JPH0481188B2 - - Google Patents

Info

Publication number
JPH0481188B2
JPH0481188B2 JP59155193A JP15519384A JPH0481188B2 JP H0481188 B2 JPH0481188 B2 JP H0481188B2 JP 59155193 A JP59155193 A JP 59155193A JP 15519384 A JP15519384 A JP 15519384A JP H0481188 B2 JPH0481188 B2 JP H0481188B2
Authority
JP
Japan
Prior art keywords
paper
adhesive
printing
sheets
photoreceptor
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
Application number
JP59155193A
Other languages
Japanese (ja)
Other versions
JPS6134553A (en
Inventor
Hiroyoshi Hosomura
Hideyo Kito
Yosha Fukakusa
Tsutomu Sakai
Yasuo Yamada
Takeshi Kobayashi
Hidehito Sugawara
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP15519384A priority Critical patent/JPS6134553A/en
Publication of JPS6134553A publication Critical patent/JPS6134553A/en
Publication of JPH0481188B2 publication Critical patent/JPH0481188B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G7/00Selection of materials for use in image-receiving members, i.e. for reversal by physical contact; Manufacture thereof
    • G03G7/0006Cover layers for image-receiving members; Strippable coversheets

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Paper (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

〔産業上の利用分野〕 本発明はゼログラフイー方式等のプリンターで
プリントを行うプリント用紙、詳しく言えば原紙
の紙面の所定部分に自着性接着剤を塗布したプリ
ント用紙に関するものである。 〔従来の技術〕 ゼログラフイー方式のプリンターとは、電子写
真方式によつて画像をプリント用紙に形成するプ
リンターあるいは複写機を言う。またプリント用
紙は紙面の所定部分に接着剤層を設けたもので、
画像を形成した後に折り合わせたり、複数枚を重
ね合わせて接着剤層部分同志を常温で賦活剤を用
いる事なく加圧のみによつて接着し、封書、葉
書、冊子等に仕上げる用途に使用される。 近年、事務処理の機械化に伴い、ゼログラフイ
ー方式のプリンターあるいは複写機に上記の性能
を有する接着剤をあらかじめ塗布したプリント用
紙を使用したいとの要求が高まつてきた。しかし
従来の低粘着性の感圧接着剤層を設けた連続伝票
用紙を単に断裁して枚葉にした用紙をゼログラフ
イー方式プリンターに使用する場合にはミスフイ
ード、重送、紙詰り等の紙送り不良、画像形成後
の熱カールによる排紙トレイ集積性不良が発生す
る。また特に加圧ロール転写方式のプリンターで
5000〜10000枚をプリントすると感光体上に粘着
剤が付着し、さらにその上にトナーが粘着し、そ
れが用紙の画像形成面に多数の黒点となつて現わ
れ使用できなくなるトラブルが発生する。あえて
使用する場合も感光体に付着した接着剤とトナー
の粘着物を溶剤等で拭いて、清掃しなければなら
ず、特に大量の枚数を処理する際には全く実用的
でない。また加圧ロール転写方式以外のゼログラ
フイープリンターでも接着剤が紙送り装置のゴム
ロールやゴムベルト、クリーニング装置、定着装
置等を汚染しトラブルの原因となる可能性があ
る。 〔発明が解決しようとする問題点〕 本発明はプリント用紙における前述の問題点を
解消し、走行性、集積性にすぐれ、感光体等に付
着する粘着剤によるトラブルの生じないプリント
用紙を提供することを目的とする。 〔問題点を解決するための手段及び作用〕 本発明者は感光体への接着剤の付着は、感圧粘
着剤の粘着性が基本的に高いためでであると判断
し、種々改良の方法を検討した。その結果天然ゴ
ム、合成ゴム、その他の結晶性の低い高分子を主
剤とする自着性接着剤を使用することにより、接
着剤の感光体への付着を防止でき、プリント黒点
を大巾に減少できること、またプリント後の接着
性も実用範囲に維持できることを見出し本発明を
完成した。 すなわち、本発明は、結晶性の低い高分子に粘
着付与剤を添加しまたは添加せず滑剤を含有させ
てなる自着性接着剤を、原紙紙面を所定部分に塗
布したことを特徴とするプリント用紙である。 本発明に使用する自着性接着剤は天然ゴム、イ
ソプレンゴム、スチレン・ブタジエンゴム、ポリ
イソブチレン等の合成ゴム、アクリル樹脂、シリ
コン樹脂、エポキシ樹脂、スチレン樹脂等の結晶
性の低い高分子に粘着性を減じるために滑剤とし
てパラフインワツクス、マイクロクリスタリンワ
ツクス、ポリエチレンワツクス等のワツクス類、
ステアリン酸、ラウリン酸等の高級脂肪酸、ステ
アリン酸アミド、パルミチン酸アミド等の脂肪酸
を配合したものである。この自着性接着剤の配合
処方は、大きく分けて二タイプある。一つは従来
のゴム系、アクリル系感圧接着剤の如くロジン、
ポリテルペン樹脂、石油樹脂等の粘着付与性樹
脂、ガラス転移点Tgが低く軟い高粘着性成分の
共重合やポリマーブレンド等によつてある程度の
粘着性を付与した上で、比較的多い割合で、上記
滑剤を配合するものである。他の一つは感圧接着
剤のように粘着付与成分を配合せず、粘着性の低
い天然ゴム、合成ゴム、結晶性の低い高分子に上
記滑剤を比較的少い割合で配合するものである。
前述したように、この接着剤は圧力を加えて密着
させると接着剤同志のみが接着し、接着剤のない
部分に接着しにくい性質が望まれる。この点で天
然ゴム、イソプレンゴムは自着性が高く、粘着性
が低い点から最も好ましい。これらの処方は感光
体への接着剤の付着、画像定着時にプリンター、
複写機の定着ロールに供給されている離型剤のシ
リコンオイルによる接着強度低下有無、接着後の
使用方法から要求される接着強度等使用条件によ
り適宜調整される。またこれらの接着剤を原紙に
塗布するための塗料は水系および有機溶剤系が製
造条件によつて選択される。原紙の塗布に際して
はバーコーター、ロールコーター、エアナイフコ
ーター等の塗工装置のフレキソ、グラビア、シル
クスクリーン等の印刷装置が使用できる。 本発明に使用する原紙の原材はパルプのうち80
重量%以上が広葉樹晒晒クラフトパルプであるこ
とが望ましい。 広葉樹晒クラフトパルプが80重量%未満である
と、プリンターや複写機で加熱された時に不適性
なカール形状になりやすい。また、これらのパル
プ叩解度(C.S.F)は410c.c.以上が望ましい。 一般上質紙、連続伝票用紙は強度を得るために
パルプ叩解度を400c.c.以下にすることが多いが用
紙の湿度による伸縮性が増加しカールが大きくな
るので望ましくない。抄紙はPH7未満の酸性系で
行われる場合が多いが、本発明で使用する原紙は
PH7以上の中性系でも抄紙可能である。 さらに内添およびサイズプレスで強度改善のた
めに付与されるでんぷんは2g/m2以下が望まし
い。でんぷんはパルプより吸湿性であり、連続伝
票用紙のように2g/m2以上添加されるとカール
性が悪化する。またカールの形状や大きさを安定
化させるために紙の抄造工程でワイヤパートでの
繊維配向やプレスパートの脱水条件のコントロー
ル、ドライパートの上、下段ドライシリンダーの
表面温度差およびカレンダーのニツプ数またはニ
ツプ圧のコントロールのような微妙なコントロー
ルが実施される。また巻取、断裁工程でデカーラ
ーにより、物理的なカールの矯正を行うことがあ
る。またカール性の安定化のための製造工程で水
分コントロールを実施し、製品水分を適正に調整
し、更に防湿包装でそれを維持することが実施さ
