JP2005014448A - Pressure sensitive transfer correcting tape - Google Patents

Pressure sensitive transfer correcting tape Download PDF

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Publication number
JP2005014448A
JP2005014448A JP2003183608A JP2003183608A JP2005014448A JP 2005014448 A JP2005014448 A JP 2005014448A JP 2003183608 A JP2003183608 A JP 2003183608A JP 2003183608 A JP2003183608 A JP 2003183608A JP 2005014448 A JP2005014448 A JP 2005014448A
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JP
Japan
Prior art keywords
layer
pigment
pressure
transfer
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.)
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JP2003183608A
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Japanese (ja)
Inventor
Noboru Suguro
勝呂登
Tsutomu Hayashi
林努
Hideki Suematsu
末松英樹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujicopian Co Ltd
Original Assignee
Fuji Kagakushi Kogyo Co Ltd
Fujicopian Co Ltd
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Application filed by Fuji Kagakushi Kogyo Co Ltd, Fujicopian Co Ltd filed Critical Fuji Kagakushi Kogyo Co Ltd
Priority to JP2003183608A priority Critical patent/JP2005014448A/en
Publication of JP2005014448A publication Critical patent/JP2005014448A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a pressure-sensitive transfer correcting tape, which can easily be colorable to color as near as possible to the ground color of a recycled paper in order to correct characters or the like formed on the recycled paper. <P>SOLUTION: In the pressure-sensitive transfer correcting tape, which is formed by providing a concealing layer consisting of colorant and binder resin and a adhesive layer on one side of a film base material, the whiteness of a transferring layer combining the concealing layer and the adhesive layer thereinto is set to be not more than 70%. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】本発明は、紙面などに誤って記録された文字などを隠蔽修正するために使用される感圧転写修正テープに関する。
【0002】
【従来の技術】この種の感圧転写修正テープは従来から知られており、基本的には、基材上に白色顔料などの顔料とバインダーとからなる隠蔽層、粘着層を順次積層した構造のものである。基材としては一般にグラシン紙やプラスチックフィルムが使用されている。通常、この感圧転写修正テープは手持タイプの転写具に装着して使用される。
