JPH0681920U - Pollution-free container - Google Patents

Abstract

(57) [Summary] [Purpose] No residue is produced even after incineration.
Also, to provide an environment-friendly and pollution-free container that does not generate harmful gas. [Structure] This container is formed of a composite material containing a substance having high starch quality and a substance enhancing water resistance. In the production method, carboxymethyl cellulose is added to and dissolved in a sol-like substance obtained by immersing rice in water and heating. Next, this mixture may be injected between molds to form a molded body, and then pressurized and heated for a predetermined time.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pollution-free container used for packaging foods and the like.

[0002]

[Prior art]

 Environmental pollution such as recent air pollution and water pollution has become a major social problem. In particular, the problems caused by petrochemicals are complicated and extremely difficult. Thinking about containers for packaging food, tray containers made of foamed polystyrene and petrochemicals, which are considered to be convenient for humans, are flooding the streets, putting pressure on the city's garbage administration. This causes pollution problems due to harmful gas generated when incinerated.

Therefore, for example, as disclosed in Japanese Patent Application Laid-Open No. 4-57734, mineral particles such as sand, fibrous reinforcing materials such as wood pulp, plant binders such as wheat flour, and sodium bicarbonate. A method is known in which a container is manufactured by molding a plastic composition containing a foaming agent such as da and water, and then heat-treating the composition to cause it to expand and at the same time dry and cure it.

[0004]

[Problems to be solved by the device]

 However, since the mineral particles are used as a material in the container as shown in the above publication, a residue is generated when incinerated. Therefore, incineration requires a step of treating the residue, which is troublesome. If the particle size of the mineral particles is smaller than 50 μm, the container may be cracked or deformed, and the strength of the product may be lowered. The present invention solves the above-mentioned problems, and an object thereof is to provide an environment-friendly pollution-free container that does not generate a residue even when incinerated and does not generate a harmful gas. To do.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is a pollution-free container formed of a composite material containing a substance having high starch quality and a substance enhancing water resistance.

[0006]

[Action]

 According to the container having the above structure, since it is formed of a composite material containing a substance having high starch quality and a substance that enhances water resistance, it is light and has a certain strength, and also has water resistance and various substances, In particular, it can be used as a container for packaging foods and the like. And even if it is discarded, it will be easily decomposed by microorganisms in the soil to cause no environmental pollution, and no residue will be generated even if it is incinerated, and no harmful gas will be generated. .

[0007]

【Example】

 1 shows an embodiment of the pollution-free container of the present invention, and FIG. 2 shows an embodiment of its manufacturing method. The container 1 is formed of a composite material containing a substance having high starch quality and a substance enhancing water resistance. Explaining the production method, rice, which is a highly starchy substance, is immersed in water (# 1) and heated (# 2) to obtain a sol-like substance. While stirring this substance, gradually add carboxymethylcellulose as a water resistant paste to dissolve it (# 3). Next, this mixture is poured between tray-shaped molds to form a molded body having a thickness of about 2 to 3 mm (# 4), and the mold is not removed, and is pressed and heated for a predetermined time (# 5). ). This heating may be carried out by placing the entire mold in a furnace heated to about 250 ° C. for about 15 minutes. After a lapse of a predetermined time, the mold is removed to obtain a tray-shaped container. FIG. 2 shows an example of the tray container 1 manufactured by the above manufacturing method. The shape of the container is not limited to the tray shape, and a cup shape can be similarly manufactured.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the invention. For example, in the present embodiment, rice (old rice may be used) was used as the high-starch substance, but millet, banana, or a mixture thereof may be used. Further, sodium alginate or konjak may be used in place of carboxymethylcellulose as a substance or solvent for improving water resistance. Further, a resin may be added to a substance having a high starch quality in order to enhance water resistance, in which case the property of repelling water is enhanced. Furthermore, in the above, an example was shown in which a substance that enhances water resistance was mixed into a starchy substance, but a molded body was made of a starchy substance and the substance that enhances water resistance was applied to the surface. Good. The shape of the container may be a tray shape or a cup shape.

[0009]

[Effect of device]

 As described above, according to the present invention, since it is formed of a composite material containing a substance with high starch quality and a substance that enhances water resistance, it is possible to obtain a container that is light and has some strength and is water resistant. This container can be used as a container for packaging various articles, especially foods and the like. Even if they are discarded, they are easily decomposed by microorganisms in the soil to cause no environmental pollution, and they are harmless even if they are eaten by birds and animals, and even if they are incinerated, they produce residues. In addition, it does not generate harmful gas, is harmless, and can contribute to the improvement of municipal waste administration.

[Brief description of drawings]

FIG. 1 is a perspective view of a container according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a method of manufacturing a container according to an embodiment of the present invention.

[Explanation of symbols]

 1 tray container

Claims (1)

[Scope of utility model registration request] 1. A pollution-free container formed of a composite material containing a substance having high starch quality and a substance enhancing water resistance.