れる。更に適当なコピー画像濃度を維持し、バツ
クグランド(白紙部分)の汚れを防ぐために、塩
化ナトリウム、塩化カリウム、スチレン−マレイ
ン酸コポリマー、第四級アンモニウム塩等の導電
剤を抄紙機のサイズプレスで表面塗布して転写紙
の表面電気抵抗(JISC−2111による)を109
1010Ω(湿度(R.H)65%、温度20℃)にしてい
る。またコピー画像部の鮮鋭度を向上させるため
に表面の凹凸を少なくして転写紙の平滑度
(JISP−8119による)を20秒以上にしている。ま
た本発明のプリント用紙はその用途によつてミシ
ン目加工、穴あけ加工および印刷が実施される。 〔実施例〕 次に実施例および比較例により本発明のプリン
ト用紙について説明する。 実施例1〜5、比較例1〜4 L−BKP(広葉樹晒クラフトパルプ)90重量部
とN−BKP(針葉樹晒クラフトパルプ)10重量部
を適宜叩解して、内添薬品(タルク、ロシンサイ
ズ、硫酸バン土)を使用して長網式抄紙機にて
430〜450m/分で抄造した。また抄紙機のサイズ
プレスで導電剤(塩化ナトリウム)とともにでん
ぷんを2g/m2塗布した。この原紙を使用して表
1に示すような接着剤をフレキソ方式の印刷機を
使用して線状に塗布し、さらにA4サイズに断裁
して実施例1〜5及び比較例1〜3のシールドコ
ールド紙を得た。また市販の連続伝票紙をA4サ
イズに断裁して比較例4のプリント用紙を得た。 これら9種類のプリント用紙についてゼログラ
フイー方式のレーザープリンターであるFX9700
機で走行テストを実施し、接着剤への感光体付着
によるコピー黒点の発生状況、ミスフイード、重
送、紙詰り、排紙トレイ集積性不良等の走行性を
評価した。またシーリングマシンにより120Kg/
cm2の加圧で接着剤同志を接着させ、剥離テストに
よりその強度を評価した。 これらの結果を表1に示す。 (1) コピー黒点発生時点の走行枚数 走行毎に感光体等を清掃し、コールドシール紙
を走行5000枚走行毎に20枚サンプリングする。そ
のサンプル紙一枚毎に0.2mm径以上のプリント黒
点の数を測定する。黒点はゴールドシール紙走行
枚数を増すにつれて増加して行く。0.2mm径以上
の黒点数が30枚以下のサンプル紙が20枚中18枚以
下になつた最初の走行枚数を黒点発生時点とす
る。 (2) 走行性 〇:ほとんどトトラブルがなく実用可能。 ×:重送ミスフイード、ジアム、排紙トレイ集
[Industrial Field of Application] The present invention relates to printing paper for printing with a xerographic printer or the like, and more specifically, to printing paper in which a self-adhesive adhesive is applied to a predetermined portion of the surface of the base paper. [Prior Art] A xerographic printer is a printer or a copying machine that forms an image on print paper using an electrophotographic method. In addition, printing paper has an adhesive layer on a predetermined part of the paper surface.
After forming an image, it is folded or multiple sheets are stacked and the adhesive layer parts are bonded to each other at room temperature using only pressure without using an activator, and are used to create envelopes, postcards, booklets, etc. Ru. In recent years, with the mechanization of office processing, there has been an increasing demand for the use of printing paper pre-coated with an adhesive having the above-mentioned performance in xerographic printers or copying machines. However, when using conventional continuous slip paper with a low-tack pressure-sensitive adhesive layer into sheets by simply cutting it into sheets in a xerographic printer, misfeeds, double feeds, paper jams, etc. may occur. Poor feeding and thermal curling after image formation causes poor paper stacking on the output tray. Also, especially for printers using pressure roll transfer method.
When 5,000 to 10,000 sheets are printed, the adhesive adheres to the photoreceptor, and the toner adheres to the photoreceptor, which causes many black spots to appear on the image forming surface of the paper, making it unusable. Even if this method is used, adhesive and toner adhering to the photoreceptor must be wiped with a solvent or the like to clean it, which is completely impractical, especially when processing a large number of sheets. In addition, even in xerographic printers other than those using the pressure roll transfer method, the adhesive may contaminate the rubber rolls and belts of the paper feeding device, the cleaning device, the fixing device, etc., causing trouble. [Problems to be Solved by the Invention] The present invention solves the above-mentioned problems with printing paper, and provides printing paper that has excellent running properties and stacking properties, and does not cause troubles due to adhesives adhering to photoreceptors, etc. The purpose is to [Means and effects for solving the problem] The present inventor determined that the adhesion of the adhesive to the photoreceptor is due to the basically high tackiness of the pressure-sensitive adhesive, and has devised various improvement methods. It was investigated. As a result, by using a self-adhesive adhesive whose main ingredient is natural rubber, synthetic