JPS63160900A - Eraser containing abrasive - Google Patents
Eraser containing abrasiveInfo
- Publication number
- JPS63160900A JPS63160900A JP31064186A JP31064186A JPS63160900A JP S63160900 A JPS63160900 A JP S63160900A JP 31064186 A JP31064186 A JP 31064186A JP 31064186 A JP31064186 A JP 31064186A JP S63160900 A JPS63160900 A JP S63160900A
- Authority
- JP
- Japan
- Prior art keywords
- abrasive
- eraser
- polyvinyl chloride
- film
- abrasive material
- 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
- 239000003082 abrasive agent Substances 0.000 claims description 21
- 239000004800 polyvinyl chloride Substances 0.000 claims description 20
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 13
- 229920001577 copolymer Polymers 0.000 claims description 10
- 229920001756 Polyvinyl chloride acetate Polymers 0.000 claims description 7
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 7
- 239000011118 polyvinyl acetate Substances 0.000 claims description 7
- 229920005992 thermoplastic resin Polymers 0.000 claims description 7
- 239000000463 material Substances 0.000 description 11
- 229920005989 resin Polymers 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 9
- 239000003381 stabilizer Substances 0.000 description 7
- 239000000835 fiber Substances 0.000 description 6
- 239000004014 plasticizer Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 3
- -1 Dioctyltin carboxylate Chemical class 0.000 description 3
- 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 3
- 230000000694 effects Effects 0.000 description 3
- QGEOKXWFGANCJL-UHFFFAOYSA-N ethenyl acetate;hydrochloride Chemical compound Cl.CC(=O)OC=C QGEOKXWFGANCJL-UHFFFAOYSA-N 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 229920006385 Geon Polymers 0.000 description 2
- RCJVRSBWZCNNQT-UHFFFAOYSA-N dichloridooxygen Chemical compound ClOCl RCJVRSBWZCNNQT-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical group [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は研磨材入り消しゴムに関し、特に。[Detailed description of the invention] (Industrial application field) The present invention relates to an abrasive eraser, and more particularly to an abrasive eraser.
高粘性インキ使用による印刷や油性ボールペンによる筆
跡、更には静電複写法により形成された画像等インキャ
トナーが紙の繊維に浸透していない紙の表層部分におけ
る筆跡９画像を消去するのに用いて好適な研磨材入シ消
しゴムに関するものである。Used to erase handwriting on the surface layer of paper where the ink toner has not penetrated into the paper fibers, such as printing using high viscosity ink, handwriting with an oil-based ballpoint pen, and images formed by electrostatic copying. The present invention relates to a suitable abrasive-containing eraser.
（従来の技術とその問題点）
一般に９紙の表面は紙繊維が織シ重なることによって凹
凸を有しており、高粘性インキの印刷画像や油性ボール
ペンによる筆跡そして静電複写法により形成された画像
等そのインキ−？）ナーは紙繊維の内部までは浸透せず
も、この紙表面の凹凸中に入りこんでいる為に１通常の
鉛筆用消しゴムではこれを消去できないものであった。(Prior art and its problems) Generally, the surface of 9 paper has irregularities due to overlapping paper fibers, and is formed by printing images with high viscosity ink, handwriting with oil-based ballpoint pens, and electrostatic copying. The ink for the image? ) Although the dye did not penetrate into the inside of the paper fibers, it penetrated into the irregularities on the surface of the paper, so that it could not be erased with a normal pencil eraser.
そこで従来は、これら画像や俵跡を消去するために砂消
しゴムと称される研磨材入り消しゴムでその箇所を擦過
して紙表面の繊維を剥ぐことにより消去する方法が採用
されていたが、このものは消しゴム基材がゴム材質であ
ることより経時的な基材劣化による消去性悪化の問題を
避けられず、その為近年では基材として経時劣化のない
熱可塑性樹脂のものを使用することも検討されている。Conventionally, in order to erase these images and bale marks, a method was used to remove the fibers on the paper surface by rubbing the affected areas with an abrasive eraser called a sand eraser. Since the eraser base material is made of rubber, it is unavoidable that eraseability deteriorates due to deterioration of the base material over time, and for this reason, in recent years, thermoplastic resins that do not deteriorate over time are sometimes used as the base material. It is being considered.
