JPH0465596A - Transferring paper for electrophotography - Google Patents
Transferring paper for electrophotographyInfo
- Publication number
- JPH0465596A JPH0465596A JP17529290A JP17529290A JPH0465596A JP H0465596 A JPH0465596 A JP H0465596A JP 17529290 A JP17529290 A JP 17529290A JP 17529290 A JP17529290 A JP 17529290A JP H0465596 A JPH0465596 A JP H0465596A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- pulp
- wrinkles
- transfer paper
- copying
- 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.)
- Granted
Links
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 32
- 239000010893 paper waste Substances 0.000 claims abstract description 30
- 238000012546 transfer Methods 0.000 claims description 49
- 239000000126 substance Substances 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000000123 paper Substances 0.000 description 133
- 239000013256 coordination polymer Substances 0.000 description 32
- 230000037303 wrinkles Effects 0.000 description 30
- 239000003795 chemical substances by application Substances 0.000 description 25
- 238000004513 sizing Methods 0.000 description 23
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 16
- 239000000945 filler Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- 238000002156 mixing Methods 0.000 description 8
- 239000011780 sodium chloride Substances 0.000 description 8
- 229920002472 Starch Polymers 0.000 description 7
- -1 etc. Substances 0.000 description 7
- 239000008107 starch Substances 0.000 description 7
- 235000019698 starch Nutrition 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 239000011121 hardwood Substances 0.000 description 4
- 239000002655 kraft paper Substances 0.000 description 4
- 239000011122 softwood Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000002761 deinking Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 235000010724 Wisteria floribunda Nutrition 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052903 pyrophyllite Inorganic materials 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 125000005624 silicic acid group Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Paper (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、電子写真複写機などに用いられる電子写真用
転写紙に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an electrophotographic transfer paper used in an electrophotographic copying machine or the like.
古紙または新聞古紙の脱墨古紙パルプを含有し、間接電
子写真適性を付与した再生紙は公知である。Recycled paper containing deinked waste paper pulp of waste paper or newspaper and endowed with suitability for indirect electrophotography is known.
間接電子写真技術が、従来のアナログ複写機だけでなく
、編纂可能なデジタル複写機、プリンタ、ファクシミリ
、またはそれらの複合機に適用されるに伴い、これら装
置で両面コピーや多量コピーを行う頻度が急激に増加し
ている。As indirect electrophotography technology is applied not only to conventional analog copiers, but also to compile-capable digital copiers, printers, facsimile machines, and multifunction machines, the frequency of double-sided copying and large-volume copying with these devices has increased. It is rapidly increasing.
上記の用途に、従来の再生紙を使用すると、特に高湿環
境下でのコピー作業で、コピーのしわや紙詰まり等のト
ラブルが発生する問題が頻発し、実用上大きな支障があ
ることが明らかになってきた。It is clear that when conventional recycled paper is used for the above applications, problems such as wrinkles in the copy and paper jams frequently occur, especially when copying is done in a high humidity environment, which poses a major problem in practical use. It has become.
本発明の目的は、従来の再生紙では考えられなかった上
記の苛酷な用途にも使用できる古紙再生紙を提供するこ
とにある。特に波打ちが小さく、カールが安定化し、し
わや紙詰まり等のトラブルが改善された間接電子写真式
ハードコピー装置適性を有する古紙再生紙を提供するこ
とにある。An object of the present invention is to provide recycled paper that can be used in the above-mentioned severe applications that were unimaginable for conventional recycled paper. Particularly, the object of the present invention is to provide recycled paper that has little waviness, stable curling, and improved troubles such as wrinkles and paper jams, and is suitable for indirect electrophotographic hard copy devices.
本発明者等は、上記しわの発生について観察したところ
、高湿環境でコピーする際に、開封した用紙や、−度コ
ピーした用紙を積み重ねたまま放置すると、上部の何枚
かを除き、熱ロール方式の画像定着部で、用紙後端にし
わが発生することが確認された。更に定着部でのしわ発
生状況を検討したところ、しわが発生する用紙は、周辺
部が中央部より水分含有量が２〜３％高く、そのため周
辺部の寸法が中央部より伸びているため、周辺部に波打
ちを生じていること、この波打ちが大きいと、しわの発
生が増加することが確認された。これは、熱ロールで用
紙の中央部が先にロールニップ部から脱出し、両端部が
残るため、紙が中央部でふくらみ、折れてニップ部に噛
み込まれるためである。また、定着部で生起されるコピ
ー後カールが大きいと、紙詰まりが発生することが確認
された。The inventors of the present invention have observed the occurrence of wrinkles and have found that when copying in a high humidity environment, if unsealed sheets or sheets of paper that have been copied several times are left in a stack, all but the top few sheets will be exposed to heat. It has been confirmed that wrinkles occur at the trailing edge of paper in the roll-type image fixing unit. Furthermore, when we investigated the occurrence of wrinkles in the fixing section, we found that the moisture content of the paper in which wrinkles occur is 2 to 3% higher in the periphery than in the center, and as a result, the dimensions of the periphery are longer than in the center. It was confirmed that the periphery had undulations, and that the larger the undulations, the more wrinkles would occur. This is because the central part of the paper escapes from the roll nip section first by the heat roll, and both ends remain, causing the paper to bulge in the central part, fold, and get caught in the nip part. Furthermore, it has been confirmed that paper jams occur when the curl after copying that occurs in the fixing section is large.
