JPS6357299A - Eraser for white board - Google Patents
Eraser for white boardInfo
- Publication number
- JPS6357299A JPS6357299A JP61202882A JP20288286A JPS6357299A JP S6357299 A JPS6357299 A JP S6357299A JP 61202882 A JP61202882 A JP 61202882A JP 20288286 A JP20288286 A JP 20288286A JP S6357299 A JPS6357299 A JP S6357299A
- Authority
- JP
- Japan
- Prior art keywords
- eraser
- whiteboard
- static electricity
- white board
- fiber
- 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
- 239000000835 fiber Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000007790 scraping Methods 0.000 claims 1
- 230000001568 sexual effect Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 8
- 230000003068 static effect Effects 0.000 description 8
- 239000004744 fabric Substances 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 239000004745 nonwoven fabric Substances 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- AQMRBJNRFUQADD-UHFFFAOYSA-N copper(I) sulfide Chemical compound [S-2].[Cu+].[Cu+] AQMRBJNRFUQADD-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 239000005749 Copper compound Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229910000870 Weathering steel Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001880 copper compounds Chemical class 0.000 description 1
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical compound [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000009958 sewing Methods 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
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Nonwoven Fabrics (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) [Abstract] 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」
この発明は、水性インクにより文字等を消去自在に表示
することのできるホワイトボードに用いて好適なイレー
ザ−に関するものである。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to an eraser suitable for use in whiteboards that can display characters and the like in an erasable manner using water-based ink.
「従来の技術および問題点」
従来のホワイトボード用イレーザ−は、周知の黒板消し
と同様に綿やスポンジをコールテン地の布でくるんだも
の、単に不織布を積層したもの、などのように通常の布
類を成形したものであった。"Prior Art and Problems" Conventional whiteboard erasers are made of ordinary whiteboard erasers, such as cotton or sponge wrapped in cor-ten cloth like the well-known blackboard eraser, or simply laminated non-woven fabrics. It was made from cloth.
ところで、上記従来のイレーザ−においては、経時的に
消去能力が急激に落ちるという問題点が、また、イレー
ザ−が新しくてもホワイトボード上の文字等を長時間放
置しておいた場合は消し残りが発生しやすいという問題
点がある。By the way, the problem with the conventional eraser mentioned above is that the erasing ability deteriorates rapidly over time.Also, even if the eraser is new, if characters, etc. on the whiteboard are left for a long time, they may remain unerased. There is a problem in that it is easy to occur.
「問題点を解決するための手段」
本発明者は、上記従来の問題点を解決するために鋭意研
究を重ねたところ、次のような知見を得るに至った。"Means for Solving the Problems" The present inventor has conducted extensive research to solve the above-mentioned conventional problems, and has come to the following knowledge.
従来のイレーザ−の消去能力が急激に低下するのは、ホ
ワイトボード表面からこすり取ったインクの粉が布表面
の繊維間に侵入し、ついにはイレーザ−の表面を覆って
しまうからであり、このイレーザ−表面へのインク粉末
の付着の原因は、主にホワイトボードとイレイザー間で
発生する静電気である。この静電気発生を塩化ビニル系
樹脂シートから構成されているホワイトボード表面につ
いて見てみると、たとえば、20℃で、湿度40%の条
件下では3800〜4500Vとなることから分かるよ
うに、大変高い静電気が発生している。従って、長時間
放置しておいたホワイトボード上の文字等は、完全に乾
燥しているので、その拭き取り時にホワイトボード上に
高い静電気が発生し、インク粉末を吸い着けて離さず、
これが消し残りの原因となる。これに対して、布を湿ら
せて拭きとる手段も考えられるが、湿らせた布を使うと
インクが薄められた状態でホワイトボードの全面に広が
って、却ってホワイトボード表面を汚してしまう。The erasing ability of conventional erasers decreases rapidly because the ink powder scraped from the whiteboard surface enters between the fibers on the cloth surface and eventually covers the eraser surface. The main cause of ink powder adhesion to the eraser surface is static electricity generated between the whiteboard and the eraser. When we look at the generation of static electricity on the surface of a whiteboard made of vinyl chloride resin sheets, we find that, for example, at 20°C and 40% humidity, the static electricity is 3800 to 4500V, which is very high. is occurring. Therefore, the letters on a whiteboard that have been left for a long time are completely dry, so when you wipe them off, a high amount of static electricity is generated on the whiteboard, which attracts the ink powder and prevents it from being removed.
This causes unerased parts. A possible solution to this problem is to dampen the cloth and wipe it off, but if you use a damp cloth, the ink will be diluted and spread over the entire surface of the whiteboard, instead staining the surface of the whiteboard.
