μm or less, it is too fine to be well dispersed in the adhesive layer. Silicone high-performance powder is, for example, a finely powdered silicone having high hydrophobicity and excellent water repellency obtained by a special treatment such as crushing a highly three-dimensionally crosslinked silicone resin or silicone rubber. Insoluble in water, heat stable,
It exhibits weather resistance and has properties such as anti-blocking. Specifically, silicone resin powders R-930 and R-930 manufactured by Toray Dow Corning Silicone Co., Ltd.
935, silicone-based rubber powder E-605 and the like are preferable. As the silicone high-performance powder to be added to the adhesive, an addition amount of about 1% to 10% is usually sufficient, but is not limited to this amount. The correction concealing layer in the present invention is composed of a white pigment such as titanium dioxide, magnesium carbonate, silica or the like and a polymer resin as a binder, and is not different from those conventionally used for correction tapes. In the present invention, by setting the ratio of the thickness of the pressure-sensitive adhesive layer to the thickness of the correction concealing layer to 1: 1 to 1: 4, the adhesion to the adherend at the time of transfer is good, and the transferability, concealment, Writability can be improved. When the thickness ratio of the pressure-sensitive adhesive layer and the correction concealing layer is less than the above range, the concealing property is inferior, and when the ratio is more than the above range, the thickness increases, a blocking phenomenon occurs, and the winding of the pressure-sensitive transfer correction tape is lengthened. Can not. Examples and Comparative Examples Next, the present invention will be described specifically with reference to Examples and Comparative Examples. Examples 1 to 3 and Comparative Examples 1 to 5 A dispersion comprising titanium oxide, a resin and a solvent was applied to a polyester film substrate having a thickness of 40 μm to form a modified concealing layer. An adhesive in which silicone powder R-930 (manufactured by Dow Corning Toray Co., Ltd.) having the average particle diameter shown in No. 1 was dispersed was applied to form a pressure-sensitive adhesive layer. The thicknesses of the modified concealing layer and the pressure-sensitive adhesive layer were as shown in Table 1. The blocking and concealing properties of the obtained pressure-sensitive correction tape were measured, and the results are shown in Table 1. The blocking properties and hiding properties in Table 1 were determined by the following methods. Blocking property: A pressure-sensitive transfer correction tape is attached to the holder, and a 10 m transfer test is performed on a high-quality paper with a constant load.
It was examined whether or not transfer failure due to blocking occurred. 〇: no transfer failure 不良: 1 to 10 transfer failures ×: opacity with transfer failures of 10 or more locations:… Determine whether the characters of the copy can be read visually when the characters of the copy are corrected . 〇: Cannot read ×: Can read [0008] As described above, in the present invention, a pressure-sensitive adhesive layer containing a silicone high-functional powder having a specific average particle size is formed, and the pressure-sensitive adhesive layer and the modified concealing layer are formed. By setting the thickness ratio in a specific range, it is possible to obtain a product having good blocking properties, no transfer failure, and satisfactory concealing properties.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B43L 19/00 B44C 1/17 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 7 , DB name) B43L 19/00 B44C 1/17
Claims (1)
し、その表面に平均粒径１〜１０μｍのシリコーン高機
能パウダーを含有する感圧接着剤層からなり、かつ感圧
接着剤層と修正隠蔽層の厚さの比が１：１〜１：４であ
ることを特徴とする感圧転写修正テープ。(57) [Claim 1] A pressure-sensitive adhesive having a modified concealing layer on one surface of a sheet-like substrate, and containing a silicone high-functional powder having an average particle size of 1 to 10 µm on the surface. A pressure-sensitive transfer correction tape comprising a pressure-sensitive adhesive layer and a correction concealing layer having a thickness ratio of 1: 1 to 1: 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09056197A JP3503408B2 (en) | 1997-04-09 | 1997-04-09 | Pressure-sensitive transfer correction tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09056197A JP3503408B2 (en) | 1997-04-09 | 1997-04-09 | Pressure-sensitive transfer correction tape |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10278489A JPH10278489A (en) | 1998-10-20 |
| JP3503408B2 true JP3503408B2 (en) | 2004-03-08 |
Family
ID=14001843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09056197A Expired - Fee Related JP3503408B2 (en) | 1997-04-09 | 1997-04-09 | Pressure-sensitive transfer correction tape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3503408B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3705325B2 (en) * | 1998-06-10 | 2005-10-12 | 株式会社トンボ鉛筆 | Pressure sensitive transfer correction tape |
| JP2005212158A (en) * | 2004-01-27 | 2005-08-11 | Tombow Pencil Co Ltd | Pressure-sensitive transfer correction tape |
-
1997
- 1997-04-09 JP JP09056197A patent/JP3503408B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10278489A (en) | 1998-10-20 |
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|---|---|---|---|
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