開封直後の製品の水分含有量（以下、製品水分という）
が高いと、高湿環境での波打ちは小さくなるがコピー後
カールが大きくなり、また製品水分が低いと、コピー後
カールは小さくなるが、波打ちが大きくなり、したがっ
て適正な製品水分を有することが重要であることが確認
された。Moisture content of the product immediately after opening (hereinafter referred to as product moisture)
If the product moisture is high, the curl will be small but the curl after copying will be large in a high humidity environment, and if the product moisture is low, the curl will be small after copying but the curl will be large, thus making it difficult to have proper product moisture. confirmed to be important.
更に、用紙の高湿環境での波打ちは、その環境での平衡
水分が大きく影響する。機械パルプ比重が高い従来の再
生紙は、吸湿しやすく、平衡水分が高いので、開封当初
は適正な製品水分を有する用紙でも、次第に周辺部と中
央部の水分含有量の差が大きくなり、大きな波打ちが生
じることにより、しわが多く発生する。平衡水分の低い
バージンパルプ及び古紙パルプを問わず、化学パルプ（
ＣＰ）の多い方が、適正な製品水分ても、用紙の周辺部
と中央部の水分差は小さいので、波打ちが小さくなり、
しわの発生が少ないことか確認された。そして、全パル
プ中のバージンパルプ及び古紙パルプのうちの０２分の
合計比率が７０％以上になると、しわの発生が急激に減
少することが実験で確認された。Furthermore, the waviness of paper in a high-humidity environment is greatly influenced by the equilibrium moisture content in that environment. Conventional recycled paper with a high mechanical pulp specific gravity easily absorbs moisture and has a high equilibrium moisture content, so even if the paper initially has an appropriate product moisture content when opened, the difference in moisture content between the peripheral and central areas gradually increases, resulting in a large Due to the waving, many wrinkles occur. Chemical pulp (
CP), even if the product moisture is appropriate, the difference in moisture between the periphery and center of the paper is small, resulting in less waviness.
It was confirmed that there were fewer wrinkles. Experiments have confirmed that when the total ratio of virgin pulp and waste paper pulp in the total pulp reaches 70% or more, the occurrence of wrinkles decreases rapidly.
また、従来の再生紙は、全パルプ中の機械パルプ比率が
高く吸湿しやすく、平衡水分が高いので、製品水分も高
いのが普通であり、カールが不安定で、紙詰まりが発生
するのである。これに対して、本発明の電子写真用転写
紙であるＣＰ比率の高い再生紙は、平衡水分が低いため
、適正な製品水分を安定して確保できるので、カール′
が安定化し、紙詰まりを減少できるのである。In addition, conventional recycled paper has a high proportion of mechanical pulp in the total pulp, which easily absorbs moisture, and has a high equilibrium moisture content, so the product moisture is usually high, causing unstable curling and paper jams. . On the other hand, recycled paper with a high CP ratio, which is the electrophotographic transfer paper of the present invention, has a low equilibrium moisture content, so it is possible to stably secure an appropriate moisture content in the product, which prevents curling.
This stabilizes paper jams and reduces paper jams.
本発明の電子写真用転写紙は、古紙パルプを含有し、全
パルプ中のバージンパルプ及び古紙パルプのうちの化学
パルプ分の合計比率が７０％以上であり、水分含有量３
，５〜６．０％であることを特徴とする。The electrophotographic transfer paper of the present invention contains waste paper pulp, the total ratio of virgin pulp in the whole pulp and chemical pulp of the waste paper pulp is 70% or more, and the water content is 3.
, 5 to 6.0%.
本発明の電子写真用転写紙は、バージンパルプ及び古紙
パルプのうちの０２分の合計が全パルプの７０％以上で
あることが必要である。In the electrophotographic transfer paper of the present invention, the total amount of virgin pulp and waste paper pulp must be 70% or more of the total pulp.
本発明において使用する古紙パルプは、製本、印刷工場
、裁断所等において発生する裁落、損紙、幅落とした古
紙である上白、特白、中白、自損等の未印刷古紙を解離
した古紙パルプと、上質紙、上質コート紙、中質紙、中
質コート紙、更紙等に、平版、凸版、凹版印刷等や、電
子写真方式、感熱方式、熱転写方式、感圧記録方式、イ
ンクジェット記録方式、カーボン紙などにより印字され
た古紙、及び水性、油性インクや、鉛筆などで筆記した
古紙を、離解後脱墨したパルプ（以下、ＤＩＰと略記す
る）等すべて利用できる。また、転写紙中の古紙パルプ
配合率を高め、ＣＰ７０％以上にする場合には、前述し
た古紙のうち、化学パルプを多く含有する古紙を離解ま
たは脱墨処理した古紙パルプの配合をふやせばよい。The waste paper pulp used in the present invention is made by disassociating unprinted waste paper such as blank paper, special white paper, middle white paper, self-damage paper, etc., which are scraps, waste paper, and waste paper with reduced width that occur in bookbinding, printing factories, cutting shops, etc. Used waste paper pulp, high quality paper, high quality coated paper, medium quality paper, medium quality coated paper, recycled paper, etc. can be used for lithography, letterpress, intaglio printing, electrophotographic method, thermal method, thermal transfer method, pressure sensitive recording method, etc. All can be used, such as waste paper printed with inkjet recording method, carbon paper, etc., and waste paper written with water-based or oil-based ink, pencil, etc., and pulp (hereinafter abbreviated as DIP) obtained by disintegrating and deinking paper. In addition, if you want to increase the content of waste paper pulp in the transfer paper and make the CP 70% or more, you can increase the content of waste paper pulp that is obtained by disintegrating or deinking waste paper that contains a large amount of chemical pulp among the waste papers mentioned above. .
