JPS622270A - Neutral paper - Google Patents
Neutral paperInfo
- Publication number
- JPS622270A JPS622270A JP14024985A JP14024985A JPS622270A JP S622270 A JPS622270 A JP S622270A JP 14024985 A JP14024985 A JP 14024985A JP 14024985 A JP14024985 A JP 14024985A JP S622270 A JPS622270 A JP S622270A
- Authority
- JP
- Japan
- Prior art keywords
- calcium carbonate
- paper
- particles
- photoreceptor
- neutral paper
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G7/00—Selection of materials for use in image-receiving members, i.e. for reversal by physical contact; Manufacture thereof
- G03G7/006—Substrates for image-receiving members; Image-receiving members comprising only one layer
- G03G7/0066—Inorganic components thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Paper (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、特に電子写真用転写紙、詳しく言えば主とし
て電子写真方式の複写機やプリンターに適した中性紙に
関するもの！ある。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electrophotographic transfer paper, and more particularly, to an neutral paper suitable for electrophotographic copying machines and printers! be.
近年、製紙業界１は、インディ了紙、ライスペーパー等
の薄葉紙や金属合紙、防錆紙、電気絶縁紙、写真印画紙
等の特殊紙の分野で実施されてきた中性抄紙技術を印刷
および筆記用の上質紙の製造に応用する動きが顕著にな
っている。この中性抄紙はｐＨ７，０以上の水媒体を用
いて抄紙するもの１、サイズ剤として中性サイズを使用
し、填料全配合する場合には主に炭酸カルシウムを使用
するもの１ある。In recent years, the paper industry 1 has been expanding the use of neutral papermaking technology, which has been implemented in the fields of thin paper such as indie paper and rice paper, metal laminated paper, anti-rust paper, electrical insulation paper, and special paper such as photographic paper, in printing and printing. There is a growing movement to apply it to the production of high-quality paper for writing. There are two types of neutral papermaking: one that uses an aqueous medium with a pH of 7.0 or more, and one that uses a neutral size as a sizing agent and mainly uses calcium carbonate when all fillers are added.
上質紙の中性紙化は資源豊富１安価な炭酸カルシウムを
填料として使用して製造コストを低減することが大きな
ねらいであり、その他用紙製造上の省エネルギー、省資
源、生産性向上、設備の汚損改善、廃水の浄化等の利得
上もねらいとするものである。例えば、特願昭５８−０
６４５９８号。The main aim of converting high-quality paper to neutral paper is to reduce manufacturing costs by using inexpensive calcium carbonate, which is rich in resources, as a filler, and also to save energy and resources in paper manufacturing, improve productivity, and prevent equipment pollution. The aim is also to improve benefits such as improvement and purification of wastewater. For example, patent application 1986-0
No. 64598.
同５８−０５６６２５号に示されているような中性上質
紙は電子写真用複写機に使用すると紙送り性等の適性が
ないｉかりでなく、感光体を摩耗してコピー質を低下さ
せたり、感光体自身の寿命を縮める重大な欠点があるこ
とが判明した。この感光体摩耗の現象はクリーニングブ
レード方式の複写機で顕著に発生する。また、この現象
から考えると紙送り装置に使用されているゴムロールや
ゴムベルト、クリーニングブレードニ定着ロール等につ
いても当然摩耗が懸念されろ。欧米受は一部の電子写真
用転写紙が中性抄紙されているが、そのような転写紙に
ついても前記と同様の現象が認められる。現在はとんど
の上質紙、電子写真用転写紙は特開昭５４−２２８３１
号や特開昭５４−１８７４０号等に開示されているよう
に酸性紙マあるが、これらの用紙〒は感光体の摩耗は認
められず、前記の欠点は中性紙特有の問題と判断される
。When used in an electrophotographic copying machine, neutral high-quality paper as shown in No. 58-056625 not only has poor paper feeding properties, but also wears out the photoreceptor and degrades copy quality. However, it has been found that there is a serious drawback that shortens the life of the photoreceptor itself. This phenomenon of photoreceptor wear occurs significantly in cleaning blade type copying machines. Furthermore, considering this phenomenon, there is naturally a concern that the rubber rolls, rubber belts, cleaning blades, fixing rolls, etc. used in the paper feeding device may be worn out. Some electrophotographic transfer papers in Europe and the United States are made of neutral paper, and the same phenomenon as described above is observed with such transfer papers. Currently, most high-quality paper and transfer paper for electrophotography are published under JP-A-54-22831.
Although there are acidic papers as disclosed in No. 18740 and Japanese Patent Application Laid-Open No. 18740/1983, no wear of the photoreceptor was observed with these papers, and the above-mentioned drawbacks were judged to be a problem unique to acid-free paper. Ru.
