JP2009189610A - Structure of tubular chemiluminescent body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tubular chemiluminescent body without leaking a luminescent liquid when bending a luminescent bracelet or necklace. <P>SOLUTION: In a tube having a multi-layer structure, at least an inner tube is made of a polyorefin resin, and both ends of the tube are sealed. A glass ampule is housed inside the inner tube. One of two kinds of luminescent liquids which present chemiluminescence when mixed together is put into the glass ampule, and the other liquid is put into a space being outside the glass ampule and inside the inner tube. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to the structure of a tubular chemiluminescent material used as a glowing bracelet or necklace.

Shining bracelets are known as prior art in Japanese Patent Application No. 7-113981 and Japanese Patent Application No. 2001-210630.
It is made.

The chemiluminescent material has a structure in which an elongated glass ampoule is accommodated in a single-layer tube sealed at both ends. In order to mix two kinds of luminescent liquid, it is necessary to bend the tube ampule and break the glass ampule inside. As shown in Fig. 1, when the central part of the bracelet is bent at an acute angle and folded back from Fig. A to Fig. B and from Fig. B to Fig. A, the conventional shining bracelet and necklace are bent at an acute angle because the tubular container has a single layer structure. Broken glass can damage the tube wall when curled. When the bending method as shown in FIG. 1 was repeated in this state, an accident occurred in which the wall was broken and the luminescent liquid jumped out.

Japanese Patent Application No. 7-113981 Japanese Patent Application No. 2001-210630

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a tubular chemiluminescent material in which a luminescent solution does not leak when a bracelet or necklace that shines is bent. .

  The present invention is characterized in that an accident of liquid leakage due to glass is prevented by making the tubular container into a two-layer or multilayer structure.

According to the present invention, there is provided a highly safe tube-shaped chemiluminescent material that can prevent leakage of the luminescent liquid even if it is bent unexpectedly by an infant, even though it is displayed on the product package with a notice. Can be provided.

Glowing bracelets are commercially available with outer diameters of about φ5, φ6, and φ7.5. Since the occurrence of a liquid leakage accident occurs mainly at φ5, a single layer tube and a multilayer tube are compared with this size.
In addition, even when the single layer polyethylene tube and the single layer polypropylene tube were repeated 20 times in the state of the bending test A in FIG. The angle bent at an acute angle was 0 to 5 °. When the glass ampoule is inside, if the glass ampoule breaks and the shards damage the wall surface of the tube or is stuck in the wall surface, the above-described bending test is repeated, and it is considered that liquid leakage will eventually occur.

Since a brilliant bracelet or necklace is used as a ring at a joint, flexibility is required. If the purpose is to prevent only liquid leakage, it can be solved by increasing the wall thickness of the tube. Moreover, it becomes a cause by which light transmittance falls.
For the above reasons, the current product has a thickness of about 1 mm. In the following tests, the measurement was performed on the basis of about 1 mm. Since the main body of the present invention has a structure that does not leak, description of the chemiluminescent composition is omitted.

For the outer tube made of thermoplastic resin, polyvinyl chloride, polyvinyl acetate, polyurethane, nylon, polyethylene terephthalate can be used in addition to polypropylene and polyethylene.
For the outer and inner tubes, choose light-transmitting materials.

In the following tests, FIGS. 1A and 1B were repeated (described above).
Inspection product A
Both ends of a single layer polyethylene (hereinafter abbreviated as PE) tube having an inner diameter of 2.8 mm and an outer diameter of 5 mm are sealed, and a glass ampule with an outer diameter of 2 mm, a wall thickness of 0.11 mm, and a total length of 180 mm is accommodated therein. A bracelet in which ampule is filled with a fluorescent solution and an oxidizing solution is filled in the tube outside the ampoule. The total length of the bracelet is 200mm.
Inspection product B
A bracelet made by replacing the single layer PE tube of inspection product A with a single layer polypropylene (hereinafter abbreviated as PP) tube.
Test result 1 of the bracelet

Consideration 6 to 7 out of 100 results are leaked within 10 times. Even if the product package prohibits such sharp bends, some users do not pay attention, so they are dared to test under severe conditions. Infants also have information about biting with their teeth. The PP tube has a slight improvement in liquid leakage, but it is hard and difficult to bend, and even if it is ringed with a joint, the shape of the round ring cannot be maintained due to strong repulsion.