この転写具は、基本的には、ケース(ホルダー)と、感圧転写修正テープの繰出しリールおよび巻取りリールと、感圧転写修正テープを被転写面に押しつけるための転写ヘッドとから構成されている。前記転写ヘッドを被転写面に押しつけた状態でホルダーを動かすと、繰出しリールから修正テープが繰り出され、順次転写ヘッドで被転写面に押圧され粘着層側で接着される。一方、基材はヘッドを通過した後、転写層(隠蔽層と粘着層の積層物)から分離され、巻取りリールに巻取られる。被転写面の修正部分への転写層の転写が終了した時点で転写ヘッドを被転写面に強く押しつけたのちホルダーを持ちあげると、転写層が切断され、修正操作が完了する。被転写面に転写された転写層の隠蔽層上にはボールペンなどの筆記具で文字などを書くことができる。
【0003】
被転写面は、一般には白色の紙であるが、近年、環境問題から再生紙が使用される場合がある。この再生紙は、一般の白色の紙よりも若干着色されている。そのため、従来の白色の紙に色合わせした修正テープでは、修正個所が目立ってしまう。そこで、修正個所を目立たなくするために、修正テープの隠蔽層に再生紙の地色とほぼ同じ色になるように、白色顔料に白色以外の着色剤を加えて色彩を調整している。(例えば特許文献1参照。)。
しかしながら、この再生紙の地色は紙により微妙に色が異なるので、着色剤を変えても色彩の微調整がしにくいという問題があった。
【特許文献1】
特開平6−92085号 (第4頁
【0004】〜
【0005】)
【0006】
【発明が解決しようとする課題】
本発明は、前記の点に鑑みて、微妙に異なる再生紙の地色にできる限り近い色彩に簡単に着色できる感圧転写修正テープを提供することを課題とする。
【0007】
【課題を解決するための手段】
請求項1に係る発明は、フィルム基材の片面に、着色剤およびバインダー樹脂からなる隠蔽層と、粘着層が順次設けられてなる感圧転写修正テープにおいて、前記隠蔽層と前記粘着層を併せた転写層の白色度が70%以下であることを特徴とする感圧転写修正テープによりこの課題を解決した。
【0008】
請求項2に係る発明は、前記着色剤の顔料が、白色顔料と黄色顔料0.01〜1.2%、赤色顔料0.01〜1.2%、青色顔料0.01〜1.2%含有されていることを特徴とする請求項1記載の感圧転写修正テープである。
【作用】
本発明においては、修正テープの着色剤の顔料として、白色顔料に色の3原色である黄色顔料、赤色顔料、青色顔料を添加することにより、あらゆる色が調色 できるので、白色以外の再生紙の地色と同色に着色できる。
【0009】
したがって、本発明の感圧転写修正テープは、再生紙の地色と同色の修正テープを簡単に作成できることとなった。
【0010】
【発明の実施の形態】
以下本発明を詳細に説明する。
本発明の感圧転写修正テープは、基材としてのプラスチックフィルムの片面上に、隠蔽層、粘着層を順次設けた構成のものである。
前記プラスチックフィルムとしては、ポリエチレンテレフタレート(PET)フィルムなどのポリエステルフィルム、ポリエチレンフィルム、ポリプロピレンフィルムなどを用いることができる。強度面から、ポリエステルフイルムが特に好ましい。プラスチックフィルムの厚さは3〜25μm、なかんずく4.5〜12μmが好ましい。プラスチックフィルムの厚さが薄すぎると、離型処理などの加工時の生産性が低下する。またプラスチックフィルムの厚さが厚すぎると、長尺化が困難になる。
【0011】
基材としてのプラスチックフィルムの片面(隠蔽層、粘着層を設ける側の面)に必要に応じて、シリコーン系樹脂やフッ素系樹脂などからなる離型層を形成して、隠蔽層のフィルム基材からの剥離性を向上するようにしてもよい。また前記プラスチックフィルム裏面(隠蔽層、粘着層を設ける側と反対側の面をいう、以下同様)には、必要に応じて、シリコーン系樹脂やフッ素系樹脂などからなる背面層を形成して、保存中における粘着層とプラスチックフィルム裏面との間の接着(ブロッキング)を防止するようにしてもよい。
【0012】
本発明における隠蔽層としては、バインダー、顔料および充填剤と、要すれば分散剤などの添加剤とからなるものである。
【0013】
本発明における隠蔽層に使用するバインダーとしては、ゴム状の樹脂とガラス状の樹脂との組み合わせからなるものが好適に使用できる。
【0014】
前記ゴム状の樹脂としては、可塑剤を少量しか含まなくとも柔軟性を有するものが好ましく、たとえばスチレン−ブタジエン−スチレンブロック共重合体(SBS)、スチレン−エチレン−ブタジエン−スチレンブロック共重合体(SEBS)、スチレン−ブタジエンゴム、スチレン−イソプレン−スチレンブロック共重合体(SIS)、ウレタンゴム、アクリロニトリル−ブタジエンゴム、エチレン−酢酸ビニル共重合体、エチレン−エチルアクリレート共重合体、クロロスルホン化ポリエチレン、環化ゴムなど通常の合成ゴムないしエラストマーなどの1種または2種以上があげられる。
