JPH0225800B2 - - Google Patents
Info
- Publication number
- JPH0225800B2 JPH0225800B2 JP58208862A JP20886283A JPH0225800B2 JP H0225800 B2 JPH0225800 B2 JP H0225800B2 JP 58208862 A JP58208862 A JP 58208862A JP 20886283 A JP20886283 A JP 20886283A JP H0225800 B2 JPH0225800 B2 JP H0225800B2
- Authority
- JP
- Japan
- Prior art keywords
- eraser
- solvent
- parts
- toner
- cal
- 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
Links
- 239000002904 solvent Substances 0.000 claims description 30
- 239000000843 powder Substances 0.000 claims description 18
- 239000003094 microcapsule Substances 0.000 claims description 14
- MTZQAGJQAFMTAQ-UHFFFAOYSA-N ethyl benzoate Chemical compound CCOC(=O)C1=CC=CC=C1 MTZQAGJQAFMTAQ-UHFFFAOYSA-N 0.000 claims description 10
- RFFLAFLAYFXFSW-UHFFFAOYSA-N 1,2-dichlorobenzene Chemical compound ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 5
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 claims description 4
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 claims description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 4
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000008096 xylene Substances 0.000 claims description 4
- 239000011162 core material Substances 0.000 claims description 3
- NPDACUSDTOMAMK-UHFFFAOYSA-N 4-Chlorotoluene Chemical compound CC1=CC=C(Cl)C=C1 NPDACUSDTOMAMK-UHFFFAOYSA-N 0.000 claims description 2
- 238000003702 image correction Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- 239000004800 polyvinyl chloride Substances 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 229920000915 polyvinyl chloride Polymers 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 description 4
- 239000004927 clay Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- QCDWFXQBSFUVSP-UHFFFAOYSA-N 2-phenoxyethanol Chemical compound OCCOC1=CC=CC=C1 QCDWFXQBSFUVSP-UHFFFAOYSA-N 0.000 description 2
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229960005323 phenoxyethanol Drugs 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012424 soybean oil Nutrition 0.000 description 2
- 239000003549 soybean oil Substances 0.000 description 2
- -1 trichlorethylene Chemical class 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OCJBOOLMMGQPQU-UHFFFAOYSA-N 1,4-dichlorobenzene Chemical compound ClC1=CC=C(Cl)C=C1 OCJBOOLMMGQPQU-UHFFFAOYSA-N 0.000 description 1
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229920006385 Geon Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920001756 Polyvinyl chloride acetate Polymers 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229940117389 dichlorobenzene Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
Landscapes
- Photoreceptors In Electrophotography (AREA)
- Developing Agents For Electrophotography (AREA)
Description
本発明は静電複写法により形成された画像を修
正する為の消しゴムに関するものである。
近年、静電複写法が工業図面の作成に用いられ
るようになり、使用される紙の中でも、特にトレ
ーシングペーパーの様な透明性の高い紙に画像を
形成させたり、また製図用フイルムに画像を形成
させた第２原図として用途が増大している。
静電複写法でトレーシングペーパー等普通紙お
よび製図用フイルムに画像を形成せしめた、いわ
ゆる第２原図は、画像がトナーと称される着色合
成樹脂粉末の溶融固着したもので構成されている
為、単なる消しゴム修正では修正出来ない場合が
多い。
従来、このような第２原図の修正は、トナーの
溶剤を画像の修正部に直接塗布し、トナーを溶解
した後、これを拭取るといつた方法が取られてい
た。
トナーの溶剤としてはトナーを良く溶かす、ベ
ンゼン、トルエン、キシレンなどの芳香族炭化水
素やトナーの溶融固着剤としてのトリクロルエチ
レンなどの塩化炭化水素、また、これらの他に
も、エステル類、ケトン類、脂肪族炭化水素等を
単独又は適当に混合して使用している。
しかし、この方法の場合、トナーを溶解した
後、拭取る為、溶解性の良い溶剤ほど、紙面、フ
イルム面を汚す傾向を有している。
また、汚れを少なくする為に、水又は低級アル
コールとこれと相溶性のあるケトン類、エーテル
類、エステル類を混合した、溶剤を使用した（特
公昭48―35420号）例等があるが、修正後の乾燥
時間を短かくする為に低沸点、揮発性溶剤が使用
されている。この為、修正操作を迅速に行なわね
ばならず、簡単な修正法とは言えなかつた。
さらに、画像に直接、溶剤を塗布する為、繊維
の密でない紙については、溶解したトナーが紙の
繊維の中に浸透してしまい修正が不可能であつ
た。
本発明者等は、トナーの溶剤を消しゴム中に含
有せしめることが出来れば、上述せる問題点が解
消されるとの見地に立ち、鋭意研究の結果、遂に
本発明を完成したものである。
即ち、本発明は、下記の条件を有し、沸点120
℃以上の溶剤であるキシレン、エチルベンゼン、
クロルベンゼン、ｏ―ジクロルベンゼン、ｐ―ク
ロルトルエン、アセトフエノン、安息香酸エチ
ル、２―フエノキシエタノールより選ばれた一種
もしくは二種以上を消しゴム中に含有せしめた静
電複写画像修正用消しゴムを要旨とするものであ