Two-layer tube test inspection product C
The outer PP tube has a thickness of 0.6 mm (inner diameter φ3.8, φouter diameter 5), and the inner PP tube has a thickness of 0.5 mm (inner diameter φ2.6, outer diameter φ3.6). Was made.
Inspection product D
The outer PP tube has a thickness of 0.6 mm (inner diameter φ3.8, φouter diameter 5), and the inner PE tube has a thickness of 0.5 mm (inner diameter φ2.6, outer diameter φ3.6). Inspection product E
The outer PE tube has a wall thickness of 0.6 mm (inner diameter φ3.8, φouter diameter 5), and the inner PP tube has a wall thickness of 0.5 mm (inner diameter φ2.6, outer diameter φ3.6). Was made.
Inspection product F
The outer PE tube has a thickness of 0.6 mm (inner diameter φ3.8, φouter diameter 5), and the inner PE tube has a thickness of 0.5 mm (inner diameter φ2.6, outer diameter φ3.6). Was made.
Test result 2 of the above bracelet

Consideration Inspection product C is hard and difficult to ring.
The inspection product E has a drawback that it is easily broken at an acute angle.
The inspection product F is soft and easy to break at an acute angle, and there is a possibility that an infant bites.
Inspection product D had the lowest accident rate among the combinations.
In any case, the occurrence of liquid leakage is drastically reduced in the two-layer tube as compared with the single-layer tube of Example 1. Within 10 times, it is reduced to 1/2 to 1/7.

Since the inspection product D of the test result 2 has the least number of liquid leaks, further improvements were made.
The solution was achieved by increasing the thickness of the inner PE tube and decreasing the thickness of the outer PP tube.
Inspection product G
The outer PP tube has a thickness of 0.3 mm (inner diameter φ4.5, φouter diameter 5.1), and the inner PE tube has a thickness of 0.9 mm (inner diameter φ2.5, outer diameter φ4.3). Made a bracelet.
Test result 3 of the above bracelet

Consideration Even if the inner PE tube is made thicker, even if glass fragments damage the wall and liquid leaks, the outer PP tube is harder than the inner PE tube, and the probability of leakage from this wall is zero in the test. there were.
In addition, since an outer side PP tube is hard, there also exists an advantage which an infant does not bite easily.

FIG. 3 is an explanatory view of a tube-shaped chemiluminescent body having both ends of the inner tube opened. FIG. 4 shows an outer tube formed by covering the inner tube with a heat-shrinkable tube and shrinking it with hot air.
The inner tube and the outer tube are separately manufactured and combined, and the inner tube and the outer tube are manufactured by extruding a two-layer tube at the same time. In any case, the gist of the present invention is to prevent liquid leakage with a tube having two or more layers.
In other words, once a single layer tube is scratched, the scratch becomes larger (cracks spread), and finally the liquid leaks from the surface of the tube, but if the tube is covered with an outer tube, the liquid will leak. Can be stopped. Therefore, the multilayer structure is effective, but two layers are the best considering the manufacturing process and cost.

It is explanatory drawing of the test method of this invention. It is a cross-sectional explanatory drawing of the tube-shaped chemiluminescent body of this invention. It is a cross-sectional explanatory drawing of the tube-shaped chemiluminescent body of this invention. It is a cross-sectional explanatory drawing of the tube-shaped chemiluminescent body of this invention.

Explanation of symbols

1 Outer tube 2 Inner tube 3 Glass ampoule 4 Fluorescent solution 5 Oxidizing solution

Claims (9)

In a multi-layered tube, at least the inner tube that comes into contact with the luminescent solution is made of polyolefin resin, both ends of the tube are sealed, a glass ampoule is accommodated in the inner tube, and two types of chemical compositions are mixed for chemical reaction. A tube-shaped chemiluminescent structure characterized in that one liquid exhibiting luminescence is placed in a glass ampule and the other liquid is placed in an inner tube outside the glass ampule. An inner tube made of polyolefin resin is inserted into the outer tube made of thermoplastic resin, both ends of the tube are sealed, a glass ampoule is accommodated in the inner tube, and chemiluminescence is exhibited by mixing two kinds of chemical compositions. 2. The tubular chemiluminescent structure according to claim 1, wherein one liquid is put in a glass ampoule and the other liquid is put in an inner tube outside the glass ampoule. The structure of the tubular chemiluminescent body according to claim 1 and 2, wherein the other liquid of the chemical composition is placed in the inner tube and in the gap between the outer tube and the inner tube. The tube-like chemiluminescent structure according to claim 1 or 2, wherein the outer tube and the inner tube are formed of a polyolefin resin. The structure of the tubular chemiluminescent body according to claim 1 or 2, wherein the outer tube and the inner tube are formed of at least one of polypropylene and polyethylene. The structure of the tubular chemiluminescent body according to claim 4, wherein the inner tube is made of polyethylene resin and the outer tube is made of polypropylene resin. The tubular chemiluminescent structure according to claim 1 or 2, wherein both ends of the inner tube inserted into the outer tube sealed at both ends are opened. The structure of the tubular chemiluminescent body according to claim 1 or 2, wherein characters, patterns, pictures, etc. are expressed on the outer tube. The structure of the tubular chemiluminescent body according to claim 1 or 2, comprising an outer tube in close contact with a polyolefin resin inner tube with a heat-shrinkable tube.