この発明は、上記知見に基づいてなされたもので、導電
性繊維が混合された繊維集合体からイレーザ−を構成す
ることによって、拭き取り時にホワイトボード上および
イレーザ−に静電気が発生するのを防止し、ホワイトボ
ード上にインク粉末が残らないようにするとともに、イ
レーザ−がインク粉末により目詰まりしないようにした
ものである。上記繊維集合体としては、織物、編物、不
織布等が考えられる。This invention was made based on the above knowledge, and by forming the eraser from a fiber aggregate mixed with conductive fibers, it is possible to prevent static electricity from being generated on the whiteboard and on the eraser during wiping. This prevents ink powder from remaining on the whiteboard and prevents the eraser from clogging with ink powder. As the fiber aggregate, woven fabrics, knitted fabrics, nonwoven fabrics, etc. can be considered.
本発明のイレーザ−において実用的な効果を発揮させる
ためには、イレーザ−の露出面における導電性繊維の割
合が0.5〜20wt%であることが必要であり、好ま
しくは1〜10wt%である。かかる混合割合によって
イレーザ−の表面固有抵抗値は104〜10@Ω/口お
よびその近辺の値をとり、ホワイトボード表面を摩擦し
た場合、ホワイトボード上の摩擦帯電圧は200v以下
となり、充分な静電気除去能を得ることができる。この
導電性繊維は、例えば、合成樹脂製または天然の繊維に
硫化第1銅、硫化第2銅などの銅化合物を含浸させてな
るものや、金属メッキを施したものが使用され、長さ7
〜60++u+で、アスペクト比が300以上であるこ
とが静電気防止または除去機能の確保および繊維集合体
形成時の分散性を維持する上で好ましい。In order for the eraser of the present invention to exhibit practical effects, the proportion of conductive fibers on the exposed surface of the eraser must be 0.5 to 20 wt%, preferably 1 to 10 wt%. be. Depending on this mixing ratio, the surface resistivity value of the eraser takes on a value of 104 to 10@Ω/ohm or around it, and when the surface of the whiteboard is rubbed, the frictional voltage on the whiteboard will be 200V or less, and there will be sufficient static electricity. removal ability can be obtained. This conductive fiber is, for example, made of synthetic resin or natural fiber impregnated with a copper compound such as cuprous sulfide or cupric sulfide, or plated with metal, and has a length of 7
~60++u+, and the aspect ratio is preferably 300 or more in order to ensure static electricity prevention or removal function and maintain dispersibility during fiber aggregate formation.
以下、この発明の実施例を示す。Examples of this invention will be shown below.
「実施例1 」
硫化第1銅を含有させた直径8μm1長さ51m+のア
クリル系繊維;3wt%、直径14μ肩、長さ51mm
のレイヨン繊維;80wt%、バインダー繊維(ポリエ
ステル系熱融着性繊維);17wt%を混合して、目付
7O−3=
9/ m”となるようにランダムウェブの乾式不織布を
形成し、これを周知の黒板消し状に縫製、成形してホワ
イトボード用イレーザ−を得た。"Example 1" Acrylic fiber containing cuprous sulfide and having a diameter of 8 μm and a length of 51 m+; 3 wt%, diameter of 14 μm shoulder, length of 51 mm
Rayon fiber; 80 wt% and binder fiber (polyester heat-fusible fiber); 17 wt% were mixed to form a random web dry nonwoven fabric with a basis weight of 7O-3 = 9/m. A whiteboard eraser was obtained by sewing and molding it into the shape of a well-known blackboard eraser.
得られたイレーザ−の20℃、40%RHの条件下にお
ける表面固有抵抗値は5゜5X 105Ω/口であり、
このイレーザ−によってホワイトボード表面を200C
,40%R1(の条件下で摩擦した時のホワイトボード
表面の帯電圧測定したところ、140vであった。The surface specific resistance value of the obtained eraser under the conditions of 20 ° C. and 40% RH was 5 ° 5 × 10 5 Ω / mouth,
This eraser erases the whiteboard surface at 200C.
, 40%R1 (when the charged voltage on the surface of the whiteboard was measured when rubbed under the conditions of 140 V.
また、このイレーザ−を用いて前日にホワイトボード上
の全面に書いておいた文章を拭き取ったところ、消し残
しなく、きれいに消すことができた。Also, when I used this eraser to wipe off the text I had written all over the whiteboard the previous day, I was able to erase it cleanly without leaving anything behind.
「実施例2 」
無電解ニッケルメッキを施したアクリル紡績糸2/48
S;1重量部に対し、綿糸4OS/2.9重量部の比率
で目付1309/12となるように編成した天笠編物に
よりイレーザ−を構成した。"Example 2" Acrylic spun yarn with electroless nickel plating 2/48
S: The eraser was composed of a tenagasa knitted fabric knitted at a ratio of 4OS/2.9 parts by weight of cotton yarn to 1 part by weight to give a basis weight of 1309/12.