【0015】
また前記ガラス状の樹脂としては、伸び率が小さく、融点ないし軟化点が100℃以上、かつ高硬度のものが好ましく、たとえば飽和または不飽和の脂環族炭化水素樹脂、スチレン−アクリル系共重合体樹脂、ケトン樹脂、ポリエチレン、ポリプロピレンなどのポリオレフィン樹脂などの1種または2種以上があげられる。
【0016】
前記ゴム状の樹脂とガラス状の樹脂の配合割合は、ゴム状の樹脂10重量部に対してガラス状の樹脂2〜30重量部、好ましくは5〜15重量部である。ガラス状の樹脂の割合が前記範囲を超えると、隠蔽層の柔軟性が失われ、転写時に転写層のひび割れが生じやすくなる。ガラス状の樹脂の割合が前記範囲未満では、筆記性が低下するほか隠蔽層の切断性が低下する。バインダーをゴム状の樹脂のみで構成すると切断性はより低下する。
【0017】
前記隠蔽層は良好な切断性をうる点から、通常充填剤が混合される。前記充填剤としては、たとえば炭酸マグネシウム、炭酸カルシウム、炭酸バリウム、硫酸バリウム、酸化アルミニウム、二酸化ケイ素、セライト、クレー、タルクなどがあげられる。充填剤の粒径は1〜20μmの範囲が好ましい。粒径が前記範囲より小さいと切断性が低下し、一方前記範囲より大きいと隠蔽層の強度が低下する傾向がある。
【0018】
前記充填剤はバインダー10重量部に対して5〜40重量部、好ましくは5〜18重量部の割合で混合される。充填剤の割合が前記範囲より多いといわゆるチョーキング現象が発生し、一方充填剤の割合が前記範囲より少ないと隠蔽層の切断性が劣化する傾向がある。
【0019】
前記顔料としては、通常修正する対象物は白色の紙であることから、白色顔料として、酸化チタンが隠蔽性が優れている点から主として用いられる。しかし、再生紙のように対象物が白色以外のときは、隠蔽層を対象物の地色とほぼ同色に着色し、修正部分が他の部分と比べて目立たないようにする。そのために色彩を調整する目的で色の3原色となる着色顔料を使用する。その着色顔料としては、チタンイエロー、酸化鉄系、群青、コバルトブルー、酸化クロムグリーン、黄鉛、クロムバーミリオン、カドミウムエロー、カドミウムレッドなどの無機顔料、アゾレーキ系、ハンザ系、ベンズイミダゾロン系、モノアゾ系、ピラゾロン系、縮合アゾ系、フタロシアニン系、キナクリドン系、ペリレン系、ジオキサジン系、アントラキノン系、イソインドリノン系などの有機顔料があげられる。その他、色彩調整剤として、たとえばアルミニウム粉末、銅粉末、真鍮粉末、染料などを添加してもよい。
【0020】
着色顔料の使用量はバインダーに対する分散性、隠蔽力などにもよるが、バインダー10部に対して5〜40部、好ましくは20〜30部である。着色顔料の使用量が多すぎると隠蔽層の表面に顔料粉が析出するチョーキング現象が発生し、使用量が少なすぎる場合には隠蔽力が不足する傾向がある。
【0021】
次に隠蔽層を白色以外の再生紙の地色と同色に着色するため、白色顔料に白色以外の前記着色顔料をそれぞれ黄色顔料0.01〜1.2%、赤色顔料0.01〜1.2%、青色顔料0.01〜1.2%の範囲内で添加量を調整して加える。
【0022】
前記隠蔽層は、前記べヒクル成分の有機溶剤溶液、有機溶剤分散液または水性分散液(エマルジョンを含む)に顔料、必要により充填剤などを配合した塗工液を基材上に塗布、乾燥することによって形成できる。
【0023】
前記隠蔽層の乾燥後の厚さは10〜30μmが好ましい。厚さが前記範囲未満では隠蔽力が不足し、一方厚さが前記範囲を超えると、転写の際の切断性が低下し、さらに修正後の用紙をコピーしたときに、修正部分と未修正部分との境界が影となってコピーされて見苦しくなる傾向がある。
【0024】
前記隠蔽層のフィルム基材からの剥離力は30〜100mN/25mmの範囲にあることが適当である。剥離力が前記範囲未満であると、転写層の不必要部分まで転写してキレ性が低下するとともに、耐ブロッキング性が低下する。一方剥離力が前記範囲より大きいと、局部的な非転写などが生じ、転写性が劣る傾向がある。
【0025】
粘着層は厚さが0.5〜1.8μmで、かつ粘着層と隠蔽層の膜厚の比が1:13〜1:35の範囲であり、PPC用紙に対する粘着力が、50〜350mN/25mmである。
【0026】
粘着層の粘着力が前記範囲未満では、粘着力が不足し、局部的な非転写などが生じ、転写性が劣ると共に、転写後の浮き、剥れなどが生じる傾向がある。一方粘着層の粘着力が前記範囲を超えると、粘着力が過剰となり、感圧転写修正テープをロール状に巻回して保存する場合にブロッキングが起る傾向にあり、とくに高温高湿条件下で保存した場合や、堅く巻いた場合にその傾向が強い。その結果、手持ちタイプの転写具に感圧転写修正テープのロールを装着して使用する際、巻出し時に粘着層が剥離したり、走行不良を生じ、使用が困難となる。
【0027】