バージンのＣＰとしては、広葉樹晒クラフトパルプ（Ｌ
ＢＫＰ）、針葉樹晒クラフトパルプ（ＮＢＫＰ）、広葉
樹未晒クラフトパルプ化ＵＫＰ）、針葉樹未晒クラフト
パルプ（ＮＵＫＰ）、広葉樹晒亜硫酸パルプ（ＬＢＳＰ
）、針葉樹晒亜硫酸パルプ（ＮＢＳＰ）、広葉樹未晒亜
硫酸パルプ（ＬＵＳＰ）、針葉樹未晒亜硫酸パルプ（Ｎ
ＵＳＰ）、ソーダパルプ等の木材及びその他の繊維原料
を化学的に処理して作成されたパルプかあげられる。Virgin CP is hardwood bleached kraft pulp (L
BKP), softwood bleached kraft pulp (NBKP), hardwood unbleached kraft pulp UKP), softwood unbleached kraft pulp (NUKP), hardwood bleached sulfite pulp (LBSP)
), softwood bleached sulfite pulp (NBSP), hardwood unbleached sulfite pulp (LUSP), softwood unbleached sulfite pulp (N
USP), pulp made by chemically processing wood and other fiber raw materials such as soda pulp.
本発明においては、上記ＣＰの外に、木材またはチップ
をそのまま、或いは熱処理後、機械的に処理したメカニ
カルパルプ（ＭＰ） 、木材またはチップに薬液を浸み
込ませた後、機械的にパルプ化したケミグランドパルプ
、ケミメカニカルパルプ、及びチップをやや柔らかくな
るまで蒸解した後、リファイナーでパルプ化したセミケ
ミカルパルプ（ｓｅｐ）等のバージンパルプを含有させ
てもよい。In the present invention, in addition to the above-mentioned CP, mechanical pulp (MP), which is obtained by using wood or chips as they are or after heat treatment and mechanically treating them, and mechanically pulping after impregnating wood or chips with a chemical solution, Virgin pulp such as semi-chemical pulp (SEP) obtained by cooking the chemical ground pulp, chemical mechanical pulp, and chips until they become slightly soft and then pulping them in a refiner may be included.
これらのＣＰ以外のパルプは、上記したように紙の平衡
水分を上昇させるため、配合量を極力減らす必要があり
、３０％以下、好ましくは２０％以下の割合で含有させ
る。Since these pulps other than CP increase the equilibrium water content of the paper as described above, it is necessary to reduce the blending amount as much as possible, and the content thereof is 30% or less, preferably 20% or less.
本発明の電子写真用転写紙に用いることができる填料と
しては、重質炭酸カルシウム、軽質炭酸カルシウム、チ
ョーク等の炭酸カルシウム、カオリン、焼成りレー、パ
イロフィライト、セリサイト、タルク等のケイ酸塩類や
、ホワイトカーボン、珪石粉等のケイ酸類等、無機填料
や、尿素樹脂等の有機填料が使用でき、用紙に対して重
量比で２０％以下、好ましくはｌＯ％以下配合する。特
に望ましくは、電子写真方式における画質維持性の観点
から、炭酸カルシウム１０％以下を配合する。Fillers that can be used in the electrophotographic transfer paper of the present invention include heavy calcium carbonate, light calcium carbonate, calcium carbonate such as chalk, kaolin, silicic acid such as calcined clay, pyrophyllite, sericite, and talc. Inorganic fillers such as salts, silicic acids such as white carbon and silica powder, and organic fillers such as urea resin can be used, and are blended in an amount of 20% or less, preferably 10% or less, based on the weight of the paper. Particularly preferably, 10% or less of calcium carbonate is added from the viewpoint of image quality maintenance in electrophotography.
本発明において使用できる内添サイズ剤としては、ロジ
ン系サイズ剤、合成サイズ剤、石油樹脂系サイズ剤、中
性サイズ剤等のサイズ剤が使用でき、硫酸バンド、カチ
オン化澱粉等、適当なサイズ剤と繊維との定着剤を組み
合わせて使用する。As the internal sizing agent that can be used in the present invention, sizing agents such as rosin-based sizing agents, synthetic sizing agents, petroleum resin-based sizing agents, and neutral sizing agents can be used. A combination of a fixing agent and a fiber fixing agent is used.
この時、保存性の観点から、また、電子写真方式の複写
機、プリンター等における走行性の観点から、中性サイ
ス剤、特に、アルケニル無水コノ＼り酸系サイズ剤が好
ましい。At this time, from the viewpoint of storage stability and runnability in electrophotographic copying machines, printers, etc., neutral sizing agents, particularly alkenyl anhydride-based sizing agents, are preferred.
