JP2706901B2 - Sheet molding container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molded container for storing eggs, tofu, confectionery and the like integrally formed from a thin sheet material by vacuum or blow molding means.

[0002]

2. Description of the Related Art Conventionally, this type of molded container has a vacuum or blow molding means using a thin sheet material made only of an extensible synthetic resin material such as polypropylene, polystyrene, polyethylene or polyvinyl chloride. Is molded through.

[0003]

Such a molded container is used for packing goods in a distribution process from a producer to a consumer, and the number of used containers is increasing year by year. ing. Since such a molded container is thrown away as garbage when it reaches the consumer's hand, the disposal of the waste is inevitably a problem.
That is, the waste of the synthetic resin molded container as described above is not decomposed naturally and remains in a solid state, which impairs the aesthetic appearance of the environment, and when burned, burns high calories (for example, 11,100 Kcal / Kg), causing great damage to incineration equipment, and generating a large amount of gas during combustion.
There is a problem that toxic gas is generated and the natural environment is significantly polluted.

Therefore, according to the present invention, when discarded as waste, natural decomposition is promoted by weathering or microorganisms, and incinerators can be burned with low combustion calories and the amount of toxic gas and the like can be reduced. At the same time, it is an object of the present invention to provide a sheet molded container which can reduce the cost of the material, and in particular, has a sterilizing performance in the molded container itself and is useful for preventing the food contained in the container from being putrefactive.

[0005]

Means for Solving the Problems To achieve the above object, a sheet-formed container according to the present invention is a method for producing a synthetic resin material having excellent extensibility, such as polyethylene, polystyrene, polypropylene, polyurethane, polyvinyl chloride, and the like. a dregs boiling out tea grounds to form a thin sheet material by compounding with pulverized with ones or crushed kneaded high ratio of the weight ratio of 30% to 60% of those Emarujiyon of it, this thin sheet material
Only a molding material is molded by vacuum or blow molding means.

[0006]

The container molded in this manner is blended with a synthetic resin material at a high ratio within the above-mentioned range, using tea husks that have bactericidal properties per se. It is possible to reduce the calories compared to the case of using only synthetic resin material, reduce the adverse effect on incineration equipment, suppress the generation of toxic gas by the presence of mixed tea husk powder, and as garbage When discarded, weathering and natural decomposition by microorganisms can be promoted, which can greatly contribute to social problems such as improvement of environmental pollution. In particular, tea husks that are discarded are used. Tea husks contain a high content of plant fiber and have a bactericidal performance. The cost effective as a container can be reduced.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. The molded container V shown in the drawing is a chicken egg container. The container V includes a body 1, a lid 2,
A hinge portion 3 for connecting these two portions 1 and 2 so as to be openable and closable is integrally formed from a thin sheet material A by using vacuum or blow molding means. Further, the body portion 1 is formed with a plurality of concave portions 4 forming a plurality of egg holding spaces which are aligned when the two portions are closed. In the drawing, reference numeral 5 denotes a partition support of the recesses 4,..., 6 denotes a partition wall, and 7 denotes a top of the partition wall.

The molded container V is a plant having a high content of plant fibers in a synthetic resin material having excellent extensibility such as polypropylene, polyethylene, polypropylene, polyurethane, polyvinyl chloride, etc., and having bactericidal properties. Sheet material A is a kneaded material containing a high proportion of tea husks as shown below.
Is formed using the sheet material A by a generally known vacuum molding or blow molding means.

The powdered or emulsified tea husk mixed into the sheet material is a substance containing a high content of plant fibers, and although it is a substance having a high sterilizing performance, it is often discarded as waste. is there. Also, due to the locational difficulties and transportation costs associated with the disposal,
At present it is difficult to dispose. However, the present invention, by effectively utilizing such waste,
The cost of the container material can be reduced by utilizing the properties of the material of the waste itself.

[0010] Such a tea husk powder is selected and used in a weight ratio of 30 to 60% with respect to the synthetic resin.
If a high degree of extensibility of the sheet material is desired, the compounding ratio should be as low as 30 to 45%. If the importance is given to the function of decomposing by garbage, such as weathering and microorganisms, the compounding ratio is as high as 45 to 60%. Is good.

This tea husk may be dried as it is to give a fine powder, or crushed and kneaded to form an emulsion, which may be blended with the synthetic resin. You may mix what was made. In this way, the synthetic resin, which is the main component in the plant fiber, can function as a plasticizer, while at the same time effectively retaining the excellent extensibility of the synthetic resin. However, good extensibility as a molding sheet can be maintained.

[0012] The container thus formed contains a high proportion of plant fiber-containing tea husks in a synthetic resin material, and when discarded as garbage, is exposed to natural environment due to weathering or microorganisms. Can be decomposed.
According to the experimental values of the inventor, the calorie burned during combustion was as low as 5,800 Kcal / Kg (11,100 Kcal / Kg for polypropylene) when 50% of tea husk powder was mixed with polypropylene. Was.

Although the representative embodiments of the present invention have been described above, the present invention is not necessarily limited to the above-described embodiments, and the molded container is not limited to a chicken egg container, but may be a tofu container, meat or fish meat. A container, a confectionery container or any other container can be molded, and can be appropriately modified and implemented without departing from the spirit of the present invention.

[0014]

As is clear from the above description, the molded container according to the present invention is made of polyethylene, polystyrene,
It is made of a new material that is obtained by blending a highly crushed or crushed kneaded emulsion into a synthetic resin material with a high weight ratio of 30 to 60% in a highly extensible synthetic resin material such as polyethylene or polyvinyl chloride. Since only thin sheet material is molded by vacuum or blow molding means as a molding material, the burning calories during combustion can be reduced to only synthetic resin materials such as polypropylene by using a high proportion of tea husks. It is possible to significantly reduce the calories and reduce the adverse effects on the incineration equipment, reduce the amount of toxic gas generated, and when discarded as garbage, Natural decomposition can be promoted and it can greatly contribute to social problems such as improvement of environmental pollution. Therefore, by using this, it is possible to manufacture a container having a sterilizing property, and it is possible to provide a container suitable for long-term storage by suppressing decay of the articles contained in the container. It has a remarkable effect. In addition, tea husk is a waste material that is difficult to reuse and is a bulky waste material. However, since tea husk is used, there is an effect that the cost can be effectively reduced as a disposable container.

[Brief description of the drawings]

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

Claims (1)

(57) [Claims] 1. An extensible synthetic resin material such as polyethylene, polystyrene, polypropylene, polyurethane, polyvinyl chloride or the like, which is obtained by pulverizing tea husks or emulsifying them by crushing and kneading to obtain an emulsion.
% Of blended a high proportion of sheet material to form thin, thin this
A molded container formed by vacuum or blow molding using only sheet material as molding material.