前記粘着層に用いる粘着剤としては、粘着層の厚さを前記特定範囲にしたときに、前記特定範囲の粘着力を示すものであればとくに限定されず、たとえばアクリル樹脂系、ロジン系、ゴム系、ビニルエーテル樹脂系、ポリイソブチレン系などの粘着剤が使用できる。とくにアクリル樹脂系、ロジン系などの粘着剤が好ましい。
【0028】
粘着層は、前記粘着剤の有機溶剤溶液、有機溶剤分散液、水性溶液または水性分散液(エマルジョンを含む)を隠蔽層上に塗布、乾燥することによって形成できる。とくに水性溶液または水性分散液の形態で塗布するのが好ましい。それはこれらを用いると、すでに形成されている隠蔽層の再溶解が生じないためである。水性溶液または水性分散液の形態の場合は、湿潤剤または界面活性剤を配合してもよい。
鋭意研究の結果、修正テープの隠蔽層中の着色剤である白色顔料に、黄色顔料0.01〜1.2%、赤色顔料0.01〜1.2%、青色顔料0.01〜1.2%の範囲内で添加させることで、簡単に再生紙の地色と同色に着色できることを見出した。
【0029】
つぎに本発明の実施例をあげて具体的に説明するが、本発明はこれに限定されるものではない。
【0030】
【実施例】実施例1および比較例1
基材として厚さ12μmのポリエチレンテレフタレートフィルムの片面側に、シリコーン系樹脂からなる離型剤をコーターにて塗布、乾燥して離型層をそれぞれ形成した。
次に、離型層の反対側の面に、シリコーン系樹脂からなる背面剤をコーターにて塗布、乾燥して背面層をそれぞれ形成した。
【0031】
続いて表1に示す処方の隠蔽層を、それぞれの前記基材フィルムの離型層上に形成した。
すなわち表1に示す材料の内、先ずトルオールに樹脂を溶解させ、次にその液に顔料を所定量添加した後分散し、塗工液を調製した。この塗工液をコーターで乾燥後の厚さが所定の厚さになるように、フィルム基材の離型層上に塗布し、乾燥した。
【0032】
つぎに、前記隠蔽層の表面にアクリル系粘着剤の水性分散液(固形分20重量%)を乾燥後に厚さが所定厚さになるように塗布、乾燥して粘着層を形成し、感圧転写修正テープを得た。
【0033】
前記実施例1および比較例1でえられた感圧転写修正テープについて、つぎの項目を評価した。結果は表2に示す。
(1)色差(ΔE)
色差は、X−Rite社製のX−Rite938で測定した。その測定方法は、先ず、色度をL 、a 、b 、光源をD65とし、光源からの光の透過を防ぐために再生紙10枚を重ねる。次に、その重ねた再生紙上に修正テープを転写し、修正テープと再生紙の色度L 、a 、b の絶対値をそれぞれ回測定して、その平均値を求める。次に、修正テープと再生紙の各色度L 、a 、b 、の差ΔL 、Δa 、Δb を求め、色差ΔEを下式で算出する
ΔE=√((ΔL +(Δa +(Δb
そのΔEが2.0以下(対サンエースR100)のこと。
(2)白色度
白色度は、JIS8148 2001、紙 板紙及びパルプーISO白色度測定法に基づき測定し、その白色度が70%以下のこと。
(3)剥離力
剥離力は、180度ピール試験機で測定した。その測定方法は、修正テープ上に厚さ12μmの粘着テープを押圧荷重20Nで貼り付けた後、25mm幅で長さ100mmに切断し、枚のサンプルを作成する。そのサンプルを180度ピール試験機に取り付け、粘着テープ端を180度方向に剥離速度1.2m/分で剥離させて、基材と転写層との密着力を3回測定し、その平均値を求める。
その密着力は、63.7±23mN/25mm以内のこと。
(4)粘着力
粘着力も180度ピール試験機で測定した。その測定方法は、修正テープをPPC用紙に押圧荷重20Nで貼り付けた後、基材を剥離してその上に粘着テープを押圧荷重20Nで貼り付け、25mm幅で長さ100mmに切断し、枚のサンプルを作成する。そのサンプルを180度ピール試験機に取り付け、粘着テープ端を180度方向に剥離速度1.2m/分で剥離させて、PPC用紙と転写層との密着力を3回測定し、その平均値を求める。
その粘着力は、118±74mN/25mm以内のこと。
【0034】
表2から、実施例1は、白色度が70%以下であり、その他の修正テープの規格も満たしていることがわかる。これに対して、比較例1は、白色度等が満足しえないことがわかる。
【0035】
【表1】

Figure 2005014448
【0036】
【表2】
Figure 2005014448
【0037】
【発明の効果】
本発明においては、修正テープの着色剤の顔料である白色顔料に色の3原色である黄色顔料、赤色顔料、青色顔料を添加・調整するだけで、簡単に白色以外の再生紙の地色と同色に着色できるという効果がある。[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure-sensitive transfer correction tape used for concealing correction of characters or the like that are erroneously recorded on paper.