更にコピー適性、走行性等の電子写真適性を付与するた
めに、原料の調成、製造条件のコントロールが行われる
。即ち、原料パルプは、平衡水分が高くならないように
、適度の叩解処理を行う。Furthermore, in order to impart electrophotographic suitability such as copy suitability and runnability, raw materials are prepared and manufacturing conditions are controlled. That is, the raw material pulp is subjected to appropriate beating treatment so that the equilibrium moisture content does not become high.
また、画像の乱れを防止し、適当なコピー画像濃度を維
持するために、塩化ナトリウム、塩化カリウム、スチレ
ン−マレイン酸共重合体、第４級アンモニウム塩等の導
電化剤を抄紙機のサイズプレスで表面塗布して、転写紙
の表面電気抵抗を１０９〜■０１０Ω（温度２０℃、湿
度６５％ＲＨ） （ＪＩＳ Ｋ６９１１による）にす
るのが好ましい。In addition, in order to prevent image distortion and maintain appropriate copy image density, conductive agents such as sodium chloride, potassium chloride, styrene-maleic acid copolymer, and quaternary ammonium salts are added to the size press of the paper machine. It is preferable to coat the surface of the transfer paper with 109 to 1010 Ω (temperature 20° C., humidity 65% RH) (according to JIS K6911).
また、コピー画像部の鮮鋭度を向上させるために、キャ
レンダー処理などにより、表面の凹凸を少なくして、転
写紙の平滑度（ＪＩＳ Ｐ８１１９）を１０秒以上、特
に、２０秒以上にするのが好ましい。In addition, in order to improve the sharpness of the copied image area, use calendering to reduce surface irregularities and increase the smoothness (JIS P8119) of the transfer paper to 10 seconds or more, especially 20 seconds or more. is preferred.
また、上記したように開封直後の製品水分は、波打ちや
、コピー後カールの発生を抑えるために、水分含有量が
３．５〜６０％の範囲になるように、抄紙機のドライヤ
ー、キャレンダー工程や裁断工程で管理する。また、保
管時に吸脱湿が発生しないように、ポリエチレンラミネ
ート紙等の防湿包装紙や、ポリプロピレンフィルム等で
包装する。In addition, as mentioned above, in order to prevent the product from waving or curling after copying, the moisture content of the product should be kept within the range of 3.5 to 60% immediately after opening. Manage it during the process and cutting process. In addition, to prevent moisture absorption and desorption during storage, it is wrapped in moisture-proof wrapping paper such as polyethylene laminate paper, polypropylene film, etc.
〔実施例〕 以下、実施例によって本発明を説明する。〔Example〕 The present invention will be explained below with reference to Examples.
実施例１
第１表の実施例１に示す通り、ケミカルパルプ（ｃ ｐ
）として、上白古紙パルプを７０％配合し、ＣＰ以外の
パルプとして、グランドパルプ（Ｇ Ｐ）を３０％配合
し、第１表に示すような填料、内添サイズ剤を配合し、
製品水分が５．１％になるように抄紙した。さらに間接
電子写真適性を付与する為に、サイズプレス処理により
、澱粉を１ｇ／ｄ、塩化ナトリウム０．２ ｇ／ｒｒｆ
となるように塗工し、本発明の電子写真用転写紙を得た
。この転写紙の２０℃、６５％ＲＨの平衡水分は、８．
１％であった。Example 1 As shown in Example 1 in Table 1, chemical pulp (cp
), 70% of white paper pulp is blended, 30% of ground pulp (GP) is blended as pulp other than CP, and fillers and internal sizing agents as shown in Table 1 are blended.
The paper was made so that the product moisture content was 5.1%. Furthermore, in order to impart suitability for indirect electrophotography, a size press treatment was performed to add starch to 1 g/d and sodium chloride to 0.2 g/rrf.
The electrophotographic transfer paper of the present invention was obtained by coating the film in such a manner as to obtain the electrophotographic transfer paper of the present invention. The equilibrium moisture content of this transfer paper at 20°C and 65% RH is 8.
It was 1%.
この転写紙の高湿環境でのコピー適性は、次のようにし
て確認した。即ち、この転写紙を２０℃、８５％ＲＦＩ
の環境中で、１００枚積み重ね、１時間机上に放置し、
複写機（Ｆ Ｘ ５９９Ｇ、富士ゼロックス社製）で、
片面コピー、片面多重コピー、両面コピーを行い、発生
したしわの回数と、紙詰まり回数を確認した。その結果
を第１表に示す。The suitability of this transfer paper for copying in a high humidity environment was confirmed as follows. That is, this transfer paper was heated at 20°C and 85% RFI.
In this environment, I stacked 100 sheets and left them on my desk for 1 hour.
With a copying machine (FX 599G, manufactured by Fuji Xerox),
We performed single-sided copying, single-sided multiple copying, and double-sided copying, and checked the number of wrinkles and paper jams that occurred. The results are shown in Table 1.
