JP2011162574A - Writing material containing afterglowing luminescent agent - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a writing material containing a long afterglowing luminescent agent for writing characters, a memo, etc., and drawing a rough map, etc., wherein the characters, memo, rough map, etc., are clearly seen even in a dark place and can be seen even after a lapse of time. <P>SOLUTION: The writing material containing a long afterglowing luminescent agent is characterized by containing the long afterglowing luminescent agent in a writing material. This writing material is used for a ballpoint pen, a permanent marker, a pencil, chalk, India ink, etc. An aluminate type long afterglowing luminescent agent containing Eu and Dy elements, an aluminate type long afterglowing luminescent agent containing boron, or the like is used as the long afterglowing luminescent agent. The long afterglowing luminescent agent is added in an amount of 1-80 pts.wt. relative to 100 pts.wt. of an ink material. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to a writing material containing a long-afterglow luminescent agent, and more particularly to a writing material containing a long-afterglow luminescent agent in which letters and schematics described in a dark place at night can be seen. is there.

Conventionally, when writing letters or pictures (schematic drawings) at night or in dark places, the light is turned on to make it brighter and the work is carried out by looking at the blueprints and design specifications necessary for the construction. Often, I often take notes at the construction site or look at them. In such a case, return to a bright place and take notes or illuminate with a flashlight, and commonly used writing instruments such as ball valves and magic pens. It is done to fill in and see letters.

Under such circumstances, ink compositions used for special purposes have been developed recently. Specifically, a dye ink composition containing europium that is substantially invisible in the visible light region and emits light by ultraviolet rays is known (for example, see Patent Document 1). Ink-jet printing ink compositions having light-emitting properties (for example, see Patent Document 2) and substantially colorless under visible light, have absorption in the ultraviolet wavelength, and when excited with ultraviolet light, A red light-emitting ink composition (for example, see Patent Document 3) that exhibits strong light emission at a wavelength is known.

Japanese Unexamined Patent Publication No. 2000-144029 (paragraph 0005) JP 2000-160083 (paragraph 0006) JP 2007-277404 A (paragraph 0010)

  However, the luminescent ink compositions described in Patent Documents 1 to 3 emit light when irradiated with ultraviolet light, and do not have light emission persistence. Irradiate ultraviolet light with letters or notes written in a dark place. There is only persistence of light emission, and light emission does not last for a long time in a dark place. Therefore, when the present inventor saw characters or schematics written in a dark place, they can see them well, and they can be seen enough even after a while, and further written as necessary. Various investigations were made on ink materials for writing instruments that can be seen continuously as well as letters, etc., and by combining writing materials and afterglow luminescent agents, letters and schematics written in dark places are lighted. Based on this finding, we have completed an ink material for writing instruments in which an afterglow luminescent agent is incorporated into the ink.

  Therefore, the problem to be solved by the present invention is that characters, memos and schematics that can be clearly seen even in a dark place such as a construction site can be drawn and the drawn characters, memos and schematics, etc. can be viewed over time. Another object of the present invention is to provide a writing material containing a long afterglow luminescent agent.

The above-described problems of the present invention are achieved by the following inventions.
(1) A writing material containing a long afterglow luminescent agent, wherein the writing material contains a long afterglow luminescent agent.
(2) The writing material containing a long afterglow luminescent agent as described in (1) above, wherein the writing material is for a ballpoint pen.
(3) The writing material containing a long afterglow luminescent agent as described in (1) above, wherein the writing material is for a magic pen.
(4) The writing material containing a long afterglow luminescent agent as described in (1) above, wherein the writing material is for pencils.
(5) The writing material comprising the long afterglow luminescent agent as described in (1) above, wherein the writing material is for white ink.
(6) The writing material containing a long afterglow luminescent agent as described in (1) above, wherein the writing material is for ink.

The writing instrument according to the above (1) of the present invention can draw letters, notes, schematics, etc. that can be clearly seen even in a dark place such as a construction site by containing a long afterglow luminescent agent in the writing material. It has an excellent effect of being able to see letters, memos, schematics, etc. drawn together with time.

In the invention of (1), since the writing material is for a ballpoint pen, characters, memos and schematics that can be clearly seen even in a dark place such as a construction site can be drawn and drawn characters, memos and schematics, etc. In addition to the effect that it can be seen over time, it has an excellent effect that it can be used in the same way as a normal ballpoint pen.

