JP2000161900A - Production of light storage bullet for model gun - Google Patents

Abstract

PROBLEM TO BE SOLVED: To capture the trajectory of a bullet easily and to facilitate collection thereof by forming the bullet of a biodegradation model gun using an N noctilucent pigment absorbing and storing UV-rays of sun light or fluorescent lamp to emit light at high brightness for a long time so that the bullet can emit light in dark night. SOLUTION: The bullet of a model gun is produced of a material containing an N noctilucent pigment absorbing and storing UV-rays of sun light or fluorescent lamp to emit light at high brightness for a long time so that the bullet lights clearly in the dark and hits a light emitting target accurately. When such a bullet is applied to a machine gun, trajectory of bullets is lighted as a line in case of high speed continuous shooting and various games can be enjoyed in dark night. Gelatin or corn starch is suitable as the material of bullet and a translucent gelatin material is admixed with a small quantity of an N noctilucent pigment while starch is coated, on the surface thereof, with the N noctilucent pigment using a transparent vehicle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[Industrial application field] A bullet can be fired in the dark so that it shines sharply and hits a luminescent sign accurately.
In high-speed continuous firing with a machine gun, the trajectory appears to glow linearly, and depending on the light emission content of the sign coated with the N luminous pigment, various ways of enjoying the game as a dark night can be performed. The fired bullets emit light for a long time and are collected and used repeatedly.
Therefore, it is economical and saves resources. In addition, since biodegradable materials are used, even if a small amount of unrecovered bullets appears, it is an environmentally friendly product that decomposes in soil.

2. Description of the Related Art Even if a bullet is fired from a model gun, the trajectory of a small-diameter bullet is difficult to grasp and cannot be accurately hit on a target. Also, the recovery of scattered bullets is extremely poor.
Plastics do not decompose in soil. Even if light is emitted by adding an organic fluorescent pigment, the light is immediately extinguished because there is no luminous power, and luminous materials other than the N luminous pigment have poor luminous properties.

[Problems to be Solved by the Invention] A bullet containing an N luminous pigment exhibiting high brightness for a long time absorbs ultraviolet light and stores light when exposed to sunlight for a short time. When fired from the gun, it travels in a clear trajectory while emitting high brightness in the dark. The trajectory appears as a line at high-speed continuous firing. Therefore, it is possible to fire such that it accurately hits the sign. Keeping the same high brightness for a long time makes it easy to collect bullets. Even if there is uncollected material, it is biodegradable and environmentally friendly.

[Means to be Solved by the Invention] In order for a bullet fired from a model gun to emit light in the dark for a long time, a small amount of a pigment of the following chemical formula is mixed into the material, or This is to apply using a vehicle.
Also, in order to be environmentally friendly, it is necessary to adopt a material that allows unrecovered projectiles to be decomposed in soil. The latter includes biodegradable polymers. Chemical formula of N luminous pigment Blue-green emission color Sr4AL14O25: Eu, Dy Purple blue 〃CaAL2O4: Eu, Nd Yellow-green ＳSrAL2O4: Eu, Dy

Example 1 The following formulation was heated to 100 ° C. or more while stirring well to make it insoluble in water. Gelatin 93% Calcium carbonate 5% N luminous pigment 2% Total (weight) 100% Injected into a press mold and cooled to obtain a 5 mm-sized spherical solid, whose surface was polished to form a bullet. Those exposed to sunlight for a short time emitted vivid fluorescence in the dark at night. The bullet was fired at the luminous sign and was correctly hit. Since it emitted light for a long time, it was collected and used repeatedly. We put a number on the luminous target and competed for accuracy and played games. [Example 2] Corn starch 63% Calcium carbonate 37% Total (weight) 100% Starch was made into a paste and mixed with calcium carbonate,
Melts at high temperature. The mixture was placed in a mold and cooled to obtain a spherical white solid having a size of 3 mm. The following solutions were applied to the respective surfaces. Refined rosin 30% Terpin oil 65% N luminous pigment 5% Total (weight) 100% The above-mentioned composition is stirred, a spherical white solid is put therein, pulled up, and dried while rolling on a net plate. This is a model machine gun bullet. Bullets fired continuously from the gun appeared to flow with their orbits shining linearly.

[Effect of the Invention] A luminous bullet is exposed to sunlight for a short period of time to absorb ultraviolet light and store the light. This bullet is fired from a dark night model gun at the luminous target. The orbit of the brilliant light is the position of the firing bullet. By all means, it is possible to accurately hit the luminescent target. It shines and flows linearly with a machine gun. It emits light with the same brightness for a long time, so it can be collected and used repeatedly. Since it is made of biodegradable materials, it decomposes in soil. In other words, this bullet is an economical, resource-saving, and environmentally friendly product. Depending on the content of the luminescent target, the game effect can be enhanced.

Claims (5)

[Claims] 1. A biodegradable model gun bullet that emits light in the dark at night by using an N-night pigment that absorbs and absorbs sunlight or ultraviolet light of a fluorescent lamp and emits high-luminance light for a long time. 2. A natural biodegradable polymer material is used as a material for the bullet. Naturally occurring gelatin or corn corn starch is most suitable as this material. A small amount of N luminous pigment is mixed in the translucent gelatin material.
Starch rich in amylose components has high gel strength and is water-resistant. Since this becomes an opaque white sphere, the reflection of ultraviolet rays is used, and an N luminous pigment is applied to the surface thereof using a transparent vehicle. 3. A typical blend of the vehicle of [2] is a purified rosin of a water-insoluble biodegradable polymer as a solute and terpene oil as a solvent. 4. An inorganic powder is added as a reinforcing material / filler for the material. 5. A marker is coated with an N luminous pigment with an adhesive and luminesces to form a luminous body.