然るに、この熱可塑性樹脂を特徴とする特許ゴムに研磨
材を含有した場合、研磨材と基材との接着力が不十分で
あるために研磨材が消しゴム中で確実に固定されず、よ
って擦過消去時に研磨材が紙繊維に引掛かるものの繊維
を剥ぎ取らすに消しゴムから脱離してしまい、その結果
。However, when this patented rubber featuring thermoplastic resin contains an abrasive material, the abrasive material is not securely fixed in the eraser due to insufficient adhesion between the abrasive material and the base material, resulting in scratches. When erasing, the abrasive gets caught in the paper fibers, but when the fibers are peeled off, they separate from the eraser, resulting in this.
消去性能の点で満足のいくものが得られなかった。A satisfactory erasing performance could not be obtained.
（問題点を解決するための手段） 本発明者らは、この様々問題を解決すべく。(Means for solving problems) The present inventors aimed to solve these various problems.
研磨打入シ消しゴムにおけるその研磨材に着目し、これ
について種々検討を重ねたところ、消しゴム基材が熱可
塑性樹脂である場合には研磨材の表面をポリ塩化ビニル
やポリ塩化ビニルとポリ酢酸ビニルの共重合物よりなる
皮膜でもって被覆すれば、基材と研磨材との接着性が特
に良好となり、延てはその消去性能も著しく向上するこ
とを見い出し１本発明を完成したものである。Focusing on the abrasive material used in abrasive erasers, we conducted various studies and found that when the eraser base material is a thermoplastic resin, the surface of the abrasive material is made of polyvinyl chloride or polyvinyl chloride and polyvinyl acetate. The inventors have completed the present invention by discovering that if the substrate is coated with a film made of a copolymer of
即ち本発明は、熱可塑性樹脂を基材とする消ビニル及び
ｌ又はポリ塩化ビニルとポリ酢酸ビニルの共重合物より
なる皮膜を被覆した研磨材を含有せしめることを特徴と
する研磨材入り消しゴムを要旨とするものである。That is, the present invention provides an abrasive eraser containing an abrasive coated with a film made of a thermoplastic resin-based eraser and a copolymer of polyvinyl chloride and polyvinyl acetate. This is a summary.
以下９本発明を詳述する。The following nine inventions will be described in detail.
本発明において使用される研磨材は従来から使用されて
いるものが挙げられ、具体的にはガラス粉、カーボラン
ダム、珪砂等であり、その大きさとしては平均粒径が１
０〜２００μｍ のものが好ましい。研磨材の平均粒径
が１０μｍより小さいと研磨効果によって紙表面を剥ぐ
ことができず、また２００μｍより大きいと紙表面を必
要以上に傷めてしまうからである。The abrasive used in the present invention includes those that have been used conventionally, specifically glass powder, carborundum, silica sand, etc., and the average particle size is 1.
A thickness of 0 to 200 μm is preferable. If the average particle size of the abrasive is smaller than 10 μm, the paper surface cannot be removed by the abrasive effect, and if it is larger than 200 μm, the paper surface will be damaged more than necessary.