本発明は前記した欠点を解消し、たとえ電子写真用とし
て使用した場合であっても感光体の摩耗が少ないという
中性紙を提供するものである。The present invention solves the above-mentioned drawbacks and provides an neutral paper that causes less wear on the photoreceptor even when used for electrophotography.
〔問題点を解決するための手段及び作用〕本発明者等は
感光体に付着した紙粉中に存在する填料の炭酸カルシウ
ムがクリーニングブレード等によって感光体表面に圧接
かつ摩擦されることにより感光体の摩耗が発生すること
をつきとめた。[Means and effects for solving the problem] The present inventors have discovered that calcium carbonate, which is a filler present in paper powder adhering to a photoreceptor, is pressed and rubbed against the surface of the photoreceptor by a cleaning blade, etc. It was found that wear occurred.
また、炭酸カルシウムが酸性の上質紙や電子写真用転写
紙に使用されている填料のメルクやクレーより硬いため
に感光体を摩耗させ易いこと、従って炭酸カルシウム金
子め表面処理することによって、かたい炭酸カルシウム
粒子が直接感光体全摩擦しないようにすれば感光体摩耗
現象を改善できることを見出し本発明を完成した。In addition, since calcium carbonate is harder than the Merck and clay fillers used in acidic high-quality paper and electrophotographic transfer paper, it easily wears out the photoreceptor. The present invention was completed based on the discovery that the phenomenon of abrasion of the photoreceptor could be improved by preventing the calcium carbonate particles from directly rubbing against the photoreceptor.
ＹＰｌ”ｉ戴
すなわち、本発明の−′ は表面処理によっ
て１粒子表面を被覆するが、または複数の粒子を結合さ
せた炭酸カルシラムラ、・ソルプと混合し抄紙すること
を特徴とする。本発明の中性紙フは炭酸カルシウムとし
ては石灰石、白亜等を粉砕した重質炭酸カルシウム、化
学的に製造した沈降性炭酸カルシウムなどが使用〒きる
。また炭酸カルシウムに摩耗性の小さいメルク、カオリ
ン等を配合することも可能１ある。In other words, YPl"i" of the present invention is characterized in that the surface of one particle is coated by surface treatment, or the paper is made by mixing with Calciramula carbonate, which is a combination of a plurality of particles. As the calcium carbonate for neutral paper, heavy calcium carbonate obtained by crushing limestone, chalk, etc., and chemically produced precipitated calcium carbonate can be used.Additionally, calcium carbonate is blended with less abrasive Merck, kaolin, etc. It is also possible to do so.
このように炭酸カルシウムの表面に被膜層を形成するこ
とによって炭酸カルシウムの形状や硬さからくる感光体
の摩耗も防止できる。表面を被覆するか、または粒子を
結合させるための炭酸カルシウムの表面処理方法として
は（１）複分解反応法。By forming a coating layer on the surface of calcium carbonate in this manner, wear of the photoreceptor due to the shape and hardness of calcium carbonate can also be prevented. Surface treatment methods for calcium carbonate for coating the surface or bonding particles include (1) double decomposition reaction method.
山）共フロキュレーション処理法−（ｉｉｉ）易分散構
造をつくる方法など種々の方法がある。There are various methods such as (i) co-flocculation treatment method and (iii) method of creating an easily dispersible structure.
複分解反応は、例えば炭酸カルシウム粒子表面′ｔ％１
ｒ３５ｉｔｕ的にナトリウム石けんまたは樹脂散塩を酸
、カルシウム、ノ々リウム塩、アミン塩と組み合わせて
沈澱させる方法である。共７０キュレーション処理法は
例えば炭酸カルシウムペーストに乳化または分散された
油、ワックス、樹脂、ポリマー、さらにエマルシミ／ポ
リマー、分離および乾燥の前に７０キユンートされろ混
合分散液などを各々加えて処理する方法である。また、
易分散構造をつくろ方法は、炭酸カルシウムのまわりに
処理剤を沈着させたあと、処理剤を軟化し再び硬化させ
、口過し軟化点以下で乾燥し、処理剤１コーテイングさ
れた原料をオープン構造とするものである。すなわち処
理剤が炭酸カルシウム粒子間の接着剤的働きを示し、ち
ょうど珠玉のらながったような環構造音生ずる。The double decomposition reaction occurs, for example, on the surface of calcium carbonate particles 't%1
This is a method in which sodium soap or resin dispersion salt is precipitated in combination with an acid, calcium salt, norium salt, or amine salt. The co-70 curation treatment method involves adding, for example, oils, waxes, resins, polymers emulsified or dispersed in calcium carbonate paste, emulsion stains/polymers, and mixed dispersions that are filtered and filtered before separation and drying. It's a method. Also,
The method for creating an easily dispersible structure is to deposit the processing agent around calcium carbonate, soften the processing agent, harden it again, pass through the mouth, dry below the softening point, and transform the raw material coated with processing agent 1 into an open structure. That is. In other words, the processing agent acts like an adhesive between the calcium carbonate particles, producing a ring-like sound that resembles a string of beads.
