JPH03277594A - Preparation of marking chalk - Google Patents
Preparation of marking chalkInfo
- Publication number
- JPH03277594A JPH03277594A JP7978890A JP7978890A JPH03277594A JP H03277594 A JPH03277594 A JP H03277594A JP 7978890 A JP7978890 A JP 7978890A JP 7978890 A JP7978890 A JP 7978890A JP H03277594 A JPH03277594 A JP H03277594A
- Authority
- JP
- Japan
- Prior art keywords
- mixed
- chalk
- marking
- marking chalk
- glass particles
- 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
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 10
- 239000011521 glass Substances 0.000 claims abstract description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims abstract description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 5
- 239000003208 petroleum Substances 0.000 claims abstract description 5
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000012188 paraffin wax Substances 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 9
- 238000002156 mixing Methods 0.000 abstract description 6
- 238000000465 moulding Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000003756 stirring Methods 0.000 abstract description 4
- 235000010215 titanium dioxide Nutrition 0.000 abstract description 2
- 239000010419 fine particle Substances 0.000 description 4
- 206010039203 Road traffic accident Diseases 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 241000726103 Atta Species 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011507 gypsum plaster Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
Landscapes
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、光の反射光線により事故路面に描いたチョー
クの痕跡を夜間撮影用に用いるマーキングチョークの製
造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for manufacturing marking chalk, which is used for night photography of chalk traces drawn on an accident road surface using reflected light.
従来のマーキングチ舊−りはパラフィンワックス、石油
系オイル、酸化チタン、炭酸カルシウム等の混合資料を
加熱し、溶解後冷却して所定の成型器で成形したチョー
クを用いて事故現場の状態を路面に描いている。Conventional marking techniques involve heating a mixture of paraffin wax, petroleum oil, titanium oxide, calcium carbonate, etc., melting it, cooling it, and using chalk that is molded in a designated molding machine to record the condition of the accident site on the road surface. is drawn on.
また、教材に使用するチ璽−りは焼石膏の粉末を棒状に
固めたもので、もっばら黒板に字を書くために用いられ
ている。Additionally, the chisel used in teaching materials is made of powdered plaster of paris hardened into a stick shape, and is mostly used for writing on blackboards.
従来のマーキングチョークの交通事故現場等における路
面表示用に使用した場合の反射効率は、５＃１未満の近
距離の撮影の場合には特に支障はないが、それ以上の距
離になると、反射効率が悪いので路面に表示した線や記
号が実況見分等の写真に写り難いほか、目視状況におい
ても確実に見にくい等の問題点があった。The reflection efficiency of conventional marking chalk when used for marking road surfaces at traffic accident sites, etc. is not particularly problematic when shooting at close distances of less than 5#1, but at longer distances, the reflection efficiency decreases. Because of the poor quality, lines and symbols displayed on the road surface were difficult to see in photos taken during live inspections, and they were also difficult to see visually.
また黒板用のチョークは黒板に文字図形等を描くための
石膏より成るもので、警察等の事故現場の路面に表示す
るのには不適切である。Furthermore, chalk for blackboards is made of plaster for drawing letters and figures on blackboards, and is not suitable for displaying on roads at accident scenes by police or the like.
そこで、本発明は、従来公知公用のマーキングチョーク
等の資料内に球状硝子微粒子を混合して、反射効率を高
め、路面に表示した線や記号が鮮明に反射して不便を解
消することが容易であり、特に夜間における事故現場撮
影について機能を発揮するマーキングチョークの製造方
法を提供することを目的としている。Therefore, the present invention improves the reflection efficiency by mixing spherical glass fine particles into materials such as marking chalk, which are conventionally known and for public use, so that lines and symbols displayed on the road surface are clearly reflected, making it easy to eliminate the inconvenience. The purpose of the present invention is to provide a method for manufacturing marking chalk that is particularly effective for photographing accident scenes at night.
〔課題を解決するための手段）
上記目的を達成するために、本発明のマーキングチョー
クの製造方法は、従来周知の手段としてパラフィンワッ
クス、石油系オイル、酸化チタン、炭酸カルシウム等の
混合資料を攪拌混合して加熱溶解した後に球状硝子微粒
子を添加攪拌し、前記混合資料内に該硝子微粒子を均等
に混在させてこの練成物を任意形状の成型器に注入して
冷却固形化させた製造方法である。[Means for Solving the Problems] In order to achieve the above object, the method for producing marking chalk of the present invention involves stirring a mixed material of paraffin wax, petroleum oil, titanium oxide, calcium carbonate, etc. as a conventionally well-known means. A manufacturing method in which after mixing and heating and melting, spherical glass fine particles are added and stirred, the glass fine particles are evenly mixed in the mixed material, and this kneaded product is poured into a molding machine of any shape and cooled and solidified. It is.
上記のように構成されたマーキングチョークを使用して
現在使用している交通事故現場等における路面表示用と
してその反射効率について、各種発光資料を添加して得
たる試作品について実験の結果法の通りであった。Using the above-mentioned marking chalk, we conducted experiments on prototype products obtained by adding various luminescent materials to determine the reflection efficiency of the marking chalk currently in use for marking road surfaces at traffic accident sites, etc. Met.