[0002]
2. Description of the Related Art This type of pressure-sensitive transfer correction tape has been known in the past, and basically has a structure in which a concealing layer composed of a pigment such as a white pigment and a binder and an adhesive layer are sequentially laminated on a base material. belongs to. As the substrate, glassine paper or plastic film is generally used. Normally, this pressure-sensitive transfer correction tape is used by being mounted on a hand-held transfer tool.
This transfer tool basically includes a case (holder), a feeding reel and a take-up reel for the pressure-sensitive transfer correction tape, and a transfer head for pressing the pressure-sensitive transfer correction tape against the transfer surface. Yes. When the holder is moved in a state where the transfer head is pressed against the transfer surface, the correction tape is paid out from the supply reel, and is sequentially pressed against the transfer surface by the transfer head and bonded on the adhesive layer side. On the other hand, after passing through the head, the substrate is separated from the transfer layer (a laminate of the concealment layer and the adhesive layer) and wound on a take-up reel. When transfer of the transfer layer to the corrected portion of the transfer surface is completed, the transfer head is strongly pressed against the transfer surface and then the holder is lifted to cut the transfer layer and complete the correction operation. On the concealing layer of the transfer layer transferred to the transfer surface, characters can be written with a writing instrument such as a ballpoint pen.
[0003]
The transfer surface is generally white paper, but recently, recycled paper may be used due to environmental problems. This recycled paper is slightly more colored than ordinary white paper. For this reason, in the correction tape that is color-matched to the conventional white paper, the correction portion becomes conspicuous. Therefore, in order to obscure the modified location, to be substantially the same color as the background color of the recycled paper hiding layer of correction tape, and adjust the color by adding white non colorants white pigment. (For example, refer to Patent Document 1).
However, since the ground color of the recycled paper is slightly different depending on the paper, there is a problem that it is difficult to finely adjust the color even if the colorant is changed.
[Patent Document 1]
JP-A-6-92085 (Page 4, [0004]
0005)
[0006]
[Problems to be solved by the invention]
In view of the above-described points, an object of the present invention is to provide a pressure-sensitive transfer correction tape that can be easily colored in a color as close as possible to the background color of slightly different recycled paper.
[0007]
[Means for Solving the Problems]
The invention according to claim 1 is a pressure-sensitive transfer correction tape in which a concealing layer made of a colorant and a binder resin and an adhesive layer are sequentially provided on one side of a film base material, and the concealing layer and the adhesive layer are combined. This problem was solved by a pressure-sensitive transfer correction tape characterized in that the whiteness of the transfer layer was 70% or less.
[0008]
In the invention according to claim 2, the pigment of the colorant is a white pigment and a yellow pigment of 0.01 to 1.2%, a red pigment of 0.01 to 1.2%, and a blue pigment of 0.01 to 1.2%. The pressure-sensitive transfer correction tape according to claim 1, which is contained.
[Action]
In the present invention, any color can be adjusted by adding a yellow pigment, a red pigment, and a blue pigment, which are the three primary colors, to the white pigment as the colorant pigment of the correction tape. Can be colored the same color as
[0009]
Therefore, the pressure-sensitive transfer correction tape of the present invention can easily prepare a correction tape having the same color as the background color of recycled paper.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described in detail below.
The pressure-sensitive transfer correction tape of the present invention has a structure in which a concealing layer and an adhesive layer are sequentially provided on one side of a plastic film as a substrate.
As said plastic film, polyester films, such as a polyethylene terephthalate (PET) film, a polyethylene film, a polypropylene film, etc. can be used. From the viewpoint of strength, a polyester film is particularly preferable. The thickness of the plastic film is preferably 3 to 25 μm, especially 4.5 to 12 μm. If the thickness of the plastic film is too thin, productivity at the time of processing such as mold release processing is lowered. Moreover, if the thickness of the plastic film is too thick, it is difficult to make the length longer.
[0011]
If necessary, a release layer composed of a silicone resin or a fluorine resin is formed on one side of the plastic film as the base (the side on which the concealing layer or adhesive layer is provided) to form a film base for the concealing layer You may make it improve the peelability from. In addition, on the back surface of the plastic film (the surface opposite to the side on which the concealment layer and the adhesive layer are provided, the same applies hereinafter), if necessary, a back layer made of a silicone resin or a fluorine resin is formed, You may make it prevent adhesion | attachment (blocking) between the adhesion layer and the plastic film back surface during a preservation | save.
[0012]
The concealing layer in the present invention is composed of a binder, a pigment and a filler and, if necessary, an additive such as a dispersant.