具体的に最も簡単な処理方法の例を示すと、破りヒニル
アルコール、スチレン−マレイン酸コボ＋）−ｑ−２ｔ
ん粉、でん粉誘導体、インブチレン−無水マレイン酸コ
ポリマー、カルゲキシメチルセルロースナトのセルロー
ス誘導体、 ４１ＪアクリルアマイＰなどの水溶液ヲ、
炭酸カルシウムに対し、上記物質の固形分として３重ｆ
ｌチ〜３０重量％（更に好ましくは１０〜２０重量Ｓ）
混合し、数分〜１時時間区アトライター等によりかくは
ん混合することによって表面が被覆された炭酸カルシウ
ムが得られる。勿論上記は例示であって炭酸カルシウム
の表面処理により粒子を結合もしくは粒子表面に被覆を
形成させるすべての方法が含まれる。To give a concrete example of the simplest processing method, broken vinyl alcohol, styrene-maleic acid cobo+)-q-2t
Aqueous solutions such as starch, starch derivatives, inbutylene-maleic anhydride copolymers, cellulose derivatives of calgeximethyl cellulose, 41J acrylamine P, etc.
The solid content of the above substance is 3 times F compared to calcium carbonate.
1 to 30% by weight (more preferably 10 to 20% by weight)
By mixing and stirring using an attritor or the like for several minutes to one hour, calcium carbonate whose surface is coated can be obtained. Of course, the above is just an example, and includes all methods of binding particles or forming a coating on the surface of particles by surface treatment of calcium carbonate.
サイズ剤としてはアルキルケテンダイマー系、無水アル
ケニルコハク酸系サイズ等を使用するが。As the sizing agent, an alkyl ketene dimer type, alkenyl succinic anhydride type, etc. are used.
これらに限定するものではない。It is not limited to these.
また、コピー適性、走行性、カール性等の電子写真複写
機適性を付与するために原料の配合、調整、製造条件の
コントロールが行われる（特公昭４４−３６７３号、特
公昭４６−２４１９９号。In addition, in order to impart suitability for electrophotographic copying machines such as copyability, runnability, and curling properties, the blending and adjustment of raw materials and manufacturing conditions are controlled (Japanese Patent Publications No. 44-3673, Japanese Patent Publication No. 46-24199).
特公昭５５−４７３８５号、特開昭５５−１４２７９９
号参照）。すなわち、適当なコピー画像濃度を維持し、
・々ツクグランド（白地部分）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
ぽリマー、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（Ｊ
ＩＳ Ｃ−２１１１による）を１０９〜１０１０Ω（湿
度（Ｒ，Ｈ，） ６５％、温度２０℃）にする。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秒以上にする。また転写紙の部分的吸湿による膨
潤やカールが発生すると転写時に複写機の感光体と転写
紙との密接度が低下し、コピー画像濃度の低下やコピー
の部外的な抜けが発生するのでこれを防止するために紙
の水分を４．０〜５．５チにして保管時に吸脱湿が発生
しないように防湿包装紙ｆ包装すること等によって一層
好ましい電子写真複写機適正が得られる。Japanese Patent Publication No. 55-47385, Japanese Patent Publication No. 55-142799
(see issue). That is, maintaining appropriate copy image density,
・In order to prevent stains on the ground (white background), conductive agents such as sodium chloride, potassium chloride, styrene-maleic acid copolymer, and quaternary ammonium salts are applied to the surface of the transfer paper using the size press of the paper machine. surface electrical resistance (J
(according to IS C-2111) to 109-1010 Ω (humidity (R, H,) 65%, temperature 20°C). In addition, in order to improve the sharpness of the copy image area, the surface unevenness is reduced to improve the smoothness of the transfer paper (according to JISP-8119).
for at least 20 seconds. In addition, if the transfer paper partially absorbs moisture and swells or curls, the closeness between the copying machine's photoreceptor and the transfer paper will decrease during transfer, resulting in a decrease in copy image density and external omissions in the copy. In order to prevent this, more preferable suitability for electrophotographic copying machines can be obtained by setting the moisture content of the paper to 4.0 to 5.5 inches and wrapping the paper in moisture-proof wrapping paper to prevent moisture absorption and desorption during storage.
次に実施例及び比較例により本発明の中性紙を電子写真
用として適用した例で説明する。Next, examples and comparative examples in which the neutral paper of the present invention is applied to electrophotography will be explained.