rubber, or other low-crystalline polymers, it is possible to prevent the adhesive from adhering to the photoreceptor, greatly reducing print black spots. The present invention was completed based on the discovery that the adhesiveness after printing could be maintained within a practical range. That is, the present invention provides a print characterized in that a self-adhesive adhesive made of a low-crystalline polymer with or without a tackifier and a lubricant is applied to a predetermined portion of a base paper surface. It is paper. The self-adhesive adhesive used in the present invention adheres to synthetic rubbers such as natural rubber, isoprene rubber, styrene-butadiene rubber, and polyisobutylene, and low-crystalline polymers such as acrylic resin, silicone resin, epoxy resin, and styrene resin. waxes such as paraffin wax, microcrystalline wax, polyethylene wax, etc. as a lubricant to reduce the
It contains higher fatty acids such as stearic acid and lauric acid, and fatty acids such as stearic acid amide and palmitic acid amide. There are roughly two types of formulations for this self-adhesive adhesive. One is rosin, similar to conventional rubber-based and acrylic pressure-sensitive adhesives.
After imparting a certain degree of tackiness through copolymerization or polymer blending of tackifier resins such as polyterpene resins and petroleum resins, and soft and highly tackified components with a low glass transition point Tg, a relatively large proportion of The above-mentioned lubricant is added. The other type does not contain a tackifying component like pressure-sensitive adhesives, but instead contains a relatively small proportion of the above-mentioned lubricant in natural rubber, synthetic rubber, or low-crystalline polymer with low tackiness. be.
As mentioned above, it is desired that this adhesive has the property that only the adhesives will adhere to each other when pressure is applied to bring them into close contact, and that it will not easily adhere to areas where there is no adhesive. In this respect, natural rubber and isoprene rubber are most preferred because they have high self-adhesion and low stickiness. These formulations are used for adhesion of adhesive to photoreceptor, printer when fixing images,
It is appropriately adjusted depending on usage conditions, such as whether or not the adhesive strength is reduced by the silicone oil of the release agent supplied to the fixing roll of the copying machine, and the adhesive strength required from the usage method after adhesion. Furthermore, the paint for applying these adhesives to the base paper is selected from water-based and organic solvent-based depending on the manufacturing conditions. When coating the base paper, coating devices such as a bar coater, roll coater, air knife coater, etc., and printing devices such as flexo, gravure, and silk screen can be used. The raw material for the base paper used in this invention is 80% of pulp.
It is desirable that at least % by weight is bleached hardwood kraft pulp. If the bleached hardwood kraft pulp is less than 80% by weight, it tends to form an unsuitable curl shape when heated in a printer or copier. Further, the pulp freeness (CSF) of these materials is preferably 410c.c. or higher. For general high-quality paper and continuous slip paper, the pulp beating degree is often set to 400 c.c. or less in order to obtain strength, but this is not desirable because the elasticity of the paper due to humidity increases and curling increases. Paper making is often carried out in an acidic system with a pH of less than 7, but the base paper used in the present invention is