第１表から明らかなように、ＣＰとして、上白古紙パル
プを７０％配合した効果として、高湿調湿後の走行にお
いても、しわの発生が少なく、紙詰まりが少なく、未印
刷古紙を利用するため白色度の高い転写紙が得られた。As is clear from Table 1, the effect of blending 70% white paper pulp as CP is that even when running after high humidity control, there are fewer wrinkles, fewer paper jams, and the use of unprinted waste paper. As a result, transfer paper with high whiteness was obtained.
実施例２
第１表の実施例２に示す通り、ＣＰとして、上白古紙パ
ルプを６０％、バージンのＬＢＫＰ３０％、合計９０％
を配合し、ＣＰ以外のパルプとして、サーモメカニカル
パルプ（ＴＭＰ）を８０％配合し、第１表に示すような
填料、内添サイズ剤を配合し、製品水分が４．８％にな
るように抄紙した。さらに間接電子写真適性を付与する
為に、サイズプレス処理により、澱粉をＩｇ／ｒｆ、塩
化ナトリウム０．２ ｇ／ｄとなるように塗工し、本発
明の電子写真用転写紙を得た。この転写紙の２０℃、６
５％ＲＨの平衡水分は、７．７％であった。この転写紙
を実施例１と同様の方法でコピー後のしわと紙詰まり回
数を確認した。その結果を第１表に示す。Example 2 As shown in Example 2 in Table 1, the CP used was 60% white paper pulp and 30% virgin LBKP, totaling 90%.
80% of thermomechanical pulp (TMP) was blended as a pulp other than CP, and fillers and internal sizing agents as shown in Table 1 were blended so that the product moisture was 4.8%. Paper was made. Furthermore, in order to impart suitability for indirect electrophotography, starch was coated by size press treatment to give Ig/rf and sodium chloride 0.2 g/d to obtain an electrophotographic transfer paper of the present invention. 20℃ of this transfer paper, 6
Equilibrium moisture at 5% RH was 7.7%. This transfer paper was checked for wrinkles and the number of paper jams after copying in the same manner as in Example 1. The results are shown in Table 1.
第１表から明らかなように、ＣＰを９０％配合した効果
として、高湿調湿後の走行においても、しわの発生がま
ったくなくなり、紙詰まりかない転写紙が得られた。さ
らに、ＣＰ以外の高歩留りパルプの配合が少なく、ＣＰ
として、未印刷古紙及びバージンのＬＢＫＰを使用する
ため、実施例１の場合よりもさらに白色度の高い転写紙
が得られた。As is clear from Table 1, the effect of blending 90% CP was that even when running after high humidity control, there was no wrinkles at all, and transfer paper was obtained that did not cause paper jams. Furthermore, the content of high-yield pulp other than CP is small, and CP
Since unprinted waste paper and virgin LBKP were used, a transfer paper with even higher whiteness than in Example 1 was obtained.
実施例３
第１表の実施例３に示す通り、ＣＰとして、上質紙、上
質コート紙、オフセット印刷物、感熱紙等の模造古紙Ｄ
ＩＰを６０％とバージンのＬＢＫＰを１０％、合計７０
％配合し、ＣＰ以外のパルプとして、ＴＭＰを２０％と
ＧＰを１０％配合し、第１表に示すような填料、内添サ
イズ剤を配合し、製品水分が５．５％になるように抄紙
した。さらに間接電子写真適性を付与する為に、サイズ
プレス処理により、澱粉を１ ｇ／ｒｒｆ、塩化ナトリ
ウム０．２ ｇ／ばとなるように塗工し、本発明の電子
写真用転写紙を得た。この転写紙の２０℃、６５％Ｒ１
１の平衡水分は、８．０％であった。この転写紙を実施
例１と同様の方法でコピー後のしわと紙詰まり回数を確
認した。その結果を第１表に示す。Example 3 As shown in Example 3 in Table 1, as CP, imitation waste paper D such as high quality paper, high quality coated paper, offset printed matter, thermal paper, etc.
60% IP and 10% virgin LBKP, total 70
%, and as pulp other than CP, 20% TMP and 10% GP were blended, fillers and internal sizing agents as shown in Table 1 were blended, and the product moisture was 5.5%. Paper was made. Furthermore, in order to impart suitability for indirect electrophotography, the paper was coated with starch at 1 g/rrf and sodium chloride at 0.2 g/ba by size press treatment to obtain an electrophotographic transfer paper of the present invention. . 20℃, 65% R1 of this transfer paper
The equilibrium moisture content of No. 1 was 8.0%. This transfer paper was checked for wrinkles and the number of paper jams after copying in the same manner as in Example 1. The results are shown in Table 1.
第１表から明らかなように、ＣＰを７０％配合した効果
として、高湿調湿後の走行においても、しわの発生が少
なく、紙詰まりが少ない転写紙か得られた。As is clear from Table 1, as an effect of blending 70% CP, a transfer paper with fewer wrinkles and fewer paper jams was obtained even when running after high humidity control.
