JPH07100347B2 - Sheet molding container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a molding container for accommodating eggs, tofu, confectionery, etc. integrally molded from a thin sheet material by using vacuum or blow molding means. is there.

<Prior Art> Conventionally, a molding container of this type has a vacuum or blow molding means using a thin sheet material made only of a synthetic resin material having excellent extensibility such as polypropylene, polystyrene, polyethylene or polyvinyl chloride. Is molded through.

<Problems to be Solved by the Invention> Such a molded container is used for packing articles in the distribution process from the producer to the consumer, and the number of the used containers is increasing year by year. ing.
Since such a molded container is thrown as garbage when it reaches the hand of the consumer, the disposal of the waste is inevitably a problem.

That is, the waste of the synthetic resin molded container as described above does not naturally decompose and remains as a solid, which impairs the aesthetics of the environment and also causes a high calorific value when burned (for example, 11,100 Kcal / Kg for polypropylene). In addition, the combustion equipment is greatly damaged, a large amount of gas is generated at the time of combustion, and toxic gas is also generated, which significantly pollutes the natural environment.

Therefore, the present invention, when discarded as waste, natural decomposition is promoted by weathering, microorganisms, etc., can be burned with low combustion calories in an incinerator, and can suppress generation of toxic gas etc. The main object of the present invention is to provide a sheet molding container capable of reducing the cost of the above.

<Means for Solving the Problems> In order to achieve the above object, in the sheet molding container according to the present invention, a synthetic resin material having excellent extensibility such as polyethylene, polystyrene, polypropylene, polyurethane, or polyvinyl chloride. In addition, as a raw material, a thin sheet material formed of a material in which crushed okara or bran that has been disposed of as waste or crushed and kneaded to be an emulsion is blended at a high ratio of 30 to 60%, It has a structure molded by vacuum or blow molding means.

<Function> Since the container molded in this manner has the plant fiber-containing plant mixed in the synthetic resin material at a high ratio within the above range, the combustion calorie at the time of combustion can be obtained only when the conventional synthetic resin material is used. Compared with being able to suppress the calorie, it is possible to mitigate the adverse effect on the incineration facility, and it is possible to suppress the generation of toxic gas due to the presence of contaminants,
In addition, when it is dumped as garbage, it can promote natural degradation by weathering and microorganisms, which can greatly contribute to the social problem of improving environmental pollution. In addition, as a plant with a high content of plant fiber, "Okara" Since waste such as "Fusuma" is used, it is possible to reduce the cost effective as a disposable container.

<Examples> Examples of the present invention will be described below with reference to the drawings.

The molded container shown in the drawings is shown as an egg container, and comprises a body part (1), a lid part (2), and a hinge part for connecting these parts (1) and (2) openably and closably. 3) and is integrally molded from a thin sheet material (A) through a vacuum or blow molding means. Further, the body portion (1) and the lid portion (2) are formed with concave portions (4) ... Which form a plurality of egg holding spaces aligned when the both portions are closed.

In the figure, (5) is a partition column for the recesses (4) ...
Is a partition wall, and (7) is the top of the partition wall.

Thus, this molded container is made of synthetic resin materials such as polypropylene, polyethylene, polypropylene, polyurethane, polyvinyl chloride, etc., which have excellent extensibility. A sheet material (A) is formed from a new kneading material mixed in a high ratio as described above, and the sheet material (A) is molded by vacuum or blow molding means.

As the above-mentioned plant having a high content of plant fiber, for example, bran or the like is preferable in addition to the above okara. In particular, okara and fusuma are often discarded as wastes, and it is difficult to dispose of them because of the locational difficulty, difficulty in preventing bad odor due to decay, and transportation costs. However, the cost of materials can be reduced by using such waste materials.

The compounding ratio of such a plant having a high content of plant fiber to the synthetic fiber is selected from the range of 30 to 60%. If a high degree of extensibility is desired, the composition ratio should be as low as 30-45%, and if the importance of weathering when disposing as garbage and decomposition function by microorganisms is emphasized, a high composition ratio of 45-60% is preferable.

Further, the above okara or bran may be a dry fine powder as it is, or a mixture obtained by crushing and kneading to form an emulsion, may be blended with the synthetic resin, but only the plant crude fiber is decomposed into a dry fine powder. You may make it mix | blend the thing. This makes it possible for the synthetic resin to function as a plasticizer for the cellulose, which is the main component in the plant fiber, and at the same time effectively retain the synthetic resin's excellent extensibility properties, thus making the plant fiber material highly functional. Even if blended in a ratio, good extensibility as a molding sheet can be maintained.

Since the container thus formed contains plant fiber-containing plants in a high proportion in the synthetic resin material,
When it is discarded as garbage, it can be decomposed in the natural environment by weathering, microorganisms, etc. In addition, according to the experimental value of the inventor, the burning calorie at the time of burning was 5,600 Kca when polypropylene was mixed with 50% of the plant.
A low value of l / Kg (11,100 Kcal / Kg for polypropylene) was obtained.

Although the representative embodiments of the present invention have been described above, the present invention is not necessarily limited to the above-mentioned embodiments, and it goes without saying that appropriate modifications can be made without departing from the spirit of the present invention. Is.

<Effects of the Invention> As is apparent from the above description, the molded container according to the present invention is a synthetic resin material having excellent extensibility such as polyethylene, polystyrene, polyethylene, or polyvinyl chloride, and a high content of plant fibers. Vacuum or blow a thin sheet material made of a new material that is a mixture of crushed waste such as okara or fusuma or that is crushed and kneaded to form an emulsion at a high ratio of 30 to 60%. Since it is molded through the molding means, the plant fiber-containing plant blended at a high ratio can suppress the calories burned at the time of combustion to a low calorie compared with the case of only the synthetic resin material such as polypropylene. It is possible to mitigate the adverse effects on the incinerator, suppress the generation of toxic gas, and prevent the wind from being discharged as garbage. It can promote natural decomposition by microorganisms, microorganisms, etc., and can greatly contribute to the social problem of improving environmental pollution. In addition, it uses waste such as okara and bran as a plant with a high content of plant fiber. Therefore, there are various remarkable effects such as effective cost reduction as a disposable container.

[Brief description of drawings]

The drawings are perspective views showing an embodiment of a molded container according to the present invention. In the figure, (A) is a sheet material forming a molded container.

 ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-63-33448 (JP, A) JP-A-63-236575 (JP, A) JP-A-61-225234 (JP, A) JP-A-63- 279755 (JP, A) JP 1-99560 (JP, A) JP 2-349 (JP, A) JP 58-56534 (JP, B2) JP 58-32579 (JP, B2)

Claims (1)

[Claims] 1. A synthetic resin material having excellent extensibility, such as polyethylene, polystyrene, polypropylene, polyurethane, polyvinyl chloride, etc., which is obtained by crushing or crushing and kneading okara or bran that has been disposed of as waste, and crushing and kneading the emulsion. Molded container molded by vacuum or blow molding means using a thin sheet material made of a material in which a high proportion of 30% to 60% is mixed.