而してこれら研磨材の表面には、ポリ塩化ビニルやポリ
塩化ビニルとポリ酢酸ビニルの共重合物上シ選ばれた単
独もしくは混合物の皮膜が被覆される。この皮膜の被覆
手段について述べれば、前記ポリ塩化ビニルやポリ塩化
ビニルとポリ酢酸ビニルの共重合物を溶融して研磨材表
面に被覆する方法と、前記樹脂を溶剤に溶解させたもの
を研磨材表面に被覆し、この後溶剤を蒸発させて皮膜を
形成する方法の二種が挙げられるが、皮膜の研磨材に対
する密着性を考慮すれば溶融皮膜形成タイプの方が好ま
しい。ここで前者の方法即ち、溶融皮膜形成タイプのも
のについては、樹脂が溶融時に熱分解することを防止す
るため、更にはその溶融温度を低くするために、溶融樹
脂中に有機スズ系の安定剤やジオクチルフタレート等の
可塑剤を加える必要が有る。その貴は樹脂に対して５〜
５０重量％であり、安定剤単独でもよく可塑剤を併用し
てもよい。安定剤や可塑剤を加える方法としては。The surface of these abrasive materials is coated with a film of polyvinyl chloride or a copolymer of polyvinyl chloride and polyvinyl acetate, either singly or in combination. Regarding the means for coating this film, there are two methods: melting polyvinyl chloride or a copolymer of polyvinyl chloride and polyvinyl acetate to coat the surface of the abrasive material, and coating the surface of the abrasive material by dissolving the resin in a solvent. There are two methods of coating the surface and then evaporating the solvent to form a film, but the molten film forming type is preferable in consideration of the adhesion of the film to the abrasive material. For the former method, that is, the molten film-forming type, an organic tin stabilizer is added to the molten resin to prevent the resin from thermally decomposing during melting and to lower the melting temperature. It is necessary to add a plasticizer such as or dioctyl phthalate. The preciousness is 5~ for resin
The amount is 50% by weight, and the stabilizer may be used alone or in combination with a plasticizer. How to add stabilizers and plasticizers.
皮膜となる樹脂を６０〜１００°Ｃに加熱しておき、こ
れに安定剤や可塑剤を少量ずつ加えて樹脂に吸収させる
もので、これらが５重量％よシ少ないと樹脂は熱分解し
、また５０重量％より多いと樹脂が粉状から大きな塊状
となり、研磨材を均一に被覆する上で好ましくない。The resin that forms the film is heated to 60 to 100°C, and stabilizers and plasticizers are added little by little and absorbed into the resin. If these are less than 5% by weight, the resin will thermally decompose. If the amount is more than 50% by weight, the resin will change from powder to large lumps, which is not preferable for uniformly coating the abrasive.
従って、上述せる研磨材を含有した熱可塑性樹脂、中で
も好ましくはポリ塩化ビニル及びｌ又はポリ塩化ビニル
とポリ酢酸ビニルの共重合体を基材とする消しゴムは、
研磨材表面にポリ塩化ビニル及びｌ又はポリ塩化ビニル
とポリ酢酸ビニルの共重合物よりなる皮膜が被覆されて
いるため基材と皮膜との親和性が高まる結果研磨材の基
材に対する接着性が著しく向上し、よってこの消しゴム
を用いて筆跡１画像の擦過消去を行なった際には研磨材
が基材よシ脱離することを極力防止でき、消去効果も一
段と向上するものである。Therefore, an eraser based on a thermoplastic resin containing the above-mentioned abrasive, preferably polyvinyl chloride and l or a copolymer of polyvinyl chloride and polyvinyl acetate,
Since the surface of the abrasive material is coated with a film made of polyvinyl chloride and l or a copolymer of polyvinyl chloride and polyvinyl acetate, the affinity between the base material and the film increases, resulting in improved adhesion of the abrasive material to the base material. Therefore, when one handwritten image is rubbed and erased using this eraser, detachment of the abrasive from the base material can be prevented as much as possible, and the erasing effect is further improved.
尚１本発明において用いられる研磨材は、その表面に皮
膜を形成するにつき溶融皮膜形成タイプを採用した際、
融点が２００°Ｃ以上であることが必要である。何故な
らば、皮膜となる樹脂は約１８０°Ｃで溶融するためで
ある。このとき加える樹脂の量は研磨材に対して０．１
〜２０重量％が好ましい。即ち、２０重量％よシ多いと
研磨材が互いにくっついてしまい、またα１重量％より
少ないと均一な被覆が期待できないからである。1. When the abrasive material used in the present invention adopts a molten film forming type to form a film on its surface,
It is necessary that the melting point is 200°C or higher. This is because the resin forming the film melts at about 180°C. The amount of resin added at this time is 0.1 to the abrasive material.
