JPH0220399A - Plastic character eraser - Google Patents
Plastic character eraserInfo
- Publication number
- JPH0220399A JPH0220399A JP63170194A JP17019488A JPH0220399A JP H0220399 A JPH0220399 A JP H0220399A JP 63170194 A JP63170194 A JP 63170194A JP 17019488 A JP17019488 A JP 17019488A JP H0220399 A JPH0220399 A JP H0220399A
- Authority
- JP
- Japan
- Prior art keywords
- plastic
- eraser
- inorganic filler
- vinyl chloride
- chloride resin
- 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
- 229920003023 plastic Polymers 0.000 title claims abstract description 20
- 239000004033 plastic Substances 0.000 title claims abstract description 20
- 239000011256 inorganic filler Substances 0.000 claims abstract description 12
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 12
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000011347 resin Substances 0.000 claims abstract description 11
- 229920005989 resin Polymers 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000004014 plasticizer Substances 0.000 claims abstract description 6
- 239000003381 stabilizer Substances 0.000 claims abstract description 6
- 229910010272 inorganic material Inorganic materials 0.000 claims description 4
- 239000011147 inorganic material Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract description 2
- 238000005266 casting Methods 0.000 abstract 1
- 230000016615 flocculation Effects 0.000 abstract 1
- 238000005189 flocculation Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000088 plastic resin Substances 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 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 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 229920006385 Geon Polymers 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000463 material Substances 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 1
- 241001435619 Lile Species 0.000 description 1
- 229920001944 Plastisol Polymers 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- ZFMQKOWCDKKBIF-UHFFFAOYSA-N bis(3,5-difluorophenyl)phosphane Chemical compound FC1=CC(F)=CC(PC=2C=C(F)C=C(F)C=2)=C1 ZFMQKOWCDKKBIF-UHFFFAOYSA-N 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000004999 plastisol Substances 0.000 description 1
- 210000001685 thyroid gland Anatomy 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、塩化ビニル樹脂、可塑剤、安定剤。[Detailed description of the invention] (Industrial application field) The present invention relates to vinyl chloride resin, plasticizer, and stabilizer.
無機質充填材とからなり、該無機質充填材の２０〜５５
％多孔性無機物を含有せしめることにより、特に高硬度
にして剛性に富み、黒芯特に濃度的に薄い黒芯及び色鉛
筆芯筆跡の消去性にすぐれたプラスチック字消組成物に
関する。20 to 55 of the inorganic filler.
The present invention relates to a plastic eraser composition which has particularly high hardness and rigidity by containing a porous inorganic substance, and has excellent erasability of black lead, particularly thin black lead and colored pencil lead handwriting.
（従来の技術）
従来より、プラスチック字消としてはプラスチック基材
に塩化ビニル樹脂を使用したものが性能的にすぐれＪＩ
Ｓ規格によれば硬度５０以上と規定され、消去の対象と
して主に黒芯のＨＢ筆跡に着眼したものであった。(Conventional technology) Conventionally, plastic erasers that use vinyl chloride resin as the plastic base material have excellent performance, and JI
According to the S standard, the hardness is stipulated to be 50 or higher, and the focus was mainly on HB handwriting with a black core as the target for erasing.
（発明が解決しようとする課題）
このようにしてえられた従来のプラスチック字消では、
濃度的に薄い黒芯の筆跡は筆圧が高い状態でかかれるの
で紙面へのカーボン粉の付着が強固で、これを消去する
には強く摩消し消し屑がカーボン粉に都合よく接触する
ことが必須であるが、強く摩消するには過度に柔軟であ
り、紙面に強固に深く付着したカーボン粉と消し屑が接
触するには消し屑が大きすぎる。また色鉛筆芯の筆跡消
去に到っては、字消が柔軟で消し屑に粘着性があるため
に摩消により紙面着色部を広くのばしているだけで十分
な消去は不可能であった。(Problem to be solved by the invention) In the conventional plastic eraser obtained in this way,
Handwriting with a thin black core is written with high pen pressure, so the carbon powder adheres strongly to the paper surface, and in order to erase this, it is essential that the eraser rubs off strongly and makes convenient contact with the carbon powder. However, it is too soft to be strongly abraded, and the eraser dust is too large for it to come into contact with the carbon powder firmly and deeply adhered to the paper surface. Furthermore, when it comes to erasing handwriting from colored pencil lead, the eraser is flexible and the eraser dust is sticky, so it is impossible to erase the handwriting sufficiently by simply stretching out the colored area on the paper by rubbing.