る。
〈条件〉
水素結合力が弱の時 溶解性パラメーター(8)が
7.0〜11.1（cal／cm2）1/2
水素結合力が中の時 溶解性パラメーター(8)が
7.4〜14.7（cal／cm2）1/2
本発明は、トナーの溶剤を消しゴム中に含有せ
しめたので溶剤が直接紙面、フイルム面に接しな
いので、紙面、フイルム面を汚すことがなく、
又、繊維が密でない紙でも修正を可能としたもの
である。
以下、本発明を詳細に説明する。
消しゴム中に含有される溶剤としてはトナーを
溶解する溶剤で、消しゴム原材料中に分散して加
熱成型する事より沸点が120℃以上望ましくは200
℃以上のものであることが必要である。
又、トナーのバインダーの主な樹脂であるポリ
スチレンの溶解性パラメーターはメーカー、グレ
ードにより多少異なるが、その値は、水素結合力
が（弱）で7.0〜11.1（〔cal／cm2〕1/2）、（中）で7.
4
〜14.7（〔cal／cm2〕1/2）である。更に、グレード、
コポリマーによつては、水素結合力が（強）で
9.5〜14.5（〔cal／cm2）1/2）、の値をもつものもある
。
又、溶剤は、画像をより、確実に消去するため
に、トナーに使用されている樹脂であるポリスチ
レンと化学構造的に類似した物質を使用すること
が勘要である。
この為、消しゴムに含有される溶剤としては、
トナーを溶解させる条件として溶解性パラメータ
ーが水素結合力が（弱）で7.0〜11.1、（中）で7.4
〜14.5のもので、かつ、消しゴム原材料中に分散
して、加熱成型するため、上述した沸点が120℃
以上、好ましくは200℃以上であり、しかも、ポ
リスチレンと化学構造的に類似（具体的にはベン
ゼン核を有するもの）したものとなる。上述の溶
剤の具体例を次表に示す。
The present invention relates to an eraser for correcting images formed by electrostatography. In recent years, electrostatic copying has come to be used to create industrial drawings, and among the papers used, it is used to form images on highly transparent paper such as tracing paper, and to form images on drafting film. Its use as a second original drawing is increasing. The so-called second original image, in which an image is formed on plain paper such as tracing paper and drafting film using the electrostatic copying method, is composed of fused and fixed colored synthetic resin powder called toner. , in many cases, it cannot be corrected with a simple eraser correction. Conventionally, such correction of the second original image has been carried out by applying a toner solvent directly to the corrected portion of the image, dissolving the toner, and then wiping it off. Toner solvents include aromatic hydrocarbons such as benzene, toluene, and xylene, which dissolve toner well, and chlorinated hydrocarbons, such as trichlorethylene, which serve as toner melting and fixing agents.In addition to these, esters and ketones are also used. , aliphatic hydrocarbons, etc. are used alone or in a suitable mixture. However, in this method, since the toner is wiped off after being dissolved, a solvent with better solubility tends to stain the paper surface and film surface. In addition, in order to reduce stains, there are examples of using solvents made by mixing water or lower alcohols with compatible ketones, ethers, and esters (Japanese Patent Publication No. 35420/1973). Low boiling point, volatile solvents are used to shorten the drying time after correction. For this reason, the correction operation had to be performed quickly, and it could not be said to be an easy correction method. Furthermore, since the solvent is applied directly to the image, it is impossible to correct paper whose fibers are not dense because the dissolved toner penetrates into the fibers of the paper. The present inventors have finally completed the present invention as a result of intensive research based on the viewpoint that the above-mentioned problems can be solved if the toner solvent can be contained in the eraser. That is, the present invention has the following conditions, and has a boiling point of 120
Xylene, ethylbenzene, which is a solvent above ℃
An eraser for electrostatic copy image correction containing one or more selected from chlorobenzene, o-dichlorobenzene, p-chlorotoluene, acetophenone, ethyl benzoate, and 2-phenoxyethanol. This is a summary. <Conditions> When the hydrogen bonding force is weak, the solubility parameter (8) is
7.0 to 11.1 (cal/cm 2 ) When the 1/2 hydrogen bond strength is medium, the solubility parameter (8) is
7.4 to 14.7 (cal/cm 2 ) 1/2 In the present invention, since the toner solvent is contained in the eraser, the solvent does not come into direct contact with the paper surface or film surface, so the paper surface or film surface is not stained.