Paper can be made even in a neutral system with a pH of 7 or higher. Further, it is desirable that the amount of starch added internally and by size press to improve strength is 2 g/m 2 or less. Starch is more hygroscopic than pulp, and if it is added in an amount of 2 g/m 2 or more, as in continuous slip paper, curling properties will deteriorate. In addition, in order to stabilize the shape and size of curls, in the paper making process, we control the fiber orientation in the wire part and dehydration conditions in the press part, the difference in surface temperature between the upper and lower dry cylinders in the dry part, and the number of nips in the calender. Alternatively, subtle controls such as nip pressure control are implemented. In addition, physical curling may be corrected using a decurler during the winding and cutting process. Moisture control is also carried out in the manufacturing process to stabilize curling properties, and the moisture content of the product is appropriately adjusted, and furthermore, moisture-proof packaging is used to maintain it. Furthermore, in order to maintain appropriate copy image density and prevent staining of the background (white paper area), conductive agents such as sodium chloride, potassium chloride, styrene-maleic acid copolymer, and quaternary ammonium salts are applied to the size press of the paper machine. The surface electrical resistance of the transfer paper (according to JISC-2111) is 10 9
10 10 Ω (humidity (RH) 65%, temperature 20°C). In addition, in order to improve the sharpness of the copy image area, the surface unevenness is reduced and the smoothness of the transfer paper (according to JISP-8119) is set to 20 seconds or more. Further, the printing paper of the present invention may be perforated, perforated, and printed depending on its use. [Example] Next, the printing paper of the present invention will be described with reference to Examples and Comparative Examples. Examples 1 to 5, Comparative Examples 1 to 4 90 parts by weight of L-BKP (bleached hardwood kraft pulp) and 10 parts by weight of N-BKP (bleached softwood kraft pulp) were beaten appropriately, and internal chemicals (talc, rosin size, using a fourdrinier paper machine using aluminum sulfate clay)
The paper was made at a speed of 430 to 450 m/min. In addition, 2 g/m 2 of starch was applied along with a conductive agent (sodium chloride) using a size press of a paper machine. Using this base paper, the adhesive shown in Table 1 was applied in a linear manner using a flexographic printing machine, and the paper was cut into A4 size sheets to form shields for Examples 1 to 5 and Comparative Examples 1 to 3. Got cold paper. Further, commercially available continuous slip paper was cut into A4 size to obtain printing paper of Comparative Example 4. The FX9700 is a laser printer using xerography for these nine types of printing paper.
A running test was conducted using the machine to evaluate the running performance, including the occurrence of copy black spots due to the adhesion of the photoreceptor to the adhesive, misfeeds, double feeds, paper jams, and poor stacking on the paper output tray. Also, 120Kg/by sealing machine
The adhesives were bonded together under a pressure of cm 2 and their strength was evaluated by a peel test. These results are shown in Table 1. (1) Number of copies run at the time of black spot occurrence Clean the photoreceptor etc. after every run, and sample 20 sheets of cold seal paper every 5000 copies run. For each sample paper, measure the number of printed black spots with a diameter of 0.2 mm or more. The number of black spots increases as the number of sheets of gold sticker paper increases. The first number of sheets of sample paper with a diameter of 0.2 mm or more with 30 or less black spots at 18 out of 20 sheets is the point at which black spots occur. (2) Drivability 〇: Practical with almost no trouble. ×: Double feed error, jam, paper output tray collection