~20% by weight is preferred. That is, if the amount is more than 20% by weight, the abrasives will stick together, and if it is less than 1% by weight, uniform coating cannot be expected.
本発明による研磨柱入シ消しゴムには、更に必要に応、
じて筆跡２画像を溶解し得る各種の溶剤やその他香料、
充填剤等適宜添加し得ること勿論である。The polished eraser according to the present invention further includes, if necessary,
Various solvents and other fragrances that can dissolve the handwriting 2 images,
Of course, fillers and the like may be added as appropriate.
（実施例） 以下９本発明を実施例に基き詳細に説明する。(Example) The present invention will be described in detail below based on nine examples.
実施例１
〈研磨材の製造方法〉
天然シラス（粒径１００μｍ ）５５重量部ポリ塩化ビ
ニル
（Ｇｅｏｎ ４７． 日本ゼオン■製） ４ 〃
ジオクチル錫カルボキシレート
系安定剤（ＴＮ−８８０，堺化学
工業■製） α２１
ジオクチルフタレート（可塑剤）ｔ２＃上記成分中、先
ず８０°Ｃにてポリ塩化ビニルにジオクチル錫カルボキ
シレート系安定剤及びジオクチルフタレートを吸収させ
た後、これを１゛８０°Ｃに加熱された天然シラスに攪
拌しながら添加し、自然放冷して９表面にポリ塩化ビニ
ルの溶融によシ形成された皮膜を有する研磨材Ａを得た
。Example 1 <Manufacturing method of abrasive material> Natural shirasu (particle size 100 μm) 55 parts by weight polyvinyl chloride (Geon 47. manufactured by Nippon Zeon ■) 4
Dioctyltin carboxylate stabilizer (TN-880, manufactured by Sakai Chemical Industry ■) α21 Dioctyl phthalate (plasticizer) t2# Among the above ingredients, first add the dioctyltin carboxylate stabilizer and dioctyl to polyvinyl chloride at 80°C. After absorbing the phthalate, it was added to natural shirasu heated to 1.80°C with stirring, and allowed to cool naturally to form a polished surface with a film formed by melting polyvinyl chloride. Material A was obtained.
く消しゴムの製造方法〉
ポリ塩化ビニル（Ｇｅｏｎ １２１゜日本ゼオン■製
） １５０重量部ジオクチル錫カルボキシ
レート系安定剤（ＴＮ−８８０゜
堺化学工業■製） ４ 〃
ジオクチルフタレート
（可塑剤） １０５ 〃研磨材入
６０．４Ｎこれらの成分を均一に攪拌
混合してペースト状物５１９．４重量部を得、１１０°
Ｃｌ２Ｏ分間でプレス成形を行い研磨材入り消しゴムを
得た。Method for manufacturing eraser Polyvinyl chloride (Geon 121゜manufactured by Nippon Zeon ■) 150 parts by weight Dioctyltin carboxylate stabilizer (TN-880゜Sakai Chemical Industry ■) 4 Dioctyl phthalate (plasticizer) 105 Polishing Container of lumber
60.4N These ingredients were uniformly stirred and mixed to obtain 519.4 parts by weight of a paste, and
Press molding was performed for Cl2O minutes to obtain an abrasive-containing eraser.