（課題を解決する為の手段）
プラスチック基材に塩化ビニル樹脂を使用したプラスチ
ック字消の濃度的に薄い黒芯及び色鉛筆芯筆跡の消去性
を改良するため、構造上分子が凝集せず微孔と間隙を多
く有する多孔性無機物をプラスチック字消組成物無機質
充填材の一部に置換し用いた。この多孔性無機物の添加
量は無機質充填材の２０〜５５％とし、２０％未満では
硬度不足で品質的に従来のプラスチック字消に類似し、
５５％を越えると硬度が大となる反面プラスチック字消
における塩化ビニル樹脂の特性がそこなわれ摩消による
消し屑の発生が必要以上に多大になるという欠点が表面
化し又製造工程面でプラスチゾル高粘度による金型への
流し込みの問題が生ずる。本発明プラスチック字消の特
徴を十分に発揮するには、理想としてその添加量を４０
〜５０％とするのが適切である。(Means for solving the problem) In order to improve the erasability of thin black lead and colored pencil lead handwriting of plastic erasers that use vinyl chloride resin as the plastic base material, molecules do not aggregate due to their structure and have fine pores. A porous inorganic material having a large number of voids was used to replace a part of the inorganic filler in a plastic eraser composition. The amount of this porous inorganic added should be 20 to 55% of the inorganic filler; if it is less than 20%, the hardness will be insufficient and the quality will be similar to conventional plastic erasers.
If it exceeds 55%, the hardness increases, but on the other hand, the characteristics of the vinyl chloride resin in plastic erasers are impaired, and the drawback that the generation of eraser debris due to abrasion becomes more than necessary becomes apparent. Problems arise with pouring into the mold due to viscosity. In order to fully exhibit the characteristics of the plastic eraser of the present invention, the amount added should ideally be 40
It is appropriate to set it to 50%.
（実施例） 以下実施例に基づき本発明を更に詳細に説明する。(Example) The present invention will be explained in more detail below based on Examples.
実施例１
塩化ビニル樹脂
（Ｇｅｏｎ １２１ ：日本ゼオン社）可塑剤
（フタル酸ジオクチル： ＤＯＰ）
１００重量部
１２０重景部
２０重量部
（アジピン酸ジオクチル： ＤＯＡ）
安定剤
（ステアリン酸カルシウム）
２重量部
１重量部
（ステアリン酸亜鉛）
無機物充填材 ３５重量部（ホワ
イトンＢ：白石カルシウム社）
多孔性無機物 ２５重量部（Ｇｅ
ｌｉｌｅ ２８１： ジョンス・マンヴイル社）実
施例２
塩化ビニル樹脂
（Ｇｅｏｎ １２１ ：日本ゼオン社）１００重量部
可 塑 剤（ＤＯＰ） １３０重量部（
ＤＯＡ） ２０重量部安 定 剤
４重量部（ＭへＲＫ ５Ｃ−
３２：アテカ７−ガス社）無機物充填材
４０重量部（ホワイトンＢ：白石カルシウム社
）
多孔性無機物 ４０重量部（サイ
ロイド２４４：富士ティヴイソン社）上記各配合組成に
基づき均一のプラスチゾルを作成し、脱泡後一定形状の
金型に流し込み同一加熱ゲル化処理をほどこしプラスチ
ック字消を得ることができた。Example 1 Vinyl chloride resin (Geon 121: Nippon Zeon Co., Ltd.) Plasticizer (dioctyl phthalate: DOP) 100 parts by weight 120 parts by weight 20 parts by weight (dioctyl adipate: DOA) Stabilizer (calcium stearate) 2 parts by weight 1 Parts by weight (zinc stearate) Inorganic filler 35 parts by weight (Whiten B: Shiraishi Calcium Co., Ltd.) Porous inorganic material 25 parts by weight (Ge
lile 281: Johns Manville Co., Ltd.) Example 2 Vinyl chloride resin (Geon 121: Nippon Zeon Co., Ltd.) 100 parts by weight Plasticizer (DOP) 130 parts by weight (
DOA) 20 parts by weight stabilizer
4 parts by weight (RK 5C- to M
32: Ateca 7-Gas) Inorganic filler
40 parts by weight (Whiten B: Shiraishi Calcium Co., Ltd.) 40 parts by weight of porous inorganic material (Thyroid 244: Fuji Tivyson Co., Ltd.) A uniform plastisol was created based on each of the above formulations, and after defoaming, it was poured into a mold of a certain shape and made into the same mold. By applying heat gelling treatment, we were able to obtain plastic erasers.