実施例４
第１表の実施例４に示す通り、ＣＰとして、上質紙、上
質コート紙、オフセット印刷物、感熱紙等の模造古紙Ｄ
ＩＦを４０％とバージンのＬＢＫＰを３０％、合計７０
％配合し、ＣＰ以外のパルプとして、ＧＰ−を２０％と
ケミグランドパルプ（ＣＧＰ）を１０％配合し、第１表
に示すような填料、内添サイズ剤を配合し、製品水分か
４．２％になるように抄紙した。さらに間接電子写真適
性を付与する為に、サイズプレス処理により、澱粉を１
ｇ／ｒｒｒ、塩化ナトリウム０．２ｇ／ｎｆとなるよ
うに塗工し、本発明の電子写真用転写紙を得た。この転
写紙の２０℃、６５％ＲＨの平衡水分は、８．２％であ
った。この転写紙を実施例１と同様の方法でコピー後の
しわと紙詰まり回数を確認した。その結果を第１表に示
す。Example 4 As shown in Example 4 in Table 1, as CP, imitation waste paper D such as high quality paper, high quality coated paper, offset printed matter, thermal paper, etc.
40% IF and 30% virgin LBKP, total 70
%, and as pulp other than CP, 20% GP- and 10% Chemi-Grande Pulp (CGP) are blended, fillers and internal sizing agents as shown in Table 1 are blended, and the product moisture content is 4. The paper was made to have a ratio of 2%. Furthermore, in order to impart suitability for indirect electrophotography, starch was added to
g/rrr and sodium chloride 0.2 g/nf to obtain an electrophotographic transfer paper of the present invention. The equilibrium moisture content of this transfer paper at 20° C. and 65% RH was 8.2%. This transfer paper was checked for wrinkles and the number of paper jams after copying in the same manner as in Example 1. The results are shown in Table 1.
第１表から明らかなように、ＣＰを７０％配合した効果
として、高湿調湿後の走行においても、しわの発生が少
なく、紙詰まりが少ない転写紙か得られた。また、実施
例３の場合と比較して、より高白色度の転写紙が得られ
た。As is clear from Table 1, as an effect of blending 70% CP, a transfer paper with fewer wrinkles and fewer paper jams was obtained even when running after high humidity control. Moreover, compared to the case of Example 3, a transfer paper with higher whiteness was obtained.
実施例５
第１表の実施例５に示す通り、ＣＰとして、上質紙、上
質コート紙、オフセット印刷物、感熱紙等の模造古紙Ｄ
ＩＰを２０％とバージンのＬＢＫＰを５０％、新聞古紙
ＤＩＰ中ｃｐ分３％、合計７３％配合し、ＣＰ以外のパ
ルプとして、新聞古紙ＤＩＰ中ＣＰ以外のパルプ分２７
％を配合し、第１表に示すような填料、内添サイズ剤を
配合し、製品水分が４．５％になるように抄紙した。さ
らに間接電子写真適性を付与する為に、サイズプレス処
理により、澱粉をＩｇ／ｒｒｒ、塩化ナトリウム０．２
ｇ／イとなるように塗工し、本発明の電子写真用転写紙
を得た。この転写紙の２０℃、６５％ＲＨの平衡水分は
、８１％であった。この転写紙を実施例１と同様の方法
でコピー後のしわと紙詰まり回数を確認した。その結果
を第１表に示す。Example 5 As shown in Example 5 in Table 1, as CP, imitation waste paper D such as high quality paper, high quality coated paper, offset printed matter, thermal paper, etc.
A mixture of 20% IP, 50% virgin LBKP, and 3% CP content in used newspaper DIP, for a total of 73%, and as pulp other than CP, pulp other than CP in used newspaper DIP is 27%.
%, fillers and internal sizing agents as shown in Table 1 were blended, and paper was made so that the product moisture content was 4.5%. Furthermore, in order to impart suitability for indirect electrophotography, starch was reduced to Ig/rrr and sodium chloride 0.2 by size press treatment.
The electrophotographic transfer paper of the present invention was obtained by coating to give a ratio of g/a. The equilibrium moisture content of this transfer paper at 20° C. and 65% RH was 81%. This transfer paper was checked for wrinkles and the number of paper jams after copying in the same manner as in Example 1. The results are shown in Table 1.
第１表から明らかなように、ＣＰを７３％配合した効果
として、高湿調湿後の走行においても、しわの発生が少
なく、紙詰まりが少ない転写紙が得られた。As is clear from Table 1, as an effect of blending 73% CP, a transfer paper with less wrinkles and fewer paper jams was obtained even when running after high humidity control.
さらに、上質模造古紙ＤＩＰより安価なバージンＬＢＫ
Ｐ及び新聞古紙ＤＩＰをより多く配合したことにより、
安価な転写紙が得られた。Furthermore, virgin LBK is cheaper than high-quality imitation waste paper DIP.
By incorporating more P and newspaper waste DIP,
An inexpensive transfer paper was obtained.
さらにまた、古紙脱墨処理を受けていない、すなわち、
パルプの機械的、化学的ダメージの少ないバージンＬＢ
ＫＰを多く含むことにより、複写機内で発生する紙粉が
少ない転写紙が得られた。Furthermore, the waste paper has not been subjected to deinking treatment, i.e.
Virgin LB with less mechanical and chemical damage to pulp
By containing a large amount of KP, a transfer paper with less paper dust generated in a copying machine was obtained.