試
験
ア
タ
×゛写真写り及び強度の面で支障のあるもの上述のよう
に従来のマーキングチョークに対して夜間撮影する場合
は試験データーでは５ｍの範囲の距離で視認性が認めら
れるけれども、現在警察署の交通課事故処理係において
はＣ硼における「マーキングチョーク」１．「ガラス粒
子Ｊ２７）混合割合によるものがもっとも好ましい。Test Atta ×゛Problems in terms of photo visibility and strength As mentioned above, when photographing at night with conventional marking chalk, the test data shows that it is visible at a distance of 5 meters, but currently police stations At the Traffic Division Accident Handling Section, "Marking Chalk" 1. "Glass particles J27) The one based on the mixing ratio is most preferable.
実施例
本発明の詳細な説明すると、先づ第１工程としてパラフ
ィン−２ツクス約６０％、石油系オイル（硬化油）約３
％、酸化チタン（チタン白）約７％、炭酸カルシュラム
約３０％を原材料として混合して約１００’前後にて加
熱溶解して攪拌により均一に混合する。EXAMPLE To explain the present invention in detail, first, in the first step, about 60% of paraffin-2x and about 3% of petroleum oil (hardened oil) are used.
%, about 7% of titanium oxide (titanium white), and about 30% of calcium carbonate are mixed as raw materials, melted by heating at about 100', and mixed uniformly by stirring.
仁の場合のマーキングチョークの混合資料を１とした場
合に球状硝子微粒子２の割合を以って、原材料の溶解中
に添加し、攪拌混合し加工容易なる程度の温度時に成型
器内に入れて約３０分〜ω分程度冷却（常温）して固形
化させるものである。When the mixing material of marking chalk is 1 part, 2 parts of the spherical glass particles are added to the raw materials during melting, stirred and mixed, and placed in a molding machine at a temperature that is easy to process. It is solidified by cooling (at room temperature) for about 30 minutes to ω minutes.
また、従来のマーキングチョークの資料にガラス粒子を
混入したものは長さは２３５−ｆとし、直径４０ｍのも
のを製作したものが好ましいが必ずしも長さ径には制限
されない。In addition, it is preferable that the conventional marking chalk materials mixed with glass particles have a length of 235-f and a diameter of 40 m, but the length and diameter are not necessarily limited.
本発明は以上のように形成されているので以下記載され
るような効果を奏する。Since the present invention is constructed as described above, it produces the effects described below.
マーキングチョークに球状硝子微粒子を混合して形成さ
れたチッークの反射効率を高め路面表示した線や記号を
鮮明に反射することにより特に夜間の目視効果が良好で
、実況見分の写真写りも良好であって、現場の実際を的
確に把握することのできる特異性がある。The marking chalk is made by mixing spherical glass fine particles to increase the reflection efficiency of the marking chalk, which clearly reflects the lines and symbols displayed on the road surface, making it particularly effective for night visibility, and also looks good in photos for viewing live conditions. Therefore, it has the uniqueness of being able to accurately grasp the actual situation on the ground.
Claims (1)
酸カルシウム等の混合資料を加熱し溶解して製造してい
るマーキングチョークにおいて、球状硝子微粒子を添加
し、攪拌混合冷却させて任意形状に固形することを特徴
とするマーキングチョークの製造方法Marking chalk is manufactured by heating and melting a mixture of paraffin wax, petroleum oil, titanium oxide, calcium carbonate, etc., and is characterized by the addition of spherical glass particles, which are then stirred, mixed, and cooled to solidify into any shape. Method for manufacturing marking chalk
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2079788A JPH0826268B2 (en) | 1990-03-27 | 1990-03-27 | Manufacturing method of marking chalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2079788A JPH0826268B2 (en) | 1990-03-27 | 1990-03-27 | Manufacturing method of marking chalk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03277594A true JPH03277594A (en) | 1991-12-09 |
| JPH0826268B2 JPH0826268B2 (en) | 1996-03-13 |
Family
ID=13699955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2079788A Expired - Lifetime JPH0826268B2 (en) | 1990-03-27 | 1990-03-27 | Manufacturing method of marking chalk |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0826268B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014024877A (en) * | 2012-07-24 | 2014-02-06 | Komatsu Process:Kk | Method for producing retroreflective solid marking material, retroreflective solid marking material and writing utensil |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58134166A (en) * | 1982-02-03 | 1983-08-10 | Takashi Sekiya | Brilliant recording material |
-
1990
- 1990-03-27 JP JP2079788A patent/JPH0826268B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58134166A (en) * | 1982-02-03 | 1983-08-10 | Takashi Sekiya | Brilliant recording material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014024877A (en) * | 2012-07-24 | 2014-02-06 | Komatsu Process:Kk | Method for producing retroreflective solid marking material, retroreflective solid marking material and writing utensil |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0826268B2 (en) | 1996-03-13 |
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