Furthermore, it is possible to correct even paper whose fibers are not dense. The present invention will be explained in detail below. The solvent contained in the eraser is a solvent that dissolves the toner and has a boiling point of 120℃ or higher, preferably 200℃, since it is dispersed in the eraser raw material and heated to form it.
It is necessary that the temperature is above ℃. In addition, the solubility parameters of polystyrene, which is the main resin of the toner binder, vary slightly depending on the manufacturer and grade, but the values are 7.0 to 11.1 ([cal/cm 2 ] 1/2 ), (middle) 7.
Four
~14.7 ([cal/cm 2 ] 1/2 ). Furthermore, grade,
Some copolymers have (strong) hydrogen bonding forces.
Some have values of 9.5 to 14.5 ([cal/cm 2 ) 1/2 ]. Furthermore, in order to erase images more reliably, it is important to use a substance chemically similar to polystyrene, which is the resin used in the toner, as the solvent. For this reason, the solvent contained in the eraser is
The solubility parameters as conditions for dissolving toner are hydrogen bond strength (weak) of 7.0 to 11.1 and (medium) of 7.4.
~14.5, and because it is dispersed in the eraser raw material and heated and molded, the boiling point mentioned above is 120℃.
As mentioned above, the temperature is preferably 200°C or higher, and the chemical structure is similar to polystyrene (specifically, it has a benzene nucleus). Specific examples of the above-mentioned solvents are shown in the following table.
【表】
これらの溶剤は一種もしくは二種以上の混合物
として使用できる。
溶剤の使用量としては消しゴム全量に対して５
〜50重量％、好ましくは５〜30重量％である。
次に溶剤を消しゴム中に含有させる形態として
は、溶剤を芯物質としたマイクロカプセルとして
含有させるか、溶剤を吸着させた多孔性粉体とし
て含有させる形態が考えられる。
前者は、経時的な性能の劣化が少ないというメ
リツトがある。マイクロカプセルの製法として
は、コアセルペーシヨン法、粉床法、in Situ重
合法、界面沈殿法など従来公知の方法が採用で
き、消しゴムを使用中に圧力により容易にマイク
ロカプセルが破壊されるものであればよい。
又、後者は経時的な性能は前者に比べてやや劣
るものの、製造の容易性、低コストで製造できる
というメリツトがある。
多孔性粉体としては、吸流量の比較的多い無機
又は有機物から適宜選択して使用すればよく、具
体例としては、活性アルミナ、タルク、ベントナ
イト、炭酸カルシウム、活性白土、多孔質樹脂粉