実施例６
第１表の実施例６に示す通り、ＣＰとして、上質電子写
真用紙古紙ＤＩＰを７０％配合し、ＣＰ以外のパルプと
して、リファイナー砕木パルプ（ＲＧＰ）１０％とＴＭ
Ｐ２０％配合し、第１表に示すような填料、内添サイズ
剤を配合し、製品水分が３５％になるように抄紙した。Example 6 As shown in Example 6 in Table 1, 70% high-quality electrophotographic paper DIP was blended as CP, and 10% refiner groundwood pulp (RGP) and TM were used as pulp other than CP.
P20% was blended, fillers and internal sizing agents as shown in Table 1 were blended, and paper was made so that the product moisture was 35%.
さらに間接電子写真適性を付与する為に、サイズプレス
処理により、澱粉をＬｇ／ｄ、塩化ナトリウム０゜２ｇ
／ｍ’となるように塗工し、本発明の電子写真用転写紙
を得た。この転写紙の２０℃、６５％ＲＨの平衡水分は
、７．９％であった。この転写紙を実施例１と同様の方
法でコピー後のしわと紙詰まり回数を確認した。Furthermore, in order to impart suitability for indirect electrophotography, a size press treatment was performed to reduce starch to Lg/d and sodium chloride to 0.2 g.
/m' to obtain an electrophotographic transfer paper of the present invention. The equilibrium moisture content of this transfer paper at 20° C. and 65% RH was 7.9%. This transfer paper was checked for wrinkles and the number of paper jams after copying in the same manner as in Example 1.
その結果を第１表に示す。The results are shown in Table 1.
第１表から明らかなように、ＣＰを７０％配合した効果
として、高湿調湿後の走行においても、しわの発生がな
く、紙詰まりがない転写紙が得られた。As is clear from Table 1, as an effect of blending 70% CP, a transfer paper was obtained that did not generate wrinkles and was free from paper jams even during running after high humidity control.
実施例７
第１表の実施例７に示す通り、ＣＰとして、上質電子写
真用紙古紙ＤＩＰを５０％、バージンのＬＢＫＰを２０
％配合し、ＣＰ以外のパルプとして、ＧＰ３０％配合し
、第１表に示すような填料、内添サイズ剤を配合し、製
品水分が６．０％になるように抄紙した。さらに間接電
子写真適性を付与する為に、サイズプレス処理により、
澱粉を１ｇ／ｒｄ、塩化ナトリウム０．２ ｇ／ｄとな
るように塗工し、本発明の電子写真用転写紙を得た。こ
の転写紙の２０℃、６５％ＲＨの平衡水分は、７．９％
であった。この転写紙を実施例１と同様の方法でコピー
後のしわと紙詰まり回数を確認した。その結果を第１表
に示す。Example 7 As shown in Example 7 in Table 1, as CP, 50% of high quality electrophotographic paper DIP and 20% of virgin LBKP were used.
%, GP was blended at 30% as pulp other than CP, fillers and internal sizing agents as shown in Table 1 were blended, and paper was made so that the product moisture was 6.0%. Furthermore, in order to make it suitable for indirect electrophotography, size press processing is used to make it suitable for indirect electrophotography.
The electrophotographic transfer paper of the present invention was obtained by coating starch at 1 g/rd and sodium chloride at 0.2 g/d. The equilibrium moisture content of this transfer paper at 20°C and 65% RH is 7.9%.
Met. This transfer paper was checked for wrinkles and the number of paper jams after copying in the same manner as in Example 1. The results are shown in Table 1.
第１表から明らかなように、ＣＰを７０％配合した効果
として、高湿調湿後の走行においても、しわの発生が少
なく、紙詰まりが少ない転写紙が得られた。As is clear from Table 1, as an effect of blending 70% CP, a transfer paper with fewer wrinkles and fewer paper jams was obtained even during running after high humidity control.
以下余白
比較例１〜３
実施例１及び２と比較するために、ＣＰとして、上白古
紙パルプとバージンのＬＢＫＰを組み合わせて、４０〜
６０％配合し、第２表に示すような製品水分、填料、内
添サイズ剤、表面サイズ剤処方で抄紙した。得られた転
写紙について、実施例１と同様の実験方法により、コピ
ー後のしわと紙詰まりの発生回数を確認した。さらに、
２０℃。、６５％ＲＨの平衡水分を確認した。結果を後
記第２表に示す。Margin Comparative Examples 1 to 3 Below, in order to compare with Examples 1 and 2, a combination of white waste paper pulp and virgin LBKP was used as the CP,
Paper was made using the product moisture, filler, internal sizing agent, and surface sizing agent formulations as shown in Table 2. The resulting transfer paper was checked for wrinkles and the number of paper jams after copying using the same experimental method as in Example 1. moreover,
20℃. , an equilibrium moisture content of 65% RH was confirmed. The results are shown in Table 2 below.
比較例４〜６
実施例３〜５と比較する為に、ＣＰとして、上質紙、上
質コート紙、オフセット印刷物、感熱紙等の模造古紙Ｄ
ＩＰとバージンのＬＢＫＰを組み合わせて、４０〜６０
％配合し、第２表に示したような製品水分、填料、内添
サイズ剤、表面サイズ剤処方で抄紙した。得られた転写
紙について、実施例１と同様の実験方法により、コピー
後のしわと紙詰まりの発生回数を確認した。さらに２０
’Ｃ１６５％ＲＨの平衡水分を確認した。結果を第２表
に示す。Comparative Examples 4 to 6 In order to compare with Examples 3 to 5, imitation waste paper D such as high quality paper, high quality coated paper, offset printed matter, thermal paper, etc. was used as CP.
