JPH1129184A - Egg container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To give an antibacterial property to an egg container and prevent proliferation of bacteria. SOLUTION: A ceramic antibacterial agent chiefly composed of such a material that silver is absorbed on a ceramic such as silica or alumina is mixed with a synthetic resin material when the synthetic material such as polyethylene terephthalate(PET) is formed to make a sheet, in egg containers 1, 2. And the synthetic resin sheet is formed by vacuum forming or blow molding. The ceramic radiates far infrared rays of 6-30 μm wave length and converts far infrared rays radiated from the ceramic to wave length of about 3 μm with silver as a catalyst. In this conversion, the active source body is ceramic and the oscillation wave of the ceramic is converted to energy of 2-5 μm wave length by the oscillation by a silver catalyst.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an egg container made of a synthetic resin sheet in which a body portion having a concave portion for storing an egg and a lid portion are integrally connected via a flexible connecting edge portion. In particular, those having antibacterial properties.

[0002]

2. Description of the Related Art As shown in the perspective view of FIG.
A synthetic resin sheet is integrally formed by vacuum molding or blow molding, comprising a body part 1, a lid part 2, and a hinge part 3 for connecting these two parts 1 and 2 so as to be freely bent. 1 and the lid portion 2 are provided with concave portions 12 and 22 for accommodating a plurality of eggs separated by partition walls 11 and 21 and a peripheral edge portion 5.

Each of the recesses 12 and 22 has a large number of ribs 13,
23 is provided so that the eggs are held as floated as possible, and the impact is reduced when the impact is received.

In such a conventional egg container, after an egg is placed in the concave portion 12 of the body portion 1 of the egg container, the lid portion 2 is folded over the body portion 1 and the peripheral portion 5 is stapled or heat-sealed. Was sealed and distributed.

[0005]

The produced eggs are likely to be contaminated with Salmonella, etc., so they are washed and then shipped in containers. However, when bacteria were attached, they sometimes proliferated during the distribution process. Thus, the present invention has been conceived to prevent the growth of bacteria attached to eggs by imparting antibacterial properties to the egg container.

[0006]

The egg container according to the present invention comprises a synthetic resin sheet obtained by kneading a ceramic antibacterial agent whose main component is a material obtained by adsorbing silver and titanium oxide into ceramics such as silica and alumina. It is molded.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The egg container of the present invention is obtained by adsorbing silver on ceramics such as silica and alumina when molding a synthetic resin material such as polyethylene terephthalate (PET) into a sheet. A ceramic-based antibacterial agent containing as a main component is kneaded. Then, the synthetic resin sheet into which the ceramic antibacterial agent is kneaded is vacuum-molded or blow-molded to produce an egg container as shown in FIG.

[0008] As the ceramic antibacterial agent to be kneaded into the synthetic resin, one obtained by adsorbing fine powder ceramics such as silica and alumina using silver as a catalyst is used.

Ceramics emit far-infrared rays having a wavelength of 6 to 30 μm, and use silver as a catalyst to convert far-infrared rays emitted from the ceramics to a wavelength of about 3 μm. In this conversion, the active substance is a ceramic, and the vibration wave of the vibrating ceramic is converted into energy having a wavelength of 2 to 5 μm by the vibration of the silver catalyst.

With this energy, activated oxygen and active oxygen having a bactericidal action can be produced from oxygen in the air.

Therefore, in order to test the antibacterial performance of the egg container of the present invention, general bacteria and Escherichia coli were added to an egg container obtained by kneading a PET sheet obtained by kneading 0.1% by weight of a ceramic antibacterial agent into a PET resin. A sample was prepared by adding a contaminated egg by dripping a suspension of Salmonella. After leaving each sample for 2-3 days while changing the environmental conditions of temperature and humidity,
When the eggs were broken and the number of surviving bacteria (cells / g) was measured for the shell, the results shown in the following Tables 1 to 3 could be obtained. The comparative example is a sample made of a sheet of a synthetic resin into which ceramic antibacterial properties are not incorporated.

[0012]

[0013]

[0014]

The ceramic antibacterial agent used in the above embodiment of the present invention is one in which silver is adsorbed on ceramics as a catalyst, but one in which titanium oxide is adsorbed on ceramics as a catalyst has the same antibacterial effect. Obtainable.

[0016]

As is evident from the above test results, 0.1% by weight of the ceramic antibacterial agent was added to the synthetic resin.
A sheet is made by kneading the above, and according to the egg container in which this sheet is molded, even if the contact portion between the egg container and the egg is small,
Since the ceramic antibacterial agent produces activated oxygen and active oxygen having a bactericidal action from oxygen in the air, it is possible to prevent the propagation of bacteria.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an egg container of the present invention;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body part 2 Lid part 3 Hinge part 5 Peripheral edge 11,21 Partition wall 12,22 Concavity 13,23 Rib

Claims (1)

[Claims] 1. An egg container formed by molding a synthetic resin sheet in which a ceramic antibacterial agent mainly composed of adsorbed silver and titanium oxide is adsorbed on ceramics such as silica and alumina.