In the invention of (1), since the writing material is for a magic pen, characters, memos, schematics, etc. that can be clearly seen even in a dark place such as a construction site can be drawn and drawn, memos, schematics, etc. In addition to the effect that it can be seen over time, it has an excellent effect that it can be used in the same way as a normal magic pen.

In the invention of (1), since the writing material is for pencils, characters, memos and schematics that can be clearly seen even in a dark place such as a construction site can be drawn and drawn characters, memos and schematics, etc. In addition to the effect that it can be seen over time, it has an excellent effect that it can be used in the same way as a normal pencil.

In the invention of (1), since the writing material is for white ink, characters, memos and schematics that can be clearly seen even in dark places such as construction sites can be drawn and drawn characters, memos and schematics, etc. In addition to the effect that it can be seen over time, it has an excellent effect that it can be used in the same manner as ordinary white ink.

In the invention of (1), since the writing material is for ink, it is possible to draw letters, memos, schematics, etc. that can be clearly seen even in a dark place, and the drawn letters, memos, schematics, etc. can be viewed over time It has an excellent effect that it can be used.

Hereinafter, the present invention will be specifically described. However, the present invention is not limited to the specific examples described below.

  The writing material containing the long afterglow luminescent agent of the present invention is characterized in that the writing material contains a long afterglow luminescent agent, and the writing material used here is a ballpoint pen, The ink material for writing instruments used for a magic pen etc. can be used. As a writing material, pencils, white ink, ink, etc. can be used by adding the long afterglow luminescent agent to commonly used pencils, white ink, ink. There are mainly two types of writing materials for ballpoint pens, water-based inks and oil-based inks, and an ink material is produced by adding a long afterglow luminescent agent to any of these. Magic pens include general-purpose magic pens and fluorescent pens, and further include water-based inks and oil-based inks, and ink materials can be produced by adding a long afterglow luminescent agent to any of these. A pencil or white ink, which is a writing material, can be manufactured by mixing a long afterglow luminescent agent with the core material. Further, in the case of ink which is a writing material, ink is produced by adding a long afterglow luminescent agent to ink. The writing materials such as ballpoint pens, magic pens, pencils, white ink, and ink may be commonly used pencils, white ink, and ink, and are not particularly limited, and may be commercially available. .

Examples of the long afterglow luminescent agent used in the present invention include an aluminate-based long afterglow luminescent agent containing Eu and DY elements, and an aluminate-based long afterglow luminescent agent containing boron. Not only this but a long afterglow luminescent agent can be used without particular limitation. The long afterglow luminescent agent is also called a phosphorescent phosphor.
Since these long afterglow luminescent agents are commercially available, among them, an appropriate one can be selected and used. The addition ratio of these long afterglow luminescent agents is 1 to 80 parts by weight with respect to 100 parts by weight of the ink material, preferably 5 to 70 parts by weight, and more preferably 10 to 50 parts by weight. Most preferably, it is 10 to 30 parts by weight. When the addition ratio of the long afterglow luminescent agent is less than 1 part by weight, it cannot be sufficiently visually recognized in a dark place. Even if the addition ratio of the long afterglow luminescent agent exceeds 80 parts by weight, the luminescent properties are not improved any more, which is not economical. The ink material includes, for example, a base oil such as spindle oil, castor oil, dimethyl silicone oil, a pigment, a wetting agent, a pH adjusting agent, and a lubricant. Pencil core materials include core materials containing graphite and pitch. Further, the marker ink material is a solution dispersion containing pigments such as talc, calcium carbonate, titanium oxide, iron oxide, and bengara. Furthermore, chalk (white ink) and crayon are used for each purpose after adding the long afterglow luminescent agent to a commercially available product and mixing them uniformly. Specifically, it comprises components such as binders such as polyvinyl alcohol, carboxymethylcellulose, and vinyl chloride resin, solid substances such as talc and calcium carbonate, waxes such as paraffin wax and beeswax. You may add coloring agents, such as dye and a pigment, to these. These ink materials are used for writing instruments such as ballpoint pens, magic pens (including markers), chalk (including creons), pencils, and ink.