実施例１〜５及び比較例１〜６
表１に示したような填料配合、ノＲルゾ配合、内添サイ
ズ剤、表面サイズ剤によって７糧の転写用紙（実施例１
〜５．比較例１〜２）を調整した。Examples 1 to 5 and Comparative Examples 1 to 6 Seven types of transfer paper (Example 1
~5. Comparative Examples 1 and 2) were prepared.
また同時に市販の中性上質紙（比較例３）についても６
坪量、クリーニングブレード方式の複写機についての感
光体摩耗度、黒すじや白抜は等の発生によるコピー質へ
の影響を評価した。感光体摩耗についてはクリーニング
ブレード方式の複写機を使用してトナー現像を行わずに
用紙全５．０００枚走行させ、クリーニングブｖ ｈ
ｓ上で補集した紙粉のＸＰＳ （Ｘ−ｒａｙ Ｐｈｏｔ
ｏｅｌｅｃｔｒｏｎ ５ｐ６ｃｔｒｏｓｃｏｐｙ ）分
析１感光体成分の有無を判定した。At the same time, 6
We evaluated the basis weight, the degree of wear of the photoreceptor for cleaning blade type copiers, and the effects of black streaks, white spots, etc. on copy quality. Regarding photoconductor wear, use a cleaning blade type copying machine and run a total of 5,000 sheets of paper without toner development.
XPS of paper powder collected on s (X-ray Photo
oelectron 5p6 ctroscopy) Analysis 1 The presence or absence of photoreceptor components was determined.
コピー質は感光体摩耗テストと同じ条件で用紙を１万枚
走行した後にトナー現像してコピーを取り、黒丁じ、白
抜けの有無〒判定した。これらの結果全表１に示す。Copy quality was determined by running 10,000 sheets of paper under the same conditions as in the photoreceptor wear test, developing the toner, making copies, and determining whether there were black pages or white spots. The results are shown in Table 1.
本発明は予め表面処理をして１粒子表面を被覆するか、
または複数の粒子を結合させた炭酸カルシウムを填料と
して配合した中性紙を提供したものであり、特に本発明
の中性紙を電子写真複写機に用いた場合に従来の中性紙
の場合にみられた感光体の摩耗現象が極めて少なく、大
量のコピーをとった後でも高品位のコピーを得ることが
ｔきる。In the present invention, the surface of each particle is coated by pre-surface treatment, or
Or, it provides an acid-free paper containing calcium carbonate, which is a combination of a plurality of particles, as a filler.In particular, when the acid-free paper of the present invention is used in an electrophotographic copying machine, it can be used in an electrophotographic copying machine. The phenomenon of wear of the photoreceptor observed is extremely small, and high-quality copies can be obtained even after making a large number of copies.
Claims (1)
の粒子を結合させた炭酸カルシウムを含有することを特
徴とする中性紙。Neutral paper characterized by containing calcium carbonate which coats the particle surface or binds a plurality of particles by surface treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14024985A JPS622270A (en) | 1985-06-28 | 1985-06-28 | Neutral paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14024985A JPS622270A (en) | 1985-06-28 | 1985-06-28 | Neutral paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS622270A true JPS622270A (en) | 1987-01-08 |
Family
ID=15264380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14024985A Pending JPS622270A (en) | 1985-06-28 | 1985-06-28 | Neutral paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS622270A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0337490A2 (en) * | 1988-04-15 | 1989-10-18 | Fuji Photo Film Co., Ltd. | Silver halide light-sensitive photographic material |
| US6150066A (en) * | 1992-09-07 | 2000-11-21 | Ricoh Company, Ltd. | Method and apparatus for repetitively using a toner image carrier sheet |
| WO2000076922A3 (en) * | 1999-06-16 | 2001-11-01 | Hercules Inc | Methods of preventing scaling involving inorganic compositions, and compositions therefor |
| EP1473600A1 (en) * | 2003-04-30 | 2004-11-03 | Oji Paper Co., Ltd. | Electrophotographic recording sheet |
-
1985
- 1985-06-28 JP JP14024985A patent/JPS622270A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0337490A2 (en) * | 1988-04-15 | 1989-10-18 | Fuji Photo Film Co., Ltd. | Silver halide light-sensitive photographic material |
| US6150066A (en) * | 1992-09-07 | 2000-11-21 | Ricoh Company, Ltd. | Method and apparatus for repetitively using a toner image carrier sheet |
| WO2000076922A3 (en) * | 1999-06-16 | 2001-11-01 | Hercules Inc | Methods of preventing scaling involving inorganic compositions, and compositions therefor |
| EP1473600A1 (en) * | 2003-04-30 | 2004-11-03 | Oji Paper Co., Ltd. | Electrophotographic recording sheet |
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