得られたイレーザ−の20°C140%RHの条件下に
おける表面固有抵抗値は8.OX 107Ω/口であり
、このイレーザ−によってホワイトボード表面を200
C,40%R1(の条件下で摩擦した時のホワイトボー
ド表面の帯電圧測定したところ、250vであった。The surface resistivity value of the obtained eraser under the conditions of 20°C and 140%RH was 8. OX 107Ω/mouth, and this eraser can erase the whiteboard surface by 200Ω.
The electrostatic voltage on the surface of the whiteboard when rubbed under the conditions of C, 40% R1 was measured and found to be 250V.
また、このイレーザ−を用いて前日にホワイトボード上
の全面に書いておいた文章を拭き取ったところ、消し残
しなく、きれいに消すことができた。Also, when I used this eraser to wipe off the text I had written all over the whiteboard the previous day, I was able to erase it cleanly without leaving anything behind.
「発明の効果」
以上説明したように、この発明のホワイトボード用イレ
ーザ−によれば、拭き取り時にホワイトボード上および
イレーザ−に静電気が発生するのを防止でき、ホワイト
ボード上にインク粉末が残らないようにするとともに、
イレーザ−がインク粉末により目詰まりしないようにす
ることができ、長時間径た後のホワイトボード上のイン
クも容易、確実に消し取ることができる。"Effects of the Invention" As explained above, the whiteboard eraser of the present invention can prevent static electricity from being generated on the whiteboard and the eraser during wiping, and no ink powder will remain on the whiteboard. In addition to doing so,
The eraser can be prevented from being clogged with ink powder, and ink on the whiteboard after a long period of time can be easily and reliably erased.
Claims (1)
上に水性インクで書かれた文字等をこすり落とすホワイ
トボード用イレーザーであって、導電性繊維が混合され
た繊維集合体から構成され、露出面における前記導電性
繊維の割合が0.5〜20wt%であることを特徴とす
るホワイトボード用イレーザー。This is a whiteboard eraser for scraping characters written with water-based ink on a whiteboard whose surface is covered with plastic. An eraser for whiteboards, characterized in that the proportion of sexual fibers is 0.5 to 20 wt%.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61202882A JPS6357299A (en) | 1986-08-29 | 1986-08-29 | Eraser for white board |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61202882A JPS6357299A (en) | 1986-08-29 | 1986-08-29 | Eraser for white board |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6357299A true JPS6357299A (en) | 1988-03-11 |
Family
ID=16464764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP61202882A Pending JPS6357299A (en) | 1986-08-29 | 1986-08-29 | Eraser for white board |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6357299A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5836038A (en) * | 1996-11-07 | 1998-11-17 | Thorp; Kelly R. | Magnetic mount dry eraser |
US9809442B2 (en) | 2008-11-14 | 2017-11-07 | Veltek Associates, Inc. | Apparatus and method for mixing and dispensing |
-
1986
- 1986-08-29 JP JP61202882A patent/JPS6357299A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5836038A (en) * | 1996-11-07 | 1998-11-17 | Thorp; Kelly R. | Magnetic mount dry eraser |
US9809442B2 (en) | 2008-11-14 | 2017-11-07 | Veltek Associates, Inc. | Apparatus and method for mixing and dispensing |
US10399846B2 (en) | 2008-11-14 | 2019-09-03 | Veltek Associates, Inc. | Apparatus and method for mixing and dispensing |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS6357299A (en) | Eraser for white board | |
CN206664072U (en) | A kind of water writing cloth spool | |
JPH10212456A (en) | Coating composition for fiber material and functional fiber material | |
JPH0593896U (en) | Eraser for whiteboard | |
DE1185631B (en) | Cleaning sheet for types of typewriters u. like | |
JPH0716478Y2 (en) | Hair transplant eraser | |
CN208730664U (en) | Clean blackboard eraser | |
JP2001181962A (en) | Nonwoven fabric for polishing glass | |
DE3326597A1 (en) | PROTECTIVE COVER FOR AN INFORMATION CARRIER | |
CN201872490U (en) | Dustproof blackboard eraser | |
CN208593147U (en) | A kind of novel high-performance has the looped fabric of cleaning function | |
JP3112185B2 (en) | Nonwoven fabric for wiper and wiper for whiteboard using the same | |
CN213612816U (en) | Storage box for scrubbing rubber | |
JP2003011586A (en) | Erasing sheet for writing board eraser and writing board eraser | |
JP2013169695A (en) | Erasing tool for writing board | |
JPS59159128A (en) | Production of liquid crystal display device | |
CN213261452U (en) | Flocking spraying cloth with antistatic function | |
JPS6385112A (en) | Electrically conductive conjugate fiber | |
JPS63102998A (en) | Point of writing brush | |
JPH0651389B2 (en) | Matte film | |
JPH086051Y2 (en) | Antistatic sewing thread | |
JPS61163979A (en) | Erasable water ink for cloth | |
JP3078076U (en) | Composite mineral coating sheet | |
CN2360278Y (en) | Gloves type eraser | |
JPH064805B2 (en) | Ink composition for board marker |