〔発明の効果〕〔Effect of the invention〕

本発明は、結晶性の低い高分子に粘着付与剤を
添加しまたは添加せず滑剤を含有させてなる自着
性接着剤を原子の紙面の所定部分に塗布してなる
ことを特徴とするプリント用紙を提供したもので
あり、接着剤の感光体付着によるコピーへの黒点
の発生が生ぜず、また走行性にすぐれている。
The present invention is a print characterized in that a self-adhesive adhesive made of a low-crystalline polymer containing a lubricant with or without the addition of a tackifier is applied to a predetermined portion of the paper surface of the atom. It provides paper, does not cause black spots on copies due to adhesive adhering to the photoreceptor, and has excellent running properties.

Claims (1)

【特許請求の範囲】[Claims] 1 結晶性の低い高分子に粘着性付与剤を添加し
または添加せず滑剤を含有させてなる自着性接着
剤を、原紙紙面の所定部分に塗布したことを特徴
とするプリント用紙。
1. A printing paper characterized in that a self-adhesive adhesive made of a low-crystalline polymer containing a lubricant with or without the addition of a tackifier is applied to a predetermined portion of the paper surface of the base paper.
JP15519384A 1984-07-27 1984-07-27 Printing paper Granted JPS6134553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15519384A JPS6134553A (en) 1984-07-27 1984-07-27 Printing paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15519384A JPS6134553A (en) 1984-07-27 1984-07-27 Printing paper

Publications (2)

Publication Number Publication Date
JPS6134553A JPS6134553A (en) 1986-02-18
JPH0481188B2 true JPH0481188B2 (en) 1992-12-22

Family

ID=15600520

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15519384A Granted JPS6134553A (en) 1984-07-27 1984-07-27 Printing paper

Country Status (1)

Country Link
JP (1) JPS6134553A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY125712A (en) 1997-07-31 2006-08-30 Hercules Inc Composition and method for improved ink jet printing performance
JP2003105694A (en) * 2001-09-27 2003-04-09 Toppan Forms Co Ltd Electrostatically printable sheet for carrying hidden information

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5418689B2 (en) * 1974-01-11 1979-07-10
JPS57192475A (en) * 1981-05-22 1982-11-26 Toppan Moore Co Ltd Pressure-sensitive adhesive
JPS5831175U (en) * 1981-08-24 1983-03-01 大日本印刷株式会社 Continuous form for envelopes

Also Published As

Publication number Publication date
JPS6134553A (en) 1986-02-18

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