[0013]
As the binder used for the concealing layer in the present invention, a binder comprising a combination of a rubber-like resin and a glass-like resin can be suitably used.
[0014]
As the rubber-like resin, those having flexibility even if containing only a small amount of plasticizer are preferable. For example, styrene-butadiene-styrene block copolymer (SBS), styrene-ethylene-butadiene-styrene block copolymer ( SEBS), styrene-butadiene rubber, styrene-isoprene-styrene block copolymer (SIS), urethane rubber, acrylonitrile-butadiene rubber, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, chlorosulfonated polyethylene, One type or two or more types of usual synthetic rubber or elastomer such as cyclized rubber may be mentioned.
[0015]
The glassy resin preferably has a low elongation, a melting point or a softening point of 100 ° C. or higher, and a high hardness, such as a saturated or unsaturated alicyclic hydrocarbon resin, styrene-acrylic copolymer. One type or two or more types such as a coalesced resin, a ketone resin, a polyolefin resin such as polyethylene and polypropylene can be used.
[0016]
The blending ratio of the rubbery resin and the glassy resin is 2 to 30 parts by weight, preferably 5 to 15 parts by weight of the glassy resin with respect to 10 parts by weight of the rubbery resin. When the ratio of the glassy resin exceeds the above range, the flexibility of the concealing layer is lost, and the transfer layer is liable to crack during transfer. When the ratio of the glassy resin is less than the above range, the writing property is lowered and the cutting property of the concealing layer is lowered. If the binder is composed of only a rubber-like resin, the cutting property is further lowered.
[0017]
The concealing layer is usually mixed with a filler from the viewpoint of obtaining good cutting properties. Examples of the filler include magnesium carbonate, calcium carbonate, barium carbonate, barium sulfate, aluminum oxide, silicon dioxide, celite, clay, and talc. The particle size of the filler is preferably in the range of 1 to 20 μm. When the particle size is smaller than the above range, the cutting property is lowered. On the other hand, when the particle size is larger than the above range, the strength of the masking layer tends to be lowered.
[0018]
The filler is mixed in an amount of 5 to 40 parts by weight, preferably 5 to 18 parts by weight, based on 10 parts by weight of the binder. When the proportion of the filler is larger than the above range, a so-called choking phenomenon occurs. On the other hand, when the proportion of the filler is smaller than the above range, the cutting property of the concealing layer tends to deteriorate.
[0019]
As the pigment, since the object to be normally corrected is white paper, titanium oxide is mainly used as the white pigment because it has excellent concealability. However, when the object is other than white, such as recycled paper, the concealment layer is colored in substantially the same color as the background color of the object so that the corrected portion is not noticeable compared to other portions. Therefore, for the purpose of adjusting the color, a color pigment that becomes the three primary colors is used. As the coloring pigment, inorganic pigments such as titanium yellow, iron oxide, ultramarine, cobalt blue, chrome oxide green, yellow lead, chrome vermilion, cadmium yellow, cadmium red, azo lake, hansa, benzimidazolone, Examples thereof include organic pigments such as monoazo, pyrazolone, condensed azo, phthalocyanine, quinacridone, perylene, dioxazine, anthraquinone, and isoindolinone. In addition, as a color adjusting agent, for example, aluminum powder, copper powder, brass powder, dye, and the like may be added.
[0020]
The amount of the color pigment used is 5 to 40 parts, preferably 20 to 30 parts, based on 10 parts of the binder, although it depends on the dispersibility and hiding power of the binder. When the amount of the colored pigment used is too large, a choking phenomenon occurs in which pigment powder is deposited on the surface of the concealing layer, and when the amount used is too small, the concealing power tends to be insufficient.
[0021]
Next, in order to color the concealment layer in the same color as the ground color of the recycled paper other than white , the above-mentioned color pigment other than white is added to the white pigment in a yellow pigment of 0.01 to 1.2%, and the red pigment of 0.01 to 1. 2%, blue pigment is added within the range of 0.01 to 1.2%, the addition amount is adjusted.
[0022]
The concealing layer is formed by applying and drying a coating liquid in which a pigment, and, if necessary, a filler is blended in an organic solvent solution, an organic solvent dispersion or an aqueous dispersion (including an emulsion) of the vehicle component, on a substrate. Can be formed.