体などが挙げられる。
尚、マイクロカプセル材（壁物質）並びに多孔
性粉体と溶剤の使用量は、マイクロカプセル材、
多孔性粉体の種類によつて必ずしも一様ではない
が、マイクロカプセル材並びに多孔性粉体に比
し、溶剤が少なすぎる場合には、消去法の効果が
少なく、又、多すぎる場合には、溶剤が消しゴム
中に浸み出したり、或いは消しゴムの表面に移行
したりする事があり、マイクロカプセル材並びに
多孔性粉体と溶剤との比（重量）を１：0.4〜
１：10の範囲に設定することが好ましい。
次に消しゴムの製造方法について簡単に述べ
る。
従来より知られている消しゴム基材、特に好ま
しくはポリ塩化ビニル、ポリ塩化ビニルとポリ酢
酸ビニルの共重合体に可塑剤、安定剤、充填材、
更に必要に応じて顔料、香料、研磨材などを加え
てペースト状物とした。
このペースト状物に前述したマイクロカプセル
材及び／又は多孔性粉体を加え、均一に分散させ
た後、加熱整形して消しゴムとすればよい。
上述した本発明の消しゴムは、マイクロカプセ
ル材及び／又は多孔性粉体に特定の溶剤を保持さ
せたため、経時的に安定で、かつ消去時に紙面、
フイルム面を汚すことなく、繊維が密でない紙で
もトナーを溶解した溶剤を消し層により吸着せし
めることが出来るので、トナーを溶解した溶剤が
紙に浸透することがなく、消去修正が可能とな
る。
以下、実施例に基づき本発明を詳細に説明す
る。尚、実施例中「部」とあるのは「重量部」を
示す。
実施例 １
（マイクロカプセル製法、粉床法）
２―フエノキシエタノール105部と炭酸カルシ
ウム75部を攪拌混合して、ペースト180部を得る。
これを超微粉シリカ粉30部で高速攪拌してシリ
カ壁マイクロカプセルを得た。
（消しゴムの製法）
ポリ塩化ビニル（日本ゼオン(株)製、Geon121）
150部
ジオクチルフタレート（可塑剤） 150部
エポキシ化大豆油（安定剤） ３部
炭酸カルシウム（充填剤） 10部
上記成分を攪拌混合して、塩ビペーストを得
た。
この塩ビペースト313部に上述のカプセル210部
を加え、攪拌混合した後、110℃、20分間、プレ
ス成型して消しゴムを得た。
実施例 ２
（マイクロカプセル製法、液中硬化法）
同心二重オリフイス管の内側にキシレン100部、
外側にアルギン酸ナトリウムスト0.6重量％、ポ
リビニルアルコール12重量％、グリセリン12重量
％、水75.4重量％よりなる液を供給して、射出し
て20重量％塩化カルシウム水溶液中に投入し、キ
シレン入りのマイクロカプセルを得た。
（消しゴムの製法）
Geon121 150部
ジオクチルフタレート（可塑剤） 150部
エポキシ化大豆油（安定剤） ３部
炭酸カルシウム（充填剤） 50部
上記成分を攪拌混合して、塩ビペーストを得
た。
この塩ビペースト353部に上述のマイクロカプ
セル100部を攪拌混合した後、110℃、20分間、プ
レス成型して消しゴムを得た。
実施例 ３
（溶剤吸着多孔性粉体、無機物）
活性白土100部を高速攪拌混合し、攪拌中にｏ
―ジクロルベンゼン50部を滴下して、ｏ―ジクロ
ルベンゼンを吸着させた活性白土粉体を得た。
（消しゴムの製法）
実施例１中に使用した塩ビペースト313部に上
述のｏ―ジクロルベンゼンを吸着させた活性白土
粉体150部を攪拌混合した後、110℃、20分間、プ
レス成型して消しゴムを得た。
実施例 ４
（溶剤吸着多孔性粉体、有機物）
アピセルTG−101（旭化成(株)製、結晶セルロー
ス）100部を高速攪拌し、攪拌中に安息香酸エチ
ル50部を滴下して、安息香酸エチルを吸着した結
晶セルロース粉体を得た。
（消しゴムの製法）
実施例２に使用した塩ビペースト353部に上述
した安息香酸エチルを吸着した結晶セルロース粉
体150部を加え、攪拌混合した後、110℃、20分
間、プレス成型して消しゴムを得た。
上述で得られた実施例１〜４の消しゴムで、ト
レーシングペーパーおよび製図用フイルムに静電
複写法で形成した画像を10回擦過したところ画像
は容易に消去修正できた。
又、これらの修正跡に汚れはみられなかつた。
以上のように、本発明の静電複写画像修正用消
しゴムは、優れた消去法を示し、又、修正跡の汚
れも少ないものである。[Table] These solvents can be used alone or as a mixture of two or more. The amount of solvent used is 5 for the total amount of eraser.