実施例２
〈研磨材の製造方法〉
ポリ塩化ビニル酢酸ビニル
共重合物（デンカビニール
＄１０１００Ｏ，電気化学工業■製）１重量部メチルエ
チルケトン ２５ ｌ天然シラス（粒径１０
０μｍ） １０ ＃上記成分中、先ずポリ塩
化ビニル酢酸ビニル共重合物をメチルエチルケトンに溶
解し１次いでこの溶液中に天然シラスを添加し、攪拌し
ながらメチルエチルケトンを蒸発させ９表面にポリ塩化
ビニル酢酸ビニル共重合物の皮膜を有する研磨材Ｂを得
九。Example 2 <Production method of abrasive> Polyvinyl chloride vinyl acetate copolymer (Denka Vinyl $10100O, manufactured by Denki Kagaku Kogyo ■) 1 part by weight Methyl ethyl ketone 25 l Natural shirasu (particle size 10
0 μm) 10 # Among the above ingredients, first dissolve the polyvinyl chloride vinyl acetate copolymer in methyl ethyl ketone, then add natural shirasu to this solution, evaporate the methyl ethyl ketone while stirring, and dissolve the polyvinyl chloride vinyl acetate copolymer on the surface. An abrasive material B having a polymer film was obtained.
く消しゴムの製造方法〉
上記研磨材Ｂを用いて、実施例１と同様にして研磨材入
り消しゴムを得た。Manufacturing method of eraser> Using the above-mentioned abrasive B, an abrasive-containing eraser was obtained in the same manner as in Example 1.
比較例
実施例１の消しゴムの製造方法において、研磨材Ａを単
なる天然シラス（粒径１０１００ｌ１に変え、他は実施
例１と同様にして研磨材入９消しゴムを得た。Comparative Example In the eraser production method of Example 1, the abrasive A was changed to simple natural shirasu (particle size: 10,100 l1), and the other conditions were the same as in Example 1 to obtain an abrasive-containing eraser 9.
（発明の効果）
以上実施例１．２及び比較例で得られた消しゴムを用い
て、上質紙に描かれた市販の油性ボールペンによる筆跡
を擦過消去したところ、比較例のものは筆跡をほぼ消去
できるものの研磨材が容易に基材から脱離して消しゴム
がもろくなり、一方実雄側１．２のものについては比較
例のものよりも速く消去でき、しかも研磨材の脱離も殆
どみられず良好な結果を示した。(Effect of the invention) When the erasers obtained in Example 1.2 and Comparative Example were used to rub and erase handwriting drawn with a commercially available oil-based ballpoint pen on high-quality paper, the handwriting in the comparative example was almost erased. However, the abrasive material easily detaches from the base material and the eraser becomes brittle.On the other hand, the one on the real side 1.2 can be erased faster than the comparative example, and there is almost no detachment of the abrasive material, which is good. The results showed that
この様に本発明による研磨材入り消しゴムは。As described above, the eraser containing abrasive material according to the present invention is.
熱可塑性樹脂のもつ特性の経時劣化のない点を生かし、
且つ、研磨材の基材よりの脱離を防止することにより、
一層優れた消去性能を発揮するものである。Taking advantage of the characteristic of thermoplastic resin that does not deteriorate over time,
In addition, by preventing the abrasive from detaching from the base material,
It exhibits even better erasing performance.
Claims (1)
ムに、表面にポリ塩化ビニル及び／又はポリ塩化ビニル
とポリ酢酸ビニルの共重合物よりなる皮膜を被覆した研
磨材を含有せしめることを特徴とする研磨材入り消しゴ
ム。An eraser based on a thermoplastic resin, characterized in that the eraser contains an abrasive material whose surface is coated with a film made of polyvinyl chloride and/or a copolymer of polyvinyl chloride and polyvinyl acetate. Eraser with abrasive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31064186A JPS63160900A (en) | 1986-12-25 | 1986-12-25 | Eraser containing abrasive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31064186A JPS63160900A (en) | 1986-12-25 | 1986-12-25 | Eraser containing abrasive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63160900A true JPS63160900A (en) | 1988-07-04 |
Family
ID=18007694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31064186A Pending JPS63160900A (en) | 1986-12-25 | 1986-12-25 | Eraser containing abrasive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63160900A (en) |
-
1986
- 1986-12-25 JP JP31064186A patent/JPS63160900A/en active Pending
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