Combining IP and virgin LBKP, 40-60
%, and paper was made with the product moisture, filler, internal sizing agent, and surface sizing agent formulations shown in Table 2. The resulting transfer paper was checked for wrinkles and the number of paper jams after copying using the same experimental method as in Example 1. 20 more
'C165%RH equilibrium moisture was confirmed. The results are shown in Table 2.
比較例７および８
実施例６および７と比較する為に、ＣＰとして、上質電
子写真用古紙ＤＩＰとバージンのＬＢＫＰを組み合わせ
て、４０〜６０％配合し、第２表に示したような製品水
分、填料、内添サイズ剤、表面サイズ剤処方で抄紙した
。得られた転写紙について、実施例１と同様の実験方法
により、コピー後のしわと紙詰まりの発生回数を確認し
た。さらに２０℃、６５％ＲＨの平衡水分を確認した。Comparative Examples 7 and 8 In order to compare with Examples 6 and 7, high-quality electrophotographic waste paper DIP and virgin LBKP were combined as CP at 40 to 60%, and the product moisture content was as shown in Table 2. Paper was made using the following formulations: filler, internal sizing agent, and surface sizing agent. The resulting transfer paper was checked for wrinkles and the number of paper jams after copying using the same experimental method as in Example 1. Furthermore, the equilibrium moisture content at 20° C. and 65% RH was confirmed.
結果を第２表に示す。The results are shown in Table 2.
比較例９及び１０
製品水分のしわ、紙詰まりに対する影響を確認するため
に、実施例１及び７と同様のパルプ配合、填料、内添サ
イズ剤、表面サイズ剤処方で、製品水分を各々６．９％
及び６．２％になるように抄紙した。得られた転写紙に
ついて、実施例１と同様の実験方法により、コピー後の
しわと紙詰まりの発生回数を確認した。さらに２０℃、
６５％ＲＨの平衡水分を確認した。結果を第２表に示す
。Comparative Examples 9 and 10 In order to confirm the effect of product moisture on wrinkles and paper jams, the same pulp composition, filler, internal sizing agent, and surface sizing agent formulation as in Examples 1 and 7 were used, and the product moisture was 6. 9%
and 6.2%. The resulting transfer paper was checked for wrinkles and the number of paper jams after copying using the same experimental method as in Example 1. Furthermore, 20℃,
Equilibrium moisture of 65% RH was confirmed. The results are shown in Table 2.
本発明の電子写真用転写紙は、上記の構成を有するから
、従来の古紙パルプを含有する再生紙では、使用不能で
あった高湿環境下での間接電子写真式ハードコピー装置
による苛酷なコピー操作に適用でき、特に、波打ちが小
さく、カールが安定化し、しわや紙詰まり等のトラブル
が改善される。Since the electrophotographic transfer paper of the present invention has the above-mentioned structure, it can withstand harsh copying using an indirect electrophotographic hard copy device in a high humidity environment, which is impossible to use with conventional recycled paper containing waste paper pulp. It can be applied to operations, and in particular, it reduces waviness, stabilizes curling, and improves problems such as wrinkles and paper jams.
出願人 富士ゼロックス株式会社Applicant: Fuji Xerox Co., Ltd.
Claims (1)
比率が７０％以上であり、水分含有量３．５〜６．０％
であることを特徴とする電子写真用転写紙。(1) Contains waste paper pulp, the ratio of chemical pulp in the total pulp is 70% or more, and the moisture content is 3.5 to 6.0%.
An electrophotographic transfer paper characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17529290A JP2969368B2 (en) | 1990-07-04 | 1990-07-04 | Transfer paper for electrophotography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17529290A JP2969368B2 (en) | 1990-07-04 | 1990-07-04 | Transfer paper for electrophotography |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0465596A true JPH0465596A (en) | 1992-03-02 |
| JP2969368B2 JP2969368B2 (en) | 1999-11-02 |
Family
ID=15993566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17529290A Expired - Lifetime JP2969368B2 (en) | 1990-07-04 | 1990-07-04 | Transfer paper for electrophotography |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2969368B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6667140B2 (en) | 2000-09-01 | 2003-12-23 | Canon Kabushiki Kaisha | Toner and image forming method |
| US6855471B2 (en) | 2002-01-15 | 2005-02-15 | Canon Kabushiki Kaisha | Toner and image-forming method |
| JP2016047978A (en) * | 2014-08-28 | 2016-04-07 | デュプロ精工株式会社 | Humidification treatment system for recycled paper |
-
1990
- 1990-07-04 JP JP17529290A patent/JP2969368B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6667140B2 (en) | 2000-09-01 | 2003-12-23 | Canon Kabushiki Kaisha | Toner and image forming method |
| US6855471B2 (en) | 2002-01-15 | 2005-02-15 | Canon Kabushiki Kaisha | Toner and image-forming method |
| JP2016047978A (en) * | 2014-08-28 | 2016-04-07 | デュプロ精工株式会社 | Humidification treatment system for recycled paper |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2969368B2 (en) | 1999-11-02 |
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