-50% by weight, preferably 5-30% by weight. Next, as the form in which the solvent is contained in the eraser, it can be contained in the form of microcapsules with the solvent as a core material, or in the form of porous powder on which the solvent is adsorbed. The former has the advantage of less deterioration in performance over time. Conventional methods such as core cell pacification method, powder bed method, in situ polymerization method, and interfacial precipitation method can be used to manufacture microcapsules, and microcapsules can be easily destroyed by pressure while using an eraser. That's fine. Although the latter has slightly inferior performance over time, it has the advantage of being easy to manufacture and can be manufactured at low cost. The porous powder may be appropriately selected from inorganic or organic substances that have a relatively large amount of absorption, and specific examples include activated alumina, talc, bentonite, calcium carbonate, activated clay, and porous resin powder. can be mentioned. In addition, the amount of microcapsule material (wall material), porous powder, and solvent used depends on the microcapsule material,
Although it is not necessarily uniform depending on the type of porous powder, if there is too little solvent compared to the microcapsule material and porous powder, the elimination method will be less effective, and if it is too much, the effect of the elimination method will be small. , the solvent may seep into the eraser or migrate to the surface of the eraser, so the ratio (weight) of the microcapsule material or porous powder to the solvent should be 1:0.4 or more.
It is preferable to set the ratio in the range of 1:10. Next, the method for manufacturing the eraser will be briefly described. Conventionally known eraser base materials, particularly preferably polyvinyl chloride, a copolymer of polyvinyl chloride and polyvinyl acetate, are combined with plasticizers, stabilizers, fillers,
Further, pigments, fragrances, abrasives, etc. were added as necessary to form a paste. The above-mentioned microcapsule material and/or porous powder may be added to this paste-like material, uniformly dispersed, and then heated and shaped to form an eraser. The above-mentioned eraser of the present invention has a specific solvent retained in the microcapsule material and/or porous powder, so it is stable over time, and the paper surface and
Since the solvent in which the toner is dissolved can be adsorbed by the erasing layer even on paper whose fibers are not dense without staining the film surface, the solvent in which the toner is dissolved does not permeate into the paper, and erasure correction is possible. Hereinafter, the present invention will be explained in detail based on Examples. In addition, "parts" in the examples indicate "parts by weight." Example 1 (Microcapsule production method, powder bed method) 105 parts of 2-phenoxyethanol and 75 parts of calcium carbonate are stirred and mixed to obtain 180 parts of paste. This was stirred at high speed with 30 parts of ultrafine silica powder to obtain silica wall microcapsules. (Eraser manufacturing method) Polyvinyl chloride (manufactured by Nippon Zeon Co., Ltd., Geon121)
150 parts dioctyl phthalate (plasticizer) 150 parts epoxidized soybean oil (stabilizer) 3 parts calcium carbonate (filler) 10 parts The above components were stirred and mixed to obtain a vinyl chloride paste. 210 parts of the above-mentioned capsules were added to 313 parts of this PVC paste, stirred and mixed, and then press-molded at 110°C for 20 minutes to obtain an eraser. Example 2 (Microcapsule manufacturing method, liquid curing method) 100 parts of xylene was placed inside a concentric double orifice tube.
A liquid consisting of 0.6% by weight of sodium alginate, 12% by weight of polyvinyl alcohol, 12% by weight of glycerin, and 75.4% by weight of water is supplied to the outside, and is injected into a 20% by weight calcium chloride aqueous solution. Got the capsule. (Production of eraser) Geon 121 150 parts Dioctyl phthalate (plasticizer) 150 parts Epoxidized soybean oil (stabilizer) 3 parts Calcium carbonate (filler) 50 parts The above components were stirred and mixed to obtain a vinyl chloride paste. 100 parts of the above-mentioned microcapsules were stirred and mixed with 353 parts of this PVC paste, and then press-molded at 110°C for 20 minutes to obtain an eraser. Example 3 (Solvent-adsorbing porous powder, inorganic material) 100 parts of activated clay was mixed with high speed stirring, and o
- 50 parts of dichlorobenzene was added dropwise to obtain activated clay powder adsorbed with o-dichlorobenzene. (Production method of eraser) After stirring and mixing 150 parts of the activated clay powder on which o-dichlorobenzene was adsorbed to 313 parts of the PVC paste used in Example 1, the mixture was press-molded at 110°C for 20 minutes. I got an eraser. Example 4 (Solvent-adsorbing porous powder, organic substance) 100 parts of Apicel TG-101 (manufactured by Asahi Kasei Corporation, crystalline cellulose) was stirred at high speed, and 50 parts of ethyl benzoate was added dropwise during stirring to obtain ethyl benzoate. Crystalline cellulose powder adsorbed was obtained. (Production method for eraser) 150 parts of the above-mentioned crystalline cellulose powder adsorbed with ethyl benzoate was added to 353 parts of the PVC paste used in Example 2, and after stirring and mixing, the eraser was press-molded at 110°C for 20 minutes. Obtained. When images formed by electrostatic copying on tracing paper and drafting film were rubbed 10 times with the erasers of Examples 1 to 4 obtained above, the images could be easily erased and corrected. Further, no stains were observed on these repair marks. As described above, the eraser for correcting electrostatic copying images of the present invention exhibits an excellent erasing method and also produces less stains from correction marks.