[0023]
The thickness of the masking layer after drying is preferably 10 to 30 μm. If the thickness is less than the above range, the hiding power is insufficient. On the other hand, if the thickness exceeds the above range, the cutting performance at the time of transfer deteriorates, and further, when the corrected paper is copied, the corrected portion and the uncorrected portion. There is a tendency for the boundary between and to be copied and become unsightly.
[0024]
The peeling force of the masking layer from the film substrate is suitably in the range of 30 to 100 mN / 25 mm. When the peeling force is less than the above range, transfer is performed to an unnecessary portion of the transfer layer, the sharpness is lowered, and the blocking resistance is lowered. On the other hand, when the peeling force is larger than the above range, local non-transfer occurs and the transferability tends to be inferior.
[0025]
The pressure-sensitive adhesive layer has a thickness of 0.5 to 1.8 μm, and the ratio of the film thickness of the pressure-sensitive adhesive layer to the concealing layer is in the range of 1:13 to 1:35, and the pressure-sensitive adhesive force to PPC paper is 50 to 350 mN / 25 mm.
[0026]
When the adhesive strength of the adhesive layer is less than the above range, the adhesive strength is insufficient, local non-transfer occurs, the transferability is inferior, and there is a tendency for floating and peeling after transfer. On the other hand, if the adhesive strength of the adhesive layer exceeds the above range, the adhesive strength becomes excessive, and blocking tends to occur when the pressure-sensitive transfer correction tape is wound and stored in a roll shape, particularly under high temperature and high humidity conditions. This tendency is strong when stored or rolled tightly. As a result, when a roll of pressure-sensitive transfer correction tape is used on a hand-held type transfer tool, the adhesive layer peels off during unwinding or runs poor, making it difficult to use.
[0027]
The pressure-sensitive adhesive used in the pressure-sensitive adhesive layer is not particularly limited as long as the pressure-sensitive adhesive layer has a thickness within the specific range and exhibits the specific range of adhesive force. For example, acrylic resin, rosin, rubber Type, vinyl ether resin type, polyisobutylene type adhesives and the like can be used. Particularly preferred are adhesives such as acrylic resin and rosin.
[0028]
The pressure-sensitive adhesive layer can be formed by applying and drying an organic solvent solution, an organic solvent dispersion, an aqueous solution or an aqueous dispersion (including an emulsion) of the pressure-sensitive adhesive on the masking layer. It is particularly preferable to apply in the form of an aqueous solution or an aqueous dispersion. This is because when these are used, re-dissolution of the already formed concealing layer does not occur. In the case of an aqueous solution or aqueous dispersion, a wetting agent or a surfactant may be added.
As a result of intensive studies, yellow pigments 0.01 to 1.2%, red pigments 0.01 to 1.2%, blue pigments 0.01 to 1.% are added to the white pigment as the colorant in the masking layer of the correction tape. It was found that by adding it within the range of 2%, it can be easily colored to the same color as the ground color of recycled paper.
[0029]
Next, the present invention will be specifically described with reference to examples, but the present invention is not limited thereto.
[0030]
EXAMPLES Example 1 and Comparative Example 1
On one side of a polyethylene terephthalate film having a thickness of 12 μm as a substrate, a release agent composed of a silicone resin was applied with a coater and dried to form release layers.
Next, on the opposite side of the release layer, a back agent made of silicone resin was applied with a coater and dried to form back layers.
[0031]
Subsequently, a concealing layer having a formulation shown in Table 1 was formed on the release layer of each of the substrate films.
That is, among the materials shown in Table 1, first, a resin was dissolved in toluene, and then a predetermined amount of pigment was added to the liquid and then dispersed to prepare a coating liquid. This coating solution was applied onto the release layer of the film substrate and dried so that the thickness after drying with a coater would be a predetermined thickness.
[0032]
Next, an aqueous dispersion of acrylic pressure-sensitive adhesive (solid content 20% by weight) is applied to the surface of the concealing layer so that the thickness becomes a predetermined thickness after drying, and a pressure-sensitive adhesive layer is formed by drying. A transfer correction tape was obtained.
[0033]
The following items were evaluated for the pressure-sensitive transfer correction tape obtained in Example 1 and Comparative Example 1. The results are shown in Table 2.
(1) Color difference (ΔE)
The color difference was measured with X-Rite 938 manufactured by X-Rite. In the measurement method, first, chromaticity is L * , a * , b * , the light source is D65, and 10 sheets of recycled paper are stacked in order to prevent light from being transmitted from the light source. Next, transferring the correction tape to the paper reproduction thereof superimposed, correction tape and recycled paper chromaticity L *, a *, b * , the absolute value was measured 5 times respectively, Ru obtains the average value. Next, differences ΔL * , Δa * , Δb * between the chromaticities L * , a * , b * between the correction tape and the recycled paper are obtained, and the color difference ΔE is calculated by the following equation .