Black oil-soluble dye 5.0 parts by weight Oleic acid 0.4 parts by weight Benzyl alcohol 2.14 parts by weight Phenyl cellosolve 8.6 parts by weight Long afterglow luminescent agent (Picarico PC-10, manufactured by Chemtech Co., Ltd.)
3.0 parts by weight

  The above components were uniformly mixed to prepare an oil-based ink material for a pole pen. This ink material was filled into an ink tube of a ballpoint pen. When I created a blueprint with the ballpoint pen and looked at the road construction site and in a dark place, I could see the blueprint in a clear state. Furthermore, when I wrote the blueprint, I could clearly see the written letters and diagrams. Furthermore, letters and lines did not bleed even when wet with water.

Black pigment aqueous dispersion (17%) 7.0 parts by weight glycerin 4.0 parts by weight triethanolamine 0.16 parts by weight Polyoxyethylene methyl ether 0.2 parts by weight Long afterglow luminescent agent (Picarico PC-10, Chemtech) (Made by Co., Ltd.)
3.0 parts by weight water 55.5 parts by weight

The above components were uniformly mixed to prepare a water-based ink material for a pole pen. This ink material was filled into an ink tube of a ballpoint pen. When I created a blueprint with the ballpoint pen and looked at the road construction site and in a dark place, I could see the blueprint in a clear state. Furthermore, when I wrote the blueprint, I could clearly see the written letters and diagrams.

Graphite 40 parts by weight Coal tar pitch (softening point 180 ° C, average molecular weight 300)
40 parts by weight Long afterglow luminescent agent (Picarico PC-10, manufactured by Chemtech Co., Ltd.)
20 parts by weight

The above components were heated and kneaded, and the resulting mixture was heated and extruded to prepare a core material having a diameter of 1 mm. Next, this core material was heat-kneaded in an inert gas and kept at 900 ° C. for 2 hours. A pencil was produced from the obtained core material. When I looked at the characters in the memo pad drawn with a pencil in a dark place, I could see the characters that I could read. Furthermore, when I wrote in the notepad, I could clearly see the letters and diagrams I wrote.

Water Blue 3 (C.I. 45100) 5.0 parts by weight Xanthan gum 0.2 parts by weight Glycerin 5.0 parts by weight Ethylene glycol 5.0 parts by weight Phenol 0.3 parts by weight Long afterglow luminescent agent (Picarico PC- 10, Chemtech Co., Ltd.)
20 parts by weight water 84.5 parts by weight

The above components were mixed to obtain a uniform mixed dispersion. A marking pen was produced by filling the coarse dispersion fiber pen body with the mixed dispersion. I took the cardboard box with the markings with this marking pen to a dark place and checked the marks, and I was able to see a sufficiently bright mark. Also, when I looked at the drawings at dark construction sites, I was able to see the drawings.

Talc 10 parts by weight Carboxymethylcellulose 50 parts by weight Stearic acid 20 parts by weight Paraffin wax 10 parts by weight Long afterglow luminescent agent (Picarico PC-10, manufactured by Chemtech Co., Ltd.)
10 parts by weight

After sufficiently kneading the above components, the resulting mixture was extruded to produce a light green chalk. This chalk fluoresced and looked bright green when taken to a dark place. When I took the blackboard and drawn letters and lines on the blackboard in a dark place, I could clearly see the letters and lines that emitted green light. The crayon was also prepared by adding Picarico to the crayon material, then kneading and extruding. Similarly, it was clearly visible in dark places.

A commercially available ink was purchased.
Ink juice 60 parts by weight Stearic acid 20 parts by weight Long afterglow luminescent agent (Picarico PC-10, manufactured by Chemtech)
20 parts by weight water 10 parts by weight

  The above ingredients were mixed well to obtain a uniform dispersion of ink. I wrote letters on the coated paper with this ink and looked at it in a dark place.

The writing material containing the long afterglow luminescent agent of the present invention can be used on the spot even if the written material written on the letters and drawings does not return to a bright place every time when working in a dark place such as road works. Since it is possible to see written characters and drawings sufficiently, it has extremely high industrial applicability from the viewpoint of improving work efficiency.

Claims (6)

A writing material comprising a long afterglow luminescent agent, wherein the writing material contains a long afterglow luminescent agent. The writing material containing a long afterglow luminescent agent according to claim 1, wherein the writing material is used for a ballpoint pen. The writing material containing a long afterglow luminescent agent according to claim 1, wherein the writing material is for a magic pen. The writing material containing a long afterglow luminescent agent according to claim 1, wherein the writing material is for pencils. The writing material comprising a long afterglow luminescent agent according to claim 1, wherein the writing material is for white ink. The writing material containing a long afterglow luminescent agent according to claim 1, wherein the writing material is for ink.