Claims (1)
あるキシレン、エチルベンゼン、クロルベンゼ
ン、ｏ―ジクロルベンゼン、ｐ―クロルトルエ
ン、アセトフエノン、安息香酸エチル、２―フエ
ノキシエタノールより選ばれた一種もしくは二種
以上を消しゴム中に含有せしめた静電複写画像修
正用消しゴム。 〈条件〉 水素結合力が弱の時 溶解性パラメーター（δ）
が7.0〜11.1（cal／cm2）1/2 水素結合力が中の時 溶解性パラメーター（δ）
が7.4〜14.7（cal／cm2）1/2 ２ 前記溶剤を芯物質としたマイクロカプセルを
消しゴム中に含有せしめたことを特徴とする特許
請求の範囲第１項記載の静電複写画像修正用消し
ゴム。 ３ 前記溶剤を吸着させた多孔性粉体を消しゴム
中に含有せしめたことを特徴とする特許請求の範
囲第１項記載の静電複写画像修正用消しゴム。[Scope of Claims] 1 Xylene, ethylbenzene, chlorobenzene, o-dichlorobenzene, p-chlorotoluene, acetophenone, ethyl benzoate, 2-phenoxylene, which has the following conditions and is a solvent with a boiling point of 120°C or higher. An eraser for correcting electrostatically copied images, which contains one or more selected from ciethanol. <Conditions> When hydrogen bonding force is weak Solubility parameter (δ)
is 7.0 to 11.1 (cal/cm 2 ) When 1/2 hydrogen bond strength is medium Solubility parameter (δ)
is 7.4 to 14.7 (cal/cm 2 ) 1/2 2 The eraser contains microcapsules in which the solvent is used as a core material. eraser. 3. The eraser for electrostatic copying image correction according to claim 1, characterized in that the eraser contains porous powder to which the solvent has been adsorbed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20886283A JPS60101098A (en) | 1983-11-07 | 1983-11-07 | Eraser for correcting electrostatic copying picture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20886283A JPS60101098A (en) | 1983-11-07 | 1983-11-07 | Eraser for correcting electrostatic copying picture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60101098A JPS60101098A (en) | 1985-06-05 |
| JPH0225800B2 true JPH0225800B2 (en) | 1990-06-05 |
Family
ID=16563346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20886283A Granted JPS60101098A (en) | 1983-11-07 | 1983-11-07 | Eraser for correcting electrostatic copying picture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60101098A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2608755B2 (en) * | 1988-04-12 | 1997-05-14 | 株式会社トンボ鉛筆 | Plastic eraser composition |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54106325A (en) * | 1978-02-08 | 1979-08-21 | Pentel Kk | Rubber eraser |
| JPS54135033A (en) * | 1978-04-11 | 1979-10-19 | Pentel Kk | Eraser and making method thereof |
| JPS54156734A (en) * | 1978-05-29 | 1979-12-11 | Pentel Kk | Eraser and making method thereof |
| JPS5530982A (en) * | 1978-08-29 | 1980-03-05 | Pentel Kk | Eraser for pressureesensitive copying paper |
-
1983
- 1983-11-07 JP JP20886283A patent/JPS60101098A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54106325A (en) * | 1978-02-08 | 1979-08-21 | Pentel Kk | Rubber eraser |
| JPS54135033A (en) * | 1978-04-11 | 1979-10-19 | Pentel Kk | Eraser and making method thereof |
| JPS54156734A (en) * | 1978-05-29 | 1979-12-11 | Pentel Kk | Eraser and making method thereof |
| JPS5530982A (en) * | 1978-08-29 | 1980-03-05 | Pentel Kk | Eraser for pressureesensitive copying paper |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60101098A (en) | 1985-06-05 |
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