ΔE = √ ((ΔL * ) 2 + (Δa * ) 2 + (Δb * ) 2 )
That ΔE is 2.0 or less (vs. Sanace R100).
(2) Whiteness Whiteness is measured based on JIS81482001, paper board and pulp-ISO whiteness measurement method, and the whiteness is 70% or less.
(3) Peeling force Peeling force was measured with a 180 degree peel tester. In the measurement method, an adhesive tape having a thickness of 12 μm is stuck on a correction tape with a pressing load of 20 N, and then cut to a length of 25 mm and a length of 100 mm to prepare three samples. The sample was attached to a 180 degree peel tester, the end of the adhesive tape was peeled off in the 180 degree direction at a peeling speed of 1.2 m / min, and the adhesion between the substrate and the transfer layer was measured three times. Ask.
The adhesion should be within 63.7 ± 23mN / 25mm.
(4) Adhesive strength The adhesive strength was also measured with a 180 degree peel tester. The measuring method is that after the correction tape is attached to the PPC paper with a pressing load of 20N , the base material is peeled off, and the adhesive tape is attached thereon with the pressing load of 20N, and the 25 mm width is cut into a length of 100 mm. Create three samples. The sample was attached to a 180 degree peel tester, the end of the adhesive tape was peeled off in the 180 degree direction at a peeling speed of 1.2 m / min, and the adhesion between the PPC paper and the transfer layer was measured three times. Ask.
Its adhesive strength should be within 118 ± 74mN / 25mm.
[0034]
From Table 2, it can be seen that Example 1 has a whiteness of 70% or less and satisfies the standards of other correction tapes. On the other hand, it turns out that the comparative example 1 cannot satisfy whiteness etc.
[0035]
[Table 1]
Figure 2005014448
[0036]
[Table 2]
Figure 2005014448
[0037]
【The invention's effect】
In the present invention, by simply adding and adjusting the three primary colors yellow pigment, red pigment, and blue pigment to the white pigment that is the colorant pigment of the correction tape, the background color of recycled paper other than white can be easily adjusted. There is an effect that it can be colored in the same color.

Claims (2)

フィルム基材の片面に、着色剤およびバインダー樹脂からなる隠蔽層と、粘着層が順次設けられてなる感圧転写修正テープにおいて、前記隠蔽層と前記粘着層を併せた転写層の白色度が70%以下であることを特徴とする感圧転写修正テープ。In a pressure-sensitive transfer correction tape in which a concealing layer made of a colorant and a binder resin and an adhesive layer are sequentially provided on one side of a film base material, the whiteness of the transfer layer including the concealing layer and the adhesive layer is 70. % Pressure-sensitive transfer correction tape characterized by 前記着色剤の顔料が、白色顔料と黄色顔料0.01〜1.2%、赤色顔料0.01〜1.2%、青色顔料0.01〜1.2%含有されていることを特徴とする請求項1記載の感圧転写修正テープ。The pigment of the colorant contains a white pigment and a yellow pigment of 0.01 to 1.2%, a red pigment of 0.01 to 1.2%, and a blue pigment of 0.01 to 1.2%. The pressure-sensitive transfer correction tape according to claim 1.
JP2003183608A 2003-06-26 2003-06-26 Pressure sensitive transfer correcting tape Pending JP2005014448A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007001220A (en) * 2005-06-27 2007-01-11 Tombow Pencil Co Ltd Pressure-sensitive transfer correcting tape and ink used for it
CN106957618A (en) * 2015-12-10 2017-07-18 科络普拉斯特弗里茨米勒有限公司 Resistant to elevated temperatures colored particularly orange adhesive tape and methods for making them and carrier and the bunch of cables with such adhesive tape

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007001220A (en) * 2005-06-27 2007-01-11 Tombow Pencil Co Ltd Pressure-sensitive transfer correcting tape and ink used for it
JP4530360B2 (en) * 2005-06-27 2010-08-25 株式会社トンボ鉛筆 Pressure-sensitive transfer correction tape and ink used therefor
CN106957618A (en) * 2015-12-10 2017-07-18 科络普拉斯特弗里茨米勒有限公司 Resistant to elevated temperatures colored particularly orange adhesive tape and methods for making them and carrier and the bunch of cables with such adhesive tape

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