次に硬度、消去性、消し屑の発生状態、字消の摩耗状態
等について表−１に示す。Next, Table 1 shows the hardness, erasability, generation of erasing debris, wear state of erasers, etc.
比較例
塩化ビニル樹脂 １００重量部（Ｇ
ｅｏｎ １２１ ：日本ゼオン社）可 塑 剤（ＤＯＰ
） １４０重量部（ＤＯＡ）
３０重量部安 定 剤
３重量部（ＴＭＦ−１０３：東京ファインケミカル
社）無機物充填材 ４０重量部（
ホワイトンＢ：白石カルシウム社）
１０重量部
（八ｅｒｏｓｉｌ”１３０：日本アエロシ１岬社）（発
明の効果）
本発明によってえられるプラスチック字消は、硬度に富
み、消し屑の発生状態、字消の摩耗状態等で独得の性能
を有し、従って、濃度的に薄い黒芯及び色鉛筆の筆跡の
消字材としてかなり有効である。Comparative Example Vinyl chloride resin 100 parts by weight (G
eon 121: Nippon Zeon Co., Ltd.) Plasticizer (DOP)
) 140 parts by weight (DOA)
30 parts by weight stabilizer
3 parts by weight (TMF-103: Tokyo Fine Chemical Co., Ltd.) Inorganic filler 40 parts by weight (
Whiten B: Shiraishi Calcium Co., Ltd.) 10 parts by weight (Erosil" 130: Nippon Aerosi 1 Misaki Co., Ltd.) (Effects of the Invention) The plastic eraser obtained by the present invention has high hardness, It has unique performance in the wear state of pencils, and is therefore quite effective as an eraser for thin black lead and handwriting of colored pencils.
Claims (1)
充填材とからなり、該無機質充填材の２０〜５５％多孔
性無機物を含有することを特徴とするプラスチック字消
。A plastic eraser characterized in that its composition consists of a vinyl chloride resin, a plasticizer, a stabilizer, and an inorganic filler, and the inorganic filler contains 20 to 55% of porous inorganic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63170194A JPH0220399A (en) | 1988-07-08 | 1988-07-08 | Plastic character eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63170194A JPH0220399A (en) | 1988-07-08 | 1988-07-08 | Plastic character eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0220399A true JPH0220399A (en) | 1990-01-23 |
Family
ID=15900418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63170194A Pending JPH0220399A (en) | 1988-07-08 | 1988-07-08 | Plastic character eraser |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0220399A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014111320A (en) * | 2012-12-05 | 2014-06-19 | Mitsubishi Pencil Co Ltd | Eraser |
| JP2014177053A (en) * | 2013-03-15 | 2014-09-25 | Mitsubishi Pencil Co Ltd | Eraser |
| US11207913B2 (en) | 2012-12-05 | 2021-12-28 | Mitsubishi Pencil Company, Limited | Erasing member and erasing tool using the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59194829U (en) * | 1983-06-13 | 1984-12-25 | シヨウワノ−ト株式会社 | pencil case |
-
1988
- 1988-07-08 JP JP63170194A patent/JPH0220399A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59194829U (en) * | 1983-06-13 | 1984-12-25 | シヨウワノ−ト株式会社 | pencil case |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014111320A (en) * | 2012-12-05 | 2014-06-19 | Mitsubishi Pencil Co Ltd | Eraser |
| US11207913B2 (en) | 2012-12-05 | 2021-12-28 | Mitsubishi Pencil Company, Limited | Erasing member and erasing tool using the same |
| JP2014177053A (en) * | 2013-03-15 | 2014-09-25 | Mitsubishi Pencil Co Ltd | Eraser |
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